/* ==========================================================
   🌈 ROROGPT - VIBRANT COLORFUL STYLESHEET
   ========================================================== */

:root {
  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================
   THEME PALETTES
   ========================================================== */

/* 1. Neon Aurora (Default Dark) */
[data-theme="neon-aurora"] {
  --bg-app: #090a10;
  --bg-sidebar: #0f111a;
  --bg-card: rgba(22, 26, 38, 0.7);
  --bg-card-hover: rgba(30, 35, 52, 0.85);
  --bg-input: #121522;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(139, 92, 246, 0.35);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-faint: #64748b;

  --accent-primary: #8b5cf6;
  --accent-secondary: #ec4899;
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;

  --grad-primary: linear-gradient(135deg, #8b5cf6, #ec4899);
  --grad-aurora: linear-gradient(135deg, #ec4899 0%, #8b5cf6 50%, #06b6d4 100%);
  --grad-user: linear-gradient(135deg, #7c3aed 0%, #d946ef 100%);
  --grad-glow: 0 0 25px rgba(139, 92, 246, 0.25);

  --sidebar-active: rgba(139, 92, 246, 0.15);
  --scrollbar-thumb: rgba(139, 92, 246, 0.3);
}

/* 2. Sunset Ember */
[data-theme="sunset-glow"] {
  --bg-app: #0f0a12;
  --bg-sidebar: #170f1c;
  --bg-card: rgba(35, 20, 42, 0.7);
  --bg-card-hover: rgba(48, 26, 58, 0.85);
  --bg-input: #1b1222;
  --border-color: rgba(244, 63, 94, 0.15);
  --border-glow: rgba(244, 63, 94, 0.4);

  --text-main: #fff1f2;
  --text-muted: #fda4af;
  --text-faint: #9f1239;

  --accent-primary: #f43f5e;
  --accent-secondary: #f59e0b;
  --accent-cyan: #fb7185;
  --accent-emerald: #10b981;
  --accent-amber: #fbbf24;

  --grad-primary: linear-gradient(135deg, #f43f5e, #f59e0b);
  --grad-aurora: linear-gradient(135deg, #f43f5e 0%, #fb7185 50%, #f59e0b 100%);
  --grad-user: linear-gradient(135deg, #e11d48 0%, #f97316 100%);
  --grad-glow: 0 0 25px rgba(244, 63, 94, 0.25);

  --sidebar-active: rgba(244, 63, 94, 0.15);
  --scrollbar-thumb: rgba(244, 63, 94, 0.3);
}

/* 3. Cyber Ocean */
[data-theme="cyber-teal"] {
  --bg-app: #060e17;
  --bg-sidebar: #0b1724;
  --bg-card: rgba(14, 32, 50, 0.7);
  --bg-card-hover: rgba(20, 44, 70, 0.85);
  --bg-input: #0c1a29;
  --border-color: rgba(6, 182, 212, 0.15);
  --border-glow: rgba(6, 182, 212, 0.4);

  --text-main: #f0fdfa;
  --text-muted: #99f6e4;
  --text-faint: #0f766e;

  --accent-primary: #06b6d4;
  --accent-secondary: #3b82f6;
  --accent-cyan: #00f0ff;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;

  --grad-primary: linear-gradient(135deg, #06b6d4, #3b82f6);
  --grad-aurora: linear-gradient(135deg, #00f0ff 0%, #06b6d4 50%, #3b82f6 100%);
  --grad-user: linear-gradient(135deg, #0284c7 0%, #0d9488 100%);
  --grad-glow: 0 0 25px rgba(6, 182, 212, 0.25);

  --sidebar-active: rgba(6, 182, 212, 0.15);
  --scrollbar-thumb: rgba(6, 182, 212, 0.3);
}

/* 4. Cosmic Violet */
[data-theme="cosmic-violet"] {
  --bg-app: #0d0818;
  --bg-sidebar: #140d24;
  --bg-card: rgba(29, 18, 52, 0.7);
  --bg-card-hover: rgba(42, 26, 74, 0.85);
  --bg-input: #170e2b;
  --border-color: rgba(168, 85, 247, 0.15);
  --border-glow: rgba(168, 85, 247, 0.4);

