:root {
  --bg: #050810;
  --bg-deep: #02040a;
  --panel: rgba(7, 11, 20, 0.66);
  --panel-strong: rgba(5, 8, 16, 0.84);
  --panel-soft: rgba(255, 255, 255, 0.035);
  --ink: #e9f2f3;
  --ink-soft: rgba(233, 242, 243, 0.72);
  --ink-muted: rgba(233, 242, 243, 0.48);
  --line: rgba(233, 242, 243, 0.12);
  --line-strong: rgba(233, 242, 243, 0.24);
  --blue: #7c9bff;
  --cyan: #45e3f7;
  --mint: #7ff3b4;
  --amber: #f5d78a;
  --orange: #f0a35e;
  --focus: #9ecbff;
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-data: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --page: min(1400px, calc(100vw - 40px));
}

* { box-sizing: border-box; }

html { color-scheme: dark; scroll-behavior: smooth; }

body {
  min-width: 320px;
  min-height: 100%;
  margin: 0;
  background: var(--bg-deep);
  color: var(--ink);
  font-family: var(--font-display);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
button, input, select { font: inherit; color: inherit; }
button, select { cursor: pointer; }

::selection { color: var(--ink); background: rgba(124, 155, 255, 0.34); }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.observatory-shell {
  position: relative;
  min-height: 100vh;
  overflow: clip;
  isolation: isolate;
  background:
    radial-gradient(circle at 80% 4%, rgba(50, 74, 163, 0.22), transparent 30%),
    radial-gradient(circle at 9% 23%, rgba(19, 108, 120, 0.12), transparent 23%),
    radial-gradient(circle at 72% 68%, rgba(67, 42, 114, 0.10), transparent 32%),
    linear-gradient(180deg, #060a16 0, var(--bg) 42%, var(--bg-deep) 100%);
}

.ambient-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.38;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    radial-gradient(circle at 16% 17%, rgba(255,255,255,.5) 0 1px, transparent 1.7px),
    radial-gradient(circle at 82% 31%, rgba(124,155,255,.6) 0 1px, transparent 1.7px),
    radial-gradient(circle at 62% 83%, rgba(69,227,247,.45) 0 1px, transparent 1.7px);
  background-size: 72px 72px, 72px 72px, 260px 260px, 340px 340px, 310px 310px;
  mask-image: linear-gradient(to bottom, black, rgba(0,0,0,.42) 65%, transparent);
}

.observatory-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  min-height: 74px;
  padding: max(14px, env(safe-area-inset-top)) max(20px, env(safe-area-inset-right)) 14px max(20px, env(safe-area-inset-left));
  border-bottom: 1px solid rgba(233, 242, 243, 0.09);
  background: rgba(3, 6, 13, 0.72);
  backdrop-filter: blur(24px) saturate(1.25);
}

.observatory-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  text-decoration: none;
}

.observatory-mark {
  display: grid;
  place-items: center;
  width: 35px;
  height: 35px;
  color: var(--blue);
  font-size: 20px;
  border: 1px solid rgba(124, 155, 255, 0.32);
  border-radius: 11px;
  background: rgba(124, 155, 255, 0.08);
  box-shadow: 0 0 26px rgba(124, 155, 255, 0.13);
}

.observatory-brand > span:last-child { display: grid; gap: 1px; }
.observatory-brand strong { font-size: 14px; letter-spacing: 0.14em; }
.observatory-brand small {
  color: var(--ink-muted);
  font-family: var(--font-data);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.header-actions { display: flex; align-items: center; gap: 12px; }

.snapshot-chip,
.back-link {
  min-height: 38px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.035);
  font-family: var(--font-data);
  font-size: 10px;
  letter-spacing: 0.035em;
}

.snapshot-chip { display: inline-flex; align-items: center; gap: 8px; color: var(--ink-soft); }
.snapshot-chip i { width: 6px; height: 6px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 12px rgba(245, 215, 138, 0.5); }
.snapshot-chip.is-connected i { background: var(--mint); box-shadow: 0 0 12px rgba(127, 243, 180, 0.5); }
.back-link { color: var(--ink-soft); text-decoration: none; transition: border-color 180ms ease, color 180ms ease, background 180ms ease; }
.back-link:hover { color: var(--ink); border-color: var(--line-strong); background: rgba(255,255,255,.06); }

