.required {
    color: #e74c3c;
}

#errorAlert {
  display: none;
}


#submitBtn {
    background-color: #ed7c13;
    color: whitesmoke;
    font-weight: bolder;
    transition: background 0.3s ease;
}

#submitBtn:hover {
    background: linear-gradient(10deg, #f2b339 10%, #ed7c13 100%);
    color: whitesmoke;
    transform: translateY(-2px);
    box-shadow: 0 6px 14px gray;
}

.success-message {
    display: none;
    background: #d4edda;
    color: #155724;
    padding: 20px;
    border-radius: 6px;
    text-align: center;
    margin-bottom: 20px;
}

.success-message h2 {
    margin-bottom: 10px;
    color: #155724;
}

.loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
    margin-right: 8px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}