/* Styles généraux */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

/* Navigation */
.menu {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #333;
    padding: 10px 20px;
}

.menu a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
    font-size: 18px;
}

/* Mode sombre/clair */
.slider-container {
    display: flex;
    align-items: center;
}

/* Contenu principal */
.header {
    text-align: center;
    padding: 50px 20px;
}

.buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 20px 0;
}

button {
    padding: 10px 20px;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

.login-btn {
    background-color: #008CBA;
    color: white;
}

.signup-btn {
    background-color: #4CAF50;
    color: white;
}

/* Cards de fonctionnalités */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.card {
    background: white;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
}

/* Modale */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background: white;
    padding: 20px;
    margin: 15% auto;
    width: 90%;
    max-width: 400px;
    border-radius: 5px;
}

.close {
    float: right;
    font-size: 28px;
    cursor: pointer;
}

/* Responsive */
@media (max-width: 768px) {
    .menu {
        flex-direction: column;
        text-align: center;
    }

    .menu a {
        display: block;
        padding: 10px 0;
    }

    .buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 30px 10px;
    }

    .buttons button {
        width: 100%;
        max-width: 300px;
    }

    .modal-content {
        width: 95%;
    }
}