:root{--bg: #0b0a0c;--panel: #161316;--panel-2: #221c1f;--text: #ede8e4;--muted: #a89f9a;--accent: #dc2626;--accent-hover: #ef4444;--amber: #f59e0b;--danger: #ef4444;--ok: #10b981;--warn: #f59e0b;--line: #3a2c2c}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif;color:var(--text);background:repeating-linear-gradient(-45deg,rgba(255,255,255,.012) 0 2px,transparent 2px 14px),radial-gradient(1100px 500px at 50% -10%,#1d1114 0%,transparent 60%),var(--bg);accent-color:var(--accent)}.brand,h2{font-family:Impact,Haettenschweiler,Arial Narrow Bold,system-ui,sans-serif;text-transform:uppercase;letter-spacing:.06em;font-weight:400}.brand{background:linear-gradient(180deg,#fde68a 0%,var(--amber) 35%,var(--accent) 100%);-webkit-background-clip:text;background-clip:text;color:transparent;text-shadow:0 2px 14px rgba(220,38,38,.35)}button{cursor:pointer;border:none;border-radius:5px;padding:8px 14px;font-size:14px;font-weight:700;color:var(--text);background:var(--panel-2)}button:disabled{opacity:.5;cursor:not-allowed}button.primary{background:linear-gradient(180deg,var(--accent-hover),var(--accent));color:#fff;text-transform:uppercase;letter-spacing:.05em;box-shadow:0 0 0 1px #7f1d1d,0 3px 10px #dc262640}button.primary:hover:not(:disabled){box-shadow:0 0 0 1px #991b1b,0 3px 16px #ef444480}button.ghost{background:transparent;border:1px solid var(--line)}button.danger{background:transparent;border:1px solid #4b1d1d;color:#fca5a5}input,select{background:var(--panel-2);border:1px solid var(--line);border-radius:5px;color:var(--text);padding:8px 10px;font-size:14px}input:focus,select:focus{outline:2px solid var(--accent);outline-offset:0}.muted{color:var(--muted)}.small{font-size:12px}.error{color:#fca5a5;font-size:13px}.center{min-height:100vh;display:grid;place-items:center}.card{background:var(--panel);border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:10px;padding:16px}.login{display:flex;flex-direction:column;gap:12px;width:340px}.login h1{margin:0;font-size:40px;text-align:center}.login .small{align-self:center}.vu-meter{width:100%;height:auto;display:block;border-radius:10px;box-shadow:inset 0 0 18px #000000b3,0 2px 10px #00000080}.footer{display:flex;justify-content:center;padding-top:14px;margin-top:6px;border-top:1px solid var(--line)}.cci-badge{display:inline-flex;align-items:center;background:#f4f1ec;border-radius:4px;padding:3px 8px;opacity:.65;transition:opacity .15s ease,box-shadow .15s ease}.cci-badge:hover{opacity:1;box-shadow:0 0 10px #f59e0b59}.cci-badge img{display:block}.app{max-width:880px;margin:0 auto;padding:24px 16px 40px}.topbar{display:flex;align-items:center;gap:12px;margin-bottom:20px;border-bottom:1px solid var(--line);padding-bottom:12px}.topbar h1{margin:0;font-size:30px}.spacer{flex:1}.upload{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:24px}.songs{display:flex;flex-direction:column;gap:12px}.song{display:flex;flex-direction:column;gap:10px}.song-head{display:flex;align-items:center;gap:10px}.song-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.badge{font-size:11px;text-transform:uppercase;letter-spacing:.08em;padding:2px 8px;border-radius:3px;background:var(--panel-2);border:1px solid var(--line)}.badge.ready{background:#10b98126;border-color:#10b98166;color:#6ee7b7}.badge.failed{background:#ef444426;border-color:#ef444466;color:#fca5a5}.badge.separating,.badge.pending{background:#f59e0b26;border-color:#f59e0b66;color:#fcd34d}.badge.diff-beginner{background:#10b98126;border-color:#10b98166;color:#6ee7b7}.badge.diff-intermediate{background:#3b82f626;border-color:#3b82f666;color:#93c5fd}.badge.diff-advanced{background:#a855f726;border-color:#a855f766;color:#d8b4fe}.library-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.library-head h2{margin:0}.tag-editor{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.progress{position:relative;height:24px;background:var(--panel-2);border-radius:5px;overflow:hidden}.progress .bar{height:100%;background:linear-gradient(90deg,var(--accent),var(--amber));transition:width .3s ease}.progress-label{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;font-size:12px}.mixer{max-width:760px;margin:0 auto;padding:24px 16px 40px}.mixer-head{display:flex;align-items:center;gap:12px;margin-bottom:20px;border-bottom:1px solid var(--line);padding-bottom:12px}.mixer-head h2{margin:0;font-size:26px}.enable-panel{display:flex;flex-direction:column;gap:12px;align-items:flex-start;background:var(--panel);border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:10px;padding:20px}.transport{display:flex;align-items:center;gap:12px;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px;margin-bottom:16px}.transport .time{font-variant-numeric:tabular-nums;color:var(--muted)}.transport .seek{flex:1}.panels{display:flex;flex-direction:column;gap:10px;margin-bottom:16px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:10px 