:root {
  --brand: #2E90FA;
  --brand-dark: #1570EF;
  --ink: #0B1B33;
  --muted: #5B6B85;
  --bg: #F4F9FF;
  --card: #FFFFFF;
  --border: #E4EDF9;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #EAF2FF;
    --muted: #93A4BF;
    --bg: #0A1220;
    --card: #13203A;
    --border: #22345A;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
}

header.site {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px;
  background: linear-gradient(135deg, #57C7FF, #2E90FA);
  color: #fff;
}
header.site .logo {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  font-size: 22px;
}
header.site .brand { font-size: 20px; margin: 0; font-weight: 800; }

.wrap { max-width: 760px; margin: 0 auto; padding: 30px 20px 80px; }

h1.title { font-size: 30px; font-weight: 800; margin: 6px 0 4px; }
.updated { color: var(--muted); font-size: 14px; margin-bottom: 26px; }

h2 { font-size: 20px; font-weight: 800; margin: 34px 0 10px; }
p, li { font-size: 16px; }
a { color: var(--brand); }

.tldr {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--brand);
  border-radius: 14px;
  padding: 16px 18px;
  margin: 20px 0;
}
.note {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
  margin: 18px 0;
  color: var(--muted);
  font-size: 14px;
}

nav.links {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 15px;
}
footer { color: var(--muted); font-size: 13px; margin-top: 40px; }

/* Landing page */
.hero { text-align: center; padding: 48px 0 24px; }
.hero .drop { font-size: 56px; }
.hero h1 { font-size: 34px; font-weight: 800; margin: 12px 0 6px; }
.hero p { color: var(--muted); margin: 0; }
.cards { display: grid; gap: 16px; margin-top: 32px; }
.card {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px;
  text-decoration: none;
  color: var(--ink);
}
.card h3 { margin: 0 0 6px; font-size: 18px; font-weight: 800; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }