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

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --dark-text: #333;
    --border-color: #ddd;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--dark-text);
    line-height: 1.6;
    background: var(--light-bg);
}

/* Page de connexion */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 2rem;
}

.login-container {
    width: 100%;
    max-width: 450px;
}

.login-box {
    background: var(--white);
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    overflow: hidden;
}

.login-header {
    background: var(--primary-color);
    color: var(--white);
    padding: 2rem;
    text-align: center;
}

.login-header i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.login-header h1 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.login-header p {
    opacity: 0.9;
}

.login-tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
}

.tab-btn {
    flex: 1;
    padding: 1rem;
    border: none;
    background: var(--white);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--dark-text);
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
}

.tab-btn.active {
    color: var(--secondary-color);
    border-bottom-color: var(--secondary-color);
    background: var(--light-bg);
}

.login-form {
    display: none;
    padding: 2rem;
}

.login-form.active {
    display: block;
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group label i {
    margin-right: 0.5rem;
    color: var(--secondary-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

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

.btn {
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--secondary-color);
    color: var(--white);
    width: 100%;
}

.btn-primary:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: var(--white);
    color: var(--secondary-color);
    border: 2px solid var(--secondary-color);
}

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

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.9rem;
}

.demo-credentials {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--light-bg);
    border-radius: 8px;
    text-align: center;
    font-size: 0.9rem;
    color: #666;
}

.login-footer {
    padding: 1rem;
    text-align: center;
    color: #666;
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
}

/* Dashboard Header */
.dashboard-header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.logo i {
    font-size: 2rem;
    color: var(--secondary-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-logout {
    padding: 0.6rem 1.2rem;
    background: var(--danger-color);
    color: var(--white);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.3s;
}

.btn-logout:hover {
    background: #c0392b;
}

/* Navigation Dashboard */
.dashboard-nav {
    background: var(--white);
    border-bottom: 2px solid var(--border-color);
    padding: 0 2rem;
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
}

.nav-btn {
    padding: 1rem 1.5rem;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--dark-text);
    border-bottom: 3px solid transparent;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.nav-btn:hover,
.nav-btn.active {
    color: var(--secondary-color);
    border-bottom-color: var(--secondary-color);
    background: var(--light-bg);
}

/* Main Content */
.dashboard-main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.dashboard-section {
    display: none;
}

.dashboard-section.active {
    display: block;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.section-header h2 {
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Devoirs */
.devoirs-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

.devoir-card {
    background: var(--white);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.devoir-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.devoir-card.urgent {
    border-left: 4px solid var(--warning-color);
}

.devoir-card.retard {
    border-left: 4px solid var(--danger-color);
}

.devoir-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.devoir-header h3 {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.devoir-matiere {
    background: var(--secondary-color);
    color: var(--white);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.devoir-description {
    color: #666;
    margin-bottom: 1rem;
}

.devoir-info {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.9rem;
    color: #666;
}

.devoir-info span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.devoir-actions {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.badge {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.badge-danger {
    background: #fee;
    color: var(--danger-color);
}

.badge-warning {
    background: #fff8e1;
    color: var(--warning-color);
}

.badge-info {
    background: #e3f2fd;
    color: var(--secondary-color);
}

/* Classes */
.classes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.class-card {
    background: var(--white);
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.class-card:hover {
    transform: translateY(-5px);
}

.class-icon {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.class-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Table Élèves */
.eleves-table-container {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.eleves-table {
    width: 100%;
    border-collapse: collapse;
}

.eleves-table thead {
    background: var(--primary-color);
    color: var(--white);
}

.eleves-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

.eleves-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.eleves-table tbody tr:hover {
    background: var(--light-bg);
}

/* Notes */
.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.note-card {
    background: var(--white);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

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

.note-moyenne {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--secondary-color);
}

.note-details {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.note-item {
    display: flex;
    justify-content: space-between;
    padding: 0.8rem;
    background: var(--light-bg);
    border-radius: 8px;
}

