/* ==========================================================================
   Monaco AI IDE Pro v1.0 — Design System & CSS Token Framework
   ========================================================================== */

:root {
  /* Configurable Brand Color Tokens */
  --primary-color: #6366f1;
  --secondary-color: #a855f7;
  
  --accent-primary: var(--primary-color);
  --accent-secondary: var(--secondary-color);
  --accent-gradient: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  --accent-gradient-hover: linear-gradient(135deg, #4f46e5 0%, #9333ea 100%);
  
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;
  --accent-info: #38bdf8;
  
  /* Layout Dimensions */
  --header-height: 54px;
  --statusbar-height: 26px;
  --sidebar-width: 260px;
  --ai-panel-width: 320px;
  --tab-height: 36px;
  
  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  
  /* Shadows & Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-pill: 9999px;
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
}

/* Theme 1: Cyber Dark (Default) */
:root, [data-theme="cyber-dark"] {
  --bg-darkest: #070913;
  --bg-primary: #0b0f19;
  --bg-surface: #111827;
  --bg-card: #1f2937;
  --bg-card-hover: #374151;
  --bg-input: #111827;
  --border-color: rgba(255, 255, 255, 0.1);
  --border-glow: rgba(99, 102, 241, 0.4);
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
}

/* Theme 2: Monokai Dark */
[data-theme="monokai"] {
  --bg-darkest: #1e1f1c;
  --bg-primary: #272822;
  --bg-surface: #2d2e2a;
  --bg-card: #3e3d32;
  --bg-card-hover: #49483e;
  --bg-input: #1e1f1c;
  --border-color: rgba(255, 255, 255, 0.15);
  --border-glow: rgba(249, 38, 114, 0.4);
  --text-primary: #f8f8f2;
  --text-secondary: #cfcfc2;
  --text-muted: #75715e;
}

/* Theme 3: Light Theme */
[data-theme="light"] {
  --bg-darkest: #f8fafc;
  --bg-primary: #ffffff;
  --bg-surface: #f1f5f9;
  --bg-card: #e2e8f0;
  --bg-card-hover: #cbd5e1;
  --bg-input: #ffffff;
  --border-color: rgba(0, 0, 0, 0.12);
  --border-glow: rgba(99, 102, 241, 0.3);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
}

/* Reset & Global Settings */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body, html {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: var(--font-sans);
  background-color: var(--bg-darkest);
  color: var(--text-primary);
  line-height: 1.5;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.2);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* Master Layout Structure */
.ide-container {
  display: flex;
  flex-direction: column;
  width: 100vw;
  height: 100vh;
  background: var(--bg-darkest);
}

/* 1. TOP NAVBAR */
.ide-header {
  height: var(--header-height);
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 50;
  user-select: none;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: white;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.brand-title {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.badge-pro {
  font-size: 10px;
  font-weight: 800;
  background: var(--accent-gradient);
  color: white;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Mode Switcher Pills (Code | Split | Preview) */
.mode-switcher {
  display: flex;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 3px;
  border-radius: var(--radius-md);
  gap: 4px;
}

.mode-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.mode-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.mode-btn.active {
  background: var(--accent-primary);
  color: white;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.4);
}

/* Header Actions Toolbar */
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-header {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.btn-header:hover {
  background: var(--bg-card);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-header.primary {
  background: var(--accent-gradient);
  border: none;
  color: white;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-header.primary:hover {
  background: var(--accent-gradient-hover);
}

.btn-header.active-voice {
  animation: pulse-red 1.5s infinite;
  background: var(--accent-danger);
  border-color: var(--accent-danger);
}

@keyframes pulse-red {
  0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
  70% { box-shadow: 0 0 0 10px rgba(239, 68, 68, 0); }
  100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

/* 2. MAIN WORKSPACE AREA */
.ide-workspace {
  flex: 1;
  display: flex;
  overflow: hidden;
  position: relative;
}

/* Sidebar Navigation Tabs & Panels */
.sidebar-panel {
  width: var(--sidebar-width);
  background: var(--bg-primary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  user-select: none;
  z-index: 20;
}

.sidebar-header {
  padding: 10px 14px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-tools {
  display: flex;
  gap: 6px;
}

.icon-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
}

.icon-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.1);
}

.file-tree-container {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}

.file-tree-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.15s ease;
}

.file-tree-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

.file-tree-item.active {
  background: rgba(99, 102, 241, 0.15);
  color: #818cf8;
  border-left: 3px solid var(--accent-primary);
  font-weight: 600;
}