.observatory-main { width: var(--page); margin: 0 auto; padding: 72px 0 90px; }

.stats-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(440px, 0.54fr);
  align-items: end;
  gap: 48px;
  margin-bottom: 34px;
}

.eyebrow,
.panel-kicker {
  margin: 0 0 12px;
  color: var(--ink-muted);
  font-family: var(--font-data);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow { display: flex; align-items: center; gap: 9px; }
.eyebrow span { width: 18px; height: 1px; background: var(--blue); box-shadow: 0 0 12px rgba(124,155,255,.6); }

.stats-hero h1 {
  max-width: 790px;
  margin: 0;
  font-size: clamp(48px, 6.4vw, 92px);
  font-weight: 430;
  line-height: 0.96;
  letter-spacing: -0.055em;
}

.hero-lede {
  max-width: 720px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: clamp(16px, 1.5vw, 20px);
  line-height: 1.55;
}

.freshness-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  margin-top: 24px;
  color: var(--ink-muted);
  font-family: var(--font-data);
  font-size: 10px;
  letter-spacing: 0.035em;
}

.freshness-line time { color: var(--ink-soft); }
.freshness-divider { width: 3px; height: 3px; border-radius: 50%; background: var(--line-strong); }

.period-panel {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
  box-shadow: inset 0 1px rgba(255,255,255,.035), 0 22px 60px rgba(0,0,0,.24);
  backdrop-filter: blur(20px);
}

.control-label-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 11px; }
.control-label,
.range-readout,
.chart-controls label span,
.custom-range label span {
  color: var(--ink-muted);
  font-family: var(--font-data);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.range-readout { color: var(--ink-soft); letter-spacing: 0.025em; text-align: right; }

.period-presets {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 5px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: rgba(0,0,0,.22);
}

.period-presets button {
  min-height: 42px;
  padding: 8px 9px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--ink-muted);
  font-family: var(--font-data);
  font-size: 10px;
  letter-spacing: 0.04em;
  transition: color 170ms ease, background 170ms ease, box-shadow 170ms ease;
}

.period-presets button:hover { color: var(--ink-soft); background: rgba(255,255,255,.035); }
.period-presets button[aria-pressed="true"] { color: var(--ink); background: rgba(124, 155, 255, 0.16); box-shadow: inset 0 0 0 1px rgba(124,155,255,.26); }

.custom-range { display: grid; grid-template-columns: 1fr 1fr auto; gap: 8px; margin-top: 12px; }
.custom-range label { display: grid; gap: 5px; }
.custom-range input,
.apply-range,
.chart-controls select,
.table-actions input,
.table-actions select,
.export-button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255,255,255,.035);
  color: var(--ink-soft);
  font-family: var(--font-data);
  font-size: 10px;
}
.custom-range input { width: 100%; padding: 8px 10px; }
.apply-range { align-self: end; padding: 8px 14px; color: var(--ink); background: rgba(124,155,255,.14); }

.coverage-notice {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
  padding: 14px 16px;
  border: 1px solid rgba(245, 215, 138, 0.2);
  border-radius: 15px;
  background: rgba(245, 215, 138, 0.055);
}
.coverage-notice.is-connected { border-color: rgba(127,243,180,.2); background: rgba(127,243,180,.05); }
.notice-icon { display: grid; place-items: center; width: 28px; height: 28px; border: 1px solid rgba(245,215,138,.28); border-radius: 50%; color: var(--amber); font-family: var(--font-data); font-size: 11px; }
.is-connected .notice-icon { color: var(--mint); border-color: rgba(127,243,180,.28); }
.coverage-notice strong { display: block; margin-bottom: 2px; font-size: 13px; font-weight: 600; }
.coverage-notice p { margin: 0; color: var(--ink-muted); font-size: 12px; line-height: 1.45; }
.coverage-notice a { color: var(--ink-soft); font-family: var(--font-data); font-size: 10px; text-decoration: none; border-bottom: 1px solid var(--line-strong); white-space: nowrap; }

