/* Modern Flat Neumorphic Dark Theme for E1AF AI Codebase Copilot */

:root {
  --bg-main: #13111b; /* Base canvas color for shadows to blend */
  --bg-panel: #161421; /* Extruded panel background */
  --bg-inset: #0e0d16; /* Sunken field background */
  
  --bg-bubble-user: linear-gradient(135deg, #7c3aed 0%, #4f46e5 100%);
  --bg-bubble-ai: #161421;
  --text-main: #f5f3fa;
  --text-muted: #8c83a3;
  --border-glass: rgba(255, 255, 255, 0.02);
  --border-focus: rgba(168, 85, 247, 0.45);
  
  --primary: #c084fc;
  --primary-glow: rgba(168, 85, 247, 0.18);
  --secondary: #818cf8;
  --secondary-glow: rgba(129, 140, 248, 0.18);
  --success: #34d399;
  --error: #f43f5e;
  
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'Fira Code', monospace;

  /* Neumorphic 3D shadow presets */
  --shadow-flat-out: -8px -8px 16px rgba(255, 255, 255, 0.03), 8px 8px 16px rgba(0, 0, 0, 0.6);
  --shadow-flat-in: inset -4px -4px 10px rgba(255, 255, 255, 0.02), inset 4px 4px 10px rgba(0, 0, 0, 0.7);
  --shadow-button: -4px -4px 10px rgba(255, 255, 255, 0.03), 4px 4px 10px rgba(0, 0, 0, 0.5);
  --shadow-button-active: inset -3px -3px 8px rgba(255, 255, 255, 0.03), inset 3px 3px 8px rgba(0, 0, 0, 0.7);
}

[data-theme="light"] {
  --bg-main: #e2e8f0; /* Soft light gray canvas */
  --bg-panel: #e2e8f0; /* Extruded card/panel surface (needs to match bg-main for 3D effect) */
  --bg-inset: #cbd5e1; /* Sunken fields */
  
  --bg-bubble-user: linear-gradient(135deg, #7c3aed 0%, #4f46e5 100%);
  --bg-bubble-ai: #e2e8f0;
  --text-main: #1e293b; /* Clean dark text */
  --text-muted: #64748b; /* Muted gray text */
  --border-glass: rgba(255, 255, 255, 0.5);
  --border-focus: rgba(124, 58, 237, 0.6);
  
  --primary: #7c3aed;
  --primary-glow: rgba(124, 58, 237, 0.2);
  --secondary: #4f46e5;
  --secondary-glow: rgba(79, 70, 229, 0.2);
  --success: #059669;
  --error: #e11d48;

  /* Light Neumorphism 3D Shadows */
  --shadow-flat-out: -9px -9px 18px rgba(255, 255, 255, 1), 9px 9px 18px rgba(163, 177, 198, 0.6);
  --shadow-flat-in: inset -5px -5px 10px rgba(255, 255, 255, 1), inset 5px 5px 10px rgba(163, 177, 198, 0.6);
  --shadow-button: -5px -5px 10px rgba(255, 255, 255, 1), 5px 5px 10px rgba(163, 177, 198, 0.5);
  --shadow-button-active: inset -3px -3px 7px rgba(255, 255, 255, 1), inset 3px 3px 7px rgba(163, 177, 198, 0.6);
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
  position: relative;
}

/* Hide glow circles in Neumorphism to preserve shadow illusion */
.glow-bg {
  display: none;
}

/* App Core Layout */
.app-layout {
  position: relative;
  z-index: 2;
  display: flex;
  height: 100vh;
  width: 100vw;
}

/* Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Sidebar controls panel */
.sidebar {
  width: 320px;
  background: var(--bg-panel);
  border-right: 1px solid rgba(0, 0, 0, 0.2);
  box-shadow: 4px 0 16px rgba(0, 0, 0, 0.35);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  overflow-y: auto;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease, opacity 0.3s ease;
  flex-shrink: 0;
}

.sidebar.collapsed {
  width: 0;
  padding: 0;
  opacity: 0;
  pointer-events: none;
  border-right: none;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  padding-bottom: 20px;
}

.brand-logo {
  font-size: 2rem;
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.5));
}

.brand h2 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.brand span {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Form Sections */
.section {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--bg-panel);
  padding: 16px;
  border-radius: 12px;
  box-shadow: var(--shadow-flat-out);
  border: 1px solid rgba(255, 255, 255, 0.01);
}

