:root {
  --night: #07090e;
  --raised: #121722;
  --card: #1c2433;
  --ink: #f2f5fa;
  --mist: #9aa6ba;
  --line: #334055;
  --signal: #8eb0ff;
  --signal-ink: #0b1b4a;
  --live: #3ee0b0;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  --radius: 22px;
  --max: 1080px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Outfit", "Segoe UI", sans-serif;
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--ink);
  background:
    radial-gradient(900px 520px at 88% -8%, rgba(142, 176, 255, 0.18), transparent 58%),
    radial-gradient(640px 420px at -10% 18%, rgba(62, 224, 176, 0.07), transparent 52%),
    var(--night);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(242, 245, 250, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(242, 245, 250, 0.035) 1px, transparent 1px);
  background-size: 76px 76px;
  mask-image: radial-gradient(ellipse at 70% 0%, #000 12%, transparent 68%);
}

a { color: var(--signal); }

img { max-width: 100%; height: auto; display: block; }

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 5;
  background: var(--signal);
  color: var(--signal-ink);
  padding: 0.6rem 0.9rem;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
}

.skip:focus { top: 1rem; }

.wrap {
  width: min(var(--max), calc(100% - 2.4rem));
  margin-inline: auto;
}

header {
  position: sticky;
  top: 0;
  z-index: 4;
  backdrop-filter: blur(18px);
  background: rgba(7, 9, 14, 0.72);
  border-bottom: 1px solid rgba(51, 64, 85, 0.7);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: inherit;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.03em;
  font-size: 1.15rem;
}

.brand img {
  width: 38px;
  height: 38px;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  border-radius: 10px;
}

.brand .blue { color: #4c8dff; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-links a {
  color: var(--mist);
  text-decoration: none;
  font-weight: 500;
}

.nav-links a:hover { color: var(--ink); }

.hero {
  padding: 4.5rem 0 3.2rem;
}

h1 {
  margin: 0;
  font-size: clamp(3.1rem, 7vw, 5.4rem);
  line-height: 0.94;
  letter-spacing: -0.055em;
  font-weight: 600;
}

.lead {
  max-width: 38rem;
  margin: 1.25rem 0 0;
  color: var(--mist);
  font-size: 1.18rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.8rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 52px;
  padding: 0.75rem 1.15rem;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.02em;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--signal);
  color: var(--signal-ink);
}

.btn-primary:hover { filter: brightness(1.06); }

a[aria-disabled="true"] {
  opacity: 0.4;
  pointer-events: none;
  cursor: default;
}

.btn-ghost {
  background: rgba(18, 23, 34, 0.8);
  color: var(--ink);
  border-color: var(--line);
}

.btn-ghost:hover { border-color: var(--signal); }

.btn svg { flex: none; }

.fine {
  margin: 0.9rem 0 0;
  color: var(--mist);
  font-size: 0.92rem;
  max-width: 36rem;
}

.fine a { font-weight: 600; }

.apps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 0.4rem;
  align-items: center;
  padding: 1rem 0 2.4rem;
  color: var(--mist);
}

.apps span {
  color: var(--ink);
  font-weight: 600;
}

.apps i {
  font-style: normal;
  color: var(--line);
  padding-inline: 0.35rem;
}

.panel {
  background: rgba(18, 23, 34, 0.86);
  border: 1px solid rgba(51, 64, 85, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  padding-bottom: 1rem;
}

.step {
  padding: 1.35rem 1.3rem 1.45rem;
}

.step b {
  display: block;
  color: var(--signal);
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  margin-bottom: 0.7rem;
}

.step h2, .card h2, .prose h2 {
  margin: 0;
  font-size: 1.28rem;
  letter-spacing: -0.03em;
  font-weight: 600;
}

.step p, .card p {
  margin: 0.45rem 0 0;
  color: var(--mist);
}

.modes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 1rem 0 2.5rem;
}

.card { padding: 1.45rem 1.4rem 1.5rem; }

.card .label {
  margin: 0 0 0.35rem;
  color: var(--live);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

footer {
  border-top: 1px solid rgba(51, 64, 85, 0.75);
  padding: 1.3rem 0 2rem;
  color: var(--mist);
}

.foot {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.foot a { color: var(--mist); text-decoration: none; }
.foot a:hover { color: var(--ink); }

.page {
  padding: 3rem 0 4rem;
}

.prose {
  max-width: 44rem;
}

.prose h1 {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  margin-bottom: 0.6rem;
}

.prose .updated {
  color: var(--mist);
  margin-top: 0;
}

.prose h2 { margin-top: 2rem; }

.prose p, .prose li { color: #d5dce8; }

.prose ul { padding-left: 1.15rem; }

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

@media (max-width: 860px) {
  .hero, .steps, .modes {
    grid-template-columns: 1fr;
    display: grid;
  }

  .hero { padding-top: 2.6rem; }
  .nav-links { gap: 0.7rem; }
}