:root {
  --bg: #f5f7f8;
  --surface: #ffffff;
  --surface-2: #eef3f4;
  --ink: #1c2427;
  --muted: #607076;
  --line: #d9e1e4;
  --red: #d6223a;
  --green: #2d7d5f;
  --gold: #b57912;
  --cyan: #227c91;
  --shadow: 0 10px 30px rgba(29, 45, 53, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button, input, select { font: inherit; }
button, select, input { min-height: 44px; }
button { cursor: pointer; }
a { color: var(--cyan); }
h1, h2, h3, h4, p { margin: 0; }
h1 { font-size: 22px; line-height: 1.2; letter-spacing: 0; }
h2, h3 { font-size: 16px; line-height: 1.3; letter-spacing: 0; }
h4 { font-size: 15px; line-height: 1.3; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  padding: 18px clamp(16px, 3vw, 32px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand-head { min-width: 0; }
.topbar p { margin-top: 4px; color: var(--muted); font-size: 13px; overflow-wrap: anywhere; }

.account-tabs {
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(110px, 1fr));
  gap: 4px;
  padding: 4px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.tab {
  border: 0;
  border-radius: 6px;
  color: var(--muted);
  background: transparent;
}

.tab.active {
  color: var(--ink);
  background: var(--surface);
  box-shadow: 0 2px 8px rgba(29, 45, 53, 0.08);
}

.section-nav {
  position: sticky;
  top: 76px;
  z-index: 19;
  display: flex;
  gap: 8px;
  max-width: 1440px;
  margin: 0 auto;
  padding: 10px clamp(16px, 3vw, 32px);
  overflow-x: auto;
  background: rgba(245, 247, 248, 0.94);
  border-bottom: 1px solid var(--line);
  scrollbar-width: thin;
}

.section-nav a {
  flex: 0 0 auto;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--muted);
  background: var(--surface);
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
}

.dashboard-shell {
  display: grid;
  grid-template-columns: minmax(250px, 300px) minmax(0, 1fr);
  gap: 20px;
  width: min(100%, 1440px);
  margin: 0 auto;
  padding: 20px clamp(16px, 3vw, 32px) 36px;
}

.sidebar { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.content { display: flex; flex-direction: column; gap: 22px; min-width: 0; }
.section-block { scroll-margin-top: 132px; min-width: 0; }

.panel, .metric, .evidence-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.panel { padding: 18px; min-width: 0; }
.panel.compact { padding: 16px; }

summary {
  min-height: 44px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  font-weight: 800;
  list-style: none;
  cursor: pointer;
}
summary::-webkit-details-marker { display: none; }
summary strong { color: var(--muted); font-size: 12px; font-weight: 700; }

.filter-body, .action-body { display: grid; gap: 14px; padding-top: 12px; }
fieldset { margin: 0; padding: 12px; border: 1px solid var(--line); border-radius: 8px; min-width: 0; }
legend { padding: 0 5px; color: var(--ink); font-size: 12px; font-weight: 800; }
fieldset p { color: var(--muted); font-size: 13px; }
.field { display: flex; flex-direction: column; gap: 6px; margin-top: 12px; min-width: 0; }
.field:first-child { margin-top: 0; }
.field span { color: var(--muted); font-size: 12px; }
.field input, .field select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 10px;
  color: var(--ink);
  background: var(--surface);
}
.field-grid.two-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.filter-actions { display: flex; gap: 8px; }
.secondary-button, .pagination-controls button {
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 0 12px;
  color: var(--ink);
  background: var(--surface-2);
  font-weight: 700;
}

.section-heading { margin-bottom: 12px; }
.section-heading span { display: block; margin-bottom: 4px; color: var(--cyan); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.section-heading h2 { font-size: 18px; }

.panel-head { display: flex; justify-content: space-between; gap: 16px; align-items: baseline; margin-bottom: 14px; }
.panel-head span { color: var(--muted); font-size: 12px; text-align: right; }

