:root {
    /* Palette "Élégance Mécanique" */
    --bg-dark: #0D1117; /* Fond principal */
    --bg-surface: #161B22; /* Fond des cartes/surfaces */
    --accent-red: #E53935; /* Rouge vif pour l'accent */
    --accent-red-glow: rgba(229, 57, 53, 0.4);
    --text-primary: #E6EDF3; /* Texte principal */
    --text-secondary: #8B949E; /* Texte secondaire/descriptions */
    --border-color: rgba(230, 237, 243, 0.1);

    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-dark);
    overflow-x: hidden;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

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

ul {
    list-style: none;
}

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

.btn {
    display: inline-block;
    background: var(--accent-red);
    color: var(--text-primary);
    padding: 10px 25px;
    border: 1px solid var(--accent-red);
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 0 15px 0 rgba(229, 57, 53, 0.3);
}

.btn:hover {
    background: transparent;
    color: var(--accent-red);
    transform: translateY(-3px);
    box-shadow: 0 0 25px 0 var(--accent-red-glow);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--text-primary);
    text-align: center;
    position: relative;
    padding-bottom: 15px;
    font-weight: 700;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--accent-red);
    border-radius: 2px;
}

/* En-tête */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(13, 17, 23, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 15px 0;
    transition: background 0.3s ease;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.8rem;
    color: var(--text-primary);
    font-weight: 700;
}

.logo span {
    color: var(--accent-red);
}

.navbar {
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    align-items: center;
}

.nav-links li {
    margin-left: 25px;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
    padding: 5px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-red);
    transition: width 0.3s ease;
}

.nav-links a:hover { 
    color: var(--text-primary); 
}

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

.nav-links a.active { color: var(--text-primary); }

.nav-links .btn-rdv {
    background: var(--accent-red);
    color: var(--text-primary);
    padding: 8px 20px;
    border-radius: 5px;
    margin-left: 20px;
    border: 1px solid var(--accent-red);
    box-shadow: 0 0 15px 0 var(--accent-red-glow);
}

.nav-links .btn-rdv:hover {
    background: transparent;
    color: var(--accent-red);
    transform: translateY(-3px);
    box-shadow: 0 0 25px 0 var(--accent-red-glow);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    z-index: 1002;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 4px 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Section Hero */
.hero {
    height: 90vh;
    position: relative;
    margin-top: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url('../images/acceuil.jpeg');
    background-size: cover;
    background-position: center;
}

.hero-slider {
    height: 100%;
    position: relative;
    overflow: hidden;
    width: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-primary);
    background-color: rgba(13, 17, 23, 0.7);
    background-blend-mode: overlay;
}

.slide.active {
    opacity: 1;
}

.slide-content {
    max-width: 800px;
    padding: 0 20px;
    animation: fadeInDown 1s ease-out forwards;
}

.slide-content h2 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8);
    font-weight: 800;
}

.slide-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.7);
    color: var(--text-secondary);
}

/* Section Services */
.services {
    padding: 100px 0;
    background-color: var(--bg-surface);
    position: relative;
    overflow: hidden;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.service-card {
    /* Glassmorphism Effect */
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-red);
    box-shadow: 0 0 20px var(--accent-red-glow);
}

.service-card i {
    font-size: 3rem;
    color: var(--accent-red);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* Section À propos */
.about {
    padding: 100px 0;
    background-color: var(--bg-dark);
}

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

.about-text h2 {
    text-align: left;
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 20px;
    color: var(--text-secondary);
}

.about-image {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.about-image img {
    
    display: block;
    transition: var(--transition);
}

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

/* Section Contact */
.contact {
    padding: 100px 0;
    background-color: var(--light-color);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-top: 50px;
}

.contact-info h3,
.contact-form h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.contact-info p {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.contact-info i {
    margin-right: 10px;
    color: var(--accent-color);
    width: 20px;
    text-align: center;
}

.social-links {
    display: flex;
    margin-top: 30px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    margin-right: 15px;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--accent-color);
    transform: translateY(-5px);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: 'Poppins', sans-serif;
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

/* Pied de page */
.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 70px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--accent-color);
}

.footer-section p {
    margin-bottom: 15px;
    opacity: 0.9;
}

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

.footer-section a {
    color: var(--white);
    opacity: 0.9;
    transition: var(--transition);
}

.footer-section a:hover {
    opacity: 1;
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Styles responsifs */



/* ===================== */
/*   Sections ajoutées   */
/* ===================== */

.portfolio {
    padding: 100px 0;
    background-color: var(--bg-surface);
}

.filter-controls {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
}

.filter-btn {
    border: none;
    background: transparent;
    color: var(--text-secondary);
    padding: 10px 0;
    cursor: pointer;
    transition: color 0.3s ease;
    font-size: 1rem;
    font-weight: 500;
    position: relative;
}

.filter-btn::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-red);
    transition: width 0.3s ease;
}

.filter-btn:hover {
    color: var(--text-primary);
}

.filter-btn.active {
    color: var(--accent-red);
}

.filter-btn.active::after {
    width: 100%;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.portfolio-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform .3s ease, box-shadow .3s ease;
}

.portfolio-item:hover {
    box-shadow: 0 0 25px var(--accent-red-glow);
    transform: translateY(-8px);
}

.portfolio-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.portfolio-item:hover img {
    transform: scale(1.05);
}

.portfolio-item .overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(13, 17, 23, 1), rgba(13, 17, 23, 0.7));
    color: var(--text-primary);
    padding: 20px;
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.portfolio-item .overlay.success h4 { color: #4CAF50; }

