/* ═══════════════════════════════════════════════════════════════════
   LLM Chat — Modern AI Workspace Design System
   Inspired by Linear, Raycast, Claude & Apple HIG
   ═══════════════════════════════════════════════════════════════════ */

/* ─── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Color Palette - Deep Obsidian & Electric Indigo */
  --bg-primary: #07080f;
  --bg-secondary: #0c0e18;
  --bg-tertiary: #131627;
  --bg-card: rgba(21, 25, 45, 0.78);
  --bg-card-hover: rgba(30, 35, 62, 0.85);
  --bg-hover: rgba(99, 102, 241, 0.12);
  --bg-input: rgba(18, 22, 39, 0.82);

  --border: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.14);
  --border-accent: rgba(99, 102, 241, 0.35);

  --accent: #6366f1;
  --accent-light: #a5b4fc;
  --accent-dark: #4f46e5;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  --accent-glow: 0 0 24px rgba(99, 102, 241, 0.32);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --user-msg-bg: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  --assistant-msg-bg: rgba(18, 22, 38, 0.7);
  --assistant-msg-border: rgba(255, 255, 255, 0.07);

  --danger: #ef4444;
  --danger-hover: #dc2626;
  --danger-bg: rgba(239, 68, 68, 0.12);
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.12);
  --warning: #f59e0b;

  /* Radius System */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Shadow System */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.55);
  --shadow-glow: 0 0 35px rgba(99, 102, 241, 0.22);
  --glass-shadow: 0 16px 40px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.07);

  /* Layout Dimensions */
  --sidebar-width: 290px;
  --header-height: 62px;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Outfit', 'Inter', Roboto, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --font-mono: 'Cascadia Code', 'JetBrains Mono', 'Fira Code', Consolas, monospace;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 240ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 360ms cubic-bezier(0.16, 1, 0.3, 1);
}

html, body {
  height: 100%;
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  background-image:
    radial-gradient(ellipse 60% 40% at 85% -10%, rgba(99, 102, 241, 0.14), transparent 60%),
    radial-gradient(ellipse 50% 35% at 15% 100%, rgba(139, 92, 246, 0.09), transparent 50%),
    linear-gradient(180deg, #07080f 0%, #0a0c16 100%);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

::selection {
  background: rgba(99, 102, 241, 0.35);
  color: #ffffff;
}

/* ─── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border-radius: 9999px;
  transition: background var(--transition-fast);
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.24);
}

button, input, textarea, select {
  font-family: inherit;
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent-light);
  outline-offset: 2px;
}

/* ─── App Container ─────────────────────────────────────────── */
.app-container {
  display: flex;
  height: 100vh;
  width: 100%;
  position: relative;
  overflow: hidden;
}

/* ─── Sidebar ───────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  height: 100vh;
  background: #090a12;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), margin-left var(--transition-normal);
  z-index: 100;
  box-shadow: 4px 0 24px rgba(0, 0, 0, 0.25);
}

.sidebar.collapsed {
  margin-left: calc(var(--sidebar-width) * -1);
}

.sidebar-header {
  padding: 20px 18px 12px;
  flex-shrink: 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.4px;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: var(--accent-gradient);
  border-radius: var(--radius-sm);
  color: #fff;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35);
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.logo:hover .logo-icon {
  transform: rotate(4deg) scale(1.04);
}

.logo-text {
  font-weight: 700;
  background: linear-gradient(135deg, #ffffff 40%, #c4b5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-badge {
  font-size: 9.5px;
  font-weight: 750;
  letter-spacing: 0.05em;
  padding: 2px 7px;
  border-radius: 9999px;
  background: rgba(99, 102, 241, 0.18);
  border: 1px solid rgba(99, 102, 241, 0.4);
  color: var(--accent-light);
  white-space: nowrap;
}

/* New Chat Button */
.btn-new-chat {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: calc(100% - 20px);
  margin: 8px 10px 14px;
  padding: 10px 14px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.14) 0%, rgba(139, 92, 246, 0.08) 100%);
  border: 1px solid rgba(124, 92, 255, 0.28);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.btn-new-chat svg {
  color: var(--accent-light);
  transition: transform var(--transition-fast);
}

.btn-new-chat:hover {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25) 0%, rgba(139, 92, 246, 0.16) 100%);
  border-color: rgba(165, 180, 252, 0.6);
  box-shadow: 0 4px 18px rgba(99, 102, 241, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transform: translateY(-1px);
}

.btn-new-chat:hover svg {
  transform: rotate(90deg);
}

/* Conversation List */
.conversation-list {
  flex: 1;
  overflow-y: auto;
  padding: 0 8px;
}

.convo-item {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 11px 12px;
  margin-bottom: 4px;
  min-height: 56px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  border: 1px solid transparent;
  background: transparent;
}

.convo-item:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.04);
}

.convo-item.active {
  background: linear-gradient(90deg, rgba(99, 102, 241, 0.18) 0%, rgba(99, 102, 241, 0.05) 100%);
  border-color: rgba(124, 92, 255, 0.35);
  box-shadow: inset 3px 0 0 var(--accent);
}

.convo-item .convo-icon {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 15px;
  transition: all var(--transition-fast);
}

.convo-item:hover .convo-icon {
  color: var(--text-secondary);
  border-color: rgba(255, 255, 255, 0.12);
}

