@import"https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap";:root{--qc-text-primary: #16212d;--qc-text-primary-rgb: 22 33 45;--qc-text-primary-alpha: 1;--qc-text-secondary: #536273;--qc-text-secondary-rgb: 83 98 115;--qc-text-secondary-alpha: 1;--qc-ink-rgb: 22 33 45;--qc-panel-rgb: 255 255 255;--qc-surface-page: #edf3f7;--qc-surface-page-rgb: 237 243 247;--qc-surface-page-alpha: 1;--qc-surface-panel: #ffffff;--qc-surface-panel-rgb: 255 255 255;--qc-surface-panel-alpha: 1;--qc-border-default: oklch(.86 .01 228);--qc-border-default-rgb: 203 210 214;--qc-border-default-alpha: 1;--qc-border-strong: rgba(22, 33, 45, .22);--qc-border-strong-rgb: 22 33 45;--qc-border-strong-alpha: .22;--qc-accent-teal: #17847c;--qc-accent-teal-rgb: 23 132 124;--qc-accent-teal-alpha: 1;--qc-accent-teal-strong: #0d5e59;--qc-accent-teal-strong-rgb: 13 94 89;--qc-accent-teal-strong-alpha: 1;--qc-accent-blue: #1a73e8;--qc-accent-blue-rgb: 26 115 232;--qc-accent-blue-alpha: 1;--qc-accent-amber: #c9903d;--qc-accent-amber-rgb: 201 144 61;--qc-accent-amber-alpha: 1;--qc-semantic-danger: #c44735;--qc-semantic-danger-rgb: 196 71 53;--qc-semantic-danger-alpha: 1;--qc-semantic-success: #0f8f62;--qc-semantic-success-rgb: 15 143 98;--qc-semantic-success-alpha: 1;--shadow-soft: 0 10px 32px rgba(13, 25, 39, .07);--page-background: radial-gradient(circle at 76% -16%, rgba(104, 154, 205, .08), transparent 42rem), radial-gradient(circle at 2% 4%, rgba(29, 137, 128, .055), transparent 36rem), linear-gradient(180deg, #edf3f7 0%, #e7eef4 52%, #e4ebf1 100%);--ghost-surface: rgba(255, 255, 255, .68);--qc-surface-field: #fbfcfd;--qc-surface-field-rgb: 251 252 253;--qc-surface-field-alpha: 1;--qc-surface-translucent: rgba(255, 255, 255, .78);--qc-surface-muted: #f5f7fa;--qc-surface-subtle: #f8f9fb;--font-ui: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;--font-display: "Space Grotesk", "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;--font-code: var(--font-ui);--weight-regular: 400;--weight-medium: 500;--weight-semibold: 600;--weight-bold: 700;--motion-instant: 90ms;--motion-quick: .14s;--motion-standard: .22s;--ease-out-expo: cubic-bezier(.16, 1, .3, 1);--motion-control-transition: transform var(--motion-quick) var(--ease-out-expo), border-color var(--motion-quick) var(--ease-out-expo), background-color var(--motion-quick) var(--ease-out-expo), box-shadow var(--motion-quick) var(--ease-out-expo), color var(--motion-quick) var(--ease-out-expo)}:root[data-theme=dark]{--qc-text-primary: #edf3f7;--qc-text-primary-rgb: 237 243 247;--qc-text-primary-alpha: 1;--qc-text-secondary: #a9b7c7;--qc-text-secondary-rgb: 169 183 199;--qc-text-secondary-alpha: 1;--qc-ink-rgb: 237 243 247;--qc-panel-rgb: 19 31 45;--qc-surface-page: #0d1723;--qc-surface-page-rgb: 13 23 35;--qc-surface-page-alpha: 1;--qc-surface-panel: #142033;--qc-surface-panel-rgb: 20 32 51;--qc-surface-panel-alpha: 1;--qc-border-default: oklch(.44 .014 248);--qc-border-default-rgb: 75 83 94;--qc-border-default-alpha: 1;--qc-border-strong: rgba(177, 194, 213, .28);--qc-border-strong-rgb: 177 194 213;--qc-border-strong-alpha: .28;--qc-accent-teal: #4d9a91;--qc-accent-teal-rgb: 77 154 145;--qc-accent-teal-alpha: 1;--qc-accent-teal-strong: #69b3aa;--qc-accent-teal-strong-rgb: 105 179 170;--qc-accent-teal-strong-alpha: 1;--qc-accent-blue: #94afcf;--qc-accent-blue-rgb: 148 175 207;--qc-accent-blue-alpha: 1;--qc-accent-amber: #d9aa69;--qc-accent-amber-rgb: 217 170 105;--qc-accent-amber-alpha: 1;--qc-semantic-danger: #ca8992;--qc-semantic-danger-rgb: 202 137 146;--qc-semantic-danger-alpha: 1;--qc-semantic-success: #69b3aa;--qc-semantic-success-rgb: 105 179 170;--qc-semantic-success-alpha: 1;--shadow-soft: 0 18px 44px rgba(3, 9, 17, .34);--page-background: radial-gradient(circle at 10% -8%, rgba(105, 179, 170, .055), transparent 27rem), radial-gradient(circle at 88% 4%, rgba(148, 175, 207, .05), transparent 30rem), linear-gradient(180deg, #0e1926 0%, #111d2c 48%, #0d1723 100%);--ghost-surface: rgba(20, 32, 51, .82);--qc-surface-field: rgba(16, 27, 42, .94);--qc-surface-field-rgb: 16 27 42;--qc-surface-field-alpha: .94;--qc-surface-translucent: rgba(24, 38, 57, .88);--qc-surface-muted: rgba(27, 42, 60, .9);--qc-surface-subtle: rgba(22, 35, 52, .92);--control-bg: linear-gradient(180deg, rgba(30, 45, 64, .9), rgba(20, 32, 48, .95));--control-bg-hover: linear-gradient(180deg, rgba(38, 55, 76, .94), rgba(24, 38, 56, .98));--control-border: rgba(177, 194, 213, .18);--control-shadow: inset 0 1px 0 rgba(239, 246, 255, .065), 0 10px 24px rgba(3, 9, 17, .2);--control-shadow-hover: inset 0 1px 0 rgba(239, 246, 255, .085), 0 14px 30px rgba(3, 9, 17, .25);--control-muted: #c3d0de}*{box-sizing:border-box}:root{--study-weak: #d94f6a;--study-mastered: #16895f;--study-progress-track: #eef2f6;--study-code-surface: linear-gradient(180deg, #f0f6fb, #e8f0f8);--study-code-ink: #1a3a50;--study-feedback-correct-bg: linear-gradient(135deg, #eefaf4, #f5fff9);--study-feedback-wrong-bg: linear-gradient(135deg, #fff5f2, #fffaf9);--study-rail-glass-edge: var(--qc-liquid-card-edge);--study-rail-glass-highlight: var(--qc-liquid-top-highlight)}:root[data-theme=dark]{--study-weak: #d97f8c;--study-mastered: #2c7d70;--study-progress-track: rgba(141, 165, 203, .16);--study-code-surface: linear-gradient(180deg, #0a1726, #0d1c2d);--study-code-ink: #c7e3ff;--study-feedback-correct-bg: linear-gradient(135deg, rgba(11, 63, 49, .92), rgba(10, 54, 43, .86));--study-feedback-wrong-bg: linear-gradient(135deg, rgba(78, 28, 20, .92), rgba(62, 24, 17, .86));--study-rail-glass-edge: var(--qc-liquid-card-edge);--study-rail-glass-highlight: var(--qc-liquid-top-highlight)}*,*:before,*:after{border-color:var(--qc-border-default);border-style:solid;border-width:0}html{background:var(--page-background);background-color:var(--qc-surface-page);font-size:16.5px;min-height:100%;overscroll-behavior-y:none}body{margin:0;min-height:100vh;min-height:100dvh;color:var(--qc-text-primary);background:var(--page-background);background-color:var(--qc-surface-page);font-family:var(--font-ui);font-weight:var(--weight-regular);line-height:1.5}h1,h2,h3,h4,h5,h6{font-family:var(--font-display)}#root{background:var(--page-background);background-color:var(--qc-surface-page);min-height:100vh;min-height:100dvh}button,input,textarea,select{font:inherit}button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--qc-border-default);border-radius:12px;padding:10px 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0%, oklch(.91 .016 222 / 58%) 28%, oklch(.68 .028 246 / 42%) 70%, oklch(.96 .01 224 / 68%) 100% );--qc-liquid-panel-blur: blur(26px) saturate(1.18);--qc-liquid-panel-shadow: inset 0 1px 0 oklch(1 0 0 / 72%), inset 1px 0 0 oklch(1 0 0 / 34%), inset -1px 0 0 oklch(.58 .03 248 / 11%), inset 0 -1px 0 oklch(.46 .024 245 / 20%), 0 1px 2px oklch(.19 .01 252 / 7%), 0 16px 36px -18px oklch(.22 .03 250 / 25%);--qc-liquid-card-shadow: inset 0 1px 0 var(--qc-liquid-top-highlight), 0 1px 1px oklch(.19 .01 252 / 10%), 0 8px 18px oklch(.22 .02 250 / 10%);--qc-liquid-control-bg: color-mix(in srgb, var(--qc-surface-field) 90%, transparent);--qc-liquid-control-bg-hover: color-mix(in srgb, var(--qc-accent-teal) 5%, var(--qc-surface-field));--qc-liquid-control-edge: var(--qc-liquid-card-edge);--qc-liquid-control-shadow: inset 0 1px 0 0 rgba(255, 255, 255, .85), 0 1px 1px 0 rgba(15, 23, 42, .07), 0 2px 4px -1px rgba(15, 23, 42, .1);--qc-liquid-control-pressed-shadow: inset 0 2px 4px 0 rgba(15, 23, 42, .14), inset 0 -1px 0 0 rgba(255, 255, 255, .55);--qc-liquid-band-bg: radial-gradient(140% 120% at 8% 0%, rgba(255, 255, 255, .96) 0%, rgba(255, 255, 255, .34) 31%, transparent 54%), radial-gradient(120% 120% at 88% 12%, rgba(211, 226, 238, .68) 0%, rgba(211, 226, 238, .2) 36%, transparent 62%), linear-gradient(135deg, rgba(243, 247, 250, .96) 0%, rgba(229, 237, 244, .9) 52%, rgba(247, 250, 252, .96) 100%);--qc-liquid-band-edge: var(--qc-liquid-card-edge);--qc-liquid-band-highlight: var(--qc-liquid-top-highlight);--qc-liquid-band-shadow: inset 0 1px 0 var(--qc-liquid-band-highlight), inset 0 -1px 0 rgba(128, 145, 163, .08);--qc-liquid-band-sheen: linear-gradient(118deg, transparent 0 20%, rgba(255, 255, 255, .42) 32%, transparent 48%), radial-gradient(110% 90% at 12% 0%, rgba(255, 255, 255, .5), transparent 48%)}:root[data-theme=dark]{--qc-liquid-card-edge: oklch(.66 .05 250 / 22%);--qc-liquid-top-highlight: oklch(.88 .018 240 / 10%);--qc-liquid-panel-bg: radial-gradient(110% 82% at 6% 0%, oklch(.82 .025 235 / 11%), transparent 54%), radial-gradient(92% 110% at 100% 100%, oklch(.46 .055 245 / 12%), transparent 66%), linear-gradient(145deg, oklch(.235 .026 250 / 66%), oklch(.19 .024 252 / 54%));--qc-liquid-panel-rim: linear-gradient( 145deg, oklch(.86 .022 230 / 42%) 0%, oklch(.68 .035 235 / 25%) 30%, oklch(.48 .06 252 / 18%) 70%, oklch(.76 .026 225 / 28%) 100% );--qc-liquid-panel-blur: blur(26px) saturate(1.12);--qc-liquid-panel-shadow: inset 0 1px 0 oklch(.9 .018 235 / 19%), inset 1px 0 0 oklch(.84 .02 230 / 9%), inset -1px 0 0 oklch(.42 .055 252 / 12%), inset 0 -1px 0 oklch(.08 .018 252 / 38%), 0 2px 4px oklch(.06 .015 252 / 28%), 0 22px 46px -20px oklch(.04 .025 252 / 62%);--qc-liquid-card-shadow: inset 0 1px 0 var(--qc-liquid-top-highlight), inset 0 0 0 1px oklch(.86 .018 240 / 3%), 0 1px 1px oklch(.08 .01 252 / 28%), 0 14px 30px oklch(.08 .02 250 / 24%);--qc-liquid-control-bg: rgba(25, 39, 58, .86);--qc-liquid-control-bg-hover: rgba(33, 49, 68, .94);--qc-liquid-control-edge: var(--qc-liquid-card-edge);--qc-liquid-control-shadow: inset 0 1px 0 0 rgba(255, 255, 255, .07), 0 1px 2px 0 rgba(3, 9, 17, .34), 0 3px 6px -2px rgba(3, 9, 17, .36);--qc-liquid-control-pressed-shadow: inset 0 2px 6px 0 rgba(3, 9, 17, .52), inset 0 1px 2px 0 rgba(3, 9, 17, .42);--qc-liquid-band-bg: radial-gradient(140% 120% at 8% 0%, rgba(116, 174, 186, .1) 0%, rgba(116, 174, 186, .035) 35%, transparent 60%), radial-gradient(120% 120% at 88% 12%, rgba(112, 140, 174, .18) 0%, rgba(112, 140, 174, .065) 40%, transparent 66%), linear-gradient(135deg, rgba(25, 40, 59, .9) 0%, rgba(18, 31, 47, .86) 55%, rgba(27, 43, 62, .9) 100%);--qc-liquid-band-edge: var(--qc-liquid-card-edge);--qc-liquid-band-highlight: var(--qc-liquid-top-highlight);--qc-liquid-band-shadow: inset 0 1px 0 var(--qc-liquid-band-highlight), inset 0 -1px 0 rgba(3, 9, 17, .22), 0 14px 34px rgba(3, 9, 17, .2);--qc-liquid-band-sheen: linear-gradient(118deg, transparent 0 25%, rgba(211, 226, 240, .055) 37%, transparent 54%), radial-gradient(110% 90% at 12% 0%, rgba(211, 226, 240, .075), transparent 52%)}.qc-liquid-band{-webkit-backdrop-filter:blur(14px) saturate(1.08);backdrop-filter:blur(14px) saturate(1.08);background:var(--qc-liquid-band-bg);border-color:var(--qc-liquid-band-edge);box-shadow:var(--qc-liquid-band-shadow);isolation:isolate;overflow:hidden;position:relative}.qc-liquid-band:before,.qc-liquid-band:after{content:"";inset:0;pointer-events:none;position:absolute;z-index:0}.qc-liquid-band:before{background:var(--qc-liquid-band-sheen);opacity:.9}.qc-liquid-band:after{background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent),linear-gradient(180deg,transparent 55%,rgba(113,132,153,.08));mix-blend-mode:soft-light}:root[data-theme=dark] .qc-liquid-band:after{background:linear-gradient(90deg,transparent,rgba(213,227,240,.055),transparent),linear-gradient(180deg,transparent 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.qtheory-brand__asset--dark{display:block}.asset-icon{display:block;-o-object-fit:contain;object-fit:contain;flex-shrink:0;-webkit-user-select:none;-moz-user-select:none;user-select:none;pointer-events:none}.asset-icon-stack{position:relative;display:inline-block;-o-object-fit:initial;object-fit:initial;overflow:visible;line-height:0;vertical-align:middle}.asset-icon-stack__image{position:absolute;inset:0;display:block;width:100%;height:100%;-o-object-fit:contain;object-fit:contain;-webkit-user-select:none;-moz-user-select:none;user-select:none;pointer-events:none}.asset-icon-stack__image--dark{display:none}:root[data-theme=dark] .asset-icon-stack__image--light{display:none}:root[data-theme=dark] .asset-icon-stack__image--dark{display:block}.asset-icon-frame{overflow:visible}.asset-icon--tile{width:56px;height:56px;border-radius:16px;filter:drop-shadow(0 10px 16px rgba(13,25,39,.1))}.library-card-source-icon{background:transparent;border:0;border-radius:0;box-shadow:none;display:block;filter:none;-o-object-fit:contain;object-fit:contain}.library-card-source-icon-stack{display:inline-grid;place-items:center}.library-card-source-icon__image{display:block;grid-area:1 / 1;height:100%;-o-object-fit:contain;object-fit:contain;width:100%}.library-card-source-icon__image--dark{display:none}:root[data-theme=dark] .library-card-source-icon__image--light{display:none}:root[data-theme=dark] .library-card-source-icon__image--dark{display:block}.library-tile-icon{--library-tile-bg: color-mix(in srgb, var(--qc-accent-teal) 12%, var(--qc-surface-panel));--library-tile-border: color-mix(in srgb, var(--qc-accent-teal) 24%, var(--qc-border-default));--library-tile-ink: var(--qc-accent-teal-strong);--library-tile-accent: #5fb9ad;align-items:center;aspect-ratio:1;background:linear-gradient(145deg,rgba(255,255,255,.66),transparent 42%),radial-gradient(circle at 32% 24%,rgba(255,255,255,.72),transparent 30%),var(--library-tile-bg);border:1px solid var(--library-tile-border);border-radius:15px;box-shadow:inset 0 1px #ffffffb8,0 7px 14px #0d192714;color:var(--library-tile-ink);display:inline-grid;justify-items:center;overflow:hidden;position:relative}.library-tile-icon:after{background:linear-gradient(135deg,rgba(255,255,255,.5),transparent 48%);border-radius:inherit;content:"";inset:3px;opacity:.5;pointer-events:none;position:absolute}.library-tile-icon--generated{--library-tile-bg: color-mix(in srgb, #e9bb68 18%, var(--qc-surface-panel));--library-tile-border: color-mix(in srgb, #d79d3d 24%, var(--qc-border-default));--library-tile-ink: #876119;--library-tile-accent: #d59232}.library-tile-icon--folder{--library-tile-bg: color-mix(in srgb, #77bea8 14%, var(--qc-surface-panel));--library-tile-border: color-mix(in srgb, #539c89 24%, var(--qc-border-default));--library-tile-ink: #256257;--library-tile-accent: #5a9f90}.library-tile-icon--today{--library-tile-bg: color-mix(in srgb, var(--qc-accent-teal) 16%, var(--qc-surface-panel));--library-tile-border: color-mix(in srgb, var(--qc-accent-teal) 34%, var(--qc-border-default));--library-tile-ink: var(--qc-accent-teal-strong);--library-tile-accent: #3fa99d;border-radius:18px}.library-tile-icon__svg{height:76%;position:relative;width:76%;z-index:1}.library-tile-icon__shape,.library-tile-icon__line,.library-tile-icon__accent{stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke}.library-tile-icon__shape{fill:color-mix(in srgb,currentColor 7%,transparent);stroke:currentColor;stroke-width:2.4}.library-tile-icon__line{stroke:color-mix(in srgb,currentColor 74%,transparent);stroke-width:2.1}.library-tile-icon__accent{fill:none;stroke:var(--library-tile-accent);stroke-width:2.5}.library-tile-icon__accent--bold{stroke-width:4}:root[data-theme=dark] .library-tile-icon{--library-tile-bg: color-mix(in srgb, var(--qc-accent-teal) 15%, #132033);--library-tile-border: color-mix(in srgb, var(--qc-accent-teal) 34%, rgba(169, 187, 213, .2));--library-tile-ink: color-mix(in srgb, var(--qc-accent-teal-strong) 60%, #d2ede7);--library-tile-accent: color-mix(in srgb, var(--qc-accent-teal-strong) 80%, #d2ede7);background:linear-gradient(145deg,rgba(255,255,255,.1),transparent 42%),radial-gradient(circle at 32% 24%,rgb(var(--qc-accent-teal-strong-rgb) / .18),transparent 32%),var(--library-tile-bg);box-shadow:inset 0 1px #ffffff2e,0 8px 16px #00000038}:root[data-theme=dark] .library-tile-icon:after{opacity:.18}:root[data-theme=dark] .library-tile-icon--generated{--library-tile-bg: color-mix(in srgb, #d8a24c 18%, #132033);--library-tile-border: color-mix(in srgb, #d8a24c 34%, rgba(169, 187, 213, .18));--library-tile-ink: #e8c17b;--library-tile-accent: #f0b95b}:root[data-theme=dark] .library-tile-icon--folder{--library-tile-bg: color-mix(in srgb, var(--qc-accent-teal) 15%, #132033);--library-tile-border: color-mix(in srgb, var(--qc-accent-teal) 32%, rgba(169, 187, 213, .18));--library-tile-ink: color-mix(in srgb, var(--qc-accent-teal-strong) 55%, #d2ede7);--library-tile-accent: color-mix(in srgb, var(--qc-accent-teal-strong) 74%, #d2ede7)}.asset-icon--dropzone{width:54px;height:54px;border-radius:16px;filter:drop-shadow(0 8px 16px rgba(13,25,39,.1))}.asset-icon--empty{width:82px;height:82px;border-radius:24px;filter:drop-shadow(0 14px 22px rgba(13,25,39,.12))}.start-page{--start-auth-band: oklch(.95 .018 190);--start-auth-band-end: oklch(.972 .009 220);--start-auth-ink: var(--qc-text-primary);--start-auth-muted: var(--qc-text-secondary);--start-auth-line: oklch(.7 .036 190 / .22);--start-auth-shadow: 0 24px 58px oklch(.4 .025 220 / .14), 0 3px 10px oklch(.4 .02 220 / .07);color-scheme:light}:root[data-theme=dark] .start-page{--start-auth-band: oklch(.205 .025 240);--start-auth-band-end: oklch(.245 .025 238);--start-auth-ink: var(--qc-text-primary);--start-auth-muted: var(--qc-text-secondary);--start-auth-line: oklch(.62 .03 212 / .16);--start-auth-shadow: 0 28px 68px oklch(.1 .02 240 / .42);color-scheme:dark}.start-workbook-frame{isolation:isolate}.start-workbook-frame:before,.start-workbook-frame:after{position:absolute;z-index:4;width:15px;height:15px;content:"";pointer-events:none}.start-workbook-frame:before{top:-7px;left:-7px;border-top:1px solid var(--qc-accent-blue);border-left:1px solid var(--qc-accent-blue)}.start-workbook-frame:after{right:-7px;bottom:-7px;border-right:1px solid var(--qc-accent-blue);border-bottom:1px solid var(--qc-accent-blue)}.start-hero-canvas{isolation:isolate;background:linear-gradient(180deg,#f5f7f9,#eef4f8 52%,#e7f1f7)}.start-hero-canvas:before{content:none}.start-hero-brand-motif{position:absolute;z-index:0;top:58px;right:-112px;width:clamp(340px,38vw,610px);aspect-ratio:1;opacity:.07;pointer-events:none;transform:rotate(-5deg)}:root[data-theme=dark] .start-hero-brand-motif{opacity:.1}.start-auth-band{isolation:isolate;background:linear-gradient(180deg,var(--start-auth-band) 0%,var(--start-auth-band-end) 100%)}.start-auth-band:before{position:absolute;z-index:0;inset:0;background-image:linear-gradient(var(--start-auth-line) 1px,transparent 1px),linear-gradient(90deg,var(--start-auth-line) 1px,transparent 1px);background-size:28px 28px;content:"";-webkit-mask-image:linear-gradient(90deg,black,transparent 72%);mask-image:linear-gradient(90deg,black,transparent 72%);opacity:.3;pointer-events:none}.start-hero-workflow{position:relative;isolation:isolate;display:grid;gap:16px;min-height:0}.start-hero-workflow__connectors{display:none;position:absolute;z-index:15;inset:0;width:100%;height:100%;overflow:visible;color:color-mix(in