  --text-main: #faf5ff;
  --text-muted: #d8b4fe;
  --text-faint: #7e22ce;

  --accent-primary: #a855f7;
  --accent-secondary: #ec4899;
  --accent-cyan: #c084fc;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;

  --grad-primary: linear-gradient(135deg, #a855f7, #ec4899);
  --grad-aurora: linear-gradient(135deg, #9333ea 0%, #c084fc 50%, #f43f5e 100%);
  --grad-user: linear-gradient(135deg, #9333ea 0%, #c026d3 100%);
  --grad-glow: 0 0 25px rgba(168, 85, 247, 0.25);

  --sidebar-active: rgba(168, 85, 247, 0.15);
  --scrollbar-thumb: rgba(168, 85, 247, 0.3);
}

/* 5. Emerald Matrix (Vibrant Dark - Zero White Mode) */
[data-theme="emerald-matrix"] {
  --bg-app: #040d08;
  --bg-sidebar: #08170f;
  --bg-card: rgba(10, 32, 20, 0.7);
  --bg-card-hover: rgba(16, 48, 30, 0.85);
  --bg-input: #0a1c12;
  --border-color: rgba(16, 185, 129, 0.18);
  --border-glow: rgba(16, 185, 129, 0.4);

  --text-main: #ecfdf5;
  --text-muted: #a7f3d0;
  --text-faint: #047857;

  --accent-primary: #10b981;
  --accent-secondary: #06b6d4;
  --accent-cyan: #34d399;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;

  --grad-primary: linear-gradient(135deg, #10b981, #06b6d4);
  --grad-aurora: linear-gradient(135deg, #10b981 0%, #34d399 50%, #06b6d4 100%);
  --grad-user: linear-gradient(135deg, #059669 0%, #0891b2 100%);
  --grad-glow: 0 0 25px rgba(16, 185, 129, 0.25);

  --sidebar-active: rgba(16, 185, 129, 0.15);
  --scrollbar-thumb: rgba(16, 185, 129, 0.3);
}

/* 6. Clean Daylight (Vibrant Modern Light Mode) */
[data-theme="clean-light"] {
  --bg-app: #f8fafc;
  --bg-sidebar: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #e2e8f0;
  --bg-input: #ffffff;
  --border-color: rgba(148, 163, 184, 0.35);
  --border-glow: rgba(99, 102, 241, 0.3);

  --text-main: #0f172a;
  --text-muted: #334155;
  --text-faint: #64748b;

  --accent-primary: #6366f1;
  --accent-secondary: #db2777;
  --accent-cyan: #0284c7;
  --accent-emerald: #059669;
  --accent-amber: #d97706;

  --grad-primary: linear-gradient(135deg, #6366f1, #db2777);
  --grad-aurora: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #0284c7 100%);
  --grad-user: linear-gradient(135deg, #4f46e5 0%, #6366f1 100%);
  --grad-glow: 0 4px 20px rgba(99, 102, 241, 0.15);

  --sidebar-active: rgba(99, 102, 241, 0.12);
  --scrollbar-thumb: rgba(148, 163, 184, 0.4);
}

[data-theme="clean-light"] .code-block-wrapper {
  background: #1e293b;
  border-color: rgba(148, 163, 184, 0.3);
}

[data-theme="clean-light"] .code-header {
  background: #0f172a;
}

[data-theme="clean-light"] code:not(pre code) {
  background: rgba(99, 102, 241, 0.1);
  color: #4f46e5;
}

[data-theme="clean-light"] .sidebar-creator-attribution {
  background: rgba(0, 0, 0, 0.04);
  border-color: rgba(0, 0, 0, 0.08);
}

[data-theme="clean-light"] .sidebar-creator-attribution:hover {
  background: rgba(0, 0, 0, 0.07);
}

[data-theme="clean-light"] .theme-menu {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

[data-theme="clean-light"] .modal-dialog {
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

[data-theme="clean-light"] .input-wrapper {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

[data-theme="clean-light"] .message-row.bot .message-bubble {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}

/* ==========================================================
   GLOBAL RESET & BASE
   ========================================================== */

