:root{--housing:#0e1319;--panel:#161d26;--panel-hi:#1d2732;--line:#26313d;--amber:#ffb300;--ink:#e8edf2;--muted:#7c8b9c;--up:#37d67a;--down:#ff5a4e;--num:'DIN Alternate','Oswald','Arial Narrow',Impact,'Haettenschweiler',sans-serif;--sans:ui-sans-serif,system-ui,-apple-system,'Segoe UI',Roboto,sans-serif}
*{box-sizing:border-box}
html,body{margin:0;background:var(--housing)}
body{min-width:0;color:var(--ink);font:15px var(--sans)}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer}
a{color:inherit}
button:disabled{opacity:.4;cursor:not-allowed}
[hidden]{display:none!important}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;z-index:100;padding:10px;color:var(--housing);background:var(--amber)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.label,.eyebrow{color:var(--muted);font-size:11px;letter-spacing:.04em}
.eyebrow{margin:0 0 5px}
.grow{flex:1}
.muted,.hint{color:var(--muted);font-size:11px}
.hint{line-height:1.5}
h2{font-size:16px;font-weight:600}
h3{font-size:14px}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.button,.mini-button,.header-link{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:9px 14px;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:4px;font-size:14px;text-align:center;text-decoration:none;font-weight:400}
.button.primary{background:var(--amber);border-color:var(--amber);color:var(--housing);font-weight:600}
.button:hover,.mini-button:hover,.header-link:hover{filter:brightness(1.12)}
.button.danger{background:var(--down);border-color:var(--down);color:white;font-weight:600}
.mini-button{padding:4px 10px;font-size:12px}
.mini-button.danger{color:var(--down)}
.link-button{border:0;background:transparent;color:var(--muted);font-size:11px;min-height:44px;padding:0 8px;text-decoration:underline}
select,input:not([type=checkbox]):not([type=range]){max-width:100%;min-height:44px;padding:6px 9px;background:var(--housing);border:1px solid var(--line);border-radius:4px}
/* V01: original centred, three-link landing composition. */
.home-shell{max-width:620px;margin:auto;padding:48px 20px}
.home-mark{font:600 44px/1 var(--num);letter-spacing:.01em;color:var(--amber);margin-bottom:6px}
.home-intro{margin:0 0 28px;color:var(--muted);font-size:11px;letter-spacing:.04em}
.home-card{display:block;padding:16px 18px;margin-bottom:10px;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:4px;text-decoration:none}
.home-card:hover{background:var(--panel-hi);border-color:var(--amber)}
.home-card b{display:block;font-size:17px;font-weight:600;margin-bottom:3px}
.home-card span{color:var(--muted);font-size:11px;letter-spacing:.04em}
.home-foot{margin-top:30px;color:var(--muted);font-size:11px;line-height:1.7}
/* Personal authentication and recovery remain separate from the original presentation. */
.terminal-shell{margin:auto;padding:12px;min-height:100vh}
.terminal-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.terminal-brand{font:600 20px/1 var(--num);letter-spacing:.01em;color:var(--amber);text-decoration:none}
.identity{display:flex;align-items:center;margin-left:auto;gap:4px;color:var(--muted);font-size:11px}
.auth-panel{width:min(390px,100%);margin:70px auto;padding:22px;background:var(--panel);border:1px solid var(--line);border-radius:4px}
.auth-panel h1{margin:0 0 8px;color:var(--amber);font:600 28px var(--num)}
.auth-panel p{line-height:1.6}
.field{display:grid;gap:4px;margin:10px 0;color:var(--muted);font-size:12px}
.field input,.field select{width:100%}
.field input[type=checkbox]{width:18px;height:18px}
.notice,.pending-card{margin:10px 0;padding:10px 13px;background:var(--panel-hi);border:1px solid var(--line);border-radius:4px}
.notice.error{color:#fff;background:#612b30;border-color:var(--down)}
.notice.warning,.pending-card{color:var(--amber);border-color:var(--amber)}
.notice.ok{color:var(--up);border-color:var(--up)}
.pending-card{display:flex;align-items:center;justify-content:space-between;gap:12px}