srgb,var(--qc-text-secondary) 88%,var(--qc-accent-teal));opacity:.8;pointer-events:none}.start-hero-workflow__connectors path{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.15;vector-effect:non-scaling-stroke}.start-hero-workflow__upload,.start-hero-workflow__editor,.start-hero-workflow__study{overflow:hidden;border:1px solid color-mix(in srgb,var(--qc-border-strong) 78%,transparent);border-radius:10px;background:var(--qc-surface-panel);box-shadow:0 14px 32px rgb(var(--qc-ink-rgb) / .1),0 2px 7px rgb(var(--qc-ink-rgb) / .06)}.start-hero-workflow__upload{z-index:30;width:min(100%,260px);justify-self:center}.start-hero-workflow__editor{z-index:20;width:min(100%,760px);justify-self:center}.start-hero-workflow__study{position:relative;z-index:10;width:min(100%,620px);min-height:350px;justify-self:center}@media(min-width:768px){.start-hero-workflow{display:block;min-height:500px}.start-hero-workflow__connectors{display:block}.start-hero-workflow__upload{position:absolute;top:0;left:3%;width:220px;justify-self:auto}.start-hero-workflow__editor{position:absolute;top:128px;left:3%;width:64%;justify-self:auto}.start-hero-workflow__study{position:absolute;top:108px;right:0;width:32%;min-height:0;justify-self:auto}}@media(max-width:767px){.start-hero-brand-motif{top:118px;right:-152px;width:360px;opacity:.055}}@media(min-width:1280px){.start-hero-workflow{min-height:520px;width:calc(100% + 86px);margin-left:-48px}.start-hero-workflow__upload{left:-6%;width:230px}.start-hero-workflow__editor{top:128px;left:-6%;width:64%}.start-hero-workflow__study{top:108px;right:50px;width:32%}}.start-session-handoff{position:relative;z-index:2;border-top:1px solid var(--start-auth-line);border-bottom:1px solid var(--start-auth-line);background:color-mix(in srgb,var(--start-auth-band) 72%,var(--qc-surface-panel))}.start-session-handoff__inner{display:grid;gap:12px;padding:12px 20px}.start-session-handoff__copy{min-width:0;align-self:center}.start-study-trail{display:block;height:64px;min-width:0;align-self:center;overflow:hidden}.start-study-trail__art{display:block;width:100%;height:64px;shape-rendering:geometricPrecision}.start-study-trail__art *{vector-effect:non-scaling-stroke}.start-study-trail__art--wide{display:none}.start-study-trail__art--compact{display:block}@media(min-width:768px){.start-session-handoff__inner{grid-template-columns:minmax(240px,.55fr) minmax(0,1.45fr);align-items:center;gap:40px;padding:12px 32px}.start-study-trail__art--wide{display:block}.start-study-trail__art--compact{display:none}}@media(min-width:1024px){.start-session-handoff__inner{gap:64px;padding-right:40px;padding-left:40px}}.start-page .auth-card input:is(:-webkit-autofill){-webkit-text-fill-color:var(--qc-text-primary);caret-color:var(--qc-text-primary);box-shadow:inset 0 0 0 1000px var(--qc-surface-field)}.start-page .auth-card input:is(:autofill,:-webkit-autofill){-webkit-text-fill-color:var(--qc-text-primary);caret-color:var(--qc-text-primary);box-shadow:inset 0 0 0 1000px var(--qc-surface-field)}.start-page .auth-card input:is(:-webkit-autofill):focus{outline:1px solid var(--qc-accent-teal);outline-offset:-1px}.start-page .auth-card input:is(:autofill,:-webkit-autofill):focus{outline:1px solid var(--qc-accent-teal);outline-offset:-1px}.start-page .auth-card{--qc-primary-action-shadow: inset 0 1px 0 rgb(255 255 255 / .24), 0 3px 0 color-mix(in srgb, var(--qc-accent-teal-strong) 70%, var(--qc-text-primary)), 0 5px 9px rgb(var(--qc-ink-rgb) / .12);--qc-primary-action-shadow-hover: inset 0 1px 0 rgb(255 255 255 / .3), 0 4px 0 color-mix(in srgb, var(--qc-accent-teal-strong) 70%, var(--qc-text-primary)), 0 7px 12px rgb(var(--qc-ink-rgb) / .14)}.start-page .start-auth-key{border-color:transparent;background-color:transparent;--tw-text-opacity: 1;color:rgb(var(--qc-text-secondary-rgb) / calc(var(--qc-text-secondary-alpha) * var(--tw-text-opacity, 1)));box-shadow:none;transform:none}.start-page .start-auth-key[aria-pressed=true]{--tw-border-opacity: 1;border-color:rgb(var(--qc-border-default-rgb) / calc(var(--qc-border-default-alpha) * var(--tw-border-opacity, 1)));--tw-bg-opacity: 1;background-color:rgb(var(--qc-surface-panel-rgb) / calc(var(--qc-surface-panel-alpha) * var(--tw-bg-opacity, 1)));--tw-text-opacity: 1;color:rgb(var(--qc-accent-teal-strong-rgb) / calc(var(--qc-accent-teal-strong-alpha) * var(--tw-text-opacity, 1)));box-shadow:inset 0 1px 0 var(--qc-surface-field),0 2px 0 var(--qc-border-default),0 3px 5px rgb(var(--qc-ink-rgb) / .06)}.start-page .start-auth-key:hover:not(:disabled){--tw-border-opacity: 1;border-color:rgb(var(--qc-border-default-rgb) / calc(var(--qc-border-default-alpha) * var(--tw-border-opacity, 1)));--tw-text-opacity: 1;color:rgb(var(--qc-text-primary-rgb) / calc(var(--qc-text-primary-alpha) * var(--tw-text-opacity, 1)));transform:translateY(-1px)}.start-page .start-auth-key:active:not(:disabled),.start-page .auth-card .primary-action:active:not(:disabled){transform:translateY(2px);box-shadow:inset 0 1px 2px rgb(var(--qc-ink-rgb) / .16)}.theme-toggle{min-height:40px;padding:8px 12px;border-color:var(--qc-border-default);background:var(--ghost-surface);color:var(--qc-text-primary);box-shadow:var(--shadow-soft)}.theme-toggle.compact{min-height:38px;padding:8px 10px;gap:7px}.theme-toggle__icon{display:inline-grid;place-items:center;width:22px;height:22px;border-radius:999px;color:var(--qc-accent-teal-strong);background:#1a73e814}.theme-toggle__glyph{display:inline-grid;place-items:center}:root[data-theme=dark] .theme-toggle__icon{color:var(--control-muted);background:#bfd0e714}:root[data-theme=dark] .theme-toggle{background:var(--control-bg);border-color:var(--control-border);box-shadow:var(--control-shadow);color:var(--control-muted)}:root[data-theme=dark] .theme-toggle:hover:not(:disabled){background:var(--control-bg-hover);border-color:var(--control-border);box-shadow:var(--control-shadow-hover)}:root[data-theme=dark] .primary-action{background:var(--qc-primary-action-bg);border-color:var(--qc-primary-action-border);box-shadow:var(--qc-primary-action-shadow);color:var(--qc-primary-action-ink)}:root[data-theme=dark] .primary-action:hover:not(:disabled){background:var(--qc-primary-action-bg-hover);border-color:var(--qc-primary-action-border-hover);box-shadow:var(--qc-primary-action-shadow-hover);color:var(--qc-primary-action-ink)}:root[data-theme=dark] .ghost-action{background:#182639db}:root[data-theme=dark] .theme-toggle{color:var(--control-muted)}.page{width:min(1660px,calc(100% - 42px));margin:0 auto;padding:24px 0 40px}.study-shell{min-height:100vh}@media(max-width:900px){.page{width:min(100% - 24px,1600px);padding-top:18px}}:root{--app-sidebar-expanded: 248px;--app-sidebar-collapsed: 64px;--app-sidebar-surface: linear-gradient(180deg, color-mix(in srgb, var(--qc-surface-panel) 88%, transparent), color-mix(in srgb, var(--qc-surface-panel) 81%, transparent));--app-sidebar-divider: color-mix(in srgb, var(--qc-border-default) 58%, transparent);--app-sidebar-motion-duration: .29s;--app-sidebar-motion-fast: .18s;--app-sidebar-motion-ease: cubic-bezier(.25, 1, .5, 1)}:root[data-theme=dark]{--app-sidebar-surface: linear-gradient(180deg, color-mix(in srgb, var(--qc-surface-panel) 89%, transparent), color-mix(in srgb, var(--qc-surface-panel) 83%, transparent));--app-sidebar-divider: color-mix(in srgb, var(--qc-border-default) 62%, transparent)}.app-shell--persistent{min-height:100vh}.app-shell--persistent .app-shell__workspace{min-height:100vh;padding-left:var(--app-sidebar-expanded)}.app-shell--sidebar-collapsed .app-shell__workspace{padding-left:var(--app-sidebar-collapsed)}.app-sidebar{isolation:isolate;overflow:hidden;pointer-events:none;width:var(--app-sidebar-expanded)}.app-sidebar__panel-surface{-webkit-backdrop-filter:blur(18px) saturate(1.04);backdrop-filter:blur(18px) saturate(1.04);background:var(--app-sidebar-surface);border-right:1px solid var(--app-sidebar-divider);will-change:transform}.app-sidebar__content{pointer-events:auto;will-change:transform}.app-sidebar__motion-layer{backface-visibility:hidden;will-change:opacity,transform}.app-sidebar__brand{--app-sidebar-brand-duration: .32s;clip-path:inset(0 0 0 0);transition:clip-path var(--app-sidebar-brand-duration) var(--app-sidebar-motion-ease),background-color .15s var(--app-sidebar-motion-ease),border-color .15s var(--app-sidebar-motion-ease),color .15s var(--app-sidebar-motion-ease)}.app-sidebar.is-collapsed .app-sidebar__brand{--app-sidebar-brand-duration: .26s;clip-path:inset(0 94px 0 0)}.app-sidebar__brand-wordmark{opacity:1;transition:opacity .12s var(--app-sidebar-motion-ease) 50ms,visibility 0s linear 50ms;visibility:visible}.app-sidebar.is-collapsed .app-sidebar__brand-wordmark{opacity:0;transition-delay:0s;visibility:hidden}.app-sidebar-backdrop{opacity:0;pointer-events:none;visibility:hidden;transition:opacity var(--app-sidebar-motion-fast) var(--app-sidebar-motion-ease),visibility 0s linear var(--app-sidebar-motion-duration)}.app-sidebar-backdrop.is-open{opacity:1;pointer-events:auto;visibility:visible;transition-delay:0s}.app-sidebar.is-collapsed .app-sidebar__content{pointer-events:none}.app-sidebar.is-collapsed .app-sidebar__content :is(.app-sidebar__toggle,.app-sidebar__global-nav,footer){pointer-events:auto}.app-sidebar button:disabled{cursor:not-allowed;opacity:.5}.app-sidebar button:not(.app-sidebar__toggle):is(:hover,:active){transform:none}.app-shell--persistent .library-navbar{grid-template-columns:minmax(150px,220px) minmax(280px,1fr) max-content;padding-inline:clamp(18px,3vw,42px)}.app-shell--persistent .library-navbar__brand,.app-shell--persistent .app-sidebar-mobile-trigger{display:none}.app-shell--persistent .library-workspace{grid-template-columns:minmax(0,1fr)}.app-shell--persistent .library-main{grid-column:1}.app-shell--persistent .study-page{max-width:1420px}@media(max-width:760px){.app-shell--persistent .app-shell__workspace,.app-shell--sidebar-collapsed .app-shell__workspace{padding-left:0}.app-sidebar,.app-sidebar.is-collapsed,.app-sidebar.is-expanded,.app-sidebar__panel-surface,.app-sidebar__content{width:min(288px,86vw)}.app-sidebar.is-mobile-open{box-shadow:22px 0 46px -24px #0815217a}.app-shell--persistent .library-navbar{grid-template-columns:auto minmax(0,1fr) auto}.app-shell--persistent .library-navbar__brand{display:flex}.app-shell--persistent .app-sidebar-mobile-trigger{display:inline-flex}}@media(prefers-reduced-motion:reduce){.app-sidebar__brand{--app-sidebar-brand-duration: 0ms}.app-sidebar__brand-wordmark{transition:none}.app-sidebar-backdrop,.app-sidebar__context{animation:none;transition:none}}.library-shell{--library-page-bg: radial-gradient(54rem 30rem at 78% -12%, rgba(92, 153, 201, .07), transparent 66%), linear-gradient(180deg, #f1f5f7 0%, #ebf1f4 52%, #e7eef2 100%);--library-card-surface: rgba(249, 252, 254, .97);--library-panel-surface: rgba(244, 249, 252, .95);--library-hairline: var(--qc-liquid-card-edge);--library-border-strong: color-mix(in srgb, var(--qc-accent-teal) 18%, var(--qc-liquid-card-edge));background:var(--library-page-bg);min-height:100vh}:root[data-theme=dark] .library-shell{--library-page-bg: radial-gradient(64rem 38rem at 82% -12%, rgba(148, 175, 207, .1), transparent 62%), radial-gradient(48rem 34rem at 0% 4%, rgba(105, 179, 170, .07), transparent 60%), linear-gradient(180deg, #0e1926 0%, #111d2c 54%, #0d1723 100%);--library-card-surface: rgba(23, 37, 56, .62);--library-panel-surface: rgba(24, 38, 57, .82);--library-hairline: var(--qc-liquid-card-edge);--library-border-strong: color-mix(in srgb, var(--qc-accent-teal) 18%, var(--qc-liquid-card-edge));background:var(--library-page-bg)}.library-navbar{align-items:center;background:var(--library-page-bg);background-attachment:fixed;border:0;box-shadow:none;display:grid;gap:18px;grid-template-columns:minmax(90px,max-content) minmax(140px,max-content) minmax(280px,1fr) max-content;margin:0 auto;min-height:68px;padding:10px clamp(18px,3vw,48px);position:sticky;top:0;width:100%;z-index:30}.library-navbar__brand,.library-navbar__context,.library-navbar__actions{align-items:center;display:flex;min-width:0}.library-navbar__brand{gap:10px}.library-navbar__context{overflow:hidden}.library-navbar__context span{overflow:hidden;color:var(--qc-text-primary);font-family:var(--font-display);font-size:1rem;font-weight:var(--weight-semibold);line-height:1.15;text-overflow:ellipsis;white-space:nowrap}.library-navbar__rail-toggle{align-items:center;background:transparent;border:0;border-radius:0;box-shadow:none;color:var(--qc-text-secondary);display:inline-flex;flex:0 0 auto;height:36px;justify-content:center;padding:0;position:relative;width:30px;transition:color var(--motion-quick) var(--ease-out-expo)}.library-navbar__rail-toggle:after{background:transparent;border-radius:999px;bottom:1px;content:"";height:2px;left:5px;position:absolute;right:5px}.library-navbar__rail-toggle:hover,.library-navbar__rail-toggle[aria-expanded=true]{background:transparent;border-color:transparent;box-shadow:none;color:var(--qc-accent-teal-strong);transform:none}.library-navbar__rail-toggle:focus-visible{outline:0}.library-navbar__rail-toggle:focus-visible:after{background:var(--qc-accent-teal-strong)}.library-navbar__search{align-items:center;justify-self:center;background:color-mix(in srgb,var(--library-card-surface) 82%,transparent);border:1px solid var(--library-hairline);border-radius:8px;box-shadow:inset 0 1px #ffffffc7,0 2px 8px #2e49620d;color:var(--qc-text-secondary);display:grid;gap:9px;grid-template-columns:auto minmax(0,1fr);max-width:640px;min-height:38px;padding:0 12px;width:min(100%,640px);transition:background .18s ease,border-color .18s ease,box-shadow .18s ease}.library-navbar__search:focus-within{background:color-mix(in srgb,var(--qc-accent-teal) 4%,var(--library-card-surface));border-color:color-mix(in srgb,var(--qc-accent-teal) 34%,var(--library-border-strong));box-shadow:none}.library-navbar__search svg{color:var(--qc-text-secondary);transition:color .18s ease}.library-navbar__search:focus-within svg{color:var(--qc-accent-teal-strong)}.library-navbar__search input{background:transparent;border:0;color:var(--qc-text-primary);font-size:.98rem;font-weight:var(--weight-regular);min-width:0;outline:0;width:100%}.library-navbar__search input::-moz-placeholder{color:var(--qc-text-secondary)}.library-navbar__search input::placeholder{color:var(--qc-text-secondary)}.library-navbar__actions{gap:8px;justify-content:flex-end}.library-navbar__dropdown{position:relative}.library-create-btn{align-items:center;background:color-mix(in srgb,var(--qc-accent-teal) 9%,var(--library-card-surface));border:1px solid color-mix(in srgb,var(--qc-accent-teal) 24%,var(--library-hairline));color:var(--qc-accent-teal-strong);display:inline-flex;font-family:var(--font-ui);font-size:.96rem;font-weight:var(--weight-semibold);gap:8px;justify-content:center;min-height:42px;padding:0 16px;position:relative;text-decoration:none;transition:background-color var(--motion-standard) var(--ease-out-expo),color var(--motion-standard) var(--ease-out-expo),transform var(--motion-standard) var(--ease-out-expo);cursor:pointer;border-radius:9px;box-shadow:inset 0 1px #ffffffa8}.library-create-btn:hover,.library-create-btn[aria-expanded=true]{background:color-mix(in srgb,var(--qc-accent-teal) 14%,var(--library-card-surface));color:var(--qc-accent-teal-strong);border-color:color-mix(in srgb,var(--qc-accent-teal) 38%,var(--library-hairline));box-shadow:0 6px 16px #1467601f}.library-navbar__dropdown-menu{--qc-menu-min-width: 188px}.library-navbar__create-menu{--qc-menu-gap: 5px;--qc-menu-item-font-size: .95rem;--qc-menu-item-font-weight: var(--weight-medium);--qc-menu-item-gap: 11px;--qc-menu-item-min-height: 50px;--qc-menu-item-padding: 11px 12px;--qc-menu-min-width: 202px;--qc-menu-padding: 8px}.library-navbar__create-menu button svg{height:19px;width:19px}:root[data-theme=dark] .library-navbar__search{background:#182639b8;border-color:var(--library-hairline);box-shadow:inset 0 1px #eff6ff0b}:root[data-theme=dark] .library-navbar__search:focus-within{background:#1e2e41e6;border-color:color-mix(in srgb,var(--qc-accent-blue) 26%,var(--library-hairline));box-shadow:0 2px #0309113d}:root[data-theme=dark] .library-navbar__search input{color:var(--qc-text-primary)}:root[data-theme=dark] .library-navbar__search input::-moz-placeholder{color:var(--qc-text-secondary)}:root[data-theme=dark] .library-navbar__search,:root[data-theme=dark] .library-navbar__search input::placeholder{color:var(--qc-text-secondary)}:root[data-theme=dark] .library-create-btn:hover,:root[data-theme=dark] .library-create-btn[aria-expanded=true]{background:rgb(var(--qc-accent-teal-strong-rgb) / .1);color:var(--qc-accent-teal-strong)}@media(max-width:1180px){.library-navbar{grid-template-columns:minmax(90px,max-content) minmax(120px,max-content) minmax(220px,1fr) auto}}@media(max-width:760px){.library-navbar{gap:10px;grid-template-columns:auto minmax(0,1fr) auto;min-height:116px;padding:12px 14px 10px}.library-navbar:after{left:14px;right:14px}.library-navbar__search{grid-column:1 / -1;grid-row:2;justify-self:stretch;max-width:none;min-height:40px;order:3;width:100%}.library-navbar__actions{gap:6px}}.library-command{display:grid;gap:18px;width:min(1180px,100%)}.library-action-tile{display:grid;justify-items:start;gap:8px;min-height:138px;padding:20px 22px;border:1px solid color-mix(in srgb,var(--qc-border-default) 88%,transparent);border-radius:24px;background:color-mix(in srgb,var(--qc-surface-panel) 76%,transparent);box-shadow:0 12px 24px #0d192709;text-align:left}.library-action-tile.primary{background:var(--qc-primary-action-bg);border-color:var(--qc-primary-action-border);box-shadow:var(--qc-primary-action-shadow);color:var(--qc-primary-action-ink)}.library-action-tile.primary:hover:not(:disabled){background:var(--qc-primary-action-bg-hover);border-color:var(--qc-primary-action-border-hover);box-shadow:var(--qc-primary-action-shadow-hover);color:var(--qc-primary-action-ink)}.library-action-tile__icon{display:inline-grid;place-items:center;width:56px;height:56px;border-radius:14px;color:var(--qc-text-primary);background:linear-gradient(135deg,#ffffffe0,#e5edffb3);box-shadow:0 10px 18px #0d192712}.library-action-tile.primary .library-action-tile__icon{color:#15564f;background:linear-gradient(135deg,#fffffff5,#d8f2eee0)}.library-action-tile strong{color:var(--qc-text-primary);font-size:1.32rem;font-weight:var(--weight-semibold)}.library-action-tile span{color:var(--qc-text-secondary);line-height:1.5}.library-action-tile.import{cursor:pointer}.library-action-tile.import input{display:none}.library-section-head{display:flex;align-items:end;justify-content:space-between;gap:14px}.library-section-head