/* ========== UUID Generator Shared Tool CSS ========== */
/* ========== UUID Generator Tool Page ========== */
.tool-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

.tool-header {
  text-align: center;
  margin-bottom: 24px;
}

.tool-header h1 {
  font-size: 32px;
  font-weight: 800;
  color: var(--color-heading);
  margin-bottom: 8px;
}

.tool-header .tool-desc {
  font-size: 16px;
  color: var(--color-muted);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Toolbar */
.tool-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 16px;
  padding: 16px;
  background: var(--color-bg-card);
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.tool-btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.tool-btn-primary:hover {
  background: #1d4ed8;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37,99,235,0.3);
}

.tool-btn-secondary {
  background: #10b981;
  color: #fff;
}

.tool-btn-secondary:hover {
  background: #059669;
}

.tool-btn-outline {
  background: #fff;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.tool-btn-outline:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-primary);
}

.tool-btn-danger {
  background: #ef4444;
  color: #fff;
}

.tool-btn-danger:hover {
  background: #dc2626;
}

.tool-btn-purple {
  background: #8b5cf6;
  color: #fff;
}

.tool-btn-purple:hover {
  background: #7c3aed;
  transform: translateY(-1px);
}

/* Options bar */
.options-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 16px;
  padding: 12px 16px;
  background: var(--color-bg-card);
  border-radius: 8px;
  border: 1px solid var(--color-border);
}

.option-group {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text);
}

.option-group label {
  color: var(--color-muted);
  font-weight: 500;
}

.option-group select {
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 14px;
  background: #fff;
  cursor: pointer;
  color: var(--color-text);
}

.option-group select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.option-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text);
  cursor: pointer;
  user-select: none;
}

.option-toggle input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* Main editor area */
/* Two-column layout for 1920×1080 wide screens */
.uuid-two-col {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 24px;
  align-items: start;
}

.uuid-col-left {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.uuid-col-right {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tool-editor {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.editor-panel {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
}

.editor-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
}

.editor-panel-header h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-heading);
}

.editor-panel-header .panel-actions {
  display: flex;
  gap: 8px;
}

.panel-btn {
  padding: 6px 12px;
  font-size: 13px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: #fff;
  color: var(--color-text);
  cursor: pointer;
  transition: all 0.2s;
}

.panel-btn:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-primary);
}

.panel-btn.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* Single UUID Display */
.single-uuid-display {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px;
  background: #ffffff;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 20px;
  font-weight: 700;
  color: #1f2937;
  letter-spacing: 0.5px;
  word-break: break-all;
  min-height: 64px;
}

.single-uuid-display .uuid-refresh-btn {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #eef2f7;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  color: #1f2937;
  font-size: 16px;
  transition: all 0.2s;
}

.single-uuid-display .uuid-refresh-btn:hover {
  background: #dbeafe;
  transform: rotate(180deg);
}

/* Multi-format output */
.multi-format-output {
  padding: 16px;
  background: #ffffff;
}

.format-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  padding: 8px 12px;
  background: #f9fafb;
  border-radius: 6px;
}

.format-row:last-child {
  margin-bottom: 0;
}

.format-label {
  flex-shrink: 0;
  width: 72px;
  font-size: 12px;
  font-weight: 600;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.format-value {
  flex: 1;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 13px;
  color: #1f2937;
  word-break: break-all;
  line-height: 1.5;
}

.format-copy {
  flex-shrink: 0;
  padding: 4px 10px;
  font-size: 12px;
  background: #eef2f7;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  color: #6b7280;
  cursor: pointer;
  transition: all 0.2s;
}

.format-copy:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* Batch results table */
.batch-section {
  margin-top: 16px;
}

.batch-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 8px 8px 0 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-heading);
}

.batch-header .batch-actions {
  display: flex;
  gap: 8px;
}

.batch-body {
  max-height: 400px;
  overflow-y: auto;
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 10px 10px;
}

.batch-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.batch-table th {
  position: sticky;
  top: 0;
  background: #f9fafb;
  padding: 10px 16px;
  text-align: left;
  font-weight: 600;
  color: var(--color-muted);
  border-bottom: 1px solid var(--color-border);
  font-size: 13px;
}

.batch-table td {
  padding: 10px 16px;
  border-bottom: 1px solid #f3f4f6;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 13px;
  color: var(--color-text);
  word-break: break-all;
}

.batch-table tr:last-child td {
  border-bottom: none;
}

.batch-table tr:hover {
  background: var(--color-bg-hover);
}

.batch-table td:first-child {
  width: 40px;
  color: var(--color-muted);
  text-align: center;
}

