/* ================================================================
   Dijital Arşiv - Frontend Styles
   ================================================================ */

/* --- Design Tokens --- */
:root {
    --da-primary: #d71e1f;
    --da-primary-light: #eac1c1;
    --da-primary-lighter: #e8f0fe;
    --da-accent: #c49b5c;
    --da-accent-light: #f5ead6;
    --da-bg: #f8f9fb;
    --da-surface: #ffffff;
    --da-surface-hover: #f0f4f8;
    --da-border: #e2e8f0;
    --da-border-light: #eef2f7;
    --da-text: #1a202c;
    --da-text-secondary: #64748b;
    --da-text-muted: #94a3b8;
    --da-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --da-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
    --da-shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);
    --da-radius: 12px;
    --da-radius-sm: 8px;
    --da-radius-xs: 6px;
    --da-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Page Layout --- */
.da-page {
    color: var(--da-text);
    line-height: 1.6;
    background: var(--da-bg);
    min-height: 60vh;
    padding: 40px 0 80px;
    -webkit-font-smoothing: antialiased;
}

.da-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Breadcrumb --- */
.da-breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 28px;
    font-size: 14px;
    color: var(--da-text-secondary);
}

.da-breadcrumb-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--da-text-secondary);
    text-decoration: none;
    padding: 4px 8px;
    border-radius: var(--da-radius-xs);
    transition: all var(--da-transition);
}

.da-breadcrumb-link:hover {
    color: var(--da-primary);
    background: var(--da-primary-lighter);
}

.da-breadcrumb-sep {
    display: inline-flex;
    color: var(--da-text-muted);
}

.da-breadcrumb-current {
    font-weight: 600;
    color: var(--da-text);
    padding: 4px 8px;
}

/* --- Page Header --- */
.da-page-header {
    margin-bottom: 40px;
}

.da-page-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--da-primary);
    margin: 0 0 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    line-height: 1.2;
}

.da-title-icon {
    font-size: 1.5rem;
}

.da-page-description {
    font-size: 16px;
    color: var(--da-text-secondary);
    max-width: 100%;
    line-height: 1.7;
}

.da-page-description p {
    margin: 0;
}

.da-materyal-type-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    background: var(--da-accent-light);
    color: var(--da-accent);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.02em;
}

/* --- Section --- */
.da-section {
    margin-bottom: 48px;
}

.da-section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--da-text);
    margin: 0 0 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--da-border);
    display: flex;
    align-items: center;
    gap: 12px;
}

.da-section-count {
    font-size: 13px;
    font-weight: 500;
    color: var(--da-text-muted);
    background: var(--da-bg);
    padding: 3px 12px;
    border-radius: 12px;
}

/* --- Subcollection Grid --- */
.da-subcollection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 12px;
}

.da-subcollection-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--da-surface);
    border: 1px solid var(--da-border);
    border-radius: var(--da-radius-sm);
    text-decoration: none;
    color: var(--da-text);
    transition: all var(--da-transition);
    box-shadow: var(--da-shadow-sm);
}

.da-subcollection-card:hover {
    border-color: var(--da-primary-light);
    box-shadow: var(--da-shadow-md);
    transform: translateY(-2px);
    background: var(--da-surface-hover);
}

.da-subcollection-icon {
    font-size: 28px;
    flex-shrink: 0;
}

.da-subcollection-info {
    flex: 1;
    min-width: 0;
}

.da-subcollection-name {
    font-size: 15px;
    font-weight: 600;
    margin: 0 0 4px;
    color: var(--da-primary);
}

.da-subcollection-meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--da-text-muted);
}

.da-subcollection-arrow {
    color: var(--da-text-muted);
    flex-shrink: 0;
    transition: transform var(--da-transition);
}

.da-subcollection-card:hover .da-subcollection-arrow {
    transform: translateX(4px);
    color: var(--da-primary);
}

/* --- Materials Grid --- */
.da-materyal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
}

.da-koleksiyon-grid {
    display: grid;
    grid-template-columns: repeat(var(--da-columns, 3), 1fr);
    gap: 20px;
}

.da-materyal-card {
    display: flex;
    flex-direction: column;
    background: var(--da-surface);
    border: 1px solid var(--da-border);
    border-radius: var(--da-radius);
    overflow: hidden;
    text-decoration: none;
    color: var(--da-text);
    transition: all var(--da-transition);
    box-shadow: var(--da-shadow-sm);
}

.da-materyal-card:hover {
    box-shadow: var(--da-shadow-lg);
    transform: translateY(-4px);
    border-color: var(--da-primary-light);
}

.da-materyal-thumb {
    position: relative;
    width: 100%;
    padding-top: 66.67%;
    overflow: hidden;
    background: linear-gradient(135deg, var(--da-primary-lighter) 0%, var(--da-bg) 100%);
}

.da-thumb-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    transition: transform var(--da-transition);
}

.da-materyal-card:hover .da-thumb-bg {
    transform: scale(1.05);
}

.da-thumb-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    opacity: 0.6;
}

