:root {
  --paper:   #ffffff;
  --ink:     #1a1723;
  --ink-2:   #45405a;
  --muted:   #6d6784;
  --line:    #e7e3ef;
  --accent:  #6338d8;
  --soft:    #f3eefe;
  --warm:    #fdf4e7;
  --warm-ink:#8a5210;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
}
.band { background: var(--accent); color: #fff; padding: 2.4rem 0 2rem; }
.wrap { max-width: 46rem; margin: 0 auto; padding: 0 1.4rem; }
.band .wrap { display: flex; flex-direction: column; gap: 0.45rem; }
.brand { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; opacity: 0.8; }
h1 { margin: 0; font-size: clamp(1.7rem, 5vw, 2.4rem); font-weight: 800; letter-spacing: -0.02em; line-height: 1.12; }
.band .sub { opacity: 0.9; font-size: 1.02rem; }
main { padding: 2.2rem 0 3rem; }
h2 {
  font-size: 1.32rem; font-weight: 700; letter-spacing: -0.01em;
  margin: 2.4rem 0 0.5rem; padding-top: 1.2rem; border-top: 1px solid var(--line);
}
h2:first-of-type { border-top: 0; padding-top: 0; margin-top: 0; }
h3 { font-size: 1.06rem; font-weight: 700; margin: 1.5rem 0 0.25rem; }
p { margin: 0.65rem 0; color: var(--ink-2); }
strong { color: var(--ink); font-weight: 700; }
a { color: var(--accent); }
.lead { font-size: 1.08rem; color: var(--ink); }
ul, ol { margin: 0.7rem 0; padding-left: 0; }
ul { list-style: none; }
ul li { position: relative; padding-left: 1.3rem; margin: 0.4rem 0; color: var(--ink-2); }
ul li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 6px; height: 6px; background: var(--accent); border-radius: 50%; }
ol { padding-left: 1.4rem; }
ol li { margin: 0.5rem 0; color: var(--ink-2); padding-left: 0.2rem; }
.box { background: var(--soft); border-radius: 10px; padding: 1.05rem 1.25rem; margin: 1.3rem 0; }
.box p { margin: 0.35rem 0; }
.box p:first-child { margin-top: 0; }
.box p:last-child { margin-bottom: 0; }
.box .t { font-weight: 700; color: var(--accent); }
.warn { background: var(--warm); border-left: 3px solid var(--warm-ink); border-radius: 0 8px 8px 0; padding: 1.05rem 1.25rem; margin: 1.3rem 0; }
.warn .t { font-weight: 700; color: var(--warm-ink); }
.warn p { margin: 0.35rem 0; }
.warn p:first-child { margin-top: 0; }
.warn p:last-child { margin-bottom: 0; }
.check { list-style: none; padding: 0; margin: 0.8rem 0; }
.check li {
  position: relative; padding: 0.72rem 0 0.72rem 2.1rem;
  border-bottom: 1px solid var(--line); color: var(--ink-2); margin: 0;
}
.check li::before {
  content: ""; position: absolute; left: 0; top: 0.82em;
  width: 17px; height: 17px; border: 2px solid var(--accent);
  border-radius: 4px; background: transparent;
}
.check li b { color: var(--ink); }
.nav { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.1rem; }
.nav a {
  display: inline-block; text-decoration: none;
  background: #ffffff2e; color: #fff; border: 1px solid #ffffff5c;
  padding: 0.5rem 0.95rem; border-radius: 999px; font-size: 0.92rem; font-weight: 600;
}
.nav a.on { background: #fff; color: var(--accent); border-color: #fff; }
footer { border-top: 1px solid var(--line); padding: 1.5rem 0 3rem; color: var(--muted); font-size: 0.9rem; }
footer .wrap { display: flex; flex-direction: column; gap: 0.3rem; }
@media (prefers-color-scheme: dark) {
  :root {
    --paper:#141119; --ink:#ece9f4; --ink-2:#c6bfd6; --muted:#948ca9;
    --line:#2c2740; --accent:#a98cff; --soft:#211b34;
    --warm:#2a2114; --warm-ink:#e0a557;
  }
}
@media print {
  :root { --paper:#fff; --ink:#000; --ink-2:#333; --muted:#555; --line:#ccc; --accent:#4a2bb0; --soft:#f2eefc; }
  body { font-size: 10.5pt; }
  .band { padding: 1.4rem 0 1.2rem; }
  .nav { display: none; }
  h2 { page-break-after: avoid; }
  .box, .warn, .check li { page-break-inside: avoid; }
}