:root {
  color-scheme: light dark;
  --page: #F2FAF8;
  --card: #FFFFFF;
  --border: rgba(13,43,51,.16);
  --text: #0D2B33;
  --body-text: #1F3F48;
  --secondary: #3D5C65;
  --muted: #3D5C65;
  --accent: #0A6C69;
  --accent-hover: #085A58;
  --link: #2260C4;
  --toc: #EAF5F4;
  --toc-link: #FFFFFF;
  --toc-hover: #9DB6BB;
  --shadow: 0 8px 24px rgba(13,60,70,.10);
  --draft-bg: #FFF4DF;
  --draft-border: #8F5400;
  --draft-text: #4A2C00;
  --op-bg: #EAF5F4;
  --op-border: #9DB6BB;
  --op-code: #4A2C00;
}
@media (prefers-color-scheme: dark) {
  :root {
    --page: #0e1420;
    --card: #0F2832;
    --border: rgba(233,246,245,.18);
    --text: #E9F6F5;
    --body-text: #D3E6E8;
    --secondary: #A3C1C9;
    --muted: #A3C1C9;
    --link: #8DBBFF;
    --toc: #0B1F28;
    --toc-link: #153341;
    --toc-hover: #4A6A75;
    --shadow: 0 10px 28px rgba(0,0,0,.4);
    --draft-bg: #2E2410;
    --draft-border: #F5C26B;
    --draft-text: #FFE5AD;
    --op-bg: #153341;
    --op-border: #4A6A75;
    --op-code: #FFE5AD;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font: 16px/1.65 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
main { max-width: 940px; margin: 0 auto; padding: 24px 24px 48px; }
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 12px 0 24px;
  border-bottom: 1px solid var(--border);
}
.brand { color: var(--text); font-size: 24px; font-weight: 800; text-decoration: none; }
.back {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-weight: 650;
  text-decoration: none;
  transition: background-color .15s ease;
}
.back:hover { background: var(--accent-hover); }
a { color: var(--link); overflow-wrap: anywhere; }
a:focus-visible { outline: 3px solid var(--link); outline-offset: 3px; border-radius: 4px; }
h1 { margin: 0 0 22px; font-size: clamp(32px, 6vw, 46px); line-height: 1.12; letter-spacing: -.025em; }
h2 { margin: 34px 0 10px; font-size: 22px; line-height: 1.3; }
p, ul, ol { margin: 12px 0; }
p, li { color: var(--body-text); }
li { padding-left: 3px; margin: 6px 0; }

.offer-page main { max-width: 940px; }
.legal-document {
  margin: 24px 0 0;
  padding: clamp(20px, 4vw, 38px);
  border: 1px solid var(--border);
  border-radius: 28px;
  background: var(--card);
  box-shadow: var(--shadow);
}
.legal-document > p:first-of-type { font-size: 17px; color: var(--text); }
.legal-document > h2 {
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
}
.offer-toc {
  margin: 28px 0 34px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--toc);
}
.offer-toc .toc-title { margin: 0 0 14px; font-size: 18px; }
.offer-toc ol {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: section-link;
}
.offer-toc li { min-width: 0; margin: 0; padding: 0; counter-increment: section-link; }
.offer-toc a {
  display: flex;
  min-height: 44px;
  align-items: center;
  gap: 10px;
  padding: 9px 11px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: var(--toc-link);
  color: var(--secondary);
  line-height: 1.35;
  text-decoration: none;
}
.offer-toc a::before {
  content: counter(section-link, decimal-leading-zero);
  color: var(--link);
  font-size: 13px;
  font-weight: 750;
  font-variant-numeric: tabular-nums;
}
.offer-toc a:hover { border-color: var(--toc-hover); color: var(--text); }
.offer-page h2[id] { scroll-margin-top: 18px; }

.updated { color: var(--muted); font-size: 14px; }
.draft {
  margin: 24px 0;
  padding: 16px 18px;
  border: 1px solid var(--draft-border);
  border-radius: 14px;
  background: var(--draft-bg);
  color: var(--draft-text);
}
.draft strong { display: block; margin-bottom: 5px; }
.draft p { margin: 0; color: inherit; }
.operator {
  padding: 14px 16px;
  border: 1px solid var(--op-border);
  border-radius: 12px;
  background: var(--op-bg);
  overflow-wrap: anywhere;
}
.operator code { color: var(--op-code); font: inherit; }
footer {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 28px;
  padding: 22px 0 12px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}
footer a { color: var(--secondary); display: inline-flex; align-items: center; min-height: 44px; }

@media (max-width: 620px) {
  main { padding: 16px 15px 36px; }
  header { align-items: center; }
  .brand { font-size: 22px; }
  .legal-document { margin-top: 18px; padding: 20px 17px; border-radius: 16px; }
  .offer-toc { padding: 16px 13px; }
  .offer-toc ol { grid-template-columns: 1fr; gap: 6px; }
  .offer-toc a { min-height: 42px; }
  .legal-document > h2 { margin-top: 30px; padding-top: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}