*{box-sizing:border-box}
body{margin:0;padding:24px;background:#f4f7fb;font:15px/1.6 Arial,"Microsoft YaHei",sans-serif;color:#142644}
main{max-width:760px;margin:0 auto;background:#fff;border:1px solid #e2e8f2;border-radius:16px;padding:28px}
h1{font-size:22px;margin:0 0 4px}
.sub{color:#52647e;font-size:13px;margin-bottom:20px;line-height:1.6}
fieldset{border:1px solid #e2e8f2;border-radius:10px;padding:14px 16px;margin:0 0 14px}
legend{padding:0 8px;font-weight:bold;color:#3374ff;font-size:14px}
.row{display:grid;grid-template-columns:110px 1fr;gap:8px;align-items:center;margin-bottom:8px}
.row:last-child{margin-bottom:0}
label{color:#52647e;font-size:13px}
input{width:100%;padding:9px 11px;border:1px solid #cad6eb;border-radius:8px;font:inherit;font-size:14px}
input:focus{outline:2px solid #3374ff;border-color:#3374ff}
select{padding:9px 11px;border:1px solid #cad6eb;border-radius:8px;font:inherit;font-size:14px;width:100%}
textarea{width:100%;height:220px;padding:10px;border:1px solid #cad6eb;border-radius:8px;font:13px/1.5 Consolas,monospace;background:#fafcff;resize:vertical}
textarea:focus{outline:2px solid #3374ff;border-color:#3374ff}
.actions{margin-top:18px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
button{padding:11px 22px;border:0;border-radius:8px;background:#3374ff;color:#fff;font:inherit;font-size:15px;cursor:pointer}
button.sec{background:#fff;color:#3374ff;border:1px solid #3374ff}
button.danger{background:#fff;color:#a52332;border:1px solid #a52332}
#msg{margin-left:8px;font-size:14px;color:#1a7f37}
#msg.err{color:#a52332}
.out{margin-top:20px;padding:14px;background:#f0f6ff;border:1px dashed #3374ff;border-radius:10px;display:none}
.out .t{font-weight:bold;margin-bottom:8px;font-size:14px}
.out textarea{width:100%;height:50px;padding:8px;border:1px solid #cad6eb;border-radius:8px;font:inherit;font-size:12px;background:#fff;resize:vertical}
.out .row2{display:flex;gap:8px;margin-top:8px;flex-wrap:wrap}
.out .row2 button{padding:8px 14px;font-size:13px}
.hint{color:#8494ab;font-size:12px;margin-top:6px;line-height:1.6}
#gate,#login-gate{position:fixed;inset:0;background:#f4f7fb;display:flex;align-items:center;justify-content:center;z-index:9999}
#gate .box,#login-gate .box{background:#fff;border:1px solid #e2e8f2;border-radius:16px;padding:32px;width:320px;text-align:center}
#gate h2,#login-gate h2{margin:0 0 6px;font-size:18px}
#gate p,#login-gate p{margin:0 0 16px;color:#52647e;font-size:13px}
#gate input,#login-gate input{width:100%;padding:11px;border:1px solid #cad6eb;border-radius:8px;font:inherit;text-align:center;margin-bottom:10px}
#login-gate input{text-align:left}
#gate button,#login-gate button{width:100%;padding:11px;border:0;border-radius:8px;background:#3374ff;color:#fff;font:inherit;cursor:pointer}
#gate .err,#login-gate .err{color:#a52332;font-size:13px;min-height:18px;margin-top:8px}
#gate.shake{animation:shk .3s}
@keyframes shk{0%,100%{transform:translateX(0)}25%{transform:translateX(-8px)}75%{transform:translateX(8px)}}
.hidden{display:none!important}

