/* ==========================================================================
   Nova AI Astra | Enterprise Autonomous Intelligence Studio
   Master Design System & Polished Professional Stylesheet
   ========================================================================== */

:root {
  /* Core Color Palette - Precision Obsidian */
  --bg-space: #06070a;
  --bg-primary: #0c0e15;
  --bg-secondary: #121520;
  --bg-tertiary: #181c2b;
  --bg-elevated: #202538;
  --bg-hover: rgba(255, 255, 255, 0.05);
  --bg-active: rgba(255, 255, 255, 0.09);

  /* Primary Brand Gradients & Accents */
  --accent-cyan: #00f2fe;
  --accent-teal: #4facfe;
  --accent-emerald: #10b981;
  --accent-purple: #8a2be2;
  --accent-indigo: #6366f1;
  --accent-primary: #10b981;
  --accent-primary-hover: #059669;
  --accent-glow: 0 0 25px rgba(16, 185, 129, 0.25);
  --specular-border: linear-gradient(180deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0.03) 100%);

  /* Typography Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #06070a;

  /* Glassmorphism & Borders */
  --glass-bg: rgba(18, 21, 32, 0.78);
  --glass-card: rgba(24, 28, 43, 0.65);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(255, 255, 255, 0.16);
  --glass-blur: blur(20px);

  /* Dimensions & Spacing */
  --sidebar-width: 280px;
  --canvas-width: 52%;
  --header-height: 60px;
  --radius-xs: 5px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Elevation Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.7);

  /* Precision Transitions */
  --transition-fast: 0.14s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.24s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.36s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Theme Accents */
body[data-theme="cyan"] {
  --accent-primary: #00f2fe;
  --accent-primary-hover: #00c7d4;
  --accent-glow: 0 0 25px rgba(0, 242, 254, 0.3);
}
body[data-theme="purple"] {
  --accent-primary: #a855f7;
  --accent-primary-hover: #9333ea;
  --accent-glow: 0 0 25px rgba(168, 85, 247, 0.3);
}
body[data-theme="amber"] {
  --accent-primary: #f59e0b;
  --accent-primary-hover: #d97706;
  --accent-glow: 0 0 25px rgba(245, 158, 11, 0.3);
}
body[data-theme="emerald"] {
  --accent-primary: #10b981;
  --accent-primary-hover: #059669;
  --accent-glow: 0 0 25px rgba(16, 185, 129, 0.3);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-space);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14.5px;
  line-height: 1.55;
}

/* Specular Ambient Mesh Background */
.ambient-mesh {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(circle at 12% 10%, rgba(16, 185, 129, 0.05) 0%, transparent 45%),
    radial-gradient(circle at 88% 15%, rgba(99, 102, 241, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 50% 90%, rgba(0, 242, 254, 0.04) 0%, transparent 55%),
    radial-gradient(circle at 50% 50%, rgba(12, 14, 21, 0.98) 0%, var(--bg-space) 100%);
  transition: background var(--transition-smooth);
}

/* App Shell Layout */
#app-root {
  display: flex;
  width: 100vw;
  height: 100vh;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

/* ==========================================================================
   Sidebar: Professional Session Management & Quota Telemetry
   ========================================================================== */
#sidebar {
  width: var(--sidebar-width);
  height: 100%;
  background: var(--bg-primary);
  border-right: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-smooth), width var(--transition-smooth);
  z-index: 40;
  flex-shrink: 0;
}

#sidebar.collapsed {
  transform: translateX(-100%);
  width: 0;
  border-right: none;
  overflow: hidden;
}

.sidebar-header {
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--glass-border);
}

.brand-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-orb {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #10b981 0%, #00f2fe 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 14px rgba(16, 185, 129, 0.35);
}

.brand-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff 40%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.version-pill {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  background: rgba(16, 185, 129, 0.12);
  color: var(--accent-primary);
  border: 1px solid rgba(16, 185, 129, 0.25);
  letter-spacing: 0.04em;
}

/* Sidebar Actions */
.sidebar-actions {
  padding: 12px 14px 8px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-new-chat {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 9px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-new-chat:hover {
  background: var(--bg-tertiary);
  border-color: var(--glass-border-hover);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  transform: translateY(-1px);
}

