:root{--navy:#14295e;--navy2:#0e1e45;--amber:#f0a93b;--bg:#f1f4f9;--line:#d9e0ec;--muted:#5f6b85;--ok:#16a34a;--bad:#dc3f55;--soft:#e3e9f5}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:#16203a;font-size:15px}
a{color:var(--navy)}
.top{background:var(--navy);color:#fff;border-bottom:3px solid var(--amber);padding:10px 18px;display:flex;flex-wrap:wrap;align-items:center;gap:16px;justify-content:space-between}
.brand{display:flex;gap:10px;align-items:center}
.brand b{display:block;font-size:17px}.brand small{font-size:10px;letter-spacing:1.3px;color:#c9d3ee}
.logo{background:#fff;color:var(--navy);width:36px;height:36px;border-radius:10px;display:grid;place-items:center;font-weight:900}
nav{display:flex;flex-wrap:wrap;gap:4px}
nav a{color:#dfe6f8;text-decoration:none;padding:8px 12px;border-radius:8px;font-weight:600}
nav a.on,nav a:hover{background:rgba(255,255,255,.14);color:#fff}
nav a.out{color:var(--amber)}
main{max-width:1180px;margin:0 auto;padding:18px}
h1{margin:6px 0 14px;font-size:24px;color:var(--navy)}
h2{font-size:17px;margin:0 0 12px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;margin-bottom:16px;overflow-x:auto}
.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));margin-bottom:16px}
.stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px}
.stat b{display:block;font-size:22px;margin-top:4px}.stat span{color:var(--muted);font-size:13px}
table{width:100%;border-collapse:collapse}
th{background:var(--navy);color:#fff;text-align:left;padding:10px;font-size:12.5px;letter-spacing:.4px;border-bottom:3px solid var(--amber)}
th:first-child{border-radius:10px 0 0 0}th:last-child{border-radius:0 10px 0 0}
td{padding:10px;border-bottom:1px solid var(--line);vertical-align:top}
.r{text-align:right}.muted{color:var(--muted)}.small{font-size:12.5px}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font:inherit;background:#fff}
label{display:block;font-weight:700;font-size:12.5px;color:var(--muted);margin:10px 0 4px;letter-spacing:.3px}
.row{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
button,.btn{background:var(--navy);color:#fff;border:0;border-radius:10px;padding:10px 16px;font:inherit;font-weight:700;cursor:pointer;text-decoration:none;display:inline-block}
button.alt,.btn.alt{background:#fff;color:var(--navy);border:1px solid var(--line)}
button.danger{background:var(--bad)}
.flash{padding:12px 14px;border-radius:10px;margin-bottom:14px;font-weight:600}
.flash.ok{background:#dcfce7;color:#14532d}.flash.err{background:#fee2e2;color:#7f1d1d}
.pill{display:inline-block;padding:2px 9px;border-radius:99px;font-size:12px;font-weight:700;background:var(--soft);color:var(--navy)}
.pill.ok{background:#dcfce7;color:#14532d}.pill.bad{background:#fee2e2;color:#7f1d1d}.pill.warn{background:#fef3c7;color:#78350f}
code,.key{font-family:ui-monospace,Consolas,monospace;font-size:12.5px;background:var(--bg);padding:3px 6px;border-radius:6px;word-break:break-all}
.key{display:block;padding:12px;margin:8px 0;user-select:all}
.bar{height:12px;background:var(--soft);border-radius:6px;overflow:hidden;min-width:80px}.bar i{display:block;height:100%;background:var(--navy)}
.login{max-width:380px;margin:9vh auto}
.tabs{display:flex;gap:6px;margin-bottom:14px;flex-wrap:wrap}.tabs a{padding:8px 14px;border-radius:99px;background:#fff;border:1px solid var(--line);text-decoration:none;font-weight:700}.tabs a.on{background:var(--navy);color:#fff}
@media(max-width:640px){main{padding:12px}.top{padding:10px 12px}}

/* online billing */
.storesel{width:auto;padding:6px 10px;border-radius:8px;background:#fff;color:var(--navy);font-weight:700}
.storetag{background:rgba(255,255,255,.14);padding:6px 12px;border-radius:8px;font-weight:700;font-size:13px}
.pos{display:grid;gap:16px;grid-template-columns:minmax(260px,1fr) minmax(380px,1.5fr);align-items:start}
@media(max-width:900px){.pos{grid-template-columns:1fr}}
.results{display:grid;gap:8px;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));margin-top:12px;max-height:60vh;overflow:auto}
.item{display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-align:left;padding:10px;font-weight:600}
.qty{font-size:18px;font-weight:800;text-align:center}
.sum td{padding:4px 10px;border:0}.grand{display:flex;justify-content:space-between;align-items:center;background:var(--navy);color:#fff;border-radius:10px;padding:12px 16px;margin-top:8px;font-size:15px}.grand b{font-size:26px}
.small{font-size:12.5px}button.small,.btn.small{padding:5px 10px;font-size:12.5px}
.receipt{background:#fff;border:1px solid var(--line);margin:0 auto;padding:16px;font-size:13px;line-height:1.45}
.receipt.roll{max-width:340px}.receipt.a4{max-width:760px;font-size:14px;padding:30px}
.receipt .c{text-align:center}.receipt .shop{font-size:18px}.receipt hr{border:0;border-top:1px dashed #999;margin:8px 0}
.receipt .two{display:flex;justify-content:space-between}.receipt .grandline{font-size:18px;font-weight:800}
.receipt .lines th{background:none;color:#000;border-bottom:1px solid #999;padding:4px 2px;font-size:12px}.receipt .lines td{padding:4px 2px;border:0}
.receipt .qty{font-size:17px;font-weight:800}
@media print{.top,.noprint,.flash{display:none!important}body{background:#fff}main{padding:0;max-width:none}.receipt{border:0;margin:0}.receipt.roll{max-width:none;width:72mm}}

.top .storesel{width:auto;max-width:260px;flex:0 0 auto}

.logo{overflow:hidden;background:#fff;padding:0}.logo img{width:100%;height:100%;object-fit:cover;display:block}

/* Android app + small screens */
body.app .top.appbar{padding:8px 14px;gap:8px;flex-wrap:nowrap}
body.app .brand b{font-size:15px}body.app .brand small{font-size:10.5px;letter-spacing:.6px}
body.app .logo{width:30px;height:30px;border-radius:8px}
body.app main{padding:10px 10px 18px}
body.app h1{font-size:19px;margin:2px 0 10px}
@media(max-width:700px){main{padding:10px}h1{font-size:21px}.card{padding:12px;border-radius:12px}.grid{grid-template-columns:repeat(2,1fr);gap:10px}.stat b{font-size:19px}}