:root{--bg-primary: #0a0a0a;--bg-secondary: #1a1a1a;--bg-tertiary: #2a2a2a;--border-color: #333;--text-primary: #fff;--text-secondary: #aaa;--text-muted: #666;--accent-color: #4a9eff;--success-color: #4ade80;--danger-color: #ef4444;--warning-color: #fbbf24}*{box-sizing:border-box}body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh}#app{min-height:100vh}.app-container{display:flex;min-height:100vh}.sidebar{width:320px;background:var(--bg-secondary);border-right:1px solid var(--border-color);padding:20px;flex-shrink:0}.main-content{flex:1;padding:20px;overflow-y:auto}.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:1200px;margin:0 auto}.keys-section,.editors-section{background:var(--bg-secondary);border-radius:12px;border:1px solid var(--border-color);padding:20px}.keys-section h2,.editors-section h2{margin:0 0 20px;font-size:1.25rem;color:var(--text-primary)}.editor-tabs{display:flex;gap:8px;margin-bottom:20px;border-bottom:1px solid var(--border-color);padding-bottom:12px}.tab-btn{padding:8px 16px;background:transparent;border:none;color:var(--text-secondary);font-size:.9rem;cursor:pointer;border-radius:6px;transition:all .2s ease}.tab-btn:hover{background:var(--bg-tertiary);color:var(--text-primary)}.tab-btn.active{background:var(--accent-color);color:var(--text-primary)}.tab-content{display:none}.tab-content.active{display:block}.key-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(2,1fr);gap:12px;max-width:400px;margin:0 auto}.key-button{aspect-ratio:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:16px;border:2px solid var(--border-color);border-radius:12px;background:linear-gradient(145deg,var(--bg-tertiary),var(--bg-secondary));color:var(--text-primary);cursor:pointer;transition:all .2s ease;font-family:inherit}.key-button:hover{border-color:#666;transform:translateY(-2px);box-shadow:0 4px 12px #0000004d}.key-button.selected{border-color:var(--accent-color);background:linear-gradient(145deg,#1a3a5a,#0a2a4a);box-shadow:0 0 20px #4a9eff4d}.key-number{font-size:.75rem;color:var(--text-muted)}.key-binding{font-size:.875rem;font-weight:600;text-align:center;word-break:break-word}.key-editor,.led-editor{padding:20px;background:var(--bg-secondary);border-radius:12px;border:1px solid var(--border-color)}.key-editor h3,.led-editor h3{margin:0 0 20px;color:var(--text-primary);font-size:1.25rem}.editor-section{margin-bottom:20px}.editor-section>label{display:block;margin-bottom:8px;color:var(--text-secondary);font-size:.875rem;font-weight:500}.editor-section select{width:100%;padding:10px 12px;background:var(--bg-tertiary);border:1px solid #444;border-radius:6px;color:var(--text-primary);font-size:.9rem}.editor-section select:focus{outline:none;border-color:var(--accent-color)}.modifier-group{display:flex;flex-wrap:wrap;gap:12px}.checkbox-label{display:flex;align-items:center;gap:6px;color:#ccc;cursor:pointer}.checkbox-label input[type=checkbox]{width:18px;height:18px;accent-color:var(--accent-color)}.editor-placeholder{padding:40px;text-align:center;color:var(--text-muted)}.color-picker-wrapper{display:flex;align-items:center;gap:12px}.color-picker-wrapper input[type=color]{width:60px;height:40px;padding:0;border:2px solid #444;border-radius:6px;background:none;cursor:pointer}.color-picker-wrapper input[type=color]::-webkit-color-swatch-wrapper{padding:2px}.color-picker-wrapper input[type=color]::-webkit-color-swatch{border-radius:4px;border:none}.color-value{font-family:monospace;color:var(--text-muted)}input[type=range]{width:100%;height:8px;background:var(--border-color);border-radius:4px;outline:none;-webkit-appearance:none}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;background:var(--accent-color);border-radius:50%;cursor:pointer}input[type=range]::-moz-range-thumb{width:20px;height:20px;background:var(--accent-color);border-radius:50%;cursor:pointer;border:none}.device-panel{background:var(--bg-tertiary);border-radius:12px;border:1px solid var(--border-color);padding:20px}.panel-header{display:flex;flex-direction:column;gap:12px;margin-bottom:20px}.panel-header h2{margin:0;font-size:1.25rem;color:var(--text-primary)}.connection-status{display:flex;align-items:center;gap:8px;padding:6px 12px;border-radius:20px;background:var(--bg-primary);width:fit-content}.status-dot{width:10px;height:10px;border-radius:50%;background:var(--text-muted)}.connection-status.connected .status-dot{background:var(--success-color);box-shadow:0 0 8px var(--success-color)}.connection-status.connecting .status-dot{background:var(--warning-color);animation:pulse 1s infinite}.connection-status.error .status-dot{background:var(--danger-color)}.status-text{font-size:.875rem;color:var(--text-secondary)}.error-banner{background:#ef44441a;border:1px solid rgba(239,68,68,.3);border-radius:8px;padding:12px;margin-bottom:20px;color:#fca5a5}.connect-section{text-align:center;padding:20px 0}.connect-hint{color:var(--text-muted);margin-bottom:20px;font-size:.9rem}.connecting-section{text-align:center;padding:40px 20px}.spinner{width:40px;height:40px;border:3px solid var(--border-color);border-top-color:var(--accent-color);border-radius:50%;margin:0 auto 16px;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.device-info{background:var(--bg-primary);border-radius:8px;padding:16px;margin-bottom:20px}.info-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--border-color)}.info-row:last-child{border-bottom:none}.info-label{color:var(--text-muted)}.info-value{color:var(--text-primary);font-weight:500}.action-buttons{display:flex;flex-direction:column;gap:10px}.btn{padding:10px 16px;border:none;border-radius:6px;font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s ease;text-align:center}.btn-primary{background:var(--accent-color);color:var(--text-primary)}.btn-primary:hover{background:#3a8eef}.btn-success{background:var(--success-color);color:#000}.btn-success:hover{background:#3ace70}.btn-secondary{background:#444;color:var(--text-primary)}.btn-secondary:hover{background:#555}.btn-danger{background:var(--danger-color);color:var(--text-primary)}.btn-danger:hover{background:#dc2626}.btn-disabled{opacity:.5;cursor:not-allowed}@media(max-width:1024px){.app-container{flex-direction:column}.sidebar{width:100%;border-right:none;border-bottom:1px solid var(--border-color)}.content-grid{grid-template-columns:1fr}}.device-settings{padding:20px;background:var(--bg-secondary);border-radius:12px;border:1px solid var(--border-color)}.device-settings h3{margin:0 0 20px;color:var(--text-primary);font-size:1.25rem}.settings-section{margin-bottom:24px;padding-bottom:20px;border-bottom:1px solid var(--border-color)}.settings-section:last-of-type{border-bottom:none}.settings-section>label{display:block;margin-bottom:8px;color:var(--text-secondary);font-size:.875rem;font-weight:500}.settings-section input[type=text],.settings-section input[type=password]{width:100%;padding:10px 12px;background:var(--bg-tertiary);border:1px solid #444;border-radius:6px;color:var(--text-primary);font-size:.9rem;box-sizing:border-box}.settings-section input:focus{outline:none;border-color:var(--accent-color)}.settings-section .input-hint{display:block;margin-top:6px;color:var(--text-muted);font-size:.75rem}.settings-section .show-password{margin-top:10px;font-size:.85rem;display:flex;align-items:center;gap:6px;color:var(--text-secondary);cursor:pointer}.settings-btn{margin-top:12px;padding:10px 20px;background:linear-gradient(135deg,var(--accent-color),#7c3aed);border:none;border-radius:6px;color:var(--text-primary);font-size:.9rem;font-weight:500;cursor:pointer;transition:opacity .2s}.settings-btn:hover{opacity:.9}.settings-info{padding:12px;background:var(--bg-tertiary);border-radius:8px;border-left:3px solid var(--accent-color)}.settings-info p{margin:0;color:var(--text-muted);font-size:.85rem}.settings-placeholder{padding:40px;text-align:center;color:var(--text-muted)}.editor-note{color:var(--text-muted);font-size:.85rem;margin-bottom:16px;padding:10px;background:var(--bg-tertiary);border-radius:6px;border-left:3px solid var(--accent-color)}.num-input{width:100%;padding:10px 12px;background:var(--bg-tertiary);border:1px solid #444;border-radius:6px;color:var(--text-primary);font-size:.9rem}.num-input:focus{outline:none;border-color:var(--accent-color)}.two-step-group{display:grid;grid-template-columns:1fr 1fr;gap:20px}.step-section{padding:15px;background:var(--bg-tertiary);border-radius:8px;border:1px solid var(--border-color)}.step-section h4{margin:0 0 12px;color:var(--accent-color);font-size:1rem}@media(max-width:600px){.two-step-group{grid-template-columns:1fr}}