/* ==========================================
   BASE & RESET
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #667eea;
    --primary-dark: #764ba2;
    --secondary: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --gray-lighter: #cbd5e1;
    --bg: #f1f5f9;
    --card-bg: #ffffff;
    --text: #334155;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
    --radius: 16px;
    --radius-sm: 8px;
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1);
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

/* ==========================================
   LAYOUT
   ========================================== */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.main-header {
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    height: 40px;
    width: auto;
    object-fit: contain;
    background: white;
    padding: 4px;
    border-radius: var(--radius-sm);
}

.school-name {
    font-size: 18px;
    font-weight: 600;
}

/* Navigation */
.main-nav {
    display: flex;
    gap: 12px;
}

.nav-link {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
}

.nav-link:hover {
    background: rgba(255,255,255,0.1);
    color: white;
}

.nav-link.active {
    background: rgba(255,255,255,0.2);
    color: white;
}

/* User Menu */
.user-menu {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-menu span {
    font-size: 14px;
    font-weight: 500;
}

.btn-logout {
    background: rgba(255,255,255,0.2);
    color: white;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.btn-logout:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-1px);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* ==========================================
   DASHBOARD GRID
   ========================================== */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    align-items: stretch;
    margin-bottom: 30px;
}

.stats-card,
.upload-card {
    height: 100%;
    display: flex;
    flex-direction: column;
    margin: 0;
}

.stats-card h3,
.upload-card h3 {
    margin-bottom: 20px;
    flex-shrink: 0;
}

.stats-grid {
    display: grid;
    gap: 15px;
    flex: 1;
    min-height: 250px;
}

.stats-card:not(.methodist-fullwidth) .stats-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
}

.methodist-fullwidth {
    grid-column: 1 / -1;
    width: 100%;
}

.methodist-fullwidth .stats-grid {
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: 1fr;
    min-height: 150px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    border-radius: 12px;
    min-height: 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.stat-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-item .stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 5px;
    line-height: 1;
}

.stat-item .stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
    text-align: center;
    font-weight: 500;
}

/* ==========================================
   COMPONENTS
   ========================================== */

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 1.5rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--bg);
    flex-wrap: wrap;
    gap: 1rem;
}

.card-header h2, 
.card-header h3 {
    font-size: 1.25rem;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    line-height: 1;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.btn-secondary {
    background: var(--bg);
    color: var(--text-light);
    border: 1px solid var(--gray-lighter);
}

.btn-secondary:hover {
    background: var(--border);
    color: var(--text);
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-warning {
    background: var(--warning);
    color: white;
}

.btn-success {
    background: var(--secondary);
    color: white;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-lg {
    padding: 12px 24px;
    font-size: 16px;
}

.btn:disabled,
.btn-disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.btn-pdf {
    background: linear-gradient(90deg, #dc2626 0%, #b91c1c 100%);
    color: white;
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text);
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gray-lighter);
    border-radius: var(--radius-sm);
    font-size: 14px;
    transition: all 0.2s;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102,126,234,0.1);
}

input::placeholder {
    color: var(--gray-light);
}

/* ==========================================
   TABLES - ИСПРАВЛЕННЫЕ СТИЛИ
   ========================================== */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    border-collapse: collapse;  /* ← изменено с separate */
    font-size: 14px;
    margin-top: 10px;
}

/* Заголовок таблицы - только thead */
.table thead th {
    background: #f3f4f6;
    color: var(--text-dark);
    font-weight: 600;
    padding: 0.75rem;
    text-align: left;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
    border-bottom: 2px solid var(--border);  /* ← жирная граница только у заголовка */
}

/* Строки данных - только tbody */
.table tbody td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border);  /* ← тонкая граница у данных */
    color: var(--text);
    vertical-align: middle;
}

/* Hover только для данных */
.table tbody tr:hover td {
    background: var(--bg);
}

/* Убираем общие стили th/td чтобы не конфликтовали */
/* (удалены дублирующие стили th, td без .table) */

/* ==========================================
   BADGES
   ========================================== */
.badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    display: inline-block;
    white-space: nowrap;
}

.badge-admin { background: #fee2e2; color: #991b1b; }
.badge-methodist { background: #dbeafe; color: #1e40af; }
.badge-success { background: #d1fae5; color: #065f46; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-info { background: #dbeafe; color: #1e40af; }
.badge-primary { background: #dbeafe; color: #1e40af; }
.badge-secondary { background: #f1f5f9; color: #64748b; }