.convo-item.active .convo-icon {
  background: var(--accent-gradient);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.4);
}

.convo-info {
  flex: 1;
  min-width: 0;
}

.convo-title {
  font-size: 14.5px;
  font-weight: 550;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 3px;
  line-height: 1.35;
  transition: color var(--transition-fast);
}

.convo-item:hover .convo-title {
  color: var(--text-primary);
}

.convo-item.active .convo-title {
  color: #ffffff;
  font-weight: 600;
}

.convo-meta {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0.88;
  line-height: 1.3;
}

.convo-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.convo-item:hover .convo-actions {
  opacity: 1;
}

.btn-convo-action {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 7px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.btn-convo-move:hover {
  color: var(--accent-light);
}

.btn-convo-action[data-action="delete"]:hover {
  background: var(--danger-bg);
  color: var(--danger);
}

/* Drag and drop reordering */
.convo-drag-handle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 12px;
  height: 24px;
  color: var(--text-muted);
  opacity: 0;
  cursor: grab;
  transition: opacity var(--transition-fast), color var(--transition-fast);
  flex-shrink: 0;
  margin-left: -4px;
  margin-right: -2px;
}

.convo-item:hover .convo-drag-handle {
  opacity: 0.55;
}

.convo-drag-handle:hover {
  opacity: 1 !important;
  color: var(--accent-light);
}

.convo-item.dragging {
  opacity: 0.45;
  background: rgba(99, 102, 241, 0.12) !important;
  border: 1px dashed var(--accent) !important;
}

.convo-item.drag-over-top {
  border-top: 2px solid var(--accent) !important;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.convo-item.drag-over-bottom {
  border-bottom: 2px solid var(--accent) !important;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.sidebar-group.drag-over-group {
  background: rgba(99, 102, 241, 0.05);
  border-radius: var(--radius-sm);
  outline: 1px dashed var(--accent);
}

.sidebar-group-empty {
  padding: 10px 12px;
  margin: 4px 6px 8px 6px;
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  border: 1px dashed rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xs);
  user-select: none;
  transition: all var(--transition-fast);
}

.sidebar-group.drag-over-group .sidebar-group-empty {
  border-color: var(--accent);
  color: var(--accent-light);
  background: rgba(99, 102, 241, 0.12);
}

.empty-conversations {
  padding: 48px 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.7;
}

/* Sidebar Groups */
.sidebar-group {
  margin-top: 6px;
}

.sidebar-group-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  user-select: none;
  transition: background var(--transition-fast);
}

.sidebar-group-head:hover {
  background: rgba(255, 255, 255, 0.03);
}

.sidebar-group-arrow {
  flex-shrink: 0;
  color: var(--text-muted);
  transition: transform var(--transition-fast);
}

.sidebar-group.collapsed .sidebar-group-arrow {
  transform: rotate(-90deg);
}

.sidebar-group-name {
  flex: 1;
  min-width: 0;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-group-count {
  flex-shrink: 0;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  border-radius: 9999px;
  padding: 1px 7px;
}

.btn-group-new {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 5px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  opacity: 0;
  transition: all var(--transition-fast);
}

.sidebar-group-head:hover .btn-group-new {
  opacity: 1;
}

.btn-group-new:hover {
  background: var(--bg-hover);
  color: var(--accent-light);
}

.sidebar-group-body {
  padding-left: 2px;
}

.sidebar-group.collapsed .sidebar-group-body {
  display: none;
}

/* Move Popover */
.convo-move-popover {
  position: absolute;
  top: 100%;
  right: 4px;
  min-width: 160px;
  max-height: 260px;
  overflow-y: auto;
  background: #121627;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  padding: 5px;
  z-index: 250;
  animation: modalIn 0.15s ease;
}

.convo-move-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  padding: 6px 10px 4px;
  letter-spacing: 0.04em;
}

.convo-move-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast);
}

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

.convo-move-item.active {
  color: var(--accent-light);
  font-weight: 600;
}

.convo-move-check {
  color: var(--accent-light);
  font-size: 12px;
}

/* Sidebar Footer */
.sidebar-footer {
  flex-shrink: 0;
  padding: 12px 10px;
  border-top: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.btn-sidebar {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 12px;
  background: transparent;
  border: none;
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-sidebar svg {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

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

.btn-sidebar:hover svg {
  color: var(--accent-light);
}

/* ─── Sidebar Toggle (Mobile) ───────────────────────────────── */
.sidebar-toggle {
  display: none;
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 200;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  background: #121627;
  color: var(--text-primary);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.sidebar-toggle:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
}

/* ─── Main Content Canvas ───────────────────────────────────── */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100vh;
  position: relative;
  isolation: isolate;
  background:
    radial-gradient(ellipse 70% 50% at 50% 30%, rgba(99, 102, 241, 0.06), transparent 60%),
    linear-gradient(180deg, #0b0d18 0%, #080911 100%);
}

.main-content::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.12;
  contain: strict;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 52px 52px;
}

/* ─── Header ────────────────────────────────────────────────── */
.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: 0 24px;
  border-bottom: 1px solid var(--border);
  background: #0b0d18;
  flex-shrink: 0;
  z-index: 50;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.03);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.conversation-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.2px;
  max-width: min(44vw, 480px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.conversation-rename-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  padding: 0;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.conversation-rename-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--accent-light);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