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 10px;
}

.kpi-card {
  min-height: 156px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
  box-shadow: inset 0 1px rgba(255,255,255,.035);
  backdrop-filter: blur(18px);
  transition: border-color 180ms ease, transform 300ms var(--ease);
}
.kpi-card:hover { border-color: rgba(233,242,243,.19); transform: translateY(-2px); }
.kpi-primary { border-color: rgba(124,155,255,.25); background: rgba(15,21,42,.76); }
.kpi-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--ink-muted); font-family: var(--font-data); font-size: 9px; letter-spacing: .08em; text-transform: uppercase; }
.data-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 10px rgba(245,215,138,.4); }
.data-dot.is-connected, .data-dot.is-static { background: var(--mint); box-shadow: 0 0 10px rgba(127,243,180,.4); }
.data-dot.is-static { background: var(--blue); box-shadow: 0 0 10px rgba(124,155,255,.4); }
.kpi-value { display: block; margin-top: 20px; font-family: var(--font-data); font-size: clamp(28px, 3vw, 43px); font-weight: 500; line-height: 1; letter-spacing: -.055em; font-variant-numeric: tabular-nums; }
.kpi-card p { margin: 12px 0 0; color: var(--ink-muted); font-size: 11px; line-height: 1.4; }

.dashboard-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 10px; margin-bottom: 10px; }
.traffic-panel { grid-column: span 8; }
.ranking-panel { grid-column: span 4; }
.content-chart-panel { grid-column: span 7; }
.health-panel { grid-column: span 5; }

.glass-panel {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
  box-shadow: inset 0 1px rgba(255,255,255,.035), 0 24px 70px rgba(0,0,0,.16);
  backdrop-filter: blur(20px);
}

.panel-heading { padding: 22px 22px 0; }
.panel-heading h2,
.section-heading h2,
.methodology h2 { margin: 0; font-size: clamp(20px, 2vw, 27px); font-weight: 520; letter-spacing: -.025em; }
.panel-heading > p:last-child,
.panel-heading > div > p:last-child,
.section-heading > p { margin: 7px 0 0; color: var(--ink-muted); font-size: 12px; line-height: 1.5; }
.panel-kicker { margin-bottom: 8px; }

.chart-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; }
.chart-controls { display: flex; align-items: end; gap: 8px; }
.chart-controls label { display: grid; gap: 5px; }
.chart-controls select { width: 142px; padding: 8px 30px 8px 10px; }
.chart-controls label:last-child select { width: 182px; }

.traffic-legend { display: flex; flex-wrap: wrap; gap: 8px 14px; min-height: 27px; padding: 13px 22px 0; }
.legend-item { display: inline-flex; align-items: center; gap: 6px; color: var(--ink-muted); font-family: var(--font-data); font-size: 9px; }
.legend-item i { width: 14px; height: 2px; background: var(--legend-color); }

.chart-stage { position: relative; min-height: 338px; margin: 12px 10px 10px; border-radius: 17px; background: rgba(1,3,9,.28); overflow: hidden; }
#traffic-chart { display: block; width: 100%; height: 338px; }
.chart-empty { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; max-width: 390px; margin: auto; padding: 26px; text-align: center; }
.chart-empty[hidden] { display: none; }
.chart-empty strong { margin-top: 14px; font-size: 16px; }
.chart-empty p { margin: 7px 0 0; color: var(--ink-muted); font-size: 12px; line-height: 1.55; }
.empty-orbit { position: relative; display: block; width: 50px; height: 50px; border: 1px solid rgba(124,155,255,.24); border-radius: 50%; }
.empty-orbit::before, .empty-orbit::after { content: ""; position: absolute; inset: 8px; border: 1px solid rgba(69,227,247,.18); border-radius: 50%; transform: rotate(60deg) scaleY(.45); }
.empty-orbit::after { transform: rotate(-30deg) scaleY(.45); }
.empty-orbit i { position: absolute; left: 50%; top: 50%; width: 5px; height: 5px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 14px var(--blue); transform: translate(-50%,-50%); }
.chart-tooltip { position: absolute; z-index: 4; min-width: 140px; padding: 9px 11px; pointer-events: none; border: 1px solid var(--line-strong); border-radius: 10px; background: rgba(3,6,13,.94); box-shadow: 0 12px 30px rgba(0,0,0,.35); font-family: var(--font-data); font-size: 9px; line-height: 1.6; }
.chart-tooltip > strong { display: block; margin-bottom: 5px; color: var(--ink); font-weight: 500; }
.chart-tooltip span { display: flex; align-items: center; gap: 6px; color: var(--ink-muted); }
.chart-tooltip span i { width: 7px; height: 2px; }
.chart-tooltip span b { margin-left: auto; color: var(--ink-soft); font-weight: 500; }