.shortcut-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--text-muted);
  background: var(--bg-primary);
  padding: 2px 5px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--glass-border);
}

/* Search Box */
.search-wrapper {
  position: relative;
  width: 100%;
}

.search-input {
  width: 100%;
  padding: 7px 10px 7px 32px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.82rem;
  outline: none;
  transition: all var(--transition-fast);
}

.search-input:focus {
  border-color: var(--accent-primary);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.15);
}

.search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

/* Workspace Project Folders Bar */
.workspace-folders-bar {
  display: flex;
  gap: 4px;
  padding: 4px 14px 8px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.folder-pill {
  flex: 1;
  text-align: center;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 6px;
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.folder-pill:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.folder-pill.active {
  background: var(--bg-secondary);
  color: var(--accent-primary);
  border-color: var(--glass-border);
}

/* History Lists */
.sidebar-history {
  flex: 1;
  overflow-y: auto;
  padding: 8px 10px;
}

.history-group-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  padding: 10px 8px 4px 8px;
}

.history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 9px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: 2px;
}

.history-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.history-item.active {
  background: rgba(16, 185, 129, 0.1);
  color: #fff;
  border: 1px solid rgba(16, 185, 129, 0.22);
}

.history-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  flex: 1;
}

.history-title {
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-actions {
  display: none;
  align-items: center;
  gap: 3px;
}

.history-item:hover .history-actions {
  display: flex;
}

.action-btn-mini {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 3px;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.action-btn-mini:hover {
  color: var(--text-primary);
  background: var(--bg-active);
}

.action-btn-mini.delete:hover {
  color: #ef4444;
}

/* Sidebar Footer / Quota & User */
.sidebar-footer {
  padding: 12px 14px;
  border-top: 1px solid var(--glass-border);
  background: rgba(12, 14, 21, 0.85);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.quota-container {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 2px 2px;
}

.quota-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.quota-count {
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent-primary);
  font-weight: 600;
}

.quota-progress-track {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.quota-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #10b981, #00f2fe);
  border-radius: var(--radius-full);
}

.user-profile-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.user-profile-card:hover {
  background: var(--bg-hover);
}

.user-avatar-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #10b981, #00f2fe);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #06070a;
  font-size: 0.85rem;
}

.user-meta-name {
  font-weight: 600;
  font-size: 0.82rem;
  line-height: 1.2;
}

.user-meta-tier {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--accent-primary);
  font-weight: 600;
}

/* ==========================================================================
   Header: Telemetry HUD, Model Selector & Global Actions
   ========================================================================== */
#main-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  position: relative;
  background: var(--bg-primary);
}

#top-header {
  height: var(--header-height);
  border-bottom: 1px solid var(--glass-border);
  background: rgba(12, 14, 21, 0.82);
  backdrop-filter: var(--glass-blur);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 30;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.icon-button {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.icon-button:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--glass-border);
}

/* Model Selector Button */
.model-selector-wrapper {
  position: relative;
}

.model-selector-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.model-selector-btn:hover {
  border-color: var(--accent-primary);
  background: var(--bg-tertiary);
  box-shadow: 0 0 14px rgba(16, 185, 129, 0.15);
}

.model-dot {
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: var(--accent-primary);
  box-shadow: 0 0 6px var(--accent-primary);
}

.model-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  width: 350px;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border-hover);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 0, 0, 0.6);
  backdrop-filter: var(--glass-blur);
  padding: 6px;
  display: none;
  flex-direction: column;
  gap: 4px;
  z-index: 100;
  animation: menuDrop 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

.model-menu.open {
  display: flex;
}

@keyframes menuDrop {
  from { opacity: 0; transform: translateY(-6px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.model-option {
  padding: 9px 11px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  transition: all var(--transition-fast);
}

.model-option:hover {
  background: var(--bg-hover);
}

.model-option.active {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.model-option-icon {
  font-size: 1.15rem;
  margin-top: 1px;
}

.model-option-info {
  flex: 1;
}

.model-option-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.model-option-name {
  font-weight: 700;
  font-size: 0.86rem;
  color: var(--text-primary);
}

