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5px;border-radius:6px;background:var(--surface-2)}.md-code{margin:0;padding:10px 12px;border-radius:10px;background:var(--surface-2);overflow-x:auto;font-size:.85rem}.cite{display:inline-flex;align-items:center;gap:3px;margin:0 2px;padding:0 7px;border-radius:999px;background:var(--info-bg);color:var(--info);font-size:.78rem;font-weight:500;line-height:1.6;vertical-align:1px;white-space:nowrap}.typing{display:inline-flex;gap:4px;padding:6px 0}.typing i{width:7px;height:7px;border-radius:50%;background:var(--text-3);animation:blink 1.2s infinite ease-in-out}.typing i:nth-child(2){animation-delay:.2s}.typing i:nth-child(3){animation-delay:.4s}@keyframes blink{0%,80%,to{opacity:.25}40%{opacity:1}}.composer{position:fixed;z-index:9;left:12px;right:12px;bottom:calc(var(--nav-h) + 10px + env(safe-area-inset-bottom));max-width:736px;margin:0 auto;display:flex;align-items:flex-end;gap:6px;padding:6px 6px 6px 14px;background:var(--surface);border:1px solid var(--border);border-radius:24px;box-shadow:0 6px 20px #0000001a}.composer textarea{flex:1;resize:none;padding:8px 0!important;background:transparent!important;border:none!important;max-height:160px;line-height:1.4}.composer .send{background:var(--accent);color:var(--accent-ink)}.composer .send:disabled{opacity:.3}@media (min-width: 900px){.composer{left:260px;right:40px;bottom:20px}}.pick-row{display:flex;align-items:center;gap:10px;padding:8px 10px}.pick-row .tick{background:var(--surface)}.pick-row .tick.on{background:var(--accent)}.pick-main{flex:1;min-width:0;display:flex;align-items:center;gap:12px;text-align:left;color:var(--text-3)}.ai-icon.warn{background:var(--warning-bg);color:var(--warning)}.model-pick{display:flex;flex-direction:column;align-items:flex-start;gap:2px;padding:12px 14px;border-radius:var(--radius-sm);background:var(--surface-2)}.model-progress{display:flex;flex-direction:column;gap:4px}.mode-switch{align-self:flex-start}.mode-switch button{min-width:96px}.unreadable summary{cursor:pointer}.unreadable ul{margin:6px 0 0;padding-left:18px}.model-option{display:flex;align-items:center;padding:0;border:2px solid transparent;background:var(--surface-2)!important;box-shadow:none}.model-option.on{border-color:var(--accent)}.model-main{flex:1;display:flex;align-items:center;gap:12px;padding:12px 14px;text-align:left}.badge.fit{align-self:flex-start;margin-top:2px}.quiz{display:flex;flex-direction:column;gap:12px}.quiz-head{display:flex;align-items:baseline;justify-content:space-between}.quiz-card{display:flex;flex-direction:column;gap:10px}.quiz-q{font-size:1.05rem;line-height:1.35}.quiz-options{display:flex;flex-direction:column;gap:8px}.quiz-option{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);background:var(--surface-2);border:2px solid transparent;text-align:left;transition:background .15s,border-color .15s}.quiz-option:not(:disabled):active{transform:scale(.99)}.quiz-option:disabled{cursor:default;opacity:1}.quiz-option.right{background:var(--good-bg);border-color:var(--good);color:var(--good)}.quiz-option.wrong{background:var(--critical-bg);border-color:var(--critical);color:var(--critical)}.quiz-option.dim{opacity:.55}.quiz-letter{display:grid;place-items:center;width:26px;height:26px;flex:none;border-radius:50%;background:var(--surface);font-size:.8rem;font-weight:600;color:var(--text-2)}.quiz-feedback{padding:10px 12px;border-radius:var(--radius-sm);font-size:.92rem}.quiz-feedback.good{background:var(--good-bg)}.quiz-feedback.bad{background:var(--critical-bg)}.quiz-feedback.good strong{color:var(--good)}.quiz-feedback.bad strong{color:var(--critical)}.quiz-source{margin-top:6px;font-size:.82rem;color:var(--text-2)}.quiz-pending{display:flex;align-items:center;gap:10px}.quiz-result{text-align:center;display:flex;flex-direction:column;gap:4px}