/* DFY Document Manager - Frontend Styles v2.0 */
:root {
    --dfy-primary: #2563eb;
    --dfy-primary-hover: #1d4ed8;
    --dfy-button-bg: #2563eb;
    --dfy-button-hover: #1d4ed8;
    --dfy-badge-bg: #2563eb;
    --dfy-secondary: #64748b;
    --dfy-bg: #f8fafc;
    --dfy-card-bg: #ffffff;
    --dfy-text: #1e293b;
    --dfy-text-muted: #64748b;
    --dfy-border: #e2e8f0;
    --dfy-radius: 12px;
    --dfy-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --dfy-shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
    --dfy-transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

#dfy-documents-wrapper {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--dfy-text);
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 0;
}

/* Filters */
.dfy-doc-filters {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.dfy-doc-search-wrap {
    flex: 1;
    min-width: 250px;
    position: relative;
}

.dfy-doc-search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--dfy-text-muted);
    pointer-events: none;
    z-index: 1;
}

.dfy-doc-search {
    width: 100%;
    padding: 12px 16px 12px 44px;
    border: 2px solid var(--dfy-border);
    border-radius: var(--dfy-radius);
    font-size: 15px;
    background: var(--dfy-card-bg);
    color: var(--dfy-text);
    transition: border-color var(--dfy-transition), box-shadow var(--dfy-transition);
    outline: none;
    box-sizing: border-box;
    -webkit-appearance: none;
    appearance: none;
}

.dfy-doc-search::placeholder {
    color: var(--dfy-text-muted);
    opacity: 1;
}

.dfy-doc-search:focus {
    border-color: var(--dfy-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.dfy-doc-category-wrap {
    min-width: 200px;
}

.dfy-doc-category-select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--dfy-border);
    border-radius: var(--dfy-radius);
    font-size: 15px;
    background: var(--dfy-card-bg);
    color: var(--dfy-text);
    cursor: pointer;
    outline: none;
    transition: border-color var(--dfy-transition);
    appearance: auto;
}

.dfy-doc-category-select:focus {
    border-color: var(--dfy-primary);
}

/* Grid */
.dfy-doc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

/* Card - consistent height with flex */
.dfy-doc-card {
    background: var(--dfy-card-bg);
    border-radius: var(--dfy-radius);
    box-shadow: var(--dfy-shadow);
    overflow: hidden;
    transition: transform var(--dfy-transition), box-shadow var(--dfy-transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.dfy-doc-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--dfy-shadow-lg);
}

.dfy-doc-card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, #eff6ff, #e0e7ff);
    flex-shrink: 0;
}

.dfy-doc-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--dfy-transition);
}

.dfy-doc-card:hover .dfy-doc-card-image img {
    transform: scale(1.05);
}

.dfy-doc-card-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--dfy-primary);
}

.dfy-doc-card-placeholder svg {
    width: 64px;
    height: 64px;
    opacity: 0.4;
}

.dfy-doc-card-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--dfy-badge-bg);
    color: #fff;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.dfy-doc-card-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.dfy-doc-card-title {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 8px;
    line-height: 1.3;
    color: var(--dfy-text);
}

.dfy-doc-card-desc {
    font-size: 14px;
    color: var(--dfy-text-muted);
    margin: 0 0 16px;
    line-height: 1.5;
    flex: 1;
}

.dfy-doc-card-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--dfy-border);
}

.dfy-doc-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--dfy-text-muted);
}

.dfy-doc-meta-item svg {
    width: 16px;
    height: 16px;
}

.dfy-doc-card-actions {
    display: flex;
    gap: 10px;
    margin-top: auto;
}

/* Buttons */
.dfy-doc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 18px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--dfy-transition);
    text-decoration: none;
    border: none;
    line-height: 1;
}

.dfy-doc-btn svg {
    width: 16px;
    height: 16px;
}

.dfy-doc-btn-preview {
    background: var(--dfy-bg);
    color: var(--dfy-text);
    border: 1px solid var(--dfy-border);
}

.dfy-doc-btn-preview:hover {
    background: var(--dfy-border);
    color: var(--dfy-text);
}

.dfy-doc-btn-download {
    background: var(--dfy-button-bg);
    color: #ffffff !important;
}

.dfy-doc-btn-download:hover {
    background: var(--dfy-button-hover);
    color: #ffffff !important;
    text-decoration: none;
}

/* No results */
.dfy-doc-no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--dfy-text-muted);
}

.dfy-doc-no-results svg {
    width: 48px;
    height: 48px;
    margin-bottom: 12px;
    opacity: 0.4;
}

.dfy-doc-no-results p {
    font-size: 16px;
    margin: 0;
}

/* Loading */
.dfy-doc-loading {
    text-align: center;
    padding: 30px;
}

.dfy-doc-spinner {
    display: inline-block;
    width: 32px;
    height: 32px;
    border: 3px solid var(--dfy-border);
    border-top-color: var(--dfy-primary);
    border-radius: 50%;
    animation: dfy-spin 0.7s linear infinite;
}

