/* Keyword Merger tool */

.keyword-merger-page .form-textarea {
  padding: 0.75rem;
  font-size: 0.875rem;
  min-height: 140px;
}

.inputs-grid {
  display: grid;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.inputs-grid[data-cols="3"] { grid-template-columns: repeat(3, 1fr); }
.inputs-grid[data-cols="4"] { grid-template-columns: repeat(4, 1fr); }
.inputs-grid[data-cols="5"] { grid-template-columns: repeat(5, 1fr); }

.input-col { display: none; }
.input-col.visible { display: block; }

.input-col label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #718096;
  margin-bottom: 0.5rem;
}

.options-section {
  border-top: 1px solid #e2e8f0;
  padding-top: 1.25rem;
  margin-bottom: 1.25rem;
}

.options-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #20293b;
  margin-bottom: 1rem;
}

.option-block { margin-bottom: 1rem; }
.option-block:last-of-type { margin-bottom: 0; }

.option-label,
.format-label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #718096;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.option-btn {
  padding: 0.4rem 0.75rem;
  border: 1px solid #e2e8f0;
  border-radius: 0.4rem;
  background: #f8fafc;
  color: #4a5568;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}

.option-btn:hover { border-color: #cbd5e1; background: #f1f5f9; }

.option-btn.active {
  background: #20293b;
  border-color: #20293b;
  color: #fff;
}

.custom-input {
  width: 4rem;
  padding: 0.4rem 0.5rem;
  border: 1px solid #e2e8f0;
  border-radius: 0.4rem;
  font-size: 0.8rem;
  background: #fff;
  display: none;
}

.custom-input.visible { display: inline-block; }

.custom-input:focus {
  outline: none;
  border-color: #20293b;
  box-shadow: 0 0 0 2px rgba(32, 41, 59, 0.15);
}

.custom-field {
  margin-top: 0.5rem;
  display: none;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.custom-field.visible { display: flex; }

.custom-wrap-inputs .custom-input { width: 3.5rem; }
.custom-wrap-inputs .custom-input.visible { display: inline-block; }
.custom-wrap-sep { font-size: 0.75rem; color: #94a3b8; }

.custom-field-hint { font-size: 0.75rem; color: #94a3b8; }

.option-hint {
  font-size: 0.8rem;
  color: #94a3b8;
  margin: 1rem 0;
  line-height: 1.5;
}

.accordion-trigger.options-title {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  width: 100%;
  margin-bottom: 0;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  line-height: inherit;
  appearance: none;
}

.accordion-trigger.options-title:hover { opacity: 0.75; }
.accordion.open .accordion-trigger.options-title { margin-bottom: 1rem; }

.accordion-icon {
  width: 11px;
  height: 11px;
  flex-shrink: 0;
  color: #20293b;
  transition: transform 0.2s ease;
}

.accordion.open .accordion-icon { transform: rotate(90deg); }

.accordion-summary {
  font-size: 0.75rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  color: #94a3b8;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.accordion-summary::before {
  content: '·';
  margin: 0 0.35rem;
  color: #cbd5e1;
}

.accordion-panel { display: none; padding: 0; }
.accordion.open .accordion-panel { display: block; }

.format-block { margin-bottom: 1rem; }
.format-block:last-of-type { margin-bottom: 0; }

.format-preview { margin-top: 1rem; padding-top: 0; }

.format-preview-label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #718096;
  margin-bottom: 0.4rem;
}

.format-preview-value {
  display: block;
  font-size: 0.875rem;
  color: #20293b;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 0.4rem;
  padding: 0.6rem 0.75rem;
  word-break: break-all;
  font-family: ui-monospace, 'Cascadia Code', monospace;
}

.keyword-merger-page .actions--center {
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.count {
  font-size: 0.875rem;
  color: #718096;
  margin-bottom: 1rem;
}

.count strong { color: #20293b; }

.count-warning {
  font-size: 0.8rem;
  color: #c05621;
  background: #fffaf0;
  border: 1px solid #fbd38d;
  border-radius: 0.5rem;
  padding: 0.6rem 0.85rem;
  margin: 0 auto 1rem;
  max-width: 32rem;
  line-height: 1.5;
}

.count-warning.hidden { display: none; }

.output-section { margin-top: 0.5rem; }

.keyword-merger-page .output-header { margin-bottom: 0.5rem; }

.output-textarea {
  width: 100%;
  min-height: 180px;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: #2d3748;
  resize: vertical;
  line-height: 1.6;
}

.output-textarea:focus {
  outline: none;
  border-color: #20293b;
  box-shadow: 0 0 0 3px rgba(32, 41, 59, 0.15);
  background: #fff;
}

@media (max-width: 900px) {
  .inputs-grid[data-cols="4"],
  .inputs-grid[data-cols="5"] { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .inputs-grid { grid-template-columns: 1fr !important; }
  .accordion-summary { display: none; }
}