/* Bắc An Xây Dựng (noi-that-xay-dung 4.5): a building contractor. Safety yellow and black, concrete grey, hazard stripes,
   a hotline strip, a unit-price table, a six-step process, uppercase heavy titles. Fonts: Montserrat + Be Vietnam Pro. */
:root {
  --yellow: #ffc21a;
  --black: #151515;
  --concrete: #ebe9e4;
  --grey: #5f5c57;
  --line: rgba(21, 21, 21, 0.14);
  --k-font: 'Be Vietnam Pro', system-ui, sans-serif;
  --k-font-display: 'Montserrat', sans-serif;
  --k-accent: #151515;
  --k-accent-ink: #ffc21a;
  --k-paper: #ffffff;
  --k-ink: #151515;
  --k-radius: 4px;
}

body {
  background: var(--concrete);
  color: var(--black);
  font: 400 16px/1.6 var(--k-font);
}
a {
  color: inherit;
}
h1,
h2,
h3 {
  margin: 0;
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
}
.plain {
  margin: 0;
  padding: 0;
  list-style: none;
}
.center {
  margin: 24px 0 0;
  text-align: center;
}
.link {
  padding: 0;
  border: 0;
  background: none;
  color: var(--yellow);
  font: inherit;
  text-decoration: underline;
  cursor: pointer;
}
.kicker {
  margin: 0 0 8px;
  font:
    700 12px/1.3 'Montserrat',
    sans-serif;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* Hotline and header */
.hotline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 4px 12px;
  padding: 6px 16px;
  background: var(--black);
  color: #fff;
  font-size: 13px;
}
.hotline button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
  border: 0;
  background: none;
  color: var(--yellow);
  font:
    800 15px/1 'Montserrat',
    sans-serif;
  cursor: pointer;
}
.head {
  position: relative;
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  background: #fff;
  border-bottom: 3px solid var(--black);
}
.logo {
  display: grid;
  align-content: center;
  padding: 10px 16px;
  background: var(--yellow);
  line-height: 1;
  text-decoration: none;
}
.logo b {
  font:
    900 24px/1 'Montserrat',
    sans-serif;
  letter-spacing: 0.02em;
}
.logo span {
  font:
    700 11px/1.4 'Montserrat',
    sans-serif;
  letter-spacing: 0.32em;
}
.menu-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px;
  border: 0;
  background: none;
  font:
    800 14px/1 'Montserrat',
    sans-serif;
  text-transform: uppercase;
  cursor: pointer;
}
.nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 30;
  display: none;
  flex-direction: column;
  background: var(--black);
}
.nav[data-open] {
  display: flex;
}
.nav a {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff;
  font:
    700 15px/1.2 'Montserrat',
    sans-serif;
  text-decoration: none;
  text-transform: uppercase;
}
.nav .nav-cta {
  background: var(--yellow);
  color: var(--black);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 50px;
  padding: 0 22px;
  border: 3px solid var(--black);
  border-radius: 4px;
  background: var(--yellow);
  color: var(--black);
  font:
    800 14px/1.2 'Montserrat',
    sans-serif;
  text-transform: uppercase;
  text-decoration: none;
  box-shadow: 4px 4px 0 var(--black);
  cursor: pointer;
}
.btn-dark {
  background: var(--black);
  color: var(--yellow);
  box-shadow: 4px 4px 0 var(--yellow);
}
.btn-sm {
  min-height: 40px;
  padding: 0 12px;
  font-size: 12px;
  box-shadow: 3px 3px 0 var(--black);
}
.btn-wide {
  width: 100%;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* Hero */
.hero {
  position: relative;
  padding: 160px 0 0;
  background-color: #333;
  background-size: cover;
  background-position: center 80%; /* the building sits low in the photo */
}
.hero-panel {
  position: relative;
  padding: 26px 16px 30px;
  background: var(--yellow);
  clip-path: polygon(0 18px, 100% 0, 100% 100%, 0 100%);
}
.hero-title {
  margin: 4px 0 10px;
  font-size: 34px;
  line-height: 1.05;
  text-transform: uppercase;
}
.hero-lead {
  margin: 0 0 20px;
}
.hazard {
  height: 16px;
  background: repeating-linear-gradient(-45deg, var(--black) 0 14px, var(--yellow) 14px 28px);
}
.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 0;
  background: var(--black);
  color: #fff;
}
.stats div {
  padding: 18px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.stats div:nth-child(odd) {
  border-right: 1px solid rgba(255, 255, 255, 0.12);
}
.stats dd {
  margin: 0;
  font:
    900 30px/1 'Montserrat',
    sans-serif;
  color: var(--yellow);
}
.stats dt {
  margin-top: 4px;
  font-size: 13px;
  color: #cfcfcf;
}

