:root {
  --bg: #f5f7fb;
  --text: #111827;
  --muted: #64748b;
  --card: #ffffff;
  --line: #e5e7eb;
  --accent: #111827;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

a { color: inherit; }

.hero {
  background: #111827;
  color: #fff;
  padding: 56px 20px;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.eyebrow {
  color: #cbd5e1;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .8rem;
  margin: 0 0 8px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1.05;
}

.hero p.subtitle {
  color: #d1d5db;
  max-width: 760px;
  margin-top: 16px;
  font-size: 1.1rem;
}

.section {
  padding: 40px 20px;
}

.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, .05);
}

.card h2, .card h3 {
  margin-top: 0;
  line-height: 1.2;
}

.card .meta {
  color: var(--muted);
  font-size: .92rem;
}

.button {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 650;
  margin-top: 12px;
}

.notice {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  color: #7c2d12;
  border-radius: 14px;
  padding: 16px;
}

.article {
  background: #fff;
  border-radius: 20px;
  padding: min(5vw, 56px);
  border: 1px solid var(--line);
}

.article h1, .article h2, .article h3 {
  line-height: 1.2;
}

.footer {
  padding: 32px 20px;
  color: #64748b;
  text-align: center;
}