.ranked-bars { display: grid; gap: 16px; padding: 24px 22px 25px; }
.rank-row { display: grid; gap: 7px; }
.rank-label { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--ink-soft); font-size: 12px; }
.rank-label span:first-child { display: inline-flex; align-items: center; min-width: 0; gap: 8px; }
.rank-label i { flex: 0 0 auto; width: 6px; height: 6px; border-radius: 50%; background: var(--bar-color); box-shadow: 0 0 9px color-mix(in srgb, var(--bar-color), transparent 42%); }
.rank-label b { overflow: hidden; font-weight: 500; text-overflow: ellipsis; white-space: nowrap; }
.rank-label strong { font-family: var(--font-data); font-size: 11px; font-weight: 500; font-variant-numeric: tabular-nums; }
.rank-track { height: 6px; overflow: hidden; border-radius: 999px; background: rgba(255,255,255,.055); }
.rank-track span { display: block; width: var(--bar-width); height: 100%; border-radius: inherit; background: var(--bar-color); transform-origin: left; animation: barIn 650ms var(--ease) both; }
.ranking-empty { display: grid; place-content: center; min-height: 310px; padding: 24px; text-align: center; }
.ranking-empty[hidden] { display: none; }
.ranking-empty strong { font-family: var(--font-data); font-size: 23px; font-weight: 500; }
.ranking-empty p { max-width: 280px; margin: 8px auto 0; color: var(--ink-muted); font-size: 12px; line-height: 1.5; }

.content-bars { display: grid; gap: 15px; padding: 24px 22px 25px; }
.content-row { display: grid; grid-template-columns: minmax(150px, 1fr) minmax(190px, 2.2fr) 46px; align-items: center; gap: 13px; }
.content-label { display: flex; align-items: center; gap: 8px; min-width: 0; color: var(--ink-soft); font-size: 12px; }
.content-label i { flex: 0 0 auto; width: 6px; height: 6px; border-radius: 50%; background: var(--bar-color); }
.content-label span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.content-track { height: 8px; border-radius: 999px; background: rgba(255,255,255,.05); overflow: hidden; }
.content-track span { display: block; width: var(--bar-width); height: 100%; border-radius: inherit; background: var(--bar-color); animation: barIn 650ms var(--ease) both; }
.content-value { color: var(--ink-soft); font-family: var(--font-data); font-size: 10px; text-align: right; }

.health-list { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 23px 22px 18px; }
.health-list > div { display: grid; gap: 5px; min-height: 110px; padding: 14px; border: 1px solid var(--line); border-radius: 15px; background: rgba(255,255,255,.025); }
.health-list span, .health-foot span { color: var(--ink-muted); font-size: 11px; }
.health-list strong { align-self: end; font-family: var(--font-data); font-size: 25px; font-weight: 500; }
.health-list small { color: var(--ink-muted); font-family: var(--font-data); font-size: 8px; letter-spacing: .05em; text-transform: uppercase; }
.health-foot { display: flex; justify-content: space-between; gap: 12px; margin: 0 22px 22px; padding-top: 15px; border-top: 1px solid var(--line); }
.health-foot time { color: var(--ink-soft); font-family: var(--font-data); font-size: 10px; }

.section-block { padding: 74px 0 10px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 22px; }
.section-heading > p { max-width: 480px; text-align: right; }
.destination-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 10px; }

