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

:root {
  --bg: #0d1117;
  --surface: #161b22;
  --surface2: #21262d;
  --border: #30363d;
  --text: #e6edf3;
  --text-dim: #8b949e;
  --accent: #f97316;
  --accent-glow: rgba(249, 115, 22, 0.15);
  --user-bubble: #1f6feb;
  --bot-bubble: #21262d;
  --error: #f85149;
}

*, *::before, *::after { box-sizing: border-box; }
html { overflow: hidden; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  width: 100vw;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  margin: 0;
  padding: 0;
}

/* Auth Screen */
.auth-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  gap: 24px;
}

.auth-screen .big-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--accent-glow);
  border: 3px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  animation: pulse 3s ease-in-out infinite;
}

.auth-screen h2 { font-size: 22px; }
.auth-screen p { font-size: 14px; color: var(--text-dim); text-align: center; line-height: 1.5; }

.auth-btn {
  background: var(--accent);
  border: none;
  border-radius: 12px;
  padding: 14px 28px;
  color: white;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s;
  display: flex;
  align-items: center;
  gap: 10px;
}
.auth-btn:hover { transform: scale(1.03); box-shadow: 0 0 20px rgba(249, 115, 22, 0.3); }
.auth-btn:active { transform: scale(0.97); }
.auth-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.auth-btn .icon { font-size: 20px; }

.auth-error {
  color: var(--error);
  font-size: 13px;
  min-height: 20px;
  text-align: center;
}

.auth-loading {
  color: var(--text-dim);
  font-size: 14px;
}

/* Chat UI — split layout */
.chat-ui { display: none; flex-direction: row; height: 100vh; overflow: hidden; }
.chat-ui.active { display: flex; }

/* Avatar Panel (left) */
.avatar-panel {
  width: 40%;
  flex-shrink: 0;
  position: relative;
  background: #0f1318;
  overflow: visible;
  z-index: 10;
  border-right: none;
  cursor: pointer;
}

.avatar-panel::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(0,0,0,0.6) 100%);
  z-index: 1;
}

#avatarCanvas {
  width: 100%;
  height: 100%;
  position: relative;
  z-index: 0;
}

#avatarCanvas canvas {
  display: block;
  touch-action: none; /* Prevent browser gestures interfering with drag-rotate */
  pointer-events: auto; /* Ensure canvas captures mouse/touch events */
}

.avatar-flash {
  position: absolute;
  inset: 0;
  background: rgba(248, 81, 73, 0.25);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.1s ease;
  z-index: 2;
}

.avatar-flash.active {
  opacity: 1;
}

/* Drag Separator */
.drag-separator {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  z-index: 5;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
  width: 16px;
  cursor: col-resize;
  position: relative;
}

/* Larger invisible hit area for easier dragging */
.drag-separator::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: -8px;
  right: -8px;
  cursor: col-resize;
}

.drag-handle {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}

.drag-handle span {
  display: block;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-dim);
  opacity: 0.6;
}

.drag-separator:hover .drag-handle span,
.drag-separator:active .drag-handle span {
  opacity: 1;
  background: var(--accent);
}

/* Chat Main (right) */
.chat-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  max-width: 100%;
  position: relative;
}

.header { display: none; }

.messages {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-anchor: auto;
}

.message {
  display: flex;
  gap: 10px;
  max-width: min(80%, calc(100% - 40px));
  min-width: 0;
  animation: fadeIn 0.3s ease;
  box-sizing: border-box;
}

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

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow); }
  50% { box-shadow: 0 0 20px 4px var(--accent-glow); }
}

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

.message .msg-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
  background: var(--accent-glow);
  border: 1px solid var(--accent);
}

.message.user .msg-avatar,
.message.bot .msg-avatar {
  display: none;
}

.bubble {
  padding: 10px 14px;
  border-radius: 16px;
  line-height: 1.5;
  font-size: 15px;
  word-wrap: break-word;
  overflow-wrap: break-word;
  word-break: break-word;
  white-space: pre-wrap;
  position: relative;
  padding-bottom: 28px;
  min-width: 80px;
  flex: 1;
  overflow: hidden;
  box-sizing: border-box;
}

