:root {
  --bg: #f7f4f2; --card: #fff; --ink: #2a1d1a; --muted: #7a6a65; --line: #eadfdb;
  --brand: #cf1f25; --brand-d: #a8161b; --brand-l: #fbe8e8;
  --brown: #891a1c; --side: #3b1f1a; --side-ink: #ecd9d3; --side-mute: #b99a91;
  --danger: #b3261e; --warn: #b7791f; --ok: #1e8449;
  --radius: 8px;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--ink); background: var(--bg); }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.neg { color: var(--danger); font-weight: 600; }

/* Đăng nhập */
.login { min-height: 100%; display: grid; place-items: center; background: linear-gradient(135deg, #3b1f1a 0%, #891a1c 55%, #cf1f25 100%); padding: 16px; }
.login-card { background: #fff; width: 100%; max-width: 380px; padding: 28px; border-radius: 12px; display: grid; gap: 14px; box-shadow: 0 20px 50px rgba(0,0,0,.3); }
.login-card h1 { font-size: 18px; margin: 0; }
.brand-lg { font-weight: 800; font-size: 28px; color: var(--brand); letter-spacing: 2px; }
.error { color: var(--danger); min-height: 18px; font-size: 13px; }

/* Khung ứng dụng */
.app { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.sidebar { background: var(--side); color: var(--side-ink); display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; }
.brand { font-weight: 800; font-size: 22px; color: #fff; padding: 18px 18px 14px; letter-spacing: 2px; }
.brand span { display: block; font-size: 11px; font-weight: 400; letter-spacing: 0; color: var(--side-mute); }
nav { flex: 1; padding: 6px 8px; display: grid; align-content: start; gap: 2px; }
nav a { color: var(--side-ink); text-decoration: none; padding: 9px 12px; border-radius: 6px; display: block; }
nav a:hover { background: rgba(255,255,255,.09); }
nav a.active { background: var(--brand); color: #fff; font-weight: 600; }
.side-foot { padding: 14px 18px; border-top: 1px solid rgba(255,255,255,.1); font-size: 13px; }
.side-foot .muted { color: var(--side-mute); margin-bottom: 8px; }
button.link { background: none; border: 0; color: #f2b9b4; cursor: pointer; padding: 2px 0; display: block; font: inherit; }
button.link:hover { text-decoration: underline; }
main { padding: 22px 26px 40px; min-width: 0; }

/* Thành phần */
.page-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.page-head h2 { margin: 0; font-size: 20px; flex: 1; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.card h3 { margin: 0 0 12px; font-size: 15px; }
.grid { display: grid; gap: 14px; }
.kpis { grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); margin-bottom: 14px; }
.kpi .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }
.kpi .value { font-size: 22px; font-weight: 700; margin-top: 4px; }
.kpi .sub { color: var(--muted); font-size: 12px; margin-top: 2px; }
.two { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

input, select, textarea { font: inherit; color: inherit; padding: 8px 10px; border: 1px solid #d9cdc8; border-radius: 6px; background: #fff; width: 100%; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--brand-l); border-color: var(--brand); }
label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
label > input, label > select, label > textarea { color: var(--ink); }
textarea { resize: vertical; min-height: 60px; }

.btn { font: inherit; padding: 8px 14px; border-radius: 6px; border: 1px solid #d9cdc8; background: #fff; cursor: pointer; color: var(--ink); }
.btn:hover { background: #f6efec; }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }
.btn.primary:hover { background: var(--brand-d); }
.btn.danger { color: var(--danger); border-color: #e3b0ab; }
.btn.danger:hover { background: #fdf1f0; }
.btn.sm { padding: 4px 9px; font-size: 12.5px; }
.btn.block { width: 100%; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; align-items: center; }
.toolbar input, .toolbar select { width: auto; min-width: 200px; }

