/* Bouton Accès privé */
.private-btn {
    display: inline-block;
    padding: 0.75em 2em;
    background: #c0392b;
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    font-size: 1.1em;
    transition: background 0.2s;
    font-weight: bold;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.private-btn:hover, .private-btn:focus {
    background: #e74c3c;
    color: #fff;
}

div[style*="text-align:center"] {
    text-align: center;
    margin: 2em 0;
}
body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #f7f7f7;
    margin: 0;
    padding: 0;
    color: #222;
}

.header {
    background: #2d3e50;
    color: #fff;
    padding: 2rem 0 1rem 0;
    text-align: center;
}

.header h1 {
    margin: 0;
    font-size: 2.5rem;
    letter-spacing: 2px;
}

.header p {
    margin: 0.5rem 0 0 0;
    font-size: 1.2rem;
    font-weight: 300;
}

.main {
    max-width: 1100px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.activities {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
}

.activity {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
    width: 220px;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
    overflow: hidden;
}

.activity:hover {
    transform: translateY(-6px) scale(1.03);
    box-shadow: 0 6px 24px rgba(44,62,80,0.13);
}

.activity img {
    width: 100%;
    height: 120px;
    object-fit: contain;
    border-bottom: 1px solid #eee;
}

.activity h2 {
    font-size: 1.1rem;
    margin: 1rem 0 1rem 0;
    color: #2d3e50;
    font-weight: 500;
}

footer {
    text-align: center;
    color: #888;
    font-size: 0.95rem;
    padding: 1.5rem 0 1rem 0;
}

.private-btn {
    border: None;
}