@import url('/fonts/inter/wght.css');
@import url('/fonts/jetbrains-mono/wght.css');

/* --- Design tokens --- */
:root {
  --font-sans: 'Inter Variable', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono Variable', 'Fira Code', ui-monospace, SFMono-Regular, monospace;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --nav-h: 56px;
  --container-wide: 1280px;
  --ease: cubic-bezier(.4, 0, .2, 1);

  /* light defaults (no-JS fallback; [data-theme] overrides win) */
  --bg-0: #f4f1eb;
  --bg-1: #ffffff;
  --bg-2: #edeae4;
  --bg-3: #e1ded7;
  --border: rgba(0, 0, 0, .08);
  --border-hover: rgba(0, 0, 0, .16);
  --bg-img: rgba(0, 0, 0, .08);
  --text-0: #1c1a17;
  --text-1: #6b655e;
  --text-2: #9e9890;
  --accent: #a86e38;
  --accent-hover: #c07e44;
  --accent-soft: rgba(168, 110, 56, .08);
  --accent-glow: rgba(168, 110, 56, .18);
  --success: #4c7e4c;
  --success-soft: rgba(76, 126, 76, .08);
  --danger: #a84838;
  --danger-soft: rgba(168, 72, 56, .08);
  --warning: #c89030;
  --warning-soft: rgba(210, 160, 50, .12);
  --surface-glass: rgba(244, 241, 235, .80);
  --shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 4px 16px rgba(0, 0, 0, .05);
  --shadow-lg: 0 4px 32px rgba(0, 0, 0, .08);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg-0: #0a0a0c;
    --bg-1: #131316;
    --bg-2: #1b1b1f;
    --bg-3: #242429;
    --border: rgba(255, 255, 255, .07);
    --border-hover: rgba(255, 255, 255, .14);
    --bg-img: rgba(255, 255, 255, .14);
    --text-0: #e8e4dc;
    --text-1: #9e9890;
    --text-2: #5e5a54;
    --accent: #cc8b56;
    --accent-hover: #daa070;
    --accent-soft: rgba(204, 139, 86, .10);
    --accent-glow: rgba(204, 139, 86, .25);
    --success: #6a9e6a;
    --success-soft: rgba(106, 158, 106, .10);
    --danger: #c0594a;
    --danger-soft: rgba(192, 89, 74, .10);
    --warning: #d2a032;
    --warning-soft: rgba(210, 160, 50, .12);
    --surface-glass: rgba(19, 19, 22, .75);
    --shadow: 0 1px 3px rgba(0, 0, 0, .4), 0 4px 20px rgba(0, 0, 0, .25);
    --shadow-lg: 0 4px 32px rgba(0, 0, 0, .45);
    color-scheme: dark;
  }
}

[data-theme="dark"] {
  --bg-0: #0a0a0c;
  --bg-1: #131316;
  --bg-2: #1b1b1f;
  --bg-3: #242429;
  --border: rgba(255, 255, 255, .07);
  --border-hover: rgba(255, 255, 255, .14);
  --bg-img: rgba(255, 255, 255, .14);
  --text-0: #e8e4dc;
  --text-1: #9e9890;
  --text-2: #5e5a54;
  --accent: #cc8b56;
  --accent-hover: #daa070;
  --accent-soft: rgba(204, 139, 86, .10);
  --accent-glow: rgba(204, 139, 86, .25);
  --success: #6a9e6a;
  --success-soft: rgba(106, 158, 106, .10);
  --danger: #c0594a;
  --danger-soft: rgba(192, 89, 74, .10);
  --danger-hover: #d06a5a;
  --warning: #d2a032;
  --warning-soft: rgba(210, 160, 50, .12);
  --surface-glass: rgba(19, 19, 22, .75);
  --shadow: 0 1px 3px rgba(0, 0, 0, .4), 0 4px 20px rgba(0, 0, 0, .25);
  --shadow-lg: 0 4px 32px rgba(0, 0, 0, .45);
  color-scheme: dark;
}

