:root {
  --bg: #1a1612;
  --panel: #2a241c;
  --border: #4a4034;
  --text: #f0e8dc;
  --muted: #a89880;
  --accent: #c9a227;
  --accent-dim: #8a7020;
  --ok: #6b9e6b;
  --err: #c75c5c;
  --fold: #6da2c0;
  --check: #8fbc8b;
  --bet: #e9967a;

  /* ── 主题皮肤变量（默认 = 原版扑克金棕） ── */
  --font-ui: "Segoe UI", "Microsoft YaHei", sans-serif;
  --font-mono: Consolas, "Microsoft YaHei", monospace;
  --font-display: var(--font-ui);
  --top-bar-bg: linear-gradient(180deg, #322a22 0%, var(--bg) 100%);
  --body-bg: var(--bg);
  --radius-panel: 8px;
  --radius-btn: 4px;
  --radius-card: 3px;
  --radius-input: 4px;
  --radius-token: 4px;
  --shadow-panel: none;
  --input-bg: #1e1a16;
  --btn-bg: #3d352c;
  --btn-bg-hover: #4d4538;
  --btn-primary-fg: #fff8e8;
  --btn-primary-fg-hover: #1a1612;
  --node-bg: rgba(0, 0, 0, 0.22);
  --card-face-bg: #f8f4ec;
  --card-face-border: rgba(0, 0, 0, 0.15);
  --card-face-text: #222;
  --card-picked-bg: #c9a227;
  --card-picked-text: #1a1612;
  --card-combo-bg: #6b9e6b;
  --card-combo-text: #fff;
  --matrix-wrap-bg: #e8e0d4;
  --matrix-cell-bg: #e5ded0;
  --matrix-cell-filled: #ddd4c4;
  --matrix-cell-border: #d8cfbf;
  --matrix-selected: #c9a227;
  --matrix-label: #111;
  --matrix-label-glow: #e8e0d4;
  --token-bg: #fffef8;
  --token-border: #ccc4b8;
  --token-text: #111;
  --token-suffix: #555;
  --preview-box-bg: #e5ded0;
  --preview-box-border: #d8cfbf;
  --preview-label: #111;
  --preview-label-glow: #e8e0d4;
  --preview-list-bg: #f5f0e6;
  --popup-bg: #fffef8;
  --popup-border: #8a7a62;
  --popup-text: #111;
  --nav-btn-bg: #352e26;
  --nav-card-bg: #fffef8;
  --nav-card-border: #ccc4b8;
  --nav-card-hover: #fff;
  --deal-bg: #fffef8;
  --deal-border: #ccc4b8;
  --deal-hover: #fff;
  --deal-blank: #d8d8d8;
  --deal-blank-border: #c0c0c0;
  --deal-blocked: #b8b8b8;
  --ratio-bar: #d9d1c3;
  --status-muted-bg: rgba(0, 0, 0, 0.2);
  --err-text: #ffb4b4;
  --sidebar-width: minmax(280px, 340px);
  --layout-gap: 1rem;
  --panel-padding: 1rem;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-ui);
  background: var(--body-bg);
  color: var(--text);
  line-height: 1.45;
}

.top-bar {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--top-bar-bg);
}

.top-bar h1 {
  margin: 0;
  font-size: 1.35rem;
  font-family: var(--font-display);
  color: var(--accent);
}

.subtitle {
  margin: 0.25rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.desktop-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  gap: var(--layout-gap);
  padding: var(--layout-gap);
  max-width: 1400px;
  margin: 0 auto;
  align-items: start;
}

@media (max-width: 960px) {
  .desktop-layout {
    grid-template-columns: 1fr;
  }
}

.sidebar h2 {
  margin: 1rem 0 0.5rem;
  font-size: 0.95rem;
}

.sidebar h2:first-of-type {
  margin-top: 0;
}

.full-select {
  width: 100%;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-input);
  background: var(--input-bg);
  color: var(--text);
  font-size: 0.82rem;
  margin-bottom: 0.5rem;
}

.hint {
  font-size: 0.78rem;
  color: var(--muted);
  margin: 0 0 0.5rem;
}

.btn-link {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 0.75rem;
  padding: 0;
  margin-left: 0.35rem;
}

.status-lines {
  font-size: 0.82rem;
  margin: 0.75rem 0;
  line-height: 1.6;
}

.btn-go {
  width: 100%;
  padding: 0.65rem;
  font-size: 1rem;
  font-weight: 600;
}

