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

:root {
    --primary: #7c9885;
    --secondary: #b5c9ba;
    --accent: #e8b4b8;
    --dark: #2c3e50;
    --light: #f8f9fa;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark);
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary);
}

.logo i {
    font-size: 1.8rem;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: color 0.3s;
}

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

.btn-primary, .btn-secondary {
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

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

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

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

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

.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.burger span {
    width: 25px;
    height: 3px;
    background: var(--dark);
    transition: 0.3s;
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(124, 152, 133, 0.9), rgba(181, 201, 186, 0.8)),
                url('https://images.unsplash.com/photo-1506126613408-eca07ce68773?w=1920&q=80') center/cover;
    text-align: center;
    color: white;
    padding: 2rem;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Cours */
.cours {
    padding: 5rem 2rem;
    background: var(--light);
}

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

.section-subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 3rem;
}

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

.cours-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.cours-card:hover {
    transform: translateY(-5px);
}

.cours-image {
    height: 250px;
    position: relative;
}

.cours-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.cours-badge.popular {
    background: var(--accent);
    color: white;
}

.cours-info {
    padding: 2rem;
}

.cours-info h3 {
    color: var(--primary);
    margin-bottom: 1rem;
}

.cours-details {
    display: flex;
    gap: 1.5rem;
    margin: 1.5rem 0;
    list-style: none;
    color: #666;
}

/* Professeurs */
.professeurs {
    padding: 5rem 2rem;
}

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

.prof-card {
    text-align: center;
}

.prof-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    overflow: hidden;
    border: 5px solid var(--secondary);
}

.prof-specialite {
    color: var(--primary);
    font-weight: 600;
    margin: 0.5rem 0;
}

.prof-certifs {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1rem;
}

.prof-certifs span {
    background: var(--light);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

/* Tarifs */
.tarifs {
    padding: 5rem 2rem;
    background: var(--light);
}

.tarifs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.tarif-card {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    position: relative;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.tarif-card.featured {
    border: 3px solid var(--primary);
    transform: scale(1.05);
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-weight: 600;
}

.tarif-card .price {
    font-size: 3rem;
    color: var(--primary);
    font-weight: bold;
    margin: 1rem 0;
}

.tarif-card ul {
    list-style: none;
    margin: 2rem 0;
    text-align: left;
}

.tarif-card ul li {
    padding: 0.5rem 0;
}

.tarif-card ul i {
    color: var(--primary);
    margin-right: 0.5rem;
}

/* Contact */
.contact {
    padding: 5rem 2rem;
}

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

.info-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary);
}

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

.contact-form h3 {
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.contact-form input,
.contact-form textarea,
.contact-form select {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: inherit;
}

.contact-form button {
    width: 100%;
    padding: 1rem;
    border: none;
    cursor: pointer;
}

/* Footer */
.footer {
    background: var(--dark);
    color: white;
    padding: 3rem 2rem 1rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: 0.3s;
}

.social-links a:hover {
    background: var(--secondary);
}

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .burger {
        display: flex;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .cours-grid,
    .professeurs-grid,
    .tarifs-grid {
        grid-template-columns: 1fr;
    }
}