:root {
  --brand: #00adef;
  --brand-dark: #028fca;
  --brand-soft: #e9f8ff;
  --ink: #0f172a;
  --muted: #475569;
  --line: #e2e8f0;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
}

.tgdd-body {
  background:
    radial-gradient(circle at 0% 0%, #c9efff 0, transparent 28%),
    radial-gradient(circle at 100% 10%, #d8f5ff 0, transparent 32%),
    #f7fbfd;
  font-family: "Be Vietnam Pro", sans-serif;
  color: var(--ink);
}

.site-header {
  background: white;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 40;
}

.layout-shell {
  width: min(1480px, 100% - 48px);
  margin: 0 auto;
}

.top-wrap {
  min-height: 84px;
  display: grid;
  gap: 18px;
  grid-template-columns: 180px 1fr auto;
  align-items: center;
  transition: max-height 0.22s ease, opacity 0.16s ease, padding 0.2s ease, margin 0.2s ease, gap 0.2s ease;
  max-height: 120px;
  overflow: hidden;
}

.brand {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.brand-title {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.34rem;
  font-weight: 700;
  color: #032f3f;
  line-height: 1;
}

.brand-logo {
  width: auto;
  height: 42px;
  object-fit: cover;
  max-width: 180px;
}

.search-box {
  position: relative;
}

.search-box i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: #7c8ca0;
}

.search-box input {
  width: 100%;
  height: 44px;
  border: 1px solid #d8e7ef;
  border-radius: 12px;
  padding: 0 14px 0 40px;
  background: #f9fcfe;
  outline: none;
}

.search-box input:focus {
  border-color: #7dd9f7;
  box-shadow: 0 0 0 3px #dff4fd;
}

.quick-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.92rem;
}

.quick-meta a {
  color: #0f3551;
  text-decoration: none;
  font-weight: 600;
}

.quick-meta a i {
  color: var(--brand-dark);
  margin-right: 6px;
}

.menu-wrap {
  background: linear-gradient(90deg, #0ca8e2, #00adef 50%, #06b8f8);
}

.main-menu {
  min-height: 50px;
  display: flex;
  align-items: center;
  gap: 24px;
  overflow-x: auto;
}

.main-menu .menu-item {
  color: white;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0.96;
}

.main-menu .menu-item:hover {
  opacity: 1;
  text-decoration: underline;
}

.menu-logo {
  display: none;
  height: 34px;
  align-items: center;
  border-radius: 8px;
  background: #ffffff;
  padding: 4px 10px;
  flex: 0 0 auto;
}

.menu-logo-img {
  height: 22px;
  width: auto;
  object-fit: contain;
  display: block;
}

.menu-logo-title {
  font-size: 0.82rem;
  font-weight: 800;
  color: #0b6b97;
  line-height: 1;
  white-space: nowrap;
}

body.header-compact .top-wrap {
  min-height: 0;
  max-height: 0;
  gap: 0;
  opacity: 0.02;
  margin: 0;
  border: 0;
  padding-top: 0;
  padding-bottom: 0;
  pointer-events: none;
}

body.header-compact .menu-logo {
  display: inline-flex;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.45fr 1fr;
  gap: 24px;
}

.hero-main {
  background: linear-gradient(140deg, #0b374b, #075979 52%, #00adef);
  border-radius: 22px;
  color: white;
  padding: 42px;
  box-shadow: 0 25px 45px rgba(0, 69, 98, 0.2);
}

.hero-tag {
  display: inline-flex;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.16);
  margin-bottom: 14px;
}

.hero-main h1 {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  line-height: 1.15;
  margin-bottom: 12px;
}

.hero-main p {
  color: #d8f4ff;
  margin-bottom: 16px;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.btn-primary,
.btn-ghost {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 11px;
  font-size: 0.93rem;
  font-weight: 700;
  text-decoration: none;
  padding: 0 18px;
}

.btn-primary {
  color: #073448;
  background: white;
}

.btn-ghost {
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.44);
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.82rem;
  color: #e9f8ff;
}

.hero-points span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-side {
  display: grid;
  gap: 20px;
}

.hero-deal,
.hero-support {
  border-radius: 18px;
  padding: 22px;
  background: white;
  border: 1px solid #dceef7;
}

