:root {
  --bg: #f1f2f4;
  --card: #ffffff;
  --ink: #15181d;
  --ink2: #535a66;
  --line: #dde0e5;
  --tape: #0d0e10;
  --tape-ink: #ffffff;
  --key: #15181d;
  --key-ink: #ffffff;
  --link: #1f5fbf;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --card: #15171b;
    --ink: #eef0f3;
    --ink2: #a3a9b4;
    --line: #2a2e35;
    --tape: #f3f3ef;
    --tape-ink: #0d0e10;
    --key: #e8eaee;
    --key-ink: #15181d;
    --link: #7fb0ff;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
main { max-width: 640px; margin: 0 auto; padding: 48px 16px 64px; }
a { color: var(--link); }
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.01em; }
h1 { font-size: 34px; margin: 28px 0 8px; }
h2 { font-size: 22px; margin: 36px 0 8px; }
h3 { font-size: 18px; margin: 24px 0 4px; }
p, li { color: var(--ink2); }
p strong, li strong { color: var(--ink); }
.tape {
  display: inline-block;
  background: var(--tape);
  color: var(--tape-ink);
  font-weight: 900;
  font-size: 26px;
  letter-spacing: 0.01em;
  padding: 6px 12px 5px;
  border-radius: 4px;
  transform: rotate(-1.5deg);
  text-decoration: none;
}
.lede { font-size: 20px; color: var(--ink); margin: 0 0 24px; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 8px 20px;
  border-radius: 12px;
  background: var(--key);
  color: var(--key-ink);
  font-weight: 600;
  text-decoration: none;
}
.badge small { display: block; font-weight: 400; font-size: 12px; opacity: 0.8; }
.key {
  display: block;
  width: 100%;
  text-align: center;
  padding: 15px 20px;
  border-radius: 14px;
  background: var(--key);
  color: var(--key-ink);
  font-weight: 600;
  text-decoration: none;
  margin: 12px 0;
}
.key.secondary { background: var(--card); color: var(--ink); border: 1px solid var(--line); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 4px 20px; margin: 16px 0; }
.num {
  display: inline-block;
  background: var(--tape);
  color: var(--tape-ink);
  font-weight: 800;
  padding: 2px 10px;
  border-radius: 4px;
  font-variant-numeric: tabular-nums;
}
nav.lang { font-size: 15px; margin-top: 8px; }
footer { max-width: 640px; margin: 0 auto; padding: 0 16px 48px; font-size: 14px; color: var(--ink2); }
footer a { color: var(--ink2); }
.meta { font-size: 14px; }