.batch-table td:last-child {
  width: 72px;
  text-align: center;
}

.batch-table .batch-copy-btn {
  padding: 4px 10px;
  font-size: 12px;
  background: #f3f4f6;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  color: var(--color-text);
  cursor: pointer;
  transition: all 0.2s;
}

.batch-table .batch-copy-btn:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* Empty state */
.empty-state {
  padding: 40px 20px;
  text-align: center;
  color: var(--color-muted);
  font-size: 15px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg-card);
}

.empty-state .empty-icon {
  font-size: 48px;
  margin-bottom: 12px;
  opacity: 0.4;
}

.empty-state .empty-hint {
  font-size: 14px;
  margin-top: 8px;
}

/* Stats bar */
.stats-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  padding: 12px 16px;
  background: var(--color-bg-card);
  border-radius: 8px;
  border: 1px solid var(--color-border);
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--color-text);
  align-items: center;
}

.stats-bar .stat-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.stats-bar .stat-label {
  color: var(--color-muted);
}

.stats-bar .stat-value {
  font-weight: 600;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

/* Validation section */
.validator-section {
  padding: 20px;
  margin-bottom: 16px;
  background: var(--color-bg-card);
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

.validator-section h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 12px;
}

.validator-row {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.validator-row input {
  flex: 1;
  min-width: 240px;
  padding: 10px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 14px;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  background: #fff;
  color: var(--color-text);
  resize: none;
}

.validator-row input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.validator-result {
  margin-top: 12px;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.6;
  display: none;
}

.validator-result.show {
  display: block;
}

.validator-valid {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #16a34a;
}

.validator-invalid {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #dc2626;
}

/* Code snippets */
.code-snippets {
  margin-bottom: 16px;
  padding: 20px;
  background: var(--color-bg-card);
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

.code-snippets h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 16px;
}

.code-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}

.code-card {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
}

.code-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: #f3f4f6;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-heading);
  border-bottom: 1px solid var(--color-border);
}

.code-card-header .code-lang {
  display: flex;
  align-items: center;
  gap: 6px;
}

.code-card-body {
  padding: 12px;
  background: #ffffff;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 13px;
  color: #1f2937;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-all;
  min-height: 60px;
}

.code-copy-btn {
  padding: 3px 8px;
  font-size: 11px;
  background: #f3f4f6;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  color: #1f2937;
  cursor: pointer;
  transition: all 0.2s;
}

.code-copy-btn:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

/* Status */
.status-box {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 12px;
  font-size: 14px;
  display: none;
}

.status-box.show {
  display: block;
}

.status-success {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #16a34a;
}

.status-error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #dc2626;
}

.status-info {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  color: #1d4ed8;
}

/* Info section */
.tool-info {
  margin-top: 32px;
  padding: 24px;
  background: var(--color-bg-card);
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

.tool-info h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 16px;
}

.tool-info h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-heading);
  margin: 20px 0 12px;
}

.tool-info p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 12px;
}

.tool-info ul {
  margin: 0 0 16px 24px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text);
}

.tool-info li {
  margin-bottom: 6px;
}

.tool-info code {
  background: #f3f4f6;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  color: #be185d;
}

.tool-info .info-tip {
  padding: 12px 16px;
  background: #eff6ff;
  border-radius: 8px;
  color: #1e40af;
  margin-top: 16px;
}

/* Version table */
.version-table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 14px;
}

.version-table th,
.version-table td {
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  text-align: left;
}

.version-table th {
  background: var(--color-bg-card);
  font-weight: 600;
  color: var(--color-heading);
}

.version-table td {
  color: var(--color-text);
}

/* Progress spiner */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.spinner {
  display: inline-block;
  animation: spin 2s linear infinite;
}

/* Responsive */
@media (max-width: 900px) {
  .uuid-two-col {
    grid-template-columns: 1fr;
  }
  
  .code-grid {
    grid-template-columns: 1fr;
  }

  .single-uuid-display {
    font-size: 16px;
    padding: 16px;
  }
}

@media (max-width: 600px) {
  .tool-container {
    padding: 16px;
  }
  
  .tool-header h1 {
    font-size: 24px;
  }
  
  .tool-toolbar {
    padding: 12px;
    gap: 8px;
  }
  
  .tool-btn {
    padding: 8px 14px;
    font-size: 13px;
  }
  
  .options-bar {
    padding: 10px 12px;
    gap: 10px;
  }
  
  .single-uuid-display {
    font-size: 14px;
    padding: 14px;
    flex-direction: column;
    gap: 8px;
  }
  
  .validator-row {
    flex-direction: column;
  }
  
  .validator-row input {
    width: 100%;
  }

  .stats-bar {
    gap: 10px;
    font-size: 13px;
  }
}