/* Quintic Research — site styles
   Palette: paper, ink, muted, faint, hairline, oxblood accent.
   Typeface: Libre Baskerville. No JavaScript. */

:root {
  --paper:    #F5F4F0;
  --ink:      #1C1F24;
  --muted:    #62656C;
  --faint:    #8A8C92;
  --hairline: #E2DFD8;
  --accent:   #6E2D34;
  --accent-deep: #561F26;

  --measure: 40rem;
  --serif: 'Libre Baskerville', Georgia, 'Times New Roman', serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.75;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); }

/* Letterhead rule across the top of every page */
.topbar { height: 5px; background: var(--accent); }

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 54px 28px 72px;
}

/* ---- Header ---- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  text-decoration: none;
}
.mark {
  color: var(--accent);
  height: 42px;
  width: auto;
  display: block;
}
.wordmark {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--ink);
  letter-spacing: 0.4px;
}
.nav { display: flex; gap: 26px; }
.nav a {
  font-size: 0.9375rem;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.3px;
}
.nav a:hover { color: var(--accent-deep); text-decoration: underline; text-underline-offset: 3px; }

/* ---- Hairline rule ---- */
.rule {
  border: 0;
  border-top: 1px solid var(--hairline);
  margin: 30px 0 40px;
}

/* ---- Hero statement (home) ---- */
.hero {
  font-size: clamp(1.55rem, 1rem + 2.2vw, 1.9rem);
  line-height: 1.46;
  font-weight: 400;
  letter-spacing: 0.2px;
  max-width: var(--measure);
  margin: 0;
}

/* ---- Page content ---- */
.page-title {
  font-size: clamp(1.5rem, 1rem + 1.8vw, 1.8rem);
  line-height: 1.3;
  font-weight: 700;
  margin: 0 0 24px;
}
.content h2 {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
  margin: 40px 0 12px;
}
.content p {
  margin: 0 0 18px;
  max-width: var(--measure);
}
.content a { color: var(--accent); text-underline-offset: 2px; }
.content a:hover { color: var(--accent-deep); }

.eff-date { color: var(--muted); font-style: italic; margin: 0 0 8px; }

/* ---- Eyebrow labels + address blocks ---- */
.eyebrow {
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 10px;
}
.block { margin-top: 48px; }
.field { margin-top: 36px; }
.addr { margin: 0; line-height: 1.7; font-size: 1rem; }
.field a { color: var(--accent); font-size: 1.05rem; }

/* ---- Footer ---- */
.site-footer {
  margin-top: 64px;
  border-top: 1px solid var(--hairline);
  padding-top: 30px;
}
.footer-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-bottom: 20px;
}
.footer-top .fname { font-size: 1rem; color: var(--ink); letter-spacing: 0.3px; }
.footer-top a { font-size: 0.875rem; color: var(--accent); text-underline-offset: 2px; }
.footer-top a:hover { color: var(--accent-deep); }
.legal {
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--muted);
  max-width: 42rem;
  margin: 0 0 14px;
}
.copyright { font-size: 0.8125rem; line-height: 1.8; color: var(--faint); margin: 20px 0 0; }

/* ---- Focus visibility ---- */
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

@media (max-width: 520px) {
  .wrap { padding: 40px 20px 56px; }
  .mark { height: 36px; }
  .wordmark { font-size: 1.3rem; }
}