[data-theme="light"] {
  --bg-0: #f4f1eb;
  --bg-1: #ffffff;
  --bg-2: #edeae4;
  --bg-3: #e1ded7;
  --border: rgba(0, 0, 0, .08);
  --border-hover: rgba(0, 0, 0, .16);
  --bg-img: rgba(0, 0, 0, .08);
  --text-0: #1c1a17;
  --text-1: #6b655e;
  --text-2: #9e9890;
  --accent: #a86e38;
  --accent-hover: #c07e44;
  --accent-soft: rgba(168, 110, 56, .08);
  --accent-glow: rgba(168, 110, 56, .18);
  --success: #4c7e4c;
  --success-soft: rgba(76, 126, 76, .08);
  --danger: #a84838;
  --danger-soft: rgba(168, 72, 56, .08);
  --warning: #c89030;
  --warning-soft: rgba(210, 160, 50, .12);
  --surface-glass: rgba(244, 241, 235, .80);
  --shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 4px 16px rgba(0, 0, 0, .05);
  --shadow-lg: 0 4px 32px rgba(0, 0, 0, .08);
  color-scheme: light;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-0);
  background: var(--bg-0);
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--accent-hover); }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; appearance: none; }
::selection { background: var(--accent-soft); color: var(--accent); }

* { scrollbar-width: thin; scrollbar-color: var(--border-hover) transparent; }
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track, ::-webkit-scrollbar-corner { background: transparent; }
::-webkit-scrollbar-thumb {
  background-color: var(--border-hover); background-clip: padding-box;
  border: 3px solid transparent; border-radius: 999px; transition: background-color .2s var(--ease);
}
::-webkit-scrollbar-thumb:hover { background-color: var(--text-2); }

/* --- Layout --- */
.app-root { display: flex; flex-direction: column; min-height: 100dvh; position: relative; }
.container { max-width: var(--container-wide); margin: 0 auto; padding: 0 24px; width: 100%; }
.page-main { flex: 1; padding: 40px 0 72px; }

.page-bg {
  position: absolute; top: calc(var(--nav-h) - 1px); left: 0; width: 100%; height: 460px; z-index: -1;
  background-size: 44px 44px;
  background-image:
    linear-gradient(to right, var(--bg-img) 1px, transparent 1px),
    linear-gradient(to bottom, var(--bg-img) 1px, transparent 1px);
  mask-image: radial-gradient(80% 60% at 50% 0, #000 0%, #0000 78%);
  -webkit-mask-image: radial-gradient(80% 60% at 50% 0, #000 0%, #0000 78%);
  pointer-events: none;
}

/* --- Nav --- */
.nav-bar {
  user-select: none; cursor: default;
  position: sticky; top: 0; z-index: 200; height: var(--nav-h);
  background: var(--surface-glass);
  backdrop-filter: blur(16px) saturate(1.4); -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--container-wide); margin: 0 auto; padding: 0 24px; height: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
}
.nav-brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.nav-brand .brand-mark {
  width: 32px; height: 32px; flex-shrink: 0; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
}
.nav-brand .brand-mark img { width: 32px; height: 32px; }
.nav-brand .brand-name {
  font-family: var(--font-mono); font-size: 1.15rem; font-weight: 700;
  color: var(--text-0); letter-spacing: -.03em; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
}
.nav-links { display: flex; align-items: center; gap: 10px; flex: 1; min-width: 0; }
.nav-link {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 7px 12px; border-radius: var(--radius-sm);
  font-size: .85rem; font-weight: 600; color: var(--text-1); white-space: nowrap;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.nav-link:hover { background: var(--accent-soft); color: var(--text-0); }
.nav-link svg { width: 12px; height: 12px; opacity: .55; }
.btn-peer {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: var(--radius-sm); white-space: nowrap;
  font-size: .8rem; font-weight: 600; color: var(--accent);
  background: var(--accent-soft); border: 1px solid var(--accent-soft);
  transition: background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.btn-peer:hover { background: var(--accent-glow); border-color: var(--accent); color: var(--accent-hover); }
.btn-peer svg { width: 12px; height: 12px; }
.nav-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.nav-meta { white-space: nowrap; border-radius: 0 !important; background: none !important; border: none !important; }
.status-chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 12px; border-radius: 999px; font-size: .75rem; font-weight: 600;
  border: 1px solid var(--border); background: var(--bg-1); white-space: nowrap;
}
.status-chip .dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.status-chip.ok { color: var(--success); border-color: var(--success-soft); }
.status-chip.ok .dot { background: var(--success); box-shadow: 0 0 0 3px var(--success-soft); }
.status-chip.down { color: var(--danger); border-color: var(--danger-soft); }
.status-chip.down .dot { background: var(--danger); box-shadow: 0 0 0 3px var(--danger-soft); }
.theme-toggle {
  width: 34px; height: 34px; display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm); color: var(--text-1); transition: background .2s var(--ease), color .2s var(--ease);
}
.theme-toggle:hover { background: var(--accent-soft); color: var(--text-0); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

