.ai-chat-widget {
    position: static; /* Remove fixed positioning to let panel position itself */
    z-index: 9999;
    font-family: 'Inter', system-ui, sans-serif;
  }
  .ai-chat-toggle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--green);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, background 0.2s;
  }
  .ai-chat-toggle:hover {
    transform: scale(1.05);
    background: var(--green-dark);
  }
  .ai-chat-toggle svg {
    width: 28px;
    height: 28px;
    fill: white;
  }
  /* AI chat panel styles moved to main CSS section (line 929) */
  .ai-chat-header {
    background: var(--green);
    color: white;
    padding: 14px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .ai-chat-header-icon {
    width: 32px;
    height: 32px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
  }
  .ai-chat-header-text {
    flex: 1;
  }
  .ai-chat-header-text h3 {
    font-size: 15px;
    font-weight: 600;
    margin: 0;
  }
  .ai-chat-header-text span {
    font-size: 11px;
    opacity: 0.8;
  }
  .ai-voice-mode-toggle {
    background: rgba(255,255,255,0.2);
    border: none;
    border-radius: 20px;
    padding: 6px 12px;
    color: white;
    font-size: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
  }
  .ai-voice-mode-toggle:hover {
    background: rgba(255,255,255,0.3);
  }
  .ai-voice-mode-toggle.active {
    background: rgba(255,255,255,0.9);
    color: var(--green);
  }
  .ai-voice-mode-toggle .icon {
    font-size: 14px;
  }
  .ai-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: var(--bg);
  }
  .ai-message {
    max-width: 85%;
    padding: 10px 14px;
    border-radius: 16px;
    font-size: 14px;
    line-height: 1.5;
  }
  .ai-message.user {
    background: var(--green);
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
  }
  .ai-message.assistant {
    background: var(--bg-card);
    color: var(--text);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    border: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .ai-message-text {
    word-wrap: break-word;
    overflow-wrap: break-word;
  }
  .ai-feedback-buttons {
    display: flex;
    gap: 6px;
    margin-top: 4px;
    padding-top: 8px;
    border-top: 1px solid var(--border-light);
  }
  .ai-message.assistant .ai-feedback {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--border-light);
  }
  .ai-feedback-btn {
    background: transparent;
    border: none;
    border-radius: 8px;
    padding: 6px 8px;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.6;
    transition: all 0.2s ease;
    min-width: 32px;
    height: 32px;
  }
  .ai-feedback-btn:hover {
    opacity: 1;
    background: var(--bg);
    transform: scale(1.1);
  }
  .ai-feedback-btn:disabled {
    cursor: not-allowed;
  }
  .ai-feedback-btn.selected {
    opacity: 1;
    background: var(--green);
    color: white;
  }
  .ai-feedback-btn.selected-bad {
    opacity: 1;
    background: var(--danger, #c45c4a);
    color: white;
  }
  .ai-message .data-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px;
    margin-top: 8px;
  }
  .ai-message .data-card h4 {
    font-size: 12px;
    color: var(--green);
    margin: 0 0 8px 0;
    font-weight: 600;
  }
  .ai-message .data-card .metric {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    font-size: 13px;
    border-bottom: 1px solid var(--border-light);
  }
  .ai-message .data-card .metric:last-child { border-bottom: none; }
  .ai-message .data-card .metric-label { color: var(--text-muted); }
  .ai-message .data-card .metric-value { font-weight: 600; color: var(--text); }
  .ai-typing {
    display: flex;
    gap: 4px;
    padding: 12px 14px;
  }
  .ai-typing span {
    width: 8px;
    height: 8px;
    background: var(--text-light);
    border-radius: 50%;
    animation: aiBounce 1.4s infinite ease-in-out;
  }
  .ai-typing span:nth-child(1) { animation-delay: -0.32s; }
  .ai-typing span:nth-child(2) { animation-delay: -0.16s; }
  @keyframes aiBounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
  }
  .ai-quick-actions {
    padding: 8px 12px;
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-light);
  }
  .ai-quick-btn {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 5px 10px;
    font-size: 11px;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-muted);
  }
  .ai-quick-btn:hover {
    background: var(--green);
    color: white;
    border-color: var(--green);
  }
  .ai-chat-input-area {
    padding: 12px;
    background: var(--bg-card);
    border-top: 1px solid var(--border-light);
    display: flex;
    gap: 8px;
  }
  .ai-chat-input {
    flex: 1;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 10px 14px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
    background: var(--bg);
    color: var(--text);
  }
  .ai-chat-input:focus { border-color: var(--green); }
  .ai-chat-input::placeholder { color: var(--text-light); }
  .ai-chat-send {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--green);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
  }
  .ai-chat-send:hover { background: var(--green-dark); }
  .ai-chat-send:disabled { background: var(--text-light); cursor: not-allowed; }
  .ai-chat-send svg { width: 16px; height: 16px; fill: white; }

