:root{--bg: #14161a;--panel: #1e2127;--text: #e8e9ec;--muted: #8b909a;--primary: #4f8cff;--accent: #ff7a45;--border: #2c3038;color-scheme:dark;font-family:system-ui,-apple-system,Segoe UI,Noto Sans Thai,sans-serif}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center;background:var(--bg);color:var(--text);padding:16px}button{font:inherit;cursor:pointer}.metronome{width:100%;max-width:420px;background:var(--panel);border:1px solid var(--border);border-radius:20px;padding:28px 24px;display:flex;flex-direction:column;gap:24px}.top{display:flex;align-items:center;justify-content:space-between;gap:12px}.segmented.mode-switch button{width:auto;padding:4px 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.tip{left:auto;right:0;transform:none}.bar-axis{display:flex;justify-content:space-between;margin-top:4px;font-size:.7rem;color:var(--muted)}.recent{display:flex;flex-direction:column;gap:8px}.recent-head{display:flex;align-items:center;justify-content:space-between;font-size:.85rem;color:var(--muted)}.empty-msg{margin:0;font-size:.85rem;color:var(--muted)}.tag.done{color:#4cc38a;border-color:#4cc38a}.hint{margin:0;text-align:center;font-size:.8rem;color:var(--muted)}