.da-materyal-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #d71e1f;
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 12px;
    letter-spacing: 0.03em;
    backdrop-filter: blur(4px);
}

.da-materyal-info {
    padding: 16px;
}

.da-materyal-title {
    font-size: 14px;
    font-weight: 600;
    margin: 0 0 6px;
    color: var(--da-text);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.da-materyal-date {
    font-size: 12px;
    color: var(--da-text-muted);
}

/* --- Empty State --- */
.da-empty-state,
.da-empty {
    text-align: center;
    padding: 60px 24px;
    color: var(--da-text-muted);
}

.da-empty-state .da-empty-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 12px;
}

/* ================================================================
   Viewer Styles
   ================================================================ */

.da-viewer-container {
    margin-bottom: 40px;
}

/* PDF Viewer */
.da-pdf-viewer {
    border: 1px solid var(--da-border);
    border-radius: var(--da-radius);
    overflow: hidden;
    box-shadow: var(--da-shadow-md);
    background: var(--da-surface);
}

.da-viewer-toolbar {
    display: flex;
    gap: 8px;
    padding: 10px 16px;
    background: var(--da-primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.da-toolbar-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    text-decoration: none;
    border-radius: var(--da-radius-xs);
    font-size: 13px;
    font-weight: 500;
    transition: all var(--da-transition);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.da-toolbar-btn:hover {
    background: rgba(255, 255, 255, 0.22);
    color: #fff;
}

.da-pdf-iframe {
    width: 100%;
    height: 700px;
    border: none;
    display: block;
}

/* Gallery Viewer */
.da-gallery-viewer {
    background: var(--da-surface);
    border: 1px solid var(--da-border);
    border-radius: var(--da-radius);
    overflow: hidden;
    box-shadow: var(--da-shadow-md);
}

.da-gallery-main {
    position: relative;
    display: flex;
    align-items: center;
    background: #0a0a0a;
    min-height: 500px;
}

.da-gallery-stage {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    min-height: 500px;
}

.da-gallery-current-img {
    max-width: 100%;
    max-height: 600px;
    object-fit: contain;
    cursor: zoom-in;
    transition: opacity 0.3s ease;
    border-radius: 4px;
}

.da-gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--da-transition);
    backdrop-filter: blur(8px);
}

.da-gallery-nav:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.25);
}

.da-gallery-nav:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.da-gallery-prev {
    left: 16px;
}

.da-gallery-next {
    right: 16px;
}

.da-gallery-counter {
    text-align: center;
    padding: 10px;
    background: #0a0a0a;
    color: rgba(255, 255, 255, 0.6);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.05em;
}

.da-gallery-thumbs {
    display: flex;
    gap: 6px;
    padding: 12px 16px;
    overflow-x: auto;
    background: #111;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

.da-gallery-thumb-btn {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    border: 2px solid transparent;
    border-radius: var(--da-radius-xs);
    overflow: hidden;
    cursor: pointer;
    padding: 0;
    background: none;
    transition: all var(--da-transition);
    opacity: 0.5;
}

.da-gallery-thumb-btn.active,
.da-gallery-thumb-btn:hover {
    border-color: var(--da-accent);
    opacity: 1;
}

.da-gallery-thumb-btn img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Video Viewer (Plyr) */
.da-video-viewer {
    background: #000;
    border-radius: var(--da-radius);
    overflow: hidden;
    box-shadow: var(--da-shadow-md);
}

.da-video-viewer .plyr {
    border-radius: var(--da-radius);
}

.da-video-viewer .plyr--video {
    border-radius: var(--da-radius);
}

.da-viewer-empty {
    text-align: center;
    padding: 80px 24px;
    background: var(--da-surface);
    border: 2px dashed var(--da-border);
    border-radius: var(--da-radius);
    color: var(--da-text-muted);
}

.da-viewer-empty .da-empty-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 12px;
}

/* ================================================================
   Metadata
   ================================================================ */

.da-metadata {
    background: var(--da-surface);
    border: 1px solid var(--da-border);
    border-radius: var(--da-radius);
    padding: 32px;
    box-shadow: var(--da-shadow-sm);
    margin-bottom: 32px;
}

.da-metadata-grid {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.da-meta-item {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 16px;
    align-items: start;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--da-border-light);
}

.da-meta-item:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.da-meta-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--da-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.da-meta-label svg {
    color: var(--da-primary-light);
}

.da-meta-value {
    font-size: 15px;
    color: var(--da-text);
    line-height: 1.7;
}

.da-meta-value p {
    margin: 0;
}

.da-collection-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--da-primary);
    text-decoration: none;
    font-weight: 500;
    padding: 4px 12px;
    background: #efefef;
    border-radius: var(--da-radius-xs);
    transition: all var(--da-transition);
}

.da-collection-link:hover {
    background: var(--da-primary);
    color: #fff;
}

/* ================================================================
   Prev/Next Navigation
   ================================================================ */

