:root {
  color-scheme: light;
  --ink: #24282b;
  --muted: #68706f;
  --line: #d9d1c4;
  --paper: #f7f4ef;
  --panel: #fffdf9;
  --accent: #33776b;
  --accent-soft: #dbe9e6;
  --warn: #8a5b25;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
}

.app-shell {
  min-height: 100vh;
}

.masthead {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 32px 20px;
  border-bottom: 1px solid var(--line);
  background: #fbfaf6;
}

.masthead h1 {
  margin: 0 0 6px;
  font-size: clamp(26px, 3vw, 42px);
  line-height: 1.05;
  letter-spacing: 0;
}

.masthead p {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.dataset-meta {
  display: grid;
  grid-template-columns: auto auto;
  gap: 4px 12px;
  align-items: center;
  min-width: 260px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  font-size: 12px;
}

.dataset-meta span {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0;
}

.dataset-meta strong {
  overflow-wrap: anywhere;
}

.controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(220px, 1fr));
  gap: 16px 18px;
  padding: 18px 32px 22px;
  border-bottom: 1px solid var(--line);
  background: #f1ece4;
}

.controls label {
  display: grid;
  gap: 7px;
  min-width: 0;
  font-size: 12px;
  font-weight: 700;
  color: #3f4748;
  text-transform: uppercase;
  letter-spacing: 0;
}

.controls input {
  width: 100%;
  height: 38px;
  padding: 0 12px;
  border: 1px solid #c8bfb2;
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
  font: inherit;
  text-transform: none;
}

.wide-control {
  grid-column: span 1;
}

.checklist {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 58px;
  color: #354143;
  font-size: 13px;
}

.checklist label {
  display: inline-flex;
  grid-template-columns: none;
  align-items: center;
  gap: 8px;
  text-transform: none;
  font-weight: 600;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(320px, 0.8fr);
  gap: 18px;
  padding: 22px 32px 32px;
}

.panel {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.panel h2 {
  margin: 0 0 14px;
  font-size: 18px;
  line-height: 1.2;
  letter-spacing: 0;
}

.table-panel {
  min-height: 620px;
}

.detail-panel {
  align-self: start;
  position: sticky;
  top: 12px;
}

.graph-panel {
  grid-column: 1 / -1;
}

.summary-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 36px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 13px;
}

.summary-bar strong {
  margin-right: 12px;
  color: var(--ink);
  font-size: 17px;
}

.detail-content h2 {
  margin: 0 0 10px;
  font-size: 22px;
  line-height: 1.15;
  letter-spacing: 0;
}

.detail-content h3 {
  margin: 18px 0 7px;
  color: #3f4748;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0;
}

.detail-content code {
  display: block;
  overflow-wrap: anywhere;
  padding: 9px 10px;
  border: 1px solid #e2d9cd;
  border-radius: 6px;
  background: #f8f1e7;
  color: #253033;
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: 12px;
  line-height: 1.45;
  white-space: normal;
}

.detail-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.detail-badges span {
  padding: 5px 8px;
  border: 1px solid #b8cec9;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #254f49;
  font-size: 12px;
  font-weight: 700;
}

.detail-content ul,
.group-block ul {
  margin: 0;
  padding-left: 18px;
}

.detail-content li,
.group-block li {
  margin: 6px 0;
}

.detail-content small {
  display: block;
  color: var(--muted);
}

.group-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 12px;
}

.group-block {
  padding: 12px;
  border: 1px solid #e2d9cd;
  border-radius: 8px;
  background: #fbf6ee;
}

.group-block h3 {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin: 0 0 8px;
  font-size: 14px;
  letter-spacing: 0;
}

.group-block h3 span {
  overflow-wrap: anywhere;
}

.group-block small {
  flex: 0 0 auto;
  color: var(--warn);
  font-size: 11px;
  font-weight: 700;
}

.empty-state {
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 980px) {
  .masthead,
  .controls,
  .workspace {
    padding-left: 18px;
    padding-right: 18px;
  }

  .masthead {
    align-items: stretch;
    flex-direction: column;
  }

  .controls {
    grid-template-columns: 1fr;
  }

  .workspace {
    grid-template-columns: 1fr;
  }

  .detail-panel {
    position: static;
  }
}