table { width: 100%; border-collapse: collapse; background: #fff; }
.table-wrap { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow-x: auto; }
th, td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { background: #faf6f4; font-size: 12px; text-transform: uppercase; letter-spacing: .3px; color: var(--muted); white-space: nowrap; }
th.right, td.right { text-align: right; }
tbody tr:last-child td { border-bottom: 0; }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: #fdf5f4; }
td.actions { white-space: nowrap; text-align: right; }
.empty { padding: 28px; text-align: center; color: var(--muted); }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; background: #f1e8e4; color: #6b564f; white-space: nowrap; }
.badge.ok { background: #e3f4ea; color: var(--ok); }
.badge.warn { background: #fcf1dc; color: var(--warn); }
.badge.bad { background: #fbe3e1; color: var(--danger); }
.badge.info { background: var(--brand-l); color: var(--brand-d); }

.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.form-grid .span2 { grid-column: 1 / -1; }
.items input, .items select { padding: 6px 8px; }
.items td { padding: 6px 8px; }
.totals { margin-left: auto; width: 320px; max-width: 100%; display: grid; gap: 8px; margin-top: 14px; }
.totals .row { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.totals .row input { width: 130px; text-align: right; }
.totals .grand { font-size: 18px; font-weight: 700; border-top: 2px solid var(--line); padding-top: 8px; }
.dl { display: grid; grid-template-columns: 140px 1fr; gap: 6px 12px; }
.dl dt { color: var(--muted); } .dl dd { margin: 0; }

/* Biểu đồ cột */
.chart { width: 100%; height: 220px; }
.chart .bar { fill: var(--brand); } .chart .bar:hover { fill: var(--brand-d); }
.chart text { fill: var(--muted); font-size: 11px; }
.chart line { stroke: var(--line); }
.bar-row { display: grid; grid-template-columns: 1fr auto; gap: 4px 10px; margin-bottom: 10px; }
.bar-row .track { grid-column: 1 / -1; height: 6px; background: #f1e8e4; border-radius: 3px; overflow: hidden; }
.bar-row .fill { height: 100%; background: var(--brand); }

/* Modal & toast */
.modal-back { position: fixed; inset: 0; background: rgba(40,20,16,.55); display: grid; place-items: start center; padding: 40px 14px; overflow-y: auto; z-index: 50; }
.modal { background: #fff; border-radius: 10px; width: 100%; max-width: 560px; box-shadow: 0 20px 50px rgba(0,0,0,.3); }
.modal.wide { max-width: 760px; }
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.modal-head h3 { margin: 0; font-size: 16px; }
.modal-body { padding: 18px; }
.modal-foot { padding: 12px 18px; border-top: 1px solid var(--line); display: flex; justify-content: flex-end; gap: 8px; }
.x { background: none; border: 0; font-size: 22px; cursor: pointer; color: var(--muted); line-height: 1; }
.toast { position: fixed; bottom: 22px; right: 22px; background: #3b1f1a; color: #fff; padding: 11px 16px; border-radius: 8px; opacity: 0; transform: translateY(10px); transition: .25s; pointer-events: none; z-index: 99; max-width: 380px; }
.toast.show { opacity: 1; transform: none; }
.toast.err { background: var(--danger); }

.invoice-title { text-align: center; margin: 0 0 4px; }

@media (max-width: 800px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; }
  nav { grid-auto-flow: column; overflow-x: auto; }
  nav a { white-space: nowrap; }
  main { padding: 16px 12px 30px; }
}
@media print {
  .no-print, .sidebar { display: none !important; }
  .app { display: block; } main { padding: 0; } body { background: #fff; }
  .card, .table-wrap { border: 0; padding: 0; }
}

a { color: var(--brand); }
a.btn { text-decoration: none; display: inline-block; color: var(--ink); }
a.btn.primary { color: #fff; }

