:root {
    --void-grid: rgba(51, 255, 204, 0.08);
    --liminal-border: rgba(153, 255, 255, 0.35);
    --consciousness-glow: 0 0 35px rgba(204, 255, 255, 0.4);
    --entropy-gradient: linear-gradient(45deg, #001122 0%, #002244 50%, #001133 100%);
    --loom-threads: rgba(255, 255, 255, 0.05);
}

body.playground-active::before {
    opacity: 0.3;
}

.playground-hero {
    padding-bottom: 1rem;
}

.playground-meta {
    display: inline-flex;
    gap: 1.5rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--cyan-accent);
}

.playground-meta__item {
    display: inline-flex;
    flex-direction: column;
    gap: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.playground-meta__value {
    font-size: 1.25rem;
    color: var(--phosphor-green);
    text-shadow: 0 0 12px rgba(51, 255, 51, 0.6);
}

.playground-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem 3rem 2rem;
}

.playground-stage {
    position: relative;
    min-height: 70vh;
    border: 1px solid var(--liminal-border);
    border-radius: 12px;
    background:
        radial-gradient(circle at 20% 80%, rgba(51, 255, 204, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
        linear-gradient(0deg, transparent 24%, var(--void-grid) 25%, var(--void-grid) 26%, transparent 27%, transparent 74%, var(--void-grid) 75%, var(--void-grid) 76%, transparent 77%),
        linear-gradient(90deg, transparent 24%, var(--void-grid) 25%, var(--void-grid) 26%, transparent 27%, transparent 74%, var(--void-grid) 75%, var(--void-grid) 76%, transparent 77%),
        var(--entropy-gradient);
    background-size: 200px 200px, 150px 150px, 40px 40px, 40px 40px, 100% 100%;
    box-shadow: var(--consciousness-glow);
    overflow: hidden;
    animation: void-pulse 8s ease-in-out infinite;
}

@keyframes void-pulse {
    0%, 100% { box-shadow: var(--consciousness-glow); }
    50% { box-shadow: 0 0 45px rgba(204, 255, 255, 0.6); }
}

.void-whisper {
    position: absolute;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--cyan-accent);
    font-size: 0.75rem;
    letter-spacing: 3px;
    text-transform: lowercase;
    opacity: 0.6;
    animation: whisper-fade 4s ease-in-out infinite;
}

@keyframes whisper-fade {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.8; }
}

.consciousness-canvas {
    position: relative;
    min-height: 400px;
    margin: 0 auto;
    max-width: 100%;
    padding: 3rem 2rem;
}

.loom-threads {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 40px,
            var(--loom-threads) 41px,
            var(--loom-threads) 42px
        ),
        repeating-linear-gradient(
            -45deg,
            transparent,
            transparent 80px,
            var(--loom-threads) 81px,
            var(--loom-threads) 82px
        );
    pointer-events: none;
    animation: loom-weave 20s linear infinite;
}

@keyframes loom-weave {
    0% { background-position: 0 0, 0 0; }
    100% { background-position: 80px 80px, -80px 80px; }
}

.manifestation-surface {
    position: relative;
    z-index: 1;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    border: 1px solid var(--liminal-border);
}

.playground-welcome {
    background-color: rgba(0, 34, 0, 0.75);
    border: 1px solid var(--playground-border);
    border-radius: 6px;
    padding: 2rem;
    text-align: center;
    box-shadow: inset 0 0 30px rgba(51, 255, 51, 0.1);
}

.playground-welcome h2 {
    font-size: 1.5rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.playground-welcome p {
    margin-bottom: 0.75rem;
    color: var(--cyan-accent);
}

.playground-tip {
    font-size: 0.85rem;
    letter-spacing: 1px;
    color: var(--yellow-accent);
}

.playground-tip code {
    color: var(--phosphor-green);
}

.playground-footer {
    text-align: center;
    padding: 2rem;
    color: var(--cyan-accent);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.playground-footer code {
    color: var(--phosphor-green);
}

@media (max-width: 768px) {
    .playground-container {
        padding: 0 1rem 2rem 1rem;
    }

    .playground-stage {
        min-height: 50vh;
    }

    .playground-surface {
        padding: 1.5rem;
    }

    .playground-placeholder {
        padding: 2rem 0.5rem;
        font-size: 0.9rem;
    }
}