:root {
  color-scheme: dark;
  --ink: #f4fbff;
  --muted: #a7bac7;
  --paper: #05080b;
  --panel: #101820;
  --panel-strong: #16242d;
  --cyan: #46d7ff;
  --amber: #ffd34d;
  --red: #ff6b58;
  --green: #75e3a7;
  --line: rgba(244, 251, 255, 0.13);
  --shadow: 0 24px 64px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: ui-rounded, "SF Pro Rounded", "Avenir Next", system-ui, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 0%, rgba(70, 215, 255, 0.22), transparent 32rem),
    radial-gradient(circle at 100% 18%, rgba(255, 107, 88, 0.2), transparent 30rem),
    linear-gradient(180deg, #071018, var(--paper) 64%);
}

a {
  color: var(--cyan);
  font-weight: 800;
}

.site-shell {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}

.brand img {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.35);
}

.brand span {
  font-size: 1.25rem;
  font-weight: 900;
}

.nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 36px;
  align-items: center;
  padding: 56px 0 44px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--amber);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  max-width: 780px;
  font-size: clamp(2.4rem, 7vw, 5rem);
  line-height: 0.94;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(1.45rem, 3vw, 2.05rem);
  letter-spacing: 0;
}

h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

p,
li {
  font-size: 1.06rem;
  line-height: 1.65;
}

.lead {
  max-width: 720px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.24rem;
}

.hero-art {
  display: grid;
  place-items: center;
  min-height: 280px;
}

.hero-art img {
  width: min(240px, 72vw);
  border-radius: 30px;
  filter: drop-shadow(0 24px 42px rgba(70, 215, 255, 0.24));
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 8px;
  background: var(--cyan);
  color: #071018;
  text-decoration: none;
  font-weight: 900;
}

.button.secondary {
  background: var(--panel);
  color: var(--ink);
  border: 1px solid var(--line);
}

.band {
  padding: 34px 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card,
.doc {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(16, 24, 32, 0.86);
  box-shadow: var(--shadow);
}

.card {
  padding: 22px;
}

.card p,
.doc .updated {
  color: var(--muted);
}

.doc {
  max-width: 860px;
  margin: 28px auto 56px;
  padding: clamp(22px, 5vw, 44px);
}

.doc header {
  border-bottom: 1px solid var(--line);
  padding-bottom: 22px;
  margin-bottom: 28px;
}

.doc .updated {
  margin: 10px 0 0;
}

.doc section {
  margin-top: 30px;
}

.support-list {
  padding-left: 22px;
}

.footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  padding: 24px 0 38px;
}

@media (max-width: 760px) {
  .topbar,
  .hero {
    grid-template-columns: 1fr;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    padding-top: 26px;
  }

  .hero-art {
    min-height: 180px;
  }

  .grid {
    grid-template-columns: 1fr;
  }
}