:root {
  --paper: #F7F1EC;
  --paper-2: #EEDFD6;
  --card: #FBF8F5;
  --line: #E2D4CB;
  --cocoa: #3B2621;
  --cocoa-2: #5A3A31;
  --rose: #B98474;
  --rose-soft: #EEDFD6;
  --ink: #2F201C;
  --ink-2: #6A5751;
  --ink-3: #9A8781;
  --display: 'Cormorant Garamond', Georgia, serif;
  --body: 'DM Sans', system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; font: 400 16px/1.7 var(--body); color: var(--ink); background: var(--paper); -webkit-font-smoothing: antialiased; }
a { color: var(--cocoa); }
.wrap { width: min(1080px, 100% - 40px); margin-inline: auto; }

header.top { position: sticky; top: 0; z-index: 10; background: rgba(247, 241, 236, .88); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { font-family: var(--display); font-size: 30px; font-weight: 600; line-height: 1; color: var(--ink); text-decoration: none; display: inline-flex; align-items: center; gap: 8px; }
.brand img { height: 28px; width: auto; }
.back { font-size: .92rem; font-weight: 500; color: var(--ink-2); text-decoration: none; }
.back::before { content: '← '; }
.back:hover { color: var(--cocoa); }

.hero { margin-top: 28px; padding: 48px 40px; border-radius: 28px; color: var(--card); background: linear-gradient(160deg, var(--cocoa-2), var(--cocoa)); }
.eyebrow { font-size: .75rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--rose-soft); }
.hero h1 { margin: 10px 0 12px; font-family: var(--display); font-weight: 500; font-size: clamp(2.2rem, 5vw, 3.2rem); line-height: 1.1; }
.hero p { margin: 0; max-width: 640px; color: rgba(251, 248, 242, .8); }
.hero .date { margin-top: 18px; font-size: .88rem; color: var(--rose-soft); }

.grid { display: grid; grid-template-columns: 250px 1fr; gap: 24px; align-items: start; margin: 24px 0 64px; }
.toc { position: sticky; top: 92px; display: grid; gap: 4px; padding: 22px; border-radius: 20px; background: var(--card); border: 1px solid var(--line); font-size: .9rem; }
.toc b { margin-bottom: 8px; font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }
.toc a { color: var(--ink-2); text-decoration: none; padding: 3px 0; }
.toc a:hover { color: var(--cocoa); }
.doc { padding: 12px 40px; border-radius: 20px; background: var(--card); border: 1px solid var(--line); }
.doc section { padding: 28px 0; border-bottom: 1px solid var(--line); }
.doc section:last-child { border-bottom: 0; }
.doc h2 { margin: 0 0 12px; font-family: var(--display); font-weight: 500; font-size: 1.6rem; color: var(--cocoa); }
.doc p { margin: 0 0 12px; color: var(--ink-2); }
.doc ul { margin: 0 0 12px; padding-left: 22px; color: var(--ink-2); }
.doc li { margin-bottom: 6px; }
.doc li::marker { color: var(--rose); }
.doc strong { color: var(--ink); font-weight: 600; }
.company { padding: 18px 22px; border-radius: 16px; background: var(--paper); border: 1px solid var(--line); }
.company p { margin: 0; }

footer { border-top: 1px solid var(--line); padding: 28px 0 40px; font-size: .88rem; color: var(--ink-3); }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; }
footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
footer a { color: var(--ink-2); text-decoration: none; }
footer a:hover, footer a[aria-current] { color: var(--cocoa); }

@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr; }
  .toc { position: static; }
  .hero { padding: 36px 24px; border-radius: 22px; }
  .doc { padding: 4px 22px; }
}