/**
 * Smart Document Organizer — Public Library Styles
 *
 * Responsive CSS Grid layout for the government document library portal.
 * Mobile-first, accessible, high-contrast compatible.
 */

/* ── Import Google Font ───────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ── Design Tokens ─────────────────────────────────────────────────────── */
.sdo-lib-wrap {
    --sdo-brand:      #ffaa00;
    --sdo-brand-dk:   #d8ab1e;
    --sdo-success:    #10b981;
    --sdo-warning:    #f59e0b;
    --sdo-danger:     #ef4444;
    --sdo-info:       #3b82f6;
    --sdo-purple:     #000000;
    --sdo-bg:         #f8fafc;
    --sdo-card-bg:    #ffffff;
    --sdo-border:     #e2e8f0;
    --sdo-text:       #000000;
    --sdo-muted:      #555555;
    --sdo-radius:     10px;
    --sdo-shadow:     0 2px 12px rgba(0,0,0,.06);
    --sdo-shadow-lg:  0 8px 32px rgba(0,0,0,.12);

    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--sdo-text);
    line-height: 1.5;
}

/* ── Skip Link ────────────────────────────────────────────────────────── */
.sdo-skip-link {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
    z-index: -999;
}
.sdo-skip-link:focus {
    left: 6px;
    top: 6px;
    width: auto;
    height: auto;
    padding: 6px 14px;
    background: var(--sdo-brand);
    color: #000000;
    border-radius: 4px;
    z-index: 9999;
    font-weight: 600;
    font-size: 14px;
}

/* ── Search & Filter Bar ──────────────────────────────────────────────── */
.sdo-search-filter-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: var(--sdo-card-bg);
    border: 1px solid var(--sdo-border);
    border-radius: var(--sdo-radius);
    margin-bottom: 18px;
    box-shadow: var(--sdo-shadow);
    flex-wrap: wrap;
    position: sticky;
    top: 0;
    z-index: 20;
}

.sdo-search-input-wrap {
    position: relative;
    flex: 1 1 220px;
    display: flex;
    align-items: center;
}
.sdo-search-icon {
    position: absolute;
    left: 10px;
    color: var(--sdo-muted);
    pointer-events: none;
}
.sdo-search-input {
    width: 100%;
    height: 40px;
    padding: 0 12px 0 36px;
    border: 1.5px solid var(--sdo-border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    color: var(--sdo-text);
    outline: none;
    background: #fff;
    transition: border-color .15s, box-shadow .15s;
}
.sdo-search-input:focus {
    border-color: var(--sdo-brand);
    box-shadow: 0 0 0 3px rgba(255, 205, 49, 0.25);
}

.sdo-filters-wrap { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

.sdo-filter-type,
.sdo-filter-date {
    height: 40px;
    padding: 0 10px;
    border: 1.5px solid var(--sdo-border);
    border-radius: 8px;
    font-size: 13px;
    font-family: inherit;
    color: var(--sdo-text);
    background: #fff;
    outline: none;
    transition: border-color .15s;
    cursor: pointer;
}
.sdo-filter-type:focus,
.sdo-filter-date:focus { border-color: var(--sdo-brand); }

.sdo-clear-filters-btn {
    height: 36px;
    padding: 0 14px;
    border: 1px solid var(--sdo-danger);
    border-radius: 7px;
    background: #fff5f5;
    color: var(--sdo-danger);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: background .12s;
}
.sdo-clear-filters-btn:hover { background: #fee2e2; }

/* ── Breadcrumb Navigation ────────────────────────────────────────────── */
.sdo-breadcrumb { margin-bottom: 14px; }
.sdo-breadcrumb-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 2px;
    font-size: 13px;
}
.sdo-breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--sdo-muted);
}
.sdo-breadcrumb-item:not(:last-child)::after {
    content: '›';
    color: var(--sdo-muted);
    margin-left: 4px;
}
.sdo-breadcrumb-item a { color: #000000; text-decoration: none; font-weight: 600; border-bottom: 2px solid transparent; }
.sdo-breadcrumb-item a:hover { border-color: var(--sdo-brand); }
.sdo-breadcrumb-item--active { color: #666666; font-weight: 600; }
.sdo-breadcrumb-item--active a { color: #666666; pointer-events: none; }

