:root {
  --bg: #070a14;
  --bg-2: #0b1020;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-2: rgba(255, 255, 255, 0.09);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.72);
  --faint: rgba(255, 255, 255, 0.56);
  --border: rgba(255, 255, 255, 0.12);
  --border-2: rgba(255, 255, 255, 0.18);
  --shadow: 0 18px 70px rgba(0, 0, 0, 0.48);
  --brand: #68d391;
  --brand-2: #60a5fa;
  --brand-3: #a78bfa;
  --radius: 18px;
  --max: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    Helvetica,
    Arial,
    "Apple Color Emoji",
    "Segoe UI Emoji";
  color: var(--text);
  background:
    radial-gradient(900px 520px at 14% 0%, rgba(104, 211, 145, 0.18), transparent 60%),
    radial-gradient(780px 520px at 92% 10%, rgba(96, 165, 250, 0.16), transparent 55%),
    radial-gradient(720px 540px at 70% 90%, rgba(167, 139, 250, 0.12), transparent 62%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
  line-height: 1.55;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: var(--max);
  padding: 0 20px;
  margin: 0 auto;
}

.container-narrow {
  max-width: 860px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 10px;
  background: #111827;
  color: #fff;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  z-index: 10;
}

.skip-link:focus {
  left: 10px;
}

*:focus-visible {
  outline: 2px solid rgba(96, 165, 250, 0.65);
  outline-offset: 3px;
  border-radius: 10px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  background: rgba(7, 10, 20, 0.72);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.brand-mark {
  display: block;
}

.brand-text {
  font-size: 16px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
  padding: 8px 10px;
  border-radius: 999px;
}

.nav a:hover {
  color: var(--text);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.06);
}

.nav a.active {
  color: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.06);
}

/* Hero */
.hero {
  padding: 64px 0 34px;
}

.hero-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: start;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--faint);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 12px;
  font-size: 46px;
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.lead {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 16px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 18px 0 16px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 15px;
  border-radius: 14px;
  font-weight: 750;
  border: 1px solid rgba(104, 211, 145, 0.38);
  background: linear-gradient(180deg, rgba(104, 211, 145, 0.18), rgba(104, 211, 145, 0.08));
  box-shadow: var(--shadow);
}

.button:hover {
  text-decoration: none;
  border-color: rgba(104, 211, 145, 0.6);
}

.button-secondary {
  border-color: rgba(96, 165, 250, 0.38);
  background: linear-gradient(180deg, rgba(96, 165, 250, 0.16), rgba(96, 165, 250, 0.07));
  box-shadow: none;
}

.button-secondary:hover {
  border-color: rgba(96, 165, 250, 0.6);
}

.note {
  margin: 10px 0 0;
  color: var(--faint);
  font-size: 13px;
}

.hero-card {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.045));
  border-radius: var(--radius);
  padding: 18px;
}

.card-title {
  margin: 0 0 12px;
  font-size: 16px;
}

.facts {
  margin: 0;
}

.fact {
  padding: 12px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.fact:first-child {
  border-top: 0;
  padding-top: 0;
}

.facts dt {
  color: var(--faint);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 800;
  margin-bottom: 3px;
}

.facts dd {
  margin: 0;
  color: var(--muted);
  font-weight: 600;
}

/* Sections */
.section {
  padding: 44px 0;
}

.section-alt {
  background: rgba(255, 255, 255, 0.03);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.section-head {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

h2 {
  margin: 0 0 10px;
  font-size: 26px;
  letter-spacing: -0.01em;
}

.section-lead {
  margin: 0 0 18px;
  color: var(--muted);
  max-width: 78ch;
}

.grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.tile {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.045));
  border-radius: var(--radius);
  padding: 16px;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.tile:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.18);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.085), rgba(255, 255, 255, 0.05));
}

.tile h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.tile p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: start;
}

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

.checklist {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.045));
  border-radius: var(--radius);
  padding: 16px;
}

.check {
  padding: 10px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
  font-weight: 650;
}

.check:first-child {
  border-top: 0;
  padding-top: 0;
}

.check::before {
  content: "\2713";
  display: inline-block;
  margin-right: 10px;
  color: var(--brand);
  font-weight: 900;
}

/* Page hero + prose */
.page-hero {
  padding: 44px 0 10px;
}

.prose {
  max-width: 78ch;
}

.prose h2 {
  margin-top: 26px;
}

.prose p {
  color: var(--muted);
}

/* Footer */
.site-footer {
  padding: 26px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 18px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.footer-muted {
  margin-top: 6px;
  color: var(--faint);
  font-size: 13px;
}

.footer-right {
  display: flex;
  gap: 14px;
  align-items: center;
}

.footer-right a {
  color: var(--faint);
  font-weight: 650;
  font-size: 14px;
}

/* Responsive */
@media (max-width: 920px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  h1 {
    font-size: 36px;
  }
  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .nav {
    gap: 10px;
  }
  .grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tile {
    transition: none;
  }
  .tile:hover {
    transform: none;
  }
}