:root{
  --ground:#eef1f5; --surface:#fff; --surface-2:#f5f7fa; --ink:#16202c; --muted:#5d6878; --line:#dce2e9;
  --accent:#1d5fbf; --accent-2:#e8f0fc; --accent-ink:#fff; --focus:#f0b400;
  --ok:#1b7f47; --warn:#b3261e; --warn-bg:#fbeae8; --caution-bg:#fff4df;
  --side:#10233f; --side-ink:#c9d6ea; --side-active:#1d5fbf;
  --radius:12px; --shadow:0 1px 2px rgba(16,30,50,.05),0 6px 18px rgba(16,30,50,.06);
  --f:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:Consolas,"Cascadia Mono",ui-monospace,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root{
    --ground:#0d1117; --surface:#151b23; --surface-2:#1b222c; --ink:#e4e8ee; --muted:#98a3b3; --line:#2a333f;
    --accent:#5b95f0; --accent-2:#1a2a44; --accent-ink:#0b1320; --warn:#f07469; --warn-bg:#2d1715; --caution-bg:#2c2211;
    --side:#0a1321; --side-ink:#aebbd0; --shadow:0 1px 2px rgba(0,0,0,.4),0 6px 18px rgba(0,0,0,.35); color-scheme:dark;
  }
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{background:var(--ground);color:var(--ink);font:14.5px/1.5 var(--f);-webkit-text-size-adjust:100%}
[hidden]{display:none!important}
h1,h2,h3{margin:0;font-weight:650}
:focus-visible{outline:2.5px solid var(--focus);outline-offset:2px}
label{display:block;font-size:12.5px;color:var(--muted);font-weight:600;margin:0 0 4px}
input,select,textarea{width:100%;min-width:0;font:14.5px var(--f);color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:9px;padding:8px 10px;height:38px}
textarea{height:auto}
input[type=checkbox]{width:18px;height:18px;padding:0;accent-color:var(--accent)}
input:focus,select:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:transparent}
input[readonly]{background:var(--surface-2)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:38px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font:600 14px var(--f);padding:0 14px;border-radius:9px;cursor:pointer;white-space:nowrap;text-decoration:none}
.btn:hover{border-color:var(--accent);color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.07);color:var(--accent-ink)}
.btn.ghost{border-color:transparent;background:transparent}
.btn.danger{color:var(--warn)}
.btn.small{height:30px;padding:0 10px;font-size:13px;border-radius:7px}
.btn.block{width:100%;margin-top:14px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn svg{flex:none}
.icon-btn{display:inline-grid;place-items:center;width:38px;height:38px;border:0;border-radius:9px;background:transparent;color:inherit;cursor:pointer}
.icon-btn:hover{background:var(--surface-2)}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);min-width:0}
.pad{padding:16px}

/* đăng nhập */
.login{min-height:100%;display:grid;place-items:center;padding:16px;background:linear-gradient(160deg,#1d5fbf 0,#10233f 55%,var(--ground) 55.1%)}
.login-card{width:min(400px,100%);padding:28px 24px}
.login-card label{margin-top:14px}
.brand{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.brand h1{font-size:20px;letter-spacing:.02em}
.brand p{margin:0;color:var(--muted);font-size:13px}
.logo{display:inline-grid;place-items:center;flex:none;width:40px;height:40px;border-radius:11px;background:var(--accent);color:#fff;font-weight:700;letter-spacing:.02em}
.err{color:var(--warn);min-height:1.4em;margin:10px 0 0;font-size:13.5px}

