@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&display=swap');
:root {
  /* Brand cyan from vizolabs.com. --brand is the bright cyan, used on the
     dark topbar where it pops. --accent is a deeper teal of the same hue for
     body links, so they stay legible on the white page (the site only uses
     the bright #01D4FF against its dark background). */
  --brand: #01D4FF;
  --accent: #0e7490;
  --ink: #1f2430;
  --muted: #5b6472;
  --line: #e7e9ee;
  --bg: #ffffff;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
}
.topbar {
  background: linear-gradient(135deg, #0c3b46, #0b1620);
  padding: 16px 24px;
}
.topbar a {
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: .2px;
}
.topbar .dot { color: var(--brand); }
.wrap { max-width: 760px; margin: 0 auto; padding: 40px 24px 80px; }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 6px; }
.eff { color: var(--muted); font-size: 14px; margin: 0 0 28px; }
h2 { font-size: 20px; margin: 36px 0 12px; }
p { margin: 0 0 16px; }
ul { margin: 0 0 16px; padding-left: 22px; }
li { margin: 0 0 8px; }
a { color: var(--accent); }
.intro { font-size: 17px; }
hr { border: none; border-top: 1px solid var(--line); margin: 44px 0 24px; }
.footer { color: var(--muted); font-size: 14px; }
.footer a { font-weight: 600; }
@media (max-width: 600px) {
  .wrap { padding: 28px 18px 60px; }
  h1 { font-size: 25px; }
  h2 { font-size: 18px; }
}