/* ── Portal Layout ────────────────────────────────────────────────────── */
.sdo-portal-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 20px;
    align-items: start;
}
@media (max-width: 768px) {
    .sdo-portal-layout { grid-template-columns: 1fr; }
}

/* ── Sidebar Tree ─────────────────────────────────────────────────────── */
.sdo-portal-sidebar {
    background: var(--sdo-card-bg);
    border: 1px solid var(--sdo-border);
    border-radius: var(--sdo-radius);
    box-shadow: var(--sdo-shadow);
    overflow: hidden;
    position: sticky;
    top: 80px;
}

.sdo-sidebar-toggle-btn {
    display: none;
    width: 100%;
    padding: 12px 16px;
    background: #000000;
    color: #fff;
    border-left: 4px solid var(--sdo-brand);
    font-size: 14px;
    font-weight: 700;
    border-top: none;
    border-right: none;
    border-bottom: none;
    cursor: pointer;
    text-align: left;
}
@media (max-width: 768px) { .sdo-sidebar-toggle-btn { display: block; } }

.sdo-portal-tree-list {
    list-style: none;
    padding: 8px 0;
    margin: 0;
}
@media (max-width: 768px) {
    .sdo-portal-tree-list { display: none; }
    .sdo-portal-tree-list.sdo-sidebar-open { display: block; }
}

.sdo-portal-tree-item {
    position: relative;
    cursor: pointer;
}

.sdo-portal-tree-item-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    font-size: 13px;
    color: var(--sdo-text);
    border-radius: 6px;
    margin: 1px 6px;
    transition: background .13s;
}
.sdo-portal-tree-item-row:hover { background: rgba(0, 0, 0, 0.05); }
.sdo-portal-tree-item.sdo-portal-tree-item--active > .sdo-portal-tree-item-row {
    background: rgba(255, 205, 49, 0.15);
    border-left: 3px solid var(--sdo-brand);
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    font-weight: 700;
    color: #000000;
}

.sdo-folder-toggle-icon { width: 12px; flex-shrink: 0; color: var(--sdo-muted); font-size: 10px; }
.sdo-folder-name-label { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.sdo-folder-count-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 5px;
    border-radius: 999px;
    font-size: 10px;
    font-weight: 800;
    color: #000000;
    flex-shrink: 0;
}

.sdo-portal-sub-list {
    list-style: none;
    padding-left: 20px;
    margin: 0;
    border-left: 2px solid #e2e8f0;
    margin-left: 20px;
}

/* ── Main Portal Content ──────────────────────────────────────────────── */
.sdo-portal-main {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sdo-portal-main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}
.sdo-results-count-announcement {
    font-size: 14px;
    color: var(--sdo-muted);
    font-weight: 500;
}
.sdo-current-count { color: var(--sdo-brand); font-weight: 700; }

.sdo-display-controls { display: flex; gap: 8px; align-items: center; }

.sdo-view-toggle-btn {
    width: 36px;
    height: 36px;
    border: 1.5px solid var(--sdo-border);
    background: #fff;
    border-radius: 7px;
    font-size: 16px;
    cursor: pointer;
    transition: all .13s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.sdo-view-toggle-btn:hover { border-color: #000000; color: #000000; }
.sdo-view-toggle-btn.sdo-view-active { background: #000000; color: #fff; border-color: #000000; }

.sdo-sort-select {
    height: 36px;
    padding: 0 10px;
    border: 1.5px solid var(--sdo-border);
    border-radius: 7px;
    font-size: 13px;
    font-family: inherit;
    background: #fff;
    cursor: pointer;
    outline: none;
}
.sdo-sort-select:focus { border-color: var(--sdo-brand); }

/* ── Document Grid Area ───────────────────────────────────────────────── */
.sdo-portal-grid-area {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 16px;
}
.sdo-portal-grid-area--list {
    grid-template-columns: 1fr;
    gap: 10px;
}

/* ── Document Card ────────────────────────────────────────────────────── */
.sdo-doc-card {
    background: var(--sdo-card-bg);
    border: 1px solid var(--sdo-border);
    border-radius: var(--sdo-radius);
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    box-shadow: var(--sdo-shadow);
    transition: box-shadow .2s, transform .2s;
    position: relative;
    overflow: hidden;
}
.sdo-doc-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--sdo-brand), #000000);
}
.sdo-doc-card:hover {
    box-shadow: var(--sdo-shadow-lg);
    transform: translateY(-2px);
    border-color: #000000;
}

