:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo",
    "Noto Sans KR", sans-serif;
  color: #17333a;
  background: #f3fbfc;
  line-height: 1.7;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

main {
  width: min(760px, 100%);
  margin: 0 auto;
  padding: 32px 20px 56px;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 56px;
}

.brand {
  color: #126b77;
  font-size: 1.05rem;
  font-weight: 800;
  text-decoration: none;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.9rem;
}

a {
  color: #0c7180;
}

.hero {
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 8px;
  color: #0c8798;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

h1,
h2 {
  color: #153f47;
  line-height: 1.3;
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 7vw, 3rem);
}

h2 {
  margin: 32px 0 10px;
  font-size: 1.25rem;
}

p {
  margin: 0 0 14px;
}

.muted {
  color: #60777c;
  font-size: 0.92rem;
}

.card {
  padding: 24px;
  border: 1px solid #d7ebee;
  border-radius: 18px;
  background: #ffffff;
  box-shadow: 0 10px 30px rgb(25 94 104 / 6%);
}

.cards {
  display: grid;
  gap: 16px;
}

.card-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.card-link h2 {
  margin-top: 0;
  color: #0c7180;
}

.notice {
  padding: 14px 16px;
  border-left: 4px solid #21a4b5;
  background: #edf9fa;
}

ul {
  padding-left: 1.25rem;
}

footer {
  margin-top: 40px;
  color: #60777c;
  font-size: 0.85rem;
}

@media (max-width: 560px) {
  header {
    align-items: flex-start;
    flex-direction: column;
    margin-bottom: 40px;
  }
}