:root{--bg: #0f0f14;--surface: #181820;--surface-2: #22222c;--border: #2c2c38;--text: #f2f2f5;--muted: #9a9aa8;--accent: #df1340;--accent-bright: #ff4060;--good: #3ddc84;--ok: #f5bc52;--bad: #f2615c;color-scheme:dark}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg);color:var(--text);font:15px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;display:flex;flex-direction:column}a{color:var(--accent-bright)}.topbar{display:flex;align-items:center;gap:12px;padding:16px 24px;border-bottom:1px solid var(--border)}.brand{font-weight:800;font-size:20px;letter-spacing:-.01em}.brand span{color:var(--accent-bright)}.logo{width:28px;height:28px;display:block}.lang-switch{margin-left:auto;display:flex;border:1px solid var(--border);border-radius:999px;overflow:hidden}.lang-switch button{padding:4px 12px;border:0;border-radius:0;background:transparent;color:var(--muted);font-size:12px;font-weight:700;letter-spacing:.04em}.lang-switch button[aria-pressed=true]{background:var(--accent);color:#fff}.badge{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;padding:2px 8px;border-radius:999px;background:#ff406026;color:var(--accent-bright)}.intro{max-width:1280px;margin:0 auto;padding:24px 24px 0}.intro h1{margin:0 0 6px;font-size:26px;line-height:1.25;letter-spacing:-.01em}.intro .lead{margin:0;max-width:820px;color:var(--muted)}.info{max-width:1280px;margin:8px auto 0;padding:0 24px 32px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.info-block{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:20px 24px}.info-block h2{margin:0 0 10px;font-size:19px}.info-block h3{margin:16px 0 4px;font-size:15px}.info-block p{margin:0 0 10px;color:var(--muted)}.info-block ol,.info-block ul{margin:0;padding-left:20px;display:grid;gap:8px;color:var(--muted)}.info-block strong{color:var(--text)}.faq{grid-column:1 / 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.beta{color:inherit;opacity:.75;margin-left:0}.expr-overlay{position:absolute;top:12px;right:12px;z-index:2;width:min(250px,45%);display:flex;flex-direction:column;gap:8px;padding:10px 12px;border-radius:12px;background:#0a0a0eb8;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.1)}.expr-overlay[hidden]{display:none}.expr-overlay .expr-top span:first-child{font-size:26px}.expr-overlay .expr-row{grid-template-columns:82px 1fr;font-size:11px;color:#f2f2f5bf}.expr-overlay .hint{font-size:11px;color:#f2f2f599}.stats-overlay{position:absolute;top:52px;left:12px;z-index:2;max-width:calc(100% - 24px);padding:10px 12px;border-radius:12px;background:#0a0a0eb8;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.1)}.stats-overlay[hidden]{display:none}.stats-overlay pre{margin:0 0 6px;font:12px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--text);white-space:pre;overflow-x:auto}.stage-empty{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:24px;text-align:center;color:var(--muted)}.stage-empty[hidden]{display:none}.stage-empty p{max-width:380px;margin:0}.pulse{width:100%;height:80px;background:var(--surface);border:1px solid var(--border);border-radius:12px}.panel{display:flex;flex-direction:column;gap:16px}.card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:16px;display:flex;flex-direction:column;gap:10px}.bpm-row{display:flex;justify-content:space-between;align-items:flex-end;gap:12px}.bpm{display:flex;align-items:flex-end;gap:8px}.bpm-value{font-size:72px;font-weight:800;line-height:1;font-variant-numeric:tabular-nums}.bpm-unit{display:flex;flex-direction:column;align-items:center;gap:6px;padding-bottom:6px}.bpm small{color:var(--muted);font-weight:600}.beat{width:16px;height:16px;transform-origin:center;animation:beat var(--beat, 1s) ease-out infinite}.beat.cam{color:var(--accent-bright)}.beat.ref{color:#4cc9f0;width:18px;height:18px}.beat.idle{animation:none;opacity:.3}@keyframes beat{0%{transform:scale(1)}12%{transform:scale(1.32)}28%{transform:scale(1)}}@media(prefers-reduced-motion:reduce){.beat{animation:none}}.watch{display:flex;flex-direction:column;align-items:flex-end;gap:2px;padding-bottom:4px}.watch[hidden]{display:none}.watch-value{display:flex;align-items:center;gap:6px;font-size:36px;font-weight:800;line-height:1;color:#4cc9f0;font-variant-numeric:tabular-nums}.watch-label{font-size:12px;color:var(--muted)}.delta{margin-top:4px;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--muted);background:var(--surface-2)}.delta:empty{display:none}.delta[data-level=good]{color:var(--good);background:#3ddc8424}.delta[data-level=ok]{color:var(--ok);background:#f5bc5224}.delta[data-level=bad]{color:var(--bad);background:#f2615c24}.bpm-value.uncertain{color:var(--muted);opacity:.6}.diag summary{cursor:pointer;font-size:13px;font-weight:600;color:var(--muted)}.diag pre{margin:8px 0 0;font:12px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace;white-space:pre-wrap;color:var(--text)}.estimate-note{color:var(--muted);font-size:13px}.quality{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}.quality-bar{height:6px;border-radius:999px;background:var(--surface-2);overflow:hidden}.quality-bar div{height:100%;width:0;background:var(--bad);transition:width .3s,background .3s}.quality-bar