/* SwiftBill Product System — calm, precise, operational */
:root{
  --ink:#17191f;--ink-soft:#343842;--muted:#68707d;--subtle:#8a919d;
  --brand:#4f46e5;--brand-hover:#4338ca;--brand-soft:#eef2ff;
  --good:#067647;--good-soft:#ecfdf3;--bad:#b42318;--bad-soft:#fff1f0;
  --warning:#b54708;--line:#e4e7ec;--line-strong:#d0d5dd;
  --canvas:#f6f7f9;--surface:#fff;--surface-soft:#f9fafb;
  --shadow-sm:0 1px 2px rgba(16,24,40,.04),0 1px 3px rgba(16,24,40,.05);
  --shadow-md:0 12px 32px rgba(16,24,40,.08);--shadow-lg:0 24px 64px rgba(16,24,40,.14)
}
*{box-sizing:border-box}
html{background:var(--canvas);color-scheme:light}
body{min-height:100vh;background:var(--canvas);color:var(--ink);font:15px/1.5 Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
body:before,body:after{display:none!important}
button,input,select{font:inherit}
button,input,select,a{-webkit-tap-highlight-color:transparent}
button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid rgba(79,70,229,.22);outline-offset:2px}

/* App frame */
.shell{max-width:1440px;margin:0 auto;padding:24px 30px 64px}
.top{display:flex;align-items:center;justify-content:space-between;min-height:68px;margin:0 0 12px;padding:10px 12px 10px 16px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.94);box-shadow:var(--shadow-sm);color:var(--ink);backdrop-filter:blur(18px)}
.brand-block{display:flex;align-items:center;gap:14px}.brand-block small{padding-left:14px;border-left:1px solid var(--line);color:var(--muted);font-size:12px;font-weight:600;letter-spacing:0;text-transform:none}
.brand{display:flex;align-items:center;color:var(--ink);font-size:22px;font-weight:760;letter-spacing:-.7px}
.brand i{color:var(--brand);font-style:normal;background:none;-webkit-text-fill-color:initial}
.brand:before{content:"S";display:grid;place-items:center;width:38px;height:38px;margin-right:10px;border:0;border-radius:11px;color:#fff;background:linear-gradient(145deg,#5b55ea,#4338ca);font-size:18px;font-weight:800;letter-spacing:0;box-shadow:0 6px 14px rgba(79,70,229,.22)}
.top .actions{display:flex;align-items:center;gap:8px}.db-state{display:flex;align-items:center;gap:8px;padding:8px 11px;border:1px solid #d1fadf;border-radius:999px;background:var(--good-soft);color:var(--good);font-size:12px;font-weight:650;letter-spacing:0}.db-state>span{width:7px;height:7px;border-radius:50%;background:#12b76a;box-shadow:none}.signout{border:1px solid var(--line);background:#fff;color:var(--ink-soft)}.signout:hover{border-color:var(--line-strong);background:var(--surface-soft)}

/* Navigation */
.nav{position:relative;z-index:3;display:flex;gap:3px;width:max-content;max-width:100%;margin:0 0 22px;padding:4px;border:1px solid var(--line);border-radius:13px;background:rgba(255,255,255,.94);box-shadow:var(--shadow-sm);overflow:auto;scrollbar-width:thin}
.nav button,.nav a{position:relative;display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:9px 14px;border-radius:9px;background:transparent;color:#5f6672;font-size:13px;font-weight:650;white-space:nowrap;text-decoration:none;transition:background .16s ease,color .16s ease,box-shadow .16s ease}
.nav button:hover,.nav a:hover{background:#f2f4f7;color:var(--ink)}
.nav button.active{background:var(--brand-soft);color:var(--brand-hover);box-shadow:none}
.nav button.active:after{display:none}

/* Typography and surfaces */
.page{display:grid;gap:18px;animation:page-in .22s ease-out}
@keyframes page-in{from{opacity:.25;transform:translateY(4px)}to{opacity:1;transform:none}}
.card{position:relative;overflow:hidden;padding:24px;border:1px solid var(--line);border-radius:18px;background:var(--surface);box-shadow:var(--shadow-sm);backdrop-filter:none}
.card:before,.card:after{display:none!important}.card>*{position:relative;z-index:1}
.section-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:20px}
.eyebrow{color:var(--brand);font-size:12px;font-weight:750;letter-spacing:.075em;text-transform:uppercase}
.card h1{margin:5px 0 7px;color:var(--ink);font-size:32px;line-height:1.15;letter-spacing:-1px;font-weight:720}
.card h2{margin:5px 0 7px;color:var(--ink);font-size:23px;line-height:1.2;letter-spacing:-.55px;font-weight:700}
.sub{color:var(--muted);font-size:15px;line-height:1.55}
.desk-badge{display:flex;align-items:center;gap:7px;flex:none;padding:7px 10px;border:1px solid #d1fadf;border-radius:999px;background:var(--good-soft);color:var(--good);font-size:11px;font-weight:700;letter-spacing:.02em;text-transform:none}.desk-badge span{width:7px;height:7px;border-radius:50%;background:#12b76a;box-shadow:none}