/* File Type Badges */
.file-badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    color: white;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.file-badge.courses { background: var(--primary); }
.file-badge.mcko { background: var(--secondary); }
.file-badge.olympiad { background: var(--warning); }
.file-badge.exam { background: var(--danger); }
.file-badge.egkr { background: #8b5cf6; }
.file-badge.other { background: var(--gray); }

/* Status Badges */
.status-badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: white;
    text-transform: uppercase;
}

.status-badge.completed { background: var(--secondary); }
.status-badge.processing { background: var(--warning); }
.status-badge.error { background: var(--danger); }
.status-badge.pending { background: var(--info); }

/* ==========================================
   MODALS - ИСПРАВЛЕННЫЕ
   ========================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    backdrop-filter: blur(4px);
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow-y: auto;
}

.modal.active {
    display: flex;
}

.modal-dialog {
    position: relative;
    width: 100%;
    max-width: 500px;
    margin: auto;
}

/* Увеличенная модалка для профиля */
.modal-dialog.modal-lg,
#profileModal .modal-dialog {
    max-width: 1100px;
    width: 95%;
}

.modal-content {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease-out;
    position: relative;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--text-dark);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    flex-wrap: wrap;
}

.btn-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--gray-light);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
    line-height: 1;
    padding: 0;
}

.btn-close:hover {
    background: var(--bg);
    color: var(--text);
}

@keyframes modalSlideIn {
    from { transform: translateY(-20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* ==========================================
   PREVIEW MODAL
   ========================================== */
#previewModal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    z-index: 2000;
    backdrop-filter: blur(4px);
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow-y: auto;
}

#previewModal.active {
    display: flex !important;
}

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

#previewModal .modal-header {
    padding: 20px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    flex-shrink: 0;
}

#previewModal .modal-header h3 {
    margin: 0;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 10px;
    color: white;
}

#previewModal .btn-close {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

#previewModal .btn-close:hover {
    background: rgba(255,255,255,0.3);
    transform: rotate(90deg);
}

.preview-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    padding: 20px;
    background: #f8f9fa;
    border-bottom: 1px solid #e0e0e0;
    flex-shrink: 0;
}

.preview-stats .stat-card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    transition: transform 0.2s;
}

.preview-stats .stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.preview-stats .stat-card.info { border-top: 4px solid #3b82f6; }
.preview-stats .stat-card.success { border-top: 4px solid #10b981; }
.preview-stats .stat-card.warning { border-top: 4px solid #f59e0b; }

.preview-stats .stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 5px;
}

.preview-stats .stat-label {
    font-size: 0.875rem;
    color: #64748b;
    font-weight: 500;
}

.preview-details {
    padding: 20px;
    overflow-y: auto;
    max-height: 400px;
    flex: 1;
}

.preview-details h4 {
    margin: 0 0 15px 0;
    color: #1e293b;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.preview-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    overflow: hidden;
}

.preview-list li {
    padding: 12px 16px;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    transition: background 0.2s;
}

.preview-list li:last-child { border-bottom: none; }
.preview-list li:hover { background: #f8fafc; }
.preview-list li.new-item { background: #f0fdf4; border-left: 4px solid #22c55e; }
.preview-list li.dup-item { background: #fffbeb; border-left: 4px solid #f59e0b; }

.preview-list .fio {
    font-weight: 600;
    color: #1e293b;
    flex: 1;
}

.preview-list .subject {
    color: #64748b;
    font-size: 0.9em;
    margin-right: 10px;
}

.preview-list .badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    flex-shrink: 0;
}

.preview-list .badge-new { background: #22c55e; color: white; }
.preview-list .badge-dup { background: #f59e0b; color: white; }

#previewModal .modal-footer {
    padding: 20px;
    border-top: 1px solid #e0e0e0;
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    background: #f8f9fa;
    flex-shrink: 0;
}

@keyframes modalSlideDown {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* ==========================================
   PROFILE MODAL
   ========================================== */
.profile-header {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.profile-avatar {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.profile-info h2 {
    margin-bottom: 0.25rem;
    font-size: 1.5rem;
    color: var(--text-dark);
}

.subject-badge {
    background: #e0e7ff;
    color: #3730a3;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.875rem;
    display: inline-block;
}

.profile-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.profile-stats .stat-card {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
}