.model-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.64rem;
  font-weight: 700;
  padding: 2px 5px;
  border-radius: var(--radius-xs);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
}

.model-option.active .model-tag {
  background: rgba(16, 185, 129, 0.18);
  color: var(--accent-primary);
}

.model-option-desc {
  font-size: 0.74rem;
  color: var(--text-muted);
  margin-top: 2px;
  line-height: 1.35;
}

/* Telemetry Inline Chip Bar */
.telemetry-bar-inline {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 8px;
}

.telemetry-chip {
  display: flex;
  align-items: center;
  gap: 5px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 4px 8px;
  border-radius: var(--radius-xs);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}

.pulse-dot.green {
  background: #10b981;
  box-shadow: 0 0 6px #10b981;
  animation: radarPulse 2s infinite;
}

@keyframes radarPulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

/* Header Right Action Pills */
.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.feature-pill-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  padding: 6px 11px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.feature-pill-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border-color: var(--glass-border-hover);
}

.feature-pill-btn.active {
  background: rgba(16, 185, 129, 0.12);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.feature-pill-btn.active.search-active {
  background: rgba(59, 130, 246, 0.15);
  border-color: #3b82f6;
  color: #60a5fa;
}

.voice-mode-trigger {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(16, 185, 129, 0.15));
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: #34d399;
}

.voice-mode-trigger:hover {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(16, 185, 129, 0.25));
  color: #fff;
  box-shadow: 0 0 16px rgba(16, 185, 129, 0.25);
}

/* ==========================================================================
   Chat Flow Viewport
   ========================================================================== */
.chat-workspace {
  flex: 1;
  display: flex;
  overflow: hidden;
  position: relative;
}

.chat-flow-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  position: relative;
}

.messages-scroll-area {
  flex: 1;
  overflow-y: auto;
  padding: 24px 20px 170px 20px;
  scroll-behavior: smooth;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.messages-container {
  width: 100%;
  max-width: 820px;
  display: flex;
  flex-direction: column;
  gap: 26px;
}

/* ==========================================================================
   Welcome Hero: Professional Presentation
   ========================================================================== */
#welcome-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 10px 20px 10px;
  width: 100%;
  max-width: 820px;
  margin: auto 0;
}

.hero-orb-visual {
  position: relative;
  width: 90px;
  height: 90px;
  margin-bottom: 20px;
}

.orb-ring-outer {
  position: absolute;
  inset: -12px;
  border-radius: var(--radius-full);
  border: 1px dashed rgba(16, 185, 129, 0.3);
  animation: spinSlow 30s linear infinite;
}

.orb-core-sphere {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-full);
  background: radial-gradient(circle at 35% 35%, #00f2fe 0%, #10b981 50%, #07080c 100%);
  box-shadow: 0 0 35px rgba(16, 185, 129, 0.4), inset 0 0 20px rgba(255, 255, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
}

.orb-inner-symbol {
  width: 40px;
  height: 40px;
  color: #fff;
  filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.8));
}

@keyframes spinSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.hero-badge-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent-primary);
  background: rgba(16, 185, 129, 0.1);
  padding: 3px 9px;
  border-radius: var(--radius-xs);
  border: 1px solid rgba(16, 185, 129, 0.25);
  margin-bottom: 12px;
}

.hero-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 2.1rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #ffffff 30%, #94a3b8 70%, #10b981 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}

.hero-subtitle {
  font-size: 0.98rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.5;
  margin-bottom: 32px;
}

/* Prompt Starters Grid */
.prompt-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  width: 100%;
}

.prompt-card {
  background: var(--glass-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: var(--glass-blur);
  position: relative;
  overflow: hidden;
}

.prompt-card:hover {
  background: var(--bg-elevated);
  border-color: var(--glass-border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.card-icon-badge {
  font-size: 1.05rem;
}

.card-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.card-title {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.card-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.35;
}

/* ==========================================================================
   Chat Messages & DeepSeek <think> Trace
   ========================================================================== */
.message-row {
  display: flex;
  gap: 14px;
  width: 100%;
  animation: messageAppear 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes messageAppear {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.message-row.user {
  flex-direction: row-reverse;
}