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

body {
  font-family: var(--font-main);
  background: var(--bg-app);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 99px;
}

/* ==========================================================
   LAYOUT STRUCTURE
   ========================================================== */

.app-container {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  position: relative;
}

/* ==========================================================
   SIDEBAR
   ========================================================== */

.sidebar {
  width: 280px;
  min-width: 280px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  z-index: 50;
  transition: none !important;
}

.sidebar.hidden {
  display: none !important;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 18px 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--grad-aurora);
  padding: 2px;
  box-shadow: var(--grad-glow);
  flex-shrink: 0;
  overflow: hidden;
  display: flex;
}

.brand-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: calc(var(--radius-md) - 2px);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  background: var(--grad-aurora);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-tag {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
}

.close-sidebar-btn {
  display: none;
}

.sidebar-action {
  padding: 8px 16px 12px;
}

.new-chat-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.new-chat-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-md);
  padding: 1px;
  background: var(--grad-aurora);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.6;
  transition: opacity 0.2s;
}

.new-chat-btn:hover {
  background: var(--bg-card-hover);
  transform: translateY(-1px);
  box-shadow: var(--grad-glow);
}

.new-chat-btn:hover::before {
  opacity: 1;
}

.new-chat-btn svg {
  width: 18px;
  height: 18px;
  stroke: var(--accent-secondary);
}

.sidebar-search {
  margin: 0 16px 10px;
  position: relative;
  display: flex;
  align-items: center;
}

.sidebar-search svg {
  position: absolute;
  left: 12px;
  width: 16px;
  height: 16px;
  stroke: var(--text-faint);
}

.sidebar-search input {
  width: 100%;
  padding: 8px 12px 8px 34px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.82rem;
  outline: none;
  transition: var(--transition);
}

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

.conversations-wrapper {
  flex: 1;
  overflow-y: auto;
  padding: 4px 12px;
}

.history-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  padding: 6px 8px;
}

.conversations-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.chat-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.88rem;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.chat-item:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
}

.chat-item.active {
  background: var(--sidebar-active);
  color: var(--text-main);
  font-weight: 600;
  border-left: 3px solid var(--accent-primary);
}

.chat-item-title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  padding-right: 8px;
}

.chat-item-actions {
  display: none;
  align-items: center;
  gap: 4px;
}

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

.chat-action-btn {
  background: none;
  border: none;
  color: var(--text-faint);
  cursor: pointer;
  padding: 2px;
  border-radius: 4px;
}

.chat-action-btn:hover {
  color: var(--text-main);
}

/* Sidebar Footer */
.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Local PC Folder Card in Sidebar */
.pc-folder-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.pc-folder-card:hover {
  border-color: var(--accent-cyan);
}

.pc-folder-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pc-folder-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #f59e0b;
  flex-shrink: 0;
}

.pc-folder-dot.connected {
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
}

.pc-folder-details {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.pc-folder-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-faint);
}

.pc-folder-name {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pc-folder-btn {
  width: 100%;
  padding: 5px 8px;
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.25);
  border-radius: 4px;
  color: var(--accent-cyan);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.pc-folder-btn:hover {
  background: rgba(6, 182, 212, 0.22);
}

.api-key-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.76rem;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #f59e0b;
}

.status-dot.active {
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
}

.status-dot.error {
  background: #ef4444;
}

.footer-links {
  display: flex;
  gap: 8px;
}

.footer-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

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

.footer-btn svg {
  width: 14px;
  height: 14px;
}

/* ==========================================================
   MAIN CONTENT & TOPBAR
   ========================================================== */

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 50% 0%, rgba(139, 92, 246, 0.08) 0%, transparent 60%);
}

.topbar {
  height: 60px;
  min-height: 60px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: rgba(var(--bg-app), 0.8);
  backdrop-filter: blur(12px);
  z-index: 20;
}

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

.topbar-corner-logo {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--grad-aurora);
  padding: 2px;
  box-shadow: 0 0 12px rgba(139, 92, 246, 0.4);
  display: flex;
  overflow: hidden;
  flex-shrink: 0;
}

.topbar-corner-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: calc(var(--radius-sm) - 2px);
}

