:root {
  --base: #0a0a0a;
  --surface: #111;
  --raised: #1a1a1a;
  --overlay: #1e1e1e;
  --bg: var(--surface);
  --bg-glass: rgba(26, 26, 26, 0.75);
  --bg-glass-heavy: rgba(17, 17, 17, 0.94);
  --bg-hover: rgba(255, 255, 255, 0.04);
  --bg-active: rgba(255, 255, 255, 0.06);
  --border: #2a2a2a;
  --border-focus: rgba(255, 255, 255, 0.1);
  --text: #e8e8ed;
  --text-secondary: #9a9aae;
  --text-muted: #6b6b7b;
  --accent: #e5e5e5;
  --accent-dim: #999;
  --accent-glow: rgba(229, 229, 229, 0.08);
  --danger: #e74c3c;
  --danger-glow: rgba(231, 76, 60, 0.3);
  --user-bubble: rgba(255, 255, 255, 0.06);
  --ai-bubble: rgba(255, 255, 255, 0.03);
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --heading-color: #f0f0f0;
}

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

html, body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  background: var(--base);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

.hidden { display: none !important; }

.glass {
  background: var(--bg-glass);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.glass-heavy {
  background: var(--bg-glass-heavy);
  backdrop-filter: blur(32px) saturate(200%);
  -webkit-backdrop-filter: blur(32px) saturate(200%);
  border: 1px solid var(--border);
}

.glass-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-glass);
  color: var(--text);
  font-size: 14px;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.2s var(--ease);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  touch-action: manipulation;
}

.glass-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-focus);
}

.glass-btn:active {
  transform: scale(0.95);
  transition: transform 0.15s ease-out;
  background: var(--bg-active);
}

.glass-btn.primary {
  background: var(--raised);
  border-color: var(--border);
  color: var(--text);
}

.glass-btn.primary:hover {
  background: #222;
  border-color: var(--accent);
  box-shadow: 0 0 16px var(--accent-glow);
}

.glass-btn.danger {
  color: var(--danger);
}

.glass-btn.danger:hover {
  background: rgba(231, 76, 60, 0.1);
  border-color: var(--danger);
  box-shadow: 0 0 16px var(--danger-glow);
}

.glass-btn.sm {
  padding: 6px 14px;
  font-size: 12px;
  border-radius: 8px;
}

.glass-btn.icon-btn {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
  font-size: 16px;
  flex-shrink: 0;
}

.ico { width: 18px; height: 18px; display: block; }
.ico-sm { width: 14px; height: 14px; display: block; opacity: 0.4; }
.ico-lg { width: 40px; height: 40px; display: block; }
.ico-xl { width: 52px; height: 52px; display: block; color: var(--text-muted); }

.msg-action .ico { width: 14px; height: 14px; }

.chat-item-delete {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px;
  flex-shrink: 0;
  color: var(--text-muted);
}

.chat-item-edit {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px;
  flex-shrink: 0;
  color: var(--text-muted);
}

.chat-item:hover .chat-item-edit,
.chat-item.active .chat-item-edit { display: flex; align-items: center; }

.chat-item-edit:hover .ico-sm { opacity: 1; color: var(--text); }

.chat-item:hover .chat-item-delete,
.chat-item.active .chat-item-delete { display: flex; align-items: center; }

.chat-item-delete:hover .ico-sm { opacity: 1; color: var(--danger); }

.glass-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-size: 14px;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.glass-input:focus {
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

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

.muted { color: var(--text-secondary); font-size: 13px; font-weight: 400; }

.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 14px 0;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 46px;
  height: 26px;
}

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

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

.toggle-slider::before {
  content: '';
  position: absolute;
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background: var(--text-secondary);
  border-radius: 50%;
  transition: all 0.25s var(--ease);
}

.toggle-switch input:checked + .toggle-slider {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
  box-shadow: 0 0 12px var(--accent-glow);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(20px);
  background: #f0f0f0;
}

.select-input {
  width: auto;
  min-width: 100px;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239a9aae' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
}

/* Passcode */
.passcode-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}

.passcode-card {
  width: 320px;
  padding: 36px 28px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
}

