.epreuve-hero {
    background-image: url('../img/epreuve.webp');
    background-size: cover;
    background-position: center;
    height: 60vh;
    position: relative;
}

.epreuve-hero::before {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
}

.epreuve-hero .container {
    position: relative;
    z-index: 1;
}

/* NAVBAR STYLES */

.navbar {
    padding: 0.8rem 1rem;
    font-size: 1rem;
    background-color: #1c1c1c !important;
}

.navbar-brand {
    font-size: 1.5rem;
    letter-spacing: 1px;
    color: #fff;
}

.nav-custom {
    color: #ddd !important;
    margin: 0 10px;
    padding: 8px 15px;
    border-radius: 30px;
    transition: all 0.3s ease;
}

.nav-custom:hover,
.nav-custom.active {
    background-color: #0d6efd;
    color: white !important;
    transform: scale(1.05);
}

.navbar-toggler {
    border-color: #fff;
}

/* FOOTER PROPRE ET ÉLÉGANT */
.footer-pro {
    background-color: #1c1c1e;
    color: #ccc;
    font-size: 0.95rem;
    border-top: 2px solid #0d6efd;
}

.social-icons .social-link {
    display: inline-block;
    margin: 0 10px;
    font-size: 1.3rem;
    color: #ccc;
    transition: transform 0.3s ease, color 0.3s ease;
}

.social-icons .social-link:hover {
    color: #0d6efd;
    transform: translateY(-3px);
}

.footer-mention {
    color: #aaa;
    font-size: 0.85rem;
    text-decoration: underline;
    transition: color 0.3s ease;
}

.footer-mention:hover {
    color: #fff;
}
.stage-hero {
    background: url('../img/backgroudIA.jpg') center/cover no-repeat;
    height: 60vh;
    position: relative;
}

.stage-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.6);
}

.stage-hero .container {
    position: relative;
    z-index: 2;
}

.stage-content h2 {
    font-weight: 700;
    font-size: 2.2rem;
}

.stage-card {
    background-color: #f8f9fa;
    border-radius: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-left: 6px solid #0d6efd;
}

.stage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.stage-card h4 {
    font-weight: 600;
}

.stage-card ul li {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.stage-card .btn {
    transition: background-color 0.3s ease;
}