:root{--bg:#07111f;--panel:#0d1b2e;--panel2:#12233a;--line:#233b5a;--text:#eff7ff;--muted:#8ea4ba;--pink:#ff195e;--blue:#1688ff;--cyan:#33d6ff;--yellow:#ffb000;--green:#20c875;--danger:#ff4a5f;--shadow:0 18px 55px rgba(0,0,0,.28);--r:18px}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial;color:var(--text);background:var(--bg)}body{background:radial-gradient(circle at 15% 0%,#10365c 0,transparent 28%),radial-gradient(circle at 100% 20%,#3e0f42 0,transparent 22%),#07111f}.tech-grid{position:fixed;inset:0;pointer-events:none;opacity:.23;background-image:linear-gradient(rgba(51,214,255,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(51,214,255,.14) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to bottom,#000,transparent 88%)}a{color:inherit;text-decoration:none}.app{display:grid;grid-template-columns:250px 1fr;min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;padding:22px 16px;border-right:1px solid var(--line);background:rgba(7,17,31,.9);backdrop-filter:blur(18px);z-index:5}.brand img{width:190px;max-height:80px;object-fit:contain;object-position:left center}.role{margin:12px 5px 22px;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.12em}.nav{display:grid;gap:7px}.nav a{padding:11px 12px;border-radius:12px;color:#c9d8e6;font-weight:650;font-size:14px}.nav a:hover,.nav a.active{background:linear-gradient(90deg,var(--pink),#a316ff);color:white;box-shadow:0 10px 25px rgba(255,25,94,.18)}.main{min-width:0}.topbar{height:76px;display:flex;align-items:center;justify-content:space-between;padding:0 28px;border-bottom:1px solid var(--line);background:rgba(8,20,35,.75);backdrop-filter:blur(16px);position:sticky;top:0;z-index:4}.topbar h1{font-size:20px;margin:0}.userbox{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:13px}.content{padding:26px}.grid{display:grid;gap:18px}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.card{background:linear-gradient(180deg,rgba(18,35,58,.92),rgba(11,25,43,.92));border:1px 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td{border-bottom:0}.form-grid{display:grid;gap:14px}.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}label{font-size:12px;color:#a8bed1;font-weight:700;display:grid;gap:7px}input,select,textarea{width:100%;background:#0a192b;border:1px solid #29425f;border-radius:10px;color:white;padding:11px 12px;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(51,214,255,.08)}textarea{min-height:80px;resize:vertical}.alert{padding:12px 14px;border-radius:11px;margin-bottom:14px}.alert.success{background:rgba(32,200,117,.13);border:1px solid rgba(32,200,117,.35)}.alert.error{background:rgba(255,74,95,.13);border:1px solid rgba(255,74,95,.35)}.login-body{display:grid;place-items:center;min-height:100vh;padding:20px}.login-card,.installer{width:min(480px,100%);position:relative;z-index:2;background:rgba(10,25,43,.88);border:1px solid rgba(85,176,255,.28);backdrop-filter:blur(18px);box-shadow:0 30px 90px rgba(0,0,0,.4);border-radius:26px;padding:34px}.installer{width:min(700px,100%)}.login-logo{display:block;width:260px;max-width:100%;margin:0 auto 18px}.login-card h1,.installer h1{text-align:center;margin:8px 0}.login-card p,.installer p{text-align:center;color:var(--muted);line-height:1.5}.pos-layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(330px,.75fr);gap:18px}.category-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}.tab{padding:8px 12px;border-radius:999px;background:#152a44;color:#aac0d3;border:1px solid #29415e;font-size:12px;cursor:pointer}.tab.active{background:var(--pink);border-color:var(--pink);color:white}.product-grid{display:grid;grid-template-columns:repeat(4,minmax(140px,1fr));gap:12px}.product{background:linear-gradient(160deg,#102541,#0b1c31);border:1px solid #29415e;border-radius:15px;padding:15px;min-height:140px;display:flex;flex-direction:column;justify-content:space-between;cursor:pointer;transition:.18s}.product:hover{transform:translateY(-2px);border-color:#5ab5ff;box-shadow:0 14px 30px rgba(0,0,0,.25)}.product .cat{font-size:10px;color:#7fa2c3;text-transform:uppercase}.product h3{font-size:14px;margin:7px 0}.price{font-size:20px;font-weight:900;color:#ff5b83}.cart{position:sticky;top:98px}.cart-items{display:grid;gap:10px;max-height:350px;overflow:auto}.cart-row{display:grid;grid-template-columns:1fr 64px 28px;gap:8px;align-items:center;padding:10px;border-radius:12px;background:#0a192b}.cart-row strong{display:block;font-size:13px}.cart-row small{color:var(--muted)}.qty{background:#132943;border:1px solid #29415e;border-radius:8px;padding:6px;width:60px}.totals{margin-top:14px;border-top:1px solid var(--line);padding-top:13px}.totals div{display:flex;justify-content:space-between;padding:5px 0}.totals .grand{font-size:20px;font-weight:900;border-top:1px dashed #39526c;margin-top:8px;padding-top:12px}.payment{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:14px 0}.payment label{display:block}.payment input{display:none}.payment span{display:block;text-align:center;padding:10px 6px;background:#122943;border:1px solid #29415e;border-radius:10px;cursor:pointer;color:#c5d5e3}.payment input:checked+span{background:var(--blue);border-color:var(--blue);color:white}.chart{height:230px}.badge{display:inline-block;padding:5px 8px;border-radius:999px;background:#17304d;color:#b9cfe0;font-size:11px}.receipt{width:80mm;max-width:100%;margin:0 auto;background:white;color:#111;padding:5mm;font-family:Arial,sans-serif}.receipt img{width:58mm;display:block;margin:auto}.receipt h2{text-align:center;margin:4px 0}.receipt .meta{font-size:11px;border-top:1px dashed #222;border-bottom:1px dashed #222;padding:7px 0;margin:8px 0}.receipt 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@media(max-width:1180px){.grid-4{grid-template-columns:repeat(2,1fr)}.product-grid{grid-template-columns:repeat(3,1fr)}.pos-layout{grid-template-columns:1fr}.cart{position:static}}@media(max-width:820px){.app{grid-template-columns:1fr}.sidebar{height:auto;position:relative}.brand img{width:170px}.nav{grid-template-columns:repeat(2,1fr)}.topbar{position:relative}.content{padding:16px}.grid-2,.grid-3,.grid-4,.form-row{grid-template-columns:1fr}.product-grid{grid-template-columns:repeat(2,1fr)}}
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