.da-prev-next {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 12px;
}

.da-nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: var(--da-surface);
    border: 1px solid var(--da-border);
    border-radius: var(--da-radius-sm);
    text-decoration: none;
    color: var(--da-text);
    flex: 1;
    max-width: 48%;
    transition: all var(--da-transition);
    box-shadow: var(--da-shadow-sm);
}

.da-nav-link:hover {
    border-color: var(--da-primary-light);
    box-shadow: var(--da-shadow-md);
    transform: translateY(-2px);
}

.da-nav-next {
    text-align: right;
    justify-content: flex-end;
    margin-left: auto;
}

.da-nav-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.da-nav-label {
    font-size: 12px;
    color: var(--da-text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.da-nav-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--da-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ================================================================
   Collection Tree (Shortcode)
   ================================================================ */

.da-arsiv-agaci {
    max-width: 800px;
}

.da-tree-title {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--da-primary);
    margin: 0 0 24px;
}

.da-tree-root,
.da-tree-children {
    list-style: none;
    margin: 0;
    padding: 0;
}

.da-tree-children {
    padding-left: 24px;
}

.da-tree-node {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 0;
}



.da-tree-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--da-text);
    padding: 4px 10px;
    border-radius: var(--da-radius-xs);
    transition: all var(--da-transition);
    font-weight: 500;
    font-size: 14px;
	background: #f5f5f5;
}

.da-tree-link:hover {
    background: var(--da-primary-lighter);
    color: var(--da-primary);
}

.da-tree-icon {
    font-size: 16px;
}

.da-tree-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    color: #fff;
    background: var(--da-primary);
    min-width: 22px;
    height: 22px;
    padding: 0 7px;
    border-radius: 11px;
    margin-left: 6px;
    line-height: 1;
    letter-spacing: 0.02em;
    box-shadow: 0 1px 3px rgba(30, 58, 95, 0.3);
}

/* ── Pagination ───────────────────────────────────────────── */
.da-pagination {
    margin: 2.5rem 0 1rem;
    display: flex;
    justify-content: center;
}

.da-pagination-list {
    display: flex;
    align-items: center;
    gap: 6px;
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
}

.da-page-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border: 2px solid #d71e1f;
    border-radius: 5px;
    background: #ffffff;
    color: #d71e1f;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.18s, color 0.18s, box-shadow 0.18s;
    box-shadow: 0 1px 4px rgba(215, 30, 31, 0.08);
    justify-content: center;
    line-height: 1;
}

a.da-page-btn:hover {
    background: #fdf0f0;
    box-shadow: 0 2px 8px rgba(215, 30, 31, 0.15);
    color: #d71e1f;
    text-decoration: none;
}

.da-page-btn.da-page-active {
    background: #d71e1f;
    color: #ffffff;
    border-color: #d71e1f;
    box-shadow: 0 2px 8px rgba(215, 30, 31, 0.22);
    cursor: default;
    pointer-events: none;
}

.da-page-btn.da-page-disabled {
    opacity: 0.38;
    cursor: not-allowed;
    pointer-events: none;
}

.da-page-btn.da-page-ellipsis {
    border-color: transparent;
    background: transparent;
    box-shadow: none;
    color: #888;
    cursor: default;
    pointer-events: none;
    min-width: 24px;
    padding: 0 4px;
}

.da-page-prev,
.da-page-next {
    font-size: 0.85rem;
    padding: 0 14px;
}

/* ================================================================
   Lightbox
   ================================================================ */

.da-lightbox {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.da-lightbox-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(12px);
}

.da-lightbox-content {
    position: relative;
    z-index: 1;
    max-width: 95vw;
    max-height: 95vh;
}

.da-lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: #fff;
    font-size: 32px;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
    transition: opacity var(--da-transition);
}

.da-lightbox-close:hover {
    opacity: 1;
}

#da-lightbox-img {
    max-width: 95vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 4px;
}

/* ================================================================
   Responsive
   ================================================================ */

@media (max-width: 768px) {
    .da-page {
        padding: 24px 0 60px;
    }

    .da-page-title {
        font-size: 1.5rem;
    }

    .da-materyal-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 12px;
    }

    .da-koleksiyon-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .da-subcollection-grid {
        grid-template-columns: 1fr;
    }

    .da-meta-item {
        grid-template-columns: 1fr;
        gap: 6px;
    }

    .da-prev-next {
        flex-direction: column;
    }

    .da-nav-link {
        max-width: 100%;
    }

    .da-pdf-iframe {
        height: 450px;
    }

    .da-gallery-main {
        min-height: 300px;
    }

    .da-gallery-stage {
        min-height: 300px;
    }

    .da-metadata {
        padding: 20px;
    }

    .da-tree-children {
        padding-left: 16px;
    }
}

@media (max-width: 480px) {
    .da-page-title {
        font-size: 1.25rem;
    }

    .da-materyal-grid {
        grid-template-columns: 1fr 1fr;
    }

    .da-pdf-iframe {
        height: 350px;
    }
}