:root {
  /* Light theme — single accent, neutral surfaces, restrained tints */
  --ink: #0f1729;
  --ink-2: #2c3548;
  --muted: #6b7587;
  --muted-2: #9aa3b2;
  --line: #e6e9ef;
  --line-strong: #d6dae2;
  --paper: #f7f7f5;
  --surface: #ffffff;
  --surface-2: #fbfbf9;
  --surface-soft: #f1f2ee;
  --accent: #3a4cf0;
  --accent-ink: #2735c4;
  --accent-soft: #eef0ff;
  --positive: #1f9f7a;
  --warn: #c66a3a;
  --danger: #c8425a;
  --shadow-sm: 0 1px 2px rgba(15, 23, 41, 0.04), 0 1px 1px rgba(15, 23, 41, 0.03);
  --shadow-md: 0 6px 18px rgba(15, 23, 41, 0.06), 0 2px 4px rgba(15, 23, 41, 0.04);
  --shadow-lg: 0 14px 40px rgba(15, 23, 41, 0.08);
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  color-scheme: light;
  font-family:
    "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  font-feature-settings: "ss01", "cv11", "tnum" 1;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #ecedf2;
    --ink-2: #c3c8d6;
    --muted: #8d95a8;
    --muted-2: #5e6677;
    --line: #1f2433;
    --line-strong: #2a3142;
    --paper: #0b0e17;
    --surface: #131826;
    --surface-2: #161c2c;
    --surface-soft: #1a2032;
    --accent: #7a86ff;
    --accent-ink: #a3acff;
    --accent-soft: rgba(122, 134, 255, 0.12);
    --positive: #4cc9a4;
    --warn: #e08e60;
    --danger: #e87c8e;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.4), 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 18px 50px rgba(0, 0, 0, 0.55);
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button,
select,
input,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

a {
  color: var(--accent);
  text-decoration: none;
}

::selection {
  background: var(--accent-soft);
  color: var(--ink);
}

/* ---------- App shell ---------- */

.app-shell {
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  height: 100vh;
  padding: 24px 20px;
  border-right: 1px solid var(--line);
  background: var(--surface);
}

.brand-lockup {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px;
  align-items: center;
  margin-bottom: 32px;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 10px;
  background: var(--ink);
  color: var(--paper);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-lockup h1 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand-lockup .eyebrow {
  margin: 0 0 2px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h2 {
  margin-bottom: 0;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.2;
}

h3 {
  margin-bottom: 6px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.005em;
  line-height: 1.3;
}

.muted {
  color: var(--muted);
}

/* ---------- Sidebar nav ---------- */

.nav-stack {
  display: grid;
  gap: 2px;
}

.nav-item {
  display: flex;
  gap: 10px;
  align-items: center;
  min-height: 36px;
  padding: 0 10px;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition:
    background 140ms ease,
    color 140ms ease;
}

.nav-item span {
  color: var(--muted-2);
  font-size: 11px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.nav-item b {
  font-weight: 500;
}

.nav-item:hover {
  background: var(--surface-soft);
  color: var(--ink);
}

.nav-item.is-active {
  background: var(--accent-soft);
  color: var(--accent-ink);
}

.nav-item.is-active span {
  color: var(--accent);
}

.sidebar-footer {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 12px;
}

.sidebar-footer p {
  margin-bottom: 2px;
  font-size: 11px;
}

.sidebar-footer strong {
  font-weight: 600;
  font-size: 13px;
}

/* ---------- Workspace ---------- */

.workspace {
  display: grid;
  gap: 18px;
  width: min(1500px, 100%);
  padding: 24px 28px 48px;
}

.topbar,
.hero-band,
.panel-surface,
.metric-card,
.command-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.topbar {
  position: sticky;
  z-index: 10;
  top: 12px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  padding: 12px 16px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
}

.topbar .eyebrow {
  margin-bottom: 4px;
}

.topbar h2 {
  font-size: 16px;
  font-weight: 600;
}

.control-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
}

.control-row button:disabled {
  cursor: wait;
  opacity: 0.6;
}

.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 32px;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font-size: 13px;
  font-weight: 500;
  transition:
    border-color 140ms ease,
    background 140ms ease,
    transform 140ms ease;
}

.icon-button:hover {
  border-color: var(--ink-2);
  background: var(--surface-2);
}

.icon-button:active {
  transform: translateY(1px);
}

.icon-button svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--muted);
  transition: color 140ms ease;
}

