:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --panel: #ffffff;
  --panel-soft: #f8fafc;
  --text: #16202a;
  --muted: #667482;
  --line: #d9e0e7;
  --accent: #1f6feb;
  --accent-2: #0f766e;
  --warn: #b45309;
  --danger: #b42318;
  --success: #157f4f;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    linear-gradient(180deg, #eef2f6 0%, #f7f8fa 100%);
}

h1,
h2,
h3,
p,
dl {
  margin: 0;
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  min-height: 100vh;
  padding: 18px;
}

.topbar {
  display: flex;
  gap: 16px;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 14px;
}

.eyebrow {
  font-size: 12px;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

.topbar h1 {
  font-size: 26px;
  line-height: 1.1;
}

.topbar-actions {
  display: flex;
  gap: 10px;
  align-items: end;
  flex-wrap: wrap;
}

.search {
  display: grid;
  gap: 6px;
  min-width: min(420px, 72vw);
}

.search span,
.filters span {
  font-size: 12px;
  color: var(--muted);
}

input,
select,
.button {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--text);
}

input,
select {
  padding: 10px 12px;
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(31, 111, 235, 0.12);
}

.button {
  padding: 10px 14px;
  cursor: pointer;
}

.button-secondary {
  background: var(--panel-soft);
}

.kpi-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.kpi {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
}

.kpi .label {
  font-size: 12px;
  color: var(--muted);
}

.kpi .value {
  margin-top: 8px;
  font-size: 26px;
  font-weight: 700;
}

.workspace {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr) 300px;
  gap: 14px;
  align-items: start;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.sidebar,
.inspector {
  padding: 14px;
  position: sticky;
  top: 14px;
}

.content {
  display: grid;
  gap: 12px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
  margin-bottom: 12px;
}

.panel-header h2 {
  font-size: 18px;
}

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

.filters {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}

.filters label {
  display: grid;
  gap: 6px;
}

.node-list,
.stack,
.review-list,
.timeline,
.relation-grid {
  display: grid;
  gap: 10px;
}

.node-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: var(--panel-soft);
  cursor: pointer;
}

.node-item.active {
  border-color: var(--accent);
  background: rgba(31, 111, 235, 0.06);
}

.node-item .title {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-weight: 700;
}

.node-item .sub {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.chip,
.source-chip,
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  border: 1px solid var(--line);
  background: #fff;
}

.badge-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: end;
}

.tab {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius);
  padding: 10px 14px;
  cursor: pointer;
}

.tab.active {
  background: #eaf2ff;
  border-color: #b7cffc;
  color: #1147a7;
}

.view {
  padding: 14px;
}

.hidden {
  display: none;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.detail-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: var(--panel-soft);
}

.detail-card h3,
.inspector-block h3 {
  font-size: 14px;
  margin-bottom: 10px;
}

.meta-list {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 14px;
}

.meta-list dt {
  color: var(--muted);
}

.meta-list dd {
  margin: 0;
}

.meta-list.compact {
  grid-template-columns: max-content 1fr;
  font-size: 13px;
}

.metric,
.tech,
.tool,
.review-item,
.validation-item,
.relation-item,
.timeline-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 10px 12px;
}

.metric .row,
.tech .row,
.tool .row,
.validation-item .row,
.relation-item .row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: start;
}

.metric .title,
.tech .title,
.tool .title,
.review-item .title {
  font-weight: 700;
}

.metric .meta,
.tech .meta,
.tool .meta,
.review-item .meta,
.relation-item .meta,
.timeline-item .meta {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.confidence {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}

.timeline {
  position: relative;
  padding-left: 16px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--line);
}

.timeline-item {
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -20px;
  top: 16px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
}

.relation-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.evidence {
  margin: 0;
  border-left: 3px solid var(--accent);
  padding-left: 12px;
  color: var(--text);
  line-height: 1.6;
}

.inspector-block + .inspector-block {
  margin-top: 18px;
}

.status-accept {
  color: var(--success);
}

.status-review {
  color: var(--warn);
}

.status-reject {
  color: var(--danger);
}

@media (max-width: 1200px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .sidebar,
  .inspector {
    position: static;
  }

  .kpi-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 780px) {
  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .search {
    min-width: 0;
    width: 100%;
  }

  .kpi-strip,
  .detail-grid,
  .relation-grid {
    grid-template-columns: 1fr;
  }

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