/**
 * GALLERY.CSS - Styles spécifiques à la page galerie
 * 
 * Ce fichier contient tous les styles pour la page galerie autonome :
 * - Layout de la galerie en grille
 * - Filtres de catégories
 * - Animations des éléments de galerie
 * - Modal de détail des projets
 * - Responsive design pour la galerie
 */

/* ===== SECTION HERO GALERIE ===== */
.gallery-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-color) 100%);
    text-align: center;
    padding: 8rem 0 4rem;
    margin-top: 80px; /* Compensation pour le header fixe */
}

.gallery-hero__title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    color: var(--text-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.gallery-hero__subtitle {
    font-size: var(--font-size-md);
    color: var(--text-muted);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== FILTRES DE GALERIE ===== */
.gallery-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    color: var(--text-light);
    font-family: inherit;
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--accent-color);
    transition: var(--transition);
    z-index: -1;
}

.filter-btn:hover::before,
.filter-btn.active::before {
    left: 0;
}

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

/* Capsules de domaines (style un peu plus sexy) */
.filter-btn--domain {
    border-color: rgba(2, 133, 95, 0.35);
    color: rgba(255,255,255,0.95);
    background: linear-gradient(135deg, rgba(2,133,95,0.10) 0%, rgba(2,133,95,0.06) 100%);
    box-shadow: 0 6px 20px rgba(2, 133, 95, 0.18);
}
.filter-btn--domain:hover,
.filter-btn--domain.active {
    border-color: rgba(2,133,95,0.8);
    background: linear-gradient(135deg, rgba(2,133,95,0.22) 0%, rgba(2,133,95,0.12) 100%);
    transform: translateY(-2px);
}

/* ===== SECTION PRINCIPALE GALERIE ===== */
.gallery-main {
    background: var(--primary-color);
    padding: 4rem 0;
}

/* ===== GRILLE DE GALERIE ===== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.gallery-item {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    background: var(--dark-color, #0d0d0d); /* Couleur de fond de secours */
    box-shadow: var(--shadow-medium);
    transition: var(--transition);
    cursor: pointer;
}

.gallery-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

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

.gallery-item__image {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.04); /* Fond visible même sans image */
}

.gallery-item__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
    display: block;
    background-color: rgba(0,0,0,0.2); /* Couleur de fond sous l'image */
}

/* Support des vidéos comme vignettes */
.gallery-item__image video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Support des iframes YouTube comme vignettes */
.gallery-item__image iframe {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    border: none;
    pointer-events: none; /* Empêche l'interaction avec l'iframe, l'overlay reste cliquable */
}

/* Support du conteneur YouTube Player */
.gallery-item__image > div[id*="youtube-player"] {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none; /* Empêche l'interaction, l'overlay reste cliquable */
    z-index: 1;
}

.gallery-item__image > div[id*="youtube-player"] iframe {
    width: 100%;
    height: 100%;
    border: none;
    position: absolute;
    top: 0;
    left: 0;
}

.gallery-item:hover .gallery-item__image img {
    transform: scale(1.1);
}

.gallery-item__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.3) 0%,
        rgba(0, 0, 0, 0.7) 100%
    );
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
    padding: 1.5rem;
    z-index: 2; /* Au-dessus du lecteur YouTube */
    pointer-events: auto; /* Permet les interactions avec l'overlay */
}

.gallery-item:hover .gallery-item__overlay {
    opacity: 1;
}

.gallery-item__play-btn {
    width: 60px;
    height: 60px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    color: var(--accent-color);
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-light);
}

.gallery-item__play-btn:hover {
    background: var(--text-color);
    transform: scale(1.1);
    box-shadow: var(--shadow-medium);
}

.gallery-item__info {
    text-align: center;
    color: var(--text-color);
}

.gallery-item__title {
    font-size: var(--font-size-md);
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.gallery-item__category {
    font-size: var(--font-size-sm);
    color: var(--accent-color);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0;
}

/* ===== BOUTON "VOIR PLUS" ===== */
.gallery-load-more {
    text-align: center;
}

