/* DNS Lookup Tool Styles */
.dns-lookup-container {
    max-width: 800px;
    margin: 20px 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.dns-lookup-form {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 8px;
    border: 1px solid #e9ecef;
    margin-bottom: 20px;
}

.dns-lookup-form h3 {
    margin: 0 0 20px 0;
    color: #333;
    font-size: 1.4em;
    font-weight: 600;
}

.dns-input-group {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.dns-domain-input {
    flex: 1;
    min-width: 200px;
    padding: 12px 15px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.dns-domain-input:focus {
    outline: none;
    border-color: #007cba;
    box-shadow: 0 0 0 2px rgba(0, 124, 186, 0.1);
}

.dns-lookup-btn {
    padding: 12px 25px;
    background: #007cba;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: background-color 0.3s ease;
    white-space: nowrap;
}

.dns-lookup-btn:hover {
    background: #005a87;
}

.dns-lookup-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.dns-loading {
    text-align: center;
    padding: 15px;
    color: #666;
    font-style: italic;
}

.dns-loading span {
    display: inline-block;
    padding: 10px 20px;
    background: #e3f2fd;
    border-radius: 20px;
    border: 1px solid #bbdefb;
}

.dns-results {
    background: white;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    overflow: hidden;
}

.dns-results h4 {
    margin: 0;
    padding: 20px 25px;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
    color: #333;
    font-size: 1.3em;
    font-weight: 600;
}

.dns-results-grid {
    padding: 25px;
}

.dns-record-section {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #f0f0f0;
}

.dns-record-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.dns-record-section h5 {
    margin: 0 0 15px 0;
    color: #333;
    font-size: 1.1em;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.record-type {
    background: #007cba;
    color: white;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.9em;
    margin-right: 10px;
    font-weight: 600;
}

.dns-record-section ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.dns-record-section li {
    padding: 8px 15px;
    background: #f8f9fa;
    margin-bottom: 5px;
    border-radius: 4px;
    border-left: 3px solid #007cba;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9em;
}

.dns-record-section li:last-child {
    margin-bottom: 0;
}

.txt-record {
    word-break: break-all;
    line-height: 1.4;
}

.soa-info {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 4px;
    border-left: 3px solid #007cba;
}

.soa-info p {
    margin: 0 0 8px 0;
    font-size: 0.9em;
}

.soa-info p:last-child {
    margin-bottom: 0;
}

.additional-info {
    background: #e8f5e8;
    padding: 15px;
    border-radius: 4px;
    border-left: 3px solid #28a745;
}

.additional-info p {
    margin: 0 0 8px 0;
    font-size: 0.9em;
}

.additional-info p:last-child {
    margin-bottom: 0;
}

.dns-error {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: 5px;
    padding: 15px;
    color: #721c24;
    margin-top: 15px;
}

.dns-error p {
    margin: 0;
}

.no-records {
    text-align: center;
    color: #666;
    font-style: italic;
    padding: 40px 20px;
}

/* 반응형 디자인 */
@media (max-width: 600px) {
    .dns-input-group {
        flex-direction: column;
    }
    
    .dns-domain-input {
        min-width: auto;
        width: 100%;
    }
    
    .dns-lookup-btn {
        width: 100%;
    }
    
    .dns-lookup-form, 
    .dns-results-grid {
        padding: 15px;
    }
    
    .dns-results h4 {
        padding: 15px;
        font-size: 1.1em;
    }
    
    .record-type {
        font-size: 0.8em;
        padding: 3px 8px;
    }
}