:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --border: #dde3ec;
  --text: #1a2332;
  --muted: #5c6b7f;
  --primary: #1e5a8a;
  --primary-light: #e8f1f8;
  --accent: #c45c26;
  --accent-light: #fdf0ea;
  --shadow: 0 2px 12px rgba(26, 35, 50, 0.08);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Sarabun', 'Noto Sans Thai', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

header {
  background: linear-gradient(135deg, #1e5a8a 0%, #2d7ab8 100%);
  color: #fff;
  padding: 1.5rem 2rem;
}

.header-inner h1 {
  font-size: 1.6rem;
  font-weight: 700;
}

.subtitle {
  opacity: 0.85;
  font-size: 0.95rem;
  margin-top: 0.25rem;
}

.page-links {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.85rem;
  flex-wrap: wrap;
}

.page-links a {
  color: #fff;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  font-size: 0.9rem;
  background: rgba(255, 255, 255, 0.08);
}

.page-links a.active,
.page-links a:hover {
  background: #fff;
  color: var(--primary);
}

.border-nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  box-shadow: var(--shadow);
}

.nav-label {
  font-weight: 600;
  color: var(--accent);
  font-size: 0.9rem;
  white-space: nowrap;
}

.border-buttons {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.border-buttons button {
  padding: 0.4rem 1rem;
  border: 2px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.15s;
}

.border-buttons button:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.border-buttons button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

main {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 1.5rem;
  padding: 1.5rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.dashboard-main {
  max-width: 1680px;
  grid-template-columns: 300px 1fr;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}

.panel h2 {
  font-size: 1rem;
  margin-bottom: 1rem;
  color: var(--primary);
}

.filters label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.filters select,
.filters input[type="number"] {
  display: block;
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  background: #fff;
}

.age-range {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.age-range label {
  flex: 1;
  margin-bottom: 0;
}

.range-sep {
  padding-bottom: 0.5rem;
  color: var(--muted);
}

.age-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.age-presets button {
  padding: 0.3rem 0.65rem;
  font-size: 0.8rem;
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 6px;
  cursor: pointer;
}

.preset-filters {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.preset-filters button {
  padding: 0.65rem 0.75rem;
  border: 2px solid var(--border);
  background: var(--bg);
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.82rem;
  text-align: left;
  line-height: 1.4;
  transition: all 0.15s;
}

.preset-filters button:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.preset-filters button.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.age-presets button.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

#manualFilters.disabled-manual {
  opacity: 0.55;
  pointer-events: none;
}

.btn-primary {
  width: 100%;
  padding: 0.65rem;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  font-weight: 600;
}

.btn-primary:hover {
  background: #174a72;
}

.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.dashboard-summary {
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}

.dashboard-year-card .value {
  font-size: 1.45rem;
}

.dashboard-card-detail {
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.55;
}

.dashboard-change-panel {
  margin-bottom: 1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.card .label {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.card .value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary);
  margin-top: 0.25rem;
}

.card.highlight {
  background: var(--accent-light);
  border-color: #e8c4b0;
}

.card.highlight .value {
  color: var(--accent);
}

.chart-wrap {
  height: 220px;
  position: relative;
}

.chart-wrap canvas {
  width: 100% !important;
  height: 100% !important;
}

.panel-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.panel-title-row h2 {
  margin-bottom: 0;
}

.panel-title-row select {
  min-width: 180px;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  font-size: 0.9rem;
}

.pyramid-wrap {
  height: 340px;
  position: relative;
  margin-bottom: 1rem;
}

.pyramid-wrap canvas {
  width: 100% !important;
  height: 100% !important;
}

.compact-table {
  max-height: 180px;
}

.dashboard-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.dashboard-actions {
  display: flex;
  align-items: flex-end;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.dashboard-actions label {
  color: var(--muted);
  font-size: 0.85rem;
}

.dashboard-actions select {
  display: block;
  min-width: 8.5rem;
  margin-top: 0.35rem;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  font-size: 0.95rem;
}

.dashboard-toolbar h2 {
  margin-bottom: 0.2rem;
}

.dashboard-toolbar p {
  color: var(--muted);
  font-size: 0.9rem;
}

.dashboard-reset {
  width: auto;
  white-space: nowrap;
  padding-left: 1rem;
  padding-right: 1rem;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 1rem;
}

.dashboard-chart-card {
  margin-bottom: 0;
}

.dashboard-chart-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  margin-bottom: 0.35rem;
}

.dashboard-change-panel .dashboard-chart-head {
  align-items: flex-start;
  margin-bottom: 1rem;
}

.dashboard-chart-head h3 {
  color: var(--primary);
  font-size: 1.05rem;
}

.dashboard-chart-head span {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
}

.dashboard-chart-head p {
  color: var(--muted);
  font-size: 0.88rem;
  margin-top: 0.2rem;
}

.change-chart {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.waterfall-total {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.75rem;
  align-items: baseline;
  margin-bottom: 0.75rem;
  padding: 0.8rem 1rem;
  border-radius: 1rem;
  background: rgba(92, 107, 127, 0.08);
}

.waterfall-total span {
  color: var(--muted);
  font-weight: 700;
}

.waterfall-total strong {
  font-size: 1.25rem;
  font-variant-numeric: tabular-nums;
}

.waterfall-total em {
  font-size: 0.85rem;
  font-style: normal;
  font-variant-numeric: tabular-nums;
}

.waterfall-total.increase strong,
.waterfall-total.increase em {
  color: #15803d;
}

.waterfall-total.decrease strong,
.waterfall-total.decrease em {
  color: #b91c1c;
}

.waterfall-head,
.waterfall-row {
  display: grid;
  grid-template-columns: 5rem minmax(12rem, 1fr) 13rem;
  gap: 0.75rem;
  align-items: center;
}

