/* =====================================================================
   QLHD – Giao diện hiện đại, màu sắc sinh động, phong cách Enterprise
   ===================================================================== */
:root {
  --nen: #f8fafc;
  --nen-noidung: #f1f5f9;
  --the: #ffffff;
  --vien: #e2e8f0;
  --vien-dam: #cbd5e1;
  --vien-o: #94a3b8;
  --chu: #0f172a;
  --chu-phu: #64748b;
  --nhan: #0284c7;
  --nhan-dam: #0369a1;
  --nhan-nhat: #e0f2fe;

  --ok-nen: #ecfdf5; --ok-chu: #047857; --ok-vien: #a7f3d0;
  --warn-nen: #fffbeb; --warn-chu: #b45309; --warn-vien: #fde68a;
  --danger-nen: #fef2f2; --danger-chu: #b91c1c; --danger-vien: #fecaca;
  --info-nen: #f0f9ff; --info-chu: #0369a1; --info-vien: #bae6fd;
  --purple-nen: #faf5ff; --purple-chu: #7e22ce; --purple-vien: #e9d5ff;
  --muted-nen: #f1f5f9; --muted-chu: #64748b;

  --bo-goc: 6px;
  --bo-the: 10px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI Variable Text", "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --font-tieude: -apple-system, BlinkMacSystemFont, "Segoe UI Variable Display", "Segoe UI", Roboto, sans-serif;
  --font-ma: "Cascadia Mono", Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { background: var(--nen); color: var(--chu); font-family: var(--font); font-size: 14px; line-height: 1.45; }
a { color: var(--nhan); text-decoration: none; }
a:hover { color: var(--nhan-dam); text-decoration: underline; }
h1:focus { outline: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }

/* ---------------- khung ---------------- */
.khung { min-height: 100vh; display: flex; flex-direction: column; background: var(--nen); }
.dau {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  background: #ffffff;
  border-bottom: 1px solid var(--vien);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
  position: sticky;
  top: 0;
  z-index: 30;
}
.thuong-hieu {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--chu);
  text-decoration: none;
  font-size: 13.5px;
  flex: 1;
  min-width: 0;
}
.thuong-hieu:hover { color: var(--nhan); text-decoration: none; }
.logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
  box-shadow: 0 3px 8px rgba(37, 99, 235, 0.3);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  transition: transform 0.2s ease;
}
.thuong-hieu:hover .logo { transform: scale(1.05); }
.dau-phai { display: flex; align-items: center; gap: 10px; }
.nguoi-dung {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 10px;
  border-radius: 20px;
  background: #f8fafc;
  border: 1px solid var(--vien);
}
.nguoi-dung .ten { display: block; font-size: 13px; font-weight: 600; line-height: 1.2; color: #1e293b; }
.avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  color: #ffffff;
  font-size: 12px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  box-shadow: 0 2px 5px rgba(99, 102, 241, 0.3);
}
.than { display: flex; flex: 1; min-height: 0; }

/* ---------------- thanh bên điều hướng (Sidebar) ---------------- */
.dieu-huong {
  width: 250px;
  flex: none;
  padding: 12px 10px 24px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  position: sticky;
  top: 53px;
  height: calc(100vh - 53px);
  overflow-y: auto;
  background: #ffffff;
  border-right: 1px solid var(--vien);
}
.dieu-huong .gian { flex: 1; }
.muc {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 12px;
  height: 38px;
  border-radius: 8px;
  color: #475569;
  text-decoration: none;
  border: 0;
  background: transparent;
  width: 100%;
  cursor: pointer;
  text-align: left;
  font-weight: 500;
  transition: all 0.15s ease;
}
.muc:hover {
  background: #f1f5f9;
  color: #0f172a;
  text-decoration: none;
  transform: translateX(2px);
}
.muc.active {
  background: linear-gradient(90deg, #eff6ff 0%, #f0fdf4 100%);
  color: #1d4ed8;
  font-weight: 600;
  border-left: 3.5px solid #2563eb;
  padding-left: 9px;
  box-shadow: 0 1px 3px rgba(37, 99, 235, 0.08);
}
.muc .gian { flex: 1; }
.muc-form { margin: 0; }

