/* Variables CSS pour la cohérence des couleurs */
:root {
    --primary-green: #4a9d5f;
    --secondary-green: #6bb77b;
    --light-green: #e8f5e8;
    --dark-green: #2d6e3e;
    --petrol-blue: #2c5f5a;
    --light-gray: #f5f7f9;
    --medium-gray: #8a9099;
    --dark-gray: #2d3748;
    --white: #ffffff;
    --text-dark: #2d3748;
    --text-light: #718096;
    --border-light: #e2e8f0;
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 20px 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: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--text-dark);
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-green);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-green);
    transition: width 0.3s ease;
}

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

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

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--light-green) 0%, var(--white) 100%);
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.highlight {
    color: var(--primary-green);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-offer {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-light);
    margin-bottom: 2rem;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    border-left: 4px solid var(--primary-green);
}

.offer-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.offer-content h3 {
    color: var(--primary-green);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.offer-content p {
    color: var(--text-light);
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--dark-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

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

.btn-secondary:hover {
    background-color: var(--primary-green);
    color: var(--white);
    transform: translateY(-2px);
}

.hero-image {
    position: relative;
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.floating-elements {
    position: relative;
    width: 100%;
    height: 100%;
}

.floating-icon {
    position: absolute;
    width: 80px;
    height: 80px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary-green);
    box-shadow: var(--shadow-medium);
    animation: float 3s ease-in-out infinite;
    animation-delay: var(--delay);
}

.floating-icon:nth-child(1) { top: 10%; left: 10%; }
.floating-icon:nth-child(2) { top: 20%; right: 20%; }
.floating-icon:nth-child(3) { bottom: 30%; left: 20%; }
.floating-icon:nth-child(4) { bottom: 10%; right: 10%; }

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Sections communes */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-subtitle {
    font-size: 1.25rem;
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Section Services */
.services {
    background-color: var(--light-gray);
}

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

.service-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    border-top: 4px solid var(--primary-green);
}

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

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--light-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--primary-green);
    font-size: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service-card ul {
    list-style: none;
}

.service-card li {
    color: var(--text-light);
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 20px;
}

.service-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-green);
    font-weight: bold;
}

/* Section Écologie */
.ecology {
    background: linear-gradient(135deg, var(--petrol-blue) 0%, var(--dark-green) 100%);
    color: var(--white);
}

.ecology .section-title,
.ecology .section-subtitle {
    color: var(--white);
}

.ecology-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.ecology-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

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

.ecology-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--white);
    font-size: 1.5rem;
}

.ecology-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.ecology-card p {
    margin-bottom: 1.5rem;
    opacity: 0.9;
    line-height: 1.6;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-green);
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.ecology-actions {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 15px;
    backdrop-filter: blur(10px);
}

.ecology-actions h3 {
    margin-bottom: 1.5rem;
    text-align: center;
    font-size: 1.5rem;
}

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

.action-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
}

.action-item i {
    color: var(--secondary-green);
    font-size: 1.2rem;
}

/* Section À propos */
.about {
    background-color: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text h3 {
    color: var(--primary-green);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.co2-impact {
    background: linear-gradient(135deg, var(--light-green) 0%, rgba(74, 157, 95, 0.1) 100%);
    padding: 2rem;
    border-radius: 15px;
    margin: 2rem 0;
    border-left: 4px solid var(--primary-green);
}

.co2-impact h4 {
    color: var(--primary-green);
    margin-bottom: 1rem;
    font-size: 1.3rem;
    text-align: center;
}

.co2-impact > p {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-light);
}

.impact-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.metric-item {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    border-top: 3px solid var(--primary-green);
}

.metric-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.metric-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-green);
    line-height: 1;
}

.metric-unit {
    font-size: 1rem;
    color: var(--secondary-green);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.metric-label {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.3;
}

.impact-explanation {
    background: rgba(255, 255, 255, 0.7);
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-light);
    border: 1px solid var(--border-light);
}

.values {
    margin-top: 2rem;
}

.values h4 {
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    font-size: 1.25rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.value-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--light-gray);
    border-radius: 10px;
    transition: var(--transition);
}

.value-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-light);
}

.value-item i {
    font-size: 2rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
}

.value-item h5 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.value-item p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin: 0;
}

.founder-card {
    background: var(--light-green);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    border: 2px solid var(--primary-green);
}

.founder-avatar {
    width: 80px;
    height: 80px;
    background: var(--primary-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--white);
    font-size: 2rem;
}

.founder-card h4 {
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.founder-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.certifications {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.cert-badge {
    background: var(--white);
    color: var(--primary-green);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Section Témoignages */
.testimonials {
    background-color: var(--light-gray);
}

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

.testimonial-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.testimonial-content {
    margin-bottom: 1.5rem;
}

.testimonial-content p {
    font-style: italic;
    color: var(--text-light);
    line-height: 1.6;
    position: relative;
}

.testimonial-content p::before {
    content: '"';
    font-size: 3rem;
    color: var(--primary-green);
    position: absolute;
    top: -10px;
    left: -10px;
    opacity: 0.5;
}

.testimonial-author {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.author-info h4 {
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.author-info span {
    color: var(--text-light);
    font-size: 0.9rem;
}

.testimonial-rating {
    color: var(--primary-green);
}

.testimonials-cta {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 15px;
    box-shadow: var(--shadow-light);
}

.testimonials-cta p {
    font-size: 1.25rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

/* Section Contact */
.contact {
    background: linear-gradient(135deg, var(--white) 0%, var(--light-green) 100%);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3 {
    color: var(--primary-green);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.contact-info > p {
    color: var(--text-light);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.contact-details {
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    align-items: flex-start;
}

.contact-item i {
    color: var(--primary-green);
    font-size: 1.25rem;
    margin-top: 0.25rem;
}

.contact-item h4 {
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: var(--text-light);
    margin: 0;
}

.contact-benefits h4 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.contact-benefits ul {
    list-style: none;
}

.contact-benefits li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.contact-benefits i {
    color: var(--primary-green);
}

.contact-form {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-light);
}

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

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-light);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(74, 157, 95, 0.1);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.checkbox-group input {
    width: auto;
    margin: 0;
}

.checkbox-group label {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.4;
}

/* Footer */
.footer {
    background-color: var(--text-dark);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.8);
    margin-top: 1rem;
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--primary-green);
}

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

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

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--primary-green);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

.footer-eco {
    display: flex;
    gap: 1rem;
}

.footer-eco span {
    background: var(--primary-green);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
}

/* Bouton retour en haut */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-green);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--dark-green);
    transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 2rem;
        transition: left 0.3s ease;
        border-top: 1px solid var(--border-light);
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

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

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

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

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

    .footer-links {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

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

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

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

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero-offer {
        flex-direction: column;
        text-align: center;
    }

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

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

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

    .actions-list {
        grid-template-columns: 1fr;
    }

    .impact-metrics {
        grid-template-columns: 1fr;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Amélioration de l'accessibilité */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles pour l'accessibilité */
button:focus,
input:focus,
select:focus,
textarea:focus,
a:focus {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .navbar,
    .back-to-top,
    .floating-elements {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .hero {
        padding: 20pt 0;
    }
}