.note-value {
    font-weight: bold;
    color: var(--primary-color);
}

/* Emploi du temps */
.emploi-container {
    background: var(--white);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: var(--shadow);
    overflow-x: auto;
}

.emploi-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.emploi-table th,
.emploi-table td {
    padding: 1rem;
    text-align: center;
    border: 1px solid var(--border-color);
}

.emploi-table th {
    background: var(--primary-color);
    color: var(--white);
    font-weight: 600;
}

.emploi-table .heure {
    background: var(--light-bg);
    font-weight: 600;
}

.emploi-table td {
    background: var(--white);
}

/* Profil */
.profil-card {
    background: var(--white);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: var(--shadow);
    max-width: 600px;
}

.profil-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
}

.profil-avatar {
    font-size: 5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.profil-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.profil-item {
    display: flex;
    justify-content: space-between;
    padding: 1rem;
    background: var(--light-bg);
    border-radius: 8px;
}

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

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: 15px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 2px solid var(--border-color);
}

.modal-header h3 {
    color: var(--primary-color);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark-text);
    transition: color 0.3s;
}

.modal-close:hover {
    color: var(--danger-color);
}

.modal-content form {
    padding: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: #666;
    font-size: 1.1rem;
}

/* Notifications */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--success-color);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    z-index: 3000;
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.3s;
}

.notification.show {
    opacity: 1;
    transform: translateX(0);
}

/* Filtres */
.filters {
    display: flex;
    gap: 1rem;
}

.filters select {
    padding: 0.6rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
}

/* Styles pour Admin et nouvelles fonctionnalités */
.users-table-container {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.users-table {
    width: 100%;
    border-collapse: collapse;
}

.users-table thead {
    background: var(--primary-color);
    color: var(--white);
}

.users-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

.users-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.users-table tbody tr:hover {
    background: var(--light-bg);
}

.class-admin-card {
    background: var(--white);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.class-admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.class-count {
    background: var(--secondary-color);
    color: var(--white);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.class-eleves-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.class-eleve-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem;
    background: var(--light-bg);
    border-radius: 8px;
}

.classes-admin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.note-card-prof {
    background: var(--white);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.note-card-header {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.note-card-details {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.note-item-prof {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--light-bg);
    border-radius: 8px;
}

.note-info {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    flex: 1;
}

.eleves-classe-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

.classe-eleves-card {
    background: var(--white);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.classe-eleves-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.eleves-list-classe {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.eleve-item-classe {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem;
    background: var(--light-bg);
    border-radius: 8px;
}

/* Responsive */
@media (max-width: 768px) {
    .dashboard-nav {
        padding: 0 1rem;
    }
    
    .nav-btn {
        padding: 0.8rem 1rem;
        font-size: 0.9rem;
    }
    
    .dashboard-main {
        padding: 1rem;
    }
    
    .devoirs-list,
    .classes-grid,
    .notes-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    
    .eleves-table-container {
        overflow-x: auto;
    }
}






    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --dark-text: #333;
    --border-color: #ddd;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--dark-text);
    line-height: 1.6;
    background: var(--light-bg);
}

/* Page de connexion */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 2rem;
}

.login-container {
    width: 100%;
    max-width: 450px;
}

.login-box {
    background: var(--white);
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    overflow: hidden;
}

.login-header {
    background: var(--primary-color);
    color: var(--white);
    padding: 2rem;
    text-align: center;
}

.login-header i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.login-header h1 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.login-header p {
    opacity: 0.9;
}

.login-tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
}

.tab-btn {
    flex: 1;
    padding: 1rem;
    border: none;
    background: var(--white);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--dark-text);
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
}

.tab-btn.active {
    color: var(--secondary-color);
    border-bottom-color: var(--secondary-color);
    background: var(--light-bg);
}

.login-form {
    display: none;
    padding: 2rem;
}

.login-form.active {
    display: block;
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group label i {
    margin-right: 0.5rem;
    color: var(--secondary-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

