/* ===========================================================================
   Theme — Report 2026-09, "Scaling Low-Cost Adaptation Technologies"

   Aesthetic: scorecard. The report scores technologies against five
   attributes, so the surface is built from tiles, chips and scored rows:
   a near-white ground, deep violet structure, a teal counter-colour, and a
   wide technical mono carrying every label. Space Grotesk for display and
   Rubik for text are both firsts in the series.

   Loaded after report.css: tokens first (which also re-colours every chart,
   since report.js reads the palette from them), then the rules that assume
   the default surface.
   =========================================================================== */

:root {
  --bg: #fbfbfa;
  --bg-card: #ffffff;
  --bg-accent: #f3f0f8;
  --bg-dark: #2e1246;
  --bg-dark-2: #220c35;

  --text: #171519;
  --text-secondary: #3f3a45;
  --text-muted: #6e6875;
  --text-inverse: #f4f1f8;

  --primary: #5b21a6;
  --primary-light: #7c3aed;
  --accent: #0e7490;
  --accent-light: #22a0bd;

  --border: #dedbe3;
  --border-light: #ebe8f0;
  --rule: #bdb7c7;

  --chart-blue: #5b21a6;
  --chart-blue-light: #a78bfa;
  --chart-gold: #a16207;
  --chart-red: #be123c;
  --chart-teal: #0e7490;
  --chart-gray: #8b8594;
  --chart-orange: #c2410c;
  --chart-purple: #7c3aed;

  --serif: "Space Grotesk", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --sans: Rubik, -apple-system, BlinkMacSystemFont, "system-ui", sans-serif;
  --mono: "Martian Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --max-width: 960px;
}

body { font-size: 1.02rem; line-height: 1.7; }

/* Martian Mono is very wide; every label using it needs tighter tracking
   than the other themes give theirs, or short labels wrap. */
.masthead .overline,
.nav-inner a,
.chart-container .chart-label,
.table-caption,
.abstract h2,
.endmatter h2,
.callout .callout-title,
.exec-card .exec-num,
.ref-list .ref-org { letter-spacing: 0.02em; }

::selection { background: rgba(91, 33, 166, 0.16); }
:where(a, button, [tabindex]):focus-visible { outline-color: var(--primary); }

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

.progress__bar { background: var(--primary); }
.skip-link { background: var(--primary); }

/* --- masthead: a catalogue entry ------------------------------------------ */

.masthead {
  background: var(--bg);
  color: var(--text);
  border-top: 10px solid var(--primary);
  border-bottom: 1px solid var(--border);
  padding: 2.4rem var(--gutter) 0;
}
/* The overline is a filled chip rather than a line of small caps. */
.masthead .overline {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 0.42rem 0.7rem;
  font-size: 0.6rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}
.masthead h1 {
  font-family: var(--serif);
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.08;
  max-width: 21ch;
  font-size: clamp(1.9rem, 5vw, 2.75rem);
}
.masthead .subtitle { color: var(--text-secondary); font-weight: 400; max-width: 58ch; }
.masthead .strapline {
  border-left: 4px solid var(--accent);
  color: var(--text-secondary);
  font-family: var(--sans);
  font-style: normal;
  font-size: 1rem;
}
/* Metadata as a tile row, each cell capped by a violet rule. */
.masthead .meta-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(136px, 1fr));
  gap: 0 1px;
  margin-top: 2.2rem;
  padding-top: 0;
  border-top: 0;
  background: var(--border-light);
  color: var(--text-secondary);
  font-family: var(--mono);
  font-size: 0.7rem;
}
.masthead .meta-row div {
  background: var(--bg);
  border-top: 3px solid var(--primary);
  padding: 0.8rem 0.9rem 1.1rem 0;
}
.masthead .meta-row strong {
  color: var(--accent);
  font-family: var(--sans);
  font-size: 0.61rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  margin-bottom: 0.3rem;
}

/* --- sticky nav ------------------------------------------------------------ */

.sticky-nav {
  background: rgba(251, 251, 250, 0.96);
  border-bottom: 2px solid var(--primary);
}
.nav-inner a {
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 0.66rem;
}
.nav-inner a:hover { color: var(--primary); }
.nav-inner a.is-active { color: var(--primary); border-bottom-color: var(--accent); }

/* --- section headings: a dotted rule beneath ------------------------------ */

section > h2 {
  font-family: var(--serif);
  color: var(--primary);
  font-weight: 700;
  letter-spacing: -0.03em;
  border-bottom: 3px dotted var(--primary);
  padding-bottom: 0.6rem;
}
section > .section-dek {
  font-style: normal;
  color: var(--text-muted);
  font-size: 0.99rem;
  max-width: 66ch;
}
section > h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.16rem;
  letter-spacing: -0.02em;
  color: var(--text);
  margin: 2.4rem 0 0.7rem;
}
section > h4 { color: var(--accent); font-family: var(--mono); font-size: 0.74rem; }

