/* Modern Document Library - Frontend Styles */

.mdl-wrapper {
    --mdl-primary: #4F6BF2;
    --mdl-primary-light: rgba(79, 107, 242, 0.1);
    --mdl-accent: #22C55E;
    --mdl-background: #F8FAFC;
    --mdl-card: #FFFFFF;
    --mdl-text: #1E293B;
    --mdl-text-muted: #64748B;
    --mdl-border: #E2E8F0;
    --mdl-radius: 12px;
    --mdl-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --mdl-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --mdl-cat-accreditation: #4F6BF2;
    --mdl-cat-annual-reports: #22C55E;
    --mdl-cat-policies: #F59E0B;
    --mdl-cat-forms: #A855F7;

    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--mdl-text);
    background: var(--mdl-background);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0;
}

.mdl-wrapper .screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.mdl-wrapper *,
.mdl-wrapper *::before,
.mdl-wrapper *::after {
    box-sizing: border-box;
}

.mdl-header {
    background: var(--mdl-card);
    border-bottom: 1px solid var(--mdl-border);
    padding: 1.5rem 2rem;
}

.mdl-header-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.mdl-logo {
    width: 40px;
    height: 40px;
    background: var(--mdl-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.mdl-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0;
    color: var(--mdl-text);
}

.mdl-subtitle {
    font-size: 0.875rem;
    color: var(--mdl-text-muted);
    margin: 0;
}

.mdl-hero {
    background: linear-gradient(to bottom, var(--mdl-primary-light), transparent);
    border-bottom: 1px solid var(--mdl-border);
    padding: 3rem 2rem;
}

.mdl-hero-title {
    font-size: 2rem;
    font-weight: 700;
    margin: 0 0 1rem;
    color: var(--mdl-text);
}

.mdl-hero-description {
    font-size: 1.125rem;
    color: var(--mdl-text-muted);
    margin: 0;
    max-width: 600px;
    line-height: 1.6;
}

.mdl-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 2rem;
}

@media (min-width: 768px) {
    .mdl-stats {
        grid-template-columns: repeat(4, 1fr);
    }
}

.mdl-stat-card {
    background: var(--mdl-card);
    border: 1px solid var(--mdl-border);
    border-radius: var(--mdl-radius);
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--mdl-shadow);
    transition: box-shadow 0.3s ease;
}

.mdl-stat-card:hover {
    box-shadow: var(--mdl-shadow-lg);
}

.mdl-stat-icon {
    width: 40px;
    height: 40px;
    background: var(--mdl-primary-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--mdl-primary);
    flex-shrink: 0;
}

.mdl-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: var(--mdl-text);
}

.mdl-stat-label {
    font-size: 0.75rem;
    color: var(--mdl-text-muted);
    margin: 0;
}

.mdl-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem 2rem;
}

@media (min-width: 640px) {
    .mdl-controls {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.mdl-search {
    position: relative;
    width: 100%;
    max-width: 400px;
}

.mdl-search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--mdl-text-muted);
    pointer-events: none;
}

.mdl-search-input {
    width: 100%;
    height: 40px;
    padding: 0 40px;
    border: 1px solid var(--mdl-border);
    border-radius: var(--mdl-radius);
    font-size: 0.875rem;
    background: var(--mdl-card);
    color: var(--mdl-text);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.mdl-search-input:focus {
    border-color: var(--mdl-primary);
    box-shadow: 0 0 0 3px var(--mdl-primary-light);
}

.mdl-search-input::placeholder {
    color: var(--mdl-text-muted);
}

.mdl-search-clear {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--mdl-text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: background 0.2s, color 0.2s;
}

.mdl-search-clear:hover {
    background: var(--mdl-border);
    color: var(--mdl-text);
}

.mdl-sort {
    position: relative;
}

.mdl-sort-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    height: 40px;
    padding: 0 1rem;
    border: 1px solid var(--mdl-border);
    border-radius: var(--mdl-radius);
    background: var(--mdl-card);
    color: var(--mdl-text);
    font-size: 0.875rem;
    cursor: pointer;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.mdl-sort-btn:hover {
    border-color: var(--mdl-primary);
}

.mdl-sort-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 4px;
    min-width: 160px;
    background: var(--mdl-card);
    border: 1px solid var(--mdl-border);
    border-radius: var(--mdl-radius);
    box-shadow: var(--mdl-shadow-lg);
    z-index: 100;
    display: none;
}

.mdl-sort-dropdown.active {
    display: block;
}

.mdl-sort-dropdown button {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    border: none;
    background: transparent;
    text-align: left;
    font-size: 0.875rem;
    color: var(--mdl-text);
    cursor: pointer;
    transition: background 0.2s;
}

