/* ===== RESET & VARIABLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, system-ui, sans-serif;
}
:root {
    --bleu-fonce: #0b1e33;
    --bleu-clair: #2a7de1;
    --bleu-tres-clair: #e6f0ff;
    --blanc: #ffffff;
    --gris-clair: #f0f4fa;
    --gris-texte: #3a4a5a;
    --vert: #28a745;
    --orange: #ffc107;
    --rouge: #dc3545;
}
body {
    background: var(--gris-clair);
    color: #1a2a3a;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
a {
    text-decoration: none;
    color: inherit;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== HEADER ===== */
.header {
    background: linear-gradient(135deg, var(--bleu-fonce) 0%, #1a3a5c 100%);
    color: var(--blanc);
    padding: 20px 0 10px;
    text-align: center;
    flex-shrink: 0;
}
.header .logo {
    font-size: 2.8rem;
    font-weight: 700;
    letter-spacing: 2px;
}
.header .logo span {
    color: var(--bleu-clair);
}
.header .slogan {
    font-size: 1.2rem;
    font-weight: 300;
    opacity: 0.9;
    margin-top: 4px;
}
.header .tagline {
    font-size: 0.95rem;
    opacity: 0.7;
    border-top: 1px solid rgba(255,255,255,0.15);
    padding-top: 10px;
    margin-top: 8px;
    display: inline-block;
}

/* ===== NAVIGATION ===== */
.navbar {
    background: var(--bleu-fonce);
    box-shadow: 0 4px 20px rgba(0,0,0,0.25);
    flex-shrink: 0;
    position: sticky;
    top: 0;
    z-index: 100;
}
.navbar .container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 4px;
    padding: 6px 10px;
}
.nav-btn {
    background: transparent;
    border: none;
    color: rgba(255,255,255,0.7);
    padding: 12px 22px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: 30px;
    transition: 0.25s;
    letter-spacing: 0.3px;
}
.nav-btn:hover {
    background: rgba(255,255,255,0.08);
    color: var(--blanc);
}
.nav-btn.active {
    background: var(--bleu-clair);
    color: var(--blanc);
    box-shadow: 0 4px 12px rgba(42,125,225,0.3);
}

/* ===== CONTENU PRINCIPAL ===== */
.main-content {
    flex: 1;
    padding: 30px 0 20px;
    background: var(--gris-clair);
}
.page-section {
    display: none;
    animation: fadeIn 0.3s ease;
}
.page-section.active {
    display: block;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== STYLES COMMUNS ===== */
.section-title {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--bleu-fonce);
    margin-bottom: 0.5rem;
    position: relative;
    display: inline-block;
}
.section-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 60px;
    height: 4px;
    background: var(--bleu-clair);
    border-radius: 4px;
}
.text-center {
    text-align: center;
}
.text-center .section-title::after {
    left: 50%;
    transform: translateX(-50%);
}
.section-subtitle {
    color: #4a5a6a;
    font-size: 1.1rem;
    margin: 1.5rem 0 2.5rem;
}
.btn-demande {
    display: inline-block;
    background: var(--bleu-clair);
    color: var(--blanc);
    padding: 8px 20px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.85rem;
    border: none;
    cursor: pointer;
    transition: 0.3s;
    margin-top: 12px;
}
.btn-demande:hover {
    background: var(--bleu-fonce);
    transform: scale(1.05);
}

/* ===== SLIDER ===== */
.swiper {
    width: 100%;
    height: 500px;
    border-radius: 24px;
    overflow: hidden;
    margin-bottom: 50px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
}
.swiper-slide {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--blanc);
    padding: 40px;
    background-size: cover;
    background-position: center;
}
.swiper-slide::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(11, 30, 51, 0.55);
    z-index: 1;
}
.swiper-slide .slide-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
}
.swiper-slide .slide-content h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 12px;
}
.swiper-slide .slide-content p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 24px;
}
.swiper-slide .slide-content .btn-slide {
    display: inline-block;
    background: var(--bleu-clair);
    color: var(--blanc);
    padding: 14px 40px;
    border-radius: 40px;
    font-weight: 600;
    font-size: 1rem;
    transition: 0.3s;
    border: none;
    cursor: pointer;
}
.swiper-slide .slide-content .btn-slide:hover {
    background: var(--blanc);
    color: var(--bleu-fonce);
    transform: scale(1.05);
}
.slide-agriculture { background-image: url('agri.jpg'); }
.slide-cartographie { background-image: url('carto.jpg'); }
.slide-it { background-image: url('dev.jpg'); }
.slide-drones { background-image: url('drone.jpg'); }
/* ===== Nouvelles slides du carrousel accueil ===== */

