/* Block Letter Generator. Scoped to #tool-root #blg */

#tool-root #blg {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  box-sizing: border-box;
}

#tool-root #blg [hidden] {
  display: none !important;
}

#tool-root #blg .blg-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  box-sizing: border-box;
}

#tool-root #blg .blg-mt {
  margin-top: 14px;
}

/* Header & Inputs */
#tool-root #blg .blg-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  margin-bottom: 8px;
  gap: 8px;
}

#tool-root #blg .blg-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.85;
  margin-bottom: 6px;
}

#tool-root #blg .blg-hint {
  font-size: 12px;
  opacity: 0.65;
}

#tool-root #blg .blg-textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 12px;
  font-family: monospace, ui-monospace, sans-serif;
  font-size: 15px;
  line-height: 1.4;
  border-radius: 8px;
  resize: vertical;
  min-height: 72px;
}

/* Grid Layouts */
#tool-root #blg .blg-grid {
  display: grid;
  gap: 14px;
}

#tool-root #blg .blg-grid-cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

#tool-root #blg .blg-grid-cols-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

@media (max-width: 820px) {
  #tool-root #blg .blg-grid-cols-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  #tool-root #blg .blg-grid-cols-2,
  #tool-root #blg .blg-grid-cols-4 {
    grid-template-columns: minmax(0, 1fr);
  }
}

#tool-root #blg .blg-field {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

#tool-root #blg .blg-select {
  width: 100%;
  box-sizing: border-box;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 13.5px;
}

#tool-root #blg .blg-range {
  width: 100%;
  margin-top: 6px;
  cursor: pointer;
}

#tool-root #blg .blg-toggle-group {
  display: flex;
  gap: 16px;
  align-items: center;
  height: 38px;
}

#tool-root #blg .blg-checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  cursor: pointer;
  user-select: none;
}

#tool-root #blg .blg-checkbox-label input[type="checkbox"] {
  cursor: pointer;
  width: 16px;
  height: 16px;
}

/* Preview Section */
#tool-root #blg .blg-preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
}

#tool-root #blg .blg-preview-title {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

#tool-root #blg .blg-layer-tabs {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

#tool-root #blg .blg-btn-group {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

#tool-root #blg button.blg-tab-btn {
  background: var(--surface-2);
  color: var(--fg);
  border: none;
  border-right: 1px solid var(--line);
  padding: 6px 12px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  border-radius: 0;
  transition: background 0.15s ease;
}

#tool-root #blg button.blg-tab-btn:last-child {
  border-right: none;
}

#tool-root #blg button.blg-tab-btn:hover {
  background: var(--surface-3, rgba(127, 127, 127, 0.15));
}

#tool-root #blg button.blg-tab-btn.blg-tab-active {
  background: var(--grass-bright, #4fa83d);
  color: #ffffff;
  font-weight: 700;
}

#tool-root #blg .blg-canvas-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  background: #181a1f;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  overflow-x: auto;
  box-sizing: border-box;
}

#tool-root #blg canvas#blg-canvas {
  display: block;
  max-width: 100%;
  height: auto;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

/* Statistics Grid */
#tool-root #blg .blg-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

@media (max-width: 820px) {
  #tool-root #blg .blg-stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  #tool-root #blg .blg-stats-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

#tool-root #blg .blg-stat-box {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-sizing: border-box;
}

#tool-root #blg .blg-stat-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.7;
}

#tool-root #blg .blg-stat-val {
  font-size: 18px;
  font-weight: 800;
  color: var(--fg);
}

#tool-root #blg .blg-stat-sub {
  font-size: 12px;
  opacity: 0.65;
}

/* Wall Rows Guide */
#tool-root #blg .blg-details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-sizing: border-box;
  overflow: hidden;
}

#tool-root #blg .blg-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  cursor: pointer;
  user-select: none;
  font-weight: 700;
  font-size: 13.5px;
}

#tool-root #blg .blg-summary:hover {
  background: var(--surface-2, rgba(127, 127, 127, 0.05));
}

#tool-root #blg .blg-summary-badge {
  font-size: 11.5px;
  padding: 2px 8px;
  background: var(--surface-2, rgba(127, 127, 127, 0.15));
  border-radius: 12px;
  opacity: 0.8;
}

#tool-root #blg .blg-row-list {
  max-height: 280px;
  overflow-y: auto;
  border-top: 1px solid var(--line);
  padding: 8px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#tool-root #blg .blg-row-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px dashed rgba(127, 127, 127, 0.15);
  font-size: 12.5px;
}

#tool-root #blg .blg-row-item:last-child {
  border-bottom: none;
}

#tool-root #blg .blg-row-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 140px;
}

#tool-root #blg .blg-row-num {
  font-weight: 700;
}

#tool-root #blg .blg-row-counts {
  font-size: 11.5px;
  opacity: 0.7;
}

#tool-root #blg .blg-row-runs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  justify-content: flex-end;
}

#tool-root #blg .blg-run-pill {
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}

#tool-root #blg .blg-run-letter {
  background: rgba(234, 229, 222, 0.2);
  color: var(--fg);
  border: 1px solid rgba(234, 229, 222, 0.3);
}

#tool-root #blg .blg-run-shadow {
  background: rgba(8, 10, 15, 0.4);
  color: var(--fg);
  border: 1px solid rgba(127, 127, 127, 0.3);
}

#tool-root #blg .blg-run-empty,
#tool-root #blg .blg-guide-empty {
  opacity: 0.55;
  font-style: italic;
}

/* Export Section */
#tool-root #blg .blg-export-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
}

#tool-root #blg .blg-export-title {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

#tool-root #blg .blg-export-options {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

#tool-root #blg .blg-inline-field {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
}

#tool-root #blg .blg-select-sm {
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 12.5px;
}

#tool-root #blg .blg-pos-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
}

#tool-root #blg .blg-pos-input {
  width: 58px;
  padding: 4px 6px;
  border-radius: 6px;
  font-size: 12.5px;
}

#tool-root #blg .blg-commands-area {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 12px;
  font-family: monospace, ui-monospace, sans-serif;
  font-size: 13px;
  line-height: 1.4;
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--fg);
  resize: vertical;
  min-height: 120px;
}

#tool-root #blg .blg-actions-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 12px;
}

#tool-root #blg .blg-btn {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--fg);
  transition: all 0.15s ease;
}

#tool-root #blg .blg-btn:hover {
  background: var(--surface-3, rgba(127, 127, 127, 0.15));
}

#tool-root #blg .blg-btn-primary {
  background: var(--grass-bright, #4fa83d);
  color: #ffffff;
  border-color: var(--grass-deep, #3d8830);
  font-weight: 700;
}

#tool-root #blg .blg-btn-primary:hover {
  opacity: 0.92;
}

#tool-root #blg .blg-toast {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--grass-bright, #4fa83d);
}

#tool-root #blg .blg-help {
  font-size: 13px;
  line-height: 1.5;
  opacity: 0.8;
  margin-top: 4px;
}

@media (max-width: 480px) {
  #tool-root #blg .blg-card {
    padding: 12px;
  }
  #tool-root #blg .blg-btn-group {
    display: flex;
    flex-direction: column;
    width: 100%;
  }
  #tool-root #blg button.blg-tab-btn {
    border-right: none;
    border-bottom: 1px solid var(--line);
    text-align: center;
    width: 100%;
  }
  #tool-root #blg button.blg-tab-btn:last-child {
    border-bottom: none;
  }
  #tool-root #blg .blg-row-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  #tool-root #blg .blg-row-meta {
    min-width: 0;
  }
  #tool-root #blg .blg-row-runs {
    justify-content: flex-start;
  }
  #tool-root #blg .blg-actions-row .blg-btn {
    width: 100%;
    text-align: center;
  }
}