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select{padding:6px 10px;background:var(--bg-primary);border:1px solid var(--bg-tertiary);border-radius:4px;color:var(--text-primary);font-size:.85em}.setting-group select:focus{outline:none;border-color:var(--accent)}.fret-slider{width:80px;height:5px;accent-color:var(--accent);cursor:pointer}.setting-group.toggles{gap:12px}.toggle-item{display:flex;align-items:center;gap:6px;font-size:.85em;color:var(--text-secondary);cursor:pointer}.toggle-item:hover{color:var(--text-primary)}.toggle-item input[type=checkbox]{width:14px;height:14px;accent-color:var(--accent);cursor:pointer}.filter-group{position:relative}.filter-btn{padding:6px 12px;background:var(--bg-primary);border:1px solid var(--bg-tertiary);border-radius:4px;color:var(--text-secondary);font-size:.85em;cursor:pointer}.filter-btn:hover{border-color:var(--accent);color:var(--text-primary)}.filter-dropdown{position:absolute;top:calc(100% + 8px);right:0;min-width:200px;background:var(--bg-secondary);border:1px solid var(--bg-tertiary);border-radius:8px;padding:12px;z-index:100;box-shadow:0 4px 20px #0000004d}.filter-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;padding-bottom:8px;border-bottom:1px solid var(--bg-tertiary)}.filter-header span{font-size:.85em;color:var(--text-secondary)}.filter-actions{display:flex;gap:6px}.filter-actions button{padding:3px 8px;font-size:.75em;background:var(--bg-primary);border:1px solid var(--bg-tertiary);border-radius:3px;color:var(--text-secondary);cursor:pointer}.filter-actions button:hover{border-color:var(--accent);color:var(--text-primary)}.filter-items{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.filter-item{display:flex;align-items:center;gap:4px;font-size:.8em;color:var(--text-secondary);cursor:pointer;padding:4px;border-radius:3px}.filter-item:hover{background:var(--bg-tertiary);color:var(--text-primary)}.filter-item input[type=checkbox]{width:12px;height:12px;accent-color:var(--accent)}.filter-item .root-label{color:var(--accent);font-weight:600}@media(max-width:600px){.fretboard-settings{gap:12px;padding:10px 15px}.setting-group{flex-wrap:wrap}.fret-slider{width:60px}.filter-dropdown{right:-20px;min-width:180px}.filter-items{grid-template-columns:repeat(3,1fr)}}.app{min-height:100vh;padding-bottom:40px}.app-header{padding:20px;text-align:center;border-bottom:1px solid var(--bg-tertiary);margin-bottom:10px}.app-header h1{font-size:1.8em;color:var(--text-primary);margin:0 0 5px}.app-header h1 span{color:var(--accent)}.app-header p{color:var(--text-secondary);font-size:.95em;margin:0}.nav-tabs{display:flex;justify-content:center;gap:10px;padding:15px 20px;background:var(--bg-secondary);margin:0 20px 20px;border-radius:8px}.nav-tabs button{padding:10px 25px;font-size:1em;background:transparent;border:1px solid var(--bg-tertiary)}.nav-tabs button.active{background:var(--accent);border-color:var(--accent);color:#fff}.main-content{max-width:1400px;margin:0 auto}