/* ========== PONG LAB STYLES ========== */

.pong-main {
    max-width: 900px;
    margin: 0 auto;
    padding: 4.5rem 1.5rem 2rem;
    position: relative;
    z-index: 1;
}

/* Hero — compact to keep game above the fold */
.pong-hero {
    text-align: center;
    margin-bottom: 0.6rem;
}

.pong-title {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--neon-cyan);
    text-shadow: 0 0 30px var(--cyan-text-glow);
    margin-bottom: 0.2rem;
    letter-spacing: 2px;
}

.pong-subtitle {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Algorithm tabs */
.algo-tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 0.4rem;
}

.algo-tab {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 1px;
    padding: 0.5rem 1.2rem;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.algo-tab:hover {
    color: var(--neon-cyan);
    border-color: var(--neon-cyan);
}

.algo-tab.active {
    color: var(--neon-cyan);
    border-color: var(--neon-cyan);
    background: rgba(0, 240, 255, 0.08);
    text-shadow: 0 0 8px var(--cyan-text-glow);
    box-shadow: 0 0 12px rgba(0, 240, 255, 0.15);
}

/* HUD bar */
.pong-hud {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    padding: 0.4rem 1rem;
    margin-bottom: 0.3rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 1px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
}

.hud-item {
    color: var(--text-primary);
}

.hud-label {
    color: var(--text-secondary);
    margin-right: 0.3rem;
}

#hud-algo {
    color: var(--neon-cyan);
}

#hud-winrate {
    color: var(--neon-pink);
}

#hud-epsilon {
    color: var(--neon-green);
}

#hud-bot {
    color: var(--neon-yellow);
}

/* Canvas container */
.canvas-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    margin-bottom: 1rem;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.1);
}

#pong-canvas {
    display: block;
    width: 100%;
    height: 100%;
    background: #0a0a12;
    cursor: none;
}

/* Overlay */
.canvas-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.6);
    pointer-events: none;
    transition: opacity 0.5s ease;
    z-index: 2;
}

.canvas-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.canvas-overlay p {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--neon-green);
    text-shadow: 0 0 12px rgba(57, 255, 20, 0.5);
    letter-spacing: 2px;
}

.canvas-overlay .overlay-sub {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--neon-cyan);
    margin-top: 0.5rem;
    text-shadow: 0 0 8px var(--cyan-text-glow);
    letter-spacing: 3px;
}

/* Train controls */
.train-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    margin-bottom: 0.4rem;
}

.train-btn {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 1px;
    padding: 0.45rem 1rem;
    background: transparent;
    color: var(--neon-green);
    border: 1px solid var(--neon-green);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.train-btn:hover {
    background: rgba(57, 255, 20, 0.1);
    box-shadow: 0 0 12px rgba(57, 255, 20, 0.2);
}

.train-btn.training {
    color: var(--neon-pink);
    border-color: var(--neon-pink);
    animation: pulse-border 1s ease-in-out infinite;
}

.train-btn.training:hover {
    background: rgba(255, 0, 110, 0.1);
    box-shadow: 0 0 12px rgba(255, 0, 110, 0.2);
}

@keyframes pulse-border {
    0%, 100% { border-color: var(--neon-pink); }
    50% { border-color: transparent; }
}

.train-select {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.4rem 0.6rem;
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    cursor: pointer;
}

.train-select option {
    background: var(--bg-primary, #0a0a12);
    color: var(--text-primary);
}

.train-progress {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--neon-green);
    min-width: 4rem;
}

/* Algorithm info card */
.algo-info {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 1.2rem 1.5rem;
    margin-bottom: 2rem;
}

.algo-info-title {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--neon-cyan);
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
}

.algo-info-text {
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Responsive */
@media (max-width: 640px) {
    .pong-main {
        padding: 5rem 1rem 2rem;
    }

    .pong-title {
        font-size: 1.8rem;
    }

    .algo-tabs {
        gap: 0.3rem;
    }

    .algo-tab {
        font-size: 0.7rem;
        padding: 0.4rem 0.8rem;
    }

    .pong-hud {
        gap: 0.8rem;
        font-size: 0.65rem;
        flex-wrap: wrap;
    }

    .canvas-overlay p {
        font-size: 1rem;
    }

    .train-controls {
        flex-wrap: wrap;
    }

    .train-btn {
        font-size: 0.7rem;
        padding: 0.35rem 0.8rem;
    }

    #pong-canvas {
        cursor: default;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .pong-title {
        text-shadow: none;
    }
    .algo-tab.active {
        text-shadow: none;
        box-shadow: none;
    }
}