.wrap {
  width: min(var(--max), 100%);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.topbar {
  background: var(--chrome);
  color: #fff;
}

.topbar .wrap {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 1.5rem;
  padding-block: 0.4rem;
  font-size: 0.78rem;
}

.topbar-email {
  display: none;
  white-space: nowrap;
}

.topbar a[href^="tel:"] {
  white-space: nowrap;
}

@media (min-width: 768px) {
  .topbar-email {
    display: inline;
  }
}

.header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid var(--line);
  background: rgb(255 255 255 / 95%);
  backdrop-filter: blur(12px);
}

@media (prefers-color-scheme: dark) {
  .header {
    background: rgb(6 21 37 / 95%);
  }
}

.header .wrap,
.topbar .wrap,
.hero-copy.wrap {
  width: 100%;
  max-width: none;
  margin-inline: 0;
}

.header .wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 0.75rem;
}

@media (min-width: 1024px) {
  .header .wrap,
  .topbar .wrap,
  .hero-copy.wrap {
    padding-inline: 2.5rem;
  }
}

.logo {
  width: auto;
  height: 4rem;
  object-fit: contain;
  object-position: left center;
}

.logo--dark {
  display: none;
}

@media (prefers-color-scheme: dark) {
  .logo--light {
    display: none;
  }

  .logo--dark {
    display: block;
  }
}

@media (min-width: 768px) {
  .logo {
    height: 5rem;
  }
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-toggle {
  display: none;
  color: var(--sea-deep);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  color: var(--sea-deep);
  font-size: 0.92rem;
  line-height: 1;
}

.nav > a:hover,
.nav-item > a:hover {
  color: var(--sea);
}

.nav > a,
.nav-item > a {
  display: inline-flex;
  align-items: center;
  height: 1.75rem;
  border-bottom: 2px solid transparent;
  line-height: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  height: 1.75rem;
}

.nav a.is-current {
  border-bottom-color: var(--sea);
}

.nav-item {
  position: relative;
}

.nav-item:hover,
.nav-item:focus-within {
  z-index: 50;
}

.nav-sub {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  left: auto;
  z-index: 40;
  width: 20rem;
  padding: 1.15rem 0.85rem 0.7rem;
  border-radius: var(--radius);
  background: linear-gradient(to bottom, transparent 0.45rem, var(--white) 0.45rem);
  color: var(--sea-deep);
  box-shadow: 0 12px 32px rgb(22 48 40 / 12%);
}

.nav-sub::before {
  content: "";
  position: absolute;
  top: 0.45rem;
  right: 1.35rem;
  left: 1.35rem;
  height: 2px;
  background: var(--gold);
}

.nav-item.is-left .nav-sub {
  right: auto;
  left: 0;
}

.nav-item:hover .nav-sub,
.nav-item:focus-within .nav-sub {
  display: grid;
}

.nav-sub a {
  display: block;
  border-radius: var(--radius);
  padding: 0.7rem 0.45rem;
  color: var(--sea-deep);
}

.nav-sub a strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.3;
}

.nav-sub a small {
  display: block;
  margin-top: 0.15rem;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.35;
}

.nav-sub a:hover {
  background: var(--paper);
}

.nav-sub a:hover,
.nav-sub a:hover strong {
  color: var(--gold);
}

.hero {
  position: relative;
  width: 100%;
  aspect-ratio: 2400 / 840;
  min-height: 24rem;
  overflow: hidden;
  background: var(--sea-deep);
}

@media (min-width: 640px) {
  .hero {
    min-height: 0;
  }
}

.hero-slide,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-slide {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.7s ease;
}

.hero-slide.is-on {
  opacity: 1;
}

.hero-shade {
  background: linear-gradient(90deg, rgb(6 28 46 / 90%) 0%, rgb(8 40 62 / 72%) 32%, rgb(8 72 102 / 22%) 58%, rgb(8 72 102 / 0%) 74%);
}

.hero-copy {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-top: 4rem;
  padding-bottom: 2rem;
}

@media (min-width: 1024px) {
  .hero-copy {
    padding-bottom: 2.5rem;
  }
}

.hero-text {
  max-width: 48rem;
}

.section {
  padding-block: 6rem;
}

.section-products {
  padding-top: 2.5rem;
  padding-bottom: 6rem;
  scroll-margin-top: 9rem;
}

.section-products > .heading {
  line-height: 1.2;
}

.band {
  background: var(--paper);
}

.band-copy {
  container-type: inline-size;
}

.band-intro {
  padding-block: 7rem;
}

.band-photo {
  margin-top: 2.5rem;
  min-height: 0;
  aspect-ratio: 1447 / 1087;
  background: var(--white);
}

