:root{
  --bg:#F4F6F7;
  --surface:#FFFFFF;
  --ink:#16241F;
  --muted:#5E6E68;
  --primary:#0F5C4C;
  --primary-dark:#0A4136;
  --primary-soft:#E4F0EB;
  --warn:#9A6B12;
  --warn-soft:#FBF1DC;
  --error:#A6362C;
  --error-soft:#FBE7E4;
  --ok:#2D7A4F;
  --ok-soft:#E5F4EC;
  --border:#DCE2E0;
  --locked:#7A4FB5;
  --locked-soft:#EFE7F8;
  --radius:10px;
  --font-display:"Sora","Segoe UI",system-ui,sans-serif;
  --font-body:"Segoe UI",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:14px;line-height:1.5;}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:650;margin:0;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:14px;}
a{color:var(--primary);}

/* ---------- Login screen ---------- */
#loginScreen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#0A4136,#0F5C4C 55%,#16735F);}
.login-card{background:var(--surface);border-radius:16px;padding:36px;width:440px;box-shadow:0 24px 60px rgba(10,40,30,.35);}
.login-logo{display:block;width:260px;max-width:100%;height:auto;margin:0 auto 18px;}
.login-card .eyebrow{letter-spacing:.12em;text-transform:uppercase;font-size:11px;color:var(--primary);font-weight:700;}
.login-card h1{font-size:24px;margin:6px 0 4px;}
.login-card p.sub{color:var(--muted);margin:0 0 24px;font-size:13px;}
.brand-tagline{font-size:13px;color:var(--primary-dark);font-weight:700;margin:6px 0 12px;}
.brand-features{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 22px;}
.brand-features span{background:var(--primary-soft);color:var(--primary-dark);border:1px solid #BFE0D3;border-radius:999px;padding:4px 9px;font-size:11.5px;font-weight:700;}
.login-group{margin-bottom:16px;}
.login-group label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px;font-weight:600;}
.login-group select,.login-group input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:#fff;}
.login-card h2{font-size:18px;margin:14px 0 6px;}
.login-btn{width:100%;padding:12px;border:none;border-radius:8px;background:var(--primary);color:#fff;font-weight:700;font-size:14px;margin-top:8px;}
.login-btn:hover{background:var(--primary-dark);}
.login-note{margin-top:18px;font-size:11.5px;color:var(--muted);background:var(--bg);padding:10px 12px;border-radius:8px;}

/* ---------- App shell ---------- */
#app{display:none;}
.topbar{background:var(--primary-dark);color:#fff;padding:10px 22px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.topbar .brand{font-family:var(--font-display);font-weight:700;font-size:15px;letter-spacing:.02em;display:flex;align-items:center;gap:10px;}
.topbar .brand img{width:92px;height:26px;object-fit:contain;background:#fff;border-radius:4px;padding:2px 5px;}
.topbar .who{display:flex;align-items:center;gap:10px;font-size:12.5px;flex-wrap:wrap;}
.role-pill{background:rgba(255,255,255,.15);padding:4px 10px;border-radius:999px;font-weight:600;}
.period-pill{background:rgba(255,255,255,.1);padding:4px 10px;border-radius:999px;font-size:12px;}
.topbar select{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.3);border-radius:6px;padding:4px 8px;font-size:12px;}
.topbar select option{color:#000;}
.logout-btn{background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff;padding:5px 12px;border-radius:6px;font-size:12px;}
.logout-btn:hover{background:rgba(255,255,255,.12);}
.mobile-nav-toggle{display:none;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.42);color:#fff;border-radius:8px;padding:8px 11px;font-weight:700;}
.mobile-nav-backdrop{display:none;}
.mobile-nav-heading,.mobile-nav-account{display:none;}

.tabs{display:flex;gap:2px;background:var(--surface);border-bottom:1px solid var(--border);padding:0 18px;overflow-x:auto;}
.tab-btn{padding:13px 16px;border:none;background:none;font-size:13.5px;color:var(--muted);font-weight:600;border-bottom:3px solid transparent;white-space:nowrap;}
.tab-btn.active{color:var(--primary);border-bottom-color:var(--primary);}
.tab-btn:hover{color:var(--primary-dark);}

.main{padding:22px;max-width:1340px;margin:0 auto;}
.panel{display:none;}
.panel.active{display:block;}