.slide-mine {
    background-image: linear-gradient(rgba(10, 20, 35, 0.55), rgba(10, 20, 35, 0.55)), url('mine.jpg');
    background-size: cover;
    background-position: center;
}

.slide-environnement {
    background-image: linear-gradient(rgba(10, 20, 35, 0.55), rgba(10, 20, 35, 0.55)), url('env.jpg');
    background-size: cover;
    background-position: center;
}

.slide-urbanisme {
    background-image: linear-gradient(rgba(10, 20, 35, 0.55), rgba(10, 20, 35, 0.55)), url('urba.jpg');
    background-size: cover;
    background-position: center;
}

.slide-hydrologie {
    background-image: linear-gradient(rgba(10, 20, 35, 0.55), rgba(10, 20, 35, 0.55)), url('hydro.jpg');
    background-size: cover;
    background-position: center;
}

/* ===== STATS ===== */
.accueil-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin: 40px 0;
}
.stat-item {
    background: var(--blanc);
    border-radius: 16px;
    padding: 24px 12px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}
.stat-item .number {
    font-size: 2.6rem;
    font-weight: 700;
    color: var(--bleu-clair);
}
.stat-item .label {
    font-size: 0.95rem;
    color: var(--gris-texte);
    margin-top: 4px;
}

/* ===== SERVICES ACCUEIL ===== */
.services-grid-home {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 30px;
    margin-top: 20px;
}
.service-card-home {
    background: var(--blanc);
    border-radius: 20px;
    padding: 30px 24px;
    box-shadow: 0 6px 24px rgba(0,0,0,0.04);
    transition: 0.3s;
    border-left: 5px solid var(--bleu-clair);
    position: relative;
}
.service-card-home:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 36px rgba(42,125,225,0.10);
}
.service-card-home .icon {
    font-size: 2.6rem;
    color: var(--bleu-clair);
    margin-bottom: 14px;
}
.service-card-home h3 {
    font-size: 1.2rem;
    color: var(--bleu-fonce);
    margin-bottom: 10px;
}
.service-card-home p {
    color: var(--gris-texte);
    line-height: 1.6;
    font-size: 0.95rem;
}
.service-card-home .badge {
    display: inline-block;
    margin-top: 14px;
    background: var(--bleu-tres-clair);
    color: var(--bleu-clair);
    padding: 4px 16px;
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

/* ===== ÉTUDIANTS ===== */
.etudiants-section {
    background: var(--bleu-fonce);
    color: var(--blanc);
    border-radius: 24px;
    padding: 50px 40px;
    margin: 50px 0;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
}
.etudiants-section h3 {
    font-size: 2.2rem;
    margin-bottom: 16px;
}
.etudiants-section p {
    font-size: 1.15rem;
    line-height: 1.7;
    opacity: 0.9;
    max-width: 750px;
    margin: 0 auto 28px;
}

/* ===== MINI À PROPOS ===== */
.apropos-mini {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
    background: var(--blanc);
    border-radius: 24px;
    padding: 40px;
    margin: 50px 0;
    box-shadow: 0 6px 30px rgba(0,0,0,0.04);
}
.apropos-mini-text {
    flex: 2 1 300px;
}
.apropos-mini-text p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--gris-texte);
    margin-bottom: 1rem;
}
.apropos-mini-image {
    flex: 1 1 200px;
    background: var(--bleu-tres-clair);
    border-radius: 24px;
    padding: 40px 20px;
    text-align: center;
    font-size: 5rem;
    color: var(--bleu-clair);
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===== APPELS À L'ACTION ===== */
.cta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin: 40px 0;
}
.cta-card {
    background: var(--bleu-fonce);
    color: var(--blanc);
    border-radius: 24px;
    padding: 40px 30px;
    text-align: center;
    transition: 0.3s;
}
.cta-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 36px rgba(11,30,51,0.2);
}
.cta-card h3 {
    font-size: 1.6rem;
    margin-bottom: 12px;
}
.cta-card p {
    opacity: 0.8;
    margin-bottom: 24px;
    line-height: 1.6;
}
.cta-card .btn-cta {
    display: inline-block;
    background: var(--bleu-clair);
    color: var(--blanc);
    padding: 12px 36px;
    border-radius: 40px;
    font-weight: 600;
    transition: 0.3s;
    border: none;
    cursor: pointer;
}
.cta-card .btn-cta:hover {
    background: var(--blanc);
    color: var(--bleu-fonce);
}