/* khung */
.shell{display:flex;min-height:100%}
.side{position:sticky;top:0;height:100vh;width:260px;flex:none;background:var(--side);color:var(--side-ink);display:flex;flex-direction:column}
.side-head{display:flex;align-items:center;gap:10px;padding:16px 16px 12px}
.side-brand{display:flex;flex-direction:column;min-width:0}
.side-brand b{color:#fff;font-size:15px;letter-spacing:.03em}
.side-brand small{font-size:11.5px;opacity:.75;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav{flex:1;overflow-y:auto;padding:6px 10px 24px;scrollbar-width:thin}
.nav a{display:flex;align-items:center;gap:8px;color:inherit;text-decoration:none;padding:7px 10px;border-radius:8px;font-size:13.8px;line-height:1.35}
.nav a:hover{background:rgba(255,255,255,.07);color:#fff}
.nav a[aria-current=page]{background:var(--side-active);color:#fff}
.nav a .off{margin-left:auto;font-size:10.5px;border:1px solid currentColor;border-radius:99px;padding:0 6px;opacity:.7}
.nav details{margin-top:6px}
.nav summary{list-style:none;cursor:pointer;font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;opacity:.65;padding:8px 10px 4px;display:flex;align-items:center;gap:6px}
.nav summary::-webkit-details-marker{display:none}
.nav summary::after{content:"";margin-left:auto;width:7px;height:7px;border-right:2px solid;border-bottom:2px solid;transform:rotate(45deg);transition:transform .15s}
.nav details:not([open]) summary::after{transform:rotate(-45deg)}
.nav .home{font-weight:600;margin-top:2px}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:10px;padding:10px 16px;padding-top:calc(10px + env(safe-area-inset-top,0px));background:var(--surface);border-bottom:1px solid var(--line)}
#menuBtn{display:none}
.page-title{font-size:17px;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.user-box{position:relative}
.user-btn{display:flex;align-items:center;gap:8px;border:0;background:none;color:inherit;font:600 13.5px var(--f);cursor:pointer;padding:4px 6px;border-radius:9px}
.user-btn:hover{background:var(--surface-2)}
.avatar{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--accent-2);color:var(--accent);font-weight:700}
.dropdown{position:absolute;right:0;top:calc(100% + 6px);min-width:240px;background:var(--surface);border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);padding:6px;z-index:40}
.dropdown button{display:block;width:100%;text-align:left;border:0;background:none;color:inherit;font:14px var(--f);padding:9px 10px;border-radius:7px;cursor:pointer}
.dropdown button:hover{background:var(--surface-2)}
.view{padding:16px;display:grid;gap:14px;align-content:start;max-width:1500px;width:100%;margin:0 auto;outline:none}
.scrim{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:45}
@media (max-width:900px){
  #menuBtn{display:inline-grid}
  .side{position:fixed;left:0;top:0;z-index:50;transform:translateX(-102%);transition:transform .2s;box-shadow:0 0 30px rgba(0,0,0,.3)}
  .side.open{transform:none}
  .user-name{display:none}
  .view{padding:12px}
}

/* thanh công cụ + bộ lọc */
.toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.toolbar .grow{flex:1}
.filters{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:12px;padding:14px 16px}
.filters .wide{grid-column:span 2}
@media (max-width:520px){.filters{grid-template-columns:1fr 1fr}.filters .wide{grid-column:1/-1}}
.filters-foot{display:flex;gap:8px;flex-wrap:wrap;align-items:center;padding:0 16px 14px}
.filters-foot .note{margin-right:auto}
.note{color:var(--muted);font-size:13px;margin:0}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{display:inline-flex;gap:4px;align-items:center;background:var(--accent-2);color:var(--accent);border-radius:99px;padding:2px 10px;font-size:12.5px;font-weight:600}