/* Màu sắc biểu tượng từng menu điều hướng */
.muc[href="/"] .icon { color: #0284c7; }
.muc[href="/tim-hang"] .icon { color: #0d9488; }
.muc[href="/de-nghi"] .icon { color: #6366f1; }
.muc[href="/don-dat-hang"] .icon { color: #10b981; }
.muc[href="/hop-dong"] .icon { color: #2563eb; }
.muc[href="/kho"] .icon { color: #f59e0b; }
.muc[href="/du-bao-ton"] .icon { color: #06b6d4; }
.muc[href="/bao-cao"] .icon { color: #8b5cf6; }
.muc[href="/danh-muc"] .icon { color: #64748b; }
.muc[href="/canh-bao"] .icon { color: #ef4444; }
.muc[href="/nguoi-dung"] .icon { color: #ec4899; }
.muc[href="/cai-dat"] .icon { color: #475569; }
.muc[href="/doi-mat-khau"] .icon { color: #f59e0b; }
.muc-form button.muc .icon { color: #e11d48; }

.so-dem {
  min-width: 20px;
  height: 20px;
  padding: 0 7px;
  border-radius: 10px;
  background: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.3);
}
.so-dem.cam {
  background: linear-gradient(135deg, #f97316 0%, #dc2626 100%);
  box-shadow: 0 2px 4px rgba(220, 38, 38, 0.3);
}
.noi-dung {
  flex: 1;
  min-width: 0;
  background: var(--nen-noidung);
  padding: 24px 30px 48px;
}
.chi-dien-thoai { display: none !important; }

/* ---------------- trang ---------------- */
.trang { display: flex; flex-direction: column; gap: 18px; }
.dau-trang { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 12px; }
h1 { margin: 0; font-family: var(--font-tieude); font-size: 26px; font-weight: 700; color: #0f172a; line-height: 1.25; }
h2 { margin: 0; font-size: 16px; font-weight: 700; color: #1e293b; }
h3 { margin: 0; font-size: 14px; font-weight: 700; color: #334155; }
.phu { color: var(--chu-phu); }
.nho-chu { font-size: 12px; }
.mo-ta { margin: 4px 0 0; color: var(--chu-phu); font-size: 13.5px; }
.ma { font-family: var(--font-ma); font-size: 12.5px; font-weight: 500; }
.so { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.dam { font-weight: 600; }
.nowrap { white-space: nowrap; }
.dang-tai { padding: 40px; color: var(--chu-phu); text-align: center; font-size: 15px; }
.xanh { color: #059669; } .do { color: #dc2626; } .cam { color: #d97706; }

/* ---------------- thẻ (Card) ---------------- */
.the {
  background: var(--the);
  border: 1px solid var(--vien);
  border-radius: var(--bo-the);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
  overflow: hidden;
}
.the-dau {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 12px 18px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  border-bottom: 1px solid var(--vien);
}
.the-than { padding: 18px; }

/* ---------------- KPI cards nổi bật ---------------- */
.luoi-kpi {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}
.kpi {
  background: var(--the);
  border: 1px solid var(--vien);
  border-top: 3.5px solid #0284c7;
  border-radius: var(--bo-the);
  padding: 16px 18px;
  text-decoration: none;
  color: var(--chu);
  display: block;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: all 0.2s ease;
  position: relative;
}
a.kpi:hover {
  border-color: #cbd5e1;
  border-top-color: #0284c7;
  transform: translateY(-2px);
  box-shadow: 0 8px 16px -4px rgba(2, 132, 199, 0.15);
  text-decoration: none;
  color: var(--chu);
}
.kpi .nhan { font-size: 12.5px; font-weight: 500; color: #64748b; }
.kpi .gia-tri {
  font-size: 28px;
  font-weight: 700;
  margin-top: 4px;
  line-height: 1.2;
  color: #0f172a;
}
.kpi .gia-tri small { font-size: 13px; font-weight: 400; color: var(--chu-phu); }

