*{box-sizing:border-box}body{margin:0;font-family:Arial;background:#f4f6f8;color:#172033}.layout{display:grid;grid-template-columns:220px 1fr;min-height:100vh}aside{background:#102a43;color:#fff;padding:18px}aside img{width:90px;height:90px;border-radius:50%;object-fit:cover;display:block;margin:auto}aside h2{text-align:center}aside a{display:block;color:#fff;text-decoration:none;padding:10px;border-radius:7px}aside a:hover{background:#0f4c81}main{min-width:0}header{background:#fff;padding:18px 22px;border-bottom:1px solid #ddd}section{padding:20px}.card,.stats>div{background:#fff;border-radius:12px;padding:16px;margin-bottom:16px;box-shadow:0 2px 8px #0001}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.stats span{color:#64748b;font-size:13px}.stats b{display:block;font-size:22px;margin-top:7px}.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}input,select,textarea,button{padding:10px;border:1px solid #cbd5e1;border-radius:7px;width:100%}button{background:#0f4c81;color:#fff;border:0}table{width:100%;border-collapse:collapse;margin-top:12px}th,td{padding:9px;border-bottom:1px solid #e5e7eb;text-align:left}.msg{background:#dcfce7;padding:10px;margin-bottom:14px}.login{min-height:100vh;display:grid;place-items:center;background:#102a43}.loginbox{width:360px;background:#fff;padding:25px;border-radius:14px;text-align:center}.loginbox img{width:130px;height:130px;border-radius:50%;object-fit:cover}.loginbox input{margin:5px 0}.receipt{width:80mm;margin:auto;background:#fff;padding:5mm}.receipt img{display:block;width:70px;height:70px;border-radius:50%;object-fit:cover;margin:auto}.receipt h2,.receipt p{text-align:center}.printbar{width:80mm;margin:15px auto;display:flex;justify-content:space-between}@media(max-width:800px){.layout{grid-template-columns:1fr}.stats,.grid{grid-template-columns:1fr}aside a{display:inline-block}}@media print{.printbar{display:none}.receipt{margin:0;padding:2mm}}