/* =========================================================
   ACCORDION GALLERY — vanilla port
   ========================================================= */
.accordion-gallery {
    --ag-accent: #ffffff;
    --ag-overlay: #060010;
    --ag-text: #ffffff;
    --ag-gap: 10px;
    --ag-radius: 16px;
    --ag-media-size: 320px;
    --ag-duration: 0.6s;
    --ag-ease: cubic-bezier(0.215, 0.61, 0.355, 1);

    display: flex;
    flex-direction: row;
    gap: var(--ag-gap);
    width: 100%;
    max-width: 100%;
    perspective: 1400px;
    perspective-origin: 50% 50%;
}

.accordion-gallery--vertical {
    flex-direction: column;
}

.ag-panel {
    position: relative;
    flex: 1 1 0;
    min-width: 0;
    min-height: 0;
    overflow: hidden;
    border-radius: var(--ag-radius);
    cursor: pointer;
    display: block;
    text-decoration: none;
    outline: none;
    transform-style: preserve-3d;
    transform-origin: center center;
    background: #0a0713;
    box-shadow: 0 10px 30px -18px rgba(0, 0, 0, 0.8);
    transition: flex-grow var(--ag-duration) var(--ag-ease), transform var(--ag-duration) var(--ag-ease);
    -webkit-tap-highlight-color: transparent;
}

.ag-panel:focus-visible {
    box-shadow:
        0 0 0 2px var(--ag-accent),
        0 10px 30px -18px rgba(0, 0, 0, 0.8);
}

.ag-panel__frame {
    position: absolute;
    inset: 0;
    overflow: hidden;
    border-radius: inherit;
}

.ag-panel__media {
    --ag-gray: 1;
    --ag-dim: 0.35;
    position: absolute;
    top: 50%;
    left: 50%;
    width: var(--ag-media-size);
    height: 100%;
    filter: grayscale(var(--ag-gray));
    transition: transform var(--ag-duration) var(--ag-ease), filter var(--ag-duration) var(--ag-ease);
}

.accordion-gallery--vertical .ag-panel__media {
    width: 100%;
    height: var(--ag-media-size);
}

.ag-panel__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    user-select: none;
    -webkit-user-drag: none;
}

.ag-panel__overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(180deg, transparent 45%, color-mix(in srgb, var(--ag-overlay) 78%, transparent) 100%),
        color-mix(in srgb, var(--ag-overlay) calc(var(--ag-dim, 0.35) * 100%), transparent);
    transition: background var(--ag-duration) var(--ag-ease);
}

.ag-panel__label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: min(80%, 360px);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 10px;
    pointer-events: none;
    z-index: 2;
}

.ag-panel__bar {
    flex: 0 0 auto;
    width: 40px;
    height: 3px;
    border-radius: 3px;
    background: var(--ag-accent);
    opacity: 0;
    transform: translateY(-10px);
    box-shadow: 0 0 12px color-mix(in srgb, var(--ag-accent) 60%, transparent);
    transition: opacity calc(var(--ag-duration) * 0.6) var(--ag-ease), transform calc(var(--ag-duration) * 0.6) var(--ag-ease);
}

.ag-panel__text {
    color: var(--ag-text);
    font-family: inherit;
    font-weight: 700;
    font-size: clamp(1.2rem, 2vw, 1.7rem);
    line-height: 1.2;
    letter-spacing: 0.01em;
    opacity: 0;
    transform: translateY(-10px);
    text-shadow: 0 2px 14px rgba(0, 0, 0, 0.55);
    transition: opacity calc(var(--ag-duration) * 0.6) var(--ag-ease), transform calc(var(--ag-duration) * 0.6) var(--ag-ease);
}

.ag-panel__desc {
    color: color-mix(in srgb, var(--ag-text) 82%, transparent);
    font-family: inherit;
    font-weight: 400;
    font-size: 0.95rem;
    line-height: 1.55;
    opacity: 0;
    transform: translateY(-10px);
    text-shadow: 0 2px 14px rgba(0, 0, 0, 0.55);
    transition: opacity calc(var(--ag-duration) * 0.6) var(--ag-ease), transform calc(var(--ag-duration) * 0.6) var(--ag-ease);
}

@media (max-width: 520px) {
    .accordion-gallery {
        flex-direction: column;
        perspective: none;
        height: auto !important;
    }

    .ag-panel {
        min-height: 84px;
        transform: none !important;
    }

    .accordion-gallery .ag-panel__media {
        width: 100%;
        height: var(--ag-media-size);
    }
}

@media (prefers-reduced-motion: reduce) {
    .ag-panel,
    .ag-panel__media,
    .ag-panel__bar,
    .ag-panel__text {
        transition-duration: 0.01ms !important;
    }
}