:root{--surface: #f6f7f2;--ink: #1d3026;--muted: #627166;--history-ink: #4c6052;--accent: #28664b;--accent-hover: #1d513a;--on-accent: #ffffff;--soft: #e5ecdf;--line: #d9e0d5;--danger: #a33330;--on-danger: #ffffff;--danger-soft: #f9ece7}:root[data-theme=dark]{--surface: #151c19;--ink: #eef3eb;--muted: #a0b0a4;--history-ink: #b2c0b5;--accent: #a9d3a9;--accent-hover: #bde7bc;--on-accent: #173122;--soft: #27382c;--line: #354339;--danger: #ffaea7;--on-danger: #3b1613;--danger-soft: #392624}*{box-sizing:border-box}html{min-width:280px;scroll-behavior:smooth;background:var(--surface);color:var(--ink);color-scheme:light}html[data-theme=dark]{color-scheme:dark}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe 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i:nth-child(4){animation-delay:-.2s}h1{font-size:clamp(42px,5.2vw,68px);letter-spacing:-.045em;font-weight:550;line-height:1.07;margin:0}.empty-state>p{font-size:17px;color:var(--muted);line-height:1.6;max-width:365px;margin:24px 0 0}.empty-note{margin-top:33px;color:var(--muted);font-size:12px}.error-message{border-left:3px solid var(--danger);padding:12px 16px;margin-top:24px;background:var(--danger-soft);font-size:15px;border-radius:0 8px 8px 0}.error-message p{margin:6px 0 0;line-height:1.55}.control-dock{position:sticky;bottom:0;z-index:2;background:var(--surface);border-top:1px solid var(--line);padding:23px max(7vw,env(safe-area-inset-right)) max(18px,env(safe-area-inset-bottom)) 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0;color:var(--muted)}.transcript{margin-top:35px;overflow-anchor:none}.transcript-list{list-style:none;padding:0;margin:0;position:relative}.utterance{padding:27px 0 31px}.utterance:first-child{padding-top:0}.utterance-label{display:flex;align-items:center;gap:12px;margin-bottom:14px;color:var(--muted);font-size:12px;line-height:1.5}.utterance-current .utterance-label{color:var(--accent)}.utterance p{margin:0;overflow-wrap:anywhere;white-space:pre-wrap;font-size:clamp(28px,4.5vw,var(--text-size));font-size:var(--text-size);font-weight:500;letter-spacing:-.022em;line-height:1.3}.utterance-current{animation:appear .22s ease-out}.utterance-history p{font-size:max(24px,calc(var(--text-size) * .78));color:var(--history-ink);font-weight:400}.pending-text{color:var(--muted)}.text-cursor{display:inline-block;width:3px;height:.8em;margin-left:8px;background:var(--accent);border-radius:2px;animation:pulse 1.2s 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output{color:var(--accent);white-space:nowrap}input[type=range]{width:100%;height:44px;margin:10px 0 0;accent-color:var(--accent);cursor:pointer}.font-preview{overflow-wrap:anywhere;font-weight:500;line-height:1.15;letter-spacing:-.02em;margin:6px 0 0}.theme-options{clear:both;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.theme-choice{display:flex;align-items:center;justify-content:center;gap:7px;min-height:48px;border:1px solid var(--line);border-radius:9px;font-size:13px;cursor:pointer;position:relative}.theme-choice.selected{border-color:var(--accent);background:var(--soft);color:var(--accent)}.theme-choice input{position:absolute;opacity:0;width:100%;height:100%;margin:0;cursor:pointer}.theme-choice:focus-within{outline:2px solid var(--accent);outline-offset:3px}.setting-help{font-size:13px;line-height:1.5;color:var(--muted);margin:6px 0 0}.setting-language{display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:14px}.setting-language 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