.section h3 {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.input-wrapper {
  background: var(--bg-inset);
  border: 1px solid rgba(0, 0, 0, 0.15);
  box-shadow: var(--shadow-flat-in);
  border-radius: 8px;
  padding: 10px 14px;
  transition: all 0.2s ease;
}

.input-wrapper:focus-within {
  border-color: var(--border-focus);
}

.input-wrapper input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-main);
  width: 100%;
  font-size: 0.88rem;
  font-family: inherit;
}

/* Compact Inputs Grid */
.grid-inputs {
  display: flex;
  gap: 8px;
}

.form-group-compact {
  flex: 1;
}

.form-group-compact input {
  width: 100%;
  background: var(--bg-inset);
  border: 1px solid rgba(0, 0, 0, 0.15);
  box-shadow: var(--shadow-flat-in);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.78rem;
  color: var(--text-main);
  outline: none;
  font-family: inherit;
  transition: all 0.2s ease;
}

.form-group-compact input:focus {
  border-color: var(--border-focus);
}

/* Standard Buttons */
button {
  cursor: pointer;
  font-family: inherit;
  font-size: 0.86rem;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.01);
  border-radius: 8px;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(145deg, #181625, #14121f);
  box-shadow: var(--shadow-button);
  color: var(--text-main);
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

button:hover {
  background: linear-gradient(145deg, #1b1929, #12101c);
  color: #fff;
}

button:active {
  background: #110f1a;
  box-shadow: var(--shadow-button-active);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-primary {
  background: linear-gradient(135deg, #7c3aed 0%, #4f46e5 100%) !important;
  color: #fff !important;
  border: 1px solid rgba(255, 255, 255, 0.04) !important;
  box-shadow: -2px -2px 6px rgba(255, 255, 255, 0.04), 3px 3px 8px rgba(0, 0, 0, 0.45) !important;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%) !important;
}

.btn-primary:active {
  background: linear-gradient(135deg, #6d28d9 0%, #4338ca 100%) !important;
  box-shadow: inset -2px -2px 4px rgba(255, 255, 255, 0.04), inset 2px 2px 6px rgba(0, 0, 0, 0.6) !important;
}

.btn-secondary {
  background: linear-gradient(145deg, #181625, #14121f);
  box-shadow: var(--shadow-button);
  color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.01);
}

/* Stats Card Panel */
.stats-card {
  background: var(--bg-inset);
  box-shadow: var(--shadow-flat-in);
  border: 1px solid rgba(0, 0, 0, 0.15);
  border-radius: 10px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
}

.stat-row span {
  color: var(--text-muted);
}

.path-text {
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.status-badge {
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.status-badge.idle {
  background: rgba(159, 150, 181, 0.15);
  color: var(--text-muted);
}

.status-badge.scanning {
  background: rgba(6, 182, 212, 0.15);
  color: var(--secondary);
  animation: pulseScan 1.5s infinite;
}

.status-badge.synced {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
}

@keyframes pulseScan {
  0% { opacity: 0.6; }
  50% { opacity: 1; }
  100% { opacity: 0.6; }
}

/* Form Settings Input styling */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
}

.form-group select {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-glass);
  border-radius: 8px;
  padding: 10px;
  color: var(--text-main);
  outline: none;
  font-family: inherit;
  font-size: 0.82rem;
}

.form-group select:focus {
  border-color: var(--secondary);
}

.api-key-wrapper {
  display: flex;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-glass);
  border-radius: 8px;
  overflow: hidden;
}

.api-key-wrapper input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-main);
  padding: 10px 12px;
  flex-grow: 1;
  font-size: 0.82rem;
}

.btn-toggle-key {
  background: transparent;
  padding: 0 14px;
  color: var(--text-muted);
}

.btn-toggle-key:hover {
  color: var(--text-main);
}

/* Sidebar Footer */
.sidebar-footer {
  margin-top: auto;
  font-size: 0.72rem;
  color: var(--text-muted);
  text-align: center;
  border-top: 1px solid var(--border-glass);
  padding-top: 15px;
}

/* Workspace Explorer Sidebar */
.explorer {
  width: 280px;
  background: rgba(8, 6, 15, 0.55);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border-right: 1px solid var(--border-glass);
  display: flex;
  flex-direction: column;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease, border-right 0.3s ease;
  flex-shrink: 0;
}

