:root {
  color-scheme: dark;
  --bg: #03061e;
  --surface: #050816;
  --panel: #0a1024;
  --panel-raised: #0f1630;
  --border: #1a2445;
  --text: #f5f7ff;
  --muted: #aab4d6;
  --cyan: #50d9ff;
  --violet: #9f7cff;
  --magenta: #f05bd7;
  --max: 70rem;
}

* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 0%, rgba(88, 67, 190, .18), transparent 32rem),
    radial-gradient(circle at 88% 10%, rgba(29, 179, 220, .12), transparent 28rem),
    var(--bg);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", sans-serif;
}
a { color: var(--cyan); text-underline-offset: .2em; }
a:hover { color: #a8eeff; }
img { display: block; max-width: 100%; height: auto; }
.site-header, main, .site-footer { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; }
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 5.25rem;
  border-bottom: 1px solid var(--border);
}
.brand { display: inline-flex; align-items: center; gap: .7rem; color: var(--text); text-decoration: none; font-weight: 750; letter-spacing: .02em; }
.brand img { width: 2.5rem; height: auto; aspect-ratio: 1 / 1; object-fit: contain; }
nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .35rem 1.1rem; }
nav a { color: var(--muted); text-decoration: none; }
nav a[aria-current="page"], nav a:hover { color: var(--text); }
main { padding-block: clamp(3rem, 8vw, 7rem); }
.hero { min-height: min(68vh, 46rem); display: grid; place-items: center; text-align: center; }
.hero-inner { max-width: 46rem; }
.hero-mark { position: relative; isolation: isolate; width: clamp(280px, 28vw, 320px); max-width: 100%; margin: 0 auto 1.5rem; }
.hero-mark::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -18%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 38% 38%, rgba(65, 210, 255, .16), transparent 52%),
    radial-gradient(circle at 64% 54%, rgba(137, 92, 255, .14), transparent 56%),
    radial-gradient(circle at 54% 68%, rgba(240, 91, 215, .07), transparent 48%);
  filter: blur(28px);
  opacity: .82;
  pointer-events: none;
}
.hero-logo { width: 100%; height: auto; max-width: 100%; aspect-ratio: 1 / 1; object-fit: contain; filter: drop-shadow(0 1.5rem 3rem rgba(54, 109, 255, .22)); }
.eyebrow { color: var(--cyan); font-size: .78rem; font-weight: 750; letter-spacing: .16em; text-transform: uppercase; }
.tagline { margin: -.25rem 0 .6rem; color: #d8d0ff; font-size: clamp(.92rem, 1.8vw, 1.05rem); font-weight: 650; letter-spacing: .025em; }
h1, h2, h3 { line-height: 1.2; text-wrap: balance; }
h1 { margin: .5rem 0 1rem; font-size: clamp(2.8rem, 8vw, 5.5rem); letter-spacing: -.045em; }
h2 { margin-top: 2.8rem; font-size: clamp(1.45rem, 3vw, 2rem); }
h3 { margin-top: 1.8rem; font-size: 1.1rem; }
.lede { color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.3rem); }
.accent { background: linear-gradient(90deg, var(--cyan), var(--violet), var(--magenta)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.link-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 2.4rem; text-align: left; }
.card, .document { border: 1px solid var(--border); background: linear-gradient(145deg, rgba(15, 22, 48, .94), rgba(5, 8, 22, .96)); border-radius: 1rem; }
.card { padding: 1.2rem; color: var(--text); text-decoration: none; transition: transform .16s ease, border-color .16s ease, box-shadow .16s ease, background-color .16s ease; }
.card strong { display: block; margin-bottom: .15rem; }
.card span { color: var(--muted); font-size: .9rem; }
.card:hover { border-color: #6dcff1; background-color: rgba(15, 22, 48, .98); box-shadow: 0 .65rem 1.6rem rgba(66, 102, 210, .12); transform: translateY(-2px); }
.card:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; border-color: var(--violet); box-shadow: 0 .65rem 1.6rem rgba(112, 86, 220, .16); transform: translateY(-2px); }
.hero-page nav a { border-radius: .25rem; transition: color .14s ease, text-shadow .14s ease; }
.hero-page nav a:hover { color: var(--text); text-shadow: 0 0 1rem rgba(80, 217, 255, .32); }
.hero-page nav a:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; color: var(--text); text-decoration: underline; }
.document { max-width: 54rem; padding: clamp(1.25rem, 4vw, 3.5rem); margin-inline: auto; }
.document > header { padding-bottom: 1.5rem; border-bottom: 1px solid var(--border); }
.document h1 { font-size: clamp(2.1rem, 6vw, 3.7rem); }
.document p, .document li { color: #dce2f5; }
.document li + li { margin-top: .45rem; }
.notice { padding: 1rem 1.1rem; border: 1px solid #684e98; border-radius: .75rem; background: rgba(94, 62, 150, .18); color: #eee7ff; }
.placeholder { padding: .75rem 1rem; border-left: 3px solid var(--magenta); background: rgba(240, 91, 215, .08); }
details { margin-block: 1rem; padding: .9rem 1rem; border: 1px solid var(--border); border-radius: .75rem; background: var(--surface); }
summary { cursor: pointer; font-weight: 700; }
pre { overflow-x: auto; white-space: pre-wrap; color: #dce2f5; font: .78rem/1.45 ui-monospace, "Cascadia Mono", monospace; }
.site-footer { display: flex; justify-content: space-between; gap: 1rem; padding-block: 2rem; border-top: 1px solid var(--border); color: var(--muted); font-size: .88rem; }
.site-footer p { margin: 0; }
@media (max-width: 42rem) {
  .site-header, .site-footer { align-items: flex-start; flex-direction: column; padding-block: 1rem; }
  .site-header { justify-content: center; }
  nav { justify-content: flex-start; }
  .link-grid { grid-template-columns: 1fr; }
  .hero-mark { width: min(58vw, 220px); }
  .hero-mark::before { inset: -14%; filter: blur(22px); opacity: .72; }
  main { padding-block: 2.5rem; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .card, .hero-page nav a { transition: none; } .card { transform: none !important; } }