/* ==========================================================================
   1. RESET & BASE STYLES
   ========================================================================== */
:root {
    --primary-color: #1e293b;
    --accent-color: #2563eb;
    --accent-hover: #1d4ed8;
    --bg-color: #ffffff;
    --surface-color: #f8fafc;
    --text-color: #334155;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --transition: all 0.3s ease;
    --radius: 12px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    flex: 1;
}

.hidden {
    display: none !important;
}

/* ==========================================================================
   2. HEADER & NAVIGATION
   ========================================================================== */
.main-header {
    background-color: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo span {
    color: var(--accent-color);
}

.text-accent {
    color: var(--accent-color);
    margin-right: 0.5rem;
}

/* Search Box */
.search-box, .inner-search-box {
    position: relative;
    width: 100%;
    max-width: 350px;
}

.search-box i, .inner-search-box i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-box input, .inner-search-box input {
    width: 100%;
    padding: 0.6rem 1rem 0.6rem 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-family: inherit;
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition);
    background-color: var(--surface-color);
}

.search-box input:focus, .inner-search-box input:focus {
    border-color: var(--accent-color);
    background-color: var(--bg-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* ==========================================================================
   3. HEADERS & CONTROLS
   ========================================================================== */
.view-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.view-header h2 {
    font-family: var(--font-family-headings, "Onest", sans-serif);
  font-size: 36px;
  font-weight: 600;
  line-height: 1.19;
  color: #2563eb;
}


.view-header p {
    color: var(--text-muted);
}

.view-header.compact {
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.gallery-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Breadcrumbs */
.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.breadcrumb-link {
    color: var(--accent-color);
    cursor: pointer;
    font-weight: 500;
}

.breadcrumb-link:hover {
    text-decoration: underline;
}

.breadcrumbs .separator {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.breadcrumb-current {
    color: var(--text-muted);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius);
    border: none;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary {
    background-color: var(--surface-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
}

/* ==========================================================================
   4. PAGE 1: CATEGORIES GRID (8 Categories/Rows Requirement)
   ========================================================================== */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.category-card {
    background: var(--bg-color);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

.category-thumb-wrapper {
    position: relative;
    padding-top: 66.66%; /* 3:2 Aspect Ratio */
    overflow: hidden;
    background-color: var(--surface-color);
}

.category-thumb-wrapper img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.category-card:hover .category-thumb-wrapper img {
    transform: scale(1.06);
}

.category-info {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.category-info h3 {
    font-size: 1.15rem;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.photo-count {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ==========================================================================
   5. PAGE 2: PHOTOS GRID (Responsive Masonry-like Grid)
   ========================================================================== */
.photos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    grid-auto-flow: dense;
}

.photo-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    background-color: var(--surface-color);
    aspect-ratio: 4 / 3;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.photo-item:hover {
    box-shadow: var(--shadow-lg);
    transform: scale(1.02);
}

.photo-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.photo-item img.loaded {
    opacity: 1;
}

/* Photo Overlay */
.photo-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0) 60%);
    opacity: 0;
    transition: var(--transition);
    display: flex;
    align-items: flex-end;
    padding: 1rem;
}

.photo-item:hover .photo-overlay {
    opacity: 1;
}

.photo-title {
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 500;
}

/* ==========================================================================
   6. PAGINATION
   ========================================================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 3rem;
}

.page-btn {
    min-width: 40px;
    height: 40px;
    padding: 0 0.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    border-radius: 8px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.page-btn:hover:not(:disabled) {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.page-btn.active {
    background-color: var(--accent-color);
    color: #ffffff;
    border-color: var(--accent-color);
}

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

/* ==========================================================================
   7. LIGHTBOX / MODAL OVERLAY
   ========================================================================== */
.lightbox {
    position: fixed;
    inset: 0;
    background-color: rgba(15, 23, 42, 0.95);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.lightbox-content {
    max-width: 85vw;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 75vh;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.lightbox-caption {
    color: #e2e8f0;
    margin-top: 1rem;
    font-size: 1rem;
    text-align: center;
}

/* Lightbox UI interactions */
.lightbox-close {
    position: absolute;
    top: 1.5rem;
    right: 2rem;
    color: #ffffff;
    font-size: 2.5rem;
    background: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.lightbox-close:hover {
    color: var(--accent-color);
    transform: scale(1.1);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    transition: var(--transition);
}

.lightbox-nav:hover {
    background-color: var(--accent-color);
}

.lightbox-nav.prev { left: 2rem; }
.lightbox-nav.next { right: 2rem; }

/* ==========================================================================
   8. LOADING SPINNER
   ========================================================================== */
.spinner-container {
    position: fixed;
    inset: 0;
    background-color: rgba(255,255,255,0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 999;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ==========================================================================
   9. RESPONSIVE DESIGN BREAKPOINTS
   ========================================================================== */
@media (max-width: 1024px) {
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .view-header.compact {
        flex-direction: column;
        align-items: flex-start;
    }
    .search-box, .inner-search-box {
        max-width: 100%;
    }
    .lightbox-nav {
        width: 40px;
        height: 40px;
    }
    .lightbox-nav.prev { left: 0.5rem; }
    .lightbox-nav.next { right: 0.5rem; }
}

@media (max-width: 480px) {
    .categories-grid {
        grid-template-columns: 1fr;
    }
    .header-container {
        flex-direction: column;
        gap: 0.5rem;
    }
    .view-header h2 {
        font-size: 1.75rem;
    }
}

/* ==========================================================================
   10. 5-COLUMN VIDEO GRID & MODAL STYLES
   ========================================================================== */
.videos-grid-5 {
    display: grid;
    grid-template-columns: repeat(5, 1fr); /* Enforces 5 strict columns */
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.video-card {
    background: var(--bg-color);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.video-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

.video-thumbnail-wrapper {
    position: relative;
    padding-top: 56.25%; /* 16:9 Widescreen Aspect Ratio */
    background-color: #000;
    overflow: hidden;
}

.video-thumbnail-wrapper img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.video-card:hover .video-thumbnail-wrapper img {
    transform: scale(1.05);
}

.video-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.3);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
}

.play-icon {
    font-size: 2.5rem;
    color: #ffffff;
    opacity: 0.9;
    transition: var(--transition);
}

.video-card:hover .play-icon {
    transform: scale(1.15);
    color: var(--accent-color);
    opacity: 1;
}

.video-info {
    padding: 0.8rem 1rem;
    text-align: center;
}

.video-info h3 {
    font-size: 0.9rem;
    color: var(--primary-color);
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Fluid responsive breakdown rules for a 5-column scheme */
@media (max-width: 1200px) {
    .videos-grid-5 { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 992px) {
    .videos-grid-5 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .videos-grid-5 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
    .videos-grid-5 { grid-template-columns: 1fr; }
}