/* ===== INITIATIVES ===== */
.initiatives-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 30px;
    margin-top: 20px;
}
.initiative-card {
    background: var(--blanc);
    border-radius: 20px;
    padding: 28px 22px;
    box-shadow: 0 6px 24px rgba(0,0,0,0.04);
    transition: 0.3s;
    text-align: center;
}
.initiative-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 36px rgba(42,125,225,0.10);
}
.initiative-card .icon {
    font-size: 2.8rem;
    color: var(--bleu-clair);
    margin-bottom: 12px;
}
.initiative-card h4 {
    font-size: 1.2rem;
    color: var(--bleu-fonce);
    margin-bottom: 8px;
}
.initiative-card p {
    color: var(--gris-texte);
    font-size: 0.95rem;
    line-height: 1.6;
}
.initiative-card .btn-init {
    display: inline-block;
    margin-top: 16px;
    color: var(--bleu-clair);
    font-weight: 600;
}
.initiative-card .btn-init:hover {
    text-decoration: underline;
}

/* ===== À PROPOS (page complète) ===== */
.apropos-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
    background: var(--blanc);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 6px 30px rgba(0,0,0,0.04);
}
.apropos-text {
    flex: 2 1 300px;
}
.apropos-text p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--gris-texte);
    margin-bottom: 1rem;
}
.apropos-image {
    flex: 1 1 200px;
    background: var(--bleu-tres-clair);
    border-radius: 24px;
    padding: 40px 20px;
    text-align: center;
    font-size: 5rem;
    color: var(--bleu-clair);
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.apropos-valeurs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 20px;
    margin-top: 30px;
}
.valeur-item {
    background: var(--blanc);
    padding: 20px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0,0,0,0.03);
}
.valeur-item i {
    font-size: 2.2rem;
    color: var(--bleu-clair);
    margin-bottom: 8px;
}
.valeur-item h4 {
    color: var(--bleu-fonce);
}
.partenaires {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 2px solid #eaf0f8;
}
.partenaires h3 {
    font-size: 1.8rem;
    color: var(--bleu-fonce);
    text-align: center;
    margin-bottom: 30px;
}
.partenaires-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px 50px;
}
.partenaire-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    color: var(--bleu-fonce);
    transition: transform 0.3s;
    cursor: default;
}
.partenaire-item:hover {
    transform: scale(1.08);
}
.partenaire-item i {
    font-size: 3rem;
    color: var(--bleu-clair);
    transition: color 0.3s;
}
.partenaire-item:hover i {
    color: var(--bleu-fonce);
}