/* Controls */
label{gap:7px;color:var(--ink-soft);font-size:13px;font-weight:650;letter-spacing:0}
input,select{height:48px;border:1px solid var(--line-strong);border-radius:10px;padding:11px 13px;background:#fff;color:var(--ink);box-shadow:0 1px 2px rgba(16,24,40,.03);transition:border-color .16s ease,box-shadow .16s ease}
input::placeholder{color:#98a2b3}input:hover,select:hover{border-color:#98a2b3}input:focus,select:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(79,70,229,.1);outline:0}input[readonly]{background:#f2f4f7;color:#667085;cursor:default}
button{font-weight:650;transition:background .15s ease,border-color .15s ease,color .15s ease,box-shadow .15s ease,transform .12s ease}button:active:not(:disabled){transform:translateY(1px)}button:disabled{cursor:not-allowed;opacity:.48;filter:none}.big{min-height:48px;padding:11px 17px;border-radius:10px}.small{padding:8px 11px;border-radius:9px}
button.primary{border:1px solid var(--brand);background:var(--brand);color:#fff;box-shadow:0 2px 5px rgba(79,70,229,.2)}button.primary:before{display:none}button.primary:hover{border-color:var(--brand-hover);background:var(--brand-hover);box-shadow:0 5px 14px rgba(79,70,229,.22);filter:none;transform:none}
button.secondary{border:1px solid var(--line);background:#fff;color:var(--ink-soft)}button.secondary:hover{border-color:var(--line-strong);background:#f9fafb;color:var(--ink);transform:none}
button.danger{border:1px solid #fecdca;background:var(--bad-soft);color:var(--bad)}button.danger:hover{background:#fee4e2}
.actions{gap:9px}.scan-row{gap:9px}.barcode-btn{width:auto;min-width:144px;height:48px;border:1px solid #c7d7fe!important;border-radius:10px;background:#eef4ff!important;color:#3448a3!important;box-shadow:none!important}.barcode-btn:hover{border-color:#a4bcfd!important;background:#e0eaff!important;box-shadow:none!important}.scan-glyph{color:var(--brand);font-size:18px;text-shadow:none}
.price-box{margin:16px 0;padding:14px 16px;border:1px solid #d9d6fe;border-radius:12px;background:#f7f6ff;box-shadow:none;color:var(--ink);font-size:18px}.price-box span{margin-bottom:3px;color:var(--muted);font-size:11px;font-weight:700;letter-spacing:.05em}

/* Sales */
.sales-grid{grid-template-columns:minmax(0,1.48fr) minmax(340px,.72fr);gap:18px}.sales-grid>.card:first-child{min-height:510px;box-shadow:var(--shadow-sm)}.sales-grid>.card:last-child,.sale-entry,.checkout-card{background:#fff!important}
#lookup{margin:8px 0 2px;padding:6px;border:1px solid var(--line);border-radius:13px;background:#f9fafb;box-shadow:none}#lookup input{border-color:transparent;background:#fff}
.line-list{gap:9px}.sale-line{grid-template-columns:1fr auto 38px;min-height:66px;padding:11px 12px;border:1px solid var(--line);border-left:3px solid #818cf8;border-radius:11px;background:#fff;box-shadow:none;transition:border-color .15s ease,background .15s ease}.sale-line:nth-child(n){border-left-color:#818cf8}.sale-line:hover{border-color:#c7d7fe;background:#fafaff;box-shadow:none;transform:none}.sale-line strong{font-size:15px}.sale-line small{margin-top:2px;color:var(--muted)}
.total{margin-top:20px;padding:17px 0 0;border:0;border-top:1px solid var(--line);border-radius:0;background:none;font-size:22px;letter-spacing:-.4px}.complete-button{display:flex;align-items:center;justify-content:space-between;width:100%;margin-top:16px;padding-inline:17px}.complete-button>span{font-size:19px}
.empty{padding:42px 12px;border:1px dashed var(--line-strong);border-radius:12px;background:#fafafa;color:var(--muted)}.sales-grid .empty:before{display:none}.empty b{color:var(--ink-soft);font-size:14px}.empty span{margin-top:4px;font-size:13px}.sale-ready{margin-top:38px}