.lockbar{display:flex;align-items:center;gap:10px;background:var(--locked-soft);color:var(--locked);border:1px solid #D9C9F0;padding:10px 14px;border-radius:8px;margin-bottom:16px;font-size:13px;font-weight:600;}
.infobar{display:flex;align-items:center;gap:10px;background:var(--primary-soft);color:var(--primary-dark);border:1px solid #BFE0D3;padding:10px 14px;border-radius:8px;margin-bottom:16px;font-size:12.5px;}

.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin-bottom:16px;}
.card h3{font-size:15px;margin-bottom:12px;}
.card h3 .hint{font-weight:400;font-size:11.5px;color:var(--muted);margin-left:8px;}
.grid{display:grid;gap:14px;}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
@media(max-width:900px){.grid-4,.grid-3,.grid-2{grid-template-columns:1fr 1fr;}}

.employee-card-list{display:grid;gap:14px;max-width:980px;margin:0 auto;}
.employee-profile-card{border:1px solid var(--border);border-radius:12px;background:#fff;padding:14px;box-shadow:0 1px 0 rgba(22,36,31,.02);}
.employee-profile-card + .employee-profile-card{margin-top:0;padding-top:14px;border-top:1px solid var(--border);}
.employee-profile-grid{display:grid;grid-template-columns:1fr;gap:8px;align-items:stretch;}
.profile-field{border:1px solid var(--border);border-radius:9px;padding:10px 14px;background:#FAFBFA;min-width:0;min-height:50px;display:grid;grid-template-columns:160px minmax(0,1fr);align-items:center;column-gap:18px;}
.profile-field span{display:block;font-size:11.5px;color:var(--muted);font-weight:700;margin-bottom:0;line-height:1.2;}
.profile-field b{display:block;font-size:13.5px;font-weight:700;word-break:break-word;line-height:1.35;}
.profile-field-wide{grid-column:auto;min-height:50px;}
.profile-actions{background:#FFFFFF;}
.profile-actions .btn-row{margin-top:0;}
.table-wrap{width:100%;overflow-x:auto;overscroll-behavior-inline:contain;-webkit-overflow-scrolling:touch;}
.table-wrap table{min-width:1180px;}
.nowrap{white-space:nowrap;}
.employee-master-table{min-width:max-content!important;width:max-content;}
.employee-master-table th,.employee-master-table td{white-space:nowrap;}
.employee-row-actions{flex-wrap:nowrap;}
.employee-master-table .employee-row-actions>.btn{box-sizing:border-box;flex:0 0 84px;width:84px;min-width:84px;white-space:nowrap;}
.employee-master-table .employee-row-actions>.employee-wide-action{flex:0 0 auto;width:auto;min-width:max-content;}
@media(max-width:700px){
  .employee-card-list{max-width:none;}
  .profile-field{grid-template-columns:1fr;row-gap:6px;align-items:start;}
}

.kpi{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;}
.kpi .label{font-size:11.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-weight:700;}
.kpi .value{font-size:22px;font-weight:700;margin-top:6px;font-family:var(--font-display);}

table{width:100%;border-collapse:collapse;font-size:13px;}
th{text-align:left;color:var(--muted);font-size:11.5px;text-transform:uppercase;letter-spacing:.04em;padding:8px 10px;border-bottom:2px solid var(--border);}
td{padding:9px 10px;border-bottom:1px solid var(--border);vertical-align:middle;}
tr:hover td{background:#FAFBFA;}

.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:11.5px;font-weight:700;}
.badge.ok{background:var(--ok-soft);color:var(--ok);}
.badge.warn{background:var(--warn-soft);color:var(--warn);}
.badge.error{background:var(--error-soft);color:var(--error);}
.badge.info{background:var(--primary-soft);color:var(--primary);}
.badge.locked{background:var(--locked-soft);color:var(--locked);}
.badge.muted{background:#EEF0EF;color:#7c857f;}

.btn{padding:7px 14px;border-radius:7px;border:1px solid var(--border);background:#fff;font-size:12.5px;font-weight:600;color:var(--ink);}
.btn[href]{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;}
.btn:hover{border-color:var(--primary);color:var(--primary);}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff;}
.btn.primary:hover{background:var(--primary-dark);}
.btn.danger{background:var(--error);border-color:var(--error);color:#fff;}
.btn.ghost{background:transparent;border:1px dashed var(--border);}
.btn:disabled{opacity:.4;cursor:not-allowed;}
.btn-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center;}

