/* Volsetter site. Colors from the app icon (docs/icons/svg). */
:root {
  --bg: #f6f8fc;
  --surface: #ffffff;
  --text: #101c3a;
  --muted: #55607a;
  --line: #dde3ee;
  --accent: #1f7cff;
  --accent-text: #ffffff;
  --hero-from: #1d3f8f;
  --hero-to: #0a1633;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #070d1f;
    --surface: #101c3a;
    --text: #e8edf7;
    --muted: #a3aec6;
    --line: #22325a;
    --accent: #74beff;
    --accent-text: #070d1f;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }

.site-header { border-bottom: 1px solid var(--line); background: var(--surface); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 56px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; text-decoration: none; }
.brand img { width: 34px; height: 34px; margin: -3px; }
.nav-links { display: flex; gap: 18px; font-size: 15px; }
.nav-links a { color: var(--muted); text-decoration: none; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); }

.hero {
  background: linear-gradient(var(--hero-from), var(--hero-to));
  color: #ffffff;
  text-align: center;
  padding: 56px 0 64px;
}
.hero img { width: 144px; height: 144px; }
.hero h1 { font-size: 40px; line-height: 1.15; margin: 12px 0 8px; }
.hero p { font-size: 20px; color: #cbd3e1; margin: 0 auto; max-width: 520px; }

main { padding: 40px 0 56px; }
h2 { font-size: 26px; line-height: 1.25; margin: 40px 0 12px; }
h2:first-child { margin-top: 0; }
h3 { font-size: 19px; margin: 24px 0 6px; }
.muted { color: var(--muted); }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; padding: 0; list-style: none; }
.features li { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; }
.features strong { display: block; margin-bottom: 4px; }

.steps { padding-left: 22px; }
.steps li { margin-bottom: 8px; }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px; margin: 16px 0; }
.card > :first-child { margin-top: 0; }
.card > :last-child { margin-bottom: 0; }
.button {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 600;
  text-decoration: none;
  padding: 10px 20px;
  border-radius: 10px;
}
.button:hover { filter: brightness(1.08); }

.site-footer { border-top: 1px solid var(--line); padding: 24px 0 40px; font-size: 14px; color: var(--muted); }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 18px; justify-content: space-between; }
.site-footer a { color: var(--muted); }

@media (max-width: 520px) {
  .hero h1 { font-size: 32px; }
  .hero p { font-size: 18px; }
  .nav-links { gap: 12px; }
}