/**
 * Gov PDF Organizer — Frontend Stylesheet
 *
 * Styles for the [govpdf_library] shortcode.
 * Fully responsive, accessible, and framework-independent.
 * Uses CSS custom properties for easy theme customisation.
 *
 * Google Font (Inter) is loaded via @import for modern typography.
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

/* ── Design Tokens ─────────────────────────────────────────────────────── */
.govpdf-library {
    --gpdf-brand:       #6366f1;
    --gpdf-brand-light: #ede9fe;
    --gpdf-brand-dk:    #4f46e5;
    --gpdf-success:     #10b981;
    --gpdf-warning:     #f59e0b;

    --gpdf-bg:          #f8fafc;
    --gpdf-card:        #ffffff;
    --gpdf-border:      #e2e8f0;
    --gpdf-text:        #0f172a;
    --gpdf-muted:       #64748b;

    --gpdf-radius-sm:   8px;
    --gpdf-radius:      14px;
    --gpdf-radius-lg:   20px;
    --gpdf-shadow:      0 2px 12px -2px rgba(0, 0, 0, 0.08);
    --gpdf-shadow-hov:  0 8px 28px -6px rgba(99, 102, 241, 0.25);
    --gpdf-transition:  0.22s cubic-bezier(0.4, 0, 0.2, 1);

    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--gpdf-text);
    background: var(--gpdf-bg);
    border-radius: var(--gpdf-radius-lg);
    padding: clamp(20px, 4vw, 40px);
    box-sizing: border-box;
}

/* ── Toolbar ──────────────────────────────────────────────────────────── */
.govpdf-toolbar {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.govpdf-search-wrap {
    position: relative;
    flex: 1;
    min-width: 220px;
}

.govpdf-search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 16px;
    opacity: 0.5;
    pointer-events: none;
}

.govpdf-search-input {
    width: 100%;
    padding: 12px 16px 12px 42px;
    font-size: 15px;
    font-family: inherit;
    border: 2px solid var(--gpdf-border);
    border-radius: var(--gpdf-radius);
    background: var(--gpdf-card);
    color: var(--gpdf-text);
    outline: none;
    transition: border-color var(--gpdf-transition), box-shadow var(--gpdf-transition);
    box-sizing: border-box;
}

.govpdf-search-input:focus {
    border-color: var(--gpdf-brand);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.govpdf-toolbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.govpdf-sort-select {
    padding: 11px 14px;
    font-size: 14px;
    font-family: inherit;
    border: 2px solid var(--gpdf-border);
    border-radius: var(--gpdf-radius);
    background: var(--gpdf-card);
    color: var(--gpdf-text);
    outline: none;
    cursor: pointer;
    transition: border-color var(--gpdf-transition);
}

.govpdf-sort-select:focus {
    border-color: var(--gpdf-brand);
}

/* ── View Toggle ─────────────────────────────────────────────────────── */
.govpdf-view-toggle {
    display: flex;
    border: 2px solid var(--gpdf-border);
    border-radius: var(--gpdf-radius-sm);
    overflow: hidden;
}

.govpdf-view-btn {
    padding: 8px 14px;
    font-size: 18px;
    background: var(--gpdf-card);
    color: var(--gpdf-muted);
    border: none;
    cursor: pointer;
    transition: background var(--gpdf-transition), color var(--gpdf-transition);
    line-height: 1;
}

.govpdf-view-btn:hover,
.govpdf-view-btn--active {
    background: var(--gpdf-brand);
    color: #fff;
}

/* ── Category Pills ──────────────────────────────────────────────────── */
.govpdf-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.govpdf-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    background: var(--gpdf-card);
    color: var(--gpdf-muted);
    border: 2px solid var(--gpdf-border);
    border-radius: 999px;
    cursor: pointer;
    transition:
        background var(--gpdf-transition),
        color var(--gpdf-transition),
        border-color var(--gpdf-transition),
        transform var(--gpdf-transition),
        box-shadow var(--gpdf-transition);
    outline: none;
}

.govpdf-pill:hover {
    border-color: var(--gpdf-brand);
    color: var(--gpdf-brand);
    transform: translateY(-1px);
}

.govpdf-pill:focus-visible {
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
    border-color: var(--gpdf-brand);
}

.govpdf-pill--active {
    background: var(--gpdf-brand);
    color: #fff;
    border-color: var(--gpdf-brand);
}

.govpdf-pill--active:hover {
    background: var(--gpdf-brand-dk);
    border-color: var(--gpdf-brand-dk);
    color: #fff;
}

.govpdf-pill-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 5px;
    font-size: 11px;
    font-weight: 700;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.1);
    line-height: 1;
}

.govpdf-pill--active .govpdf-pill-count {
    background: rgba(255, 255, 255, 0.25);
}

/* ── Results Bar ─────────────────────────────────────────────────────── */
.govpdf-results-bar {
    display: flex;
    align-items: center;
    margin-bottom: 16px;
}

