:root{
  --bg:#F6F7F9; --card:#FFFFFF; --ink:#16202C; --ink2:#4A5565; --muted:#7A8494;
  --line:#E3E7ED; --line2:#EEF1F5; --brand:#1F3A5F; --brand2:#2D5389; --gold:#C9A35A;
  --green:#127A4B; --green-bg:#E7F5EE; --red:#B42318; --red-bg:#FDECEA; --amber:#9A6200; --amber-bg:#FFF4DB;
  --blue-bg:#EAF0F8; --radius:12px; --shadow:0 1px 2px rgba(16,24,40,.05);
  font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font-size:15px;-webkit-text-size-adjust:100%}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--brand2)}
.boot{padding:40px;text-align:center;color:var(--muted)}
.num{font-variant-numeric:tabular-nums}

/* layout */
.shell{min-height:100vh;display:flex;flex-direction:column}
.topbar{position:sticky;top:0;z-index:20;background:var(--brand);color:#fff;display:flex;align-items:center;gap:8px;padding:0 16px;height:56px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;letter-spacing:.2px;margin-right:12px}
.logo img{width:30px;height:30px;border-radius:8px}
.nav{display:flex;gap:4px;flex:1}
.nav a{display:flex;align-items:center;gap:7px;color:#D5DEEA;text-decoration:none;padding:8px 12px;border-radius:8px;font-weight:500}
.nav a:hover{background:rgba(255,255,255,.08);color:#fff}
.nav a.on{background:rgba(255,255,255,.14);color:#fff}
.nav svg{width:18px;height:18px}
.userbox{display:flex;align-items:center;gap:8px;font-size:13px;color:#C9D3E0}
.userbox button{background:transparent;border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:8px;padding:5px 10px;cursor:pointer}
main{flex:1;width:100%;max-width:1280px;margin:0 auto;padding:20px 16px 90px}
.bottomnav{display:none}
@media (max-width:760px){
  .nav,.userbox .who{display:none}
  .topbar{justify-content:space-between}
  .bottomnav{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:30;background:#fff;border-top:1px solid var(--line);padding:6px 4px calc(6px + env(safe-area-inset-bottom))}
  .bottomnav a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:11px;color:var(--muted);text-decoration:none;padding:4px 0}
  .bottomnav a.on{color:var(--brand)}
  .bottomnav svg{width:22px;height:22px}
  main{padding:14px 12px 90px}
}

h1{font-size:22px;margin:0 0 4px}
h2{font-size:17px;margin:0 0 10px}
h3{font-size:15px;margin:0 0 8px}
.sub{color:var(--muted);font-size:13px;margin:0 0 16px}
.pagehead{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.pagehead .sub{margin:0}

/* cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.pad{padding:16px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media (max-width:900px){.grid3{grid-template-columns:1fr}}
@media (max-width:640px){.grid2{grid-template-columns:1fr}}

/* dashboard */
.boxcard h2{display:flex;align-items:center;justify-content:space-between}
.boxstats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.stat{background:var(--line2);border-radius:10px;padding:10px 12px}
.stat .l{font-size:12px;color:var(--ink2);font-weight:500}
.stat .v{font-size:24px;font-weight:700;margin-top:2px}
.stat.hl{background:var(--blue-bg)}
.stat.hl .v{color:var(--brand)}
.boxfoot{font-size:12.5px;color:var(--ink2);margin-top:10px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:6px}
.money .l{font-size:13px;color:var(--ink2);font-weight:600}
.money .v{font-size:28px;font-weight:700;margin:6px 0 4px}
.money .e{font-size:12.5px;color:var(--muted);line-height:1.4}
.money.pos .v{color:var(--green)} .money.neg .v{color:var(--red)}
.breakdown{margin-top:14px}
.breakdown table{width:100%;border-collapse:collapse}
.breakdown td{padding:8px 4px;border-top:1px solid var(--line2)}
.breakdown td:last-child{text-align:right;font-weight:600}
.breakdown .note{color:var(--muted);font-size:12px;font-weight:400}