.photo.band-photo img {
  object-fit: contain;
  object-position: center center;
}

.band-coverage {
  background: var(--white);
}

.band-values {
  background: var(--paper);
}

.values-inner {
  padding-block: 5rem;
}

.coverage {
  display: grid;
  align-items: stretch;
  gap: 2rem;
  padding-block: 6rem;
}

.coverage-copy {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  scroll-margin-top: 9rem;
}

.coverage-copy::before {
  content: "";
  position: absolute;
  inset: 0 0 0 auto;
  width: min(100%, 34rem);
  background: url("../images/ban-do-phan-phoi.png") right center / contain no-repeat;
  opacity: 0.16;
  pointer-events: none;
}

.coverage-copy > * {
  position: relative;
  z-index: 1;
}

#gioi-thieu,
#gia-tri,
#mang-luoi-dia-phuong,
#chuyen-gia-y-te,
#doi-tac-kinh-doanh {
  scroll-margin-top: 9rem;
}

@media (min-width: 1024px) {
  .grid-units {
    gap: 2rem;
  }
}

.footer {
  background: var(--white);
  color: var(--muted);
}

.footer-main {
  display: grid;
  gap: 2rem;
  padding-block: 4rem 3.25rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  font-size: 0.82rem;
}

.footer-bar {
  background: var(--chrome);
  color: #fff;
}

.footer-bar .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.875rem;
  font-size: 0.78rem;
}

.page {
  max-width: 48rem;
  padding-block: 5rem;
}

.page-block + .page-block {
  margin-top: 2.5rem;
}

@media (min-width: 768px) {
  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .value-item:last-child {
    grid-column: 1 / -1;
  }

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

  .footer-aside {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
  }

  .footer-aside .footer-links {
    justify-content: flex-end;
  }
}

@media (min-width: 1024px) {
  .band-intro {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
    column-gap: 3.5rem;
  }

  .band-copy .prose {
    max-width: none;
  }

  #gioi-thieu .heading {
    font-size: 1.5rem;
    white-space: nowrap;
  }

  .band-photo {
    margin-top: 0;
  }

  .coverage {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  .values-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 3rem 1.75rem;
    max-width: 72rem;
    margin-inline: auto;
  }

  .value-item {
    grid-column: span 2;
  }

  .value-item:nth-child(4) {
    grid-column: 2 / span 2;
  }

  .value-item:last-child {
    grid-column: span 2;
  }

  .footer-main {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr) auto;
    align-items: start;
  }

  .footer-aside {
    grid-column: auto;
    justify-self: end;
  }
}

@media (max-width: 767px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    display: none;
    position: absolute;
    inset-inline: 0;
    top: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    border-bottom: 1px solid var(--line);
    background: var(--white);
    padding: 1rem var(--pad);
  }

  .nav.is-open {
    display: flex;
    max-height: calc(100dvh - 5.5rem);
    overflow-y: auto;
  }

  .nav-item {
    display: block;
    width: 100%;
    height: auto;
  }

  .nav-item:hover .nav-sub,
  .nav-item:focus-within .nav-sub {
    display: none;
  }

  .nav-item.is-open .nav-sub,
  .nav-item.is-open:hover .nav-sub,
  .nav-item.is-open:focus-within .nav-sub {
    display: grid;
  }

  .nav > a,
  .nav-item > a {
    height: auto;
    padding-block: 0.4rem;
  }

  .nav-item.is-open > a {
    margin-bottom: 0.85rem;
  }

  .nav-sub {
    position: relative;
    display: none;
    width: 100%;
    margin-top: 0;
    padding: 0.85rem 0.75rem 0.55rem;
    background: var(--paper);
  }

  .nav-sub::before {
    top: -0.5rem;
    right: 0;
    left: 0;
  }

  @media (prefers-color-scheme: dark) {
    .nav {
      background: #061525;
    }
  }
}

@media (prefers-color-scheme: dark) {
  .nav-sub {
    background: linear-gradient(to bottom, transparent 0.45rem, #0e2a1c 0.45rem);
    color: var(--gold);
  }

  .nav-sub a,
  .nav-sub a strong {
    color: #fff;
  }

  .nav-sub a small {
    color: var(--muted);
  }

  .nav-sub a:hover {
    background: rgb(255 255 255 / 8%);
  }

  .nav-sub a:hover,
  .nav-sub a:hover strong {
    color: var(--gold);
  }
}

@media (max-width: 767px) and (prefers-color-scheme: dark) {
  .nav-sub {
    background: transparent;
  }
}