/* Group Selector Pill */
.group-selector {
  position: relative;
}

.group-selector-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  max-width: 170px;
  padding: 7px 12px;
  background: rgba(21, 25, 45, 0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.group-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
  flex-shrink: 0;
}

.group-selector-btn:hover {
  color: var(--text-primary);
  border-color: rgba(124, 92, 255, 0.4);
  background: rgba(28, 33, 58, 0.9);
}

#groupSelectorLabel {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chevron-arrow {
  color: var(--text-muted);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.group-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 240px;
  max-height: 320px;
  overflow-y: auto;
  background: #101424;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 250;
  padding: 4px;
  animation: modalIn 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

.group-dropdown-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 9px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.group-dropdown-item:hover {
  background: rgba(255, 255, 255, 0.05);
}

.group-dropdown-item.active {
  background: rgba(99, 102, 241, 0.15);
  border-left: 2px solid var(--accent);
}

.group-dropdown-name {
  font-size: 13px;
  color: var(--text-primary);
  font-weight: 500;
}

.group-dropdown-meta {
  font-size: 11px;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.group-dropdown-item.manage {
  display: block;
  border-top: 1px solid var(--border);
  margin-top: 4px;
  padding-top: 9px;
}

.group-dropdown-item.manage .group-dropdown-name {
  color: var(--accent-light);
  font-weight: 600;
}

/* Model Selector Pill */
.model-selector {
  position: relative;
  display: flex;
  align-items: center;
}

.model-selector-sparkle {
  position: absolute;
  left: 11px;
  color: var(--accent-light);
  pointer-events: none;
  opacity: 0.8;
}

.model-input {
  width: 220px;
  padding: 7px 32px 7px 32px;
  background: rgba(21, 25, 45, 0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 500;
  transition: all var(--transition-fast);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.model-input:hover {
  border-color: rgba(124, 92, 255, 0.4);
  background: rgba(28, 33, 58, 0.9);
}

.model-input:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(28, 33, 58, 0.95);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

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

.model-dropdown-arrow {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 5px;
  transition: all var(--transition-fast);
}

.model-dropdown-arrow:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.model-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  max-height: 260px;
  overflow-y: auto;
  background: #101424;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 250;
  padding: 4px;
  animation: modalIn 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

.model-dropdown-item {
  padding: 9px 12px;
  font-size: 13px;
  color: var(--text-primary);
  cursor: pointer;
  border-radius: 8px;
  transition: all var(--transition-fast);
}

.model-dropdown-item:hover {
  background: rgba(255, 255, 255, 0.06);
}

.model-dropdown-item.active {
  background: var(--accent);
  color: #ffffff;
}

.model-dropdown-item .model-name {
  font-weight: 500;
  font-family: var(--font-mono);
  font-size: 12px;
}

.model-dropdown-item .model-hint {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.model-dropdown-item.active .model-hint {
  color: rgba(255, 255, 255, 0.8);
}

.model-dropdown-empty {
  padding: 14px;
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
}

/* ─── Messages Canvas ───────────────────────────────────────── */
.messages-container {
  flex: 1;
  overflow-y: auto;
  padding: 24px 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  max-width: 920px;
  margin: 0 auto;
  contain: layout;
  transform: translateZ(0);
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

/* ─── Welcome Screen (Hero Landing) ─────────────────────────── */
.welcome-screen {
  flex: 1;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
  margin: auto;
  width: 100%;
  max-width: 760px;
}

.welcome-hero-glow {
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 360px;
  height: 360px;
  background: radial-gradient(circle at center, rgba(99, 102, 241, 0.18) 0%, rgba(139, 92, 246, 0.06) 45%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  contain: strict;
  will-change: opacity;
  animation: pulseGlow 5s ease-in-out infinite alternate;
}

@keyframes pulseGlow {
  0% { opacity: 0.55; }
  100% { opacity: 0.95; }
}

.welcome-icon,
.welcome-store-badge {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 120px;
  height: 120px;
  margin: 0 auto 20px;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.22), rgba(139, 92, 246, 0.1));
  border: 1px solid rgba(165, 180, 252, 0.35);
  color: var(--accent-light);
  box-shadow: 0 0 0 8px rgba(99, 102, 241, 0.06), 0 16px 40px rgba(0, 0, 0, 0.45);
  animation: floatIcon 4s ease-in-out infinite alternate;
  overflow: hidden;
}

.welcome-hero-banner {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.welcome-store-badge:hover .welcome-hero-banner {
  transform: scale(1.08);
}

@keyframes floatIcon {
  0% { transform: translateY(0); }
  100% { transform: translateY(-6px); }
}

.welcome-screen h2 {
  position: relative;
  z-index: 1;
  font-size: clamp(26px, 3.2vw, 34px);
  font-weight: 700;
  letter-spacing: -0.6px;
  margin-bottom: 8px;
  background: linear-gradient(135deg, #ffffff 40%, #c4b5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.welcome-screen p {
  position: relative;
  z-index: 1;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 34px;
  max-width: 480px;
  line-height: 1.6;
}

/* Suggestion Cards Matrix (2x2 Grid) */
.welcome-suggestions {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  width: 100%;
  max-width: 680px;
}