body.login-page{padding:0;min-height:100vh;display:flex;align-items:center;justify-content:center;background:#f4f7fb}
.login-card{width:100%;max-width:380px;background:#fff;border:1px solid #e2e8f2;border-radius:16px;padding:32px 28px;box-shadow:0 8px 32px rgba(20,38,68,.06)}
.login-card h1{margin:0 0 6px;font-size:20px;text-align:center}
.login-sub{margin:0 0 22px;color:#52647e;font-size:13px;text-align:center}
.login-label{display:block;font-size:13px;color:#52647e;margin:0 0 4px}
.login-card input{margin-bottom:12px}
.login-card button{width:100%;margin-top:4px}
.login-card .err{text-align:center;margin-top:10px;min-height:18px}

body.admin-page{padding:0;height:100vh;overflow:hidden}
.admin-shell{display:flex;height:100vh;max-height:100vh;overflow:hidden;background:#f4f7fb}
.admin-shell.hidden{display:none!important}
.sidebar{width:220px;flex-shrink:0;height:100%;max-height:100vh;background:#fff;border-right:1px solid #e2e8f2;display:flex;flex-direction:column;padding:20px 0;overflow:hidden}
.sidebar-brand{padding:0 20px 16px;font-weight:bold;font-size:15px;color:#3374ff;border-bottom:1px solid #e2e8f2;margin-bottom:8px}
.sidebar-nav{display:flex;flex-direction:column;gap:4px;padding:8px 10px;flex:1;min-height:0;overflow-y:auto}
.nav-item{text-align:left;padding:10px 14px;border:0;border-radius:8px;background:transparent;color:#142644;font:inherit;font-size:14px;cursor:pointer}
.nav-item:hover{background:#f0f6ff}
.nav-item.active{background:#3374ff;color:#fff}
.sidebar-foot{padding:12px 16px;border-top:1px solid #e2e8f2}
.sidebar-user{font-size:12px;color:#52647e;margin-bottom:8px;word-break:break-all}
.sidebar-pwd{width:100%;padding:8px;font-size:13px;margin-bottom:8px}
.sidebar-logout{width:100%;padding:8px;font-size:13px}

.users-toolbar{margin:0 0 14px;display:flex;align-items:center;gap:10px}
.users-toolbar button{padding:9px 18px;font-size:14px}

.tasks-detail-head{display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap}
.tasks-detail-head #del-task{flex-shrink:0;white-space:nowrap;padding:8px 14px;font-size:14px}
.tasks-detail-title{flex:1;min-width:0;font-weight:bold;font-size:16px;color:#142644}
.tasks-detail-actions{display:flex;gap:10px;margin:0 0 14px;align-items:stretch}
.tasks-detail-actions button{flex:1;min-width:0;padding:9px 14px;font-size:14px}
#tasks-legacy-picker select{width:100%;max-width:100%}
select.hidden,.tasks-col-owner.hidden{display:none!important}

.modal-overlay{position:fixed;inset:0;background:rgba(20,38,68,.35);display:flex;align-items:center;justify-content:center;z-index:10000;padding:16px}
.modal-overlay.hidden{display:none!important}
.modal-box{width:100%;max-width:440px;background:#fff;border:1px solid #e2e8f2;border-radius:16px;padding:24px 22px;box-shadow:0 12px 40px rgba(20,38,68,.12)}
.modal-box h2{margin:0 0 16px;font-size:18px;color:#142644}
.modal-box-sm{max-width:400px}
.modal-box-wide{max-width:520px;max-height:min(88vh,720px);display:flex;flex-direction:column}
.pool-invalid-list-wrap{flex:1;min-height:0;max-height:min(42vh,360px);overflow-y:auto;margin:8px 0;border:1px solid #e2e8f2;border-radius:8px;padding:8px 10px;background:#fafcff;-webkit-overflow-scrolling:touch}
.pool-invalid-list{margin:0;padding:0;list-style:none;font-size:13px;line-height:1.5}
.pool-invalid-list li{padding:8px 0;border-bottom:1px solid #e8eef5}
.pool-invalid-list li:last-child{border-bottom:0}
.pool-invalid-list .vid{color:#52647e;font-size:12px;word-break:break-all}
.pool-check-msg{display:block;margin-top:6px;font-size:13px}
.modal-text{margin:0 0 8px;color:#52647e;font-size:14px;line-height:1.6}
.modal-actions .danger{padding:9px 18px;font-size:14px}
.modal-actions{margin-top:16px;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.modal-actions button{padding:9px 18px;font-size:14px}

