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

/* Animations et transitions globales */
:root {
    --primary-color: #2255cd;
    --secondary-color: #1a5f7a;
    --accent-color: #2c88a8;
    --text-color: #333;
    --bg-color: #fff;
    --shadow: 0 4px 20px rgba(0,0,0,0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes slideInDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

/* Animation classes */
.animate-fadeInUp {
    animation: fadeInUp 0.8s ease-out;
}

.animate-fadeInLeft {
    animation: fadeInLeft 0.8s ease-out;
}

.animate-fadeInRight {
    animation: fadeInRight 0.8s ease-out;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

.animate-slideInDown {
    animation: slideInDown 0.5s ease-out;
}

/* Intersection Observer animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: var(--transition);
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: var(--transition);
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.8);
    transition: var(--transition);
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

/* Calculateur de devis */
.devis-calculator {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border: 2px solid var(--primary-color);
    border-radius: 12px;
    padding: 20px;
    margin: 20px 0;
    box-shadow: var(--shadow);
}

.devis-calculator h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.2rem;
    text-align: center;
}

.estimation-result {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.estimation-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 6px;
    font-weight: 500;
}

.estimation-item.total {
    background: var(--primary-color);
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: 8px;
}

.estimation-item span:last-child {
    font-weight: 600;
    color: var(--primary-color);
}

.estimation-item.total span:last-child {
    color: white;
}

/* Section Carrières - Photo du fondateur */
.carrieres-images {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.founder-photo {
    position: relative;
    text-align: center;
}

.founder-photo img {
    transition: var(--transition);
}

.founder-photo:hover img {
    transform: scale(1.02);
    box-shadow: 0 8px 25px rgba(0,0,0,0.2) !important;
}

.founder-info {
    margin-top: 15px;
    padding: 15px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.founder-info h4 {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.founder-info p {
    color: var(--text-color);
    margin-bottom: 5px;
    font-weight: 500;
}

.founder-info p:last-child {
    font-style: italic;
    color: #666;
    font-size: 0.9em;
}

/* Photo des membres de l'équipe */
.member-photo-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.member-photo:hover .member-photo-img {
    transform: scale(1.05);
    box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

.member-photo {
    position: relative;
    overflow: hidden;
}

.member-photo::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(34, 85, 205, 0.1), rgba(26, 95, 122, 0.1));
    border-radius: 50%;
    opacity: 0;
    transition: var(--transition);
    z-index: 1;
}

.member-photo:hover::before {
    opacity: 1;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
    width: 100%;
    margin: 0;
    padding: 0;
}

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

/* Media Queries pour Mobile - NE MODIFIE PAS LE DESIGN PC */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    body {
        font-size: 14px;
    }
    
    /* Hero Section Mobile */
    .hero {
        min-height: 300px;
    }
    
    .hero-container {
        padding: 100px 16px 60px 16px;
        min-height: 300px;
    }
    
    .hero-content h1 {
        font-size: 2.2rem;
        line-height: 1.2;
    }
    
    .hero-content h2 {
        font-size: 1.3rem;
    }
    
    .hero-content p {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 0.8rem;
    }
    
    .btn {
        width: 100%;
        text-align: center;
        padding: 12px 20px;
    }
    
    /* Section Titles */
    .section-title {
        font-size: 2rem;
        text-align: center;
        margin-bottom: 1.5rem;
    }
    
    /* Services Grid */
    .services-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .service-card {
        padding: 1.5rem;
        text-align: center;
    }
    
    /* Projects Grid */
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .project-card {
        margin-bottom: 1rem;
    }
    
    /* About Section */
    .about-content {
        flex-direction: column;
        gap: 2rem;
    }
    
    .about-text {
        order: 2;
    }
    
    .about-image {
        order: 1;
    }
    
    /* Team Section */
    .team-members {
        flex-direction: column;
        gap: 2rem;
    }
    
    .team-member {
        flex-direction: column;
        text-align: center;
    }
    
    .member-photo {
        margin-bottom: 1rem;
    }
    
    /* Forms */
    .devis-content,
    .carrieres-content {
        flex-direction: column;
        gap: 2rem;
    }
    