.destination-card {
  position: relative;
  min-height: 238px;
  padding: 19px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--panel);
  transition: border-color 180ms ease, transform 300ms var(--ease);
}
.destination-card::before { content: ""; position: absolute; inset: 0 auto auto 0; width: 100%; height: 1px; background: linear-gradient(90deg, var(--accent), transparent 55%); opacity: .54; }
.destination-card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--accent), transparent 67%); }
.destination-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.destination-id { display: flex; align-items: center; gap: 10px; min-width: 0; }
.destination-orb { flex: 0 0 auto; width: 10px; height: 10px; margin-top: 4px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 16px color-mix(in srgb, var(--accent), transparent 40%); }
.destination-id h3 { margin: 0; font-size: 16px; font-weight: 560; }
.destination-id a { display: block; max-width: 230px; margin-top: 3px; overflow: hidden; color: var(--ink-muted); font-family: var(--font-data); font-size: 9px; text-overflow: ellipsis; white-space: nowrap; text-decoration: none; }
.destination-status { padding: 6px 8px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-muted); font-family: var(--font-data); font-size: 8px; letter-spacing: .05em; text-transform: uppercase; }
.destination-description { min-height: 38px; margin: 20px 0; color: var(--ink-muted); font-size: 12px; line-height: 1.55; }
.destination-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; }
.destination-metrics > div { min-width: 0; padding: 11px; border: 1px solid var(--line); border-radius: 13px; background: rgba(255,255,255,.02); }
.destination-metrics span { display: block; color: var(--ink-muted); font-family: var(--font-data); font-size: 8px; text-transform: uppercase; letter-spacing: .05em; }
.destination-metrics strong { display: block; margin-top: 7px; overflow: hidden; font-family: var(--font-data); font-size: 17px; font-weight: 500; text-overflow: ellipsis; }

.tree-panel { margin-top: 74px; overflow: hidden; }
.tree-heading {
  display: grid;
  grid-template-columns: minmax(280px, .7fr) minmax(620px, 1.3fr);
  align-items: end;
  gap: 32px;
  padding-bottom: 18px;
}
.tree-controls {
  display: grid;
  grid-template-columns: minmax(150px, .8fr) auto minmax(190px, 1fr) auto;
  align-items: end;
  gap: 7px;
}
.tree-control-field { display: grid; gap: 5px; }
.tree-control-field > span {
  color: var(--ink-muted);
  font-family: var(--font-data);
  font-size: 9px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.tree-control-field select,
.tree-search input,
.tree-mode-switch button,
.tree-expand-actions button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255,255,255,.035);
  color: var(--ink-soft);
  font-family: var(--font-data);
  font-size: 10px;
}
.tree-control-field select { width: 100%; padding: 8px 30px 8px 10px; }
.tree-search input { width: 100%; padding: 8px 11px; }
.tree-mode-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-width: 190px;
  margin: 0;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(0,0,0,.22);
}
.tree-mode-switch button { min-height: 32px; padding: 6px 9px; border: 0; background: transparent; }
.tree-mode-switch button[aria-pressed="true"] { color: var(--ink); background: rgba(124,155,255,.16); box-shadow: inset 0 0 0 1px rgba(124,155,255,.24); }
.tree-expand-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; }
.tree-expand-actions button { padding: 8px 10px; white-space: nowrap; }
.tree-expand-actions button:hover,
.tree-control-field select:hover,
.tree-search input:hover { border-color: var(--line-strong); }

.tree-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
  padding: 13px 22px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(124,155,255,.035);
}
.tree-summary > div { display: flex; align-items: baseline; gap: 13px; }
.tree-summary span { color: var(--ink-muted); font-size: 11px; }
.tree-summary strong { font-family: var(--font-data); font-size: 23px; font-weight: 500; font-variant-numeric: tabular-nums; }
.tree-summary p { max-width: 700px; margin: 0; color: var(--ink-muted); font-size: 11px; line-height: 1.5; text-align: right; }

