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.12s}.lesson-complete-secondary:hover{color:var(--color-fg-1)}.prompt-help{margin-top:4px}.prompt-help-summary{cursor:pointer;color:var(--color-accent);-webkit-user-select:none;user-select:none;align-items:center;gap:6px;padding:4px 0;font-size:12px;font-weight:500;list-style:none;transition:color .12s;display:inline-flex}.prompt-help-summary::-webkit-details-marker{display:none}.prompt-help-summary:before{content:"+";font-family:var(--font-mono);color:var(--color-fg-3);text-align:center;width:10px;font-size:12px}.prompt-help[open] .prompt-help-summary:before{content:"−"}.prompt-help-summary:hover{color:var(--color-accent-hover)}.prompt-help-body{background:var(--color-bg-0);border:1px solid var(--color-line);border-radius:var(--radius);flex-direction:column;gap:10px;margin-top:10px;padding:12px;display:flex}.prompt-help-intro{color:var(--color-fg-2);font-size:12px;line-height:1.5}.prompt-template{background:var(--color-bg-1);border:1px solid var(--color-line);border-radius:var(--radius-sm);font-family:var(--font-mono);color:var(--color-fg-1);white-space:pre-wrap;-webkit-user-select:text;user-select:text;max-height:280px;margin:0;padding:12px;font-size:11.5px;line-height:1.55;overflow-y:auto}.switch{background:var(--color-bg-3);border:1px solid var(--color-line);cursor:pointer;border-radius:999px;flex-shrink:0;width:32px;height:18px;transition:background .16s,border-color .16s;display:inline-block;position:relative}.switch input{opacity:0;cursor:pointer;width:100%;height:100%;margin:0;position:absolute;top:0;left:0}.switch-thumb{background:var(--color-fg-2);border-radius:999px;width:14px;height:14px;transition:transform .18s cubic-bezier(.2,.8,.2,1),background .16s;position:absolute;top:1px;left:1px}.switch.on{background:var(--color-accent);border-color:#6660cb;border-color:lab(45.6495% 24.3531 -55.7663)}.switch.on .switch-thumb{background:var(--color-accent-fg);transform:translate(14px)}.auth-wrap{background:var(--color-bg-0);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.auth-card{background:var(--color-bg-1);border:1px solid var(--color-line-strong);border-radius:var(--radius-xl);width:100%;max-width:400px;box-shadow:var(--shadow-pop);animation:var(--animate-pop);overflow:hidden}.auth-head{border-bottom:1px solid var(--color-line);padding:24px 24px 18px}.auth-title{letter-spacing:-.01em;margin:0 0 4px;font-size:16px;font-weight:600}.auth-sub{color:var(--color-fg-3);margin:0;font-size:13px}.auth-body{flex-direction:column;gap:14px;padding:20px 24px;display:flex}.auth-foot{border-top:1px solid var(--color-line);background:#111315;background:lab(5.70218% -.215672 -1.8802);flex-direction:column;gap:10px;padding:14px 24px;display:flex}.auth-error{color:#f19e9b;color:lab(73.4843% 31.5621 15.1681);border-radius:var(--radius);background:#2b12124d;background:lab(9.11684% 12.6686 5.77491/.3);border:1px solid #562d2c80;border:1px solid lab(23.9967% 18.9908 9.26041/.5);padding:8px 12px;font-size:12.5px}@media (max-width:820px){.course-shell{grid-template-columns:1fr}.sidebar{border-right:0;border-bottom:1px solid var(--color-line);max-height:300px}.player-frame,.lesson-bar{width:100%}}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@keyframes fade{0%{opacity:0}to{opacity:1}}@keyframes pop{0%{opacity:0;transform:translateY(8px)scale(.98)}to{opacity:1;transform:none}}@keyframes pulse-dot{0%,to{box-shadow:0 0 #8a86ff8c;box-shadow:0 0 lab(60.6594% 24.9839 -61.1717/.55)}50%{box-shadow:0 0 0 6px #8a86ff00;box-shadow:0 0 0 6px lab(60.6594% 24.9839 -61.1717/0)}}@keyframes cta-pulse{0%,to{box-shadow:inset 0 1px #fff3,0 8px 24px -10px #8a86ff,0 0 #8a86ff80;box-shadow:inset 0 1px lab(100% 0 0/.2),0 8px 24px -10px lab(60.6594% 24.9839 -61.1717),0 0 lab(60.6594% 24.9839 -61.1717/.5)}50%{box-shadow:inset 0 1px #fff3,0 8px 24px -10px #8a86ff,0 0 0 6px #8a86ff00;box-shadow:inset 0 1px lab(100% 0 0/.2),0 8px 24px -10px lab(60.6594% 24.9839 -61.1717),0 0 0 6px lab(60.6594% 24.9839 -61.1717/0)}}@keyframes lesson-overlay-in{0%{opacity:0}to{opacity:1}}@keyframes lesson-card-in{0%{opacity:0;transform:translateY(14px)scale(.92)}to{opacity:1;transform:none}}@keyframes lesson-check-pop{0%{opacity:0;transform:scale(0)}55%{opacity:1;transform:scale(1.18)}80%{transform:scale(.96)}to{opacity:1;transform:scale(1)}}@keyframes lesson-check-ring{0%{opacity:.55;transform:scale(1)}to{opacity:0;transform:scale(1.35)}}