/* ── Reset ────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Tokens ───────────────────────────────────────────── */
:root {
    --bg:           #0b0202;
    --bg-elev:      #130406;
    --bg-panel:     rgba(255,255,255,0.035);
    --crimson:      #e8324f;
    --crimson-dim:  rgba(232,50,79,0.15);
    --text:         #eaedf8;
    --text-soft:    #c4cbdf;
    --text-muted:   #8491b4;
    --text-dim:     #505a78;
    --ok:           #4ade80;
    --warn:         #fbbf24;
    --info:         #60a5fa;
    --num:          #f0a050;
    --val:          #7dd3a8;
    --cmt:          #475068;
    --hair:         rgba(255,255,255,0.08);
    --topbar-h:     40px;
    --sidebar-w:    196px;
}

/* ── Base ─────────────────────────────────────────────── */
html { scroll-behavior: smooth; }
body {
    font-family: 'JetBrains Mono', 'Fira Code', ui-monospace, 'Cascadia Code', monospace;
    background: var(--bg);
    color: var(--text);
    font-size: 13px;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}
a { color: var(--crimson); text-decoration: none; transition: color 0.15s; }
a:hover { color: #ff5570; }

/* ── Top bar ──────────────────────────────────────────── */
.topbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--topbar-h);
    background: var(--bg-elev);
    border-bottom: 1px solid var(--hair);
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 12px;
    z-index: 100;
}
.prompt { display: flex; align-items: center; font-size: 13px; user-select: none; }
.p-user   { color: var(--crimson); font-weight: 700; }
.p-at     { color: var(--text-dim); }
.p-host   { color: var(--text-soft); }
.p-colon  { color: var(--text-dim); }
.p-dir    { color: var(--info); }
.p-dollar { color: var(--crimson); margin-left: 3px; }
.p-cursor {
    display: inline-block;
    width: 9px; height: 15px;
    background: var(--crimson);
    margin-left: 6px;
    vertical-align: middle;
    animation: blink 1s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.topbar-meta {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 16px;
}
.asn-badge { font-size: 11px; color: var(--text-muted); letter-spacing: 0.04em; }
.topbar-links { display: flex; gap: 12px; font-size: 11px; }
.topbar-links a { color: var(--text-dim); }
.topbar-links a:hover { color: var(--text-muted); }

/* ── Contrast toggle ──────────────────────────────────── */
.contrast-toggle {
    display: flex; align-items: center; gap: 7px;
    font-size: 11px; color: var(--text-dim);
    cursor: pointer; user-select: none;
}
.contrast-toggle:hover { color: var(--text-muted); }
.toggle-track {
    position: relative; width: 28px; height: 15px;
    background: rgba(255,255,255,0.12);
    border-radius: 8px; transition: background 0.2s; flex-shrink: 0;
}
.toggle-track::after {
    content: ''; position: absolute;
    top: 2px; left: 2px; width: 11px; height: 11px;
    background: #fff; border-radius: 50%; transition: transform 0.2s;
}
.toggle-track.on { background: var(--crimson); }
.toggle-track.on::after { transform: translateX(13px); }

/* ── High contrast overrides ──────────────────────────── */
body.hc {
    --bg:        #000000;
    --bg-elev:   #0a0a0a;
    --bg-panel:  rgba(255,255,255,0.06);
    --text:      #ffffff;
    --text-soft: #f0f0f0;
    --text-muted:#cccccc;
    --text-dim:  #888888;
    --hair:      rgba(255,255,255,0.2);
    --cmt:       #777777;
}
body.hc a { color: #ff6680; }
body.hc a:hover { color: #ff99aa; }
body.hc .panel-body { border-color: rgba(255,255,255,0.2); }
body.hc .nav-item.active { background: rgba(255,255,255,0.1); border-left-color: #ff6680; }