    .form-group {
        margin-bottom: 1rem;
    }
    
    .form-row {
        flex-direction: column;
        gap: 1rem;
    }
    
    /* Stats */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        text-align: center;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    /* Chat Widget */
    .chat-container {
        width: 100%;
        height: 100vh;
        border-radius: 0;
        bottom: 0;
        right: 0;
    }
    
    .chat-toggle {
        bottom: 20px;
        right: 20px;
        width: 60px;
        height: 60px;
    }
}

/* Media Query pour très petits écrans */
@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }
    
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .hero-content h2 {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .service-card,
    .project-card {
        padding: 1rem;
    }
    
    .btn {
        padding: 10px 16px;
        font-size: 0.9rem;
    }
    
    .form-group input,
    .form-group textarea,
    .form-group select {
        padding: 12px;
        font-size: 16px; /* Évite le zoom sur iOS */
    }
    
    .nav-logo-text {
        display: none;
    }
    
    .nav-logo img {
        width: 40px;
        height: 40px;
    }
}

/* Header et Navigation */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: #fff;
    z-index: 1000;
    box-shadow: 0 2px 16px rgba(0,0,0,0.07);
    padding: 0;
}
.navbar {
    width: 100%;
    padding: 0;
}
.nav-container {
    max-width: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    height: 80px;
}

/* Navigation Mobile */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 16px;
        height: 70px;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #fff;
        flex-direction: column;
        box-shadow: 0 4px 20px rgba(0,0,0,0.1);
        z-index: 999;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        margin: 0;
        border-bottom: 1px solid #f0f0f0;
    }
    
    .nav-link {
        display: block;
        padding: 16px 20px;
        color: #333;
        text-decoration: none;
        font-weight: 500;
        transition: background-color 0.3s ease;
    }
    
    .nav-link:hover {
        background-color: #f8f9fa;
        color: #2255cd;
    }
    
    .hamburger {
        display: flex;
        flex-direction: column;
        cursor: pointer;
        padding: 8px;
    }
    
    .hamburger span {
        width: 25px;
        height: 3px;
        background: #333;
        margin: 3px 0;
        transition: 0.3s;
        border-radius: 2px;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
}
.nav-logo-link {
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.nav-logo-link:hover {
    transform: scale(1.02);
}

.nav-logo-link:hover .nav-logo-title {
    color: var(--primary-color);
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 14px;
}
.nav-logo img {
    height: 48px;
    width: auto;
    display: block;
}
.nav-logo-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    line-height: 1.1;
}
.nav-logo-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: #2255cd;
    letter-spacing: 0.5px;
}
.nav-logo-sub {
    font-size: 0.95rem;
    color: #666;
    font-weight: 400;
}
.nav-menu {
    display: flex;
    gap: 2.2rem;
    list-style: none;
    margin: 0;
    padding: 0;
}
.nav-menu li {
    display: flex;
    align-items: center;
}
.nav-link {
    text-decoration: none;
    color: #222;
    font-weight: 500;
    font-size: 1.05rem;
    transition: color 0.2s;
    padding: 6px 0;
}
.nav-link:hover {
    color: #2255cd;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #1a5f7a;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-buttons {
    margin-left: 2rem;
    display: flex;
    align-items: center;
}

/* Boutons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
    transform: translateY(0);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(34, 85, 205, 0.3);
}

.btn:active {
    transform: translateY(0);
    transition: transform 0.1s;
}

.btn-primary {
    background: linear-gradient(135deg, #1a5f7a, #2c88a8);
    color: white;
    box-shadow: 0 4px 15px rgba(26, 95, 122, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(26, 95, 122, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #1a5f7a;
    border: 2px solid #1a5f7a;
}

.btn-secondary:hover {
    background: #1a5f7a;
    color: white;
    transform: translateY(-2px);
}

