:root {
  --bg: #F4F6F4;
  --panel: #FFFFFF;
  --panel-2: #E8ECE8;
  --panel-subtle: #F9FAF9;
  --ink: #14201D;
  --ink-2: #4D5E59;
  --ink-3: #82928D;
  --rule: #C6D3CD;
  --rule-light: #E0E7E3;
  --mark: #CC2E14;
  --mark-soft: #FDE8E5;
  --accent: #0B6E4F;
  --accent-soft: #E2F5EE;
  --gold: #D97706;
  --gold-soft: #FEF3C7;
  --blue: #2563EB;
  --blue-soft: #DBEAFE;
  --purple: #7C3AED;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111615;
    --panel: #1A211F;
    --panel-2: #242E2B;
    --panel-subtle: #161D1B;
    --ink: #E4ECE8;
    --ink-2: #A3B2AC;
    --ink-3: #6F807A;
    --rule: #2E3C37;
    --rule-light: #202B27;
    --mark: #FF5A36;
    --mark-soft: #381C17;
    --accent: #2ED19F;
    --accent-soft: #123328;
    --gold: #FBBF24;
    --gold-soft: #372A10;
    --blue: #60A5FA;
    --blue-soft: #142B47;
    --purple: #A78BFA;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 6px 18px rgba(0,0,0,0.4);
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Layout */
.app-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 16px 20px 60px;
}

/* Top Masthead */
.masthead {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--ink);
  margin-bottom: 16px;
}
.site-title h1 {
  font-size: clamp(20px, 3.2vw, 28px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.site-title h1 span.highlight {
  color: var(--mark);
}
.site-subtitle {
  font-size: 13px;
  color: var(--ink-2);
  margin-top: 4px;
}
.meta-badges {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  font-family: var(--mono);
  font-size: 11px;
}
.meta-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 7px;
  border-radius: 3px;
  background: var(--panel-2);
  color: var(--ink-2);
  border: 1px solid var(--rule);
}
.badge.ok {
  border-color: var(--accent);
  color: var(--accent);
}
.badge.stale {
  border-color: var(--mark);
  background: var(--mark-soft);
  color: var(--mark);
  font-weight: 700;
}

/* Alert Banner */
.alert-banner {
  background: var(--mark-soft);
  border: 1px solid var(--mark);
  color: var(--mark);
  padding: 8px 14px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 3px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Controls Panel */
.panel {
  background: var(--panel);
  border: 1px solid var(--rule);
  padding: 14px 16px;
  margin-bottom: 18px;
  border-radius: 2px;
  box-shadow: var(--shadow-sm);
}
.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  font-weight: 700;
  border-bottom: 1px dashed var(--rule);
  padding-bottom: 6px;
}
.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px 18px;
  align-items: end;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.field label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-2);
  font-weight: 600;
  display: flex;
  justify-content: space-between;
}
.field label span.val {
  color: var(--ink);
  font-weight: 700;
}
input[type="number"], select, input[type="text"] {
  height: 32px;
  padding: 4px 8px;
  font-family: var(--mono);
  font-size: 12px;
  border: 1px solid var(--rule);
  background: var(--panel-subtle);
  color: var(--ink);
  border-radius: 2px;
}
input[type="range"] {
  accent-color: var(--mark);
  height: 20px;
}
.checkbox-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  min-height: 32px;
}
.chk {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  cursor: pointer;
  user-select: none;
}
.chk input {
  accent-color: var(--mark);
  width: 14px;
  height: 14px;
}

/* Control Actions */
.control-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--rule);
}
button {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 2px;
  cursor: pointer;
  border: 1px solid var(--rule);
  background: var(--panel-2);
  color: var(--ink);
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
button:hover {
  background: var(--ink);
  color: var(--panel);
  border-color: var(--ink);
}
button.primary {
  background: var(--mark);
  border-color: var(--mark);
  color: #fff;
}
button.primary:hover {
  opacity: 0.9;
  border-color: var(--mark);
}
button.secondary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
button.secondary:hover {
  opacity: 0.9;
}
button.ghost {
  background: transparent;
  border-color: var(--rule);
}

/* Main Layout: Split Columns */
.main-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 18px;
  align-items: start;
}

/* Left Column: Visualizations & Table */
.left-col {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

