:root {
  --bg: #05070b;
  --bg-elev: rgba(8, 14, 24, 0.88);
  --bg-elev-2: #0c1524;
  --font: "Barlow", "Segoe UI", sans-serif;
  --display: "Rajdhani", "Arial Narrow", sans-serif;
}
body { background: #03050a; }
.sheet {
  margin: 14px;
  min-height: calc(100vh - 28px);
  border: 1px solid rgba(41, 119, 255, 0.65);
  position: relative;
  background-color: #070b12;
  background-image:
    linear-gradient(rgba(41, 119, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(41, 119, 255, 0.07) 1px, transparent 1px);
  background-size: 32px 32px;
  padding-bottom: 8px;
}
.sheet::before, .sheet::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 1px solid var(--blue);
}
.sheet::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.sheet::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }
.ticks { position: absolute; inset: 0; pointer-events: none; }
.ticks i { position: absolute; width: 14px; height: 14px; border: 1px solid rgba(41, 119, 255, 0.9); }
.ticks i:nth-child(1) { top: 8px; left: 8px; border-right: 0; border-bottom: 0; }
.ticks i:nth-child(2) { top: 8px; right: 8px; border-left: 0; border-bottom: 0; }
.ticks i:nth-child(3) { bottom: 8px; left: 8px; border-right: 0; border-top: 0; }
.ticks i:nth-child(4) { bottom: 8px; right: 8px; border-left: 0; border-top: 0; }
.tb-head, .tb-nav, .rev {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 18px;
  font-family: "Share Tech Mono", ui-monospace, monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.tb-head { border-bottom: 1px solid rgba(41, 119, 255, 0.45); }
.brand img { height: 42px; width: auto; }
.tb-id { display: flex; gap: 18px; color: var(--silver); }
.tb-nav {
  justify-content: flex-start;
  flex-wrap: wrap;
  border-bottom: 1px solid rgba(41, 119, 255, 0.35);
}
.tb-nav a { color: var(--silver); text-decoration: none; padding: 6px 0; }
.tb-nav a[aria-current="page"] { color: #fff; box-shadow: inset 0 -2px 0 var(--blue); }
.rev {
  margin: 28px 18px 16px;
  border: 1px solid rgba(41, 119, 255, 0.55);
  display: grid;
  grid-template-columns: 1.6fr repeat(4, 0.7fr);
  padding: 0;
  background: rgba(5, 8, 14, 0.85);
}
.rev div { padding: 8px 10px; border-left: 1px solid rgba(41, 119, 255, 0.35); }
.rev div:first-child { border-left: 0; }
.rev span { display: block; color: var(--blue); font-size: 10px; }
.rev strong { color: var(--text); font-weight: 500; }
.page-hero { padding-top: 36px; }
.hero { padding: 36px var(--pad) 10px; }
.hero-logo { width: min(760px, 100%); margin-bottom: 18px; }
.hero h1 { font-size: clamp(42px, 6vw, 80px); max-width: 16ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
.bom .num { font-family: "Share Tech Mono", monospace; }
@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .sheet { margin: 0; border-left: 0; border-right: 0; min-height: 100vh; }
  .tb-id { display: none; }
  .tb-nav { display: none; flex-direction: column; align-items: flex-start; }
  .tb-nav.is-open { display: flex; }
  .rev { grid-template-columns: 1fr 1fr; }
}
.tb-nav a.btn,
.tb-nav a.btn:hover { color: #0a0a0a; text-decoration: none; }