/* Styles for the static content pages (articles, guides, info pages, 404).
   Matches the app's night palette (see DESIGN.md). No web fonts, no JS. */
:root {
  color-scheme: dark;
  --bg: #0b1020;
  --bg-elev: #141a2e;
  --bg-deep: #08101f;
  --fg: #e7ecf5;
  --muted: #a7b2ca;
  --go: #38d39f;
  --accent: #8dbbff;
  --border: rgba(255, 255, 255, 0.12);
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 1rem; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--fg);
  background:
    radial-gradient(900px 420px at 15% 0%, rgba(56, 211, 159, 0.16), transparent 55%),
    radial-gradient(800px 520px at 85% 0%, rgba(110, 168, 254, 0.14), transparent 60%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg) 40%, #070a13 100%);
  background-attachment: fixed;
  line-height: 1.6;
  font-size: 1.0625rem;
}
a { color: var(--accent); text-underline-offset: 0.18em; }
a:hover { color: #b9d4ff; }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--go); outline-offset: 2px; border-radius: 4px; }
.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding-inline: max(1rem, env(safe-area-inset-left)) max(1rem, env(safe-area-inset-right));
}
.skip { position: absolute; left: -9999px; top: 0; background: var(--go); color: #06131a; padding: 0.5rem 1rem; z-index: 10; }
.skip:focus { left: 0.5rem; top: 0.5rem; }

.site-header { border-bottom: 1px solid var(--border); background: rgba(8, 16, 31, 0.7); }
.site-header__inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.5rem 1rem; padding-block: 0.7rem; }
.brand { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--fg); text-decoration: none; font-weight: 800; letter-spacing: -0.02em; font-size: 1.1rem; }
.site-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 0.25rem 0.9rem; font-size: 0.95rem; }
.site-nav a { color: var(--fg); text-decoration: none; padding: 0.35rem 0; min-height: 44px; display: inline-flex; align-items: center; }
.site-nav a:hover { color: var(--accent); }
.site-nav .nav-cta { background: var(--go); color: #06131a; font-weight: 700; border-radius: 999px; padding: 0.35rem 0.9rem; min-height: 40px; }
.site-nav .nav-cta:hover { color: #06131a; filter: brightness(1.08); }

main { padding-block: 1rem 3rem; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 0.25rem; padding: 0; margin: 0.25rem 0 1rem; font-size: 0.85rem; color: var(--muted); }
.crumbs li + li::before { content: '›'; margin-right: 0.25rem; color: var(--muted); }
.crumbs a { color: var(--muted); }

h1, h2, h3 { line-height: 1.2; letter-spacing: -0.02em; }
h1 { font-size: clamp(1.8rem, 6.5vw, 2.6rem); margin: 0.2rem 0 0.6rem; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.3rem, 4.5vw, 1.6rem); margin: 2.2rem 0 0.6rem; }
h3 { font-size: 1.15rem; margin: 1.6rem 0 0.4rem; }
.eyebrow { margin: 0; text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.76rem; font-weight: 800; color: var(--go); }
.eyebrow a { color: inherit; text-decoration: none; }
.lead { font-size: 1.15rem; color: #d3dbea; }
.muted { color: var(--muted); }
.byline, .dates { margin: 0.2rem 0; color: var(--muted); font-size: 0.92rem; }

.prose p, .prose li { max-width: 68ch; }
.prose ul, .prose ol { padding-left: 1.3rem; }
.prose li { margin: 0.25rem 0; }
.prose blockquote { margin: 1rem 0; padding: 0.6rem 1rem; border-left: 3px solid var(--go); background: var(--bg-elev); border-radius: 0 10px 10px 0; }
.prose code { background: var(--bg-elev); padding: 0.1em 0.35em; border-radius: 6px; font-size: 0.92em; }
.prose hr { border: 0; border-top: 1px solid var(--border); margin: 2rem 0; }
.table-wrap { overflow-x: auto; margin: 1rem 0; border: 1px solid var(--border); border-radius: 12px; }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { text-align: left; padding: 0.55rem 0.75rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: var(--bg-elev); }
tr:last-child td { border-bottom: 0; }

.toc { margin: 1.2rem 0; padding: 0.9rem 1.1rem; background: var(--bg-elev); border: 1px solid var(--border); border-radius: 14px; }
.toc h2 { margin: 0 0 0.4rem; font-size: 1rem; }
.toc ol { margin: 0; padding-left: 1.2rem; }
.toc li { margin: 0.15rem 0; }

.faq details { border: 1px solid var(--border); border-radius: 12px; padding: 0.6rem 0.9rem; margin: 0.5rem 0; background: var(--bg-elev); }
.faq summary { cursor: pointer; font-weight: 700; min-height: 32px; }
.faq details p { margin: 0.5rem 0 0.2rem; }

.cta { margin: 2rem 0; padding: 1.2rem 1.3rem; border-radius: 18px; border: 1px solid rgba(56, 211, 159, 0.35); background: linear-gradient(135deg, rgba(56, 211, 159, 0.14), rgba(110, 168, 254, 0.1)); }
.cta h2 { margin: 0 0 0.3rem; font-size: 1.3rem; }
.cta p { margin: 0 0 0.9rem; }
.button { display: inline-flex; align-items: center; min-height: 44px; padding: 0.5rem 1.1rem; border-radius: 999px; background: var(--go); color: #06131a; font-weight: 800; text-decoration: none; }
.button:hover { color: #06131a; filter: brightness(1.08); }
.button--ghost { background: transparent; color: var(--fg); border: 1px solid var(--border); }
.button--ghost:hover { color: var(--fg); background: var(--bg-elev); }

.sources { margin-top: 2rem; font-size: 0.92rem; }
.sources ol { padding-left: 1.3rem; }
.sources li { margin: 0.3rem 0; overflow-wrap: anywhere; }

.cards { list-style: none; padding: 0; margin: 0.8rem 0; display: grid; gap: 0.75rem; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); }
.card a { display: block; height: 100%; padding: 0.9rem 1rem; border-radius: 16px; background: var(--bg-elev); border: 1px solid var(--border); color: var(--fg); text-decoration: none; transition: border-color 0.15s; }
.card a:hover { border-color: rgba(56, 211, 159, 0.55); }
.card h3 { margin: 0 0 0.35rem; font-size: 1.05rem; color: #ffffff; }
.card p { margin: 0 0 0.4rem; color: var(--muted); font-size: 0.93rem; line-height: 1.45; }
.card .meta { font-size: 0.8rem; color: var(--go); }
.topic h2 a { color: var(--fg); text-decoration: none; }
.topic h2 a:hover { color: var(--accent); }
.related { margin-top: 1rem; }

.site-footer { border-top: 1px solid var(--border); padding-block: 1.5rem 2.5rem; color: var(--muted); font-size: 0.9rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; margin-bottom: 0.8rem; }
.footer-links a { color: var(--fg); min-height: 32px; display: inline-flex; align-items: center; }
.site-footer p { margin: 0.3rem 0; }
.site-footer a { color: var(--muted); }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
@media print {
  body { background: #fff; color: #000; }
  .site-header, .site-footer, .cta, .toc, .related { display: none; }
  a { color: #000; }
}