:root {
  --do-do: #7a1f2b;
  --do-do-dam: #5a1620;
  --do-do-nhat: #c1565e;
  --nen: #f7f2ef;
  --nen-dam: #f0e7e3;
  --chu: #2a1c1c;
  --chu-phu: #5d4a4a;
  --vien: #ead8d3;
  --bong: 0 20px 45px rgba(55, 18, 22, 0.16);
  --goc: 20px;
}

html {
  font-size: 16px;
}

body.giao-dien {
  font-family: "Manrope", sans-serif;
  color: var(--chu);
  background:
    radial-gradient(70% 60% at 20% 0%, rgba(122, 31, 43, 0.15), transparent 60%),
    radial-gradient(60% 50% at 80% 20%, rgba(193, 86, 94, 0.2), transparent 55%),
    var(--nen);
  min-height: 100vh;
}

h1, h2, .thuong-hieu, .tieu-de-lon {
  font-family: "Playfair Display", serif;
}

.topbar {
  display: flex;
  align-items: center;
  padding: 12px 0;
}

.thanh-dau {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(247, 242, 239, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--vien);
}

.thuong-hieu {
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--do-do-dam);
}

.quan-tri {
  display: flex;
  min-height: calc(100vh - 72px);
}

.sidebar {
  width: 240px;
  background: linear-gradient(180deg, #3a141a 0%, #1f1112 100%);
  color: #f5e9e6;
  padding: 24px 20px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  gap: 24px;
  display: flex;
  flex-direction: column;
}

.sidebar-brand a {
  color: #f5e9e6;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.5px;
  font-size: 1.05rem;
  display: block;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.brand-mini {
  display: none;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 700;
}

.menu-danh-sach {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar-menu {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 6px;
}

.menu-muc {
  color: #f5e9e6;
  text-decoration: none;
  font-weight: 600;
  padding: 10px 12px;
  border-radius: 10px;
  background: transparent;
  display: flex;
  align-items: center;
  gap: 10px;
}

.menu-cha {
  padding-right: 10px;
}

.menu-caret {
  margin-left: auto;
  font-size: 0.8rem;
  opacity: 0.7;
}

.menu-con {
  display: none;
  flex-direction: column;
  gap: 6px;
  margin-left: 18px;
  padding-left: 12px;
  border-left: 1px solid rgba(245, 233, 230, 0.2);
}

.menu-con.mo {
  display: flex;
}

.menu-con .menu-muc {
  font-weight: 500;
  padding: 8px 10px;
}

.menu-muc:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.menu-icon {
  font-size: 1.05rem;
  width: 24px;
  text-align: center;
}

.menu-text {
  white-space: nowrap;
}

.menu-nhom {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 10px;
}

.menu-tieu-de {
  font-size: 0.75rem;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: rgba(245, 233, 230, 0.6);
  padding: 6px 12px 2px;
}

.menu-muc[data-tooltip] {
  position: relative;
}

.sidebar-thu-gon .menu-muc[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 54px;
  top: 50%;
  transform: translateY(-50%);
  background: #2a1c1c;
  color: #f5e9e6;
  padding: 6px 10px;
  border-radius: 8px;
  font-size: 0.8rem;
  white-space: nowrap;
  box-shadow: var(--bong);
}

.offcanvas-nen-toi {
  background: linear-gradient(180deg, #3a141a 0%, #1f1112 100%);
  color: #f5e9e6;
}

.offcanvas-nen-toi .offcanvas-title,
.offcanvas-nen-toi .menu-muc,
.offcanvas-nen-toi .sidebar-brand a,
.offcanvas-nen-toi .chu-phu {
  color: #f5e9e6;
}

.offcanvas-nen-toi .btn-close {
  filter: invert(1);
}

.offcanvas-nen-toi .menu-muc:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.sidebar-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: rgba(245, 233, 230, 0.7);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 12px;
}

.btn-thu-gon {
  border: 1px solid rgba(245, 233, 230, 0.4);
  color: #f5e9e6;
  background: transparent;
  padding: 4px 8px;
}

.btn-thu-gon:hover {
  background: rgba(255, 255, 255, 0.1);
}

.noi-dung-chinh {
  flex: 1;
  padding: 24px 0;
}

.btn-nguoi-dung {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  border: 1px solid var(--vien);
  border-radius: 999px;
  padding: 6px 12px;
}

