:root{--page: #0d0d0d;--surface: #1a1a19;--ink: #ffffff;--ink-2: #c3c2b7;--muted: #898781;--hairline: #2c2c2a;--border: rgba(255, 255, 255, .1);--blue: #3987e5;--yellow: #c98500;--good: #0ca30c;--warning: #fab219;--serious: #ec835a}*{box-sizing:border-box;margin:0}html,body{background:var(--page);color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,sans-serif;-webkit-text-size-adjust:100%}.app{max-width:480px;margin:0 auto;padding:12px 12px calc(24px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:12px}.header h1{font-size:15px;font-weight:600;color:var(--ink-2);letter-spacing:.02em}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.stat{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:10px 12px}.stat:first-child{grid-column:span 3}.stat-wide{grid-column:span 2}.stat-sub{font-size:10px;color:var(--muted);margin-top:2px;font-variant-numeric:tabular-nums}.stat-value{font-size:22px;font-weight:600;font-variant-numeric:tabular-nums}.stat-hero{font-size:44px;line-height:1.1}.stat-label{font-size:11px;color:var(--muted);margin-top:2px}.stat-activity{font-size:15px;display:flex;align-items:center;gap:6px}.act-dot{width:10px;height:10px;border-radius:50%;flex:none;background:var(--muted)}.act-walking .act-dot{background:var(--good)}.act-turning .act-dot{background:var(--warning)}.act-irregular .act-dot{background:var(--serious)}.badge{font-size:10px;color:var(--muted);border:1px solid var(--hairline);border-radius:4px;padding:1px 4px;margin-left:6px;vertical-align:middle}.chart{background:var(--surface);border:1px solid var(--border);border-radius:10px;overflow:hidden}.chart-legend{display:flex;gap:14px;padding:8px 12px 0;font-size:11px;color:var(--ink-2)}.chart-legend .chip{display:inline-block;width:8px;height:8px;border-radius:2px;margin-right:4px}.chip-raw{background:var(--muted);opacity:.55}.chip-filt{background:var(--blue)}.chip-step{background:var(--yellow);border-radius:50%}.legend-toggle{margin-left:auto;display:flex;align-items:center;gap:5px;color:var(--muted);font-size:11px}.legend-toggle input{accent-color:var(--blue)}.chart-canvas{display:block;width:100%;height:200px}.path-canvas{display:block;width:100%;height:260px}.status-strip{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums;padding:0 2px}.controls{display:flex;flex-direction:column;gap:12px}.source-row{display:flex;gap:8px}.source-btn{flex:1;padding:10px 0;font-size:13px;color:var(--ink-2);background:var(--surface);border:1px solid var(--border);border-radius:8px}.source-btn.active{border-color:var(--blue);color:var(--ink)}.source-btn:disabled{opacity:.45}.start-btn{padding:16px 0;font-size:17px;font-weight:600;color:#fff;background:var(--blue);border:none;border-radius:10px}.start-btn.running{background:#d03b3b}.start-btn:disabled{opacity:.45}.hint{font-size:12px;color:var(--warning);line-height:1.45}.param-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.param-grid label,.slider-label,.check-label,.file-label{font-size:11px;color:var(--muted);display:flex;flex-direction:column;gap:4px}.param-grid input{width:100%;padding:8px;font-size:14px;color:var(--ink);background:var(--surface);border:1px solid var(--border);border-radius:6px}.slider-label input{width:100%;accent-color:var(--blue)}.replay-box{display:flex;flex-direction:column;gap:8px;padding:12px;background:var(--surface);border:1px dashed var(--hairline);border-radius:10px}.file-label{color:var(--ink-2);font-size:13px}.file-label input{font-size:12px;color:var(--muted)}.check-label{flex-direction:row;align-items:center;gap:8px;font-size:12px;color:var(--ink-2)}.check-label input{accent-color:var(--blue)}.recorder{display:flex;align-items:center;justify-content:space-between;gap:12px}.recorder-info{font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}.download-btn{padding:10px 16px;font-size:13px;color:var(--ink-2);background:var(--surface);border:1px solid var(--border);border-radius:8px}.download-btn:disabled{opacity:.45}