:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --text: #1a2433;
  --muted: #586579;
  --line: #dde4ee;
  --accent: #0b6bcb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(180deg, #f9fbff 0%, var(--bg) 100%);
  color: var(--text);
  line-height: 1.6;
}

.wrap {
  width: min(960px, 92vw);
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(4px);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 16px;
}

.brand {
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
}

nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
}

nav a[aria-current="page"],
nav a:hover {
  color: var(--accent);
}

.hero {
  padding: 44px 0 20px;
}

.hero h1 {
  margin: 0 0 8px;
  font-size: clamp(2rem, 5vw, 2.75rem);
}

.hero p {
  margin: 0;
  color: var(--muted);
}

.cards {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  padding: 20px 0 42px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
}

.card h2 {
  margin-top: 0;
  font-size: 1.1rem;
}

.card p {
  color: var(--muted);
  margin-bottom: 10px;
}

.card a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.page {
  padding: 34px 0 48px;
}

h1, h2 {
  line-height: 1.25;
}

h2 {
  margin-top: 26px;
}

a {
  color: var(--accent);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 18px 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}