/* ---- Nhận diện thương hiệu: đỏ + nâu ---- */
.brand { display: flex; align-items: center; gap: 11px; letter-spacing: 1px; font-size: 19px; line-height: 1.15; padding: 16px 16px 14px; border-bottom: 1px solid rgba(255,255,255,.08); }
.brand img { width: 44px; height: 44px; background: #fff; border-radius: 10px; padding: 3px; flex: none; }
.brand span { font-size: 11px; letter-spacing: .2px; }
.login-card { border-top: 5px solid var(--brand); }
.logo-lg { width: 84px; height: 84px; display: block; margin: 0 auto -2px; }
.login-card h1, .login-card .sub { text-align: center; }
.login-card .sub { margin: -8px 0 4px; color: var(--muted); font-size: 13px; }
nav a.active { background: var(--brand); box-shadow: inset 3px 0 0 #fff3; }
.page-head h2 { color: var(--brown); }
.card h3 { color: var(--brown); }
th { color: var(--brown); border-bottom: 2px solid #ecd9d3; }
.kpi { border-top: 3px solid var(--brand); }
.kpi:nth-child(even) { border-top-color: var(--brown); }
.kpi .value { color: var(--ink); }
.chart .bar { fill: var(--brand); } .chart .bar:hover { fill: var(--brown); }
.bar-row .fill { background: linear-gradient(90deg, var(--brown), var(--brand)); }
.badge.info { background: #f3e4df; color: var(--brown); }
.modal-head { border-bottom: 3px solid var(--brand); }
.modal-head h3 { color: var(--brown); }
.btn.primary { box-shadow: 0 1px 0 rgba(0,0,0,.08); }
input:focus, select:focus, textarea:focus { outline: 2px solid #f6c9c7; }
.invoice-head { display: none; align-items: center; gap: 14px; border-bottom: 3px solid var(--brand); padding-bottom: 10px; margin-bottom: 12px; }
.invoice-head img { width: 64px; height: 64px; }
.invoice-head b { font-size: 18px; color: var(--brown); display: block; }
@media print { .invoice-head { display: flex !important; } .kpi { border-top: 0; } }

/* ---- Nhập từ Excel ---- */
.im-h { margin: 18px 0 8px; color: var(--brown); font-size: 14px; }
label.radio { display: flex; gap: 9px; align-items: flex-start; color: var(--ink); font-size: 13.5px; margin-bottom: 7px; cursor: pointer; }
label.radio input { width: auto; margin-top: 3px; accent-color: var(--brand); }
.im-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 10px 0 14px; }
.im-stats .card { padding: 10px 12px; } .im-stats .kpi .value { font-size: 22px; }
.modal.wide { max-width: 900px; }
.modal-body { max-height: calc(100vh - 190px); overflow-y: auto; }
@media (max-width: 800px) { .im-stats { grid-template-columns: repeat(2, 1fr); } }

