@import"https://fonts.googleapis.com/css2?family=Baloo+2:wght@700;800&family=Be+Vietnam+Pro:wght@400;500;600;700&display=swap";:root{color-scheme:light dark;--teal: #0e7c78;--teal-deep: #0a5f5c;--teal-soft: #e2f3f1;--teal-mid: #bfe6e1;--coral: #ff7a59;--coral-deep: #e85a38;--coral-soft: #ffe9e2;--sun: #f5b93f;--sun-soft: #fdf0d3;--bg: #f4f8f7;--surface: #ffffff;--surface-2: #eef4f3;--ink: #17302c;--ink-2: #4c625c;--ink-3: #84968f;--line: #dce8e5;--good: #1d9d6c;--good-soft: #e0f4ea;--bad: #e0483e;--bad-soft: #fde7e4;--shadow: 0 10px 30px rgba(14, 80, 75, .1);--shadow-sm: 0 4px 14px rgba(14, 80, 75, .08);--tabbar: rgba(255, 255, 255, .92)}[data-theme=dark]{--teal: #2fb3ab;--teal-deep: #5ec9c2;--teal-soft: #173936;--teal-mid: #21514c;--coral: #ff8a6b;--coral-deep: #ffa187;--coral-soft: #40241c;--sun: #f7c65c;--sun-soft: #3d3013;--bg: #0d1514;--surface: #16211f;--surface-2: #1c2a28;--ink: #e8f2ef;--ink-2: #a9beb8;--ink-3: #71867f;--line: #263734;--good: #3ecf8e;--good-soft: #143527;--bad: 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button.on{background:var(--teal);color:#fff}.dialogue-card{padding:18px}.dialogue-line{display:flex;gap:11px;align-items:flex-start;padding:9px 0;border-bottom:1px dashed var(--line);line-height:1.55}.dialogue-line:last-child{border-bottom:0}.speaker{flex:0 0 38px;width:38px;height:38px;display:grid;place-items:center;background:var(--teal-soft);color:var(--teal-deep);border-radius:50%;font-weight:800;font-size:13px;font-family:"Baloo 2",sans-serif}.bubble{flex:1;background:var(--surface);border:1px solid var(--line);border-radius:6px 18px 18px;padding:11px 15px;box-shadow:var(--shadow-sm)}.bubble-speaker{display:block;font-size:13px;color:var(--teal-deep);margin-bottom:2px;font-weight:700}.bubble-vi{color:var(--ink-2);font-size:14px;margin-top:2px}.quiz-card{padding:22px}.quiz-type{color:var(--ink-2);font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.4px;margin-bottom:4px}.quiz-prompt{font-family:"Baloo 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