:root {
    --bg-color: #121214;
    --panel-bg: #1e1e24;
    --border-color: #33333c;
    --text-color: #e0e0e0;
    --text-muted: #888894;
    --accent-color: #4a90e2;
    
    --color-red: #ff4757;
    --color-green: #2ed573;
    --color-blue: #1e90ff;
    
    --color-lamp1: #ff6b81;
    --color-lamp2: #7bed9f;
    --color-lamp3: #70a1ff;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.5;
    overflow-x: hidden;
}

header {
    text-align: center;
    padding: 1rem 2rem;
    background: linear-gradient(to right, #1a1a24, #121214);
    border-bottom: 1px solid var(--border-color);
}

header h1 {
    font-weight: 600;
    font-size: 1.8rem;
    background: -webkit-linear-gradient(135deg, #4a90e2, #ff4757);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.split-pane {
    display: flex;
    height: calc(100vh - 80px);
}

.left-pane {
    flex: 2;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-y: auto;
}

.right-pane {
    flex: 1;
    padding: 20px;
    background-color: #16161a;
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-y: auto;
}

.graph-container {
    background-color: var(--panel-bg);
    border-radius: 12px;
    padding: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    border: 1px solid var(--border-color);
}

.graph-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.graph-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
}

.controls {
    display: flex;
    gap: 8px;
    align-items: center;
    font-size: 0.85rem;
}

.controls button {
    background-color: #2a2a35;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 5px 10px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
    font-size: 0.8rem;
}

.controls button:hover {
    background-color: #3a3a45;
    border-color: var(--accent-color);
}

.controls label {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
}

.canvas-wrapper {
    width: 100%;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    background-color: #0a0a0c;
    border: 1px solid #000;
}

canvas {
    width: 100%;
    height: 180px;
    display: block;
    cursor: crosshair;
    touch-action: none;
}

.panel {
    background-color: var(--panel-bg);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid var(--border-color);
}

.panel h2 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    color: var(--accent-color);
}

.panel .description {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 15px;
}

.vector-display {
    font-family: monospace;
    font-size: 1.2rem;
    background-color: #0a0a0c;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    letter-spacing: 1px;
    border: 1px solid var(--border-color);
}

.matrix-table {
    width: 100%;
    border-collapse: collapse;
    background-color: #0a0a0c;
    border-radius: 8px;
    overflow: hidden;
}

.matrix-table td {
    padding: 12px;
    text-align: center;
    font-family: monospace;
    font-size: 1.1rem;
    border: 1px solid var(--border-color);
}

.color-patch-container {
    margin-top: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.color-patch-container h3 {
    font-size: 1rem;
    font-weight: 400;
}

.color-patch {
    width: 80px;
    height: 80px;
    background-color: #000;
    border-radius: 8px;
    border: 2px solid #fff;
    box-shadow: 0 0 15px rgba(255,255,255,0.1);
    transition: border-color 0.2s, background-color 0.1s;
}

.reproduction-row {
    display: flex;
    align-items: center;
    gap: 15px;
}

.reproduction-row .vector-display {
    flex: 1;
    margin-bottom: 0;
}

.small-patch {
    width: 45px;
    height: 45px;
}

.gamut-perfect {
    border-color: #2ed573 !important;
}

.gamut-clipped {
    border-color: #ffa502 !important;
}

/* Responsiveness */
@media (max-width: 1024px) {
    .split-pane {
        flex-direction: column;
        height: auto;
    }
    .left-pane, .right-pane {
        width: 100%;
        border-left: none;
    }
}