.bubble .msg-time {
  position: absolute;
  bottom: 4px;
  right: 10px;
  font-size: 11px;
  color: rgba(255,255,255,0.4);
  line-height: 1;
  pointer-events: none;
  white-space: nowrap;
}

.message.user .bubble .msg-time {
  color: rgba(255,255,255,0.5);
}

.message.bot {
  max-width: 100%;
}

.message.bot .bubble {
  background: var(--bot-bubble);
  border: 1px solid var(--border);
  border-top-left-radius: 4px;
}

.message.user .bubble {
  background: var(--user-bubble);
  border-top-right-radius: 4px;
}

.bubble code {
  background: rgba(255,255,255,0.1);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  word-break: break-all;
}

.bubble pre {
  background: rgba(0,0,0,0.3);
  padding: 10px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 8px 0;
  font-size: 13px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  white-space: pre-wrap;
  word-break: break-word;
}

.bubble ul, .bubble ol {
  margin: 8px 0;
  padding-left: 1.5em;
}

.bubble li {
  margin: 4px 0;
}

.typing {
  display: flex;
  gap: 4px;
  padding: 10px 14px;
  align-items: center;
}

.typing span {
  width: 8px;
  height: 8px;
  background: var(--text-dim);
  border-radius: 50%;
  animation: typingBounce 1.4s infinite;
}
.typing span:nth-child(2) { animation-delay: 0.2s; }
.typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); }
  30% { transform: translateY(-6px); }
}

/* Message context menu */
.msg-context-menu {
  position: fixed;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
  min-width: 140px;
  animation: menuFadeIn 0.15s ease;
}
@keyframes menuFadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}
.msg-context-menu button {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 10px 16px;
  background: none;
  border: none;
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  text-align: left;
}
.msg-context-menu button:hover {
  background: rgba(255,255,255,0.08);
}

/* Reply preview bar */
.reply-bar {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: var(--surface2);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  margin-bottom: 8px;
  position: relative;
}
.reply-bar.active { display: flex; }
.reply-bar-content {
  flex: 1;
  min-width: 0;
}
.reply-bar-sender {
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
}
.reply-bar-text {
  font-size: 13px;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
.reply-bar-close {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 18px;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  flex-shrink: 0;
}
.reply-bar-close:hover {
  background: rgba(255,255,255,0.1);
  color: var(--text);
}

/* Quote block in messages */
.bubble .reply-quote {
  border-left: 3px solid var(--accent);
  padding: 4px 10px;
  margin-bottom: 8px;
  background: rgba(255,255,255,0.05);
  border-radius: 0 6px 6px 0;
  cursor: pointer;
}
.bubble .reply-quote-sender {
  font-size: 11px;
  color: var(--accent);
  font-weight: 600;
}
.bubble .reply-quote-text {
  font-size: 13px;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.input-area {
  padding: 16px 20px;
  padding-bottom: 12px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.input-row { display: flex; gap: 10px; align-items: flex-end; position: relative; margin-bottom: 4px; }

.input-row textarea {
  flex: 1;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  resize: none;
  outline: none;
  max-height: 120px;
  min-height: 44px;
  line-height: 1.4;
  transition: border-color 0.2s;
}

.input-row textarea:focus { border-color: var(--accent); }
.input-row textarea::placeholder { color: var(--text-dim); }

.avatar-buttons {
  position: absolute;
  top: 12px;
  left: 12px;
  right: 12px;
  display: flex;
  justify-content: space-between;
  pointer-events: none;
  z-index: 5;
}
.avatar-action-btn {
  pointer-events: auto;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.25);
  font-size: 22px;
  cursor: pointer;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, transform 0.15s;
  color: #fff;
}
.avatar-action-btn svg {
  stroke: #fff;
}
.avatar-action-btn:hover { background: rgba(255,255,255,0.2); }
.avatar-action-btn:active { transform: scale(0.9); }
.avatar-action-btn.active {
  background: rgba(76, 175, 80, 0.4);
  border-color: rgba(76, 175, 80, 0.6);
}
.avatar-action-btn { position: relative; }

