@import "https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700&family=Noto+Sans:wght@400;500;600;700&display=swap";:root{color:#1a2332;font-synthesis:none;text-rendering:optimizelegibility;--brand:#1f9d55;--brand-deep:#16803f;--brand-soft:#e8f5ec;--leaf:#1f9d55;--accent:#e8a317;--ink:#1a2332;--muted:#5b6b7c;--line:#e2eaf2;--paper:#fff;--canvas:#c8e8f7;--stage-bg:#e8f0ea;--title:#1e3a5f;--danger:#c45a4a;--display:"Be Vietnam Pro", "Noto Sans", sans-serif;--safe-bottom:env(safe-area-inset-bottom,0px);--radius:28px;--radius-sm:24px;--shadow:0 14px 40px #1a23321f;font-family:Be Vietnam Pro,Noto Sans,Segoe UI,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;overflow:hidden}body{background:var(--canvas);min-width:320px;margin:0}button,textarea{font:inherit}button{-webkit-tap-highlight-color:transparent}.classroom-shell{height:100vh;position:relative;overflow:hidden}.classroom-bg{z-index:0;pointer-events:none;background:linear-gradient(#bfe6f8 0%,#d7f0e4 62%,#c5e6c8 100%);position:absolute;inset:0;overflow:hidden}.scene-svg{width:100%;height:100%;display:block;position:absolute;inset:0}.scene-blades{transform-origin:0 0;animation:12s linear infinite spinBlades}.scene-explore{width:56px;height:56px;position:absolute;bottom:10px;left:50%;transform:translate(-50%)}.scene-explore svg{filter:drop-shadow(0 4px 8px #1a23322e);width:100%;height:100%}.classroom-frame{z-index:1;width:calc(100% - 36px);height:100%;padding:18px 0 calc(22px + var(--safe-bottom));flex-direction:column;gap:16px;min-height:0;margin:0 auto;display:flex;position:relative}.brand-bar{flex:none;justify-content:space-between;align-items:center;gap:12px;min-height:52px;padding:0 2px;display:flex}.brand-lockup{min-width:0;color:inherit;align-items:center;gap:12px;text-decoration:none;display:inline-flex}.brand-logo{object-fit:contain;background:#fff;border-radius:50%;flex:none;width:66px;height:66px;box-shadow:0 2px 8px 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12px;font-size:12px;font-weight:600;display:inline-flex}.pill-label{text-overflow:ellipsis;overflow:hidden}.session-pill.state-thinking{color:var(--brand-deep);background:var(--brand-soft);border-color:#1f9d5547}.session-pill.state-speaking{color:#1d7a38;background:#2ea44f1a;border-color:#2ea44f4d}.session-pill.state-praise{color:#9a6700;background:#d299221f;border-color:#d2992259}.session-pill.state-error{color:var(--danger);background:#c45a4a14;border-color:#c45a4a4d}.status-dot{background:var(--leaf);border-radius:50%;width:7px;height:7px}.session-pill.state-thinking .status-dot{background:var(--brand);animation:1.2s ease-in-out infinite pulseDot}.session-pill.state-error .status-dot{background:var(--danger)}.reset-button{border:1px solid var(--line);background:var(--paper);height:36px;color:var(--muted);cursor:pointer;border-radius:999px;align-items:center;gap:6px;padding:0 12px;font-size:13px;font-weight:600;transition:border-color .15s,color .15s,background 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p{color:var(--muted);max-width:280px;margin:6px 0 0;font-size:13px;line-height:1.5}.quest-welcome .quest-suggestions{width:100%}.quest-welcome .suggestion-chip{animation:.35s both chipIn}.quest-dock{border-top:1px solid var(--line);background:#f7faf8;flex-direction:column;flex:none;gap:8px;padding:14px 18px 16px;display:flex}.composer-tip{color:#8a9aa6;align-items:flex-start;gap:6px;margin:0;padding:0 4px;font-size:12px;line-height:1.4;display:flex}.composer-tip svg{width:14px;height:14px;color:var(--accent);flex:none;margin-top:1px}.composer{background:#fff;border:1px solid #dfe8e2;border-radius:16px;flex-direction:column;align-items:stretch;gap:10px;padding:12px 12px 10px;transition:border-color .15s,box-shadow .15s;display:flex}.composer:focus-within,.composer.is-listening{border-color:var(--brand);box-shadow:0 0 0 3px #1f9d551f}.composer textarea{resize:none;min-width:0;min-height:56px;max-height:120px;color:var(--ink);scrollbar-width:thin;scrollbar-color:#1f9d554d 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