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

.btn {
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--secondary-color);
    color: var(--white);
    width: 100%;
}

.btn-primary:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: var(--white);
    color: var(--secondary-color);
    border: 2px solid var(--secondary-color);
}

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

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.9rem;
}

.demo-credentials {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--light-bg);
    border-radius: 8px;
    text-align: center;
    font-size: 0.9rem;
    color: #666;
}

.login-footer {
    padding: 1rem;
    text-align: center;
    color: #666;
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
}

/* Dashboard Header */
.dashboard-header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.logo i {
    font-size: 2rem;
    color: var(--secondary-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-logout {
    padding: 0.6rem 1.2rem;
    background: var(--danger-color);
    color: var(--white);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.3s;
}

.btn-logout:hover {
    background: #c0392b;
}

/* Navigation Dashboard */
.dashboard-nav {
    background: var(--white);
    border-bottom: 2px solid var(--border-color);
    padding: 0 2rem;
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
}

.nav-btn {
    padding: 1rem 1.5rem;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--dark-text);
    border-bottom: 3px solid transparent;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.nav-btn:hover,
.nav-btn.active {
    color: var(--secondary-color);
    border-bottom-color: var(--secondary-color);
    background: var(--light-bg);
}

/* Main Content */
.dashboard-main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.dashboard-section {
    display: none;
}

.dashboard-section.active {
    display: block;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.section-header h2 {
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Devoirs */
.devoirs-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

.devoir-card {
    background: var(--white);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.devoir-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.devoir-card.urgent {
    border-left: 4px solid var(--warning-color);
}

.devoir-card.retard {
    border-left: 4px solid var(--danger-color);
}

.devoir-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.devoir-header h3 {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.devoir-matiere {
    background: var(--secondary-color);
    color: var(--white);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.devoir-description {
    color: #666;
    margin-bottom: 1rem;
}

.devoir-info {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.9rem;
    color: #666;
}

.devoir-info span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.devoir-actions {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.badge {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.badge-danger {
    background: #fee;
    color: var(--danger-color);
}

.badge-warning {
    background: #fff8e1;
    color: var(--warning-color);
}

.badge-info {
    background: #e3f2fd;
    color: var(--secondary-color);
}

/* Classes */
.classes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.class-card {
    background: var(--white);
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.class-card:hover {
    transform: translateY(-5px);
}

.class-icon {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.class-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Table Élèves */
.eleves-table-container {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.eleves-table {
    width: 100%;
    border-collapse: collapse;
}

.eleves-table thead {
    background: var(--primary-color);
    color: var(--white);
}

.eleves-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

.eleves-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.eleves-table tbody tr:hover {
    background: var(--light-bg);
}

/* Notes */
.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.note-card {
    background: var(--white);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

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

.note-moyenne {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--secondary-color);
}

.note-details {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.note-item {
    display: flex;
    justify-content: space-between;
    padding: 0.8rem;
    background: var(--light-bg);
    border-radius: 8px;
}

.note-value {
    font-weight: bold;
    color: var(--primary-color);
}

/* Emploi du temps */
.emploi-container {
    background: var(--white);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: var(--shadow);
    overflow-x: auto;
}

.emploi-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.emploi-table th,
.emploi-table td {
    padding: 1rem;
    text-align: center;
    border: 1px solid var(--border-color);
}

.emploi-table th {
    background: var(--primary-color);
    color: var(--white);
    font-weight: 600;
}

.emploi-table .heure {
    background: var(--light-bg);
    font-weight: 600;
}

.emploi-table td {
    background: var(--white);
}

/* Profil */
.profil-card {
    background: var(--white);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: var(--shadow);
    max-width: 600px;
}

.profil-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
}

.profil-avatar {
    font-size: 5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.profil-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.profil-item {
    display: flex;
    justify-content: space-between;
    padding: 1rem;
    background: var(--light-bg);
    border-radius: 8px;
}