.message-avatar {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.88rem;
  font-weight: 700;
}

.message-avatar.assistant {
  background: linear-gradient(135deg, #10b981 0%, #00f2fe 100%);
  color: #06070a;
  box-shadow: 0 0 14px rgba(16, 185, 129, 0.3);
}

.message-avatar.user {
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
}

.message-content-wrap {
  display: flex;
  flex-direction: column;
  max-width: calc(100% - 50px);
  width: 100%;
}

.message-row.user .message-content-wrap {
  align-items: flex-end;
}

/* User Message Bubble */
.user-bubble {
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border-hover);
  padding: 11px 16px;
  border-radius: var(--radius-md) var(--radius-xs) var(--radius-md) var(--radius-md);
  color: var(--text-primary);
  font-size: 0.94rem;
  line-height: 1.5;
  box-shadow: var(--shadow-sm);
  word-break: break-word;
}

.user-attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.attachment-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xs);
  padding: 3px 7px;
  font-size: 0.74rem;
  color: var(--text-secondary);
}

.attachment-chip img {
  width: 22px;
  height: 22px;
  object-fit: cover;
  border-radius: 3px;
}

/* Assistant Message Body */
.assistant-body {
  width: 100%;
  color: var(--text-primary);
  font-size: 0.94rem;
  line-height: 1.6;
}

.assistant-meta-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  font-size: 0.76rem;
  color: var(--text-muted);
}

.model-name-label {
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 5px;
}

.latency-badge {
  display: flex;
  align-items: center;
  gap: 4px;
  font-family: 'JetBrains Mono', monospace;
  background: rgba(255, 255, 255, 0.04);
  padding: 2px 7px;
  border-radius: var(--radius-xs);
}

/* DeepSeek <think> Trace Collapsible Container */
.reasoning-box {
  background: rgba(14, 18, 28, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-left: 3px solid var(--accent-primary);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.reasoning-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 12px;
  background: rgba(255, 255, 255, 0.02);
  cursor: pointer;
  user-select: none;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: background var(--transition-fast);
}

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

.reasoning-label {
  display: flex;
  align-items: center;
  gap: 8px;
}

.reasoning-spinner {
  width: 12px;
  height: 12px;
  border: 2px solid rgba(16, 185, 129, 0.2);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}

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

.reasoning-chevron {
  transition: transform var(--transition-fast);
}

.reasoning-box.collapsed .reasoning-chevron {
  transform: rotate(-90deg);
}

.reasoning-content {
  padding: 12px 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.5;
  background: rgba(0, 0, 0, 0.25);
  display: block;
}

.reasoning-box.collapsed .reasoning-content {
  display: none;
}

.reasoning-step {
  margin-bottom: 8px;
  padding-left: 10px;
  border-left: 2px solid rgba(16, 185, 129, 0.25);
}

.reasoning-step-title {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  color: #cbd5e1;
  font-size: 0.78rem;
  margin-bottom: 2px;
}

/* Citations Bar */
.citations-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.citation-chip {
  display: flex;
  align-items: center;
  gap: 5px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--radius-xs);
  padding: 2px 8px;
  font-size: 0.74rem;
  color: #93c5fd;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.citation-chip:hover {
  background: rgba(59, 130, 246, 0.2);
  border-color: #60a5fa;
  color: #fff;
}

/* Markdown Typography */
.markdown-body h1, .markdown-body h2, .markdown-body h3 {
  color: #fff;
  font-weight: 700;
  margin: 1.1em 0 0.4em 0;
  line-height: 1.3;
}

.markdown-body h1 { font-size: 1.38rem; }
.markdown-body h2 { font-size: 1.18rem; }
.markdown-body h3 { font-size: 1.02rem; }
.markdown-body p { margin-bottom: 0.85em; }
.markdown-body ul, .markdown-body ol { padding-left: 18px; margin-bottom: 0.9em; }
.markdown-body li { margin-bottom: 0.3em; }