.waterfall-head {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0 0.25rem 0.25rem;
}

.waterfall-row {
  min-height: 2rem;
  padding: 0.22rem 0.25rem;
  border-radius: 0.8rem;
}

.waterfall-row:nth-child(even) {
  background: rgba(92, 107, 127, 0.04);
}

.waterfall-age {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-align: right;
  white-space: nowrap;
}

.waterfall-track {
  position: relative;
  height: 1.28rem;
  border-radius: 999px;
  background: rgba(92, 107, 127, 0.08);
  overflow: hidden;
}

.waterfall-axis {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: rgba(92, 107, 127, 0.35);
  transform: translateX(-50%);
}

.waterfall-bar {
  position: absolute;
  top: 0;
  bottom: 0;
  max-width: 50%;
  min-width: 2px;
}

.waterfall-row.increase .waterfall-bar {
  left: 50%;
  background: linear-gradient(90deg, #22c55e, #86efac);
}

.waterfall-row.decrease .waterfall-bar {
  right: 50%;
  background: linear-gradient(90deg, #fca5a5, #ef4444);
}

.change-value {
  font-size: 0.78rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.change-value span {
  display: block;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 400;
}

.change-value.increase {
  color: #15803d;
}

.change-value.decrease {
  color: #b91c1c;
}

.dashboard-trend-panel {
  margin-bottom: 1rem;
}

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

.trend-card {
  border-radius: 1rem;
  background: rgba(92, 107, 127, 0.06);
  padding: 0.85rem;
}

.trend-card-head {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: baseline;
  margin-bottom: 0.35rem;
}

.trend-card-head h3 {
  color: var(--primary);
  font-size: 1rem;
}

.trend-card-head span {
  font-size: 0.82rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.trend-card.increase .trend-card-head span {
  color: #15803d;
}

.trend-card.decrease .trend-card-head span {
  color: #b91c1c;
}

.trend-line-chart {
  width: 100%;
  height: auto;
  overflow: visible;
}

.trend-grid-line {
  stroke: rgba(92, 107, 127, 0.14);
  stroke-width: 1;
}

.trend-line {
  fill: none;
  stroke: #2563eb;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 3.5;
}

.trend-point circle {
  fill: #2563eb;
  stroke: #fff;
  stroke-width: 2;
}

.trend-point text {
  fill: var(--primary);
  font-size: 0.58rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.trend-point .trend-year {
  fill: var(--muted);
  font-size: 0.54rem;
  font-weight: 600;
}

.pyramid-legend {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 0.65rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.male-dot::before,
.female-dot::before {
  content: '';
  display: inline-block;
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 999px;
  margin-right: 0.35rem;
  vertical-align: -0.05rem;
}

.male-dot::before {
  background: #38a7f5;
}

.female-dot::before {
  background: #f472b6;
}

.dashboard-pyramid {
  display: flex;
  flex-direction: column;
  gap: 0.26rem;
}

.pyramid-row {
  display: grid;
  grid-template-columns: 4.7rem minmax(0, 1fr) 4.2rem minmax(0, 1fr) 4.7rem;
  align-items: center;
  gap: 0.5rem;
  min-height: 1.3rem;
}

.pyramid-value {
  color: var(--muted);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.male-value {
  text-align: right;
}

.female-value {
  text-align: left;
}

.pyramid-age {
  text-align: center;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 600;
  white-space: nowrap;
}

.pyramid-bar-track {
  width: 100%;
  min-width: 0;
  background: rgba(92, 107, 127, 0.08);
  border-radius: 4px;
  overflow: hidden;
}

.male-track {
  display: flex;
  justify-content: flex-end;
}

.female-track {
  display: flex;
  justify-content: flex-start;
}

.pyramid-bar {
  min-width: 2px;
  height: 1.08rem;
  border-radius: 4px;
}

.pyramid-bar.male {
  background: linear-gradient(90deg, #7dd3fc, #38a7f5);
}

.pyramid-bar.female {
  background: linear-gradient(90deg, #f472b6, #f9a8d4);
}

.dashboard-empty {
  color: var(--muted);
  text-align: center;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th, td {
  padding: 0.6rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  background: var(--bg);
  font-weight: 600;
  color: var(--muted);
  font-size: 0.8rem;
}

tbody tr:hover {
  background: var(--primary-light);
  cursor: pointer;
}

tbody tr.selected {
  background: var(--accent-light);
}

.empty-msg {
  text-align: center;
  padding: 2rem;
  color: var(--muted);
}

@media (max-width: 900px) {
  main {
    grid-template-columns: 1fr;
    padding: 1rem;
  }

  .border-nav {
    padding: 0.75rem 1rem;
  }

  header {
    padding: 1rem;
  }

  .panel-title-row {
    align-items: stretch;
    flex-direction: column;
  }

  .panel-title-row select {
    width: 100%;
  }

  .dashboard-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .dashboard-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .dashboard-actions select {
    width: 100%;
  }

  .dashboard-reset {
    width: 100%;
  }

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

  .waterfall-total {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .waterfall-head,
  .waterfall-row {
    grid-template-columns: 3.6rem minmax(7rem, 1fr) 7.8rem;
    gap: 0.45rem;
  }

  .waterfall-head {
    font-size: 0.66rem;
  }

  .waterfall-age {
    font-size: 0.66rem;
  }

  .waterfall-track {
    height: 1.1rem;
  }

  .change-value {
    font-size: 0.66rem;
  }

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

  .trend-card-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.25rem;
  }

  .pyramid-row {
    grid-template-columns: 3.8rem minmax(0, 1fr) 3.4rem minmax(0, 1fr) 3.8rem;
    gap: 0.3rem;
  }

  .pyramid-value {
    font-size: 0.66rem;
  }
}