/* ===================================
   CETI - Centre d'Excellence Technologique et Industriel
   Feuille de style principale
   =================================== */

/* Variables CSS */
:root {
    --primary-color: #1a365d;
    --secondary-color: #3182ce;
    --accent-color: #d4a017;
    --white: #ffffff;
    --text-color: #2d3748;
    --light-bg: #f7fafc;
    --gradient-hero: linear-gradient(135deg, #1a365d 0%, #2c5282 50%, #1a365d 100%);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

/* Reset et Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Open Sans', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===================================
   HEADER & NAVIGATION
   =================================== */
header {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 50px;
    width: auto;
}

.logo-text {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
    list-style: none;
}

.nav-menu a {
    font-weight: 500;
    color: var(--text-color);
    padding: 8px 0;
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--secondary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.lang-switch {
    font-weight: 500;
    color: var(--text-color);
    cursor: pointer;
}

.lang-switch:hover {
    color: var(--secondary-color);
}

/* Boutons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background: #b8890f;
    border-color: #b8890f;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

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

.btn-outline-white {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

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

.btn-gold {
    background: var(--accent-color);
    color: var(--primary-color);
    border-color: var(--accent-color);
}

.btn-gold:hover {
    background: #e8b420;
    transform: translateY(-2px);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    background: var(--gradient-hero);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 120px 20px 60px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="1" fill="%233182ce" opacity="0.3"/><circle cx="80" cy="30" r="1.5" fill="%23d4a017" opacity="0.4"/><circle cx="40" cy="70" r="1" fill="%233182ce" opacity="0.3"/><circle cx="90" cy="80" r="1" fill="%23d4a017" opacity="0.3"/></svg>');
    background-size: 200px;
    opacity: 0.5;
}

/* Circuit pattern overlay */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(49, 130, 206, 0.1));
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
}

.hero h1 {
    font-size: 3.5rem;
    color: var(--white);
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: 1.3rem;
    color: rgba(255,255,255,0.9);
    margin-bottom: 15px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(212, 160, 23, 0.2);
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 10px 25px;
    border-radius: 25px;
    font-weight: 600;
    margin-bottom: 30px;
}

.hero-badge i {
    font-size: 1.2rem;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

/* Statistics Cards */
.stats-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.stat-card {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 15px;
    padding: 25px 20px;
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-5px);
}

.stat-number {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--white);
}

.stat-number span {
    font-size: 1.5rem;
    color: var(--accent-color);
}

.stat-label {
    color: rgba(255,255,255,0.8);
    font-size: 0.95rem;
    margin-top: 5px;
}

/* ===================================
   SECTIONS COMMUNES
   =================================== */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--text-color);
    max-width: 700px;
    margin: 0 auto;
}

.section-badges {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--light-bg);
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--primary-color);
}

/* ===================================
   FILIÈRES (PROGRAMMES)
   =================================== */
.filieres-section {
    background: var(--light-bg);
}

.filieres-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 25px;
}

.filiere-card {
    background: var(--white);
    border-radius: 15px;
    padding: 25px 20px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 2px solid transparent;
}

.filiere-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary-color);
}

.filiere-card.featured {
    border-color: var(--accent-color);
}

.filiere-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-bg);
    border-radius: 50%;
    font-size: 2rem;
    color: var(--secondary-color);
}

.filiere-card.featured .filiere-icon {
    background: rgba(212, 160, 23, 0.1);
    color: var(--accent-color);
}

.filiere-card h3 {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.filiere-card p {
    font-size: 0.85rem;
    color: var(--text-color);
    margin-bottom: 15px;
    line-height: 1.5;
}

.filiere-card .btn-link {
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.filiere-card .btn-link:hover {
    color: var(--accent-color);
}

/* ===================================
   PAGE INVESTIR
   =================================== */
.invest-hero {
    background: var(--gradient-hero);
    padding: 120px 20px 80px;
    position: relative;
}

.invest-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.invest-info {
    color: var(--white);
}

.invest-info h1 {
    font-size: 3rem;
    margin-bottom: 15px;
}

.invest-info .subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 40px;
}

.roi-badge {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    background: linear-gradient(135deg, #d4a017, #f0c040);
    color: var(--primary-color);
    padding: 20px 30px;
    border-radius: 50%;
    margin-bottom: 30px;
    box-shadow: 0 5px 20px rgba(212, 160, 23, 0.4);
}

