:root {
  color-scheme: light;
  --ink: #1a1a1a;
  --muted: #555;
  --bg: #f7f4ef;
  --card: #fff;
  --line: #e0d8cc;
  --go: #1a5f2a;
  --tk: #8c3b2a;
  --mile: #0b4f8a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Pretendard", "Apple SD Gothic Neo", system-ui, sans-serif;
  background: linear-gradient(180deg, #f3efe6, #f7f4ef 36%, #efe8dc);
  color: var(--ink);
  line-height: 1.7;
}
a { color: var(--go); }
header, main, footer { max-width: 72rem; margin: 0 auto; padding: 0 1.25rem; }
header { padding-top: 2.4rem; padding-bottom: 0.5rem; }
header h1 { margin: 0 0 0.35rem; font-size: 1.9rem; letter-spacing: -0.03em; }
header .lead { margin: 0; color: var(--muted); max-width: 42rem; }
nav { display: flex; flex-wrap: wrap; gap: 0.75rem 1.15rem; margin: 1.15rem 0 0; font-size: 0.95rem; }
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.25rem 0 0.5rem;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.2rem 1.25rem 1.3rem;
  display: flex;
  flex-direction: column;
  min-height: 100%;
}
.card h2 { margin: 0.15rem 0 0.55rem; font-size: 1.25rem; letter-spacing: -0.02em; }
.kicker { margin: 0; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.04em; }
.card p, .card li, .panel p, .panel li { color: #333; }
.card ul { padding-left: 1.15rem; margin: 0.4rem 0 0.8rem; }
.card .grow { flex: 1; }
.actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: auto; }
.cta, .ghost {
  display: inline-block;
  padding: 0.55rem 0.9rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 650;
  font-size: 0.95rem;
}
.cta { background: var(--go); color: #fff !important; }
.ghost { background: transparent; border: 1px solid var(--line); color: var(--ink) !important; }
.go { border-top: 4px solid var(--go); }
.go .kicker, .go h2 a { color: var(--go); }
.go .cta { background: var(--go); }
.tk { border-top: 4px solid var(--tk); }
.tk .kicker, .tk h2 a { color: var(--tk); }
.tk .cta { background: var(--tk); }
.mile { border-top: 4px solid var(--mile); }
.mile .kicker, .mile h2 a { color: var(--mile); }
.mile .cta { background: var(--mile); }
.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.2rem 1.35rem;
  margin: 1rem 0;
}
.panel h2 { margin: 0 0 0.55rem; font-size: 1.15rem; }
footer { padding: 1.5rem 1.25rem 3rem; color: var(--muted); font-size: 0.9rem; }
.article { max-width: 44rem; }
.article h1 { font-size: 1.7rem; letter-spacing: -0.03em; margin-bottom: 0.4rem; }
.back { margin-top: 2rem; }
@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; }
}