.portfolio-item:hover .overlay {
    transform: translateY(0);
}

.portfolio-item .overlay h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 5px;
    text-transform: uppercase;
}

.portfolio-item .overlay p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Booking / Prendre rendez-vous */
.booking {
    padding: 100px 0;
    background: var(--bg-dark);
}

.booking-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
    margin-top: 30px;
}

.booking-form {
    background: var(--bg-surface);
    padding: 25px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.booking-form label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.booking-form select,
.booking-form input,
.booking-form textarea {
    width: 100%;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px 15px;
    border-radius: 5px;
    font-family: 'Poppins', sans-serif;
    font-size: 16px;
    transition: var(--transition);
}

.booking-form select:focus,
.booking-form input:focus,
.booking-form textarea:focus {
    border-color: var(--accent-red);
    outline: none;
    box-shadow: 0 0 10px var(--accent-red-glow);
}

.booking-form .actions {
    display: flex;
    gap: 15px;
    align-items: center;
    margin-top: 10px;
}

.btn.btn-outline {
    background: transparent;
    color: var(--accent-red);
    border: 1px solid var(--accent-red);
    box-shadow: none;
}

.btn.btn-outline:hover {
    background: var(--accent-red);
    color: var(--text-primary);
    box-shadow: 0 0 20px var(--accent-red-glow);
}

.form-hint {
    margin-top: 10px;
    color: var(--text-secondary);
    font-size: .9rem;
}

.booking-aside .info-card {
    background: var(--bg-surface);
    padding: 20px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.booking-aside h3 { color: var(--text-primary); }
.booking-aside p, .booking-aside li { color: var(--text-secondary); }
.booking-aside ul { padding-left: 18px; }
.booking-aside li { list-style: disc; margin-bottom: 6px; }

/* Blog */
.blog { padding: 100px 0; background: var(--bg-surface); }
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.blog-card {
    background: var(--bg-dark);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform .3s ease, box-shadow .3s ease;
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 0 20px rgba(0,0,0,.3);
    border-color: var(--accent-red);
}

.blog-image {
    height: 160px;
    background-size: cover;
    background-position: center;
    transition: transform .3s ease;
}

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

.blog-content { padding: 18px; }
.blog-content h3 { color: var(--text-primary); margin-bottom: 8px; }
.blog-content p { color: var(--text-secondary); margin-bottom: 12px; font-size: 0.9rem; }
.read-more { color: var(--accent-red); font-weight: 600; }
.read-more:hover { filter: brightness(1.2); }

/* Section Contact */
.contact {
    padding: 100px 0;
    background-color: var(--bg-dark);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-top: 50px;
}

.contact-info h3,
.contact-form h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.contact-info p {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    color: var(--text-secondary);
}

.contact-info i {
    margin-right: 10px;
    color: var(--accent-red);
    width: 20px;
    text-align: center;
}

.social-links {
    display: flex;
    margin-top: 30px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-surface);
    color: var(--text-secondary);
    border-radius: 50%;
    margin-right: 15px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.social-links a:hover {
    background: var(--accent-red);
    color: var(--text-primary);
    border-color: var(--accent-red);
    transform: translateY(-5px);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-family: 'Poppins', sans-serif;
    font-size: 16px;
    transition: var(--transition);
    background: var(--bg-surface);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent-red);
    outline: none;
    box-shadow: 0 0 10px var(--accent-red-glow);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

/* Carte Google Maps */
.map-wrapper { margin-top: 30px; }
.map {
    width: 100%;
    height: 360px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

/* Pied de page */
.footer {
    background: var(--bg-surface);
    color: var(--text-primary);
    padding: 70px 0 20px;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
    color: var(--text-primary);
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--accent-red);
}

.footer-section p {
    margin-bottom: 15px;
    opacity: 0.9;
    color: var(--text-secondary);
}

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

.footer-section a {
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--accent-red);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Bouton WhatsApp flottant */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #25D366;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 8px 24px rgba(0,0,0,.2);
    z-index: 1001;
    transition: transform .2s ease, box-shadow .2s ease;
}

.whatsapp-float:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(0,0,0,.25);
}

/* Bouton Retour en haut */
.back-to-top {
    position: fixed;
    bottom: 90px; /* Au-dessus du bouton WhatsApp */
    right: 20px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--bg-surface);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 8px 24px rgba(0,0,0,.2);
    z-index: 1001;
    transition: all 0.4s ease;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--accent-red);
    color: var(--text-primary);
    border-color: var(--accent-red);
    transform: translateY(-5px);
}


/* Styles responsifs */
@media (max-width: 992px) {
    .container {
        width: 95%;
    }
    
    .about-content,
    .contact-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .about-image {
        order: -1;
    }

    .booking-container {
        display: flex;
        flex-direction: column-reverse;
        gap: 30px;
    }
    .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: var(--bg-dark);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding: 40px 20px;
        transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
        opacity: 0;
        visibility: hidden;
        transform: scale(0.95);
        z-index: 1001;
    }
    
    .nav-links.active {
        opacity: 1;
        visibility: visible;
        transform: scale(1);
    }
    
    .nav-links li {
        margin: 15px 0;
    }
    
    .nav-links .btn-rdv {
        margin-left: 0;
        margin-top: 20px;
    }
    
    .slide-content h2 {
        font-size: 2.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .slide-content h2 {
        font-size: 1.8rem;
    }
    
    .slide-content p {
        font-size: 1rem;
    }
    
    .btn {
        padding: 8px 20px;
        font-size: 14px;
    }

    .booking-container {
        display: flex;
        flex-direction: column-reverse;
        gap: 30px;
    }
    .contact-container {
        flex-direction: column-reverse;
        gap: 30px;
    }
}