/* ==========================================
   STYLES MDT POLICE
   ========================================== */

:root {
    /* Couleurs principales */
    --primary-color: #2C3E50;
    --secondary-color: #3498DB;
    --success-color: #27AE60;
    --warning-color: #F39C12;
    --danger-color: #E74C3C;
    --info-color: #3498DB;
    
    /* Couleurs de fond */
    --bg-primary: #ECF0F1;
    --bg-secondary: #FFFFFF;
    --bg-dark: #2C3E50;
    
    /* Couleurs de texte */
    --text-primary: #2C3E50;
    --text-secondary: #7F8C8D;
    --text-light: #BDC3C7;
    --text-white: #FFFFFF;
    
    /* Bordures */
    --border-color: #BDC3C7;
    --border-radius: 8px;
    
    /* Ombres */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
    
    /* Espacements */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
}

/* ==========================================
   RESET & BASE
   ========================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 24px; }
h2 { font-size: 20px; }
h3 { font-size: 18px; }

/* ==========================================
   ÉCRANS
   ========================================== */

.screen {
    display: none;
}

.screen.active {
    display: block;
}

/* ==========================================
   ÉCRAN DE CONNEXION
   ========================================== */

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #2C3E50 0%, #3498DB 100%);
    padding: var(--spacing-lg);
}

.login-card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl);
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-header h1 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 0;
}

.login-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
}

/* ==========================================
   HEADER
   ========================================== */

.mdt-header {
    background: var(--bg-dark);
    color: var(--text-white);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left h1 {
    margin: 0;
    font-size: 20px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.user-name {
    font-weight: 600;
}

.user-grade {
    background: var(--warning-color);
    color: var(--text-white);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.user-matricule {
    color: var(--text-light);
    font-size: 12px;
}

/* ==========================================
   NAVIGATION
   ========================================== */

.mdt-navigation {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    overflow-x: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: all 0.3s;
    white-space: nowrap;
}

.nav-item:hover {
    background: var(--bg-primary);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--primary-color);
    color: var(--text-white);
}

.nav-icon {
    font-size: 18px;
}

/* ==========================================
   CONTENU PRINCIPAL
   ========================================== */

.mdt-content {
    padding: var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================
   FORMULAIRES
   ========================================== */

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--secondary-color);
}

textarea {
    resize: vertical;
    min-height: 80px;
}

/* ==========================================
   BOUTONS
   ========================================== */

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: #1e2b37;
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover:not(:disabled) {
    background: #5f6c7d;
}

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

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

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

.btn-block {
    width: 100%;
    justify-content: center;
}

.btn-icon {
    padding: 6px 8px;
    font-size: 16px;
    background: transparent;
    border: none;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.2s;
}

.btn-icon:hover {
    background: var(--bg-primary);
}

/* ==========================================
   SECTIONS
   ========================================== */

.section {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    margin: 0;
}

/* ==========================================
   STATISTIQUES
   ========================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s, box-shadow 0.3s;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    font-size: 32px;
    margin-bottom: var(--spacing-sm);
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ==========================================
   TABLEAUX
   ========================================== */

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.data-table thead {
    background: var(--bg-primary);
}

.data-table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
}

.data-table td {
    padding: 12px;
    border-top: 1px solid var(--border-color);
}

.data-table tbody tr:hover {
    background: var(--bg-primary);
}

.font-mono {
    font-family: 'Courier New', monospace;
}

/* ==========================================
   BADGES
   ========================================== */

.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    text-transform: capitalize;
}

.badge-ouvert { background: #E8F5E9; color: #2E7D32; }
.badge-en_cours { background: #FFF3E0; color: #E65100; }
.badge-clos { background: #E3F2FD; color: #1565C0; }
.badge-archive { background: #F5F5F5; color: #616161; }

.badge-faible { background: #E8F5E9; color: #2E7D32; }
.badge-moyenne { background: #FFF3E0; color: #E65100; }
.badge-haute { background: #FFE5E5; color: #C62828; }
.badge-critique { background: #B71C1C; color: #FFFFFF; }

.badge-actif { background: #E8F5E9; color: #2E7D32; }
.badge-suspendu { background: #FFECB3; color: #F57C00; }
.badge-radie { background: #FFCDD2; color: #C62828; }

/* ==========================================
   FILTRES
   ========================================== */

.filters {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.filters select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-secondary);
}

/* ==========================================
   GRILLE DE GRADES
   ========================================== */

.grades-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.grade-card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s, box-shadow 0.3s;
}

.grade-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.grade-header {
    padding: var(--spacing-lg);
    color: var(--text-white);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.grade-header h3 {
    margin: 0;
    font-size: 18px;
}

.grade-niveau {
    background: rgba(255, 255, 255, 0.3);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
}

.grade-body {
    padding: var(--spacing-lg);
}

.grade-stat {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.grade-actions {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

/* ==========================================
   MODALES
   ========================================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-lg);
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.modal-header h2 {
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
}

.modal-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    margin-top: var(--spacing-lg);
}

/* ==========================================
   MESSAGES
   ========================================== */

.error-message {
    background: #FFEBEE;
    color: #C62828;
    padding: 12px;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.success-message {
    background: #E8F5E9;
    color: #2E7D32;
    padding: 12px;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.text-muted {
    color: var(--text-secondary);
    font-size: 12px;
}

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 768px) {
    .mdt-header {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .grades-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .data-table {
        font-size: 12px;
    }
    
    .data-table th,
    .data-table td {
        padding: 8px;
    }
}

/* ==========================================
   UTILITAIRES
   ========================================== */

.text-center { text-align: center; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mt-lg { margin-top: var(--spacing-lg); }
.hidden { display: none !important; }