.explorer.collapsed {
  width: 0;
  opacity: 0;
  pointer-events: none;
  border-right: none;
}

.explorer-header {
  padding: 24px 20px 14px 20px;
  border-bottom: 1px solid var(--border-glass);
}

.explorer-header h3 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.explorer-search {
  margin: 12px 20px;
  display: flex;
  align-items: center;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-glass);
  border-radius: 6px;
  padding: 6px 10px;
}

.search-icon {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-right: 8px;
}

.explorer-search input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 0.8rem;
  width: 100%;
}

.file-list {
  flex-grow: 1;
  overflow-y: auto;
  padding: 0 12px 20px 12px;
}

.file-list-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--text-muted);
  gap: 12px;
  padding: 40px 10px;
}

.file-list-empty i {
  font-size: 1.5rem;
  opacity: 0.4;
}

.file-list-empty p {
  font-size: 0.75rem;
  line-height: 1.4;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.file-item:hover {
  background: rgba(255, 255, 255, 0.04);
  transform: translateX(2px);
}

.file-item i {
  font-size: 0.85rem;
  flex-shrink: 0;
}

.file-item-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex-grow: 1;
}

.file-item-size {
  font-size: 0.68rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* File Icon Classes */
.icon-java { color: #f89820; }
.icon-js { color: #f7df1e; }
.icon-py { color: #3776ab; }
.icon-html { color: #e34c26; }
.icon-css { color: #264de4; }
.icon-json { color: #00c3c3; }
.icon-xml { color: #5c6bc0; }
.icon-feature { color: #00a818; }
.icon-md { color: #06b6d4; }
.icon-yaml { color: #ab47bc; }
.icon-sh { color: #4caf50; }
.icon-pdf { color: #ef4444; }
.icon-default { color: #eceff1; }

/* Main Chat Area */
.main-content {
  flex-grow: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg-main);
  height: 100%;
}

/* Top bar status indicator */
.top-bar {
  height: 70px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.25);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: var(--bg-panel);
  z-index: 5;
}

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

.btn-icon {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
}

.btn-icon:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--secondary);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-grow: 1;
}

.pulse-dot {
  width: 10px;
  height: 10px;
  background-color: var(--success);
  border-radius: 50%;
  position: relative;
}

.pulse-dot::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 50%;
  background-color: var(--success);
  transform: scale(1);
  opacity: 0.6;
  animation: pulseScale 1.8s infinite ease-out;
}

@keyframes pulseScale {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(2.5); opacity: 0; }
}

.status-indicator h1 {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.2px;
}

.status-indicator p {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 1px;
}

.btn-clear {
  background: rgba(239, 68, 68, 0.05);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: var(--error);
  padding: 8px 12px;
  font-size: 0.8rem;
}

.btn-clear:hover {
  background: rgba(239, 68, 68, 0.12);
  border-color: var(--error);
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.2);
}

/* Chat Messages Pane */
.chat-container {
  flex-grow: 1;
  overflow-y: auto;
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.msg {
  display: flex;
  gap: 16px;
  max-width: 85%;
  animation: slideUp 0.3s cubic-bezier(0.18, 0.89, 0.32, 1.28);
}

@keyframes slideUp {
  0% { transform: translateY(12px); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}

.msg.user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.msg.assistant {
  align-self: flex-start;
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.msg.user .avatar {
  background: linear-gradient(135deg, var(--secondary), #0891b2);
  color: #fff;
}

.msg.assistant .avatar {
  background: linear-gradient(135deg, var(--primary), #6d28d9);
  color: #fff;
}

.bubble {
  padding: 14px 18px;
  border-radius: 14px;
  font-size: 0.92rem;
  line-height: 1.6;
}

.msg.user .bubble {
  background: var(--bg-bubble-user);
  box-shadow: var(--shadow-flat-out);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-top-right-radius: 2px;
  color: #fff;
}

.msg.assistant .bubble {
  background: var(--bg-bubble-ai);
  box-shadow: var(--shadow-flat-out);
  border: 1px solid rgba(255, 255, 255, 0.01);
  border-top-left-radius: 2px;
  color: var(--text-main);
}

.welcome-msg .bubble {
  background: rgba(255, 255, 255, 0.015) !important;
  border-color: rgba(255, 255, 255, 0.04) !important;
  max-width: 750px;
}

