:root{--bg:#f4f6f9;--card:#fff;--ink:#1d2733;--muted:#6b7785;--line:#e3e8ee;--pri:#1f5fa8;--pri2:#174a85;
--danger:#c0392b;--warn:#b7791f;--ok:#2f855a;--kho:#d97706;--ts:#7c3aed;--cp:#0f766e;--lt:#9b2c2c;--cr:#64748b}
*{box-sizing:border-box}
body{margin:0;font:14px/1.45 -apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--pri);text-decoration:none}a:hover{text-decoration:underline}
h1{font-size:22px;margin:18px 0 10px}h2{font-size:17px;margin:22px 0 10px}h3{font-size:15px;margin:4px 0 8px}
.muted{color:var(--muted)}.small,small{font-size:12px}.nowrap{white-space:nowrap}
header.top{display:flex;align-items:center;gap:18px;background:#13324f;color:#fff;padding:0 18px;position:sticky;top:0;z-index:10;flex-wrap:wrap}
.brand{font-weight:700;font-size:17px;padding:12px 0}.brand span{font-weight:400;opacity:.8}
header nav{display:flex;flex-wrap:wrap;gap:2px;flex:1}
header nav a{color:#cfe0f3;padding:14px 10px;border-bottom:3px solid transparent}
header nav a.on,header nav a:hover{color:#fff;border-bottom-color:#5aa9ff;text-decoration:none}
.me{display:flex;gap:10px;align-items:center}.me a{color:#fff}.me form{margin:0}
button.link{background:none;border:0;color:#cfe0f3;cursor:pointer;padding:0;font:inherit}
button.link.danger{color:var(--danger)}
main{max-width:1280px;margin:0 auto;padding:6px 20px 40px}main.wide{max-width:1600px}
main.center{display:flex;justify-content:center;align-items:center;min-height:80vh}
footer{text-align:center;color:var(--muted);font-size:12px;padding:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px 18px;margin:12px 0;box-shadow:0 1px 2px rgba(0,0,0,.03)}
.card.narrow{max-width:460px}.login{width:360px}
label{display:block;margin:10px 0;font-weight:600;font-size:13px}
input,select,textarea{font:inherit;padding:7px 9px;border:1px solid #c9d2dc;border-radius:7px;background:#fff;color:var(--ink)}
label input,label select,label textarea{display:block;width:100%;margin-top:4px;font-weight:400}
textarea.mono{width:100%;font-family:Consolas,monospace;font-size:13px}
.btn{display:inline-block;padding:7px 14px;border-radius:7px;border:1px solid #c9d2dc;background:#fff;color:var(--ink);cursor:pointer;font:inherit}
.btn:hover{text-decoration:none;background:#f0f3f7}
.btn.primary{background:var(--pri);border-color:var(--pri);color:#fff}.btn.primary:hover{background:var(--pri2)}
.btn.ghost{background:transparent}
.alert{padding:9px 12px;border-radius:7px;margin:8px 0}
.alert.danger{background:#fdecea;color:var(--danger)}.alert.warn{background:#fff6e0;color:#8a5a00}.alert.ok{background:#e6f6ec;color:var(--ok)}
.filters{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:8px 0 14px}
.filters input[name=q]{min-width:260px}
.table-wrap{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:10px}
.card .table-wrap{border:0}
table.grid{border-collapse:collapse;width:100%}
.grid th,.grid td{padding:7px 9px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}
.grid th{background:#f7f9fb;font-weight:600;font-size:12.5px;position:sticky;top:0;z-index:1}
.grid.small td,.grid.small th{padding:5px 7px;font-size:12.5px}
.grid tr:hover td{background:#fafcff}
.num{text-align:right!important;white-space:nowrap;font-variant-numeric:tabular-nums}
.neg{color:var(--danger)}.hl{background:#fff4e5!important;font-weight:600}
tr.sep td{border-top:2px solid #cfd8e3}tr.total td{font-weight:700;border-top:2px solid #cfd8e3}
tr.notdecl td{background:#fffaf0}
.summary{display:flex;gap:12px;flex-wrap:wrap;margin:6px 0}
.summary div{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 14px;min-width:170px}
.summary span{display:block;color:var(--muted);font-size:12px}.summary b{font-size:18px}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0}
.chip{display:inline-block;padding:3px 9px;border-radius:999px;font-size:12px;border:1px solid currentColor;background:#fff}
.g-kho{color:var(--kho)}.g-tai_san{color:var(--ts)}.g-chi_phi{color:var(--cp)}.g-loai_tru{color:var(--lt)}.g-chua_ro{color:var(--cr)}
select.cat-sel{max-width:230px;font-size:12.5px;border-width:2px;border-color:currentColor}
.acct{display:block;margin-top:3px;max-width:230px}
.flag{display:inline-block;font-size:11px;padding:1px 6px;margin:3px 3px 0 0;border-radius:4px;background:#eef2f6;color:#475569}
.flag.f-ts_khong_so_huu,.flag.f-nguoi_mua_khac{background:#fdecea;color:var(--danger)}
.flag.f-khong_trong_bang_ke,.flag.f-kiem_tra_tscd,.flag.f-ca_nhan{background:#fff3d6;color:#8a5a00}
.warn-t{color:#b45309}
textarea.note{width:160px;font-size:12px;resize:vertical}
td .item-name{max-width:420px}
.pager{display:flex;gap:12px;align-items:center;justify-content:center;margin:14px}
ul.obs{list-style:none;padding:0;margin:0}
ul.obs li{padding:8px 10px 8px 34px;margin:6px 0;border-radius:7px;position:relative;font-size:13px}
ul.obs li::before{position:absolute;left:11px;top:8px;font-weight:700}
ul.obs li.danger{background:#fdecea}ul.obs li.danger::before{content:"!";color:var(--danger)}
ul.obs li.warn{background:#fff6e0}ul.obs li.warn::before{content:"?";color:var(--warn)}
ul.obs li.info{background:#eef5fd}ul.obs li.info::before{content:"i";color:var(--pri)}
.obs-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(380px,1fr));gap:12px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}@media(max-width:900px){.two{grid-template-columns:1fr}}
.bars{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 14px}
.bar{display:grid;grid-template-columns:330px 1fr 190px;gap:10px;align-items:center;padding:5px 0;color:var(--ink)}
.bar:hover{text-decoration:none;background:#fafcff}
.track{background:#eef2f6;border-radius:5px;height:14px;overflow:hidden}
.fill{display:block;height:100%;background:currentColor;opacity:.75}
.val{text-align:right;font-variant-numeric:tabular-nums}
.form-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:4px 14px}
.form-grid .full{grid-column:1/-1}.chk-l{display:flex;align-items:center;gap:8px;margin-top:30px}
.chk-l input{width:auto;margin:0}
form.inline{display:inline;margin-left:8px}
.bulkbar{position:sticky;top:52px;z-index:5;background:#13324f;color:#fff;padding:8px 12px;border-radius:8px;display:flex;gap:10px;align-items:center;margin:8px 0}
.prose h3{margin-top:18px}.prose li{margin:4px 0}
.toast{position:fixed;right:18px;bottom:18px;background:#13324f;color:#fff;padding:9px 14px;border-radius:8px;opacity:0;transition:opacity .2s;z-index:50}
.toast.show{opacity:1}.toast.err{background:var(--danger)}

.bulkbar[hidden]{display:none}
.table-wrap.purchases-table{max-height:calc(100vh - 180px);max-height:calc(100dvh - 180px);min-height:200px;isolation:isolate}
.purchases-table .grid th{box-shadow:0 1px 0 var(--line)}