.hero-deal {
  background: linear-gradient(160deg, #f4fbff, #e8f7ff);
}

.hero-deal h3,
.hero-support h3 {
  font-size: 1.04rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.hero-deal p,
.hero-support p {
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.6;
}

.hero-deal a {
  display: inline-block;
  margin-top: 10px;
  font-weight: 700;
  color: #0373a2;
  text-decoration: none;
}

.category-strip {
  margin-top: 24px;
  background: white;
  border: 1px solid #e4eff5;
  border-radius: 16px;
  padding: 14px;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.category-strip a {
  min-height: 42px;
  border: 1px solid #e6f0f7;
  border-radius: 12px;
  color: #094764;
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  background: #fcfeff;
}

.category-strip a:hover {
  border-color: #7dd7f5;
  background: #f1faff;
}

.benefit-section {
  margin-top: 26px;
}

.benefit-head {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 14px;
  align-items: center;
  margin-bottom: 16px;
}

.benefit-head span {
  height: 1px;
  background: #d7e5ef;
}

.benefit-head h2 {
  margin: 0;
  font-size: clamp(1.2rem, 2.1vw, 2rem);
  font-weight: 800;
  color: #243445;
  text-align: center;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.benefit-card {
  border: 1px solid #d4e4ee;
  border-radius: 12px;
  background: #dbe7f0;
  padding: 24px 20px;
  text-align: center;
}

.benefit-card i {
  font-size: 3rem;
  color: #f39a2f;
  margin-bottom: 14px;
}

.benefit-card h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 800;
  color: #0f172a;
}

.benefit-card p {
  margin: 10px 0 0;
  color: #1f2f3d;
  font-size: 0.94rem;
  line-height: 1.55;
}

.section-block {
  margin-top: 34px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.section-head h2 {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.45rem;
  font-weight: 700;
}

.section-head a {
  font-size: 0.88rem;
  color: #03638d;
  text-decoration: none;
  font-weight: 700;
}

.product-grid,
.post-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.product-card,
.post-card {
  position: relative;
  background: white;
  border: 1px solid #ddebf3;
  border-radius: 17px;
  padding: 18px;
  box-shadow: 0 10px 25px rgba(25, 62, 82, 0.06);
}

.product-card img,
.post-card img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 14px;
}

.badge {
  position: absolute;
  top: 12px;
  left: 12px;
  height: 26px;
  padding: 0 10px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  font-size: 0.72rem;
  font-weight: 700;
  color: #065275;
  background: #c9f2ff;
}

.product-card h3,
.post-card h3 {
  font-size: 0.98rem;
  font-weight: 800;
  line-height: 1.4;
}

.product-title-link {
  color: inherit;
  text-decoration: none;
}

.post-card-link {
  display: block;
  color: inherit;
  text-decoration: none;
  height: 100%;
}

.product-title-link:hover {
  color: #03638d;
}

.product-card p,
.post-card p {
  margin-top: 8px;
  font-size: 0.87rem;
  color: #506273;
  min-height: 42px;
}

.product-foot {
  margin-top: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.product-foot strong {
  color: #e21d4a;
  font-size: 1.08rem;
}

.product-foot button {
  min-height: 38px;
  border: 0;
  border-radius: 10px;
  background: var(--brand);
  color: white;
  font-weight: 700;
  font-size: 0.84rem;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.product-foot button:hover {
  background: var(--brand-dark);
}

.product-foot-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-view-detail {
  min-height: 38px;
  border-radius: 10px;
  border: 1px solid #cde4ef;
  color: #0b5c80;
  text-decoration: none;
  font-size: 0.83rem;
  font-weight: 700;
  padding: 0 10px;
  display: inline-flex;
  align-items: center;
}

.btn-view-detail:hover {
  border-color: #87d1eb;
  background: #f2fbff;
}

.product-detail-page {
  margin-top: 4px;
}

.product-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  color: #516678;
  margin-bottom: 10px;
}

.product-breadcrumb a {
  color: #4d6477;
  text-decoration: none;
}

.product-breadcrumb a:hover {
  color: #0a6c97;
}

.product-detail-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 1.08fr) 0.62fr;
}

