:root {
  --cgd-teal: #0B4C5B;
  --cgd-gold: #FFB52C;
  --cgd-teal-gray: #85A5AD;
  --cgd-light-teal: #006970;
  --cgd-cream: #F3F6F7;
  --cgd-dark-gray: #394649;
  --cgd-teal-black: #1A272A;
  --cgd-blue: #2D99B5;
  --cgd-light-blue: #BFDEE0;
  --cgd-light-gold: #FEE8BF;
  --cgd-light-gray: #DFE0E2;
  --cgd-red: #D15553;
  --cgd-green: #00896C;

  --font: 'sofia-pro', 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --gap: 1rem;
}

/* Iframe embed reset: no outer chrome or spacing (see interactive coding standard) */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  overflow-x: hidden;
  background: transparent;
  font-family: var(--font);
  color: var(--cgd-dark-gray);
  font-size: 1rem;
  line-height: 1.45;
}

.wrap { padding: 0.25rem 0 1rem; }

a { color: var(--cgd-teal); text-decoration: underline; }

:focus-visible {
  outline: 3px solid var(--cgd-gold);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

/* ---- Tabs ---- */
.tabs {
  display: flex;
  gap: 0.25rem;
  border-bottom: 1px solid var(--cgd-light-gray);
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}
.tab {
  font: inherit;
  font-weight: 600;
  background: none;
  border: none;
  border-bottom: 4px solid transparent;
  color: var(--cgd-teal);
  padding: 0.6rem 0.75rem 0.5rem;
  cursor: pointer;
}
.tab[aria-selected="true"] { border-bottom-color: var(--cgd-gold); color: var(--cgd-teal-black); }
.tab:hover { background: var(--cgd-cream); }

[role="tabpanel"][hidden] { display: none; }

/* ---- Headings and text ---- */
h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--cgd-teal);
  margin: 1.75rem 0 0.35rem;
}
h2:first-child { margin-top: 0; }
.lede { max-width: 60rem; margin-bottom: 1rem; }
.note {
  font-size: 0.85rem;
  font-weight: 300;
  font-style: italic;
  color: var(--cgd-teal-black);
  margin-top: 0.5rem;
  max-width: 60rem;
}

/* ---- Controls ---- */
.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: var(--gap) 1.5rem;
  padding: 1rem;
  background: var(--cgd-cream);
  border-radius: 4px;
}
.control label, .control legend {
  display: block;
  font-weight: 600;
  color: var(--cgd-teal);
  font-size: 0.95rem;
}
.control .value {
  font-weight: 400;
  color: var(--cgd-teal-black);
  font-variant-numeric: tabular-nums;
}
.control .hint { font-size: 0.8rem; color: var(--cgd-dark-gray); }
.control fieldset { border: none; }

input[type="range"] {
  width: 100%;
  accent-color: var(--cgd-light-teal);
  margin: 0.4rem 0 0.1rem;
}
.check { display: flex; align-items: center; gap: 0.4rem; font-weight: 400 !important; color: var(--cgd-dark-gray) !important; font-size: 0.9rem !important; }
.check input { accent-color: var(--cgd-light-teal); width: 1rem; height: 1rem; }

select {
  font: inherit;
  width: 100%;
  margin-top: 0.3rem;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--cgd-teal-gray);
  border-radius: 3px;
  background: #fff;
  color: var(--cgd-teal-black);
}

.btn {
  font: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--cgd-teal);
  border-radius: 3px;
  background: #fff;
  color: var(--cgd-teal);
  cursor: pointer;
}
.btn:hover { background: var(--cgd-teal); color: #fff; }
.btn:disabled { opacity: 0.5; cursor: default; }
.btn:disabled:hover { background: #fff; color: var(--cgd-teal); }

.row-actions { display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap; margin-top: 0.75rem; }

.segmented { display: inline-flex; border: 1px solid var(--cgd-teal); border-radius: 3px; overflow: hidden; }
.segmented button {
  font: inherit; font-size: 0.85rem; font-weight: 600;
  padding: 0.3rem 0.7rem; border: none; background: #fff; color: var(--cgd-teal); cursor: pointer;
}
.segmented button + button { border-left: 1px solid var(--cgd-teal); }
.segmented button[aria-pressed="true"] { background: var(--cgd-teal); color: #fff; }

