:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  color: #172b2a;
  background: #f4f7f4;
  font-synthesis: none;
}

* { box-sizing: border-box; }

body { margin: 0; line-height: 1.72; }

a { color: #14675c; text-underline-offset: 3px; }
a:hover { color: #0a453d; }
a:focus-visible { outline: 3px solid #d2aa38; outline-offset: 3px; }

.shell { width: min(100% - 40px, 820px); margin-inline: auto; }

.site-header { border-bottom: 1px solid #dce5dd; background: #fff; }
.site-header .shell { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { color: #184a42; font-weight: 800; font-size: 1.17rem; letter-spacing: -.03em; text-decoration: none; }
.site-nav { display: flex; gap: 20px; flex-wrap: wrap; font-size: .93rem; }
.site-nav a { color: #3d5753; text-decoration: none; }
.site-nav a[aria-current="page"] { color: #124e44; font-weight: 700; text-decoration: underline; }

main { padding-block: 70px 96px; }
.eyebrow { margin: 0 0 14px; color: #1f7769; font-size: .79rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.28; letter-spacing: -.035em; }
h1 { font-size: clamp(2.25rem, 6vw, 3.6rem); margin: 0 0 25px; }
h2 { font-size: 1.35rem; margin: 0 0 13px; }
h3 { font-size: 1.06rem; margin: 0 0 8px; }
p { margin: 0 0 18px; }
.lead { font-size: 1.12rem; color: #38534c; max-width: 680px; }
.muted { color: #5e716a; font-size: .92rem; }
.hero { padding-bottom: 44px; border-bottom: 1px solid #d5e1d8; }
.tag { display: inline-block; margin-bottom: 18px; padding: 5px 12px; border: 1px solid #bed9c9; border-radius: 99px; color: #185c4c; background: #eaf5ec; font-size: .81rem; font-weight: 700; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 32px; }
.card { padding: 27px; border: 1px solid #dce6dd; border-radius: 17px; background: #fff; box-shadow: 0 5px 18px #1b53390a; }
.card p:last-child { margin-bottom: 0; }
.section { padding-top: 42px; }
.page-heading { padding-bottom: 30px; border-bottom: 1px solid #d5e1d8; }
.content-section { padding-top: 30px; }
.content-section ul { padding-left: 1.4em; margin: 0 0 16px; }
.content-section li { margin: 0 0 10px; }
.callout { margin-top: 34px; padding: 22px 25px; border-left: 4px solid #40826e; border-radius: 0 12px 12px 0; background: #e9f1eb; }
.callout p:last-child { margin-bottom: 0; }
.site-footer { border-top: 1px solid #dce5dd; background: #fff; }
.site-footer .shell { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px; padding-block: 28px; color: #607069; font-size: .85rem; }
.site-footer nav { display: flex; gap: 16px; flex-wrap: wrap; }

@media (max-width: 640px) {
  .shell { width: min(100% - 32px, 820px); }
  .site-header .shell { align-items: flex-start; flex-direction: column; justify-content: center; padding-block: 18px; gap: 8px; }
  .site-nav { gap: 13px; }
  main { padding-block: 48px 68px; }
  .grid { grid-template-columns: 1fr; }
}