.mdl-sort-dropdown button:hover {
    background: var(--mdl-background);
}

.mdl-sort-dropdown button.active {
    color: var(--mdl-primary);
    font-weight: 600;
}

.mdl-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0 2rem 1rem;
}

.mdl-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    height: 36px;
    padding: 0 1rem;
    border: 1px solid var(--mdl-border);
    border-radius: var(--mdl-radius);
    background: var(--mdl-card);
    color: var(--mdl-text);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.mdl-filter-btn:hover {
    border-color: var(--mdl-primary);
    color: var(--mdl-primary);
}

.mdl-filter-btn.active {
    background: var(--mdl-primary);
    border-color: var(--mdl-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(79, 107, 242, 0.3);
}

.mdl-filter-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 600;
}

.mdl-filter-btn:not(.active) .mdl-filter-count {
    background: var(--mdl-background);
    color: var(--mdl-text-muted);
}

.mdl-filter-btn.active .mdl-filter-count {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.mdl-results {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0 2rem 1rem;
    font-size: 0.875rem;
    color: var(--mdl-text-muted);
}

.mdl-grid {
    display: grid;
    gap: 1rem;
    padding: 0 2rem 2rem;
}

@media (min-width: 640px) {
    .mdl-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .mdl-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.mdl-card {
    background: var(--mdl-card);
    border: 1px solid var(--mdl-border);
    border-radius: var(--mdl-radius);
    padding: 1.25rem;
    display: flex;
    gap: 1rem;
    transition: all 0.3s ease;
}

.mdl-card:hover {
    box-shadow: var(--mdl-shadow-lg);
    border-color: rgba(79, 107, 242, 0.3);
}

.mdl-card-icon {
    width: 48px;
    height: 48px;
    background: var(--mdl-primary-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--mdl-primary);
    flex-shrink: 0;
    transition: background 0.3s;
}

.mdl-card:hover .mdl-card-icon {
    background: rgba(79, 107, 242, 0.2);
}

.mdl-card-content {
    flex: 1;
    min-width: 0;
}

.mdl-card-title {
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 0.5rem;
    color: var(--mdl-text);
    line-height: 1.4;
}

.mdl-card-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.mdl-card-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid;
}

.mdl-badge-accreditation {
    background: rgba(79, 107, 242, 0.1);
    color: var(--mdl-cat-accreditation);
    border-color: rgba(79, 107, 242, 0.2);
}

.mdl-badge-annual-reports {
    background: rgba(34, 197, 94, 0.1);
    color: var(--mdl-cat-annual-reports);
    border-color: rgba(34, 197, 94, 0.2);
}

.mdl-badge-policies {
    background: rgba(245, 158, 11, 0.1);
    color: var(--mdl-cat-policies);
    border-color: rgba(245, 158, 11, 0.2);
}

.mdl-badge-forms {
    background: rgba(168, 85, 247, 0.1);
    color: var(--mdl-cat-forms);
    border-color: rgba(168, 85, 247, 0.2);
}

.mdl-card-info {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    color: var(--mdl-text-muted);
}

.mdl-card-actions {
    display: flex;
    gap: 0.5rem;
}

.mdl-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    height: 32px;
    padding: 0 0.75rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.mdl-btn-outline {
    background: transparent;
    border: 1px solid var(--mdl-border);
    color: var(--mdl-text);
}

.mdl-btn-outline:hover {
    border-color: var(--mdl-primary);
    color: var(--mdl-primary);
    background: var(--mdl-primary-light);
}

.mdl-btn-primary {
    background: var(--mdl-primary);
    border: 1px solid var(--mdl-primary);
    color: white;
}

.mdl-btn-primary:hover {
    background: #3D59E0;
    border-color: #3D59E0;
}

.mdl-empty {
    text-align: center;
    padding: 4rem 2rem;
}

.mdl-empty-icon {
    width: 64px;
    height: 64px;
    background: var(--mdl-background);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--mdl-text-muted);
}

.mdl-empty-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0 0 0.5rem;
    color: var(--mdl-text);
}

.mdl-empty-text {
    font-size: 0.875rem;
    color: var(--mdl-text-muted);
    margin: 0 0 1rem;
}

.mdl-footer {
    border-top: 1px solid var(--mdl-border);
    background: var(--mdl-card);
    padding: 1.5rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 2rem;
}

@media (min-width: 640px) {
    .mdl-footer {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.mdl-footer p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--mdl-text-muted);
}