/* Design System: Clean, Minimalist & Friendly Light Mode Defaults */
:root {
    /* Color Tokens - Friendly Light Theme (Default) */
    --bg-app: #fcfbfc;
    --bg-card: #ffffff;
    --bg-card-hover: #fafafa;
    --border-color: #e7e5e4;
    --border-color-hover: #d6d3d1;
    --text-primary: #292524;
    --text-secondary: #57534e;
    --text-muted: #a8a29e;
    
    /* Friendly Accent Colors (Teal & Emerald theme) */
    --color-primary: #0f766e;      /* Friendly Deep Teal */
    --color-primary-glow: rgba(15, 118, 110, 0.06);
    --color-primary-hover: #115e59;
    
    --color-success: #166534;      /* Green */
    --color-success-glow: rgba(22, 101, 52, 0.06);
    
    --color-warning: #b45309;      /* Warm Amber */
    --color-warning-glow: rgba(180, 83, 9, 0.06);
    
    --color-danger: #991b1b;       /* Red */
    --color-danger-glow: rgba(153, 27, 27, 0.06);
    
    --color-purple: #6d28d9;       /* Soft Purple */
    --color-purple-glow: rgba(109, 40, 217, 0.06);

    /* Shadows & Effects (Clean and Soft) */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.02);
    --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.04);
    
    /* Layout */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Minimalist Dark Mode Overrides */
body.dark-theme {
    --bg-app: #121214;
    --bg-card: #1a1a1e;
    --bg-card-hover: #222226;
    --border-color: #2e2e33;
    --border-color-hover: #3e3e46;
    --text-primary: #e4e4e7;
    --text-secondary: #a1a1aa;
    --text-muted: #52525b;
    
    --color-primary: #14b8a6;      /* Teal */
    --color-primary-glow: rgba(20, 184, 166, 0.1);
    --color-primary-hover: #2dd4bf;
    
    --color-success: #34d399;
    --color-success-glow: rgba(52, 211, 153, 0.1);
    
    --color-warning: #fbbf24;
    --color-warning-glow: rgba(251, 191, 36, 0.1);
    
    --color-danger: #f87171;
    --color-danger-glow: rgba(248, 113, 113, 0.1);
    
    --color-purple: #c084fc;
    --color-purple-glow: rgba(192, 132, 252, 0.1);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
}

/* Reset & Global */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-app);
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
    position: relative;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Remove Background Glow blobs for clean minimalist styling */
.glow-bg {
    display: none;
}

/* Scrollbar Styles */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Layout Container */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    min-height: 100vh;
}

/* Minimalist Clean Panel */
.glass-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}
.glass-panel:hover {
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-md);
}

/* Header Section */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-card);
    border-radius: var(--radius-md);
}
.header-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}
.logo-icon {
    color: var(--color-primary);
}
.logo-text h1 {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--color-primary);
}
.logo-text p {
    font-size: 0.72rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-top: 1px;
}

/* Icon Button */
.btn-icon {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 8px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}
.btn-icon:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
    color: var(--text-primary);
}

.icon-sun { display: none; }
body.light-theme .icon-sun { display: block; }
body.light-theme .icon-moon { display: none; }

/* Simplified Stats Dashboard */
.stats-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}
.stat-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
}

.stat-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
}
.icon-blue { background: var(--color-primary-glow); color: var(--color-primary); }
.icon-green { background: var(--color-success-glow); color: var(--color-success); }
.icon-red { background: var(--color-danger-glow); color: var(--color-danger); }
.icon-purple { background: var(--color-purple-glow); color: var(--color-purple); }

.stat-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}
.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Search and Filters Drawer */
.search-filter-panel {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.search-bar-wrapper {
    display: flex;
    gap: 12px;
    width: 100%;
}
.search-input-container {
    position: relative;
    flex-grow: 1;
    display: flex;
    align-items: center;
}
.search-icon {
    position: absolute;
    left: 14px;
    color: var(--text-muted);
    pointer-events: none;
}
.search-input-container input {
    width: 100%;
    padding: 11px 14px 11px 40px;
    background: var(--bg-app);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    outline: none;
    transition: all 0.2s;
}
.search-input-container input:focus {
    border-color: var(--color-primary);
    background: var(--bg-card);
}

.btn-clear-search {
    position: absolute;
    right: 14px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 3px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.btn-clear-search:hover {
    color: var(--text-primary);
}

