:root {
  color-scheme: light;
  font-family: Inter, "Noto Sans Thai", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --navy: #0b2341;
  --public-magenta: #a51c72;
  --public-orange: #d96f1d;
  --ink: #17263a;
  --muted: #5f6f86;
  --line: #d9e3ee;
  --surface: #ffffff;
  --canvas: #f2f6fa;
  --notice-bg: #eef6ff;
  --notice-line: #b9d4f2;
}

* {
  box-sizing: border-box;
}

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

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 8% 0%, rgba(165, 28, 114, 0.1), transparent 32rem),
    radial-gradient(circle at 100% 100%, rgba(217, 111, 29, 0.08), transparent 34rem),
    var(--canvas);
  color: var(--ink);
  line-height: 1.75;
}

main {
  position: relative;
  width: min(100% - 2rem, 52rem);
  margin: 2rem auto;
  overflow: hidden;
  padding: clamp(1.5rem, 5vw, 3rem);
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--surface);
  box-shadow: 0 1.5rem 4rem rgba(11, 35, 65, 0.09);
}

main::before {
  position: absolute;
  inset: 0 0 auto;
  height: 0.4rem;
  background: linear-gradient(90deg, var(--navy), var(--public-magenta), var(--public-orange));
  content: "";
}

header {
  padding: 0.5rem 0 1.25rem;
  border-bottom: 1px solid var(--line);
}

h1,
h2 {
  color: var(--navy);
  line-height: 1.25;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(2rem, 7vw, 3rem);
  letter-spacing: -0.03em;
}

h2 {
  margin-top: 2rem;
  font-size: 1.25rem;
}

p,
li {
  color: #42536b;
}

ul {
  padding-left: 1.25rem;
}

code {
  overflow-wrap: anywhere;
}

.details {
  display: grid;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.details div {
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  background: #f8fbfe;
}

.details dt {
  color: var(--navy);
  font-weight: 750;
}

.details dd {
  margin: 0.2rem 0 0;
  color: #42536b;
}

.eyebrow {
  margin: 0 0 0.35rem;
  color: var(--public-magenta);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.notice {
  margin: 1.5rem 0;
  padding: 1rem;
  border: 1px solid var(--notice-line);
  border-left: 0.32rem solid var(--public-magenta);
  border-radius: 0.65rem;
  background: var(--notice-bg);
  color: #244d7c;
}

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

a:hover,
a:focus-visible {
  color: var(--public-orange);
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

footer {
  margin-top: 2rem;
  color: var(--muted);
  font-size: 0.8rem;
}

@media (max-width: 560px) {
  main {
    width: 100%;
    margin: 0;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }
}