/* ── Layout ───────────────────────────────────────────── */
.layout {
    display: grid;
    grid-template-columns: var(--sidebar-w) 1fr;
    margin-top: var(--topbar-h);
    min-height: calc(100vh - var(--topbar-h));
}

/* ── Sidebar ──────────────────────────────────────────── */
.sidebar {
    position: sticky;
    top: var(--topbar-h);
    height: calc(100vh - var(--topbar-h));
    overflow-y: auto;
    border-right: 1px solid var(--hair);
    background: var(--bg);
    padding: 18px 0 24px;
    display: flex;
    flex-direction: column;
}
.nav-group { margin-bottom: 2px; }
.nav-group-label {
    font-size: 10px; color: var(--text-dim);
    letter-spacing: 0.1em; text-transform: uppercase;
    padding: 10px 16px 4px;
}
.nav-item {
    display: block; padding: 5px 16px; font-size: 12px;
    color: var(--text-muted); border-left: 2px solid transparent;
    transition: color 0.12s, background 0.12s, border-color 0.12s;
}
.nav-item:hover { color: var(--text-soft); background: rgba(255,255,255,0.03); }
.nav-item.active {
    color: var(--text); border-left-color: var(--crimson);
    background: var(--crimson-dim);
}
.sidebar-sep { height: 1px; background: var(--hair); margin: 12px 16px; }
.sidebar-footer { margin-top: auto; }

/* ── Main ─────────────────────────────────────────────── */
.main { padding: 24px 36px 72px; max-width: 860px; min-width: 0; }

/* ── Notice ───────────────────────────────────────────── */
.notice {
    display: flex; align-items: flex-start; gap: 10px;
    background: rgba(251,191,36,0.06);
    border: 1px solid rgba(251,191,36,0.22);
    border-radius: 3px; padding: 10px 14px;
    margin-bottom: 24px; font-size: 12px;
    color: var(--text-soft); line-height: 1.5;
}
.notice-icon { color: var(--warn); flex-shrink: 0; margin-top: 1px; }

/* ── Panel ────────────────────────────────────────────── */
.panel { margin-bottom: 28px; scroll-margin-top: calc(var(--topbar-h) + 16px); }
.panel-head {
    display: flex; align-items: center; gap: 5px;
    font-size: 11px; color: var(--text-dim);
    margin-bottom: 8px; white-space: nowrap; overflow: hidden;
}
.ph-sep   { color: var(--text-dim); }
.ph-path  { color: var(--text-soft); font-weight: 500; }
.ph-fill  { flex: 1; overflow: hidden; color: var(--text-dim); }
.ph-right { color: var(--text-muted); font-size: 10px; flex-shrink: 0; }
.panel-body {
    background: var(--bg-panel);
    border: 1px solid var(--hair);
    border-radius: 3px;
    padding: 16px 18px;
}

/* ── Status dots ──────────────────────────────────────── */
.dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.dot-ok   { background: var(--ok);      box-shadow: 0 0 5px var(--ok); }
.dot-warn { background: var(--warn);    box-shadow: 0 0 5px var(--warn); }
.dot-info { background: var(--info);    box-shadow: 0 0 5px var(--info); }
.dot-crim { background: var(--crimson); box-shadow: 0 0 5px var(--crimson); }

/* ── Whois block ──────────────────────────────────────── */
.whois-block { margin-bottom: 4px; }
.w-row {
    display: flex; line-height: 1.9;
    opacity: 0; transform: translateY(4px);
    transition: opacity 0.15s, transform 0.15s;
}
.w-row.show { opacity: 1; transform: none; }
.w-key { color: var(--text-muted); width: 120px; flex-shrink: 0; }
.w-key::after { content: ":"; }
.w-val { color: var(--text-soft); }
.cursor {
    display: inline-block; width: 7px; height: 13px;
    background: var(--crimson); vertical-align: middle;
    margin-left: 3px; animation: blink 0.9s step-end infinite;
}
.about-desc {
    font-size: 12.5px; color: var(--text-muted); line-height: 1.75;
    margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--hair);
}