.product-gallery-card,
.product-main-info,
.side-card {
  background: #fff;
  border: 1px solid #d9eaf3;
  border-radius: 10px;
}

.product-gallery-card {
  padding: 12px;
}

.detail-main-image-wrap {
  width: 100%;
  border: 1px solid #dfedf5;
  border-radius: 10px;
  overflow: hidden;
  background: #f4fbff;
}

.detail-main-image-wrap img {
  width: 100%;
  aspect-ratio: 5 / 3.4;
  object-fit: cover;
  display: block;
}

.detail-thumbs {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.detail-thumb {
  width: 64px;
  height: 54px;
  border: 1px solid #d9e8f2;
  border-radius: 8px;
  background: #fff;
  padding: 2px;
  cursor: pointer;
}

.detail-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 6px;
}

.detail-thumb.active {
  border-color: #00adef;
}

.detail-note-box {
  margin-top: 12px;
  border: 1px solid #dcebf4;
  background: #f8fcff;
  border-radius: 10px;
  padding: 10px 12px;
}

.detail-note-box h4 {
  margin: 0 0 8px;
  font-size: 0.9rem;
  font-weight: 800;
  color: #0e5272;
}

.detail-note-box ul {
  margin: 0;
  padding-left: 18px;
  color: #334a5c;
  font-size: 0.84rem;
  line-height: 1.65;
}

.product-main-info {
  padding: 14px;
}

.product-main-info h1 {
  margin: 0;
  font-size: 1.7rem;
  font-weight: 800;
  line-height: 1.2;
  color: #1f2d3a;
}

.vat-note {
  margin: 5px 0 12px;
  color: #667d8f;
  font-size: 0.88rem;
  font-style: italic;
}

.detail-price-line {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
}

.detail-price-line strong {
  font-size: 2.18rem;
  color: #00a5e3;
  line-height: 1;
}

.detail-price-line span {
  color: #93a3b1;
  text-decoration: line-through;
  font-size: 1.18rem;
}

.detail-spec-card {
  border: 1px solid #99d5ea;
  border-radius: 10px;
  padding: 11px 12px;
  background: #fafdff;
}

.detail-spec-card h3 {
  margin: 0 0 8px;
  font-size: 0.92rem;
  font-weight: 800;
  color: #04638d;
  text-transform: uppercase;
}

.detail-spec-tabs {
  display: inline-flex;
  gap: 8px;
  margin-bottom: 10px;
}

.detail-spec-tab {
  min-height: 32px;
  border-radius: 999px;
  border: 1px solid #8fcfe6;
  background: #fff;
  color: #056994;
  font-size: 0.8rem;
  font-weight: 800;
  padding: 0 12px;
  cursor: pointer;
}

.detail-spec-tab.active {
  background: #15a8df;
  color: #fff;
  border-color: #15a8df;
}

.detail-spec-panel {
  display: none;
}

.detail-spec-panel.active {
  display: block;
}

.detail-spec-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 7px;
}

.detail-spec-card li {
  font-size: 0.92rem;
  color: #30465a;
  line-height: 1.45;
}

.detail-spec-card li i {
  margin-right: 8px;
  color: #0ea5de;
}

.detail-tech-content {
  color: #30465a;
  font-size: 0.9rem;
  line-height: 1.6;
}

.detail-tech-empty {
  margin: 0;
  color: #6a7f90;
  font-size: 0.88rem;
}

.detail-buy-box {
  margin-top: 12px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
}

.qty-control {
  display: inline-flex;
  align-items: center;
  border: 1px solid #c9dce7;
  border-radius: 7px;
  overflow: hidden;
  height: 42px;
}

.qty-control button {
  width: 34px;
  border: 0;
  background: #f2f8fc;
  color: #365061;
  font-weight: 700;
  cursor: pointer;
  height: 100%;
}

.qty-control input {
  width: 46px;
  border: 0;
  border-left: 1px solid #dce8ef;
  border-right: 1px solid #dce8ef;
  text-align: center;
  outline: none;
  height: 100%;
}

.btn-add-cart,
.btn-buy-now,
.btn-zalo {
  min-height: 42px;
  border-radius: 7px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-weight: 800;
  font-size: 0.92rem;
  text-transform: uppercase;
}