.passcode-icon { font-size: 36px; margin-bottom: 4px; }

.passcode-card h2 { font-size: 20px; font-weight: 700; color: var(--heading-color); }

.passcode-card .glass-input {
  text-align: center;
  font-size: 18px;
  letter-spacing: 4px;
  width: 200px;
}

.error-msg { color: var(--danger); font-size: 12px; }

/* App layout */
.app {
  display: flex;
  height: 100%;
  width: 100%;
}

/* Sidebar */
.sidebar {
  width: 300px;
  min-width: 300px;
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-right: 1px solid var(--border);
  border-radius: 0;
  transition: transform 0.3s var(--ease), width 0.25s var(--ease), min-width 0.25s var(--ease), opacity 0.2s var(--ease);
  z-index: 100;
  overflow: hidden;
}

.sidebar.closed {
  width: 0;
  min-width: 0;
  border-right: none;
  opacity: 0;
  pointer-events: none;
}

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

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 16px 10px 16px;
  padding-top: max(14px, env(safe-area-inset-top));
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--heading-color);
}

.sidebar-brand .ico { color: var(--accent); }

.new-chat-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: #1a1a1a;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.15s var(--ease);
  white-space: nowrap;
}

.new-chat-btn:hover {
  background: var(--overlay);
  color: var(--text);
  border-color: #444;
  transform: translateY(-1px);
}

.sidebar-search {
  position: relative;
  padding: 0 16px 10px 16px;
}

.search-icon {
  position: absolute;
  left: 26px;
  top: 50%;
  transform: translateY(-50%);
  color: #666;
  pointer-events: none;
}

.sidebar-search .search-input {
  width: 100%;
  padding: 8px 12px 8px 32px;
  border: 1px solid #444;
  border-radius: 12px;
  background: #1a1a1a;
  color: var(--text);
  font-size: 13px;
  font-family: var(--font);
  outline: none;
}

.sidebar-search .search-input::placeholder { color: #666; }
.sidebar-search .search-input:focus { border-color: #555; }

.chat-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.chat-list::-webkit-scrollbar { width: 6px; }
.chat-list::-webkit-scrollbar-track { background: #333; }
.chat-list::-webkit-scrollbar-thumb { background: #555; border-radius: 3px; }

.chat-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  padding: 0 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 0.1s var(--ease);
  line-height: 1.3;
}

.chat-item:hover { background: #1a1a1a; }

.chat-item.active { background: #1a1a1a; border-left: 2px solid var(--accent); }

.chat-item-title {
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
  font-size: 14px;
  font-weight: 500;
  color: #e5e5e5;
}

.chat-item-date {
  font-size: 12px;
  font-weight: 400;
  color: #666;
  margin-left: 8px;
  flex-shrink: 0;
}

.sidebar-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 10px 16px;
  padding-bottom: max(10px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--border);
}

.sidebar-footer-actions {
  display: flex;
  gap: 2px;
}

/* Main */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  min-width: 0;
  position: relative;
  background: var(--base);
}

.no-chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 40px 20px;
}

.no-chat-logo {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  background: var(--raised);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.no-chat-logo .ico-xl { color: var(--text-secondary); opacity: 0.2; }

.no-chat-welcome {
  font-size: 20px;
  font-weight: 500;
  color: var(--text-muted);
  line-height: 1.3;
  text-align: center;
}

.no-chat-prompts {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  max-width: 500px;
  margin-top: 4px;
}

.prompt-chip {
  padding: 10px 18px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: var(--raised);
  color: var(--text-secondary);
  font-size: 13px;
  font-family: var(--font);
  font-weight: 400;
  cursor: pointer;
  transition: all 0.2s var(--ease);
  white-space: nowrap;
}

.prompt-chip:hover {
  background: var(--overlay);
  color: var(--text);
  border-color: #444;
  transform: translateY(-1px);
}

/* Chat area */
.chat-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  padding-top: max(10px, env(safe-area-inset-top));
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  flex-shrink: 0;
}

.chat-title {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  color: var(--heading-color);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

.model-selector {
  position: relative;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px 10px;
  border-radius: 8px;
  border: 1px solid #333;
  background: #1a1a1a;
  cursor: pointer;
  transition: all 0.15s var(--ease);
  user-select: none;
}