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

.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.icon-btn:hover {
  background: var(--bg-card);
  border-color: var(--border-color);
  color: var(--text-main);
}

.icon-btn svg {
  width: 18px;
  height: 18px;
}

/* Model Pill Selector */
.model-pill-container {
  position: relative;
}

.model-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.model-pill:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 0 12px var(--border-glow);
}

.model-color-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 0 6px var(--accent-primary);
}

.model-tag.best-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #f59e0b, #ec4899);
  color: #fff;
  text-transform: uppercase;
}

.model-pill svg {
  width: 14px;
  height: 14px;
  stroke: var(--text-muted);
  transition: transform 0.2s;
}

.model-pill-container.open .model-pill svg {
  transform: rotate(180deg);
}

/* Dropdown Menu */
.model-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  width: 340px;
  background: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.45);
  display: none;
  flex-direction: column;
  z-index: 100;
  animation: slideDown 0.18s ease-out;
  overflow: hidden;
}

.model-pill-container.open .model-dropdown-menu {
  display: flex;
}

.dropdown-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
}

.free-pill {
  font-size: 0.68rem;
  background: rgba(16, 185, 129, 0.18);
  color: #10b981;
  padding: 2px 8px;
  border-radius: 99px;
  font-weight: 700;
}

.dropdown-models-list {
  max-height: 380px;
  overflow-y: auto;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.model-option-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

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

.model-option-item.selected {
  background: var(--sidebar-active);
  border-left: 3px solid var(--accent-primary);
}

.option-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.option-icon {
  font-size: 1.2rem;
}

.option-info {
  display: flex;
  flex-direction: column;
}

.option-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
}

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

.option-badge {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 99px;
}

.dropdown-footer {
  padding: 8px 12px;
  border-top: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.15);
}

.custom-model-link {
  width: 100%;
  padding: 6px;
  background: none;
  border: none;
  color: var(--accent-primary);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
}

.custom-model-link:hover {
  text-decoration: underline;
}

/* Theme Menu */
.theme-dropdown-container {
  position: relative;
}

.theme-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 210px;
  background: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.45);
  display: none;
  flex-direction: column;
  padding: 8px;
  z-index: 100;
  gap: 4px;
}

.theme-dropdown-container.open .theme-menu {
  display: flex;
}

.theme-menu-title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-faint);
  padding: 4px 8px;
}

.theme-opt {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.theme-opt:hover {
  background: var(--bg-card-hover);
}

.theme-opt.active {
  background: var(--sidebar-active);
  font-weight: 700;
}

.theme-swatch {
  width: 14px;
  height: 14px;
  border-radius: 50%;
}

.theme-swatch.aurora { background: linear-gradient(135deg, #ec4899, #8b5cf6, #06b6d4); }
.theme-swatch.sunset { background: linear-gradient(135deg, #f43f5e, #f59e0b); }
.theme-swatch.cyber { background: linear-gradient(135deg, #06b6d4, #3b82f6); }
.theme-swatch.violet { background: linear-gradient(135deg, #9333ea, #ec4899); }
.theme-swatch.emerald { background: linear-gradient(135deg, #10b981, #06b6d4); }
.theme-swatch.light { background: linear-gradient(135deg, #f59e0b, #6366f1); }

/* ==========================================================
   CHAT VIEWPORT & WELCOME SCREEN
   ========================================================== */

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

.welcome-screen {
  max-width: 780px;
  width: 100%;
  margin: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 30px 10px;
}

.chat-dialog-icon-wrapper {
  display: inline-flex;
  vertical-align: middle;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--grad-aurora);
  padding: 2px;
  box-shadow: 0 0 14px rgba(139, 92, 246, 0.45);
  margin-right: 10px;
  overflow: hidden;
  transform: translateY(-2px);
}

.chat-dialog-icon {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.welcome-title {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.gradient-text {
  background: var(--grad-aurora);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.welcome-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 580px;
  margin-bottom: 24px;
}

.active-badge-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 36px;
}

.active-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.active-pill.openrouter-free {
  border-color: rgba(16, 185, 129, 0.3);
  color: #10b981;
}

.pulsing-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 0 8px var(--accent-primary);
  animation: blink 2s infinite;
}