/* Menu dropdown */
.avatar-menu {
  display: none;
  position: absolute;
  top: 64px;
  left: 12px;
  background: rgba(22, 27, 34, 0.95);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 6px;
  z-index: 1000;
  min-width: 180px;
}
.avatar-menu.open { display: block; }
.avatar-menu-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 10px 14px;
  background: none;
  border: none;
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  border-radius: 8px;
  transition: background 0.15s;
}
.avatar-menu-item:hover { background: rgba(255,255,255,0.1); }
.avatar-menu-item:active { background: rgba(255,255,255,0.15); }

/* Modal styles */
.passphrase-modal {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 100;
  align-items: center;
  justify-content: center;
}
.passphrase-modal.open { display: flex; }
.passphrase-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  max-width: 340px;
  width: 90%;
  text-align: center;
}
.passphrase-card h3 { margin-bottom: 8px; font-size: 18px; }
.passphrase-card .desc { color: var(--text-dim); font-size: 13px; margin-bottom: 18px; }
.passphrase-card button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.passphrase-card button:hover { filter: brightness(1.1); }
.task-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: #e53935;
  color: white;
  font-size: 11px;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  line-height: 18px;
  text-align: center;
  box-sizing: border-box;
}
.task-badge.visible { display: flex; }

/* Task panel overlay */
.task-panel {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.85);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  padding: 16px;
}
.task-panel.active { display: flex; }
.task-panel-inner {
  background: #1a1d23;
  border-radius: 16px;
  width: 100%;
  max-width: 600px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,0.8);
}
.task-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.task-panel-header h3 { margin: 0; font-size: 18px; }
.task-panel-close {
  background: none;
  border: none;
  color: var(--text);
  font-size: 24px;
  cursor: pointer;
  opacity: 0.6;
  padding: 4px 8px;
}
.task-panel-close:hover { opacity: 1; }
.task-panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 12px 16px;
}
.task-section-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dim);
  margin: 16px 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.task-section-title:first-child { margin-top: 4px; }
.task-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: #0d1117;
  border-radius: 10px;
  margin-bottom: 6px;
}
.task-item .task-text {
  flex: 1;
  font-size: 14px;
  line-height: 1.4;
  word-break: break-word;
}
.task-item .task-text.done {
  text-decoration: line-through;
  opacity: 0.5;
}
.task-remove-btn {
  background: none;
  border: none;
  color: #e53935;
  font-size: 18px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  opacity: 0.5;
  flex-shrink: 0;
  transition: opacity 0.2s;
}
.task-remove-btn:hover { opacity: 1; }
.task-add-row {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  padding: 0 2px;
}
.task-add-row input {
  flex: 1;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 14px;
}
.task-add-row input::placeholder { color: var(--text-dim); }
.task-add-btn {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
}
.task-panel-footer {
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}
.task-panel-footer button {
  padding: 8px 20px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 14px;
}
.task-save-btn { background: var(--accent); color: white; }
.task-save-btn:hover { opacity: 0.9; }
.task-cancel-btn { background: var(--bg); color: var(--text); }

.voice-toggle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.08);
  font-size: 20px;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.2s;
  -webkit-tap-highlight-color: transparent;
}
.voice-toggle:active { transform: scale(0.9); }
.voice-toggle.active {
  background: rgba(76, 175, 80, 0.35);
  border-color: #4caf50;
  box-shadow: 0 0 12px rgba(76, 175, 80, 0.4);
}

.send-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.08);
  color: var(--accent);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s, opacity 0.2s;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
}
.send-btn:hover:not(:disabled) { transform: scale(1.05); }
.send-btn:active:not(:disabled) { transform: scale(0.95); }
.send-btn:disabled { opacity: 0.35; cursor: not-allowed; transform: none; }

