:root {
  --ink: #1c1f26;
  --muted: #5a6270;
  --line: #e6e8ec;
  --accent: #3457d5;
  --bg: #ffffff;
  --bg-soft: #f7f8fa;
}

* { box-sizing: border-box; }

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

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header {
  border-bottom: 1px solid var(--line);
}

.nav {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--muted); font-size: 14px; font-weight: 500; }
.nav-links a.active,
.nav-links a:hover { color: var(--ink); text-decoration: none; }

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 64px 24px 96px;
}

.hero h1 {
  font-size: 40px;
  line-height: 1.15;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 18px;
  color: var(--muted);
  max-width: 560px;
  margin: 0 0 32px;
}

.btn {
  display: inline-block;
  padding: 11px 22px;
  background: var(--ink);
  color: #fff;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
}
.btn:hover { text-decoration: none; opacity: 0.85; }

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.card {
  padding: 24px;
  background: var(--bg-soft);
  border-radius: 10px;
  border: 1px solid var(--line);
}

.card h3 { margin: 0 0 8px; font-size: 16px; }
.card p { margin: 0; font-size: 14px; color: var(--muted); }

h1, h2 { color: var(--ink); }
h2 { font-size: 26px; margin-bottom: 12px; }

.page-header { margin-bottom: 40px; }
.page-header p { color: var(--muted); font-size: 16px; }

.section { margin-bottom: 48px; }

table.info { border-collapse: collapse; width: 100%; margin-top: 16px; }
table.info td { padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
table.info td:first-child { color: var(--muted); width: 140px; }

footer {
  border-top: 1px solid var(--line);
  padding: 32px 24px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
}