/* bảng */
.grid-card{overflow:hidden}
.grid-head{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:10px 12px;border-bottom:1px solid var(--line)}
.grid-head .search{flex:1 1 200px;max-width:320px}
.grid-head .count{color:var(--muted);font-size:13px;margin-left:auto}
.table-wrap{overflow:auto;max-height:calc(100vh - 260px);min-height:120px}
table.grid{border-collapse:separate;border-spacing:0;width:100%;font-size:13.5px}
.grid th,.grid td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.grid th{position:sticky;top:0;z-index:2;background:var(--surface-2);font-size:12.5px;color:var(--muted);font-weight:650;white-space:nowrap;cursor:pointer;user-select:none}
.grid th[aria-sort=ascending]::after{content:" ▲";font-size:10px}
.grid th[aria-sort=descending]::after{content:" ▼";font-size:10px}
.grid td.n,.grid th.n{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.grid td.d{white-space:nowrap}
.grid td.c,.grid th.c{text-align:center}
.grid tbody tr:hover td{background:var(--accent-2)}
.grid tbody tr.click{cursor:pointer}
.grid tfoot td{position:sticky;bottom:0;background:var(--surface-2);font-weight:700;border-top:2px solid var(--line)}
.grid tr.group td{background:var(--surface);color:var(--accent);font-weight:700;border-bottom:1px solid var(--line);position:sticky;top:34px;z-index:1}
.grid tr.subtotal td{font-weight:650;background:var(--surface-2)}
.grid td.w{min-width:190px}
.grid td .multi{white-space:pre-line;min-width:220px;display:block}
.pill{display:inline-block;padding:2px 9px;border-radius:99px;font-size:12px;font-weight:650;white-space:nowrap;color:#1b1b1b}
.pager{display:flex;align-items:center;gap:8px;justify-content:flex-end;padding:8px 12px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);flex-wrap:wrap}
.pager select{width:auto;height:30px;padding:0 6px}
.empty{padding:28px 16px;text-align:center;color:var(--muted)}
.warnbox{background:var(--caution-bg);border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:13.5px}
.errbox{background:var(--warn-bg);color:var(--warn);border-radius:10px;padding:10px 12px;font-size:13.5px}

/* thẻ trên điện thoại cho màn hình danh sách */
.cards{display:none}
@media (max-width:700px){
  .list-page .table-wrap{display:none}
  .list-page .cards{display:grid;gap:10px;padding:10px}
}
.rcard{border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:var(--surface);cursor:pointer}
.rcard:active{background:var(--accent-2)}
.rcard .top{display:flex;justify-content:space-between;gap:8px;align-items:center;margin-bottom:4px}
.rcard .top b{font-family:var(--mono);font-size:13.5px}
.rcard dl{display:grid;grid-template-columns:auto 1fr;gap:2px 10px;margin:0;font-size:13px}
.rcard dt{color:var(--muted)}
.rcard dd{margin:0;white-space:pre-line;overflow-wrap:anywhere}
.cards .sum{font-weight:700;padding:4px 2px}

/* phiếu */
.form-view{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px 16px;padding:16px}
.form-view .f{min-width:0}
.form-view .v{border:1px solid var(--line);background:var(--surface-2);border-radius:9px;padding:7px 10px;min-height:38px;overflow-wrap:anywhere;white-space:pre-line}
.form-view .v.n{text-align:right;font-variant-numeric:tabular-nums}
.sec-title{font-size:14.5px;padding:12px 16px 0}
#map{height:420px;border-radius:0 0 var(--radius) var(--radius)}

/* trang chủ */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px}
.kpi{padding:14px 16px}
.kpi span{display:block;color:var(--muted);font-size:12.5px;font-weight:600}
.kpi b{display:block;font-size:22px;font-variant-numeric:tabular-nums;margin-top:2px}
.charts{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:14px}
@media (max-width:980px){.charts{grid-template-columns:1fr}}
.chart{padding:14px 16px}
.chart h2{font-size:15px;margin-bottom:10px}
.chart svg{width:100%;height:auto;display:block}
.chart .axis{fill:var(--muted);font-size:11px}
.chart .val{fill:var(--ink);font-size:11px;font-weight:600}
.chart .bar{fill:var(--accent)}
.chart .bar.last{fill:#f08c2e}
.chart .gridline{stroke:var(--line)}
.hbar{display:grid;grid-template-columns:minmax(90px,38%) 1fr auto;gap:6px 10px;align-items:center;font-size:13px}
.hbar .t{height:12px;border-radius:6px;background:var(--accent)}
.hbar .nm{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hbar .am{font-variant-numeric:tabular-nums;text-align:right;color:var(--muted)}