.icon-button:hover svg {
  color: var(--ink);
}


.icon-button.primary {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.icon-button.primary:hover {
  background: var(--ink-2);
  border-color: var(--ink-2);
}

.icon-button.primary svg {
  color: color-mix(in srgb, var(--paper) 85%, transparent);
}

.icon-button.primary:hover svg {
  color: var(--paper);
}


.file-button {
  position: relative;
}

.file-button input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

/* ---------- Hero band ---------- */

.hero-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.7fr);
  gap: 28px;
  padding: 32px;
  align-items: center;
  background:
    radial-gradient(120% 80% at 0% 0%, var(--accent-soft), transparent 55%),
    var(--surface);
}

.hero-copy {
  max-width: 680px;
}

.hero-copy .eyebrow {
  margin-bottom: 12px;
}

.hero-copy h2 {
  max-width: 620px;
  margin-bottom: 12px;
  font-size: clamp(26px, 2.6vw, 36px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.hero-copy p:last-child {
  max-width: 580px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.hero-metrics .metric {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 6px;
  min-height: 96px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.hero-metrics .metric-row {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.hero-metrics .value {
  font-size: clamp(22px, 2.2vw, 28px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.hero-metrics .unit {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.005em;
}

.hero-metrics .trend {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  margin-left: auto;
  padding: 2px 7px 2px 5px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.hero-metrics .trend svg {
  width: 11px;
  height: 11px;
}

.hero-metrics .trend.up {
  color: var(--positive);
  background: color-mix(in srgb, var(--positive) 14%, transparent);
}

.hero-metrics .trend.down {
  color: var(--danger);
  background: color-mix(in srgb, var(--danger) 14%, transparent);
}

.hero-metrics .trend.flat {
  color: var(--muted);
  background: var(--surface-soft);
}

.hero-metrics p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---------- Metric grid ---------- */

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.metric-card {
  min-height: 120px;
  padding: 16px;
}

.metric-card .eyebrow {
  margin-bottom: 8px;
}

.metric-card h3 {
  margin-bottom: 4px;
  font-size: 18px;
  letter-spacing: -0.01em;
}

/* ---------- Command panel ---------- */

.command-panel {
  padding: 18px;
}

.command-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 12px;
  align-items: start;
}

.command-card {
  min-width: 0;
  min-height: 220px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.command-card.wide {
  align-self: stretch;
  background: var(--surface-2);
}

.next-move-panel {
  grid-column: 1 / -1;
}

.next-move-panel .next-move-cards {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* ---------- Charts ---------- */

.chart-svg {
  display: block;
  width: 100%;
  height: auto;
  min-height: 180px;
}

.chart-axis {
  stroke: var(--line-strong);
  stroke-width: 1;
}

.chart-area {
  fill: var(--accent-soft);
}

.chart-line {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.chart-dot {
  fill: var(--surface);
  stroke: var(--accent);
  stroke-width: 2;
}

.chart-bar {
  fill: var(--accent);
}

.chart-baseline {
  stroke: var(--muted-2);
  stroke-width: 1;
  stroke-dasharray: 4 4;
  opacity: 0.7;
}

.chart-baseline-label {
  fill: var(--muted);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.chart-label {
  fill: var(--muted);
  font-size: 11px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.chart-legend {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: baseline;
  margin-top: 6px;
}

.chart-legend strong {
  color: var(--ink);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.chart-legend span {
  color: var(--muted);
  font-size: 12px;
}

/* ---------- Cards inside command ---------- */

.executive-cards,
.next-move-cards {
  display: grid;
  gap: 8px;
}

.executive-card,
.next-card {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  transition: border-color 140ms ease;
}

.executive-card:hover,
.next-card:hover {
  border-color: var(--line-strong);
}

.executive-card strong {
  display: block;
  margin-bottom: 4px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.005em;
  line-height: 1.3;
}

.executive-card span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.next-card {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.next-card > span {
  display: grid;
  width: 22px;
  height: 22px;
  place-items: center;
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-size: 11px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.next-card p {
  margin-bottom: 0;
  color: var(--ink-2);
  font-size: 13px;
  line-height: 1.5;
}

/* ---------- Section surfaces ---------- */

.panel-surface {
  padding: 18px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-end;
  margin-bottom: 16px;
}

