:root {
  --bg: #fff;
  --fg: #1a1d21;
  --muted: #5b6470;
  --accent: #1f5eff;
  --border: #e3e6ea;
  --card: #f7f8fa;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418;
    --fg: #e8eaed;
    --muted: #9aa3ad;
    --accent: #6c98ff;
    --border: #2a3038;
    --card: #181c22;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px;
}

header.wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  padding-bottom: 20px;
}

.logo { font-weight: 700; font-size: 1.2rem; color: var(--fg); text-decoration: none; }
nav a { margin-left: 20px; color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--accent); }

.hero { padding: 48px 0 32px; }
.hero h1 { font-size: clamp(1.8rem, 5vw, 2.8rem); line-height: 1.2; margin: 0 0 16px; }
.hero p { color: var(--muted); font-size: 1.15rem; margin: 0; max-width: 40em; }

h2 { font-size: 1.5rem; margin: 40px 0 16px; }

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

.card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: inherit;
  text-decoration: none;
}
.card:hover { border-color: var(--accent); }
.card h3 { margin: 0; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); flex: 1; }
.card span { color: var(--accent); font-weight: 600; }

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

.contacts { padding-bottom: 40px; }
.contacts ul { padding-left: 20px; }

footer.wrap { padding-top: 24px; padding-bottom: 24px; border-top: 1px solid var(--border); color: var(--muted); }