/* ============================================================
   InfoEdit project page
   ============================================================ */

:root {
  --page-max-width: 1100px;
  --wide-max-width: 1320px;
  --header-height: 60px;

  --primary: #2a2f6c;
  --primary-soft: #4a56c9;
  --accent: #b4530a;
  --accent-soft: #f0f4ff;

  --text: #24262b;
  --text-light: #555;
  --text-muted: #6c757d;

  --bg: #f8f9fa;
  --surface: #ffffff;
  --border: #e5e7eb;
  --border-strong: #dde1e6;

  --good: #148f5b;
  --bad: #d1453b;
}

* { box-sizing: border-box; }

html {
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background-color: var(--bg);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100%;
  color: var(--text);
  background-color: var(--bg);
  background-image: url("../images/bg-blobs.svg");
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  line-height: 1.6;
}

/* the sticky header already occupies its 60px in normal flow — no extra offset here */

img { max-width: 100%; height: auto; }

a { color: var(--primary-soft); }

/* ---------------- header ---------------- */

header.site-header {
  background-color: var(--surface);
  border-bottom: 1px solid #e0e0e0;
  height: var(--header-height);
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-container {
  max-width: var(--wide-max-width);
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  gap: 1rem;
}

.info-badge {
  display: inline-flex;
  align-items: center;
  padding: 7px 15px;
  background-color: #fff;
  border: 1px solid #ced4da;
  border-radius: 20px;
  gap: 8px;
  text-decoration: none;
  color: #212529;
  font-size: 0.95rem;
  white-space: nowrap;
  transition: background-color .3s ease, border-color .3s ease;
}
.info-badge:hover { background-color: #e9ecef; border-color: #e9ecef; }
.info-badge .badge-icon {
  width: 20px;
  height: 20px;
  border-radius: 5px;
  display: block;
}
.info-badge .badge-mark {
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.02em;
}

.main-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.15rem;
  flex-wrap: nowrap;
  justify-content: flex-end;
}
.main-nav a {
  text-decoration: none;
  color: #555;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0.5rem 0.55rem;
  display: flex;
  align-items: center;
  white-space: nowrap;
  transition: color .2s ease;
}
.main-nav a:hover,
.main-nav a.active { color: var(--primary); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  color: #444;
}

/* ---------------- generic section ---------------- */

.content-section {
  padding: 4rem 1rem;
  scroll-margin-top: calc(var(--header-height) + 1rem);
}
.content-section.alt-background { background-color: rgba(255, 255, 255, 0.72); }
.section-container { max-width: var(--page-max-width); margin: 0 auto; text-align: left; }
.section-container.wide { max-width: var(--wide-max-width); }

.section-eyebrow {
  display: block;
  text-align: center;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary-soft);
  margin-bottom: 0.6rem;
}
.section-title {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--primary);
  margin: 0 0 1.2rem;
  text-align: center;
  line-height: 1.15;
}
.section-description {
  font-size: 1.08rem;
  color: var(--text-light);
  line-height: 1.75;
  margin: 0 auto 2rem;
  max-width: 820px;
  text-align: center;
}
.subsection-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  margin: 3rem 0 0.75rem;
  text-align: center;
}
.body-text {
  font-size: 1.02rem;
  color: var(--text-light);
  line-height: 1.8;
  max-width: 820px;
  margin: 0 auto 1.2rem;
}

.figure { margin: 1.5rem auto 0; text-align: center; }
.figure img {
  border-radius: 10px;
  background: #fff;
}
.figure.framed img {
  border: 1px solid var(--border);
  box-shadow: 0 6px 22px rgba(0, 0, 0, .07);
}
.figure figcaption {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 0.85rem;
  line-height: 1.6;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  text-align: left;
}
.figure figcaption b { color: #444; }

/* ---------------- hero ---------------- */

.hero-section { padding: 0.6rem 1rem 1rem; text-align: center; }
.hero-section .section-container { text-align: center; }

