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

:root {
    --primary-color: #2c3e50;
    --secondary-color: #d4a574;
    --accent-color: #8b7355;
    --light-bg: #f8f9fa;
    --dark-bg: #1a1a1a;
    --text-dark: #333;
    --text-light: #666;
    --white: #ffffff;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.8;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Navigation Premium */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 0.5rem 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.12);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: -0.5px;
    position: relative;
}

.logo::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 30%;
    height: 3px;
    background: var(--secondary-color);
}

.nav-menu {
    display: flex;
    gap: 3rem;
    list-style: none;
}

.nav-menu a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

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

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

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

/* Hero Section Premium */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, rgba(44, 62, 80, 0.95), rgba(44, 62, 80, 0.85)),
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800"><rect fill="%232c3e50" width="1200" height="800"/></svg>');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(212, 165, 116, 0.1) 0%, transparent 50%);
}

.hero-content {
    text-align: center;
    color: var(--white);
    max-width: 900px;
    padding: 2rem;
    position: relative;
    z-index: 1;
    animation: fadeInUp 1s ease-out;
}

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

.hero h1 {
    font-size: 4.5rem;
    font-weight: 300;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    letter-spacing: -1px;
}

.hero h1 strong {
    font-weight: 700;
    color: var(--secondary-color);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    font-weight: 300;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
}

.cta-button {
    display: inline-block;
    padding: 1.2rem 3rem;
    background: var(--secondary-color);
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 50px;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(212, 165, 116, 0.3);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(212, 165, 116, 0.4);
    background: var(--accent-color);
}

/* Sections */
.section {
    padding: 8rem 4rem;
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    margin-bottom: 5rem;
}

.section-title h2 {
    font-size: 3rem;
    font-weight: 300;
    color: var(--primary-color);
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.section-title .subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    font-weight: 300;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: var(--secondary-color);
    margin: 2rem auto 0;
}

/* Grid Layouts */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
}

.feature-card {
    background: var(--white);
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    color: var(--white);
}

.feature-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 1rem;
}

/* Content Sections */
.content-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
    margin: 5rem 0;
}

.content-text h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 300;
    letter-spacing: -0.5px;
}

.content-text p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.9;
    font-size: 1.05rem;
}

.content-image {
    background: var(--light-bg);
    border-radius: 20px;
    min-height: 400px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.content-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(212, 165, 116, 0.1), transparent);
}

/* Stats Section */
.stats-section {
    background: var(--primary-color);
    color: var(--white);
    padding: 6rem 4rem;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 4rem;
    max-width: 1200px;
    margin: 4rem auto 0;
}

.stat-item h4 {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.stat-item p {
    font-size: 1.1rem;
    font-weight: 300;
    opacity: 0.9;
}

/* Process Steps */
.process-steps {
    display: grid;
    gap: 3rem;
    margin-top: 4rem;
}

.step {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2rem;
    align-items: start;
    padding: 2rem;
    background: var(--light-bg);
    border-radius: 15px;
    transition: var(--transition);
}

.step:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.step-content p {
    color: var(--text-light);
    line-height: 1.8;
}

/* Footer Premium */
.footer {
    background: var(--dark-bg);
    color: var(--white);
    padding: 5rem 4rem 2rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
    font-weight: 600;
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    line-height: 2;
    text-decoration: none;
    display: block;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    max-width: 1400px;
    margin: 0 auto;
}

/* Responsive Design */
@media (max-width: 968px) {
    .nav-container {
        padding: 1rem 2rem;
    }
    
    .nav-menu {
        gap: 1.5rem;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .section {
        padding: 5rem 2rem;
    }
    
    .content-section {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
}

@media (max-width: 640px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Animations supplémentaires */
.fade-in {
    animation: fadeIn 1s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.slide-in-left {
    animation: slideInLeft 0.8s ease-out;
}

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

/* Styles pour les listes */
.custom-list {
    list-style: none;
    padding-left: 0;
}

.custom-list li {
    padding: 0.8rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--text-light);
    line-height: 1.8;
}

.custom-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Espacement des paragraphes */
.text-content p {
    margin-bottom: 1.5rem;
}

.text-content p:last-child {
    margin-bottom: 0;
}