.btn-refresh {
  width: 100%;
  margin-top: 0.4rem;
}

#adminPanel {
  display: none !important;
}

html.admin-mode #adminPanel {
  display: block !important;
}

html.admin-mode #adminPanel[hidden] {
  display: block !important;
}

html.public-mode .admin-only-hint,
html.public-mode .matrix-stats {
  display: none !important;
}

html.public-mode .btn-go {
  margin-bottom: 0;
}

.card-picker {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  padding-bottom: 4px;
}

.card-col {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 4px 3px 6px;
  border-radius: 6px;
  background: var(--suit-bg, #2a241c);
  border: 1px solid var(--border);
}

.card-col-head {
  text-align: center;
  font-size: 1.15rem;
  padding: 4px 2px;
  border-radius: 4px;
  font-weight: bold;
  line-height: 1;
}

.card-btn {
  width: 100%;
  min-height: 1.85rem;
  padding: 3px 0;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  border: 1px solid var(--card-face-border);
  border-radius: var(--radius-card);
  background: var(--card-face-bg);
  color: var(--card-face-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
}

.card-btn .pick-rank {
  font-weight: 700;
  font-size: 1.125rem;
}

.card-btn .pick-suit {
  font-size: 1.15em;
  font-weight: 700;
}

.card-btn:hover {
  border-color: var(--accent);
}

.card-btn.picked {
  background: var(--card-picked-bg);
  color: var(--card-picked-text);
  font-weight: bold;
}

.card-btn.picked.combo {
  background: var(--card-combo-bg);
  color: var(--card-combo-text);
}

.cfr-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  align-items: start;
}

.nav-panel {
  margin-bottom: 0.75rem;
}

.nav-actions-row {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.nav-back-btn {
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.nav-actions-row .child-nav {
  flex: 1;
  min-width: 0;
}

.node-info-panel {
  margin-bottom: 0.65rem;
  padding: 0.55rem 0.65rem;
  border-radius: 6px;
  background: var(--node-bg);
  border: 1px solid var(--border);
}

.node-info-path {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.45;
  word-break: break-word;
}

.node-info-meta {
  margin-top: 0.35rem;
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.4;
}

.board-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  margin-bottom: 0.75rem;
}

.board-bar-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: nowrap;
}

.board-bar-label {
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 600;
}

.board-cards-large {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: nowrap;
  min-height: 3.25rem;
}

.inline-cards {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  flex-wrap: wrap;
  vertical-align: middle;
}

.line-board-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.25rem 0.35rem;
}

.card-token {
  display: inline-flex;
  align-items: baseline;
  gap: 0.05rem;
  padding: 0.15rem 0.25rem;
  border-radius: var(--radius-token);
  background: var(--token-bg);
  border: 1px solid var(--token-border);
  line-height: 1;
}

.card-token--sm {
  font-size: 0.95rem;
  padding: 0.1rem 0.2rem;
}

.card-token--sm .card-rank {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--token-text);
}

.card-token--sm .card-suit {
  font-size: 0.95rem;
  font-weight: 700;
}

.card-token--lg {
  padding: 0.35rem 0.55rem;
  border-radius: 8px;
  border-width: 2px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
}

.card-token--lg .card-rank {
  font-size: 2rem;
  font-weight: 800;
  color: var(--token-text);
  font-family: Consolas, "Microsoft YaHei", sans-serif;
}

.card-token--lg .card-suit {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
}

.matrix-hover-popup {
  position: fixed;
  z-index: 1000;
  max-width: 320px;
  max-height: 340px;
  overflow: auto;
  padding: 0.4rem 0.5rem;
  background: var(--popup-bg);
  border: 1px solid var(--popup-border);
  border-radius: 6px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--token-text);
  pointer-events: none;
}

/* ── hover popup table ── */
.hover-table { width:100%; border-collapse:collapse; }
.hover-table th { font-weight:700; padding:2px 6px; white-space:nowrap; text-align:right; border-bottom:1px solid var(--border); }
.hover-table td { padding:1px 6px; white-space:nowrap; text-align:right; }
.hover-table .hover-th-combo { text-align:left; min-width:40px; }
.hover-table .hover-td-combo { text-align:left; }
.hover-table .hover-combo { font-weight:600; letter-spacing:1px; }

.preview-panel {
  display: flex;
  flex-direction: column;
  min-height: 560px;
  position: sticky;
  top: 0.75rem;
  align-self: start;
}

.preview-combo-box {
  position: relative;
  width: 100%;
  max-width: 200px;
  margin: 0 auto 0.75rem;
  aspect-ratio: 1;
  max-height: 200px;
  border: 2px solid var(--preview-box-border);
  border-radius: var(--radius-panel);
  background: var(--preview-box-bg);
  overflow: hidden;
}