/* ===== DONNÉES ===== */
.donnees-filtres {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: center;
    background: var(--blanc);
    padding: 24px 30px;
    border-radius: 20px;
    margin-bottom: 30px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}
.donnees-filtres .search-box {
    flex: 2 1 240px;
    display: flex;
    align-items: center;
    background: var(--gris-clair);
    border-radius: 40px;
    padding: 0 18px;
    border: 2px solid transparent;
    transition: 0.3s;
}
.donnees-filtres .search-box:focus-within {
    border-color: var(--bleu-clair);
    background: var(--blanc);
}
.donnees-filtres .search-box i {
    color: var(--bleu-clair);
    margin-right: 12px;
}
.donnees-filtres .search-box input {
    border: none;
    background: transparent;
    padding: 14px 0;
    width: 100%;
    font-size: 1rem;
    outline: none;
    color: var(--bleu-fonce);
}
.donnees-filtres .themes-filtres {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    flex: 3 1 300px;
}
.donnees-filtres .theme-btn {
    background: var(--gris-clair);
    border: none;
    padding: 8px 20px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--gris-texte);
    cursor: pointer;
    transition: 0.25s;
}
.donnees-filtres .theme-btn:hover {
    background: var(--bleu-tres-clair);
    color: var(--bleu-clair);
}
.donnees-filtres .theme-btn.active {
    background: var(--bleu-clair);
    color: var(--blanc);
}
.donnees-filtres .reset-btn {
    background: transparent;
    border: 2px solid var(--gris-texte);
    padding: 8px 20px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--gris-texte);
    cursor: pointer;
    transition: 0.25s;
}
.donnees-filtres .reset-btn:hover {
    background: var(--bleu-fonce);
    border-color: var(--bleu-fonce);
    color: var(--blanc);
}
.donnees-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}
.donnees-card {
    background: var(--blanc);
    border-radius: 20px;
    padding: 24px 22px;
    box-shadow: 0 6px 24px rgba(0,0,0,0.04);
    transition: 0.3s;
    border-top: 5px solid var(--bleu-clair);
}
.donnees-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 36px rgba(42,125,225,0.10);
}
.donnees-card .theme-tag {
    display: inline-block;
    background: var(--bleu-tres-clair);
    color: var(--bleu-clair);
    padding: 2px 14px;
    border-radius: 30px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 10px;
}
.donnees-card h4 {
    font-size: 1.2rem;
    color: var(--bleu-fonce);
    margin-bottom: 6px;
}
.donnees-card p {
    color: var(--gris-texte);
    font-size: 0.95rem;
    line-height: 1.6;
}
.donnees-card .meta-data {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 14px;
    font-size: 0.85rem;
    color: #5a6a7a;
    border-top: 1px solid #eef2f8;
    padding-top: 14px;
}
.donnees-card .meta-data i {
    margin-right: 4px;
    color: var(--bleu-clair);
}
.donnees-card .btn-download {
    display: inline-block;
    margin-top: 14px;
    background: var(--bleu-clair);
    color: var(--blanc);
    padding: 6px 20px;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: 0.3s;
}
.donnees-card .btn-download:hover {
    background: var(--bleu-fonce);
}
.donnees-msg {
    text-align: center;
    padding: 40px 0;
    color: var(--gris-texte);
    font-size: 1.1rem;
    display: none;
}
.donnees-msg.visible {
    display: block;
}

/* ===== SERVICES, PROJETS, FORMATIONS (cartes cliquables) ===== */
.grid-cartes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 20px;
}
.carte {
    background: var(--blanc);
    border-radius: 20px;
    padding: 28px 22px;
    box-shadow: 0 6px 24px rgba(0,0,0,0.04);
    transition: 0.3s;
    cursor: pointer;
    border-left: 5px solid var(--bleu-clair);
    position: relative;
}
.carte:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 36px rgba(42,125,225,0.10);
}
.carte .icon {
    font-size: 2.4rem;
    color: var(--bleu-clair);
    margin-bottom: 12px;
}
.carte h4 {
    font-size: 1.25rem;
    color: var(--bleu-fonce);
    margin-bottom: 8px;
}
.carte p {
    color: var(--gris-texte);
    line-height: 1.6;
    font-size: 0.95rem;
}
.carte .badge {
    display: inline-block;
    margin-top: 14px;
    background: var(--bleu-tres-clair);
    color: var(--bleu-clair);
    padding: 4px 16px;
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}
.carte .status {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}
.status.termine {
    background: #d4edda;
    color: #155724;
}
.status.en-cours {
    background: #fff3cd;
    color: #856404;
}

