.sidebar-toggle,.sidebar-mobile-heading,.sidebar-backdrop{display:none}
@media(max-width:700px){
  body{font-size:15px;-webkit-text-size-adjust:100%}
  button,a,input,select,textarea{touch-action:manipulation}
  .auth-card input,.auth-card select,dialog input,dialog select{font-size:16px}
  .sidebar-toggle{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:60px;min-height:44px;padding:8px;background:#f1f4f6;color:#455761;border-radius:9px;font-size:13px;flex-shrink:0}
  .sidebar-backdrop:not([hidden]){display:block;position:fixed;inset:0;z-index:39;background:#152a3b66;backdrop-filter:blur(2px);border:0}
  .shell .sidebar{position:fixed;inset:0 auto 0 0;width:min(330px,88vw);height:100dvh;height:var(--mobile-height,100dvh);padding:max(12px,env(safe-area-inset-top)) 16px max(12px,env(safe-area-inset-bottom));z-index:40;display:flex;flex-direction:column;transform:translateX(-105%);visibility:hidden;transition:transform .18s ease,visibility .18s ease;box-shadow:12px 0 35px #152a3b20;overflow:hidden}
  .mobile-navigation-open .shell .sidebar{transform:translateX(0);visibility:visible}
  .sidebar-mobile-heading{display:flex;align-items:center;justify-content:space-between;flex-shrink:0;font-size:15px;font-weight:600}
  .sidebar-mobile-heading button{width:44px;height:44px;color:inherit;background:transparent;font-size:27px}
  .sidebar .brand{display:none}
  .sidebar .chat-navigation{display:flex;flex:1;flex-direction:column;align-items:stretch;gap:0;min-height:0;overflow:hidden;margin:12px 0 0}
  .sidebar .new-chat-button,.chat-mode .sidebar .new-chat-button{width:100%;min-height:44px;margin:0;padding:10px 12px;font-size:14px}
  .sidebar .chat-section-label{display:block;flex-shrink:0;font-size:12px;margin:18px 8px 8px}
  .sidebar .project-section-heading{display:flex;align-items:center;justify-content:space-between;margin-top:12px;margin-bottom:4px}
  .project-section-heading button{width:44px;height:44px;font-size:24px}
  .sidebar #chat-projects{display:grid;max-height:30dvh;min-height:44px;overflow:auto;flex-shrink:0}
  .sidebar .chat-project,.chat-mode .sidebar .chat-project{display:block;font-size:14px;min-height:44px;padding:12px;text-align:left;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .sidebar .chat-list{display:block;flex:1;min-height:64px;overflow:auto;margin:0;overscroll-behavior:contain}
  .sidebar .chat-list button,.chat-mode .sidebar .chat-list button{display:block;width:100%;max-width:none;min-width:0;min-height:44px;text-align:left;padding:11px 12px;font-size:13px}
  .sidebar .chat-list p{font-size:12px;padding:12px}
  .sidebar .chat-task-badge{font-size:10px;margin-top:4px}
  .sidebar nav{display:grid;grid-template-columns:1fr 1fr;flex-shrink:0;margin-top:10px;padding-top:10px;gap:4px}
  .sidebar nav .nav-item,.chat-mode .sidebar nav .nav-item{min-height:44px;padding:9px 6px;font-size:12px}
  .sidebar .admin-profile{display:flex;padding:12px 0 0;flex-shrink:0;margin-top:10px}
  .sidebar .admin-profile button{width:44px;height:44px}
  .sidebar-note,.workspace-label{display:none}
  .topbar{padding:0 12px;height:60px;gap:8px;position:sticky;top:0;z-index:12}
  .breadcrumb{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:0}
  .breadcrumb>span{display:none}
  .breadcrumb>b{font-size:12px}
  .top-actions{gap:8px;flex-shrink:0}
  .top-actions>.avatar{display:none}
  .task-monitor>summary{min-height:44px;font-size:11px}
  #task-monitor-label{max-width:125px;overflow:hidden;text-overflow:ellipsis}
  .task-monitor-list{top:45px;right:0;width:min(330px,calc(100vw - 24px));max-height:55dvh}
  .task-monitor-item{min-height:52px}
  .chat-mode{overflow:hidden;height:100dvh}
  .chat-mode .shell{height:var(--mobile-height,100dvh);min-height:0;overflow:hidden}
  .chat-mode .main{display:flex;flex-direction:column;height:100%;min-height:0}
  .chat-mode .topbar{flex-shrink:0}
  .chat-mode .page-body{height:auto;min-height:0;flex:1;width:100%;overflow:hidden}
  .chat-topline{height:44px;padding:0 14px;gap:10px}
  .chat-topline>span{flex:1;min-width:0;max-width:none;font-size:12px}
  .chat-topline>div{flex-shrink:0;gap:8px}
  .chat-topline .icon-button{width:44px;height:44px}
  .chat-scroll{min-height:0;padding:12px 16px;overscroll-behavior:contain}
  .message-row,.chat-mode .message-body{font-size:15px}
  .user-bubble{max-width:94%;padding:12px 15px}
  .chat-bottom{padding:5px 12px max(8px,env(safe-area-inset-bottom))}
  .chat-composer{padding:10px;border-radius:17px}
  .chat-composer textarea{font-size:16px;line-height:1.5;min-height:52px;max-height:120px;padding:4px 3px 8px}
  .composer-toolbar{display:block}
  .approval-label{display:none}
  .composer-controls{display:grid;grid-template-columns:minmax(0,1fr) 72px 44px;gap:4px;width:100%;min-width:0}
  .composer-controls #chat-model,.composer-controls #chat-effort{min-width:0;max-width:none;width:100%;font-size:16px;min-height:44px;padding:8px 3px;text-overflow:ellipsis}
  .chat-send,.chat-stop{width:44px;height:44px;min-width:44px;margin:0}
  .composer-foot{font-size:10px;align-items:center;margin:3px 4px 0}
  .composer-foot button{min-height:36px;font-size:10px}
  .task-progress{padding:5px 3px 8px;max-height:24dvh;overflow:auto}
  .task-current-step{font-size:13px;margin:4px 0 0}
  .task-last-update{font-size:10px}
  .task-plan-box ol{max-height:70px}
  .approval-card input,.approval-card select{font-size:16px}
  .approval-card button,.chat-suggestions button{min-height:44px;font-size:12px}
  .code-toolbar button{min-height:32px;font-size:12px}
  dialog{max-height:calc(var(--mobile-height,100dvh) - 24px);overflow:auto;padding:20px}
  .dialog-heading .icon-button{width:44px;height:44px}
}
@media(max-width:700px) and (max-height:560px){.chat-topline{display:none}.chat-composer textarea{min-height:40px}.composer-foot{display:none}.task-last-update,.task-connection-label{display:none}.task-progress{padding:3px}.task-current-step{font-size:12px}}
@media(prefers-reduced-motion:reduce){.shell .sidebar{transition:none}}