.preview-combo-box.empty {
  background: var(--preview-box-bg);
}

.preview-combo-inner {
  position: absolute;
  inset: 0;
}

.preview-combo-seg {
  position: absolute;
  top: 0;
  bottom: 0;
}

.preview-combo-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  font: bold 1.35rem var(--font-mono);
  color: var(--preview-label);
  text-shadow: 0 0 3px var(--preview-label-glow), 0 0 3px var(--preview-label-glow);
  pointer-events: none;
}

.preview-combo-label .preview-hand-rank {
  font-weight: 800;
  color: var(--preview-label);
}

.preview-combo-label .preview-hand-suit {
  font-weight: 800;
  margin-right: 0.2rem;
}

.preview-combo-label.dim .preview-hand-rank,
.preview-combo-label.dim .preview-hand-suit {
  color: #888 !important;
}

.preview-combo-label.dim {
  color: #888;
}

.preview-meta {
  text-align: center;
  margin-bottom: 0.65rem;
  font-family: Consolas, monospace;
  font-size: 0.85rem;
}

.preview-meta-line {
  margin: 0.2rem 0;
  color: var(--text);
}

.preview-pick-line {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0.35rem 0;
}

.preview-combo-list {
  flex: 1;
  overflow: auto;
  min-height: 160px;
  max-height: 280px;
  font-size: 0.72rem;
  font-family: Consolas, monospace;
  background: var(--preview-list-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.4rem;
}

.preview-list-head {
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.preview-list-line {
  line-height: 1.35;
  margin-bottom: 0.12rem;
}

.preview-list-more {
  color: var(--muted);
  margin-top: 0.25rem;
}

.nav-item {
  display: inline-flex;
  flex-direction: column;
  align-items: stretch;
  vertical-align: top;
}

.nav-ratio-bar {
  height: 8px;
  width: 100%;
  background: var(--ratio-bar);
  border-radius: 0 0 3px 3px;
  overflow: hidden;
  cursor: pointer;
}

.nav-ratio-bar span {
  display: block;
  height: 100%;
  min-width: 0;
}

.preview-panel h2 {
  margin-top: 0;
  flex-shrink: 0;
}

.preview-freq {
  margin-bottom: 0.65rem;
  flex-shrink: 0;
}

.preview-canvas-wrap {
  flex: 1;
  min-height: 420px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--preview-list-bg);
}

.preview-canvas-wrap canvas {
  display: block;
  width: 100%;
  height: auto;
  min-height: 420px;
}

.freq-bar {
  display: flex;
  height: 22px;
  border-radius: 3px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.freq-seg {
  display: block;
  height: 100%;
}

.freq-txt {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.35rem;
  line-height: 1.45;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-panel);
  padding: var(--panel-padding);
  box-shadow: var(--shadow-panel);
}

.panel h2 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 600;
}

.cfr-row .matrix-panel {
  min-width: 0;
}

.cfr-row .preview-panel {
  min-width: 0;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
}

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

.field input,
.field select {
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-input);
  background: var(--input-bg);
  color: var(--text);
  font-size: 0.9rem;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.btn {
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  background: var(--btn-bg);
  color: var(--text);
  cursor: pointer;
  font-size: 0.88rem;
}

.btn:hover:not(:disabled) {
  background: var(--btn-bg-hover);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn.primary {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--btn-primary-fg);
}

.btn.primary:hover:not(:disabled) {
  background: var(--accent);
  color: var(--btn-primary-fg-hover);
}

.btn.secondary {
  background: transparent;
}

.status {
  font-size: 0.82rem;
  margin: 0.35rem 0 0;
}

.status.ok {
  color: var(--ok);
}

.status.err {
  color: var(--err);
}

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

.status-box {
  margin-top: 0.5rem;
  padding: 0.55rem 0.65rem;
  border-radius: 4px;
  border: 1px solid var(--border);
  font-size: 0.88rem;
  min-height: 2.2rem;
  line-height: 1.4;
  word-break: break-word;
}

.status-box.ok {
  border-color: var(--ok);
  background: rgba(107, 158, 107, 0.15);
  color: var(--ok);
}

.status-box.err {
  border-color: var(--err);
  background: rgba(199, 92, 92, 0.15);
  color: var(--err-text);
}

.status-box.muted {
  color: var(--muted);
  background: var(--status-muted-bg);
}

.meta {
  font-size: 0.78rem;
  color: var(--muted);
  word-break: break-all;
}

.child-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  min-height: 2rem;
}

