:root {
  --nen: #f4f1ea;
  --mat: #ffffff;
  --chu: #1f2328;
  --chu-phu: #5b616b;
  --vien: #ddd6c8;
  --chinh: #8b1e1e;
  --chinh-dam: #6d1414;
  --nen-chinh: #8b1e1e;
  --nen-chinh-dam: #6d1414;
  --chinh-nhat: #f6e7e2;
  --xanh: #1d5c4b;
  --vang: #9a6700;
  --vang-nen: #fff6dd;
  --do-nen: #fdecea;
  --bong: 0 1px 2px rgba(31, 35, 40, .06), 0 4px 16px rgba(31, 35, 40, .05);
  --bo: 10px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --nen: #17191c; --mat: #202328; --chu: #ebe7df; --chu-phu: #a8a39a; --vien: #353941;
    --chinh: #d9675b; --chinh-dam: #e98478; --chinh-nhat: #3a2422; --nen-chinh: #9e3328; --nen-chinh-dam: #842a20; --xanh: #6cc0a5; --vang: #e2b44f;
    --vang-nen: #362d17; --do-nen: #3d2321;
  }
}
:root[data-theme="dark"] {
  --nen: #17191c; --mat: #202328; --chu: #ebe7df; --chu-phu: #a8a39a; --vien: #353941;
  --chinh: #d9675b; --chinh-dam: #e98478; --chinh-nhat: #3a2422; --nen-chinh: #9e3328; --nen-chinh-dam: #842a20; --xanh: #6cc0a5; --vang: #e2b44f;
  --vang-nen: #362d17; --do-nen: #3d2321;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 16px; }
body { margin: 0; background: var(--nen); color: var(--chu); font: 15px/1.55 "Be Vietnam Pro", system-ui, sans-serif; }
h1, h2 { margin: 0; line-height: 1.25; }
small { font-weight: 400; color: var(--chu-phu); font-size: .8em; }

.dau { background: var(--nen-chinh); color: #fff; }
.dau-trong { max-width: 1280px; margin: 0 auto; padding: 28px 16px 24px; display: flex; gap: 24px; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; }
.dau h1 { font-size: clamp(24px, 4vw, 34px); font-weight: 700; letter-spacing: -.01em; }
.dau .nhan { margin: 0 0 6px; font-size: 13px; opacity: .8; letter-spacing: .02em; }
.dau .mo-ta { margin: 8px 0 0; max-width: 62ch; opacity: .92; }
.nut-dau { display: flex; gap: 8px; flex-wrap: wrap; }
.dau .nut.phu { background: rgba(255,255,255,.12); color: #fff; border-color: rgba(255,255,255,.35); }
.dau .nut.phu:hover { background: rgba(255,255,255,.22); }

.khung { max-width: 1280px; margin: 0 auto; padding: 24px 16px 64px; display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 24px; align-items: start; }
.buoc { position: sticky; top: 16px; display: flex; flex-direction: column; gap: 2px; }
.buoc a { display: flex; gap: 10px; align-items: center; padding: 9px 10px; border-radius: 8px; color: var(--chu-phu); text-decoration: none; font-weight: 500; font-size: 14px; }
.buoc a:hover { background: var(--mat); color: var(--chu); }
.buoc span { width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; font-size: 12px; border: 1px solid var(--vien); background: var(--mat); flex: none; }
.noi-dung { display: flex; flex-direction: column; gap: 20px; min-width: 0; }

.the { background: var(--mat); border: 1px solid var(--vien); border-radius: var(--bo); padding: 22px; box-shadow: var(--bong); min-width: 0; }
.the h2 { font-size: 19px; font-weight: 600; display: flex; gap: 10px; align-items: baseline; margin-bottom: 14px; flex-wrap: wrap; }
.so { background: var(--nen-chinh); color: #fff; width: 26px; height: 26px; border-radius: 50%; display: inline-grid; place-items: center; font-size: 13px; flex: none; transform: translateY(-2px); }
.the.nhanh { border: 2px solid var(--chinh); }
.the.nhanh h2 { font-size: 21px; }
.goi-y { color: var(--chu-phu); font-size: 13.5px; margin: 6px 0 12px; }

.luoi { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px 16px; }
.luoi .rong { grid-column: 1 / -1; }
label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; font-weight: 500; color: var(--chu-phu); }
label.chon { flex-direction: row; align-items: center; gap: 8px; grid-column: 1 / -1; color: var(--chu); font-size: 14px; }
input, select, textarea { font: inherit; color: var(--chu); background: var(--mat); border: 1px solid var(--vien); border-radius: 7px; padding: 8px 10px; width: 100%; min-width: 0; }
input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--chinh); }
textarea { resize: vertical; line-height: 1.5; }
input:focus, select:focus, textarea:focus { outline: 2px solid color-mix(in srgb, var(--chinh) 40%, transparent); border-color: var(--chinh); }