/* hộp thoại */
.dlg{border:0;border-radius:14px;padding:0;width:min(520px,calc(100% - 24px));background:var(--surface);color:var(--ink);box-shadow:0 20px 60px rgba(0,0,0,.35)}
.dlg::backdrop{background:rgba(10,16,26,.45)}
.dlg form{padding:18px 18px 16px;display:grid;gap:12px}
.dlg h2{font-size:17px}
.dlg .row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.dlg .actions{display:flex;justify-content:flex-end;gap:8px;margin-top:4px}
.check{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink);font-weight:500;margin:0}
.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:var(--surface);padding:10px 16px;border-radius:10px;font-size:14px;z-index:100;max-width:calc(100% - 32px);box-shadow:var(--shadow)}
.toast.err{background:var(--warn);color:#fff}
.busy{display:flex;align-items:center;gap:10px;color:var(--muted);padding:24px 16px}
.spin{width:18px;height:18px;border:2.5px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:sp .8s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.spin{animation:none}.side{transition:none}}
@media print{.side,.topbar,.toolbar,.filters-foot,.grid-head,.pager{display:none!important}.table-wrap{max-height:none;overflow:visible}.card{box-shadow:none}}

/* form nhập đơn */
.order-head .wide2{grid-column:span 2}
@media (max-width:560px){.order-head .wide2{grid-column:auto}}
.order-lines{max-height:none}
.grid.edit td{padding:4px 4px;vertical-align:middle}
.grid.edit th{padding:8px 4px}
.grid.edit tbody tr:hover td{background:transparent}
.grid.edit input{height:34px;padding:4px 8px;min-width:70px;border-radius:7px}
.grid.edit td.n input{text-align:right;width:72px;min-width:56px}
.grid.edit td.item input{min-width:100px;width:110px}
.grid.edit input.ctkm{width:70px;min-width:60px}
.grid.edit td.act{width:36px;text-align:center}
.x{border:0;background:none;color:var(--muted);cursor:pointer;font-size:20px;padding:2px 8px;border-radius:6px}
.x:hover{color:var(--warn);background:var(--warn-bg)}
.errbox ul,.warnbox ul{margin:6px 0 0;padding-left:20px}
@media (max-width:700px){
  .order-lines thead{display:none}
  .order-lines table,.order-lines tbody,.order-lines tfoot{display:block}
  .order-lines tbody tr{display:grid;grid-template-columns:1fr 1fr;gap:6px 10px;padding:10px 12px;border-bottom:1px solid var(--line);position:relative}
  .order-lines tbody td{display:block;border:0;padding:0}
  .order-lines tbody td[data-label]::before{content:attr(data-label);display:block;font-size:11.5px;color:var(--muted);font-weight:600}
  .order-lines tbody td.item,.order-lines tbody td.name{grid-column:1/-1}
  .order-lines .grid.edit tbody td.item input{width:calc(100% - 40px)}
  .order-lines tbody td.n{text-align:left}
  .order-lines .grid.edit tbody td.n input,.order-lines .grid.edit input.ctkm{width:100%;text-align:right}
  .order-lines .grid.edit tbody tr:hover td{background:transparent}
  .order-lines tfoot td:empty{display:none}
  .order-lines tbody td.act{position:absolute;right:8px;top:14px;width:auto}
  .order-lines tfoot tr{display:flex;flex-wrap:wrap;gap:4px 12px;padding:8px 12px}
  .order-lines tfoot td{border:0;padding:0;position:static}
  .order-lines tbody td.empty{grid-column:1/-1}
}