#load-more-btn {
    min-width: 200px;
}

/* ===== MODAL DE DÉTAIL ===== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
}

.modal__content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    background: var(--primary-color);
    border-radius: var(--border-radius-lg);
    max-width: 90vw;
    max-height: 90vh;
    width: 800px;
    overflow: hidden;
    box-shadow: var(--shadow-heavy);
    transition: var(--transition);
}

.modal.active .modal__content {
    transform: translate(-50%, -50%) scale(1);
}

.modal__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: var(--text-color);
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal__close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.modal__body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    max-height: 80vh;
    overflow-y: auto;
}

.modal__media {
    position: relative;
    background: var(--dark-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal__media img,
.modal__media video,
.modal__media iframe {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border: none;
}

.modal__media iframe[data-youtube] {
    object-fit: contain;
}

.modal__info {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.modal__title {
    font-size: var(--font-size-lg);
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.modal__category {
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: 1rem;
    text-transform: uppercase;
    font-size: var(--font-size-sm);
    letter-spacing: 1px;
}

.modal__description {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

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

.modal__tech .tech-tag {
    padding: 0.25rem 0.75rem;
    background: rgba(2, 133, 95, 0.1);
    color: var(--accent-color);
    border: 1px solid rgba(2, 133, 95, 0.3);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* ===== ANIMATIONS GSAP POUR LA GALERIE ===== */
.gallery-item {
    opacity: 1; /* visible par défaut */
    transform: translateY(0);
}

.gallery-item.animate {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE DESIGN ===== */

/* Tablettes */
@media (max-width: 768px) {
    .gallery-hero {
        padding: 6rem 0 3rem;
        margin-top: 70px;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 1.5rem;
    }
    
    .gallery-item__image {
        height: 200px;
    }
    
    .gallery-filters {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: var(--font-size-sm);
    }
    
    .modal__content {
        width: 95vw;
        height: 90vh;
    }
    
    .modal__body {
        grid-template-columns: 1fr;
        max-height: none;
    }
    
    .modal__media img,
    .modal__media video,
    .modal__media iframe {
        height: 250px;
    }
    
    .modal__info {
        padding: 1.5rem;
    }
}

/* Mobile */
@media (max-width: 480px) {
    .gallery-hero {
        padding: 5rem 0 2rem;
        margin-top: 60px;
    }
    
    .gallery-hero__title {
        font-size: 2rem;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .gallery-item__image {
        height: 180px;
    }
    
    .gallery-item__play-btn {
        width: 50px;
        height: 50px;
        font-size: 1rem;
    }
    
    .gallery-filters {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-btn {
        width: 200px;
        text-align: center;
    }
    
    .modal__content {
        width: 100vw;
        height: 100vh;
        border-radius: 0;
        max-width: none;
        max-height: none;
    }
    
    .modal__close {
        top: 0.5rem;
        right: 0.5rem;
        width: 35px;
        height: 35px;
    }
    
    .modal__media img,
    .modal__media video,
    .modal__media iframe {
        height: 200px;
    }
    
    .modal__info {
        padding: 1rem;
    }
    
    .modal__title {
        font-size: var(--font-size-md);
    }
}

/* ===== ÉTATS DE CHARGEMENT ===== */
.gallery-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 200px;
    color: var(--text-muted);
}

.gallery-loading::after {
    content: '';
    width: 40px;
    height: 40px;
    border: 3px solid rgba(2, 133, 95, 0.3);
    border-top: 3px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===== OPTIMISATIONS PERFORMANCE ===== */
.gallery-item__image {
    will-change: transform;
}

.modal {
    will-change: opacity, visibility;
}

/* ===== ACCESSIBILITÉ ===== */
.filter-btn:focus,
.gallery-item:focus,
.modal__close:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Réduction de mouvement */
@media (prefers-reduced-motion: reduce) {
    .gallery-item,
    .modal,
    .filter-btn {
        transition: none;
    }
    
    .gallery-item:hover {
        transform: none;
    }
}