:root{--bg-color:#0f111a;--bg-panel:#191c2999;--text-main:#f8f8f2;--text-muted:#8c92ac;--accent-primary:#ff5e62;--accent-secondary:#f96;--accent-glow:#ff5e6266;--border-color:#ffffff14;color:var(--text-main);background-color:var(--bg-color);box-sizing:border-box;background-image:radial-gradient(circle at 15%,#ff5e6214,#0000 25%),radial-gradient(circle at 85% 30%,#ff996614,#0000 25%);background-attachment:fixed;min-height:100vh;margin:0;padding:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif}*,:before,:after{box-sizing:inherit}body{margin:0;padding:0}.glass-panel{background:var(--bg-panel);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:16px;padding:24px;box-shadow:0 8px 32px #0000004d}.app-container{flex-direction:column;gap:30px;max-width:1200px;margin:0 auto;padding:40px 20px;display:flex}.header{text-align:center;margin-bottom:20px}.header h1{background:linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));-webkit-text-fill-color:transparent;letter-spacing:-1px;-webkit-background-clip:text;margin:0 0 10px;font-size:3rem;font-weight:800}.header p{color:var(--text-muted);margin:0;font-size:1.1rem}.input-form{gap:12px;max-width:600px;margin:0 auto;display:flex}.input-form input{border:1px solid var(--border-color);color:var(--text-main);background:#0003;border-radius:12px;outline:none;flex:1;padding:14px 20px;font-size:1rem;transition:all .3s}.input-form input:focus{border-color:var(--accent-primary);box-shadow:0 0 0 3px #ff5e6233}.btn-primary{background:linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));color:#fff;cursor:pointer;border:none;border-radius:12px;align-items:center;gap:8px;padding:14px 28px;font-size:1rem;font-weight:600;transition:all .3s;display:flex}.btn-primary:hover:not(:disabled){box-shadow:0 8px 20px 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#ffffff1a;border-left-color:var(--accent-primary);border-radius:50%;width:40px;height:40px;animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.audio-player{flex-direction:column;gap:16px;padding:20px 24px;display:flex}.player-top{align-items:center;gap:16px;display:flex}.song-art{flex-shrink:0}.song-art-img,.song-art-placeholder{object-fit:cover;border-radius:10px;width:72px;height:72px;box-shadow:0 6px 20px #00000059}.song-art-placeholder{color:var(--text-muted);border:1px solid var(--border-color);background:#ffffff0f;justify-content:center;align-items:center;display:flex}.song-meta{flex:1;min-width:0}.song-title{letter-spacing:-.02em;white-space:nowrap;text-overflow:ellipsis;margin:0 0 4px;font-size:1.2rem;font-weight:700;overflow:hidden}.song-artist{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;margin:0 0 8px;font-size:.95rem;overflow:hidden}.song-key{color:var(--accent-secondary);background:#ff5e621f;border:1px solid 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var(--accent-glow);transform:scale(1.05)}.play-btn:disabled{opacity:.5;cursor:not-allowed}.progress-container{align-items:center;gap:12px;width:100%;display:flex}.reanalyze-row{justify-content:flex-end;margin-top:-8px;display:flex}.time{font-variant-numeric:tabular-nums;color:var(--text-muted);width:45px;font-size:.9rem}.progress-bar{cursor:pointer;background:#ffffff1a;border-radius:3px;flex:1;height:6px;position:relative;overflow:hidden}.progress-fill{background:linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));pointer-events:none;border-radius:3px;height:100%;position:absolute;top:0;left:0}.playback-main{grid-template-columns:1fr;gap:20px;display:grid}@media (width>=900px){.playback-main:has(.lyrics-glass){grid-template-columns:minmax(0,1.4fr) minmax(280px,.9fr);align-items:start}}.chord-panel{padding:8px 0 16px;overflow:hidden}.lyrics-glass{max-height:420px;padding:0;overflow:hidden}.chord-sequence-wrap{padding:0 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0%,#000 12% 88%,#0000 100%);mask-image:linear-gradient(#0000 0%,#000 12% 88%,#0000 100%)}.lyrics-panel-scroll{overscroll-behavior:contain;scrollbar-width:none;height:100%;max-height:360px;padding:24px 20px 32px;overflow:hidden auto}.lyrics-panel-scroll::-webkit-scrollbar{display:none}.lyrics-line{color:var(--text-muted);opacity:.45;transform-origin:0;margin:0 0 18px;font-size:1.35rem;font-weight:600;line-height:1.45;transition:color .25s,opacity .25s,transform .25s;transform:scale(.98)}.lyrics-line.active{color:var(--text-main);opacity:1;transform:scale(1)}.lyrics-line.past{opacity:.35}.lyrics-line.upcoming{opacity:.5}.lyrics-line.plain{opacity:.85;font-size:1rem;font-weight:500;transform:none}.chord-card.active{border-color:var(--accent-primary);z-index:2;background:#ff5e621a;transform:scale(1.05);box-shadow:0 0 20px 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.pent-dot-label{fill:#fff;font-weight:800}.pent-legend-scale{background:#38bdf8}.pent-legend-root{background:var(--accent-primary);box-shadow:0 0 0 2px var(--accent-secondary)}.pent-legend-active{border-color:var(--accent-secondary);box-shadow:inset 0 0 0 1px var(--accent-secondary);background:0 0}.caged-box-outline{fill:#ffffff08;stroke:#ffffff2e;stroke-width:1.5px;rx:8;ry:8;pointer-events:none;transition:stroke .15s,fill .15s}.caged-box-group.active-chord-box .caged-box-outline{fill:#fbbf2414;stroke:#fbbf248c;stroke-width:2px}.caged-box-number{fill:#ffffff59;pointer-events:none;font-size:11px;font-weight:700}.caged-box-group.active-chord-box .caged-box-number{fill:#fbbf24}.pent-box-highlight{fill:#fbbf241a;stroke:#fbbf24;stroke-width:2.5px;rx:8;ry:8;pointer-events:none;transition:opacity 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linear}.note-text{fill:#fff;text-anchor:middle;dominant-baseline:central;pointer-events:none;font-size:10px;font-weight:700}.site-footer{text-align:center;color:var(--text-muted);margin-top:auto;padding:24px 20px 32px;font-size:.875rem}.site-footer-nav{flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;margin-bottom:8px;display:flex}.site-footer-nav a{color:var(--text-muted);text-decoration:none;transition:color .2s}.site-footer-nav a:hover{color:var(--accent-secondary)}.site-footer-sep{opacity:.4}.site-footer-copy{opacity:.7;margin:0;font-size:.8rem}.cookie-consent-banner{z-index:1000;-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--border-color);background:#0f111af2;flex-wrap:wrap;justify-content:center;align-items:center;gap:16px 24px;padding:16px 24px;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -8px 32px #0006}.cookie-consent-text{max-width:560px;color:var(--text-muted);margin:0;font-size:.875rem;line-height:1.5}.cookie-consent-text a{color:var(--accent-secondary);text-decoration:none}.cookie-consent-text a:hover{text-decoration:underline}.cookie-consent-actions{flex-shrink:0;gap:10px;display:flex}.cookie-consent-actions .btn-primary,.cookie-consent-actions .btn-secondary{padding:10px 20px;font-size:.875rem}.static-page{padding-bottom:80px}.static-page-content{max-width:720px;margin:0 auto}.static-page-content section{margin-bottom:28px}.static-page-content h2{color:var(--text-main);margin:0 0 12px;font-size:1.25rem}.static-page-content h3{color:var(--accent-secondary);margin:16px 0 8px;font-size:1rem}.static-page-content p,.static-page-content li,.static-page-content dd{color:var(--text-muted);margin:0 0 12px;line-height:1.65}.static-page-content ul{margin:0 0 12px;padding-left:1.25rem}.static-page-content code{color:var(--accent-secondary);background:#0000004d;border-radius:4px;padding:2px 6px;font-size:.85em}.static-page-content a{color:var(--accent-secondary)}.static-page-meta{opacity:.8;font-size:.85rem;margin-bottom:24px!important}.static-page-back{border-top:1px solid var(--border-color);padding-top:16px;margin-top:32px!important}.static-page-back a{font-weight:600;text-decoration:none}.static-page-back a:hover{text-decoration:underline}.how-it-works-steps{flex-direction:column;gap:20px;margin:0;padding:0;list-style:none;display:flex}.how-it-works-steps li{align-items:flex-start;gap:16px;display:flex}.step-icon{width:44px;height:44px;color:var(--accent-secondary);background:#ff5e621f;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.how-it-works-steps strong{color:var(--text-main);margin-bottom:4px;display:block}.how-it-works-steps p{margin:0;font-size:.95rem}.faq-list{margin:0}.faq-list>div{border-bottom:1px solid var(--border-color);margin-bottom:20px;padding-bottom:20px}.faq-list>div:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.faq-list dt{color:var(--text-main);margin-bottom:8px;font-weight:600}.faq-list dd{margin:0}