/* buttons & inputs */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 14px;font-weight:600;cursor:pointer;white-space:nowrap;text-decoration:none;color:var(--ink)}
.btn:hover{background:#F2F4F7}
.btn svg{width:16px;height:16px}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand2)}
.btn.sold{background:var(--green);border-color:var(--green);color:#fff}
.btn.sold:hover{filter:brightness(1.08)}
.btn.danger{color:var(--red);border-color:#F3C5C0}
.btn.danger:hover{background:var(--red-bg)}
.btn.ghost{border-color:transparent;background:transparent}
.btn.sm{padding:5px 10px;font-size:13px;border-radius:8px}
.btn.lg{padding:12px 18px;font-size:16px}
.btn[disabled]{opacity:.45;cursor:not-allowed;filter:none}
.input,select.input,textarea.input{width:100%;border:1px solid #CDD4DE;border-radius:9px;padding:9px 11px;background:#fff;outline:none}
.input:focus{border-color:var(--brand2);box-shadow:0 0 0 3px rgba(45,83,137,.15)}
textarea.input{min-height:64px;resize:vertical}
label.f,div.f{display:block;font-size:13px;font-weight:600;color:var(--ink2);margin-bottom:12px}
label.f > .input, label.f > select, label.f > textarea, label.f > .row{margin-top:5px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.row > .grow{flex:1;min-width:140px}
.hint{font-size:12px;color:var(--muted);font-weight:400}
.search{position:relative;flex:1;min-width:220px}
.search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--muted)}
.search input{padding-left:38px;height:44px;font-size:16px}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 12px;font-size:13px;font-weight:600;cursor:pointer;color:var(--ink2)}
.chip.on{background:var(--brand);border-color:var(--brand);color:#fff}
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:12px}

/* product grid */
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:12px}
@media (max-width:400px){.pgrid{grid-template-columns:1fr}}
.pcard{display:flex;flex-direction:column;padding:12px;gap:10px}
.pcard.out{opacity:.72}
.ptop{display:flex;gap:12px}
.pimg{width:96px;height:96px;flex:none;border-radius:10px;background:#F2F4F7;border:1px solid var(--line2);overflow:hidden;display:flex;align-items:center;justify-content:center;position:relative;cursor:zoom-in}
.pimg img{width:100%;height:100%;object-fit:contain;background:#fff}
.pimg .ph{color:#B7BFCB;font-size:11px;text-align:center;padding:4px;cursor:default}
.pimg .tag{position:absolute;left:0;right:0;bottom:0;background:rgba(0,0,0,.55);color:#fff;font-size:9.5px;text-align:center;padding:1px}
.pinfo{flex:1;min-width:0}
.pname{font-weight:700;font-size:15px;line-height:1.25;margin-bottom:2px;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.pmeta{font-size:12.5px;color:var(--ink2);margin-bottom:6px}
.badge{display:inline-block;font-size:11px;font-weight:700;padding:2px 7px;border-radius:6px;background:var(--line2);color:var(--ink2);vertical-align:1px}
.badge.b1{background:#E6EEF8;color:#24508A}
.badge.b2{background:#F6ECDA;color:#8A5A12}
.badge.red{background:var(--red-bg);color:var(--red)}
.badge.green{background:var(--green-bg);color:var(--green)}
.badge.amber{background:var(--amber-bg);color:var(--amber)}
.prices{display:flex;gap:14px;font-size:12.5px;color:var(--ink2)}
.prices b{color:var(--ink);font-size:14px}
.counts{display:grid;grid-template-columns:repeat(3,1fr);background:var(--line2);border-radius:9px;text-align:center;padding:6px 0}
.counts div{font-size:11.5px;color:var(--ink2)}
.counts b{display:block;font-size:17px;color:var(--ink)}
.counts .left b{color:var(--brand)}
.sizes{display:flex;flex-wrap:wrap;gap:5px}
.sz{border:1px solid var(--line);border-radius:7px;padding:3px 8px;font-size:12.5px;background:#fff;white-space:nowrap}
.sz b{margin-left:4px;color:var(--brand)}
.sz.zero{color:#A9B1BD;background:#F7F8FA;text-decoration:line-through}
.sz.zero b{color:#A9B1BD}
.pactions{display:flex;gap:8px}
.pactions .btn.sold,.pactions .btn.soldout{flex:1}
.btn.soldout,.btn.soldout[disabled]{background:var(--red);border-color:var(--red);color:#fff;opacity:1;cursor:default}