.btn.btn-primary {
    background: #2275cd;
    color: #fff;
    border-radius: 8px;
    padding: 12px 28px;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: 0 2px 8px #0001;
    border: none;
    transition: background 0.2s;
}
.btn.btn-primary:hover {
    background: #2255cd;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    position: relative;
    width: 100%;
    min-height: 420px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: 1;
}
.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.hero-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(34, 85, 205, 0.45); /* bleu GCBTP, semi-transparent */
    z-index: 2;
}
.hero-container {
    position: relative;
    z-index: 3;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 20px 100px 20px;
    display: flex;
    align-items: center;
    min-height: 420px;
}
.hero-content {
    color: #fff;
    max-width: 600px;
    text-align: left;
}
.hero-content h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    color: #fff;
    text-shadow: 0 2px 8px #0002;
}
.hero-content h2 {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1.2rem;
    color: #fff;
}
.hero-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: #e0eaf0;
}
.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-placeholder {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #1a5f7a, #2c88a8);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 20px 40px rgba(26, 95, 122, 0.3);
}

.hero-placeholder i {
    font-size: 8rem;
    color: white;
    opacity: 0.8;
}

/* Sections générales */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1a5f7a;
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: #666;
    text-align: center;
    margin-bottom: 3rem;
    font-weight: 400;
}

/* Services Section */
.services {
    padding: 80px 0;
    background: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #f0f0f0;
}

.service-image {
    margin-bottom: 1.5rem;
    border-radius: 10px;
    overflow: hidden;
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.service-card:hover .service-image img {
    transform: scale(1.05);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #1a5f7a, #2c88a8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon i {
    font-size: 2rem;
    color: white;
}

.service-card h3 {
    font-size: 1.3rem;
    color: #1a5f7a;
    margin-bottom: 1rem;
    font-weight: 600;
}

.service-card p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service-link {
    color: #1a5f7a;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap 0.3s ease;
}

.service-link:hover {
    gap: 1rem;
}

/* Mission Section */
.mission {
    padding: 80px 0;
    background: linear-gradient(135deg, #1a5f7a 0%, #2c88a8 100%);
    color: white;
}

.mission-content h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    font-weight: 700;
}

.mission-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.mission-content strong {
    color: #ffd700;
}

/* Projects Section */
.projects {
    padding: 80px 0;
    background: #f8fafc;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
    margin-top: 32px;
}
.project-card {
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 4px 24px #0001;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    transition: box-shadow 0.2s;
    overflow: hidden;
}
.project-img-container {
    width: 100%;
    aspect-ratio: 4/3;
    background: #f4f6fa;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.project-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.project-title {
    text-align: center;
    font-size: 1.08rem;
    font-weight: 700;
    color: #2d3a4a;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 18px 0 10px 0;
    background: #fff;
}
.project-card:hover {
    box-shadow: 0 8px 32px #0002;
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, #1a5f7a, #2c88a8);
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-image i {
    font-size: 4rem;
    color: white;
    opacity: 0.8;
}

.projects-button {
    text-align: center;
    margin-top: 3rem;
}

/* Stats Section */
.stats {
    padding: 80px 0;
    background: linear-gradient(135deg, #1a5f7a 0%, #2c88a8 100%);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item h3 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #ffd700;
}

.stat-item p {
    font-size: 1.1rem;
    font-weight: 500;
}

/* About Section */
.about {
    padding: 80px 0;
    background: #f8f9fa;
}

.about-content {
    display: flex;
    flex-direction: row;
    gap: 48px;
    align-items: stretch;
}
.about-text {
    flex: 1 1 0;
}
.about-description h3 {
    color: #1a5f7a;
    font-size: 1.5rem;
    margin: 2rem 0 1rem 0;
    font-weight: 600;
}

.about-description p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: #555;
}

.about-description ul {
    margin: 1rem 0 2rem 2rem;
}

.about-description ul li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
    color: #555;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin: 2rem 0;
}

.expertise-item {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.expertise-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.expertise-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #1a5f7a, #2c88a8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.expertise-icon i {
    font-size: 1.5rem;
    color: white;
}

.expertise-item h4 {
    color: #1a5f7a;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.expertise-item p {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.5;
    margin: 0;
}

.about-image {
    flex: 1 1 0;
    min-width: 320px;
    height: 100%;
    display: flex;
    align-items: stretch;
    justify-content: stretch;
}
.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 16px;
    box-shadow: 0 4px 24px #0002;
    display: block;
}