.suggestion-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  background: rgba(20, 24, 43, 0.88);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

.suggestion-chip-icon {
  font-size: 20px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.suggestion-chip-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.suggestion-chip-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.suggestion-chip-desc {
  font-size: 11px;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.suggestion-arrow {
  color: var(--text-muted);
  opacity: 0;
  transform: translateX(-4px);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.suggestion-chip:hover {
  background: rgba(28, 33, 60, 0.9);
  border-color: rgba(139, 92, 246, 0.45);
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.18);
  transform: translateY(-2px);
}

.suggestion-chip:hover .suggestion-arrow {
  opacity: 1;
  transform: translateX(0);
  color: var(--accent-light);
}

/* ─── Message Row & Bubbles ─────────────────────────────────── */
.load-earlier-bar {
  display: flex;
  justify-content: center;
  padding: 10px 0 16px;
  width: 100%;
}

.btn-load-earlier {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 12px;
  padding: 6px 16px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-load-earlier:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border-color: var(--accent);
}

.message {
  display: flex;
  gap: 14px;
  padding: 6px 0;
  position: relative;
  animation: messageIn 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  scroll-margin-top: 14px;
  contain: layout style;
}

@keyframes messageIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.message-avatar {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  margin-top: 2px;
}

.message.user .message-avatar {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.message.assistant .message-avatar {
  background: linear-gradient(135deg, rgba(30, 35, 60, 0.9), rgba(20, 24, 42, 0.9));
  color: var(--accent-light);
  border: 1px solid rgba(165, 180, 252, 0.25);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}

.message-body {
  flex: 1;
  min-width: 0;
}

/* Message Header & Action Toolbar */
.message-head {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 28px;
  min-height: 28px;
  margin-bottom: 6px;
  position: relative;
}

.message-head .message-role {
  font-size: 12px;
  font-weight: 600;
  margin-right: 6px;
  display: inline-flex;
  align-items: center;
}

.message.user .message-role {
  color: var(--accent-light);
}

.message.assistant .message-role {
  color: var(--text-secondary);
}

.message-model {
  margin-left: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  color: var(--accent-light);
  padding: 2px 8px;
  border-radius: 9999px;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.25);
}

.msg-interrupted-badge {
  margin-right: 6px;
  padding: 1px 8px;
  font-size: 11px;
  line-height: 1.6;
  color: #f59e0b;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 9999px;
  user-select: none;
  white-space: nowrap;
}

/* Message Hover Actions (Clean Dock - Pre-reserved Space) */
.message-branch-btn,
.message-copy-btn,
.message-regen-btn,
.message-edit-btn,
.message-del-btn {
  display: inline-flex;
  width: 24px;
  height: 24px;
  padding: 0;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
}

.message:hover .message-head .message-branch-btn,
.message:hover .message-head .message-copy-btn,
.message:hover .message-head .message-regen-btn,
.message:hover .message-head .message-edit-btn,
.message:hover .message-head .message-del-btn {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.message-copy-btn:hover,
.message-branch-btn:hover,
.message-regen-btn:hover,
.message-edit-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

.message-del-btn:hover {
  background: var(--danger-bg);
  color: var(--danger);
}

.message-copy-btn.copied {
  color: var(--success);
}

/* User Message Bubble */
.message.user .message-content {
  display: inline-block;
  background: var(--user-msg-bg);
  color: #ffffff;
  padding: 12px 18px;
  border-radius: 18px 18px 4px 18px;
  box-shadow: 0 4px 18px rgba(79, 70, 229, 0.3);
  max-width: 88%;
}

.message.user .message-content p {
  margin-bottom: 0;
  line-height: 1.6;
}

/* Assistant Message Styling */
.message.assistant .message-content {
  font-size: var(--msg-font-size, 14px);
  line-height: 1.75;
  color: var(--text-primary);
  word-break: break-word;
}

/* Reasoning Block (Thinking Chain) */
.reasoning-block {
  margin: 8px 0 12px;
  border: 1px solid rgba(139, 92, 246, 0.25);
  border-radius: var(--radius-sm);
  background: rgba(18, 22, 38, 0.7);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.reasoning-block summary {
  cursor: pointer;
  padding: 8px 12px;
  color: var(--accent-light);
  font-size: 12px;
  font-weight: 600;
  user-select: none;
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(99, 102, 241, 0.06);
  transition: background var(--transition-fast);
}

.reasoning-block summary:hover {
  background: rgba(99, 102, 241, 0.12);
}

.reasoning-block summary::before {
  content: '🧠';
  font-size: 13px;
}

.reasoning-content {
  padding: 10px 14px;
  border-top: 1px solid rgba(139, 92, 246, 0.15);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.65;
  max-height: 320px;
  overflow: auto;
  background: rgba(10, 12, 22, 0.5);
}

/* Markdown Elements in Assistant Message */
.message-content p { margin-bottom: 12px; }
.message-content p:last-child { margin-bottom: 0; }

.message-content ul, .message-content ol {
  margin: 10px 0;
  padding-left: 22px;
}
.message-content li { margin-bottom: 6px; }
.message-content li:last-child { margin-bottom: 0; }
.message-content ul li::marker { color: var(--accent-light); }
.message-content ol li::marker { color: var(--accent-light); font-weight: 600; }