/* Sections */
.sec {
  padding: 46px 16px 0;
}
.sec-title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 24px;
  line-height: 1.15;
  text-transform: uppercase;
}
.sec-title span {
  flex: none;
  padding: 2px 8px;
  background: var(--yellow);
  font-size: 14px;
}
.sec-lead {
  margin: -6px 0 18px;
  color: var(--grey);
}
.sec-dark {
  margin-top: 46px;
  padding-bottom: 46px;
  background: var(--black);
  color: #fff;
}

/* Price tables */
.tables {
  display: grid;
  gap: 18px;
}
.price {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 3px solid var(--black);
}
.price caption {
  padding: 10px 12px;
  background: var(--black);
  color: var(--yellow);
  font:
    800 14px/1.2 'Montserrat',
    sans-serif;
  text-align: left;
  text-transform: uppercase;
}
.price th,
.price td {
  padding: 12px;
  border-top: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.price th a {
  display: block;
  font-weight: 700;
  text-decoration: none;
}
.price th small {
  display: block;
  margin-top: 2px;
  font-size: 13px;
  font-weight: 400;
  color: var(--grey);
}
.price td {
  width: 38%;
  text-align: right;
  white-space: nowrap;
}
.price td b {
  display: block;
  font:
    800 16px/1.2 'Montserrat',
    sans-serif;
}
.price td span {
  font-size: 13px;
  color: var(--grey);
}

/* Steps */
.steps {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.steps li {
  position: relative;
  display: grid;
  gap: 2px;
  padding: 16px 16px 16px 64px;
  background: #222;
  counter-increment: step;
}
.steps li::before {
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 14px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  background: var(--yellow);
  color: var(--black);
  font:
    900 18px/1 'Montserrat',
    sans-serif;
}
.steps b {
  font:
    800 16px/1.3 'Montserrat',
    sans-serif;
  text-transform: uppercase;
  color: var(--yellow);
}
.steps span {
  color: #d6d6d6;
  font-size: 15px;
}

/* Jobs */
.jobs {
  display: grid;
  gap: 18px;
}
.job {
  background: #fff;
  border: 3px solid var(--black);
}
.job-img {
  position: relative;
  display: block;
}
.job-img img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}
.job-cat {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 4px 10px;
  background: var(--yellow);
  font:
    800 11px/1.3 'Montserrat',
    sans-serif;
  text-transform: uppercase;
}
.job-body {
  padding: 14px;
}
.job-name {
  font-size: 17px;
  line-height: 1.3;
  overflow-wrap: anywhere;
}
.job-name a {
  text-decoration: none;
}
.job-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0;
}
.job-chips span {
  padding: 2px 8px;
  background: var(--concrete);
  font-size: 13px;
}
.job-chips span:empty {
  display: none;
}
.job-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin: 0;
}
.job-row b {
  font:
    800 17px/1.2 'Montserrat',
    sans-serif;
}

/* People */
.people {
  display: grid;
  gap: 14px;
}
.person {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 14px;
  margin: 0;
  padding: 12px;
  background: #fff;
  border-left: 6px solid var(--yellow);
}
.person img {
  width: 96px;
  height: 96px;
  object-fit: cover;
  filter: grayscale(0.3);
}
.person figcaption {
  display: grid;
  align-content: center;
  gap: 2px;
}
.person b {
  font-family: 'Montserrat', sans-serif;
}
.person span {
  font-size: 14px;
  font-weight: 700;
  color: var(--grey);
}
.person small {
  font-size: 13px;
  color: var(--grey);
}