.about-placeholder {
    background: linear-gradient(135deg, #1a5f7a, #2c88a8);
    border-radius: 20px;
    padding: 3rem;
    text-align: center;
    color: white;
    box-shadow: 0 10px 30px rgba(26, 95, 122, 0.3);
}

.about-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.about-placeholder h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.about-placeholder p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin: 0;
}

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Trust Section */
.trust {
    padding: 80px 0;
    background: white;
}

.trust h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #1a5f7a;
    margin-bottom: 3rem;
    font-weight: 700;
}

.trust-logos {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
    justify-items: center;
}

.trust-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.trust-logo i {
    font-size: 3rem;
    color: #1a5f7a;
}

.trust-logo span {
    font-weight: 600;
    color: #666;
}

/* Footer */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: #ffd700;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-section h4 {
    color: #ffd700;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.footer-section h5 {
    color: #ffd700;
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.footer-section p {
    color: #ccc;
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #ffd700;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 2rem;
    text-align: center;
    color: #ccc;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-placeholder {
        width: 300px;
        height: 300px;
    }
    
    .hero-placeholder i {
        font-size: 6rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
        .trust-logos {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    @media (max-width: 480px) {
        .trust-logos {
            grid-template-columns: 1fr;
            gap: 1rem;
        }
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .expertise-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .about-placeholder {
        padding: 2rem;
    }

    .about-placeholder i {
        font-size: 3rem;
    }

    .team-member {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .photo-placeholder {
        width: 200px;
        height: 200px;
    }
    
    .photo-placeholder i {
        font-size: 3rem;
    }
    
    .member-name {
        font-size: 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content h2 {
        font-size: 1.2rem;
    }
    
    .hero-placeholder {
        width: 250px;
        height: 250px;
    }
    
    .hero-placeholder i {
        font-size: 4rem;
    }
    
    .service-card {
        padding: 1.5rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.8rem;
    }
}

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

.service-card,
.project-card {
    animation: fadeInUp 0.6s ease forwards;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Team Section */
.team {
    padding: 80px 0;
    background: #fff;
}
.team-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
    line-height: 1.8;
}
.team-intro p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: #555;
}
.team-members {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}
.team-member {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 3rem;
    align-items: start;
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.team-member:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}
.member-photo {
    text-align: center;
}
.photo-placeholder {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: linear-gradient(135deg, #2255cd, #4a90e2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    box-shadow: 0 10px 20px rgba(34, 85, 205, 0.3);
}
.photo-placeholder i {
    font-size: 4rem;
    color: white;
}
.member-info {
    padding: 1rem 0;
}
.member-name {
    font-size: 2rem;
    font-weight: 700;
    color: #2255cd;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}
.member-title {
    font-size: 1.1rem;
    color: #666;
    font-weight: 500;
    margin-bottom: 1.5rem;
    font-style: italic;
}
.member-description p {
    margin-bottom: 1rem;
    line-height: 1.7;
    color: #555;
    font-size: 1rem;
} 