.btn-add-cart {
  border: 1px solid #0aafe8;
  color: #0a95ca;
  background: #fff;
}

.btn-buy-now {
  margin-top: 8px;
  border: 0;
  width: 100%;
  color: #fff;
  background: linear-gradient(90deg, #12a7dd, #00baef);
  cursor: pointer;
}

.btn-zalo {
  margin-top: 8px;
  width: 100%;
  border: 1px solid #4cb768;
  color: #2d9748;
  background: #f4fff6;
}

.detail-content-card {
  margin-top: 14px;
  border: 1px solid #d9e8f2;
  border-radius: 12px;
  background: #fff;
  padding: 14px;
}

.detail-content-card h3 {
  margin: 0 0 10px;
  font-size: 1.02rem;
  font-weight: 800;
  color: #1e2f3f;
}

.detail-html-content {
  color: #334a5b;
  font-size: 0.93rem;
  line-height: 1.7;
}

.detail-fallback {
  margin: 0;
  color: #4a6173;
  font-size: 0.92rem;
  line-height: 1.6;
}

.detail-bottom-grid {
  margin-top: 16px;
  display: grid;
  gap: 14px;
}

.detail-category-card {
  border: 1px solid #d9e8f2;
  border-radius: 12px;
  background: #fff;
  padding: 14px;
}

.detail-category-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.detail-category-head h3 {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 800;
  color: #1e2f3f;
}

.detail-category-head a {
  color: #046891;
  text-decoration: none;
  font-size: 0.86rem;
  font-weight: 700;
}

.detail-category-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.detail-category-item {
  border: 1px solid #e1edf4;
  border-radius: 10px;
  padding: 10px;
  text-decoration: none;
  color: inherit;
  background: #fcfeff;
}

.detail-category-item img {
  width: 100%;
  height: 120px;
  border-radius: 8px;
  object-fit: cover;
  margin-bottom: 8px;
}

.detail-category-item h4 {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.4;
  color: #20303f;
}

.detail-category-item p {
  margin: 6px 0;
  font-size: 0.82rem;
  color: #4b6173;
  line-height: 1.5;
  min-height: 36px;
}

.detail-category-item b {
  color: #00a4df;
  font-size: 0.95rem;
}

.post-detail-page {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.post-detail-hero {
  background: #fff;
  border-radius: 18px;
  border: 1px solid #d9e8f2;
  padding: 0;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  overflow: hidden;
  gap: 0;
}

.post-detail-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.post-detail-hero-copy {
  padding: 28px 30px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.post-detail-meta {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #5b6a7a;
}

.post-detail-hero-copy h1 {
  margin: 0;
  font-size: clamp(1.8rem, 2.8vw, 2.4rem);
  line-height: 1.2;
  color: #142635;
}

.post-detail-excerpt {
  margin: 0;
  font-size: 1rem;
  color: #4a5b68;
  line-height: 1.8;
}

.post-detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 18px;
}

.post-detail-content {
  background: #fff;
  border: 1px solid #d9e8f2;
  border-radius: 16px;
  padding: 22px;
  line-height: 1.8;
  color: #1f2834;
}

.post-detail-content img {
  max-width: 100%;
  display: block;
  margin: 16px 0;
  border-radius: 8px;
}

.post-detail-aside {
  background: #fff;
  border: 1px solid #d9e8f2;
  border-radius: 16px;
  padding: 18px;
}

.post-detail-aside h3 {
  margin-top: 0;
  font-size: 1rem;
  font-weight: 800;
  color: #1f2f3f;
}

.post-related-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 12px;
}

.post-related-item {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  padding: 6px;
  border-radius: 12px;
  border: 1px solid transparent;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.post-related-item:hover {
  border-color: #cce9fb;
  box-shadow: 0 8px 18px rgba(1, 108, 184, 0.15);
}

.post-related-thumb img {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: 10px;
}

.post-related-copy strong {
  display: block;
  font-size: 0.92rem;
  margin-bottom: 4px;
}

.post-related-copy span {
  font-size: 0.78rem;
  color: #637085;
}

@media (max-width: 960px) {
  .post-detail-hero {
    grid-template-columns: 1fr;
  }