.kpi.warn {
  border-top-color: #f59e0b;
  background: linear-gradient(180deg, #fffdf5 0%, #ffffff 40%);
}
.kpi.warn .gia-tri { color: #d97706; }
a.kpi.warn:hover {
  border-top-color: #d97706;
  box-shadow: 0 8px 16px -4px rgba(245, 158, 11, 0.2);
}

.kpi.danger {
  border-top-color: #ef4444;
  background: linear-gradient(180deg, #fef8f8 0%, #ffffff 40%);
}
.kpi.danger .gia-tri { color: #dc2626; }
a.kpi.danger:hover {
  border-top-color: #dc2626;
  box-shadow: 0 8px 16px -4px rgba(239, 68, 68, 0.2);
}

.hai-cot { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-start; }
.hai-cot > .chinh { flex: 999 1 560px; min-width: 0; }
.hai-cot > .ben { flex: 1 1 320px; max-width: 440px; min-width: 0; }
.hai-cot > .ben.rong { max-width: 520px; }

/* ---------------- nút (Buttons) ---------------- */
.nut {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 34px;
  padding: 0 14px;
  border-radius: var(--bo-goc);
  border: 1px solid var(--vien-dam);
  background: #ffffff;
  color: #334155;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  transition: all 0.15s ease;
}
.nut:hover {
  background: #f8fafc;
  color: #0f172a;
  border-color: #94a3b8;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.08);
}
.nut:active { transform: translateY(0); box-shadow: none; }
.nut:disabled { background: #f1f5f9; color: #94a3b8; border-color: var(--vien); cursor: not-allowed; transform: none; box-shadow: none; }

.nut-chinh {
  background: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
  border-color: #1d4ed8;
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.28);
}
.nut-chinh:hover {
  background: linear-gradient(135deg, #0369a1 0%, #1d4ed8 100%);
  color: #ffffff;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.38);
}
.nut-chinh:disabled { background: #cbd5e1; border-color: #cbd5e1; color: #ffffff; }

.nut-nguy { color: #dc2626; border-color: #fca5a5; background: #ffffff; }
.nut-nguy:hover { background: #fee2e2; border-color: #f87171; color: #b91c1c; }

.nut-nhe { border-color: transparent; background: transparent; box-shadow: none; }
.nut-nhe:hover { background: #f1f5f9; box-shadow: none; }

.nut.nho, .nut-icon.nho { height: 28px; padding: 0 10px; font-size: 12.5px; }
.nut-icon {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 0;
  background: transparent;
  border-radius: var(--bo-goc);
  cursor: pointer;
  color: #475569;
  transition: all 0.15s ease;
}
.nut-icon:hover { background: #f1f5f9; color: #0f172a; }
.nut-icon.nho { width: 28px; padding: 0; }
.nhom-nut { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

.cham {
  position: absolute;
  top: 3px;
  right: 2px;
  min-width: 17px;
  height: 17px;
  padding: 0 4px;
  border-radius: 9px;
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 4px rgba(220, 38, 38, 0.4);
}

/* ---------------- ô nhập & bộ lọc ---------------- */
.o-nhap, .o-chon, .o-van-ban {
  height: 34px;
  padding: 0 11px;
  border: 1px solid var(--vien-dam);
  border-radius: var(--bo-goc);
  background: #ffffff;
  width: 100%;
  min-width: 0;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.o-van-ban { height: auto; min-height: 64px; padding: 8px 11px; resize: vertical; }
.o-nhap:hover, .o-chon:hover { border-color: #94a3b8; }
.o-nhap:focus, .o-chon:focus, .o-van-ban:focus {
  outline: none;
  border-color: #0284c7;
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}
.o-nhap.so-o { text-align: right; }
.o-nhap.loi { border-color: #ef4444; background: #fff8f8; }
.o-nhap:disabled, .o-chon:disabled { background: #f8fafc; color: #94a3b8; }

