/* themes.css */
body[data-theme="light"] {
  --bg: #f3f4f6;
  --card: #ffffff;
  --text: #111827;
  --muted: #6b7280;
}
body[data-theme="light"] input,
body[data-theme="light"] .list-item,
body[data-theme="light"] .chat-box {
  background:#f9fafb;
  border-color:#e5e7eb;
}
body[data-theme="light"] .nav-btn { background:#e5e7eb; color:#111; }
body[data-theme="light"] .nav-btn.active { background:var(--accent); color:white; }