/* ================================================================
   PHONE CARD — Video 9:16 dentro de un marco de celular, con
   botón de audio (silencia las demás al activar una)
   ================================================================ */

.phone-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

@media (min-width: 640px) {
    .phone-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .phone-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.phone-card {
    padding: 14px;
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 22px;
    transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.phone-card:hover {
    transform: translateY(-6px);
    border-color: rgba(255, 0, 0, 0.4);
    box-shadow: 0 0 25px rgba(255, 0, 0, 0.15);
}

.phone-card__frame {
    position: relative;
    aspect-ratio: 9 / 16;
    overflow: hidden;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 20px;
}

.phone-card__frame::before {
    content: "";
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 56px;
    height: 14px;
    border-radius: var(--radius-full);
    background-color: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.08);
    z-index: 2;
}

.phone-card__frame video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.phone-card__audio {
    position: absolute;
    bottom: 10px;
    right: 10px;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.2);
    background-color: rgba(0, 0, 0, 0.45);
    color: var(--color-accent);
    font-size: var(--text-base);
    cursor: pointer;
    display: grid;
    place-items: center;
    backdrop-filter: blur(6px);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
    z-index: 3;
}

.phone-card__audio:hover {
    border-color: rgba(255, 0, 0, 0.35);
    box-shadow: 0 0 18px rgba(255, 0, 0, 0.12);
}

.phone-card__desc {
    margin-top: var(--space-md);
    font-size: var(--text-xs);
    line-height: 1.5;
}