:root{
  --bg:#f5f6f8; --panel:#ffffff; --ink:#16181d; --muted:#63697a; --line:#e2e5ec;
  --brand:#8a2b06; --brand-soft:#fdf1ec; --accent:#1d4ed8;
  --ok:#0f7b46; --ok-bg:#e7f6ee; --warn:#9a6100; --warn-bg:#fdf3e0;
  --bad:#b3261e; --bad-bg:#fdecea; --info:#1d4ed8; --info-bg:#eaf0fe;
  --radius:10px; --shadow:0 1px 2px rgba(16,20,30,.06),0 4px 14px rgba(16,20,30,.05);
  /* Design tokens (frontend round-2 D1). Spacing is a scale, not a guess; a
     control is a tap target on a desk and on a phone; a dense screen (report,
     line grid) shrinks it deliberately, one class, in one place. */
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px;
  --control-h:44px;        /* desk / phone tap target */
  --control-h-dense:34px;  /* .dense screens: reports, grids */
  --topbar-h:52px;
  --z-topbar:20; --z-drawer:30; --z-modal:40; --z-toast:50;
}
@media (prefers-color-scheme: dark){
  :root{--bg:#12141a;--panel:#1a1d25;--ink:#e9ebf0;--muted:#9aa1b4;--line:#2b303c;
    --brand:#e0794f;--brand-soft:#2a1a13;--accent:#7ea2ff;
    --ok:#4ade80;--ok-bg:#122a1e;--warn:#f0b74a;--warn-bg:#2c2110;--bad:#f87171;--bad-bg:#2e1615;--info:#93b4ff;--info-bg:#161d33;}
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--ink);font:14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.layout{display:grid;grid-template-columns:248px 1fr;min-height:100vh}
.sidebar{background:var(--panel);border-right:1px solid var(--line);padding:14px 0 40px;position:sticky;top:0;height:100vh;overflow-y:auto}
.brand{display:flex;align-items:center;gap:9px;padding:6px 16px 14px;font-weight:700;font-size:15px;letter-spacing:-.2px}
.brand .dot{width:26px;height:26px;border-radius:8px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:13px}
.navgroup{padding:10px 16px 3px;font-size:10.5px;text-transform:uppercase;letter-spacing:.09em;color:var(--muted);font-weight:700}
.sidebar a.nav{display:flex;align-items:center;gap:9px;padding:6px 16px;color:var(--ink);font-size:13.2px;border-left:3px solid transparent}
.sidebar a.nav:hover{background:var(--brand-soft);text-decoration:none}
.sidebar a.nav.active{background:var(--brand-soft);border-left-color:var(--brand);font-weight:600}
.sidebar a.nav .ic{width:18px;text-align:center;flex:0 0 18px}
.sidebar details.navsub{margin:2px 0 4px}
.sidebar details.navsub>summary{cursor:pointer;list-style:none;padding:5px 16px 5px 28px;font-size:12px;color:var(--muted);font-weight:600}
.sidebar details.navsub>summary::before{content:'▸';display:inline-block;width:12px;margin-left:-14px;transition:transform .15s}
.sidebar details.navsub[open]>summary::before{transform:rotate(90deg)}
.sidebar details.navsub a.nav{padding-left:30px;font-size:12.6px}
.main{min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;gap:12px;padding:12px 22px;background:var(--panel);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:var(--z-topbar);flex-wrap:wrap;min-height:var(--topbar-h)}
.topbar h1{font-size:17px;margin:0;font-weight:650;letter-spacing:-.2px;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar .titlewrap{flex:1 1 260px;min-width:190px}
@media(max-width:1080px){.topbar .titlewrap{flex:1 1 100%}}
.content{padding:20px 22px 60px;max-width:1500px;width:100%}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:18px;overflow:hidden}
.card > h2{margin:0;padding:12px 16px;border-bottom:1px solid var(--line);font-size:13.5px;font-weight:650;display:flex;align-items:center;gap:8px}
.card > h2 .sub{font-weight:400;color:var(--muted);font-size:12px}
.card .body{padding:16px}
.card .body.tight{padding:0}
.grid{display:grid;gap:14px}
.g2{grid-template-columns:repeat(auto-fit,minmax(290px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(215px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(165px,1fr))}
.kpi{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:13px 15px;box-shadow:var(--shadow)}
.kpi .label{color:var(--muted);font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;font-weight:600}
.kpi .value{font-size:23px;font-weight:680;letter-spacing:-.5px;margin-top:4px}
.kpi .hint{color:var(--muted);font-size:11.5px;margin-top:2px}
table{width:100%;border-collapse:collapse;font-size:13px}
th{text-align:left;font-weight:640;color:var(--muted);font-size:11.5px;text-transform:uppercase;letter-spacing:.04em;padding:9px 12px;border-bottom:1px solid var(--line);white-space:nowrap;background:var(--panel);position:sticky;top:0}
td{padding:8px 12px;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:0}
tbody tr:hover{background:var(--brand-soft)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
/* Sticky headers that actually stick (D1). Two modes, chosen by table():
   'box'  — the wrapper is the scroll box, so `th{top:0}` sticks inside it;
   'page' — the page scrolls and the header sticks UNDER the topbar.
   Before this, `.tablewrap{overflow-x:auto}` was the scroll box and never
   scrolled vertically, so `th{position:sticky;top:0}` above never fired. */
.tablewrap{overflow:auto;max-height:calc(100vh - var(--topbar-h) - 120px)}
.tablewrap.page{overflow:visible;max-height:none}
.tablewrap.page th{top:var(--topbar-h)}
.tablewrap.short{max-height:none;overflow:visible}
@media(max-width:900px){
  .tablewrap.page{overflow-x:auto}
  .tablewrap.page th{position:static}
}
.badge{display:inline-block;padding:2px 8px;border-radius:20px;font-size:11px;font-weight:640;white-space:nowrap;background:var(--info-bg);color:var(--info)}
.badge.ok{background:var(--ok-bg);color:var(--ok)}
.badge.warn{background:var(--warn-bg);color:var(--warn)}
.badge.bad{background:var(--bad-bg);color:var(--bad)}
.badge.mute{background:var(--line);color:var(--muted)}
