:root {
  color-scheme: light;
  --ink: #121820;
  --muted: #596475;
  --line: #d8dfeb;
  --surface: #ffffff;
  --soft: #f4f7fb;
  --brand: #125f9f;
  --brand-dark: #0d4779;
  --accent: #0f766e;
  --warn: #8a4b0f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(18, 95, 159, 0.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(18, 95, 159, 0.05) 1px, transparent 1px),
    var(--soft);
  background-size: 48px 48px;
  color: var(--ink);
  font-family: 'Aptos', 'Segoe UI', 'Trebuchet MS', sans-serif;
}

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

a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.hero,
.page-hero,
.band,
.split-band,
.footer {
  width: min(1120px, calc(100% - 32px));
  margin: 16px auto;
  border: 1px solid var(--line);
  background: var(--surface);
}

.hero,
.page-hero {
  min-height: 560px;
  display: grid;
  align-content: space-between;
  padding: 22px;
}

.page-hero {
  min-height: 360px;
}

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

.brand {
  margin-right: auto;
  color: var(--ink);
  font-weight: 800;
}

.nav a[aria-current='page'] {
  color: var(--accent);
  font-weight: 800;
}

.hero-content,
.page-title {
  max-width: 860px;
  padding: 70px 0 34px;
}

.page-title {
  padding-top: 42px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  max-width: 980px;
  font-size: clamp(40px, 7vw, 78px);
  line-height: 0.98;
}

.page-title h1 {
  font-size: clamp(36px, 6vw, 64px);
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.08;
}

h3 {
  margin-bottom: 8px;
  font-size: 20px;
}

p,
li {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

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

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  padding: 10px 16px;
  font-weight: 800;
}

.button.primary {
  background: var(--brand);
  color: #ffffff;
}

.button.secondary {
  border: 1px solid var(--line);
  background: #f8fbff;
}

.band,
.split-band {
  padding: 30px;
}

.section-head {
  max-width: 760px;
  margin-bottom: 22px;
}

.feature-grid,
.config-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

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

.feature-grid article,
.config-grid article,
.steps,
.security-list {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfe;
  padding: 18px;
}

.step-number {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--warn);
  font-size: 13px;
  font-weight: 900;
}

.split-band {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
  gap: 24px;
  align-items: start;
}

.steps {
  margin: 0;
  padding-left: 38px;
}

code {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #eef4fb;
  padding: 2px 6px;
  color: var(--ink);
}

.code-block {
  margin: 0;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #101820;
  padding: 18px;
  color: #eef7ff;
}

.code-block code {
  border: 0;
  background: transparent;
  color: inherit;
  padding: 0;
}

.security-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.security-list p {
  margin: 0;
}

.legal {
  max-width: 900px;
}

.legal h2 {
  margin-top: 28px;
  font-size: 28px;
}

.legal h2:first-child {
  margin-top: 0;
}

.footer {
  display: flex;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  padding: 18px 22px;
}

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

@media (max-width: 760px) {
  .hero,
  .page-hero,
  .band,
  .split-band,
  .footer {
    width: min(100% - 20px, 1120px);
    margin: 10px auto;
  }

  .hero,
  .page-hero {
    min-height: auto;
  }

  .hero-content,
  .page-title {
    padding: 48px 0 20px;
  }

  .feature-grid,
  .config-grid,
  .split-band,
  .security-list {
    grid-template-columns: 1fr;
  }
}