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

:root {
    --primary-color: #5B7FE8;
    --secondary-color: #7F6FD9;
    --accent-color: #4DB8E8;
    --light-blue: #A8C5FF;
    --dark-blue: #2D4A8C;
    --text-dark: #1a1a1a;
    --text-light: #666;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color));
}

html {
    scroll-behavior: smooth;
}

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

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

header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    height: 50px;
    width: auto;
}

nav {
    display: flex;
    gap: 30px;
}

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

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

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

nav a:hover::after {
    width: 100%;
}

.hero {
    background: var(--gradient);
    color: var(--white);
    padding: 100px 20px;
    text-align: center;
}

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

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    line-height: 1.3;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.95;
}

.cta-button {
    display: inline-block;
    background-color: var(--white);
    color: var(--primary-color);
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.section {
    padding: 80px 20px;
}

.section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: var(--text-dark);
    position: relative;
}

.section h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient);
    border-radius: 2px;
}

.formation-info {
    background-color: var(--light-gray);
}

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

.info-card {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.info-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(91, 127, 232, 0.2);
}

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

.info-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.info-card p {
    color: var(--text-light);
    font-size: 1.1rem;
}

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

.day-card {
    background-color: var(--white);
    border-radius: 15px;
    margin-bottom: 30px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.day-card:hover {
    box-shadow: 0 8px 25px rgba(91, 127, 232, 0.15);
}

.day-header {
    background: var(--gradient);
    color: var(--white);
    padding: 25px 30px;
}

.day-header h3 {
    font-size: 1.5rem;
}

.day-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    padding: 30px;
}

.half-day h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--light-blue);
}

.half-day ul {
    list-style: none;
    padding-left: 0;
}

.half-day li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
    color: var(--text-dark);
}

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

.qualiopi-section {
    background: linear-gradient(135deg, #f0f4ff 0%, #e8f0ff 100%);
}

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

.qualiopi-text {
    background-color: var(--white);
    padding: 50px;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.qualiopi-badge {
    max-width: 300px;
    height: auto;
    margin: 20px 0;
    display: block;
}

.qualiopi-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-dark);
}

.qualiopi-text ul {
    margin: 20px 0 30px 30px;
}

.qualiopi-text li {
    margin-bottom: 12px;
    font-size: 1.05rem;
    color: var(--text-dark);
}

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

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

.contact-card {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.contact-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(91, 127, 232, 0.3);
}

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

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

.contact-card p {
    font-size: 1.1rem;
    line-height: 1.8;
}

.contact-card a {
    color: var(--white);
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.contact-card a:hover {
    opacity: 0.8;
}

footer {
    background-color: var(--white);
    color: var(--text-dark);
    padding: 50px 20px 20px;
    border-top: 1px solid #e0e0e0;
}

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

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

.footer-section h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

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

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: 15px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #e0e0e0;
    color: var(--text-light);
}

.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
}

.modal-content {
    position: relative;
    background-color: var(--white);
    margin: 2% auto;
    width: 90%;
    height: 90%;
    max-width: 1200px;
    border-radius: 10px;
    overflow: hidden;
}

.modal-content iframe {
    width: 100%;
    height: calc(100% - 50px);
}

.close {
    color: var(--text-dark);
    position: absolute;
    top: 10px;
    right: 25px;
    font-size: 35px;
    font-weight: bold;
    cursor: pointer;
    z-index: 2001;
    background-color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

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

@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 20px;
    }

    nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section {
        padding: 50px 20px;
    }

    .section h2 {
        font-size: 2rem;
    }

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

    .day-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

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

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

    .footer-logo {
        margin: 0 auto 15px;
    }

    .qualiopi-text {
        padding: 30px 20px;
    }

    .qualiopi-badge {
        max-width: 100%;
    }

    .modal-content {
        width: 95%;
        height: 85%;
        margin: 5% auto;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 20px;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .cta-button {
        padding: 12px 30px;
        font-size: 1rem;
    }

    .section h2 {
        font-size: 1.6rem;
    }

    .day-header h3 {
        font-size: 1.2rem;
    }

    .info-card,
    .contact-card {
        padding: 30px 20px;
    }
}