:root {
  --bg: #f7f5f2;
  --card: #ffffff;
  --ink: #2d2926;
  --muted: #6b6258;
  --teal: #4a9e8e;
  --border: #e7e2da;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 2rem 1.25rem 5rem; }
header.brand { display: flex; align-items: center; gap: .6rem; margin-bottom: 2rem; }
header.brand img { width: 34px; height: 34px; }
header.brand .name {
  font-weight: 800; letter-spacing: .18em; text-transform: uppercase;
  font-size: .8rem; color: var(--muted);
}
h1 { font-size: 1.9rem; margin: 0 0 .35rem; line-height: 1.2; }
.eff { color: var(--muted); font-size: .85rem; margin: 0 0 1.5rem; }
.lead { font-size: 1rem; }
h2 { font-size: 1.15rem; margin: 2.25rem 0 .6rem; }
h3 { font-size: 1rem; margin: 1.5rem 0 .4rem; }
p, li { font-size: .96rem; }
a { color: var(--teal); }
ul { padding-left: 1.25rem; }
li { margin: .3rem 0; }
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: .9rem 1.25rem; margin: 1.25rem 0;
}
.card.warn { border-left: 4px solid var(--teal); }
.back {
  display: inline-block; margin-top: 2.5rem; color: var(--teal);
  text-decoration: none; font-weight: 600; font-size: .9rem;
}
footer {
  margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--border);
  color: var(--muted); font-size: .8rem;
}
footer a { color: var(--muted); }
@media (prefers-color-scheme: dark) {
  :root { --bg: #1a1814; --card: #242018; --ink: #f0ece6; --muted: #9a9488; --border: #33302a; }
}