:root {
  color-scheme: dark;
  --background: #080b12;
  --surface: #111827;
  --surface-raised: #172033;
  --border: #2a3850;
  --text: #f1f5f9;
  --muted: #b6c2d1;
  --accent: #67e8c2;
  --accent-strong: #2dd4a8;
  --link: #7dd3fc;
  --focus: #facc15;
  --max-width: 72rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 20rem;
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
}

a {
  color: var(--link);
  text-underline-offset: 0.2em;
}

a:hover {
  color: #bae6fd;
}

a:focus-visible,
button:focus-visible {
  outline: 0.2rem solid var(--focus);
  outline-offset: 0.2rem;
  border-radius: 0.2rem;
}

.skip-link {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 10;
  padding: 0.65rem 0.9rem;
  border-radius: 0.5rem;
  background: var(--text);
  color: var(--background);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(8, 11, 18, 0.96);
}

.header-inner {
  padding-block: 0.8rem;
}

.brand {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  color: var(--text);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.site-nav ul,
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding-inline: 0.75rem;
  border-radius: 0.5rem;
  color: var(--muted);
  font-weight: 650;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--surface-raised);
  color: var(--text);
}

main {
  min-height: 60vh;
  padding-block: 3rem 4rem;
}

.content {
  max-width: 48rem;
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.2;
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.25rem, 9vw, 4.5rem);
  letter-spacing: -0.04em;
}

.content h1 {
  font-size: clamp(2rem, 7vw, 3.5rem);
}

h2 {
  margin: 2.5rem 0 0.75rem;
  color: var(--accent);
  font-size: clamp(1.35rem, 4vw, 1.75rem);
}

h3 {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
}

p,
ul,
ol {
  margin-block: 0.75rem;
}

.lead {
  max-width: 43rem;
  color: var(--muted);
  font-size: clamp(1.1rem, 3vw, 1.3rem);
}

.hero {
  padding-block: 1rem 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.1rem;
  border: 2px solid var(--accent-strong);
  border-radius: 0.65rem;
  background: var(--accent-strong);
  color: #04110d;
  font-weight: 800;
  text-decoration: none;
}

.button:hover {
  background: #5eead4;
  color: #04110d;
}

.card-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2.5rem;
}

.card {
  padding: 1.4rem;
  border: 1px solid var(--border);
  border-radius: 0.85rem;
  background: var(--surface);
}

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

.card-link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  font-weight: 750;
}

.content section {
  padding-top: 0.25rem;
}

.content li + li {
  margin-top: 0.45rem;
}

.note {
  padding: 1rem;
  border-left: 0.25rem solid var(--accent-strong);
  border-radius: 0.4rem;
  background: var(--surface);
  color: var(--muted);
}

.site-footer {
  padding-block: 2rem;
  border-top: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
}

.footer-title {
  margin: 0;
  color: var(--text);
  font-weight: 800;
}

.footer-links a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
}

.copyright {
  margin-bottom: 0;
  font-size: 0.95rem;
}

@media (min-width: 44rem) {
  .header-inner,
  .footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
  }

  .site-nav ul {
    justify-content: flex-end;
  }

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

  .footer-inner {
    align-items: flex-start;
  }

  .footer-meta {
    text-align: right;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}