/* Smooth & Striated — findings site
   Heatmap-academic design system */

@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Source+Sans+3:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  /* Deep academic ground */
  --ink: #0b0a0e;
  --ink-elevated: #121018;
  --ink-soft: #1a1622;
  --ink-border: #2a2436;

  /* Text */
  --text: #e8e2d6;
  --text-muted: #a89f91;
  --text-faint: #6e665c;

  /* Heatmap palette — thermal / intensity field */
  --hm-orange: #f07a28;
  --hm-amber: #f5a623;
  --hm-yellow: #f5d76e;
  --hm-lime: #a8e063;
  --hm-green: #3dce7a;
  --hm-cyan: #2ec4c9;
  --hm-blue: #3b6fd9;
  --hm-indigo: #5b4fd6;
  --hm-magenta: #e048a8;
  --hm-hot: #ff3d8a;

  /* Composed gradients */
  --grad-heatmap: linear-gradient(
    125deg,
    var(--hm-orange) 0%,
    var(--hm-amber) 14%,
    var(--hm-yellow) 28%,
    var(--hm-lime) 42%,
    var(--hm-cyan) 56%,
    var(--hm-blue) 70%,
    var(--hm-indigo) 84%,
    var(--hm-magenta) 100%
  );
  --grad-heatmap-soft: linear-gradient(
    135deg,
    rgba(240, 122, 40, 0.55) 0%,
    rgba(245, 215, 110, 0.45) 22%,
    rgba(62, 206, 122, 0.4) 44%,
    rgba(46, 196, 201, 0.45) 62%,
    rgba(59, 111, 217, 0.5) 78%,
    rgba(224, 72, 168, 0.55) 100%
  );
  --grad-bleed: radial-gradient(
    ellipse 80% 60% at 20% 40%,
    rgba(240, 122, 40, 0.35) 0%,
    transparent 55%
  ),
  radial-gradient(
    ellipse 70% 50% at 75% 60%,
    rgba(59, 111, 217, 0.3) 0%,
    transparent 50%
  ),
  radial-gradient(
    ellipse 50% 40% at 55% 20%,
    rgba(224, 72, 168, 0.25) 0%,
    transparent 45%
  ),
  radial-gradient(
    ellipse 40% 35% at 40% 80%,
    rgba(62, 206, 122, 0.2) 0%,
    transparent 40%
  );

  --scrim: linear-gradient(
    180deg,
    rgba(11, 10, 14, 0.55) 0%,
    rgba(11, 10, 14, 0.82) 55%,
    rgba(11, 10, 14, 0.95) 100%
  );
  --scrim-side: linear-gradient(
    90deg,
    rgba(11, 10, 14, 0.92) 0%,
    rgba(11, 10, 14, 0.7) 45%,
    rgba(11, 10, 14, 0.35) 100%
  );

  --font-serif: 'EB Garamond', 'Georgia', 'Times New Roman', serif;
  --font-sans: 'Source Sans 3', 'Helvetica Neue', system-ui, sans-serif;

  --measure: 38rem;
  --measure-wide: 52rem;
  --page: 68rem;
  --radius: 2px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html {
  font-size: 18px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.65;
  font-feature-settings: 'kern', 'liga', 'onum';
  -webkit-font-smoothing: antialiased;
}

/* —— Layout —— */
.wrap {
  width: min(100% - 2.5rem, var(--page));
  margin-inline: auto;
}

.measure { max-width: var(--measure); }
.measure-wide { max-width: var(--measure-wide); }

/* —— Skip link —— */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink-elevated);
  color: var(--text);
  padding: 0.5rem 1rem;
  z-index: 100;
  font-family: var(--font-sans);
  font-size: 0.85rem;
}
.skip:focus { left: 0.5rem; top: 0.5rem; }

/* —— Header / Nav —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 10, 14, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  border-image: linear-gradient(
    90deg,
    transparent 0%,
    rgba(240, 122, 40, 0.35) 15%,
    rgba(62, 206, 122, 0.3) 40%,
    rgba(59, 111, 217, 0.3) 65%,
    rgba(224, 72, 168, 0.35) 85%,
    transparent 100%
  ) 1;
}

.site-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.85rem 0;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 50%;
  background: var(--grad-heatmap);
  box-shadow: 0 0 12px rgba(224, 72, 168, 0.35);
  flex-shrink: 0;
}

.brand span { opacity: 0.92; }

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.25rem 0;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--text);
  border-bottom-color: var(--hm-cyan);
  outline: none;
}

.nav a[aria-current="page"] {
  color: var(--text);
  border-bottom-color: var(--hm-magenta);
}

/* —— Heatmap rule —— */
.hm-rule {
  height: 2px;
  border: 0;
  margin: 2.5rem 0;
  background: var(--grad-heatmap);
  opacity: 0.7;
  border-radius: 1px;
}