.attach-wrap {
  position: relative;
  flex-shrink: 0;
}
.ptt-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.08);
  font-size: 20px;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.2s;
  -webkit-tap-highlight-color: transparent;
  display: none;
  user-select: none;
  -webkit-user-select: none;
}
.ptt-btn.visible { display: flex; align-items: center; justify-content: center; color: var(--text-dim); }
.ptt-btn.recording {
  background: rgba(244, 67, 54, 0.4);
  border-color: #f44336;
  box-shadow: 0 0 16px rgba(244, 67, 54, 0.5);
  animation: ptt-pulse 1s ease-in-out infinite;
}
@keyframes ptt-pulse {
  0%, 100% { box-shadow: 0 0 8px rgba(244, 67, 54, 0.3); }
  50% { box-shadow: 0 0 20px rgba(244, 67, 54, 0.6); }
}
.attach-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: 2px solid rgba(255,255,255,0.15);
  color: var(--text-dim);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s, border-color 0.2s, color 0.2s;
  -webkit-tap-highlight-color: transparent;
}
.attach-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: scale(1.05);
}
.attach-btn:active { transform: scale(0.95); }

.attach-menu {
  display: none;
  position: absolute;
  bottom: 52px;
  left: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 6px 0;
  min-width: 170px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  z-index: 20;
  animation: fadeIn 0.15s ease;
}
.attach-menu.active { display: block; }
.attach-menu-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 10px 16px;
  background: none;
  border: none;
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s;
}
.attach-menu-item:hover {
  background: var(--surface2);
}

.image-preview-bar {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  margin-bottom: 8px;
  background: rgba(33, 38, 45, 0.95);
  border: 1px solid var(--border);
  border-radius: 12px;
  animation: fadeIn 0.2s ease;
}
.image-preview-bar.active { display: flex; }
.image-preview-bar img {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--border);
}
.image-preview-bar .preview-info {
  flex: 1;
  font-size: 13px;
  color: var(--text-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.image-preview-bar .preview-cancel {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s, border-color 0.2s;
  flex-shrink: 0;
}
.image-preview-bar .preview-cancel:hover {
  color: var(--error);
  border-color: var(--error);
}

.camera-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 1000;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
}
.camera-modal.active { display: flex; }
.camera-modal video {
  max-width: 90vw;
  max-height: 60vh;
  border-radius: 12px;
  border: 2px solid var(--border);
  background: #000;
}
.camera-modal .cam-preview-img {
  max-width: 90vw;
  max-height: 60vh;
  border-radius: 12px;
  border: 2px solid var(--border);
  display: none;
}
.camera-modal .cam-controls {
  display: flex;
  gap: 16px;
  align-items: center;
}
.camera-modal .cam-ctrl-btn {
  padding: 12px 24px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text);
  font-size: 15px;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.camera-modal .cam-ctrl-btn:hover {
  border-color: var(--accent);
}
.camera-modal .cam-ctrl-btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
  font-weight: 600;
}
.camera-modal .cam-ctrl-btn.primary:hover {
  background: #ea6c0a;
}

.bubble a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: rgba(249, 115, 22, 0.4);
}
.bubble a:hover {
  text-decoration-color: var(--accent);
}

.file-viewer-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,0.9);
  flex-direction: column;
}
.file-viewer-overlay.active { display: flex; }
.file-viewer-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  padding-top: max(12px, env(safe-area-inset-top));
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.file-viewer-bar .fv-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--fg);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  margin-right: 12px;
}
.file-viewer-bar .fv-btn {
  background: var(--accent);
  border: none;
  color: #fff;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
  flex-shrink: 0;
}
.file-viewer-bar .fv-close {
  background: rgba(255,255,255,0.1);
  margin-left: 8px;
}
.file-viewer-content {
  flex: 1;
  overflow: hidden;
}
.file-viewer-content iframe {
  width: 100%;
  height: 100%;
  border: none;
  background: #fff;
}

.bubble img.chat-image,
.bubble img.msg-image {
  max-width: 100%;
  max-height: 300px;
  border-radius: 10px;
  display: block;
  margin-top: 4px;
  cursor: pointer;
  transition: opacity 0.2s;
  object-fit: contain;
}
.bubble img.chat-image:hover,
.bubble img.msg-image:hover { opacity: 0.9; }