.prompt-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  width: 100%;
  max-width: 660px;
  margin: 0 auto;
  text-align: left;
}

.prompt-card {
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.prompt-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: var(--grad-glow);
}

.card-icon {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.card-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.card-desc {
  font-size: 0.74rem;
  color: var(--text-muted);
  line-height: 1.35;
}

/* ==========================================================
   MESSAGES CONTAINER & BUBBLES
   ========================================================== */

.messages-container {
  width: 100%;
  max-width: 840px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-bottom: 20px;
}

.message-row {
  display: flex;
  gap: 14px;
  width: 100%;
  animation: fadeIn 0.25s ease-out;
}

.message-row.user {
  justify-content: flex-end;
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-weight: 700;
  font-size: 0.95rem;
}

.avatar.bot {
  background: var(--grad-aurora);
  padding: 1.5px;
  box-shadow: 0 0 14px rgba(139, 92, 246, 0.45);
  overflow: hidden;
}

.avatar.bot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: calc(var(--radius-md) - 1.5px);
}

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

.message-row.user .message-bubble-wrapper {
  align-items: flex-end;
}

.message-bubble {
  padding: 14px 18px;
  border-radius: var(--radius-lg);
  font-size: 0.95rem;
  line-height: 1.65;
  word-break: break-word;
  position: relative;
}

/* User Bubble: Vibrant gradient */
.message-row.user .message-bubble {
  background: var(--grad-user);
  color: #ffffff;
  border-bottom-right-radius: 4px;
  box-shadow: 0 4px 18px rgba(124, 58, 237, 0.28);
}

/* Bot Bubble: Glassmorphic with luminous border */
.message-row.bot .message-bubble {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-top-left-radius: 4px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
}

/* DeepSeek R1 / Reasoning collapsible container */
.reasoning-box {
  margin-bottom: 12px;
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: var(--radius-md);
  background: rgba(6, 182, 212, 0.05);
  overflow: hidden;
}

.reasoning-header {
  padding: 8px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-cyan);
  user-select: none;
}

.reasoning-header:hover {
  background: rgba(6, 182, 212, 0.1);
}

.reasoning-content {
  padding: 10px 14px;
  font-size: 0.82rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(6, 182, 212, 0.2);
  line-height: 1.5;
  max-height: 250px;
  overflow-y: auto;
  white-space: pre-wrap;
  font-style: italic;
}

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

/* Message Actions & Meta */
.message-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
  font-size: 0.72rem;
  color: var(--text-faint);
}

.message-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  opacity: 0;
  transition: opacity 0.2s;
}

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

.action-chip-btn {
  background: none;
  border: none;
  color: var(--text-faint);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 6px;
  border-radius: 4px;
  font-size: 0.72rem;
  transition: var(--transition);
}

.action-chip-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
}

/* Markdown typography */
.message-bubble p {
  margin-bottom: 10px;
}
.message-bubble p:last-child {
  margin-bottom: 0;
}
.message-bubble ul, .message-bubble ol {
  margin-left: 20px;
  margin-bottom: 10px;
}
.message-bubble li {
  margin-bottom: 4px;
}
.message-bubble blockquote {
  border-left: 3px solid var(--accent-primary);
  padding-left: 12px;
  margin: 10px 0;
  color: var(--text-muted);
  font-style: italic;
}
.message-bubble table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 0.85rem;
}
.message-bubble th, .message-bubble td {
  border: 1px solid var(--border-color);
  padding: 8px 10px;
  text-align: left;
}
.message-bubble th {
  background: rgba(255, 255, 255, 0.05);
}

/* Code Blocks */
.code-block-wrapper {
  margin: 14px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: #10121d;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 14px;
  background: #181b2a;
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
}

.copy-code-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  padding: 2px 6px;
  border-radius: 4px;
}

.copy-code-btn:hover {
  color: #fff;
}

pre {
  margin: 0;
  padding: 14px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.5;
}

code:not(pre code) {
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.84em;
  color: var(--accent-secondary);
}

/* ==========================================================
   INPUT DOCK
   ========================================================== */

.input-dock {
  width: 100%;
  max-width: 840px;
  margin: 0 auto;
  padding: 0 20px 16px;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 10;
}

