:root {
  color-scheme: dark;
  --bg: #1a1b1e;
  --surface: #25262b;
  --text: #e8e8e8;
  --muted: #9aa0a6;
  --accent: #6cb6ff;
  --border: #3d3f46;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.55;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
}

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

.site-header {
  max-width: 52rem;
  margin: 0 auto;
  padding: 3rem 1.5rem 2rem;
}

.brand-row {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1rem;
}

.brand-logo {
  flex-shrink: 0;
  border-radius: 16px;
  display: block;
}

.brand-logo-link {
  flex-shrink: 0;
  line-height: 0;
  text-decoration: none;
}

.brand-logo-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 16px;
}

.eyebrow {
  color: var(--muted);
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 0.5rem;
}

h1 {
  font-size: clamp(2rem, 5vw, 2.75rem);
  margin: 0 0 1rem;
  font-weight: 650;
}

.lede {
  font-size: 1.125rem;
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-block;
  padding: 0.6rem 1.1rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  text-decoration: none;
  color: var(--text);
  background: var(--surface);
}

.btn.primary {
  background: var(--accent);
  color: #0d1117;
  border-color: transparent;
  font-weight: 600;
}

main {
  max-width: 52rem;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

section {
  margin-bottom: 2.5rem;
}

h2 {
  font-size: 1.35rem;
  margin: 0 0 1rem;
}

.feature-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .feature-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.feature-grid li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.1rem;
}

.feature-grid h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.feature-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

footer {
  max-width: 52rem;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

.fine {
  font-size: 0.8rem;
  margin-top: 1rem;
}

.plain-list {
  margin: 0.5rem 0 1rem;
  padding-left: 1.25rem;
  color: var(--muted);
}

.plain-list li {
  margin-bottom: 0.35rem;
}

.site-header .eyebrow a {
  color: var(--muted);
  text-decoration: none;
}

.site-header .eyebrow a:hover {
  color: var(--accent);
}