.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 13px;border-radius:8px;border:1px solid var(--line);background:var(--panel);color:var(--ink);font-size:13px;font-weight:560;cursor:pointer;line-height:1.2}
.btn:hover{background:var(--brand-soft);text-decoration:none}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{filter:brightness(1.08)}
.btn.danger{color:var(--bad);border-color:var(--bad)}
.btn.sm{padding:4px 9px;font-size:12px}
.toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:14px}
.toolbar .spacer{flex:1}
input,select,textarea{font:inherit;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:7px 10px;width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:-1px}
textarea{min-height:80px;resize:vertical}
label{display:block;font-size:12px;font-weight:620;color:var(--muted);margin-bottom:4px}
.field{margin-bottom:13px}
.field .help{font-size:11.5px;color:var(--muted);margin-top:3px}
.formgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:0 16px}
.field.full{grid-column:1/-1}
.fieldset{border:1px solid var(--line);border-radius:var(--radius);padding:14px;margin-bottom:16px}
.fieldset > legend{font-size:12px;font-weight:700;color:var(--brand);padding:0 6px;text-transform:uppercase;letter-spacing:.05em}
.muted{color:var(--muted)}
.small{font-size:12px}
.right{text-align:right}
.nowrap{white-space:nowrap}
.empty{padding:34px 16px;text-align:center;color:var(--muted)}
.empty .big{font-size:30px;display:block;margin-bottom:6px}
.pager{display:flex;gap:8px;align-items:center;padding:10px 14px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted)}
.flash{padding:10px 14px;border-radius:8px;margin-bottom:14px;font-size:13px;font-weight:550}
.flash.ok{background:var(--ok-bg);color:var(--ok)}
.flash.bad{background:var(--bad-bg);color:var(--bad)}
.flash.info{background:var(--info-bg);color:var(--info)}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:16px;overflow-x:auto}
.tabs a{padding:8px 13px;font-size:13px;color:var(--muted);border-bottom:2px solid transparent;white-space:nowrap}
.tabs a.active{color:var(--brand);border-bottom-color:var(--brand);font-weight:640}
.tabs a:hover{text-decoration:none;color:var(--ink)}
dl.props{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:11px 18px;margin:0}
dl.props dt{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:650}
dl.props dd{margin:1px 0 0;font-size:13.5px;word-break:break-word}
.searchbox{display:flex;gap:6px;align-items:center;flex:0 1 240px;min-width:150px}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{padding:3px 10px;border:1px solid var(--line);border-radius:20px;font-size:12px;color:var(--muted)}
.chip.on{background:var(--brand);border-color:var(--brand);color:#fff}
.chip:hover{text-decoration:none}
.bar{height:7px;border-radius:20px;background:var(--line);overflow:hidden}
.bar > i{display:block;height:100%;background:var(--brand)}
.helpbox{background:var(--info-bg);color:var(--info);padding:9px 13px;border-radius:8px;font-size:12.5px;margin-bottom:14px}
.login{max-width:390px;margin:8vh auto;padding:0 16px}
.login .card{padding:24px}
.crumbs{font-size:12px;color:var(--muted);margin-bottom:4px}
.crumbs a{color:var(--muted)}
.linegrid td{padding:4px 6px}
.linegrid input,.linegrid select{padding:5px 7px;font-size:12.5px}
.stack{display:flex;flex-direction:column;gap:2px}
.hstack{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.calendar{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}
.calendar .day{border:1px solid var(--line);border-radius:6px;padding:5px;min-height:66px;font-size:11.5px}
.calendar .day.today{border-color:var(--brand);box-shadow:0 0 0 1px var(--brand)}
.calendar .dow{font-weight:700;color:var(--muted);text-align:center;font-size:11px;padding:3px}
/* The phone (D1/D3). The sidebar becomes a drawer that slides over the page
   instead of a stack of two hundred links above it, and the topbar becomes one
   52 px row: ☰ · title · ⋯ — the page's own actions move into a bottom sheet
   and the search box into the drawer, so nothing is lost, only moved. */
@media(max-width:900px){
  .layout{grid-template-columns:1fr}
  .sidebar{position:fixed;top:0;left:-100%;bottom:0;width:280px;max-width:86vw;height:100vh;z-index:var(--z-drawer);
    border-right:1px solid var(--line);padding:8px 0 40px;transition:left .18s ease;box-shadow:var(--shadow)}
  .sidebar.open{left:0}
  .sidebar .brand{display:flex;align-items:center;justify-content:space-between;padding-right:12px}
  .scrim{display:none;position:fixed;inset:0;background:rgba(10,12,18,.45);z-index:calc(var(--z-drawer) - 1)}
  .scrim.on{display:block}
  .topbar{flex-wrap:nowrap;gap:var(--sp-2);padding:6px 12px}
  .topbar .titlewrap{flex:1 1 auto;min-width:0}
  .topbar .crumbs{display:none}
  .topbar > .searchbox{display:none}
  .sidebar .searchbox{display:flex;padding:4px 14px 10px}
  .topbar .actions{display:none}
  .topbar .navtoggle,.topbar .moretoggle{display:inline-block}
  .sheet{display:none;position:fixed;left:0;right:0;bottom:0;z-index:var(--z-modal);background:var(--panel);
    border-top:1px solid var(--line);border-radius:14px 14px 0 0;padding:var(--sp-4);box-shadow:var(--shadow)}
  .sheet.open{display:block}
  .sheet .actions{display:flex;flex-wrap:wrap;gap:var(--sp-2)}
  .content{padding:14px}
  th.p3,td.p3{display:none}
}
@media(max-width:600px){ th.p2,td.p2{display:none} }
.sheet{display:none}
.scrim{display:none}
.navtoggle,.moretoggle{display:none;background:none;border:1px solid var(--line);border-radius:6px;font-size:18px;padding:2px 9px;cursor:pointer;color:var(--ink)}
.brand .navtoggle{display:none}
@media print{.sidebar,.topbar,.toolbar,.btn,.drawer,.scrim,.sheet{display:none!important}.layout{display:block}.card{box-shadow:none}}