/* Minimalist Clean Buttons */
.btn-filter, .btn-primary, .btn-secondary {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 11px 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.2s ease;
}
.btn-filter {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    white-space: nowrap;
}
.btn-filter:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
    color: var(--text-primary);
}
.btn-filter.active {
    border-color: var(--color-primary);
    background: var(--color-primary-glow);
    color: var(--color-primary);
}

.btn-primary {
    background: var(--color-primary);
    border: 1px solid transparent;
    color: #fff;
}
.btn-primary:hover {
    background: var(--color-primary-hover);
}

.btn-secondary {
    background: var(--bg-app);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}
.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
    color: var(--text-primary);
}

.btn-text {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}
.btn-text:hover {
    color: var(--color-primary);
    background: var(--color-primary-glow);
}

/* Minimal Collapsible Advanced Filters */
.advanced-filters {
    display: flex;
    flex-direction: column;
    gap: 12px;
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
    max-height: 500px;
    overflow: hidden;
    transition: max-height 0.25s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s;
    opacity: 1;
}
.advanced-filters.collapsed {
    max-height: 0;
    opacity: 0;
    padding-top: 0;
    border-top-color: transparent;
    pointer-events: none;
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
}
.filter-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.filter-group label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Minimal Select styling */
.custom-select {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--text-primary);
    padding: 8px 10px;
    background: var(--bg-app);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    outline: none;
    cursor: pointer;
    transition: all 0.2s;
}
.custom-select:focus {
    border-color: var(--color-primary);
    background: var(--bg-card);
}
.custom-select option {
    background: var(--bg-card);
    color: var(--text-primary);
}

.custom-select.mini {
    padding: 4px 8px;
    font-size: 0.8rem;
}

.filters-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 4px;
}
.filtered-count-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Data Table and Pagination Toolbar */
.data-panel {
    display: flex;
    flex-direction: column;
}
.table-header-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}
.page-size-selector {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}
.table-quick-info {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Clean Table spacing */
.table-responsive {
    overflow-x: auto;
    width: 100%;
}

.tcvn-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.98rem;
}
.tcvn-table th, .tcvn-table td {
    padding: 15px 18px;
    border-bottom: 1px solid var(--border-color);
}
.tcvn-table th {
    background: var(--bg-card);
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.82rem;
    letter-spacing: 0.5px;
    user-select: none;
}

/*.tcvn-table tbody tr */
.tcvn-table tbody tr {
    cursor: pointer;
    transition: background-color 0.15s ease, box-shadow 0.15s ease;
}
.tcvn-table tbody tr:hover {
    background: var(--bg-card-hover);
}
.tcvn-table tbody tr.selected-row {
    background: var(--color-primary-glow) !important;
    box-shadow: inset 3px 0 0 var(--color-primary);
}

/* Column Width overrides */
.col-stt { width: 50px; text-align: center; color: var(--text-muted); }
.col-code { width: 160px; font-weight: 600; color: var(--color-primary); }
.col-title { min-width: 300px; }
.col-year { width: 80px; text-align: center; }
.col-domain { width: 120px; color: var(--text-secondary); }
.col-status { width: 120px; }
.col-actions { width: 70px; text-align: center; }

/* Sortable column cursor */
.sortable {
    cursor: pointer;
}
.sortable:hover {
    color: var(--text-primary);
}
.sort-icon {
    display: inline-block;
    width: 10px;
    height: 10px;
    margin-left: 2px;
    vertical-align: middle;
    position: relative;
}
.sort-icon::before, .sort-icon::after {
    content: '';
    position: absolute;
    left: 1px;
    border: 3px solid transparent;
    opacity: 0.3;
}
.sort-icon::before {
    top: -2px;
    border-bottom-color: currentColor;
}
.sort-icon::after {
    bottom: -2px;
    border-top-color: currentColor;
}
.sort-asc .sort-icon::before { opacity: 1; color: var(--color-primary); }
.sort-asc .sort-icon::after { opacity: 0.1; }
.sort-desc .sort-icon::after { opacity: 1; color: var(--color-primary); }
.sort-desc .sort-icon::before { opacity: 0.1; }

/* Friendly Soft Badges (Not neon) */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 0.72rem;
    font-weight: 600;
}
.status-badge::before {
    content: '';
    width: 5px;
    height: 5px;
    border-radius: 50%;
}
.status-active {
    background: var(--color-success-glow);
    color: var(--color-success);
    border: 1px solid rgba(22, 101, 52, 0.12);
}
.status-active::before { background: var(--color-success); }

.status-expired {
    background: var(--color-danger-glow);
    color: var(--color-danger);
    border: 1px solid rgba(153, 27, 27, 0.12);
}
.status-expired::before { background: var(--color-danger); }

