*{box-sizing:border-box}body{margin:0;font-family:system-ui,Segoe UI,Arial,sans-serif;background:#f4f6f8;color:#1c2733;font-size:15px}
a{color:#0b6bcb;text-decoration:none}
.top{background:#12355b;color:#fff;display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;padding:10px 18px}
.brand{font-weight:700;font-size:17px}.top nav{display:flex;flex-wrap:wrap;gap:4px;flex:1}
.top nav a{color:#cfe0f5;padding:6px 10px;border-radius:6px}.top nav a.on,.top nav a:hover{background:#1f4f84;color:#fff}
.who{font-size:13px}.who a{color:#ffd37a}
main{max-width:1200px;margin:0 auto;padding:18px}h1{margin:6px 0 16px;font-size:22px}
.card{background:#fff;border-radius:10px;padding:16px;box-shadow:0 1px 3px rgba(0,0,0,.08);margin-bottom:16px}
.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.stat .n{font-size:24px;font-weight:700;margin-top:4px}.stat .l{color:#5b6b7b;font-size:13px}
table{width:100%;border-collapse:collapse;background:#fff}th,td{padding:8px 10px;border-bottom:1px solid #e6ebf0;text-align:left}
th{background:#eef2f6;font-size:13px;position:sticky;top:0}td.r,th.r{text-align:right}tr.cat td{background:#dfe9f4;font-weight:700}
tr.low td{background:#fff4e0}tr.out td{background:#fde8e8}tfoot td{font-weight:700;background:#eef2f6}
.scroll{overflow-x:auto}
input,select,textarea{padding:8px;border:1px solid #c5d0db;border-radius:6px;font:inherit;max-width:100%}
label{display:block;font-size:13px;color:#4a5b6b;margin:8px 0 3px}
.btn,button{background:#0b6bcb;color:#fff;border:0;padding:9px 16px;border-radius:6px;cursor:pointer;font:inherit;display:inline-block}
.btn.gray,button.gray{background:#6b7a89}.btn.red,button.red{background:#c63a3a}.btn.green,button.green{background:#1f8a4c}.btn.sm,button.sm{padding:4px 10px;font-size:13px}
.flash{padding:10px 14px;border-radius:6px;margin-bottom:14px}.flash.ok{background:#e3f6ea;color:#14633a}.flash.err{background:#fde8e8;color:#9b2222}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-end}.badge{background:#fde8e8;color:#9b2222;padding:2px 8px;border-radius:10px;font-size:12px}
.pos{display:grid;grid-template-columns:1.3fr 1fr;gap:16px}@media(max-width:850px){.pos{grid-template-columns:1fr}}
.plist{max-height:62vh;overflow:auto}.plist .item{display:flex;justify-content:space-between;padding:9px 10px;border-bottom:1px solid #e6ebf0;cursor:pointer}
.plist .item:hover{background:#eef6ff}.plist .item small{color:#6b7a89}
.cart input{width:80px}.total{font-size:26px;font-weight:700;text-align:right;margin:10px 0}
.login{max-width:380px;margin:8vh auto}.login input{width:100%}
@media print{.top,.noprint{display:none}body{background:#fff}.card{box-shadow:none}}
.receipt{max-width:340px;margin:0 auto;font-family:monospace}.receipt table td,.receipt table th{padding:3px 2px;border:0;background:none}