:root {
  color-scheme: light;
  --surface-base: oklch(96% 0.009 155);
  --surface-panel: oklch(99% 0.006 155);
  --surface-subtle: oklch(93% 0.012 155);
  --surface-muted: oklch(89% 0.014 155);
  --text-strong: oklch(20% 0.018 165);
  --text-body: oklch(33% 0.016 165);
  --text-muted: oklch(51% 0.015 165);
  --line: oklch(82% 0.015 155);
  --accent: oklch(48% 0.12 154);
  --accent-strong: oklch(36% 0.1 154);
  --accent-soft: oklch(89% 0.045 154);
  --rust: oklch(53% 0.11 42);
  --violet: oklch(45% 0.09 302);
  --focus: oklch(54% 0.15 190);
  --danger: oklch(50% 0.12 24);
  --radius: 8px;
  --shadow: 0 16px 38px oklch(32% 0.02 155 / 12%);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--surface-base);
  color: var(--text-body);
}

body {
  margin: 0;
  min-height: 100vh;
}

button,
input,
select {
  font: inherit;
}

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

button {
  min-height: 40px;
  padding: 0 14px;
  cursor: pointer;
  font-weight: 650;
}

button:hover {
  border-color: var(--accent);
  color: var(--accent-strong);
}

button:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 3px solid oklch(76% 0.09 190);
  outline-offset: 2px;
}

.app-shell {
  width: min(1480px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 48px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 10px 0 18px;
  border-bottom: 1px solid var(--line);
}

.topbar-title {
  flex: 1 1 360px;
  min-width: 240px;
}

.topbar-side {
  display: grid;
  flex: 1 1 620px;
  justify-items: end;
  gap: 10px;
  min-width: 0;
}

.main-nav {
  width: 100%;
}

.main-nav-list,
.submenu {
  margin: 0;
  padding: 0;
  list-style: none;
}

.main-nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.main-nav-item {
  position: relative;
}

.main-nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-panel);
  color: var(--text-body);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
}

.main-nav-link:hover,
.main-nav-link:focus-visible {
  border-color: var(--accent);
  color: var(--accent-strong);
}

.main-nav-link[aria-current="page"] {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.submenu {
  position: absolute;
  right: 0;
  z-index: 20;
  display: none;
  min-width: 180px;
  margin-top: 8px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-panel);
  box-shadow: var(--shadow);
}

.main-nav-item:hover .submenu,
.main-nav-item:focus-within .submenu {
  display: grid;
  gap: 4px;
}

.submenu a {
  display: block;
  padding: 8px 10px;
  border-radius: 6px;
  color: var(--text-body);
  font-size: 0.86rem;
  font-weight: 650;
  text-decoration: none;
}

.submenu a:hover,
.submenu a:focus-visible {
  background: var(--surface-subtle);
  color: var(--accent-strong);
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  color: var(--text-strong);
  letter-spacing: 0;
}

h1 {
  font-size: 1.85rem;
  line-height: 1.12;
}

h2 {
  font-size: 1.05rem;
  line-height: 1.25;
}

.topbar-meta {
  max-width: 420px;
  color: var(--text-muted);
  font-size: 0.9rem;
  text-align: right;
}

.controls {
  position: sticky;
  top: 0;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  align-items: end;
  padding: 16px 0;
  background: var(--surface-base);
}

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

.controls span {
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.controls input,
.controls select {
  min-height: 40px;
  width: 100%;
  padding: 0 10px;
}

.wide-field {
  min-width: 0;
}

.status-bar {
  margin: 0 0 16px;
  padding: 12px 14px;
  border: 1px solid oklch(77% 0.07 42);
  border-radius: var(--radius);
  background: oklch(94% 0.04 42);
  color: oklch(34% 0.08 42);
  font-weight: 620;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(340px, 0.7fr);
  grid-template-areas:
    "summary summary"
    "trend ranking"
    "detail sources";
  gap: 16px;
}

.summary-band {
  grid-area: summary;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}

.summary-band.topic-summary {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

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

.kpi-card {
  display: grid;
  gap: 8px;
  min-height: 96px;
  padding: 16px;
}

.kpi-card span {
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 680;
}

.kpi-card strong {
  color: var(--text-strong);
  font-size: 1.55rem;
  line-height: 1;
}

.panel {
  padding: 16px;
  min-width: 0;
}

.trend-panel {
  grid-area: trend;
}

.ranking-panel {
  grid-area: ranking;
}

.detail-panel {
  grid-area: detail;
}

.sources-panel {
  grid-area: sources;
}

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

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

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 32px;
  padding: 0 8px 0 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-subtle);
  color: var(--text-body);
  font-size: 0.85rem;
  font-weight: 650;
}

.chip button {
  min-height: 24px;
  width: 24px;
  padding: 0;
  border-radius: 999px;
  background: var(--surface-panel);
}

canvas {
  display: block;
  width: 100%;
  height: min(360px, 42vh);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: oklch(98% 0.006 155);
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 520px;
}

th,
td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

th {
  position: sticky;
  top: 0;
  background: var(--surface-subtle);
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0;
}

td {
  color: var(--text-body);
  font-size: 0.9rem;
}

tr:last-child td {
  border-bottom: 0;
}

.number {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.detail-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 14px;
  margin: 0 0 16px;
}

.detail-list div {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.detail-list dt {
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 700;
}

.detail-list dd {
  margin: 4px 0 0;
  color: var(--text-strong);
  font-weight: 720;
}

.mini-table {
  display: grid;
  gap: 8px;
}

.mini-row,
.source-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.mini-row:last-child,
.source-item:last-child {
  border-bottom: 0;
}

.mini-row strong,
.source-item strong {
  color: var(--text-strong);
}

.mini-row span,
.source-item span {
  color: var(--text-muted);
  font-size: 0.82rem;
}

.source-list {
  display: grid;
  gap: 2px;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.75rem;
  font-weight: 760;
}

.empty {
  padding: 24px;
  color: var(--text-muted);
  text-align: center;
}

@media (max-width: 1120px) {
  .controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dashboard-grid {
    grid-template-columns: 1fr;
    grid-template-areas:
      "summary"
      "trend"
      "ranking"
      "detail"
      "sources";
  }

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

@media (max-width: 680px) {
  .app-shell {
    width: min(100% - 20px, 1480px);
    padding-top: 14px;
  }

  .topbar {
    display: grid;
  }

  .topbar-side {
    justify-items: start;
    min-width: 0;
  }

  .topbar-meta {
    text-align: left;
  }

  .main-nav-list {
    justify-content: flex-start;
  }

  .submenu {
    left: 0;
    right: auto;
  }

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

  .summary-band,
  .detail-list {
    grid-template-columns: 1fr;
  }

  .panel-heading {
    display: grid;
  }

  .chip-row {
    justify-content: flex-start;
  }
}