/* ===================================
   PAGE HEADER
   =================================== */
.page-header {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" xmlns="http://www.w3.org/2000/svg"><rect width="60" height="60" fill="rgba(255,255,255,0.03)"/><path d="M0 0L60 60M60 0L0 60" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></svg>');
    opacity: 0.3;
}

.page-header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
}

.page-header-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
}

.page-header-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    animation: fadeInUp 0.6s ease;
}

.page-header-content p {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    opacity: 0.95;
    animation: fadeInUp 0.6s ease 0.1s backwards;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    animation: fadeInUp 0.6s ease 0.2s backwards;
}

.breadcrumb a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.breadcrumb a:hover {
    opacity: 0.8;
}

.breadcrumb span {
    opacity: 0.6;
}

/* ===================================
   GALLERY SECTION
   =================================== */
.gallery-section {
    padding: 4rem 0;
    min-height: 600px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    aspect-ratio: 4/3;
    background: var(--light-color);
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

/* Placeholder for images */
.gallery-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #e0e7ff 0%, #dbeafe 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.gallery-placeholder svg {
    width: 60px;
    height: 60px;
    opacity: 0.5;
}

/* ===================================
   PAGINATION
   =================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 3rem;
}

.pagination-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-weight: 600;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pagination-btn svg {
    width: 18px;
    height: 18px;
}

.pagination-numbers {
    display: flex;
    gap: 0.5rem;
}

.pagination-number {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-weight: 600;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.pagination-number:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.pagination-number.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* ===================================
   LIGHTBOX MODAL
   =================================== */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10002;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.lightbox-close svg {
    width: 24px;
    height: 24px;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10002;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
    left: 2rem;
}

.lightbox-next {
    right: 2rem;
}

.lightbox-nav svg {
    width: 28px;
    height: 28px;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    object-fit: contain;
}

.lightbox-counter {
    position: absolute;
    top: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-weight: 600;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

/* ===================================
   LOADING STATE
   =================================== */
.loading {
    text-align: center;
    padding: 4rem 0;
    color: var(--text-light);
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===================================
   EMPTY STATE
   =================================== */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-light);
    grid-column: 1 / -1;
}

.empty-state svg {
    width: 80px;
    height: 80px;
    margin-bottom: 1.5rem;
    opacity: 0.3;
}

.empty-state h3 {
    font-size: 1.5rem;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.empty-state p {
    font-size: 1rem;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 1200px) {
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 968px) {
    .page-header-content h1 {
        font-size: 2.5rem;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .lightbox-nav {
        width: 50px;
        height: 50px;
    }

    .lightbox-prev {
        left: 1rem;
    }

    .lightbox-next {
        right: 1rem;
    }

    .lightbox-close {
        top: 1rem;
        right: 1rem;
    }
}

@media (max-width: 640px) {
    .page-header {
        padding: 6rem 0 3rem;
    }

    .page-header-content h1 {
        font-size: 2rem;
    }

    .page-header-content p {
        font-size: 1.1rem;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pagination {
        flex-direction: column;
        gap: 1rem;
    }

    .pagination-numbers {
        order: -1;
    }

    .lightbox {
        padding: 1rem;
    }

    .lightbox-content img {
        max-height: 70vh;
    }
}

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