/* Phong cách khoa học – kỹ thuật (Bạn chốt 27/9/2026): menu dọc, thẻ trắng bo góc, ô biểu tượng màu nhạt,
   số liệu lớn; không dùng thư viện ngoài (trừ phông Be Vietnam Pro). */
:root {
  --nen: #f4f6fb; --mat: #ffffff; --vien: #e3e8f0; --vien-dam: #cfd7e3;
  --chu: #0f172a; --xam: #64748b; --xam-nen: #eef1f6;
  --xanh: #0f3b6b; --xanh-sang: #2563eb; --xanh-nhat: #eaf1fe;
  --la: #16a34a; --la-dam: #15803d; --la-nhat: #e8f7ee;
  --do: #c62828; --do-nhat: #fdecec; --vang: #a16207; --vang-nen: #fef6dc;
  --tim: #7c3aed; --tim-nhat: #f1ebfe; --cam: #ea580c; --cam-nhat: #fff0e6; --ngoc: #0d9488; --ngoc-nhat: #e2f6f3;
  --xanh-la: #15803d; --xanh-la-nen: #e8f7ee;
  --bong: 0 1px 2px rgba(15,23,42,.04), 0 4px 16px rgba(15,23,42,.06);
  --bo: 14px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 16px/1.6 "Be Vietnam Pro", "Segoe UI", Roboto, "Noto Sans", Arial, sans-serif; color: var(--chu); background: var(--nen); }
a { color: var(--xanh-sang); }
h1 { font-size: 28px; line-height: 1.25; margin: 4px 0 16px; color: var(--chu); font-weight: 800; letter-spacing: -.01em; }
h2 { font-size: 19px; margin: 22px 0 12px; color: var(--chu); font-weight: 700; }
.mo { color: var(--xam); font-size: 14px; }

/* ------------------------------------------------------------------ Bố cục: menu dọc + vùng chính */
.bo-cuc { display: grid; grid-template-columns: 280px 1fr; min-height: 100vh; }
.thanh-ben { background: var(--mat); border-right: 1px solid var(--vien); position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; padding: 20px 16px; overflow-y: auto; }
.thuong-hieu { display: flex; gap: 12px; align-items: center; text-decoration: none; color: var(--chu); padding: 4px 6px 18px; }
.thuong-hieu b { display: block; font-size: 16px; line-height: 1.25; font-weight: 800; }
.thuong-hieu small { display: block; font-size: 12px; color: var(--xam); letter-spacing: .04em; margin-top: 2px; }
.menu-doc { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.menu-doc .nhom { font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: #94a3b8; margin: 16px 12px 6px; }
.menu-doc a { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 12px; text-decoration: none; color: #334155; font-weight: 500; font-size: 15px; }
.menu-doc a svg { color: #64748b; flex-shrink: 0; }
.menu-doc a:hover { background: var(--xam-nen); }
.menu-doc a.dang-mo { background: var(--mat); color: var(--chu); font-weight: 700; box-shadow: 0 2px 12px rgba(15,23,42,.10); }
.menu-doc a.dang-mo svg { color: var(--xanh-sang); }
.menu-doc .dem { margin-left: auto; font-style: normal; background: var(--do); color: #fff; font-size: 12px; font-weight: 700; border-radius: 10px; padding: 0 8px; line-height: 20px; }
.ben-duoi { border-top: 1px solid var(--vien); padding-top: 14px; margin-top: 14px; }
.the-nguoi { display: flex; gap: 10px; align-items: center; }
.the-nguoi b { display: block; font-size: 14px; }
.the-nguoi small { display: block; font-size: 12px; color: var(--xam); }
.avatar { width: 38px; height: 38px; border-radius: 12px; background: var(--xanh); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 800; flex-shrink: 0; }
.nut-nguoi { display: flex; justify-content: space-between; margin-top: 10px; font-size: 13px; }
.nut-nguoi a, .nut-nguoi button { color: var(--xam); text-decoration: none; display: inline-flex; gap: 4px; align-items: center; font-size: 13px; }
.nut-dang-nhap { display: flex; gap: 8px; align-items: center; justify-content: center; background: var(--xanh); color: #fff; border-radius: 12px; padding: 11px; text-decoration: none; font-weight: 600; }
.vung-chinh { min-width: 0; display: flex; flex-direction: column; }
