@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700&display=swap');

:root {
  /* LIGHT EMERALD THEME (Default) - Crystal Clear High Contrast */
  --bg-primary: #f1f5f9;
  --bg-secondary: #ffffff;
  --sidebar-bg: rgba(255, 255, 255, 0.85);
  
  --glass-bg: rgba(0, 0, 0, 0.03);
  --glass-bg-hover: rgba(0, 0, 0, 0.06);
  --glass-border: rgba(0, 0, 0, 0.08);
  --glass-border-focus: rgba(16, 185, 129, 0.4);
  
  --input-bg: #ffffff;
  --input-text: #0f172a;
  
  --accent-primary: hsl(150, 65%, 34%); /* Deep Emerald Green for high readability */
  --accent-secondary: hsl(165, 70%, 30%);
  --accent-gradient: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  
  --text-main: #0f172a;
  --text-muted: #334155;
  --text-dark: #64748b;
  
  --success: #059669;
  --error: #e11d48;
  --warning: #d97706;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.06), 0 2px 10px -1px rgba(15, 23, 42, 0.04);
}

body.dark-theme {
  /* DARK EMERALD THEME - Cozy Slate */
  --bg-primary: #090b10;
  --bg-secondary: #121622;
  --sidebar-bg: rgba(18, 22, 34, 0.8);
  
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-bg-hover: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-focus: rgba(16, 185, 129, 0.5);
  
  --input-bg: rgba(0, 0, 0, 0.25);
  --input-text: #f8fafc;
  
  --accent-primary: hsl(150, 72%, 48%);
  --accent-secondary: hsl(165, 80%, 48%);
  --accent-gradient: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dark: #64748b;
  
  --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: 'Inter', sans-serif;
  overflow: hidden;
  height: 100vh;
  display: flex;
  background-image: 
    radial-gradient(at 10% 20%, rgba(16, 185, 129, 0.03) 0px, transparent 50%),
    radial-gradient(at 90% 80%, rgba(5, 150, 105, 0.02) 0px, transparent 50%);
  background-attachment: fixed;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.01);
}
::-webkit-scrollbar-thumb {
  background: var(--glass-border);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-dark);
}

/* App Layout Grid */
.app-container {
  display: grid;
  grid-template-columns: 320px 1fr;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

/* Sidebar Styling */
aside.sidebar {
  background: var(--sidebar-bg);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border-right: 1px solid var(--glass-border);
  padding: 24px;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow-y: auto;
  transition: background 0.3s ease;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 30px;
}

.brand h1 {
  font-family: 'Outfit', sans-serif;
  font-size: 20px;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}

/* Drag & Drop Upload Zone */
.upload-zone {
  border: 2px dashed var(--glass-border);
  border-radius: var(--radius-md);
  padding: 30px 20px;
  text-align: center;
  cursor: pointer;
  background: var(--glass-bg);
  transition: var(--transition);
  margin-bottom: 24px;
}

.upload-zone:hover {
  border-color: var(--accent-primary);
  background: var(--glass-bg-hover);
  transform: translateY(-2px);
}

.upload-zone svg {
  width: 38px;
  height: 38px;
  stroke: var(--accent-primary);
  margin-bottom: 12px;
}

.upload-zone p {
  font-size: 13px;
  color: var(--text-muted);
}

.upload-zone .highlight {
  color: var(--text-main);
  font-weight: 600;
}

/* Document List */
.doc-section-title {
  font-family: 'Outfit', sans-serif;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 12px;
  font-weight: 700;
}

.doc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex-grow: 1;
  overflow-y: auto;
}

.doc-item {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow);
}

.doc-item:hover, .doc-item.active {
  background: var(--glass-bg-hover);
  border-color: var(--accent-primary);
}

.doc-item.active {
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.12);
}

.delete-btn {
  background: transparent;
  border: none;
  color: var(--text-dark);
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.delete-btn:hover {
  background: rgba(244, 63, 94, 0.15);
  color: var(--error);
}

.doc-title {
  font-size: 13.5px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-main);
  display: block;
}

.doc-meta {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.doc-badge {
  background: rgba(16, 185, 129, 0.12);
  color: var(--accent-primary);
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 700;
}

.doc-badge.pending {
  background: rgba(245, 158, 11, 0.12);
  color: var(--warning);
}

/* Settings Box */
.settings-box {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: var(--shadow);
}

.settings-box h3 {
  font-family: 'Outfit', sans-serif;
  font-size: 13px;
  margin-bottom: 6px;
  color: var(--text-main);
  font-weight: 700;
}

.input-field {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--glass-border);
  color: var(--input-text);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  transition: var(--transition);
}

.input-field:focus {
  outline: none;
  border-color: var(--accent-primary);
}

/* Main Workspace */
main.workspace {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  background: rgba(10, 11, 16, 0.2);
}

/* Welcome Screen */
.welcome-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex-grow: 1;
  text-align: center;
  padding: 40px;
}

.welcome-screen svg {
  width: 80px;
  height: 80px;
  stroke: var(--accent-primary);
  margin-bottom: 24px;
  opacity: 0.8;
}