.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;align-items:end;margin-bottom:10px;}
.form-row label{display:block;font-size:11.5px;color:var(--muted);font-weight:600;margin-bottom:4px;}
.form-row input,.form-row select{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:6px;}
.password-change-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px;align-items:end;}
.password-change-grid label{display:block;font-size:11.5px;color:var(--muted);font-weight:600;margin-bottom:4px;}
.password-change-grid input{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:6px;}
.password-current{grid-column:1;grid-row:1;}.password-new{grid-column:1;grid-row:2;}.password-confirm{grid-column:2;grid-row:2;}
@media(max-width:600px){.password-change-grid{grid-template-columns:1fr;}.password-current,.password-new,.password-confirm{grid-column:1;grid-row:auto;}}
.field-error{color:var(--error);font-size:11px;margin-top:3px;}

.workflow-steps{display:flex;gap:0;}
.wstep{flex:1;text-align:center;padding:14px 8px;border-right:1px solid var(--border);position:relative;}
.wstep:last-child{border-right:none;}
.wstep .wname{font-size:12px;font-weight:700;margin-bottom:6px;}
.wstep .wnote{font-size:11px;color:var(--muted);}

.payroll-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:8px;}
.step-btn{border:1px solid var(--border);background:#fff;border-radius:8px;padding:10px 12px;text-align:left;font-weight:700;color:var(--muted);}
.step-btn.active{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-dark);}
.step-btn:hover{border-color:var(--primary);color:var(--primary);}
@media(max-width:800px){.payroll-steps{grid-template-columns:1fr 1fr;}}

.trace-row{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px dashed var(--border);font-size:12.5px;}
.trace-row .f{color:var(--muted);font-size:11px;}
.trace-row .v{font-weight:700;font-family:var(--font-display);}

.empty{color:var(--muted);font-size:13px;padding:14px 0;text-align:center;}
.note-box{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:12px 14px;font-size:12.5px;color:var(--muted);}
.section-title{font-size:13px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin:18px 0 8px;}
.detail-toggle{font-size:12px;color:var(--primary);font-weight:700;background:none;border:none;padding:0;}
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(10,30,25,.45);align-items:center;justify-content:center;z-index:50;}
.modal-overlay.active{display:flex;}
.modal{background:#fff;border-radius:12px;padding:22px;width:480px;max-width:90vw;max-height:85vh;overflow:auto;}
.modal h3{margin-bottom:14px;}
.toast{position:fixed;bottom:20px;right:20px;background:var(--primary-dark);color:#fff;padding:12px 18px;border-radius:8px;font-size:13px;font-weight:600;box-shadow:0 10px 30px rgba(0,0,0,.25);z-index:80;opacity:0;transform:translateY(10px);transition:.25s;}
.toast.show{opacity:1;transform:translateY(0);}
.file-input-label{display:inline-block;padding:7px 14px;border-radius:7px;border:1px solid rgba(255,255,255,.4);background:transparent;color:#fff;font-size:12px;font-weight:600;cursor:pointer;}

.required-mark{color:var(--error);font-weight:800;margin-left:2px;}

/* ---------- Audit centre ---------- */
.audit-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:14px;}
.audit-heading h3{margin-bottom:3px;}
.audit-filters{display:grid;grid-template-columns:minmax(220px,2fr) minmax(180px,1.2fr) minmax(140px,1fr) minmax(140px,1fr) auto;gap:10px;align-items:end;margin-bottom:14px;}
.audit-filters label{display:flex;flex-direction:column;gap:5px;color:var(--muted);font-size:11px;font-weight:700;}
.audit-filters input,.audit-filters select{min-height:38px;}
.audit-action{display:inline-block;padding:3px 7px;border-radius:999px;background:var(--primary-soft);color:var(--primary-dark);font-size:11px;font-weight:700;white-space:nowrap;}
.audit-detail{color:var(--muted);font-size:12px;max-width:420px;overflow-wrap:anywhere;}
.audit-pagination{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:12px;}
.audit-pagination .btn-row{width:auto;}
.audit-full-detail{white-space:pre-wrap;overflow-wrap:anywhere;color:var(--text);}