/* --- Carrières Section --- */
.carrieres {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 12px #0001;
    margin: 60px 0 40px 0;
    padding: 40px 0;
}
.carrieres-content {
    display: flex;
    gap: 48px;
    align-items: flex-start;
    justify-content: space-between;
}
.carrieres-left {
    flex: 1 1 420px;
    min-width: 340px;
    max-width: 540px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.carrieres-right {
    flex: 1 1 320px;
    min-width: 260px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
}
.carrieres-right img {
    max-width: 100%;
    border-radius: 12px;
    box-shadow: 0 2px 8px #0001;
}
.carrieres-text {
    flex: 1 1 350px;
    min-width: 320px;
}
.carrieres-text h3 {
    color: #2255cd;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: 1px;
    text-transform: uppercase;
}
.carrieres-text p {
    margin-bottom: 12px;
    color: #222;
    font-size: 1rem;
}
.carrieres-form {
    margin-top: 18px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.carrieres-form .form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.carrieres-form label {
    font-size: 0.98rem;
    color: #333;
    font-weight: 500;
    margin-bottom: 2px;
}
.carrieres-form input[type="text"],
.carrieres-form input[type="email"],
.carrieres-form input[type="tel"],
.carrieres-form textarea {
    padding: 12px 14px;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-size: 1rem;
    background: #fafbfc;
    transition: border 0.2s;
}
.carrieres-form input:focus,
.carrieres-form textarea:focus {
    border-color: #2255cd;
    outline: none;
}
.carrieres-form textarea {
    min-height: 90px;
    resize: vertical;
}
.carrieres-form input[type="file"] {
    display: none;
}
.carrieres-form .file-label {
    border: 1.5px dashed #bfc6d1;
    border-radius: 6px;
    padding: 24px;
    text-align: center;
    color: #888;
    background: #f7f8fa;
    cursor: pointer;
    font-size: 1rem;
    margin-bottom: 8px;
    transition: border 0.2s;
}
.carrieres-form .file-label:hover {
    border-color: #2255cd;
    color: #2255cd;
}
.carrieres-form button {
    background: #2255cd;
    color: #fff;
    border: none;
    border-radius: 4px;
    padding: 12px 0;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    margin-top: 8px;
}
.carrieres-form button:disabled {
    background: #bfc6d1;
    cursor: not-allowed;
}
.carrieres-image {
    flex: 1 1 320px;
    min-width: 260px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
}
.carrieres-image img {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 2px 8px #0001;
}
@media (max-width: 900px) {
    .carrieres-content {
        flex-direction: column;
        gap: 32px;
    }
    .carrieres-right {
        justify-content: flex-start;
    }
    .carrieres-left, .carrieres-right {
        max-width: 100%;
    }
}
/* --- Fin Carrières Section --- */ 

.project-gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 16px;
}
.project-gallery img {
    width: 220px;
    height: 150px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 2px 8px #0001;
} 

@media (max-width: 900px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 600px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
} 

.project-link {
  text-decoration: none;
  color: inherit;
  display: block;
  height: 100%;
} 

.project-detail-row {
  display: flex;
  gap: 40px;
  align-items: flex-start;
  justify-content: center;
  flex-wrap: wrap;
  margin: 40px 0;
}
.project-gallery-col {
  flex: 1 1 340px;
  min-width: 320px;
}
.project-gallery-row {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin: 32px 0 24px 0;
}
.project-gallery-row img {
  width: 540px;
  height: 360px;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: 0 4px 24px #0002;
  border: 2px solid #e6eaf0;
  background: #fff;
  transition: transform 0.25s, box-shadow 0.25s, border 0.25s;
}
.project-gallery-row img:hover {
  transform: scale(1.08) translateY(-8px);
  box-shadow: 0 12px 36px #2255cd33;
  border: 2.5px solid #2255cd;
  z-index: 2;
}
.project-info-col {
  flex: 1 1 340px;
  min-width: 320px;
  background: #f8fafc;
  border-radius: 12px;
  padding: 32px 24px;
  box-shadow: 0 2px 12px #0001;
  max-width: 420px;
}
.project-info-col h1 {
  font-size: 2rem;
  margin-bottom: 18px;
  color: #2255cd;
}
.project-info-col ul {
  list-style: none;
  padding: 0;
  margin-bottom: 18px;
}
.project-info-col li {
  margin-bottom: 10px;
  font-size: 1.08rem;
}
.btn.btn-secondary {
  display: inline-block;
  margin-top: 18px;
  background: #fff;
  color: #2255cd;
  border: 2px solid #2255cd;
  border-radius: 8px;
  padding: 10px 22px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}
.btn.btn-secondary:hover {
  background: #2255cd;
  color: #fff;
}
@media (max-width: 900px) {
  .project-detail-row {
    flex-direction: column;
    gap: 32px;
    align-items: stretch;
  }
  .project-info-col, .project-gallery-col {
    max-width: 100%;
  }
} 

/* --- Modernisation générale --- */
body {
  font-family: 'Inter', 'Roboto', Arial, sans-serif;
  background: #fafbfc;
  color: #222;
}

