/* Shared styles for Maple Research's public knowledge base (/learn/*).
   Plain static HTML pages, styled to match the brand (see
   src/styles/redesign.css for the source tokens) without any JS. */

:root {
  --bg: #0E1411;
  --card: #151b17;
  --ink: #E8ECF1;
  --ink-2: #AEB6C0;
  --ink-3: #828B96;
  --line: #232b26;
  --accent: #1F8A54;
  --accent-2: #3BB578;
  --serif: 'Newsreader', Georgia, serif;
  --sans: 'Inter', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html { color-scheme: dark; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.65;
}

a { color: var(--accent-2); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: #fff; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  border-bottom: 1px solid var(--line);
}
.site-header .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
}
.site-header .leaf { width: 22px; height: 22px; fill: var(--accent-2); }
.site-header .back-link { font-size: 13.5px; color: var(--ink-2); text-decoration: underline; }

.shell {
  display: flex;
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 24px 80px;
  gap: 48px;
  align-items: flex-start;
}

.side-nav { flex: 0 0 210px; position: sticky; top: 24px; }
.side-nav-title { font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 12px; }
.side-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.side-nav a { display: block; padding: 6px 10px; border-radius: 8px; font-size: 14px; color: var(--ink-2); text-decoration: none; }
.side-nav a:hover { background: var(--card); color: var(--ink); }
.side-nav a[aria-current="page"] { background: var(--card); color: var(--accent-2); font-weight: 600; }

main { flex: 1; min-width: 0; }

.breadcrumb { font-size: 13px; color: var(--ink-3); margin-bottom: 18px; }
.breadcrumb a { color: var(--ink-3); }

h1 { font-family: var(--serif); font-size: 34px; font-weight: 600; margin: 0 0 20px; letter-spacing: -0.01em; }
.content h2 { font-family: var(--serif); font-size: 22px; font-weight: 600; margin: 32px 0 10px; }
.content h3 { font-size: 17px; font-weight: 600; margin: 22px 0 6px; color: var(--ink); }
.content p { color: var(--ink-2); margin: 0 0 14px; max-width: 68ch; }
.content ul { color: var(--ink-2); max-width: 68ch; padding-left: 22px; }
.content li { margin-bottom: 10px; }
.content strong { color: var(--ink); }

.faq-item { border-bottom: 1px solid var(--line); padding-bottom: 16px; margin-bottom: 16px; }
.faq-item h3 { margin-top: 0; }

.glossary { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 22px; margin-top: 8px; }
.glossary-entry h3 { margin-top: 0; margin-bottom: 4px; color: var(--accent-2); font-size: 15.5px; }
.glossary-entry p { font-size: 14px; margin-bottom: 0; }

.hub-list { list-style: none; padding: 0; margin: 24px 0 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.hub-list li { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; }
.hub-list a { text-decoration: none; font-size: 15.5px; }
.hub-list a strong { color: var(--ink); }
.hub-list p { margin: 6px 0 0; font-size: 13.5px; color: var(--ink-3); }

.related { margin-top: 44px; padding-top: 20px; border-top: 1px solid var(--line); }
.related h2 { font-family: var(--serif); font-size: 16px; margin: 0 0 10px; }
.related ul { list-style: none; padding: 0; display: flex; gap: 14px; flex-wrap: wrap; }
.related li a { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 8px 14px; font-size: 13.5px; text-decoration: none; }

.site-footer {
  border-top: 1px solid var(--line);
  padding: 24px 28px 40px;
  text-align: center;
  color: var(--ink-3);
  font-size: 12.5px;
}
.site-footer nav { margin-top: 10px; display: flex; gap: 16px; justify-content: center; }
.site-footer nav a { color: var(--ink-3); }

@media (max-width: 760px) {
  .shell { flex-direction: column; padding: 24px 18px 60px; }
  .side-nav { position: static; width: 100%; }
  .side-nav ul { flex-direction: row; flex-wrap: wrap; }
}