/* Phantom Signal readable packet site */
:root {
  color-scheme: dark;
  --bg: #07080d;
  --bg-soft: #0e1420;
  --panel: rgba(17, 23, 36, 0.92);
  --panel-2: rgba(10, 15, 25, 0.94);
  --line: rgba(128, 232, 255, 0.18);
  --line-soft: rgba(255,255,255,0.09);
  --text: #eef6ff;
  --muted: #a9b7cf;
  --faint: #7f8ba3;
  --cyan: #73efff;
  --blue: #4cb9ff;
  --purple: #9a86ff;
  --green: #93ffbf;
  --gold: #ffd982;
  --red: #ff99aa;
  --shadow: 0 28px 80px rgba(0,0,0,.42);
  --radius: 24px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 16% 0%, rgba(76,185,255,.18), transparent 28rem),
    radial-gradient(circle at 84% 10%, rgba(154,134,255,.15), transparent 26rem),
    linear-gradient(180deg, #05060b 0%, #0a111d 44%, #05060b 100%);
  line-height: 1.6;
}
a { color: var(--cyan); text-decoration-thickness: .08em; text-underline-offset: .18em; }
a:hover { color: #fff; }
.wrap { width: min(1160px, calc(100% - 36px)); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 12px; padding: 10px 14px; background: var(--cyan); color: #041019; border-radius: 10px; z-index: 50; }
.skip:focus { left: 12px; }
.topbar {
  position: sticky; top: 0; z-index: 20;
  border-bottom: 1px solid var(--line-soft);
  background: rgba(5, 7, 12, .78);
  backdrop-filter: blur(16px);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 14px 0; }
.brand { display: flex; flex-direction: column; text-decoration: none; color: var(--text); line-height: 1.05; }
.brand strong { letter-spacing: .18em; text-transform: uppercase; font-size: 14px; }
.brand span { color: var(--muted); font-size: 12px; }
.links { display: flex; gap: 14px; flex-wrap: wrap; justify-content: flex-end; font-size: 13px; }
.links a { color: var(--muted); text-decoration: none; }
.links a:hover { color: var(--text); }
.hero { padding: 72px 0 36px; display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(300px, .88fr); gap: 30px; align-items: center; }
.kicker { color: var(--cyan); font-weight: 800; letter-spacing: .2em; text-transform: uppercase; font-size: 12px; margin-bottom: 16px; }
h1 { font-size: clamp(42px, 8vw, 84px); line-height: .98; letter-spacing: -.055em; margin: 0 0 20px; }
h1 .accent, h2 .accent { color: var(--cyan); }
.lead { max-width: 760px; color: #d7e3f5; font-size: clamp(18px, 2.1vw, 23px); margin: 0; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 12px 16px; border-radius: 14px; font-weight: 800; text-decoration: none; border: 1px solid var(--line-soft); color: var(--text); background: rgba(255,255,255,.04); }
.btn.primary { background: linear-gradient(90deg, var(--cyan), var(--blue)); color: #031019; border: 0; }
.btn:hover { transform: translateY(-1px); }
.hero-card { border: 1px solid var(--line); background: var(--panel); border-radius: 30px; box-shadow: var(--shadow); overflow: hidden; }
.hero-card img { width: 100%; display: block; aspect-ratio: 16 / 10; object-fit: cover; filter: saturate(1.05) contrast(1.04); }
.hero-card .caption { padding: 18px; color: var(--muted); font-size: 14px; }
section { padding: 42px 0; }
.section-head { margin-bottom: 22px; }
h2 { margin: 0 0 10px; font-size: clamp(30px, 4.4vw, 52px); line-height: 1.05; letter-spacing: -.04em; }
h3 { margin: 0 0 10px; font-size: 21px; line-height: 1.2; }
p { margin-top: 0; }
.sub { color: var(--muted); max-width: 850px; font-size: 17px; }
.grid { display: grid; gap: 16px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card, .callout, .timeline li, .doc-card {
  border: 1px solid var(--line-soft);
  background: var(--panel);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 14px 46px rgba(0,0,0,.22);
}
.card.highlight { border-color: var(--line); background: linear-gradient(180deg, rgba(115,239,255,.08), rgba(17,23,36,.92)); }
.card p, .doc-card p { color: var(--muted); margin-bottom: 0; }
.eyebrow { display: inline-flex; margin-bottom: 10px; color: var(--cyan); font-size: 12px; text-transform: uppercase; letter-spacing: .16em; font-weight: 800; }
.stat strong { display: block; color: var(--cyan); font-size: 30px; line-height: 1; margin-bottom: 8px; }
.stat span { color: var(--muted); font-size: 14px; }
.pill-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.pill { border: 1px solid var(--line-soft); background: rgba(255,255,255,.04); color: var(--muted); border-radius: 999px; padding: 6px 10px; font-size: 13px; }
.good { color: var(--green); }
.warn { color: var(--gold); }
.red { color: var(--red); }
.flow { counter-reset: step; }
.flow .card { position: relative; padding-top: 54px; }
.flow .card::before {
  counter-increment: step; content: counter(step);
  position: absolute; top: 18px; left: 18px; width: 26px; height: 26px; border-radius: 50%;
  display: grid; place-items: center; background: rgba(115,239,255,.16); color: var(--cyan); font-weight: 900; border: 1px solid var(--line);
}
.timeline { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.timeline li { display: grid; grid-template-columns: 160px 1fr; gap: 18px; }
.timeline time, .label { color: var(--cyan); font-weight: 800; }
.code-list { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; color: #d9f8ff; font-size: 14px; }
.source-list { columns: 2; column-gap: 28px; padding-left: 18px; color: var(--muted); }
.source-list li { break-inside: avoid; margin-bottom: 8px; }
.notice { border-left: 4px solid var(--cyan); background: rgba(115,239,255,.08); padding: 16px 18px; border-radius: 14px; color: #dcecff; }
footer { padding: 36px 0 60px; color: var(--faint); font-size: 14px; border-top: 1px solid var(--line-soft); margin-top: 34px; }
@media (max-width: 920px) {
  .hero, .grid.two, .grid.three, .grid.four { grid-template-columns: 1fr; }
  .timeline li { grid-template-columns: 1fr; }
  .source-list { columns: 1; }
}
@media (max-width: 640px) {
  .wrap { width: min(100% - 24px, 1160px); }
  .links { display: none; }
  .hero { padding-top: 48px; }
  .card, .doc-card { padding: 18px; }
}