.message-content h1, .message-content h2, .message-content h3,
.message-content h4, .message-content h5, .message-content h6 {
  margin: 24px 0 10px;
  line-height: 1.4;
  color: #ffffff;
  font-weight: 600;
}
.message-content h1 { font-size: 1.45em; }
.message-content h2 {
  font-size: 1.25em;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.message-content h3 { font-size: 1.15em; }
.message-content h4 { font-size: 1.05em; }

.message-content blockquote {
  border-left: 3px solid var(--accent);
  padding: 10px 16px;
  margin: 14px 0;
  background: rgba(99, 102, 241, 0.08);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
}
.message-content blockquote p { margin-bottom: 6px; }
.message-content blockquote p:last-child { margin-bottom: 0; }

.message-content code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 2px 7px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #e2e8f0;
}

/* macOS Terminal Style Code Blocks */
.message-content .code-block {
  margin: 14px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-md);
  background: #0b0d18;
}

.message-content .code-block-header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(22, 26, 46, 0.95);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

/* macOS Red Yellow Green Window Buttons */
.message-content .code-block-header::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ff5f56;
  box-shadow: 16px 0 0 #ffbd2e, 32px 0 0 #27c93f;
  margin-right: 32px;
  flex-shrink: 0;
}

.message-content .code-lang {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--accent-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-right: auto;
}

.message-content .code-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 11px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.message-content .code-copy-btn:hover {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.12);
}

.message-content .code-copy-btn.copied {
  color: #34d399;
  border-color: rgba(52, 211, 153, 0.4);
  background: rgba(52, 211, 153, 0.1);
}

.message-content .code-block pre {
  margin: 0;
  border: none;
  border-radius: 0;
}

.message-content pre code {
  display: block;
  padding: 16px 18px;
  overflow-x: auto;
  font-size: 0.92em;
  line-height: 1.68;
  background: #070912;
  border: none;
  border-radius: 0;
}

/* Markdown Tables */
.message-content table {
  display: block;
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 0.92em;
  overflow-x: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.message-content th, .message-content td {
  padding: 10px 16px;
  border: 1px solid var(--border);
  text-align: left;
}

.message-content th {
  background: rgba(255, 255, 255, 0.05);
  font-weight: 600;
  color: #ffffff;
}

.message-content tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.015);
}

.message-content tbody tr:hover {
  background: rgba(99, 102, 241, 0.06);
}

.message-content a {
  color: var(--accent-light);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.message-content a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.message-content img {
  max-width: 100%;
  border-radius: var(--radius-sm);
  margin: 8px 0;
  box-shadow: var(--shadow-md);
}

/* KaTeX Math */
.message-content .katex-display {
  margin: 14px 0;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 10px 0;
}

/* Stream Cursor & Pending */
.stream-pending code::after {
  content: '▌';
  margin-left: 2px;
  color: var(--accent-light);
  animation: streamCursor 0.85s steps(1) infinite;
}

@keyframes streamCursor { 50% { opacity: 0; } }

.katex-pending {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.92em;
  opacity: 0.75;
}

/* Cache & Token Usage Stats Badge */
.cache-stats {
  margin-top: 8px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 9999px;
  padding: 3px 10px;
}

/* Typing Indicator */
.typing-indicator {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 0;
}

.typing-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-light);
  animation: typingBounce 1.4s infinite both;
}

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

@keyframes typingBounce {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.35; }
  40% { transform: translateY(-6px); opacity: 1; }
}

/* Message Images & Attachments */
.message-images {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
}

.message-image-wrapper {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--border);
  transition: all var(--transition-fast);
}

.message-image-wrapper:hover {
  border-color: var(--accent);
  transform: scale(1.02);
  box-shadow: var(--shadow-md);
}

.message-image-wrapper img {
  display: block;
  max-width: 260px;
  max-height: 260px;
  object-fit: cover;
}

.message-files {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.message-file {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: 300px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  font-size: 12px;
}

.message-file-icon { color: var(--accent-light); font-size: 14px; }
.message-file-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Edit Textarea */
.edit-textarea {
  width: 100%;
  min-height: 70px;
  padding: 12px 14px;
  background: rgba(18, 22, 38, 0.9);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.6;
  resize: vertical;
  outline: none;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
}

.edit-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

.btn-edit-cancel,
.btn-edit-save {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 7px 16px;
  border-radius: var(--radius-xs);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}

.btn-edit-cancel {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

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

.btn-edit-save {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

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

/* Message Flash animation */
@keyframes msgFlash {
  0% { background: rgba(99, 102, 241, 0.25); }
  100% { background: transparent; }
}

.message.flash {
  animation: msgFlash 1.4s ease;
  border-radius: var(--radius-md);
}

/* Context Break Line (Ctrl+K) */
.context-break {
  display: flex;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  padding: 10px 0;
}

.context-break-line {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  padding: 4px 16px;
  border: 1px dashed rgba(255, 255, 255, 0.15);
  border-radius: 9999px;
  background: rgba(18, 22, 38, 0.75);
  transition: all var(--transition-fast);
}

.context-break:hover .context-break-line {
  color: var(--accent-light);
  border-color: var(--accent);
}