/* --- Typography helpers --- */
h1 { font-size: clamp(1.7rem, 4vw, 2.3rem); font-weight: 700; line-height: 1.15; letter-spacing: 0.015em; }
h2 { font-size: clamp(1.2rem, 3vw, 1.5rem); font-weight: 600; letter-spacing: -.015em; }
.eyebrow {
  display: inline-block; font-size: .7rem; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px;
}
.mono { font-family: var(--font-mono); }
.text-muted { color: var(--text-1); }

/* --- Header --- */
.grc-header { user-select: none; cursor: default; padding: 32px 0 8px; }
.meta-pill {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: .8rem; color: var(--text-1); font-family: var(--font-mono);
  background: var(--bg-1); border: 1px solid var(--border);
  padding: 4px 11px; border-radius: var(--radius-sm);
}
.meta-pill b { color: var(--text-0); font-weight: 600; }

/* --- Section --- */
.section { margin-top: 44px; }
.section-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 16px;
  margin-bottom: 18px; flex-wrap: wrap;
}
.section-head .count { font-size: .85rem; color: var(--text-2); font-family: var(--font-mono); }
.section-note { font-size: .82rem; color: var(--text-2); margin-top: -6px; margin-bottom: 18px; }

/* --- Collapsible section (native <details>/<summary>, no JS needed) --- */
.config-details summary.section-head {
  cursor: pointer; list-style: none; align-items: center; user-select: none;
}
.config-details summary.section-head::-webkit-details-marker { display: none; }
.config-details summary.section-head:hover h2 { color: var(--accent); }
.config-details summary.section-head h2 { transition: color .2s var(--ease); }
.details-chevron { width: 16px; height: 16px; color: var(--text-2); flex-shrink: 0; transition: transform .2s var(--ease); }
.config-details[open] .details-chevron { transform: rotate(180deg); }
.config-details-body { margin-top: 18px; }

/* --- Card --- */
.card {
  background: var(--bg-1); border: 1px solid var(--border);
  border-radius: var(--radius-lg); box-shadow: var(--shadow);
}
.card-pad { padding: 24px 26px; }

/* --- Config code block --- */
.config-block { position: relative; overflow: hidden; }
.config-block .config-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--border); background: var(--bg-2);
}
.config-block .config-head span { font-size: .78rem; font-weight: 600; color: var(--text-1); }
.config-block pre {
  margin: 0; padding: 18px 20px; overflow-x: auto;
  font-family: var(--font-mono); font-size: .82rem; line-height: 1.65; color: var(--text-0);
}
.config-block pre .cmt { color: var(--text-2); }
.config-block pre .kw { color: var(--accent); }
.copy-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px; font-size: .75rem; font-weight: 600;
  border-radius: var(--radius-sm); border: 1px solid var(--border-hover);
  color: var(--text-1); background: var(--bg-1); transition: all .2s var(--ease);
}
.copy-btn:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }

/* --- Identity strip -------------------------------------------------------
   Static facts (ASN, router id, hostname, uptime) read as reference data, not
   as live metrics, so they get a quiet single surface instead of loud cards.
   The 1px grid gap over a border-coloured background draws the dividers, which
   keeps them correct at every wrap point. */
.identity-strip {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--border); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow); margin-bottom: 16px;
}
.identity-item {
  background: var(--bg-1); padding: 13px 20px;
  display: flex; flex-direction: column; gap: 3px; min-width: 0;
}
.identity-item .k {
  font-size: .66rem; font-weight: 600; color: var(--text-2);
  text-transform: uppercase; letter-spacing: .07em;
}
.identity-item .v {
  font-family: var(--font-mono); font-size: .95rem; color: var(--text-0);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  font-variant-numeric: tabular-nums;
}

