/* Reset et variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-red: #EF4444;
    --primary-blue: #3B82F6;
    --dark: #1F2937;
    --light-gray: #F3F4F6;
    --medium-gray: #6B7280;
    --white: #FFFFFF;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--white);
}

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

/* Header */
.header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo img {
    height: 60px;
    width: auto;
}

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

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

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

.lang-switch {
    padding: 8px 16px;
    border: 2px solid var(--primary-blue);
    border-radius: 5px;
    color: var(--primary-blue);
    font-weight: 600;
}

.lang-switch:hover {
    background-color: var(--primary-blue);
    color: var(--white);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-red) 100%);
    color: var(--white);
    padding: 100px 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.95;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 15px 35px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

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

section h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 20px;
    color: var(--dark);
}

.section-intro {
    text-align: center;
    font-size: 1.2rem;
    color: var(--medium-gray);
    max-width: 800px;
    margin: 0 auto 50px;
}

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

.formations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.formation-card {
    background-color: var(--white);
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
}

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

.formation-card.featured {
    border: 3px solid var(--primary-blue);
}

.badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background-color: var(--primary-red);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.card-header h3 {
    font-size: 1.8rem;
    color: var(--dark);
}

.level {
    background-color: var(--light-gray);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--medium-gray);
}

.card-body .description {
    font-size: 1.1rem;
    color: var(--medium-gray);
    margin-bottom: 20px;
}

.features {
    list-style: none;
    margin-bottom: 30px;
}

.features li {
    padding: 10px 0;
    padding-left: 25px;
    position: relative;
    color: var(--dark);
}

.features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 2px solid var(--light-gray);
}

.duration {
    color: var(--medium-gray);
}

.price {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.formations-note {
    margin-top: 50px;
    padding: 30px;
    background-color: var(--white);
    border-left: 4px solid var(--primary-blue);
    border-radius: 8px;
}

.formations-note p {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    margin-top: 50px;
    align-items: center;
}

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--dark);
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--medium-gray);
    line-height: 1.8;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.stat {
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-red) 100%);
    border-radius: 12px;
    color: var(--white);
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.stat-label {
    display: block;
    font-size: 1rem;
    opacity: 0.9;
}

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

.contact-form {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

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

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--light-gray);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

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

.contact-form .btn {
    width: 100%;
    margin-top: 10px;
}

.form-message {
    margin-top: 20px;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    display: none;
}

.form-message.success {
    background-color: #10B981;
    color: var(--white);
    display: block;
}

.form-message.error {
    background-color: var(--primary-red);
    color: var(--white);
    display: block;
}

/* Footer */
.footer {
    background-color: var(--dark);
    color: var(--white);
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-logo {
    height: 50px;
    margin-bottom: 15px;
}

.footer-section h4 {
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.footer-section p {
    margin-bottom: 10px;
    color: var(--medium-gray);
}

.footer-section a {
    color: var(--primary-blue);
    text-decoration: none;
}

.footer-section a:hover {
    text-decoration: underline;
}

.social-link {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--primary-blue);
    color: var(--white);
    border-radius: 5px;
    text-decoration: none;
    transition: background-color 0.3s;
}

.social-link:hover {
    background-color: var(--primary-red);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--medium-gray);
    color: var(--medium-gray);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .nav {
        gap: 15px;
    }

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

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

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

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 0;
    }

    section {
        padding: 50px 0;
    }

    section h2 {
        font-size: 2rem;
    }

    .logo img {
        height: 50px;
    }

    .contact-form {
        padding: 25px;
    }
}