/* ─── Floating Topic Outline ────────────────────────────────── */
.chat-outline {
  position: absolute;
  top: 50%;
  height: min(60vh, 360px);
  left: max(10px, calc(10% - 44px));
  width: 330px;
  transform: translateY(-50%);
  z-index: 40;
  pointer-events: none;
}

.chat-outline.hidden {
  display: none;
}

.chat-outline-inner {
  width: 330px;
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: visible;
}

.chat-outline-head {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.chat-outline-list {
  flex: 1;
  width: 330px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none;
}

.chat-outline-list::-webkit-scrollbar {
  display: none;
}

.chat-outline-item {
  position: relative;
  display: flex;
  align-items: center;
  width: 34px;
  height: 18px;
  padding: 0 4px;
  margin: 0 0 2px;
  cursor: pointer;
  pointer-events: auto;
}

.chat-outline-marker {
  display: block;
  height: 3px;
  --marker-base-width: 14px;
  width: var(--marker-base-width);
  flex-shrink: 0;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.18);
  transition: all var(--transition-fast);
}

.chat-outline-item.outline-near .chat-outline-marker {
  width: calc(var(--marker-base-width) + var(--hover-boost, 0px));
  height: 4px;
  background: var(--accent-light);
  box-shadow: 0 0 10px rgba(165, 180, 252, 0.6);
  opacity: var(--hover-opacity, 1);
}

.chat-outline-text {
  display: none;
  position: absolute;
  left: 42px;
  top: 50%;
  transform: translateY(-50%);
  width: min(280px, calc(100vw - 110px));
  padding: 8px 12px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xs);
  background: #121626;
  box-shadow: var(--shadow-lg);
  color: var(--text-primary);
  font-size: 12px;
  line-height: 1.5;
  white-space: normal;
  overflow-wrap: anywhere;
  z-index: 50;
  animation: modalIn 0.15s ease;
}

.chat-outline-item:hover .chat-outline-text,
.chat-outline-item:focus-visible .chat-outline-text {
  display: block;
}

/* ─── Bottom Input Dock ─────────────────────────────────────── */
.input-area {
  flex-shrink: 0;
  padding: 10px 24px 18px;
  background: linear-gradient(180deg, rgba(11, 13, 24, 0) 0%, rgba(7, 8, 15, 0.95) 45%);
  position: relative;
  z-index: 50;
}

.input-container {
  max-width: 860px;
  margin: 0 auto;
  background: #15192d;
  border: 1px solid var(--border-light);
  border-radius: 24px;
  padding: 12px 16px;
  transition: all var(--transition-normal);
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.input-container:focus-within {
  border-color: rgba(139, 92, 246, 0.6);
  background: rgba(26, 31, 56, 0.95);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.22), 0 20px 48px rgba(0, 0, 0, 0.55);
}

/* Attachment Previews */
.attachment-previews {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

.attachment-previews:empty {
  display: none;
  margin: 0;
}

.image-preview-item {
  position: relative;
  width: 58px;
  height: 58px;
  border-radius: var(--radius-xs);
  overflow: hidden;
  border: 1px solid var(--border-light);
  flex-shrink: 0;
}

.image-preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-preview-remove {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.75);
  border: none;
  color: #fff;
  font-size: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.image-preview-item:hover .image-preview-remove {
  opacity: 1;
}

.file-preview-item {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: 260px;
  padding: 7px 28px 7px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  font-size: 12px;
}

.file-preview-icon { color: var(--accent-light); font-size: 15px; }
.file-preview-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-preview-size { color: var(--text-muted); white-space: nowrap; }

.file-preview-remove {
  position: absolute;
  top: 50%;
  right: 6px;
  transform: translateY(-50%);
  border: 0;
  background: transparent;
  color: var(--text-muted);
  font-size: 16px;
  cursor: pointer;
  line-height: 1;
}

.file-preview-remove:hover { color: var(--text-primary); }

/* PDF Native Multimodal Badges & Styling */
.file-preview-item.is-pdf {
  border-color: rgba(255, 77, 79, 0.4);
  background: rgba(255, 77, 79, 0.08);
}
.file-icon-pdf {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #ff4d4f;
  color: #fff !important;
  font-size: 9px !important;
  font-weight: 700;
  padding: 1px 4px;
  border-radius: 3px;
  letter-spacing: 0.5px;
  line-height: 1.2;
}
.file-preview-badge {
  display: inline-flex;
  align-items: center;
  background: rgba(255, 77, 79, 0.18);
  color: #ff7875;
  border: 1px solid rgba(255, 77, 79, 0.3);
  font-size: 10px;
  padding: 1px 5px;
  border-radius: 10px;
  font-weight: 500;
  white-space: nowrap;
}
.message-file.is-pdf {
  border-color: rgba(255, 77, 79, 0.35);
  background: rgba(255, 77, 79, 0.06);
}
.message-file-badge {
  font-size: 10px;
  background: rgba(255, 77, 79, 0.18);
  color: #ff7875;
  border: 1px solid rgba(255, 77, 79, 0.3);
  padding: 1px 5px;
  border-radius: 4px;
  margin-left: 2px;
  white-space: nowrap;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Input Row */
.input-row {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}

.btn-file-upload {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 38px;
  padding: 0 11px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-file-upload:hover {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
}