.metrics { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; }
.metric { padding: 16px; min-height: 104px; }
.metric.priority { border-color: rgba(34, 124, 145, 0.34); }
.metric span { display: block; color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.metric strong { display: block; font-size: 22px; line-height: 1.15; letter-spacing: 0; overflow-wrap: anywhere; }
.metric small { display: block; margin-top: 8px; color: var(--muted); font-size: 11px; line-height: 1.3; }

.grid.two, .topic-sentiment-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.chart-panel { overflow: hidden; }
canvas { width: 100%; max-width: 100%; display: block; touch-action: manipulation; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.legend-item {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 10px;
  color: var(--muted);
  background: var(--surface);
  font-size: 12px;
}
.legend-item span { width: 10px; height: 10px; border-radius: 999px; background: var(--legend-color); }
.legend-item strong { color: var(--ink); font-weight: 800; }
.legend-item:not(.active) { opacity: 0.48; text-decoration: line-through; }
.chart-tooltip {
  position: fixed;
  z-index: 50;
  display: none;
  max-width: 220px;
  padding: 8px 10px;
  border-radius: 7px;
  color: var(--surface);
  background: rgba(28, 36, 39, 0.94);
  font-size: 12px;
  pointer-events: none;
}
.chart-tooltip.visible { display: block; }

.evidence-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.evidence-card { padding: 14px; }
.evidence-card span { color: var(--muted); font-size: 12px; }
.evidence-card strong { display: block; margin-top: 7px; font-size: 17px; overflow-wrap: anywhere; }

.status-list { display: grid; gap: 10px; margin-top: 14px; }
.status-item { display: grid; grid-template-columns: minmax(72px, auto) minmax(0, 1fr); gap: 10px; font-size: 13px; }
.status-item strong { color: var(--muted); font-weight: 600; overflow-wrap: anywhere; }
.status-item.ok strong { color: var(--green); }
.status-item.warn strong { color: var(--gold); }

.inline-field { margin: 0 0 12px; }
.topic-list { display: grid; gap: 12px; max-height: 460px; overflow: auto; padding-right: 4px; }
.topic-item { border-top: 1px solid var(--line); padding-top: 12px; }
.topic-item:first-child { border-top: 0; padding-top: 0; }
.topic-terms { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; }
.term { padding: 4px 7px; border-radius: 6px; background: var(--surface-2); color: var(--cyan); font-size: 12px; }
.example { display: -webkit-box; color: var(--muted); font-size: 13px; line-height: 1.45; overflow: hidden; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }

.lda-selection { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.lda-score-card { padding: 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface-2); }
.lda-score-card span, .sentiment-card span { display: block; color: var(--muted); font-size: 12px; }
.lda-score-card strong, .sentiment-card strong { display: block; margin-top: 4px; font-size: 18px; }
.coherence-list { grid-column: 1 / -1; display: grid; gap: 6px; }
.coherence-row { display: grid; grid-template-columns: minmax(86px, 120px) 1fr; align-items: center; gap: 10px; color: var(--muted); font-size: 12px; }
.coherence-row::before, .coherence-row::after { content: ''; display: block; height: 7px; grid-column: 2; grid-row: 1; border-radius: 999px; }
.coherence-row::before { background: var(--line); }
.coherence-row::after { width: var(--bar-width, 0%); background: var(--cyan); }
.coherence-row.selected::after { background: var(--green); }
.coherence-row strong { grid-column: 2; grid-row: 1; justify-self: end; z-index: 1; padding-left: 6px; background: var(--surface); color: var(--ink); }
.coherence-row.selected span, .coherence-row.selected strong { color: var(--green); font-weight: 800; }

.topic-button { display: block; width: 100%; text-align: left; color: inherit; border: 1px solid transparent; border-radius: 8px; background: transparent; cursor: pointer; }
.topic-button:hover, .topic-button:focus-visible { border-color: var(--line); background: #fbfcfc; outline: none; }
.topic-button.active { border-color: rgba(34, 124, 145, 0.45); background: #eef7f9; }
.topic-title { display: block; font-weight: 800; margin-bottom: 8px; }
.topic-detail { margin-top: 14px; border-top: 1px solid var(--line); padding-top: 14px; }
.topic-detail-inner, .topic-posts { display: grid; gap: 12px; }
.compact-head { margin-bottom: 0; }
.detail-terms { margin: 0; }
.topic-posts { max-height: 260px; overflow: auto; padding-right: 4px; }
.topic-post { padding: 10px; border: 1px solid var(--line); border-radius: 8px; background: #fbfcfc; }
.topic-post div { display: flex; justify-content: space-between; gap: 10px; color: var(--muted); font-size: 12px; margin-bottom: 6px; }
.topic-post a { color: var(--cyan); font-weight: 800; text-decoration: none; }
.topic-post p { margin: 0; font-size: 13px; line-height: 1.45; color: var(--ink); overflow-wrap: anywhere; }