/* ===== ADMIN ===== */
.admin-login {
    max-width: 400px;
    margin: 40px auto;
    background: var(--blanc);
    padding: 40px 30px;
    border-radius: 24px;
    box-shadow: 0 6px 30px rgba(0,0,0,0.08);
    text-align: center;
}
.admin-login h3 {
    color: var(--bleu-fonce);
    margin-bottom: 20px;
}
.admin-login input {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    margin-bottom: 16px;
    background: var(--gris-clair);
}
.admin-login input:focus {
    border-color: var(--bleu-clair);
    outline: none;
}
.admin-login button {
    background: var(--bleu-clair);
    color: var(--blanc);
    border: none;
    padding: 12px 40px;
    border-radius: 40px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: 0.3s;
}
.admin-login button:hover {
    background: var(--bleu-fonce);
}
.admin-error {
    color: var(--rouge);
    font-size: 0.9rem;
    margin-top: 10px;
    display: none;
}
.admin-panel {
    display: none;
}
.admin-panel.visible {
    display: block;
}
.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}
.admin-stat-card {
    background: var(--blanc);
    border-radius: 16px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}
.admin-stat-card .number {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--bleu-clair);
}
.admin-stat-card .label {
    font-size: 0.9rem;
    color: var(--gris-texte);
}
.admin-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    background: var(--blanc);
    padding: 16px 24px;
    border-radius: 16px;
    margin-bottom: 24px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}
.admin-filters select,
.admin-filters input {
    padding: 8px 14px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    background: var(--gris-clair);
    font-size: 0.9rem;
}
.admin-filters select:focus,
.admin-filters input:focus {
    border-color: var(--bleu-clair);
    outline: none;
}
.admin-filters .btn-export {
    background: var(--vert);
    color: var(--blanc);
    border: none;
    padding: 8px 20px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
    margin-left: auto;
}
.admin-filters .btn-export:hover {
    transform: scale(1.05);
}
.admin-table-wrapper {
    overflow-x: auto;
    background: var(--blanc);
    border-radius: 20px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.04);
    padding: 4px;
}
.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}
.admin-table th {
    background: var(--bleu-fonce);
    color: var(--blanc);
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
}
.admin-table td {
    padding: 12px 16px;
    border-bottom: 1px solid #eef2f8;
    vertical-align: middle;
}
.admin-table tr:hover td {
    background: #f8faff;
}
.admin-table .statut {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 700;
}
.statut-en-attente {
    background: #fff3cd;
    color: #856404;
}
.statut-traite {
    background: #d4edda;
    color: #155724;
}
.statut-repondu {
    background: #cce5ff;
    color: #004085;
}
.admin-table .btn-action {
    background: none;
    border: none;
    color: var(--bleu-clair);
    cursor: pointer;
    font-size: 1rem;
    margin: 0 4px;
    transition: 0.2s;
}
.admin-table .btn-action:hover {
    color: var(--bleu-fonce);
    transform: scale(1.1);
}
.admin-table .btn-action.delete {
    color: var(--rouge);
}
.admin-table .btn-action.delete:hover {
    color: #a71d2a;
}

/* ===== MODALES ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}
.modal-overlay.open {
    display: flex;
}
.modal-box {
    background: var(--blanc);
    max-width: 600px;
    width: 90%;
    border-radius: 24px;
    padding: 40px 30px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.3);
    position: relative;
    max-height: 80vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
}
@keyframes slideUp {
    from { transform: translateY(40px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}
.modal-box .close-modal {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 2rem;
    background: none;
    border: none;
    cursor: pointer;
    color: #888;
    transition: 0.2s;
}
.modal-box .close-modal:hover {
    color: #222;
    transform: rotate(90deg);
}
.modal-box .modal-icon {
    font-size: 3.2rem;
    color: var(--bleu-clair);
    margin-bottom: 12px;
}
.modal-box h2 {
    color: var(--bleu-fonce);
    margin-bottom: 12px;
}
.modal-box .modal-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.95rem;
    color: var(--gris-texte);
    margin-bottom: 16px;
}
.modal-box .modal-meta i {
    margin-right: 6px;
    color: var(--bleu-clair);
}
.modal-box p {
    line-height: 1.7;
    color: var(--gris-texte);
}
.modal-box .btn-modal {
    display: inline-block;
    margin-top: 20px;
    background: var(--bleu-clair);
    color: var(--blanc);
    padding: 10px 32px;
    border-radius: 40px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: 0.3s;
}
.modal-box .btn-modal:hover {
    background: var(--bleu-fonce);
}
.admin-detail-modal .modal-box {
    max-width: 700px;
}
.admin-detail-modal .detail-row {
    display: flex;
    padding: 8px 0;
    border-bottom: 1px solid #eef2f8;
}
.admin-detail-modal .detail-row .label {
    font-weight: 600;
    width: 140px;
    flex-shrink: 0;
    color: var(--bleu-fonce);
}
.admin-detail-modal .detail-row .value {
    flex: 1;
    color: var(--gris-texte);
}
.admin-detail-modal .note-area {
    width: 100%;
    padding: 12px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    margin-top: 12px;
    resize: vertical;
    min-height: 80px;
    font-family: inherit;
}
.admin-detail-modal .note-area:focus {
    border-color: var(--bleu-clair);
    outline: none;
}
.admin-detail-modal .btn-save-note {
    background: var(--bleu-clair);
    color: var(--blanc);
    border: none;
    padding: 8px 24px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 12px;
    transition: 0.3s;
}
.admin-detail-modal .btn-save-note:hover {
    background: var(--bleu-fonce);
}