/* ── Topology tree ────────────────────────────────────── */
.topo-wrap { position: relative; overflow: hidden; border-radius: 2px; }
.topo-scroll { overflow-x: auto; }
.topo-pre {
    font-size: 13px; line-height: 1.85;
    white-space: pre; color: var(--text-soft);
}
.topo-pre .t-root  { color: var(--crimson); font-weight: 700; }
.topo-pre .t-tree  { color: var(--text-dim); }
.topo-pre .t-asn   { color: var(--info); }
.topo-pre .t-name  { color: var(--text-soft); }
.topo-pre .t-rtt      { color: var(--ok); font-weight: 500; font-variant-numeric: tabular-nums; }
.topo-pre .t-bgp      { color: var(--ok); font-variant-numeric: tabular-nums; }
.topo-pre .t-bgp-down { color: var(--text-dim); }
.topo-pre .t-ix    { color: var(--num); }
.topo-pre .t-label { color: var(--text-muted); }
.scanline {
    position: absolute; top: 0; bottom: 0; left: -80px; width: 80px;
    pointer-events: none;
    background: linear-gradient(90deg, transparent 0%, rgba(232,50,79,0.1) 50%, transparent 100%);
    animation: scan 2.6s ease-in-out 0.6s 1;
}
@keyframes scan { from { left: -80px; } to { left: 100%; } }

/* ── RTT meta line ────────────────────────────────────── */
.rtt-meta {
    font-size: 10px;
    color: var(--text-dim);
    text-align: right;
    margin-top: 6px;
    letter-spacing: 0.03em;
}

/* ── IX table ─────────────────────────────────────────── */
.ix-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.ix-table td { padding: 8px 12px 8px 0; border-bottom: 1px solid var(--hair); vertical-align: middle; }
.ix-table tr:last-child td { border-bottom: none; }
.ix-name { color: var(--num); font-weight: 500; width: 140px; }
.ix-loc  { color: var(--text-muted); }
.ix-href { text-align: right; white-space: nowrap; }

/* ── Looking glass card ───────────────────────────────── */
.lg-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    padding: 12px 16px;
    border: 1px solid var(--hair);
    border-radius: 3px;
    background: var(--bg-elev);
    text-decoration: none;
    transition: border-color 0.15s, background 0.15s;
}
.lg-card:hover { border-color: var(--crimson-dim); background: rgba(232,50,79,0.04); }
.lg-card-term  { font-size: 12px; line-height: 1.8; color: var(--text-soft); }
.lg-card-ping  { color: var(--ok); font-weight: 500; font-variant-numeric: tabular-nums; }
.lg-card-cta   { font-size: 12px; color: var(--crimson); white-space: nowrap; padding-left: 20px; }

/* ── Data table ───────────────────────────────────────── */
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table td { padding: 7px 12px 7px 0; border-bottom: 1px solid var(--hair); vertical-align: middle; }
.data-table tr:last-child td { border-bottom: none; }
.dt-key   { color: var(--crimson); white-space: nowrap; padding-right: 16px; width: 150px; }
.dt-label { color: var(--text-soft); white-space: nowrap; padding-right: 14px; }
.dt-meta  { color: var(--text-muted); }
.dt-link  { text-align: right; white-space: nowrap; }
.dt-tag   { padding-right: 10px; white-space: nowrap; }
.tag { font-size: 10px; padding: 2px 6px; border-radius: 2px; letter-spacing: 0.04em; text-transform: uppercase; }
.tag-transit { background: rgba(232,50,79,0.14);  color: var(--crimson); }
.tag-ix      { background: rgba(240,160,80,0.14); color: var(--num); }
.tag-rpki    { background: rgba(74,222,128,0.12); color: var(--ok); }
.tag-irr     { background: rgba(96,165,250,0.12); color: var(--info); }

