:root{
  --bg:#ECEFF2; --paper:#FFFFFF; --ink:#1E2A36; --muted:#5E6B78; --line:#CFD7DF; --line2:#E3E8ED;
  --kraft:#A26B34; --kraft-soft:#F4E9DC; --teal:#2A7C82; --teal-soft:#DDEFF0;
  --focus:#2F5FD0; --bad:#B3261E; --good:#2E7D32;
  --num:"IBM Plex Sans","Noto Sans TC",system-ui,sans-serif;
  font-family:"Noto Sans TC","Microsoft JhengHei","PingFang TC",system-ui,sans-serif;
  color:var(--ink); background:var(--bg);
}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;font-size:15px;line-height:1.5}
[hidden]{display:none!important}
h1,h2{margin:0;font-weight:700}
h2{font-size:17px;margin-bottom:10px}
.muted{color:var(--muted);font-size:13px;margin:4px 0 12px}
.err{color:var(--bad);min-height:1.2em;margin:8px 0 0;font-size:14px}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px}

/* brand mark：三條代表五層/三層/二層的楞線 */
.brand-mark{display:inline-flex;flex-direction:column;gap:3px;width:26px}
.brand-mark span{height:4px;border-radius:2px;background:var(--kraft)}
.brand-mark span:nth-child(2){width:78%;background:#C08B55}
.brand-mark span:nth-child(3){width:56%;background:var(--teal)}

.btn{font:inherit;font-size:14px;border:1px solid var(--line);background:var(--paper);color:var(--ink);
  padding:6px 12px;border-radius:6px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:4px;white-space:nowrap}
.btn:hover{border-color:#9AA8B5}
.btn.primary{background:var(--ink);border-color:var(--ink);color:#fff}
.btn.primary:hover{background:#34475A}
.btn.ghost{background:transparent;border-color:transparent;color:#DCE3EA}
.btn.ghost:hover{color:#fff;border-color:#55687A}
.btn.sm{padding:3px 8px;font-size:13px}
.btn.icon{width:34px;justify-content:center;font-size:20px;line-height:1;padding:3px 0}
.btn:disabled{opacity:.45;cursor:not-allowed}
input,select,textarea{font:inherit;font-size:14px;border:1px solid var(--line);border-radius:6px;padding:6px 8px;background:#fff;color:var(--ink)}

/* login */
.login{min-height:100vh;display:grid;place-items:center;padding:20px}
.login-box{background:var(--paper);padding:32px 28px;border-radius:10px;width:min(360px,100%);
  border-top:6px solid var(--kraft);box-shadow:0 1px 0 var(--line)}
.login-box h1{font-size:24px;margin-top:14px}
.login-box label{display:block;font-size:13px;color:var(--muted);margin-top:12px}
.login-box input{display:block;width:100%;margin-top:4px;padding:9px 10px;font-size:16px}
.login-box .btn{width:100%;justify-content:center;margin-top:20px;padding:10px}

/* top bar */
.topbar{background:var(--ink);color:#fff;display:flex;align-items:center;gap:24px;padding:0 20px;min-height:54px;flex-wrap:wrap;position:sticky;top:0;z-index:5}
.brand{display:flex;align-items:center;gap:10px;font-size:17px}
.tabs{display:flex;gap:2px;flex:1}
.tabs button{white-space:nowrap;font:inherit;font-size:14px;background:none;border:0;color:#AEBBC7;padding:16px 14px 13px;cursor:pointer;border-bottom:3px solid transparent}
.tabs button:hover{color:#fff}
.tabs button.on{color:#fff;border-bottom-color:#C08B55}
.who{display:flex;align-items:center;gap:8px;font-size:14px;color:#DCE3EA}

main{padding:18px 20px 40px;max-width:1500px;margin:0 auto}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.picker{display:flex;align-items:center;gap:6px}
.picker input,.picker select{font-size:16px;font-weight:500;padding:5px 8px}
.actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.actions .edit-only{display:inline-flex;gap:6px}
.hint{color:var(--muted);font-size:13px;margin:10px 2px}

.split{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:16px;align-items:start}
@media (max-width:1000px){.split{grid-template-columns:1fr}}

