:root{color-scheme:dark;--bg: #0b121c;--bubble-in: #1b2634;--bubble-out: #1f5f52;--accent: #4ad8c4;--text: #e8edf2;--text-dim: #8a97a6;--danger: #d8574a}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}#app{display:flex;flex-direction:column;height:100dvh;max-width:560px;margin:0 auto;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}.topbar{position:relative;display:flex;justify-content:flex-end;padding:8px 12px;border-bottom:1px solid #1c2836;flex-shrink:0}.menu-btn{background:none;border:none;color:var(--text-dim);font-size:1.4rem;line-height:1;padding:6px 10px;-webkit-tap-highlight-color:transparent}.menu-panel{position:absolute;top:100%;right:12px;z-index:10;background:var(--bubble-in);border:1px solid #2a3949;border-radius:12px;padding:12px;width:min(320px,80vw);display:flex;flex-direction:column;gap:8px;box-shadow:0 8px 24px #0006}.menu-panel[hidden]{display:none}.menu-panel hr{border:none;border-top:1px solid #2a3949;width:100%;margin:4px 0}.save-code{width:100%;min-height:60px;resize:vertical;background:#0e1620;color:var(--text);border:1px solid #2a3949;border-radius:8px;padding:8px;font-size:.8rem;font-family:monospace}.menu-status{font-size:.8rem;color:var(--text-dim);min-height:1em}.msg-typing{display:flex;align-items:center;gap:4px;padding:12px 14px}.typing-dot{width:6px;height:6px;border-radius:50%;background:var(--text-dim);animation:typing-bounce 1s infinite ease-in-out}.typing-dot:nth-child(2){animation-delay:.15s}.typing-dot:nth-child(3){animation-delay:.3s}@keyframes typing-bounce{0%,60%,to{transform:translateY(0);opacity:.5}30%{transform:translateY(-4px);opacity:1}}.wait-box{display:flex;flex-direction:column;gap:8px;align-items:center;padding:8px 0 4px}.wait-label{color:var(--text-dim);font-size:.85rem}.chat-log{flex:1;overflow-y:auto;padding:16px 12px;display:flex;flex-direction:column;gap:8px;-webkit-overflow-scrolling:touch}.msg{max-width:80%;padding:10px 14px;border-radius:16px;line-height:1.35;font-size:.95rem;white-space:pre-wrap;animation:appear .18s ease-out}.msg-in{align-self:flex-start;background:var(--bubble-in);border-bottom-left-radius:4px}.msg-out{align-self:flex-end;background:var(--bubble-out);border-bottom-right-radius:4px}.msg-system{align-self:center;background:none;color:var(--text-dim);font-size:.8rem;text-align:center;max-width:100%}.msg-speaker{display:block;font-size:.72rem;color:var(--accent);margin-bottom:2px;font-weight:600}.msg-icon{display:block;font-size:1.8rem;line-height:1;margin-bottom:6px}.msg-table{margin-top:8px;border-collapse:collapse;font-size:.85rem;width:100%}.msg-table th,.msg-table td{border:1px solid #2a3949;padding:4px 8px;text-align:left}.msg-table th{color:var(--accent);font-weight:600;background:#17232f}@keyframes appear{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.controls{padding:10px 12px calc(12px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:8px;border-top:1px solid #1c2836}.choice-btn,.quiz-option,.submit-btn{width:100%;padding:12px 14px;border-radius:12px;border:1px solid #2a3949;background:var(--bubble-in);color:var(--text);font-size:.95rem;text-align:left;-webkit-appearance:none;-moz-appearance:none;appearance:none;-webkit-tap-highlight-color:transparent}.choice-btn:active,.quiz-option:active,.submit-btn:active{background:#263444}.quiz-option{display:flex;align-items:center;gap:10px}.quiz-option[aria-pressed=true]{border-color:var(--accent);background:#17332f}.quiz-check{width:18px;height:18px;border-radius:5px;border:2px solid var(--text-dim);flex-shrink:0}.quiz-option[aria-pressed=true] .quiz-check{border-color:var(--accent);background:var(--accent)}.submit-btn{background:var(--accent);color:#05221d;font-weight:600;text-align:center;border:none}.submit-btn:disabled{opacity:.5}.end-note{text-align:center;color:var(--text-dim);padding:12px;font-size:.85rem}.episode-end{display:flex;flex-direction:column;align-items:center;gap:10px;padding:4px 12px 8px}.episode-end .end-note{padding:0;font-size:1rem;color:var(--accent);font-weight:600}.episode-end .wait-label{text-align:center}