:root {
  color-scheme: light dark;
  --bg: #f5f6f4;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: #ffffff;
  --text: #17191c;
  --muted: #626973;
  --hairline: rgba(27, 31, 35, 0.12);
  --accent: #0a84ff;
  --teal: #1c9a92;
  --copper: #b26a36;
  --shadow: 0 18px 48px rgba(17, 24, 39, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101214;
    --surface: rgba(31, 34, 38, 0.78);
    --surface-strong: #1d2025;
    --text: #f4f5f6;
    --muted: #a7adb5;
    --hairline: rgba(255, 255, 255, 0.12);
    --accent: #5eb0ff;
    --teal: #4ac7bd;
    --copper: #d49461;
    --shadow: 0 20px 52px rgba(0, 0, 0, 0.32);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(10, 132, 255, 0.10), transparent 32rem),
    linear-gradient(180deg, var(--bg), color-mix(in srgb, var(--bg) 88%, var(--surface-strong)));
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  line-height: 1.55;
}

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

a:hover {
  text-decoration: underline;
}

.shell {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 56px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 48px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 700;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid var(--hairline);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.brand-mark::before {
  width: 16px;
  height: 16px;
  border: 3px solid var(--accent);
  border-top-color: var(--teal);
  border-radius: 999px;
  content: "";
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
  font-size: 0.95rem;
}

.hero {
  max-width: 780px;
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--teal);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.25rem, 7vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.lede {
  max-width: 720px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 30px;
}

.card {
  border: 1px solid var(--hairline);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 24px;
  backdrop-filter: blur(18px);
}

.card h2,
.content h2,
.content h3 {
  margin-top: 0;
  line-height: 1.15;
}

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

.content {
  margin-top: 28px;
}

.content section {
  border-top: 1px solid var(--hairline);
  padding: 28px 0 8px;
}

.content h2 {
  font-size: 1.7rem;
}

.content h3 {
  margin-bottom: 8px;
  font-size: 1.12rem;
}

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

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.pill {
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface-strong) 78%, transparent);
  color: var(--muted);
  font-size: 0.9rem;
  padding: 6px 10px;
}

.callout {
  border-left: 3px solid var(--copper);
  margin: 24px 0;
  padding: 14px 18px;
  background: color-mix(in srgb, var(--copper) 11%, transparent);
  color: var(--text);
}

.footer {
  border-top: 1px solid var(--hairline);
  margin-top: 40px;
  padding-top: 20px;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 720px) {
  .shell {
    width: min(100% - 24px, 980px);
    padding-top: 24px;
  }

  .nav {
    align-items: flex-start;
    flex-direction: column;
    margin-bottom: 34px;
  }

  .nav-links {
    justify-content: flex-start;
  }

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

  .card {
    padding: 20px;
  }
}