.file-icon {
  font-size: 14px;
}

.file-action-btn {
  font-size: 14px;
  color: var(--text-muted);
  opacity: 0.5;
  padding: 0 4px;
  border-radius: 4px;
}

.file-action-btn:hover {
  opacity: 1;
  color: var(--accent-danger);
  background: rgba(239, 68, 68, 0.1);
}

/* 3. CENTER EDITOR & PREVIEW PANES */
.editor-main-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  background: var(--bg-darkest);
}

/* Tab Bar */
.tab-bar {
  height: var(--tab-height);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  overflow-x: auto;
  user-select: none;
}

.editor-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  height: 100%;
  background: transparent;
  border-right: 1px solid var(--border-color);
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.editor-tab:hover {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
}

.editor-tab.active {
  background: var(--bg-darkest);
  color: var(--text-primary);
  border-top: 2px solid var(--accent-primary);
  font-weight: 600;
}

.tab-close {
  opacity: 0.6;
  font-size: 12px;
  border-radius: 50%;
  padding: 2px;
}

.tab-close:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.2);
}

/* Split Panes (Editor + Preview) */
.workspace-panes {
  flex: 1;
  display: flex;
  overflow: hidden;
  position: relative;
}

.pane-editor {
  flex: 1;
  height: 100%;
  position: relative;
}

#monaco-editor-container {
  width: 100%;
  height: 100%;
}

.pane-preview-container {
  flex: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border-left: 1px solid var(--border-color);
  position: relative;
}

.preview-header {
  height: 32px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  font-size: 11px;
  color: var(--text-secondary);
}

#preview-iframe {
  flex: 1;
  width: 100%;
  border: none;
  background: #ffffff;
}

/* 4. BOTTOM TERMINAL PANEL */
.terminal-panel {
  height: 180px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  z-index: 30;
}

.terminal-header {
  height: 30px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  user-select: none;
}

.terminal-body {
  flex: 1;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  overflow-y: auto;
  color: #38bdf8;
}

.terminal-line {
  margin-bottom: 4px;
  line-height: 1.4;
  word-break: break-all;
}

.terminal-line.error { color: #f87171; }
.terminal-line.success { color: #34d399; }
.terminal-line.info { color: #38bdf8; }

.terminal-input-line {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.prompt-symbol {
  color: var(--secondary-color, #a855f7);
  font-weight: bold;
}

.terminal-input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  outline: none;
}

/* 5. RIGHT AI ASSISTANT PANEL */
.ai-assistant-panel {
  width: var(--ai-panel-width);
  background: var(--bg-primary);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  z-index: 20;
}

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

.ai-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
}

.ai-actions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 10px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
}

.ai-action-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 6px 8px;
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: all 0.15s ease;
}

.ai-action-btn:hover {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: white;
}

.ai-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-msg {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-width: 90%;
  font-size: 12px;
}

.chat-msg.user {
  align-self: flex-end;
  background: var(--accent-primary);
  color: white;
  padding: 8px 12px;
  border-radius: 12px 12px 2px 12px;
}

.chat-msg.ai {
  align-self: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 10px 12px;
  border-radius: 12px 12px 12px 2px;
}

.code-block-preview {
  background: var(--bg-darkest);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  overflow-x: auto;
  margin: 6px 0;
  color: #38bdf8;
}

.inline-code {
  background: rgba(0, 0, 0, 0.3);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: #f472b6;
}

.chat-input-area {
  padding: 10px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 6px;
}

.chat-input {
  flex: 1;
  background: var(--bg-darkest);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 8px 12px;
  font-family: inherit;
  font-size: 12px;
  border-radius: var(--radius-sm);
  outline: none;
}

.chat-input:focus {
  border-color: var(--accent-primary);
}

/* MODAL DIALOGS */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 480px;
  padding: 24px;
  box-shadow: var(--shadow-lg);
}

.modal-header-title {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-group label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group input, .form-group select {
  background: var(--bg-darkest);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  outline: none;
}

.form-group input:focus, .form-group select:focus {
  border-color: var(--accent-primary);
}

.hidden {
  display: none !important;
}

/* 📱 Responsive Behavior */
@media (max-width: 768px) {
  .sidebar-panel { display: none; }
  .ai-assistant-panel { display: none; }
  .mode-btn span { display: none; }
}