.generating-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  margin-bottom: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  box-shadow: var(--grad-glow);
  animation: slideUp 0.2s ease-out;
}

.generating-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
}

.wave-bar {
  width: 3px;
  height: 14px;
  background: var(--accent-primary);
  border-radius: 2px;
  animation: wave 1s infinite ease-in-out;
}
.wave-bar:nth-child(2) { animation-delay: 0.15s; background: var(--accent-secondary); }
.wave-bar:nth-child(3) { animation-delay: 0.3s; background: var(--accent-cyan); }

.gen-text {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

.stop-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ef4444;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.stop-btn:hover {
  background: #ef4444;
  color: #fff;
}

.stop-btn svg {
  width: 12px;
  height: 12px;
}

.input-wrapper {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 12px 16px 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  transition: var(--transition);
  position: relative;
}

.input-wrapper:focus-within {
  border-color: var(--accent-primary);
  box-shadow: 0 0 20px var(--border-glow);
}

#chatInput {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 0.96rem;
  line-height: 1.5;
  resize: none;
  max-height: 180px;
  min-height: 24px;
}

#chatInput::placeholder {
  color: var(--text-faint);
}

.input-actions-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  padding-top: 6px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.input-left-tools {
  display: flex;
  align-items: center;
  gap: 8px;
}

.input-model-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  font-size: 0.75rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.input-model-chip:hover {
  border-color: var(--accent-primary);
  color: var(--text-main);
}

.chip-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-primary);
}

.tool-btn {
  background: transparent;
  border: none;
  color: var(--text-faint);
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

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

.tool-btn svg {
  width: 16px;
  height: 16px;
}

.send-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--grad-primary);
  border: none;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.send-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  filter: grayscale(1);
}

.send-btn:not(:disabled):hover {
  transform: scale(1.05);
  box-shadow: 0 0 16px var(--accent-primary);
}

.send-btn svg {
  width: 16px;
  height: 16px;
}

.footer-disclaimer {
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-faint);
  margin-top: 8px;
}

/* ==========================================================
   MODALS
   ========================================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal-backdrop.open {
  display: flex;
  animation: fadeIn 0.15s ease-out;
}

.modal-dialog {
  background: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 540px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  max-height: 90vh;
}

.modal-dialog.modal-lg {
  max-width: 760px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

.modal-title svg {
  width: 20px;
  height: 20px;
  stroke: var(--accent-primary);
}

.close-modal-btn {
  background: none;
  border: none;
  font-size: 1.4rem;
  color: var(--text-muted);
  cursor: pointer;
}

.close-modal-btn:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

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

.form-label {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.link-label {
  color: var(--accent-cyan);
  text-decoration: none;
  font-size: 0.78rem;
}

.link-label:hover {
  text-decoration: underline;
}

.input-with-action {
  position: relative;
  display: flex;
  align-items: center;
}

.input-with-action input,
.form-group textarea,
.custom-model-input-row input {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 0.88rem;
  outline: none;
  transition: var(--transition);
}

.input-with-action input:focus,
.form-group textarea:focus,
.custom-model-input-row input:focus {
  border-color: var(--accent-primary);
}

.input-action-btn {
  position: absolute;
  right: 10px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.provider-shortcuts {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 6px 0;
}

.provider-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.76rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}

.provider-badge.groq {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: #f59e0b;
}

.provider-badge.groq:hover {
  background: rgba(245, 158, 11, 0.22);
}

.provider-badge.gemini {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: #10b981;
}

.provider-badge.gemini:hover {
  background: rgba(16, 185, 129, 0.22);
}

.form-hint {
  font-size: 0.74rem;
  color: var(--text-faint);
  line-height: 1.4;
}

.prompt-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}

.preset-tag {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 3px 10px;
  font-size: 0.72rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.preset-tag:hover {
  border-color: var(--accent-primary);
  color: var(--text-main);
}

/* Slider */
.slider-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.slider-value {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

input[type="range"] {
  accent-color: var(--accent-primary);
  cursor: pointer;
}