.title-block { margin-bottom: 1.6rem; }
.title-with-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.1rem;
}
.title-logo {
  width: 74px;
  height: 74px;
  flex: none;
  border-radius: 23%;
  box-shadow: 0 8px 22px rgba(42, 47, 108, .22);
}
.main-title {
  font-size: 3.6rem;
  font-weight: 800;
  color: var(--primary);
  margin: 0;
  line-height: 1.05;
  letter-spacing: -0.02em;
}
.main-title .title-mark {
  background: linear-gradient(95deg, #2a2f6c 0%, #4a56c9 55%, #7c5cd6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.subtitle {
  font-size: 1.85rem;
  font-weight: 700;
  color: #333;
  margin: 0.7rem auto 0;
  line-height: 1.25;
  max-width: 950px;
}

.authors-list {
  margin: 1.6rem auto 0;
  line-height: 1.9;
  font-size: 1.06rem;
  color: var(--text-light);
  max-width: 950px;
}
.authors-list .author { white-space: nowrap; }
.authors-list .author-line { margin: 0 0 0.15rem; }
.authors-list .author-line:last-of-type { margin-bottom: 0; }
.affiliation-marker { color: var(--primary-soft); font-weight: 600; }
.affiliations {
  font-size: 0.97rem;
  color: var(--text-muted);
  margin: 0.55rem auto 0;
  max-width: 900px;
  line-height: 1.75;
}
.affiliations + .affiliations { margin-top: 0.1rem; }
.affiliations .affil { white-space: nowrap; }
.affiliations .affil + .affil { margin-left: 1.5rem; }
.equal-contribution {
  font-style: italic;
  color: var(--text-muted);
  font-size: 0.92rem;
  margin: 0.6rem 0 0;
}
.contact {
  font-size: 0.93rem;
  color: var(--text-muted);
  margin: 0.5rem 0 0;
}
.contact a { color: inherit; text-decoration: none; }

.resources-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
  margin: 1.6rem auto 0;
  max-width: 900px;
}
.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  background-color: #fff;
  color: #454b5c;
  padding: 0.5rem 1.05rem;
  border: 1px solid #dcdfe7;
  border-radius: 30px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color .2s ease, color .2s ease;
}
.cta-button:hover { border-color: #b6bdd4; color: var(--primary); }
.cta-button.primary { color: var(--primary); border-color: #c6cbe0; }
.cta-button.primary:hover { border-color: var(--primary-soft); }
.cta-button .button-icon { width: 15px; height: 15px; fill: currentColor; opacity: .6; }
.cta-button.soon { color: #9aa0af; border-color: #e6e8ee; cursor: default; }
.cta-button.soon:hover { color: #9aa0af; border-color: #e6e8ee; }
.cta-button .soon-tag {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: #aeb3c0;
}

/* ---------------- tl;dr ---------------- */

.tldr {
  max-width: 900px;
  margin: 2.5rem auto 0;
  background: #fff;
  border: 1px solid var(--border);
  border-left: 5px solid var(--primary-soft);
  border-radius: 12px;
  padding: 1.4rem 1.6rem;
  text-align: left;
  box-shadow: 0 4px 18px rgba(0, 0, 0, .05);
}
.tldr h3 {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary-soft);
}
.tldr p { margin: 0; color: var(--text-light); font-size: 1.02rem; line-height: 1.8; }

.term {
  font-weight: 600;
  color: var(--accent);
  font-style: italic;
}

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

.abstract-box {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem 2.2rem;
  max-width: 900px;
  margin: 0 auto;
  box-shadow: 0 4px 18px rgba(0, 0, 0, .05);
}
.abstract-box p { margin: 0 0 1rem; color: var(--text-light); font-size: 1.02rem; line-height: 1.85; }
.abstract-box p:last-child { margin-bottom: 0; }

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

.card-grid {
  display: grid;
  gap: 1.1rem;
  margin-top: 1.6rem;
}
.card-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.3rem 1.4rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, .04);
}
.card h4 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 0.55rem;
}
.card p { margin: 0; font-size: 0.95rem; color: var(--text-light); line-height: 1.7; }
.card .card-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--primary-soft);
  font-size: 0.82rem;
  font-weight: 700;
  flex: none;
}
.card .card-meta {
  display: block;
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px dashed var(--border);
  padding-top: 0.6rem;
}