.sentiment-summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 14px; }
.sentiment-card { padding: 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface-2); }

.post-head { align-items: center; }
.post-head > div:first-child { min-width: 0; }
.post-head h3 { margin-bottom: 4px; }
.pagination-controls { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 12px; }
.pagination-controls button:disabled { opacity: 0.48; cursor: not-allowed; }
.post-table-wrap { width: 100%; overflow-x: auto; }
.post-table { width: 100%; min-width: 780px; border-collapse: collapse; font-size: 13px; }
.post-table th, .post-table td { padding: 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.post-table th { color: var(--muted); font-size: 12px; }
.post-table td:nth-child(2) { max-width: 520px; line-height: 1.45; }
.post-cards { display: none; gap: 12px; }
.post-card { padding: 14px; border: 1px solid var(--line); border-radius: 8px; background: #fbfcfc; }
.post-badges, .metric-badges { display: flex; flex-wrap: wrap; gap: 7px; }
.badge { display: inline-flex; align-items: center; min-height: 26px; padding: 3px 8px; border-radius: 999px; color: var(--muted); background: var(--surface-2); font-size: 12px; font-weight: 700; overflow-wrap: anywhere; }
.badge.brand { color: var(--ink); }
.badge.viral { color: var(--surface); background: var(--red); }
.badge.engagement { color: var(--ink); border: 1px solid var(--line); background: var(--surface); }
.badge.sentiment-positive { color: var(--green); }
.badge.sentiment-negative { color: var(--red); }
.post-text { display: -webkit-box; margin: 12px 0 8px; font-size: 14px; line-height: 1.5; white-space: pre-wrap; overflow: hidden; overflow-wrap: anywhere; -webkit-line-clamp: 4; -webkit-box-orient: vertical; }
.post-text.expanded { display: block; }
.text-toggle { min-height: 36px; border: 0; padding: 0; color: var(--cyan); background: transparent; font-weight: 800; }
.post-link { display: inline-flex; align-items: center; min-height: 44px; margin-top: 8px; font-weight: 800; text-decoration: none; }

.empty { color: var(--muted); background: var(--surface-2); border: 1px dashed var(--line); border-radius: 8px; padding: 14px; font-size: 13px; line-height: 1.5; }
.skeleton { height: 180px; border-radius: 8px; background: linear-gradient(90deg, var(--surface-2), #fff, var(--surface-2)); background-size: 220% 100%; animation: pulse 1.2s linear infinite; }
@keyframes pulse { to { background-position: -220% 0; } }

@media (max-width: 1200px) {
  .metrics { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .evidence-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1024px) {
  .topbar { position: static; }
  .section-nav { top: 0; }
  .dashboard-shell { grid-template-columns: 1fr; }
  .sidebar { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; }
  .filter-panel { grid-column: 1 / -1; }
  .grid.two, .topic-sentiment-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 639px) {
  body { padding-bottom: 64px; }
  .topbar { flex-direction: column; align-items: stretch; padding: 16px; }
  .account-tabs { grid-template-columns: repeat(2, 1fr); width: 100%; }
  .section-nav { position: fixed; top: auto; right: 0; bottom: 0; left: 0; z-index: 30; padding: 8px; background: rgba(255, 255, 255, 0.96); }
  .section-nav a { min-height: 44px; }
  .dashboard-shell { padding: 14px; }
  .sidebar, .metrics, .grid.two, .topic-sentiment-grid, .evidence-grid { grid-template-columns: 1fr; }
  .panel, .panel.compact { padding: 14px; }
  .filter-panel:not([open]) { padding-bottom: 8px; }
  .field-grid.two-fields, .lda-selection, .sentiment-summary { grid-template-columns: 1fr; }
  .metric strong { font-size: 20px; }
  .post-head { align-items: flex-start; flex-direction: column; }
  .pagination-controls { width: 100%; justify-content: space-between; }
  .pagination-controls button { flex: 1; }
  .post-table-wrap { display: none; }
  .post-cards { display: grid; }
  .topic-list { max-height: none; }
  .chart-legend { max-height: 104px; overflow: auto; padding-bottom: 2px; }
}