.markdown-body blockquote {
  border-left: 3px solid var(--accent-primary);
  background: rgba(255, 255, 255, 0.02);
  padding: 9px 13px;
  color: var(--text-secondary);
  font-style: italic;
  margin: 1em 0;
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1em 0;
  font-size: 0.85rem;
  background: rgba(0, 0, 0, 0.25);
  border-radius: var(--radius-xs);
  overflow: hidden;
}

.markdown-body th, .markdown-body td {
  padding: 8px 12px;
  border: 1px solid var(--glass-border);
  text-align: left;
}

.markdown-body th {
  background: rgba(255, 255, 255, 0.04);
  font-weight: 700;
  color: #fff;
}

.markdown-body code:not(pre code) {
  background: rgba(255, 255, 255, 0.08);
  color: #00f2fe;
  padding: 2px 5px;
  border-radius: 3px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85em;
}

/* Code Block Card */
.code-block-card {
  margin: 1.1em 0;
  background: #080a10;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 12px;
  background: #0f121b;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.code-lang-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 700;
  color: #94a3b8;
  text-transform: uppercase;
}

.code-actions {
  display: flex;
  align-items: center;
  gap: 5px;
}

.code-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  font-size: 0.74rem;
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.code-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.code-btn.canvas-btn {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.3);
  color: var(--accent-primary);
}

.code-block-card pre {
  margin: 0;
  padding: 12px 14px;
  overflow-x: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.84rem;
  line-height: 1.5;
  color: #e2e8f0;
}

/* Image Presentation Card */
.generated-image-card {
  margin: 1.1em 0;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  max-width: 620px;
}

.image-preview-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #000;
  cursor: zoom-in;
}

.image-preview-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.image-preview-wrapper:hover img {
  transform: scale(1.02);
}

.image-card-footer {
  padding: 8px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.2);
}

.image-prompt-meta {
  font-size: 0.78rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 75%;
}

.message-actions-toolbar {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 10px;
  opacity: 0.65;
  transition: opacity var(--transition-fast);
}

.message-row:hover .message-actions-toolbar {
  opacity: 1;
}

.tool-action-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 5px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.tool-action-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.tool-action-btn.active {
  color: var(--accent-primary);
}

.streaming-cursor {
  display: inline-block;
  width: 6px;
  height: 15px;
  background: var(--accent-primary);
  margin-left: 4px;
  vertical-align: middle;
  animation: cursorBlink 0.8s infinite;
  border-radius: 2px;
  box-shadow: 0 0 6px var(--accent-primary);
}

@keyframes cursorBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ==========================================================================
   Bottom Input Dock (Linear / Perplexity Style)
   ========================================================================== */
#bottom-dock {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0 16px 16px 16px;
  background: linear-gradient(to top, var(--bg-primary) 75%, transparent 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: none;
  z-index: 25;
}

.dock-content {
  width: 100%;
  max-width: 820px;
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

#attachments-tray {
  display: none;
  flex-wrap: wrap;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
}

#attachments-tray.visible {
  display: flex;
}

.tray-item {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-tertiary);
  padding: 3px 7px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--glass-border);
  font-size: 0.76rem;
}

.tray-item img {
  width: 24px;
  height: 24px;
  border-radius: 2px;
  object-fit: cover;
}

.tray-remove-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
}

.tray-remove-btn:hover {
  color: #ef4444;
}

/* The Glowing Input Box */
.input-capsule {
  background: rgba(18, 21, 32, 0.9);
  border: 1px solid var(--glass-border-hover);
  border-radius: 20px;
  padding: 10px 14px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45), 0 0 15px rgba(16, 185, 129, 0.05);
  backdrop-filter: var(--glass-blur);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: all var(--transition-normal);
}

.input-capsule:focus-within {
  border-color: rgba(16, 185, 129, 0.45);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.55), 0 0 20px rgba(16, 185, 129, 0.15);
}

.input-capsule textarea {
  width: 100%;
  max-height: 200px;
  min-height: 24px;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.94rem;
  line-height: 1.45;
  resize: none;
  outline: none;
  padding: 2px 4px;
}

.input-capsule textarea::placeholder {
  color: var(--text-muted);
}

.input-bottom-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dock-left-actions {
  display: flex;
  align-items: center;
  gap: 5px;
}