/* ============================================================================
   THE DESIGN SYSTEM — frontend round-2 §3(a) D1–D8.
   Everything below is the shared vocabulary every page draws from. A class used
   under src/ and not defined here is a bug the invariants suite fails on
   (scripts/steps/invariants/w1-ui.mjs), which is how the seven silently
   undefined classes below were found in the first place.
   ========================================================================= */

/* --- D1 · the classes that were used and never defined ------------------- */
.row{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:0 var(--sp-4)}
.row > .field.full{grid-column:1/-1}
table.table{width:100%;border-collapse:collapse;font-size:13px}
.check{display:flex;align-items:center;gap:var(--sp-2)}
.check input{width:auto;margin:0;min-height:0}
.linkbtn{background:none;border:0;padding:0;color:var(--accent);cursor:pointer;font:inherit;text-decoration:none;min-height:0}
.linkbtn:hover{text-decoration:underline}
/* Text tones. `.badge.bad` / `.flash.bad` keep their own backgrounds above;
   these are the plain-text colours the pages were already asking for. */
/* `.badge.bad` and `.flash.bad` above are two classes, so they keep their own
   background and colour by specificity; these single-class rules only tint text
   that asked for a tone and got nothing (the F13 finding). */
.ok{color:var(--ok)} .warn{color:var(--warn)} .bad{color:var(--bad)} .info{color:var(--info)}
.inlineform{display:inline}
@media print{.noprint{display:none!important}}
/* The slip vocabulary the POS receipt and the KOT share (contract frozen with
   W1-POS on day 1: .receipt-80, .hsn-summary, .kot). print.css carries the
   page geometry; these are the same names on screen. */
.r{text-align:right} .c{text-align:center} .head{display:flex;justify-content:space-between;align-items:flex-start;gap:var(--sp-5)}
.hsn-summary th{border-bottom:1px solid var(--line)}
.notice{border-radius:0;margin-bottom:0}
.msg{color:var(--bad);font-size:11.5px;margin-top:3px;font-weight:600}