h2{margin:0;font-size:1.82rem;font-weight:var(--weight-semibold);letter-spacing:0;line-height:1.1}.library-section-head__title-row{align-items:baseline;display:flex;flex-wrap:wrap;gap:9px;margin-top:0}.library-set-count{color:var(--qc-text-secondary);font-size:.86rem;font-weight:var(--weight-regular)}.library-section-head__tools{align-items:center;display:inline-flex;gap:12px;justify-content:flex-end}.library-sort-control{align-items:center;background:color-mix(in srgb,var(--library-card-surface) 78%,transparent);border:1px solid var(--library-hairline);border-radius:12px;box-shadow:inset 0 1px color-mix(in srgb,white 68%,transparent);color:var(--qc-text-secondary);display:inline-flex;height:40px;padding:0 10px 0 12px}.library-sort-control select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:transparent;border:0;color:var(--qc-text-primary);cursor:pointer;font:inherit;font-size:.86rem;font-weight:var(--weight-medium);min-width:116px;outline:0;padding:0 8px}.library-sort-control:focus-within{border-color:color-mix(in srgb,var(--qc-accent-teal) 52%,var(--qc-border-default));box-shadow:none}.library-section-head .eyebrow{font-size:.78rem;font-weight:var(--weight-medium);letter-spacing:.015em;line-height:1.2;text-transform:none}.library-view-actions{display:inline-flex;gap:8px}.library-view-actions button{width:40px;height:40px;padding:0;border-radius:12px;border-color:var(--library-hairline);background:color-mix(in srgb,var(--library-card-surface) 76%,transparent);box-shadow:inset 0 1px color-mix(in srgb,white 68%,transparent)}.library-view-actions button.active{color:var(--qc-accent-teal-strong);background:linear-gradient(180deg,color-mix(in srgb,white 44%,transparent),transparent),color-mix(in srgb,var(--qc-accent-teal) 11%,var(--library-card-surface));border-color:color-mix(in srgb,var(--qc-accent-teal) 34%,var(--qc-border-default));box-shadow:inset 0 1px color-mix(in srgb,white 68%,transparent),0 3px 8px #1b5e581c}:root[data-theme=dark] .library-view-actions button{box-shadow:inset 0 1px #ddecff0b}:root[data-theme=dark] .library-sort-control{box-shadow:inset 0 1px #ddecff0b}.library-results{display:grid;gap:18px;padding:0}.library-section-head.all-sets{align-items:center}.library-status-filters{display:flex;flex-wrap:wrap;gap:8px}.library-status-filters button{background:color-mix(in srgb,var(--library-panel-surface) 72%,transparent);border:1px solid transparent;border-radius:999px;box-shadow:none;color:var(--qc-text-secondary);font-size:.8rem;font-weight:var(--weight-medium);min-height:34px;padding:0 13px}.library-status-filters button:hover{background:var(--library-card-surface);color:var(--qc-text-primary)}.library-status-filters button.active{background:color-mix(in srgb,var(--qc-accent-teal) 9%,var(--library-card-surface));border-color:color-mix(in srgb,var(--qc-accent-teal) 38%,var(--qc-border-default));color:var(--qc-accent-teal-strong)}.library-local-toolbar{align-items:center;display:grid;gap:12px;grid-template-columns:auto minmax(260px,1fr) auto}.library-local-search{align-items:center;background:color-mix(in srgb,var(--library-card-surface) 82%,transparent);border:1px solid var(--library-hairline);border-radius:10px;color:var(--qc-text-secondary);display:grid;gap:9px;grid-template-columns:auto minmax(0,1fr) auto;min-height:42px;padding:0 11px 0 13px;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}.library-local-search:focus-within{background:var(--library-card-surface);border-color:color-mix(in srgb,var(--qc-accent-teal) 40%,var(--qc-border-default));box-shadow:none}.library-local-search input{background:transparent;border:0;color:var(--qc-text-primary);font:inherit;font-size:.86rem;min-width:0;outline:0;width:100%}.library-local-search input::-moz-placeholder{color:var(--qc-text-secondary)}.library-local-search input::placeholder{color:var(--qc-text-secondary)}.library-local-search button{background:transparent;border:0;box-shadow:none;color:var(--qc-text-secondary);display:inline-grid;height:28px;padding:0;place-items:center;width:28px}.library-local-search button:hover{color:var(--qc-text-primary)}:root[data-theme=dark] .library-status-filters button{background:#d5e3f00b}:root[data-theme=dark] .library-status-filters button.active{background:rgb(var(--qc-accent-teal-strong-rgb) / .1)}:root[data-theme=dark] .library-local-search{background:#182639b8}.library-card-grid{display:grid;gap:18px}.library-card-grid.grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}.library-card-grid.list{grid-template-columns:1fr}.library-quiz-card{--set-accent: var(--qc-accent-teal-strong);position:relative;display:flex;flex-direction:column;gap:0;padding:0;border:1px solid color-mix(in srgb,var(--set-accent) 12%,var(--qc-liquid-card-edge));border-radius:8px;background:var(--library-card-surface);box-shadow:0 1px 2px #223d4e0d,0 8px 18px -18px #223d4e4d;cursor:pointer;overflow:hidden;transition:transform .2s cubic-bezier(.16,1,.3,1),opacity .2s ease,border-color .2s ease,background .2s ease,box-shadow .2s cubic-bezier(.16,1,.3,1)}.library-quiz-card.is-weak{--set-accent: var(--study-weak)}.library-quiz-card.is-due{--set-accent: var(--qc-accent-amber)}.library-quiz-card.is-ready{--set-accent: var(--study-mastered)}.library-quiz-card.is-incomplete{--set-accent: var(--qc-accent-amber)}.library-quiz-card:hover{transform:translateY(-1px);border-color:color-mix(in srgb,var(--set-accent) 32%,var(--qc-border-default));background:color-mix(in srgb,var(--set-accent) 4%,var(--library-card-surface));box-shadow:0 2px 5px #223d4e12,0 12px 22px -18px #223d4e57}.library-quiz-card:has(.library-quiz-card__hit-area:focus-visible){border-color:color-mix(in srgb,var(--set-accent) 52%,var(--qc-border-default));box-shadow:0 0 0 3px color-mix(in srgb,var(--set-accent) 12%,transparent)}.library-quiz-card__hit-area{background:transparent;border:0;border-radius:inherit;cursor:pointer;inset:0;padding:0;position:absolute;z-index:3}.library-quiz-card__hit-area:focus-visible{outline:0}:root[data-theme=dark] .library-quiz-card{background:radial-gradient(120% 100% at 0% 0%,color-mix(in srgb,var(--set-accent) 11%,transparent),transparent 58%),linear-gradient(180deg,#d5e3f009,#1420301f);box-shadow:inset 0 1px #ddecff0f,inset 0 -1px #040b1338,0 10px 22px -18px #0309118a}.library-quiz-card:has(.card-menu-trigger[aria-expanded=true]){z-index:80}.library-quiz-card.is-dragging{opacity:.48;cursor:grabbing;transform:scale(.985)}.library-quiz-card.is-drag-target{border-color:color-mix(in srgb,var(--qc-accent-teal) 54%,var(--qc-border-default));background:color-mix(in srgb,var(--qc-accent-teal) 7%,var(--library-card-surface));box-shadow:none}.library-quiz-card__icon{display:inline-grid;place-items:center;width:48px;height:48px;border-radius:16px;flex-shrink:0}.library-quiz-card__icon.standard{color:#15564f;background:linear-gradient(135deg,#18a69b33,#d6f3f0bf)}.library-quiz-card__icon.generated{color:var(--qc-accent-blue);background:linear-gradient(135deg,rgb(var(--qc-accent-blue-rgb) / .2),rgb(var(--qc-accent-blue-rgb) / .07))}:root[data-theme=dark] .library-quiz-card__icon.standard{color:#7fd3c0;background:transparent}:root[data-theme=dark] .library-quiz-card__icon.generated{color:var(--qc-accent-blue);background:transparent}.library-quiz-card__identity-zone{background:transparent;min-height:78px;padding:20px 20px 16px}:root[data-theme=dark] .library-quiz-card__identity-zone{background:transparent}.library-quiz-card__summary{align-items:center;color:var(--qc-text-secondary);display:flex;flex-wrap:nowrap;gap:12px;font-size:.86rem;font-weight:var(--weight-regular);line-height:1.25;padding:0 20px 14px}.library-quiz-card__summary>span{align-items:center;color:var(--qc-text-secondary);display:inline-flex;gap:5px}.library-quiz-card__summary>span:not(:first-child){opacity:0;transform:translateY(2px);transition:opacity .16s cubic-bezier(.16,1,.3,1),transform .16s cubic-bezier(.16,1,.3,1)}.library-quiz-card:hover .library-quiz-card__summary>span:not(:first-child),.library-quiz-card:focus-within .library-quiz-card__summary>span:not(:first-child),.library-quiz-card:has(.card-menu-trigger[aria-expanded=true]) .library-quiz-card__summary>span:not(:first-child){opacity:1;transform:translateY(0)}.library-quiz-card__summary strong{color:currentColor;font-weight:var(--weight-semibold)}.library-quiz-card__summary .is-due{color:color-mix(in srgb,var(--qc-accent-amber) 82%,var(--qc-text-primary))}.library-quiz-card__summary .is-weak{color:color-mix(in srgb,var(--study-weak) 80%,var(--qc-text-primary))}.library-quiz-card__summary .is-ready{color:color-mix(in srgb,var(--study-mastered) 82%,var(--qc-text-primary))}.library-quiz-card__summary .is-progress{color:var(--study-mastered)}.library-quiz-card__setup-status{align-items:center;color:color-mix(in srgb,var(--qc-accent-amber) 82%,var(--qc-text-primary));display:inline-flex;font-size:.7rem;font-weight:var(--weight-semibold);gap:4px;justify-self:start;line-height:1.2}.library-quiz-card__setup-action{align-items:center;background:color-mix(in srgb,var(--qc-accent-amber) 9%,var(--library-card-surface));border:1px solid color-mix(in srgb,var(--qc-accent-amber) 30%,var(--qc-border-default));border-radius:999px;box-shadow:none;color:color-mix(in srgb,var(--qc-accent-amber) 76%,var(--qc-text-primary));display:inline-flex;font-size:.7rem;font-weight:var(--weight-semibold);gap:4px;margin-left:auto;min-height:28px;padding:0 9px;position:relative;white-space:nowrap;z-index:4}.library-quiz-card__setup-action:hover{background:color-mix(in srgb,var(--qc-accent-amber) 15%,var(--library-card-surface));color:var(--qc-text-primary)}.library-quiz-card__list-activity{display:none}.library-card-actions{display:inline-flex;align-items:center;gap:6px;position:relative;z-index:4}.library-quiz-card__pin{align-items:center;color:var(--qc-accent-amber);display:inline-flex;justify-content:center}.card-menu{position:relative;z-index:2}.card-menu:has(.card-menu-trigger[aria-expanded=true]){z-index:90}.card-menu summary,.card-menu-trigger{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;padding:0;border:1px solid color-mix(in srgb,var(--qc-border-strong) 76%,transparent);border-radius:10px;background:color-mix(in srgb,var(--library-card-surface) 88%,var(--library-panel-surface));box-shadow:0 2px color-mix(in srgb,var(--qc-text-primary) 9%,transparent);color:var(--qc-text-secondary);list-style:none;transition:transform .22s cubic-bezier(.16,1,.3,1),border-color .22s cubic-bezier(.16,1,.3,1),background .22s cubic-bezier(.16,1,.3,1),box-shadow .22s cubic-bezier(.16,1,.3,1),color .22s cubic-bezier(.16,1,.3,1)}.library-quiz-card .card-menu summary,.library-quiz-card .card-menu-trigger{background:transparent;border-color:transparent;border-radius:999px;box-shadow:none;color:var(--qc-text-secondary);height:32px;min-height:32px;width:32px}.library-quiz-card .card-menu summary:hover,.library-quiz-card .card-menu-trigger:hover,.library-quiz-card .card-menu-trigger[aria-expanded=true]{background:color-mix(in srgb,var(--qc-accent-teal) 8%,transparent);border-color:transparent;box-shadow:none;color:var(--qc-accent-teal-strong);transform:none}.library-quiz-card .card-menu summary svg,.library-quiz-card .card-menu-trigger svg{height:20px;width:20px}.card-menu summary:hover,.card-menu-trigger:hover{border-color:color-mix(in srgb,var(--qc-accent-teal) 28%,var(--qc-border-default));box-shadow:0 4px color-mix(in srgb,var(--qc-text-primary) 10%,transparent);color:var(--qc-accent-teal-strong)}.card-menu[open] summary,.card-menu-trigger[aria-expanded=true]{background:color-mix(in srgb,var(--qc-accent-teal) 9%,transparent);border-color:transparent;box-shadow:none;color:var(--qc-accent-teal-strong);transform:none}.card-menu summary::-webkit-details-marker{display:none}.card-menu-panel{--qc-menu-gap: 2px;--qc-menu-min-width: 238px;--qc-menu-padding: 6px}.library-workspace{background:transparent;width:min(1660px,calc(100% - 42px));margin:0 auto;padding:18px 0 48px;display:grid;grid-template-columns:minmax(0,1fr);align-items:start}.library-main{display:grid;grid-column:1;gap:20px;min-width:0}.library-command+.library-results.is-study-home{margin-top:24px}.study-home-create{display:grid;gap:14px;margin-top:28px;padding-bottom:10px}.study-home-create__head{display:grid;gap:3px}.study-home-create__head p{color:var(--qc-accent-blue);font-size:.76rem;font-weight:var(--weight-semibold);letter-spacing:.04em;margin:0}.study-home-create__head h2{color:var(--qc-text-primary);font-family:var(--font-display);font-size:1.56rem;font-weight:var(--weight-semibold);letter-spacing:0;line-height:1.1;margin:0}.study-home-create__grid{display:grid;gap:14px;grid-template-columns:minmax(0,1.35fr) minmax(340px,.9fr)}.study-home-create__card{background:#eaf4f8;border:1px solid color-mix(in srgb,var(--qc-accent-blue) 18%,var(--qc-border-default));border-radius:16px;box-shadow:0 16px 34px -28px #2042607a;min-height:286px;overflow:hidden;position:relative}.study-home-create__card:after{background:linear-gradient(90deg,#eff8fafc,#eff8faf5 38%,#eff8faad 56%,#eff8fa00 78%);content:"";inset:0;pointer-events:none;position:absolute;z-index:1}.study-home-create__card.is-manual:after{background:linear-gradient(90deg,#eff4fdfc,#eff4fdf5 42%,#eff4fda3 62%,#eff4fd00 84%)}.study-home-create__card>img{height:100%;inset:0;-o-object-fit:cover;object-fit:cover;-o-object-position:center;object-position:center;position:absolute;transition:transform .36s cubic-bezier(.16,1,.3,1);width:100%}.study-home-create__card:hover>img{transform:scale(1.018)}.study-home-create__copy{align-content:center;display:grid;gap:10px;min-height:286px;padding:30px;position:relative;width:min(54%,440px);z-index:2}.study-home-create__card.is-manual 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srgb,var(--study-weak) 80%,var(--qc-text-primary))}.library-quiz-card__progress-detail .is-ready{color:color-mix(in srgb,var(--study-mastered) 82%,var(--qc-text-primary))}.library-main .library-quiz-card.list .library-quiz-card__list-activity{align-items:center;color:var(--qc-text-secondary);display:flex;font-size:.8rem;gap:7px;grid-area:activity;padding:8px 16px}.library-main .library-quiz-card{gap:0;padding:0;border-radius:8px}.library-main .library-quiz-card:hover{transform:translateY(-1px)}.library-main .library-quiz-card__identity-zone{min-height:60px;padding:12px 13px 3px}.library-main .library-quiz-card__summary{font-size:.78rem;gap:10px;padding:1px 13px 9px}.library-quiz-card__main{display:grid;grid-template-columns:38px minmax(0,1fr) auto;gap:10px;align-items:start}.library-quiz-card__copy{display:grid;gap:5px;min-width:0}.library-main .library-quiz-card__icon{background:transparent;border:0;border-radius:0;box-shadow:none;color:var(--qc-accent-teal-strong);display:inline-grid;height:38px;margin-top:0;overflow:visible;width:38px}.library-main .library-quiz-card__icon.asset-icon-frame{background:transparent;box-shadow:none}.library-main .library-quiz-card__icon.generated.asset-icon-frame{background:transparent;border-color:transparent}.library-main .library-quiz-card__icon>svg,.library-main .library-quiz-card__icon>.library-card-source-icon{height:38px;width:38px}.library-main .library-quiz-card__main h3{display:-webkit-box;margin:2px 0 0;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2;font-size:.98rem;font-weight:var(--weight-semibold);line-height:1.2;letter-spacing:0}.library-load-more{align-items:center;display:flex;gap:12px;justify-content:center;padding:8px 0 2px}.library-load-more button{background:var(--library-card-surface);border:1px solid var(--library-hairline);border-radius:9px;color:var(--qc-text-primary);min-height:38px;padding:0 14px}.library-load-more button:hover{border-color:color-mix(in srgb,var(--qc-accent-teal) 34%,var(--qc-border-default));color:var(--qc-accent-teal-strong)}.library-load-more span{color:var(--qc-text-secondary);font-size:.78rem}.collection-modal{display:grid;gap:14px;width:min(92vw,720px);max-height:calc(100vh - 48px);padding:22px}.collection-create-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;padding:10px;border:1px solid color-mix(in srgb,var(--qc-border-default) 80%,transparent);border-radius:12px;background:color-mix(in srgb,var(--library-panel-surface) 78%,transparent)}.collection-create-row input{min-height:42px;border-radius:10px}.collection-list-modal{display:grid;gap:8px;min-height:0;overflow:auto}.collection-list-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px;border:1px solid color-mix(in srgb,var(--qc-border-default) 82%,transparent);border-radius:12px;background:var(--library-card-surface)}.collection-list-item strong{display:block;font-weight:var(--weight-semibold)}.collection-list-item span{color:var(--qc-text-secondary);font-size:.9rem}.collection-list-actions{display:flex;gap:8px}.collection-list-actions button{min-height:36px;padding-inline:12px}.study-launch-overlay{align-items:center;background:#08121e61;display:flex;inset:0;justify-content:center;overflow:hidden;overscroll-behavior:none;padding:16px;position:fixed;z-index:120;will-change:opacity}.study-launch-modal{background:radial-gradient(circle at 0% 0%,rgb(var(--qc-accent-teal-rgb) / .12),transparent 34%),radial-gradient(circle at 96% 8%,rgb(var(--qc-accent-blue-rgb) / .11),transparent 32%),linear-gradient(145deg,rgb(var(--qc-panel-rgb) / .98),rgb(var(--qc-surface-panel-rgb) / .95));border:1px solid var(--study-rail-glass-edge);border-radius:22px;box-shadow:0 28px 76px #040c1857,inset 0 1px 0 var(--study-rail-glass-highlight);color:var(--qc-text-primary);contain:layout paint;display:grid;grid-template-columns:minmax(0,1fr) 380px;height:min(780px,calc(100vh - 32px));max-height:calc(100vh - 32px);overflow:hidden;isolation:isolate;width:min(1180px,calc(100vw - 64px));transform-origin:center center;will-change:opacity,transform}.study-launch-main{background:radial-gradient(circle at 0% 0%,rgb(var(--qc-accent-teal-rgb) / .055),transparent 32%),linear-gradient(180deg,rgb(var(--qc-panel-rgb) / .4),rgb(var(--qc-surface-panel-rgb) / .18));display:grid;grid-template-rows:auto auto minmax(0,1fr);min-height:0;overflow:hidden}.study-launch-hero{align-items:start;border-bottom:1px solid color-mix(in srgb,var(--qc-border-default) 68%,transparent);display:grid;gap:32px;grid-template-columns:minmax(0,1fr) auto;padding:34px 40px 30px}.study-launch-title-copy{align-content:start;display:grid;gap:14px}.study-launch-kicker{align-items:center;display:flex;flex-wrap:wrap;font-family:var(--font-ui);font-size:.83rem;font-weight:var(--weight-semibold);gap:8px;letter-spacing:0;text-transform:none}.study-launch-kicker span{align-items:center;display:inline-flex;border:1px solid color-mix(in srgb,currentColor 18%,transparent);padding:5px 10px;border-radius:999px;line-height:1}.study-launch-kicker span:first-child{background:color-mix(in srgb,var(--qc-accent-blue) 9%,var(--qc-surface-subtle));color:var(--qc-accent-blue)}.study-launch-kicker span:nth-child(2){background:color-mix(in srgb,var(--qc-accent-teal) 9%,var(--qc-surface-subtle));color:var(--qc-accent-teal)}.study-launch-hero