.dock-pill-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  padding: 4px 9px;
  border-radius: var(--radius-xs);
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.dock-pill-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

.dock-pill-btn.active {
  background: rgba(16, 185, 129, 0.12);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.dock-pill-btn.search-mode.active {
  background: rgba(59, 130, 246, 0.12);
  border-color: #3b82f6;
  color: #60a5fa;
}

.dock-right-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.token-counter-hint {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--text-muted);
}

.send-trigger-btn {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background: #27272a;
  color: #71717a;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.send-trigger-btn.ready {
  background: #ffffff;
  color: #06070a;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.3);
}

.send-trigger-btn.ready:hover {
  transform: scale(1.04);
}

.send-trigger-btn.generating {
  background: #ef4444;
  color: #fff;
}

.dock-disclaimer {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-align: center;
  padding: 2px 0;
}

/* ==========================================================================
   Split-Screen Canvas Studio & Viewport Modes
   ========================================================================== */
#canvas-panel {
  width: var(--canvas-width);
  height: 100%;
  background: var(--bg-space);
  border-left: 1px solid var(--glass-border-hover);
  display: none;
  flex-direction: column;
  z-index: 35;
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
  animation: slideCanvas 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

#canvas-panel.visible {
  display: flex;
}

#canvas-panel.fullscreen {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1000;
  border-left: none;
}

@keyframes slideCanvas {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.canvas-header {
  padding: 10px 14px;
  border-bottom: 1px solid var(--glass-border);
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.canvas-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.canvas-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  background: rgba(16, 185, 129, 0.12);
  color: var(--accent-primary);
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.canvas-title {
  font-weight: 700;
  font-size: 0.88rem;
}

.canvas-viewport-modes {
  display: flex;
  align-items: center;
  gap: 3px;
  background: rgba(0, 0, 0, 0.3);
  padding: 3px;
  border-radius: var(--radius-xs);
}

.viewport-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 4px 6px;
  border-radius: 3px;
  cursor: pointer;
  display: flex;
  align-items: center;
}

.viewport-btn:hover {
  color: #fff;
}

.viewport-btn.active {
  background: var(--bg-elevated);
  color: var(--accent-primary);
}

.canvas-controls {
  display: flex;
  align-items: center;
  gap: 5px;
}

.canvas-tab-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  font-size: 0.78rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.canvas-tab-btn.active {
  background: var(--bg-elevated);
  border-color: var(--accent-primary);
  color: #fff;
}

/* Canvas Viewport */
.canvas-viewport {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}

#canvas-sandbox-frame {
  width: 100%;
  height: 100%;
  border: none;
  background: #ffffff;
  transition: width var(--transition-normal);
}

#canvas-sandbox-frame.mode-tablet {
  width: 768px;
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.8);
}

#canvas-sandbox-frame.mode-mobile {
  width: 375px;
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.8);
}

.canvas-code-view {
  display: none;
  width: 100%;
  height: 100%;
  overflow: auto;
  padding: 14px;
  background: #080a10;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.84rem;
  color: #f1f5f9;
  white-space: pre-wrap;
  outline: none;
}

.canvas-code-view.active {
  display: block;
}

/* Console Drawer */
.canvas-console-view {
  display: none;
  width: 100%;
  height: 100%;
  overflow-y: auto;
  background: #07090e;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
}

.canvas-console-view.active {
  display: flex;
  flex-direction: column;
}

.console-header {
  padding: 8px 12px;
  background: #0f121a;
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.console-entries {
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.console-line {
  padding: 2px 4px;
  border-radius: 2px;
}

.console-line.info { color: #93c5fd; }
.console-line.warn { color: #fcd34d; background: rgba(245, 158, 11, 0.08); }
.console-line.error { color: #f87171; background: rgba(239, 68, 68, 0.1); }

/* ==========================================================================
   Executive Command Palette (Ctrl+K)
   ========================================================================== */
.cmd-palette-box {
  width: 100%;
  max-width: 560px;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border-hover);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg), 0 0 50px rgba(0, 0, 0, 0.8);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: menuDrop 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

.cmd-input-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--glass-border);
}

