:root {
  --navy:     #1c4f78;
  --maroon:   #7b241c;
  --warm-bg:  #fdf0c0;
  --charcoal: #2c2c2c;

  --serif: 'Merriweather', Georgia, serif;
  --body:  'Merriweather Sans', sans-serif;
  --card-bg-blue: #e1eef7;
  --card-accent-blue: #1c4f78;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--body);
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--charcoal);
  background: #fff;
}

/* ── Sections ── */
.section-white { background: #fff; }
.section-gray  { background: var(--warm-bg); }
.section-dark { background: linear-gradient(180deg, #1a1a1a, #0d1929); }
.section-white + .section-white { border-top: 1px solid rgba(28, 79, 120, 0.15); }

.section-gray .wrap {
  padding: 3.5rem 2rem;
  max-width: 800px;
  text-align: center;
}

/* ── Hero ── */
.section-dark .wrap { padding: 6rem 2rem; }

.hero-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 1.25rem;
}

.hero-deck {
  font-family: var(--body);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 300;
  color: rgba(255, 255, 255, 0.72);
  max-width: 55ch;
  margin: 0 auto;
  line-height: 1.9;
}

/* ── Layout ── */
.wrap {
  max-width: 1280px;
  margin: 0 auto;
  padding: 3rem 2rem;
}
.wrap.narrow  { max-width: 800px; }
.wrap.center  { text-align: center; }

.wrap.narrow p {
  max-width: 680px;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

/* ── Typography ── */
h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: 0.015em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--navy);
}

h2 {
  font-size: 2rem;
  color: var(--charcoal);
  margin-bottom: 0.5rem;
}

h3 {
  font-size: 1.4rem;
  color: var(--charcoal);
  margin: 1.25rem 0 0.75rem;
}

.banner-subtitle {
  font-weight: 550;
  color: rgba(44, 44, 44, 0.8);
  font-size: clamp(1rem, 2vw, 1.15rem);
  margin-left: auto;
  margin-right: auto;
}

.display {
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2.5vw, 1.75rem);
  line-height: 1.4;
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1rem;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}
.center p { margin-left: auto; margin-right: auto; }

ul {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}
ul li { margin-bottom: 0.4rem; }

a { color: var(--navy); }
strong { color: #0a2d52; font-weight: 700; }

/* ── Image containers ── */
.img-narrow { max-width: 600px; margin: 0 auto; }
.img-wide   { max-width: 860px; margin: 0 auto; }
.img-narrow img,
.img-wide img { width: 100%; }

/* ── Flush top ── */
.wrap.flush-top,
.flush-top .wrap { padding-top: 0; }

/* ── Ratio rows ── */
.ratio-list { display: flex; flex-direction: column; gap: 0.75rem; margin: 1rem 0 1.5rem; }
.ratio-row  { display: flex; align-items: baseline; gap: 0.75rem; }
.ratio-row p { margin: 0; max-width: none; }

.badge {
  flex-shrink: 0;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 0.85rem;
  white-space: nowrap;
  min-width: 90px;
  text-align: center;
}
.badge.neutral { background: #ddd;    color: #333; }
.badge.under   { background: #d6eaf8; color: #1c4f78; }
.badge.over    { background: #fadbd8; color: #7b241c; }

/* ── Label strip ── */
.label-strip {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1rem;
  background: var(--warm-bg);
  font-size: 0.875rem;
  margin: 1.5rem 0;
  border-radius: 8px;
  background: linear-gradient(to right, rgba(214, 234, 248, 0.8), rgba(250, 219, 216, 0.8));
}

/* ── Footer ── */
footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
}
footer .wrap { padding: 2.5rem 2rem; }
.footer-sources {
  font-family: var(--body);
  font-size: 14px;
  margin-top: 0.75rem;
}
footer strong { color: inherit; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .two-col { grid-template-columns: 1fr; }
  .label-strip { flex-direction: column; }
}

.wrap:not(.two-col) > div[id^="observablehq-"] {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.wrap narrow h3,
h3:has(+ .ratio-list) {
  background: #f9f9f9;
  padding: 1rem;
  border-radius: 6px;
  text-align: center;
  border: 1px solid #eaeaea;
}

.editorial-card-left {
  background-color: var(--card-bg-blue);
  border-left: 4px solid var(--card-accent-blue);
  padding: 1.5rem 2rem;
  border-radius: 0 6px 6px 0;
  margin-left: 20px;
}

.editorial-card-right {
  background-color: var(--card-bg-blue);
  border-right: 4px solid var(--card-accent-blue);
  padding: 1.5rem 2rem;
  border-radius: 0 6px 6px 0;
  margin-right: 40px;
}

.editorial-card p {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--charcoal);
  margin: 0;
  line-height: 1.7;
}

.two-col.align-top {
  align-items: end;
}

/* ── IAAO Criteria Cards ── */
.criteria-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.criteria-card {
  background: var(--card-bg-blue);
  border-top: 3px solid var(--navy);
  border-radius: 6px;
  padding: 1.5rem;
  text-align: center;
}

.criteria-card strong {
  display: block;
  font-family: var(--serif);
  font-size: 1.1rem;
  color: var(--navy);
  margin-bottom: 0.5rem;
}

.criteria-card p {
  font-size: 0.95rem;
  margin: 0;
  max-width: none;
}

@media (max-width: 768px) {
  .criteria-cards { grid-template-columns: 1fr; }
}