.model-selector:hover {
  border-color: #555;
  background: #222;
}

.model-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.model-selector .ico-sm { color: var(--text-muted); transition: transform 0.2s var(--ease); }

.model-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  background: #1a1a1a;
  border: 1px solid #333;
  border-radius: 10px;
  padding: 4px;
  min-width: 140px;
  z-index: 300;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  animation: dropdownIn 0.12s var(--ease);
}

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

.model-option {
  padding: 7px 12px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.1s var(--ease);
}

.model-option:hover {
  background: #333;
  color: var(--text);
}

.model-option.active {
  color: var(--text);
  background: #2a2a2a;
}

/* Messages */
.messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
}

.messages::-webkit-scrollbar { width: 6px; }
.messages::-webkit-scrollbar-track { background: #333; }
.messages::-webkit-scrollbar-thumb { background: #555; border-radius: 4px; }

.message-row {
  display: flex;
  flex-direction: column;
  max-width: 75%;
  animation: msgIn 0.1s var(--ease);
}

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

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

.message-row.ai { align-self: flex-start; align-items: flex-start; }

.message-row.ai .message-wrapper {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 10px;
  width: 100%;
}

.message-row.ai .message-wrapper + .message-actions {
  padding-left: 38px;
}

.ai-avatar {
  width: 28px;
  height: 28px;
  min-width: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
  color: #888;
}

.ico-avatar { width: 22px; height: 22px; display: block; }

.message-bubble {
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.55;
  word-break: break-word;
  position: relative;
}

.message-row.user .message-bubble {
  background: #222;
  border: 1px solid #2a2a2a;
  color: #f0f0f0;
  border-bottom-right-radius: 12px;
}

.message-row.ai .message-bubble {
  background: none;
  border: none;
  color: var(--text);
  padding: 4px 0;
}

.message-actions {
  display: flex;
  gap: 4px;
  margin-top: 4px;
  opacity: 0;
  transition: opacity 0.15s var(--ease);
}

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

.msg-action {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 12px;
  padding: 4px 6px;
  border-radius: 6px;
  transition: all 0.15s var(--ease);
}

.msg-action:hover { color: var(--text); background: var(--bg-hover); }

.msg-action.copied { color: var(--accent); }

/* Streaming cursor */
.streaming-cursor::after {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-dim);
  margin-left: 3px;
  vertical-align: middle;
  animation: pulse-dot 1.4s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 80%, 100% { opacity: 0; transform: scale(0.6); }
  40% { opacity: 1; transform: scale(1); }
}

/* Code blocks */
.message-bubble code {
  font-family: 'Fira Code', 'JetBrains Mono', 'Cascadia Code', 'Consolas', monospace;
  font-size: 13px;
  background: rgba(255,255,255,0.06);
  padding: 2px 6px;
  border-radius: 4px;
  color: #d4d4d4;
}

.message-bubble pre {
  background: #0d1117;
  border: 1px solid #30363d;
  border-radius: 8px;
  padding: 14px 16px;
  margin: 8px 0;
  overflow-x: auto;
  position: relative;
  font-size: 13px;
  line-height: 1.55;
}

.message-bubble pre::-webkit-scrollbar { height: 6px; }
.message-bubble pre::-webkit-scrollbar-track { background: #0d1117; }
.message-bubble pre::-webkit-scrollbar-thumb { background: #30363d; border-radius: 3px; }

.message-bubble pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  font-size: 13px;
}

.code-block {
  position: relative;
  margin: 8px 0;
}

.code-copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: #21262d;
  border: 1px solid #30363d;
  border-radius: 6px;
  color: #8b949e;
  cursor: pointer;
  padding: 4px 8px;
  font-size: 11px;
  font-family: var(--font);
  transition: all 0.15s var(--ease);
  opacity: 0;
}

.code-block:hover .code-copy-btn { opacity: 1; }
.code-copy-btn:hover { background: #30363d; color: #f0f0f0; }
.code-copy-btn.copied { color: #3fb950; }

/* Composer */
.composer {
  background: #141414;
  border: 1px solid #2a2a2a;
  border-radius: 16px;
  flex-shrink: 0;
  padding: 6px 8px;
  margin: 0 auto 20px auto;
  margin-bottom: max(20px, env(safe-area-inset-bottom));
  width: calc(100% - 28px);
  max-width: 720px;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.composer:focus-within {
  border-color: #444;
  box-shadow: 0 0 0 2px rgba(255,255,255,0.05);
}