  .post-detail-grid {
    grid-template-columns: 1fr;
  }
}

.product-side-info {
  display: grid;
  gap: 12px;
  align-content: start;
}

.side-card {
  padding: 12px;
}

.side-card h3 {
  margin: 0 0 10px;
  font-size: 0.92rem;
  text-transform: uppercase;
  font-weight: 800;
  color: #28445a;
}

.side-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.side-card li {
  color: #3f5568;
  font-size: 0.88rem;
  line-height: 1.5;
}

.side-card li i {
  margin-right: 8px;
  color: #1c96ca;
}

.side-install {
  background: #eef8fe;
}

.side-install p {
  margin: 0;
  font-size: 0.88rem;
  color: #4a6173;
}

.side-install strong {
  margin-top: 7px;
  display: inline-block;
  color: #0778a8;
  font-size: 1.25rem;
}

.side-related-list {
  display: grid;
  gap: 10px;
}

.side-related-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 8px;
  text-decoration: none;
  color: inherit;
}

.side-related-item img {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid #dce9f1;
}

.side-related-item p {
  margin: 0;
  font-size: 0.81rem;
  color: #334b5e;
  line-height: 1.4;
}

.side-related-item b {
  font-size: 0.92rem;
  color: #00a6e4;
}

.post-block .post-card {
  padding-bottom: 20px;
}

@media (max-width: 1100px) {
  .product-grid,
  .post-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .layout-shell {
    width: min(1480px, 100% - 28px);
  }

  .top-wrap {
    grid-template-columns: 1fr;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .category-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-grid,
  .post-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .benefit-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-detail-grid {
    grid-template-columns: 1fr;
  }

  .detail-category-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .hero-main {
    padding: 24px 18px;
  }

  .hero-main h1 {
    font-size: 1.7rem;
  }

  .section-head h2 {
    font-size: 1.2rem;
  }

  .product-grid,
  .post-grid {
    grid-template-columns: 1fr;
  }

  .benefit-head {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .benefit-head span {
    display: none;
  }

  .benefit-grid {
    grid-template-columns: 1fr;
  }

  .product-main-info h1 {
    font-size: 1.3rem;
  }

  .detail-price-line strong {
    font-size: 1.8rem;
  }

  .detail-buy-box {
    grid-template-columns: 1fr;
  }

  .qty-control {
    justify-self: start;
  }

  .detail-category-grid {
    grid-template-columns: 1fr;
  }
}

.theme-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-left: 6px;
  border-left: 1px solid #d9e7ef;
}

.theme-switch a {
  min-width: 28px;
  height: 26px;
  padding: 0 8px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: #0f3551;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
}

.theme-switch a.active {
  background: #dff4fd;
  color: #075f86;
}

.site-footer {
  margin-top: 46px;
  background: linear-gradient(180deg, #072b3a, #041c27);
  color: #d7e8f0;
}

.footer-grid {
  padding: 34px 0;
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 26px;
}

.footer-grid h4 {
  margin: 0 0 12px;
  font-size: 1rem;
  font-weight: 800;
  color: #ffffff;
}

.footer-grid p {
  margin: 0;
  color: #b8d0dc;
  line-height: 1.7;
  font-size: 0.9rem;
}

.footer-address {
  margin: 0 0 10px;
}

.footer-grid a {
  display: block;
  text-decoration: none;
  color: #cce2ec;
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.footer-grid a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid rgba(149, 196, 215, 0.25);
}

.footer-bottom .layout-shell {
  min-height: 52px;
  display: flex;
  align-items: center;
}

.footer-bottom small {
  color: #a0c2d1;
  font-size: 0.82rem;
}

.floating-contact {
  position: fixed;
  left: 16px;
  bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 80;
}

.floating-btn {
  width: 52px;
  height: 52px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: #fff;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.28);
}

.floating-btn-call {
  background: #ef2d2d;
  font-size: 1.45rem;
}

.floating-btn-zalo {
  background: #0a8ce9;
  font-size: 0.95rem;
  font-weight: 700;
}

.floating-btn:hover {
  filter: brightness(0.96);
}

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 26px 0;
  }

  .floating-contact {
    left: 12px;
    bottom: 12px;
  }

  .floating-btn {
    width: 48px;
    height: 48px;
  }
}