* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Dark Theme - Matching SPORE UI */
    --bg-primary: linear-gradient(135deg, #2c3e50 0%, #34495e 50%, #1a252f 100%);
    --bg-secondary: rgba(0, 0, 0, 0.3);
    --bg-tertiary: rgba(0, 0, 0, 0.2);
    --bg-hover: rgba(0, 0, 0, 0.15);
    --bg-overlay: rgba(0, 0, 0, 0.7);
    
    --text-primary: #ecf0f1;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-tertiary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.6);
    
    --border-primary: rgba(255, 255, 255, 0.1);
    --border-secondary: rgba(255, 255, 255, 0.15);
    --border-hover: rgba(255, 255, 255, 0.2);
    
    --accent-primary: #4ade80;
    --accent-secondary: #60a5fa;
    --accent-warning: #fbbf24;
    --accent-error: #f87171;
    --accent-success: #4caf50;
    
    --shadow-primary: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-secondary: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.6);
    
    --backdrop-blur: blur(10px);

    /* LEDLab specific colors */
    --matrix-bg: #000000;
    --pixel-on: #4ade80;
    --pixel-off: rgba(0, 0, 0, 0.3);
    --pixel-dim: #22c55e;
    --control-bg: rgba(0, 0, 0, 0.2);
    --preset-active: #4ade80;
    --node-connected: #22c55e;
    --node-disconnected: #ef4444;
}

[data-theme="light"] {
    --bg-primary: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 50%, #e2e8f0 100%);
    --bg-secondary: rgba(255, 255, 255, 0.1);
    --bg-tertiary: rgba(255, 255, 255, 0.05);
    --bg-hover: rgba(255, 255, 255, 0.15);
    --bg-overlay: rgba(0, 0, 0, 0.3);
    
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --text-muted: #94a3b8;
    
    --border-primary: rgba(148, 163, 184, 0.2);
    --border-secondary: rgba(148, 163, 184, 0.3);
    --border-hover: rgba(148, 163, 184, 0.4);
    
    --accent-primary: #3b82f6;
    --accent-secondary: #1d4ed8;
    --accent-warning: #f59e0b;
    --accent-error: #dc2626;
    --accent-success: #059669;
    
    --shadow-primary: 0 8px 32px rgba(148, 163, 184, 0.1);
    --shadow-secondary: 0 4px 16px rgba(148, 163, 184, 0.05);
    --shadow-hover: 0 12px 40px rgba(148, 163, 184, 0.15);
    
    --backdrop-blur: blur(20px);

    /* Light theme LEDLab colors */
    --matrix-bg: #f8fafc;
    --pixel-on: #3b82f6;
    --pixel-off: #f1f5f9;
    --pixel-dim: #60a5fa;
    --control-bg: rgba(255, 255, 255, 0.1);
    --preset-active: #3b82f6;
    --node-connected: #059669;
    --node-disconnected: #dc2626;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-primary);
    background-attachment: fixed;
    height: 100vh;
    padding: 1rem;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.container {
    max-width: none;
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    flex: 1;
    max-height: calc(100vh - 2rem);
    overflow: hidden;
    gap: 1rem;
}

/* Main Navigation - Matching SPORE UI */
.main-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--border-primary);
    backdrop-filter: var(--backdrop-blur);
    box-shadow: var(--shadow-primary);
    margin-bottom: 1rem;
}

.nav-left {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.nav-tab {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    padding: 0.625rem 1.25rem;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: none;
}

.nav-tab:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-tab.active {
    background: rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.nav-right {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    transform: scale(1.05);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    stroke-width: 2;
    transition: transform 0.3s ease;
}

.theme-toggle:hover svg {
    transform: rotate(15deg);
}

/* View Content */
.view-content {
    display: none;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

.view-content.active {
    display: flex;
    flex-direction: row;
    gap: 1.5rem;
}

/* Main content layout */
.ledlab-main {
    display: flex;
    flex: 1;
    position: relative;
    overflow: hidden;
    min-height: 0;
}

/* Matrix Grid Section - Full Width */
.matrix-grid-section {
    flex: 1;
    background: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--border-primary);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    min-height: 0;
    box-shadow: var(--shadow-primary);
    backdrop-filter: var(--backdrop-blur);
}

