.alert {
    padding: 0.875rem 1.25rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    border: 1px solid;
}

.alert-error {
    background: var(--error-bg);
    border-color: var(--error-border);
    color: var(--error-text);
}

.results-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-strong);
    border-radius: 0.75rem;
    overflow: hidden;
}

.results-header {
    background: var(--bg-page);
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-strong);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.results-header .domain-badge {
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent-blue-dim);
}

.results-header .ns-count {
    margin-left: auto;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.ns-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.ns-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border-strong);
    color: var(--text-primary);
}

.ns-list li:last-child {
    border-bottom: none;
}

.ns-list li:nth-child(odd) {
    background: var(--results-row-alt);
}

.ns-host {
    font-family: 'SF Mono', 'Fira Code', monospace;
    color: var(--info-text);
}

/* ── Expandable NS rows ───────────────────────────────────── */
.ns-expand-trigger {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    color: var(--info-text);
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.9rem;
    text-align: left;
    transition: color 0.15s;
    user-select: none;
}

.ns-expand-trigger:hover { color: var(--text-mono); }

.ns-expand-trigger .ns-caret {
    font-size: 0.6rem;
    color: var(--text-dimmed);
    transition: transform 0.15s, color 0.15s;
    flex-shrink: 0;
    margin-top: 0.05rem;
}

.ns-expand-trigger[aria-expanded="true"] .ns-caret {
    transform: rotate(90deg);
    color: var(--text-muted);
}

.ns-expand-body {
    display: none;
    padding: 0.3rem 0 0 1.1rem;
}

.ns-expand-body.open { display: block; }

.ns-ip-line {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.7;
    display: block;
}

.ns-ip-line.loading { color: var(--text-dimmed); font-style: italic; }
.ns-ip-line.error   { color: var(--error-text); font-style: italic; }
.ns-ip-line.empty   { color: var(--text-dimmed); font-style: italic; }