:root {
  --bg: #f7faf7;
  --surface: #ffffff;
  --surface-soft: #eef8f4;
  --primary: #0b8f78;
  --primary-dark: #066b5a;
  --text: #17211f;
  --muted: #5d6b67;
  --border: #d9e5e1;
  --danger: #b42318;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans KR", Arial, sans-serif;
  background: linear-gradient(180deg, #eef8f4 0%, var(--bg) 360px);
  color: var(--text);
  line-height: 1.7;
}

a {
  color: var(--primary-dark);
  font-weight: 700;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header {
  max-width: 980px;
  margin: 0 auto;
  padding: 28px 20px 12px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-title {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.brand-subtitle {
  color: var(--muted);
  font-size: 14px;
}

.nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 20px;
}

.hero {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 44px 36px;
  box-shadow: 0 18px 50px rgba(15, 80, 67, 0.09);
}

.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.15;
  letter-spacing: -0.06em;
}

.hero p {
  margin: 0;
  max-width: 720px;
  font-size: 18px;
  color: var(--muted);
}

.badges {
  margin-top: 28px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.badge {
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--primary-dark);
  font-size: 14px;
  font-weight: 700;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 22px;
}

.card h2,
.card h3 {
  margin-top: 0;
  letter-spacing: -0.03em;
}

.card p,
.card li {
  color: var(--muted);
}

.section {
  margin-top: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
}

.section h1,
.section h2 {
  margin-top: 0;
  letter-spacing: -0.04em;
}

.notice {
  background: #fff8e5;
  border: 1px solid #f3d58a;
  border-radius: 16px;
  padding: 16px;
}

.danger {
  background: #fff4f2;
  border: 1px solid #ffd0ca;
  color: var(--danger);
  border-radius: 16px;
  padding: 16px;
}

.footer {
  max-width: 980px;
  margin: 0 auto;
  padding: 32px 20px 48px;
  color: var(--muted);
  font-size: 14px;
}

.footer-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

@media (max-width: 720px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 32px 24px;
  }
}