.hm-rule--thin {
  height: 1px;
  opacity: 0.45;
  margin: 1.75rem 0;
}

/* —— Hero —— */
.hero {
  position: relative;
  overflow: hidden;
  padding: 4.5rem 0 3.5rem;
  isolation: isolate;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-bleed);
  z-index: -2;
  opacity: 0.9;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 90% 70% at 70% 30%, rgba(240, 122, 40, 0.12), transparent 50%),
    linear-gradient(180deg, transparent 40%, var(--ink) 100%);
  z-index: -1;
}

.hero--with-image {
  min-height: 28rem;
  display: flex;
  align-items: flex-end;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -3;
  background-size: cover;
  background-position: center;
  filter: saturate(1.05) brightness(0.55);
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--scrim-side),
    linear-gradient(180deg, rgba(11,10,14,0.25) 0%, rgba(11,10,14,0.88) 100%);
}

.hero-kicker {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--hm-amber);
  margin: 0 0 1rem;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5.5vw, 3.75rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
  color: var(--text);
  max-width: 14ch;
}

.hero-lede {
  font-size: 1.2rem;
  line-height: 1.5;
  color: var(--text-muted);
  max-width: 36rem;
  margin: 0 0 2rem;
  font-style: italic;
}

.hero-meta {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--text-faint);
  letter-spacing: 0.03em;
}

/* —— Buttons / links —— */
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.65rem 1.15rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.btn--primary {
  background: var(--grad-heatmap);
  color: #0b0a0e;
  border: none;
}

.btn--primary:hover,
.btn--primary:focus-visible {
  filter: brightness(1.08);
  outline: 2px solid var(--hm-cyan);
  outline-offset: 2px;
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--ink-border);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--hm-cyan);
  color: var(--text);
  outline: none;
}

/* —— Main content —— */
main {
  padding-bottom: 4rem;
}

.page-header {
  padding: 3rem 0 1.5rem;
}

.page-header h1 {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.75rem;
  letter-spacing: -0.01em;
}

.page-header .deck {
  font-size: 1.15rem;
  color: var(--text-muted);
  font-style: italic;
  max-width: 36rem;
  margin: 0;
  line-height: 1.5;
}

.prose {
  max-width: var(--measure);
}

.prose p {
  margin: 0 0 1.15rem;
}

.prose h2 {
  font-size: 1.45rem;
  font-weight: 600;
  margin: 2.5rem 0 0.85rem;
  letter-spacing: -0.01em;
  color: var(--text);
}

.prose h3 {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--hm-amber);
  margin: 2rem 0 0.6rem;
}

.prose ul, .prose ol {
  margin: 0 0 1.15rem;
  padding-left: 1.35rem;
}

.prose li { margin-bottom: 0.4rem; }

.prose a {
  color: var(--hm-cyan);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

.prose a:hover { color: var(--hm-yellow); }

.prose blockquote {
  margin: 1.75rem 0;
  padding: 1rem 0 1rem 1.25rem;
  border-left: 3px solid transparent;
  border-image: linear-gradient(
    180deg,
    var(--hm-orange),
    var(--hm-cyan),
    var(--hm-magenta)
  ) 1;
  font-style: italic;
  color: var(--text);
  font-size: 1.1rem;
  line-height: 1.55;
}

.prose blockquote cite {
  display: block;
  margin-top: 0.6rem;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-style: normal;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-faint);
}

/* —— Callouts —— */
.flag {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  line-height: 1.5;
  padding: 1rem 1.15rem;
  margin: 1.5rem 0;
  background: var(--ink-elevated);
  border: 1px solid var(--ink-border);
  border-radius: var(--radius);
  border-left: 3px solid var(--hm-amber);
  color: var(--text-muted);
}

.flag strong {
  color: var(--hm-amber);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.flag--spec {
  border-left-color: var(--hm-magenta);
}

.flag--spec strong { color: var(--hm-magenta); }

.flag--ok {
  border-left-color: var(--hm-cyan);
}

.flag--ok strong { color: var(--hm-cyan); }

/* —— Cards / grid —— */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
}

.card {
  background: var(--ink-elevated);
  border: 1px solid var(--ink-border);
  border-radius: var(--radius);
  padding: 1.35rem 1.4rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.25s var(--ease);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--grad-heatmap);
  opacity: 0.65;
}

.card:hover { border-color: rgba(46, 196, 201, 0.35); }

.card h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0.35rem 0 0.5rem;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text);
}

.card .meta {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--hm-cyan);
  margin: 0;
}

.card p {
  margin: 0;
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.card a {
  text-decoration: none;
  color: inherit;
}

.card a:focus-visible {
  outline: 2px solid var(--hm-cyan);
  outline-offset: 4px;
}

/* —— Report slots —— */
.report-list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  max-width: var(--measure-wide);
}

