:root{--bg-main: #0b0f19;--bg-card: rgba(18, 26, 44, .75);--bg-card-hover: rgba(28, 40, 66, .85);--border-color: rgba(255, 255, 255, .1);--border-glow: rgba(99, 102, 241, .3);--accent-primary: #6366f1;--accent-primary-hover: #4f46e5;--accent-secondary: #06b6d4;--accent-metal-7str: #f43f5e;--accent-gold: #f59e0b;--text-main: #f8fafc;--text-muted: #94a3b8;--text-dim: #64748b;--string-6: #e2e8f0;--string-7: #f43f5e;--fret-wire: #475569;--fretboard-wood: #1e1b18;--fretboard-rosewood: #151210;--font-ui: "Outfit", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "Fira Code", monospace}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}body{background-color:var(--bg-main);background-image:radial-gradient(circle at 10% 20%,rgba(99,102,241,.15) 0%,transparent 40%),radial-gradient(circle at 90% 80%,rgba(6,182,212,.12) 0%,transparent 40%),radial-gradient(circle at 50% 50%,rgba(244,63,94,.08) 0%,transparent 60%);background-attachment:fixed;color:var(--text-main);font-family:var(--font-ui);min-height:100vh;overflow-x:hidden}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:#0003}::-webkit-scrollbar-thumb{background:#fff3;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--accent-primary)}.app-container{display:flex;flex-direction:column;min-height:100vh;max-width:1200px;margin:0 auto;padding-bottom:110px}.navbar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:#0b0f19d9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:50}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text-main);font-weight:800;font-size:1.35rem;letter-spacing:-.5px}.brand-icon{width:32px;height:32px;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));border-radius:8px;display:flex;align-items:center;justify-content:center;box-shadow:0 0 15px #6366f166}.badge-7str{background:linear-gradient(135deg,#f43f5e,#e11d48);color:#fff;font-size:.65rem;font-weight:700;padding:2px 6px;border-radius:12px;text-transform:uppercase;letter-spacing:.5px;animation:pulse-glow 2s infinite ease-in-out}@keyframes pulse-glow{0%,to{box-shadow:0 0 5px #f43f5e66}50%{box-shadow:0 0 15px #f43f5ecc}}.nav-actions{display:flex;gap:8px}.btn-icon{background:#ffffff0d;border:1px solid var(--border-color);color:var(--text-main);height:36px;padding:0 12px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;gap:6px;cursor:pointer;white-space:nowrap;font-size:.8rem;font-weight:700;flex-shrink:0;transition:all .2s ease}.btn-icon:hover{background:#ffffff1f;border-color:#ffffff40;transform:translateY(-1px)}.btn-primary{background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));color:#fff;border:none;padding:8px 16px;border-radius:10px;font-weight:600;font-size:.9rem;cursor:pointer;display:inline-flex;align-items:center;gap:6px;box-shadow:0 4px 12px #6366f14d;transition:all .2s ease}.btn-primary:hover{opacity:.95;transform:translateY(-1px);box-shadow:0 6px 16px #6366f180}.song-banner{margin:12px;padding:16px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:16px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;flex-direction:column;gap:12px;position:relative;z-index:40}@media (min-width: 640px){.song-banner{flex-direction:row;align-items:center;justify-content:space-between}}.song-title-group h1{font-size:1.3rem;font-weight:700;color:var(--text-main);line-height:1.2}.song-title-group p{font-size:.85rem;color:var(--text-muted);margin-top:4px}.song-meta-tags{display:flex;flex-wrap:wrap;gap:6px;align-items:center}.meta-tag{font-size:.75rem;padding:4px 8px;border-radius:6px;background:#ffffff0f;border:1px solid rgba(255,255,255,.08);color:var(--text-muted);display:inline-flex;align-items:center;gap:4px}.meta-tag.highlight-7str{background:#f43f5e26;border-color:#f43f5e4d;color:#fb7185;font-weight:600}.meta-tag.highlight-6str{background:#6366f126;border-color:#6366f14d;color:#818cf8;font-weight:600}.fretboard-card{margin:0 12px 12px;background:var(--fretboard-rosewood);border:1px