/* ---- Chứng từ bán hàng ---- */
.ribbon { display: flex; gap: 8px; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; margin-bottom: 12px; position: sticky; top: 0; z-index: 5; box-shadow: 0 2px 6px rgba(60,31,26,.06); }
.ribbon .sep { flex: 1; }
.vform { background: #fbf7f5; border: 1px solid var(--line); border-radius: 10px; padding: 16px; }
.vmode { display: flex; flex-wrap: wrap; gap: 8px 22px; align-items: center; margin-bottom: 16px; }
.vmode select { padding: 5px 8px; }
.vtop { display: grid; grid-template-columns: 1fr 320px; gap: 16px; align-items: start; }
fieldset.panel { border: 1px solid #e0d0ca; border-radius: 8px; margin: 0; padding: 12px 14px 4px; min-width: 0; background: #fff; }
fieldset.panel legend { color: var(--brown); font-weight: 700; padding: 0 8px; font-size: 13.5px; }
.fr { display: grid; grid-template-columns: 104px 1fr; gap: 8px; align-items: center; margin-bottom: 9px; }
.fr .fl, .vterms .fl { color: var(--muted); font-size: 13px; display: block; }
.fr2 { display: grid; grid-template-columns: minmax(130px, 190px) 1fr; gap: 8px; align-items: center; }
.fr2.tax { grid-template-columns: minmax(130px, 190px) auto 1fr; }
.vterms { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center; margin: 14px 0 12px; }
.vterms select, .vterms input { width: auto; }
.vtabs { display: flex; }
.vtab { background: var(--brand); color: #fff; padding: 7px 18px; border-radius: 8px 8px 0 0; font-weight: 600; font-size: 13px; }
.vgrid-wrap { overflow-x: auto; background: #fff; border: 1px solid #e0d0ca; border-radius: 0 8px 8px 8px; }
table.vgrid { min-width: 1000px; table-layout: fixed; }
.vgrid th { text-align: center; padding: 8px 6px; font-size: 11.5px; border-right: 1px solid #f1e8e4; }
.vgrid td { padding: 2px 5px; border-right: 1px solid #f6efec; font-size: 13.5px; }
.vgrid td.c { text-align: center; color: var(--muted); }
.vgrid td.pname { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.vgrid input { padding: 6px 7px; border-color: transparent; background: transparent; text-align: right; }
.vgrid input[data-k=code] { text-align: left; font-weight: 600; }
.vgrid input:hover { border-color: #d9cdc8; background: #fff; }
.vgrid input:focus { background: #fff; }
.vgrid input.bad, input.bad { border-color: var(--danger); background: #fdf1f0; }
.vgrid .x { font-size: 18px; }
.vgrid .x:hover { color: var(--danger); }
.addrow td { color: var(--brand); cursor: pointer; font-weight: 600; background: #fffaf6; padding: 8px 10px; }
.addrow td:hover { background: #fdf0ea; }
.sumrow td { background: #f6efec; font-weight: 700; padding: 8px 10px; border-top: 1px solid #e0d0ca; }
.vbottom { display: grid; grid-template-columns: 1fr 360px; gap: 16px; margin-top: 14px; align-items: start; }
.vbtns { display: flex; gap: 8px; margin-bottom: 10px; }
label.inl { display: flex; gap: 10px; align-items: center; }
.hint { margin: 10px 0 0; font-size: 12.5px; line-height: 1.55; }
.vtotals { background: #fff; border: 1px solid #e0d0ca; border-radius: 8px; padding: 12px 16px; display: grid; gap: 8px; }
.vtotals .row { display: flex; justify-content: space-between; }
.vtotals .grand { font-size: 18px; border-top: 2px solid var(--line); padding-top: 8px; color: var(--brown); }
@media (max-width: 900px) { .vtop, .vbottom { grid-template-columns: 1fr; } .fr { grid-template-columns: 1fr; gap: 3px; } .fr2, .fr2.tax { grid-template-columns: 1fr; } }

.vgrid th { white-space: normal; line-height: 1.25; }
.vgrid input[type=number] { -moz-appearance: textfield; appearance: textfield; }
.vgrid input::-webkit-outer-spin-button, .vgrid input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

/* ---- Sửa đơn / lịch sử ---- */
.notice { background: #fff6e5; border: 1px solid #f0d9a8; color: #6b4a12; border-radius: 8px; padding: 10px 14px; margin-bottom: 12px; font-size: 13.5px; line-height: 1.5; }
tr.voided td:not(.vnote) { text-decoration: line-through; color: var(--muted); }