.o-tim {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  border: 1px solid var(--vien-dam);
  border-radius: var(--bo-goc);
  padding: 0 11px;
  height: 36px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.o-tim:focus-within {
  border-color: #0284c7;
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}
.o-tim input { border: 0; background: transparent; flex: 1; height: 32px; min-width: 0; }
.o-tim input:focus { outline: none; }

.truong { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.truong > label, .truong > .nhan-truong { font-size: 13px; font-weight: 600; color: #334155; }
.truong .goi-y { font-size: 12px; color: var(--chu-phu); }
.luoi-form { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px 16px; }
.luoi-form .rong-2 { grid-column: span 2; }
.luoi-form .rong-het { grid-column: 1 / -1; }
.thanh-loc { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px; padding: 14px 18px; }
.thanh-loc .truong { min-width: 140px; }
.thanh-loc .truong.rong { flex: 1 1 220px; }
.chon-o { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; min-height: 32px; }
.chon-o input { width: 18px; height: 18px; accent-color: var(--nhan); margin: 0; }
.an-nhan { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* ---------------- bảng (Table) hiện đại ---------------- */
.bang-cuon { overflow: auto; }
.bang-cuon.cao { max-height: 64vh; }
table.bang { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.bang th {
  text-align: left;
  font-weight: 600;
  color: #475569;
  padding: 10px 12px;
  background: #f8fafc;
  border-bottom: 2px solid var(--vien);
  position: sticky;
  top: 0;
  z-index: 1;
  white-space: nowrap;
}
table.bang td {
  padding: 10px 12px;
  border-bottom: 1px solid #f1f5f9;
  vertical-align: middle;
  transition: background-color 0.1s ease;
}
table.bang tr:last-child td { border-bottom: 0; }
table.bang tbody tr:hover td { background: #f0f7ff; }
table.bang tr.chon td { background: #e0f2fe; }
table.bang tr.mo td { color: #94a3b8; }
table.bang tr.bam { cursor: pointer; }
table.bang th:first-child, table.bang td:first-child { padding-left: 18px; }
table.bang th:last-child, table.bang td:last-child { padding-right: 18px; }
table.bang td.o-sua { padding-top: 4px; padding-bottom: 4px; }
table.bang tfoot td { font-weight: 600; background: #f8fafc; border-top: 2px solid var(--vien); }
.trong { padding: 40px; text-align: center; color: var(--chu-phu); font-size: 14px; }
.phan-trang {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 12px 18px;
  border-top: 1px solid var(--vien);
  font-size: 13px;
  color: var(--chu-phu);
  background: #fafbfc;
}

/* ---------------- nhãn trạng thái (Status Badges) ---------------- */
.nhan-tt {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
  line-height: 18px;
  letter-spacing: 0.02em;
}
.nhan-tt.ok { background: var(--ok-nen); color: var(--ok-chu); border: 1px solid var(--ok-vien); }
.nhan-tt.warn { background: var(--warn-nen); color: var(--warn-chu); border: 1px solid var(--warn-vien); }
.nhan-tt.danger { background: var(--danger-nen); color: var(--danger-chu); border: 1px solid var(--danger-vien); }
.nhan-tt.info { background: var(--info-nen); color: var(--info-chu); border: 1px solid var(--info-vien); }
.nhan-tt.purple { background: var(--purple-nen); color: var(--purple-chu); border: 1px solid var(--purple-vien); }
.nhan-tt.muted { background: var(--muted-nen); color: var(--muted-chu); border: 1px solid var(--vien); }
.vien-nhe {
  padding: 2px 9px;
  border: 1px solid var(--vien-dam);
  border-radius: 10px;
  font-size: 11.5px;
  font-weight: 500;
  white-space: nowrap;
  background: #f8fafc;
  color: #475569;
}