.pwd-actions{display:flex;justify-content:center;align-items:center;gap:12px;margin-top:4px}
.pwd-actions button{width:auto;padding:10px 22px;font-size:14px}
.pwd-actions-msg{text-align:center;margin:10px 0 0;min-height:18px}

.content-wrap{flex:1;min-width:0;min-height:0;height:100%;padding:24px;overflow-x:hidden;overflow-y:auto;-webkit-overflow-scrolling:touch}
.view-panel{display:block}
.view-panel.hidden{display:none!important}
.page-card{max-width:760px;background:#fff;border:1px solid #e2e8f2;border-radius:16px;padding:28px}
.page-card-wide{max-width:900px}
.page-card h1{margin:0 0 4px;font-size:22px}

.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;margin:16px 0}
.stat-box{background:#f0f6ff;border-radius:10px;padding:16px;text-align:center}
.stat-n{font-size:28px;font-weight:bold;color:#3374ff}
.stat-l{font-size:12px;color:#52647e;margin-top:4px}

.table-wrap{overflow:auto;margin-top:12px}
.data-table{width:100%;border-collapse:collapse;font-size:13px}
.data-table th,.data-table td{border:1px solid #e2e8f2;padding:8px 10px;text-align:left}
.data-table th{background:#f4f7fb;color:#52647e;font-weight:600}
.data-table button.sec,.data-table button.danger{padding:4px 10px;font-size:12px}

.table-pagination{margin-top:14px;display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:#52647e}
.table-pagination .page-info{flex:1;min-width:120px}
.table-pagination button{padding:6px 14px;font-size:13px}

.mobile-topbar{display:none}
.sidebar-backdrop{display:none}

@media(max-width:768px){
  body.admin-page{
    height:100dvh;height:100vh;overflow:hidden;position:fixed;inset:0;width:100%;
    overscroll-behavior:none
  }
  body.admin-page.admin-nav-open{overflow:hidden}

  .admin-shell{
    position:fixed;inset:0;display:flex;flex-direction:column;width:100%;
    height:100dvh;height:100vh;max-height:100dvh;max-height:100vh;
    overflow:hidden;background:#f4f7fb;
    isolation:isolate
  }
  .admin-shell.hidden{display:none!important}

  .sidebar-backdrop{
    display:block;position:fixed;inset:0;background:rgba(20,38,68,.45);z-index:900;
    opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease
  }
  body.admin-nav-open .sidebar-backdrop{opacity:1;visibility:visible}

  .sidebar{
    position:fixed;top:0;left:0;bottom:0;z-index:910;width:min(86vw,280px);max-width:280px;
    height:100%;max-height:none;border-right:1px solid #e2e8f2;box-shadow:4px 0 24px rgba(20,38,68,.12);
    transform:translateX(-105%);transition:transform .22s ease;flex-direction:column;flex-wrap:nowrap
  }
  body.admin-nav-open .sidebar{transform:translateX(0)}

  .sidebar-brand h1{font-size:16px;margin:0}
  .sidebar-nav{flex-direction:column;flex-wrap:nowrap;overflow-y:auto;-webkit-overflow-scrolling:touch}
  .nav-item{padding:12px 14px;font-size:15px;min-height:44px}
  .sidebar-foot{border-top:1px solid #e2e8f2;width:100%;padding-bottom:max(12px,env(safe-area-inset-bottom))}