.govpdf-results-count {
    font-size: 14px;
    font-weight: 700;
    color: var(--gpdf-muted);
    background: var(--gpdf-card);
    border: 1px solid var(--gpdf-border);
    padding: 4px 14px;
    border-radius: 999px;
}

/* ── Grid Layout ─────────────────────────────────────────────────────── */
.govpdf-grid--grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.govpdf-grid--list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* ── PDF Card ─────────────────────────────────────────────────────────── */
.govpdf-card {
    background: var(--gpdf-card);
    border: 2px solid var(--gpdf-border);
    border-radius: var(--gpdf-radius);
    padding: 22px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    box-shadow: var(--gpdf-shadow);
    transition:
        transform var(--gpdf-transition),
        box-shadow var(--gpdf-transition),
        border-color var(--gpdf-transition);
    position: relative;
    overflow: hidden;
}

.govpdf-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--gpdf-brand), #8b5cf6);
    opacity: 0;
    transition: opacity var(--gpdf-transition);
}

.govpdf-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--gpdf-shadow-hov);
    border-color: var(--gpdf-brand);
}

.govpdf-card:hover::after {
    opacity: 1;
}

/* List view card overrides */
.govpdf-grid--list .govpdf-card {
    flex-direction: row;
    align-items: center;
    gap: 20px;
    padding: 16px 20px;
}

.govpdf-grid--list .govpdf-card:hover {
    transform: translateX(4px);
}

.govpdf-grid--list .govpdf-card__header { flex-shrink: 0; }
.govpdf-grid--list .govpdf-card__title  { font-size: 15px; flex: 1; }
.govpdf-grid--list .govpdf-card__meta   { flex-direction: row; flex-shrink: 0; }
.govpdf-grid--list .govpdf-card__download { flex-shrink: 0; }

/* ── Card Subcomponents ──────────────────────────────────────────────── */
.govpdf-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.govpdf-card__icon {
    font-size: 28px;
    line-height: 1;
}

.govpdf-card__verified-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 700;
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
    border-radius: 999px;
    letter-spacing: 0.02em;
}

.govpdf-card__title {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--gpdf-text);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.govpdf-card__cats {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.govpdf-cat-badge {
    display: inline-block;
    padding: 3px 10px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.03em;
    background: var(--gpdf-brand-light);
    color: var(--gpdf-brand-dk);
    border-radius: 999px;
    cursor: pointer;
    transition: background var(--gpdf-transition), color var(--gpdf-transition);
}

.govpdf-cat-badge:hover {
    background: var(--gpdf-brand);
    color: #fff;
}

.govpdf-card__meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 12px;
    color: var(--gpdf-muted);
    margin-top: auto;
}

.govpdf-card__size,
.govpdf-card__date {
    display: flex;
    align-items: center;
    gap: 5px;
}

.govpdf-card__download {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 18px;
    font-size: 13px;
    font-weight: 700;
    font-family: inherit;
    color: #fff;
    background: linear-gradient(135deg, var(--gpdf-brand), #8b5cf6);
    border: none;
    border-radius: var(--gpdf-radius-sm);
    cursor: pointer;
    text-decoration: none;
    transition: opacity var(--gpdf-transition), transform var(--gpdf-transition), box-shadow var(--gpdf-transition);
    box-shadow: 0 3px 10px -2px rgba(99, 102, 241, 0.4);
    margin-top: 4px;
}

.govpdf-card__download:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 6px 18px -4px rgba(99, 102, 241, 0.5);
    color: #fff;
}

.govpdf-card__download:focus-visible {
    outline: 3px solid var(--gpdf-brand);
    outline-offset: 3px;
}

/* ── Hidden cards (filtered out) ─────────────────────────────────────── */
.govpdf-card[data-hidden="true"] {
    display: none;
}

/* ── Empty State ─────────────────────────────────────────────────────── */
.govpdf-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--gpdf-muted);
    font-size: 16px;
}

/* ── Pagination ──────────────────────────────────────────────────────── */
.govpdf-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 28px;
    flex-wrap: wrap;
}

.govpdf-page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    background: var(--gpdf-card);
    color: var(--gpdf-muted);
    border: 2px solid var(--gpdf-border);
    border-radius: var(--gpdf-radius-sm);
    cursor: pointer;
    transition: all var(--gpdf-transition);
}

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

.govpdf-page-btn:focus-visible {
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
    outline: none;
}

.govpdf-page-btn--active {
    background: var(--gpdf-brand);
    color: #fff;
    border-color: var(--gpdf-brand);
}

.govpdf-page-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.govpdf-page-info {
    font-size: 13px;
    color: var(--gpdf-muted);
    font-weight: 600;
    padding: 0 8px;
}

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 640px) {
    .govpdf-library {
        padding: 16px;
    }

    .govpdf-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .govpdf-toolbar-right {
        justify-content: space-between;
    }

    .govpdf-grid--grid {
        grid-template-columns: 1fr;
    }

    .govpdf-grid--list .govpdf-card {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ── No-animation accessibility preference ───────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    .govpdf-card,
    .govpdf-card::after,
    .govpdf-pill,
    .govpdf-card__download {
        transition: none;
    }
}