:root {
  --navy: #004370;
  --blue: #009FDA;
  --mid: #1F5C99;
  --green: #008980;
  --orange: #E65100;
  --grid: #D8DEE5;
  --muted: #5A6672;
  --accent-purple: #4455A0;
  --accent-teal: #0091B4;
  --accent-green: #008980;
  --bg: #F4F6F8;
  --card: #FFFFFF;
  --text: #1B2431;
  --radius: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", Calibri, Arial, sans-serif;
}

.wrap {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px 64px;
}

/* ── Header ─────────────────────────────────────────────────────────── */

header.top {
  background: var(--navy);
  padding: 22px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.top-inner {
  max-width: 1240px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.brand img.wb-logo { height: 34px; }
.brand img.lsms-logo { height: 34px; }

.brand-title {
  color: #fff;
}

.brand-title h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.brand-title p {
  margin: 2px 0 0;
  font-size: 12.5px;
  color: #B7C4D6;
}

.meta {
  color: #B7C4D6;
  font-size: 12px;
  text-align: right;
  line-height: 1.5;
}

.meta a { color: #8FD1F0; }

.accent-bar {
  height: 5px;
  display: flex;
}
.accent-bar span { flex: 1; }
.accent-bar .c1 { background: var(--blue); }
.accent-bar .c2 { background: var(--accent-purple); }
.accent-bar .c3 { background: var(--accent-teal); }
.accent-bar .c4 { background: var(--mid); }
.accent-bar .c5 { background: var(--accent-green); }

/* ── Hero stats ─────────────────────────────────────────────────────── */

.hero {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 28px 0;
}

.stat-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: 0 1px 3px rgba(0,20,50,0.08);
  border-top: 4px solid var(--mid);
}

.stat-card .label {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--muted);
}

.stat-card .value {
  font-size: 42px;
  font-weight: 800;
  color: var(--navy);
  margin: 4px 0 2px;
  line-height: 1.1;
}

.stat-card .sub {
  font-size: 13px;
  color: var(--muted);
}

.stat-card.flow { border-top-color: var(--blue); }
.stat-card.share { border-top-color: var(--orange); }

/* ── Section shells ─────────────────────────────────────────────────── */

.panel {
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px 26px;
  margin-bottom: 20px;
  box-shadow: 0 1px 3px rgba(0,20,50,0.08);
}

.panel h2 {
  margin: 0 0 4px;
  font-size: 18px;
  color: var(--navy);
}

.panel .panel-sub {
  margin: 0 0 18px;
  font-size: 13px;
  color: var(--muted);
}

/* ── Collapsible "additional info" block ──────────────────────────────── */

details.more-info {
  padding: 0;
}

details.more-info summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 26px;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy);
  display: flex;
  align-items: center;
  gap: 10px;
}

details.more-info summary::-webkit-details-marker { display: none; }

details.more-info summary::before {
  content: "▸";
  font-size: 12px;
  color: var(--mid);
  transition: transform 0.15s ease;
}

details.more-info[open] summary::before {
  transform: rotate(90deg);
}

details.more-info summary:hover {
  color: var(--mid);
}

.more-info-body {
  padding: 0 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.subpanel h2 {
  margin: 0 0 4px;
  font-size: 16px;
  color: var(--navy);
}

.subpanel .panel-sub {
  margin: 0 0 18px;
  font-size: 13px;
  color: var(--muted);
}

.chart-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 18px;
  margin-bottom: 24px;
}

.chart-grid .panel { margin-bottom: 0; }

@media (max-width: 880px) {
  .hero { grid-template-columns: 1fr; }
  .chart-grid { grid-template-columns: 1fr; }
}

/* ── Charts (hand-rolled SVG) ───────────────────────────────────────── */

.chart svg { width: 100%; height: auto; display: block; overflow: visible; }
.chart .bar { fill: var(--mid); cursor: pointer; transition: fill 0.15s ease; }
.chart .bar:hover { fill: var(--blue); }
.chart .bar.current { fill: var(--blue); opacity: 0.55; }
.chart .bar.current:hover { fill: var(--blue); opacity: 0.8; }
.chart .bar-label { font-size: 11px; fill: var(--navy); font-weight: 700; }
.chart .axis-label { font-size: 11px; fill: var(--muted); }
.chart .gridline { stroke: var(--grid); stroke-width: 1; }
.chart .line-any { stroke: var(--orange); fill: none; stroke-width: 2.6; }
.chart .line-first { stroke: var(--mid); fill: none; stroke-width: 2.6; }
.chart .line-current { opacity: 0.4; stroke-dasharray: 4 3; }
.chart .dot-any { fill: var(--orange); cursor: pointer; transition: r 0.15s ease; }
.chart .dot-first { fill: var(--mid); cursor: pointer; transition: r 0.15s ease; }
.chart .dot-current { opacity: 0.4; }
.chart .dot-hit { fill: transparent; cursor: pointer; }
.legend { display: flex; gap: 18px; font-size: 12.5px; color: var(--muted); margin-bottom: 8px; }
.legend .swatch { display: inline-block; width: 11px; height: 11px; border-radius: 3px; margin-right: 6px; vertical-align: -1px; }