.child-nav .nav-btn {
  padding: 0.4rem 0.65rem;
  font-size: 0.82rem;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  background: var(--nav-btn-bg);
  color: var(--text);
  cursor: pointer;
  max-width: 100%;
  white-space: nowrap;
}

.child-nav .nav-btn:hover {
  border-color: var(--accent);
}

.child-nav .nav-btn.card-btn {
  min-width: 2.5rem;
  text-align: center;
  font-family: var(--font-mono);
}

.child-nav .nav-btn.nav-card-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.05rem;
  padding: 0.35rem 0.55rem;
  background: var(--nav-card-bg);
  border-color: var(--nav-card-border);
  color: var(--token-text);
}

.child-nav .nav-btn.nav-card-btn:hover {
  border-color: var(--accent);
  background: var(--nav-card-hover);
}

.child-nav .nav-btn.nav-card-btn .nav-card-rank {
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--token-text);
}

.child-nav .nav-btn.nav-card-btn .nav-card-suit {
  font-weight: 800;
  font-size: 1rem;
  line-height: 1;
}

.child-nav .nav-btn.nav-card-btn .nav-card-suffix {
  margin-left: 0.2rem;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--token-suffix);
}

.child-nav--deal-grid {
  display: block;
  width: 100%;
}

.deal-card-grid {
  display: flex;
  flex-direction: column;
  gap: 3px;
  width: 100%;
  max-width: 100%;
}

.deal-card-row {
  display: grid;
  grid-template-columns: repeat(13, minmax(0, 1fr));
  gap: 2px;
}

.deal-card-cell {
  min-width: 0;
  min-height: 1.55rem;
  padding: 0.15rem 0;
  border: 1px solid var(--deal-border);
  border-radius: var(--radius-card);
  background: var(--deal-bg);
  cursor: pointer;
  font-family: var(--font-mono);
}

.deal-card-cell--active:hover {
  border-color: var(--accent);
  background: var(--deal-hover);
}

.deal-card-cell--blank {
  background: var(--deal-blank);
  border-color: var(--deal-blank-border);
  cursor: default;
  pointer-events: none;
  padding: 0;
  min-height: 1.55rem;
}

.deal-card-cell--blank.deal-card-cell--blocked {
  background: var(--deal-blocked);
}

.deal-card-cell.deal-card-cell--active.nav-card-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 0.1rem 0;
}

@media (max-width: 900px) {
  .deal-card-row {
    gap: 1px;
  }
  .deal-card-cell {
    min-height: 1.35rem;
    font-size: 0.68rem;
  }
}

.matrix-wrap {
  position: relative;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-panel);
  background: var(--matrix-wrap-bg);
  min-height: 420px;
  padding: 4px;
}

.matrix-grid {
  display: grid;
  grid-template-columns: repeat(13, minmax(40px, 1fr));
  gap: 1px;
  width: max-content;
  min-width: 100%;
}

.matrix-cell {
  position: relative;
  min-width: 40px;
  min-height: 36px;
  padding: 0;
  border: 1px solid var(--matrix-cell-border);
  background: var(--matrix-cell-bg);
  cursor: pointer;
  overflow: hidden;
}

.matrix-cell.filled {
  background: var(--matrix-cell-filled);
}

.matrix-cell.selected {
  outline: 2px solid var(--matrix-selected);
  outline-offset: -2px;
  z-index: 1;
}

.matrix-cell-segs {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  display: flex;
  flex-direction: row;
  align-items: stretch;
  pointer-events: none;
  z-index: 0;
}

.matrix-cell-seg {
  display: block;
  height: 100%;
  min-width: 0;
}

.matrix-cell-label {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  font-size: 11px;
  font-weight: 700;
  color: var(--matrix-label);
  pointer-events: none;
  text-shadow: 0 0 2px var(--matrix-label-glow), 0 0 2px var(--matrix-label-glow);
}

.matrix-cell-ev {
  position: absolute;
  right: 2px;
  bottom: 1px;
  z-index: 2;
  font-size: 8px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--matrix-label);
  pointer-events: none;
}

.meta.ok {
  color: var(--ok);
}

.meta.err {
  color: var(--err-text);
}

#matrixCanvas.matrix-canvas-fallback {
  display: none;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-top: 0.75rem;
  font-size: 0.78rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.legend-swatch {
  width: 14px;
  height: 14px;
  border-radius: 2px;
  border: 1px solid rgba(0, 0, 0, 0.2);
}

.footer {
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--muted);
  font-family: Consolas, monospace;
}