:root {
  --bg: #f7f9fc;
  --card: #ffffff;
  --text: #142033;
  --muted: #64748b;
  --line: #e2e8f0;
  --primary: #2563eb;
  --primary-dark: #1e40af;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #eef6ff 0%, var(--bg) 42%, #ffffff 100%);
  line-height: 1.6;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 28px 20px 56px;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 0 28px;
}

.brand {
  font-weight: 800;
  letter-spacing: -0.02em;
}

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

.hero {
  padding: 56px 0 34px;
  text-align: center;
}

.badge {
  display: inline-flex;
  padding: 6px 12px;
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: 999px;
  color: var(--primary-dark);
  background: rgba(37, 99, 235, 0.08);
  font-size: 14px;
  font-weight: 650;
}

h1 {
  margin: 18px 0 14px;
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.05em;
}

h2 {
  margin: 34px 0 12px;
  font-size: 28px;
  letter-spacing: -0.03em;
}

h3 {
  margin: 20px 0 8px;
  font-size: 20px;
  letter-spacing: -0.02em;
}

.lead {
  max-width: 720px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 19px;
}

.actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 12px;
  background: var(--primary);
  color: white;
  font-weight: 700;
}

.button.secondary {
  background: white;
  color: var(--primary);
  border: 1px solid var(--line);
}

.button:hover {
  text-decoration: none;
  filter: brightness(0.98);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 28px;
}

.card {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 22px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
}

.card p {
  color: var(--muted);
  margin: 8px 0 0;
}

.section {
  margin-top: 28px;
}

.list {
  padding-left: 20px;
}

.notice {
  margin-top: 24px;
  padding: 16px;
  border-radius: 16px;
  background: #f8fafc;
  border: 1px solid var(--line);
  color: var(--muted);
}

.footer {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.lang-block {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

@media (max-width: 720px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .hero {
    text-align: left;
    padding-top: 36px;
  }

  .lead {
    margin: 0;
  }

  .actions {
    justify-content: flex-start;
  }

  .nav {
    align-items: flex-start;
    flex-direction: column;
  }
}