/* --- Galerie d'images --- */
.project-gallery-row {
  display: flex;
  justify-content: stretch;
  align-items: stretch;
  gap: 4px;
  width: 100%;
  height: 420px;
  margin: 40px 0 32px 0;
  padding: 0;
  max-width: none;
}
.project-gallery-row img {
  flex: 1 1 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  box-shadow: 0 2px 8px #0001;
  border: none;
  background: #fff;
  transition: transform 0.25s, box-shadow 0.25s;
  display: block;
  min-width: 0;
}
@media (max-width: 900px) {
  .project-gallery-row {
    height: 240px;
    gap: 2px;
  }
}
@media (max-width: 600px) {
  .project-gallery-row {
    flex-direction: column;
    height: auto;
    gap: 2px;
  }
  .project-gallery-row img {
    width: 100%;
    height: 120px;
  }
}

/* --- Fiche projet à droite --- */
.project-info-box {
  background: #f5f8ff;
  border-radius: 18px;
  box-shadow: 0 2px 16px #2255cd11;
  padding: 32px 28px 28px 28px;
  margin-top: 24px;
  max-width: 420px;
  color: #1a2340;
}
.project-info-box h2, .project-info-box h1 {
  color: #2255cd;
  font-size: 2.1rem;
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.project-info-box b, .project-info-box strong {
  color: #f7b500;
  font-weight: 700;
}
.project-info-box p, .project-info-box li {
  font-size: 1.08rem;
  line-height: 1.7;
  margin-bottom: 10px;
}

/* --- Titres généraux --- */
h1, h2, h3 {
  font-family: 'Inter', 'Roboto', Arial, sans-serif;
  font-weight: 800;
  color: #2255cd;
  letter-spacing: 0.5px;
}

/* --- Footer modernisé --- */
footer {
  background: #18191b;
  color: #fff;
  padding: 48px 0 32px 0;
  font-size: 1.05rem;
}
footer h3, footer h4 {
  color: #f7b500;
  font-weight: 700;
  margin-bottom: 12px;
}
footer a {
  color: #e6eaf0;
  text-decoration: none;
  transition: color 0.2s;
}
footer a:hover {
  color: #f7b500;
}

/* --- Bouton principal --- */
.btn-primary, .main-btn {
  background: #2255cd;
  color: #fff;
  font-weight: 700;
  border-radius: 8px;
  padding: 12px 28px;
  border: none;
  font-size: 1.1rem;
  box-shadow: 0 2px 8px #2255cd22;
  transition: background 0.2s, box-shadow 0.2s;
}
.btn-primary:hover, .main-btn:hover {
  background: #1a2340;
  box-shadow: 0 4px 16px #2255cd33;
} 

/* --- Loupe de zoom sur images galerie --- */
.magnifier-glass {
  position: absolute;
  border: 3px solid #2255cd;
  border-radius: 50%;
  cursor: zoom-in;
  width: 120px;
  height: 120px;
  box-shadow: 0 4px 16px #2255cd33;
  background-repeat: no-repeat;
  background-size: 200% 200%;
  pointer-events: none;
  z-index: 10;
  display: none;
}
.project-gallery-row {
  position: relative;
}

/* Devis Section */
.devis {
    background: #f8f9fa;
    padding: 80px 0;
}

.devis-process-image {
    text-align: center;
    margin: 30px 0;
}

.devis-process-image img {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.devis-process-image img:hover {
    transform: scale(1.02);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15) !important;
}

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

.devis-left h3 {
    font-size: 2rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
}

.devis-left p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 30px;
    line-height: 1.7;
}

.devis-benefits {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

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

.benefit-item i {
    color: #2255cd;
    font-size: 1.2rem;
}

.benefit-item span {
    font-size: 1rem;
    color: #555;
    font-weight: 500;
}

.devis-form {
    background: #fff;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}

.devis-form .form-group {
    margin-bottom: 24px;
}

.devis-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
    font-size: 0.95rem;
}

.devis-form input,
.devis-form select,
.devis-form textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: #fff;
}

