* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
}

body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #135aae, #2f80ed);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* container */
.wrapper {
    width: 100%;
    padding: 20px;
}

/* carte */
.card {
    background: white;
    max-width: 500px;
    width: 100%;
    margin: auto;
    padding: 35px 30px;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

/* titre */
.card h1 {
    font-size: 32px;
    color: #135aae;
    margin-bottom: 10px;
}

.subtitle {
    color: #666;
    margin-bottom: 25px;
    font-size: 15px;
}

/* champs */
.form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
}

textarea,
input,
select {
    width: 100%;
    padding: 14px;
    border-radius: 12px;
    border: 1px solid #ddd;
    font-size: 15px;
    font-family: 'Roboto', sans-serif;
    transition: 0.3s;
}

/* textarea */
textarea {
    min-height: 120px;
    resize: vertical;
}

/* focus */
textarea:focus,
input:focus,
select:focus {
    outline: none;
    border-color: #135aae;
    box-shadow: 0 0 0 3px rgba(19, 90, 174, 0.1);
}

/* label */
label {
    font-size: 14px;
    margin-bottom: 6px;
    color: #333;
}

/* hint */
.hint {
    font-size: 12px;
    color: #888;
    margin-top: 5px;
}

/* bouton */
.btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 50px;
    background: linear-gradient(135deg, #135aae, #2f80ed);
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

/* mobile */
@media (max-width: 500px) {
    .card {
        padding: 25px 20px;
    }

    .card h1 {
        font-size: 26px;
    }
}


.btn-retour {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 25px;
    padding: 10px 16px;
    background: #f1f1f1;
    color: #333;
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    transition: 0.3s ease;
}

.btn-retour:hover {
    background: #222;
    color: #fff;
}