/* Metrics, tables and records */
.stats{gap:12px}.stat{position:relative;overflow:hidden;min-height:116px;padding:19px;border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:none}.stat:after{display:none}.stat span{color:var(--muted);font-size:12px;font-weight:650;letter-spacing:.02em;text-transform:none}.stat b{margin-top:7px;color:var(--ink);font-size:27px;letter-spacing:-.8px;font-weight:720}
.table-wrap{margin-top:15px;border:1px solid var(--line);border-radius:12px;background:#fff;overflow:auto}.table{width:100%;border-collapse:separate;border-spacing:0}.table th{padding:12px 13px;background:#f9fafb;color:#667085;font-size:11px;font-weight:700;letter-spacing:.055em;text-transform:uppercase}.table th:first-child{border-radius:11px 0 0 0}.table th:last-child{border-radius:0 11px 0 0}.table td{padding:13px;border-bottom:1px solid #eaecf0;color:var(--ink-soft)}.table tr:last-child td{border-bottom:0}.table tr:hover td{background:#fafbff}.table tfoot th{border-top:1px solid var(--line);background:#f5f7ff;color:var(--ink)}
.badge{padding:4px 8px;border-radius:999px;background:var(--good-soft);color:var(--good)}.badge.low{background:#fff4e5;color:var(--warning)}
.toolbar{align-items:center}.toolbar .actions{display:flex;flex-wrap:wrap}.accounts-hero{background:linear-gradient(145deg,#fff 0%,#fafaff 100%)}
.notice{position:sticky;top:8px;z-index:5;margin-bottom:13px;border:1px solid var(--line);border-radius:11px;box-shadow:var(--shadow-md);backdrop-filter:blur(12px)}.notice.success{border-color:#abefc6;background:#ecfdf3;color:#05603a}.notice.error{border-color:#fecdca;background:#fff1f0;color:#912018}

/* Scanner and modal */
.modal{background:rgba(17,24,39,.58);backdrop-filter:blur(8px)}.modal-card{width:min(560px,100%);max-height:min(90vh,760px);padding:24px;border:1px solid rgba(255,255,255,.7);border-radius:18px;background:#fff;box-shadow:var(--shadow-lg)}.modal-top{margin-bottom:14px}.modal-top h2{font-size:24px;letter-spacing:-.5px}.history{border-left-color:#c7d7fe}
.scanner-status{display:inline-flex;align-items:center;gap:7px;margin:4px 0 12px;padding:7px 10px;border:1px solid #d1fadf;border-radius:999px;background:var(--good-soft);color:var(--good);font-size:11px;font-weight:700;letter-spacing:.03em;text-transform:none}.scanner-status span{width:7px;height:7px;border-radius:50%;background:#12b76a;box-shadow:none}#barcode-reader{min-height:220px;overflow:hidden;border:1px solid var(--line)!important;border-radius:13px;background:#111827}#barcode-reader video{width:100%!important;border-radius:12px}.scan-file-button{width:100%;margin-top:12px}