/* V02–V04: compact header, coloured tiles and the original receipt geometry. */
.cashier-meters{display:flex;align-items:center;gap:14px;padding:6px 12px;border:1px solid var(--line);border-radius:4px;background:var(--panel)}
.cashier-meters>div+div{border-left:1px solid var(--line);padding-left:14px}
.cashier-meters small{display:block;color:var(--muted);font-size:11px;letter-spacing:.04em}
.cashier-meters b{display:block;font:600 21px/1 var(--num);margin-top:2px}
.cashier-layout{display:grid;grid-template-columns:minmax(0,1.9fr) minmax(280px,1fr);gap:10px;align-items:start}
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(146px,1fr));gap:8px}
.product-button{display:flex;min-height:98px;padding:10px 12px;flex-direction:column;justify-content:space-between;text-align:left;background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--product-colour);border-radius:5px}
.product-button.selected{background:var(--panel-hi);border-color:var(--amber);border-left-color:var(--product-colour)}
.product-button:hover{background:var(--panel-hi)}
.product-name{display:flex;justify-content:space-between;gap:6px}
.product-name b{font-size:14px;font-weight:500}
.quantity-badge{color:var(--amber);font:600 15px/1 var(--num)}
.product-button strong{color:var(--amber);font:600 36px/1 var(--num)}
.product-button small{font-size:10px;color:var(--muted)}
.panel,.admin-card{min-width:0;background:var(--panel);border:1px solid var(--line);border-radius:4px}
.receipt-panel{position:sticky;top:12px;display:flex;min-height:430px;flex-direction:column}
.panel-title{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:11px 13px;border-bottom:1px solid var(--line)}
.panel-title h2{margin:0;font-size:15px}
.receipt-lines{flex:1;min-width:0;max-height:44vh;overflow:auto}
.receipt-lines>p{padding:30px 20px;text-align:center;line-height:1.7}
.receipt-line{display:flex;align-items:center;gap:8px;padding:0 12px}
.line-quantity{font:600 18px/1 var(--num);min-width:18px;text-align:center}
.line-description{flex:1;min-width:0}
.line-description b{font-size:14px;font-weight:400;overflow-wrap:anywhere}
.line-description small{display:block;color:var(--muted);font-size:10px;margin-top:3px}
.line-total{font:600 18px/1 var(--num);white-space:nowrap}
.remove-line{min-width:44px;min-height:44px;padding:0;border:0;background:transparent;color:var(--muted);font-size:21px}
.remove-line:hover{color:var(--down)}
.payment{padding:12px;border-top:1px solid var(--line)}
.receipt-total{display:flex;align-items:baseline;justify-content:space-between;gap:8px;margin-bottom:11px}
.receipt-total>span{font-size:11px;color:var(--muted)}
.receipt-total strong{font:600 46px/1 var(--num);color:var(--amber);white-space:nowrap}
.pay-actions{display:grid;grid-template-columns:1fr 1fr;gap:7px}
.pay-actions button{padding:15px;font-weight:600}
.payment .hint{margin:8px 0 0}
/* V05–V06: original two-column hierarchy, plain figures and genuine settings. */
.admin-shell{max-width:1180px;padding:16px}
.admin-shell .terminal-head{margin-bottom:14px}
.admin-shell .terminal-brand{font-size:24px}
.admin-shell .identity{margin-left:0}
.header-link{font-size:12px;padding:6px 10px}
.admin-nav{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.admin-nav button{min-height:44px;background:transparent;border:0;padding:0 2px;color:var(--muted);font-size:11px}
.admin-nav button[aria-selected=true]{color:var(--amber)}
.admin-columns{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:14px;align-items:start}
.admin-primary,.admin-side{display:grid;min-width:0;grid-template-columns:minmax(0,1fr);gap:14px}
.admin-primary>section,.admin-side>section{min-width:0;scroll-margin-top:12px}
.admin-card,#admin-products,#admin-report{padding:14px 16px;background:var(--panel);border:1px solid var(--line);border-radius:4px}
#admin-report>.admin-card{padding:0;border:0}