.section-rule { border-top: 1px solid var(--rule); margin: 3.2rem 0 3.4rem; }

/* --- abstract -------------------------------------------------------------- */

.abstract {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 5px solid var(--primary);
}
.abstract h2 { color: var(--accent); }

/* --- statistics: score tiles ---------------------------------------------- */

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 1px solid var(--border);
  border-top: 4px solid var(--accent);
  padding: 1.15rem 1.25rem 1.1rem;
}
.stat-card .stat-value {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.9rem;
  letter-spacing: -0.04em;
  color: var(--primary);
}
.stat-card .stat-label { color: var(--text-secondary); font-size: 0.79rem; }

/* --- executive cards ------------------------------------------------------- */

.exec-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-top: 4px solid var(--primary);
  padding: 1.4rem;
}
.exec-card .exec-num {
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 500;
  color: var(--accent);
  line-height: 1;
}
.exec-card .exec-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.13rem;
  letter-spacing: -0.025em;
  color: var(--primary);
  margin: 0.8rem 0 0.5rem;
}

/* --- charts ---------------------------------------------------------------- */

.chart-container { background: var(--bg-card); border: 1px solid var(--border); padding: 1.25rem 1.35rem; }
.chart-container .chart-label {
  color: var(--primary);
  font-weight: 500;
  font-size: 0.62rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--border-light);
}
.chart-container .chart-caption {
  font-style: normal;
  border-top: 1px solid var(--border-light);
  color: var(--text-muted);
}
.schematic-wrap { background: var(--bg-card); }

/* --- pull quote: a violet tile -------------------------------------------- */

.pull-quote {
  background: var(--bg-accent);
  border: 0;
  border-top: 5px solid var(--primary);
  padding: 1.7rem 1.8rem;
  margin: 2.8rem 0;
  font-family: var(--serif);
  font-style: normal;
  font-weight: 600;
  font-size: clamp(1.2rem, 2.8vw, 1.55rem);
  line-height: 1.25;
  letter-spacing: -0.03em;
  color: var(--primary);
  max-width: 42ch;
}
.pull-quote .attribution {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.02em;
  color: var(--accent);
  margin-top: 1rem;
  font-weight: 400;
}

/* --- callouts -------------------------------------------------------------- */

.callout {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 5px solid var(--accent);
  padding: 1.3rem 1.45rem;
}
.callout .callout-title { color: var(--accent); font-weight: 500; font-size: 0.6rem; }
.callout strong { color: var(--primary); }
.callout--warn { border-left-color: var(--chart-red); }
.callout--warn .callout-title { color: var(--chart-red); }

/* --- tables ---------------------------------------------------------------- */

.data-table thead { background: var(--primary); color: #fff; }
.data-table thead th { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.02em; }
.data-table tbody tr:nth-child(even) { background: var(--bg-accent); }
.data-table tbody tr:hover { background: rgba(14, 116, 144, 0.08); }
.data-table tbody th { font-family: var(--serif); font-weight: 600; letter-spacing: -0.02em; }
.table-caption { color: var(--accent); font-weight: 500; font-size: 0.62rem; }

.matrix thead th { background: var(--primary); color: #fff; font-size: 0.58rem; }
.matrix tbody th { background: var(--bg-card); font-family: var(--serif); font-weight: 600; }
/* The scale grades a score from absent to strong. */
.matrix .lv0 { background: #f0eef3; color: var(--text-muted); }
.matrix .lv1 { background: #d8cfe8; color: var(--text); }
.matrix .lv2 { background: #9169c4; }
.matrix .lv3 { background: #5b21a6; }

/* --- references and end matter -------------------------------------------- */

.ref-list .ref-org { color: var(--accent); font-size: 0.6rem; }
.endmatter h2 { color: var(--primary); border-bottom-color: var(--rule); }
.endmatter .kw {
  background: var(--bg-accent);
  border-color: var(--border-light);
  font-family: var(--mono);
  font-size: 0.64rem;
}
.endmatter dt { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.02em; }

/* --- footer ---------------------------------------------------------------- */

.report-footer { border-top: 6px solid var(--accent); }
.footer-inner h3 { color: #fff; font-family: var(--serif); font-weight: 700; letter-spacing: -0.03em; }
.cite-box { border-left-color: var(--accent-light); }

/* --- responsive ------------------------------------------------------------ */

@media (max-width: 760px) {
  .masthead .meta-row div { padding-right: 0.6rem; }
  .nav-inner a { font-size: 0.62rem; }
}

/* --- print ----------------------------------------------------------------- */

@media print {
  .masthead { border-top: 4px solid #333; }
  .masthead .overline { background: #333 !important; }
  .pull-quote { background: #f4f4f4 !important; border-top-color: #666; color: #000 !important; }
}