/* ---- Mục Bán hàng: thanh thẻ + danh sách kiểu MISA ---- */
.stabs { display: flex; flex-wrap: wrap; gap: 2px; background: var(--brown); border-radius: 8px 8px 0 0; padding: 6px 8px 0; margin-bottom: 0; }
.stab { color: #f3dcd6; padding: 8px 16px; border-radius: 6px 6px 0 0; font-size: 13.5px; font-weight: 600; text-decoration: none; }
.stab:hover { background: rgba(255,255,255,.12); color: #fff; }
.stab.active { background: #fff; color: var(--brand-d); }
.stabs + .page-head { margin: 14px 0; }
.stabs + .ribbon { margin-top: 0; }
.s-tool { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; background: #fff; border: 1px solid var(--line); border-top: 0; padding: 8px 10px; }
.s-tool .btn:disabled { opacity: .45; cursor: not-allowed; }
.s-filter { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; background: #fbf7f5; border: 1px solid var(--line); border-top: 0; padding: 8px 10px; margin-bottom: 10px; }
.s-filter label { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 13px; }
.s-filter select, .s-filter input { width: auto; min-width: 0; padding: 5px 8px; }
.s-filter #g-q { min-width: 230px; }
.s-wrap { max-height: 46vh; overflow: auto; border-radius: 0; }
.s-table th { position: sticky; top: 0; z-index: 1; background: #f4ebe7; white-space: nowrap; }
.s-table td { white-space: nowrap; }
.s-table td.note { max-width: 240px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.s-table td.nowrap, .nowrap { white-space: nowrap; }
.s-table tbody tr { cursor: pointer; }
.s-table tbody tr:hover td { background: #fdf5f4; }
.s-table tbody tr.sel td { background: #fff1bf; }
.s-table tbody tr.dim td { color: #9a8a85; }
.s-table tfoot td { background: #f4ebe7; font-weight: 600; position: sticky; bottom: 0; }
.s-detail { margin-top: 12px; }
.s-dtab { display: inline-block; background: var(--brand); color: #fff; padding: 6px 18px; border-radius: 8px 8px 0 0; font-weight: 600; font-size: 13px; }
.s-dbody { border: 1px solid var(--line); border-radius: 0 8px 8px 8px; background: #fff; max-height: 34vh; overflow: auto; }
.s-dbody .table-wrap { border: 0; border-radius: 0; }
.pad { padding: 14px; margin: 0; }
.rgrid td.val { font-weight: 600; }
.rgrid input { text-align: right; }
@media (max-width: 800px) { .s-wrap { max-height: 40vh; } .s-filter #g-q { min-width: 100%; } }
.okc { color: var(--ok); }
th.c, td.c { text-align: center; }

/* ---- Chọn bộ dữ liệu sau đăng nhập ---- */
.biz-wrap { width: 100%; max-width: 860px; text-align: center; color: #fff; display: grid; gap: 10px; justify-items: center; }
.biz-wrap h1 { margin: 0; font-size: 26px; letter-spacing: 2px; }
.biz-wrap .sub { opacity: .85; margin-bottom: 14px; }
.biz-wrap .logo-lg { background: #fff; border-radius: 14px; padding: 6px; width: 76px; height: 76px; }
.biz-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; width: 100%; }
.biz-card { background: #fff; color: var(--ink); border: 0; border-top: 6px solid var(--brand); border-radius: 12px; padding: 24px 18px; cursor: pointer; text-align: center; box-shadow: 0 14px 34px rgba(0,0,0,.28); font: inherit; transition: transform .12s; }
.biz-card:hover, .biz-card:focus-visible { transform: translateY(-4px); outline: none; }
.biz-card b { display: block; font-size: 19px; margin-bottom: 6px; }
.biz-card span { color: var(--muted); font-size: 13px; }
.biz-card.all { border-top-color: #1f2a44; }
.biz-card.plastic { border-top-color: #1e8449; }
.biz-out { color: #fff !important; opacity: .85; margin-top: 8px; }
.ov-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; margin-bottom: 14px; }
.ov-card { background: var(--card); border: 1px solid var(--line); border-top: 5px solid var(--brand); border-radius: var(--radius); padding: 14px 16px; }
.ov-card.all { border-top-color: #1f2a44; } .ov-card.plastic { border-top-color: #1e8449; }
.ov-card h3 { margin: 0 0 8px; font-size: 15px; }
.ov-row { display: flex; justify-content: space-between; gap: 10px; padding: 5px 0; border-bottom: 1px dashed var(--line); }
.ov-row:last-child { border-bottom: 0; } .ov-row b { white-space: nowrap; }
.ov-big { font-size: 22px; font-weight: 800; }
.legend { display: flex; gap: 16px; font-size: 13px; color: var(--muted); margin: 4px 0 8px; }
.legend i { display: inline-block; width: 11px; height: 11px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }
.bar.c1 { fill: var(--brand); } .bar.c2 { fill: #1e8449; }
.biz-tag { display: inline-block; font-size: 11px; background: rgba(255,255,255,.14); border-radius: 10px; padding: 1px 8px; margin-top: 3px; }