/* tables */
.table-wrap{overflow-x:auto}
table.t{width:100%;border-collapse:collapse;font-size:13.5px}
table.t th{text-align:left;font-size:12px;color:var(--ink2);font-weight:600;padding:8px 10px;border-bottom:1px solid var(--line);white-space:nowrap;background:#FAFBFC}
table.t td{padding:8px 10px;border-bottom:1px solid var(--line2);vertical-align:middle}
table.t td.r,table.t th.r{text-align:right}
table.t tr.rev td{color:var(--muted)}
table.t tr.rev td .strike{text-decoration:line-through}
.thumb{width:40px;height:40px;border-radius:7px;object-fit:contain;background:#fff;border:1px solid var(--line2)}
.thumbph{width:40px;height:40px;border-radius:7px;background:#F2F4F7}

/* sales list (mobile cards) */
.slist{display:none}
@media (max-width:760px){
  .hist-table{display:none}
  .slist{display:flex;flex-direction:column;gap:8px}
  .sitem{display:flex;gap:10px;padding:10px}
  .sitem .grow{flex:1;min-width:0}
}

/* modal */
.overlay{position:fixed;inset:0;background:rgba(16,24,40,.45);z-index:50;display:flex;align-items:flex-start;justify-content:center;padding:40px 12px;overflow-y:auto}
.modal{background:#fff;border-radius:14px;width:100%;max-width:560px;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.modal.wide{max-width:920px}
.modal .mh{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line)}
.modal .mh h2{margin:0}
.modal .mb{padding:16px 18px}
.modal .mf{display:flex;justify-content:flex-end;gap:10px;padding:12px 18px;border-top:1px solid var(--line);background:#FAFBFC;border-radius:0 0 14px 14px}
@media (max-width:640px){.overlay{padding:0;align-items:flex-end}.modal{border-radius:14px 14px 0 0;max-height:94vh;overflow-y:auto}}
.x{border:0;background:transparent;font-size:24px;line-height:1;cursor:pointer;color:var(--muted);padding:4px 8px}

.sizepick{display:flex;flex-wrap:wrap;gap:8px}
.sizepick button{border:1.5px solid var(--line);background:#fff;border-radius:10px;padding:8px 12px;cursor:pointer;min-width:64px;text-align:center}
.sizepick button small{display:block;font-size:11px;color:var(--muted)}
.sizepick button.on{border-color:var(--green);background:var(--green-bg)}
.sizepick button[disabled]{opacity:.4;cursor:not-allowed}
.stepper{display:inline-flex;align-items:center;border:1px solid #CDD4DE;border-radius:9px;overflow:hidden}
.stepper button{width:42px;height:42px;border:0;background:#F2F4F7;font-size:20px;cursor:pointer}
.stepper input{width:60px;height:42px;border:0;text-align:center;font-size:17px;font-weight:700;outline:none}
.sumbox{background:var(--line2);border-radius:10px;padding:10px 12px;margin-top:6px}
.sumbox .r{display:flex;justify-content:space-between;padding:3px 0;font-size:14px}
.sumbox .r.big{font-size:17px;font-weight:700;border-top:1px solid var(--line);margin-top:4px;padding-top:7px}

