html, body {
    margin: 0;
    padding: 0;
    height: 100%;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1;
    padding: 20px;
    box-sizing: border-box;
}

.footer-custom {
    background-color: #2a9fd8;
    border-top-left-radius: 15px;
    border-top-right-radius: 15px;
    box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.1);
    padding: 20px 0; /* Padding vertical raisonnable */
    margin-top: auto; /* Très important pour pousser le footer en bas automatiquement */
    width: 100%;
}


.footer-custom a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-custom a:hover {
    color: #f0f8ff;
}

/* Le reste de ton CSS reste inchangé */

/* Importation de la police Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;700&display=swap');

/* Variables de couleurs */
:root {
    --primary-color: #3fbbef;
    --secondary-color: #2a9fd8;
    --background-color: #f0f8ff;
    --text-color: #333;
    --white: #ffffff;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* Jumbotron modernisé */
.custom-jumbotron {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-color));
    color: var(--white);
    padding: 4rem 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
    animation: fadeIn 2s;
}

.custom-jumbotron .custom-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.custom-jumbotron .lead {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.custom-jumbotron .btn {
    margin: 0.5rem;
    padding: 0.75rem 2rem;
    font-size: 1rem;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.custom-jumbotron .custom-btn {
    background-color: var(--white);
    color: var(--primary-color);
    border: 2px solid var(--white);
}

.custom-jumbotron .custom-btn:hover {
    background-color: transparent;
    color: var(--white);
}

/* Cartes modernisées */
.card {
    border: none;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.card-body {
    padding: 2rem;
    background-color: var(--white);
    border-radius: 15px;
}

/* Listes modernisées */
.list-group-item {
    border: none;
    margin-bottom: 10px;
    padding: 1.5rem;
    border-radius: 10px;
    background-color: var(--white);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.list-group-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* Navbar personnalisée */
.navbar-custom {
    background-color: #3fbbef;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.navbar-custom .navbar-brand,
.navbar-custom .nav-link {
    color: white !important;
}

.navbar-custom .nav-link:hover {
    color: #f0f8ff !important;
}

/* Logo Navbar */
.navbar-brand .logo {
    height: 50px;
    width: auto;
    transition: transform 0.3s ease;
}

.navbar-brand .logo:hover {
    transform: scale(1.1);
}

/* Animation fade-in */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }a
}