.welcome-msg ul {
  padding-left: 20px;
  margin: 10px 0;
}

.welcome-msg li {
  margin-bottom: 6px;
}

/* Markdown formatting inside chat bubbles */
.bubble h1, .bubble h2, .bubble h3, .bubble h4 {
  color: var(--text-main);
  margin-top: 18px;
  margin-bottom: 8px;
  font-weight: 600;
}

.msg.user .bubble h1, .msg.user .bubble h2, .msg.user .bubble h3, .msg.user .bubble h4, .msg.user .bubble p {
  color: #ffffff;
}

.bubble h1 { font-size: 1.3rem; border-bottom: 1px solid var(--border-glass); padding-bottom: 4px; }
.bubble h2 { font-size: 1.18rem; }
.bubble h3 { font-size: 1.08rem; }
.bubble h4 { font-size: 0.98rem; }

.bubble p {
  margin-bottom: 12px;
}

.bubble p:last-child {
  margin-bottom: 0;
}

.bubble ul, .bubble ol {
  padding-left: 22px;
  margin: 10px 0 14px 0;
}

.bubble li {
  margin-bottom: 6px;
}

/* Glassmorphism tables style */
.bubble table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 0.84rem;
  background: var(--bg-inset);
  border: 1px solid var(--border-focus);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-flat-in);
}

.bubble th {
  background: var(--primary-glow);
  color: var(--primary);
  font-weight: 600;
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-focus);
}

.bubble td {
  padding: 9px 14px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-glass);
}

.bubble tr:last-child td {
  border-bottom: none;
}

.bubble tr:hover td {
  background: var(--bg-panel);
  color: var(--text-main);
}

/* Typing indicator spinner */
.ai-typing-loader {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 4px;
}

.ai-typing-loader span {
  width: 6px;
  height: 6px;
  background-color: var(--text-main);
  border-radius: 50%;
  animation: typingBounce 1s infinite alternate;
}

.ai-typing-loader span:nth-child(2) { animation-delay: 0.2s; }
.ai-typing-loader span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0% { transform: translateY(0); opacity: 0.4; }
  100% { transform: translateY(-6px); opacity: 1; }
}

/* Code Snippet Styles in Bubble */
.bubble pre {
  margin: 14px 0;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.04);
  background: rgba(0, 0, 0, 0.2);
  position: relative;
  overflow: visible;
}

.bubble code {
  font-family: var(--font-mono);
  font-size: 0.82rem !important;
  background: transparent !important;
}

.btn-copy-code {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 4px 10px;
  font-size: 0.72rem;
  color: var(--text-muted);
  border-radius: 4px;
}

.btn-copy-code:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

/* Quick Suggestion Pills */
.chat-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 10px 30px 16px 30px;
}

.pill {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
}

.pill:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--secondary);
  color: var(--text-main);
  transform: translateY(-1px);
}

/* Footer text area input */
.input-panel {
  padding: 0 30px 24px 30px;
}

.input-area {
  display: flex;
  background: var(--bg-inset);
  border: 1px solid rgba(0, 0, 0, 0.15);
  box-shadow: var(--shadow-flat-in);
  border-radius: 12px;
  padding: 12px 14px;
  gap: 12px;
  align-items: flex-end;
  transition: all 0.2s ease;
}

.input-area:focus-within {
  border-color: var(--border-focus);
}

.input-area textarea {
  flex-grow: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.9rem;
  resize: none;
  height: 48px;
  max-height: 200px;
}

.btn-send {
  background: linear-gradient(135deg, #7c3aed 0%, #4f46e5 100%);
  color: #fff;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.04);
  box-shadow: var(--shadow-button);
}

.btn-send:hover {
  background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
}

.btn-send:active {
  background: linear-gradient(135deg, #6d28d9 0%, #4338ca 100%);
  box-shadow: inset -2px -2px 4px rgba(255, 255, 255, 0.04), inset 2px 2px 5px rgba(0, 0, 0, 0.6);
}

.btn-send:disabled {
  opacity: 0.5;
  transform: none;
  box-shadow: none;
}

.input-footer {
  text-align: center;
  margin-top: 8px;
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Interactive Code Viewer Modal overlay screen */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(5, 3, 10, 0.85);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.25s cubic-bezier(0.1, 0.9, 0.2, 1);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  width: 80vw;
  height: 80vh;
  background: rgba(13, 10, 24, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
  animation: scaleUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes scaleUp {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-glass);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.01);
}

