:root {
  --color-paper: #f4f1e8;
  --color-paper-deep: #ece7d9;
  --color-ink: #1c1b18;
  --color-ink-soft: #6b665b;
  --color-line: #d9d3c3;
  --color-accent: #d8442a;
  --color-accent-deep: #b0331d;
  --color-mark: #e0a92e;
  --font-display: Inter, Noto Sans TC, sans-serif;
  --font-body: Inter, Noto Sans TC, sans-serif;
  --font-mono: Inter, Noto Sans TC, sans-serif;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

.tool-intro {
  max-width: 64ch;
  margin-block: 24px 40px;
  color: #6b665b;
}

.controls {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 24px;
  margin-bottom: 24px;
  background: #ece7d9;
  border: 1px solid #d9d3c3;
  border-radius: 2px;
}

.control-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.control-label {
  flex: 0 0 auto;
  min-width: 5em;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #6b665b;
}

.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.opt-chip {
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  letter-spacing: 0.04em;
  padding: 4px 16px;
  border: 1px solid #d9d3c3;
  border-radius: 2px;
  color: #6b665b;
  background: #f4f1e8;
  cursor: pointer;
  transition: color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1), border-color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1), background-color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.opt-chip:hover {
  color: #1c1b18;
  border-color: #1c1b18;
}
.opt-chip.is-active {
  color: #f4f1e8;
  background: #d8442a;
  border-color: #d8442a;
}

.control-row .btn {
  margin-left: auto;
}

.editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 16px;
}

.editor-toolbar-label {
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: #6b665b;
  font-variant-numeric: tabular-nums;
}

.editor-toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.text-area {
  width: 100%;
  min-height: 220px;
  padding: 24px;
  margin-bottom: 16px;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: #1c1b18;
  background: #f4f1e8;
  border: 1.5px solid #1c1b18;
  border-radius: 2px;
  box-shadow: 6px 6px 0 rgba(28, 27, 24, 0.12);
  resize: vertical;
  white-space: pre;
  overflow-wrap: normal;
  overflow-x: auto;
  transition: border-color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.text-area::placeholder {
  color: #6b665b;
}
.text-area:focus {
  outline: none;
  border-color: #d8442a;
}
.text-area[readonly] {
  background: #ece7d9;
}

.copy-hint {
  min-height: 1.4em;
  margin: 0 0 24px;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  color: #d8442a;
}

.table-preview-wrap {
  overflow-x: auto;
  border: 1px solid #d9d3c3;
  border-radius: 2px;
  background: #f4f1e8;
}

.preview-empty {
  margin: 0;
  padding: 24px;
  font-size: 1rem;
  color: #6b665b;
}

.table-preview {
  width: 100%;
  border-collapse: collapse;
  font-size: 1rem;
  white-space: nowrap;
}
.table-preview th, .table-preview td {
  padding: 8px 16px;
  text-align: left;
  border-bottom: 1px solid #d9d3c3;
  border-right: 1px solid #d9d3c3;
}
.table-preview th:last-child, .table-preview td:last-child {
  border-right: none;
}
.table-preview thead th {
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: #f4f1e8;
  background: #1c1b18;
  white-space: nowrap;
}
.table-preview tbody tr:last-child td {
  border-bottom: none;
}
.table-preview tbody tr:nth-child(even) {
  background: #ece7d9;
}

@media (max-width: 640px) {
  .control-label {
    min-width: 100%;
  }
  .control-row .btn {
    margin-left: 0;
  }
  .text-area {
    min-height: 180px;
  }
}