.message-input {
  flex: 1;
  border: none;
  background: transparent;
  color: #ffffff;
  font-size: 15px;
  line-height: 1.55;
  resize: none;
  min-height: 28px;
  max-height: 180px;
  outline: none;
  padding: 7px 4px;
}

.message-input::placeholder {
  color: #64748b;
}

.message-input:focus,
.message-input:focus-visible {
  outline: none;
  box-shadow: none;
}

.btn-send {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  border: none;
  background: var(--accent-gradient);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-send:hover {
  opacity: 0.95;
  transform: scale(1.06);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.55);
}

.btn-send:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Footer Hint below Input Box */
.input-footer-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 8px;
  font-size: 11px;
  color: var(--text-muted);
  user-select: none;
}

.input-footer-hint .hint-dot {
  opacity: 0.5;
}

.input-footer-hint .hint-ai {
  color: #555d77;
}

/* Easter Egg Bounce */
.message-input.easter-egg::placeholder {
  color: #f59e0b;
  font-weight: 500;
}

@keyframes inputBounce {
  0% { transform: scale(1); }
  35% { transform: scale(1.02) translateY(-2px); }
  70% { transform: scale(0.99); }
  100% { transform: scale(1); }
}

.input-container.bounce {
  animation: inputBounce 0.4s ease;
}

/* Loading Status Row */
.loading-status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-muted);
}

.loading-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.loading-status::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-light);
  box-shadow: 0 0 10px var(--accent-light);
  animation: statusPulse 1.6s ease-in-out infinite;
}

@keyframes statusPulse {
  0%, 100% { opacity: 0.3; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.15); }
}

.loading-status.thinking::before {
  background: #f59e0b;
  box-shadow: 0 0 10px #f59e0b;
}

.loading-stop {
  flex-shrink: 0;
  padding: 3px 10px;
  font-size: 11px;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.loading-stop:hover {
  color: var(--danger);
  border-color: var(--danger);
  background: var(--danger-bg);
}

/* ─── Modals & Dialogs ──────────────────────────────────────── */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 7, 14, 0.92);
  z-index: 300;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  overscroll-behavior: contain;
}

.overlay.active {
  display: flex;
}

.modal {
  background: #101323;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.05);
  width: 100%;
  max-width: 540px;
  max-height: 86vh;
  display: flex;
  flex-direction: column;
  animation: modalIn 0.24s cubic-bezier(0.16, 1, 0.3, 1);
  contain: content;
  transform: translateZ(0);
  isolation: isolate;
}

.settings-modal {
  max-width: 560px;
  height: 620px;
  max-height: 88vh;
}

.settings-modal .modal-body {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
  overscroll-behavior: contain;
  transform: translateZ(0);
  will-change: scroll-position;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
}

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

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.modal-header h3 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: #ffffff;
}

.btn-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-close:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
  overscroll-behavior: contain;
  transform: translateZ(0);
  will-change: scroll-position;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
}

/* Settings Tabs */
.settings-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 22px;
  background: rgba(255, 255, 255, 0.04);
  padding: 4px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  flex-shrink: 0;
}

.settings-tab {
  flex: 1;
  background: none;
  border: none;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 8px;
  transition: color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
  text-align: center;
}

.settings-tab:hover {
  color: #ffffff;
}

.settings-tab.active {
  background: rgba(99, 102, 241, 0.22);
  color: var(--accent-light);
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.settings-pane { display: none; }
.settings-pane.active { display: block; animation: paneIn 0.2s ease; }

@keyframes paneIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: none; }
}

.pane-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.pane-head h4 {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

/* Settings Controls & Switches */
.settings-section {
  margin-bottom: 22px;
}

.settings-section:last-child { margin-bottom: 0; }

.settings-section label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  margin-top: 14px;
}

.settings-section label:first-of-type {
  margin-top: 0;
}

.settings-section input[type="text"],
.settings-section input[type="password"],
.settings-section select,
.settings-section textarea {
  width: 100%;
  padding: 10px 14px;
  background: rgba(12, 14, 25, 0.7);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: #ffffff;
  font-size: 13px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.settings-section select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%23a5b4fc' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  cursor: pointer;
}

.settings-section select option {
  background: #121626;
  color: #ffffff;
}

.settings-section input:focus,
.settings-section select:focus,
.settings-section textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.settings-section textarea {
  resize: vertical;
}

.settings-section .hint {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 6px;
  line-height: 1.5;
}

/* Switch Row */
.settings-section label.switch-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
}

.settings-section label.switch-row input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 40px;
  height: 22px;
  margin: 0;
  border: none;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.15);
  position: relative;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--transition-fast);
}

.settings-section label.switch-row input[type="checkbox"]::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  transition: transform var(--transition-fast);
}

.settings-section label.switch-row input[type="checkbox"]:checked {
  background: var(--accent);
}

.settings-section label.switch-row input[type="checkbox"]:checked::after {
  transform: translateX(18px);
}

/* Group Tabs in Settings */
.group-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.group-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 180px;
  padding: 6px 10px 6px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 9999px;
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast), background-color var(--transition-fast);
}

.group-tab:hover {
  border-color: var(--accent);
  color: #ffffff;
}

.group-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.4);
}

.group-tab-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.group-tab-del {
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  padding: 0 2px;
  opacity: 0.6;
  flex-shrink: 0;
}