.drag-overlay {
  display: none;
  position: absolute;
  inset: 0;
  background: rgba(249, 115, 22, 0.08);
  border: 2px dashed var(--accent);
  border-radius: 12px;
  z-index: 50;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.drag-overlay.active {
  display: flex;
}
.drag-overlay span {
  background: var(--surface);
  padding: 12px 24px;
  border-radius: 12px;
  color: var(--accent);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid var(--accent);
}

.welcome {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-dim);
}

.welcome .big-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--accent-glow);
  border: 3px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  margin: 0 auto 16px;
  animation: pulse 3s ease-in-out infinite;
}

.welcome h2 { color: var(--text); font-size: 22px; margin-bottom: 8px; }
.welcome p { font-size: 14px; line-height: 1.6; }

.messages::-webkit-scrollbar { width: 6px; }
.messages::-webkit-scrollbar-track { background: transparent; }
.messages::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ═══════════════════════════════════════ */
/* ─── Live Talk / Voice Call Overlay ─── */
/* ═══════════════════════════════════════ */

/* Call overlay - bar pinned at bottom of avatar panel
   Desktop: bottom of left avatar panel
   Mobile: bottom of avatar area (above drag separator) */
#callOverlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(13, 17, 23, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 55;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 12px 18px;
  border-top: 1px solid rgba(249, 115, 22, 0.3);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  height: auto;
  box-sizing: border-box;
  white-space: nowrap;
  font-size: 18px;
}
#callOverlay.active {
  opacity: 1;
  pointer-events: auto;
}

/* Hide pulsing rings in compact mode */
.call-ring-container { display: none; }
.call-mic-icon { display: none; }

/* Status text */
.call-status {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  transition: color 0.3s;
}
.call-status.listening { color: #4caf50; }
.call-status.thinking { color: var(--accent); }
.call-status.speaking { color: #42a5f5; }

/* Interim transcript - hidden in bar, shown in messages area as pending bubble */
.call-interim {
  display: none;
}

/* Waveform visualization */
.call-waveform {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 16px;
}
.call-waveform span {
  display: block;
  width: 3px;
  height: 6px;
  background: var(--text-dim);
  border-radius: 1px;
  transition: background 0.3s;
}
.call-waveform.listening span {
  background: #4caf50;
  animation: waveformBounce 1.2s ease-in-out infinite;
}
.call-waveform.listening span:nth-child(1) { animation-delay: 0.0s; }
.call-waveform.listening span:nth-child(2) { animation-delay: 0.1s; }
.call-waveform.listening span:nth-child(3) { animation-delay: 0.2s; }
.call-waveform.listening span:nth-child(4) { animation-delay: 0.3s; }
.call-waveform.listening span:nth-child(5) { animation-delay: 0.4s; }
.call-waveform.listening span:nth-child(6) { animation-delay: 0.3s; }
.call-waveform.listening span:nth-child(7) { animation-delay: 0.2s; }
.call-waveform.listening span:nth-child(8) { animation-delay: 0.1s; }
.call-waveform.listening span:nth-child(9) { animation-delay: 0.0s; }

.call-waveform.speaking span {
  background: #42a5f5;
  animation: waveformBounce 0.6s ease-in-out infinite;
}
.call-waveform.speaking span:nth-child(1) { animation-delay: 0.00s; }
.call-waveform.speaking span:nth-child(2) { animation-delay: 0.05s; }
.call-waveform.speaking span:nth-child(3) { animation-delay: 0.10s; }
.call-waveform.speaking span:nth-child(4) { animation-delay: 0.15s; }
.call-waveform.speaking span:nth-child(5) { animation-delay: 0.20s; }
.call-waveform.speaking span:nth-child(6) { animation-delay: 0.15s; }
.call-waveform.speaking span:nth-child(7) { animation-delay: 0.10s; }
.call-waveform.speaking span:nth-child(8) { animation-delay: 0.05s; }
.call-waveform.speaking span:nth-child(9) { animation-delay: 0.00s; }

@keyframes waveformBounce {
  0%, 100% { height: 8px; }
  50% { height: 28px; }
}