.matrix-grid-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.matrix-grid-controls {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* Node Canvas Grid */
.node-canvas-grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    grid-auto-rows: minmax(min(200px, calc((100vh - 10rem) / 3)), max(200px, calc((100vh - 10rem) / 2)));
    gap: 0.75rem;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0.5rem;
    align-items: stretch;
}

.node-canvas-item {
    background: var(--matrix-bg);
    border-radius: 12px;
    border: 2px solid var(--border-secondary);
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    height: 100%;
    position: relative;
    overflow: hidden;
}

.node-canvas-item:hover {
    border-color: var(--border-hover);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
}

.node-canvas-item.selected {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.2), 0 8px 24px rgba(0, 0, 0, 0.4);
    transform: translateY(-2px);
}

.node-canvas-item.streaming {
    border-color: var(--accent-primary);
}

.node-canvas-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    padding-bottom: 0.375rem;
    border-bottom: 1px solid var(--border-primary);
    flex-shrink: 0;
}

.node-canvas-title {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.node-canvas-ip {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

.node-canvas-status {
    font-size: 0.6rem;
    padding: 0.2rem 0.4rem;
    border-radius: 6px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.node-canvas-status.connected {
    background: rgba(34, 197, 94, 0.15);
    color: var(--node-connected);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.node-canvas-status.streaming {
    background: rgba(74, 222, 128, 0.15);
    color: var(--accent-primary);
    border: 1px solid rgba(74, 222, 128, 0.3);
    animation: pulse-glow 2s ease-in-out infinite;
}

.node-canvas-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--matrix-bg);
    border-radius: 8px;
    position: relative;
    overflow: hidden;
    min-height: 0;
    width: 100%;
    height: 100%;
}

.node-canvas {
    image-rendering: pixelated;
    image-rendering: -moz-crisp-edges;
    image-rendering: crisp-edges;
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* Old Matrix display section - kept for backwards compatibility */
.matrix-section {
    flex: 1;
    background: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--border-primary);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    min-height: 0;
    box-shadow: var(--shadow-primary);
    backdrop-filter: var(--backdrop-blur);
}

/* Settings Section */
.settings-section {
    flex: 1;
    background: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--border-primary);
    padding: 2rem;
    overflow-y: auto;
    box-shadow: var(--shadow-primary);
    backdrop-filter: var(--backdrop-blur);
}

.settings-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-primary);
}

.settings-group {
    margin-bottom: 2rem;
}

.settings-group h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.settings-group h3::before {
    content: '';
    width: 4px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 2px;
}

.matrix-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.matrix-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.matrix-info {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

.matrix-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--matrix-bg);
    border-radius: 12px;
    border: 1px solid var(--border-secondary);
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.3);
}

.matrix-canvas {
    image-rendering: pixelated;
    image-rendering: -moz-crisp-edges;
    image-rendering: crisp-edges;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* Floating Control Panel */
.floating-controls {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 320px;
    max-width: calc(100vw - 4rem);
    max-height: calc(100vh - 12rem);
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border-primary);
    padding: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.6);
    backdrop-filter: var(--backdrop-blur);
    z-index: 100;
    animation: slideInFromRight 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.floating-controls-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-primary);
    background: var(--bg-tertiary);
}

.control-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
}

.control-title .node-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--node-connected);
    display: inline-block;
}

.btn-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    transition: all 0.2s ease;
    line-height: 1;
}

.btn-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.floating-controls-content {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* Old Control panel section - kept for backwards compatibility */
.control-section {
    width: 380px;
    min-width: 320px;
    background: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--border-primary);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    overflow-y: auto;
    max-height: calc(100vh - 8rem);
    box-shadow: var(--shadow-primary);
    backdrop-filter: var(--backdrop-blur);
}

.control-group {
    background: transparent;
    border-radius: 8px;
    padding: 0.5rem 0;
    border: none;
    border-bottom: 1px solid var(--border-primary);
    transition: all 0.2s ease;
}

.control-group:last-child {
    border-bottom: none;
}

.control-group:hover {
    background: rgba(255, 255, 255, 0.02);
}

.control-group > .btn {
    width: 100%;
    margin-top: 0.25rem;
}

.control-group-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.control-group-title::before {
    content: '';
    width: 4px;
    height: 16px;
    background: var(--accent-primary);
    border-radius: 2px;
}

.control-group-subtitle {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.375rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.control-group-subtitle::before {
    content: '';
    width: 2px;
    height: 10px;
    background: var(--accent-primary);
    border-radius: 1px;
}