.devis-form input:focus,
.devis-form select:focus,
.devis-form textarea:focus {
    outline: none;
    border-color: #2255cd;
}

.devis-form textarea {
    min-height: 120px;
    resize: vertical;
}

.devis-form select {
    cursor: pointer;
}

/* Responsive pour Devis */
@media (max-width: 768px) {
    .devis-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .devis-process-image img {
        max-width: 100% !important;
        margin: 15px 0 !important;
    }
    
    .devis-process-image p {
        font-size: 0.8em !important;
        margin-top: 8px !important;
    }
    
    .devis-form {
        padding: 30px 20px;
    }
    
    .devis-left h3 {
        font-size: 1.5rem;
    }
}

/* Chat Widget */
.chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    font-family: 'Inter', sans-serif;
}

.chat-toggle {
    width: 60px;
    height: 60px;
    background: #2255cd;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(34, 85, 205, 0.3);
    transition: all 0.3s ease;
    position: relative;
}

.chat-toggle:hover {
    background: #1a2340;
    transform: scale(1.05);
}

.chat-toggle i {
    color: white;
    font-size: 24px;
}

.chat-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: #ff4757;
    color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
}

.chat-container {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 350px;
    height: 500px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    display: none;
    flex-direction: column;
    overflow: hidden;
    z-index: 1001;
}

.chat-header {
    background: #2255cd;
    color: white;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-header-info h4 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
}

.chat-status {
    font-size: 12px;
    opacity: 0.9;
}

.chat-close {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 18px;
    padding: 4px;
    border-radius: 4px;
    transition: background 0.2s;
}

.chat-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

.chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-height: 300px;
    min-height: 200px;
}

.chat-message {
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

.bot-message {
    justify-content: flex-start;
}

.user-message {
    justify-content: flex-end;
}

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.bot-message .message-avatar {
    background: #f1f3f4;
    color: #2255cd;
}

.user-message .message-avatar {
    background: #2255cd;
    color: white;
}

.message-content {
    max-width: 70%;
    background: #f8f9fa;
    padding: 12px 16px;
    border-radius: 18px;
    position: relative;
}

.user-message .message-content {
    background: #2255cd;
    color: white;
}

.message-content p {
    margin: 0 0 4px 0;
    font-size: 14px;
    line-height: 1.4;
}

.message-text {
    font-size: 14px;
    line-height: 1.5;
}

.message-text strong {
    font-weight: 600;
    color: inherit;
}

.message-text em {
    font-style: italic;
}

.emoji, .check-emoji, .question-emoji {
    font-size: 16px;
    margin-right: 4px;
}

.check-emoji {
    color: #28a745;
}

.question-emoji {
    color: #ffc107;
}

.message-time {
    font-size: 11px;
    opacity: 0.7;
    display: block;
    margin-top: 4px;
}

.chat-input-container {
    padding: 16px 20px;
    border-top: 1px solid #e1e5e9;
    background: #f8f9fa;
}

.quick-actions {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.quick-btn {
    background: white;
    border: 1px solid #e1e5e9;
    border-radius: 20px;
    padding: 6px 12px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
    color: #666;
}

.quick-btn:hover {
    background: #2255cd;
    color: white;
    border-color: #2255cd;
}

.chat-input {
    display: flex;
    gap: 8px;
    align-items: center;
}

.chat-input input {
    flex: 1;
    border: 1px solid #e1e5e9;
    border-radius: 20px;
    padding: 10px 16px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
    background: white;
    color: #333;
    font-family: 'Inter', sans-serif;
}

.chat-input input:focus {
    border-color: #2255cd;
}

.chat-send {
    width: 40px;
    height: 40px;
    background: #2255cd;
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.chat-send:hover {
    background: #1a2340;
}

/* Chat scrollbar styling */
.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* Responsive Chat */
@media (max-width: 480px) {
    .chat-container {
        width: calc(100vw - 40px);
        height: calc(100vh - 120px);
        bottom: 80px;
        right: 20px;
    }
    
    .chat-widget {
        bottom: 10px;
        right: 10px;
    }
    
    .chat-messages {
        max-height: calc(100vh - 200px);
    }
}