h2{color:var(--qc-text-primary);font-family:var(--font-display);font-size:2.24rem;font-weight:var(--weight-bold);letter-spacing:0;line-height:1.06;margin:0;max-width:21ch;text-wrap:balance}.study-launch-hero-actions{align-items:center;display:inline-flex;gap:10px}.study-launch-icon-action{align-items:center;background:linear-gradient(180deg,rgb(var(--qc-panel-rgb) / .74),rgb(var(--qc-surface-panel-rgb) / .46));border:1px solid color-mix(in srgb,var(--study-rail-glass-edge) 86%,transparent);border-radius:999px;box-shadow:inset 0 1px rgb(var(--qc-panel-rgb) / .52);color:var(--qc-text-secondary);display:inline-flex;height:42px;justify-content:center;padding:0;width:42px;transition:background-color .2s cubic-bezier(.4,0,.2,1),border-color .2s cubic-bezier(.4,0,.2,1),box-shadow .2s cubic-bezier(.4,0,.2,1),color .2s cubic-bezier(.4,0,.2,1),transform .2s cubic-bezier(.4,0,.2,1)}.study-launch-icon-action:focus-visible{outline:2px solid color-mix(in srgb,var(--qc-accent-teal) 56%,transparent);outline-offset:3px}.study-launch-icon-action:hover{background:var(--qc-accent-teal);border-color:var(--qc-accent-teal);color:#fff;transform:translateY(-2px);box-shadow:0 4px 12px #17847c33}.study-launch-icon-action.study-launch-close:hover{background:var(--qc-semantic-danger);border-color:var(--qc-semantic-danger);box-shadow:0 4px 12px #c4473533}.study-launch-description{align-items:start;background:linear-gradient(90deg,rgb(var(--qc-accent-blue-rgb) / .055),transparent 62%),rgb(var(--qc-surface-panel-rgb) / .26);border-bottom:1px solid color-mix(in srgb,var(--qc-border-default) 66%,transparent);display:grid;gap:18px;grid-template-columns:auto minmax(0,1fr);padding:17px 40px 18px}.study-launch-description__label{background:color-mix(in srgb,var(--qc-accent-teal) 8%,var(--qc-surface-subtle));border:1px solid color-mix(in srgb,var(--qc-accent-teal) 17%,var(--qc-border-default));border-radius:999px;min-height:30px;padding:5px 10px;display:flex;align-items:center;gap:8px;color:var(--qc-accent-teal);font-family:var(--font-display);font-size:.84rem;font-weight:var(--weight-semibold);letter-spacing:0;text-transform:none}.study-launch-description p{color:var(--qc-text-secondary);font-size:.94rem;line-height:1.55;margin:0;max-width:65ch;align-self:center}.study-launch-workbench{align-content:start;display:grid;gap:0;padding:28px 40px 36px;overflow-y:auto;overscroll-behavior:contain}.study-launch-section{align-content:start;display:grid;gap:18px}.study-launch-mode-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;width:100%;border:0;border-radius:0;overflow:visible;background:transparent}.study-launch-mode{align-items:stretch;border:1px solid color-mix(in srgb,var(--qc-border-default) 74%,transparent);border-radius:16px;cursor:pointer;display:flex;flex-direction:column;justify-content:space-between;min-height:172px;padding:18px 18px 16px;position:relative;text-align:left;transition:background-color var(--motion-quick) var(--ease-out-expo),border-color var(--motion-quick) var(--ease-out-expo),box-shadow var(--motion-quick) var(--ease-out-expo),color var(--motion-quick) var(--ease-out-expo),transform var(--motion-instant) var(--ease-out-expo);overflow:hidden;color:var(--qc-text-primary);font-family:inherit;background:radial-gradient(circle at 12% 0%,color-mix(in srgb,var(--mode-color) 7%,transparent),transparent 36%),linear-gradient(180deg,rgb(var(--qc-panel-rgb) / .88),rgb(var(--qc-surface-panel-rgb) / .68));box-shadow:0 8px 22px #0d19270b,inset 0 1px rgb(var(--qc-panel-rgb) / .6);transform:none;--mode-shadow-active: color-mix(in srgb, var(--mode-color) 35%, transparent)}.study-launch-mode__selection{border:1px solid color-mix(in srgb,var(--mode-color) 52%,var(--qc-border-strong));border-radius:inherit;box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--mode-color) 10%,transparent),inset 0 1px rgb(var(--qc-panel-rgb) / .48);inset:0;pointer-events:none;position:absolute;z-index:0}.study-launch-mode>*:not(.study-launch-mode__selection){position:relative;z-index:1}.study-launch-mode:hover,.study-launch-mode.is-selected{transform:none}.study-launch-mode:focus-visible{outline:2px solid color-mix(in srgb,var(--mode-color) 62%,transparent);outline-offset:3px}.study-launch-mode:active{transform:scale(.992)}.study-launch-mode.is-mint{--mode-color: var(--qc-accent-teal)}.study-launch-mode.is-gold{--mode-color: var(--qc-accent-amber)}.study-launch-mode.is-blue{--mode-color: var(--qc-accent-blue)}.study-launch-mode.is-rose{--mode-color: var(--qc-semantic-danger)}.study-launch-mode.is-recommended{background:radial-gradient(circle at 12% 0%,color-mix(in srgb,var(--mode-color) 10%,transparent),transparent 38%),linear-gradient(180deg,color-mix(in srgb,var(--mode-color) 3%,rgb(var(--qc-panel-rgb) / .84)),rgb(var(--qc-surface-panel-rgb) / .66))}.study-launch-mode:hover{background:radial-gradient(circle at 12% 0%,color-mix(in srgb,var(--mode-color) 10%,transparent),transparent 40%),linear-gradient(180deg,rgb(var(--qc-panel-rgb) / .94),color-mix(in srgb,var(--mode-color) 3%,rgb(var(--qc-surface-panel-rgb) / .7)));border-color:color-mix(in srgb,var(--mode-color) 34%,var(--qc-border-default));box-shadow:0 10px 24px #0d192711,inset 0 1px rgb(var(--qc-panel-rgb) / .66)}.study-launch-mode.is-recommended:hover{background:radial-gradient(circle at 12% 0%,color-mix(in srgb,var(--mode-color) 12%,transparent),transparent 40%),linear-gradient(180deg,color-mix(in srgb,var(--mode-color) 5%,rgb(var(--qc-panel-rgb) / .9)),rgb(var(--qc-surface-panel-rgb) / .68))}.study-launch-mode.is-selected{background:radial-gradient(circle at 12% 0%,color-mix(in srgb,var(--mode-color) 13%,transparent),transparent 42%),linear-gradient(180deg,color-mix(in srgb,var(--mode-color) 6%,rgb(var(--qc-panel-rgb) / .9)),rgb(var(--qc-surface-panel-rgb) / .68));box-shadow:0 10px 24px color-mix(in srgb,var(--mode-color) 8%,transparent),inset 0 1px rgb(var(--qc-panel-rgb) / .68)}.study-launch-mode__header{display:flex;align-items:center;gap:12px;width:100%}.study-launch-mode__header-text{display:flex;flex-direction:column;align-items:flex-start;gap:2px;min-width:0}.study-launch-mode__icon{align-items:center;display:inline-flex;height:42px;width:42px;justify-content:center;background:transparent;border:0;box-shadow:none;color:var(--mode-color);transition:opacity var(--motion-quick) var(--ease-out-expo);flex-shrink:0;opacity:.9}.study-launch-mode__icon-img{width:100%;height:100%;-o-object-fit:contain;object-fit:contain;display:block}.study-launch-mode:hover .study-launch-mode__icon,.study-launch-mode.is-selected .study-launch-mode__icon{opacity:1}.study-launch-mode__diagram-container{width:100%;display:flex;align-items:center;justify-content:center;margin:-4px 0;flex:1;min-height:56px}.study-launch-mode .mode-graphic{width:100%;max-width:220px;height:56px;color:var(--mode-color);opacity:.58;filter:none;transition:opacity var(--motion-standard) var(--ease-out-expo),transform var(--motion-standard) var(--ease-out-expo)}.study-launch-mode:hover .mode-graphic,.study-launch-mode.is-selected .mode-graphic{opacity:.86;transform:translateY(-1px)}.study-launch-mode strong{font-family:var(--font-display);font-size:1.26rem;font-weight:var(--weight-semibold);color:var(--qc-text-primary);letter-spacing:0}.study-launch-mode__recommend-sub{font-family:var(--font-ui);font-size:.8rem;font-weight:var(--weight-semibold);color:var(--mode-color);letter-spacing:0;text-transform:none;margin-top:2px}.study-launch-mode small{color:var(--qc-text-secondary);font-size:.88rem;font-weight:var(--weight-medium);line-height:1.4;transition:color var(--motion-quick) var(--ease-out-expo)}.study-launch-mode:hover small,.study-launch-mode.is-selected small{color:var(--qc-text-primary)}.study-launch-mode__footer{display:flex;align-items:center;justify-content:space-between;width:100%;gap:12px;margin-top:4px}.study-launch-mode__footer small{flex:1;text-align:left}.study-launch-mode__arrow{position:relative;height:24px;width:24px;border-radius:50%;border:1.5px solid var(--qc-border-strong);display:flex;align-items:center;justify-content:center;background:transparent;color:transparent;transition:background-color var(--motion-quick) var(--ease-out-expo),border-color var(--motion-quick) var(--ease-out-expo),color var(--motion-quick) var(--ease-out-expo),transform var(--motion-quick) var(--ease-out-expo);flex-shrink:0}.study-launch-mode:hover .study-launch-mode__arrow{border-color:var(--mode-color);background:color-mix(in srgb,var(--mode-color) 8%,transparent);color:var(--mode-color);transform:translate(1px)}.study-launch-mode.is-selected .study-launch-mode__arrow{border-color:var(--mode-color);background:var(--mode-color);color:#fff;box-shadow:0 3px 9px var(--mode-shadow-active);transform:none}.study-launch-error{color:var(--qc-semantic-danger);font-weight:var(--weight-semibold);margin:0}.study-launch-command{background:radial-gradient(circle at 100% 0%,rgb(var(--qc-accent-teal-rgb) / .12),transparent 38%),linear-gradient(180deg,rgb(var(--qc-panel-rgb) / .52),rgb(var(--qc-surface-panel-rgb) / .34));border-left:1px solid color-mix(in srgb,var(--qc-border-default) 68%,transparent);box-shadow:inset 1px 0 rgb(var(--qc-panel-rgb) / .36);color:var(--qc-text-primary);display:grid;grid-template-rows:minmax(0,1fr) auto;min-height:0;min-width:0;overflow:hidden;padding:32px 24px;position:relative}.study-launch-command>.study-launch-command-panel,.study-launch-command>.study-launch-topic-picker-panel{grid-area:1 / 1}.study-launch-command>.study-launch-action-stack{grid-area:2 / 1}.study-launch-command-panel{backface-visibility:hidden;display:flex;flex-direction:column;gap:24px;height:100%;will-change:transform,opacity}.study-launch-readiness{border-bottom:1px solid color-mix(in srgb,var(--qc-border-default) 64%,transparent);display:grid;gap:14px;padding-bottom:24px}.study-launch-readiness-label{color:var(--qc-accent-teal);display:grid;font-family:var(--font-display);font-size:.86rem;font-weight:var(--weight-semibold);letter-spacing:0;line-height:1;text-transform:none}.study-launch-readiness-label strong{color:var(--qc-accent-teal);font-family:var(--font-display);font-size:3.2rem;font-weight:var(--weight-bold);letter-spacing:0;line-height:.94;margin-top:8px;text-transform:none}.study-launch-readiness-track{background:color-mix(in srgb,var(--qc-border-default) 46%,transparent);border:0;border-radius:999px;height:9px;overflow:hidden}.study-launch-readiness-track i{background:var(--qc-accent-teal);border-radius:inherit;display:block;height:100%;transform-origin:left center;transition:width var(--motion-standard) var(--ease-out-expo)}.study-launch-stat-stack{border-bottom:1px solid color-mix(in srgb,var(--qc-border-default) 64%,transparent);display:grid;gap:18px;padding-bottom:24px}.study-launch-question-total{align-items:center;background:transparent;border-bottom:1px solid color-mix(in srgb,var(--qc-border-default) 64%,transparent);color:var(--qc-text-primary);display:grid;gap:10px;grid-template-columns:auto minmax(0,1fr) auto;min-height:30px;min-width:0;padding:0 0 13px}.study-launch-stat-bar{--study-launch-stat-fill: var(--qc-accent-teal);color:var(--qc-text-secondary);display:grid;gap:10px;min-width:0}.study-launch-stat-bar.is-due{--study-launch-stat-fill: var(--qc-accent-amber);color:var(--qc-accent-amber)}.study-launch-stat-bar.is-weak{--study-launch-stat-fill: var(--qc-semantic-danger);color:var(--qc-semantic-danger)}.study-launch-stat-bar.is-mastered{--study-launch-stat-fill: var(--qc-semantic-success);color:var(--qc-semantic-success)}.study-launch-stat-bar__meta{align-items:center;display:grid;gap:10px;grid-template-columns:minmax(0,1fr) auto;min-width:0}.study-launch-stat-bar__meta span{align-items:center;display:inline-flex;gap:9px;min-width:0}.study-launch-stat-stack span{font-size:.9rem;font-weight:var(--weight-semibold);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.study-launch-stat-stack strong{color:var(--qc-text-primary);font-size:1.12rem;font-weight:var(--weight-semibold)}.study-launch-stat-stack .study-launch-count{align-items:baseline;display:inline-flex;gap:2px}.study-launch-stat-stack .study-launch-count span{font-size:inherit;font-weight:inherit;line-height:inherit}.study-launch-count__active{color:var(--qc-semantic-danger)}.study-launch-count__slash{color:color-mix(in srgb,var(--qc-text-secondary) 58%,var(--qc-accent-teal));font-weight:var(--weight-semibold);padding:0 1px}.study-launch-stat-track{background:color-mix(in srgb,var(--qc-border-default) 46%,transparent);border-radius:999px;height:12px;overflow:hidden}.study-launch-stat-track i{background:var(--study-launch-stat-fill);border-radius:inherit;display:block;height:100%;min-width:8px;transform-origin:left center;transition:width var(--motion-standard) var(--ease-out-expo)}.study-launch-stat-bar.is-empty .study-launch-stat-track i{min-width:0}.study-launch-topic-filter{margin-top:0;position:relative}.study-launch-topic-filter .study-command-topic-bubbles{display:flex;background:rgb(var(--qc-panel-rgb) / .42);border:1px solid color-mix(in srgb,var(--qc-border-default) 74%,transparent);border-radius:var(--qc-radius-control);padding:4px;gap:4px;width:100%}.study-launch-topic-filter .study-command-topic-bubble{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;padding:6px 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-1;grid-row:1}.library-main .library-quiz-card.list{grid-template-columns:1fr;grid-template-areas:"identity" "summary" "activity"}.library-main .library-quiz-card.list .library-quiz-card__list-progress{border-left:0;padding-top:0}.library-list-head{display:none}}@media(max-width:560px){.library-command,.library-results{gap:16px}.library-action-tile,.library-quiz-card{padding:18px}.library-section-head__tools{align-items:stretch;flex-wrap:wrap}.library-sort-control{flex:1 1 180px}.library-sort-control select{flex:1}.library-status-filters{flex-wrap:nowrap;margin-inline:-2px;overflow-x:auto;padding:0 2px 5px}.library-status-filters button{flex:0 0 auto}.library-local-toolbar{gap:9px}.library-date-groups{gap:28px}.library-main .library-results.is-study-home .library-card-grid.grid{grid-template-columns:1fr}}.generation-workspace-rebuild{--generation-surface-page: #edf2f6;--generation-surface-header: #f2f5f8;--generation-surface-subtle: #f8fafc;--generation-surface-card: #ffffff;--generation-source-header-bg: radial-gradient(125% 150% at 4% -18%, rgba(255, 255, 255, .96) 0%, rgba(255, 255, 255, .28) 35%, transparent 58%), radial-gradient(105% 150% at 92% 4%, rgba(169, 218, 210, .44) 0%, rgba(202, 229, 227, .16) 42%, transparent 68%), linear-gradient(128deg, rgba(225, 241, 239, .82), rgba(238, 246, 248, .72) 58%, rgba(247, 250, 252, .84));--generation-border-default: var(--qc-border-default);--generation-border-hover: var(--qc-border-strong);--generation-accent-teal: #0c6760;--generation-accent-blue: #2677d5;--generation-text-primary: #111c31;--generation-text-secondary: #42516a;--generation-text-muted: #55647a;--generation-checkbox-shadow-selected: 0 1px 2px rgba(15, 23, 42, .1);--generation-count-key-shadow: var(--qc-liquid-control-shadow);--generation-count-key-pressed-shadow: var(--qc-liquid-control-pressed-shadow);--generation-format-selected-bg: color-mix(in srgb, var(--generation-toggle-container-bg) 82%, var(--generation-accent-teal) 18%);--generation-setup-dock-bg: radial-gradient(120% 150% at 8% -32%, rgba(255, 255, 255, .98) 0%, rgba(255, 255, 255, .44) 42%, transparent 68%), linear-gradient(132deg, rgba(247, 251, 252, .99), rgba(232, 242, 245, .99) 55%, rgba(243, 248, 250, .99));--generation-accent-blue-surface: #f0f6ff;--generation-badge-bg: #e7f5f0;--generation-badge-text: #0c6760;--generation-toggle-container-bg: #eef2f6;--generation-submit-bg: linear-gradient(to bottom, #0c7168, #075d57);--generation-submit-bg-hover: linear-gradient(to bottom, #0d7c73, #086862);--generation-submit-border: #0c6760;--generation-submit-shadow: inset 0 1px 0 rgba(255, 255, 255, .2), 0 1px 2px rgba(15, 23, 42, .08);--generation-submit-shadow-hover: inset 0 1px 0 rgba(255, 255, 255, .24), 0 6px 16px rgba(12, 103, 96, .14);--generation-disabled-action-bg: #dbe6e8;--generation-disabled-action-border: #c2d1d5;--generation-disabled-action-text: #536a72;--generation-dropzone-bg: radial-gradient(100% 120% at 22% 0%, rgba(255, 255, 255, .58) 0%, rgba(255, 255, 255, .2) 36%, transparent 66%), radial-gradient(92% 110% at 78% 8%, rgba(142, 176, 207, .22) 0%, rgba(130, 163, 193, .08) 48%, transparent 72%), linear-gradient(145deg, rgba(225, 235, 243, .92), rgba(210, 224, 235, .82) 50%, rgba(233, 240, 246, .92));--generation-dropzone-border: rgba(12, 103, 96, .58);--generation-dropzone-border-hover: rgba(12, 103, 96, .82);--generation-dropzone-shadow: inset 0 1px 0 rgba(255, 255, 255, .68), 0 1px 2px rgba(24, 43, 62, .055);--generation-dropzone-shadow-dragging: inset 0 1px 0 rgba(255, 255, 255, .76), 0 10px 26px rgba(12, 103, 96, .1);--generation-dropzone-sheen: linear-gradient(118deg, transparent 0 26%, rgba(255, 255, 255, .28) 38%, transparent 58%), linear-gradient(180deg, rgba(255, 255, 255, .16), transparent 50%);background:var(--generation-surface-page);transition:background-color .25s ease,color .25s ease}:root[data-theme=dark] .generation-workspace-rebuild{--generation-surface-page: var(--qc-surface-page);--generation-surface-header: rgba(27, 42, 60, .72);--generation-surface-subtle: rgba(17, 28, 44, .78);--generation-surface-card: rgba(25, 39, 58, .86);--generation-source-header-bg: radial-gradient(135% 150% at 5% -20%, rgba(105, 179, 170, .14) 0%, rgba(77, 154, 145, .045) 40%, transparent 64%), radial-gradient(110% 145% at 92% 4%, rgba(126, 156, 178, .13) 0%, rgba(88, 112, 138, .045) 44%, transparent 70%), linear-gradient(128deg, rgba(25, 43, 54, .72), rgba(23, 35, 51, .66) 58%, rgba(30, 44, 62, .72));--generation-border-default: var(--qc-border-default);--generation-border-hover: var(--qc-border-strong);--generation-accent-teal: var(--qc-accent-teal);--generation-accent-blue: var(--qc-accent-blue);--generation-text-primary: var(--qc-text-primary);--generation-text-secondary: var(--qc-text-secondary);--generation-text-muted: #8798aa;--generation-checkbox-shadow-selected: 0 1px 2px rgba(3, 9, 17, .28);--generation-count-key-shadow: var(--qc-liquid-control-shadow);--generation-count-key-pressed-shadow: var(--qc-liquid-control-pressed-shadow);--generation-format-selected-bg: rgb(var(--qc-accent-teal-rgb) / .075);--generation-setup-dock-bg: radial-gradient(120% 150% at 8% -32%, rgba(112, 164, 177, .12) 0%, rgba(79, 124, 148, .035) 42%, transparent 68%), linear-gradient(132deg, rgba(25, 41, 59, .99), rgba(18, 32, 48, .99) 55%, rgba(28, 44, 62, .99));--generation-accent-blue-surface: rgba(82, 114, 145, .12);--generation-badge-bg: rgb(var(--qc-accent-teal-strong-rgb) / .12);--generation-badge-text: var(--qc-accent-teal-strong);--generation-toggle-container-bg: rgba(18, 31, 47, .78);--generation-submit-bg: var(--qc-primary-action-bg);--generation-submit-bg-hover: var(--qc-primary-action-bg-hover);--generation-submit-border: rgb(var(--qc-accent-teal-strong-rgb) / .26);--generation-submit-shadow: inset 0 1px 0 rgba(239, 246, 255, .075), 0 1px 2px rgba(3, 9, 17, .24);--generation-submit-shadow-hover: inset 0 1px 0 rgba(239, 246, 255, .095), 0 8px 20px rgba(3, 9, 17, .24);--generation-disabled-action-bg: rgba(28, 42, 59, .72);--generation-disabled-action-border: rgba(177, 194, 213, .12);--generation-disabled-action-text: #7f91a3;--generation-dropzone-bg: radial-gradient(100% 120% at 22% 0%, rgba(105, 179, 170, .09) 0%, rgba(77, 154, 145, .035) 40%, transparent 70%), radial-gradient(92% 110% at 78% 8%, rgba(148, 175, 207, .11) 0%, rgba(96, 124, 156, .04) 48%, transparent 72%), linear-gradient(145deg, rgba(17, 27, 41, .94), rgba(12, 22, 35, .91) 52%, rgba(22, 36, 53, .9));--generation-dropzone-border: rgb(var(--qc-accent-teal-strong-rgb) / .46);--generation-dropzone-border-hover: rgb(var(--qc-accent-teal-strong-rgb) / .72);--generation-dropzone-shadow: inset 0 1px 0 rgba(237, 243, 247, .045), 0 1px 2px rgba(3, 9, 17, .22);--generation-dropzone-shadow-dragging: inset 0 1px 0 rgba(237, 243, 247, .065), 0 16px 34px rgba(3, 9, 17, .26);--generation-dropzone-sheen: linear-gradient(118deg, transparent 0 27%, rgba(213, 227, 240, .05) 39%, transparent 58%), linear-gradient(180deg, rgba(213, 227, 240, .024), transparent 50%);background:var(--generation-surface-page);color:var(--generation-text-secondary)}.generation-source-content{display:flex;min-height:0;flex-direction:column;gap:18px;padding:0}.generation-dropzone{position:relative;isolation:isolate;display:flex;min-height:348px;flex:0 0 auto;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;overflow:hidden;border:2px dashed var(--generation-dropzone-border);border-radius:14px;background:var(--generation-dropzone-bg);box-shadow:var(--generation-dropzone-shadow);color:var(--generation-text-secondary);padding:38px 32px 34px;text-align:center;transition:border-color var(--motion-standard) var(--ease-out-expo),box-shadow var(--motion-standard) var(--ease-out-expo),transform var(--motion-standard) var(--ease-out-expo),background-color var(--motion-standard) var(--ease-out-expo)}.generation-dropzone:before{content:"";position:absolute;inset:0;z-index:0;background:var(--generation-dropzone-sheen);opacity:.54;pointer-events:none}.generation-dropzone>*{position:relative;z-index:1}.generation-dropzone:hover,.generation-dropzone.is-dragging{border-color:var(--generation-dropzone-border-hover);box-shadow:var(--generation-dropzone-shadow-dragging);transform:translateY(-1px)}.generation-dropzone:focus-within{border-color:var(--generation-dropzone-border-hover);box-shadow:var(--generation-dropzone-shadow-dragging),0 0 0 3px color-mix(in srgb,var(--generation-accent-teal) 14%,transparent)}.generation-control-heading{align-items:center;display:flex;gap:7px;margin:0;color:var(--generation-text-secondary);font-family:var(--font-ui);font-size:14px;font-weight:var(--weight-bold);letter-spacing:.01em;line-height:1.2}.generation-control-heading span{color:var(--generation-text-muted);font-family:var(--font-ui);font-size:13px;font-weight:var(--weight-regular);letter-spacing:0}.generation-control-copy{margin:6px 0 0;color:var(--generation-text-muted);font-size:13px;font-weight:var(--weight-regular);line-height:1.38}.generation-support-title{display:block;color:var(--generation-text-primary);font-size:13.5px;font-weight:var(--weight-bold);line-height:1.18;transition:color var(--motion-quick) var(--ease-out-expo)}.generation-support-copy{display:block;max-width:320px;margin-top:3px;color:var(--generation-text-muted);font-size:12.5px;font-weight:var(--weight-regular);line-height:1.24;transition:color var(--motion-quick) var(--ease-out-expo)}.generation-dropzone__icon{display:grid;width:58px;height:52px;place-items:center;color:var(--generation-accent-teal);transition:transform var(--motion-standard) var(--ease-out-expo),color var(--motion-standard) var(--ease-out-expo)}.generation-dropzone:hover .generation-dropzone__icon,.generation-dropzone.is-dragging .generation-dropzone__icon{transform:translateY(-2px);color:color-mix(in srgb,var(--generation-accent-teal) 84%,var(--generation-text-primary))}.generation-dropzone__title{margin-top:10px;color:var(--generation-text-primary);font-family:var(--font-display);font-size:18px;font-weight:var(--weight-semibold);line-height:1.22}.generation-dropzone__hint{margin-top:9px;color:var(--generation-text-muted);font-size:13.5px;font-weight:var(--weight-regular);letter-spacing:0;line-height:1.35;text-transform:none}.generation-dropzone__browse-action{display:inline-flex;align-items:center;justify-content:center;min-height:44px;margin-top:10px;border:1px solid color-mix(in srgb,var(--generation-accent-teal) 32%,var(--generation-border-default));border-radius:7px;background:color-mix(in srgb,var(--generation-surface-card) 90%,var(--generation-accent-teal) 10%);box-shadow:var(--generation-count-key-shadow);color:var(--generation-accent-teal);font-size:13.5px;font-weight:var(--weight-semibold);padding:0 20px;text-transform:none;transition:border-color var(--motion-quick) var(--ease-out-expo),background-color var(--motion-quick) var(--ease-out-expo),transform var(--motion-quick) var(--ease-out-expo)}.generation-dropzone:hover .generation-dropzone__browse-action{border-color:var(--generation-dropzone-border-hover);background:var(--generation-surface-card);transform:translateY(-1px)}.generation-file-support{display:inline-flex;align-items:center;justify-content:center;gap:7px;margin-top:18px;color:var(--generation-text-muted);font-size:12.5px;font-weight:var(--weight-medium);line-height:1.3;text-transform:none}.generation-file-input{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}.generation-prompt-input{display:grid;gap:14px}.generation-prompt-textarea,.generation-guidance-textarea{width:100%;resize:none;border:1px solid var(--generation-border-default);border-radius:9px;background:var(--generation-surface-card);color:var(--generation-text-primary);font-size:14.5px;font-weight:var(--weight-regular);line-height:1.55;outline:none;transition:border-color var(--motion-quick) var(--ease-out-expo),box-shadow var(--motion-quick) var(--ease-out-expo)}.generation-prompt-textarea{min-height:348px;padding:22px}.generation-guidance-textarea{min-height:92px;margin-top:10px;padding:10px 12px;font-size:13px}.generation-prompt-textarea:focus,.generation-guidance-textarea:focus{border-color:var(--generation-accent-teal);box-shadow:none}.generation-prompt-textarea::-moz-placeholder,.generation-guidance-textarea::-moz-placeholder{color:var(--generation-text-muted)}.generation-prompt-textarea::placeholder,.generation-guidance-textarea::placeholder{color:var(--generation-text-muted)}.generation-prompt-starters{display:grid;gap:8px;padding:2px 2px 0}.generation-prompt-starters>span{color:var(--generation-text-secondary);font-size:13px;font-weight:var(--weight-semibold)}.generation-prompt-starters>div{display:flex;flex-wrap:wrap;gap:7px}.generation-prompt-starters button{min-height:40px;border:1px solid var(--generation-border-default);border-radius:999px;background:var(--generation-surface-card);color:var(--generation-text-secondary);font-size:12.5px;font-weight:var(--weight-medium);padding:0 14px;transition:color var(--motion-quick) var(--ease-out-expo),border-color var(--motion-quick) var(--ease-out-expo),background-color var(--motion-quick) var(--ease-out-expo)}.generation-prompt-starters button:hover{border-color:var(--generation-border-hover);background:var(--generation-surface-subtle);color:var(--generation-text-primary)}.generation-prompt-starters button:focus-visible,.generation-support-toggle:focus-visible{outline:2px solid color-mix(in srgb,var(--generation-accent-teal) 42%,transparent);outline-offset:2px}.generation-prompt-tip{display:flex;align-items:center;gap:9px;min-height:52px;margin:0;border-radius:8px;background:var(--generation-surface-subtle);color:var(--generation-text-muted);font-size:13px;font-weight:var(--weight-regular);line-height:1.4;padding:12px 14px}.generation-prompt-tip svg{flex:0 0 auto;color:var(--generation-accent-teal)}.generation-support-toggle{display:flex;min-height:64px;align-items:center;justify-content:space-between;gap:12px;border:0;border-radius:8px;background:transparent;color:var(--generation-text-secondary);padding:8px 4px;text-align:left}.generation-support-toggle__content{display:flex;min-width:0;align-items:center;gap:10px}.generation-support-toggle__icon{display:grid;width:36px;height:36px;flex:0 0 auto;place-items:center;border-radius:8px;background:var(--generation-surface-subtle);color:var(--generation-text-muted);transition:color var(--motion-quick) var(--ease-out-expo),background-color var(--motion-quick) var(--ease-out-expo)}.generation-support-toggle__copy{min-width:0}.generation-support-toggle__control{position:relative;width:38px;height:22px;flex:0 0 auto;border-radius:999px;background:color-mix(in srgb,var(--generation-text-muted) 22%,transparent);transition:background-color var(--motion-quick) var(--ease-out-expo)}.generation-support-toggle__control span{position:absolute;top:3px;left:3px;width:16px;height:16px;border-radius:999px;background:var(--generation-surface-card);box-shadow:0 1px 3px #0f172a33;transition:transform var(--motion-quick) var(--ease-out-expo)}.generation-support-toggle:hover{background:color-mix(in srgb,var(--generation-surface-subtle) 72%,transparent)}.generation-support-toggle.is-active .generation-support-toggle__icon{background:color-mix(in srgb,var(--generation-accent-teal) 11%,transparent);color:var(--generation-accent-teal)}.generation-support-toggle.is-active.is-hint-tone .generation-support-toggle__icon{background:color-mix(in srgb,var(--generation-accent-blue) 10%,transparent);color:var(--generation-accent-blue)}.generation-support-toggle.is-active .generation-support-toggle__control{background:var(--generation-accent-teal)}.generation-support-toggle.is-active .generation-support-toggle__control span{transform:translate(16px)}:root[data-theme=dark] .generation-workspace-rebuild textarea{background-color:var(--generation-surface-subtle);border-color:var(--generation-border-default);color:var(--generation-text-primary)}:root[data-theme=dark] .generation-workspace-rebuild textarea:focus{border-color:var(--generation-accent-teal);box-shadow:none}:root[data-theme=dark] .generation-workspace-rebuild textarea::-moz-placeholder{color:var(--generation-text-muted)}:root[data-theme=dark] .generation-workspace-rebuild textarea::placeholder{color:var(--generation-text-muted)}.generation-app-shell{display:flex;min-height:100dvh;flex-direction:column;background:#edf2f6}:root[data-theme=dark] .generation-app-shell{background:var(--qc-surface-page)}.generation-app-shell .library-navbar{background:inherit;background-attachment:initial}.generation-app-shell>.generation-workspace-rebuild{flex:1 0 auto;min-height:calc(100dvh - 70px)}.generation-workspace-main{width:min(1660px,calc(100% - 42px));margin-inline:auto;padding-inline:0}.generation-app-shell .generation-workspace-form{height:calc(100dvh - 108px)}@media(max-width:900px){.generation-workspace-main{width:min(100% - 24px,1600px)}}@media(max-width:1280px){.generation-app-shell .generation-workspace-form{height:auto}}@media(max-width:760px){.generation-app-shell>.generation-workspace-rebuild{min-height:calc(100dvh - 116px)}.generation-app-shell .generation-workspace-form{height:auto}}.generation-source-mode-dock{--qc-liquid-band-bg: var(--generation-source-header-bg);width:min(560px,100%);margin:0 auto 32px;border:1px solid var(--qc-liquid-card-edge);border-radius:14px;padding:12px}.generation-source-mode{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:center;gap:4px;width:100%;border:1px solid color-mix(in srgb,var(--generation-border-default) 86%,transparent);border-radius:10px;background:color-mix(in srgb,var(--generation-surface-card) 48%,transparent);box-shadow:inset 0 1px 2px #0f172a09;padding:5px}.generation-source-mode__option{display:grid;min-width:0;min-height:58px;grid-template-columns:36px minmax(0,1fr) 16px;align-items:center;gap:10px;border:1px solid transparent;border-radius:7px;background:transparent;color:var(--generation-text-muted);font-family:var(--font-ui);padding:8px 11px;text-align:left;transition:color var(--motion-quick) var(--ease-out-expo),border-color var(--motion-quick) var(--ease-out-expo),background-color var(--motion-quick) var(--ease-out-expo),box-shadow var(--motion-quick) var(--ease-out-expo),transform var(--motion-quick) var(--ease-out-expo)}.generation-source-mode__icon{display:grid;width:36px;height:36px;place-items:center;border-radius:7px;background:color-mix(in srgb,var(--generation-text-muted) 8%,transparent);color:var(--generation-text-secondary);transition:color var(--motion-quick) var(--ease-out-expo),background-color var(--motion-quick) var(--ease-out-expo)}.generation-source-mode__copy{display:grid;min-width:0;gap:3px}.generation-source-mode__copy strong{overflow:hidden;color:var(--generation-text-secondary);font-size:13.5px;font-weight:var(--weight-semibold);line-height:1.1;text-overflow:ellipsis;white-space:nowrap}.generation-source-mode__copy span{overflow:hidden;color:var(--generation-text-muted);font-size:11.5px;font-weight:var(--weight-regular);line-height:1.15;text-overflow:ellipsis;white-space:nowrap}.generation-source-mode__check{color:var(--generation-accent-teal);opacity:0;transform:scale(.72);transition:opacity var(--motion-quick) var(--ease-out-expo),transform var(--motion-quick) var(--ease-out-expo)}.generation-source-mode__option:hover{border-color:color-mix(in srgb,var(--generation-border-hover) 70%,transparent);background:color-mix(in srgb,var(--generation-surface-card) 70%,transparent);color:var(--generation-text-primary)}.generation-source-mode__option.is-active{border-color:color-mix(in srgb,var(--generation-accent-teal) 34%,var(--generation-border-default));background:color-mix(in srgb,var(--generation-surface-card) 88%,var(--generation-accent-teal) 12%);box-shadow:var(--generation-count-key-shadow);color:var(--generation-accent-teal)}.generation-source-mode__option.is-active .generation-source-mode__icon{background:color-mix(in srgb,var(--generation-accent-teal) 13%,transparent);color:var(--generation-accent-teal)}.generation-source-mode__option.is-active .generation-source-mode__copy strong{color:var(--generation-text-primary)}.generation-source-mode__option.is-active .generation-source-mode__check{opacity:1;transform:scale(1)}.generation-source-mode__option:focus-visible{outline:2px solid color-mix(in srgb,var(--generation-accent-teal) 42%,transparent);outline-offset:1px}.generation-setup-column{display:grid;align-self:start;gap:16px;min-width:0;padding:8px 0 0}.generation-setup-overview{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:24px;padding:8px 3px 10px}.generation-setup-overview__content{display:grid;min-width:0;gap:9px}.generation-setup-overview__tagline{display:inline-flex;width:-moz-max-content;width:max-content;align-items:center;gap:5px;color:var(--generation-accent-teal);font-size:12px;font-weight:var(--weight-semibold);letter-spacing:.035em;line-height:1.2;text-transform:uppercase}.generation-setup-overview__tagline.is-custom{min-height:27px;border:1px solid color-mix(in srgb,var(--generation-accent-teal) 26%,transparent);border-radius:999px;background:color-mix(in srgb,var(--generation-accent-teal) 9%,transparent);padding:0 9px}.generation-setup-overview__content>strong{color:var(--generation-text-primary);font-family:var(--font-display);font-size:22px;font-weight:var(--weight-semibold);letter-spacing:-.015em;line-height:1.18}.generation-setup-overview__meta{display:flex;flex-wrap:wrap;align-items:center;gap:7px;color:var(--generation-text-secondary);font-size:11.5px;font-weight:var(--weight-semibold);line-height:1.2}.generation-setup-overview__meta>span{display:inline-flex;min-height:28px;align-items:center;border:1px solid color-mix(in srgb,var(--generation-border-default) 86%,transparent);border-radius:999px;background:var(--generation-surface-subtle);padding:0 10px}.generation-setup-overview__toggle{display:inline-flex;width:164px;min-height:44px;align-items:center;justify-content:center;gap:7px;border:1px solid var(--generation-border-hover);border-radius:8px;background:var(--generation-surface-card);box-shadow:var(--generation-count-key-shadow);color:var(--generation-text-primary);font-size:13px;font-weight:var(--weight-semibold);padding:0 14px;white-space:nowrap;transition:color var(--motion-quick) var(--ease-out-expo),border-color var(--motion-quick) var(--ease-out-expo),background-color var(--motion-quick) var(--ease-out-expo),transform var(--motion-quick) var(--ease-out-expo)}.generation-setup-overview__toggle:hover{border-color:color-mix(in srgb,var(--generation-accent-teal) 42%,var(--generation-border-hover));background:color-mix(in srgb,var(--generation-accent-teal) 8%,var(--generation-surface-card));color:var(--generation-text-primary);transform:translateY(-1px)}.generation-setup-overview__toggle:active{transform:translateY(0)}.generation-setup-overview__toggle:focus-visible{outline:2px solid color-mix(in srgb,var(--generation-accent-teal) 42%,transparent);outline-offset:2px}.generation-customization-workspace{min-width:0;align-self:start;overflow:hidden;border:1px solid var(--qc-liquid-card-edge);border-radius:16px;background:color-mix(in srgb,var(--generation-surface-card) 72%,transparent);outline:none}.generation-customization-header{--qc-liquid-band-bg: var(--generation-source-header-bg);display:flex;min-height:126px;align-items:center;justify-content:space-between;gap:32px;border-bottom:1px solid var(--generation-border-default);padding:22px 28px}.generation-customization-header__copy{display:grid;min-width:0;gap:7px}.generation-customization-header__copy>span{display:inline-flex;width:-moz-max-content;width:max-content;align-items:center;gap:7px;color:var(--generation-accent-teal);font-size:12px;font-weight:var(--weight-semibold);letter-spacing:.035em;line-height:1.2;text-transform:uppercase}.generation-customization-header__copy h2{margin:0;color:var(--generation-text-primary);font-family:var(--font-display);font-size:25px;font-weight:var(--weight-semibold);letter-spacing:-.02em;line-height:1.15}.generation-customization-header__copy p{max-width:64ch;margin:0;color:var(--generation-text-secondary);font-size:13.5px;font-weight:var(--weight-regular);line-height:1.45}.generation-customization-header__actions{display:flex;flex:0 0 auto;align-items:center;gap:16px}.generation-customization-header__actions>span{color:var(--generation-text-muted);font-size:12.5px;font-weight:var(--weight-medium);white-space:nowrap}.generation-customization-done{display:inline-flex;min-width:112px;min-height:46px;align-items:center;justify-content:center;gap:8px;border:1px