/* --- Stat grid ------------------------------------------------------------
   Six live metrics on a fixed 3-up grid: 3x2 divides evenly (no ragged last
   row) and each cell is wide enough that mono numerals never wrap. */
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.stat-card {
  background: var(--bg-1); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 20px 22px; box-shadow: var(--shadow);
  display: flex; flex-direction: column;
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}
.stat-card:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.stat-label {
  font-size: .72rem; font-weight: 600; color: var(--text-2);
  text-transform: uppercase; letter-spacing: .06em;
}
.stat-value {
  margin-top: 8px; font-family: var(--font-mono); font-weight: 700;
  font-size: clamp(1.35rem, 1.1rem + .9vw, 1.8rem); line-height: 1.15;
  color: var(--text-0); white-space: nowrap;
  font-variant-numeric: tabular-nums;
  display: flex; align-items: baseline; gap: 7px;
}
/* unit rides the numeral as a subordinate suffix rather than competing with it */
.stat-unit { font-size: .78rem; font-weight: 600; color: var(--text-2); letter-spacing: .02em; }
.stat-sep { color: var(--text-2); font-weight: 400; }
.stat-value.accent  { color: var(--accent); }
.stat-value.success { color: var(--success); }
.stat-value.warning { color: var(--warning); }
.stat-value.danger  { color: var(--danger); }
.stat-sub { margin-top: auto; padding-top: 8px; font-size: .76rem; color: var(--text-1); }

/* peer health encoded as form, not just number */
.peer-bar { margin-top: 11px; height: 4px; border-radius: 2px; background: var(--bg-3); overflow: hidden; }
.peer-bar span { display: block; height: 100%; border-radius: 2px; transition: width .3s var(--ease); }
.peer-bar span.success { background: var(--success); }
.peer-bar span.warning { background: var(--warning); }
.peer-bar span.danger  { background: var(--danger); }

.stat-split { display: flex; margin-top: 20px; justify-content: space-around; }
.stat-split > div { min-width: 0; }
.stat-split .k { font-size: .66rem; color: var(--text-2); text-transform: uppercase; letter-spacing: .06em; }
.stat-split .v {
  font-family: var(--font-mono); font-weight: 700;
  font-size: clamp(1.1rem, .95rem + .55vw, 1.42rem); color: var(--text-0);
  white-space: nowrap; font-variant-numeric: tabular-nums;
}

@media (max-width: 900px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .identity-strip { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .stat-grid { grid-template-columns: 1fr; }
}
@media (max-width: 460px) {
  .identity-strip { grid-template-columns: 1fr; }
}

/* --- Table --- */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); background: var(--bg-1); }
.data-table { width: 100%; border-collapse: collapse; font-size: .85rem; }
.data-table th {
  text-align: left; padding: 11px 14px; white-space: nowrap;
  font-size: .68rem; font-weight: 600; color: var(--text-2);
  text-transform: uppercase; letter-spacing: .05em; border-bottom: 1px solid var(--border);
}
.data-table th.num, .data-table td.num { text-align: right; font-variant-numeric: tabular-nums; }
.data-table td { padding: 11px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.data-table tbody tr { transition: background .15s var(--ease); }
.data-table tbody tr:hover { background: var(--accent-soft); }
.data-table tr:last-child td { border-bottom: none; }
.data-table .mono-cell { font-family: var(--font-mono); font-size: .8rem; }
.data-table .muted { color: var(--text-2); }
.retry-note { margin-left: 6px; font-family: var(--font-mono); font-size: .72rem; white-space: nowrap; }