.profile-stats .stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.profile-stats .stat-card .stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
}

/* ==========================================
   TABS
   ========================================== */
.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.5rem;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 0.75rem 1rem;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--text-light);
    font-weight: 500;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
}

.tab-btn:hover {
    background: #f3f4f6;
    color: var(--text-dark);
}

.tab-btn.active {
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.tab-content {
    min-height: 200px;
}

/* Sub-tabs */
.sub-tabs {
    display: flex;
    flex-direction: row;
    gap: 10px;
    margin: 15px 0;
    padding-left: 0;
    flex-wrap: wrap;
}

.sub-tab-btn {
    padding: 8px 16px;
    border: 1px solid #d1d5db;
    background: white;
    color: #6b7280;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    white-space: nowrap;
}

.sub-tab-btn.active {
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: #667eea;
    box-shadow: 0 2px 4px rgba(102, 126, 234, 0.2);
}

/* ==========================================
   TOAST NOTIFICATIONS
   ========================================== */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 400px;
}

.toast {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 16px 20px;
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: flex-start;
    gap: 12px;
    border-left: 4px solid var(--primary);
    animation: slideIn 0.3s ease-out;
    white-space: pre-line;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slideOut {
    to { transform: translateX(100%); opacity: 0; }
}

.toast.hiding {
    animation: slideOut 0.3s ease-in forwards;
}

.toast-icon {
    font-size: 20px;
    flex-shrink: 0;
    margin-top: 2px;
}

.toast.success { border-left-color: var(--secondary); }
.toast.error { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }
.toast.success .toast-icon { color: var(--secondary); }
.toast.error .toast-icon { color: var(--danger); }
.toast.warning .toast-icon { color: var(--warning); }
.toast.info .toast-icon { color: var(--info); }

.toast-content {
    flex: 1;
    color: var(--text);
    font-size: 14px;
}

.toast-close {
    background: none;
    border: none;
    color: var(--gray-light);
    cursor: pointer;
    padding: 4px;
    margin-left: 8px;
    font-size: 14px;
    transition: color 0.2s;
}

.toast-close:hover {
    color: var(--text);
}

/* ==========================================
   PAGINATION
   ========================================== */
#teachersPagination {
    display: none;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    padding: 20px;
    background: var(--bg);
    border-radius: 0 0 var(--radius) var(--radius);
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 1rem;
}

#teachersPagination.active {
    display: flex !important;
}

#teachersPaginationInfo {
    color: var(--text-light);
    font-size: 14px;
    font-weight: 500;
}

#teachersPaginationControls {
    display: flex;
    gap: 5px;
    align-items: center;
    flex-wrap: wrap;
}

#teachersPaginationControls .btn {
    min-width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #ddd;
    background: white;
    color: #333;
    cursor: pointer;
    transition: all 0.2s;
    border-radius: 6px;
    font-size: 14px;
}

#teachersPaginationControls .btn:hover:not(:disabled) {
    background: #f0f0f0;
    border-color: #667eea;
    transform: translateY(-1px);
}

#teachersPaginationControls .btn-primary {
    background: #667eea !important;
    color: white !important;
    border-color: #667eea !important;
}

#teachersPaginationControls .btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: #f5f5f5;
    transform: none;
}

/* ==========================================
   SEARCH & FILTERS
   ========================================== */
.search-box {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.search-box i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-light);
    font-size: 14px;
}

.search-box input {
    width: 100%;
    padding: 10px 40px 10px 40px;
    border: 1px solid var(--gray-lighter);
    border-radius: var(--radius-sm);
    font-size: 14px;
    transition: all 0.2s;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102,126,234,0.1);
}

.filters-bar {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.filter-select {
    padding: 10px 12px;
    border: 1px solid var(--gray-lighter);
    border-radius: var(--radius-sm);
    background: white;
    font-size: 14px;
    color: var(--text);
    cursor: pointer;
    min-width: 150px;
}

/* ==========================================
   TEACHERS TABLE
   ========================================== */
.teachers-section {
    margin-top: 30px;
}

.teachers-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.teachers-table thead th {
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-weight: 600;
    padding: 1rem;
    text-align: left;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border);
}

.teachers-table tbody td {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.teachers-table tbody tr:hover td {
    background: rgba(102, 126, 234, 0.05);
}

.teacher-avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.btn-action {
    padding: 0.5rem 0.75rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: all 0.3s;
}