/* ---------------- thanh thông tin (InfoBar) ---------------- */
.infobar {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 13.5px;
  border: 1px solid;
}
.infobar .icon { flex: none; margin-top: 1px; }
.infobar.ok { background: var(--ok-nen); border-color: var(--ok-vien); color: var(--ok-chu); }
.infobar.warn { background: var(--warn-nen); border-color: var(--warn-vien); color: var(--warn-chu); }
.infobar.danger { background: var(--danger-nen); border-color: var(--danger-vien); color: var(--danger-chu); }
.infobar.info { background: var(--info-nen); border-color: var(--info-vien); color: var(--info-chu); }

/* ---------------- tab ---------------- */
.tabs { display: flex; flex-wrap: wrap; gap: 4px; border-bottom: 2px solid var(--vien); }
.tab {
  position: relative;
  height: 40px;
  padding: 0 16px;
  border: 0;
  background: transparent;
  cursor: pointer;
  color: var(--chu-phu);
  font-size: 14px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.15s ease;
}
.tab:hover { color: var(--chu); background: #f1f5f9; border-radius: var(--bo-goc) var(--bo-goc) 0 0; }
.tab.chon { color: var(--nhan); font-weight: 600; }
.tab.chon::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: -2px;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, #0284c7, #2563eb);
}
.tab .dem {
  padding: 1px 7px;
  border-radius: 10px;
  background: #e2e8f0;
  color: #334155;
  font-size: 11px;
  font-weight: 700;
}

/* ---------------- danh sách thẻ chọn ---------------- */
.ds-the { display: flex; flex-direction: column; gap: 10px; }
.the-chon {
  text-align: left;
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--bo-the);
  border: 1px solid var(--vien);
  background: #fff;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 13.5px;
  transition: all 0.15s ease;
}
.the-chon:hover { border-color: var(--nhan); box-shadow: 0 2px 8px rgba(2, 132, 199, 0.1); }
.the-chon.chon {
  border-color: #0284c7;
  background: #f0f9ff;
  box-shadow: 0 0 0 1px #0284c7;
}
.the-chon .dong1 { display: flex; justify-content: space-between; gap: 8px; width: 100%; }

/* ---------------- hộp thoại (Modal) ---------------- */
.lop-phu {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(2px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.hop-thoai {
  background: #ffffff;
  border: 1px solid var(--vien);
  border-radius: 12px;
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.25);
  width: min(560px, 100%);
  max-height: calc(100vh - 32px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.hop-thoai.rong { width: min(960px, 100%); }
.hop-thoai.rat-rong { width: min(1240px, 100%); }
.hop-thoai-than {
  padding: 24px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: #fff;
}
.hop-thoai-than h2 { font-size: 20px; }
.hop-thoai-chan {
  padding: 14px 24px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
  border-top: 1px solid var(--vien);
  background: #f8fafc;
}

/* ---------------- toast & thông báo ---------------- */
.khu-toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: min(440px, calc(100vw - 32px));
}
.toast {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  border-radius: var(--bo-the);
  background: #ffffff;
  border: 1px solid var(--vien);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.12);
  font-size: 13.5px;
}
.toast > span { flex: 1; padding-top: 1px; }
.toast.ok .icon { color: #059669; }
.toast.danger .icon { color: #dc2626; }
.toast.warn .icon { color: #d97706; }
.toast.danger { border-color: var(--danger-vien); }

.chuong-wrap { position: relative; }
.lop-phu-trong { position: fixed; inset: 0; z-index: 40; }
.hop-tb {
  position: absolute;
  right: 0;
  top: 44px;
  width: 390px;
  max-width: calc(100vw - 24px);
  max-height: 72vh;
  overflow: auto;
  background: #ffffff;
  border: 1px solid var(--vien);
  border-radius: 12px;
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.18);
  z-index: 41;
}
.hop-tb-dau {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 1px solid var(--vien);
  position: sticky;
  top: 0;
  background: #ffffff;
}
.tb-dong {
  display: flex;
  flex-direction: column;
  gap: 3px;
  width: 100%;
  text-align: left;
  padding: 12px 16px;
  border: 0;
  border-bottom: 1px solid #f1f5f9;
  background: #fff;
  cursor: pointer;
  transition: background 0.15s ease;
}
.tb-dong:hover { background: #f8fafc; }
.tb-dong.moi { background: #f0f9ff; border-left: 3px solid #0284c7; }
.tb-tieu-de { font-weight: 600; font-size: 13.5px; color: #0f172a; }
.tb-noi-dung { font-size: 13px; color: #475569; }
.tb-gio { font-size: 11px; color: #94a3b8; }

