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.answer-marker{color:var(--teal-light)}.answer-text{font-size:14px;color:var(--text-1);line-height:1.5}.flashcard-container{perspective:1200px}.flashcard{width:100%;aspect-ratio:1.618;position:relative;transform-style:preserve-3d;transition:transform .55s cubic-bezier(.4,0,.2,1);cursor:pointer}.flashcard.flipped{transform:rotateY(180deg)}.flashcard-face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:12px;border:1px solid var(--border-default);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-10);text-align:center;box-shadow:var(--shadow-md)}.flashcard-front{background:var(--surface-1)}.flashcard-back{background:var(--surface-2);transform:rotateY(180deg)}.chat-message{display:flex;flex-direction:column;gap:var(--space-1);margin-bottom:var(--space-4)}.chat-message.user{align-items:flex-end}.chat-message.assistant{align-items:flex-start}.chat-bubble{max-width:68%;padding:var(--space-3) var(--space-4);border-radius:8px;font-size:14px;line-height:1.65}.chat-bubble.user{background:var(--teal-dim);border:1px solid var(--teal-muted);color:var(--text-1)}.chat-bubble.assistant{background:var(--surface-2);border:1px solid var(--border-subtle);color:var(--text-1)}.chat-time{font-size:10px;color:var(--text-3)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes blink{0%,to{opacity:1}50%{opacity:0}}.animate-fade{animation:fadeIn .35s ease both}.animate-up{animation:slideUp .4s ease both}.delay-1{animation-delay:60ms}.delay-2{animation-delay:.12s}.delay-3{animation-delay:.18s}.delay-4{animation-delay:.24s}.delay-5{animation-delay:.3s}.delay-6{animation-delay:.36s}.skeleton{background:linear-gradient(90deg,var(--surface-3) 25%,var(--surface-4) 50%,var(--surface-3) 75%);background-size:200% 100%;animation:shimmer 1.6s ease infinite;border-radius:4px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-2,.grid-3{display:grid;gap:var(--space-4)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.grid-4,.grid-5{display:grid;gap:var(--space-4)}.grid-5{grid-template-columns:repeat(5,1fr)}.text-teal{color:var(--teal)}.text-gold{color:var(--gold-mid)}.text-coral{color:var(--coral)}.text-muted{color:var(--text-2)}.text-dim{color:var(--text-3)}.text-success{color:var(--success)}.text-error{color:var(--error)}[data-theme=dark] .text-teal{color:var(--teal-light)}[data-theme=dark] .text-gold{color:var(--gold-light)}.font-display{font-family:var(--font-display)}.font-mono{font-family:var(--font-mono)}.w-full{width:100%}.label{font-size:10px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--text-3)}.activity-bar{flex:1;border-radius:3px 3px 0 0;transition:height .5s cubic-bezier(.4,0,.2,1);min-width:4px;background:var(--surface-4)}.activity-bar.active{background:var(--teal)}.activity-bar.today{background:var(--gold-mid)}.divider{height:1px;background:var(--border-subtle);border:none;margin:var(--space-5) 0}@media (max-width:1100px){:root{--sidebar-width:220px}.page{padding:var(--space-6) var(--space-6)}.grid-4{grid-template-columns:repeat(2,1fr)}.grid-5{grid-template-columns:repeat(3,1fr)}}@media (max-width:768px){.app-shell{grid-template-columns:1fr}.app-sidebar{display:none}.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}.continue-card{flex-direction:column}}