.thanh-tren { display: flex; align-items: center; gap: 16px; padding: 14px 32px; background: rgba(255,255,255,.85); backdrop-filter: blur(6px); border-bottom: 1px solid var(--vien); position: sticky; top: 0; z-index: 20; }
.tt-don-vi b { display: block; font-size: 16px; font-weight: 700; }
.tt-don-vi small { display: block; font-size: 12px; color: var(--xam); }
.tim-nhanh { margin-left: auto; display: flex; align-items: center; gap: 8px; background: var(--xam-nen); border: 1px solid transparent; border-radius: 12px; padding: 0 12px; width: min(420px, 40vw); color: var(--xam); }
.tim-nhanh:focus-within { border-color: var(--xanh-sang); background: #fff; }
.tim-nhanh input { border: 0; background: transparent; padding: 10px 0; width: 100%; font-size: 14px; }
.tim-nhanh input:focus { outline: none; }
.nut-menu { display: none; background: none; border: 0; color: var(--chu); padding: 4px; }
main { flex: 1; width: 100%; max-width: 1440px; padding: 24px 32px 40px; }
footer.chan { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 16px 32px; border-top: 1px solid var(--vien); font-size: 13px; color: var(--xam); background: var(--mat); }
footer.chan b { color: var(--chu); }
footer.chan .chan-lk { display: flex; gap: 16px; }
@media (max-width: 1024px) {
  .bo-cuc { grid-template-columns: 1fr; }
  .thanh-ben { position: fixed; z-index: 50; left: 0; top: 0; width: 280px; transform: translateX(-100%); transition: transform .2s; box-shadow: 0 0 40px rgba(0,0,0,.2); }
  .thanh-ben.mo { transform: none; }
  .nut-menu { display: inline-flex; }
  .thanh-tren { padding: 12px 16px; }
  .tt-don-vi small { display: none; }
  main { padding: 18px 16px 32px; }
}
@media (max-width: 640px) { .tim-nhanh { display: none; } }

/* ------------------------------------------------------------------ Thành phần chung */
.the { background: var(--mat); border: 1px solid var(--vien); border-radius: var(--bo); padding: 20px 22px; margin-bottom: 18px; box-shadow: var(--bong); }
.luoi { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); margin-bottom: 18px; }
.chi-so { background: var(--mat); border: 1px solid var(--vien); border-radius: var(--bo); padding: 18px 20px; text-decoration: none; color: var(--xam); display: block; box-shadow: var(--bong); font-size: 14px; }
.chi-so b { display: block; font-size: 32px; font-weight: 800; color: var(--chu); line-height: 1.15; }
.chi-so.canh-bao b { color: var(--vang); } .chi-so.loi b { color: var(--do); } .chi-so.xam b { color: var(--xam); }
.hai-cot { display: grid; gap: 18px; grid-template-columns: 1fr 1fr; }
@media (max-width: 900px) { .hai-cot { grid-template-columns: 1fr; } }
table { border-collapse: separate; border-spacing: 0; width: 100%; background: var(--mat); border: 1px solid var(--vien); border-radius: 12px; overflow: hidden; }
th, td { border-bottom: 1px solid var(--vien); padding: 10px 12px; text-align: left; vertical-align: top; font-size: 14px; }
th { background: #f8fafc; font-weight: 700; color: #475569; font-size: 13px; }
tr:last-child td { border-bottom: 0; }
tr:hover td { background: #f8fafc; }
td.so, th.so { text-align: right; white-space: nowrap; }
.bang-cuon { overflow-x: auto; }
.nhan { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; white-space: nowrap; font-weight: 700; }
.nhan.ok { background: var(--la-nhat); color: var(--la-dam); }
.nhan.canh-bao { background: var(--vang-nen); color: var(--vang); }
.nhan.loi { background: var(--do-nhat); color: var(--do); }
.nhan.xam { background: var(--xam-nen); color: var(--xam); }
.nhan.chua-ro { background: var(--tim-nhat); color: var(--tim); }
.co { color: var(--do); font-weight: 700; }
.thanh { display: flex; align-items: center; gap: 10px; margin: 6px 0; font-size: 14px; }
