:root {
  --bg: #09121b;
  --bg-soft: #0f1b28;
  --surface: rgba(255, 255, 255, 0.05);
  --surface-strong: rgba(255, 255, 255, 0.08);
  --line: rgba(255, 255, 255, 0.12);
  --text: #eef5fb;
  --muted: #a8b7c6;
  --brand: #68f0ff;
  --accent: #b9ff68;
  --warm: #ffb56b;
  --danger: #ff8f8f;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.32);
  --radius: 20px;
  --content: 1120px;
}

* {
  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 top left, rgba(104, 240, 255, 0.16), transparent 28%),
    radial-gradient(circle at top right, rgba(255, 181, 107, 0.14), transparent 22%),
    linear-gradient(180deg, #071019 0%, #09121b 100%);
  line-height: 1.65;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

.container {
  width: min(var(--content), calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 0 28px;
}

.brand {
  font-size: 0.84rem;
  font-weight: 800;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.topbar nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.topbar nav a {
  color: var(--muted);
  font-size: 0.95rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(185, 255, 104, 0.08);
  color: var(--accent);
  font-size: 0.9rem;
}

.hero {
  padding: 24px 0 68px;
}

.hero-grid,
.grid-2,
.grid-3,
.facts {
  display: grid;
  gap: 18px;
}

.hero-grid {
  grid-template-columns: 1.25fr 0.8fr;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3,
.facts {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card,
.hero-copy,
.hero-side,
.fact,
.faq details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.hero-copy,
.hero-side,
.card {
  padding: 30px;
}

.eyebrow {
  color: var(--warm);
  font-size: 0.92rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

h1,
h2,
h3 {
  margin: 0 0 14px;
  line-height: 1.08;
}

h1 {
  font-size: clamp(2.6rem, 5.8vw, 4.8rem);
  max-width: 10ch;
}

h2 {
  font-size: clamp(1.7rem, 4vw, 2.5rem);
}

h3 {
  font-size: 1.14rem;
}

p,
li {
  color: var(--muted);
}

.lead {
  font-size: 1.08rem;
  max-width: 65ch;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 14px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--brand));
  color: #071019;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--line);
  color: var(--text);
}

.mini {
  font-size: 0.93rem;
}

.stat {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.stat strong {
  display: block;
  font-size: 1.58rem;
  color: var(--text);
  margin-bottom: 5px;
}

main {
  padding-bottom: 80px;
}

section {
  padding: 16px 0;
}

ul {
  padding-left: 18px;
  margin: 0;
}

li + li {
  margin-top: 10px;
}

.steps {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.step {
  padding: 18px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.step strong,
.fact strong {
  color: var(--text);
}

.fact {
  padding: 18px;
}

.fact .label {
  display: block;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 6px;
}

.note {
  padding-left: 14px;
  border-left: 3px solid var(--warm);
}

.faq details {
  padding: 18px 20px;
}

.faq details + details {
  margin-top: 14px;
}

.faq summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--text);
}

.article-hero {
  padding: 28px 0 34px;
}

.article-hero h1 {
  max-width: none;
}

.article {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 20px;
  align-items: start;
}

.article aside {
  position: sticky;
  top: 20px;
}

.article aside .card,
.article .card {
  padding: 24px;
}

.article aside ul {
  list-style: none;
  padding: 0;
}

.article aside li + li {
  margin-top: 10px;
}

.breadcrumbs {
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 0.95rem;
}

.breadcrumbs a {
  color: var(--muted);
}

footer {
  padding: 24px 0 56px;
  color: var(--muted);
  font-size: 0.94rem;
}

@media (max-width: 940px) {
  .hero-grid,
  .grid-2,
  .grid-3,
  .facts,
  .article {
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .hero-side,
  .card,
  .article aside .card,
  .article .card {
    padding: 24px;
  }

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

  .article aside {
    position: static;
  }
}