body {
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 10%, #764ba2 87%);
    margin: 0;
    padding: 0;
    color: #1a1a1a;
}
 
#header {
    background: linear-gradient(90deg, #0066ff 0%, #00ccff 100%);
    color: white;
    padding: 60px 30px;
    text-align: center;
    border-radius: 0 0 30px 30px;
}
 
#header h1 {
    font-size: 60px;
    font-weight: bold;
    margin: 0 0 20px 0;
}
 
#header p {
    font-size: 24px;
    margin: 0 0 30px 0;
}
 
.btn-retour {
    background-color: white;
    color: #0066ff;
    padding: 12px 30px;
    border-radius: 15px 15px 15px 15px;
    text-decoration: none;
    font-weight: bold;
    font-size: 18px;
}
 
.btn-retour:hover {
    background-color: #00ccff;
    color: white;
    transform: scale(1.1);
}
 
.hero-image {
    text-align: center;
    margin: 50px 0;
}
 
.hero-image img {
    width: 80%;
    max-width: 1000px;
    border-radius: 30px 30px 30px 30px;
    border: 6px solid #0066ff;
}
 
.section-info {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin: 50px 20px;
    flex-wrap: wrap;
}
 
.info-card {
    background-color: white;
    border-radius: 20px 20px 20px 20px;
    padding: 30px;
    width: 250px;
    text-align: center;
    border: 4px solid #0066ff;
}
 
.info-card:hover {
    transform: scale(1.05);
    border-color: #00ccff;
}
 
.info-card h3 {
    color: #0066ff;
    font-size: 22px;
    margin: 0 0 15px 0;
}
 
.info-card p {
    color: #555555;
    font-size: 16px;
    margin: 0;
    line-height: 1.6;
}
 
.section-principale {
    background-color: white;
    border-radius: 25px 25px 25px 25px;
    padding: 50px 60px;
    margin: 50px 100px;
    border: 4px solid #0066ff;
}
 
.section-principale h2 {
    color: #0066ff;
    font-size: 40px;
    margin: 0 0 20px 0;
    text-align: center;
}
 
.section-principale p {
    color: #555555;
    font-size: 18px;
    line-height: 1.8;
    text-align: justify;
}
 
.section-liste {
    background-color: white;
    border-radius: 25px 25px 25px 25px;
    padding: 50px 60px;
    margin: 50px 100px;
    border: 4px solid #0066ff;
}
 
.section-liste h2 {
    color: #0066ff;
    font-size: 36px;
    margin: 0 0 30px 0;
    text-align: center;
}
 
.section-liste ul {
    list-style: none;
    padding: 0;
}
 
.section-liste li {
    color: #555555;
    font-size: 18px;
    line-height: 2;
    padding-left: 30px;
    position: relative;
}
 
.section-liste li:before {
    content: "✓";
    color: #0066ff;
    font-size: 24px;
    font-weight: bold;
    position: absolute;
    left: 0;
}
 
.section-formations {
    background: linear-gradient(145deg, #ffffff 0%, #e6f2ff 100%);
    border-radius: 25px 25px 25px 25px;
    padding: 50px 60px;
    margin: 50px 100px;
    border: 4px solid #0066ff;
}
 
.section-formations h2 {
    color: #0066ff;
    font-size: 40px;
    margin: 0 0 20px 0;
    text-align: center;
}
 
.section-formations p {
    color: #555555;
    font-size: 18px;
    line-height: 1.8;
    text-align: center;
    margin: 15px 0;
}
 
.section-formations strong {
    color: #0066ff;
    font-weight: bold;
}
 
.section-pourquoi {
    background-color: white;
    border-radius: 25px 25px 25px 25px;
    padding: 50px 60px;
    margin: 50px 100px;
    border: 4px solid #0066ff;
}
 
.section-pourquoi h2 {
    color: #0066ff;
    font-size: 40px;
    margin: 0 0 20px 0;
    text-align: center;
}
 
.section-pourquoi > p {
    color: #555555;
    font-size: 20px;
    text-align: center;
    margin: 20px 0 40px 0;
}
 
.avantages-grid {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}
 
.avantage-card {
    background-color: #f5f8ff;
    border-radius: 20px 20px 20px 20px;
    padding: 30px;
    width: 250px;
    text-align: center;
    border: 3px solid #0066ff;
}
 
.avantage-card:hover {
    transform: scale(1.05);
    background-color: white;
}
 
.avantage-card h3 {
    color: #0066ff;
    font-size: 24px;
    margin: 0 0 15px 0;
}
 
.avantage-card p {
    color: #555555;
    font-size: 16px;
    line-height: 1.6;
}

.section-cta h2 {
    font-size: 44px;
    margin: 0 0 20px 0;
}
 
.section-cta p {
    font-size: 20px;
    margin: 0 0 30px 0;
    line-height: 1.6;
}
 
.btn-inscription {
    background-color: white;
    color: #0066ff;
    padding: 18px 40px;
    border-radius: 20px 20px 20px 20px;
    text-decoration: none;
    font-weight: bold;
    font-size: 22px;
    display: inline-block;
}
 
.btn-inscription:hover {
    background-color: #00ccff;
    color: white;
    transform: scale(1.1);
}
 
footer {
    background-color: white;
    color: #555555;
    text-align: center;
    padding: 30px;
    margin-top: 50px;
    border-top: 4px solid #0066ff;
}
 
footer a {
    color: #0066ff;
    text-decoration: none;
    font-weight: bold;
}
 
footer a:hover {
    text-decoration: underline;
}