/* Chart Container */
.chart-card {
  background: var(--panel);
  border: 1px solid var(--rule);
  padding: 12px 14px;
  position: relative;
  border-radius: 2px;
}
.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 11px;
}
.chart-legend {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}
.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--ink-2);
}
.legend-line {
  width: 14px;
  height: 2px;
}
.legend-line.pareto {
  border-top: 2px dashed var(--mark);
}
.legend-line.hull {
  background: var(--accent);
}
.chart-svg-wrap {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--panel-subtle);
  border: 1px solid var(--rule-light);
}
#chartSvg {
  display: block;
  width: 100%;
  height: auto;
  user-select: none;
}
.chart-tooltip {
  position: absolute;
  pointer-events: none;
  background: var(--ink);
  color: var(--panel);
  padding: 8px 12px;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.45;
  border-radius: 2px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transition: opacity 0.1s ease;
  z-index: 50;
  max-width: 280px;
}
.chart-tooltip b {
  color: #fff;
  font-size: 12px;
}
.chart-tooltip .badge-pareto {
  color: var(--gold);
  font-weight: 700;
}

/* Table Toolbar */
.table-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}
.search-box {
  flex: 1 1 220px;
  max-width: 380px;
}
.filter-tabs {
  display: flex;
  border: 1px solid var(--rule);
  border-radius: 2px;
  overflow: hidden;
}
.filter-tab {
  padding: 4px 10px;
  font-size: 11px;
  font-family: var(--mono);
  background: var(--panel-subtle);
  color: var(--ink-2);
  border: none;
  border-right: 1px solid var(--rule);
  cursor: pointer;
}
.filter-tab:last-child {
  border-right: none;
}
.filter-tab.active {
  background: var(--ink);
  color: var(--panel);
  font-weight: 700;
}

/* Table Container */
.tbl-container {
  overflow-x: auto;
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 2px;
  box-shadow: var(--shadow-sm);
}
table.models-tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  min-width: 880px;
}
table.models-tbl th {
  background: var(--panel-2);
  color: var(--ink-2);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-align: left;
  padding: 8px 10px;
  border-bottom: 2px solid var(--ink);
  border-right: 1px solid var(--rule);
  white-space: nowrap;
  user-select: none;
}
table.models-tbl th.sortable {
  cursor: pointer;
}
table.models-tbl th.sortable:hover {
  background: var(--rule-light);
}
table.models-tbl td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--rule-light);
  border-right: 1px solid var(--rule-light);
  vertical-align: middle;
}
table.models-tbl tr:hover td {
  background: var(--panel-subtle);
}
table.models-tbl tr.active-hover td {
  background: var(--mark-soft);
}
table.models-tbl tr.row-selected td {
  font-weight: 600;
}

/* 釘選列明顯視覺效果 (PIN) */
table.models-tbl tr.row-pinned td {
  background: var(--mark-soft) !important;
  border-bottom: 1px solid var(--mark);
}
table.models-tbl tr.row-pinned td:first-child {
  border-left: 4px solid var(--mark);
}
.badge-pinned {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  background: var(--mark);
  padding: 1px 6px;
  border-radius: 2px;
  margin-left: 6px;
  letter-spacing: 0.05em;
}

/* 排除列變淡視覺效果 (EXCL) */
table.models-tbl tr.row-excluded {
  opacity: 0.35;
  filter: grayscale(85%);
  transition: opacity 0.15s ease, filter 0.15s ease;
}
table.models-tbl tr.row-excluded:hover {
  opacity: 0.8;
  filter: grayscale(10%);
}
table.models-tbl tr.row-excluded td {
  background: var(--panel-2);
}
table.models-tbl tr.row-excluded .model-title {
  text-decoration: line-through;
  color: var(--ink-3);
}

/* State Switch Segment Button in Row */
.state-switch {
  display: inline-flex;
  border: 1px solid var(--rule);
  border-radius: 2px;
  overflow: hidden;
}
.state-btn {
  padding: 2px 6px;
  font-size: 10px;
  font-family: var(--mono);
  background: var(--panel-subtle);
  color: var(--ink-2);
  border: none;
  border-right: 1px solid var(--rule);
  cursor: pointer;
}
.state-btn:last-child {
  border-right: none;
}
.state-btn.active-pin {
  background: var(--mark);
  color: #fff;
  font-weight: 700;
}
.state-btn.active-auto {
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}
.state-btn.active-exclude {
  background: var(--ink-2);
  color: #fff;
  font-weight: 700;
}

/* Capability Badges */
.cap-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--mono);
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 2px;
}
.cap-badge.measured {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
}
.cap-badge.converted {
  background: var(--blue-soft);
  color: var(--blue);
}
.cap-badge.unmeasured {
  background: var(--panel-2);
  color: var(--ink-3);
  font-style: italic;
}

