:root {
  --ink: #123B4A;
  --teal: #0F6B72;
  --mint: #8FE3CE;
  --mist: #F2FBFF;
  --amber: #FFB34E;
  --white: #ffffff;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--mist);
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgb(143 227 206 / 34%), transparent 34rem),
    var(--mist);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
}

main {
  width: min(760px, calc(100% - 2rem));
  min-height: 100vh;
  margin: 0 auto;
  padding: clamp(2.5rem, 7vw, 5rem) 0;
}

h1,
h2 {
  color: var(--ink);
  line-height: 1.15;
  text-wrap: balance;
}

h1 {
  max-width: 16ch;
  margin: 0 0 1rem;
  font-size: clamp(2.6rem, 8vw, 4.6rem);
  letter-spacing: -0.045em;
}

h2 {
  margin: 2.25rem 0 0.5rem;
  font-size: clamp(1.35rem, 4vw, 1.7rem);
  letter-spacing: -0.02em;
}

p,
ul {
  max-width: 68ch;
}

a {
  color: var(--teal);
  font-weight: 700;
  text-underline-offset: 0.18em;
  text-decoration-thickness: 0.1em;
}

a:hover {
  text-decoration-thickness: 0.16em;
}

a:focus-visible {
  border-radius: 0.2rem;
  outline: 3px solid var(--ink);
  outline-offset: 4px;
  box-shadow: 0 0 0 6px var(--amber);
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  border-radius: 0.5rem;
  color: var(--white);
  background: var(--ink);
  transform: translateY(-180%);
}

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

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--teal);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.lede {
  margin: 0 0 2rem;
  font-size: clamp(1.15rem, 3vw, 1.38rem);
  line-height: 1.5;
}

.summary,
.scope-note {
  border: 1px solid rgb(15 107 114 / 28%);
  border-left: 0.35rem solid var(--teal);
  border-radius: 0.85rem;
  background: rgb(255 255 255 / 78%);
  box-shadow: 0 1rem 3rem rgb(18 59 74 / 8%);
}

.summary {
  margin: 2rem 0;
  padding: 0.15rem 1.4rem 1.25rem;
}

.scope-note {
  padding: 1rem 1.15rem;
}

.breadcrumb {
  margin: 0 0 1.5rem;
  color: var(--teal);
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.75rem;
}

.button {
  display: inline-block;
  padding: 0.78rem 1.05rem;
  border: 2px solid var(--ink);
  border-radius: 0.65rem;
  color: var(--white);
  background: var(--ink);
  text-decoration: none;
}

.button:hover {
  color: var(--white);
  background: var(--teal);
  border-color: var(--teal);
  text-decoration: none;
}

.button-secondary {
  color: var(--ink);
  background: var(--mint);
}

.button-secondary:hover {
  color: var(--ink);
  background: var(--amber);
  border-color: var(--ink);
}

.support-note {
  margin-top: 1.5rem;
  font-size: 0.95rem;
}

ul {
  padding-left: 1.4rem;
}

li + li {
  margin-top: 0.35rem;
}

@media (max-width: 520px) {
  main {
    width: min(100% - 1.4rem, 760px);
    padding-top: 2rem;
  }

  nav,
  nav .button {
    width: 100%;
  }

  .button {
    text-align: center;
  }
}

@media (prefers-reduced-motion: no-preference) {
  a {
    transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease;
  }
}