*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:#f5f5f0;color:#1a1a2e;min-height:100vh}

/* Header */
.header{background:#1a1a2e;color:#fff;padding:12px 24px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}
.header h1{font-size:22px;font-weight:600;letter-spacing:-0.5px}
.header h1 span{color:#4ecdc4}


/* Buttons */
.btn{background:none;border:1.5px solid #4ecdc4;color:#4ecdc4;padding:6px 16px;border-radius:6px;cursor:pointer;font-size:13px;font-weight:500;transition:all .15s}
.btn:hover{background:#4ecdc4;color:#1a1a2e}
.btn:disabled{opacity:.35;cursor:not-allowed;pointer-events:none}
.btn-filled{background:#4ecdc4;color:#1a1a2e;border-color:#4ecdc4}
.btn-filled:hover{background:#3dbdb5}

/* Views */
.view{display:none;max-width:960px;margin:0 auto;padding:24px}
.view.active{display:block}

/* Song List */
.song-list-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.song-list-header h2{font-size:18px;font-weight:500}
.song-table{width:100%;border-collapse:collapse;background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 1px 4px rgba(0,0,0,.06)}
.song-table th{background:#2d2d44;color:#aaa;font-size:11px;text-transform:uppercase;letter-spacing:1px;padding:10px 16px;text-align:left;font-weight:500}
.song-table td{padding:12px 16px;border-bottom:1px solid #eee;font-size:14px}
.song-table tr:last-child td{border-bottom:none}
.song-table tbody tr:hover td{background:#f8f8f4;cursor:pointer}
.song-name{font-weight:500;color:#1a1a2e}
.song-artist{color:#666}
.key-badge{display:inline-block;background:#e8f8f5;color:#1a8a70;padding:2px 10px;border-radius:4px;font-weight:500;font-size:13px;min-width:32px;text-align:center}
.steps-badge{display:inline-block;padding:2px 10px;border-radius:4px;font-weight:500;font-size:13px;min-width:32px;text-align:center}
.steps-up{background:#e8f0fe;color:#1a56a0}
.steps-down{background:#fde8e8;color:#a01a1a}
.steps-zero{background:#f0f0f0;color:#888}

/* Form */
.form-card{background:#fff;border-radius:10px;padding:32px;box-shadow:0 1px 4px rgba(0,0,0,.06);max-width:640px;margin:0 auto}
.form-card h2{font-size:18px;margin-bottom:20px;font-weight:500}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:13px;color:#666;margin-bottom:5px;font-weight:500}
.form-group input,.form-group textarea{width:100%;padding:10px 14px;border:1.5px solid #ddd;border-radius:6px;font-size:14px;font-family:inherit;transition:border-color .15s}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:#4ecdc4}
.form-group textarea{font-family:'Consolas','Menlo','Monaco','Courier New',monospace;font-size:13px;resize:vertical;min-height:300px;line-height:1.5;white-space:pre;overflow-wrap:normal}
.form-row{display:flex;gap:16px}
.form-row .form-group{flex:1}
.form-actions{display:flex;gap:12px;margin-top:24px}

/* Editor toolbar */
.editor-toolbar{background:#2d2d44;border-radius:10px;margin-bottom:16px;overflow:hidden}
.toolbar-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:8px 16px;border-bottom:1px solid rgba(255,255,255,.06)}
.toolbar-row:last-child{border-bottom:none}
.toolbar-title-row{padding:10px 16px 6px}
.toolbar-title-row h2{color:#fff;font-size:17px;font-weight:500}
.toolbar-title-row .artist{color:#8888aa;font-size:14px;margin-left:10px}
.toolbar-group{display:flex;align-items:center;gap:6px;padding:0 8px;border-right:1px solid rgba(255,255,255,.1)}
.toolbar-group:last-child{border-right:none}
.toolbar-label{color:#8888aa;font-size:11px;text-transform:uppercase;letter-spacing:.5px;margin-right:2px}
.toolbar-value{color:#fff;font-size:14px;font-weight:500}
.toolbar-btn{background:rgba(255,255,255,.08);border:none;color:#fff;width:28px;height:28px;border-radius:5px;cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center;transition:all .15s}
.toolbar-btn:hover{background:rgba(78,205,196,.3)}
.toolbar-btn:disabled{opacity:.3;cursor:not-allowed}