/* ---------- New employee onboarding centre ---------- */
.onboarding-heading{display:grid;grid-template-columns:minmax(220px,.8fr) minmax(560px,2fr);gap:18px;align-items:center;}
.onboarding-heading h3{margin-bottom:4px;}
.onboarding-kpis{gap:10px;}
.onboarding-kpis .kpi{padding:12px;}
.onboarding-kpis .value{font-size:20px;}
.onboarding-filters{display:grid;grid-template-columns:minmax(230px,2fr) minmax(190px,1.2fr) minmax(160px,1fr) auto;gap:10px;align-items:end;margin-bottom:14px;}
.onboarding-filters label{display:block;color:var(--muted);font-size:11px;font-weight:700;margin-bottom:5px;}
.onboarding-filters input,.onboarding-filters select{width:100%;min-height:38px;}
.onboarding-progress{display:inline-block;width:95px;height:8px;margin-right:8px;border-radius:999px;background:#E8ECEA;overflow:hidden;vertical-align:middle;}
.onboarding-progress-bar{height:100%;border-radius:inherit;background:var(--warn);}
.onboarding-progress-bar.ready{background:var(--ok);}
.onboarding-progress-bar.blocked{background:var(--error);}
.onboarding-pending-text{font-size:12px;color:var(--muted);}
.onboarding-pagination{justify-content:flex-end;margin-top:12px;}

/* ---------- Mobile application layout ---------- */
@media(max-width:900px){
  html{overflow-x:hidden;}
  body{font-size:14px;overflow-x:hidden;}
  body.mobile-nav-open,body.modal-open{overflow:hidden;}

  #loginScreen{align-items:flex-start;padding:calc(18px + env(safe-area-inset-top)) 14px calc(18px + env(safe-area-inset-bottom));}
  .login-card{width:100%;max-width:440px;padding:24px 20px;border-radius:14px;box-shadow:0 16px 40px rgba(10,40,30,.28);}
  .login-logo{width:220px;margin-bottom:14px;}
  .login-card h1{font-size:22px;}
  .login-group select,.login-group input,.login-btn{min-height:48px;font-size:16px;}

  .topbar{position:sticky;top:0;z-index:35;padding:calc(8px + env(safe-area-inset-top)) 12px 10px;display:block;}
  .brand-row{width:100%;}
  .topbar .brand img{width:82px;height:28px;}
  .mobile-nav-toggle{display:inline-flex;min-height:44px;align-items:center;gap:7px;}
  .topbar .who{display:grid;grid-template-columns:1fr 1fr;width:100%;gap:8px;margin-top:9px;}
  .topbar .who #whoName{align-self:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
  .topbar .who .role-pill{text-align:center;align-self:center;}
  .topbar .who .period-pill{display:none;}
  .topbar .who select{grid-column:1/-1;width:100%;min-height:44px;font-size:16px;padding:7px 10px;}
  .topbar .who .logout-btn{display:none!important;}

  .mobile-nav-backdrop{position:fixed;inset:0;background:rgba(8,27,22,.48);z-index:55;}
  body.mobile-nav-open .mobile-nav-backdrop{display:block;}
  .tabs{position:fixed;inset:0 auto 0 0;z-index:60;width:min(84vw,320px);padding:calc(20px + env(safe-area-inset-top)) 12px calc(20px + env(safe-area-inset-bottom));display:flex;flex-direction:column;align-items:stretch;gap:5px;overflow-y:auto;border:0;box-shadow:12px 0 34px rgba(0,0,0,.22);transform:translateX(-105%);transition:transform .2s ease;background:#fff;}
  body.mobile-nav-open .tabs{transform:translateX(0);}
  .mobile-nav-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:2px 4px 10px;border-bottom:1px solid var(--border);margin-bottom:4px;color:var(--primary-dark);}
  .mobile-nav-heading strong{font-family:var(--font-display);font-size:16px;}
  .mobile-nav-heading button{width:44px;height:44px;border:0;border-radius:8px;background:var(--bg);font-size:26px;line-height:1;color:var(--muted);}
  .tab-btn{width:100%;min-height:46px;padding:11px 13px;border:0;border-radius:8px;text-align:left;font-size:14px;}
  .tab-btn.active{background:var(--primary-soft);color:var(--primary-dark);border:0;}
  .mobile-nav-account{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:auto;padding-top:12px;border-top:1px solid var(--border);}
  .mobile-account-action{min-height:44px;padding:9px 10px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--ink);font-weight:700;}
  .mobile-account-action:last-child{color:var(--error);border-color:#E7C4BF;}

