:root {
    --primary-color: #ff3333;
    --secondary-color: #ffffff;
    --bg-color: #0a0a0a;
    --bg-secondary: #141414;
    --text-color: #e0e0e0;
    --text-muted: #a0a0a0;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--secondary-color);
    font-weight: 700;
    line-height: 1.2;
}

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

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

ul {
    list-style: none;
}

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

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    display: block;
    width: 100%;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
    margin: 10px auto 0;
    border-radius: 2px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 51, 51, 0.3);
}

.btn-primary:hover {
    background-color: transparent;
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

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

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 20px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--secondary-color);
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    font-size: 0.95rem;
}

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

.btn-cta {
    padding: 8px 20px;
    border: 1px solid var(--primary-color);
    border-radius: 4px;
    color: var(--primary-color) !important;
}

.btn-cta:hover {
    background-color: var(--primary-color);
    color: white !important;
}

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--secondary-color);
    margin: 5px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(rgba(10, 10, 10, 0.85), rgba(10, 10, 10, 0.95)), url('https://images.unsplash.com/photo-1502602898657-3e91760cbb34?ixlib=rb-4.0.3&fm=webp&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: scroll; /* Améliore la performance mobile - fixed cause des problèmes de repaint */
    padding-top: 80px;
    contain: layout style paint; /* Optimisation de rendu */
}

.hero-content {
    max-width: 800px;
    padding: 0 20px;
    animation: fadeIn 1s ease-out;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 20px;
    line-height: 1.1;
}

.hero .subtitle {
    font-size: 1.5rem;
    color: var(--text-muted);
    margin-bottom: 30px;
}

.hero .description {
    font-size: 1.1rem;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

/* Services Section */
.services {
    padding: 100px 0;
    background-color: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--bg-color);
    padding: 40px 30px;
    border-radius: 10px;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.service-card .icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.service-link {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
    margin-top: 15px;
    display: inline-block;
    transition: var(--transition);
}

.service-link:hover {
    transform: translateX(5px);
}

/* Portfolio Section */
.portfolio {
    padding: 100px 0;
}

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

.project-card {
    background-color: var(--bg-secondary);
    border-radius: 10px;
    overflow: hidden;
    transition: var(--transition);
}

.project-card:hover {
    transform: scale(1.02);
}

.project-image-container {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-img {
    transform: scale(1.1);
}

.project-info {
    padding: 25px;
}

.project-info h3 {
    margin-bottom: 8px;
    font-size: 1.3rem;
}

.project-cat {
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

.project-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

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

.about-wrapper {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-image {
    flex: 1;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

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

.about-content {
    flex: 1;
}

.benefits-list {
    margin-top: 30px;
    text-align: left;
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
}

.benefits-list li {
    font-size: 1.1rem;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Responsive for About */
@media (max-width: 900px) {
    .about-wrapper {
        flex-direction: column;
    }
    
    .about-content .section-title {
        text-align: center !important;
        left: 50% !important;
        transform: translateX(-50%) !important;
    }
}

/* Contact Section */
.contact {
    padding: 100px 0;
}

.contact-intro {
    text-align: center;
    margin-bottom: 50px;
    font-size: 1.2rem;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--bg-secondary);
    padding: 40px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    background-color: var(--bg-color);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    color: var(--text-color);
    font-family: inherit;
    transition: var(--transition);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23ff3333' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 35px;
}

.form-group select option {
    background-color: var(--bg-color);
    color: var(--text-color);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.contact-form button {
    width: 100%;
}

/* Footer */
.footer {
    background-color: #000;
    padding: 50px 0 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

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

.social-links a {
    color: var(--text-muted);
    font-weight: 600;
}

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

.copyright {
    text-align: center;
    color: #555;
    font-size: 0.8rem;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Technologies Section */
.technologies {
    padding: 100px 0;
    background-color: var(--bg-color);
}

.tech-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px;
    font-size: 1.1rem;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.tech-category {
    background-color: var(--bg-secondary);
    padding: 30px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.tech-category:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.tech-category h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.tech-category ul {
    list-style: none;
}

.tech-category li {
    padding: 8px 0;
    color: var(--text-muted);
    position: relative;
    padding-left: 20px;
}

.tech-category li:before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* Zones Section */
.zones {
    padding: 100px 0;
    background-color: var(--bg-secondary);
}

.zones-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px;
    font-size: 1.1rem;
}

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

.zone-card {
    background-color: var(--bg-color);
    padding: 25px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.zone-card:hover {
    transform: translateX(10px);
    box-shadow: 0 5px 20px rgba(255, 51, 51, 0.2);
}

.zone-card h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.zone-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Testimonials Section */
.testimonials {
    padding: 100px 0;
    background-color: var(--bg-color);
}

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

.testimonial-card {
    background-color: var(--bg-secondary);
    padding: 30px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.testimonial-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.stars {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 15px;
    line-height: 1.6;
}

.testimonial-author {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
}

/* FAQ Section */
.faq {
    padding: 100px 0;
    background-color: var(--bg-secondary);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--bg-color);
    padding: 25px 30px;
    margin-bottom: 20px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.faq-item:hover {
    transform: translateX(5px);
}

.faq-question {
    color: var(--secondary-color);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.faq-answer {
    color: var(--text-muted);
    line-height: 1.7;
}

/* Blog Preview Section */
.blog-preview {
    padding: 100px 0;
    background-color: var(--bg-color);
}