solid var(--generation-submit-border);border-radius:9px;background:var(--generation-submit-bg);box-shadow:var(--generation-submit-shadow);color:#f4f9fb;font-size:14px;font-weight:var(--weight-semibold);padding:0 18px;transition:transform var(--motion-quick) var(--ease-out-expo),box-shadow var(--motion-quick) var(--ease-out-expo)}.generation-customization-done:hover{background:var(--generation-submit-bg-hover);box-shadow:var(--generation-submit-shadow-hover);transform:translateY(-1px)}.generation-customization-done:active{transform:translateY(0)}.generation-customization-done:focus-visible{outline:2px solid color-mix(in srgb,var(--generation-accent-teal) 42%,transparent);outline-offset:2px}.generation-customization-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.generation-customization-column{min-width:0;padding:4px 28px 10px}.generation-customization-column+.generation-customization-column{border-left:1px solid color-mix(in srgb,var(--generation-border-default) 86%,transparent)}.generation-settings-section{padding:22px 0;border-bottom:1px solid color-mix(in srgb,var(--generation-border-default) 82%,transparent)}.generation-customization-column .generation-settings-section:last-child{border-bottom:0}.generation-settings-section__heading{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.generation-settings-section__value{flex:0 0 auto;color:var(--generation-text-muted);font-size:13px;font-weight:var(--weight-medium);line-height:1.3;padding-top:1px}.generation-count-options{display:flex;flex-wrap:wrap;align-items:center;gap:7px;margin-top:14px}.generation-count-auto{display:inline-flex;min-height:42px;align-items:center;justify-content:center;gap:8px;border-style:solid;border-width:1px;border-radius:7px;padding:0 14px}.generation-count-auto strong{font-size:13.5px;font-weight:var(--weight-semibold);line-height:1}.generation-custom-count{display:flex;align-items:center;gap:8px;margin-top:10px}.generation-custom-count input{width:80px;height:38px;border:1px solid var(--generation-border-default);border-radius:7px;background:var(--generation-surface-card);color:var(--generation-text-primary);font-size:13px;font-weight:var(--weight-medium);outline:none;padding:0 10px}.generation-custom-count input:focus{border-color:var(--generation-accent-teal);box-shadow:none}.generation-custom-count span{color:var(--generation-text-muted);font-size:12px;font-weight:var(--weight-regular)}.generation-format-options{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.generation-customization-workspace .generation-format-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin-top:16px}.generation-customization-workspace .generation-format-options>*{width:100%}.generation-support-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:8px}.generation-customization-workspace .generation-support-options{gap:10px;margin-top:14px}.generation-customization-workspace .generation-guidance-textarea{min-height:132px;margin-top:14px;padding:14px}.generation-guidance-suggestions{display:grid;gap:8px;margin-top:12px}.generation-guidance-suggestions>span{color:var(--generation-text-muted);font-size:11.5px;font-weight:var(--weight-semibold);letter-spacing:.01em}.generation-guidance-suggestions>div{display:flex;flex-wrap:wrap;gap:7px}.generation-guidance-suggestions button{display:inline-flex;min-height:32px;align-items:center;gap:5px;border:1px solid var(--generation-border-default);border-radius:999px;background:var(--generation-surface-card);box-shadow:none;color:var(--generation-text-secondary);font-size:11.5px;font-weight:var(--weight-medium);line-height:1.2;padding:6px 10px;transition:color var(--motion-quick) var(--ease-out-expo),border-color var(--motion-quick) var(--ease-out-expo),background-color var(--motion-quick) var(--ease-out-expo)}.generation-guidance-suggestions button:hover{border-color:var(--generation-border-hover);color:var(--generation-text-primary)}.generation-guidance-suggestions button.is-applied{border-color:color-mix(in srgb,var(--generation-accent-teal) 38%,var(--generation-border-default));background:color-mix(in srgb,var(--generation-accent-teal) 9%,var(--generation-surface-card));color:var(--generation-accent-teal)}.generation-guidance-suggestions button:focus-visible{outline:2px solid color-mix(in srgb,var(--generation-accent-teal) 46%,transparent);outline-offset:2px}.generation-format-command{display:inline-flex;height:30px;align-items:center;gap:6px;border:1px solid var(--generation-border-default);border-radius:6px;background:var(--generation-surface-card);box-shadow:none;color:var(--generation-text-secondary);font-size:11.5px;font-weight:var(--weight-semibold);line-height:1;padding:0 8px;transition:color var(--motion-quick) var(--ease-out-expo),border-color var(--motion-quick) var(--ease-out-expo),background-color var(--motion-quick) var(--ease-out-expo),box-shadow var(--motion-quick) var(--ease-out-expo)}.generation-format-command:hover{border-color:var(--generation-border-hover);color:var(--generation-text-primary)}.generation-guidance-trigger{display:inline-flex;align-items:center;gap:10px;margin-top:10px;border:1px solid var(--generation-border-default);border-radius:8px;background:var(--generation-surface-subtle);box-shadow:none;color:var(--generation-text-secondary);padding:8px 14px 8px 8px;text-align:left;transition:color var(--motion-quick) var(--ease-out-expo),border-color var(--motion-quick) var(--ease-out-expo),background-color var(--motion-quick) var(--ease-out-expo),box-shadow var(--motion-quick) var(--ease-out-expo),transform var(--motion-quick) var(--ease-out-expo)}.generation-guidance-trigger:hover{border-color:var(--generation-border-hover);background:var(--generation-surface-card);box-shadow:none;color:var(--generation-text-primary);transform:translateY(-1px)}.generation-guidance-trigger:active{transform:translateY(0)}.generation-guidance-trigger__icon{display:grid;width:38px;height:38px;place-items:center;border-radius:7px;background:color-mix(in srgb,var(--generation-accent-blue) 10%,transparent);color:var(--generation-accent-blue)}.generation-guidance-trigger>strong{color:currentcolor;font-size:13.5px;font-weight:var(--weight-semibold);line-height:1.2}.generation-setup-footer{--qc-liquid-band-bg: var(--generation-setup-dock-bg);position:relative;z-index:5;display:grid;min-height:96px;grid-template-columns:minmax(0,1fr) minmax(184px,208px);align-items:center;gap:16px;margin-top:2px;border:1px solid var(--qc-liquid-band-edge);border-radius:12px;box-shadow:var(--qc-liquid-band-shadow);padding:16px}.generation-setup-footer__context{display:flex;min-width:0;align-items:center}.generation-setup-summary{display:grid;min-width:0;gap:7px}.generation-setup-summary__hint{color:var(--generation-text-muted);font-size:12.5px;font-weight:var(--weight-regular);line-height:1.3}.generation-setup-summary__label{color:var(--generation-text-primary);font-size:14.5px;font-weight:var(--weight-semibold);line-height:1.1}.generation-setup-summary__heading{display:flex;flex-wrap:wrap;align-items:center;gap:6px;min-width:0}.generation-submit-button{display:inline-flex;align-items:center;justify-content:center;gap:10px;width:100%;min-height:46px;padding:0 20px;border:1px solid var(--generation-submit-border);border-radius:9px;background:var(--generation-submit-bg);box-shadow:var(--generation-submit-shadow);color:#fff;font-size:14.5px;font-weight:var(--weight-semibold);line-height:1;transition:transform var(--motion-quick) var(--ease-out-expo),box-shadow var(--motion-quick) var(--ease-out-expo),filter var(--motion-quick) var(--ease-out-expo)}.generation-submit-button:hover:not(:disabled){background:var(--generation-submit-bg-hover);box-shadow:var(--generation-submit-shadow-hover);transform:translateY(-1px)}.generation-submit-button:disabled{cursor:not-allowed;border-color:var(--generation-disabled-action-border);background:var(--generation-disabled-action-bg);box-shadow:none;color:var(--generation-disabled-action-text)}.generation-submit-button--footer{width:auto;min-width:0;min-height:56px}.generation-progress-overlay{--generation-progress-teal: oklch(.74 .115 176);--generation-progress-blue: oklch(.73 .105 238);--generation-progress-amber: oklch(.78 .12 72);--generation-progress-rose: oklch(.68 .16 24);position:fixed;inset:0;z-index:1000;display:grid;place-items:center;overflow:auto;color:#e6f1f4;padding:24px}.generation-progress-backdrop{position:absolute;inset:0;background:#030f16ad;-webkit-backdrop-filter:blur(12px) saturate(.82);backdrop-filter:blur(12px) saturate(.82);animation:generation-progress-backdrop-in .32s var(--ease-out-expo) both}.generation-progress-shell{position:relative;z-index:1;display:grid;width:min(920px,100%);height:470px;grid-template-rows:34px minmax(0,1fr) 66px;overflow:hidden;border:1px solid transparent;border-radius:20px;background:radial-gradient(80% 130% at 8% 0%,oklch(.42 .06 183 / .28),transparent 58%) padding-box,radial-gradient(70% 120% at 100% 100%,oklch(.42 .055 242 / .2),transparent 62%) padding-box,linear-gradient(#0b1d25 0% 100%) padding-box,var(--qc-liquid-panel-rim) border-box;box-shadow:var(--qc-liquid-card-shadow),0 32px 90px #00020485,inset 1px 0 color-mix(in srgb,var(--qc-liquid-top-highlight) 42%,transparent),inset -1px 0 color-mix(in srgb,var(--qc-liquid-card-edge) 32%,transparent),inset 0 -1px color-mix(in srgb,var(--qc-liquid-card-edge) 40%,transparent);padding:24px;animation:generation-progress-shell-in .52s var(--ease-out-expo) both}.generation-progress-shell:before{position:absolute;top:0;right:0;left:0;height:3px;background:linear-gradient(90deg,var(--generation-progress-teal),var(--generation-progress-blue) 72%,var(--generation-progress-amber));content:""}.generation-progress-overlay.is-failed .generation-progress-shell:before{background:var(--generation-progress-rose)}.generation-progress-header{display:flex;align-items:center;min-height:34px;color:#a4b8bf;font-size:12.5px;font-weight:var(--weight-medium)}.generation-progress-main{display:grid;grid-template-columns:minmax(330px,.95fr) minmax(0,1.05fr);align-items:center;gap:32px;padding:24px 0 22px}.generation-progress-visual{position:relative;isolation:isolate;display:grid;min-height:220px;grid-template-columns:118px 74px 158px;align-items:center;justify-content:center}.generation-progress-source-card{position:relative;display:grid;width:108px;height:148px;align-content:start;gap:10px;overflow:hidden;border:1px solid oklch(.79 .022 220 / .72);border-radius:11px;background:#e3edf0;box-shadow:0 14px 34px #0002044d;color:#104642;padding:15px 13px;transform:rotate(-2deg)}.generation-progress-source-card:after{position:absolute;right:0;left:0;height:36px;background:linear-gradient(180deg,transparent,oklch(.72 .08 181 / .16),transparent);content:"";transform:translateY(-50px)}.generation-progress-overlay.is-working .generation-progress-source-card:after{animation:generation-progress-source-scan 2.4s cubic-bezier(.65,0,.35,1) infinite}.generation-progress-source-card>span{display:grid;width:36px;height:36px;place-items:center;border-radius:8px;background:#9bd9cd7a}.generation-progress-source-card>i{display:block;height:5px;border-radius:999px;background:#62757c38}.generation-progress-source-card>i:nth-of-type(2){width:72%}.generation-progress-source-card>i:nth-of-type(3){width:84%}.generation-progress-source-card small{align-self:end;color:#4b6269;font-size:10px;font-weight:var(--weight-semibold)}.generation-progress-transfer{display:flex;align-items:center;justify-content:center;gap:5px;color:var(--generation-progress-blue)}.generation-progress-transfer span{width:6px;height:6px;border-radius:999px;background:color-mix(in oklch,var(--generation-progress-teal) 56%,var(--generation-progress-blue));opacity:.28;animation:generation-progress-flow-dot 1.6s cubic-bezier(.65,0,.35,1) infinite;animation-delay:calc(var(--generation-flow-index) * .12s)}.generation-progress-overlay.is-complete .generation-progress-transfer span,.generation-progress-overlay.is-failed .generation-progress-transfer span{animation:none}.generation-progress-question-stack{position:relative;width:146px;height:174px;transition:transform .42s var(--ease-out-expo)}.generation-progress-question-card{position:absolute;inset:12px 0 0 8px;display:grid;align-content:start;gap:10px;border:1px solid oklch(.68 .04 225 / .4);border-radius:12px;background:#142c36;box-shadow:0 14px 30px #0002044d;padding:17px 15px}.generation-progress-question-card.is-back{transform:translate(-16px,-12px) rotate(-4deg);opacity:.44}.generation-progress-question-card.is-middle{transform:translate(-8px,-6px) rotate(-2deg);opacity:.68}.generation-progress-question-card.is-front{min-height:146px;color:var(--generation-progress-blue)}.generation-progress-overlay.is-working .generation-progress-question-card.is-front{animation:generation-progress-question-lift 2.2s cubic-bezier(.65,0,.35,1) infinite}.generation-progress-question-card>span{display:grid;width:38px;height:38px;place-items:center;border-radius:9px;background:#2a5e7d52}.generation-progress-question-card>i{display:block;height:6px;border-radius:999px;background:#9db2b929}.generation-progress-question-card>i:nth-of-type(2){width:74%}.generation-progress-question-card>i:nth-of-type(3){width:88%}.generation-progress-ready-mark{position:absolute;right:-7px;bottom:0;display:grid;width:44px;height:44px;place-items:center;border:4px solid oklch(.22 .028 228);border-radius:999px;background:#1c3e54;color:#c0dcef;transition:color .26s var(--ease-out-expo),background-color .26s var(--ease-out-expo),transform .42s var(--ease-out-expo)}.generation-progress-overlay.is-working .generation-progress-ready-mark{animation:generation-progress-ready-pulse 1.8s cubic-bezier(.65,0,.35,1) infinite}.generation-progress-overlay.is-complete .generation-progress-ready-mark{background:#008f78;background:oklch(.58 .12 176);color:#f2fbf9;transform:scale(1.06)}.generation-progress-overlay.is-failed .generation-progress-ready-mark{background:#a74543;color:#ffedea;color:oklch(.96 .025 28)}.generation-progress-copy{min-width:0}.generation-progress-kicker{display:block;margin-bottom:10px;color:var(--generation-progress-teal);font-size:13px;font-weight:var(--weight-semibold);line-height:1.25}.generation-progress-overlay.is-failed .generation-progress-kicker{color:#f4b1a7}.generation-progress-copy h2{min-height:2.16em;margin:0;max-width:16ch;color:#eef7fa;font-family:var(--font-display);font-size:31px;font-weight:var(--weight-semibold);letter-spacing:-.02em;line-height:1.08;text-wrap:balance}.generation-progress-copy>p:not(.generation-progress-note){min-height:3.1em;max-width:52ch;margin:13px 0 0;color:#acbec4;font-size:14px;font-weight:var(--weight-regular);line-height:1.55}.generation-progress-meter{display:grid;gap:8px;margin-top:24px}.generation-progress-meter__labels{display:flex;align-items:center;justify-content:space-between;gap:16px;color:#a4b8bf;font-size:11.5px;font-weight:var(--weight-semibold)}.generation-progress-meter__track{height:8px;overflow:hidden;border-radius:999px;background:#3b51596b}.generation-progress-meter__track>span{display:block;width:100%;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--generation-progress-teal),var(--generation-progress-blue));transform:scaleX(var(--generation-progress-scale));transform-origin:left center;transition:transform .52s var(--ease-out-expo)}.generation-progress-note{min-height:58px;margin:17px 0 0;border-top:1px solid oklch(.62 .035 220 / .18);color:#8d9fa5;font-size:11.5px;font-weight:var(--weight-regular);line-height:1.45;padding-top:14px}.generation-progress-actions{display:flex;justify-content:flex-end;gap:10px;margin:0}.generation-progress-actions-zone{display:flex;min-height:66px;flex-direction:column;justify-content:flex-end}.generation-progress-actions button{display:inline-flex;min-height:46px;align-items:center;justify-content:center;gap:7px;border:1px solid var(--generation-border-default);border-radius:9px;background:var(--generation-surface-card);box-shadow:var(--generation-count-key-shadow);color:var(--generation-text-primary);font-size:13px;font-weight:var(--weight-semibold);padding:0 17px;transition:color .15s var(--ease-out-expo),border-color .15s var(--ease-out-expo),background-color .15s var(--ease-out-expo),box-shadow .15s var(--ease-out-expo),transform .15s var(--ease-out-expo)}.generation-progress-actions button:first-child{border-color:var(--generation-submit-border);background:var(--generation-submit-bg);box-shadow:var(--generation-submit-shadow);color:#f2fbf8}.generation-progress-actions--working button:first-child{border-color:var(--generation-border-default);background:var(--generation-surface-card);box-shadow:var(--generation-count-key-shadow);color:var(--generation-text-primary)}.generation-progress-actions.generation-progress-actions--working button:first-child:hover{border-color:var(--generation-border-hover);background:var(--generation-surface-subtle);box-shadow:var(--generation-submit-shadow-hover)}.generation-progress-actions--complete{border-top:1px solid oklch(.62 .035 220 / .18);padding-top:18px}.generation-progress-actions button:hover{border-color:var(--generation-border-hover);background:var(--generation-surface-subtle);box-shadow:var(--generation-submit-shadow-hover);transform:translateY(-1px)}.generation-progress-actions button:first-child:hover{border-color:var(--generation-submit-border);background:var(--generation-submit-bg-hover);box-shadow:var(--generation-submit-shadow-hover)}.generation-progress-actions button:active{box-shadow:var(--generation-count-key-pressed-shadow);transform:translateY(1px)}.generation-progress-actions button:focus-visible{outline:2px solid var(--generation-progress-teal);outline-offset:2px}.generation-progress-actions button:disabled,.generation-progress-actions button:disabled:hover,.generation-progress-actions button:disabled:active{cursor:wait;opacity:.65;transform:none}:root:not([data-theme=dark]) .generation-progress-overlay{--generation-progress-teal: oklch(.56 .12 176);--generation-progress-blue: oklch(.57 .12 238);--generation-progress-amber: oklch(.67 .13 72);--generation-progress-rose: oklch(.58 .17 24);color:#1b292f;color-scheme:light}:root:not([data-theme=dark]) .generation-progress-backdrop{background:#8c9ba27a;-webkit-backdrop-filter:blur(10px) saturate(.86);backdrop-filter:blur(10px) saturate(.86)}:root:not([data-theme=dark]) .generation-progress-shell{background:radial-gradient(80% 130% at 8% 0%,oklch(.9 .035 183 / .52),transparent 58%) padding-box,radial-gradient(70% 120% at 100% 100%,oklch(.91 .035 242 / .42),transparent 62%) padding-box,linear-gradient(#f1f8fb 0% 100%) padding-box,var(--qc-liquid-panel-rim) border-box;box-shadow:var(--qc-liquid-card-shadow),0 28px 72px #1b2c323d,inset 1px 0 color-mix(in srgb,var(--qc-liquid-top-highlight) 48%,transparent),inset -1px 0 color-mix(in srgb,var(--qc-liquid-card-edge) 30%,transparent),inset 0 -1px color-mix(in srgb,var(--qc-liquid-card-edge) 38%,transparent)}:root:not([data-theme=dark]) .generation-progress-header,:root:not([data-theme=dark]) .generation-progress-meter__labels{color:#54676d}:root:not([data-theme=dark]) .generation-progress-source-card{border-color:#aabfc6;background:#f3fafc;box-shadow:0 14px 30px #2a3b4226}:root:not([data-theme=dark]) 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generation-progress-question-lift{0%,to{transform:translateY(0)}50%{transform:translateY(-4px)}}@keyframes generation-progress-ready-pulse{0%,to{transform:scale(.94)}50%{transform:scale(1.03)}}@media(max-width:1180px){.generation-customization-workspace{width:min(920px,100%);justify-self:center}}@media(max-width:920px){.generation-customization-header{align-items:flex-start}.generation-customization-header__actions{flex-direction:column;align-items:flex-end;gap:10px}.generation-customization-grid{grid-template-columns:1fr}.generation-customization-column+.generation-customization-column{border-top:1px solid color-mix(in srgb,var(--generation-border-default) 86%,transparent);border-left:0}.generation-setup-column{width:100%;max-width:620px;justify-self:center}.generation-progress-shell{display:block;width:min(720px,100%);height:auto;min-height:0}.generation-progress-main{grid-template-columns:1fr;gap:22px}.generation-progress-visual{min-height:220px}.generation-progress-copy h2{max-width:22ch}}@media(max-width:560px){.generation-source-mode-dock{margin-bottom:24px;padding:10px}.generation-source-mode{grid-template-columns:repeat(2,minmax(0,1fr))}.generation-customization-header{display:grid;gap:18px;padding:20px}.generation-customization-header__actions{width:100%;flex-direction:row;justify-content:space-between;align-items:center}.generation-customization-column{padding-inline:20px}.generation-customization-workspace 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12px}.generation-progress-question-card.is-front{min-height:122px}.generation-progress-question-card>span{width:32px;height:32px}.generation-progress-ready-mark{width:38px;height:38px}.generation-progress-copy h2{font-size:27px}}@media(max-width:420px){.generation-source-mode{grid-template-columns:1fr}.generation-source-content{padding:0}.generation-dropzone{min-height:260px;padding-inline:18px}.generation-customization-header__actions>span{display:none}.generation-customization-done{width:100%}.generation-file-support{max-width:250px}.generation-settings-section__heading{display:grid}.generation-settings-section__value{padding-top:0}.generation-progress-header>span:first-child{display:none}.generation-progress-visual{grid-template-columns:86px 40px 112px}.generation-progress-transfer{gap:3px}.generation-progress-transfer span:nth-child(-n+2){display:none}.generation-progress-actions{display:grid;grid-template-columns:1fr}}.hide-scrollbar{scrollbar-width:none;-ms-overflow-style:none}.hide-scrollbar::-webkit-scrollbar{display:none;width:0;height:0}:root[data-theme=dark] .generation-workspace-rebuild .hide-scrollbar::-webkit-scrollbar{display:block;height:6px;width:6px}:root[data-theme=dark] .generation-workspace-rebuild .hide-scrollbar::-webkit-scrollbar-track{background:transparent}:root[data-theme=dark] .generation-workspace-rebuild .hide-scrollbar::-webkit-scrollbar-thumb{background:var(--generation-border-default);border-radius:999px}:root[data-theme=dark] .generation-workspace-rebuild .hide-scrollbar::-webkit-scrollbar-thumb:hover{background:var(--generation-border-hover)}.generation-workspace-rebuild .border,.generation-workspace-rebuild .border-2{border-style:solid}.generation-workspace-rebuild .border-0{border-style:none}.generation-workspace-rebuild .border-b{border-bottom-style:solid}.generation-workspace-rebuild .border-r{border-right-style:solid}.generation-workspace-rebuild .border-t{border-top-style:solid}.generation-workspace-rebuild .border-l{border-left-style:solid}.generation-workspace-rebuild .border-dashed{border-style:dashed}.zen-creator-page{--creator-surface-page: var(--qc-surface-page);--creator-surface-panel: #f7fafc;--creator-surface-cell: #f4f8fb;--creator-surface-card: #ffffff;--creator-border-default: var(--qc-border-default);--creator-border-hover: var(--qc-border-strong);--creator-accent-teal: var(--qc-accent-teal-strong);--creator-accent-blue: var(--qc-accent-blue);--creator-accent-amber: color-mix(in srgb, var(--qc-accent-amber) 70%, var(--qc-text-primary));--creator-text-primary: #111c31;--creator-text-secondary: #42516a;--creator-text-muted: #55647a;--creator-toggle-bg-hover: rgba(0, 0, 0, .04);--creator-toggle-bg-selected: var(--qc-primary-action-bg);--creator-toggle-border-selected: var(--qc-primary-action-border);--creator-accent-teal-surface: rgb(var(--qc-accent-teal-rgb) / .1);--creator-accent-blue-surface: rgb(var(--qc-accent-blue-rgb) / .09);--creator-accent-amber-surface: rgb(var(--qc-accent-amber-rgb) / .14);--creator-icon-teal-rest: var(--qc-accent-teal-strong);--creator-icon-blue-rest: var(--qc-accent-blue);--creator-toggle-container-bg: #eef2f6;--creator-key-track-shadow: inset 0 1px 2px 0 rgba(15, 23, 42, .05);--creator-key-shadow: inset 0 1px 0 0 rgba(255, 255, 255, .85), 0 1px 1px 0 rgba(15, 23, 42, .07), 0 2px 4px -1px rgba(15, 23, 42, .1);--creator-key-pressed-shadow: inset 0 2px 4px 0 rgba(15, 23, 42, .14), inset 0 -1px 0 0 rgba(255, 255, 255, .55);--creator-key-selected-bg: color-mix(in srgb, var(--qc-accent-teal) 14%, white);--creator-key-selected-fg: var(--qc-accent-teal-strong);--creator-get-started-question-bg: radial-gradient(140% 120% at 8% 0%, rgba(255, 255, 255, .98) 0%, rgba(180, 235, 231, .5) 31%, transparent 60%), radial-gradient(120% 120% at 88% 12%, rgba(12, 103, 96, .08) 0%, rgba(12, 103, 96, .02) 36%, transparent 62%), linear-gradient(135deg, rgba(240, 250, 248, .98) 0%, rgba(216, 241, 237, .9) 52%, rgba(243, 251, 249, .98) 100%);--creator-get-started-question-border: rgba(12, 103, 96, .22);--creator-get-started-question-shadow: inset 0 1px 0 rgba(255, 255, 255, .92), inset 0 -1px 0 rgba(12, 103, 96, .06);--creator-get-started-content-bg: radial-gradient(140% 120% at 8% 0%, rgba(255, 255, 255, .98) 0%, rgba(191, 219, 254, .5) 31%, transparent 60%), radial-gradient(120% 120% at 88% 12%, rgba(26, 115, 232, .08) 0%, rgba(26, 115, 232, .02) 36%, transparent 62%), linear-gradient(135deg, rgba(240, 246, 255, .98) 0%, rgba(219, 234, 254, .9) 52%, rgba(243, 248, 255, .98) 100%);--creator-get-started-content-border: rgba(26, 115, 232, .22);--creator-get-started-content-shadow: inset 0 1px 0 rgba(255, 255, 255, .92), inset 0 -1px 0 rgba(26, 115, 232, .06);--creator-get-started-sheen: linear-gradient(118deg, transparent 0 20%, rgba(255, 255, 255, .5) 32%, transparent 48%), radial-gradient(110% 90% at 12% 0%, rgba(255, 255, 255, .6), transparent 48%);--creator-get-started-overlay: linear-gradient(90deg, transparent, rgba(255, 255, 255, .22), transparent), linear-gradient(180deg, transparent 55%, rgba(12, 103, 96, .04));--creator-band-teal-bg: radial-gradient(140% 120% at 8% 0%, rgba(255, 255, 255, .98) 0%, rgba(180, 235, 231, .5) 31%, transparent 60%), radial-gradient(120% 120% at 88% 12%, rgba(12, 103, 96, .08) 0%, rgba(12, 103, 96, .02) 36%, transparent 62%), linear-gradient(135deg, rgba(240, 250, 248, .98) 0%, rgba(216, 241, 237, .9) 52%, rgba(243, 251, 249, .98) 100%);display:flex;flex-direction:column;height:100vh;background:var(--creator-surface-page);color:var(--creator-text-secondary);font-family:var(--font-ui)}:root[data-theme=dark] .zen-creator-page{--creator-surface-page: var(--qc-surface-page);--creator-surface-panel: rgba(20, 32, 51, .84);--creator-surface-cell: rgba(27, 42, 60, .86);--creator-surface-card: rgba(25, 39, 58, .88);background:var(--qc-surface-page);--creator-border-default: var(--qc-border-default);--creator-border-hover: var(--qc-border-strong);--creator-accent-teal: var(--qc-accent-teal-strong);--creator-accent-blue: var(--qc-accent-blue);--creator-accent-amber: var(--qc-accent-amber);--creator-text-primary: var(--qc-text-primary);--creator-text-secondary: var(--qc-text-secondary);--creator-text-muted: #8292a4;--creator-toggle-bg-hover: rgba(237, 243, 247, .055);--creator-toggle-bg-selected: var(--qc-primary-action-bg);--creator-toggle-border-selected: rgb(var(--qc-accent-teal-strong-rgb) / .26);--creator-accent-teal-surface: rgb(var(--qc-accent-teal-rgb) / .12);--creator-accent-blue-surface: rgb(var(--qc-accent-blue-rgb) / .13);--creator-accent-amber-surface: rgb(var(--qc-accent-amber-rgb) / .13);--creator-icon-teal-rest: var(--qc-accent-teal-strong);--creator-icon-blue-rest: var(--creator-accent-blue);--creator-toggle-container-bg: rgba(18, 31, 47, .78);--creator-key-track-shadow: inset 0 1px 2px 0 rgba(2, 7, 15, .3);--creator-key-shadow: inset 0 1px 0 0 rgba(255, 255, 255, .07), 0 1px 2px 0 rgba(3, 9, 17, .34), 0 3px 6px -2px rgba(3, 9, 17, .36);--creator-key-pressed-shadow: inset 0 2px 6px 0 rgba(3, 9, 17, .52), inset 0 1px 2px 0 rgba(3, 9, 17, .42);--creator-key-selected-bg: rgb(var(--qc-accent-teal-rgb) / .16);--creator-key-selected-fg: var(--qc-accent-teal-strong);--creator-get-started-question-bg: radial-gradient(140% 120% at 8% 0%, rgba(105, 179, 170, .14) 0%, rgba(77, 154, 145, .045) 36%, transparent 62%), radial-gradient(120% 120% at 88% 12%, rgba(105, 179, 170, .1) 0%, rgba(77, 154, 145, .035) 40%, transparent 66%), linear-gradient(135deg, rgba(22, 39, 47, .9) 0%, rgba(17, 31, 42, .86) 55%, rgba(24, 42, 51, .9) 100%);--creator-get-started-question-border: rgb(var(--qc-accent-teal-strong-rgb) / .22);--creator-get-started-question-shadow: inset 0 1px 0 rgba(213, 227, 240, .075), inset 0 -1px 0 rgba(3, 9, 17, .24);--creator-get-started-content-bg: radial-gradient(140% 120% at 8% 0%, rgba(148, 175, 207, .14) 0%, rgba(96, 124, 156, .045) 36%, transparent 62%), radial-gradient(120% 120% at 88% 12%, rgba(148, 175, 207, .1) 0%, rgba(96, 124, 156, .035) 40%, transparent 66%), linear-gradient(135deg, rgba(23, 35, 51, .9) 0%, rgba(17, 28, 44, .86) 55%, rgba(25, 39, 58, .9) 100%);--creator-get-started-content-border: rgb(var(--qc-accent-blue-rgb) / .22);--creator-get-started-content-shadow: inset 0 1px 0 rgba(213, 227, 240, .075), inset 0 -1px 0 rgba(3, 9, 17, .24);--creator-get-started-sheen: linear-gradient(118deg, transparent 0 24%, rgba(213, 227, 240, .055) 35%, transparent 52%), radial-gradient(110% 90% at 12% 0%, rgba(213, 227, 240, .075), transparent 50%);--creator-get-started-overlay: linear-gradient(90deg, transparent, rgba(213, 227, 240, .055), transparent), linear-gradient(180deg, transparent 55%, rgba(3, 9, 17, .16));--creator-band-teal-bg: radial-gradient(140% 120% at 8% 0%, rgba(105, 179, 170, .13) 0%, rgba(77, 154, 145, .045) 36%, transparent 62%), radial-gradient(120% 120% at 88% 12%, rgba(105, 179, 170, .1) 0%, rgba(77, 154, 145, .035) 40%, transparent 66%), linear-gradient(135deg, rgba(22, 39, 47, .9) 0%, rgba(17, 31, 42, .86) 55%, rgba(24, 42, 51, .9) 100%)}.zen-creator-portal-scope{--creator-surface-card: #ffffff;--creator-border-default: var(--qc-border-default);--creator-text-primary: #111c31;--creator-accent-teal-surface: rgb(var(--qc-accent-teal-rgb) / .1);--creator-accent-teal: var(--qc-accent-teal-strong)}:root[data-theme=dark] .zen-creator-portal-scope{--creator-surface-card: #1e2431;--creator-border-default: var(--qc-border-default);--creator-text-primary: #e2e8f0;--creator-accent-teal-surface: rgb(var(--qc-accent-teal-rgb) / .14);--creator-accent-teal: var(--qc-accent-teal-strong)}.zen-nav{--qc-liquid-panel-bg: linear-gradient(var(--creator-surface-panel), var(--creator-surface-panel));--qc-liquid-panel-rim: linear-gradient(var(--creator-border-default), var(--creator-border-default));--qc-liquid-panel-blur: none;--qc-liquid-panel-shadow: none;--qc-liquid-band-shadow: none;display:grid;gap:20px;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;box-shadow:var(--qc-liquid-band-shadow);min-height:78px;padding:14px clamp(18px,3vw,48px) 10px;border-bottom:1px solid var(--creator-border-default);position:sticky;top:0;z-index:30}:root[data-theme=dark] .zen-nav{--qc-liquid-panel-bg: linear-gradient(var(--creator-surface-panel), var(--creator-surface-panel));--qc-liquid-panel-rim: linear-gradient(var(--creator-border-default), var(--creator-border-default))}.zen-creator-band{border-color:var(--qc-liquid-band-edge)}.zen-creator-band--teal{--qc-liquid-band-bg: var(--creator-band-teal-bg)}.zen-nav-left{justify-self:start;display:flex;align-items:center;gap:12px;min-width:0}.zen-nav .zen-back-btn{padding-inline:0 12px}.zen-nav-divider{width:1px;height:24px;background:color-mix(in srgb,var(--qc-liquid-card-edge) 76%,transparent)}.zen-nav-center{justify-self:center;display:flex;align-items:center;min-width:0}.zen-nav-right{justify-self:end;display:flex;align-items:center;gap:8px}.zen-history-actions{display:inline-flex;align-items:center;gap:3px;margin-right:2px;padding:3px;border:1px solid color-mix(in srgb,var(--qc-liquid-card-edge) 72%,transparent);border-radius:10px;background:color-mix(in srgb,var(--creator-surface-card) 48%,transparent);box-shadow:inset 0 1px color-mix(in srgb,var(--qc-liquid-top-highlight) 58%,transparent)}.zen-nav .zen-nav-icon-button{width:32px;min-width:32px;height:32px;min-height:32px;padding:0;border-radius:7px;background:transparent;color:var(--creator-text-secondary);box-shadow:none}.zen-nav .zen-nav-icon-button:focus-visible,.zen-title-edit-button:focus-visible{outline:2px solid color-mix(in srgb,var(--creator-accent-teal) 62%,transparent);outline-offset:2px}.zen-nav .zen-nav-icon-button:disabled{cursor:not-allowed;opacity:.34;transform:none}.zen-nav .zen-nav-delete-button{width:40px;min-width:40px;height:40px;min-height:40px;border:1px solid color-mix(in srgb,var(--creator-border-default) 78%,transparent);background:color-mix(in srgb,var(--creator-surface-card) 62%,transparent);color:var(--creator-text-muted)}.zen-nav .zen-nav-delete-button:hover:not(:disabled){background:rgb(var(--qc-semantic-danger-rgb) / .1);border-color:rgb(var(--qc-semantic-danger-rgb) / .34);color:var(--qc-semantic-danger)}.zen-nav .zen-nav-study-action{height:40px;min-height:40px;padding-inline:16px}.zen-nav-meta{display:inline-flex;align-items:center;gap:8px;color:var(--creator-text-muted);font-size:13px;font-weight:var(--weight-medium);letter-spacing:0;-webkit-user-select:none;-moz-user-select:none;user-select:none;white-space:nowrap}.zen-nav-meta-divider{opacity:.4;font-weight:400}.zen-nav-meta-status{display:inline-flex;align-items:center;gap:5px;min-height:26px;padding:0 8px;border:1px solid color-mix(in srgb,currentColor 18%,transparent);border-radius:999px;background:color-mix(in srgb,currentColor 7%,transparent);font-size:12px;font-weight:var(--weight-semibold)}.zen-nav-meta-status.is-saved{color:var(--creator-accent-teal)}.zen-nav-meta-status.is-saving{color:var(--creator-accent-blue)}.zen-nav-meta-status.is-recoverable{color:var(--creator-accent-amber)}.zen-nav-meta-status.is-failed{color:var(--qc-semantic-danger)}:root[data-theme=dark] .zen-nav-meta-status.is-saved{color:var(--qc-semantic-success)}:root[data-theme=dark] .zen-nav-meta-status.is-saving{color:var(--qc-accent-blue)}:root[data-theme=dark] .zen-nav-meta-status.is-recoverable{color:var(--qc-accent-amber)}:root[data-theme=dark] .zen-nav-meta-status.is-failed{color:var(--qc-semantic-danger)}.zen-title-input-wrapper{position:relative;display:flex;align-items:center;width:min(38vw,500px);min-width:320px;height:44px;background:color-mix(in srgb,var(--creator-surface-card) 68%,transparent);border:1px solid color-mix(in srgb,var(--qc-liquid-card-edge) 84%,transparent);border-radius:10px;transition:background-color var(--motion-quick) var(--ease-out-expo),border-color var(--motion-quick) var(--ease-out-expo),box-shadow var(--motion-quick) var(--ease-out-expo);box-shadow:inset 0 1px color-mix(in srgb,var(--qc-liquid-top-highlight) 72%,transparent),0 2px 8px color-mix(in srgb,var(--creator-text-primary) 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/ calc(var(--qc-border-default-alpha) * .7))}.max-\[900px\]\:pb-0{padding-bottom:0}.max-\[900px\]\:pl-2{padding-left:.5rem}.max-\[900px\]\:text-\[23px\]{font-size:23px}.max-\[900px\]\:\[scrollbar-gutter\:auto\]{scrollbar-gutter:auto}}@media(max-width:780px){.max-\[780px\]\:px-3{padding-left:.75rem;padding-right:.75rem}}@media(max-width:760px){.max-\[760px\]\:left-auto{left:auto}.max-\[760px\]\:right-3{right:.75rem}.max-\[760px\]\:grid{display:grid}.max-\[760px\]\:scroll-mt-\[160px\]{scroll-margin-top:160px}}@media(max-width:720px){.max-\[720px\]\:w-full{width:100%}.max-\[720px\]\:rotate-90{--tw-rotate: 90deg;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.max-\[720px\]\:grid-cols-1{grid-template-columns:repeat(1,minmax(0,1fr))}.max-\[720px\]\:gap-2{gap:.5rem}.max-\[720px\]\:border-l-0{border-left-width:0px}.max-\[720px\]\:border-t{border-top-width:1px}}@media(max-width:700px){.max-\[700px\]\:w-\[calc\(100\%_-_24px\)\]{width:calc(100% - 24px)}.max-\[700px\]\:pt-3{padding-top:.75rem}}@media(max-width:560px){.max-\[560px\]\:col-span-2{grid-column:span 2 / span 2}.max-\[560px\]\:mx-\[18px\]{margin-left:18px;margin-right:18px}.max-\[560px\]\:mb-\[30px\]{margin-bottom:30px}.max-\[560px\]\:min-h-0{min-height:0px}.max-\[560px\]\:w-full{width:100%}.max-\[560px\]\:rotate-90{--tw-rotate: 90deg;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.max-\[560px\]\:grid-cols-1{grid-template-columns:repeat(1,minmax(0,1fr))}.max-\[560px\]\:grid-cols-\[32px_minmax\(0\,1fr\)\]{grid-template-columns:32px minmax(0,1fr)}.max-\[560px\]\:grid-cols-\[40px_minmax\(0\,1fr\)_auto\]{grid-template-columns:40px minmax(0,1fr) 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120px}.sm\:flex-row{flex-direction:row}.sm\:items-center{align-items:center}.sm\:justify-between{justify-content:space-between}.sm\:gap-3{gap:.75rem}.sm\:gap-4{gap:1rem}.sm\:gap-5{gap:1.25rem}.sm\:border-l{border-left-width:1px}.sm\:border-t-0{border-top-width:0px}.sm\:p-5{padding:1.25rem}.sm\:p-6{padding:1.5rem}.sm\:p-8{padding:2rem}.sm\:\!px-5{padding-left:1.25rem!important;padding-right:1.25rem!important}.sm\:px-4{padding-left:1rem;padding-right:1rem}.sm\:px-6{padding-left:1.5rem;padding-right:1.5rem}.sm\:px-7{padding-left:1.75rem;padding-right:1.75rem}.sm\:px-8{padding-left:2rem;padding-right:2rem}.sm\:py-12{padding-top:3rem;padding-bottom:3rem}.sm\:py-14{padding-top:3.5rem;padding-bottom:3.5rem}.sm\:py-4{padding-top:1rem;padding-bottom:1rem}.sm\:pb-12{padding-bottom:3rem}.sm\:pb-16{padding-bottom:4rem}.sm\:pt-14{padding-top:3.5rem}.sm\:pt-7{padding-top:1.75rem}.sm\:text-\[44px\]{font-size:44px}.sm\:text-\[52px\]{font-size:52px}}@media(min-width:761px){.min-\[761px\]\:hidden{display:none}}@media(min-width:768px){.md\:mt-20{margin-top:5rem}.md\:grid-cols-\[1fr_1\.2fr\]{grid-template-columns:1fr 1.2fr}}@media(min-width:1024px){.lg\:grid-cols-1{grid-template-columns:repeat(1,minmax(0,1fr))}.lg\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.lg\:grid-cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}.lg\:grid-cols-\[0\.34fr_0\.66fr\]{grid-template-columns:.34fr .66fr}.lg\:grid-cols-\[0\.72fr_1\.28fr\]{grid-template-columns:.72fr 1.28fr}.lg\:grid-cols-\[0\.82fr_1\.18fr\]{grid-template-columns:.82fr 1.18fr}.lg\:grid-cols-\[minmax\(0\,1fr\)_auto\]{grid-template-columns:minmax(0,1fr) auto}.lg\:justify-end{justify-content:flex-end}.lg\:gap-14{gap:3.5rem}.lg\:border-l{border-left-width:1px}.lg\:border-t-0{border-top-width:0px}.lg\:px-10{padding-left:2.5rem;padding-right:2.5rem}.lg\:px-5{padding-left:1.25rem;padding-right:1.25rem}.lg\:py-16{padding-top:4rem;padding-bottom:4rem}.lg\:pb-0{padding-bottom:0}.lg\:pb-1{padding-bottom:.25rem}.lg\:pl-10{padding-left:2.5rem}.lg\:pr-10{padding-right:2.5rem}.lg\:pt-0{padding-top:0}.lg\:pt-3{padding-top:.75rem}}@media(min-width:1080px){.min-\[1080px\]\:inline{display:inline}}@media(min-width:1280px){.xl\:sticky{position:sticky}.xl\:top-8{top:2rem}.xl\:mt-8{margin-top:2rem}.xl\:mt-9{margin-top:2.25rem}.xl\:block{display:block}.xl\:grid{display:grid}.xl\:min-h-0{min-height:0px}.xl\:min-h-\[min\(840px\,calc\(100svh_-_2rem\)\)\]{min-height:min(840px,calc(100svh - 2rem))}.xl\:translate-y-\[38px\]{--tw-translate-y: 38px;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.xl\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.xl\:grid-cols-\[minmax\(0\,1\.12fr\)_minmax\(420px\,0\.88fr\)\]{grid-template-columns:minmax(0,1.12fr) minmax(420px,.88fr)}.xl\:grid-cols-\[minmax\(0\,1fr\)_118px\]{grid-template-columns:minmax(0,1fr) 118px}.xl\:grid-cols-\[minmax\(0\,1fr\)_320px\]{grid-template-columns:minmax(0,1fr) 320px}.xl\:grid-cols-\[minmax\(430px\,0\.8fr\)_minmax\(0\,1\.2fr\)\]{grid-template-columns:minmax(430px,.8fr) minmax(0,1.2fr)}.xl\:grid-rows-\[auto_minmax\(0\,1fr\)\]{grid-template-rows:auto minmax(0,1fr)}.xl\:grid-rows-\[minmax\(0\,1fr\)_auto\]{grid-template-rows:minmax(0,1fr) auto}.xl\:items-start{align-items:flex-start}.xl\:items-center{align-items:center}.xl\:justify-end{justify-content:flex-end}.xl\:gap-14{gap:3.5rem}.xl\:gap-20{gap:5rem}.xl\:gap-7{gap:1.75rem}.xl\:self-center{align-self:center}.xl\:border-b-0{border-bottom-width:0px}.xl\:border-r{border-right-width:1px}.xl\:pb-5{padding-bottom:1.25rem}.xl\:pl-14{padding-left:3.5rem}.xl\:pr-14{padding-right:3.5rem}.xl\:pt-1{padding-top:.25rem}.xl\:pt-6{padding-top:1.5rem}.xl\:text-\[43px\]{font-size:43px}}@media(min-width:1536px){.