* { box-sizing: border-box; }
body { margin: 0; padding: 40px 15px; font-family: Arial, Helvetica, sans-serif; background: #f5f5f7; color: #212529; }
.contact-card { max-width: 720px; margin: 0 auto; padding: 32px; background: #fff; border-radius: 6px; box-shadow: 0 1px 4px rgba(0,0,0,.08); }
h2 { margin: 0 0 30px; font-size: 28px; font-weight: 600; }
.form-group { display: flex; margin-bottom: 20px; }
.form-label { width: 25%; padding: 8px 15px 8px 0; font-size: 13px; font-weight: 600; letter-spacing: .5px; text-transform: uppercase; }
.form-control-container { width: 75%; }
.form-control { display: block; width: 100%; padding: 10px 12px; font-family: inherit; font-size: 15px; line-height: 1.5; color: #495057; background: #fff; border: 1px solid #ced4da; border-radius: 4px; outline: none; }
.form-control:focus { border-color: #80bdff; box-shadow: 0 0 0 .15rem rgba(0,123,255,.15); }
textarea.form-control { resize: vertical; min-height: 120px; }
.purpose-container { width: 75%; display: flex; flex-wrap: wrap; gap: 10px 16px; padding-top: 6px; }
.purpose-item { display: flex; align-items: center; gap: 6px; font-size: 14px; cursor: pointer; }
.purpose-item input { width: 16px; height: 16px; margin: 0; cursor: pointer; }
.button-container { width: 75%; margin-left: 25%; }
.submit-button { padding: 10px 24px; font-family: inherit; font-size: 17px; color: #fff; background: #007bff; border: 1px solid #007bff; border-radius: 4px; cursor: pointer; }
.submit-button:hover { background: #0069d9; }
.submit-button:disabled { background: #6c757d; border-color: #6c757d; cursor: not-allowed; }
.alert { margin-bottom: 25px; padding: 14px 16px; border-radius: 4px; font-size: 14px; line-height: 1.5; }
.alert-success { color: #155724; background: #d4edda; border: 1px solid #c3e6cb; }
.alert-danger { color: #721c24; background: #f8d7da; border: 1px solid #f5c6cb; }
.required { color: #dc3545; }
.hidden { display: none; }
.loading-text { display: none; margin-left: 10px; font-size: 14px; color: #666; }
@media (max-width: 600px) {
    body { padding: 0px 10px; }
    .contact-card { padding: 22px 18px; }
    h2 { font-size: 24px; }
    .form-group { display: block; }
    .form-label, .form-control-container, .purpose-container { width: 100%; }
    .form-label { display: block; padding: 0 0 6px; }
    .purpose-container { padding-top: 0; }
    .button-container { width: 100%; margin-left: 0; }
}