:root{--navy:#0B2A6B;--blue:#1565D8;--gold:#F2A900;--bg:#F4F6FB;--line:#DDE3EE;--text:#1E2633;--muted:#5A6478;--green:#137333;--red:#C62828;--wifi:#E6F0FF}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans Khmer",Arial,sans-serif;background:var(--bg);color:var(--text);font-size:15px}
a{color:var(--blue);text-decoration:none}
.top{background:var(--navy);color:#fff;display:flex;align-items:center;gap:20px;padding:8px 20px;border-bottom:3px solid var(--gold);flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:#fff}
.brand img{height:44px}
.brand span{display:flex;flex-direction:column;line-height:1.2}
.brand small{color:#b9c6e6;font-size:12px}
.top nav{display:flex;gap:4px;flex-wrap:wrap;flex:1}
.top nav a{color:#dbe4fb;padding:8px 12px;border-radius:6px}
.top nav a.on,.top nav a:hover{background:rgba(255,255,255,.14);color:#fff}
.me{display:flex;align-items:center;gap:10px;font-size:13px}
.me a{color:#dbe4fb}
.role{background:var(--gold);color:var(--navy);border-radius:10px;padding:1px 8px;font-size:11px;font-weight:700;text-transform:uppercase}
.me form{margin:0}
button.link{background:none;border:0;color:#dbe4fb;cursor:pointer;font:inherit;padding:0}
main{max-width:1200px;margin:0 auto;padding:20px}
h1{color:var(--navy);margin:6px 0 18px;font-size:24px}
h2{color:var(--navy);font-size:18px;margin:0 0 12px}
.card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:18px;margin-bottom:18px}
.grid{display:grid;gap:16px}
.g4{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.g2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.stat{background:#fff;border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:10px;padding:14px 16px}
.stat b{display:block;font-size:26px;color:var(--navy)}
.stat span{color:var(--muted);font-size:13px}
.stat.warn{border-left-color:var(--gold)}
.stat.good{border-left-color:var(--green)}
table{width:100%;border-collapse:collapse;background:#fff}
th{background:var(--navy);color:#fff;text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.3px;padding:9px 10px;white-space:nowrap}
td{padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
tr.wifi td{background:var(--wifi)}
td.num,th.num{text-align:right;white-space:nowrap}
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:10px}
img.thumb{width:48px;height:48px;object-fit:contain;background:#fff;border-radius:6px}
.muted{color:var(--muted);font-size:13px}
.pill{display:inline-block;border-radius:10px;padding:2px 8px;font-size:12px;font-weight:600}
.pill.ok{background:#E3F6E8;color:var(--green)}
.pill.low{background:#FFF4D6;color:#8a5a00}
.pill.zero{background:#FDE7E7;color:var(--red)}
.pill.in{background:#E3F6E8;color:var(--green)}
.pill.out{background:#FDE7E7;color:var(--red)}
.pill.adjust{background:#E6F0FF;color:var(--blue)}
form.inline{display:inline}
label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}
input,select,textarea{width:100%;padding:9px 10px;border:1px solid var(--line);border-radius:6px;font:inherit;background:#fff}
input:focus,select:focus,textarea:focus{outline:2px solid #bcd3fb;border-color:var(--blue)}
.row{display:flex;gap:12px;flex-wrap:wrap}
.row>*{flex:1;min-width:140px}
.btn{display:inline-block;background:var(--blue);color:#fff;border:0;border-radius:6px;padding:9px 16px;font:inherit;font-weight:600;cursor:pointer;margin-top:12px}
.btn.gold{background:var(--gold);color:var(--navy)}
.btn.grey{background:#e7ebf3;color:var(--text)}
.btn.red{background:var(--red)}
.btn.sm{padding:5px 10px;font-size:13px;margin:0}
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.toolbar input,.toolbar select{width:auto;min-width:180px}
.toolbar .btn{margin:0}
.flash{padding:10px 14px;border-radius:8px;margin-bottom:16px;font-weight:600}
.flash.ok{background:#E3F6E8;color:var(--green)}
.flash.err{background:#FDE7E7;color:var(--red)}
body.auth{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(160deg,var(--navy),#123d91)}
.authbox{background:#fff;border-radius:14px;padding:28px;width:100%;max-width:380px;border-top:4px solid var(--gold)}
.authlogo{display:block;height:90px;margin:0 auto 6px}
.authbox h1{text-align:center;font-size:20px}
.authbox .btn{width:100%}
.photo-preview{width:120px;height:120px;object-fit:contain;border:1px solid var(--line);border-radius:8px;background:#fff}
@media (max-width:700px){.top{gap:8px}.me{width:100%;justify-content:flex-end}main{padding:12px}h1{font-size:20px}}
input[type=checkbox]{width:auto;min-width:0!important;padding:0;margin:0}
label.chk{margin:0;display:flex;gap:6px;align-items:center;color:var(--text);font-size:14px;white-space:nowrap}
@media (max-width:700px){.top{padding:8px 12px}.top nav{order:3;width:100%;flex:none;flex-wrap:nowrap;overflow-x:auto}.top nav a{white-space:nowrap;padding:6px 10px}.me{width:auto;margin-left:auto}.toolbar form{width:100%}.toolbar input[name=q]{flex:1 1 100%;min-width:0}.toolbar select{flex:1;min-width:0}}