:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-strong: #f0f3f5;
  --ink: #19212a;
  --muted: #66717f;
  --line: #d9e0e7;
  --blue: #235789;
  --green: #1f7a4d;
  --amber: #a66a00;
  --red: #a33a3a;
  --shadow: 0 18px 50px rgba(24, 33, 42, 0.08);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

button,
input {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  background: #17212b;
  color: #f7fafc;
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 34px;
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  background: #f2c14e;
  color: #17212b;
  border-radius: 8px;
  font-weight: 800;
}

.brand-name,
.brand-subtitle {
  margin: 0;
}

.brand-name {
  font-weight: 800;
  font-size: 1.05rem;
}

.brand-subtitle {
  color: #b9c3ce;
  font-size: 0.85rem;
}

.nav-list {
  display: grid;
  gap: 6px;
}

.nav-link {
  color: #dbe4ed;
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 8px;
}

.nav-link.active,
.nav-link:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

.workspace {
  padding: 22px;
  display: grid;
  gap: 18px;
  align-content: start;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.search-form {
  display: grid;
  grid-template-columns: minmax(220px, 520px) auto;
  gap: 8px;
  width: min(100%, 680px);
}

.search-form input {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  background: var(--surface);
  color: var(--ink);
}

.search-form button {
  border: 0;
  border-radius: 8px;
  padding: 12px 16px;
  background: var(--blue);
  color: #ffffff;
  cursor: pointer;
}

.sync-state {
  color: var(--green);
  font-weight: 700;
  white-space: nowrap;
}

.hero-strip {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 26px;
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--blue);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 0.76rem;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(1.8rem, 3vw, 3rem);
  line-height: 1.05;
}

h2 {
  font-size: 1rem;
}

.summary {
  color: var(--muted);
  line-height: 1.55;
  max-width: 760px;
  margin: 14px 0 0;
}

.dataset-warning {
  margin: 14px 0 0;
  color: var(--amber);
  font-weight: 800;
  line-height: 1.45;
}

.status-stack {
  display: flex;
  flex-wrap: wrap;
  align-content: start;
  justify-content: flex-end;
  gap: 8px;
  min-width: 180px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  border-radius: 8px;
  padding: 7px 10px;
  background: #e7f4ed;
  color: var(--green);
  font-weight: 800;
  font-size: 0.85rem;
}

.status-pill.muted {
  background: #edf2f7;
  color: #526070;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.content-grid.two-one {
  grid-template-columns: minmax(0, 1.3fr) minmax(260px, 0.7fr);
}

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

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

.panel-note {
  color: var(--muted);
  font-size: 0.86rem;
  white-space: nowrap;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.metric {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  min-height: 94px;
  display: grid;
  align-content: space-between;
}

.metric strong {
  font-size: 1.9rem;
}

.metric span {
  color: var(--muted);
  font-size: 0.86rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  border: 1px solid var(--line);
  background: var(--surface-strong);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--ink);
  font-weight: 700;
}

.empty-state {
  color: var(--muted);
  margin: 0;
}

.relationship-map {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.relation-node {
  min-height: 92px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fbfcfd;
}

.relation-node strong {
  display: block;
  font-size: 1.5rem;
}

.relation-node span {
  color: var(--muted);
  font-size: 0.84rem;
}

.trust-list {
  display: grid;
  gap: 10px;
}

.trust-list div,
.source-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fbfcfd;
}

.trust-list span,
.source-box span {
  display: block;
  color: var(--muted);
  font-size: 0.84rem;
}

.trust-list strong,
.source-box strong {
  display: block;
  margin-top: 4px;
}

.source-box a {
  color: var(--blue);
  overflow-wrap: anywhere;
}

.timeline-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 10px;
}

.timeline-list li {
  color: var(--muted);
}

.timeline-list strong {
  color: var(--ink);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
  }

  .nav-list {
    grid-auto-flow: column;
    overflow-x: auto;
  }

  .hero-strip,
  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .content-grid,
  .content-grid.two-one {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 560px) {
  .workspace {
    padding: 14px;
  }

  .sidebar {
    display: grid;
    gap: 14px;
  }

  .search-form {
    grid-template-columns: 1fr;
  }

  .metric-grid,
  .relationship-map {
    grid-template-columns: 1fr;
  }
}