/* ========================================
   PORTFOLIO / NOS RÉALISATIONS
   Section avec filtres et galerie interactive
   ======================================== */

/* Section Container */
.portfolio-section {
    padding: 100px 0;
    background: var(--color-bg-light);
}

.portfolio-header {
    text-align: center;
    margin-bottom: 60px;
}

.portfolio-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--color-text-dark);
}

.portfolio-subtitle {
    font-size: 16px;
    color: var(--color-text-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   FILTRES
   ======================================== */

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 28px;
    background: white;
    border: 2px solid rgba(0, 102, 179, 0.15);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--color-primary);
    transition: left 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 0;
}

.filter-btn span {
    position: relative;
    z-index: 1;
}

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

.filter-btn:hover,
.filter-btn.active {
    color: white;
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 102, 179, 0.3);
}

/* ========================================
   GRILLE DE PROJETS
   ======================================== */

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1px;
    max-width: 1400px;
    margin: 0 auto;
}

/* Carte de projet */
.portfolio-card {
    position: relative;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    cursor: pointer;
    background: #f0f0f0;
}

.portfolio-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.portfolio-card:hover .portfolio-card-image {
    transform: scale(1.08);
}

/* Overlay au hover */
.portfolio-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom,
            rgba(0, 102, 179, 0.7) 0%,
            rgba(0, 51, 102, 0.9) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.5s ease;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.portfolio-card:hover .portfolio-card-overlay {
    opacity: 1;
}

.portfolio-card-category {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 12px;
}

.portfolio-card-title {
    font-size: 24px;
    font-weight: 700;
    color: white;
    text-align: center;
    padding: 0 20px;
    margin-bottom: 8px;
}

.portfolio-card-date {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

.portfolio-card-icon {
    margin-top: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.portfolio-card:hover .portfolio-card-icon {
    background: white;
    transform: rotate(90deg);
}

.portfolio-card-icon svg {
    width: 24px;
    height: 24px;
    stroke: white;
    transition: stroke 0.3s ease;
}

.portfolio-card:hover .portfolio-card-icon svg {
    stroke: var(--color-primary);
}

/* Animation hide/show pour le filtrage */
.portfolio-card.hidden {
    display: none;
}

.portfolio-card.reveal-portfolio {
    animation: revealPortfolio 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes revealPortfolio {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   MODAL GALERIE PLEIN ÉCRAN
   ======================================== */

.portfolio-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 99999;
    display: none;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.portfolio-modal.active {
    display: flex;
    opacity: 1;
}

.portfolio-modal-content {
    width: 100%;
    height: 100%;
    display: flex;
    position: relative;
}

/* Bouton de fermeture */
.portfolio-modal-close {
    position: absolute;
    top: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.portfolio-modal-close:hover {
    background: white;
    transform: rotate(90deg);
}

.portfolio-modal-close svg {
    width: 24px;
    height: 24px;
    stroke: white;
    transition: stroke 0.3s ease;
}

.portfolio-modal-close:hover svg {
    stroke: #000;
}

/* Section gauche : Galerie d'images */
.portfolio-modal-gallery {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 40px;
    position: relative;
}

.portfolio-modal-main-image {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 80px rgba(0, 0, 0, 0.5);
}

/* Flèches de navigation */
.portfolio-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 5;
}

.portfolio-nav-btn:hover {
    background: white;
    transform: translateY(-50%) scale(1.1);
}

.portfolio-nav-btn svg {
    width: 24px;
    height: 24px;
    stroke: white;
    transition: stroke 0.3s ease;
}

.portfolio-nav-btn:hover svg {
    stroke: #000;
}

.portfolio-nav-btn.prev {
    left: 20px;
}

.portfolio-nav-btn.next {
    right: 20px;
}

/* Section droite : Informations */
.portfolio-modal-info {
    width: 400px;
    background: #1a1a1a;
    padding: 80px 50px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.portfolio-modal-category {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.portfolio-modal-title {
    font-size: 32px;
    font-weight: 800;
    color: white;
    margin-bottom: 16px;
    line-height: 1.2;
}

.portfolio-modal-date {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 30px;
}

.portfolio-modal-description {
    font-size: 15px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
}

.portfolio-modal-thumbnails {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: auto;
}

.portfolio-thumbnail {
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 4px;
    cursor: pointer;
    opacity: 0.6;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.portfolio-thumbnail:hover,
.portfolio-thumbnail.active {
    opacity: 1;
    border-color: var(--color-primary);
}

.portfolio-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

@media (max-width: 1024px) {
    .portfolio-modal-info {
        width: 350px;
        padding: 60px 30px;
    }

    .portfolio-modal-gallery {
        padding: 60px 20px;
    }
}

@media (max-width: 768px) {
    .portfolio-section {
        padding: 60px 0;
    }

    .portfolio-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 2px;
    }

    .portfolio-filters {
        gap: 8px;
        padding: 0 20px;
    }

    .filter-btn {
        padding: 10px 20px;
        font-size: 11px;
    }

    /* Modal en colonne sur mobile */
    .portfolio-modal-content {
        flex-direction: column-reverse;
    }

    .portfolio-modal-info {
        width: 100%;
        max-height: 40vh;
        padding: 30px 20px;
    }

    .portfolio-modal-gallery {
        padding: 30px 20px;
        flex: 1;
    }

    .portfolio-modal-close {
        top: 15px;
        right: 15px;
        width: 45px;
        height: 45px;
    }

    .portfolio-nav-btn {
        width: 50px;
        height: 50px;
    }

    .portfolio-modal-title {
        font-size: 24px;
    }

    .portfolio-modal-thumbnails {
        grid-template-columns: repeat(4, 1fr);
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-card-title {
        font-size: 20px;
    }
}