14px}.panel-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:4px 0}.panel-row+.panel-row{border-top:1px solid #2a2022}.panel-row label{width:84px;color:var(--muted);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.07em}.panel-row input[type=range]{flex:1;min-width:120px}.panel-row .val{font-variant-numeric:tabular-nums;font-size:13px;color:var(--muted);min-width:36px}.panel-row .bpm{width:64px}button.mini{padding:4px 10px;font-size:12px;background:var(--panel-2);border:1px solid var(--line)}button.mini.on{background:var(--accent);color:#fff;border-color:var(--accent)}button.mini.rec{border-color:#7f1d1d;color:#fca5a5}.seg{display:inline-flex}.seg button.mini{border-radius:0;border-right-width:0}.seg button.mini:first-child{border-radius:6px 0 0 6px}.seg button.mini:last-child{border-radius:0 6px 6px 0;border-right-width:1px}.rec-live{color:var(--danger);font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;animation:rec-pulse 1.2s ease-in-out infinite}@keyframes rec-pulse{50%{opacity:.45}}.tracks{display:flex;flex-direction:column;gap:10px}.track{display:grid;grid-template-columns:90px auto 1fr;align-items:center;gap:14px;background:linear-gradient(180deg,var(--panel),#131013);border:1px solid var(--line);border-left:5px solid #64748b;border-radius:8px;padding:12px 14px;transition:opacity .15s ease}.track.dimmed{opacity:.4}.track-name{text-transform:uppercase;letter-spacing:.05em;font-weight:700;font-size:13px}.track-buttons{display:flex;gap:6px}.pill{padding:5px 12px;border-radius:4px;background:var(--panel-2);border:1px solid var(--line);font-size:12px;text-transform:uppercase;letter-spacing:.04em}.pill.on{background:var(--warn);border-color:var(--warn);color:#1c1206}.pill.solo.on{background:var(--ok);border-color:var(--ok);color:#052e1a}.vol{width:100%}.notation{background:var(--panel);border:1px solid var(--line);border-top:3px solid var(--amber);border-radius:10px;padding:12px 14px;margin-bottom:16px}.notation-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px}.notation-head strong{text-transform:uppercase;letter-spacing:.06em;font-size:13px;color:var(--amber)}.notation-head label{color:var(--muted);font-size:13px}.lyric-lines{position:relative;height:220px;overflow-y:auto;scroll-behavior:smooth;text-align:center;padding:88px 0;-webkit-mask-image:linear-gradient(180deg,transparent,#000 24%,#000 76%,transparent);mask-image:linear-gradient(180deg,transparent,#000 24%,#000 76%,transparent)}.lyric-line{margin:10px 0;font-size:16px;color:var(--muted);opacity:.5;transition:color .15s,opacity .15s,transform .15s}.lyric-line.past{opacity:.32}.lyric-line.active{color:var(--text);opacity:1;font-size:22px;font-weight:700;transform:scale(1.04)}.lyric-line .word{transition:color .12s ease}.lyric-line.active .word{color:var(--muted)}.lyric-line.active .word.sung{color:var(--text)}.lyric-line.active .word.on{color:var(--amber);text-shadow:0 0 10px rgba(251,191,36,.45)}.lyric-col{display:inline-flex;flex-direction:column;align-items:center;vertical-align:bottom;margin:0 .18em}.lyric-col .chord{font-size:.72em;font-weight:700;line-height:1.1;min-height:1.1em;white-space:pre;color:var(--amber);opacity:.85}.chord-ribbon{position:relative;display:flex;gap:6px;align-items:center;overflow-x:auto;scroll-behavior:smooth;padding:8px 4px;background:#15110d;border-radius:8px}.chord-box{flex:0 0 auto;display:flex;align-items:center;justify-content:center;height:56px;padding:0 10px;border-radius:6px;background:#ffffff0d;color:var(--muted);font-weight:700;font-size:18px;border:1px solid transparent;transition:color .15s,background .15s,transform .15s,box-shadow .15s}.chord-box.past{opacity:.5}.chord-box.on{color:#15110d;background:var(--amber);border-color:var(--amber);box-shadow:0 0 14px #fbbf2480;transform:scale(1.06)}.lyrics{background:var(--panel);border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:10px;padding:12px 14px;margin-bottom:16px}.lyrics-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px}.lyrics-head strong{text-transform:uppercase;letter-spacing:.06em;font-size:13px;color:var(--accent-hover)}.karaoke-window{min-height:100vh;background:#0d0b0d;color:var(--text);display:flex;flex-direction:column;padding:4vh 6vw;box-sizing:border-box}.kw-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:2vh}.kw-title{text-transform:uppercase;letter-spacing:.08em;font-size:16px;color:var(--accent-hover)}.kw-wait{flex:1 1 auto;display:flex;align-items:center;justify-content:center;color:var(--muted)}.karaoke-window .lyric-lines{height:auto;flex:1 1 auto;padding:30vh 0}.karaoke-window .lyric-line{font-size:4vh}.karaoke-window .lyric-line.active{font-size:6vh;transform:scale(1.05)}.score-view svg{filter:invert(.9) sepia(.22) saturate(1.25) hue-rotate(353deg)}.piano-roll{width:100%;display:block;border:1px solid #2a1c1c;border-radius:6px;background:#120d0e}