/*
 * Network diagnostics custom style.
 * Designed for Bootstrap 5 responsive layout.
 */
:root {
    --tool-bg: #f5f7fb;
    --tool-card: #ffffff;
    --tool-text: #1d2733;
    --tool-muted: #6c7886;
    --tool-border: #dce3ec;
}

body {
    background: radial-gradient(circle at top left, #eef5ff 0, var(--tool-bg) 42%, #ffffff 100%);
    color: var(--tool-text);
    min-height: 100vh;
}

.hero-panel {
    border: 1px solid var(--tool-border);
    border-radius: 1.5rem;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 1rem 2.5rem rgba(31, 45, 61, 0.08);
}

.tool-card {
    border: 1px solid var(--tool-border);
    border-radius: 1.25rem;
    background: var(--tool-card);
    box-shadow: 0 0.75rem 1.75rem rgba(31, 45, 61, 0.06);
    height: 100%;
}

.tool-card .card-header {
    background: transparent;
    border-bottom: 1px solid var(--tool-border);
    font-weight: 700;
}

.kv-list {
    display: grid;
    gap: 0.65rem;
}

.kv-row {
    display: grid;
    grid-template-columns: minmax(130px, 34%) 1fr;
    gap: 0.75rem;
    align-items: start;
    padding-bottom: 0.55rem;
    border-bottom: 1px dashed #e6edf5;
}

.kv-row:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.kv-key {
    color: var(--tool-muted);
    font-size: 0.88rem;
    word-break: break-word;
}

.kv-value {
    font-weight: 600;
    word-break: break-word;
}

.small-pre,
.result-pre {
    background: #0f172a;
    color: #d9e6ff;
    border-radius: 1rem;
    padding: 1rem;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

.small-pre {
    max-height: 280px;
}

.result-pre {
    min-height: 260px;
    max-height: 560px;
}

.footer-box {
    border-top: 1px solid var(--tool-border);
    color: var(--tool-muted);
}

.badge-soft {
    background: #eef4ff;
    color: #315aa8;
    border: 1px solid #d7e5ff;
}

@media (max-width: 575.98px) {
    .container {
        padding-left: 0.85rem;
        padding-right: 0.85rem;
    }

    .hero-panel {
        border-radius: 1rem;
    }

    .hero-panel h1 {
        font-size: 1.55rem;
    }

    .action-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .action-grid .btn {
        width: 100%;
    }

    .kv-row {
        grid-template-columns: 1fr;
        gap: 0.2rem;
    }

    .result-pre {
        font-size: 0.78rem;
    }
}