/* Thước Vuông (bat-dong-san 4.3): a search-first listing portal. Clean white, cobalt blue, a mint highlight, category tabs
   under the header, a filter sidebar, square-metre fact tiles and a price bar that sticks to the bottom on phones.
   Fonts: Space Grotesk (headings, numbers) + Nunito (text). */
:root {
  --cobalt: #2350d8;
  --cobalt-deep: #142f8a;
  --mint: #c9f2df;
  --mint-ink: #0d6b45;
  --bg: #f5f7fb;
  --ink: #141a2a;
  --muted: #5b6478;
  --line: #e1e6f0;
  --k-font: 'Nunito', system-ui, sans-serif;
  --k-font-display: 'Space Grotesk', system-ui, sans-serif;
  --k-accent: #2350d8;
  --k-accent-ink: #ffffff;
  --k-ink: #141a2a;
  --k-paper: #ffffff;
  --k-muted: #5b6478;
  --k-line: #e1e6f0;
  --k-radius: 12px;
}
body {
  background: var(--bg);
  color: var(--ink);
  font:
    400 16px/1.6 'Nunito',
    system-ui,
    sans-serif;
}
body.page-detail {
  padding-bottom: 86px;
}
a {
  color: inherit;
}
h1,
h2,
h3 {
  margin: 0;
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-weight: 700;
  letter-spacing: -0.01em;
}
p {
  margin: 0 0 12px;
}
.plain {
  margin: 0;
  padding: 0;
  list-style: none;
}
.k-icon {
  width: 18px;
  height: 18px;
}
.h1 {
  font-size: 34px;
  line-height: 1.1;
}
.h1-page {
  font-size: 28px;
  overflow-wrap: anywhere;
}
.h2 {
  margin-bottom: 18px;
  font-size: 26px;
  line-height: 1.2;
}
.h3 {
  margin-bottom: 8px;
  font-size: 19px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 20px;
  border: 1.5px solid var(--cobalt);
  border-radius: 12px;
  background: var(--cobalt);
  color: #fff;
  font:
    800 15px/1 'Nunito',
    sans-serif;
  text-decoration: none;
  cursor: pointer;
}
.btn-ghost {
  background: #fff;
  color: var(--cobalt);
  border-color: var(--line);
}
.btn-sm {
  min-height: 42px;
  padding: 0 14px;
  font-size: 14px;
}
.btn-block {
  width: 100%;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.link {
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  text-decoration: underline;
  cursor: pointer;
}
.more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 800;
  color: var(--cobalt);
  text-decoration: none;
  white-space: nowrap;
}

/* Header + category tabs */
.hdr {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.hdr-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 auto 0 0;
  font:
    700 20px/1 'Space Grotesk',
    sans-serif;
  text-decoration: none;
}
.logo-box {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--cobalt);
  color: #fff;
  font:
    700 15px/1 'Space Grotesk',
    sans-serif;
}
.hdr-search,
.hdr-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-width: 44px;
  height: 44px;
  border-radius: 12px;
  text-decoration: none;
}
.hdr-search {
  background: var(--bg);
  color: var(--ink);
}
.hdr-cta {
  padding: 0 14px;
  background: var(--mint);
  color: var(--mint-ink);
  font-weight: 800;
  font-size: 14px;
}
.cats {
  display: flex;
  gap: 4px;
  padding: 0 12px;
  overflow-x: auto;
  scrollbar-width: none;
}
.cats-list {
  display: contents;
}
.cats a {
  flex: none;
  padding: 10px 10px 12px;
  border-bottom: 3px solid transparent;
  font-weight: 700;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
}
.cats a:hover {
  border-color: var(--cobalt);
  color: var(--cobalt);
}

/* Hero */
.hero {
  padding: 16px 16px 0;
}
.hero-in {
  padding: 28px 20px;
  border-radius: 22px;
  background: var(--cobalt);
  color: #fff;
  background-image: radial-gradient(circle at 100% 0, rgba(201, 242, 223, 0.25), transparent 50%);
}
.hl {
  padding: 0 6px;
  border-radius: 8px;
  background: var(--mint);
  color: var(--cobalt-deep);
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}
.hero-lead {
  margin: 14px 0 20px;
  color: #dbe3ff;
}
.fake-search {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 56px;
  padding: 0 6px 0 16px;
  border-radius: 14px;
  background: #fff;
  color: var(--muted);
  text-decoration: none;
}
.fake-search span {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.fake-search b {
  display: grid;
  place-items: center;
  height: 44px;
  padding: 0 16px;
  border-radius: 10px;
  background: var(--ink);
  color: #fff;
}
.quick {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.quick-chip {
  display: inline-flex;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}
.quick-chip b {
  color: var(--mint);
}

