/* Claude Themed CSS Variable Definitions */
:root {
  --bg-primary: #fbfaf7;
  --bg-secondary: #f3f0e8;
  --border-color: #dcd7cc;
  --text-primary: #191919;
  --text-secondary: #5e5a52;
  --accent-primary: #d9775f;
  --accent-hover: #c0563f;
  --accent-light: rgba(217, 119, 95, 0.15);
  --btn-secondary-bg: #e8e4db;
  --btn-secondary-hover: #dbd5c9;
  --btn-text-light: #191919;
  --divider-hover: #c0563f;
  --divider-active: #a84833;
}

[data-theme="dark"] {
  --bg-primary: #1c1a17;
  --bg-secondary: #252320;
  --border-color: #3e3a35;
  --text-primary: #e6e3dd;
  --text-secondary: #b5b0a7;
  --accent-primary: #e07b65;
  --accent-hover: #f09581;
  --accent-light: rgba(224, 123, 101, 0.2);
  --btn-secondary-bg: #2d2a27;
  --btn-secondary-hover: #3d3935;
  --btn-text-light: #e6e3dd;
  --divider-hover: #e07b65;
  --divider-active: #f09581;
}

/* Reset and Core Layout */
* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  display: flex;
  flex-direction: column;
}

/* Header Design - Claude Minimalist style */
.app-header {
  height: 56px;
  background-color: var(--bg-secondary);
  border-bottom: 1.5px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 24px;
  flex-shrink: 0;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-logo-img {
  width: 24px;
  height: 24px;
  border-radius: 4px;
}

.header-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.015em;
  margin: 0;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Buttons */
.btn {
  font-size: 0.85rem;
  font-weight: 550;
  padding: 6px 14px;
  border-radius: 6px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
  background-color: var(--accent-primary);
  color: #ffffff;
  border-color: var(--accent-primary);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  box-shadow: 0 2px 8px var(--accent-light);
}

.btn-secondary {
  background-color: var(--btn-secondary-bg);
  color: var(--btn-text-light);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background-color: var(--btn-secondary-hover);
  border-color: var(--border-color);
}

/* Toggle Switches */
.toggle-group {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: 8px;
  border-left: 1px solid var(--border-color);
  padding-left: 16px;
}

.toggle-switch {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.toggle-switch input {
  display: none;
}

.toggle-slider {
  width: 32px;
  height: 18px;
  background-color: var(--btn-secondary-bg);
  border: 1px solid var(--border-color);
  border-radius: 9px;
  position: relative;
  transition: all 0.25s ease;
}

.toggle-slider::before {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  left: 2px;
  bottom: 2px;
  background-color: var(--text-secondary);
  border-radius: 50%;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.toggle-switch input:checked + .toggle-slider {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(14px);
  background-color: #ffffff;
}

.toggle-text {
  transition: color 0.2s ease;
}

.toggle-switch:hover .toggle-text {
  color: var(--text-primary);
}

/* Main Split Layout Container */
.split-container {
  display: flex;
  flex: 1;
  overflow: hidden;
  width: 100%;
  background-color: var(--bg-primary);
}

.editor-pane, .preview-pane {
  height: 100%;
  overflow: hidden;
}

.column {
  width: 50%;
  display: flex;
  flex-direction: column;
}

#editor-wrapper, #preview-wrapper {
  height: 100%;
  width: 100%;
}

#editor {
  height: 100%;
  width: 100%;
}

#preview {
  overflow-y: auto;
  padding: 24px 32px;
  background-color: var(--bg-primary);
}

/* Splitter / Resizer bar */
.split-divider {
  width: 3px;
  background-color: var(--border-color);
  cursor: col-resize;
  z-index: 10;
  transition: background-color 0.2s ease;
}

.split-divider:hover {
  background-color: var(--divider-hover);
}

.split-divider.active {
  background-color: var(--divider-active);
  width: 3px;
}

/* Footer Section */
.app-footer {
  height: 38px;
  border-top: 1.5px solid var(--border-color);
  background-color: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.footer-content p {
  margin: 0;
}

.footer-link {
  color: var(--accent-primary);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.15s ease;
}

.footer-link:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* Monaco Editor customization to fit Claude theme background */
.monaco-editor, .monaco-editor .margin {
  background-color: var(--bg-primary) !important;
}

/* Markdown Rendering Custom Styles */
.markdown-body .mermaid {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  margin: 16px 0;
  display: flex;
  justify-content: center;
}

.markdown-body .mermaid-error {
  color: #cf222e;
  border: 1px solid #ff858b;
  background-color: rgba(255, 133, 139, 0.1);
  padding: 12px;
  border-radius: 6px;
  font-size: 0.9rem;
  white-space: pre-wrap;
}

[data-theme="dark"] .markdown-body .mermaid-error {
  color: #ff858b;
  border-color: #cf222e;
  background-color: rgba(207, 34, 46, 0.1);
}

/* Hide raw layout details when printing or exporting */
@media print {
  .app-header, .split-divider, .app-footer {
    display: none !important;
  }
  .preview-pane {
    width: 100% !important;
    height: auto !important;
  }
}