/* Posts */
.posts {
  display: grid;
  gap: 18px;
}
.post {
  display: grid;
  gap: 4px;
  padding-bottom: 14px;
  border-bottom: 3px solid var(--black);
  text-decoration: none;
}
.post img {
  width: 100%;
  aspect-ratio: 16 / 10;
  margin-bottom: 8px;
  object-fit: cover;
}
.post-date {
  font:
    700 12px/1.3 'Montserrat',
    sans-serif;
  color: var(--grey);
}
.post-title {
  font:
    800 18px/1.3 'Montserrat',
    sans-serif;
}
.post-excerpt {
  font-size: 14px;
  color: var(--grey);
}

/* FAQ */
.faq {
  margin-bottom: 8px;
  background: #fff;
  border: 2px solid var(--black);
}
.faq summary {
  padding: 14px 16px;
  font:
    700 15px/1.4 'Montserrat',
    sans-serif;
  cursor: pointer;
}
.faq p {
  margin: 0;
  padding: 0 16px 14px;
  color: var(--grey);
}

/* Contact */
.contact {
  display: grid;
  gap: 18px;
}
.contact-box {
  padding: 18px;
  background: #fff;
  border: 3px solid var(--black);
}
.contact-addr {
  margin: 0 0 12px;
  font-weight: 700;
}
.hours {
  margin-bottom: 18px;
}
.hours li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 0;
  border-bottom: 1px solid var(--line);
}
.map {
  min-height: 280px;
  border: 3px solid var(--black);
}

/* Inner pages */
.band {
  padding: 26px 16px 24px;
  background: var(--yellow);
  border-bottom: 3px solid var(--black);
}
.band p {
  margin: 8px 0 0;
}
.band-title {
  font-size: 30px;
  line-height: 1.1;
  text-transform: uppercase;
}
.back {
  display: inline-block;
  margin-bottom: 10px;
  font:
    700 13px/1 'Montserrat',
    sans-serif;
  text-decoration: none;
  text-transform: uppercase;
}
.finder {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  margin-bottom: 12px;
}
.find,
.sel {
  min-width: 0;
  min-height: 48px;
  padding: 0 12px;
  border: 3px solid var(--black);
  border-radius: 4px;
  background: #fff;
  color: var(--black);
  font: 400 16px/1 var(--k-font);
}
.sel {
  max-width: 150px;
  font-size: 14px;
}
.tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 18px;
  padding-bottom: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs-list {
  display: contents;
}
.tab {
  flex: none;
  min-height: 40px;
  padding: 0 14px;
  border: 2px solid var(--black);
  background: #fff;
  font:
    700 13px/1 'Montserrat',
    sans-serif;
  white-space: nowrap;
  cursor: pointer;
}
.tab[aria-pressed='true'] {
  background: var(--black);
  color: var(--yellow);
}
.rows {
  display: grid;
  gap: 12px;
}
.row {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 12px;
  padding: 10px;
  background: #fff;
  border-left: 6px solid var(--yellow);
}
.row-img img {
  display: block;
  width: 96px;
  height: 96px;
  object-fit: cover;
}
.row-cat {
  margin: 0;
  font:
    700 11px/1.3 'Montserrat',
    sans-serif;
  text-transform: uppercase;
  color: var(--grey);
}
.row-name {
  font-size: 16px;
  line-height: 1.3;
  overflow-wrap: anywhere;
}
.row-name a {
  text-decoration: none;
}
.row-short {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--grey);
}
.row-side {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}
.row-side b {
  font:
    800 16px/1.2 'Montserrat',
    sans-serif;
}
.row-side small {
  color: var(--grey);
}
.row-side .btn {
  margin-left: auto;
}
.empty {
  padding: 18px;
  background: #fff;
}
.detail {
  display: grid;
  gap: 20px;
}
.detail-img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 3px solid var(--black);
}
.detail-price {
  margin: 0 0 10px;
}
.detail-price b {
  font:
    900 26px/1.1 'Montserrat',
    sans-serif;
}
.detail-short {
  font-weight: 700;
}
.boxes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 0;
}
.boxes div {
  padding: 12px;
  background: #fff;
  border-top: 4px solid var(--yellow);
}
.boxes dt {
  font:
    700 11px/1.3 'Montserrat',
    sans-serif;
  text-transform: uppercase;
  color: var(--grey);
}
.boxes dd {
  margin: 4px 0 0;
  font-size: 14px;
  overflow-wrap: anywhere;
}