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

.blog-card {
    background-color: var(--bg-secondary);
    padding: 30px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.blog-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.blog-meta {
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.blog-card h3 {
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.blog-card p {
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.6;
}

.read-more {
    color: var(--primary-color);
    font-weight: 600;
    display: inline-block;
    transition: var(--transition);
}

.read-more:hover {
    transform: translateX(5px);
}

/* Service Detail Pages */
.service-detail {
    padding: 50px 0 100px;
}

.service-detail h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-align: center;
}

.lead {
    font-size: 1.3rem;
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 60px;
}

.service-content {
    max-width: 900px;
    margin: 0 auto;
}

.service-content h2 {
    font-size: 2rem;
    margin: 40px 0 20px;
    color: var(--secondary-color);
}

.service-content p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.service-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin: 40px 0;
}

.type-card {
    background-color: var(--bg-secondary);
    padding: 30px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.type-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.type-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.type-card ul {
    margin: 20px 0;
    padding-left: 0;
}

.type-card li {
    padding: 8px 0;
    color: var(--text-muted);
    position: relative;
    padding-left: 25px;
}

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

.price {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.3rem;
    margin-top: 20px;
}

.process {
    display: grid;
    gap: 25px;
    margin: 40px 0;
}

.process-step {
    background-color: var(--bg-secondary);
    padding: 25px;
    border-radius: 10px;
    display: flex;
    gap: 20px;
    align-items: start;
    border-left: 4px solid var(--primary-color);
}

.step-number {
    background-color: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.process-step h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.process-step p {
    color: var(--text-muted);
    margin: 0;
}

.advantages {
    background-color: var(--bg-secondary);
    padding: 30px;
    border-radius: 10px;
    margin: 40px 0;
}

.advantages li {
    padding: 12px 0;
    font-size: 1.05rem;
    line-height: 1.6;
}

.seo-methodology {
    margin: 40px 0;
}

.seo-methodology h3 {
    color: var(--primary-color);
    margin: 30px 0 15px;
    font-size: 1.3rem;
}

.cta-section {
    background: linear-gradient(135deg, var(--primary-color), #cc0000);
    padding: 50px;
    border-radius: 15px;
    text-align: center;
    margin: 60px 0;
}

.cta-section h2 {
    color: white;
    margin-bottom: 15px;
}

.cta-section p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: 30px;
}

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

.cta-section .btn:hover {
    background-color: var(--bg-color);
    color: white;
    border-color: white;
}

/* Blog Article Styles */
.blog-article {
    padding: 50px 0 100px;
}

.article-header {
    text-align: center;
    margin-bottom: 50px;
}

.article-meta {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.article-meta span {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.category {
    background-color: var(--primary-color);
    color: white !important;
    padding: 4px 12px;
    border-radius: 4px;
    font-weight: 600;
}

.article-header h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.article-intro {
    font-size: 1.2rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.article-content {
    line-height: 1.8;
    font-size: 1.05rem;
}

.article-content h2 {
    font-size: 2rem;
    margin: 50px 0 20px;
    color: var(--secondary-color);
}

.article-content h3 {
    font-size: 1.5rem;
    margin: 30px 0 15px;
    color: var(--primary-color);
}

.article-content p {
    margin-bottom: 20px;
}

.article-content ul {
    margin: 20px 0;
    padding-left: 0;
}

.article-content ul li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
    list-style: none;
}

.article-content ul li:before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.article-content pre {
    background-color: var(--bg-secondary);
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 20px 0;
    border-left: 4px solid var(--primary-color);
}

.article-content code {
    color: var(--primary-color);
    font-family: 'Courier New', monospace;
}

.article-footer {
    margin-top: 60px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.tag {
    background-color: var(--bg-secondary);
    color: var(--text-muted);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.share {
    margin-top: 30px;
}

.share p {
    margin-bottom: 15px;
    font-weight: 600;
}

.share-btn {
    display: inline-block;
    background-color: var(--bg-secondary);
    padding: 8px 16px;
    border-radius: 4px;
    margin-right: 10px;
    margin-bottom: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.share-btn:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .hamburger {
        display: block;
        z-index: 1001;
    }

    .nav-links {
        position: fixed;
        right: 0px;
        height: 100vh;
        top: 0;
        background-color: var(--bg-color);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        width: 100%;
        transform: translateX(100%);
        transition: transform 0.5s ease-in;
        z-index: 1000;
    }

    .nav-links.active {
        transform: translateX(0%);
    }

    .nav-links li {
        opacity: 0;
        margin: 20px 0;
    }

    .nav-links.active li {
        opacity: 1;
        transition: opacity 0.5s ease-in 0.3s;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .trust-badges {
        flex-direction: column;
        gap: 10px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 10px;
    }
}

/* ===== Trust Badges (SEO Boost) ===== */
.trust-badges {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 25px 0;
    flex-wrap: wrap;
}

.trust-badges .badge {
    background: rgba(255, 51, 51, 0.1);
    border: 1px solid var(--primary-color);
    color: var(--secondary-color);
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

/* ===== Section Intro ===== */
.section-intro {
    text-align: center;
    max-width: 700px;
    margin: -1.5rem auto 2.5rem;
    color: var(--text-muted);
    font-size: 1.1rem;
}

.testimonials-intro {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* ===== Enhanced FAQ Styling ===== */
.faq-item strong {
    color: var(--primary-color);
}

/* ===== Zones CTA ===== */
.zones-cta {
    color: var(--text-muted);
    font-size: 1.05rem;
}

.zones-cta strong {
    color: var(--secondary-color);
}