* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: #f1f5f9;
  color: #334155;
  height: 100vh;
  overflow: hidden;
}

.app {
  display: flex;
  height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background: #0f172a;
  color: #e2e8f0;
  display: flex;
  flex-direction: column;
  padding: 20px;
}

.sidebar h1 {
  font-size: 20px;
  margin-bottom: 24px;
  color: #fff;
}

.sidebar nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.nav-btn {
  padding: 10px 14px;
  border: none;
  border-radius: 6px;
  background: #1e293b;
  color: #e2e8f0;
  cursor: pointer;
  font-size: 14px;
  text-align: left;
  transition: background 0.2s;
}

.nav-btn:hover {
  background: #334155;
}

.nav-btn.primary {
  background: #2563eb;
  color: #fff;
}

.nav-btn.primary:hover {
  background: #1d4ed8;
}

.template-list {
  flex: 1;
  overflow-y: auto;
}

.template-list-item {
  padding: 10px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  margin-bottom: 4px;
  transition: background 0.2s;
}

.template-list-item:hover {
  background: #1e293b;
}

.template-list-item.active {
  background: #2563eb;
}

.template-list-item .name {
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.template-list-item .date {
  font-size: 11px;
  color: #94a3b8;
  margin-top: 2px;
}

.template-list-item .indicators {
  font-size: 10px;
  margin-top: 4px;
  display: flex;
  gap: 6px;
}

.template-list-item .indicators .badge {
  background: #334155;
  color: #94a3b8;
  padding: 1px 5px;
  border-radius: 3px;
}

.template-list-item.active .indicators .badge {
  background: #1d4ed8;
  color: #dbeafe;
}

/* Main */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
}

.view {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}

.view.hidden {
  display: none;
}

/* Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 20px;
  background: #fff;
  border-bottom: 1px solid #e2e8f0;
}

.name-input {
  width: 220px;
  padding: 8px 12px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: 14px;
}

.desc-input {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: 14px;
}

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

.btn {
  padding: 8px 16px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
}

.btn:hover {
  background: #f8fafc;
}

.btn.primary {
  background: #2563eb;
  color: #fff;
  border-color: #2563eb;
}

.btn.primary:hover {
  background: #1d4ed8;
}

.btn-small {
  padding: 4px 10px;
  font-size: 12px;
}

/* Editor Layout */
.editor-layout {
  display: flex;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

.panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
}

.code-panel {
  width: 100%;
  border-right: none;
}

/* Options bar */
.options-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 20px;
  background: #fff;
  border-bottom: 1px solid #e2e8f0;
  flex-wrap: wrap;
}

.options-bar .option-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.options-bar .option-group label {
  font-size: 12px;
  color: #64748b;
  font-weight: 500;
}

.options-bar .option-group select {
  padding: 5px 8px;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
  font-size: 12px;
  background: #fff;
}

.options-bar .option-group.margins {
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}

.options-bar .margin-inputs {
  display: flex;
  gap: 4px;
}

.options-bar .margin-inputs input {
  width: 46px;
  padding: 4px 6px;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
  font-size: 11px;
  text-align: center;
}

.tabs {
  display: flex;
  background: #fff;
  border-bottom: 1px solid #e2e8f0;
  overflow-x: auto;
  flex-shrink: 0;
}

.tab-btn {
  padding: 10px 16px;
  border: none;
  background: #fff;
  cursor: pointer;
  font-size: 13px;
  color: #64748b;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
  white-space: nowrap;
}

.tab-btn:hover {
  color: #334155;
}

.tab-btn.active {
  color: #2563eb;
  border-bottom-color: #2563eb;
  font-weight: 600;
}

.tab-content {
  flex: 1;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.code-editor {
  width: 100%;
  height: 100%;
  border: none;
  padding: 16px;
  font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.5;
  resize: none;
  outline: none;
  background: #fff;
  color: #334155;
}

.code-editor.hidden {
  display: none;
}

/* Editor Wrapper (textarea + rich editor toggle) */
.editor-wrapper {
  padding: 0;
  display: flex;
  flex-direction: column;
  flex: 1;
  width: 100%;
  min-height: 0;
}

.editor-wrapper.hidden {
  display: none;
}

.editor-toolbar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 8px 12px;
  background: #f8fafc;
  border-bottom: 1px solid #e2e8f0;
  width: 100%;
  overflow: hidden;
}

.editor-toolbar .btn {
  padding: 5px 12px;
  font-size: 12px;
  max-width: 100%;
  white-space: normal;
}

.editor-wrapper textarea {
  flex: 1;
  height: 100%;
  border: none;
  overflow: auto;
}

.rich-editor-wrapper {
  flex: 1;
  height: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 0;
  position: relative;
}

.rich-editor-wrapper .sun-editor {
  position: relative;
  flex: 1;
  min-height: 0;
  border: none;
  border-radius: 0;
  display: flex !important;
  flex-direction: column;
  overflow: hidden;
}

