:root {
  --bg: #0b0c10;
  --panel: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.10);
  --text: #f3f4f6;
  --muted: #9aa0aa;
  --accent: #7dd3fc;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 50% -10%, #1b2330 0%, transparent 60%),
    var(--bg);
  min-height: 100vh;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 56px 22px 80px;
}

header.site { text-align: center; margin-bottom: 40px; }

.logo {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
}

h1 {
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  line-height: 1.15;
  margin: 0.2em 0 0.4em;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.25rem;
  margin: 2em 0 0.5em;
  letter-spacing: -0.01em;
}

.tagline { color: var(--muted); font-size: 1.15rem; margin: 0 0 1.6em; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px 24px;
  margin: 18px 0;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

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

ul { padding-left: 1.2em; }
li { margin: 0.35em 0; }

.muted { color: var(--muted); }
.small { font-size: 0.92rem; }

.nav { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; margin-top: 10px; }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--text); }

.btn {
  display: inline-block;
  margin-top: 8px;
  padding: 12px 20px;
  border-radius: 12px;
  background: var(--text);
  color: #0b0c10;
  font-weight: 600;
  text-decoration: none;
}

footer {
  margin-top: 56px;
  text-align: center;
  color: var(--muted);
  font-size: 0.88rem;
}

code {
  background: rgba(255,255,255,0.08);
  padding: 0.1em 0.4em;
  border-radius: 6px;
  font-size: 0.9em;
}