.modal-header h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
}

.modal-header .filename {
  color: var(--secondary);
  font-family: var(--font-mono);
  font-weight: 500;
}

.modal-header-actions {
  display: flex;
  gap: 10px;
}

.btn-modal-copy {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  font-size: 0.78rem;
  padding: 6px 12px;
}

.btn-modal-copy:hover {
  background: rgba(255,255,255,0.08);
  border-color: var(--secondary);
}

.btn-modal-close {
  background: rgba(239, 68, 68, 0.1);
  color: var(--error);
  padding: 6px 10px;
}

.btn-modal-close:hover {
  background: rgba(239, 68, 68, 0.2);
}

.modal-body {
  flex-grow: 1;
  overflow: auto;
  background: #08060e;
  padding: 20px;
}

.modal-body pre {
  margin: 0;
  background: transparent !important;
}

.modal-body code {
  font-family: var(--font-mono);
  font-size: 0.85rem !important;
  background: transparent !important;
}
/* ── RAG Toggle Switch ─────────────────────────────────────── */
.rag-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.rag-toggle-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.rag-label {
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--text-primary);
}

.rag-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.rag-status-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
}

.rag-status-label {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Toggle switch pill */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
  cursor: pointer;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--border-glass);
  border-radius: 24px;
  transition: all 0.25s ease;
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  left: 2px;
  top: 2px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: all 0.25s ease;
}

.toggle-switch input:checked + .toggle-slider {
  background: linear-gradient(135deg, #6c47ff, #a78bfa);
  border-color: #6c47ff;
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(20px);
  background: #fff;
}

/* RAG indexing pulse */
@keyframes ragPulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

.status-badge.rag-building {
  animation: ragPulse 1.2s ease-in-out infinite;
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
  border-color: rgba(245, 158, 11, 0.35);
}

.status-badge.rag-ready {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border-color: rgba(16, 185, 129, 0.35);
}

/* ── RAG Source Chips (shown below AI reply) ───────────────── */
.rag-sources {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border-glass);
}

.rag-sources-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  width: 100%;
  display: flex;
  align-items: center;
  gap: 5px;
}

.rag-source-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(108, 71, 255, 0.12);
  border: 1px solid rgba(108, 71, 255, 0.25);
  border-radius: 6px;
  padding: 3px 9px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: #a78bfa;
  cursor: default;
  transition: background 0.15s;
}

.rag-source-chip:hover {
  background: rgba(108, 71, 255, 0.22);
}

.rag-source-chip i {
  font-size: 0.65rem;
  opacity: 0.8;
}

/* ── Media Players (Video & Audio in AI responses) ─────────── */
.media-player-wrapper {
  margin: 14px 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-glass);
  background: rgba(0, 0, 0, 0.25);
}

.media-player-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid var(--border-glass);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
}

.media-player-header i {
  color: var(--primary);
  font-size: 0.85rem;
}

.media-player-wrapper video,
.media-player-wrapper audio {
  display: block;
  width: 100%;
  background: #000;
  border-radius: 0 0 12px 12px;
  outline: none;
}

.media-player-wrapper audio {
  background: transparent;
  padding: 10px 14px 12px;
  border-radius: 0 0 12px 12px;
}

/* ── Audio & Voiceover Players ──────────────────────────────── */
.btn-audio-listen {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(108, 71, 255, 0.12);
  border: 1px solid rgba(108, 71, 255, 0.3);
  border-radius: 6px;
  padding: 3px 10px;
  font-size: 0.73rem;
  color: var(--text-primary);
  cursor: pointer;
  margin-left: auto;
  transition: all 0.2s ease;
}

.btn-audio-listen:hover,
.btn-audio-listen.playing {
  background: rgba(108, 71, 255, 0.25);
  border-color: #a78bfa;
}

.voiceover-player {
  margin: 10px 0;
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(108, 71, 255, 0.08);
  border: 1px solid rgba(108, 71, 255, 0.22);
}

.voiceover-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #a78bfa;
  margin-bottom: 6px;
}

.voiceover-text {
  font-size: 0.84rem;
  font-style: italic;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.5;
}

.btn-play-voiceover {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, #6c47ff, #8b5cf6);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.btn-play-voiceover:hover {
  opacity: 0.9;
}

.btn-play-voiceover.playing {
  background: var(--error);
}

/* ── Mermaid Visual Workflow Diagrams ─────────────────────── */
.mermaid-diagram-card {
  margin: 18px 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-focus);
  background: var(--bg-panel);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-flat-out);
}