.slider-ticks {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-faint);
}

/* PC Local Storage in Modal */
.pc-storage-section {
  background: rgba(6, 182, 212, 0.05);
  border: 1px solid rgba(6, 182, 212, 0.25);
  border-radius: var(--radius-md);
  padding: 14px;
}

.privacy-tag {
  font-size: 0.7rem;
  font-weight: 700;
  color: #10b981;
  background: rgba(16, 185, 129, 0.15);
  padding: 2px 7px;
  border-radius: 99px;
  text-transform: uppercase;
}

.pc-storage-box {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 4px;
}

.pc-storage-status-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pc-storage-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #f59e0b;
}

.pc-storage-dot.connected {
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
}

.pc-storage-path {
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--text-main);
  font-family: var(--font-mono);
}

.pc-storage-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.pc-storage-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 6px;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.78rem;
}

/* Vercel Banner */
.vercel-callout {
  display: flex;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.callout-icon {
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
}

.callout-title {
  font-size: 0.84rem;
  font-weight: 700;
  color: #fff;
}

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

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  background: rgba(0, 0, 0, 0.1);
}

.btn {
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
}

.btn-primary {
  background: var(--grad-primary);
  color: #fff;
  box-shadow: 0 0 14px rgba(139, 92, 246, 0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 20px var(--accent-primary);
}

/* Studio Tabs */
.modal-tabs {
  display: flex;
  gap: 6px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 10px;
}

.tab-btn {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  background: none;
  border: 1px solid transparent;
  color: var(--text-muted);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

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

.tab-btn.active {
  background: var(--sidebar-active);
  border-color: var(--accent-primary);
  color: var(--text-main);
}

.tab-pane {
  display: none;
  flex-direction: column;
  gap: 14px;
}

.tab-pane.active {
  display: flex;
}

.tab-description {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.models-grid, .embeddings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
  max-height: 320px;
  overflow-y: auto;
  padding: 4px;
}

.model-card {
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 8px;
}

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

.model-card.active {
  border-color: var(--accent-primary);
  background: var(--sidebar-active);
  box-shadow: 0 0 16px var(--border-glow);
}

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

.card-name-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.card-m-name {
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--text-main);
}

.card-m-desc {
  font-size: 0.74rem;
  color: var(--text-muted);
  line-height: 1.35;
}

.card-badge {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 99px;
  color: #fff;
}

.custom-model-box {
  background: rgba(0, 0, 0, 0.15);
  border: 1px solid var(--border-color);
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.custom-model-input-row {
  display: flex;
  gap: 8px;
}

/* Embeddings Tester */
.tester-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.tester-col textarea {
  width: 100%;
  padding: 10px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.84rem;
  resize: vertical;
}

.tester-action-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.active-embed-tag {
  font-size: 0.76rem;
  color: var(--accent-emerald);
  font-weight: 600;
}

.similarity-result-card {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.25);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.similarity-score-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.score-label {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-main);
}

.score-percentage {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--accent-emerald);
}

.meter-bar-container {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 99px;
  overflow: hidden;
}

.meter-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #10b981, #06b6d4);
  width: 0%;
  transition: width 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.embed-meta {
  font-size: 0.74rem;
  color: var(--text-muted);
}

/* ==========================================================
   TOAST NOTIFICATIONS
   ========================================================== */

.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 9999;
}

.toast {
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 0.84rem;
  font-weight: 500;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: slideLeft 0.2s ease-out;
}

.toast.success {
  border-color: rgba(16, 185, 129, 0.4);
}
.toast.error {
  border-color: rgba(239, 68, 68, 0.4);
}

/* ==========================================================
   ANIMATIONS & KEYFRAMES
   ========================================================== */

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

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

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

@keyframes slideLeft {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes blink {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

@keyframes wave {
  0%, 100% { height: 6px; }
  50% { height: 18px; }
}

@keyframes pulseGlow {
  0% { transform: scale(1); filter: drop-shadow(0 0 12px rgba(139, 92, 246, 0.4)); }
  100% { transform: scale(1.04); filter: drop-shadow(0 0 24px rgba(236, 72, 153, 0.6)); }
}