.cmd-input-wrap input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 0.94rem;
  font-family: inherit;
}

.cmd-items-list {
  padding: 6px;
  max-height: 320px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.cmd-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.cmd-item:hover, .cmd-item.selected {
  background: var(--bg-elevated);
}

.cmd-item-icon {
  font-size: 1.1rem;
}

.cmd-item-info {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.cmd-item-title {
  font-weight: 600;
  font-size: 0.86rem;
}

.cmd-item-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Modals & Settings
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(12px);
  z-index: 1500;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-backdrop.open {
  display: flex;
}

.modal-window {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border-hover);
  border-radius: var(--radius-md);
  width: 100%;
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg), 0 0 50px rgba(0, 0, 0, 0.8);
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.05rem;
  font-weight: 700;
}

.modal-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.setting-title {
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--text-primary);
}

.setting-desc {
  font-size: 0.76rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.theme-picker {
  display: flex;
  align-items: center;
  gap: 8px;
}

.theme-dot {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform var(--transition-fast);
}

.theme-dot:hover { transform: scale(1.15); }
.theme-dot.active { border-color: #fff; box-shadow: 0 0 8px rgba(255, 255, 255, 0.5); }
.theme-dot.emerald { background: #10b981; }
.theme-dot.cyan { background: #00f2fe; }
.theme-dot.purple { background: #a855f7; }
.theme-dot.amber { background: #f59e0b; }

.switch {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
}

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

.slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: #374151;
  transition: .25s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .25s;
  border-radius: 50%;
}

input:checked + .slider { background-color: var(--accent-primary); }
input:checked + .slider:before { transform: translateX(18px); }

.modal-input {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xs);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.88rem;
  outline: none;
}

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

.modal-footer {
  padding: 12px 18px;
  border-top: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.btn-primary {
  background: var(--accent-primary);
  color: #06070a;
  font-weight: 700;
  padding: 7px 16px;
  border-radius: var(--radius-xs);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  background: var(--accent-primary-hover);
  box-shadow: 0 0 14px rgba(16, 185, 129, 0.35);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  font-weight: 600;
  padding: 7px 14px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--glass-border);
  cursor: pointer;
}

/* Lightbox & Toasts */
#image-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(20px);
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}

#image-lightbox.open { display: flex; }

#lightbox-img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 50px rgba(0, 0, 0, 0.8);
}

#toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 5000;
  pointer-events: none;
}

.toast {
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border-hover);
  color: #fff;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  font-size: 0.84rem;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: toastSlide 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: auto;
}

@keyframes toastSlide {
  from { opacity: 0; transform: translateY(12px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Voice Mode Overlay */
#voice-overlay {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at center, #0f131f 0%, #050608 100%);
  z-index: 2000;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 24px;
  backdrop-filter: blur(35px);
}

#voice-overlay.active { display: flex; }

.voice-top-bar {
  width: 100%;
  max-width: 900px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.voice-status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-primary);
}

.voice-center-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 100%;
  flex: 1;
}

#voice-wave-canvas { width: 300px; height: 300px; }

.voice-transcription-live {
  max-width: 580px;
  text-align: center;
  font-size: 1.15rem;
  font-weight: 600;
  color: #f1f5f9;
  min-height: 50px;
  margin-top: 20px;
  padding: 0 16px;
}

.voice-controls-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 16px;
}

.voice-round-btn {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border-hover);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.voice-round-btn:hover { transform: scale(1.06); background: var(--bg-elevated); }
.voice-round-btn.mute.active { background: #ef4444; border-color: #ef4444; }
.voice-round-btn.close { background: rgba(255, 255, 255, 0.08); }

/* Responsive Adjustments */
@media (max-width: 1024px) {
  #canvas-panel { width: 60%; }
  .telemetry-bar-inline { display: none; }
}

@media (max-width: 768px) {
  #sidebar { position: absolute; inset: 0 auto 0 0; }
  .prompt-grid { grid-template-columns: 1fr; }
  #canvas-panel { position: fixed; inset: 0; width: 100vw; height: 100vh; z-index: 500; }
  .hero-title { font-size: 1.65rem; }
}