.admin-content h2{margin:0 0 12px;font-size:16px}
.inline-actions{display:flex;align-items:center;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.inline-actions h2{margin:0}
.inline-actions>.button,.inline-actions>.mini-button,.inline-actions>select{margin-left:auto}
.inline-actions select{font-size:11px}
.admin-grid{display:grid;gap:10px;grid-template-columns:minmax(0,1fr)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.table-wrap{min-width:0;max-width:100%;overflow:auto}
.data-table{width:100%;border-collapse:collapse;font-size:13px}
.data-table th,.data-table td{padding:7px 8px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.data-table th{font-size:11px;font-weight:500;letter-spacing:.04em;color:var(--muted)}
.data-table td:first-child b{font-weight:400}
.product-dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:7px;vertical-align:-1px}
.product-table td:not(:first-child):not(:nth-last-child(-n+2)){text-align:right;font:600 15px var(--num);font-variant-numeric:tabular-nums}
.product-table .current-price{color:var(--amber)}
.product-state{display:block;font-size:10px;color:var(--muted)}
.report-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:10px 0 14px}
.report-metrics small,.report-metrics b{display:block}
.report-metrics small{color:var(--muted);font-size:11px}
.report-metrics b{font:600 26px/1 var(--num);margin-top:2px}
.report-metrics>div:nth-child(n+4) b{color:#c87b3a}
.terminal-meters{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:12px 0}
.terminal-meters small{display:block;font-size:11px;color:var(--muted)}
.terminal-meters b{font:600 26px/1 var(--num)}
.control-actions{display:grid;gap:8px;margin:12px 0}
.admin-controls p{font-size:11px;color:var(--muted)}
.admin-controls>button{width:100%}
details{font-size:12px;color:var(--muted)}
summary{min-height:44px;display:flex;align-items:center;cursor:pointer}
summary::before{content:'▸';margin-right:6px}
details[open]>summary::before{content:'▾'}
.setting-row{margin-bottom:14px}
.setting-label{display:flex;justify-content:space-between;align-items:baseline;gap:8px;font-size:12px}
.setting-label output{color:var(--amber);font:600 16px/1 var(--num)}
.setting-inputs{display:grid;grid-template-columns:minmax(0,1fr) 74px;gap:12px;align-items:center}
.setting-inputs input[type=number]{width:74px;font-size:12px}
.setting-inputs input[type=range]{appearance:none;width:100%;height:44px;margin:0;background:transparent;cursor:pointer}
.setting-inputs input[type=range]::-webkit-slider-runnable-track{height:3px;border-radius:2px;background:var(--line)}
.setting-inputs input[type=range]::-webkit-slider-thumb{appearance:none;width:17px;height:17px;border-radius:50%;background:var(--amber);margin-top:-7px}
.setting-inputs input[type=range]::-moz-range-track{height:3px;background:var(--line)}
.setting-inputs input[type=range]::-moz-range-thumb{width:17px;height:17px;border:0;border-radius:50%;background:var(--amber)}
.other-settings{margin-bottom:8px}
/* Dialog guards, focus and payment confirmation are unchanged. */
.modal-backdrop{position:fixed;inset:0;z-index:10;display:grid;place-items:center;padding:14px;background:#000b}
.modal{width:min(500px,100%);max-height:90vh;overflow:auto;padding:18px;background:var(--panel);border:1px solid var(--line);border-radius:5px}
.modal h2{margin-top:0;color:var(--amber)}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:12px}
/* V07–V08: board cards, separated meters, chart area and fixed-price footer. */
.board{display:flex;min-height:100vh;margin:auto;padding:16px;flex-direction:column;gap:12px}
.board-header{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap}
.board-header .terminal-brand{display:block;font-size:38px}
.board-meters{display:flex;gap:10px;flex-wrap:wrap}
.board-meters>div{padding:8px 16px;min-width:112px;background:var(--panel);border:1px solid var(--line);border-radius:4px}