.composer-inner {
  display: flex;
  align-items: flex-end;
  gap: 6px;
}

.msg-input {
  flex: 1;
  resize: none;
  max-height: 120px;
  min-height: 38px;
  padding: 8px 0;
  border-radius: 0;
  font-size: 14px;
  line-height: 1.4;
  background: transparent;
  border: none;
  outline: none;
}

.msg-input::placeholder { color: #666; }
.msg-input:focus { border-color: transparent; box-shadow: none; }

.msg-input.voice-mode {
  color: var(--text-muted);
  cursor: pointer;
  background: rgba(255,255,255,0.015);
  border-color: transparent;
  opacity: 0.6;
}

.composer-actions { display: flex; gap: 2px; align-items: center; }

.composer .glass-btn.icon-btn {
  color: #666;
  transition: color 0.15s var(--ease), background 0.15s var(--ease);
}

.composer .glass-btn.icon-btn:hover {
  color: #e5e5e5;
  background: rgba(255,255,255,0.05);
}

.composer:focus-within .glass-btn.primary {
  color: var(--text);
  background: rgba(255,255,255,0.08);
}

/* Image preview */
.image-preview {
  padding: 0 0 6px 0;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.image-preview-item {
  position: relative;
  width: 60px;
  height: 60px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #2a2a2a;
}

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

.image-preview-remove {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: rgba(0,0,0,0.7);
  border: none;
  color: #fff;
  cursor: pointer;
  font-size: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

/* Image in message */
.msg-image {
  max-width: 240px;
  max-height: 240px;
  border-radius: 10px;
  margin-bottom: 8px;
  object-fit: cover;
  border: 1px solid #2a2a2a;
  cursor: pointer;
}

.msg-image:hover { opacity: 0.9; }

.stop {
  color: var(--danger) !important;
  animation: pulse 1.2s infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--danger-glow); }
  50% { box-shadow: 0 0 0 8px transparent; }
}

.mic-status {
  text-align: center;
  padding: 6px;
  font-size: 12px;
  color: var(--danger);
  animation: pulse 1.2s infinite;
}

.tap-to-continue {
  animation: tapPulse 2s infinite;
}

@keyframes tapPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(229, 229, 229, 0.3); }
  50% { box-shadow: 0 0 0 8px rgba(229, 229, 229, 0); }
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
}

.modal {
  width: 90%;
  max-width: 400px;
  max-height: 80vh;
  overflow-y: auto;
  padding: 20px;
  border-radius: var(--radius-lg);
  animation: modalIn 0.2s var(--ease);
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

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

.modal-header h2 { font-size: 18px; font-weight: 700; color: var(--heading-color); }

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  font-size: 14px;
}

.setting-row span { flex: 1; }

.setting-api-key {
  flex-direction: column;
  align-items: stretch;
  gap: 6px;
}

.setting-api-key span { flex: none; }

.setting-api-key .glass-input {
  font-size: 12px;
  padding: 7px 10px;
  letter-spacing: 1px;
}

.danger-row span { color: var(--danger); }

.confirm-modal {
  text-align: center;
  padding: 24px;
  width: 300px;
}

.confirm-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 16px;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 600;
  padding: 10px 20px;
  border-radius: var(--radius);
  background: var(--bg-glass-heavy);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  font-size: 13px;
  animation: toastIn 0.3s var(--ease);
  pointer-events: none;
  white-space: nowrap;
}

.toast.hiding { animation: toastOut 0.3s var(--ease) forwards; }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(16px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateX(-50%) translateY(0); }
  to { opacity: 0; transform: translateX(-50%) translateY(16px); }
}

/* Scrollbar global */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #333; }
::-webkit-scrollbar-thumb { background: #555; border-radius: 4px; }

/* Mobile */
@media (max-width: 640px) {
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 200;
    transform: translateX(-100%);
    width: 280px;
    min-width: 280px;
  }

  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 199;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
  }

  .message-row { max-width: 85%; }
  .modal { width: 94%; }
}