/* ============================================================================
   Static content pages (about / methodology / faq / analysis)
   Server-rendered HTML so the content is readable without JavaScript.
   Reuses the design tokens from colors_and_type.css.
   ============================================================================ */

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg-1);
  color: var(--fg-2);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

.sp-wrap { max-width: 760px; margin: 0 auto; padding: 0 24px; }

/* ---- header --------------------------------------------------------------- */
.sp-hdr {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg-1) 88%, transparent);
  backdrop-filter: blur(14px) saturate(1.3);
  border-bottom: 1px solid var(--border-1);
}
.sp-hdr-in { max-width: 1100px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; gap: 18px; height: 60px; flex-wrap: wrap; }
.sp-brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; }
.sp-brand .mark {
  width: 32px; height: 32px; border-radius: 9px; background: var(--accent); color: var(--fg-on-accent);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 900; font-size: 14px; letter-spacing: -0.04em;
}
.sp-brand .wm { font-family: var(--font-display); font-weight: 900; font-size: 15px; letter-spacing: -0.03em; color: var(--fg-1); }
.sp-brand .wm .vs { color: var(--accent); font-style: italic; }
.sp-nav { display: flex; gap: 2px; margin-left: auto; flex-wrap: wrap; }
.sp-nav a {
  font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--fg-3); text-decoration: none; padding: 8px 11px; border-radius: var(--r-sm);
}
.sp-nav a:hover { color: var(--fg-1); background: var(--surface-1); }
.sp-nav a.cur { color: var(--accent); }

/* ---- article -------------------------------------------------------------- */
.sp-article { padding: 52px 0 24px; }
.sp-eyebrow {
  font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--accent); margin: 0 0 12px;
}
.sp-article h1 {
  font-family: var(--font-display); font-weight: 800; font-size: clamp(30px, 4vw, 44px);
  line-height: 1.04; letter-spacing: -0.02em; color: var(--fg-1); margin: 0 0 8px;
}
.sp-lede { font-size: 19px; line-height: 1.55; color: var(--fg-2); margin: 0 0 8px; }
.sp-article h2 {
  font-family: var(--font-display); font-weight: 800; font-size: 26px; line-height: 1.12;
  letter-spacing: -0.015em; color: var(--fg-1); margin: 40px 0 12px;
}
.sp-article h3 {
  font-family: var(--font-display); font-weight: 700; font-size: 18px; color: var(--fg-1); margin: 28px 0 8px;
}
.sp-article p { font-size: 16px; line-height: 1.7; margin: 0 0 16px; }
.sp-article ul, .sp-article ol { font-size: 16px; line-height: 1.7; padding-left: 22px; margin: 0 0 16px; }
.sp-article li { margin: 0 0 8px; }
.sp-article strong { color: var(--fg-1); font-weight: 600; }
.sp-article a { color: var(--accent); text-decoration: none; }
.sp-article a:hover { text-decoration: underline; }
.sp-article code {
  font-family: var(--font-mono); font-size: 13px; color: var(--fg-1);
  background: var(--surface-1); border: 1px solid var(--border-1); border-radius: var(--r-xs); padding: 1px 6px;
}
.sp-meta { font-family: var(--font-mono); font-size: 12px; color: var(--fg-3); letter-spacing: 0.02em; margin: 0 0 28px; }

.sp-hashbox {
  display: flex; align-items: center; gap: 10px; background: var(--surface-1);
  border: 1px solid var(--border-1); border-radius: var(--r-md); padding: 12px 14px; margin: 0 0 16px;
  overflow-x: auto;
}
.sp-hashbox code { background: none; border: none; padding: 0; color: var(--fg-2); white-space: nowrap; }

/* table */
.sp-table { width: 100%; border-collapse: collapse; margin: 0 0 20px; font-size: 14px; }
.sp-table th, .sp-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border-1); }
.sp-table th { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--fg-3); }
.sp-table td { color: var(--fg-2); }
.sp-table td strong { color: var(--fg-1); }

/* callout */
.sp-note { background: var(--surface-1); border: 1px solid var(--border-1); border-left: 3px solid var(--accent);
  border-radius: var(--r-md); padding: 16px 18px; margin: 0 0 20px; }
.sp-note p:last-child { margin-bottom: 0; }

/* cross-links / cards */
.sp-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin: 28px 0; }
.sp-card { display: block; background: var(--surface-1); border: 1px solid var(--border-1); border-radius: var(--r-md);
  padding: 16px 18px; text-decoration: none; transition: border-color .15s, background .15s; }
.sp-card:hover { border-color: var(--border-2); background: var(--surface-2); }
.sp-card .k { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--accent); }
.sp-card .t { display: block; font-family: var(--font-display); font-weight: 700; font-size: 17px; color: var(--fg-1); margin: 6px 0 4px; }
.sp-card .d { font-size: 13px; color: var(--fg-3); line-height: 1.5; }

/* footer */
.sp-ftr { border-top: 1px solid var(--border-1); margin-top: 48px; padding: 28px 0 56px; }
.sp-ftr-in { max-width: 1100px; margin: 0 auto; padding: 0 24px;
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; align-items: center; }
.sp-ftr .disc { font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); letter-spacing: 0.02em; }
.sp-ftr-links { display: flex; gap: 16px; flex-wrap: wrap; }
.sp-ftr-links a { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--fg-3); text-decoration: none; }
.sp-ftr-links a:hover { color: var(--fg-1); }
.sp-ftr-cookie { max-width: 1100px; margin: 12px auto 0; padding: 0 24px; font-family: var(--font-mono); font-size: 11px; color: var(--fg-3); letter-spacing: 0.02em; line-height: 1.5; }
.sp-ftr-cookie a { color: var(--fg-2); text-decoration: none; }
.sp-ftr-cookie a:hover { color: var(--fg-1); }

.sp-backline { margin: 36px 0 0; font-family: var(--font-mono); font-size: 12px; }
.sp-backline a { color: var(--accent); text-decoration: none; }