.network-tree { padding: 12px 14px 16px; }
.tree-node,
.tree-leaf { position: relative; }
.tree-node > summary,
.tree-leaf {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(120px, 240px) 96px;
  align-items: center;
  gap: 18px;
  min-height: 58px;
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: 13px;
  list-style: none;
  transition: border-color 160ms ease, background 160ms ease;
}
.tree-node > summary { cursor: pointer; }
.tree-node > summary::-webkit-details-marker { display: none; }
.tree-node > summary:hover,
.tree-leaf:hover { border-color: var(--line); background: rgba(255,255,255,.025); }
.tree-node[open] > summary { background: rgba(255,255,255,.018); }
.tree-ident { display: grid; grid-template-columns: 22px minmax(0, 1fr); align-items: center; gap: 9px; min-width: 0; }
.tree-caret,
.tree-leaf-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  color: var(--ink-muted);
}
.tree-caret::before {
  content: "";
  width: 6px;
  height: 6px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: rotate(-45deg);
  transition: transform 160ms ease;
}
.tree-node[open] > summary .tree-caret::before { transform: rotate(45deg) translate(-1px, -1px); }
.tree-leaf-mark::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--tree-accent); box-shadow: 0 0 10px color-mix(in srgb, var(--tree-accent), transparent 48%); }
.tree-label { min-width: 0; }
.tree-label-line { display: flex; align-items: center; gap: 8px; min-width: 0; }
.tree-label-line strong,
.tree-label-line a {
  overflow: hidden;
  color: var(--ink);
  font-size: 12px;
  font-weight: 550;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tree-label-line a { text-decoration: none; }
.tree-label-line a:hover { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.tree-type {
  flex: 0 0 auto;
  padding: 3px 5px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-muted);
  font-family: var(--font-data);
  font-size: 7px;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.tree-meta {
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
  margin-top: 4px;
  color: var(--ink-muted);
  font-family: var(--font-data);
  font-size: 8px;
}
.tree-meta span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tree-meta i { flex: 0 0 auto; width: 3px; height: 3px; border-radius: 50%; background: var(--line-strong); }
.tree-meter { height: 6px; overflow: hidden; border-radius: 999px; background: rgba(255,255,255,.05); }
.tree-meter i { display: block; width: var(--tree-width); height: 100%; border-radius: inherit; background: var(--tree-accent); transform-origin: left; animation: barIn 520ms var(--ease) both; }
.tree-row-value { color: var(--ink-soft); font-family: var(--font-data); font-size: 11px; font-weight: 500; font-variant-numeric: tabular-nums; text-align: right; }
.tree-row-value.is-empty { color: rgba(233,242,243,.28); }
.tree-children {
  position: relative;
  margin-left: 23px;
  padding-left: 18px;
  border-left: 1px solid rgba(124,155,255,.17);
}
.tree-children > .tree-node::before,
.tree-children > .tree-leaf::before {
  content: "";
  position: absolute;
  top: 29px;
  left: -18px;
  width: 12px;
  border-top: 1px solid rgba(124,155,255,.17);
}
.tree-empty { margin: 14px; padding: 42px 20px; border: 1px dashed var(--line); border-radius: 15px; text-align: center; }
.tree-empty[hidden] { display: none; }
.tree-empty strong { font-size: 14px; }
.tree-empty p { margin: 6px 0 0; color: var(--ink-muted); font-size: 11px; }
.tree-footnote { margin: 0; padding: 13px 22px 17px; border-top: 1px solid var(--line); color: var(--ink-muted); font-family: var(--font-data); font-size: 8px; line-height: 1.6; }

.table-panel { margin-top: 74px; overflow: hidden; }
.table-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; padding-bottom: 18px; }
.table-actions { display: flex; align-items: center; justify-content: flex-end; gap: 7px; flex-wrap: wrap; }
.table-actions input { width: 220px; padding: 8px 11px; }
.table-actions select { width: 154px; padding: 8px 30px 8px 10px; }
.export-button { padding: 8px 13px; border-color: rgba(124,155,255,.24); background: rgba(124,155,255,.11); }
.table-wrap { overflow-x: auto; border-top: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 14px 18px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
th { color: var(--ink-muted); font-family: var(--font-data); font-size: 8px; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; }
td { color: var(--ink-soft); font-size: 12px; }
th.number, td.number { text-align: right; font-family: var(--font-data); font-variant-numeric: tabular-nums; }
.property-cell { display: flex; align-items: center; gap: 10px; min-width: 220px; }
.property-cell i { flex: 0 0 auto; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px color-mix(in srgb, var(--accent), transparent 46%); }
.property-cell strong { display: block; color: var(--ink); font-size: 12px; font-weight: 560; }
.property-cell small { display: block; max-width: 290px; margin-top: 2px; overflow: hidden; color: var(--ink-muted); font-family: var(--font-data); font-size: 8px; text-overflow: ellipsis; white-space: nowrap; }
.status-cell span { display: inline-flex; align-items: center; min-height: 24px; padding: 5px 8px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-muted); font-family: var(--font-data); font-size: 8px; letter-spacing: .04em; text-transform: uppercase; }
.empty-value { color: rgba(233,242,243,.28); }
.table-footer { display: flex; justify-content: space-between; gap: 20px; padding: 13px 18px 15px; color: var(--ink-muted); font-family: var(--font-data); font-size: 8px; }