solid rgba(255,255,255,.15);border-radius:16px;overflow:hidden;box-shadow:0 8px 32px #0009;position:relative}.fretboard-header{padding:10px 16px;background:#00000080;border-bottom:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;align-items:center}.fretboard-title{font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--text-muted);display:flex;align-items:center;gap:6px}.fretboard-scroll-wrapper{width:100%;overflow-x:auto;padding:16px 0;scrollbar-width:thin}.fretboard-svg{display:block;min-width:800px;height:170px}.string-line{stroke-linecap:round;transition:stroke .2s}.string-vibrating{animation:string-shake .15s infinite alternate ease-in-out}@keyframes string-shake{0%{transform:translateY(-1px)}to{transform:translateY(1px)}}.finger-dot{filter:drop-shadow(0 0 6px rgba(99,102,241,.8));animation:dot-pop .2s cubic-bezier(.175,.885,.32,1.275)}.finger-dot-7str{filter:drop-shadow(0 0 8px rgba(244,63,94,.9))}@keyframes dot-pop{0%{transform:scale(.4);opacity:.4}to{transform:scale(1);opacity:1}}.tab-sheet-card{margin:0 12px 12px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:16px;padding:16px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.tab-sheet-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.tab-pre-wrapper{font-family:var(--font-mono);font-size:.95rem;line-height:1.5;background:#0006;padding:16px;border-radius:12px;border:1px solid rgba(255,255,255,.05);overflow-x:auto;color:#e2e8f0;white-space:pre}.tab-line-highlight{background:#6366f126;border-left:3px solid var(--accent-primary);display:inline-block;width:100%}.active-tab-char{background:#6366f173;color:#fff;border-radius:2px;box-shadow:0 0 6px #6366f199}.tab-scroll{overflow-x:auto;overflow-y:hidden;background:#0006;border:1px solid rgba(255,255,255,.05);border-radius:12px;padding:4px 0 10px}.tab-strip{display:flex;flex-direction:row;gap:18px;width:max-content;padding:8px 16px}.tab-measure{flex:0 0 auto;background:#ffffff05;border:1px solid rgba(255,255,255,.06);border-radius:10px;padding:8px 12px;cursor:pointer;transition:border-color .2s,box-shadow .2s,background .2s}.tab-measure:hover{border-color:#6366f180}.tab-measure.active{border-color:var(--accent-primary);background:#6366f10f;box-shadow:0 0 14px #6366f159}.tab-measure-num{font-size:.7rem;color:#94a3b8;text-align:center;margin-bottom:4px;font-weight:700}.tab-string-line{font-family:var(--font-mono);font-size:.95rem;line-height:1.4;white-space:pre;color:#e2e8f0}.timeline-beats{display:flex;gap:12px;overflow-x:auto;padding:8px 0;margin-top:12px}.beat-pill{flex:0 0 auto;background:#ffffff0d;border:1px solid var(--border-color);padding:8px 12px;border-radius:10px;cursor:pointer;transition:all .2s}.beat-pill:hover{background:#ffffff1a}.beat-pill.active{background:linear-gradient(135deg,#6366f14d,#06b6d433);border-color:var(--accent-primary);box-shadow:0 0 12px #6366f14d}.beat-time{font-size:.75rem;color:var(--accent-secondary);font-weight:700}.beat-desc{font-size:.8rem;color:var(--text-main);margin-top:2px}.bottom-player-bar{position:fixed;bottom:0;left:0;right:0;background:#0b0f19f2;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-top:1px solid var(--border-color);padding:12px 16px;z-index:100;box-shadow:0 -8px 32px #0009}.player-inner{max-width:1200px;margin:0 auto;display:flex;flex-direction:column;gap:8px}.player-controls{display:flex;flex-direction:row;flex-wrap:nowrap;align-items:center;justify-content:space-between;gap:8px;width:100%}.player-left-group,.player-right-group{display:flex;flex-direction:row;flex-wrap:nowrap;align-items:center;gap:8px;flex-shrink:0;height:36px}.instrument-selector-wrapper{position:relative;display:inline-block;flex-shrink:0;z-index:50}.instrument-dropdown-menu{position:absolute;right:0;bottom:100%;margin-bottom:8px;width:210px;background:#0b0f19;border:1px solid rgba(255,255,255,.15);border-radius:12px;padding:6px;box-shadow:0 