/* ---------------- taxonomy explorer ---------------- */

.tax-explorer {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0, 0, 0, .06);
  margin-top: 1.8rem;
}
.tax-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 1rem 1.2rem;
  background: #f8fafc;
  border-bottom: 1px solid var(--border);
}
.tax-tab {
  border: 1px solid #d7dbe3;
  background: #fff;
  color: #4b5563;
  border-radius: 30px;
  padding: 0.42rem 0.95rem;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all .18s ease;
}
.tax-tab:hover { border-color: #b1b8e0; color: var(--primary); }
.tax-tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.tax-tab .tab-share { opacity: .7; font-weight: 500; margin-left: 4px; }

.tax-body {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 1.6rem;
  padding: 1.6rem;
  align-items: center;
}
.tax-figure {
  background: #f8f9fa;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
}
.tax-figure img { border-radius: 6px; }
.tax-info h4 { margin: 0 0 0.2rem; font-size: 1.5rem; color: var(--primary); }
.tax-info .tax-stats {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin: 0 0 0.9rem;
}
.tax-info p.tax-desc { margin: 0 0 0.9rem; color: var(--text-light); line-height: 1.75; font-size: 0.98rem; }
.tax-contract {
  background: var(--accent-soft);
  border-radius: 8px;
  padding: 0.75rem 0.9rem;
  font-size: 0.92rem;
  color: #3b4160;
  line-height: 1.65;
}
.tax-contract b { color: var(--primary); }

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

.table-wrapper {
  overflow-x: auto;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, .07);
  background: #fff;
  margin-top: 1.2rem;
  -webkit-overflow-scrolling: touch;
}
table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}
table.data-table th,
table.data-table td {
  padding: 0.5rem 0.55rem;
  text-align: center;
  border-bottom: 1px solid #eef0f3;
  white-space: nowrap;
}
table.data-table thead th {
  background: #fff;
  color: var(--primary);
  font-weight: 700;
  vertical-align: bottom;
}
table.data-table thead tr.group-row th { border-bottom: 1px solid var(--border-strong); }
table.data-table thead tr.metric-row th { font-size: 0.78rem; color: #5b6270; font-weight: 600; }
table.data-table th.model-col,
table.data-table td.model-col {
  text-align: left;
  padding-left: 1rem;
  background: #f8f9fa;
  font-weight: 600;
  min-width: 175px;
  color: #333;
}
table.data-table tr.group-header td {
  background: var(--accent-soft);
  font-style: italic;
  font-weight: 600;
  color: #4b5563;
  text-align: left;
  padding-left: 1rem;
  font-size: 0.82rem;
}
table.data-table tbody tr:hover td { background: #fcfcfe; }
table.data-table tbody tr:hover td.model-col { background: #f2f4f8; }
table.data-table td.sr { font-weight: 700; color: #2f3440; }
table.data-table td.avg { font-weight: 700; background: #f8fafc; }
table.data-table td.best { color: var(--primary-soft); }
table.data-table tr.highlight-row td { background: #f4f6ff; }
table.data-table tr.highlight-row td.model-col { background: #eaeeff; }
.col-sep { border-left: 1px solid var(--border-strong); }