/* ---------------- chip ---------------- */
.chip {
  height: 30px;
  padding: 0 12px;
  border-radius: 15px;
  border: 1px solid var(--vien-dam);
  background: #fff;
  cursor: pointer;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}
.chip:hover { background: #f1f5f9; }
.chip.chon {
  background: linear-gradient(135deg, #0284c7, #2563eb);
  border-color: #2563eb;
  color: #fff;
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.3);
}

/* ---------------- thanh tiến độ (Progress bar) ---------------- */
.thanh {
  flex: 1;
  height: 7px;
  border-radius: 4px;
  background: #e2e8f0;
  min-width: 50px;
  overflow: hidden;
}
.thanh > span {
  display: block;
  height: 7px;
  border-radius: 4px;
  background: linear-gradient(90deg, #10b981, #059669);
}
.thanh > span.cam { background: linear-gradient(90deg, #f59e0b, #ea580c); }
.thanh > span.xam { background: #94a3b8; }
.thanh > span.xanh-duong { background: linear-gradient(90deg, #0284c7, #2563eb); }

/* ---------------- đăng nhập ---------------- */
.trang-dang-nhap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: linear-gradient(135deg, #e0f2fe 0%, #ede9fe 50%, #f0fdf4 100%);
}
.hop-dang-nhap {
  width: min(420px, 100%);
  background: #fff;
  border: 1px solid var(--vien);
  border-radius: 14px;
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.15);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.hop-dang-nhap .nut { height: 38px; font-size: 14.5px; }

/* ---------------- in ấn ---------------- */
.ban-in { background: #fff; color: #000; font-family: "Times New Roman", serif; font-size: 13pt; padding: 24px; max-width: 1100px; margin: 0 auto; }
.ban-in table { width: 100%; border-collapse: collapse; }
.ban-in table.ke td, .ban-in table.ke th { border: 1px solid #000; padding: 4px 6px; vertical-align: top; }
.ban-in .giua { text-align: center; }
.chi-man-hinh { }
@media print {
  .chi-man-hinh, .dau, .dieu-huong, .khu-toast { display: none !important; }
  .noi-dung { border: 0; padding: 0; background: #fff; }
  body { background: #fff; }
  .ban-in { padding: 0; }
  @page { size: A4 landscape; margin: 12mm; }
}

/* ---------------- điện thoại & màn hình nhỏ ---------------- */
@media (max-width: 860px) {
  .chi-dien-thoai { display: inline-flex !important; }
  .an-dien-thoai { display: none !important; }
  .dieu-huong {
    position: fixed;
    left: 0;
    top: 53px;
    bottom: 0;
    height: auto;
    background: #ffffff;
    z-index: 50;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
    box-shadow: 6px 0 20px rgba(0, 0, 0, 0.15);
  }
  .dieu-huong.mo { transform: none; }
  .noi-dung { padding: 16px; border-radius: 0; border-left: 0; }
  h1 { font-size: 22px; }
  .luoi-form .rong-2 { grid-column: 1 / -1; }
}

/* thanh báo lỗi kết nối Blazor */
#blazor-error-ui.loi-ket-noi {
  position: fixed;
  left: 20px;
  bottom: 20px;
  z-index: 300;
  gap: 12px;
  align-items: center;
  padding: 12px 16px;
  border-radius: 10px;
  background: var(--danger-nen);
  border: 1px solid var(--danger-vien);
  color: var(--danger-chu);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.15);
}
#blazor-error-ui .dismiss { cursor: pointer; }

/* cột tên không bị bóp hẹp trong bảng nhiều cột */
.cot-ten { min-width: 220px; }
.cot-ten-ngan { min-width: 160px; }