/* pie wedges: hover pulls the slice outward (transform set per-wedge in JS, since the
   direction depends on each wedge's own angle) and brightens it slightly */
.chart .pie-slice { cursor: pointer; stroke: #fff; stroke-width: 1.5; transition: transform 0.18s ease, filter 0.15s ease; }
.chart .pie-slice:hover { filter: brightness(1.12); }

.chart .topic-bar { cursor: pointer; transition: filter 0.15s ease; }
.chart .topic-bar:hover { filter: brightness(1.12); }

/* shared floating tooltip, positioned via JS on hover */
.chart-tooltip {
  position: fixed;
  z-index: 1000;
  pointer-events: none;
  background: var(--navy);
  color: #fff;
  font-size: 12.5px;
  line-height: 1.5;
  padding: 8px 11px;
  border-radius: 8px;
  box-shadow: 0 4px 14px rgba(0,20,50,0.25);
  opacity: 0;
  transform: translateY(2px);
  transition: opacity 0.1s ease, transform 0.1s ease;
  max-width: 240px;
}
.chart-tooltip.visible { opacity: 1; transform: translateY(0); }
.chart-tooltip .tt-title { font-weight: 700; margin-bottom: 2px; }
.chart-tooltip .tt-row { color: #C9DCEE; }

/* ── Methodology / gate cards ──────────────────────────────────────── */

.gate-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 6px;
}

.gate-card {
  background: #F7F9FB;
  border-radius: 10px;
  padding: 14px 16px;
  border: 1px solid var(--grid);
}

.gate-card .n {
  font-size: 24px;
  font-weight: 800;
  color: var(--navy);
}

.gate-card .pct {
  font-size: 13px;
  color: var(--mid);
  font-weight: 700;
  margin-left: 6px;
}

.gate-card .desc {
  font-size: 12.5px;
  color: var(--muted);
  margin-top: 2px;
}

@media (max-width: 720px) {
  .gate-grid { grid-template-columns: 1fr; }
}

/* ── Papers table ──────────────────────────────────────────────────── */

.table-controls {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.table-controls input[type="search"],
.table-controls select {
  border: 1px solid var(--grid);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  color: var(--text);
  background: #fff;
}

.table-controls input[type="search"] { flex: 1; min-width: 220px; }

.table-count {
  font-size: 12.5px;
  color: var(--muted);
  margin-bottom: 10px;
}

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--grid);
  border-radius: 10px;
}

table.papers {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

table.papers th, table.papers td {
  padding: 9px 12px;
  text-align: left;
  border-bottom: 1px solid var(--grid);
  vertical-align: top;
}

table.papers th {
  background: #EEF2F6;
  color: var(--navy);
  font-weight: 700;
  position: sticky;
  top: 0;
  white-space: nowrap;
}

table.papers td.title-cell { max-width: 420px; }
table.papers td.title-cell .evidence-star { color: #E8A33D; cursor: help; }
table.papers td.title-cell a { color: var(--mid); text-decoration: none; font-weight: 600; }
table.papers td.title-cell a:hover { text-decoration: underline; }
table.papers td.title-cell .venue { display: block; color: var(--muted); font-size: 11.5px; margin-top: 2px; }
table.papers td.topics-cell { max-width: 260px; white-space: normal; }

.badge {
  display: inline-block;
  font-size: 10.5px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 999px;
  white-space: nowrap;
  margin: 0 3px 3px 0;
}
.badge.yes { background: #E3F1E1; color: var(--green); }
.badge.no { background: #EEF1F4; color: var(--muted); }
.badge.topic { background: #E8EFF9; color: var(--mid); font-weight: 600; }

.pager {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  font-size: 13px;
  color: var(--muted);
}

.pager button {
  border: 1px solid var(--grid);
  background: #fff;
  border-radius: 7px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 13px;
  color: var(--navy);
}

.pager button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

footer.site {
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  padding: 26px 0 10px;
}

footer.site a { color: var(--mid); }