/* ---- results tables (pixel- and code-level): quiet grid + single-hue heat ---- */
.table-wrapper.results-wrap {
  box-shadow: none;
  border: 1px solid var(--border);
  border-radius: 14px;
}
table.results-table {
  font-variant-numeric: tabular-nums;
  font-size: 0.88rem;
  border-collapse: separate;
  border-spacing: 0;
}
table.results-table th,
table.results-table td {
  border-bottom: 1px solid #f0f1f5;
  padding: 0.62rem 0.7rem;
}
table.results-table .col-sep { border-left: 1px solid #e9ebf2; }
table.results-table thead th {
  background: #fff;
  border-bottom: 1px solid #e3e6ee;
}
table.results-table thead tr.group-row th {
  color: #1f2433;
  font-size: 0.84rem;
  font-weight: 700;
  padding-top: 0.85rem;
}
table.results-table thead tr.metric-row th {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #8a90a0;
  padding-top: 0.2rem;
}
table.results-table.sr-only thead tr.metric-row { display: none; }
table.results-table.sr-only thead tr.group-row th { padding-bottom: 0.85rem; }
table.results-table th.model-col,
table.results-table td.model-col {
  position: sticky;
  left: 0;
  z-index: 1;
  background: #fff;
  min-width: 190px;
  text-align: left;
  padding-left: 1.1rem;
  font-weight: 600;
  color: #1f2433;
  box-shadow: inset -1px 0 0 #e9ebf2;
}
table.results-table thead th.model-col { color: #8a90a0; font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; }
/* every number is ink; the cell tint carries magnitude (0 = white, 100 = full tint) */
table.results-table tbody td:not(.model-col) {
  color: #3a4050;
  background: rgba(74, 86, 201, calc(var(--h, 0) * 0.30));
}
table.results-table tbody td.sr { font-weight: 400; color: #1f2433; }
table.results-table tbody td.best { color: #1f2433; font-weight: 400; }
table.results-table tbody td.best::after { content: none; }
table.results-table thead th:last-child { color: var(--primary); }
table.results-table tbody td.avg {
  font-weight: 400;
  color: #1f2433;
  min-width: 70px;
  background: rgba(74, 86, 201, calc(var(--h, 0) * 0.30));
}
table.results-table tr.group-header td {
  background: #fafbfd !important;
  color: #6b7285;
  font-style: normal;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.5rem 1.1rem;
  box-shadow: none;
}
table.results-table tbody tr:not(.group-header):hover td.model-col { background: #f6f7fb; }
table.data-table.results-table tbody tr:not(.group-header):hover td:not(.model-col) {
  background: rgba(74, 86, 201, calc(var(--h, 0) * 0.30 + 0.04));
}
table.data-table.results-table tbody tr:not(.group-header):hover td.avg {
  background: rgba(74, 86, 201, calc(var(--h, 0) * 0.30 + 0.04));
}
table.results-table tr.highlight-row td.model-col { background: #fff; box-shadow: inset 3px 0 0 var(--primary-soft), inset -1px 0 0 #e9ebf2; }
table.results-table tbody tr:last-child td { border-bottom: none; }
table.results-table thead th.sortable { cursor: pointer; user-select: none; transition: color .15s ease; }
table.results-table thead th.sortable:hover { color: var(--primary-soft); }
table.results-table thead th.sortable::after {
  content: "\2195";
  margin-left: 0.35rem;
  font-size: 0.75em;
  color: #b8bdca;
}
table.results-table thead th.sortable.sorted { color: var(--primary-soft); }
table.results-table thead th.sortable.sorted::after { content: "\2193"; color: var(--primary-soft); }
table.results-table thead th.sortable:focus-visible { outline: 2px solid var(--primary-soft); outline-offset: -2px; }
table.results-table tr.ref-row td { border-top: 1px dashed #cfd4e4; }
table.results-table tr.ref-row td.model-col { font-style: italic; color: #6b7285; font-weight: 500; }
table.results-table tr.ref-row td:not(.model-col) { color: #6b7285; background: #fff; }
.metric-switch {
  border: 1px solid #d6dbea;
  background: #fff;
  color: var(--primary);
  border-radius: 30px;
  padding: 0.42rem 1rem;
  font: inherit;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.metric-switch:hover { border-color: var(--primary-soft); background: #f4f6ff; }
.metric-switch[aria-pressed="true"] { background: var(--primary); border-color: var(--primary); color: #fff; }
.metric-switch:focus-visible { outline: 2px solid var(--primary-soft); outline-offset: 2px; }
.heat-legend {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.heat-legend .heat-bar {
  width: 88px;
  height: 8px;
  border-radius: 4px;
  border: 1px solid #e3e6ee;
  background: linear-gradient(90deg, #fff, rgba(74, 86, 201, 0.30));
}