.report-item {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 1rem 1.5rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--ink-border);
  align-items: start;
}

.report-item:first-child {
  border-top: 1px solid var(--ink-border);
}

.report-date {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--hm-amber);
  padding-top: 0.2rem;
}

.report-body h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0 0 0.4rem;
  color: var(--text);
}

.report-body p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.98rem;
}

.badge {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius);
  margin-bottom: 0.45rem;
}

.badge--pending {
  background: rgba(245, 166, 35, 0.12);
  color: var(--hm-amber);
  border: 1px solid rgba(245, 166, 35, 0.3);
}

.badge--live {
  background: rgba(62, 206, 122, 0.12);
  color: var(--hm-green);
  border: 1px solid rgba(62, 206, 122, 0.3);
}

/* —— Pedagogy figures —— */
.figure-block {
  margin: 2.5rem 0;
  max-width: var(--measure-wide);
}

.figure-frame {
  position: relative;
  background: var(--ink-elevated);
  border: 1px solid var(--ink-border);
  border-radius: var(--radius);
  overflow: hidden;
  padding: 0.75rem;
}

.figure-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 1px;
}

.figure-caption {
  margin-top: 0.85rem;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--text-muted);
}

.figure-caption strong {
  color: var(--text);
  font-weight: 600;
}

.figure-label {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--hm-magenta);
  margin: 0 0 0.5rem;
}

/* —— Def pair —— */
.def-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin: 2rem 0;
  max-width: var(--measure-wide);
}

@media (max-width: 680px) {
  .def-pair { grid-template-columns: 1fr; }
  .report-item { grid-template-columns: 1fr; gap: 0.35rem; }
}

.def-card {
  background: var(--ink-elevated);
  border: 1px solid var(--ink-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}

.def-card--smooth::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--hm-orange), var(--hm-yellow), var(--hm-cyan), var(--hm-magenta));
}

.def-card--striated::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: repeating-linear-gradient(
    90deg,
    var(--hm-blue) 0 8px,
    var(--ink-border) 8px 12px
  );
}

.def-card h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  margin: 0.25rem 0 0.75rem;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text);
}

.def-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--text-muted);
  font-size: 0.98rem;
}

.def-card li { margin-bottom: 0.45rem; }

/* —— Sources list —— */
.source-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: var(--measure-wide);
}

.source-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--ink-border);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem 1rem;
  align-items: start;
}

.source-list li:first-child { border-top: 1px solid var(--ink-border); }

.source-ico {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--grad-heatmap-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--text);
  flex-shrink: 0;
}

.source-list h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text);
}

.source-list p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* —— Footer —— */
.site-footer {
  border-top: 1px solid var(--ink-border);
  padding: 2rem 0 2.5rem;
  margin-top: 2rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--text-faint);
}

.site-footer .inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
}

.site-footer a {
  color: var(--text-muted);
  text-decoration: none;
}

.site-footer a:hover { color: var(--hm-cyan); }

.footer-mark {
  display: inline-block;
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: var(--grad-heatmap);
  margin-right: 0.4rem;
  vertical-align: middle;
}

/* —— Utility —— */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

.section-label {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--hm-cyan);
  margin: 0 0 1rem;
}

@media (max-width: 540px) {
  html { font-size: 17px; }
  .wrap { width: min(100% - 1.5rem, var(--page)); }
  .hero { padding: 3rem 0 2.5rem; }
  .nav { gap: 0.15rem 0.85rem; font-size: 0.72rem; }
}

/* —— Compact page hero (definitions & inner pages) —— */
.hero--compact {
  min-height: 14rem;
  padding: 3rem 0 2.25rem;
  display: flex;
  align-items: flex-end;
}
.hero--compact .hero h1,
.hero--compact h1 {
  max-width: 22ch;
  font-size: clamp(1.9rem, 4vw, 2.75rem);
}
.hero--compact .hero-lede {
  margin-bottom: 0.75rem;
  font-size: 1.05rem;
  max-width: 40rem;
}

/* Report article body on reports page */
.report-article {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--ink-border);
  max-width: var(--measure-wide);
}
.report-article .report-meta {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--text-faint);
  margin: 0 0 1.25rem;
}
.report-article table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
  font-size: 0.92rem;
}
.report-article th,
.report-article td {
  text-align: left;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--ink-border);
  vertical-align: top;
}
.report-article th {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--hm-amber);
  background: var(--ink-elevated);
}
.report-article td:first-child {
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  width: 6.5rem;
}
.working-box {
  background: var(--ink-elevated);
  border: 1px solid var(--ink-border);
  border-left: 3px solid var(--hm-cyan);
  border-radius: var(--radius);
  padding: 1.25rem 1.4rem;
  margin: 1.5rem 0;
}
.working-box h2 {
  margin-top: 0;
}