/* Chatbot Studio Builder & Tabs Layout */
.builder-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: 24px;
  align-items: start;
  width: 100%;
  max-width: 100%;
}

.builder-main {
  background: #ffffff;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  min-width: 0;
  width: 100%;
  overflow: hidden;
}

.builder-tabs {
  display: flex;
  overflow-x: auto;
  border-bottom: 1px solid var(--slate-200);
  padding: 0 12px;
  background: var(--slate-50);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.builder-tabs::-webkit-scrollbar {
  height: 4px;
}

.builder-tabs::-webkit-scrollbar-thumb {
  background: var(--slate-300);
  border-radius: 4px;
}

.tab-btn {
  padding: 14px 16px;
  border: none;
  background: transparent;
  color: var(--slate-600);
  font-weight: 500;
  font-size: 13.5px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: all 0.15s;
  flex-shrink: 0;
}

.tab-btn:hover {
  color: var(--slate-900);
}

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
  background: #ffffff;
}

.builder-panel {
  display: none;
  padding: 24px;
  min-width: 0;
  width: 100%;
}

.builder-panel.active {
  display: block;
}

/* Forms & Controls */
.form-group {
  margin-bottom: 20px;
  width: 100%;
  min-width: 0;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--slate-700);
  margin-bottom: 6px;
  word-break: break-word;
}

.form-help {
  font-size: 12px;
  color: var(--slate-500);
  margin-top: 4px;
  line-height: 1.4;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  padding: 9px 12px;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--slate-800);
  background: #ffffff;
  outline: none;
  transition: border-color 0.15s;
  min-width: 0;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-focus);
}

.form-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
  width: 100%;
  min-width: 0;
}

/* Live Preview Column */
.builder-preview {
  position: sticky;
  top: 84px;
  background: #ffffff;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
  width: 100%;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--slate-100);
  padding-bottom: 12px;
  gap: 8px;
}

.preview-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--slate-900);
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.preview-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--success);
  flex-shrink: 0;
}

.preview-container {
  height: 520px;
  max-height: calc(100vh - 180px);
  min-height: 400px;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  background: #f8fafc;
  position: relative;
  overflow: hidden;
  width: 100%;
}

/* Knowledge Base Table & Items */
.kb-item-card {
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 12px;
  background: #ffffff;
  min-width: 0;
}

.kb-item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 8px;
  gap: 10px;
}

.kb-question {
  font-weight: 600;
  font-size: 14px;
  color: var(--slate-900);
  word-break: break-word;
  min-width: 0;
}

.kb-answer {
  font-size: 13px;
  color: var(--slate-600);
  margin-bottom: 8px;
  word-break: break-word;
}

.kb-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.kb-tag {
  background: var(--slate-100);
  color: var(--slate-600);
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
  word-break: break-all;
}

/* Snippet Code Box */
.code-box {
  background: var(--slate-900);
  color: #e2e8f0;
  border-radius: var(--radius-sm);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  overflow-x: auto;
  position: relative;
  margin-top: 10px;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.code-box pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}