.welcome-screen h2 {
  font-family: 'Outfit', sans-serif;
  font-size: 28px;
  margin-bottom: 12px;
  font-weight: 600;
}

.welcome-screen p {
  color: var(--text-muted);
  max-width: 500px;
  line-height: 1.6;
}

/* Editor Workspace */
.editor-workspace {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  height: 100%;
  overflow: hidden;
}

/* Header bar */
.work-header {
  height: 70px;
  border-bottom: 1px solid var(--glass-border);
  padding: 0 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--sidebar-bg);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
}

.work-title-group h2 {
  font-family: 'Outfit', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
}

.work-title-group p {
  font-size: 12px;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  gap: 12px;
}

.btn {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow);
}

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

.btn-primary {
  background: var(--accent-gradient);
  border: none;
  color: #ffffff;
}

.btn-primary:hover {
  opacity: 0.95;
  transform: translateY(-1px);
}

/* Editor Grid split */
.editor-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  flex-grow: 1;
  overflow: hidden;
}

/* Panes Styling */
.pane {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.pane:first-child {
  border-right: 1px solid var(--glass-border);
}

.pane-header {
  padding: 14px 24px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pane-header h3 {
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 700;
}

.pane-body {
  flex-grow: 1;
  padding: 24px;
  overflow-y: auto;
  position: relative;
  background: var(--bg-secondary);
}

/* Text Editor Textarea & WYSIWYG Editor */
.markdown-editor, .wysiwyg-editor {
  width: 100%;
  height: 100%;
  background: transparent;
  border: none;
  resize: none;
  color: var(--text-main);
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  line-height: 1.75;
  outline: none;
  padding: 10px;
  min-height: 100%;
}

.wysiwyg-editor:focus {
  outline: none;
}

/* Rich Text Styles Inside Editor */
.wysiwyg-editor h1 {
  font-family: 'Outfit', sans-serif;
  font-size: 24px;
  color: var(--accent-primary);
  margin-top: 20px;
  margin-bottom: 12px;
  font-weight: 700;
}

.wysiwyg-editor h2 {
  font-family: 'Outfit', sans-serif;
  font-size: 20px;
  color: var(--text-main);
  margin-top: 18px;
  margin-bottom: 10px;
  font-weight: 600;
}

.wysiwyg-editor h3 {
  font-family: 'Outfit', sans-serif;
  font-size: 16.5px;
  color: var(--text-muted);
  margin-top: 14px;
  margin-bottom: 8px;
  font-weight: 600;
}

.wysiwyg-editor div, .wysiwyg-editor p {
  margin-bottom: 12px;
}

.wysiwyg-editor strong {
  color: var(--text-main);
  font-weight: 700;
}

/* Horizontal separator inside the editor */
.wysiwyg-editor hr {
  border: none;
  border-top: 2px solid var(--glass-border);
  margin: 20px 0;
  background: linear-gradient(90deg, var(--accent-primary), transparent);
  height: 2px;
  opacity: 0.5;
}


/* WYSIWYG Toolbar styling */
.wysiwyg-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  background: var(--bg-primary);
  padding: 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  margin-top: 4px;
}

.tool-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  padding: 5px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
}

.tool-btn:hover {
  background: var(--glass-bg-hover);
  color: var(--text-main);
  border-color: var(--accent-primary);
}

.tool-btn.active {
  background: var(--accent-gradient);
  color: #ffffff;
}

/* Elegant Page Marker Divider */
.page-marker {
  background: linear-gradient(90deg, rgba(16, 185, 129, 0.08) 0%, rgba(5, 150, 105, 0.02) 100%);
  color: var(--accent-primary);
  border-left: 3px solid var(--accent-primary);
  padding: 6px 14px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 0 6px 6px 0;
  margin: 24px 0 16px 0;
  user-select: none;
  -webkit-user-select: none;
}


/* Translation settings panel */
.translation-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  height: 100%;
  justify-content: center;
  align-items: center;
  padding: 40px;
}

.translation-card {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 30px;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
}

.translation-card h4 {
  font-family: 'Outfit', sans-serif;
  font-size: 18px;
  margin-bottom: 20px;
  text-align: center;
}

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

.form-group label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

/* Radio Group styling */
.radio-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.radio-btn {
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  border-radius: var(--radius-sm);
  padding: 12px;
  cursor: pointer;
  text-align: center;
  transition: var(--transition);
}

.radio-btn input {
  display: none;
}

.radio-btn span {
  display: block;
  font-size: 12px;
  font-weight: 600;
}

.radio-btn .desc {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 4px;
  font-weight: normal;
}

.radio-btn:hover {
  background: var(--glass-bg-hover);
}

.radio-btn.selected {
  border-color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.1);
}

/* Spinner */
.spinner {
  width: 30px;
  height: 30px;
  border: 3px solid rgba(255,255,255,0.05);
  border-radius: 50%;
  border-top-color: var(--accent-primary);
  animation: spin 1s linear infinite;
  margin: 0 auto 12px;
}

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

.loading-container {
  text-align: center;
  color: var(--text-muted);
}