/* index.css — externalized from index.html (strict CSP: no inline styles). */

.arch-wrap { max-width: 760px; margin: 0 auto; padding: 0 24px 64px; }
  .arch-wrap h1 { font-family: var(--serif); font-size: 34px; font-weight: 500; line-height: 1.2; margin: 32px 0 12px; }
  .arch-wrap h2 { font-family: var(--serif); font-size: 22px; font-weight: 500; margin: 36px 0 4px; color: var(--ink); }
  .arch-rule { border-top: 1px solid var(--ink); width: 32px; margin: 8px 0 16px; opacity: 0.6; }
  .arch-wrap p, .arch-wrap li { color: var(--ink-2); line-height: 1.75; font-size: 16px; }
  .arch-wrap .means li { padding: 4px 0; }
  .arch-wrap code { background: rgba(74,154,115,0.08); padding: 2px 6px; border-radius: 3px; font-size: 0.92em; }
  .arch-lede { font-size: 17px; line-height: 1.7; color: var(--ink-2); margin: 0 0 24px; }
  .arch-wrap details { margin: 12px 0; padding: 14px 18px; background: rgba(0,0,0,0.02); border: 1px solid var(--line-soft); border-radius: 6px; }
  .arch-wrap details > summary { cursor: pointer; font-family: var(--serif); font-size: 14px; letter-spacing: 0.06em; color: var(--ink); padding: 4px 0; }
  .arch-wrap details[open] { background: rgba(0,0,0,0.03); }
  .arch-wrap details .sub { font-family: var(--serif); font-size: 18px; margin: 18px 0 4px; color: var(--ink); }
  .arch-disclaimer { font-size: 13px; line-height: 1.65; color: var(--muted); margin: 40px 0 0; padding: 16px 18px; border-top: 1px solid var(--line-soft); }
  .arch-faq h3 { font-family: var(--serif); font-size: 16px; margin: 18px 0 2px; color: var(--ink); }
  .arch-faq p { margin: 0 0 8px; }
  .arch-kicker { font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); margin: 48px 0 6px; }