/* Frontier Badges */
.front-badge {
  display: inline-block;
  padding: 1px 5px;
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
}
.front-badge.f1 {
  background: var(--mark-soft);
  color: var(--mark);
}
.front-badge.f2 {
  background: var(--gold-soft);
  color: var(--gold);
}
.front-badge.other {
  background: var(--panel-2);
  color: var(--ink-2);
}
.dent-tag {
  color: var(--mark);
  font-size: 10px;
  margin-left: 3px;
  font-family: var(--mono);
}

/* Evidence Expand Row */
.evidence-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--blue);
  font-size: 11px;
  font-family: var(--mono);
  padding: 0 4px;
}
.evidence-content {
  padding: 8px 12px;
  background: var(--panel-subtle);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-2);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 8px;
}

/* Right Column: Selected Catalog Panel */
.right-col {
  position: sticky;
  top: 16px;
  background: var(--panel);
  border: 1px solid var(--rule);
  padding: 14px;
  border-radius: 2px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: calc(100vh - 32px);
  overflow-y: auto;
}
.right-col > * {
  flex-shrink: 0;
}
.right-col > .catalog-head,
.right-col > p,
.right-col > .selected-list,
.right-col > .catalog-actions {
  flex-shrink: 0;
}
.catalog-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 8px;
}
.catalog-head h3 {
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
}
.catalog-count {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-2);
  background: var(--panel-2);
  padding: 2px 6px;
  border-radius: 2px;
}

.selected-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 120px;
  max-height: clamp(220px, calc(100vh - 420px), 560px);
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--rule) transparent;
  padding-right: 2px;
}
.selected-list::-webkit-scrollbar {
  width: 5px;
}
.selected-list::-webkit-scrollbar-track {
  background: transparent;
}
.selected-list::-webkit-scrollbar-thumb {
  background-color: var(--rule);
  border-radius: 3px;
}
.selected-list::-webkit-scrollbar-thumb:hover {
  background-color: var(--ink-2);
}
.selected-card {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--panel-subtle);
  border: 1px solid var(--rule-light);
  padding: 6px 8px;
  border-radius: 2px;
  font-size: 12px;
  cursor: grab;
  user-select: none;
  transition: transform 0.1s, box-shadow 0.1s;
}
.selected-card:active {
  cursor: grabbing;
}
.selected-card.dragging {
  opacity: 0.5;
  background: var(--panel-2);
}
.selected-card.drag-over {
  border-top: 2px solid var(--mark);
}
.card-prio {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--ink-2);
  width: 18px;
  text-align: center;
}
.card-info {
  flex: 1 1 auto;
  min-width: 0;
}
.card-name {
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 12px;
}
.card-sub {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  display: flex;
  gap: 6px;
}
.card-actions {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.btn-move {
  padding: 1px 4px;
  font-size: 9px;
  line-height: 1;
  background: transparent;
  border: 1px solid var(--rule-light);
  color: var(--ink-2);
  border-radius: 1px;
}
.btn-move:hover {
  background: var(--ink);
  color: #fff;
}

.catalog-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 8px;
  border-top: 1px dashed var(--rule);
  padding-top: 10px;
  overflow-wrap: break-word;
  word-break: break-word;
}
.catalog-actions button {
  justify-content: center;
  width: 100%;
}
.catalog-actions code {
  word-break: break-all;
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--ink);
  color: var(--panel);
  padding: 10px 16px;
  font-size: 12px;
  font-family: var(--mono);
  border-radius: 3px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.25s ease;
  pointer-events: none;
  z-index: 1000;
}
.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive: Narrow Screen <= 1100px */
@media (max-width: 1100px) {
  .main-layout {
    grid-template-columns: 1fr;
  }
  .right-col {
    position: static;
    max-height: none;
  }
}

/* 375px Mobile Adaptation */
@media (max-width: 480px) {
  .app-container {
    padding: 10px 10px 40px;
  }
  .masthead {
    flex-direction: column;
    align-items: flex-start;
  }
  .meta-badges {
    align-items: flex-start;
  }
  .controls-grid {
    grid-template-columns: 1fr;
  }
  .control-actions {
    justify-content: stretch;
  }
  .control-actions button {
    flex: 1 1 auto;
  }
  .table-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .search-box {
    max-width: 100%;
  }
  .right-col {
    position: static;
    max-height: none;
  }
}