:root {
  --bg: #0b0f14;
  --bg2: #121820;
  --bg3: #1a2330;
  --line: #2a3544;
  --text: #e8eef5;
  --muted: #8b9aab;
  --accent: #f7931a;
  --ok: #3dd68c;
  --warn: #f5a524;
  --bad: #f07178;
  --info: #5bb8ff;
  --font: "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 980px; margin: 0 auto; padding: 0 1.25rem 4rem; }

.topnav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(11, 15, 20, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topnav-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.1rem;
  align-items: center;
  justify-content: space-between;
}
.brand {
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.02em;
  text-decoration: none;
}
.brand:hover { color: var(--accent); text-decoration: none; }
.brand span { color: var(--accent); }
.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
  font-size: 0.9rem;
}
.nav-links a { color: var(--muted); text-decoration: none; }
.nav-links a:hover,
.nav-links a.active { color: var(--text); }

.hero {
  padding: 2.5rem 0 1.5rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2rem;
}
.eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.75rem;
}
h1 {
  font-size: clamp(1.6rem, 4vw, 2.35rem);
  line-height: 1.2;
  margin: 0 0 0.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.lede {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 42rem;
  margin: 0 0 1.25rem;
}
.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg2);
  color: var(--muted);
}
.pill.ok { color: var(--ok); border-color: rgba(61, 214, 140, 0.35); }
.pill.warn { color: var(--warn); border-color: rgba(245, 165, 36, 0.35); }
.pill.info { color: var(--info); border-color: rgba(91, 184, 255, 0.35); }
.pill.bad { color: var(--bad); border-color: rgba(240, 113, 120, 0.35); }

.btn-row { display: flex; flex-wrap: wrap; gap: 0.65rem; margin-top: 1rem; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: #111; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--muted); background: var(--bg2); }

.panel {
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.25rem 1.35rem;
  margin-bottom: 1.25rem;
}
.panel h2, .panel h3 { margin-top: 0; }
h2 {
  font-size: 1.25rem;
  margin: 2.25rem 0 0.85rem;
  letter-spacing: -0.01em;
}
h3 { font-size: 1.05rem; margin: 1.35rem 0 0.55rem; }
p { margin: 0 0 0.9rem; color: var(--muted); }
p strong, li strong { color: var(--text); }
.panel p:last-child, .panel ul:last-child { margin-bottom: 0; }

.grid2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.grid3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
@media (max-width: 720px) {
  .grid2, .grid3 { grid-template-columns: 1fr; }
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
}
.stat {
  background: var(--bg3);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.85rem 0.95rem;
}
.stat .label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 0.35rem;
}
.stat .value {
  font-family: var(--mono);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  word-break: break-all;
}
.stat .value.accent { color: var(--accent); }
.stat .value.ok { color: var(--ok); }
.stat .value.warn { color: var(--warn); }
.stat .sub {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

.bar {
  height: 10px;
  background: var(--bg3);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--line);
  margin: 0.75rem 0 0.35rem;
}
.bar > i {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #c97812, var(--accent));
  border-radius: 999px;
  transition: width 0.4s ease;
}
.bar.threshold { position: relative; }
.bar.threshold::after {
  content: "";
  position: absolute;
  left: 55%;
  top: -3px;
  bottom: -3px;
  width: 2px;
  background: var(--ok);
  opacity: 0.85;
}

.card-link {
  display: block;
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.1rem 1.2rem;
  color: inherit;
  text-decoration: none;
  transition: border-color 0.15s, background 0.15s;
}
.card-link:hover {
  border-color: var(--accent);
  background: var(--bg3);
  text-decoration: none;
}
.card-link h3 {
  margin: 0 0 0.4rem;
  color: var(--text);
  font-size: 1rem;
}
.card-link p {
  margin: 0;
  font-size: 0.9rem;
}

.rule {
  border-left: 3px solid var(--accent);
  padding-left: 0.9rem;
  margin: 0.9rem 0;
}
.rule h4 {
  margin: 0 0 0.3rem;
  font-size: 0.95rem;
  color: var(--text);
}
.rule p { margin: 0; font-size: 0.9rem; }

ul.clean, ol.clean {
  margin: 0 0 1rem;
  padding-left: 1.2rem;
  color: var(--muted);
}
ul.clean li, ol.clean li { margin-bottom: 0.45rem; }

.faq details {
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  margin-bottom: 0.55rem;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
}
.faq details[open] summary { margin-bottom: 0.55rem; }
.faq details p { margin: 0; font-size: 0.92rem; }

.timeline {
  border-left: 2px solid var(--line);
  margin: 1rem 0 0 0.4rem;
  padding-left: 1.1rem;
}
.timeline .item { margin-bottom: 1.1rem; position: relative; }
.timeline .item::before {
  content: "";
  position: absolute;
  left: -1.35rem;
  top: 0.4rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}
.timeline .when {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 0.2rem;
}
.timeline .what { color: var(--muted); font-size: 0.92rem; }

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
table.data th,
table.data td {
  text-align: left;
  padding: 0.55rem 0.65rem;
  border-bottom: 1px solid var(--line);
}
table.data th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
table.data td { font-family: var(--mono); color: var(--text); }
table.data td.pct-ok { color: var(--ok); }
table.data td.pct-low { color: var(--warn); }

.chart-wrap {
  background: var(--bg3);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.75rem;
  overflow: hidden;
}
.chart-wrap svg { width: 100%; height: auto; display: block; }

.block-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14px, 1fr));
  gap: 3px;
}
.block-cell {
  aspect-ratio: 1;
  border-radius: 2px;
  background: var(--bg3);
  border: 1px solid var(--line);
}
.block-cell.signal { background: var(--ok); border-color: rgba(61, 214, 140, 0.5); }
.block-cell.nosignal { background: #2a3340; }
.block-cell.pending { opacity: 0.4; }
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.65rem;
}
.legend i {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  margin-right: 0.35rem;
  vertical-align: middle;
}

.article {
  border-bottom: 1px solid var(--line);
  padding: 1rem 0;
}
.article:last-child { border-bottom: 0; }
.article h3 { margin: 0 0 0.3rem; font-size: 1rem; }
.article .by {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
}
.article p { margin: 0; font-size: 0.9rem; }

.note {
  font-size: 0.85rem;
  color: var(--muted);
  border-left: 3px solid var(--line);
  padding-left: 0.75rem;
  margin: 1rem 0;
}
.note.warn { border-color: var(--warn); }
.note.bad { border-color: var(--bad); }

.footer-note {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--muted);
}
.footer-note a { color: var(--muted); }
.footer-note a:hover { color: var(--accent); }

.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.scan-status { font-size: 0.82rem; color: var(--muted); min-height: 1.2em; }
.table-scroll { overflow-x: auto; }