/* ============================================
   LAB — Sección del autómata (sin etiqueta)
   ============================================ */

.lab-section {
    background: var(--bg-color);
}

.lab-stage {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    border: 3px solid var(--accent-color);
    background: var(--bg-color);
    box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.15);
    overflow: hidden;
}

.lab-canvas {
    display: block;
    width: 100%;
    height: 460px;
    cursor: crosshair;
    touch-action: manipulation;
}

/* HUD críptico: números corriendo, sin decir qué es */
.lab-hud {
    position: absolute;
    top: 12px;
    left: 16px;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    font-family: inherit;
    font-size: 0.8rem;
    letter-spacing: 2px;
    color: var(--text-light);
    pointer-events: none;
    text-shadow: 0 0 6px var(--bg-color);
}

.hud-text {
    color: var(--accent-color);
    font-weight: 700;
}

/* Pista mínima, se desvanece */
.lab-hint {
    position: absolute;
    bottom: 44px;
    left: 50%;
    transform: translateX(-50%);
    font-family: inherit;
    font-size: 0.85rem;
    letter-spacing: 1px;
    color: var(--text-light);
    pointer-events: none;
    opacity: 0.85;
    transition: opacity 0.6s ease;
    text-shadow: 0 0 6px var(--bg-color);
}

.lab-hint::after {
    content: '_';
    animation: blink 0.7s infinite;
}

.lab-hint.hidden {
    opacity: 0;
}

/* Reset discreto */
.lab-reset {
    position: absolute;
    bottom: 12px;
    right: 14px;
    width: 34px;
    height: 34px;
    background: transparent;
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
    transition: var(--transition);
}

.lab-reset:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    transform: rotate(-90deg);
}

/* Selector de algoritmos (sólo el modelo laberinto) */
.lab-algos {
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
    max-width: 92%;
    z-index: 6;
}

.lab-algos.hidden {
    display: none;
}

.lab-algos button {
    background: rgba(0, 0, 0, 0.45);
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
    font-family: inherit;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    padding: 0.25rem 0.6rem;
    cursor: pointer;
    transition: var(--transition);
}

.lab-algos button:hover,
.lab-algos button.active {
    background: var(--accent-color);
    color: var(--bg-color);
    border-color: var(--accent-color);
}

/* Carrusel: flechas y puntitos */
.lab-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.4);
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
    font-size: 1.6rem;
    line-height: 1;
    cursor: pointer;
    z-index: 5;
    transition: var(--transition);
}

.lab-nav:hover {
    background: var(--accent-color);
    color: var(--bg-color);
}

.lab-nav.prev {
    left: 10px;
}

.lab-nav.next {
    right: 10px;
}

.lab-dots {
    position: absolute;
    bottom: 14px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 5;
}

.lab-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: transparent;
    border: 2px solid var(--accent-color);
    cursor: pointer;
    transition: var(--transition);
}

.lab-dots .dot.active {
    background: var(--accent-color);
    transform: scale(1.2);
}

@media (max-width: 768px) {
    .lab-canvas {
        height: 360px;
    }
}

@media (max-width: 480px) {
    .lab-canvas {
        height: 280px;
    }

    .lab-hud {
        font-size: 0.7rem;
    }
}