/* ===== CONTACT ===== */
#contact .contact-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
    background: var(--blanc);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 6px 30px rgba(0,0,0,0.04);
}
.contact-info {
    flex: 1 1 260px;
}
.contact-info p {
    margin: 16px 0;
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    gap: 14px;
}
.contact-info i {
    font-size: 1.4rem;
    color: var(--bleu-clair);
    width: 30px;
    text-align: center;
}
.contact-form {
    flex: 2 1 360px;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    margin-bottom: 16px;
    transition: 0.3s;
    background: var(--gris-clair);
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    border-color: var(--bleu-clair);
    outline: none;
    background: var(--blanc);
}
.contact-form textarea {
    min-height: 140px;
    resize: vertical;
}
.contact-form button {
    background: var(--bleu-clair);
    color: var(--blanc);
    border: none;
    padding: 14px 40px;
    border-radius: 40px;
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    transition: 0.3s;
}
.contact-form button:hover {
    background: #1a5fb0;
    transform: scale(1.02);
}
.contact-form .form-success {
    display: none;
    background: #d4edda;
    color: #155724;
    padding: 16px;
    border-radius: 12px;
    margin-top: 16px;
}
.contact-form .form-success.visible {
    display: block;
}

/* ===== ACTUALITÉS ===== */
.actu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}
.actu-card {
    background: var(--blanc);
    border-radius: 20px;
    padding: 24px;
    box-shadow: 0 6px 24px rgba(0,0,0,0.04);
    border-bottom: 4px solid transparent;
    transition: 0.3s;
}
.actu-card:hover {
    border-bottom-color: var(--bleu-clair);
    background: #f5f9ff;
}
.actu-card .date {
    font-size: 0.8rem;
    color: var(--bleu-clair);
    font-weight: 600;
    text-transform: uppercase;
}
.actu-card h4 {
    font-size: 1.2rem;
    color: var(--bleu-fonce);
    margin: 8px 0 10px;
}
.actu-card p {
    color: var(--gris-texte);
    line-height: 1.6;
}

/* ===== FOOTER ===== */
.footer {
    background: #081420;
    color: rgba(255,255,255,0.7);
    padding: 30px 0 16px;
    border-top: 2px solid var(--bleu-clair);
    flex-shrink: 0;
    margin-top: auto;
}
.footer .container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 20px;
}
.footer-col h4 {
    color: var(--blanc);
    margin-bottom: 8px;
}
.footer-col p,
.footer-col a {
    font-size: 0.9rem;
    line-height: 1.8;
}
.footer-col a:hover {
    color: var(--bleu-clair);
}
.footer-bottom {
    text-align: center;
    padding-top: 20px;
    margin-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.06);
    font-size: 0.85rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .navbar .container {
        gap: 2px;
        padding: 6px 4px;
    }
    .nav-btn {
        padding: 8px 14px;
        font-size: 0.85rem;
    }
    .header .logo {
        font-size: 2rem;
    }
    .section-title {
        font-size: 1.8rem;
    }
    .swiper {
        height: 400px;
    }
    .swiper-slide .slide-content h2 {
        font-size: 2rem;
    }
    .swiper-slide .slide-content p {
        font-size: 1rem;
    }
    .apropos-content,
    .apropos-mini {
        padding: 24px;
    }
    .modal-box {
        padding: 28px 20px;
    }
    .donnees-filtres {
        flex-direction: column;
        align-items: stretch;
        padding: 20px;
    }
    .donnees-filtres .themes-filtres {
        justify-content: center;
    }
    .etudiants-section {
        padding: 30px 20px;
    }
    .etudiants-section h3 {
        font-size: 1.6rem;
    }
    .admin-filters {
        flex-direction: column;
        align-items: stretch;
    }
    .admin-filters .btn-export {
        margin-left: 0;
    }
    .admin-table th,
    .admin-table td {
        padding: 8px 10px;
        font-size: 0.8rem;
    }
}
@media (max-width: 480px) {
    .nav-btn {
        padding: 6px 10px;
        font-size: 0.75rem;
    }
    .header .slogan {
        font-size: 1rem;
    }
    .swiper {
        height: 350px;
    }
    .swiper-slide .slide-content h2 {
        font-size: 1.6rem;
    }
}