.rich-editor-wrapper .sun-editor .se-container {
  display: flex;
  flex: 1;
  min-height: 0;
  flex-direction: column;
  height: 100% !important;
  overflow: hidden;
}

.rich-editor-wrapper .sun-editor .se-toolbar {
  flex-shrink: 0;
}

.rich-editor-wrapper .sun-editor .se-wrapper {
  flex: 1;
  min-height: 0;
  overflow: hidden !important;
  height: 100% !important;
}

.rich-editor-wrapper .sun-editor .se-wrapper .se-wrapper-inner,
.rich-editor-wrapper .sun-editor .se-wrapper .sun-editor-editable {
  min-height: 100%;
}

.rich-editor-wrapper .sun-editor .se-wrapper .sun-editor-editable {
  flex: 1 1 auto;
  height: 100% !important;
  overflow-y: auto !important;
  overflow-x: hidden;
}

.rich-editor-wrapper .sun-editor .sun-editor-editable .__se__float-left {
  float: none !important;
  display: block !important;
  width: fit-content !important;
  max-width: 100%;
  margin-left: 0 !important;
  margin-right: auto !important;
  clear: both;
}

.rich-editor-wrapper .sun-editor .sun-editor-editable .__se__float-right {
  float: none !important;
  display: block !important;
  width: fit-content !important;
  max-width: 100%;
  margin-left: auto !important;
  margin-right: 0 !important;
  clear: both;
}

.rich-editor-wrapper .sun-editor .sun-editor-editable .__se__float-center {
  float: none !important;
  display: block !important;
  width: fit-content !important;
  max-width: 100%;
  margin-left: auto !important;
  margin-right: auto !important;
  clear: both;
}

.rich-editor-wrapper .sun-editor .sun-editor-editable .__se__float-none {
  float: none !important;
  display: block !important;
  width: fit-content !important;
  max-width: 100%;
  margin-left: auto !important;
  margin-right: auto !important;
  clear: both;
}

.rich-editor-container .sun-editor {
  border: none;
  border-radius: 0;
}

/* Watermark Panel */
.watermark-panel {
  padding: 20px;
  overflow-y: auto;
  background: #fff;
}

.watermark-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 13px;
}

.watermark-row label {
  width: 100px;
  color: #475569;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.watermark-row input[type="text"] {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: 13px;
}

.watermark-row input[type="range"] {
  flex: 1;
}

.watermark-row input[type="color"] {
  width: 50px;
  height: 32px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  cursor: pointer;
}

.watermark-row input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.watermark-row input[type="file"] {
  flex: 1;
  font-size: 12px;
}

.watermark-row .hint {
  font-size: 11px;
  color: #94a3b8;
}

.radio-group {
  display: flex;
  gap: 16px;
}

.radio-group label {
  width: auto;
  font-weight: 400;
  cursor: pointer;
}

.image-preview {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.image-preview img {
  max-width: 200px;
  max-height: 150px;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  background: #f8fafc;
}

/* Preview Panel */
.preview-panel {
  background: #f8fafc;
}

.preview-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: #fff;
  border-bottom: 1px solid #e2e8f0;
  flex-wrap: wrap;
}

.preview-mode {
  display: flex;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid #cbd5e1;
}

.mode-btn {
  padding: 6px 14px;
  border: none;
  background: #f8fafc;
  cursor: pointer;
  font-size: 12px;
  color: #64748b;
  transition: all 0.2s;
}

.mode-btn:hover {
  background: #e2e8f0;
}

.mode-btn.active {
  background: #2563eb;
  color: #fff;
}

.preview-options {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
}

.option-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.option-group label {
  font-size: 11px;
  color: #64748b;
  font-weight: 500;
}

.option-group select {
  padding: 5px 8px;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
  font-size: 12px;
  background: #fff;
}

.option-group.margins {
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}

.margin-inputs {
  display: flex;
  gap: 4px;
}

.margin-inputs input {
  width: 46px;
  padding: 4px 6px;
  border: 1px solid #cbd5e1;
  border-radius: 4px;
  font-size: 11px;
  text-align: center;
}

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

.preview-actions .btn {
  padding: 6px 14px;
  font-size: 13px;
}

.preview-container {
  flex: 1;
  position: relative;
  overflow: hidden;
}

#preview-frame {
  width: 100%;
  height: 100%;
  border: none;
  background: #f8fafc;
}

.preview-loader {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255,255,255,0.9);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.preview-loader.hidden {
  display: none;
}

.preview-loader p {
  margin-top: 12px;
  font-size: 13px;
  color: #64748b;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid #e2e8f0;
  border-top-color: #2563eb;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* PDF Preview Modal */
.pdf-preview-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pdf-preview-modal.hidden {
  display: none;
}