/* Authentication — the product's opening page */
.auth-shell{position:relative;min-height:100vh;display:grid;grid-template-columns:minmax(420px,1.08fr) minmax(420px,.92fr);gap:clamp(40px,7vw,110px);align-items:center;padding:clamp(28px,5vw,72px);overflow:hidden;background:#111318}
.auth-shell:before{content:"";display:block!important;position:absolute;inset:0;pointer-events:none;background:radial-gradient(circle at 18% 78%,rgba(79,70,229,.28),transparent 32rem),radial-gradient(circle at 90% 5%,rgba(70,92,229,.12),transparent 28rem)}
.auth-intro{position:relative;z-index:1;max-width:680px;color:#fff}.auth-kicker{display:inline-flex;padding:7px 10px;border:1px solid rgba(255,255,255,.14);border-radius:999px;background:rgba(255,255,255,.05);color:#d0d5dd;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.auth-intro h2{margin:26px 0 19px;font-size:clamp(44px,5.2vw,76px);line-height:.98;letter-spacing:-3.8px;font-weight:700}.auth-intro h2 em{color:#a5b4fc;font-style:normal;background:none;-webkit-text-fill-color:initial}.auth-intro>p{max-width:600px;color:#aeb4bf;font-size:17px;line-height:1.65}.auth-proof{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;max-width:570px;margin-top:34px}.auth-proof>div{padding:15px;border:1px solid rgba(255,255,255,.09);border-radius:12px;background:rgba(255,255,255,.04);backdrop-filter:none}.auth-proof b,.auth-proof span{display:block}.auth-proof b{color:#fff;font-size:15px}.auth-proof span{margin-top:4px;color:#8f96a3;font-size:12px}.auth-orbit{display:none}
.auth-card{position:relative;z-index:2;width:min(480px,100%);justify-self:end;padding:clamp(28px,4vw,44px);border:1px solid #eaecf0;border-radius:20px;background:#fff;box-shadow:0 32px 80px rgba(0,0,0,.3);backdrop-filter:none}.auth-card:before{display:none}.auth-status{position:absolute;right:26px;top:27px;display:flex;align-items:center;gap:7px;color:#667085;font-size:11px;font-weight:650;text-transform:none;letter-spacing:0}.auth-status span{width:7px;height:7px;border-radius:50%;background:#12b76a;box-shadow:none}
.auth-logo{display:flex;align-items:center;margin-bottom:40px;color:var(--ink);font-size:27px;font-weight:760;letter-spacing:-1px}.auth-logo:before{content:"S";display:grid;place-items:center;width:42px;height:42px;margin-right:10px;border-radius:12px;color:#fff;background:linear-gradient(145deg,#5b55ea,#4338ca);font-size:19px;box-shadow:0 7px 16px rgba(79,70,229,.24)}.auth-logo i{color:var(--brand);font-style:normal}.auth-card h1{margin:6px 0 8px;color:var(--ink);font-size:32px;letter-spacing:-1px;font-weight:720}.auth-card form{display:grid;gap:16px;margin-top:25px}.auth-card form button{display:flex;align-items:center;justify-content:space-between;padding-inline:17px}.auth-error{margin-top:16px;padding:12px 14px;border:1px solid #fecdca;border-radius:10px;color:#912018;background:#fff1f0;font-weight:650}.auth-footnote{display:flex;align-items:center;justify-content:center;gap:7px;margin:21px 0 0;color:#7b8491;font-size:12px}.auth-footnote span{color:#12b76a;font-size:9px}

@media(max-width:960px){.auth-shell{grid-template-columns:1fr;padding:28px}.auth-intro{display:none}.auth-card{justify-self:center}.sales-grid{grid-template-columns:1fr}.shell{padding:18px 16px 44px}.brand-block small{display:none}}
@media(max-width:780px){.top{min-height:62px;padding:10px;border-radius:14px}.brand{font-size:21px}.brand:before{width:36px;height:36px;border-radius:10px}.db-state{padding:7px 9px;font-size:11px}.nav{position:sticky;top:7px;width:auto;margin:0 0 16px;border-radius:12px}.nav button,.nav a{padding:9px 12px}.card{padding:19px;border-radius:15px}.card h1{font-size:28px}.form-grid{grid-template-columns:1fr 1fr}.form-grid .actions{grid-column:1/-1}.actions{flex-wrap:wrap}.actions .big{flex:1}.stats{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.shell{padding:10px 10px 30px}.top{margin-bottom:9px}.top .actions{gap:5px}.db-state{font-size:0}.db-state:after{content:"Live";font-size:10px}.signout{font-size:11px}.card{padding:16px}.card h1{font-size:26px}.form-grid,.stats{grid-template-columns:1fr}#lookup.scan-row{display:flex;flex-wrap:wrap}#lookup.scan-row input{flex:1 1 100%}#lookup .barcode-btn,#lookup .primary.big{flex:1;min-width:0;padding-inline:11px}.sale-line{font-size:13px}.auth-shell{padding:12px;background:#111318}.auth-card{padding:25px 20px;border-radius:16px}.auth-status{right:18px;top:22px;font-size:10px}.auth-logo{margin-bottom:34px;font-size:24px}.auth-logo:before{width:38px;height:38px}.auth-card h1{font-size:29px}.toolbar .actions{width:100%}.toolbar .actions button{flex:1}.section-head{flex-direction:column}.modal{padding:10px}.modal-card{padding:20px;border-radius:15px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}