/* Form Styling */
#dns-propagation-form {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 1em;
}

#dns-propagation-form input[type="text"],
#dns-propagation-form select {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 8px;
    flex: 1 1 250px;
    font-size: 16px;
}

#dns-propagation-form button {
    padding: 10px 20px;
    background-color: #0055ff;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.2s ease;
}

#dns-propagation-form button:hover {
    background-color: #003fcc;
}

/* Table Styling */
#dns-results table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
    font-family: system-ui, sans-serif;
    font-size: 15px;
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 10px;
    overflow: hidden;
}

#dns-results thead {
    background-color: #f4f6f8;
}

#dns-results th, #dns-results td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

#dns-results tr:last-child td {
    border-bottom: none;
}

/* Spinner */
.dpc-spinner {
    width: 32px;
    height: 32px;
    margin: 20px auto;
    border: 4px solid #ccc;
    border-top: 4px solid #0055ff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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