.table-caption {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 0.8rem;
  line-height: 1.65;
}
.table-caption b { color: #444; }

.table-toolbar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 1.2rem;
}
.toggle-group {
  display: inline-flex;
  background: #eef0f4;
  border-radius: 30px;
  padding: 3px;
  gap: 3px;
}
.toggle-group button {
  border: none;
  background: transparent;
  border-radius: 30px;
  padding: 0.4rem 1rem;
  font-size: 0.87rem;
  font-weight: 600;
  font-family: inherit;
  color: #5b6270;
  cursor: pointer;
  transition: all .18s ease;
}
.toggle-group button.active { background: #fff; color: var(--primary); box-shadow: 0 1px 4px rgba(0, 0, 0, .1); }
.toolbar-hint { font-size: 0.85rem; color: var(--text-muted); }

.mono { font-family: "SF Mono", Menlo, Consolas, monospace; font-size: 0.85em; }
.check { color: var(--good); font-weight: 700; }
.cross { color: #b9bcc4; font-weight: 700; }

/* ---------------- findings ---------------- */

.findings-list { display: grid; gap: 1rem; margin-top: 1.8rem; }
.finding {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.1rem;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.3rem 1.5rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, .04);
  align-items: start;
}
.finding .finding-num {
  font-size: 1.35rem;
  font-weight: 800;
  color: #c9cede;
  line-height: 1.3;
  font-variant-numeric: tabular-nums;
}
.finding h4 { margin: 0 0 0.35rem; font-size: 1.08rem; color: var(--primary); line-height: 1.4; }
.finding p { margin: 0; color: var(--text-light); font-size: 0.98rem; line-height: 1.75; }
.finding .num-hl { color: var(--primary-soft); font-weight: 700; }

/* ---------------- case viewer ---------------- */

.case-viewer {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0, 0, 0, .07);
  margin-top: 1.8rem;
}
.case-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 1rem 1.3rem;
  background: #f8fafc;
  border-bottom: 1px solid var(--border);
}
.case-controls label { font-weight: 600; color: var(--primary); font-size: 0.9rem; }
.case-controls select {
  padding: 0.5rem 0.85rem;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: inherit;
  background: #fff;
  color: #4b5563;
  cursor: pointer;
}
.case-nav { margin-left: auto; display: flex; align-items: center; gap: 0.65rem; }
.case-nav button {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid #d1d5db;
  background: #fff;
  color: #4b5563;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .18s ease;
}
.case-nav button:hover { background: #f5f7ff; color: var(--primary); border-color: #b1b8e0; }
.case-counter { font-size: 0.9rem; font-weight: 600; color: #4b5563; min-width: 62px; text-align: center; }

.case-body { padding: 1.4rem; }
.case-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 0.9rem; }
.tag {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  padding: 0.3rem 0.7rem;
  border-radius: 20px;
  background: var(--accent-soft);
  color: var(--primary-soft);
}
.tag.error { background: #fdeceb; color: var(--bad); }
.tag.model { background: #eef2f6; color: #4b5563; }

.case-image {
  background: #f8f9fa;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.6rem;
  text-align: center;
}
.case-image img { border-radius: 6px; max-height: 760px; width: auto; }
.case-analysis {
  margin-top: 0.8rem;
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.75;
}

/* ---------------- details / accordion ---------------- */

details.disclosure {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-top: 1.2rem;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, .04);
}
details.disclosure > summary {
  cursor: pointer;
  padding: 1rem 1.3rem;
  font-weight: 600;
  color: var(--primary);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 1rem;
}
details.disclosure > summary::-webkit-details-marker { display: none; }
details.disclosure > summary::after {
  content: "＋";
  color: #9aa0b0;
  font-weight: 400;
  font-size: 1.05rem;
}
details.disclosure[open] > summary::after { content: "－"; }
details.disclosure[open] > summary { border-bottom: 1px solid var(--border); }
.disclosure-body { padding: 1.3rem; }
.disclosure-body > :first-child { margin-top: 0; }