.thanh span:first-child { width: 200px; flex-shrink: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.thanh i { display: block; height: 12px; background: linear-gradient(90deg, var(--xanh-sang), #60a5fa); border-radius: 6px; min-width: 3px; }
form.loc { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; }
form.loc label { font-size: 12px; color: var(--xam); display: flex; flex-direction: column; gap: 4px; font-weight: 600; }
input, select, textarea { font: inherit; font-size: 14px; padding: 8px 10px; border: 1px solid var(--vien-dam); border-radius: 10px; background: #fff; max-width: 100%; color: var(--chu); }
input:focus, select:focus, textarea:focus { outline: 2px solid #bfdbfe; border-color: var(--xanh-sang); }
textarea { width: 100%; min-height: 80px; }
.nut, button { display: inline-flex; align-items: center; gap: 6px; font: inherit; font-size: 14px; font-weight: 600; padding: 8px 16px; border-radius: 10px; border: 1px solid var(--xanh); background: var(--xanh); color: #fff; cursor: pointer; text-decoration: none; }
.nut:hover, button:hover { filter: brightness(1.1); }
.nut.phu, button.phu { background: #fff; color: var(--xanh); border-color: var(--vien-dam); }
.nut.nguy, button.nguy { background: var(--do); border-color: var(--do); }
button.lien-ket { background: none; border: 0; padding: 0; color: inherit; cursor: pointer; font-weight: 500; }
.bieu-mau { display: grid; grid-template-columns: 260px 1fr; gap: 12px 18px; align-items: start; }
.bieu-mau label { font-weight: 600; padding-top: 8px; font-size: 14px; }
.bieu-mau .goi-y { font-size: 12px; color: var(--xam); margin-top: 4px; }
.bieu-mau input[type=text], .bieu-mau input[type=date], .bieu-mau input[type=number], .bieu-mau select { width: 100%; max-width: 560px; }
@media (max-width: 700px) { .bieu-mau { grid-template-columns: 1fr; } }
.thong-bao { padding: 12px 16px; border-radius: 12px; margin-bottom: 14px; font-size: 14px; }
.thong-bao.ok { background: var(--la-nhat); color: var(--la-dam); }
.thong-bao.loi { background: var(--do-nhat); color: var(--do); }
dl.thong-tin { display: grid; grid-template-columns: 220px 1fr; gap: 8px 16px; margin: 0; font-size: 15px; }
dl.thong-tin dt { color: var(--xam); }
dl.thong-tin dd { margin: 0; }
@media (max-width: 700px) { dl.thong-tin { grid-template-columns: 1fr; } }
.chuoi { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.chuoi .mat { border: 1px solid var(--vien); border-radius: 12px; padding: 10px 12px; background: #fff; }
.chuoi .mat.hien-tai { border: 2px solid var(--xanh-sang); }
.dong-thoi-gian { border-left: 2px solid var(--vien); padding-left: 18px; margin-left: 6px; }
.dong-thoi-gian .muc { position: relative; margin-bottom: 14px; }
.dong-thoi-gian .muc::before { content: ""; position: absolute; left: -25px; top: 7px; width: 12px; height: 12px; border-radius: 50%; background: var(--xanh-sang); box-shadow: 0 0 0 3px #dbeafe; }
.ly-do { margin: 0; padding-left: 18px; color: var(--do); font-size: 13px; }
.dang-nhap { max-width: 420px; margin: 40px auto; }
.dang-nhap input { width: 100%; margin: 4px 0 12px; }
.hang-nut { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: 12px 0; }

/* ------------------------------------------------------------------ Trang chủ – tổng quan */
.tq-dau { position: relative; overflow: hidden; border-radius: 20px; padding: 32px 36px; color: #fff; margin-bottom: 22px;
  background: radial-gradient(circle at 85% 20%, rgba(56,189,248,.35), transparent 40%), linear-gradient(120deg, #0b2545 0%, #0f3b6b 55%, #0f766e 100%); box-shadow: var(--bong); }
.tq-dau::before { content: ""; position: absolute; inset: 0; opacity: .18;
  background-image: linear-gradient(rgba(255,255,255,.5) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.5) 1px, transparent 1px);