.methodology { display: grid; grid-template-columns: minmax(220px,.35fr) 1fr; gap: 56px; padding: 80px 0 36px; }
.methodology-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.definition { padding: 15px; border-left: 1px solid var(--line-strong); background: rgba(255,255,255,.018); }
.definition strong { display: block; margin-bottom: 6px; font-family: var(--font-data); font-size: 9px; letter-spacing: .06em; text-transform: uppercase; }
.definition p { margin: 0; color: var(--ink-muted); font-size: 11px; line-height: 1.55; }
.source-footnote { grid-column: 2; display: flex; align-items: flex-start; gap: 12px; margin-top: 5px; padding: 16px; border: 1px solid var(--line); border-radius: 15px; background: rgba(255,255,255,.02); }
.source-glyph { color: var(--blue); }
.source-footnote p { margin: 0; color: var(--ink-muted); font-size: 11px; line-height: 1.55; }
.source-footnote strong { color: var(--ink-soft); }

.observatory-footer { display: flex; align-items: center; gap: 18px; width: var(--page); margin: 0 auto; padding: 24px 0 max(30px, env(safe-area-inset-bottom)); border-top: 1px solid var(--line); color: var(--ink-muted); font-family: var(--font-data); font-size: 9px; }
.observatory-footer a { margin-left: auto; color: var(--ink-soft); text-decoration: none; }

@keyframes barIn { from { transform: scaleX(0); opacity: .2; } to { transform: scaleX(1); opacity: 1; } }

@media (max-width: 1120px) {
  .stats-hero { grid-template-columns: 1fr; align-items: start; }
  .period-panel { max-width: 680px; }
  .kpi-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .traffic-panel, .ranking-panel, .content-chart-panel, .health-panel { grid-column: span 12; }
  .destination-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .tree-heading { grid-template-columns: 1fr; align-items: start; }
  .tree-controls { grid-template-columns: minmax(150px, .8fr) auto minmax(190px, 1fr) auto; }
  .methodology { gap: 30px; }
}