/* alerts */
.alert{border-radius:10px;padding:10px 12px;font-size:13.5px;margin-bottom:12px;border:1px solid}
.alert.err{background:var(--red-bg);border-color:#F3C5C0;color:#7A1A12}
.alert.warn{background:var(--amber-bg);border-color:#F2D9A2;color:#6B4600}
.alert.ok{background:var(--green-bg);border-color:#B9E2CD;color:#0D5535}
.alert.info{background:var(--blue-bg);border-color:#C9D7EA;color:#1F3A5F}
#toasts{position:fixed;right:16px;bottom:16px;z-index:100;display:flex;flex-direction:column;gap:8px;max-width:min(420px,calc(100vw - 32px))}
@media (max-width:760px){#toasts{bottom:80px}}
.toast{background:#16202C;color:#fff;border-radius:10px;padding:11px 14px;font-size:14px;box-shadow:0 8px 24px rgba(0,0,0,.25)}
.toast.ok{background:#0F5E3B}.toast.err{background:#9B1C12}

/* size editor */
.sztable{width:100%;border-collapse:collapse}
.sztable th{font-size:12px;color:var(--ink2);text-align:left;padding:4px}
.sztable td{padding:4px}
.sztable .input{padding:7px 9px}
.lot{display:flex;justify-content:space-between;gap:8px;align-items:center;padding:6px 0;border-top:1px dashed var(--line);font-size:13px}
.sizeblock{border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-bottom:10px}
.sizeblock .hd{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap}

/* auth */
.authwrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(160deg,#1F3A5F 0%,#2D5389 60%,#3E6AA5 100%)}
.authcard{background:#fff;border-radius:16px;padding:26px;width:100%;max-width:380px;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.authcard .logo{color:var(--ink);justify-content:center;margin:0 0 6px;font-size:22px}
.authcard .logo img{width:40px;height:40px}

.empty{text-align:center;color:var(--muted);padding:40px 16px}
.muted{color:var(--muted)}
.small{font-size:12.5px}
.right{text-align:right}
.mt{margin-top:14px}.mb0{margin-bottom:0}
.sep{height:1px;background:var(--line);margin:14px 0}
.steps{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.steps span{font-size:12.5px;font-weight:600;padding:5px 10px;border-radius:999px;background:var(--line2);color:var(--muted)}
.steps span.on{background:var(--brand);color:#fff}
.steps span.done{background:var(--green-bg);color:var(--green)}
.kv{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:8px}
.kv div{background:var(--line2);border-radius:9px;padding:8px 10px}
.kv .l{font-size:12px;color:var(--ink2)} .kv .v{font-size:18px;font-weight:700}
.kv .warn{background:var(--amber-bg)} .kv .bad{background:var(--red-bg)} .kv .good{background:var(--green-bg)}
.progress{height:8px;background:var(--line2);border-radius:99px;overflow:hidden;margin:8px 0}
.progress div{height:100%;background:var(--brand);width:0;transition:width .2s}
.phgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px}
.phitem{padding:8px;display:flex;flex-direction:column;gap:6px}
.phitem .imgs{display:flex;gap:6px}
.phitem .imgs img{width:96px;height:96px;object-fit:contain;background:#fff;border:1px solid var(--line2);border-radius:8px}
.phitem .imgs .lbl{font-size:10px;color:var(--muted);text-align:center}
.cands{display:flex;flex-direction:column;gap:4px}
.cand{display:flex;gap:6px;align-items:center;border:1px solid var(--line);border-radius:8px;padding:4px;cursor:pointer;font-size:12px;background:#fff;text-align:left}
.cand img{width:40px;height:40px;object-fit:contain;border-radius:5px;background:#fff}
.cand.on{border-color:var(--green);background:var(--green-bg)}
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:120;display:flex;align-items:center;justify-content:center;padding:20px;cursor:zoom-out}
.lightbox img{max-width:100%;max-height:100%;background:#fff;border-radius:8px}
.toolcards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.toolcard{padding:16px;display:flex;flex-direction:column;gap:8px}
.toolcard p{margin:0;color:var(--ink2);font-size:13.5px;line-height:1.45;flex:1}
details.box{border:1px solid var(--line);border-radius:10px;padding:8px 12px;background:#fff;margin-bottom:8px}
details.box summary{cursor:pointer;font-weight:600}

.cu-h{display:flex;gap:8px;align-items:center;margin:0 0 6px}
.cu-h svg{width:20px;height:20px;flex:none;color:var(--red)}