:root {
  color-scheme: dark;
  --ink: #f5fbff;
  --muted: #a9bdd0;
  --deep: #03111f;
  --surface: #0a2035;
  --surface-strong: #102b44;
  --line: rgba(166, 215, 255, 0.16);
  --blue: #61b7ff;
  --mint: #70f0cf;
  --max-width: 74rem;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 80% -10%, rgba(56, 159, 255, 0.2), transparent 34rem),
    radial-gradient(circle at 10% 18%, rgba(51, 220, 182, 0.1), transparent 28rem),
    var(--deep);
  font-size: 1rem;
  line-height: 1.65;
}

a {
  color: var(--blue);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--mint);
}

a:focus-visible,
.skip-link:focus-visible {
  outline: 3px solid var(--mint);
  outline-offset: 4px;
  border-radius: 0.25rem;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  color: var(--deep);
  background: var(--mint);
  font-weight: 750;
  transform: translateY(-180%);
  transition: transform 140ms ease;
}

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

.site-header {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: 1.4rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.6rem;
  height: 2.6rem;
  place-items: center;
  border: 1px solid rgba(112, 240, 207, 0.48);
  border-radius: 0.8rem;
  color: var(--mint);
  background: rgba(112, 240, 207, 0.08);
  font-size: 0.82rem;
  letter-spacing: -0.04em;
}

.repo-link {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
}

main,
footer {
  width: min(calc(100% - 2rem), var(--max-width));
  margin-inline: auto;
}

.hero {
  min-height: 31rem;
  padding: clamp(5rem, 12vw, 9rem) 0 5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--mint);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

h1 {
  max-width: 13ch;
  margin: 0;
  font-size: clamp(3.3rem, 9vw, 7.5rem);
  font-weight: 850;
  letter-spacing: -0.065em;
  line-height: 0.92;
}

.lede {
  max-width: 44rem;
  margin: 2rem 0 0;
  color: #cedce8;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.55;
}

.policy-meta {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.summary {
  padding: 5rem 0;
}

.summary > h2 {
  margin: 0 0 1.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.summary-grid article {
  min-height: 14rem;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  background: linear-gradient(145deg, rgba(16, 43, 68, 0.9), rgba(7, 27, 45, 0.72));
  box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.16);
}

.summary-grid .icon {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border-radius: 50%;
  color: var(--deep);
  background: var(--mint);
  font-weight: 900;
}

.summary-grid h3 {
  margin: 2rem 0 0.45rem;
  font-size: 1.15rem;
}

.summary-grid p {
  margin: 0;
  color: var(--muted);
}

.policy-body {
  max-width: 50rem;
  margin: 0 auto;
  padding: 2rem 0 7rem;
}

.policy-body section {
  padding: 3.5rem 0;
  border-top: 1px solid var(--line);
}

.policy-body h2 {
  margin: 0 0 1.6rem;
  font-size: clamp(1.65rem, 4vw, 2.35rem);
  letter-spacing: -0.035em;
  line-height: 1.1;
}

.policy-body h2 span {
  display: block;
  margin-bottom: 0.65rem;
  color: var(--mint);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
}

.policy-body h3 {
  margin: 2rem 0 0.3rem;
  color: #e9f5ff;
  font-size: 1.05rem;
}

.policy-body p,
.policy-body li {
  color: var(--muted);
}

.policy-body p {
  margin: 0.8rem 0;
}

.check-list {
  margin: 1rem 0 1.75rem;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  margin: 0.55rem 0;
  padding-left: 1.75rem;
}

.check-list li::before {
  position: absolute;
  left: 0;
  content: "—";
  color: var(--mint);
  font-weight: 800;
}

footer {
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 48rem) {
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .summary-grid article {
    min-height: auto;
  }

  .summary-grid h3 {
    margin-top: 1.2rem;
  }
}

@media (max-width: 30rem) {
  .repo-link {
    font-size: 0;
  }

  .repo-link::after {
    content: "GitHub";
    font-size: 0.9rem;
  }

  .hero {
    padding-top: 3.5rem;
  }
}

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

  .skip-link {
    transition: none;
  }
}