  /* Voice button styles */
  .ai-voice-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--bg);
    border: 1px solid var(--border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    font-size: 16px;
  }
  .ai-voice-btn:hover { border-color: var(--green); background: var(--bg-card); }
  .ai-voice-btn.listening {
    background: var(--danger);
    border-color: var(--danger);
    animation: pulse-voice 1.5s infinite;
  }
  .ai-voice-btn.not-supported { opacity: 0.4; cursor: not-allowed; }
  @keyframes pulse-voice {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
  }

  /* Voice mode toggle in header */
  .ai-chat-header-text { flex: 1; }
  .ai-voice-mode-toggle {
    background: rgba(255,255,255,0.2);
    border: none;
    border-radius: 20px;
    padding: 6px 12px;
    color: white;
    font-size: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
  }
  .ai-voice-mode-toggle:hover { background: rgba(255,255,255,0.3); }
  .ai-voice-mode-toggle.active {
    background: rgba(255,255,255,0.9);
    color: var(--green);
  }
  .ai-voice-mode-toggle .icon { font-size: 14px; }

  /* Speak button on messages */
  .ai-speak-btn {
    background: none;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 4px 10px;
    font-size: 11px;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.2s;
  }
  .ai-speak-btn:hover { background: var(--bg); border-color: var(--green); color: var(--green); }
  .ai-speak-btn.speaking { background: var(--green); color: white; border-color: var(--green); }

  /* Voice status indicator */
  .ai-voice-status {
    position: absolute;
    bottom: 70px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(239, 68, 68, 0.95);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    gap: 8px;
  }
  .ai-voice-status.active { display: flex; }

  /* Mobile improvements */
  @media (max-width: 480px) {
    .ai-chat-panel {
      position: fixed;
      top: 0;
      left: auto;
      right: -100%;
      bottom: 0;
      width: 100vw;
      height: 100vh;
      max-height: 100vh;
      border-radius: 0;
      border: none;
    }
    .ai-chat-panel.open {
      right: 0;
    }
    .ai-chat-toggle { width: 54px; height: 54px; }
    .ai-chat-header { padding: 16px; }
    .ai-chat-header-text h3 { font-size: 16px; }
    .ai-voice-mode-toggle { padding: 8px 14px; }
    .ai-quick-actions { padding: 12px; gap: 8px; }
    .ai-quick-btn { padding: 10px 14px; font-size: 13px; min-height: 44px; }
    .ai-chat-messages { padding: 12px; }
    .ai-chat-input-area { padding: 12px; padding-bottom: max(12px, env(safe-area-inset-bottom)); }
    .ai-chat-input { padding: 14px 16px; font-size: 16px; } /* Prevents iOS zoom */
    .ai-voice-btn { width: 44px; height: 44px; }
    .ai-chat-send { width: 44px; height: 44px; }
  }

  /* Accessibility: Focus indicators for keyboard navigation */
  .nav-item:focus,
  .tool-btn:focus,
  .ai-quick-btn:focus,
  .date-chip:focus,
  .compare-option:focus,
  .header-btn:focus,
  .widget-help:focus,
  .widget-collapse:focus,
  .widget-hide:focus,
  .widget-resize:focus,
  .widget-drag-handle:focus,
  .ai-chat-send:focus,
  .ai-voice-btn:focus,
  .settings-close:focus,
  .ai-voice-mode-toggle:focus,
  .sidebar-toggle:focus,
  .date-picker-trigger:focus,
  .date-apply-btn:focus,
  .welcome-modal-btn:focus,
  .ai-chat-fab:focus,
  .app-expand-btn:focus {
    outline: 2px solid var(--green, #4a7c59);
    outline-offset: 2px;
  }

  /* Ensure focus is visible on all interactive elements */
  button:focus-visible,
  [role="button"]:focus-visible,
  [role="menuitem"]:focus-visible,
  input:focus-visible,
  a:focus-visible {
    outline: 2px solid var(--green, #4a7c59);
    outline-offset: 2px;
  }

  /* Skip link for keyboard users (visually hidden until focused) */
  .skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--green, #4a7c59);
    color: white;
    padding: 8px;
    z-index: 10000;
    text-decoration: none;
  }
  .skip-link:focus {
    top: 0;
  }
</style>