.mermaid-diagram-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--primary-glow);
  border-bottom: 1px solid var(--border-focus);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
}

.mermaid-diagram-body {
  padding: 24px;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: auto;
  min-height: 140px;
  background: var(--bg-inset);
}

.mermaid-diagram-body svg {
  max-width: 100% !important;
  height: auto !important;
  font-family: var(--font-family) !important;
}

/* Force Theme Contrast for SVG elements inside Mermaid Diagrams */
.mermaid-diagram-body svg .node rect,
.mermaid-diagram-body svg .node circle,
.mermaid-diagram-body svg .node polygon,
.mermaid-diagram-body svg .node path {
  fill: var(--bg-panel) !important;
  stroke: var(--primary) !important;
  stroke-width: 1.5px !important;
}

.mermaid-diagram-body svg .node .label,
.mermaid-diagram-body svg text,
.mermaid-diagram-body svg .cluster-label,
.mermaid-diagram-body svg .classTitleText,
.mermaid-diagram-body svg .classText {
  fill: var(--text-main) !important;
  color: var(--text-main) !important;
  font-weight: 500 !important;
}

.mermaid-diagram-body svg .edgePath .path,
.mermaid-diagram-body svg .flowchart-link {
  stroke: var(--primary) !important;
  stroke-width: 2px !important;
}

.mermaid-diagram-body svg .marker {
  fill: var(--primary) !important;
  stroke: var(--primary) !important;
}

.mermaid-diagram-body svg .cluster rect {
  fill: rgba(30, 27, 75, 0.5) !important;
  stroke: rgba(139, 92, 246, 0.4) !important;
  rx: 8px !important;
}

.mermaid-diagram-body svg .edgeLabel {
  background-color: #0f172a !important;
  color: #c084fc !important;
}



   RESPONSIVE / MOBILE STYLES
   ============================================================ */

/* Tablet - hide explorer, shrink sidebar slightly */
@media (max-width: 1024px) {
  .sidebar {
    width: 280px;
  }
  .explorer {
    display: none;
  }
}

/* Mobile - full overlay sidebar, hidden by default */
@media (max-width: 768px) {
  body {
    overflow: hidden;
  }

  .app-layout {
    flex-direction: column;
    position: relative;
  }

  /* Sidebar becomes a fixed full-height overlay */
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: 85vw;
    max-width: 320px;
    z-index: 200;
    transform: translateX(-110%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 4px 0 30px rgba(0, 0, 0, 0.5);
    overflow-y: auto;
  }

  .sidebar.mobile-open {
    transform: translateX(0);
  }

  .sidebar.collapsed {
    transform: translateX(-110%);
    width: 85vw;
    max-width: 320px;
    opacity: 1;
    padding: 24px;
    pointer-events: auto;
    border-right: 1px solid rgba(255, 255, 255, 0.03);
  }

  /* Explorer hidden on mobile */
  .explorer {
    display: none !important;
  }

  /* Main content fills full screen */
  .main-content {
    width: 100%;
    height: 100%;
    min-width: 0;
  }

  /* Top bar compact on mobile */
  .top-bar {
    padding: 0 14px;
    height: 60px;
    gap: 10px;
  }

  .status-indicator h1 {
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 140px;
  }

  .status-indicator p {
    display: none; /* hide subtitle on mobile */
  }

  .top-actions {
    gap: 6px;
    flex-shrink: 0;
  }

  .btn-clear span {
    display: none;
  }

  /* Chat container fills remaining space */
  .chat-container {
    padding: 14px 12px;
    gap: 18px;
  }

  /* Chat bubbles take more width on mobile */
  .msg {
    max-width: 95%;
  }

  .bubble {
    padding: 12px 14px;
    font-size: 0.88rem;
  }

  /* Input panel full width */
  .input-panel {
    padding: 0 12px 16px 12px;
  }

  .input-area {
    padding: 10px 12px;
    gap: 10px;
  }

  .input-area textarea {
    font-size: 0.88rem;
    height: 42px;
  }

  /* Suggestion pills wrap on mobile */
  .chat-suggestions {
    padding: 8px 12px;
    flex-wrap: wrap;
    gap: 8px;
  }

  .pill {
    font-size: 0.78rem;
    padding: 7px 12px;
  }

  /* Sidebar overlay backdrop */
  .sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 199;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }

  .sidebar-backdrop.visible {
    opacity: 1;
    pointer-events: auto;
  }

  /* Section padding reduce */
  .section {
    padding: 12px;
  }
}

/* Small mobile (< 400px) */
@media (max-width: 400px) {
  .status-indicator h1 {
    max-width: 100px;
    font-size: 0.82rem;
  }

  .btn-icon {
    padding: 7px 10px;
    font-size: 0.8rem;
  }

  .bubble {
    font-size: 0.84rem;
  }

  .input-panel {
    padding: 0 8px 12px 8px;
  }
}

/* File Upload Preview Styles */
.file-preview-bar {
  display: flex;
  padding: 10px 16px;
  background: rgba(8, 6, 15, 0.4);
  border: 1px solid var(--border-glass);
  border-bottom: none;
  border-top-left-radius: 12px;
  border-top-right-radius: 12px;
  margin-bottom: -1px;
}

.file-preview-card {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 0.8rem;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.btn-preview-remove {
  background: transparent;
  border: none;
  padding: 0;
  color: var(--error);
  cursor: pointer;
  font-size: 0.85rem;
  transition: opacity 0.15s ease;
}

.btn-preview-remove:hover {
  opacity: 0.8;
}

/* Light Theme Custom Adjustments */
[data-theme="light"] .bubble h1,
[data-theme="light"] .bubble h2,
[data-theme="light"] .bubble h3,
[data-theme="light"] .bubble h4 {
  color: #1f2937;
}

[data-theme="light"] .modal-content {
  background: #f8fafc;
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
}

[data-theme="light"] .modal-header {
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .modal-body {
  background: #ffffff;
}

[data-theme="light"] .bubble pre {
  background: #eaedf2 !important;
  border: 1px solid rgba(0,0,0,0.05);
}

[data-theme="light"] .bubble code {
  color: #1f2937;
}

[data-theme="light"] .bubble table {
  background: rgba(0, 0, 0, 0.01);
  border-color: rgba(0,0,0,0.05);
}

[data-theme="light"] .bubble th {
  background: rgba(124, 58, 237, 0.08);
  color: #6d28d9;
  border-bottom-color: rgba(0,0,0,0.05);
}

[data-theme="light"] .bubble td {
  color: #4b5563;
  border-bottom-color: rgba(0,0,0,0.03);
}

[data-theme="light"] .bubble tr:hover td {
  background: rgba(0, 0, 0, 0.015);
  color: #111;
}

[data-theme="light"] .file-preview-bar {
  background: #e2e8f0;
}

[data-theme="light"] .file-preview-card {
  background: #ffffff;
  border-color: rgba(0,0,0,0.05);
  color: #1f2937;
}

[data-theme="light"] .explorer {
  border-right-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .explorer-header {
  border-bottom-color: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .explorer-search {
  border-color: rgba(0, 0, 0, 0.1);
  background: #ffffff;
}

[data-theme="light"] .file-list-empty {
  color: #6b7280;
}

[data-theme="light"] .file-item:hover {
  background: rgba(0, 0, 0, 0.03);
}

[data-theme="light"] .file-item.active {
  background: rgba(124, 58, 237, 0.1);
}

[data-theme="light"] .btn-icon {
  background: var(--bg-panel);
  box-shadow: var(--shadow-button);
  color: #1f2937;
}

[data-theme="light"] .btn-icon:hover {
  background: #ffffff;
}

[data-theme="light"] .btn-icon:active {
  box-shadow: var(--shadow-button-active);
}

[data-theme="light"] .input-wrapper input {
  color: #111;
}

[data-theme="light"] .explorer-search input {
  color: #111;
}

[data-theme="light"] .status-indicator p {
  color: #6b7280;
}

[data-theme="light"] .status-indicator h1 {
  color: #111;
}

[data-theme="light"] .welcome-msg .bubble {
  background: #f8fafc !important;
  border-color: rgba(0,0,0,0.05) !important;
}

[data-theme="light"] .pill {
  background: var(--bg-panel);
  box-shadow: var(--shadow-button);
  color: #4b5563;
}

[data-theme="light"] .pill:hover {
  background: #ffffff;
  color: #111;
}

[data-theme="light"] .pill:active {
  box-shadow: var(--shadow-button-active);
}

[data-theme="light"] .stats-card span {
  color: #4b5563;
}

[data-theme="light"] .path-text {
  color: #1f2937;
}