:root {
  --background: #fafafa;
  --surface: #ffffff;
  --primary: #000000;
  --secondary: #66666b;
  --border: #e5e5eb;
  --green: #30d158;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #0a0a0a;
    --surface: #171718;
    --primary: #ffffff;
    --secondary: #a3a3a8;
    --border: rgba(255, 255, 255, 0.13);
  }
  .logo { filter: invert(1); }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--background);
  color: var(--primary);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 680px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

header.site {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 40px;
}

header.site a {
  display: flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  text-decoration: none;
  font-weight: 600;
}

header.site .logo { width: 32px; height: 32px; }

h1 { font-size: 34px; line-height: 1.15; margin: 0 0 12px; letter-spacing: -0.01em; }
h2 { font-size: 21px; margin: 40px 0 8px; }
h3 { font-size: 17px; margin: 24px 0 4px; }
p, ul { margin: 0 0 14px; }
ul { padding-left: 22px; }
li { margin-bottom: 6px; }

a { color: inherit; text-decoration-color: var(--green); text-underline-offset: 3px; }

.lead { font-size: 20px; color: var(--secondary); margin-bottom: 32px; }
.muted { color: var(--secondary); }

.hero { text-align: center; padding: 32px 0 8px; }
.hero .logo { width: 96px; height: 96px; margin-bottom: 20px; }
.hero h1 { font-size: 44px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px 22px;
  margin-bottom: 14px;
}

.card h3 { margin-top: 0; }
.card p:last-child { margin-bottom: 0; }

.badge {
  display: inline-block;
  margin-top: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  background: var(--primary);
  color: var(--background);
  font-weight: 600;
  text-decoration: none;
}

.lang { font-size: 15px; margin-bottom: 24px; }

hr { border: 0; border-top: 1px solid var(--border); margin: 56px 0 40px; }

footer {
  border-top: 1px solid var(--border);
  margin-top: 56px;
  padding-top: 20px;
  font-size: 15px;
  color: var(--secondary);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

footer a { color: inherit; }