.pdf-preview-content {
  background: #fff;
  border-radius: 8px;
  width: 92%;
  height: 92%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.pdf-preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
  border-bottom: 1px solid #e2e8f0;
  background: #fff;
}

.pdf-preview-header h3 {
  font-size: 16px;
  font-weight: 600;
  color: #334155;
}

.pdf-preview-body {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: #f8fafc;
}

#pdf-preview-frame {
  width: 100%;
  height: 100%;
  border: none;
}

/* List View */
#list-view {
  padding: 20px;
  overflow-y: auto;
}

#list-view h2 {
  margin-bottom: 20px;
}

.templates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.template-card {
  background: #fff;
  border-radius: 8px;
  padding: 20px;
  border: 1px solid #e2e8f0;
  transition: box-shadow 0.2s;
}

.template-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.template-card h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.template-card p {
  font-size: 13px;
  color: #64748b;
  margin-bottom: 12px;
}

.template-card .indicators {
  font-size: 11px;
  margin-bottom: 10px;
  display: flex;
  gap: 6px;
}

.template-card .indicators .badge {
  background: #f1f5f9;
  color: #64748b;
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid #e2e8f0;
}

.template-card .meta {
  font-size: 12px;
  color: #94a3b8;
  margin-bottom: 12px;
}

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

.card-actions .btn {
  padding: 6px 12px;
  font-size: 13px;
}

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

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

/* Docs View */
#docs-view {
  padding: 20px;
  overflow-y: auto;
}

#docs-view h2 {
  margin-bottom: 20px;
}

.docs-content {
  background: #fff;
  border-radius: 8px;
  padding: 20px;
  border: 1px solid #e2e8f0;
}

.docs-content h3 {
  margin: 20px 0 10px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid #e2e8f0;
}

.docs-content pre {
  background: #f8fafc;
  padding: 12px;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 13px;
  margin: 8px 0;
}

.docs-content code {
  font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
  background: #f1f5f9;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
}

.docs-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 13px;
}

.docs-content th,
.docs-content td {
  border: 1px solid #e2e8f0;
  padding: 10px;
  text-align: left;
}

.docs-content th {
  background: #f8fafc;
  font-weight: 600;
}

/* Delete confirmation modal */
.confirm-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.confirm-modal-overlay.hidden {
  display: none;
}

.confirm-modal {
  background: #fff;
  border-radius: 12px;
  padding: 28px 28px 22px;
  width: 360px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
  text-align: center;
}

.confirm-modal .confirm-icon {
  width: 48px;
  height: 48px;
  background: #fef2f2;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 22px;
}

.confirm-modal h3 {
  font-size: 16px;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 8px;
}

.confirm-modal p {
  font-size: 13px;
  color: #64748b;
  margin-bottom: 22px;
  line-height: 1.5;
}

.confirm-modal .confirm-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.confirm-modal .confirm-actions .btn {
  min-width: 100px;
}

/* Sidebar item delete button */
.template-list-item {
  position: relative;
}

.template-list-item .item-delete-btn {
  position: absolute;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  cursor: pointer;
  color: #94a3b8;
  font-size: 14px;
  padding: 4px 5px;
  border-radius: 4px;
  opacity: 0;
  transition: opacity 0.15s, color 0.15s, background 0.15s;
  line-height: 1;
}

.template-list-item:hover .item-delete-btn {
  opacity: 1;
}

.template-list-item .item-delete-btn:hover {
  color: #ef4444;
  background: rgba(239,68,68,0.1);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 20px;
  border-radius: 6px;
  color: #fff;
  font-size: 14px;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s;
  pointer-events: none;
  z-index: 1000;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.success {
  background: #16a34a;
}

.toast.error {
  background: #dc2626;
}

.toast.warning {
  background: #d97706;
}

/* CodeMirror */
.CodeMirror {
  flex: 1;
  min-height: 0;
  height: auto !important;
  font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.5;
  background: #fff;
  color: #334155;
}

.CodeMirror-gutters {
  background: #f8fafc;
  border-right: 1px solid #e2e8f0;
}

.CodeMirror-linenumber {
  color: #94a3b8;
  font-size: 12px;
}

.CodeMirror-cursor {
  border-left: 2px solid #2563eb;
}

.CodeMirror-selected {
  background: #dbeafe;
}

.CodeMirror-matchingbracket {
  color: #2563eb !important;
  font-weight: bold;
  outline: 1px solid #93c5fd;
  border-radius: 2px;
}

.CodeMirror-matchingtag {
  background: rgba(37, 99, 235, 0.1);
  outline: 1px solid #93c5fd;
}

/* Autocomplete hints */
.CodeMirror-hints {
  font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
  font-size: 13px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  z-index: 100;
}

.CodeMirror-hint {
  padding: 6px 12px;
  color: #334155;
  border-radius: 4px;
  max-width: 400px;
}

.CodeMirror-hint-active {
  background: #2563eb;
  color: #fff;
}