.roi-badge .percentage {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
}

.roi-badge .label {
    font-size: 0.9rem;
    font-weight: 600;
}

.invest-features {
    list-style: none;
    margin-bottom: 30px;
}

.invest-features li {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.invest-features li i {
    font-size: 1.5rem;
    color: var(--accent-color);
}

.price-badge {
    position: absolute;
    top: 120px;
    right: 10%;
    background: linear-gradient(135deg, #d4a017, #f0c040);
    color: var(--primary-color);
    padding: 20px 25px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.price-badge .amount {
    font-size: 2rem;
    font-weight: 700;
    display: block;
}

.price-badge .currency {
    font-size: 1rem;
}

.price-badge .euro {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Formulaire de souscription */
.subscription-form {
    background: var(--white);
    border-radius: 20px;
    padding: 35px;
    box-shadow: var(--shadow-lg);
}

.subscription-form h3 {
    color: var(--primary-color);
    margin-bottom: 25px;
    text-align: center;
    font-size: 1.3rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 15px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 5px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.1);
}

.phone-input {
    display: flex;
    gap: 10px;
}

.phone-input .country-code {
    width: 80px;
    flex-shrink: 0;
}

.actions-counter {
    display: flex;
    align-items: center;
    gap: 15px;
}

.counter-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--secondary-color);
    background: var(--white);
    color: var(--secondary-color);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
}

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

.counter-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    min-width: 50px;
    text-align: center;
}

.total-amount {
    text-align: right;
    font-size: 0.9rem;
    color: var(--text-color);
    margin-top: 5px;
}

.total-amount strong {
    color: var(--accent-color);
}

.btn-submit {
    width: 100%;
    padding: 15px;
    font-size: 1rem;
    margin-top: 20px;
}

.payment-methods {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
}

.payment-methods img {
    height: 25px;
    opacity: 0.7;
}

.secure-text {
    text-align: center;
    font-size: 0.8rem;
    color: #718096;
    margin-top: 10px;
}

/* ===================================
   FOOTER
   =================================== */
footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo-text {
    color: var(--white);
    margin-bottom: 15px;
}

.footer-brand p {
    opacity: 0.8;
    line-height: 1.7;
}

.footer-links h4 {
    color: var(--accent-color);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    opacity: 0.8;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent-color);
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    opacity: 0.8;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    opacity: 0.7;
    font-size: 0.9rem;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 1200px) {
    .filieres-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 992px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-md);
    }

    .nav-menu.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .stats-container {
        grid-template-columns: repeat(2, 1fr);
    }

    .filieres-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .invest-content {
        grid-template-columns: 1fr;
    }

    .price-badge {
        position: relative;
        top: 0;
        right: 0;
        display: inline-block;
        margin-bottom: 30px;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 100px 15px 50px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .stat-card {
        padding: 20px 15px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .filieres-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .section-title h2 {
        font-size: 1.8rem;
    }

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

    .subscription-form {
        padding: 25px 20px;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 1.7rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-buttons .btn {
        width: 100%;
        max-width: 280px;
    }

    .stats-container {
        grid-template-columns: 1fr 1fr;
    }

    .filieres-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
}

/* ===================================
   ANIMATIONS
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Animation classes - sans disparition */
.animate-ready {
    opacity: 1;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-visible {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease-out forwards;
}

.hero-badge {
    animation: pulse 2s infinite;
}

/* Infographic images */
.infographic-section {
    padding: 60px 0;
}

.infographic-image {
    max-width: 100%;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
    margin: 20px 0;
}

.infographic-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.infographic-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.infographic-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.infographic-card img {
    width: 100%;
    height: auto;
    display: block;
}

@media (max-width: 768px) {
    .infographic-grid {
        grid-template-columns: 1fr;
    }
}

/* Promoter Section */
.promoter-section {
    background: var(--light-bg);
    padding: 80px 0;
}

.promoter-grid {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 50px;
    align-items: center;
}

.promoter-image-card {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.promoter-avatar {
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
    border: 5px solid var(--accent-color);
}

.promoter-name {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.promoter-title {
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 15px;
}

.promoter-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(212, 160, 23, 0.1);
    color: var(--accent-color);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
}

.promoter-content h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.promoter-content p {
    margin-bottom: 15px;
    line-height: 1.8;
}