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

/* Preview Modal */
.dfy-doc-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dfy-doc-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.dfy-doc-modal-content {
    position: relative;
    width: 90%;
    max-width: 900px;
    height: 85vh;
    background: var(--dfy-card-bg);
    border-radius: var(--dfy-radius);
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    display: flex;
    flex-direction: column;
    animation: dfy-modal-in 0.3s ease-out;
}

@keyframes dfy-modal-in {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.dfy-doc-modal-close {
    position: absolute;
    top: 12px;
    right: 16px;
    background: rgba(0,0,0,0.08);
    border: none;
    font-size: 28px;
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--dfy-text);
    z-index: 10;
    transition: background var(--dfy-transition);
    line-height: 1;
}

.dfy-doc-modal-close:hover {
    background: rgba(0,0,0,0.15);
}

.dfy-doc-modal-title {
    padding: 16px 60px 12px 20px;
    font-size: 18px;
    font-weight: 700;
    color: var(--dfy-text);
    border-bottom: 1px solid var(--dfy-border);
    flex-shrink: 0;
}

/* PDF.js Preview Container */
.dfy-doc-preview-container {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    background: #f1f5f9;
}

.dfy-doc-preview-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--dfy-text-muted);
}

.dfy-doc-preview-loading p {
    margin-top: 12px;
    font-size: 14px;
}

.dfy-doc-pdf-pages {
    max-width: 800px;
    margin: 0 auto;
}

.dfy-doc-pdf-page {
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border-radius: 4px;
    overflow: hidden;
}

.dfy-doc-preview-footer {
    padding: 10px 20px;
    text-align: center;
    border-top: 1px solid var(--dfy-border);
    background: #fefce8;
    flex-shrink: 0;
}

.dfy-doc-preview-footer p {
    margin: 0;
    font-size: 13px;
    color: #854d0e;
    font-weight: 500;
}

/* Login Required Modal */
.dfy-doc-login-modal-content {
    position: relative;
    width: 90%;
    max-width: 420px;
    background: var(--dfy-card-bg);
    border-radius: var(--dfy-radius);
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    animation: dfy-modal-in 0.3s ease-out;
}

.dfy-doc-login-modal-body {
    padding: 40px 30px;
    text-align: center;
}

.dfy-doc-login-modal-body svg {
    color: var(--dfy-primary);
    margin-bottom: 16px;
}

.dfy-doc-login-modal-body h3 {
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 8px;
    color: var(--dfy-text);
}

.dfy-doc-login-modal-body p {
    font-size: 15px;
    color: var(--dfy-text-muted);
    margin: 0 0 24px;
    line-height: 1.5;
}

.dfy-doc-login-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.dfy-doc-login-actions .dfy-doc-btn {
    min-width: 120px;
    padding: 12px 24px;
    font-size: 15px;
}

/* Responsive */
@media (max-width: 768px) {
    .dfy-doc-grid {
        grid-template-columns: 1fr;
    }

    .dfy-doc-filters {
        flex-direction: column;
    }

    .dfy-doc-modal-content {
        width: 95%;
        height: 90vh;
    }

    .dfy-doc-login-modal-content {
        width: 95%;
    }

    .dfy-doc-login-actions {
        flex-direction: column;
    }

    .dfy-doc-login-actions .dfy-doc-btn {
        width: 100%;
    }
}

/* ===== Dropdown Fix ===== */
.dfy-doc-category-select {
    height: 48px;
    line-height: 48px;
    padding: 0 16px !important;
    font-size: 15px;
    color: var(--dfy-text);
    overflow: visible;
    text-overflow: ellipsis;
    white-space: nowrap;
    -webkit-appearance: menulist;
    -moz-appearance: menulist;
    appearance: menulist;
}

.dfy-doc-category-select option {
    color: var(--dfy-text);
    background: var(--dfy-card-bg);
    padding: 8px 16px;
    font-size: 15px;
    line-height: 1.5;
}

/* ===== Pagination ===== */
.dfy-doc-pagination {
    margin-top: 32px;
    text-align: center;
}

.dfy-doc-pagination-inner {
    display: inline-flex;
    gap: 6px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}

.dfy-doc-page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 8px 14px;
    border: 1px solid var(--dfy-border);
    border-radius: 8px;
    background: var(--dfy-card-bg);
    color: var(--dfy-text);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    line-height: 1;
}

.dfy-doc-page-btn:hover {
    background: var(--dfy-primary);
    color: #fff;
    border-color: var(--dfy-primary);
}

.dfy-doc-page-btn.dfy-doc-page-active {
    background: var(--dfy-primary);
    color: #fff;
    border-color: var(--dfy-primary);
    pointer-events: none;
}

.dfy-doc-page-prev,
.dfy-doc-page-next {
    font-weight: 600;
}