@media (max-width: 390px) {
  h1 { font-size: 20px; }
  .dashboard-shell { padding: 12px; }
  .panel, .panel.compact, .metric { padding: 12px; }
  .coherence-row { grid-template-columns: 82px 1fr; }
  .legend-item { width: 100%; justify-content: space-between; border-radius: 7px; }
}

.analytics-card-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.analytics-card {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  min-width: 0;
}

.analytics-card h3 {
  margin-bottom: 10px;
  font-size: 14px;
}

.analytics-card dl {
  display: grid;
  gap: 8px;
  margin: 0;
}

.analytics-card dl div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--surface-2);
  padding-bottom: 6px;
}

.analytics-card dt,
.analytics-card dd {
  margin: 0;
  font-size: 12px;
}

.analytics-card dt { color: var(--muted); }
.analytics-card dd { font-weight: 800; text-align: right; overflow-wrap: anywhere; }

.analytics-grid { margin-top: 14px; }
.responsive-table { overflow-x: auto; }
.responsive-table table { width: 100%; min-width: 680px; border-collapse: collapse; font-size: 12px; }
.responsive-table th, .responsive-table td { padding: 9px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.responsive-table th { color: var(--muted); }
.mini-summary { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.mini-summary span { padding: 5px 8px; border-radius: 999px; color: var(--muted); background: var(--surface-2); font-size: 12px; font-weight: 800; }
.post-table.wide { min-width: 1500px; }
.post-table.wide td:nth-child(3) { max-width: 420px; }

@media (max-width: 1200px) {
  .analytics-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 639px) {
  .analytics-card-grid { grid-template-columns: 1fr; }
  .responsive-table table { min-width: 620px; }
}

.title-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.header-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; color: var(--muted); font-size: 12px; }
.header-meta span { min-width: 0; overflow-wrap: anywhere; }
.header-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 10px; }
.state-badge {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 800;
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--muted);
}
.state-badge.ready { color: var(--green); background: #edf7f1; border-color: rgba(45, 125, 95, 0.22); }
.state-badge.loading { color: var(--cyan); background: #eef7f9; border-color: rgba(34, 124, 145, 0.22); }
.state-badge.empty { color: var(--gold); background: #fbf5e9; border-color: rgba(181, 121, 18, 0.24); }
.state-badge.error { color: var(--red); background: #fff0f2; border-color: rgba(214, 34, 58, 0.24); }
.control-title {
  padding: 4px 2px 0;
}
.control-title span {
  display: block;
  color: var(--ink);
  font-size: 16px;
  font-weight: 900;
}
.control-title strong {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}
.section-nav a.active {
  color: var(--surface);
  background: var(--ink);
  border-color: var(--ink);
}
.chart-panel canvas { min-height: 230px; }
@media (max-width: 1024px) {
  .header-actions { justify-content: flex-start; }
  .metrics { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 639px) {
  .header-actions { flex-direction: column; align-items: stretch; }
  .metrics { grid-template-columns: 1fr; }
  .control-title { display: none; }
}

.chart-note {
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}
.chart-panel {
  border-color: rgba(96, 112, 118, 0.28);
}
.chart-panel .panel-head {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--surface-2);
}
.chart-panel canvas {
  margin-top: 8px;
}

@media (max-width: 639px) {
  .chart-panel canvas {
    min-height: 210px;
    max-height: 240px;
  }
  .chart-panel .panel-head {
    gap: 8px;
  }
  .chart-panel .panel-head span {
    max-width: 44%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}