.promoter-stats {
    display: flex;
    gap: 30px;
    margin: 30px 0;
    flex-wrap: wrap;
}

.promoter-stat {
    text-align: center;
}

.promoter-stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.promoter-stat-label {
    font-size: 0.9rem;
    color: var(--text-color);
}

.promoter-quote {
    background: white;
    padding: 25px;
    border-radius: 15px;
    border-left: 4px solid var(--accent-color);
    font-style: italic;
    color: var(--text-color);
    margin-top: 20px;
}

.promoter-contact {
    display: flex;
    gap: 20px;
    margin-top: 25px;
    flex-wrap: wrap;
}

.promoter-contact a {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--secondary-color);
    font-weight: 500;
}

.promoter-contact a:hover {
    color: var(--accent-color);
}

@media (max-width: 992px) {
    .promoter-grid {
        grid-template-columns: 1fr;
    }
    
    .promoter-image-card {
        max-width: 400px;
        margin: 0 auto;
    }
}

/* Impact Section */
.impact-section {
    padding: 80px 0;
    background: white;
}

.impact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.impact-chart {
    background: var(--light-bg);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
}

.impact-chart-title {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.impact-chart-visual {
    position: relative;
    width: 250px;
    height: 250px;
    margin: 0 auto;
}

.chart-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.chart-center .amount {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.chart-center .label {
    font-size: 0.9rem;
    color: var(--text-color);
}

.impact-legend {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 30px;
    text-align: left;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: 5px;
}

.legend-color.equipment {
    background: var(--secondary-color);
}

.legend-color.construction {
    background: var(--accent-color);
}

.legend-color.operations {
    background: #90cdf4;
}

.impact-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.metric-card {
    background: var(--light-bg);
    border-radius: 15px;
    padding: 25px 20px;
    text-align: center;
    transition: var(--transition);
}

.metric-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.metric-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 1.5rem;
    color: white;
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.metric-label {
    font-size: 0.9rem;
    color: var(--text-color);
    margin-top: 5px;
}

@media (max-width: 992px) {
    .impact-grid {
        grid-template-columns: 1fr;
    }
    
    .impact-metrics {
        grid-template-columns: 1fr;
    }
}

/* Expansion Vision Section */
.expansion-section {
    background: var(--gradient-hero);
    padding: 80px 0;
    color: white;
}

.expansion-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.expansion-map {
    position: relative;
}

.expansion-map img {
    width: 100%;
    border-radius: 15px;
}

.expansion-content h2 {
    margin-bottom: 20px;
}

.expansion-phases {
    margin: 30px 0;
}

.phase-item {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    padding: 15px;
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
    border-left: 4px solid var(--accent-color);
}

.phase-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
    min-width: 80px;
}

.phase-details h4 {
    margin-bottom: 5px;
}

.phase-details p {
    font-size: 0.9rem;
    opacity: 0.9;
}

.expansion-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.expansion-stat {
    text-align: center;
    padding: 20px;
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
}

.expansion-stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
}

.expansion-stat-label {
    font-size: 0.85rem;
    opacity: 0.9;
}

@media (max-width: 992px) {
    .expansion-grid {
        grid-template-columns: 1fr;
    }
    
    .expansion-stats {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 576px) {
    .expansion-stats {
        grid-template-columns: 1fr;
    }
}

/* Mobile Bottom Navigation */
.mobile-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
}

.mobile-nav-items {
    display: flex;
    justify-content: space-around;
    padding: 10px 0;
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    color: var(--text-color);
    font-size: 0.75rem;
    padding: 5px 10px;
}

.mobile-nav-item i {
    font-size: 1.3rem;
}

.mobile-nav-item.active {
    color: var(--secondary-color);
}

@media (max-width: 768px) {
    .mobile-nav {
        display: block;
    }

    body {
        padding-bottom: 70px;
    }
}

/* Page À propos */
.about-section {
    padding: 80px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-content h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.about-content p {
    margin-bottom: 15px;
    line-height: 1.8;
}

/* Contact Section */
.contact-section {
    background: var(--light-bg);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-details h4 {
    color: var(--primary-color);
    margin-bottom: 5px;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.contact-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.95rem;
    font-family: inherit;
    min-height: 150px;
    resize: vertical;
}

.contact-form textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.1);
}

@media (max-width: 992px) {
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
}