/* Node list */
.node-controls {
    margin-bottom: 1rem;
}

.node-list {
    max-height: 200px;
    overflow-y: auto;
    overflow-x: hidden;
}

.node-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
    margin-bottom: 0.5rem;
}

.node-item:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-secondary);
}

.node-item.connected {
    border-left: 3px solid var(--node-connected);
}

.node-item.disconnected {
    border-left: 3px solid var(--node-disconnected);
}

.node-item.selected {
    background: rgba(74, 222, 128, 0.1);
    border-left: 3px solid var(--accent-primary);
    border-color: rgba(74, 222, 128, 0.3);
    box-shadow: 0 2px 8px rgba(74, 222, 128, 0.2);
}

.node-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--node-disconnected);
}

.node-indicator.connected {
    background: var(--node-connected);
}

.node-info {
    flex: 1;
    font-size: 0.875rem;
}

.node-ip {
    font-weight: 600;
    color: var(--text-primary);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

.node-status {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Preset controls */
.preset-select {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-secondary);
    border-radius: 6px;
    padding: 0.5rem;
    color: var(--text-primary);
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.2s ease;
    cursor: pointer;
    margin-bottom: 0.5rem;
}

.preset-select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 0.5rem;
}

.preset-select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.15);
    background: var(--bg-hover);
}

.preset-select:hover {
    border-color: var(--border-tertiary);
    background: var(--bg-hover);
}

.preset-controls {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    min-height: 1.5rem;
    position: relative;
}

.preset-controls:empty::before {
    content: 'Select a preset to see parameters';
    color: var(--text-tertiary);
    font-size: 0.875rem;
    font-style: italic;
    position: absolute;
    top: 0;
    left: 0;
}

.global-controls {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.preset-control {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.preset-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.preset-input {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-secondary);
    border-radius: 4px;
    padding: 0.4rem 0.5rem;
    color: var(--text-primary);
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.preset-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.15);
    background: var(--bg-hover);
}

.preset-input:hover {
    border-color: var(--border-tertiary);
    background: var(--bg-hover);
}

.preset-slider {
    width: 100%;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    transition: background 0.2s ease;
}

.preset-slider:hover {
    background: var(--bg-hover);
}

.preset-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.preset-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 2px 8px rgba(74, 222, 128, 0.4);
}

.preset-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.preset-slider::-moz-range-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 2px 8px rgba(74, 222, 128, 0.4);
}

.preset-value {
    min-width: 3rem;
    text-align: right;
    font-weight: 600;
    color: var(--text-primary);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.875rem;
    transition: color 0.2s ease;
}

/* Buttons - Spore UI inspired styling */
.btn {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-secondary);
    border-radius: 6px;
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    min-height: 2.25rem;
    white-space: nowrap;
    backdrop-filter: var(--backdrop-blur);
}

.btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-tertiary);
    color: var(--text-primary);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.btn:active {
    background: var(--bg-tertiary);
    transform: translateY(0);
    box-shadow: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: transparent;
    border-color: var(--border-primary);
    color: var(--text-secondary);
    transform: none;
    box-shadow: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary) 0%, #22c55e 100%);
    color: white;
    border-color: var(--accent-primary);
    box-shadow: 0 2px 8px rgba(74, 222, 128, 0.25);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #22c55e 0%, var(--accent-primary) 100%);
    border-color: #22c55e;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 222, 128, 0.35);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(74, 222, 128, 0.25);
}

.btn-stop {
    background: linear-gradient(135deg, var(--accent-error) 0%, #ef4444 100%);
    color: white;
    border-color: var(--accent-error);
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.25);
}

.btn-stop:hover {
    background: linear-gradient(135deg, #ef4444 0%, var(--accent-error) 100%);
    border-color: #ef4444;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.35);
}

.btn-stop:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(239, 68, 68, 0.25);
}

.btn-icon {
    font-size: 1rem;
    line-height: 1;
}

.btn-text {
    line-height: 1;
}

.btn-secondary {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    color: var(--text-secondary);
    border-color: var(--border-secondary);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    color: var(--text-primary);
    border-color: var(--border-tertiary);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    min-height: 2.25rem;
}

.btn-container {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Matrix configuration */
.matrix-config {
    display: flex;
    gap: 1rem;
    align-items: end;
}

.matrix-input {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.matrix-input label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

.matrix-input input {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-secondary);
    border-radius: 6px;
    padding: 0.625rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    width: 80px;
    transition: all 0.2s ease;
}

