:root{--bg: #0a0a12;--panel: #14141f;--panel-2: #1b1b2a;--line: rgba(255, 255, 255, .09);--text: #f2f0f7;--muted: #9a94ad;--pink: #ff2d7e;--violet: #8b5cf6;--cyan: #22d3ee;--accent: var(--pink);--grad: linear-gradient(135deg, #ff2d7e, #8b5cf6 55%, #22d3ee);--radius: 14px}*{box-sizing:border-box}body{margin:0;background:radial-gradient(1200px 500px at 80% -10%,rgba(139,92,246,.16),transparent 60%),radial-gradient(900px 420px at 10% 0%,rgba(255,45,126,.12),transparent 55%),var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}.app{max-width:1060px;margin:0 auto;padding:20px 20px 60px}.app-header{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;padding:8px 0 24px}.logo{background:none;border:none;cursor:pointer;font-size:28px;font-weight:900;letter-spacing:2px;color:var(--text);padding:0}.logo span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}.tagline{color:var(--muted);font-size:14px}.spotify-chip{margin-left:auto;font-size:12px;color:#1ed760;border:1px solid rgba(30,215,96,.35);border-radius:999px;padding:3px 10px}.app-footer{margin-top:48px;color:var(--muted);font-size:12px;border-top:1px solid var(--line);padding-top:16px}.library-lead{color:var(--muted);max-width:640px;margin:0 0 24px}.song-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}.song-card{position:relative;text-align:left;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;color:var(--text);cursor:pointer;transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease}.song-card:hover,.song-card:focus-visible{transform:translateY(-3px);border-color:var(--accent);box-shadow:0 8px 30px -12px 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solid var(--line);color:var(--muted);border-radius:999px;padding:7px 14px;cursor:pointer;font-size:13px;transition:color .15s,border-color .15s}.tab:hover{color:var(--text)}.tab.active{color:var(--text);border-color:var(--accent);background:color-mix(in srgb,var(--accent) 14%,var(--panel))}.tab-num{display:inline-grid;place-items:center;width:18px;height:18px;border-radius:50%;background:var(--accent);color:#0a0a12;font-weight:800;font-size:11px;margin-right:4px}.tab-hint{color:var(--muted);font-size:11px;margin-left:6px}.section-head h3{margin:0;font-size:20px}.lyric-cue{color:var(--accent);font-style:italic;font-size:14px;margin-top:2px}.section-note{color:var(--muted);font-size:13px;max-width:640px;margin:6px 0 0}.practice{margin-top:16px}.stage-row{display:grid;grid-template-columns:320px 1fr;gap:16px;align-items:stretch}@media(max-width:760px){.stage-row{grid-template-columns:1fr}}.stage{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;display:flex;flex-direction:column;align-items:center;min-height:470px;overflow:hidden}.stage:after{content:"";position:absolute;inset:auto 0 0 0;height:90px;background:radial-gradient(60% 100% at 50% 100%,color-mix(in srgb,var(--accent) 22%,transparent),transparent);pointer-events:none}.stage-count{font-size:64px;font-weight:900;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}.stage-countin .stage-count{color:var(--muted);background:none}.figure{color:var(--accent);filter:drop-shadow(0 0 14px color-mix(in srgb,var(--accent) 55%,transparent));margin:6px 0}.mini-figure{color:var(--muted)}.count-card.active 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9;max-width:720px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#000}.video-frame iframe{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:0}.import-lead{max-width:640px}.file-drop{display:flex;flex-direction:column;align-items:center;gap:10px;padding:44px 20px;border:2px dashed var(--line);border-radius:var(--radius);cursor:pointer}.file-drop:hover{border-color:var(--violet)}.import-body{display:flex;gap:20px;flex-wrap:wrap;margin-top:14px}.import-video{flex:1 1 380px;max-width:560px;border-radius:var(--radius);background:#000}.import-controls{flex:1 1 320px}.count-choices{display:inline-flex;gap:6px}.btn.choice.active{border-color:var(--violet);background:color-mix(in srgb,var(--violet) 18%,var(--panel-2))}.progress-bar{height:10px;border-radius:999px;background:var(--panel-2);overflow:hidden}.progress-bar div{height:100%;background:var(--grad);transition:width 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320px;max-width:480px;border-radius:12px;overflow:hidden;background:#000}.cam-video{width:100%;display:block;transform:scaleX(-1)}.cam-overlay{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}.cam-prompt{position:absolute;inset:auto 0 12px 0;text-align:center;color:#fff;font-weight:700;text-shadow:0 1px 6px #000}.judgment{position:absolute;top:14px;left:0;right:0;text-align:center;font-size:34px;font-weight:900;letter-spacing:2px;text-shadow:0 2px 10px rgba(0,0,0,.7);animation:judgment-pop .5s ease-out both;pointer-events:none}@keyframes judgment-pop{0%{transform:scale(1.6);opacity:0}20%{transform:scale(1);opacity:1}80%{opacity:1}to{opacity:.25}}.judgment-perfect{color:#4ade80}.judgment-great{color:#22d3ee}.judgment-good{color:#f5c518}.judgment-miss{color:#ff5f7a}.score-hud{display:flex;flex-direction:column;gap:10px;justify-content:center;min-width:130px}.hud-row{display:flex;align-items:baseline;gap:8px}.hud-big{font-size:30px;font-weight:900;font-variant-numeric:tabular-nums;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}.hud-label{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:1px}.hud-counts{font-size:13px;font-variant-numeric:tabular-nums}.v-perfect{color:#4ade80}.v-great{color:#22d3ee}.v-good{color:#f5c518}.v-miss{color:#ff5f7a}.score-results{display:flex;align-items:center;gap:16px;margin-top:14px;padding:12px 16px;border:1px solid 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0;text-align:center}.dock-status{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:12px;margin-bottom:10px}.setup-steps{color:var(--muted);font-size:13px;padding-left:20px;margin:0 0 12px}.setup-steps li{margin-bottom:6px}.setup-steps code{background:var(--panel-2);border:1px solid var(--line);border-radius:6px;padding:1px 6px;color:var(--cyan);font-size:12px;-webkit-user-select:all;user-select:all}.setup-steps a{color:var(--cyan)}.setup-form{display:flex;gap:8px}.setup-form input{flex:1;background:var(--panel-2);border:1px solid var(--line);border-radius:10px;color:var(--text);padding:9px 12px;font-size:14px}.fine-print{color:var(--muted);font-size:12px;margin:10px 0 0}.error-text{color:#ff7b9c;font-size:13px;margin:4px 0}.muted{color:var(--muted)}.center{text-align:center}.row-gap{display:flex;gap:12px;align-items:center}.sp-track{display:flex;gap:10px;align-items:center;margin-bottom:10px}.sp-track img{border-radius:6px}.sp-name{font-weight:700;font-size:14px}.sp-artists{color:var(--muted);font-size:12px}.sp-controls{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:8px 0}.sp-time{color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums}.sp-seek{width:100%;accent-color:#1ed760}.sp-volume input{width:100px}.preview-audio{width:100%;height:36px}