.nut { font: inherit; font-weight: 600; font-size: 14px; border: 1px solid var(--nen-chinh); background: var(--nen-chinh); color: #fff; padding: 8px 14px; border-radius: 7px; cursor: pointer; white-space: nowrap; }
.nut:hover { background: var(--nen-chinh-dam); }
.nut.phu { background: transparent; color: var(--chinh); border-color: var(--chinh); }
.nut.phu:hover { background: var(--chinh-nhat); }
.nut.nho { padding: 6px 12px; font-size: 13px; margin-top: 10px; }
.nut.lon { padding: 12px 22px; font-size: 16px; }
.nut:disabled { opacity: .55; cursor: progress; }
.nut-xoa { border: 0; background: transparent; color: var(--chu-phu); cursor: pointer; font-size: 18px; padding: 2px 6px; border-radius: 6px; }
.nut-xoa:hover { color: var(--chinh); background: var(--chinh-nhat); }
.hang-nut { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin: 10px 0; }
.hang-nut.cuoi { margin-top: 18px; }
.trang-thai { font-size: 13.5px; color: var(--chu-phu); }
.trang-thai.loi { color: var(--chinh); }

.tim-nv .hang { display: grid; grid-template-columns: minmax(0, 240px) minmax(0, 1fr); gap: 10px; }
.ket-qua { list-style: none; margin: 8px 0 0; padding: 0; max-height: 300px; overflow: auto; border-radius: 8px; }
.ket-qua:not(:empty) { border: 1px solid var(--vien); }
.ket-qua li { padding: 9px 12px; border-bottom: 1px solid var(--vien); cursor: pointer; font-size: 14px; }
.ket-qua li:last-child { border-bottom: 0; }
.ket-qua li:hover { background: var(--chinh-nhat); }
.ket-qua b { color: var(--chinh); margin-right: 6px; }
.ket-qua .da-chon { opacity: .5; }

.ds-nv { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
.nv { border: 1px solid var(--vien); border-radius: 8px; padding: 12px; display: grid; grid-template-columns: 170px minmax(0, 1fr) auto; gap: 10px; align-items: start; }
.nv .phu-luc { grid-column: 2 / 3; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.nv .phan-ra { grid-column: 2 / 3; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: 13px; color: var(--chu-phu); }
.nv .phan-ra .nut.nho { padding: 4px 10px; font-size: 13px; margin-top: 0; }
.nv textarea { min-height: 42px; }

.cuon { overflow-x: auto; margin: 0 -4px; padding: 0 4px; }
table { border-collapse: collapse; width: 100%; font-size: 13.5px; }
th { text-align: left; font-weight: 600; color: var(--chu-phu); font-size: 12px; padding: 8px 6px; border-bottom: 2px solid var(--vien); vertical-align: bottom; }
td { padding: 6px; border-bottom: 1px solid var(--vien); vertical-align: top; }
.so-cot { text-align: right; }
.bang-cv { min-width: 1060px; }
.bang-cv td input, .bang-cv td select, .bang-cv td textarea { padding: 6px 8px; font-size: 13.5px; }
.bang-cv td:nth-child(2) { width: 140px; }
.bang-cv td:nth-child(3) { min-width: 280px; }
.bang-cv td:nth-child(6), .bang-cv td:nth-child(7), .bang-cv td:nth-child(8) { width: 100px; }
.bang-cv .gio { text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; padding-top: 12px; white-space: nowrap; }
.bang-cv tr.chi-tiet td { background: color-mix(in srgb, var(--nen) 60%, transparent); }
.chi-tiet .luoi { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.nut-mo { border: 0; background: none; color: var(--chinh); cursor: pointer; font-size: 12.5px; padding: 4px 0 0; font-weight: 500; }
.chua-ps { font-size: 12px; color: var(--vang); }
tfoot td { font-weight: 700; border-bottom: 0; }

.nhap-nhanh { border: 1px dashed var(--vien); border-radius: 8px; padding: 10px 14px; margin-bottom: 14px; }
.nhap-nhanh summary { cursor: pointer; font-weight: 600; }

.chi-so { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 18px; }
.o-so { border: 1px solid var(--vien); border-radius: 8px; padding: 12px 14px; }
.o-so .ten { font-size: 12.5px; color: var(--chu-phu); }
.o-so .gia-tri { font-size: 26px; font-weight: 700; font-variant-numeric: tabular-nums; margin-top: 2px; }
.o-so.noi { background: var(--chinh-nhat); border-color: transparent; }
.o-so.noi .gia-tri { color: var(--chinh); }

