:root {
  color-scheme: dark;
  --bg: #03040b;
  --panel: rgba(8, 13, 27, 0.88);
  --cyan: #00e5ff;
  --pink: #ff2db2;
  --text: #f4f7ff;
  --muted: #a9b6ce;
  --line: rgba(0, 229, 255, 0.22);
}

* { box-sizing: border-box; }

html { min-height: 100%; background: var(--bg); }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  background:
    radial-gradient(circle at 18% 0%, rgba(255, 45, 178, .13), transparent 34rem),
    radial-gradient(circle at 88% 20%, rgba(0, 229, 255, .12), transparent 38rem),
    linear-gradient(rgba(0, 229, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, .035) 1px, transparent 1px),
    var(--bg);
  background-size: auto, auto, 42px 42px, 42px 42px, auto;
}

a { color: var(--cyan); text-underline-offset: 4px; }
a:hover { color: #76f3ff; }

.shell { width: min(900px, calc(100% - 36px)); margin: 0 auto; }

header {
  border-bottom: 1px solid var(--line);
  background: rgba(3, 4, 11, .82);
  backdrop-filter: blur(14px);
}

.nav {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: .03em;
}

.orb {
  width: 30px;
  height: 30px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  box-shadow: inset 0 0 10px var(--pink), 0 0 14px rgba(0, 229, 255, .5);
  background: radial-gradient(circle, var(--pink) 0 18%, transparent 22% 43%, var(--cyan) 46% 49%, transparent 52%);
}

nav { display: flex; gap: 22px; }
nav a { color: var(--muted); text-decoration: none; font-weight: 650; }
nav a[aria-current="page"], nav a:hover { color: var(--cyan); }

main { padding: 70px 0 90px; }

.eyebrow {
  color: var(--pink);
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
}

h1 { margin: 8px 0 18px; font-size: clamp(2.35rem, 7vw, 4.8rem); line-height: 1.02; letter-spacing: -.045em; }
h2 { margin: 2.2rem 0 .65rem; font-size: 1.35rem; line-height: 1.3; }
h3 { margin: 1.7rem 0 .4rem; font-size: 1.08rem; }
p, li { color: #d7dfef; }
.lede { max-width: 700px; color: var(--muted); font-size: 1.16rem; }

.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 38px; }
.card, .document {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 18px 60px rgba(0, 0, 0, .28);
}
.card { padding: 28px; border-radius: 18px; text-decoration: none; }
.card strong { display: block; color: var(--text); font-size: 1.16rem; }
.card span { color: var(--muted); }
.card:hover { border-color: rgba(255, 45, 178, .6); transform: translateY(-2px); }
.document { margin-top: 34px; padding: clamp(24px, 5vw, 52px); border-radius: 22px; }
.document ul { padding-left: 1.25rem; }
.meta { color: var(--muted); font-size: .92rem; }
.button {
  display: inline-block;
  margin-top: 16px;
  padding: 11px 17px;
  border: 1px solid var(--cyan);
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 750;
  box-shadow: 0 0 20px rgba(0, 229, 255, .12);
}

footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: .9rem; }

@media (max-width: 620px) {
  .nav { align-items: flex-start; flex-direction: column; padding: 18px 0; gap: 12px; }
  nav { gap: 18px; }
  main { padding-top: 48px; }
  .cards { grid-template-columns: 1fr; }
}


/* Download call-to-action */
.download-callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin: 30px 0 24px;
  padding: 24px;
  border: 1px solid rgba(0, 229, 255, .55);
  border-radius: 18px;
  background: rgba(0, 229, 255, .055);
  box-shadow: 0 0 28px rgba(0, 229, 255, .06);
}
.download-callout div { display: grid; gap: 6px; }
.download-callout strong { font-size: 1.12rem; }
.download-callout span { color: var(--muted); line-height: 1.55; }
.download-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid var(--cyan);
  border-radius: 12px;
  color: var(--cyan);
  background: rgba(0, 229, 255, .06);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
}
.download-button:hover {
  transform: translateY(-1px);
  background: rgba(0, 229, 255, .12);
  box-shadow: 0 0 22px rgba(0, 229, 255, .12);
}
.download-panel { margin-top: 30px; }
.download-panel .download-button { margin-top: 10px; }
@media (max-width: 720px) {
  .download-callout { align-items: stretch; flex-direction: column; }
  .download-button { width: 100%; white-space: normal; text-align: center; }
}