/* Minimal Space Theme */

:root {
    --bg: #0a0a14;
    --panel: rgba(0, 20, 40, 0.85);
    --border: rgba(0, 255, 200, 0.3);
    --cyan: #00ffc8;
    --green: #00ff64;
    --text: #e0e0e0;
    --text-dim: #607080;
    --glow: rgba(0, 255, 200, 0.4);
}

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

body {
    font-family: 'Courier New', monospace;
    background: var(--bg);
    color: var(--text);
    overflow: hidden;
}

/* Full screen canvas */
#physics-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: crosshair;
}

/* Header - top center */
.header {
    position: fixed;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.header h1 {
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--cyan);
    letter-spacing: 2px;
    text-transform: uppercase;
    text-shadow: 0 0 15px var(--glow);
    opacity: 0.9;
}

/* Capabilities - horizontal row below title */
.capabilities {
    display: flex;
    flex-direction: row;
    gap: 0.5rem;
}

.cap {
    background: var(--panel);
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
    max-width: 180px;
    overflow: hidden;
}

.cap h2 {
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--green);
    letter-spacing: 1px;
    text-transform: uppercase;
    white-space: nowrap;
}

.cap p {
    font-size: 0.65rem;
    color: var(--text-dim);
    line-height: 1.4;
    max-height: 0;
    opacity: 0;
    margin-top: 0;
    transition: all 0.3s ease;
}

.cap:hover,
.cap:focus {
    border-color: var(--cyan);
    box-shadow: 0 0 20px rgba(0, 255, 200, 0.2);
    max-width: 280px;
}

.cap:hover p,
.cap:focus p {
    max-height: 60px;
    opacity: 1;
    margin-top: 0.5rem;
}

.cap:focus {
    outline: none;
}

/* Footer - bottom, minimal */
.footer {
    position: fixed;
    bottom: 1rem;
    left: 1rem;
    right: 1rem;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.7rem;
    pointer-events: none;
}

.footer > * {
    pointer-events: auto;
}

.stats {
    color: var(--green);
    background: var(--panel);
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--border);
    border-radius: 2px;
}

.email {
    color: var(--text-dim);
    text-decoration: none;
    transition: color 0.2s;
}

.email:hover {
    color: var(--cyan);
}

.copy {
    color: var(--text-dim);
    opacity: 0.6;
}

/* Hint - bottom center, fades */
.hint {
    position: fixed;
    bottom: 4rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    font-size: 0.65rem;
    color: var(--text-dim);
    letter-spacing: 1px;
    text-transform: uppercase;
    opacity: 0.7;
    transition: opacity 0.5s;
    pointer-events: none;
}

body.interacted .hint {
    opacity: 0;
}

/* Mobile adjustments */
@media (max-width: 600px) {
    .header {
        top: 0.5rem;
        width: calc(100% - 1rem);
        padding: 0 0.5rem;
    }

    .header h1 {
        font-size: 0.75rem;
        letter-spacing: 1px;
    }

    .capabilities {
        flex-direction: column;
        width: 100%;
        align-items: center;
    }

    .cap {
        padding: 0.35rem 0.6rem;
        max-width: none;
        width: 100%;
        text-align: center;
    }

    .cap h2 {
        font-size: 0.6rem;
    }

    .cap:hover,
    .cap:focus {
        max-width: none;
    }

    .footer {
        flex-direction: column;
        gap: 0.4rem;
        align-items: center;
        text-align: center;
    }

    .stats {
        font-size: 0.6rem;
        padding: 0.3rem 0.6rem;
    }

    .email {
        font-size: 0.6rem;
    }

    .copy {
        display: none;
    }

    .hint {
        bottom: 5.5rem;
        font-size: 0.55rem;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .cap { transition: none; }
    .cap p { transition: none; }
}