:root {
  color-scheme: light;
  --ink: #1c2630;
  --muted: #65707a;
  --line: #e5e8ea;
  --blue: #218ab4;
  --green: #1b9a77;
}

* {
  box-sizing: border-box;
}

html {
  background: #ffffff;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 92% 4%, rgba(60, 168, 236, 0.1), transparent 23rem),
    radial-gradient(circle at 5% 95%, rgba(136, 244, 78, 0.08), transparent 25rem),
    #ffffff;
  color: var(--ink);
  font-family: "Lato", sans-serif;
  font-size: 17px;
  line-height: 1.72;
}

.page-accent {
  position: fixed;
  inset: 0 0 auto;
  z-index: 2;
  height: 5px;
  overflow: hidden;
  background: linear-gradient(90deg, #c73524, #e28240, #d0b64f, #bb55c6, #d0247d);
}

.page-accent::before,
.page-accent::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 10s ease;
}

.page-accent::before {
  background: linear-gradient(90deg, #88f44e, #3ca8ec);
}

.page-accent::after {
  background: linear-gradient(90deg, #b636f2, #ff6666, #fb3737);
}

.page-accent[data-palette="blue"]::before {
  opacity: 1;
}

.page-accent[data-palette="green"]::after {
  opacity: 1;
}

main {
  width: min(100% - 40px, 720px);
  margin: 0 auto;
  padding: 64px 0 48px;
}

nav {
  display: flex;
  gap: 9px;
  align-items: center;
  margin-bottom: 64px;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

a {
  color: var(--blue);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

a:focus-visible {
  outline: 3px solid rgba(33, 138, 180, 0.25);
  outline-offset: 4px;
  border-radius: 2px;
}

nav a {
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

header {
  margin-bottom: 56px;
}

h1 {
  margin: 0;
  font-family: "Caveat", cursive;
  font-size: clamp(58px, 10vw, 82px);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 0.95;
}

.updated {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.intro {
  margin: 0 0 56px;
  color: #32404c;
  font-size: 21px;
  line-height: 1.58;
}

section {
  padding: 30px 0;
  border-top: 1px solid var(--line);
}

h2 {
  margin: 0 0 12px;
  font-size: 15px;
  letter-spacing: 0.1em;
  line-height: 1.4;
  text-transform: uppercase;
}

p {
  margin: 0 0 16px;
}

p:last-child {
  margin-bottom: 0;
}

ul {
  margin: 12px 0 18px;
  padding-left: 1.2em;
}

li {
  margin: 5px 0;
  padding-left: 0.3em;
}

li::marker {
  color: var(--green);
}

footer {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: 54px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

footer a {
  color: var(--ink);
  font-size: 14px;
  text-decoration: none;
}

footer span {
  color: var(--muted);
  font-family: "Caveat", cursive;
  font-size: 30px;
}

@media (max-width: 600px) {
  body {
    font-size: 16px;
  }

  main {
    width: min(100% - 32px, 720px);
    padding-top: 44px;
  }

  nav {
    margin-bottom: 48px;
  }

  header {
    margin-bottom: 42px;
  }

  .intro {
    margin-bottom: 42px;
    font-size: 19px;
  }

  section {
    padding: 25px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-accent::before,
  .page-accent::after {
    display: none;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}