10px 30px #000c;z-index:99999;display:flex;flex-direction:column;gap:4px}.instrument-dropdown-item{background:transparent;border:none;color:#e2e8f0;padding:8px 10px;border-radius:8px;font-size:.8rem;font-weight:700;text-align:left;cursor:pointer;display:flex;align-items:center;justify-content:space-between;width:100%;transition:background .15s}.instrument-dropdown-item:hover{background:#ffffff1a;color:#fff}.instrument-dropdown-item.active{background:#6366f140;border:1px solid rgba(99,102,241,.5);color:#fff}.volume-selector-wrapper{position:relative;display:inline-block;flex-shrink:0;z-index:50}.volume-dropdown-menu{position:absolute;right:0;bottom:100%;margin-bottom:12px;width:240px;background:#0d1322;border:1px solid rgba(255,255,255,.15);border-radius:14px;padding:12px;box-shadow:0 12px 35px #000000d9;z-index:99999;display:flex;flex-direction:column;gap:12px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.volume-dropdown-header{display:flex;align-items:center;justify-content:space-between;font-size:.75rem;font-weight:800;text-transform:uppercase;letter-spacing:.5px;color:#94a3b8;padding-bottom:6px;border-bottom:1px solid rgba(255,255,255,.1)}.volume-mute-btn{background:#ffffff0f;border:1px solid rgba(255,255,255,.12);color:#e2e8f0;padding:3px 8px;border-radius:6px;font-size:.7rem;font-weight:700;cursor:pointer;display:flex;align-items:center;gap:4px;transition:all .15s ease}.volume-mute-btn:hover{background:#ffffff26}.volume-slider-group{display:flex;flex-direction:column;gap:6px}.volume-slider-header{display:flex;align-items:center;justify-content:space-between;font-size:.8rem}.volume-percentage{font-family:var(--font-mono);font-size:.75rem;color:#818cf8;font-weight:700}.volume-range-slider{width:100%;height:6px;-webkit-appearance:none;background:#ffffff26;border-radius:3px;outline:none;cursor:pointer}.volume-range-slider::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:#6366f1;box-shadow:0 0 8px #6366f1;cursor:pointer;transition:transform .15s ease}.volume-range-slider::-webkit-slider-thumb:hover{transform:scale(1.2)}.metronome-slider::-webkit-slider-thumb{background:#f59e0b;box-shadow:0 0 8px #f59e0b}.play-btn-large{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));border:none;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 0 16px #6366f180;transition:transform .2s ease;flex-shrink:0}.play-btn-large:hover{transform:scale(1.06)}.time-display{font-family:var(--font-mono);font-size:.85rem;color:var(--text-muted)}.seek-bar{width:100%;height:6px;-webkit-appearance:none;background:#ffffff26;border-radius:3px;outline:none;cursor:pointer}.seek-bar::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:var(--accent-primary);box-shadow:0 0 8px var(--accent-primary);cursor:pointer}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000bf;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:200;display:flex;align-items:center;justify-content:center;padding:16px}.modal-content{background:#121a2c;border:1px solid var(--border-color);border-radius:20px;width:100%;max-width:650px;max-height:85vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 20px 50px #000c}.modal-header{padding:16px 20px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between}.modal-body{padding:20px;overflow-y:auto;display:flex;flex-direction:column;gap:16px}.input-field{width:100%;background:#ffffff0d;border:1px solid var(--border-color);border-radius:10px;padding:10px 14px;color:#fff;font-family:inherit;font-size:.95rem;outline:none;transition:border-color .2s}.input-field:focus{border-color:var(--accent-primary)}.song-card-item{background:#ffffff08;border:1px solid var(--border-color);border-radius:12px;padding:12px 16px;display:flex;align-items:center;justify-content:space-between;cursor:pointer;transition:all .2s ease}.song-card-item:hover{background:#ffffff14;border-color:var(--accent-primary);transform:translate(4px)}