/* File Types Badge */
.file-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 20px;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
}
.file-pdf { background: rgba(153, 27, 27, 0.08); color: var(--color-danger); border: 1px solid rgba(153, 27, 27, 0.15); }
.file-doc, .file-docx { background: rgba(15, 118, 110, 0.08); color: var(--color-primary); border: 1px solid rgba(15, 118, 110, 0.15); }

/* Table loading & empty states */
.table-loading {
    text-align: center;
    padding: 32px !important;
    color: var(--text-secondary);
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    text-align: center;
    color: var(--text-secondary);
}
.empty-state svg {
    margin-bottom: 12px;
    color: var(--text-muted);
}
.empty-state h3 {
    font-size: 1.05rem;
    margin-bottom: 6px;
    color: var(--text-primary);
}
.empty-state p {
    font-size: 0.85rem;
    margin-bottom: 16px;
    max-width: 320px;
}

/* Pagination panel */
.pagination-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-top: 1px solid var(--border-color);
}
.pagination-info {
    font-size: 0.8rem;
    color: var(--text-secondary);
}
.pagination-buttons {
    display: flex;
    gap: 4px;
}
.btn-page {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 600;
    width: 30px;
    height: 30px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}
.btn-page:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
    color: var(--text-primary);
}
.btn-page.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}
.btn-page:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Footer Section */
.app-footer-bar {
    text-align: center;
    padding: 24px 0;
    color: var(--text-muted);
    font-size: 0.78rem;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.sharepoint-note {
    font-size: 0.72rem;
}

/* Modal dialogue Styling */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 16px;
    animation: fadeInOverlay 0.2s ease-out;
}
.modal-container {
    width: 100%;
    max-width: 580px;
    max-height: 92vh;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: max-width 0.25s ease;
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}
.modal-header h2 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-primary);
}
.close-btn {
    border: 1px solid transparent;
    padding: 4px;
}

.modal-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    overflow-y: auto;
}

/* Modal Document Viewer Preview Styles */
.modal-preview-wrapper {
    display: flex;
    flex-direction: column;
    margin-top: 12px;
    border-top: 1px dashed var(--border-color);
    padding-top: 16px;
}

#modalPreviewIframe {
    width: 100%;
    height: 420px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: #ffffff;
}

@media (min-width: 768px) {
    .modal-container.large-modal {
        max-width: 850px;
    }
    .modal-container.large-modal #modalPreviewIframe {
        height: 520px;
    }
}

.detail-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.detail-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.detail-value {
    font-size: 1.05rem;
    color: var(--text-primary);
}
.detail-value.highlight {
    font-size: 1.2rem;
    font-weight: 600;
    line-height: 1.35;
    color: var(--text-primary);
}
.detail-value.code-font {
    font-family: Consolas, Monaco, monospace;
    font-size: 0.92rem;
    background: var(--bg-app);
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    word-break: break-all;
}

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

.sharepoint-section {
    background: var(--bg-app);
    border: 1px solid var(--border-color);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
}
.sharepoint-section h3 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-primary);
}
.sharepoint-link-desc {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.modal-actions-bar {
    display: flex;
    gap: 8px;
    margin-top: 2px;
}

.toast-message {
    position: absolute;
    bottom: -32px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-success);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    z-index: 10;
    animation: fadeInUpToast 0.15s ease-out;
}

/* Animations */
@keyframes fadeInOverlay {
    from { opacity: 0; }
    to { opacity: 1; }
}

.animate-fade-in {
    opacity: 0;
    transform: translateY(5px);
    animation: fadeIn 0.3s ease-out forwards;
    animation-delay: calc(var(--delay) * 0.04s);
}

@keyframes fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-zoom-in {
    opacity: 0;
    transform: scale(0.97);
    animation: zoomIn 0.2s ease-out forwards;
}

@keyframes zoomIn {
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes fadeInUpToast {
    from {
        opacity: 0;
        transform: translate(-50%, 3px);
    }
    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

.main-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 100%;
}

@media (max-width: 768px) {
    .app-header {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
    .header-actions {
        width: 100%;
        justify-content: flex-end;
    }
    .detail-grid {
        grid-template-columns: 1fr;
    }
    .search-bar-wrapper {
        flex-direction: column;
    }
    .btn-filter {
        width: 100%;
    }
    .pagination-container {
        flex-direction: column;
        gap: 12px;
        align-items: center;
    }
    .col-year, .col-domain, .col-status {
        display: none;
    }
}