.toolbar { display: flex; flex-wrap: wrap; gap: 0.75rem 1.5rem; align-items: center; margin: 0.5rem 0 0.75rem; font-size: 0.9rem; }
.toolbar .label { font-weight: 600; color: var(--cgd-teal); margin-right: 0.4rem; }

/* ---- Summary stats ---- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: var(--gap);
  margin: 1.25rem 0 0.5rem;
}
.stat { border-top: 3px solid var(--cgd-light-teal); padding-top: 0.4rem; }
.stat .num { font-size: 1.5rem; font-weight: 700; color: var(--cgd-teal-black); font-variant-numeric: tabular-nums; }
.stat .lbl { font-size: 0.85rem; }

/* ---- Charts ---- */
.axis-label { font-size: 0.9rem; font-weight: 500; color: var(--cgd-teal); margin-bottom: 0.25rem; }
.chart-box { position: relative; width: 100%; height: clamp(280px, 55vw, 440px); }
.chart-box.short { height: clamp(240px, 40vw, 320px); }
.chart-box.tall { height: clamp(420px, 70vw, 560px); }

.two-col { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
@media (min-width: 860px) { .two-col { grid-template-columns: 1fr 1fr; } }

.legend-inline { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; font-size: 0.85rem; margin-bottom: 0.25rem; }
.legend-inline span::before {
  content: ''; display: inline-block; width: 0.75rem; height: 0.75rem;
  border-radius: 50%; margin-right: 0.35rem; vertical-align: -1px; background: var(--c);
}

/* ---- Tables ---- */
.table-scroll { overflow-x: auto; max-height: 32rem; overflow-y: auto; border: 1px solid var(--cgd-light-gray); }
table { border-collapse: collapse; width: 100%; font-size: 0.875rem; font-variant-numeric: tabular-nums; }
th, td { padding: 0.4rem 0.6rem; text-align: right; white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
thead th {
  position: sticky; top: 0; background: #fff; z-index: 1;
  color: var(--cgd-teal); font-weight: 600; border-bottom: 2px solid var(--cgd-teal);
}
thead th button {
  font: inherit; color: inherit; background: none; border: none; cursor: pointer; padding: 0;
  text-align: inherit;
}
thead th button::after { content: ' \2195'; color: var(--cgd-teal-gray); }
thead th[aria-sort="ascending"] button::after { content: ' \2191'; color: var(--cgd-teal); }
thead th[aria-sort="descending"] button::after { content: ' \2193'; color: var(--cgd-teal); }
tbody tr:nth-child(even) { background: var(--cgd-cream); }
td.pos { color: var(--cgd-light-teal); }
td.neg { color: #A34240; }
td.muted { color: var(--cgd-teal-gray); }

.corr-table { max-width: 40rem; margin-top: 0.75rem; }
.corr-table td, .corr-table th { border-bottom: 1px solid var(--cgd-light-gray); }

/* ---- Tab 2 result ---- */
.result {
  border-left: 4px solid var(--cgd-gold);
  background: var(--cgd-light-gold);
  padding: 0.9rem 1rem;
  margin: 1.25rem 0;
  max-width: 60rem;
}
.result p + p { margin-top: 0.5rem; }
.result strong { color: var(--cgd-teal-black); }
.warn { font-size: 0.9rem; color: var(--cgd-teal-black); margin-top: 0.5rem; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* ---- Standalone view (opened directly, not embedded) ---- */
.standalone-banner { display: none; }
.standalone body { background: #fff; }
.standalone .wrap { padding: 0.75rem 16px 1.5rem; max-width: 1200px; margin: 0 auto; }
.standalone .standalone-banner {
  display: block;
  font-size: 0.85rem;
  color: var(--cgd-teal-black);
  background: var(--cgd-light-gold);
  border-left: 4px solid var(--cgd-gold);
  padding: 0.5rem 0.75rem;
  margin-bottom: 1rem;
}

/* Let the short correlation table wrap at narrow widths instead of overflowing */
.corr-table th, .corr-table td { white-space: normal; padding: 0.4rem 0.4rem; }