.matrix-input input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.15);
    background: var(--bg-hover);
}

.matrix-input input:hover {
    border-color: var(--border-tertiary);
    background: var(--bg-hover);
}


/* Status indicators */
.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    padding: 0.375rem 0.875rem;
    border-radius: 16px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.2s ease;
}

.status-connected {
    background: rgba(34, 197, 94, 0.15);
    color: var(--node-connected);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.status-disconnected {
    background: rgba(239, 68, 68, 0.15);
    color: var(--node-disconnected);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.status-streaming {
    background: rgba(74, 222, 128, 0.15);
    color: var(--accent-primary);
    border: 1px solid rgba(74, 222, 128, 0.3);
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(74, 222, 128, 0.3);
    }
    50% {
        box-shadow: 0 0 15px rgba(74, 222, 128, 0.5);
    }
}

/* Loading and error states */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    color: var(--text-secondary);
    font-size: 1.125rem;
}

.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 8px;
    padding: 1rem;
    color: var(--accent-error);
    text-align: center;
}

.empty-state {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    color: var(--text-secondary);
    font-style: italic;
}

/* Scrollbar styling */
.control-section::-webkit-scrollbar,
.floating-controls-content::-webkit-scrollbar,
.node-canvas-grid::-webkit-scrollbar {
    width: 6px;
}

.control-section::-webkit-scrollbar-track,
.floating-controls-content::-webkit-scrollbar-track,
.node-canvas-grid::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 3px;
}

.control-section::-webkit-scrollbar-thumb,
.floating-controls-content::-webkit-scrollbar-thumb,
.node-canvas-grid::-webkit-scrollbar-thumb {
    background: var(--border-primary);
    border-radius: 3px;
}

.control-section::-webkit-scrollbar-thumb:hover,
.floating-controls-content::-webkit-scrollbar-thumb:hover,
.node-canvas-grid::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* Responsive adjustments */
@media (min-width: 1600px) {
    .node-canvas-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        grid-auto-rows: minmax(220px, 1fr);
    }
}

@media (max-width: 1400px) {
    .node-canvas-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        grid-auto-rows: minmax(180px, 1fr);
    }
}

@media (max-width: 1200px) {
    .node-canvas-grid {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
        grid-auto-rows: minmax(min(160px, calc((100vh - 8rem) / 3)), max(160px, calc((100vh - 8rem) / 2)));
        gap: 0.5rem;
    }
    
    .node-canvas-item {
        padding: 0.625rem;
    }
    
    .node-canvas-ip {
        font-size: 0.75rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 0.5rem;
        gap: 0.5rem;
    }

    .ledlab-main {
        flex-direction: column;
        gap: 0.5rem;
    }

    .node-canvas-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        grid-auto-rows: minmax(min(140px, calc((100vh - 7rem) / 3)), max(140px, calc((100vh - 7rem) / 2)));
        gap: 0.5rem;
        padding: 0.25rem;
    }
    
    .node-canvas-item {
        padding: 0.5rem;
    }
    
    .node-canvas-header {
        margin-bottom: 0.375rem;
        padding-bottom: 0.25rem;
    }
    
    .node-canvas-ip {
        font-size: 0.7rem;
    }
    
    .node-canvas-status {
        font-size: 0.55rem;
        padding: 0.15rem 0.35rem;
    }

    .floating-controls {
        position: fixed;
        top: auto;
        bottom: 0;
        right: 0;
        left: 0;
        width: 100%;
        max-width: 100%;
        max-height: 70vh;
        border-radius: 16px 16px 0 0;
        animation: slideInFromBottom 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    @keyframes slideInFromBottom {
        from {
            opacity: 0;
            transform: translateY(20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .control-section {
        width: 100%;
        min-width: unset;
        max-height: 50vh;
    }

    .matrix-section {
        min-height: 50vh;
    }

    .btn-container {
        gap: 0.5rem;
    }

    .matrix-config {
        flex-wrap: wrap;
        gap: 0.75rem;
    }

    .matrix-input {
        min-width: 100px;
    }
}

@media (max-width: 480px) {
    .ledlab-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .matrix-config {
        flex-direction: column;
        align-items: stretch;
    }

    .matrix-input {
        width: 100%;
    }

    .btn-container {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}

/* Animation keyframes */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-fade-in {
    animation: fadeIn 0.3s ease-out;
}