:root{--coral:#ff5a36;--coral-dark:#e0441f;--sun:#ffd23f;--ink:#1d1d27;--muted:#6b6f7b;--line:#e7e3df;--bg:#fffaf6;--card:#fff;--ok:#1f9d55;--warn:#b7791f;--bad:#d64545;--radius:14px;color:var(--ink);background:var(--bg);-webkit-tap-highlight-color:transparent;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{background:var(--bg);min-height:100vh;margin:0}button,input,select,textarea{font:inherit;color:inherit}a{color:var(--coral-dark)}h1,h2,h3{margin:0 0 12px;line-height:1.2}h1{font-size:24px}h2{font-size:19px}h3{font-size:16px}p{margin:0 0 10px}.brand{letter-spacing:3px;color:var(--coral);align-items:center;gap:10px;font-size:20px;font-weight:800;display:flex}.brand img{width:30px;height:30px}.topbar{z-index:5;border-bottom:1px solid var(--line);background:#fff;flex-wrap:wrap;align-items:center;gap:4px 12px;padding:10px 16px;display:flex;position:sticky;top:0}.topbar .spacer{flex:1}.page{max-width:1040px;margin:0 auto;padding:16px}.narrow{max-width:420px;margin:40px auto;padding:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:14px;padding:16px}.row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.grow{flex:1}.grid2{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;display:grid}.muted{color:var(--muted)}.small{font-size:13px}.center{text-align:center}.mono{font-family:ui-monospace,Cascadia Mono,Consolas,monospace}.btn{background:var(--coral);color:#fff;cursor:pointer;border:0;border-radius:12px;min-height:44px;padding:11px 18px;font-weight:700}.btn:hover{background:var(--coral-dark)}.btn:disabled{opacity:.5;cursor:default}.btn.secondary{color:var(--ink);border:1px solid var(--line);background:#fff}.btn.ghost{color:var(--coral-dark);background:0 0;min-height:0;padding:8px 10px}.btn.danger{background:var(--bad)}.btn.big{width:100%;min-height:64px;padding:18px 24px;font-size:20px}label.field{margin-bottom:12px;display:block}label.field>span{color:var(--muted);margin-bottom:4px;font-size:13px;font-weight:600;display:block}input[type=text],input[type=email],input[type=password],input[type=number],input[type=datetime-local],select,textarea{border:1px solid var(--line);background:#fff;border-radius:10px;width:100%;min-height:44px;padding:11px 12px}input:focus,select:focus,textarea:focus{outline:2px solid var(--sun);border-color:var(--coral)}.check{align-items:flex-start;gap:10px;margin-bottom:12px;display:flex}.check input{width:22px;height:22px;accent-color:var(--coral);margin-top:2px}.tabs{border-bottom:1px solid var(--line);gap:4px;margin-bottom:14px;display:flex;overflow-x:auto}.tabs button{color:var(--muted);cursor:pointer;white-space:nowrap;background:0 0;border:0;border-bottom:3px solid #0000;padding:10px 14px;font-weight:600}.tabs button.on{color:var(--coral-dark);border-bottom-color:var(--coral)}table{border-collapse:collapse;width:100%;font-size:14px}th{text-align:left;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);border-bottom:1px solid var(--line);padding:8px 6px;font-size:12px}td{border-bottom:1px solid var(--line);vertical-align:top;padding:9px 6px}.pill{color:var(--muted);background:#f1ede9;border-radius:999px;padding:2px 10px;font-size:12px;font-weight:700;display:inline-block}.pill.live{color:var(--ok);background:#e3f6ea}.pill.warn{color:var(--warn);background:#fdf3dc}.pill.bad{color:var(--bad);background:#fde7e7}.pill.sun{color:#7a5b00;background:#fff4c7}.alert{border-radius:12px;margin-bottom:12px;padding:12px 14px;font-weight:600}.alert.bad{color:#8d1f1f;background:#fde7e7}.alert.ok{color:#13643a;background:#e3f6ea}.alert.warn{color:#7a5200;background:#fdf3dc}.kpi{font-size:26px;font-weight:800}.kpi-label{color:var(--muted);text-transform:uppercase;letter-spacing:.5px;font-size:12px}.device{flex-direction:column;min-height:100vh;display:flex}.device-main{flex:1;width:100%;max-width:720px;margin:0 auto;padding:14px}.conn{align-items:center;gap:6px;font-size:13px;font-weight:700;display:inline-flex}.conn:before{content:"";background:var(--ok);border-radius:50%;width:10px;height:10px}.conn.off{color:var(--bad)}.conn.off:before{background:var(--bad)}.offline-bar{background:var(--bad);color:#fff;text-align:center;padding:10px 14px;font-weight:700}.offline-screen{z-index:50;background:var(--bg);text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:6px;padding:24px;display:flex;position:fixed;inset:0}.offline-screen .icon{margin:18px 0 6px;font-size:64px}.offline-screen h1{font-size:26px}.offline-screen p{max-width:420px}.tap-zone{border:3px dashed var(--coral);text-align:center;background:#fff;border-radius:22px;margin:12px 