div[data-level=ok]{background:var(--ok)}.quality-bar div[data-level=good]{background:var(--good)}.status{font-size:13px}.settle-bar{height:4px;border-radius:999px;background:var(--surface-2);overflow:hidden}.settle-bar[hidden]{display:none}.settle-bar div{height:100%;width:0;background:linear-gradient(90deg,var(--accent),#4cc9f0);transition:width .5s ease-out}label{font-size:13px;color:var(--muted);font-weight:600}select,input:not([type=checkbox]){width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);font:inherit}.card-title{font-size:15px;font-weight:700;color:var(--text)}.link-row{display:flex;gap:8px}.link-row input{flex:1;min-width:0;font:13px ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--text)}.link-row button{flex:none;min-width:92px}.hint-link{font-size:12px;align-self:flex-start}.toggle.compact{font-size:14px;margin-top:4px}.toggle{display:flex;align-items:center;gap:10px;color:var(--text);font-size:15px;cursor:pointer}.toggle input{width:18px;height:18px;accent-color:var(--accent)}.send-status{font-size:13px;color:var(--muted)}.send-status.error{color:var(--bad)}button{font:inherit;font-weight:600;border-radius:10px;padding:10px 16px;cursor:pointer;border:1px solid transparent}button:disabled{opacity:.45;cursor:not-allowed}button.primary{background:var(--accent);color:#fff}button.secondary{background:var(--surface-2);color:var(--text);border-color:var(--border)}button.link{background:none;padding:0;color:var(--muted);text-decoration:underline;font-weight:400;font-size:13px;align-self:flex-start}.footer-legal{display:inline-flex;gap:12px;margin-left:12px}.shared-card[hidden]{display:none}button.danger{background:var(--bad);color:#fff}.delete-dialog [hidden]{display:none}.delete-dialog h2{margin:0 0 12px}.delete-list{margin:0 0 12px;padding-left:18px;font-variant-numeric:tabular-nums}.delete-check{width:44px;height:44px;margin-bottom:12px;border-radius:999px;display:grid;place-items:center;font-size:24px;font-weight:800;color:var(--good);background:#3ddc8424}.shared-list{list-style:none;margin:0;padding:0;display:grid;gap:6px}.shared-list li{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:13px;font-variant-numeric:tabular-nums}.start-form{display:flex;flex-direction:column;gap:8px}.start-dialog h2{margin:0}.start-dialog p{margin:0 0 4px}.start-dialog .dialog-actions{margin-top:12px;flex-wrap:wrap}.start-icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:#4cc9f024;color:#4cc9f0}.start-icon svg{width:24px;height:24px}.share-summary{color:var(--text);margin:0 0 12px}.share-error{color:var(--bad);font-size:13px;margin:8px 0 0}.share-error[hidden]{display:none}.share-code{display:block;margin:8px 0 12px;padding:12px;border-radius:10px;background:var(--surface-2);font:700 22px/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.12em;text-align:center;-webkit-user-select:all;user-select:all}.share-dialog [hidden]{display:none}.footer{padding:16px 24px;font-size:12px;color:var(--muted);border-top:1px solid var(--border);text-align:center}dialog{max-width:480px;width:calc(100% - 32px);background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:16px;padding:24px}dialog::backdrop{background:#0009}dialog h2{margin:0 0 12px;font-size:20px}dialog ul{padding-left:18px;margin:0 0 12px;display:grid;gap:8px}dialog p{color:var(--muted);margin:0 0 20px}.dialog-actions{display:flex;justify-content:flex-end;gap:10px}.trend-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:12px 12px 8px}.trend-head{display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:4px 12px;font-size:13px;color:var(--muted);margin-bottom:6px}.legend{display:flex;gap:14px}.legend strong{color:var(--text);font-variant-numeric:tabular-nums}.dot{display:inline-block;width:10px;height:3px;border-radius:2px;margin-right:6px;vertical-align:middle}.dot.cam{background:#ff4060}.dot.ref{background:#4cc9f0}.dot.smooth{background:#f5bc52}.ref-row{display:flex;gap:8px}.ref-row input{flex:1;min-width:0}.ref-row button{flex:none;min-width:76px}.ref-row button[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:#fff}.ref-diff{font-variant-numeric:tabular-nums}.trend{width:100%;height:160px;display:block}.export-row{display:flex;justify-content:flex-end;align-items:center;gap:8px;margin-top:8px;font-size:13px;color:var(--muted)}.export-row span{margin-right:auto}button.small{padding:6px 12px;font-size:13px}.hint{margin:0;font-size:12px;color:var(--muted)}.beta{font-style:normal;font-size:10px;font-weight:700;text-transform:uppercase;color:var(--accent-bright);margin-left:4px}.expr-top{display:flex;align-items:center;gap:10px;font-weight:600}.expr-top span:first-child{font-size:32px;line-height:1}.expr-bars{display:grid;gap:4px}.expr-row{display:grid;grid-template-columns:96px 1fr;align-items:center;gap:8px;font-size:12px;color:var(--muted)}.expr-bar{height:6px;border-radius:999px;background:var(--surface-2);overflow:hidden}.expr-bar div{height:100%;width:0;background:var(--accent);transition:width .4s}@media(max-width:860px){.info{grid-template-columns:1fr;padding:0 16px 24px}.intro{padding:16px 16px 0}.intro h1{font-size:22px}.layout{grid-template-columns:1fr;padding:16px}.bpm-value{font-size:56px}}