/* ============================================================
   PHOTOTHÈQUE PAGE STYLES
   ============================================================ */

/* ---- FILTERS ---- */
.photo-filters {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: var(--space-xl);
}

.photo-filter {
    padding: 0.4375rem 1rem;
    border-radius: var(--radius-full);
    border: 1.5px solid var(--color-gray-200);
    background: #fff;
    color: var(--color-gray-500);
    font-family: var(--font-heading);
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.photo-filter:hover {
    border-color: var(--color-royal-400);
    color: var(--color-royal-700);
}

.photo-filter--active {
    background: var(--color-royal-700);
    border-color: var(--color-royal-700);
    color: #fff;
}

/* ---- GRID ---- */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

@media (min-width: 640px) {
    .photo-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
    .photo-grid { grid-template-columns: repeat(4, 1fr); gap: 1rem; }
}

.photo-item {
    margin: 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background: var(--color-gray-100);
}

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

.photo-item__btn {
    display: block;
    width: 100%;
    height: 100%;
    padding: 0;
    border: none;
    background: none;
    cursor: zoom-in;
}

.photo-item__btn img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.photo-item__btn:hover img,
.photo-item__btn:focus-visible img {
    transform: scale(1.05);
}

/* ---- LOAD MORE / EMPTY ---- */
.photo-gallery__more {
    text-align: center;
    margin-top: var(--space-xl);
}

.photo-load-more[hidden] { display: none; }

.photo-gallery__empty {
    text-align: center;
    color: var(--color-gray-400);
    padding: var(--space-xl) 0;
}

/* ---- LIGHTBOX ---- */
.photo-lightbox {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 10, 30, 0.92);
    padding: var(--space-lg);
}

.photo-lightbox[hidden] { display: none; }

.photo-lightbox__figure {
    max-width: min(90vw, 1100px);
    max-height: 85vh;
    margin: 0;
}

.photo-lightbox__img {
    display: block;
    max-width: 100%;
    max-height: 85vh;
    width: auto;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.photo-lightbox__close,
.photo-lightbox__nav {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.25);
    color: #fff;
    border-radius: 999px;
    cursor: pointer;
    transition: background 0.2s ease;
}

.photo-lightbox__close:hover,
.photo-lightbox__nav:hover {
    background: rgba(255,255,255,0.25);
}

.photo-lightbox__close {
    top: var(--space-lg);
    right: var(--space-lg);
    width: 44px;
    height: 44px;
}
.photo-lightbox__close svg { width: 20px; height: 20px; }

.photo-lightbox__nav {
    top: 50%;
    transform: translateY(-50%);
    width: 52px;
    height: 52px;
}
.photo-lightbox__nav svg { width: 24px; height: 24px; }
.photo-lightbox__nav--prev { left: var(--space-lg); }
.photo-lightbox__nav--next { right: var(--space-lg); }

@media (max-width: 640px) {
    .photo-lightbox__nav { width: 40px; height: 40px; }
    .photo-lightbox__nav--prev { left: var(--space-sm); }
    .photo-lightbox__nav--next { right: var(--space-sm); }
    .photo-lightbox__close { top: var(--space-sm); right: var(--space-sm); }
}