body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle, #1a1a2e, #000);
    font-family: Arial, sans-serif;
    color: #f0f0f0;
}

.carte {
    background: rgba(20, 20, 30, 0.95);
    border: 2px solid #ffe81f;
    border-radius: 12px;
    padding: 30px;
    width: 400px;
    box-shadow: 0 0 25px #ffe81f;
}

h1 {
    color: #ffe81f;
    text-align: center;
    margin-top: 0;
}

.citation {
    text-align: center;
    font-style: italic;
}

label {
    display: block;
    margin-top: 12px;
}

input[type="text"],
input[type="password"],
textarea {
    width: 100%;
    padding: 8px;
    box-sizing: border-box;
    border: 1px solid #555;
    border-radius: 6px;
    background: #222;
    color: #fff;
}

fieldset {
    margin-top: 15px;
    border: 1px solid #555;
    border-radius: 6px;
}

.choix {
    display: inline-block;
    margin-right: 15px;
}

input[type="submit"] {
    margin-top: 20px;
    width: 100%;
    padding: 12px;
    background: #b30000;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-weight: bold;
    cursor: pointer;
}

input[type="submit"]:hover {
    background: #e60000;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

th, td {
    border: 1px solid #555;
    padding: 8px;
    text-align: left;
}

th {
    background: #000;
    color: #ffe81f;
}