.section-header.compact {
  align-items: flex-start;
  margin-bottom: 14px;
}

.section-header h2 {
  font-size: 18px;
  font-weight: 600;
}

.section-header .eyebrow {
  margin-bottom: 4px;
}

/* ---------- Insight grid ---------- */

.analysis-grid,
.insight-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

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

.insight-card {
  min-height: 124px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  transition: border-color 140ms ease, transform 140ms ease;
}

.insight-card:hover {
  border-color: var(--line-strong);
}

.insight-card .eyebrow {
  margin-bottom: 10px;
}

.insight-card strong {
  display: block;
  margin: 4px 0 6px;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.insight-card span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

/* ---------- Bar list / rank list ---------- */

.bar-list,
.rank-list {
  display: grid;
  gap: 8px;
}

.bar-row {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr) 36px 110px;
  gap: 12px;
  align-items: center;
  min-height: 28px;
  color: var(--ink-2);
  font-size: 12px;
}

.bar-row > span,
.bar-row > strong {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.bar-row small {
  color: var(--muted);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.bar-track {
  height: 6px;
  overflow: hidden;
  border-radius: 99px;
  background: var(--surface-soft);
}

.bar-track i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
}

.rank-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: inherit;
  text-align: left;
  transition: border-color 140ms ease, background 140ms ease;
}

.rank-row:hover {
  border-color: var(--line-strong);
  background: var(--surface-2);
}

.rank-row b {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
  font-size: 13px;
  font-weight: 500;
}

.rank-row small {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 11px;
}

.rank-row > strong {
  color: var(--ink);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* ---------- Split layout ---------- */

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  gap: 14px;
  align-items: start;
}

select {
  min-height: 32px;
  padding: 0 10px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font-size: 13px;
  font-weight: 500;
  transition: border-color 140ms ease;
}

select:hover,
select:focus-visible {
  border-color: var(--ink-2);
  outline: none;
}

.post-list {
  display: grid;
  gap: 8px;
}

.filter-bar {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) repeat(3, minmax(110px, 0.45fr));
  gap: 8px;
  margin-bottom: 12px;
}

.filter-bar input,
.filter-bar select {
  min-height: 32px;
  width: 100%;
  padding: 0 10px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font-size: 13px;
  font-weight: 500;
}

.filter-bar input:focus-visible,
.filter-bar select:focus-visible {
  border-color: var(--accent);
  outline: 3px solid var(--accent-soft);
  outline-offset: 0;
}

.post-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: inherit;
  text-align: left;
  transition: border-color 140ms ease, background 140ms ease;
}

.post-row:hover {
  border-color: var(--line-strong);
  background: var(--surface-2);
}

.post-row.is-selected {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.post-row strong {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.45;
}

.post-row small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 11px;
}

.post-score {
  display: grid;
  min-width: 84px;
  align-content: center;
  justify-items: end;
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.post-score span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
}

/* ---------- Detail panel ---------- */

.detail-panel {
  position: sticky;
  top: 88px;
}

.post-text {
  max-height: 320px;
  overflow: auto;
  padding-right: 6px;
  color: var(--ink-2);
  font-size: 13px;
  line-height: 1.65;
  white-space: pre-wrap;
}

.detail-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 16px;
}

.stat-pill {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.stat-pill strong {
  display: block;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}

.stat-pill span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.ai-actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-top: 14px;
}

.detail-meta {
  display: grid;
  gap: 6px;
  margin-top: 12px;
}

.detail-meta div {
  display: grid;
  gap: 2px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.detail-meta b {
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.detail-meta span {
  color: var(--ink-2);
  font-size: 13px;
  line-height: 1.5;
}

.ai-actions button {
  min-height: 32px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font-size: 12px;
  font-weight: 600;
  transition: border-color 140ms ease, background 140ms ease;
}

.ai-actions button:hover {
  border-color: var(--ink-2);
  background: var(--surface-2);
}

.prompt-box {
  width: 100%;
  min-height: 120px;
  margin-top: 10px;
  padding: 10px 12px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--ink-2);
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 12px;
  line-height: 1.55;
}

.prompt-box:focus-visible {
  border-color: var(--accent);
  outline: 3px solid var(--accent-soft);
  outline-offset: 0;
}

/* ---------- Misc ---------- */

.trend-chart {
  min-height: 220px;
}

.snapshot-chart {
  margin-top: 12px;
}

.snapshot-chart .chart-svg {
  min-height: 140px;
}

.topic-cloud {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}

.data-table {
  display: grid;
  gap: 6px;
  margin-top: 14px;
}

.data-table h3 {
  margin-bottom: 4px;
  font-size: 16px;
}

.table-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 80px 130px 90px;
  gap: 12px;
  align-items: center;
  min-height: 38px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--muted);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.table-row strong {
  overflow: hidden;
  color: var(--ink);
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
  font-weight: 500;
}

