:root {
  color-scheme: light dark;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Apple SD Gothic Neo", "Noto Sans KR",
    "Malgun Gothic", sans-serif;
  line-height: 1.5;
  display: grid;
  min-height: 100dvh;
  grid-template-rows: auto 1fr auto;
  background: radial-gradient(
      60% 80% at 50% 0%,
      rgba(0, 0, 0, 0.06),
      transparent 60%
    )
    no-repeat;
  padding: 24px;
}
header,
footer {
  max-width: 960px;
  margin: 0 auto;
  width: 100%;
}
header {
  padding: 12px 0 8px;
}
h1 {
  font-size: 28px;
  margin: 0 0 4px;
}
p.lead {
  margin: 0;
  opacity: 0.8;
}

.grid {
  max-width: 960px;
  margin: 24px auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  width: 100%;
}

a.card {
  display: block;
  text-decoration: none;
  border: 1px solid rgba(127, 127, 127, 0.25);
  border-radius: 12px;
  padding: 16px;
  backdrop-filter: blur(4px);
  background: color-mix(in oklab, Canvas 92%, transparent);
  transition: transform 120ms ease, border-color 120ms ease,
    background 120ms ease;
  color: inherit;
}
a.card:hover {
  transform: translateY(-2px);
  border-color: rgba(127, 127, 127, 0.45);
}
.card h2 {
  margin: 0 0 8px;
  font-size: 18px;
}
.card p {
  margin: 0;
  opacity: 0.8;
  font-size: 14px;
}

footer {
  opacity: 0.7;
  font-size: 12px;
  padding: 8px 0;
}