:root {
  color-scheme: light;
  --ink: #15372f;
  --muted: #526862;
  --surface: #ffffff;
  --soft: #eaf5f1;
  --line: #c7ddd5;
  --brand: #08775e;
  --brand-dark: #045d49;
  --accent: #f2b84b;
  font-family: Inter, "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: #f7faf9;
  font-size: 17px;
  line-height: 1.7;
}

a { color: var(--brand-dark); }
a:hover { text-decoration-thickness: 2px; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
  z-index: 10;
  padding: .7rem 1rem;
  color: #fff;
  background: var(--brand-dark);
  border-radius: .5rem;
}

header, main, footer {
  width: min(940px, calc(100% - 2rem));
  margin-inline: auto;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  color: var(--ink);
  font-size: 1.2rem;
  font-weight: 800;
  text-decoration: none;
}
.brand img { width: 42px; height: 42px; }

nav { display: flex; flex-wrap: wrap; gap: .4rem 1rem; }
nav a { font-weight: 650; }

main {
  min-height: calc(100vh - 190px);
  padding: 2.5rem 0 4rem;
}

.hero, .card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  box-shadow: 0 16px 44px rgba(12, 64, 52, .08);
}

.hero {
  padding: clamp(1.5rem, 5vw, 4rem);
  background: linear-gradient(135deg, #fff 0%, var(--soft) 100%);
}

h1, h2, h3 { line-height: 1.25; }
h1 { margin: 0 0 1rem; font-size: clamp(2.2rem, 7vw, 4.4rem); letter-spacing: -.04em; }
h2 { margin-top: 2.5rem; font-size: clamp(1.45rem, 3vw, 2rem); }
h3 { margin-top: 1.8rem; }
.eyebrow { color: var(--brand); font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
.lead { max-width: 720px; color: var(--muted); font-size: 1.18rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}
.card { padding: 1.25rem; box-shadow: none; }
.card h3 { margin-top: 0; }

.button {
  display: inline-block;
  margin-top: 1rem;
  padding: .78rem 1.1rem;
  color: #fff;
  background: var(--brand);
  border-radius: .7rem;
  font-weight: 800;
  text-decoration: none;
}
.button:hover { background: var(--brand-dark); }

.notice {
  margin: 1.5rem 0;
  padding: 1rem 1.2rem;
  border-left: .35rem solid var(--accent);
  background: #fff8e7;
}

table { width: 100%; border-collapse: collapse; }
th, td { padding: .75rem; border: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: var(--soft); }

footer {
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .94rem;
}

@media (max-width: 680px) {
  header { align-items: flex-start; flex-direction: column; }
  main { padding-top: 1rem; }
  .hero { border-radius: 1rem; }
}