/* --- Badge --- */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 2px 9px; font-size: .7rem; font-weight: 600; border-radius: var(--radius-sm); letter-spacing: .02em;
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; }
.badge-success { background: var(--success-soft); color: var(--success); }
.badge-success .dot { background: var(--success); }
.badge-warning { background: var(--warning-soft); color: var(--warning); }
.badge-warning .dot { background: var(--warning); }
.badge-muted { background: var(--bg-3); color: var(--text-2); }
.badge-muted .dot { background: var(--text-2); }
.badge-danger { background: var(--danger-soft); color: var(--danger); }
.badge-danger .dot { background: var(--danger); }

/* --- Tabs (metric range selector) --- */
.tab-bar { display: inline-flex; gap: 2px; padding: 3px; background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius); }
.tab-btn {
  padding: 5px 13px; font-size: .78rem; font-weight: 600; color: var(--text-1);
  border-radius: var(--radius-sm); background: none; border: none; cursor: pointer;
  transition: color .2s var(--ease), background .2s var(--ease); white-space: nowrap;
}
.tab-btn:hover { color: var(--text-0); }
.tab-btn.active { color: var(--accent); background: var(--bg-1); box-shadow: var(--shadow); }
.metric-period-tabs { flex-wrap: wrap; }

/* --- Metrics grid --- */
.metrics-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.chart-card {
  background: var(--bg-1); border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); padding: 18px 18px 12px;
}
.chart-card .chart-title {
  display: flex; align-items: center; gap: 8px; margin-bottom: 6px;
  font-size: .85rem; font-weight: 600; color: var(--text-1);
}
.chart-card .chart-title .swatch { width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0; }
.chart-card .chart { width: 100%; height: 240px; }

@media (max-width: 820px) {
  .metrics-grid { grid-template-columns: 1fr; }
}

/* --- RIB dumps --- */
.rib-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; }
.rib-item {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 18px; background: var(--bg-1); border: 1px solid var(--border);
  border-radius: var(--radius); transition: border-color .2s var(--ease), transform .15s var(--ease);
}
.rib-item:hover { border-color: var(--accent); transform: translateY(-1px); }
.rib-icon {
  width: 38px; height: 38px; flex-shrink: 0; border-radius: var(--radius-sm);
  background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
}
.rib-body { min-width: 0; flex: 1; }
.rib-name { font-weight: 600; font-size: .9rem; color: var(--text-0); }
.rib-file { font-family: var(--font-mono); font-size: .74rem; color: var(--text-2); word-break: break-all; }
.rib-meta { margin-top: 3px; font-size: .74rem; color: var(--text-1); }
.rib-meta .na { color: var(--text-2); font-style: italic; }

/* --- Banner --- */
.banner {
  padding: 14px 18px; border-radius: var(--radius); margin-bottom: 24px;
  font-size: .88rem; border: 1px solid; display: flex; align-items: center; gap: 10px;
}
.banner-danger { background: var(--danger-soft); border-color: var(--danger); color: var(--danger); }
.banner-warning { background: var(--warning-soft); border-color: var(--warning); color: var(--warning); }
.banner svg { flex-shrink: 0; }

/* --- Footer --- */
.site-footer {
  user-select: none;
  cursor: default;
  border-top: 1px solid var(--border); padding: 28px 24px; background: var(--bg-1);
  font-size: .82rem; color: var(--text-1); text-align: center;
}
.site-footer .footer-inner { max-width: var(--container-wide); margin: 0 auto; display: grid; gap: 10px; }
.site-footer .footer-brand { font-weight: 600; color: var(--text-0); font-size: .88rem; }
.site-footer .footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 6px; }
.site-footer .footer-links a {
  font-weight: 500;
  padding: 4px 10px; border-radius: var(--radius-sm);
  transition: background .2s var(--ease), color .2s var(--ease);
}
.site-footer .footer-links a:hover { background: var(--accent-soft); color: var(--accent); }
.site-footer .footer-copy { color: var(--text-2); font-family: var(--font-mono); font-size: .72rem; }
.site-footer a { color: var(--text-1); }
.site-footer a:hover { color: var(--accent); }

.empty-note { padding: 40px 24px; text-align: center; color: var(--text-2); font-size: .88rem; }

@media (max-width: 720px) {
  .nav-links { display: none; }
}
@media (max-width: 600px) {
  .container { padding: 0 14px; }
  .nav-meta { display: none; }
}