.prompt-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.prompt-thumb {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: #fff;
  text-decoration: none;
  display: block;
}
.prompt-thumb img { display: block; }
.prompt-thumb span {
  display: block;
  padding: 0.6rem 0.8rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary);
  border-top: 1px solid var(--border);
  background: #f8fafc;
}

/* ---------------- pipeline ---------------- */

.pipeline { display: grid; gap: 0.85rem; margin-top: 1.6rem; }
.pipeline-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.05rem 1.3rem;
  align-items: start;
}
.pipeline-step .step-badge {
  background: var(--primary);
  color: #fff;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.35rem 0.6rem;
  white-space: nowrap;
  margin-top: 2px;
}
.pipeline-step h4 { margin: 0 0 0.25rem; font-size: 1rem; color: var(--primary); }
.pipeline-step p { margin: 0; font-size: 0.95rem; color: var(--text-light); line-height: 1.7; }

/* ---------------- citation ---------------- */

.citation-block {
  background-color: #f8f9fa;
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  padding: 1.4rem 1.6rem;
  max-width: 860px;
  margin: 0 auto;
  text-align: left;
  position: relative;
}
.citation-block pre {
  margin: 0;
  white-space: pre-wrap;
  word-wrap: break-word;
  font-family: "SF Mono", Menlo, Consolas, "Courier New", monospace;
  font-size: 0.86rem;
  line-height: 1.6;
  color: #333;
  padding-right: 90px;
}
.copy-button {
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  background: #fff;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  padding: 0.35rem 0.75rem;
  font-size: 0.82rem;
  font-weight: 600;
  font-family: inherit;
  color: #4b5563;
  cursor: pointer;
  transition: all .18s ease;
}
.copy-button:hover { background: #f5f7ff; color: var(--primary); border-color: #b1b8e0; }

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

.simple-footer {
  background-color: #fff;
  padding: 1.6rem 1rem;
  margin-top: 3rem;
  text-align: center;
  color: #333;
  font-size: 0.875rem;
  border-top: 1px solid #ccc;
}
.simple-footer p { margin: 0.25rem 0; color: var(--text-muted); }
.simple-footer a { color: var(--primary-soft); text-decoration: none; }
.simple-footer a:hover { text-decoration: underline; }

/* ---------------- reveal animation ---------------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

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

@media (max-width: 1024px) {
  .main-nav a { font-size: 0.85rem; padding: 0.4rem 0.4rem; }
  .main-title { font-size: 3rem; }
  .subtitle { font-size: 1.6rem; }
  .title-logo { width: 62px; height: 62px; }
}

@media (max-width: 860px) {
  .card-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .card-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
  .tax-body { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 20px rgba(0, 0, 0, .08);
    padding: 0.5rem 0;
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .main-nav a { padding: 0.7rem 1.2rem; }

  .content-section { padding: 3rem 1rem; }
  .main-title { font-size: 2.4rem; }
  .subtitle { font-size: 1.3rem; }
  .title-with-logo { gap: 0.7rem; }
  .title-logo { width: 46px; height: 46px; border-radius: 24%; }
  .section-title { font-size: 1.85rem; }
  .card-grid.cols-2, .card-grid.cols-3, .card-grid.cols-4 { grid-template-columns: 1fr; }
  .prompt-grid { grid-template-columns: 1fr; }
  .finding { grid-template-columns: 1fr; gap: 0.4rem; }
  .abstract-box { padding: 1.4rem 1.3rem; }
  .resources-buttons { gap: 0.45rem; }
  .cta-button { padding: 0.45rem 0.9rem; font-size: 0.87rem; }
  .case-nav { margin-left: 0; }
  .citation-block pre { padding-right: 0; padding-top: 2rem; }
}

a.card {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: transform .2s ease, box-shadow .2s ease;
}
a.card:hover { transform: translateY(-3px); box-shadow: 0 10px 26px rgba(0, 0, 0, .09); }

.author a { color: inherit; text-decoration: none; border-bottom: 1px solid rgba(74, 86, 201, 0.35); transition: color .15s ease, border-color .15s ease; }
.author a:hover { color: var(--primary-soft); border-bottom-color: var(--primary-soft); }