:root {
    --bg-color: #F9F9F6; /* Color hueso/papel */
    --text-color: #1A1A1A; /* Tinta oscura */
    --line-color: #E5E5E0;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Georgia', serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-sans);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.lab-container {
    width: 100%;
    max-width: 720px;
    padding: 2rem;
    box-sizing: border-box;
}

header h1 {
    font-family: var(--font-serif);
    font-weight: normal;
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

header p {
    color: #666;
    margin-top: 0;
    font-size: 1rem;
}

.canvas-container {
    width: 100%;
    height: 460px;
    background: #FFFFFF;
    border: 1px solid var(--line-color);
    border-radius: 8px;
    margin: 2rem 0;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.control-group {
    display: flex;
    flex-direction: column;
}

.control-group label {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    display: flex;
    justify-content: space-between;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mono {
    font-family: var(--font-mono);
    color: #666;
}

input[type="range"] {
    width: 100%;
    accent-color: var(--text-color);
    cursor: pointer;
}

.explanation {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #555;
    border-top: 1px solid var(--line-color);
    padding-top: 1.5rem;
}

@media (max-width: 600px) {
    .controls {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .canvas-container {
        height: 500px;
    }
}