.btn-view {
    background: #667eea;
    color: white;
}

.btn-view:hover {
    background: #5a67d8;
    transform: translateY(-1px);
}

/* ==========================================
   EDIT MODE & DELETE BUTTONS
   ========================================== */
.edit-mode-active .profile-info h2 { display: none; }
.edit-mode-active #editNameInline { display: block !important; }

#editNameInline {
    display: none;
    font-size: 24px;
    font-weight: 600;
    border: 2px solid #667eea;
    border-radius: 6px;
    padding: 8px 12px;
    width: 100%;
    max-width: 400px;
}

.edit-mode-active #modalSubject { display: none; }
.edit-mode-active #editSubjectsInline { display: block !important; }

#editSubjectsInline {
    display: none;
    font-size: 14px;
    border: 2px solid #667eea;
    border-radius: 6px;
    padding: 6px 10px;
    width: 100%;
    max-width: 300px;
    margin-top: 8px;
}

.delete-row-btn {
    background: #fee2e2;
    color: #dc2626;
    border: none;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s;
    margin-left: 8px;
    display: none;
}

.delete-row-btn:hover {
    background: #dc2626;
    color: white;
}

.edit-mode-active .delete-row-btn {
    display: inline-block;
}

.edit-mode-active .table tbody tr:hover {
    background: #fef3c7;
}

/* ==========================================
   CONFIRM DELETE MODAL
   ========================================== */
.confirm-delete-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.confirm-delete-modal.active {
    display: flex;
}

.confirm-delete-content {
    background: white;
    padding: 24px;
    border-radius: 12px;
    max-width: 400px;
    width: 90%;
    text-align: center;
}

.confirm-delete-content h4 {
    color: #dc2626;
    margin-bottom: 16px;
}

.confirm-delete-content p {
    color: #666;
    margin-bottom: 24px;
}

.confirm-delete-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
}

/* ==========================================
   UTILITIES
   ========================================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.w-full { width: 100%; }

/* Loading Spinner */
.fa-spin {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    display: none;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.alert.show { display: flex; }

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fde68a;
}

/* Avatar */
.avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 1200px) {
    .methodist-fullwidth .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(2, 1fr);
    }
}

@media (max-width: 968px) {
    .main-header {
        flex-wrap: wrap;
        gap: 1rem;
        padding: 1rem;
    }
    
    .main-nav {
        order: 3;
        width: 100%;
        justify-content: center;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-dialog {
        margin: 10px auto;
        max-width: calc(100% - 20px);
    }
    
    .profile-stats {
        grid-template-columns: 1fr;
    }
    
    .stats-card:not(.methodist-fullwidth) .stats-grid {
        min-height: 300px;
    }
}

@media (max-width: 768px) {
    .main-nav { gap: 8px; }
    
    .nav-link {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    .nav-link span { display: none; }
    
    .pagination-container {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-box { max-width: 100%; }
    
    .tabs { justify-content: center; }
    
    .tab-btn {
        font-size: 13px;
        padding: 0.5rem 0.75rem;
    }
    
    .tab-btn span { display: none; }
    
    .teachers-table thead th,
    .teachers-table tbody td {
        padding: 0.75rem 0.5rem;
        font-size: 13px;
    }
    
    .teachers-table thead th:nth-child(1),
    .teachers-table tbody td:nth-child(1) {
        width: 40px;
    }
    
    .teachers-table thead th:nth-child(5),
    .teachers-table thead th:nth-child(6),
    .teachers-table tbody td:nth-child(5),
    .teachers-table tbody td:nth-child(6) {
        display: none;
    }
    
    .preview-stats {
        grid-template-columns: 1fr;
        gap: 10px;
    }
}

@media (max-width: 640px) {
    .methodist-fullwidth .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(2, 1fr);
    }
    
    .stat-item .stat-number {
        font-size: 2rem;
    }
    
    #previewModal .modal-content {
        width: 95%;
        max-height: 90vh;
    }
    
    .preview-list li {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .preview-list .badge {
        align-self: flex-start;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr !important;
        grid-template-rows: repeat(4, 1fr) !important;
        min-height: 400px;
    }
    
    .stat-item {
        min-height: 80px;
    }
    
    .preview-stats {
        grid-template-columns: 1fr;
    }
    
    #previewModal .modal-footer {
        flex-direction: column;
    }
    
    #previewModal .modal-footer .btn {
        width: 100%;
    }
}