.board-meters small{display:block;color:var(--muted);font-size:11px;letter-spacing:.04em}
.board-meters b{display:block;font:600 30px/1 var(--num);margin-top:2px}
#board-target{color:#c87b3a}
.board-products{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:9px}
.board-product{min-width:0;padding:12px 14px;background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--product-colour);border-radius:4px;overflow:hidden}
.board-product>b{font-size:15px;font-weight:500}
.price-row{display:flex;align-items:baseline;margin:7px 0 9px;white-space:nowrap}
.board-price{font:600 52px/1 var(--num);color:var(--amber);font-variant-numeric:tabular-nums}
.price-delta{font:600 17px/1 var(--num);margin-left:9px;color:var(--muted)}
.price-delta.up{color:var(--up)}
.price-delta.down{color:var(--down)}
.bounds-unavailable{display:block;color:var(--muted);font-size:10px;min-height:22px}
.chart-card{display:flex;flex:1;flex-direction:column;min-height:260px;padding:12px 14px;background:var(--panel);border:1px solid var(--line);border-radius:4px}
.chart-card h2{font-size:15px;margin:0 0 6px}
.chart-unavailable{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:210px;color:var(--muted);font-size:12px;text-align:center}
.chart-unavailable p{margin:0 0 6px}
.chart-unavailable span{font-size:11px}
.board footer{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}
.board footer b{font-size:11px;font-weight:400;color:var(--muted)}
.connection{color:var(--up);font-size:11px}
.connection.stale{color:var(--amber)}
.board-qr{display:flex;align-items:center;gap:8px;font-size:11px}
.board-qr-image{width:52px;height:52px;padding:3px;background:white}
.board-qr-link{max-width:100px}
.crash-banner{padding:11px 16px;background:var(--down);color:white;border-radius:4px;font-size:19px;font-weight:700}
@media(max-width:900px){.admin-columns{grid-template-columns:1fr}
}
@media(max-width:860px){.cashier-layout{grid-template-columns:1fr}
.receipt-panel{position:static}
}
@media(max-width:600px){.board-products{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
.board-price{font-size:40px}
.board-header .terminal-brand{font-size:38px}
.cashier-head .identity{margin-left:0}
.cashier-meters{order:3}
.admin-shell .terminal-head{gap:6px}
.admin-shell .grow{display:none}
.admin-shell .identity{margin-left:auto}
.header-link{font-size:11px}
.report-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
.form-row{grid-template-columns:1fr}
.pending-card{align-items:flex-start;flex-direction:column}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}
}
/* Fixed presentation palette uses classes to preserve the strict no-inline-style CSP. */
.product-colour-0{--product-colour:#FFB300}
.product-colour-1{--product-colour:#37D67A}
.product-colour-2{--product-colour:#CE90ED}
.product-colour-3{--product-colour:#FF5A4E}
.product-colour-4{--product-colour:#49B9DB}
.product-colour-5{--product-colour:#C87B3A}
.product-colour-6{--product-colour:#7C8B9C}
.product-colour-7{--product-colour:#7C8B9C}
.product-dot{background:var(--product-colour)}
.product-table td{padding-top:2px;padding-bottom:2px}
.admin-nav{margin-top:12px}

#admin-settings button[type=submit]{width:100%;margin-top:4px}
.chart-heading{display:flex;align-items:center;justify-content:space-between;gap:8px}
.chart-heading select{font-size:11px}
#price-history{flex:1;min-width:0}
.price-history-chart{display:block;width:100%;height:230px}
.chart-grid{stroke:var(--line);stroke-width:1}
.chart-label{fill:var(--muted);font:11px var(--sans)}
.chart-legend{display:flex;gap:10px;flex-wrap:wrap;font-size:11px}
.chart-key::before{content:'';display:inline-block;width:9px;height:9px;margin-right:5px;border-radius:50%;background:var(--product-colour)}
.reduce-line{min-width:44px;min-height:44px;background:transparent;border:0;color:var(--muted);font-size:18px}
.receipt-line{gap:5px}
.cash-change{font:600 24px var(--num);color:var(--amber)}