* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
}

/* Banderole bleue */
.banner {
    height: 100vh;
    background: linear-gradient(135deg, #0f4c81, #1e88e5);
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Carré central */
.card {
    background: #ffffff;
    color: #333;
    width: 380px;
    padding: 35px;
    text-align: center;
    border-radius: 12px;

    /* Ombre */
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.25);
}

.card h1 {
    margin: 0;
    color: #1e88e5;
}

.card h2 {
    margin-top: 5px;
    font-weight: normal;
    color: #555;
}

.card p {
    font-size: 14px;
    margin: 20px 0;
}

button {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 8px;
    background: #1e88e5;
    color: #fff;
    font-size: 15px;
    cursor: pointer;
    transition: 0.3s;
}

button:hover {
    background: #1565c0;
}

/* rien à changer au reste */

.buttons button {
    margin: 8px 0;
}


small {
    display: block;
    margin-top: 15px;
    font-size: 12px;
    color: #777;
}