/* End call button */
.call-end-btn {
  width: 33px;
  height: 33px;
  border-radius: 50%;
  border: none;
  background: #e53935;
  color: white;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  margin: 0;
  transition: transform 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
}
.call-end-btn:active { transform: scale(0.9); }

/* Whisper mode toggle button */
.call-whisper-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.3);
  background: transparent;
  color: white;
  font-size: 18px;
  cursor: pointer;
  margin: 0;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
}
.call-whisper-btn:active { transform: scale(0.9); }
.call-whisper-btn.active {
  background: var(--accent);
  border-color: var(--accent);
}

@media (max-width: 768px) {
  .call-ring-container {
    width: 90px;
    height: 90px;
  }
  .call-ring-1 { width: 60px; height: 60px; }
  .call-ring-2 { width: 75px; height: 75px; }
  .call-ring-3 { width: 90px; height: 90px; }
  .call-mic-icon { font-size: 28px; }
  .call-status { font-size: 14px; }
  .call-interim { font-size: 12px; }
  .call-end-btn {
    width: 48px;
    height: 48px;
    font-size: 18px;
  }

  /* Mobile: voice control bar above separator (bottom of avatar panel) */
  #callOverlay {
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 60;
    border-top: 1px solid rgba(249, 115, 22, 0.3);
    border-bottom: none;
  }
}

/* No-avatar layout: full width chat */
.chat-ui.no-avatar .avatar-panel,
.chat-ui.no-avatar .drag-separator {
  display: none !important;
}
.chat-ui.no-avatar .chat-main {
  width: 100%;
}

/* ── Mobile ── */
@media (max-width: 768px) {
  .chat-ui.active { flex-direction: column; }

  .avatar-panel {
    width: 100% !important;
    height: 160px;
    flex-shrink: 0;
    border-right: none;
    border-bottom: none;
    position: relative;
  }

  .drag-separator {
    width: 100%;
    height: 16px;
    cursor: row-resize;
    flex-direction: row;
  }
  .drag-separator::before {
    top: -8px;
    bottom: -8px;
    left: 0;
    right: 0;
  }
  .drag-handle {
    flex-direction: row;
  }

  .chat-main {
    flex: 1;
    min-height: 0;
  }

  .welcome {
    padding: 16px;
  }
  .welcome .big-avatar {
    display: none;
  }
  .welcome h2 {
    display: none;
  }
  .welcome p {
    font-size: 13px;
    line-height: 1.4;
  }

  .messages {
    padding: 12px;
    gap: 12px;
  }
  .message { max-width: 90%; }
  .message.bot { max-width: 100%; }
  .bubble {
    padding: 8px 12px;
    padding-bottom: 14px;
    font-size: 14px;
  }

  .input-area {
    padding: 10px max(16px, env(safe-area-inset-right)) 10px max(16px, env(safe-area-inset-left));
    padding-bottom: max(8px, env(safe-area-inset-bottom));
  }
  .input-row {
    gap: 6px;
  }
  .input-row textarea {
    padding: 8px 12px;
    font-size: 16px;
    min-height: 36px;
    border-radius: 10px;
  }
  .send-btn, .attach-btn, .ptt-btn {
    width: 38px;
    height: 38px;
  }
  .send-btn svg, .attach-btn svg, .ptt-btn svg {
    width: 18px;
    height: 18px;
  }

  .image-preview-bar img {
    width: 44px;
    height: 44px;
  }
}

/* Avatar Manager Cards */
.avatar-card {
  background: var(--surface2);
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 16px 12px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
}
.avatar-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.avatar-card.selected {
  border-color: var(--accent);
  background: rgba(249, 115, 22, 0.1);
}
.avatar-card-emoji {
  font-size: 2.5rem;
  margin-bottom: 8px;
}
.avatar-card-name {
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 4px;
}
.avatar-card-desc {
  font-size: 0.75rem;
  color: var(--fg-muted);
}