.ds-chu { display: grid; gap: 14px; }
.chu-muc { display: flex; flex-direction: column; gap: 5px; }
.chu-muc .tieu-de { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; font-size: 13px; font-weight: 600; color: var(--chu-phu); }
.chu-muc .tieu-de em { font-style: normal; font-weight: 500; font-size: 12px; color: var(--vang); }
.chu-muc .tieu-de button { border: 0; background: none; color: var(--chinh); cursor: pointer; font-size: 12px; }

.the-bieu { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; }
.the-bieu button { font: inherit; font-size: 13px; padding: 6px 12px; border: 1px solid var(--vien); background: var(--mat); color: var(--chu); border-radius: 999px; cursor: pointer; }
.the-bieu button[aria-selected="true"] { background: var(--chu); color: var(--mat); border-color: var(--chu); }
.bang-xem td { font-size: 13px; min-width: 90px; max-width: 420px; }
.bang-xem td.dai { min-width: 260px; }

.ds-loi:not(:empty) { border-radius: 8px; padding: 12px 14px; margin-bottom: 14px; background: var(--vang-nen); }
.ds-loi h3 { margin: 0 0 6px; font-size: 14px; }
.ds-loi ul { margin: 0; padding-left: 18px; font-size: 13.5px; }
.ds-loi.chan { background: var(--do-nen); }

.thong-bao { position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); background: var(--chu); color: var(--mat); padding: 10px 18px; border-radius: 8px; opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; font-size: 14px; max-width: calc(100% - 32px); }
.thong-bao.hien { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 860px) {
  .nut { white-space: normal; max-width: 100%; }
  .khung { grid-template-columns: 1fr; }
  .buoc { position: static; flex-direction: row; overflow-x: auto; gap: 4px; }
  .buoc a { white-space: nowrap; }
  .nv { grid-template-columns: 1fr; }
  .nv .phu-luc, .nv .phan-ra { grid-column: auto; }
  .nv .phu-luc { grid-template-columns: 1fr; }
  .tim-nv .hang { grid-template-columns: 1fr; }
  .the { padding: 16px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .thong-bao { transition: none; } }
.vung-tep { border: 2px dashed var(--vien); border-radius: 10px; padding: 18px; display: flex; flex-direction: column; gap: 4px; align-items: center; text-align: center; cursor: pointer; color: var(--chu-phu); font-size: 13.5px; }
.vung-tep strong { color: var(--chu); font-size: 15px; }
.vung-tep:hover, .vung-tep:focus-visible, .vung-tep.dang-keo { border-color: var(--chinh); background: var(--chinh-nhat); outline: none; }
.nhac { margin-top: 16px; border: 1px solid color-mix(in srgb, var(--vang) 45%, transparent); background: var(--vang-nen); border-radius: 8px; padding: 14px 16px; }
.nhac h3 { margin: 0 0 6px; font-size: 16px; }
.nhac p { margin: 0 0 10px; font-size: 14px; }
.nhac table { background: var(--mat); border-radius: 6px; }
.nhac tr.uoc td { color: var(--chu); font-weight: 500; }
.nhac tr.uoc td:last-child b { color: var(--chinh); }
.bang-xem td.o-sua { padding: 4px; }
.bang-xem td.o-sua input, .bang-xem td.o-sua textarea { padding: 5px 7px; font-size: 13px; min-width: 120px; }
.bang-xem td.o-sua input[type="number"] { min-width: 90px; }
.bang-xem td.dai textarea { min-width: 260px; }
.bang-xem td.gio-xem { font-weight: 600; text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.trang-thai.dang-doc { color: var(--chinh); font-weight: 600; font-size: 14.5px; }
.sao { color: #c62828; font-weight: 700; margin-left: 2px; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .sao { color: #ff8a80; } }
.thieu, input.thieu, select.thieu, textarea.thieu { border: 2px solid #c62828 !important; background: #fdecea !important; color: #1f2328; }
.thieu::placeholder { color: #a33; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .thieu { background: #4a1f1c !important; color: #ebe7df; border-color: #ff8a80 !important; } }
.chu-thieu { color: #c62828; font-size: 12px; font-weight: 600; }
.ghi-chu-sao { font-size: 13px; color: var(--chu-phu); margin: 0 0 10px; }
.dv-xem { color: var(--xanh); font-weight: 500; font-size: 12.5px; }

/* Mã làm việc */
.o-ma input { max-width: 340px; font-size: 16px; letter-spacing: .05em; text-transform: uppercase; font-weight: 600; }
.tt-ma { font-size: 13px; color: var(--chu-phu); }
.tt-ma.dung { color: var(--xanh); font-weight: 600; }
.tt-ma.loi { color: var(--chinh); font-weight: 600; }