@media (max-width: 760px) {
  :root { --page: min(100% - 24px, 1400px); }
  .observatory-header { min-height: 66px; padding-left: 12px; padding-right: 12px; }
  .snapshot-chip { display: none; }
  .back-link { min-height: 36px; padding: 8px 10px; font-size: 9px; }
  .observatory-main { padding: 46px 0 66px; }
  .stats-hero { gap: 30px; margin-bottom: 24px; }
  .stats-hero h1 { font-size: clamp(44px, 15vw, 66px); }
  .hero-lede { margin-top: 18px; }
  .period-panel { padding: 12px; border-radius: 16px; }
  .period-presets { grid-template-columns: repeat(5, minmax(62px,1fr)); overflow-x: auto; }
  .period-presets button { min-height: 44px; }
  .custom-range { grid-template-columns: 1fr 1fr; }
  .apply-range { grid-column: 1 / -1; }
  .coverage-notice { grid-template-columns: auto 1fr; align-items: start; }
  .coverage-notice a { grid-column: 2; justify-self: start; }
  .kpi-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .kpi-card { min-height: 145px; padding: 15px; }
  .kpi-card:last-child { grid-column: 1 / -1; }
  .chart-heading, .table-heading, .section-heading { display: grid; align-items: start; }
  .chart-controls { width: 100%; }
  .chart-controls label { flex: 1; }
  .chart-controls select, .chart-controls label:last-child select { width: 100%; }
  .chart-stage { min-height: 278px; }
  #traffic-chart { height: 278px; }
  .content-row { grid-template-columns: minmax(125px,1fr) minmax(110px,1.4fr) 38px; }
  .destination-grid { grid-template-columns: 1fr; }
  .section-heading > p { text-align: left; }
  .tree-controls { grid-template-columns: 1fr auto; }
  .tree-search { grid-column: 1 / -1; }
  .tree-expand-actions { grid-column: 1 / -1; }
  .tree-summary { align-items: flex-start; flex-direction: column; gap: 7px; }
  .tree-summary p { text-align: left; }
  .network-tree { padding: 9px 8px 13px; }
  .tree-node > summary,
  .tree-leaf { grid-template-columns: minmax(0, 1fr) 70px; gap: 8px 12px; padding: 9px 8px; }
  .tree-meter { grid-column: 1 / -1; grid-row: 2; height: 4px; margin-left: 31px; width: calc(100% - 31px); }
  .tree-row-value { grid-column: 2; grid-row: 1; }
  .tree-children { margin-left: 12px; padding-left: 10px; }
  .tree-children > .tree-node::before,
  .tree-children > .tree-leaf::before { left: -10px; width: 7px; }
  .tree-label-line strong,
  .tree-label-line a { font-size: 11px; }
  .table-actions { justify-content: stretch; }
  .search-field { flex: 1 1 100%; }
  .table-actions input { width: 100%; }
  .filter-field { flex: 1; }
  .table-actions select { width: 100%; }
  .table-wrap { overflow: visible; }
  table, thead, tbody, tr, th, td { display: block; }
  thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  tbody { display: grid; gap: 8px; padding: 0 10px 10px; }
  tbody tr { padding: 13px; border: 1px solid var(--line); border-radius: 15px; background: rgba(255,255,255,.018); }
  td { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 8px 0; border: 0; text-align: right !important; }
  td::before { content: attr(data-label); color: var(--ink-muted); font-family: var(--font-data); font-size: 8px; letter-spacing: .06em; text-align: left; text-transform: uppercase; }
  td:first-child { display: block; padding-bottom: 13px; margin-bottom: 4px; border-bottom: 1px solid var(--line); text-align: left !important; }
  td:first-child::before { display: none; }
  .property-cell { min-width: 0; }
  .property-cell small { max-width: 70vw; }
  .table-footer { align-items: flex-start; flex-direction: column; }
  .methodology { grid-template-columns: 1fr; gap: 22px; padding-top: 60px; }
  .methodology-grid { grid-template-columns: 1fr; }
  .source-footnote { grid-column: 1; }
  .observatory-footer { flex-wrap: wrap; }
  .observatory-footer a { width: 100%; margin-left: 0; }
}

@media (max-width: 470px) {
  .observatory-brand small { display: none; }
  .back-link { border: 0; background: transparent; }
  .back-link span { display: none; }
  .freshness-line { align-items: flex-start; flex-direction: column; }
  .freshness-divider { display: none; }
  .kpi-grid { grid-template-columns: 1fr; }
  .kpi-card:last-child { grid-column: auto; }
  .chart-controls { display: grid; grid-template-columns: 1fr; }
  .health-list { grid-template-columns: 1fr; }
  .content-row { grid-template-columns: 1fr 40px; gap: 8px; }
  .content-label { grid-column: 1 / -1; }
  .destination-metrics { grid-template-columns: 1fr 1fr; }
  .destination-metrics > div:last-child { grid-column: 1 / -1; }
  .tree-controls { grid-template-columns: 1fr; }
  .tree-mode-switch,
  .tree-search,
  .tree-expand-actions { grid-column: 1; }
  .tree-type { display: none; }
  .tree-summary > div { width: 100%; justify-content: space-between; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 1ms !important; animation-iteration-count: 1 !important; transition-duration: 1ms !important; }
}

@media print {
  :root { --page: calc(100% - 24px); }
  body, .observatory-shell { background: #fff; color: #111827; }
  .ambient-grid, .period-panel, .back-link, .coverage-notice a, .table-actions, .tree-controls, .chart-tooltip { display: none !important; }
  .observatory-header { position: static; background: #fff; border-color: #d7dce3; }
  .glass-panel, .kpi-card, .destination-card, .coverage-notice { break-inside: avoid; background: #fff; border-color: #d7dce3; box-shadow: none; }
  .panel-heading > p:last-child, .section-heading > p, .kpi-card p, .health-list span, .definition p, .freshness-line, .destination-description { color: #5b6472; }
  .observatory-main { padding-top: 30px; }
  .tree-node:not([open]) > .tree-children { display: block !important; }
  .tree-caret::before { display: none; }
}