html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #fff;
  color: #111;
  font-family: "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
}

header {
  position: sticky;
  top: 0;
  z-index: 2;
  background: #fff;
  border-bottom: 1px solid #e7e7e7;
  padding: 16px 20px 14px;
}

.kicker {
  margin: 0;
  font-size: 13px;
  color: #666;
}

h1 {
  margin: 2px 0 12px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.03em;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

nav a {
  color: #111;
  text-decoration: none;
  font-size: 14px;
  line-height: 1;
  padding: 8px 10px;
  border: 1px solid #ddd;
  border-radius: 8px;
  background: #fff;
}

nav a.on {
  background: #ececff;
  border-color: #b3a6e6;
}

main {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 72px;
}

section {
  scroll-margin-top: 132px;
}

section + section {
  margin-top: 56px;
}

img {
  display: block;
  width: 100%;
  height: auto;
}