.dns-app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.dns-navbar .navbar-brand {
    letter-spacing: 0.02em;
}

.hero-panel {
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
}

.summary-pass .display-6 {
    color: #198754;
}

.summary-warn .display-6 {
    color: #fd7e14;
}

.summary-fail .display-6 {
    color: #dc3545;
}

.summary-info .display-6 {
    color: #6c757d;
}

.dns-result-card .badge {
    min-width: 4rem;
    text-align: center;
}

.dns-detail-table th {
    font-weight: 600;
    color: #495057;
}

.raw-block {
    max-height: 320px;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

.footer-bar {
    margin-top: auto;
}

@media (max-width: 576px) {
    .dns-navbar .navbar-text {
        display: none;
    }
}