  background-size: 32px 32px; mask-image: linear-gradient(90deg, transparent 30%, #000); -webkit-mask-image: linear-gradient(90deg, transparent 30%, #000); }
.tq-dau > * { position: relative; }
.tq-duong-dan { font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: #93c5fd; font-weight: 700; margin: 0; }
.tq-dau h1 { color: #fff; font-size: clamp(24px, 3vw, 36px); margin: 8px 0 8px; max-width: 900px; }
.tq-dau p.tq-mo { color: #cbd5e1; margin: 0 0 20px; max-width: 760px; font-size: 16px; }
.tq-tim { display: flex; max-width: 680px; background: #fff; border-radius: 14px; padding: 6px; gap: 6px; }
.tq-tim input { flex: 1; border: 0; font-size: 15px; padding: 10px 12px; min-width: 0; }
.tq-tim input:focus { outline: none; }
.tq-tim button { background: var(--la); border-color: var(--la); border-radius: 10px; padding: 10px 20px; }
.tq-nut { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.tq-nut a { color: #e2e8f0; text-decoration: none; font-size: 14px; font-weight: 600; border: 1px solid rgba(255,255,255,.3); border-radius: 10px; padding: 7px 14px; }
.tq-nut a:hover { background: rgba(255,255,255,.1); }
.tq-so { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; margin-bottom: 22px; }
.tq-o { background: var(--mat); border: 1px solid var(--vien); border-radius: 18px; padding: 18px 20px; text-decoration: none; color: var(--xam); box-shadow: var(--bong); display: flex; flex-direction: column; gap: 6px; transition: transform .15s, box-shadow .15s; }
.tq-o:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(15,23,42,.10); }
.tq-o .ic { width: 46px; height: 46px; border-radius: 13px; display: flex; align-items: center; justify-content: center; margin-bottom: 8px; }
.tq-o span.nhan-o { font-size: 15px; font-weight: 600; color: #475569; }
.tq-o b { font-size: 34px; line-height: 1.05; font-weight: 800; color: var(--chu); letter-spacing: -.02em; }
.tq-o small { font-size: 13px; }
.mau-xanh .ic { background: var(--xanh-nhat); color: var(--xanh-sang); }
.mau-la .ic { background: var(--la-nhat); color: var(--la); }
.mau-cam .ic { background: var(--cam-nhat); color: var(--cam); }
.mau-tim .ic { background: var(--tim-nhat); color: var(--tim); }
.mau-ngoc .ic { background: var(--ngoc-nhat); color: var(--ngoc); }
.mau-do .ic { background: var(--do-nhat); color: var(--do); }
.mau-do b { color: var(--do); }
.tq-luoi { display: grid; grid-template-columns: 1.4fr 1fr; gap: 18px; margin-bottom: 18px; }
@media (max-width: 1100px) { .tq-luoi { grid-template-columns: 1fr; } }
.tq-luoi .the { margin-bottom: 0; }
.tq-tieu-de { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 12px; }
.tq-tieu-de h2 { margin: 0; }
.tq-tieu-de a { font-size: 14px; font-weight: 600; text-decoration: none; }
.tq-ds { display: flex; flex-direction: column; }
.tq-dong { display: grid; grid-template-columns: 1fr auto; gap: 4px 14px; padding: 12px 4px; border-bottom: 1px solid var(--vien); text-decoration: none; color: var(--chu); }
.tq-dong:last-child { border-bottom: 0; }
.tq-dong:hover { background: #f8fafc; }
.tq-dong .so { font-weight: 700; color: var(--xanh); font-size: 14px; }
.tq-dong .ten { grid-column: 1 / -1; font-weight: 600; font-size: 15px; }
.tq-dong .phu { grid-column: 1 / -1; font-size: 13px; color: var(--xam); }
.tq-cot { display: flex; align-items: flex-end; gap: 14px; height: 190px; padding: 10px 4px 0; }
.tq-cot a { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 6px; height: 100%; font-size: 13px; color: var(--xam); text-decoration: none; }
.tq-cot i { display: block; width: 100%; max-width: 56px; border-radius: 10px 10px 4px 4px; background: linear-gradient(180deg, #60a5fa, var(--xanh-sang)); min-height: 4px; }
.tq-cot b { color: var(--chu); font-size: 15px; }