/* Locked state for edit row */
.toolbar-row.locked{opacity:.4;pointer-events:none}

/* Highlight color buttons */
.color-btn{width:24px;height:24px;border-radius:50%;border:2px solid transparent;cursor:pointer;transition:all .15s}
.color-btn:hover{transform:scale(1.15)}
.color-btn.active{border-color:#fff;box-shadow:0 0 6px rgba(255,255,255,.4)}
.color-btn:disabled{opacity:.3;cursor:not-allowed;transform:none}
.color-R{background:#ff5050}
.color-O{background:#ff9f43}
.color-Y{background:#ffc107}
.color-G{background:#51cf66}
.color-B{background:#339af0}
.color-erase{background:repeating-conic-gradient(#ccc 0% 25%, #fff 0% 50%) 50%/12px 12px}

/* Sliders */
.opacity-slider,.scroll-slider{-webkit-appearance:none;appearance:none;height:4px;background:rgba(255,255,255,.2);border-radius:2px;outline:none}
.opacity-slider{width:80px}
.scroll-slider{width:70px}
.opacity-slider::-webkit-slider-thumb,.scroll-slider::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:#4ecdc4;cursor:pointer}
.opacity-slider::-moz-range-thumb,.scroll-slider::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:#4ecdc4;cursor:pointer;border:none}

/* Chord Sheet */
.chord-sheet-container{background:#fff;border-radius:10px;box-shadow:0 1px 4px rgba(0,0,0,.06);overflow:hidden}
.chord-sheet{padding:24px 28px;font-family:'Consolas','Menlo','Monaco','Courier New',monospace;font-size:14px;line-height:1.6;white-space:pre-wrap;overflow-y:auto;max-height:calc(100vh - 280px)}
.chord-line{color:#c0392b;font-weight:600;user-select:none;pointer-events:none}
.lyric-line{color:#2c3e50;cursor:text}
.section-line{color:#7f8c8d;font-weight:600;font-size:13px;text-transform:uppercase;letter-spacing:1px;margin-top:8px}
.blank-line{height:1.6em}
.highlight{border-radius:2px;padding:0 1px}

/* Edit textarea */
.edit-textarea{width:100%;min-height:calc(100vh - 320px);border:none;outline:none;resize:vertical;font-family:'Consolas','Menlo','Monaco','Courier New',monospace;font-size:14px;line-height:1.6;padding:0;background:transparent;color:#2c3e50;white-space:pre;overflow-wrap:normal}

/* Back button */
.back-row{margin-bottom:16px}
.back-btn{background:none;border:none;color:#4ecdc4;cursor:pointer;font-size:14px;padding:4px 0;font-weight:500}
.back-btn:hover{text-decoration:underline}

/* Chord Chart Modal */
.modal-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);z-index:200;justify-content:center;align-items:flex-start;padding:40px 20px;overflow-y:auto}
.modal-overlay.active{display:flex}
.modal{background:#fff;border-radius:12px;max-width:800px;width:100%;max-height:calc(100vh - 80px);overflow-y:auto;box-shadow:0 8px 32px rgba(0,0,0,.2)}
.modal-header{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;border-bottom:1px solid #eee;position:sticky;top:0;background:#fff;border-radius:12px 12px 0 0;z-index:1}
.modal-header h2{font-size:17px;font-weight:500}
.modal-close{background:none;border:none;font-size:22px;cursor:pointer;color:#999;padding:4px 8px;border-radius:4px}
.modal-close:hover{background:#f0f0f0;color:#333}
.modal-body{padding:24px}
.chord-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:20px}
.chord-card{border:1px solid #eee;border-radius:8px;padding:16px;text-align:center}
.chord-card h3{font-size:16px;font-weight:600;color:#1a1a2e;margin-bottom:8px}
.chord-diagram{display:flex;justify-content:center;margin-bottom:8px}
.chord-tab{font-family:'Consolas','Menlo',monospace;font-size:11px;color:#666;line-height:1.4;text-align:left;display:inline-block}