/* --- D1 · controls are tap targets -------------------------------------- */
.btn{min-height:var(--control-h)}
input,select,textarea{min-height:var(--control-h)}
textarea{min-height:80px}
.btn.sm{min-height:0;padding:4px 9px;font-size:12px}
.dense .btn,.dense input,.dense select,.dense textarea{min-height:var(--control-h-dense)}
td .btn,th .btn,.linegrid .btn{min-height:var(--control-h-dense)}
.linegrid input,.linegrid select{min-height:var(--control-h-dense)}

/* --- D2 · the data table ------------------------------------------------- */
tr[data-href]{cursor:pointer}
tr[data-href]:focus{outline:2px solid var(--accent);outline-offset:-2px}
tfoot td,tfoot th{border-top:2px solid var(--line);font-weight:700;background:var(--panel)}
th a{color:inherit}
th a:after{content:'';display:inline-block;width:0}
th.sorted-asc a:after{content:' ▲'} th.sorted-desc a:after{content:' ▼'}

/* --- D3 · the side drawer (the ONE overlay; a direct child of <body>) ----- */
.drawer{position:fixed;top:0;right:0;bottom:0;width:520px;max-width:96vw;background:var(--panel);
  border-left:1px solid var(--line);box-shadow:var(--shadow);z-index:var(--z-drawer);display:flex;flex-direction:column}
.drawer[hidden]{display:none}
.drawer-head{display:flex;align-items:center;gap:var(--sp-3);padding:var(--sp-3) var(--sp-4);border-bottom:1px solid var(--line);font-weight:650}
.drawer-head b{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.drawer-body{flex:1;overflow:auto;padding:var(--sp-4)}

/* --- D5 · combobox against /lookup --------------------------------------- */
.combo{position:relative}
.combo-list{position:absolute;left:0;right:0;top:100%;z-index:var(--z-modal);margin:2px 0 0;padding:0;list-style:none;
  background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);max-height:280px;overflow:auto}
.combo-list[hidden]{display:none}
.combo-list li{padding:8px 11px;cursor:pointer;font-size:13px;border-bottom:1px solid var(--line)}
.combo-list li:last-child{border-bottom:0}
.combo-list li[aria-selected="true"],.combo-list li:hover{background:var(--brand-soft)}
.combo-list li .sub{display:block;color:var(--muted);font-size:11.5px}
.combo-add{display:inline-block;font-size:11.5px;margin-top:3px}

/* --- D6 · numeric keypad -------------------------------------------------- */
.keypad{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-2);max-width:340px}
.keypad button{min-height:var(--control-h);border:1px solid var(--line);border-radius:8px;background:var(--panel);
  color:var(--ink);font:inherit;font-size:16px;font-weight:600;cursor:pointer}
.keypad button:hover{background:var(--brand-soft)}
.keypad button[data-preset]{font-size:13px;font-weight:550}
.keypad button[data-exact]{grid-column:span 2;background:var(--brand);border-color:var(--brand);color:#fff}
kbd{font:inherit;font-size:10.5px;border:1px solid var(--line);border-radius:4px;padding:0 4px;margin-left:5px;color:var(--muted)}

/* --- D7 · line grid ------------------------------------------------------- */
.linegrid{width:100%;border-collapse:collapse}
.linegrid tr[data-template]{display:none}
.linegrid tfoot td{background:transparent}
.drcr{font-variant-numeric:tabular-nums;font-weight:600;padding:var(--sp-2) 0}
.drcr.off{color:var(--bad)} .drcr.on{color:var(--ok)}
button[data-needs-balance][disabled]{opacity:.5;cursor:not-allowed}