0;padding:34px 16px}.tap-zone .icon{font-size:54px;line-height:1}.tap-zone.badge{border-color:var(--sun);background:#fffbea}.tap-zone h2{margin-top:8px}.amount{text-align:center;margin:6px 0;font-size:40px;font-weight:800}.keypad{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.keypad button{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:12px;min-height:58px;font-size:24px;font-weight:700}.keypad button:active{background:#fff4c7}.quick{flex-wrap:wrap;gap:8px;margin:8px 0;display:flex}.quick button{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:10px;flex:1;min-width:70px;min-height:44px;font-weight:700}.products{grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:10px;display:grid}.product{border:1px solid var(--line);cursor:pointer;text-align:left;background:#fff;border-radius:14px;min-height:86px;padding:14px 10px;position:relative}.product b{font-size:16px;display:block}.product .price{color:var(--coral-dark);font-weight:800}.product .qty{background:var(--coral);color:#fff;border-radius:999px;padding:1px 8px;font-weight:800;position:absolute;top:6px;right:8px}.cart{border-top:1px solid var(--line);background:#fff;padding:12px 14px;position:sticky;bottom:56px}.result{text-align:center;padding:24px 12px}.result .big{color:var(--ok);font-size:44px;font-weight:800}.result.bad .big{color:var(--bad)}.nav-bottom{border-top:1px solid var(--line);z-index:6;padding-bottom:env(safe-area-inset-bottom);background:#fff;display:flex;position:fixed;bottom:0;left:0;right:0}.device-main{padding-bottom:80px}.nav-bottom button{color:var(--muted);cursor:pointer;background:0 0;border:0;flex:1;padding:12px 4px;font-size:13px;font-weight:700}.nav-bottom button.on{color:var(--coral-dark);box-shadow:inset 0 3px 0 var(--coral)}.sim{border:1px dashed var(--line);border-radius:10px;margin-top:14px;padding:10px}.form h2{margin-bottom:4px}.form-section{border-top:1px solid var(--line);padding:14px 0 4px}.form-section:first-of-type{border-top:0}.form-section h3{text-transform:uppercase;letter-spacing:.8px;color:var(--coral-dark);margin-bottom:10px;font-size:13px}.grid-2-1{grid-template-columns:2fr 1fr;gap:12px;display:grid}.grid-3{grid-template-columns:repeat(3,1fr);align-items:start;gap:12px;display:grid}.hint{color:var(--muted);margin:-4px 0 10px;font-size:13px}.suffix{position:relative}.suffix input{padding-right:44px}.suffix span{color:var(--muted);font-size:13px;font-weight:700;position:absolute;top:50%;right:12px;transform:translateY(-50%)}.info-tile{background:#fff4c7;border-radius:12px;flex-direction:column;gap:2px;margin-top:21px;padding:10px 12px;font-size:13px;display:flex}.info-tile b{font-size:15px}.toggle{text-align:left;border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:12px;align-items:flex-start;gap:12px;width:100%;margin-bottom:10px;padding:12px 14px;display:flex}.toggle.on{border-color:var(--coral);background:#fff8f5}.toggle b{display:block}.toggle small{color:var(--muted);margin-top:2px;font-size:13px;display:block}.switch{background:#d9d4cf;border-radius:999px;flex:none;width:40px;height:24px;margin-top:2px;transition:background .15s;position:relative}.switch:after{content:"";background:#fff;border-radius:50%;width:18px;height:18px;transition:left .15s;position:absolute;top:3px;left:3px;box-shadow:0 1px 2px #0003}.toggle.on .switch{background:var(--coral)}.toggle.on .switch:after{left:19px}.saved-note{color:var(--ok);align-self:center;margin-right:auto;font-weight:700}.form-actions{border-top:1px solid var(--line);justify-content:flex-end;gap:10px;margin-top:4px;padding-top:14px;display:flex}@media (max-width:720px){.grid-2-1,.grid-3{grid-template-columns:1fr}.info-tile{margin-top:0}}.about-step{border-top:1px solid var(--line);padding:10px 0 2px}.about-step:first-of-type{border-top:0}.about-step h3{color:var(--coral-dark);margin-bottom:6px}.about-step ul{margin:0 0 8px;padding-left:20px}.about-step li{margin-bottom:4px}.about-faq{border-top:1px solid var(--line);padding:10px 0}.about-faq summary{cursor:pointer;font-weight:700}.about-faq p{color:var(--muted);margin:8px 0 0}.about-dev{text-align:center}.about-dev .brand{justify-content:center;margin-bottom:10px}@media (max-width:600px){.page{padding:10px}.hide-sm{display:none}}.device-about{z-index:40;background:var(--bg);position:fixed;inset:0;overflow-y:auto}.device-about .device-main{padding-bottom:24px}.about-step p{margin:0 0 8px}.help-btn{border-radius:50%;width:36px;height:36px;min-height:0;padding:0;font-weight:800}