.palette-contrast-workbench {
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 14px 36px rgb(32 37 53 / 0.05);
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(280px, 0.78fr) minmax(0, 1.22fr);
  padding: 28px;
}

.palette-contrast-input,
.palette-contrast-results {
  min-width: 0;
}

.palette-contrast-input {
  background: var(--canvas);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px;
}

.palette-contrast-workbench .section-title {
  font-size: 1.55rem;
  letter-spacing: 0;
  margin-bottom: 8px;
}

.palette-contrast-workbench .intro-text {
  color: var(--muted);
  margin-bottom: 20px;
}

#cp-input {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-sizing: border-box;
  color: var(--ink);
  font-family: "Courier New", monospace;
  font-size: 0.96rem;
  line-height: 1.55;
  min-height: 116px;
  padding: 12px;
  resize: vertical;
  width: 100%;
}

#cp-input:focus {
  border-color: var(--brand);
  outline: 3px solid rgb(68 90 216 / 0.14);
}

.palette-contrast-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.palette-contrast-actions .tool-btn {
  flex: 1 1 150px;
}

.palette-contrast-summary {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 12px;
}

.palette-contrast-summary div {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

.palette-contrast-summary strong,
.palette-contrast-summary span {
  display: block;
}

.palette-contrast-summary strong {
  color: var(--ink);
  font-size: 1.45rem;
}

.palette-contrast-summary span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  margin-top: 2px;
  text-transform: uppercase;
}

.palette-contrast-output {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin: 0;
  overflow: auto;
  padding: 0;
}

.cp-matrix {
  border-collapse: collapse;
  min-width: 620px;
  width: 100%;
}

.cp-matrix th,
.cp-matrix td {
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  padding: 10px;
  text-align: center;
}

.cp-matrix th {
  background: var(--canvas);
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 900;
  white-space: nowrap;
}

.cp-matrix tbody th {
  text-align: left;
}

.cp-matrix th span {
  vertical-align: middle;
}

.cp-color-chip {
  border: 1px solid rgb(0 0 0 / 0.14);
  border-radius: 999px;
  display: inline-block;
  height: 16px;
  margin-right: 6px;
  width: 16px;
}

.cp-matrix td strong,
.cp-matrix td span {
  display: block;
}

.cp-matrix td strong {
  color: var(--ink);
  font-size: 0.88rem;
}

.cp-matrix td span {
  font-size: 0.7rem;
  font-weight: 900;
  margin-top: 2px;
  text-transform: uppercase;
}

.cp-pass {
  background: #edf8f2;
  color: #286440;
}

.cp-fail {
  background: #fff1f0;
  color: #943b32;
}

.cp-same {
  background: var(--canvas);
  color: var(--muted);
}

.cp-legend {
  color: var(--muted);
  font-size: 0.86rem;
  margin: 0;
  padding: 14px;
}

.cp-legend-pass,
.cp-legend-fail {
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 900;
  padding: 3px 6px;
  text-transform: uppercase;
}

.cp-legend-pass {
  background: #dcefe3;
  color: #286440;
}

.cp-legend-fail {
  background: #f8deda;
  color: #943b32;
}

.cp-empty {
  color: var(--muted);
  margin: 0;
  padding: 30px;
  text-align: center;
}

@media (max-width: 980px) {
  .palette-contrast-workbench {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .palette-contrast-workbench {
    padding: 18px;
  }

  .palette-contrast-input {
    padding: 16px;
  }

  .palette-contrast-summary {
    grid-template-columns: 1fr;
  }
}