:root{--bg: #0b0d16;--surface: #151827;--surface-2: #1d2133;--text: #e6e9f2;--muted: #9aa3bd;--line: #2a2f45;--accent: #7c9cf5;--pass: #4ec98a;--warn: #e8b552;--fail: #e8697d;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;-webkit-font-smoothing:antialiased;overscroll-behavior:none}body{min-height:100dvh;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}button{font:inherit;color:var(--text);background:var(--surface-2);border:1px solid var(--line);border-radius:10px;padding:10px 14px;cursor:pointer;touch-action:manipulation}button:disabled{opacity:.45;cursor:not-allowed}button.danger{border-color:#5a2a35;color:#f0a0ae}.loading{padding:32px 16px;color:var(--muted)}.hidden{display:none!important}.muted{color:var(--muted);font-size:14px}.setup{max-width:560px;margin:0 auto;padding:24px 16px 64px}.hd h1{margin:0;font-size:26px;letter-spacing:-.02em}.hd .sub{margin:6px 0 24px;color:var(--muted);font-size:15px;line-height:1.45}h2{font-size:15px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:28px 0 10px}.install{background:var(--surface);border:1px solid var(--accent);border-radius:12px;padding:16px}.install h2{margin-top:0;color:var(--accent)}.install p{line-height:1.5;font-size:15px;margin:0 0 12px}.install ol{margin:0;padding-left:20px;line-height:1.7}.install-btn{margin-top:12px;background:var(--accent);color:#0b0d16;border:none;font-weight:600}.checks{list-style:none;margin:0;padding:0}.check{display:flex;gap:12px;padding:12px;border:1px solid var(--line);border-radius:10px;margin-bottom:8px;background:var(--surface)}.check .mark{flex:0 0 22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:700}.check.pass .mark{background:#4ec98a26;color:var(--pass)}.check.warn .mark{background:#e8b55226;color:var(--warn)}.check.fail .mark{background:#e8697d26;color:var(--fail)}.check-label{font-weight:600;font-size:15px}.check-detail{color:var(--muted);font-size:13.5px;line-height:1.45;margin-top:3px}.start-btn{width:100%;margin-top:20px;padding:16px;font-size:17px;font-weight:600;background:var(--accent);color:#0b0d16;border:none;border-radius:12px}.start-btn:disabled{background:var(--surface-2);color:var(--muted)}.blocked-note{color:var(--muted);font-size:13.5px;line-height:1.5;margin-top:10px}.tips ul{margin:0;padding-left:20px;line-height:1.65;font-size:14.5px;color:var(--muted)}.tips li{margin-bottom:6px}.session{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px;margin-bottom:12px}.session-hd{display:flex;justify-content:space-between;align-items:baseline;gap:10px;flex-wrap:wrap}.row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.files{list-style:none;margin:12px 0 0;padding:0}.files li{margin-bottom:4px}.file-link{background:none;border:none;padding:4px 0;color:var(--accent);font-size:13.5px;text-align:left;text-decoration:underline}body.night{background:#000}body.night #app{min-height:100dvh}.night-wrap{min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:24px;transition:opacity .4s ease}.night-wrap.dimmed{opacity:.22}.clock{font-size:56px;font-variant-numeric:tabular-nums;font-weight:200;color:#4a5068;letter-spacing:-.02em}.elapsed{font-size:15px;font-variant-numeric:tabular-nums;color:#2f3448}.meter{width:min(220px,60vw);height:3px;background:#16192a;border-radius:2px;overflow:hidden}.meter-fill{height:100%;width:0;background:#39405c;transition:width .2s linear}.night-stats{font-size:12px;color:#262b3d;font-variant-numeric:tabular-nums}.night-warn{font-size:12.5px;color:#8a5a45;text-align:center;max-width:280px;line-height:1.5}.stop-btn{margin-top:28px;background:none;border:1px solid #23283a;color:#3d4358;font-size:14px;padding:12px 24px}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;animation:none!important}}