/* ============================================
   Concert Sound Systems - Gallery Styles
   ============================================ */

/* --- Filters --- */
.gallery-filters {
    margin-bottom: var(--space-md);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    align-items: flex-start;
}

.filter-group {
    flex: 1;
    min-width: 280px;
}

.filter-label {
    font-size: 0.9375rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-xs);
    color: var(--color-text);
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-btn {
    padding: 0.5rem 1rem;
    font-family: var(--font-primary);
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    background: var(--color-white);
    color: var(--color-text-light);
    border: 2px solid var(--color-border);
    border-radius: 30px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.filter-btn.active {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-white);
}

.filter-select {
    max-width: 300px;
}

/* --- Gallery Grid --- */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-sm);
}

.gallery-item {
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.gallery-item.hidden {
    display: none;
}

.gallery-link {
    display: block;
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
}

/* Safari <15 fallback for aspect-ratio */
@supports not (aspect-ratio: 4/3) {
    .gallery-link {
        height: 0;
        padding-bottom: 75%; /* 3/4 = 75% */
    }
    .gallery-link img {
        position: absolute;
        top: 0;
        left: 0;
    }
}

.gallery-link img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.gallery-link:hover img {
    transform: scale(1.05);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.gallery-link:hover .gallery-overlay {
    opacity: 1;
}

.gallery-zoom-icon {
    color: var(--color-white);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
}

/* --- Gallery Empty State --- */
.gallery-empty {
    text-align: center;
    padding: var(--space-xl) var(--space-md);
    color: var(--color-text-muted);
}

.gallery-empty p {
    font-size: 1.125rem;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .gallery-filters {
        flex-direction: column;
    }

    .filter-group {
        min-width: 100%;
    }

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem;
    }

    .filter-buttons {
        gap: 0.375rem;
    }

    .filter-btn {
        padding: 0.375rem 0.75rem;
        font-size: 0.8125rem;
    }
}