.tq-viec { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.tq-viec li { border: 1px solid var(--vien); border-radius: 14px; padding: 14px 16px; display: flex; gap: 12px; align-items: flex-start; background: #fff; }
.tq-viec li.xong { background: #f8fafc; }
.tq-viec li.xong b { color: var(--xam); text-decoration: line-through; }
.tq-viec .dau { flex-shrink: 0; color: var(--vang); }
.tq-viec li.xong .dau { color: var(--la); }
.tq-viec b { display: block; font-size: 15px; }
.tq-viec span { font-size: 13px; color: var(--xam); display: block; }
.tq-viec a { font-size: 13px; font-weight: 700; text-decoration: none; }
.tq-buoc { list-style: none; counter-reset: b; padding: 0; margin: 12px 0 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; }
.tq-buoc li { counter-increment: b; position: relative; padding: 0 14px 0 0; }
.tq-buoc li::before { content: counter(b); display: flex; width: 34px; height: 34px; border-radius: 50%; background: var(--xanh-sang); color: #fff; font-weight: 800; align-items: center; justify-content: center; position: relative; z-index: 1; box-shadow: 0 0 0 4px #dbeafe; }
.tq-buoc li::after { content: ""; position: absolute; top: 17px; left: 34px; right: 0; height: 2px; background: #bfdbfe; }
.tq-buoc li:last-child::after { display: none; }
.tq-buoc b { display: block; margin: 12px 0 4px; font-size: 15px; }
.tq-buoc span { font-size: 13px; color: var(--xam); display: block; }
@media (max-width: 900px) { .tq-buoc { grid-template-columns: 1fr; gap: 16px; } .tq-buoc li::after { display: none; } }
.tq-lv { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.tq-lv span { background: var(--xam-nen); border-radius: 20px; padding: 5px 12px; font-size: 13px; font-weight: 600; color: #334155; }
.tq-lien-he { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
.tq-lien-he li { display: flex; gap: 10px; align-items: flex-start; }
.tq-lien-he svg { color: var(--xanh-sang); flex-shrink: 0; margin-top: 2px; }

@media print { .thanh-ben, .thanh-tren, .hang-nut, form.loc, footer.chan { display: none !important; } .bo-cuc { display: block; } body { background: #fff; } }
.tq-h3 { font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--xam); margin: 22px 0 10px; }
.tq-thanh-tt { display: flex; height: 14px; border-radius: 8px; overflow: hidden; gap: 2px; background: var(--xam-nen); }
.tq-thanh-tt span, .tq-chu-giai i { background: #94a3b8; }
.tq-thanh-tt .ok, .tq-chu-giai i.ok { background: var(--la); }
.tq-thanh-tt .canh-bao, .tq-chu-giai i.canh-bao { background: #eab308; }
.tq-thanh-tt .loi, .tq-chu-giai i.loi { background: var(--do); }
.tq-thanh-tt .xam, .tq-chu-giai i.xam { background: #94a3b8; }
.tq-thanh-tt .chua-ro, .tq-chu-giai i.chua-ro { background: #a78bfa; }
.tq-chu-giai { list-style: none; padding: 0; margin: 12px 0 0; display: flex; flex-direction: column; gap: 6px; font-size: 14px; }
.tq-chu-giai a { display: flex; align-items: center; gap: 10px; color: var(--chu); text-decoration: none; }
.tq-chu-giai a:hover { color: var(--xanh-sang); }
.tq-chu-giai i { width: 12px; height: 12px; border-radius: 4px; flex-shrink: 0; }
.tq-chu-giai b { margin-left: auto; }
.tq-dau.gon { padding: 24px 32px; }
.tq-dau.gon h1 { font-size: clamp(22px, 2.4vw, 28px); margin-bottom: 16px; }
@media (max-width: 640px) {
  .tq-dau { padding: 22px 18px; border-radius: 16px; }
  .tq-dau h1 { font-size: 23px; }
  .tq-dau p.tq-mo { font-size: 14px; }
  .tq-duong-dan { font-size: 11px; }
  .tq-nut a { padding: 6px 10px; font-size: 13px; }
  .tq-tim button { padding: 10px 14px; }
  .tq-so { grid-template-columns: 1fr 1fr; gap: 10px; }
  .tq-o { padding: 14px; }
  .tq-o b { font-size: 28px; }
  .tq-o .ic { width: 38px; height: 38px; }
  .tt-don-vi b { font-size: 14px; }
}