.avatar-card.previewing {
  border-color: #3b82f6;
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.4);
}
.avatar-card-badge {
  font-size: 0.65rem;
  background: var(--accent);
  color: white;
  padding: 2px 8px;
  border-radius: 10px;
  margin-top: 6px;
  display: inline-block;
}
.avatar-card-delete {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 20px;
  height: 20px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(239, 68, 68, 0.8);
  color: white;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s;
}
.avatar-card:hover .avatar-card-delete {
  opacity: 1;
}
.avatar-card-delete:hover {
  background: #ef4444;
}


/* Avatar Manager - dont block side section */
/* Avatar Manager - only cover chat side, not avatar */
#avatarManagerModal {
  left: auto;
  right: 0;
  width: 60%;
  background: rgba(0,0,0,0.5);
  backdrop-filter: none;
  justify-content: center;
}
#avatarManagerModal .passphrase-card {
  margin: 20px;
  max-height: 80vh;
  overflow-y: auto;
}
@media (max-width: 768px) {
  #avatarManagerModal {
    width: 100%;
    left: 0;
  }
}
/* Delete button for custom avatars */
.avatar-card {
  position: relative;
}
.avatar-delete-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #ef4444;
  color: white;
  border: none;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.2s;
}
.avatar-delete-btn:hover {
  opacity: 1;
}


/* Chat Header with Task Button */
.chat-header {
  position: absolute;
  top: 8px;
  right: 8px;
  height: 48px;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  z-index: 10;
  pointer-events: none;
}
.chat-header-btn {
  pointer-events: auto;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: background 0.2s, transform 0.1s;
}
.chat-header-btn:hover {
  background: var(--surface);
  transform: scale(1.05);
}
.chat-header-btn:active {
  transform: scale(0.95);
}
.chat-header-btn .task-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  background: var(--accent);
  color: white;
  font-size: 10px;
  min-width: 16px;
  height: 16px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}
.chat-header-btn .task-badge:empty {
  display: none;
}

/* Transcribing indicator animation */
.transcribing-indicator {
  display: inline-block;
  animation: pulse-transcribe 1.5s ease-in-out infinite;
}
@keyframes pulse-transcribe {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* ═══════════════════════════════════════ */
/* ─── Widget System ─────────────────── */
/* ═══════════════════════════════════════ */

.widget {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  margin: 8px 20px;
  animation: fadeIn 0.3s ease;
  overflow: visible;
  width: calc(100% - 40px);
  box-sizing: border-box;
}

.widget.disabled {
  opacity: 0.6;
  pointer-events: none;
}

.widget-inline {
  margin: 0;
  padding: 12px;
  border-radius: 12px;
}

.widget-prompt {
  font-size: 15px;
  color: var(--text);
  margin-bottom: 12px;
}

.widget-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.widget-message {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 16px;
  line-height: 1.5;
}

/* Widget Button Group */
.widget-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.widget-btn-group.vertical {
  flex-direction: column;
}

.widget-btn {
  padding: 10px 18px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.widget-btn:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--accent);
}

.widget-btn:active {
  transform: scale(0.97);
}

.widget-btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.widget-btn.primary:hover {
  background: #ea6c0a;
}

.widget-btn.secondary {
  background: transparent;
  border-color: var(--border);
  color: var(--text-dim);
}

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

.widget-btn.danger {
  background: #dc2626;
  border-color: #dc2626;
  color: white;
}

.widget-btn.danger:hover {
  background: #b91c1c;
}

.widget-btn.selected {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.widget-btn.small {
  padding: 6px 12px;
  font-size: 13px;
  border-radius: 8px;
}

.widget-submit {
  margin-top: 12px;
}

/* Code Widget */
.widget-code {
  padding: 0;
  overflow: visible;
}

.widget-code-block {
  max-height: 300px;
  overflow-y: auto;
}

.widget-code-header {
  padding: 8px 14px;
  background: rgba(0,0,0,0.3);
  font-size: 12px;
  color: var(--text-dim);
  font-family: 'SF Mono', 'Fira Code', monospace;
  border-bottom: 1px solid var(--border);
}

.widget-code-block {
  margin: 0;
  padding: 14px;
  background: rgba(0,0,0,0.2);
  font-size: 13px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  color: var(--text);
  overflow-x: auto;
  white-space: pre;
  line-height: 1.5;
}

