.contact-container {
    max-width: 600px;
    margin: 50px auto;
    padding: 30px;
    background: var(--blanc, #ffffff);
    border-radius: 15px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    border-top: 5px solid var(--vert-principal, #28a745);
}

.contact-header {
    text-align: center;
    margin-bottom: 30px;
}

.contact-header h1 {
    color: var(--vert-principal, #28a745);
    font-weight: 800;
}

.contact-form label {
    font-weight: bold;
    color: #444;
    margin-bottom: 5px;
}

.contact-form .form-control {
    border-radius: 8px;
    border: 1px solid #ddd;
    padding: 12px;
}

.contact-form .form-control:focus {
    border-color: var(--vert-principal, #28a745);
    box-shadow: 0 0 0 0.25 margin rgba(40, 167, 69, 0.25);
}

.btn-send {
    width: 100%;
    background-color: var(--vert-principal, #28a745);
    color: white;
    border: none;
    padding: 12px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.2s;
}

.btn-send:hover {
    background-color: #218838;
    transform: translateY(-2px);
}