/* data grid */
.grid-wrap{overflow:auto;background:var(--paper);border:1px solid var(--line);border-radius:8px;max-height:calc(100vh - 170px)}
.grid-wrap.small{max-height:220px;margin-top:10px}
.grid{border-collapse:separate;border-spacing:0;width:100%;font-size:14px}
.grid th,.grid td{border-bottom:1px solid var(--line2);border-right:1px solid var(--line2);padding:0;white-space:nowrap}
.grid thead th{position:sticky;top:0;z-index:2;background:#F6F8FA;font-weight:500;font-size:13px;padding:8px 8px 6px;text-align:right;border-bottom:1px solid var(--line)}
.grid thead th.gA{box-shadow:inset 0 3px 0 var(--kraft)}
.grid thead th.gB{box-shadow:inset 0 3px 0 var(--teal)}
.grid thead th:first-child,.grid td:first-child{position:sticky;left:0;z-index:1;background:#F6F8FA;text-align:left}
.grid thead th:first-child{z-index:3}
.grid td.date{padding:0 10px;font-family:var(--num);font-size:13px;min-width:92px}
.grid td.date small{color:var(--muted);margin-left:4px;font-family:inherit}
.grid td.date.sat small,.grid td.date.sun small{color:var(--bad)}
.grid td.num{text-align:right;padding:6px 8px;font-family:var(--num);font-variant-numeric:tabular-nums}
.grid td.tot{background:#F9FAFB;font-weight:600}
.grid td.cell input{width:100%;min-width:76px;border:0;border-radius:0;background:transparent;text-align:right;
  font-family:var(--num);font-variant-numeric:tabular-nums;padding:7px 8px}
.grid td.cell input:focus{background:#FFF8E6;outline:2px solid var(--focus);outline-offset:-2px}
.grid td.cell input.zero{color:#B7C0C9}
.grid tr.saving td.date{box-shadow:inset 3px 0 0 #E0A92E}
.grid tr.saved td.date{box-shadow:inset 3px 0 0 var(--good)}
.grid tr.failed td.date{box-shadow:inset 3px 0 0 var(--bad)}
.grid tfoot td{position:sticky;bottom:0;background:#EEF2F5;font-weight:700;border-top:2px solid var(--ink)}
.grid tfoot td:first-child{z-index:2;padding:8px 10px}
.grid td.act{text-align:center;padding:0 4px}
.grid td.act button{border:0;background:none;color:#98A4AF;cursor:pointer;font-size:15px;padding:4px}
.grid td.act button:hover{color:var(--bad)}
.grid.readonly td.num{padding:8px 10px}
.grid td.up{color:var(--good)} .grid td.down{color:var(--bad)}
.grid .empty{padding:40px 20px;text-align:center;color:var(--muted);white-space:normal}

/* 右側統計 */
.summary{background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:14px 16px;position:sticky;top:70px}
.summary h3{font-size:14px;margin:14px 0 6px;display:flex;justify-content:space-between;align-items:baseline}
.summary h3:first-child{margin-top:0}
.summary h3 .grp-tag{font-size:12px;font-weight:500;padding:1px 8px;border-radius:10px}
.summary .A .grp-tag{background:var(--kraft-soft);color:var(--kraft)}
.summary .B .grp-tag{background:var(--teal-soft);color:var(--teal)}
.summary .line{display:grid;grid-template-columns:1fr auto 52px;gap:8px;font-size:13px;padding:3px 0;align-items:center;position:relative}
.summary .line .bar{position:absolute;left:0;bottom:0;height:2px;border-radius:1px}
.summary .A .bar{background:var(--kraft)} .summary .B .bar{background:var(--teal)}
.summary .line span:nth-child(2),.summary .line span:nth-child(3){text-align:right;font-family:var(--num);font-variant-numeric:tabular-nums}
.summary .line span:nth-child(3){color:var(--muted)}
.summary .sub{border-top:1px solid var(--line);margin-top:4px;padding-top:5px;font-weight:600}
.summary .grand{border-top:2px solid var(--ink);margin-top:14px;padding-top:10px}
.summary .grand .big{font-family:var(--num);font-size:26px;font-weight:600;letter-spacing:.2px;line-height:1.2}
.summary .grand .meta{font-size:13px;color:var(--muted);display:flex;justify-content:space-between;margin-top:4px}

/* charts */
.chart{background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:12px 14px 6px;margin-bottom:16px}
.chart svg{display:block;width:100%;height:auto}
.chart .legend{display:flex;gap:16px;font-size:13px;color:var(--muted);margin-bottom:4px}
.chart .legend i{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:5px;vertical-align:-1px}

/* settings */
.panels{display:grid;grid-template-columns:repeat(auto-fill,minmax(420px,1fr));gap:16px}
@media (max-width:520px){.panels{grid-template-columns:1fr}}
.panel{background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:16px 18px}
.panel label{display:block;font-size:13px;color:var(--muted);margin-bottom:10px}
.panel label input{display:block;width:100%;margin-top:3px}
.panel label.chk{display:inline-flex;gap:4px;align-items:center;margin:0;color:var(--ink)}
.panel label.chk input{width:auto;margin:0}
table.plain{width:100%;border-collapse:collapse;font-size:13px;margin-bottom:12px}
table.plain th,table.plain td{border-bottom:1px solid var(--line2);padding:5px 4px;text-align:left}
table.plain th{color:var(--muted);font-weight:500}
table.plain input[type=text],table.plain input:not([type]),table.plain input[type=number],table.plain select{width:100%;padding:3px 6px}
.inline-form{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.inline-form input:not([type=checkbox]){width:110px}
.row-gap{display:flex;gap:8px;flex-wrap:wrap}
.row-gap.end{justify-content:flex-end;margin-top:12px}

dialog{border:0;border-radius:10px;padding:0;width:min(860px,94vw)}
dialog::backdrop{background:rgba(30,42,54,.45)}
.dlg{padding:20px 22px}
.dlg textarea{width:100%;font-family:var(--num);font-size:13px}

#toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:9px 16px;border-radius:6px;font-size:14px;opacity:0;pointer-events:none;transition:opacity .2s}
#toast.show{opacity:1}
#toast.bad{background:var(--bad)}

body.viewer .edit-only{display:none!important}
body:not(.admin) .admin-only{display:none!important}

@media (max-width:700px){
  .topbar{gap:8px;padding:0 12px}
  .tabs{order:3;flex:1 0 100%;overflow-x:auto}
  .tabs button{padding:10px 10px}
  main{padding:12px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* 密碼顯示切換 */
.pw-wrap{position:relative;display:block;margin-top:4px}
.panel label .pw-wrap input,.login-box .pw-wrap input{margin-top:0;padding-right:40px;width:100%}
.pw-wrap input{padding-right:40px}
.eye{position:absolute;right:4px;top:50%;transform:translateY(-50%);width:32px;height:30px;border:0;background:none;cursor:pointer;border-radius:4px;
  background-repeat:no-repeat;background-position:center;background-size:20px;opacity:.6;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231E2A36' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M1 12s4-7 11-7 11 7 11 7-4 7-11 7S1 12 1 12z'/%3E%3Ccircle cx='12' cy='12' r='3'/%3E%3C/svg%3E")}
.eye:hover{opacity:1}
.eye.on{opacity:1;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23A26B34' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M17.94 17.94A10.07 10.07 0 0 1 12 19c-7 0-11-7-11-7a18.45 18.45 0 0 1 5.06-5.94M9.9 4.24A9.12 9.12 0 0 1 12 4c7 0 11 7 11 7a18.5 18.5 0 0 1-2.16 3.19M1 1l22 22'/%3E%3Cpath d='M14.12 14.12a3 3 0 1 1-4.24-4.24'/%3E%3C/svg%3E")}
/* 帳號管理 */
.user-form{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px 12px;align-items:end}
.user-form label{margin:0}
.user-form select{display:block;width:100%;margin-top:4px}
.user-form .btn{justify-content:center;height:36px}
table.users td{vertical-align:middle}
table.users input.name{min-width:110px}
table.users .pw-wrap{margin:0;min-width:150px}
table.users tr.off td{color:#98A4AF}
table.users .tag{font-size:12px;padding:1px 8px;border-radius:10px;background:#EEF2F5;color:var(--muted)}

/* 單位切換 */
.unit-switch{display:inline-flex;border:1px solid #55687A;border-radius:6px;overflow:hidden}
.unit-switch button{font:inherit;font-size:13px;background:none;border:0;color:#AEBBC7;padding:4px 10px;cursor:pointer}
.unit-switch button+button{border-left:1px solid #55687A}
.unit-switch button.on{background:#C08B55;color:#fff}

.view-error{background:#FDECEA;color:var(--bad);border:1px solid #F5C2BE;border-radius:8px;padding:12px 14px;margin-bottom:14px;font-size:14px}

/* 匯入報表 */
dialog.wide{width:min(1200px,96vw)}
.file-pick{cursor:pointer;margin:4px 0 12px}
.imp-file{border:1px solid var(--line);border-radius:8px;padding:12px 14px;margin-top:12px}
.imp-file h3{font-size:15px;margin:0 0 6px}
.imp-meta{font-size:13px;color:var(--muted);margin-bottom:8px}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.chip{font-size:12px;padding:2px 9px;border-radius:10px;background:#E7F3E8;color:var(--good);font-family:var(--num)}
.chip.bad{background:#FDECEA;color:var(--bad)}
.chip.warn{background:#FFF4DB;color:#8A5A00}
.imp-table td,.imp-table th{white-space:nowrap}
.imp-table td.st{font-size:12px;padding:0 8px}
.st-new{color:var(--good)} .st-same{color:var(--muted)} .st-hasdata{color:#8A5A00} .st-reimport{color:var(--focus)} .st-nodate{color:var(--bad)}
.imp-table input[type=date]{border:0;background:transparent;font-family:var(--num);font-size:13px;padding:6px}
.imp-table tr.skip td{opacity:.5}
.imp-table td.ck{text-align:center;padding:0 6px}
.loading{padding:20px;color:var(--muted)}