:root {
  --bg: #f7f4ef;
  --paper: #fffdf9;
  --ink: #1c1917;
  --muted: #57534e;
  --line: #e7e0d5;
  --accent: #0f766e;
  --accent-dark: #115e59;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Pretendard", "Noto Sans KR", "Apple SD Gothic Neo", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.08), transparent 40%),
    linear-gradient(180deg, #faf7f2 0%, var(--bg) 100%);
  line-height: 1.75;
}
a { color: var(--accent-dark); }
a:hover { color: var(--accent); }
.wrap { width: min(100% - 2rem, 56rem); margin: 0 auto; }
.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 249, 0.94);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header .inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  padding: 0.9rem 0;
}
.brand {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--ink);
}
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.1rem;
  font-size: 0.95rem;
}
.nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
}
.nav a:hover,
.nav a[aria-current="page"] { color: var(--accent-dark); }
main { padding: 2.25rem 0 3.5rem; }
.hero {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  padding: 1.75rem 1.5rem;
  margin-bottom: 2rem;
}
.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  line-height: 1.25;
  letter-spacing: -0.03em;
}
.hero p { margin: 0; color: var(--muted); font-size: 1.05rem; }
.section { margin-bottom: 2.25rem; }
.section h2 {
  margin: 0 0 0.85rem;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}
.prose {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 1.1rem;
  padding: 1.4rem 1.35rem;
}
.prose h1 {
  margin-top: 0;
  font-size: clamp(1.55rem, 3.5vw, 2rem);
  letter-spacing: -0.03em;
}
.prose h2 { margin-top: 1.75rem; font-size: 1.2rem; }
.prose ul { padding-left: 1.2rem; }
.card-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}
.card {
  display: block;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1.2rem 1.15rem;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.card:hover {
  border-color: #99f6e4;
  transform: translateY(-2px);
}
.card h3 { margin: 0 0 0.45rem; font-size: 1.08rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }
.meta { color: var(--muted); font-size: 0.9rem; margin-bottom: 1rem; }
.cta {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.7rem 1.05rem;
  border-radius: 999px;
  background: var(--accent);
  color: #fff !important;
  text-decoration: none;
  font-weight: 700;
}
.cta:hover { background: var(--accent-dark); }
.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem 0 2.25rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.site-footer .inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  justify-content: space-between;
}
.site-footer a { color: var(--muted); }