/* WLES Foundation — institutional-register static styles.
 * Serious, understated. Reference: apache.org, linuxfoundation.org, w3.org.
 * Georgia body, sans-serif headings, two-colour palette plus neutrals.
 */

:root {
  --bg: #fafaf7;        /* warm off-white */
  --ink: #1a1a1a;       /* near-black body text */
  --ink-soft: #555;     /* secondary text */
  --ink-faint: #888;    /* tertiary */
  --accent: #14532d;    /* dark forest green — single accent */
  --rule: #d8d4cb;      /* hairline dividers */
  --rule-strong: #a8a39a;
  --code-bg: #ededea;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--ink); }
body {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
a:visited { color: var(--accent); }

/* Nav + header */
header.site {
  border-bottom: 1px solid var(--rule-strong);
  padding: 20px 0 16px;
  margin-bottom: 32px;
}
header.site .wordmark {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--ink);
}
header.site .wordmark a { color: inherit; text-decoration: none; }
header.site nav {
  margin-top: 10px;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 14px;
}
header.site nav a {
  color: var(--ink-soft);
  text-decoration: none;
  margin-right: 20px;
}
header.site nav a:hover { color: var(--accent); text-decoration: underline; }
header.site nav a.active { color: var(--accent); font-weight: 600; }

/* Layout */
.container { max-width: 720px; margin: 0 auto; padding: 0 24px 64px; }

/* Typography */
h1, h2, h3, h4 {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.3;
}
h1 { font-size: 30px; margin: 0 0 24px; letter-spacing: -0.005em; }
h2 { font-size: 20px; margin: 40px 0 12px; }
h3 { font-size: 16px; margin: 28px 0 10px; color: var(--ink-soft); letter-spacing: 0.02em; text-transform: uppercase; font-size: 13px; }

p { margin: 0 0 16px; }
p.lede { font-size: 19px; line-height: 1.55; color: var(--ink); margin-bottom: 28px; }

ul, ol { margin: 0 0 16px; padding-left: 22px; }
li { margin-bottom: 6px; }

hr { border: none; border-top: 1px solid var(--rule); margin: 40px 0; }

blockquote {
  margin: 20px 0;
  padding: 4px 0 4px 20px;
  border-left: 3px solid var(--accent);
  color: var(--ink-soft);
  font-style: italic;
}

code, pre {
  font-family: "SF Mono", Monaco, "Cascadia Code", ui-monospace, Consolas, monospace;
  background: var(--code-bg);
  font-size: 13.5px;
}
code { padding: 1px 5px; border-radius: 2px; }
pre { padding: 12px 14px; border-radius: 3px; overflow-x: auto; line-height: 1.5; border: 1px solid var(--rule); background: var(--code-bg); }

table { border-collapse: collapse; width: 100%; margin: 16px 0; font-size: 15px; }
th, td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--rule); }
th { font-family: system-ui, -apple-system, sans-serif; font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--ink-soft); font-weight: 600; }

/* Institutional boxes */
.status-box {
  border: 1px solid var(--rule-strong);
  padding: 16px 20px;
  margin: 24px 0;
  background: #fff;
}
.status-box .t {
  font-family: system-ui, sans-serif;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 6px;
}
.status-box .b { font-size: 15px; line-height: 1.55; color: var(--ink); }

/* Footer */
footer.site {
  border-top: 1px solid var(--rule);
  padding: 24px 0;
  margin-top: 48px;
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 13px;
  color: var(--ink-faint);
  line-height: 1.5;
}
footer.site a { color: var(--ink-soft); }

/* Timeline */
.timeline-item {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}
.timeline-item:last-child { border-bottom: none; }
.timeline-item .when {
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.01em;
}
.timeline-item .what { font-size: 16px; }

/* Member entry */
.member {
  padding: 20px 0;
  border-bottom: 1px solid var(--rule);
}
.member:last-child { border-bottom: none; }
.member h3 {
  font-size: 18px;
  color: var(--ink);
  text-transform: none;
  letter-spacing: normal;
  margin: 0 0 4px;
}
.member .meta {
  font-family: system-ui, sans-serif;
  font-size: 13px;
  color: var(--ink-faint);
  margin-bottom: 10px;
}

/* TOC */
.toc {
  border: 1px solid var(--rule);
  padding: 16px 20px;
  margin: 24px 0;
  background: #fff;
}
.toc h2,
.toc h3 {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 600;
}
.toc ol { margin: 0; padding-left: 22px; font-family: system-ui, sans-serif; font-size: 14px; }
.toc ol li { margin-bottom: 4px; }

/* ── Accessibility ────────────────────────────────────────────────────
 * Focus indication — WCAG 2.4.7 (AA). A visible, high-contrast focus
 * ring on every interactive element. :focus-visible so the ring only
 * appears for keyboard / AT users, not on pointer click (which matches
 * native OS behaviour on macOS / Windows).
 * Contrast of the amber outline on the cream/white backgrounds:
 *   outline #14532d (accent) on #fafaf7 = 10.3:1, passes AAA. */
:focus { outline: none; }
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}
/* Links are inline, so use a custom focus box-shadow to avoid visual jumps */
a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  text-decoration-thickness: 2px;
  border-radius: 2px;
}

/* Skip-to-content link — WCAG 2.4.1 (A). Hidden until focused. */
.skip-link {
  position: absolute; top: -40px; left: 0; z-index: 100;
  background: var(--accent); color: #fff; padding: 8px 16px;
  font-family: system-ui, -apple-system, sans-serif; font-size: 14px;
  text-decoration: none;
}
.skip-link:focus { top: 0; }

/* Reduced-motion — WCAG 2.3.3 (AAA, but good practice). This site is
 * largely static, but the guard is in place should animations be added
 * later (e.g., a scroll-triggered activation-log timeline). */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Mobile */
@media (max-width: 560px) {
  body { font-size: 16px; }
  .container { padding: 0 18px 48px; }
  header.site nav a { display: inline-block; margin-right: 14px; margin-bottom: 4px; }
  .timeline-item { grid-template-columns: 1fr; gap: 4px; }
  h1 { font-size: 26px; }
}