/* ── Filter bar ───────────────────────────────────────── */
.filter-bar {
    display: flex; align-items: center; gap: 8px;
    border: 1px solid var(--hair); border-radius: 3px;
    padding: 6px 10px; margin-bottom: 10px;
    background: rgba(255,255,255,0.02);
}
.filter-prompt { color: var(--text-dim); font-size: 12px; flex-shrink: 0; }
.filter-bar input {
    flex: 1; background: none; border: none; outline: none;
    color: var(--text); font-family: inherit; font-size: 12px;
}
.filter-bar input::placeholder { color: var(--text-dim); }

/* ── Config block ─────────────────────────────────────── */
.config-block { font-size: 13px; line-height: 1.85; white-space: pre; overflow-x: auto; color: var(--text-soft); }
.config-block .kw  { color: var(--crimson); font-weight: 500; }
.config-block .val { color: var(--val); }
.config-block .num { color: var(--num); }
.config-block .cmt { color: var(--cmt); font-style: italic; }

/* ── Services ─────────────────────────────────────────── */
.svc-row {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 0; border-bottom: 1px solid var(--hair); font-size: 13px;
}
.svc-row:last-child { border-bottom: none; }
.svc-name   { color: var(--text-soft); flex: 1; }
.svc-meta   { color: var(--text-muted); font-size: 11px; }
.svc-up     { color: var(--ok);   font-size: 11px; letter-spacing: 0.04em; }
.svc-sunset { color: var(--warn); font-size: 11px; letter-spacing: 0.04em; }

/* ── Man page ─────────────────────────────────────────── */
.manpage { font-size: 12.5px; line-height: 1.85; white-space: pre; overflow-x: auto; color: var(--text-soft); }
.mp-hdr  { color: var(--text-muted); }
.mp-sect { color: var(--text); font-weight: 700; }
.mp-dim  { color: var(--text-dim); }

/* ── Prose (privacy policy) ───────────────────────────── */
.policy-meta {
    display: flex; gap: 24px; flex-wrap: wrap;
    font-size: 12px; color: var(--text-muted);
    padding-bottom: 16px; margin-bottom: 16px;
    border-bottom: 1px solid var(--hair);
}
.policy-meta strong { color: var(--crimson); font-weight: 500; }
.prose { font-size: 13px; color: var(--text-soft); line-height: 1.8; }
.prose h2 {
    font-size: 13px; font-weight: 700; color: var(--crimson);
    margin: 28px 0 10px; padding-bottom: 6px;
    border-bottom: 1px solid var(--crimson-dim);
}
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 13px; font-weight: 600; color: var(--text); margin: 18px 0 8px; }
.prose p { margin-bottom: 12px; color: var(--text-soft); }
.prose ul, .prose ol { margin: 0 0 12px 20px; color: var(--text-muted); }
.prose li { margin-bottom: 4px; }
.prose ol { list-style-type: decimal; }
.prose ul { list-style-type: none; }
.prose ul li::before { content: "·  "; color: var(--text-dim); }
.prose strong { color: var(--text); font-weight: 600; }
.prose hr { border: none; border-top: 1px solid var(--hair); margin: 24px 0; }

/* ── Footer ───────────────────────────────────────────── */
footer {
    margin-left: var(--sidebar-w);
    border-top: 1px solid var(--hair);
    padding: 20px 36px; font-size: 11px;
    color: var(--text-dim); display: flex; gap: 16px; align-items: center;
}
footer a { color: var(--text-dim); }
footer a:hover { color: var(--text-muted); }

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 768px) {
    :root { --sidebar-w: 0px; }
    .sidebar { display: none; }
    .layout { grid-template-columns: 1fr; }
    .main { padding: 16px 16px 48px; }
    footer { margin-left: 0; padding: 16px; }
    .topbar-meta .asn-badge { display: none; }
}
@media (prefers-reduced-motion: reduce) {
    .scanline { animation: none; }
    .w-row { opacity: 1; transform: none; transition: none; }
    .p-cursor { animation: none; }
}