.widget-code-actions {
  display: flex;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(0,0,0,0.15);
  border-top: 1px solid var(--border);
}

/* Progress Widget */
.widget-progress {
  padding: 14px 16px;
}

.widget-progress-label {
  font-size: 14px;
  color: var(--text);
  margin-bottom: 10px;
}

.widget-progress-bar {
  height: 8px;
  background: var(--surface2);
  border-radius: 4px;
  overflow: hidden;
}

.widget-progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 4px;
  transition: width 0.3s ease;
}

.widget-progress-fill.indeterminate {
  width: 30% !important;
  animation: progressIndeterminate 1.5s ease-in-out infinite;
}

@keyframes progressIndeterminate {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(400%); }
}

.widget-progress-footer {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
  font-size: 13px;
}

.widget-progress-status {
  color: var(--text-dim);
  flex: 1;
}

.widget-progress-percent {
  color: var(--accent);
  font-weight: 600;
}

/* Confirm Widget */
.widget-confirm .widget-btn-group {
  justify-content: flex-end;
}

/* Form Widget */
.widget-form-fields {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 16px;
}

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

.widget-form-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}

.widget-form-required {
  color: var(--error);
}

.widget-form-input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  color: var(--text);
  font-family: inherit;
  transition: border-color 0.2s;
}

.widget-form-input:focus {
  outline: none;
  border-color: var(--accent);
}

.widget-form-input::placeholder {
  color: var(--text-dim);
}

.widget-form-input.widget-form-error {
  border-color: var(--error);
}

.widget-form-textarea {
  resize: vertical;
  min-height: 60px;
}

.widget-form-select {
  cursor: pointer;
}

.widget-form-checkbox-wrap,
.widget-form-radio-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.widget-form-checkbox,
.widget-form-radio-wrap input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}

.widget-form-radio-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.widget-form-buttons {
  justify-content: flex-end;
  margin-top: 8px;
}

/* Datepicker Widget */
.widget-datepicker-wrap {
  margin-bottom: 12px;
}

.widget-datepicker-input {
  width: 100%;
  max-width: 250px;
}

/* Carousel Widget */
.widget-carousel {
  position: relative;
}

.widget-carousel-viewport {
  overflow: hidden;
  border-radius: 12px;
}

.widget-carousel-track {
  display: flex;
  transition: transform 0.3s ease;
}

.widget-carousel-slide {
  flex: 0 0 100%;
  min-width: 100%;
  display: flex;
  flex-direction: column;
}

.widget-carousel-slide img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}

.widget-carousel-info {
  padding: 12px;
  background: rgba(0,0,0,0.3);
}

.widget-carousel-title {
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 4px;
}

.widget-carousel-desc {
  font-size: 13px;
  color: var(--text-dim);
}

.widget-carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: rgba(0,0,0,0.5);
  color: white;
  font-size: 24px;
  cursor: pointer;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}

.widget-carousel-arrow:hover {
  background: rgba(0,0,0,0.7);
}

.widget-carousel-arrow.prev { left: 8px; }
.widget-carousel-arrow.next { right: 8px; }

.widget-carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
}

.widget-carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background: var(--border);
  cursor: pointer;
  padding: 0;
}

.widget-carousel-dot.active {
  background: var(--accent);
}

/* Map Widget */
.widget-map {
  height: 250px;
  border-radius: 12px;
  margin-bottom: 12px;
  z-index: 1;
}

.widget-map-buttons {
  margin-top: 12px;
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .widget {
    margin: 8px 12px;
    padding: 14px;
  }
  
  .widget-btn {
    padding: 12px 16px;
    font-size: 15px;
  }
  
  .widget-btn-group {
    flex-direction: column;
  }
  
  .widget-confirm .widget-btn-group,
  .widget-form-buttons,
  .widget-map-buttons {
    flex-direction: row;
  }
  
  .widget-form-input {
    font-size: 16px; /* Prevent iOS zoom */
  }
  
  .widget-carousel-slide img {
    max-height: 200px;
  }
  
  .widget-map {
    height: 200px;
  }
}