  .main{padding:12px 10px calc(22px + env(safe-area-inset-bottom));width:100%;}
  .card{padding:14px 12px;margin-bottom:12px;border-radius:9px;}
  .card h3{font-size:15px;line-height:1.35;}
  .grid,.grid-4,.grid-3,.grid-2{grid-template-columns:1fr;gap:10px;}
  .kpi{padding:13px;}
  .kpi .value{font-size:20px;}
  .form-row{grid-template-columns:1fr!important;gap:10px;}
  .form-row input,.form-row select,.form-row textarea{min-height:44px;font-size:16px;}
  input[type="search"]{width:100%!important;max-width:none!important;min-height:46px;font-size:16px;}
  select{font-size:16px;}

  .btn-row{width:100%;gap:8px;}
  .btn-row>.btn,.btn-row>a.btn{min-height:44px;flex:1 1 140px;padding:9px 12px;white-space:normal;text-align:center;}
  .btn,.logout-btn,.step-btn{touch-action:manipulation;}
  .workflow-steps{overflow-x:auto;scroll-snap-type:x proximity;}
  .wstep{min-width:150px;scroll-snap-align:start;}
  .payroll-steps{grid-template-columns:1fr;}
  .step-btn{min-height:46px;}

  .table-wrap{border:1px solid var(--border);border-radius:8px;background:#fff;scrollbar-width:thin;}
  .table-wrap:focus{outline:3px solid rgba(15,92,76,.2);outline-offset:1px;}
  .mobile-scroll-table::before{content:"← 左右滑動查看全部欄位 →";display:block;position:sticky;left:0;width:max-content;max-width:calc(100vw - 46px);padding:7px 9px;color:var(--muted);font-size:11px;font-weight:700;background:var(--primary-soft);border-bottom:1px solid var(--border);z-index:4;}
  .table-wrap table{min-width:760px;}
  th,td{padding:9px 8px;}
  th:first-child,td:first-child{position:sticky;left:0;background:#fff;z-index:1;box-shadow:1px 0 0 var(--border);}
  th:first-child{z-index:2;background:#FAFBFA;}
  .table-wrap:has(.mobile-card-table){overflow:visible;border:0;background:transparent;}
  .mobile-card-table{display:block!important;min-width:0!important;width:100%;}
  .mobile-card-table thead{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
  .mobile-card-table tbody{display:grid;gap:10px;}
  .mobile-card-table tr{display:block;border:1px solid var(--border);border-radius:9px;background:#fff;overflow:hidden;}
  .mobile-card-table tr:hover td{background:transparent;}
  .mobile-card-table td{position:static!important;display:grid;grid-template-columns:minmax(104px,36%) minmax(0,1fr);gap:10px;align-items:start;width:100%;min-height:40px;padding:9px 10px;border-bottom:1px solid var(--border);box-shadow:none!important;overflow-wrap:anywhere;}
  .mobile-card-table td:last-child{border-bottom:0;}
  .mobile-card-table td::before{content:attr(data-label);color:var(--muted);font-size:11.5px;font-weight:700;line-height:1.4;}
  .mobile-card-table td .btn-row{margin:0;}
  .mobile-card-table td .btn{min-height:40px;}
  .employee-profile-card{padding:12px;}
  .profile-field{padding:10px 11px;}

  .lockbar,.infobar{align-items:flex-start;padding:10px 11px;line-height:1.45;}
  .modal-overlay{align-items:flex-end;padding-top:env(safe-area-inset-top);}
  .modal{width:100%;max-width:100vw;max-height:92vh;border-radius:16px 16px 0 0;padding:20px 14px calc(18px + env(safe-area-inset-bottom));}
  .modal .form-row{grid-template-columns:1fr!important;}
  .toast{left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));text-align:center;}
  .audit-heading,.audit-pagination{align-items:stretch;flex-direction:column;}
  .audit-filters{grid-template-columns:1fr;}
  .audit-pagination .btn-row{width:100%;}
  .onboarding-heading{grid-template-columns:1fr;}
  .onboarding-filters{grid-template-columns:1fr;}
  .onboarding-filters .filter-button .btn{width:100%;min-height:44px;}
  .onboarding-pagination{justify-content:stretch;}
}

@media(prefers-reduced-motion:reduce){
  .tabs,.toast{transition:none;}
}