\32xl\:gap-20{gap:5rem}}.\[\&\>span\:first-child\]\:truncate>span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.\[\&\>span\]\:text-\[14px\]>span{font-size:14px}.\[\&\>span\]\:normal-case>span{text-transform:none}.\[\&\>span\]\:tracking-normal>span{letter-spacing:0em}.\[\&_\.formula-panel__math\]\:leading-none .formula-panel math{line-height:1}.\[\&_mjx-container\]\:\!m-0 mjx-container{margin:0!important}:root{--qc-radius-control: 10px;--qc-radius-surface: 8px;--qc-primary-action-radius: 10px;--qc-primary-action-bg: linear-gradient(180deg, #0a746c, #075f5b);--qc-primary-action-bg-hover: linear-gradient(180deg, #0b8178, #076a64);--qc-primary-action-border: color-mix(in srgb, var(--qc-accent-teal-strong) 76%, var(--qc-border-default));--qc-primary-action-border-hover: color-mix(in srgb, var(--qc-accent-teal-strong) 88%, var(--qc-border-default));--qc-primary-action-ink: #f6fbf9;--qc-primary-action-shadow: inset 0 1px 0 color-mix(in srgb, white 26%, transparent), 0 1px 2px rgb(var(--qc-ink-rgb) / .08);--qc-primary-action-shadow-hover: inset 0 1px 0 color-mix(in srgb, white 30%, transparent), 0 2px 6px rgb(var(--qc-ink-rgb) / .11);--qc-control-border-subtle: color-mix(in srgb, var(--qc-border-default) 86%, transparent);--qc-control-border-strong: color-mix(in srgb, var(--qc-border-strong) 82%, transparent);--qc-surface-flat: color-mix(in srgb, var(--qc-surface-panel) 88%, transparent);--qc-surface-raised: color-mix(in srgb, var(--qc-surface-field) 82%, var(--qc-surface-panel));--qc-surface-hover: color-mix(in srgb, var(--qc-accent-teal) 6%, var(--qc-surface-field));--qc-control-border-hover: color-mix(in srgb, var(--qc-accent-teal) 30%, var(--qc-border-default));--qc-control-ink-hover: var(--qc-accent-teal-strong);--qc-shadow-rest: none;--qc-shadow-hover: 0 1px 2px rgb(var(--qc-ink-rgb) / .08);--qc-shadow-surface: 0 12px 28px rgb(var(--qc-ink-rgb) / .055);--qc-control-transition: var(--motion-control-transition)}:root[data-theme=dark]{--qc-primary-action-bg: linear-gradient(180deg, #24736b, #185c56);--qc-primary-action-bg-hover: linear-gradient(180deg, #2b8279, #1b665f);--qc-primary-action-border: rgb(var(--qc-accent-teal-strong-rgb) / .24);--qc-primary-action-border-hover: rgb(var(--qc-accent-teal-strong-rgb) / .32);--qc-primary-action-ink: #f6fbf9;--qc-primary-action-shadow: inset 0 1px 0 rgba(239, 246, 255, .075), 0 2px 0 rgba(3, 9, 17, .28);--qc-primary-action-shadow-hover: inset 0 1px 0 rgba(239, 246, 255, .095), 0 4px 0 rgba(3, 9, 17, .28);--qc-control-border-subtle: rgba(177, 194, 213, .16);--qc-control-border-strong: rgba(177, 194, 213, .26);--qc-surface-flat: rgba(21, 34, 51, .78);--qc-surface-raised: rgba(24, 38, 57, .88);--qc-surface-hover: rgba(33, 49, 68, .94);--qc-control-border-hover: rgba(177, 194, 213, .34);--qc-control-ink-hover: var(--qc-text-primary);--qc-shadow-rest: inset 0 1px 0 rgba(239, 246, 255, .055), 0 2px 0 rgba(3, 9, 17, .22);--qc-shadow-hover: inset 0 1px 0 rgba(239, 246, 255, .075), 0 4px 0 rgba(3, 9, 17, .25);--qc-shadow-surface: 0 14px 32px rgba(3, 9, 17, .22)}.primary-action,.learn-checkpoint-continue,.import-modal .primary-action{align-items:center;background:var(--qc-primary-action-bg);border:1px solid var(--qc-primary-action-border);border-radius:var(--qc-radius-control);box-shadow:var(--qc-primary-action-shadow);color:var(--qc-primary-action-ink);display:inline-flex;font-family:var(--font-ui);font-weight:var(--weight-semibold);gap:9px;justify-content:center;letter-spacing:0;min-height:42px;padding:0 15px;transition:var(--qc-control-transition)}.primary-action:hover:not(:disabled),.learn-checkpoint-continue:hover:not(:disabled),.import-modal .primary-action:hover:not(:disabled){background:var(--qc-primary-action-bg-hover);border-color:var(--qc-primary-action-border-hover);box-shadow:var(--qc-primary-action-shadow-hover);color:var(--qc-primary-action-ink);transform:translateY(-1px)}.primary-action:active:not(:disabled),.learn-checkpoint-continue:active:not(:disabled){box-shadow:var(--qc-primary-action-shadow);transform:translateY(1px)}.toolbar-command{align-items:center;background:transparent;border:0;border-radius:999px;box-shadow:none;color:var(--qc-text-secondary);display:inline-flex;font-family:var(--font-ui);font-weight:var(--weight-semibold);gap:8px;justify-content:center;min-height:38px;padding:0 10px;text-decoration:none;transition:var(--qc-control-transition);white-space:nowrap}.toolbar-command--icon{min-width:38px;padding-inline:8px}.toolbar-command:hover:not(:disabled),.toolbar-command[aria-expanded=true]{background:color-mix(in srgb,var(--qc-accent-teal) 8%,transparent);border-color:transparent;box-shadow:none;color:var(--qc-accent-teal-strong);transform:none}.toolbar-command:active:not(:disabled){background:color-mix(in srgb,var(--qc-accent-teal) 11%,transparent);transform:translateY(1px)}.toolbar-command svg:last-child{transition:transform .18s cubic-bezier(.16,1,.3,1)}.toolbar-command:hover:not(:disabled) svg:last-child,.toolbar-command[aria-expanded=true] svg:last-child{transform:translateY(1px)}.study-compact-nav .theme-toggle.compact{background:transparent;border:0;border-radius:999px;box-shadow:none;color:var(--qc-text-secondary);min-height:38px;padding:0 9px}.study-compact-nav .theme-toggle.compact:hover:not(:disabled){background:color-mix(in srgb,var(--qc-accent-teal) 8%,transparent);border-color:transparent;box-shadow:none;color:var(--qc-accent-teal-strong);transform:none}:root[data-theme=dark] .study-compact-nav .theme-toggle.compact{background:transparent;border-color:transparent;box-shadow:none;color:var(--qc-text-secondary)}:root[data-theme=dark] .study-compact-nav .theme-toggle.compact:hover:not(:disabled){background:rgb(var(--qc-accent-teal-strong-rgb) / .1);border-color:transparent;box-shadow:none;color:var(--qc-accent-teal-strong)}.zen-back-btn{align-items:center;background:transparent;border:0;border-radius:999px;box-shadow:none;color:var(--qc-text-secondary);display:inline-flex;font-family:var(--font-ui);font-weight:var(--weight-semibold);gap:8px;justify-content:center;min-height:44px;padding:0 20px;text-decoration:none;transition:var(--qc-control-transition);white-space:nowrap;cursor:pointer;justify-self:start}.zen-back-btn:hover:not(:disabled){background:var(--qc-surface-hover);color:var(--qc-control-ink-hover)}:root[data-theme=dark] .zen-back-btn{color:var(--control-muted)}:root[data-theme=dark] .zen-back-btn:hover:not(:disabled){background:var(--qc-surface-hover);color:var(--qc-control-ink-hover)}.ghost-action,.theme-toggle,.learn-checkpoint-actions button:not(.learn-checkpoint-continue),.import-modal button:not(.primary-action){align-items:center;background:var(--qc-surface-raised);border:1px solid var(--qc-control-border-strong);border-radius:var(--qc-radius-control);box-shadow:var(--qc-shadow-rest);color:var(--qc-text-secondary);display:inline-flex;font-family:var(--font-ui);font-weight:var(--weight-medium);gap:8px;justify-content:center;min-height:40px;transition:var(--qc-control-transition)}.ghost-action:hover:not(:disabled),.theme-toggle:hover:not(:disabled),.learn-checkpoint-actions button:not(.learn-checkpoint-continue):hover:not(:disabled),.import-modal button:not(.primary-action):hover:not(:disabled){background:var(--qc-surface-hover);border-color:var(--qc-control-border-hover);box-shadow:var(--qc-shadow-hover);color:var(--qc-control-ink-hover);transform:translateY(-1px)}:root[data-theme=dark] .ghost-action:hover:not(:disabled),:root[data-theme=dark] .theme-toggle:hover:not(:disabled),:root[data-theme=dark] .learn-checkpoint-actions button:not(.learn-checkpoint-continue):hover:not(:disabled),:root[data-theme=dark] .import-modal button:not(.primary-action):hover:not(:disabled){border-color:var(--qc-control-border-hover);color:var(--qc-control-ink-hover)}.danger-action{background:color-mix(in srgb,var(--qc-semantic-danger) 12%,var(--qc-surface-field));border:1px solid color-mix(in srgb,var(--qc-semantic-danger) 42%,var(--qc-border-default));border-radius:var(--qc-radius-control);box-shadow:var(--qc-shadow-rest);color:var(--qc-semantic-danger);font-weight:var(--weight-semibold)}.danger-action:hover:not(:disabled){background:color-mix(in srgb,var(--qc-semantic-danger) 18%,var(--qc-surface-field));border-color:color-mix(in srgb,var(--qc-semantic-danger) 56%,var(--qc-border-default));box-shadow:var(--qc-shadow-hover);color:var(--qc-semantic-danger)}.modal-content,.import-modal{background:var(--qc-surface-flat);border:1px solid var(--qc-control-border-subtle);border-radius:var(--qc-radius-surface);box-shadow:var(--qc-shadow-surface);position:relative;background:radial-gradient(ellipse at 2% 0%,color-mix(in srgb,var(--qc-accent-teal) 9%,transparent),transparent 22rem),linear-gradient(180deg,color-mix(in srgb,var(--qc-surface-field) 96%,var(--qc-surface-panel)),color-mix(in srgb,var(--qc-surface-panel) 98%,transparent));border:1px solid color-mix(in srgb,var(--qc-semantic-success) 34%,var(--qc-border-strong));border-radius:calc(var(--qc-primary-action-radius) + 4px);box-shadow:inset 0 1px color-mix(in srgb,var(--qc-surface-field) 82%,transparent),inset 0 0 0 1px color-mix(in srgb,var(--qc-semantic-success) 10%,transparent),0 3px color-mix(in srgb,var(--qc-semantic-success) 18%,var(--qc-text-primary) 10%),0 30px 90px #09121d42}.modal-content:before{content:none}.modal-content>*{position:relative}.modal-content button:not(.primary-action):not(.danger-action){background:color-mix(in srgb,var(--qc-surface-field) 88%,var(--qc-surface-panel));border:1px solid color-mix(in srgb,var(--qc-border-strong) 82%,transparent);border-radius:var(--qc-radius-control);box-shadow:var(--qc-shadow-rest);color:var(--qc-text-secondary);font-weight:var(--weight-medium)}.modal-content button:not(.primary-action):not(.danger-action):hover:not(:disabled){background:color-mix(in srgb,var(--qc-accent-teal) 7%,var(--qc-surface-field));border-color:color-mix(in srgb,var(--qc-accent-teal) 28%,var(--qc-border-default));box-shadow:var(--qc-shadow-hover);color:var(--qc-accent-teal-strong);transform:translateY(-1px)}.learn-checkpoint-disclosure,.learn-checkpoint-disclosure[open],.study-command-topic-filter{background:transparent;box-shadow:none}.learn-checkpoint-disclosure summary,.study-command-topic-bubbles{border-radius:var(--qc-radius-control)}.learn-checkpoint-next div span,.learn-checkpoint-disclosure summary strong,.study-command-topic-bubble,.study-command-topic-bubble-check,.study-command-topic-check{border-radius:999px}.checkpoint-bar-track{background:color-mix(in srgb,var(--study-progress-track) 88%,transparent);border:1px solid color-mix(in srgb,var(--qc-border-default) 52%,transparent);border-radius:999px;overflow:hidden}.checkpoint-bar-after{background:linear-gradient(90deg,var(--qc-accent-teal-strong),var(--qc-accent-teal));border-radius:inherit}.modal-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}:root[data-theme=dark] .danger-action{background:color-mix(in srgb,var(--qc-semantic-danger) 14%,var(--qc-surface-translucent));border-color:color-mix(in srgb,var(--qc-semantic-danger) 36%,var(--qc-border-default));color:var(--qc-semantic-danger)}:root[data-theme=dark] .modal-content,:root[data-theme=dark] .import-modal{background:var(--qc-surface-flat);border-color:var(--qc-control-border-subtle);box-shadow:var(--qc-shadow-surface)}:root[data-theme=dark] .modal-content{background:radial-gradient(circle at 0 0,rgb(var(--qc-accent-blue-rgb) / .04),transparent 22rem),linear-gradient(180deg,#182639f0,#111c2cf0);border-color:var(--qc-liquid-card-edge);box-shadow:inset 0 1px 0 var(--qc-liquid-top-highlight),inset 0 0 0 1px #b1c2d50b,0 3px #03091147,0 30px 90px #03091175}:root[data-theme=dark] .modal-content:before{content:none}:root[data-theme=dark] .modal-content button:not(.primary-action):not(.danger-action){background:#162334e6;border-color:#b1c2d533;box-shadow:inset 0 1px #eff6ff13,0 2px #0309113d;color:#c8d4e0}:root[data-theme=dark] .modal-content button:not(.primary-action):not(.danger-action):hover:not(:disabled){background:#213144f0;border-color:#b1c2d552;box-shadow:inset 0 1px #eff6ff18,0 4px #03091142;color:var(--qc-text-primary)}:root{--qc-menu-bg: #fbfcfd;--qc-menu-border: color-mix(in srgb, var(--qc-border-strong) 74%, transparent);--qc-menu-ink: var(--qc-text-primary);--qc-menu-muted: var(--qc-text-secondary);--qc-menu-icon: var(--qc-accent-teal-strong);--qc-menu-hover-bg: color-mix(in srgb, var(--qc-accent-teal) 9%, var(--qc-surface-field));--qc-menu-hover-ink: var(--qc-accent-teal-strong);--qc-menu-divider: color-mix(in srgb, var(--qc-border-default) 78%, transparent);--qc-menu-shadow: 0 18px 44px rgb(var(--qc-ink-rgb) / .14), 0 3px 10px rgb(var(--qc-ink-rgb) / .07)}:root[data-theme=dark]{--qc-menu-bg: #121f2f;--qc-menu-border: rgba(169, 187, 213, .22);--qc-menu-ink: #eef4f8;--qc-menu-muted: #9aabbc;--qc-menu-icon: var(--qc-accent-teal-strong);--qc-menu-hover-bg: rgb(var(--qc-accent-teal-strong-rgb) / .1);--qc-menu-hover-ink: var(--qc-accent-teal-strong);--qc-menu-divider: rgba(169, 187, 213, .16);--qc-menu-shadow: 0 24px 54px rgba(0, 0, 0, .46)}.qc-popover-wash{background:#0000000b;inset:0;pointer-events:none;position:fixed;z-index:990}.qc-popover-menu{backface-visibility:hidden;background:var(--qc-menu-bg);border:1px solid var(--qc-menu-border);border-radius:var(--qc-menu-radius, 12px);box-shadow:var(--qc-menu-shadow);color:var(--qc-menu-ink);display:flex;flex-direction:column;gap:var(--qc-menu-gap, 3px);min-width:var(--qc-menu-min-width, 180px);max-height:min(520px,calc(100vh - 24px));overflow:auto;padding:var(--qc-menu-padding, 6px);position:fixed;will-change:transform,opacity;z-index:1000}.qc-popover-menu.qc-popover-menu :where(button,.qc-menu-item){align-items:center;background:transparent;border:0;border-radius:var(--qc-menu-item-radius, 8px);box-shadow:none;color:var(--qc-menu-ink);cursor:pointer;display:flex;font-family:var(--font-ui);font-size:var(--qc-menu-item-font-size, .84rem);font-weight:var(--qc-menu-item-font-weight, var(--weight-semibold));gap:var(--qc-menu-item-gap, 9px);justify-content:flex-start;line-height:1.2;min-height:var(--qc-menu-item-min-height, 36px);padding:var(--qc-menu-item-padding, 8px 10px);text-align:left;transform:none;transition:background-color var(--motion-instant) linear,color var(--motion-instant) linear;white-space:nowrap;width:100%}.qc-popover-menu.qc-popover-menu :where(button,.qc-menu-item) svg{color:var(--qc-menu-icon);flex:0 0 auto}.qc-popover-menu.qc-popover-menu :where(button,.qc-menu-item):hover:not(:disabled){background:var(--qc-menu-hover-bg);border-color:transparent;box-shadow:none;color:var(--qc-menu-hover-ink);transform:none}.qc-popover-menu.qc-popover-menu :where(button,.qc-menu-item):hover:not(:disabled) svg{color:var(--qc-menu-hover-ink)}.qc-popover-menu.qc-popover-menu :where(button,.qc-menu-item):focus-visible{background:var(--qc-menu-hover-bg);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--qc-menu-icon) 28%,transparent);outline:none}.qc-popover-menu.qc-popover-menu :where(button,.qc-menu-item):disabled{cursor:default;opacity:.52}.qc-popover-menu.qc-popover-menu :where(.danger-action,.danger-menu-item){color:var(--qc-semantic-danger)}.qc-popover-menu.qc-popover-menu :where(.danger-action,.danger-menu-item) svg{color:var(--qc-semantic-danger)}.qc-popover-menu.qc-popover-menu :where(.danger-action,.danger-menu-item):hover:not(:disabled){background:color-mix(in srgb,var(--qc-semantic-danger) 10%,var(--qc-menu-bg));color:var(--qc-semantic-danger)}.qc-popover-menu.qc-popover-menu :where(.qc-menu-divider){background:var(--qc-menu-divider);height:1px;margin:4px 6px}.qc-popover-menu.qc-popover-menu .qc-menu-summary{border-bottom:1px solid var(--qc-menu-divider);display:grid;gap:3px;margin:0 2px 5px;padding:8px 8px 10px}.qc-popover-menu.qc-popover-menu .qc-menu-summary span{color:var(--qc-menu-muted);font-family:var(--font-code);font-size:.8rem;font-weight:var(--weight-semibold);letter-spacing:.1em;line-height:1;text-transform:uppercase}.qc-popover-menu.qc-popover-menu .qc-menu-summary strong{color:var(--qc-menu-ink);font-size:.9rem;font-weight:var(--weight-semibold);line-height:1.15;overflow:hidden;text-overflow:ellipsis}:root[data-theme=dark] .qc-popover-wash{background:#00000029}