.topic-tile {
  min-height: 116px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  transition: border-color 140ms ease;
}

.topic-tile:hover {
  border-color: var(--line-strong);
}

.topic-meter {
  height: 4px;
  margin-top: 12px;
  overflow: hidden;
  border-radius: 99px;
  background: var(--surface-soft);
}

.topic-meter span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
}

.lower-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.companion-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.companion-card {
  min-width: 0;
}

.markdown-box {
  min-height: 200px;
  max-height: 400px;
  overflow: auto;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--ink-2);
  font-size: 13px;
  line-height: 1.6;
}

.markdown-box > *:first-child {
  margin-top: 0;
}

.markdown-box > *:last-child {
  margin-bottom: 0;
}

.markdown-box h1,
.markdown-box h2,
.markdown-box h3,
.markdown-box h4 {
  margin: 14px 0 6px;
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.005em;
  line-height: 1.3;
}

.markdown-box h1 {
  font-size: 16px;
}

.markdown-box h2 {
  font-size: 14px;
}

.markdown-box h3 {
  margin-top: 16px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.markdown-box h4 {
  color: var(--muted);
  font-size: 12px;
}

.markdown-box p {
  margin: 0 0 10px;
}

.markdown-box ul,
.markdown-box ol {
  margin: 0 0 10px;
  padding-left: 18px;
}

.markdown-box li {
  margin: 3px 0;
}

.markdown-box li::marker {
  color: var(--muted);
}

.markdown-box strong {
  color: var(--ink);
  font-weight: 600;
}

.markdown-box em {
  color: var(--ink-2);
  font-style: italic;
}

.markdown-box code {
  padding: 1px 5px;
  border-radius: 4px;
  background: var(--surface-soft);
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 12px;
}

.markdown-box pre {
  margin: 8px 0 12px;
  padding: 10px 12px;
  overflow: auto;
  border-radius: 6px;
  background: var(--surface-soft);
  font-size: 12px;
  line-height: 1.55;
}

.markdown-box pre code {
  padding: 0;
  background: transparent;
}

.markdown-box a {
  color: var(--accent);
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
}

.markdown-box a:hover {
  color: var(--accent-ink);
  border-bottom-color: currentColor;
}

.compact-box {
  min-height: 240px;
  max-height: 340px;
  font-size: 12px;
}

.compact-box h1 {
  font-size: 14px;
}

.compact-box h2 {
  font-size: 13px;
}

/* ---------- Scrollbars ---------- */

.markdown-box::-webkit-scrollbar,
.post-text::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.markdown-box::-webkit-scrollbar-thumb,
.post-text::-webkit-scrollbar-thumb {
  background: var(--line-strong);
  border-radius: 99px;
}

.markdown-box::-webkit-scrollbar-track,
.post-text::-webkit-scrollbar-track {
  background: transparent;
}

/* ---------- Responsive ---------- */

@media (max-width: 1080px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: relative;
    height: auto;
    padding: 18px 20px;
  }

  .brand-lockup {
    margin-bottom: 18px;
  }

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

  .sidebar-footer {
    margin-top: 18px;
  }

  .hero-band,
  .command-grid,
  .analysis-grid,
  .insight-grid,
  .split-layout,
  .lower-grid,
  .companion-grid {
    grid-template-columns: 1fr;
  }

  .detail-panel {
    position: static;
  }

  .next-move-panel .next-move-cards {
    grid-template-columns: 1fr;
  }

  .workspace {
    padding: 18px 20px 36px;
  }
}

@media (max-width: 720px) {
  .workspace {
    padding: 16px;
  }

  .topbar,
  .section-header {
    align-items: stretch;
    flex-direction: column;
  }

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

  .hero-band {
    padding: 22px;
  }

  .hero-metrics,
  .metric-grid,
  .nav-stack {
    grid-template-columns: 1fr;
  }

  .bar-row,
  .table-row {
    grid-template-columns: 1fr;
  }

  .bar-row small {
    text-align: left;
  }

  .post-row {
    grid-template-columns: 1fr;
  }

  .filter-bar {
    grid-template-columns: 1fr;
  }

  .post-score {
    justify-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}