.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--do-do);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.ten-nguoi-dung {
  font-weight: 600;
  color: var(--chu);
}

.sidebar-thu-gon .sidebar {
  width: 72px;
  padding: 24px 8px;
}

.sidebar-thu-gon .menu-muc {
  text-align: center;
  font-size: 0.8rem;
  padding: 10px 6px;
}

.sidebar-thu-gon .btn-thu-gon {
  transform: rotate(180deg);
}

.sidebar-thu-gon .sidebar-brand a {
  font-size: 0.75rem;
  text-align: center;
}

.sidebar-thu-gon .sidebar-footer span {
  display: none;
}

.sidebar-thu-gon .brand-full {
  display: none;
}

.sidebar-thu-gon .brand-mini {
  display: inline-block;
}

.sidebar-thu-gon .menu-text {
  display: none;
}

.sidebar-thu-gon .menu-icon {
  width: 100%;
}

.sidebar-thu-gon .sidebar-menu {
  align-items: center;
}

.sidebar-thu-gon .menu-tieu-de {
  display: none;
}

.sidebar-thu-gon .sidebar-menu .menu-muc {
  width: 100%;
}

.sidebar-thu-gon .menu-caret {
  display: none;
}

.btn-do-do {
  background: var(--do-do);
  color: #fff;
  border: none;
  box-shadow: var(--bong);
}

.btn-do-do:hover {
  background: var(--do-do-dam);
  color: #fff;
}

.btn-vien-do {
  border: 1px solid var(--do-do);
  color: var(--do-do);
  background: transparent;
}

.btn-vien-do:hover {
  background: var(--do-do);
  color: #fff;
}

.btn-toi-noi {
  border: 1px solid rgba(245, 233, 230, 0.6);
  color: #f5e9e6;
  background: rgba(122, 31, 43, 0.12);
}

.btn-toi-noi:hover {
  background: rgba(122, 31, 43, 0.35);
  color: #fff;
}

.nhom-hanh-dong {
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

@media (max-width: 991px) {
  .quan-tri {
    flex-direction: column;
  }

  .noi-dung-chinh {
    padding-top: 12px;
  }
}

.the-tinh-nang {
  background: #fff;
  border-radius: 16px;
  padding: 16px;
  border: 1px solid var(--vien);
  min-height: 160px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.the-tinh-nang:hover {
  transform: translateY(-4px);
  box-shadow: var(--bong);
}

.the-tieu-de {
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--do-do);
}

.so-lon {
  font-size: 2rem;
  font-weight: 700;
  color: var(--do-do-dam);
}

.bang-du-lieu th {
  color: var(--do-do-dam);
  font-weight: 600;
}

.bang-du-lieu td {
  vertical-align: middle;
}

.footer-do {
  border-top: 1px solid var(--vien);
  background: rgba(247, 242, 239, 0.9);
  padding: 16px 0;
  color: var(--chu-phu);
}

.noi-dung-trang {
  padding: 24px 0 8px;
}

.the-tinh-nang-cho {
  opacity: 0.7;
}

.bo-loc-form {
  border: 1px solid var(--vien);
  background: rgba(255, 255, 255, 0.94);
}

.bo-loc-nang-cao {
  border-top: 1px dashed var(--vien);
  padding-top: 12px;
}

.bo-loc-nang-cao summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--do-do-dam);
  list-style: none;
}

.bo-loc-nang-cao summary::marker {
  display: none;
}

.bo-loc-nang-cao summary::after {
  content: "▼";
  font-size: 0.75rem;
  margin-left: 8px;
}

.bo-loc-nang-cao[open] summary::after {
  content: "▲";
}

.phan-trang .page-link {
  color: var(--do-do-dam);
}

.phan-trang .page-item.active .page-link {
  background: var(--do-do-dam);
  border-color: var(--do-do-dam);
  color: #fff;
}

.qr-khung {
  background: #140b0c;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(245, 233, 230, 0.2);
  aspect-ratio: 3 / 4;
}

.qr-khung #qr-reader {
  width: 100%;
  height: 100%;
}

.qr-khung video {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover;
}

@media (min-width: 992px) {
  .hero {
    padding: 56px 0 12px;
  }

  .bang-tom-tat {
    transform: translateY(10px);
  }
}