/* --- D8 · KOT ticket, map, stepper, legend, states ------------------------ */
.kot{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);padding:var(--sp-3);margin-bottom:var(--sp-3)}
.kot header{font-weight:650;font-size:12.5px;border-bottom:1px dashed var(--line);padding-bottom:var(--sp-1);margin-bottom:var(--sp-2)}
.kot ol{margin:0;padding-left:var(--sp-5);font-size:13px}
.kot ol i{color:var(--muted);font-style:normal;font-size:11.5px}
.kot footer{color:var(--muted);font-size:11.5px;margin-top:var(--sp-2)}
.kot[data-status="ready"]{border-color:var(--ok)} .kot[data-status="new"]{border-color:var(--warn)}
.kotboard{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:var(--sp-3)}

.map{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:var(--sp-2)}
.map .cell{display:flex;flex-direction:column;gap:2px;min-height:var(--control-h);padding:var(--sp-2) var(--sp-3);
  border:1px solid var(--line);border-left:4px solid var(--line);border-radius:8px;background:var(--panel);color:var(--ink);font-size:12px}
.map .cell:hover{background:var(--brand-soft);text-decoration:none}
.map .cell b{font-size:14px;font-weight:680}
.map .cell small{color:var(--muted);font-size:11px}
.map .cell.tone-ok{border-left-color:var(--ok);background:var(--ok-bg)}
.map .cell.tone-warn{border-left-color:var(--warn);background:var(--warn-bg)}
.map .cell.tone-bad{border-left-color:var(--bad);background:var(--bad-bg)}
.map .cell.tone-info{border-left-color:var(--info);background:var(--info-bg)}
.map .cell.tone-mute{border-left-color:var(--line)}
.map .cell.on{outline:2px solid var(--brand);outline-offset:-2px}
.map .cell input[type=checkbox]{position:absolute;opacity:0;width:0;height:0}

.stepper{display:flex;flex-wrap:wrap;gap:var(--sp-2);list-style:none;margin:0 0 var(--sp-4);padding:0;counter-reset:step}
.stepper li{counter-increment:step;padding:6px 13px 6px 10px;border:1px solid var(--line);border-radius:20px;
  font-size:12.5px;color:var(--muted);background:var(--panel)}
.stepper li:before{content:counter(step);display:inline-grid;place-items:center;width:18px;height:18px;margin-right:6px;
  border-radius:50%;background:var(--line);color:var(--muted);font-size:11px;font-weight:700;vertical-align:-4px}
.stepper li.done{color:var(--ok);border-color:var(--ok)}
.stepper li.done:before{background:var(--ok);color:#fff;content:'✓'}
.stepper li.now{color:var(--brand);border-color:var(--brand);font-weight:650;background:var(--brand-soft)}
.stepper li.now:before{background:var(--brand);color:#fff}
.stepper li.skipped:before{content:'—';background:var(--line);color:var(--muted)}
.stepper li a{color:inherit}

.legend{display:flex;flex-wrap:wrap;gap:var(--sp-3);list-style:none;margin:var(--sp-3) 0 0;padding:0;font-size:11.5px;color:var(--muted)}
.legend li{display:flex;align-items:center;gap:var(--sp-1)}
.legend .swatch{width:11px;height:11px;border-radius:3px;background:var(--line);display:inline-block}
.legend .swatch.ok{background:var(--ok)} .legend .swatch.warn{background:var(--warn)}
.legend .swatch.bad{background:var(--bad)} .legend .swatch.info{background:var(--info)}

.field.err input,.field.err select,.field.err textarea,.field.err .combo-q{border-color:var(--bad);outline-color:var(--bad)}
.field.err > label{color:var(--bad)}
.empty .btn{margin-top:var(--sp-3)}
.strip{padding:9px 16px;font-size:12.5px;font-weight:550}
.progress{display:flex;align-items:center;gap:var(--sp-2);font-size:12px;color:var(--muted)}
.progress .bar{flex:1;min-width:120px}

/* The signed-out shell. `.login` is the original; `.loginwrap` / `.loginbox`
   are what the account pages render, and they mean the same thing — one look
   for every page a person reaches before they are inside the application. */
.loginwrap{min-height:100vh;display:grid;place-items:center;padding:var(--sp-5) var(--sp-4);background:var(--bg)}
.loginbox{width:100%;max-width:420px}
.loginbox .card{margin-bottom:0}