:root {
  --text: #171717;
  --muted: #5f6368;
  --line: #e3e3e3;
  --bg: #fbfaf8;
  --accent: #1f4e5f;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
.wrap { max-width: 980px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 720px; }

.site-header { border-bottom: 1px solid var(--line); background: #fff; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 64px; }
.brand { font-size: 18px; font-weight: 600; letter-spacing: .02em; color: var(--text); text-decoration: none; }
.nav { display: flex; gap: 22px; flex-wrap: wrap; }
.nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.nav a:hover { color: var(--text); }

h1 { font-size: 32px; line-height: 1.25; font-weight: 600; margin: 48px 0 16px; letter-spacing: -.01em; }
h2 { font-size: 20px; font-weight: 600; margin: 40px 0 12px; }
h3 { font-size: 16px; font-weight: 600; margin: 0 0 8px; }
p { margin: 0 0 14px; }
a { color: var(--accent); }

.hero { padding-top: 8px; }
.hero h1 { margin-top: 56px; max-width: 720px; }
.lead { font-size: 17px; color: var(--muted); max-width: 640px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 4px; padding: 20px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

.spec { width: 100%; border-collapse: collapse; margin: 18px 0 8px; background: #fff; border: 1px solid var(--line); }
.spec th, .spec td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--line); font-size: 15px; vertical-align: top; }
.spec tr:last-child th, .spec tr:last-child td { border-bottom: 0; }
.spec th { width: 240px; font-weight: 500; color: var(--muted); }

ul.plain { padding-left: 18px; margin: 0 0 14px; color: var(--muted); }
ul.plain li { margin-bottom: 6px; }

main { padding-bottom: 56px; }

.site-footer { border-top: 1px solid var(--line); background: #fff; padding: 28px 0; }
.footer-inner { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; align-items: flex-start; }
.footer-inner strong { font-weight: 600; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); text-decoration: none; font-size: 14px; }
.footer-links a:hover { color: var(--text); }
.site-footer p { margin: 4px 0 0; font-size: 14px; }

@media (max-width: 640px) {
  h1 { font-size: 26px; margin-top: 36px; }
  .header-inner { height: auto; padding: 14px 0; flex-direction: column; align-items: flex-start; gap: 10px; }
  .spec th { width: 140px; }
}