  .mobile-topbar{
    display:flex;align-items:center;gap:10px;flex-shrink:0;width:100%;
    position:relative;z-index:850;
    margin:0;padding:8px 14px 10px;padding-top:max(8px,env(safe-area-inset-top));
    background:#f4f7fb;border-bottom:1px solid #e2e8f2;
    box-shadow:0 4px 12px rgba(20,38,68,.06)
  }
  .mobile-menu-btn{
    flex-shrink:0;width:44px;height:44px;padding:0;border:1px solid #cad6eb;border-radius:10px;
    background:#fff;color:#142644;font-size:20px;line-height:1;cursor:pointer
  }
  .mobile-topbar-title{font-weight:600;font-size:16px;color:#142644;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

  .content-wrap{
    flex:1 1 auto;width:100%;min-height:0;position:relative;z-index:1;
    padding:12px 14px 0;
    overflow-x:hidden;overflow-y:auto;-webkit-overflow-scrolling:touch;
    overscroll-behavior-y:contain;touch-action:pan-y;
    scroll-padding-bottom:calc(56px + env(safe-area-inset-bottom,0px))
  }

  .view-panel::after{
    content:'';display:block;flex-shrink:0;
    height:calc(56px + env(safe-area-inset-bottom,0px));width:100%
  }

  #view-tasks{display:block;min-height:0}
  #tasks-detail-wrap,#tasks-list-wrap{min-height:0}

  .page-card,.page-card-wide{
    max-width:none;padding:16px 14px calc(20px + env(safe-area-inset-bottom,0px));border-radius:12px;
    margin-bottom:12px
  }
  .page-card fieldset:last-of-type{margin-bottom:0}
  .page-card h1{font-size:18px}
  .sub{font-size:12px;margin-bottom:14px}

  .row{grid-template-columns:1fr;gap:4px;align-items:stretch;margin-bottom:12px}
  .row label{margin-bottom:2px}
  .page-card .row>div:has(>button){
    display:flex;flex-direction:column;align-items:stretch;gap:8px
  }
  .page-card .row>div:has(>button) button{
    width:100%;min-height:44px;margin:0
  }
  .page-card .row>div:has(>button) span[id$='-msg']{order:2;font-size:13px}

  .users-toolbar button,.actions button,.users-toolbar{align-items:stretch}
  .users-toolbar button{width:100%;max-width:100%}
  #task-list-new{width:auto;max-width:100%}

  .tasks-detail-head{gap:8px}
  .tasks-detail-head .sec{flex:1 1 auto;min-width:0}
  .tasks-detail-actions{flex-direction:row}

  .actions{flex-direction:column;align-items:stretch}
  .actions button{width:100%}
  #msg{margin-left:0;margin-top:6px;text-align:center}

  .pwd-actions{flex-direction:column;width:100%}
  .pwd-actions button{width:100%}

  .table-wrap{margin-left:-4px;margin-right:-4px;padding-bottom:4px}
  .data-table{min-width:520px;font-size:12px}
  .data-table th,.data-table td{padding:8px 8px}
  .data-table td:last-child{white-space:normal}
  .data-table td:last-child button{display:inline-block;margin:3px 4px 3px 0;min-height:36px;padding:6px 10px}

  .table-pagination{flex-direction:column;align-items:stretch}
  .table-pagination .page-info{text-align:center;flex:none}
  .table-pagination button{width:100%;min-height:44px}

  .stat-grid{grid-template-columns:1fr 1fr}
  .stat-n{font-size:22px}

  .modal-overlay{padding:12px;align-items:flex-end}
  .modal-box{max-height:min(88vh,640px);overflow-y:auto;border-radius:16px 16px 12px 12px;padding:20px 16px}
  .modal-actions{flex-direction:column;align-items:stretch}
  .modal-actions button{width:100%;min-height:44px}

  .out .row2 button{flex:1 1 calc(50% - 4px);min-width:0;min-height:40px}

  body.login-page{padding:16px;align-items:flex-start;padding-top:max(24px,env(safe-area-inset-top))}
  .login-card{padding:24px 18px;border-radius:12px}
}

@media(max-width:400px){
  .stat-grid{grid-template-columns:1fr}
  .data-table{min-width:480px}
}