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

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: 15px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 2px solid var(--border-color);
}

.modal-header h3 {
    color: var(--primary-color);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark-text);
    transition: color 0.3s;
}

.modal-close:hover {
    color: var(--danger-color);
}

.modal-content form {
    padding: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: #666;
    font-size: 1.1rem;
}

/* Notifications */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--success-color);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    z-index: 3000;
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.3s;
}

.notification.show {
    opacity: 1;
    transform: translateX(0);
}

/* Filtres */
.filters {
    display: flex;
    gap: 1rem;
}

.filters select {
    padding: 0.6rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
}

/* Styles pour Admin et nouvelles fonctionnalités */
.users-table-container {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.users-table {
    width: 100%;
    border-collapse: collapse;
}

.users-table thead {
    background: var(--primary-color);
    color: var(--white);
}

.users-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

.users-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.users-table tbody tr:hover {
    background: var(--light-bg);
}

.class-admin-card {
    background: var(--white);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.class-admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.class-count {
    background: var(--secondary-color);
    color: var(--white);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.class-eleves-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.class-eleve-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem;
    background: var(--light-bg);
    border-radius: 8px;
}

.classes-admin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.note-card-prof {
    background: var(--white);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.note-card-header {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.note-card-details {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.note-item-prof {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--light-bg);
    border-radius: 8px;
}

.note-info {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    flex: 1;
}

.eleves-classe-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

.classe-eleves-card {
    background: var(--white);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.classe-eleves-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.eleves-list-classe {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.eleve-item-classe {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem;
    background: var(--light-bg);
    border-radius: 8px;
}

/* Responsive */
@media (max-width: 768px) {
    .dashboard-nav {
        padding: 0 1rem;
    }
    
    .nav-btn {
        padding: 0.8rem 1rem;
        font-size: 0.9rem;
    }
    
    .dashboard-main {
        padding: 1rem;
    }
    
    .devoirs-list,
    .classes-grid,
    .notes-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    
    .eleves-table-container {
        overflow-x: auto;
    }
}




/* Styles supplémentaires pour le dashboard élève */
.moyenne-card {
    background: var(--white);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: var(--shadow);
    text-align: center;
    margin-bottom: 2rem;
}

.moyenne-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.moyenne-value {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
}

.moyenne-matiere {
    color: var(--secondary-color);
    font-weight: 500;
}

.note-card-eleve {
    background: var(--white);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

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

.note-card-header h3 {
    color: var(--primary-color);
    margin: 0;
}

.note-item-eleve {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    margin: 0.5rem 0;
    background: var(--light-bg);
    border-radius: 5px;
}

.emploi-temps-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.emploi-temps-table thead {
    background: var(--primary-color);
    color: var(--white);
}

.emploi-temps-table th {
    padding: 1rem;
    text-align: center;
    font-weight: 600;
}

.emploi-temps-table td {
    padding: 0.75rem;
    text-align: center;
    border: 1px solid var(--border-color);
}

.emploi-temps-table .heure-cell {
    background: var(--light-bg);
    font-weight: 600;
    color: var(--primary-color);
}

.emploi-temps-table .cours-cell {
    min-height: 50px;
}

.emploi-temps-editor-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
}

.emploi-temps-editor-table thead {
    background: var(--primary-color);
    color: var(--white);
}

.emploi-temps-editor-table th {
    padding: 1rem;
    text-align: center;
    font-weight: 600;
}

.emploi-temps-editor-table td {
    padding: 0.5rem;
    text-align: center;
    border: 1px solid var(--border-color);
}

.emploi-temps-editor-table .heure-cell {
    background: var(--light-bg);
    font-weight: 600;
    color: var(--primary-color);
}

.emploi-temps-editor-table .cours-cell-edit input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    text-align: center;
}

.emploi-temps-display {
    background: var(--white);
    border-radius: 10px;
    padding: 1rem;
    box-shadow: var(--shadow);
    overflow-x: auto;
}