.group-tab-del:hover { opacity: 1; }

/* Model Edit List */
.model-edit-section {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.model-edit-section h4 { margin-bottom: 10px; font-size: 13px; }

.model-edit-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 10px;
}

.model-edit-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px 6px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
}

.model-edit-name {
  flex: 1;
  color: #ffffff;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 12px;
}

.model-edit-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
  padding: 4px 6px;
  border-radius: 4px;
  flex-shrink: 0;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.model-edit-btn:hover { color: #ffffff; background: rgba(255, 255, 255, 0.1); }
.model-edit-btn.danger:hover { color: var(--danger); background: var(--danger-bg); }

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

.model-add-row input { flex: 1; }

.empty-models {
  color: var(--text-muted);
  font-size: 12px;
  padding: 8px 0;
}

/* Password Field */
.password-field {
  position: relative;
}

.password-field input {
  padding-right: 44px;
}

.btn-eye {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 6px;
}

.btn-eye:hover {
  color: #ffffff;
}

/* Modal Buttons & Footer */
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.settings-modal-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.settings-modal-footer-left,
.settings-modal-footer-right {
  display: flex;
  gap: 8px;
  align-items: center;
}

@media (max-width: 520px) {
  .settings-tab {
    padding: 8px 6px;
    font-size: 12px;
  }
  .settings-modal-footer {
    flex-direction: column-reverse;
    align-items: stretch;
  }
  .settings-modal-footer-left,
  .settings-modal-footer-right {
    justify-content: space-between;
  }
  .settings-modal-footer-left .btn-secondary,
  .settings-modal-footer-right .btn-secondary,
  .settings-modal-footer-right .btn-primary {
    flex: 1;
    text-align: center;
  }
}

.btn-primary {
  padding: 9px 22px;
  background: var(--accent-gradient);
  border: none;
  border-radius: var(--radius-sm);
  color: #ffffff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  opacity: 0.92;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.55);
}

.btn-secondary {
  padding: 9px 22px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.09);
  color: #ffffff;
}

.btn-danger {
  padding: 9px 22px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--danger);
  color: #ffffff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 14px rgba(239, 68, 68, 0.35);
}

.btn-danger:hover {
  background: var(--danger-hover);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 12px;
}

/* Rename Dialog */
.rename-modal {
  width: min(440px, calc(100vw - 32px));
}

.rename-modal-body label {
  display: block;
  margin-bottom: 8px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
}

.rename-modal-body input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 14px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background: rgba(12, 14, 25, 0.7);
  color: #ffffff;
  font: inherit;
  outline: none;
}

.rename-modal-body input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* Confirm Dialog */
.confirm-modal {
  max-width: 380px;
}

.confirm-modal .confirm-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-primary);
}

/* Image Preview Lightbox */
.image-overlay-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
}

.image-overlay-content img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.btn-close-image {
  position: absolute;
  top: -44px;
  right: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-close-image:hover {
  background: var(--danger);
}

/* ─── Toast Notifications ───────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 400;
  display: flex;
  flex-direction: column-reverse;
  gap: 10px;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  animation: toastIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  max-width: 380px;
}

.toast.success {
  background: rgba(16, 185, 129, 0.2);
  color: #6ee7b7;
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.toast.error {
  background: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.4);
}

.toast.info {
  background: rgba(99, 102, 241, 0.2);
  color: #c4b5fd;
  border: 1px solid rgba(99, 102, 241, 0.4);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(24px) scale(0.95); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}

/* ─── Responsive Queries ────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    box-shadow: var(--shadow-lg);
  }

  .sidebar.collapsed {
    margin-left: calc(var(--sidebar-width) * -1);
  }

  .sidebar-toggle {
    display: flex;
  }

  .main-content {
    width: 100%;
  }

  .chat-header {
    padding-left: 60px;
  }

  .messages-container {
    width: 100%;
    padding: 16px 14px;
  }

  .welcome-suggestions {
    grid-template-columns: 1fr;
  }

  .welcome-screen {
    padding: 28px 12px;
  }

  .welcome-store-badge {
    width: 96px;
    height: 96px;
    border-radius: 22px;
  }

  .input-area {
    padding: 8px 12px 14px;
  }

  .message .message-branch-btn,
  .message .message-regen-btn,
  .message .message-copy-btn,
  .message .message-del-btn,
  .message .message-edit-btn {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
}

@media (max-width: 480px) {
  .sidebar {
    --sidebar-width: 260px;
    width: 260px;
    min-width: 260px;
  }

  .chat-header {
    padding: 0 10px 0 54px;
  }

  .conversation-title {
    max-width: 90px;
  }

  .header-right {
    gap: 6px;
  }

  .group-selector-btn {
    max-width: 96px;
    padding: 6px 8px;
  }

  .group-selector-btn span#groupSelectorLabel {
    max-width: 48px;
  }

  .model-selector {
    flex: 0 1 130px;
  }

  .model-input {
    width: 100%;
    padding-left: 26px;
    padding-right: 24px;
  }

  .model-selector-sparkle {
    left: 8px;
    width: 12px;
    height: 12px;
  }

  .messages-container {
    padding: 12px 8px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}