/* List view overrides */
.sdo-portal-grid-area--list .sdo-doc-card {
    flex-direction: row;
    align-items: center;
    gap: 16px;
    padding: 14px 18px;
    transform: none !important;
}
.sdo-portal-grid-area--list .sdo-doc-card::before { width: 3px; height: 100%; top: 0; right: auto; }
.sdo-portal-grid-area--list .sdo-doc-card__top { flex-shrink: 0; }
.sdo-portal-grid-area--list .sdo-doc-card__title { flex: 1; }

.sdo-doc-card__top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}
.sdo-doc-card__icon { font-size: 32px; line-height: 1; }
.sdo-doc-card__ext-badge {
    font-size: 10px;
    font-weight: 800;
    padding: 2px 6px;
    border-radius: 5px;
    letter-spacing: .06em;
    text-transform: uppercase;
    background: #ede9fe;
    color: var(--sdo-brand-dk);
}
.sdo-ext-pdf { background: #fffbeb; color: #b45309; }
.sdo-ext-doc,.sdo-ext-docx { background: #fef08a; color: #854d0e; }
.sdo-ext-xls,.sdo-ext-xlsx { background: #fef9c3; color: #a16207; }

.sdo-doc-card__title {
    font-size: 14px;
    font-weight: 600;
    color: var(--sdo-text);
    margin: 0;
    line-height: 1.35;
}
.sdo-doc-card__title a { color: inherit; text-decoration: none; }
.sdo-doc-card__title a:hover { color: #000000; border-bottom: 2px solid var(--sdo-brand); }

.sdo-doc-card__badges { display: flex; flex-wrap: wrap; gap: 5px; }
.sdo-cat-badge {
    display: inline-block;
    padding: 2px 8px;
    background: #ffaa00;
    border: 1px solid #d8ab1e;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    color: #000000;
}
.sdo-cat-badge--more { background: #f1f5f9; border-color: var(--sdo-border); color: var(--sdo-text); }

.sdo-doc-card__meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}
.sdo-doc-meta-item { font-size: 12px; color: var(--sdo-muted); display: flex; align-items: center; gap: 4px; }

.sdo-doc-card__actions {
    display: flex;
    gap: 8px;
    margin-top: auto;
    flex-wrap: wrap;
}

.sdo-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 7px 14px;
    border-radius: 7px;
    font-size: 12px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    text-decoration: none;
    transition: background .13s, transform .1s;
    border: none;
}
.sdo-btn:active { transform: scale(.97); }

.sdo-btn--preview {
    background: #f1f5f9;
    color: var(--sdo-text);
    border: 1px solid var(--sdo-border);
}
.sdo-btn--preview:hover { background: #e2e8f0; }

.sdo-btn--download {
    background: var(--sdo-brand);
    color: #000000;
}
.sdo-btn--download:hover { background: var(--sdo-brand-dk); color: #000000; }

/* ── Pagination ───────────────────────────────────────────────────────── */
.sdo-frontend-pagination {
    display: flex;
    gap: 6px;
    justify-content: center;
    flex-wrap: wrap;
    padding: 12px 0;
}
.sdo-page-btn {
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border: 1.5px solid var(--sdo-border);
    background: #fff;
    border-radius: 7px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all .13s;
    font-family: inherit;
}
.sdo-page-btn:hover { border-color: var(--sdo-brand); color: var(--sdo-brand); }
.sdo-page-btn.sdo-page-active {
    background: #000000;
    color: #fff;
    border-color: #000000;
}
.sdo-page-btn:disabled { opacity: .45; pointer-events: none; }

/* ── Hidden State ─────────────────────────────────────────────────────── */
.sdo-doc-card.sdo-hidden { display: none; }

/* ── No Results ───────────────────────────────────────────────────────── */
.sdo-no-results-msg {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--sdo-muted);
    font-size: 16px;
}

/* ── Animations ───────────────────────────────────────────────────────── */
@keyframes sdo-fadein {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}
.sdo-doc-card { animation: sdo-fadein .22s ease both; }

/* ── High Contrast ────────────────────────────────────────────────────── */
@media (forced-colors: active) {
    .sdo-doc-card, .sdo-portal-sidebar, .sdo-search-filter-bar {
        border: 1px solid ButtonText;
    }
}