/* ==========================================================
   CREATOR ATTRIBUTION BADGE (Dr Raouf Roshdy)
   ========================================================== */
.footer-disclaimer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-align: center;
  font-size: 0.76rem;
  color: var(--text-faint);
  padding: 4px 10px 6px;
}

.footer-note {
  opacity: 0.85;
}

.footer-creator-credit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 4px;
  padding: 4px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  color: var(--text-muted);
  font-size: 0.82rem;
  backdrop-filter: blur(8px);
  transition: all 0.2s ease;
}

.footer-creator-credit:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(139, 92, 246, 0.35);
  box-shadow: 0 0 12px rgba(139, 92, 246, 0.2);
}

.creator-credit-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid #8b5cf6;
  box-shadow: 0 0 8px rgba(139, 92, 246, 0.5);
  flex-shrink: 0;
}

.creator-credit-name {
  color: var(--text-main);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.sidebar-creator-attribution {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  margin: 0 10px 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.sidebar-creator-attribution:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(139, 92, 246, 0.3);
}

.creator-sidebar-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid #8b5cf6;
  box-shadow: 0 0 10px rgba(139, 92, 246, 0.45);
  flex-shrink: 0;
}

.creator-sidebar-details {
  display: flex;
  flex-direction: column;
}

.creator-sidebar-by {
  font-size: 0.68rem;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.creator-sidebar-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
}

/* Mobile Sidebar Backdrop Overlay (Instant appear/disappear) */
.sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 85;
  display: none !important;
  transition: none !important;
}

.sidebar-backdrop.active {
  display: block !important;
}

/* ==========================================================
   RESPONSIVE DESIGN (MOBILE & TABLET OPTIMIZATIONS)
   ========================================================== */

@media (max-width: 768px) {
  body, .app-container {
    height: 100dvh;
    max-height: 100dvh;
    overflow: hidden;
  }

  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 82%;
    max-width: 300px;
    z-index: 100;
    display: none !important;
    transform: none !important;
    transition: none !important;
    box-shadow: 0 0 45px rgba(0, 0, 0, 0.85);
  }

  .sidebar.open {
    display: flex !important;
    transform: none !important;
    transition: none !important;
  }

  .close-sidebar-btn {
    display: flex;
  }

  .topbar {
    padding: 0 10px;
    height: 54px;
  }

  .topbar-left {
    gap: 8px;
  }

  .topbar-corner-logo {
    width: 28px;
    height: 28px;
  }

  .model-pill {
    padding: 4px 10px;
    max-width: 175px;
  }

  .model-name {
    max-width: 95px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.82rem;
  }

  .model-tag {
    display: none !important;
  }

  .welcome-screen {
    padding: 20px 12px;
  }

  .welcome-title {
    font-size: 1.65rem;
  }

  .chat-dialog-icon-wrapper {
    width: 30px;
    height: 30px;
  }

  .welcome-subtitle {
    font-size: 0.88rem;
    margin-bottom: 16px;
  }

  .prompt-cards-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .prompt-card {
    padding: 12px;
  }

  .input-dock {
    padding: 0 8px max(10px, env(safe-area-inset-bottom, 10px));
  }

  .input-wrapper {
    padding: 8px 10px 8px;
    border-radius: var(--radius-lg);
  }

  .chat-viewport {
    padding: 12px 10px;
  }

  .message-row {
    padding: 10px 4px;
  }

  .message-bubble {
    max-width: 92%;
    font-size: 0.92rem;
    padding: 12px 14px;
  }

  .tester-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .modal-dialog {
    width: 94%;
    max-width: 94%;
    max-height: 90dvh;
    padding: 18px 14px;
    margin: auto;
  }
}

@media (max-width: 480px) {
  .welcome-title {
    font-size: 1.35rem;
  }

  .welcome-hero {
    margin-bottom: 20px;
  }

  .model-pill {
    max-width: 130px;
  }

  .model-name {
    max-width: 70px;
  }

  .input-model-chip {
    max-width: 140px;
  }

  .footer-disclaimer {
    font-size: 0.7rem;
  }

  .footer-creator-credit {
    font-size: 0.74rem;
    padding: 3px 10px;
  }

  .creator-credit-avatar {
    width: 20px;
    height: 20px;
  }
}