/* Order */
.order {
  display: grid;
  gap: 18px;
}
.order-form {
  padding: 18px;
  background: #fff;
  border: 3px solid var(--black);
}
.order-item {
  margin: 0 0 14px;
  padding: 10px 12px;
  background: var(--concrete);
  border-left: 6px solid var(--yellow);
}
.order-item:has(b:empty) {
  display: none;
}
.order-side {
  padding: 18px;
  background: var(--black);
  color: #fff;
}
.order-side .btn {
  margin: 8px 0 16px;
}
.checks li {
  padding: 6px 0 6px 26px;
  position: relative;
}
.checks li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--yellow);
  font-weight: 900;
}

/* Article */
.read {
  max-width: 760px;
  margin: 0 auto;
}
.read-lead {
  font-size: 19px;
  font-weight: 700;
}
.read-body {
  margin-top: 20px;
}
.read-body p {
  margin: 0 0 16px;
  font-size: 17px;
  line-height: 1.75;
}
.read-cta {
  display: grid;
  gap: 12px;
  margin: 26px 0 36px;
  padding: 18px;
  background: var(--yellow);
  border: 3px solid var(--black);
}
.read-cta p {
  margin: 0;
}
.more-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-weight: 700;
}

/* Footer */
.foot {
  margin-top: 56px;
  padding: 0 16px 10px;
  background: var(--black);
  color: #e3e3e3;
  border-top: 16px solid transparent;
  border-image: repeating-linear-gradient(-45deg, var(--black) 0 14px, var(--yellow) 14px 28px) 16;
}
.foot-grid {
  display: grid;
  gap: 18px;
  padding-top: 26px;
}
.foot-grid p {
  margin: 0 0 4px;
}
.logo-foot {
  display: inline-grid;
  margin-bottom: 10px;
  color: var(--black);
}
.foot-h {
  font:
    800 12px/1.4 'Montserrat',
    sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--yellow);
}

@media (min-width: 880px) {
  .hotline {
    padding: 8px 40px;
  }
  .menu-btn {
    display: none;
  }
  .nav {
    position: static;
    display: flex;
    flex-direction: row;
    align-items: stretch;
    background: none;
  }
  .nav a {
    display: flex;
    align-items: center;
    padding: 0 18px;
    border: 0;
    color: var(--black);
    font-size: 13px;
  }
  .logo {
    padding: 14px 40px;
  }
  .hero {
    padding: 120px 40px 0;
    min-height: 560px;
    display: flex;
    align-items: flex-end;
  }
  .hero-panel {
    max-width: 640px;
    padding: 44px 40px 40px;
    clip-path: polygon(0 28px, 100% 0, 100% 100%, 0 100%);
  }
  .hero-title {
    font-size: 54px;
  }
  .stats {
    grid-template-columns: repeat(4, 1fr);
  }
  .stats div {
    padding: 26px 40px;
    border-bottom: 0;
    border-right: 1px solid rgba(255, 255, 255, 0.12);
  }
  .sec,
  .band {
    padding-left: max(40px, calc((100% - 1160px) / 2));
    padding-right: max(40px, calc((100% - 1160px) / 2));
  }
  .sec {
    padding-top: 72px;
  }
  .sec-title {
    font-size: 34px;
  }
  .band-title {
    font-size: 46px;
  }
  .tables {
    grid-template-columns: 1.3fr 1fr;
    align-items: start;
  }
  .tables .price:first-child {
    grid-row: span 2;
  }
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
  .jobs {
    grid-template-columns: repeat(3, 1fr);
  }
  .people {
    grid-template-columns: 1fr 1fr;
  }
  .posts {
    grid-template-columns: repeat(3, 1fr);
  }
  .faqs {
    max-width: 860px;
  }
  .contact {
    grid-template-columns: 1fr 1.4fr;
  }
  .map {
    min-height: 360px;
  }
  .finder {
    max-width: 760px;
  }
  .rows {
    grid-template-columns: 1fr 1fr;
  }
  .detail {
    grid-template-columns: 1.3fr 1fr;
    gap: 40px;
    align-items: start;
  }
  .boxes {
    grid-template-columns: repeat(4, 1fr);
  }
  .order {
    grid-template-columns: 1.5fr 1fr;
    align-items: start;
  }
  .foot-grid {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    max-width: 1160px;
    margin: 0 auto;
  }
}