.sec {
  padding: 44px 16px 0;
}
.page {
  padding-top: 22px;
}
.sec-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

/* Listing cards */
.grid {
  display: grid;
  gap: 16px;
}
.item {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}
.item-img {
  position: relative;
  display: block;
}
.item-img img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}
.item-cat {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 4px 10px;
  border-radius: 8px;
  background: rgba(20, 26, 42, 0.78);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}
.item-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 14px 16px 16px;
}
.item-price {
  margin: 0 0 4px;
  font:
    700 26px/1.1 'Space Grotesk',
    sans-serif;
  color: var(--cobalt);
}
.item-name {
  font:
    700 17px/1.35 'Nunito',
    sans-serif;
  overflow-wrap: anywhere;
}
.item-name a {
  text-decoration: none;
}
.item-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0 14px;
}
.item-tags li {
  padding: 3px 9px;
  border-radius: 6px;
  background: var(--mint);
  color: var(--mint-ink);
  font-size: 13px;
  font-weight: 700;
}
.item-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: auto;
}
.empty {
  padding: 20px;
  border-radius: 16px;
  background: #fff;
  border: 1px dashed var(--line);
  color: var(--muted);
}

/* Numbers */
.numbers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.number {
  display: grid;
  gap: 4px;
  padding: 16px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid var(--line);
}
.number b {
  font:
    700 30px/1 'Space Grotesk',
    sans-serif;
  color: var(--cobalt);
}
.number span {
  font-size: 14px;
  color: var(--muted);
}

/* How */
.how {
  display: grid;
  gap: 12px;
}
.how-step {
  padding: 18px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid var(--line);
}
.how-step p {
  margin: 0;
  color: var(--muted);
}
.how-ico {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 12px;
  border-radius: 12px;
  background: var(--mint);
  color: var(--mint-ink);
}

/* Reviews */
.revs {
  display: grid;
  gap: 12px;
}
.rev {
  margin: 0;
  padding: 18px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid var(--line);
}
.rev-stars {
  margin: 0 0 8px;
  color: #f0a020;
  letter-spacing: 0.08em;
}
.rev blockquote {
  margin: 0 0 12px;
}
.rev figcaption {
  display: grid;
  font-size: 14px;
  color: var(--muted);
}
.rev b {
  color: var(--ink);
}

/* FAQ */
.faqs {
  display: grid;
  gap: 8px;
}
.faq {
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--line);
}
.faq summary {
  position: relative;
  padding: 15px 44px 15px 16px;
  font-weight: 800;
  list-style: none;
  cursor: pointer;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary::after {
  content: '+';
  position: absolute;
  right: 16px;
  top: 11px;
  font:
    700 22px/1 'Space Grotesk',
    sans-serif;
  color: var(--cobalt);
}
.faq[open] summary::after {
  content: '−';
}
.faq p {
  margin: 0;
  padding: 0 16px 16px;
  color: var(--muted);
}

/* Contact */
.contact {
  display: grid;
  gap: 14px;
}
.contact-card {
  padding: 22px 18px;
  border-radius: 18px;
  background: var(--ink);
  color: #e3e8f4;
}
.contact-card .h2 {
  color: #fff;
}
.contact-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 0 0 10px;
}
.contact-row .k-icon {
  flex: none;
  margin-top: 3px;
  color: var(--mint);
}
.contact .actions {
  margin-top: 16px;
}
.contact .btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
}
.map {
  min-height: 280px;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid var(--line);
}

/* List layout */
.layout {
  display: grid;
  gap: 18px;
  margin-top: 16px;
}
.side {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 16px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid var(--line);
}
.search {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  border: 1.5px solid var(--cobalt);
  border-radius: 12px;
}
.search .k-icon {
  color: var(--cobalt);
}
.search input {
  flex: 1;
  min-width: 0;
  min-height: 48px;
  border: 0;
  background: none;
  font:
    400 16px/1 'Nunito',
    sans-serif;
  outline: none;
}
.side-h {
  display: block;
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 800;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.side-cats {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
}
.side-list {
  display: contents;
}
.fbtn {
  flex: none;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  font:
    700 14px/1 'Nunito',
    sans-serif;
  color: var(--ink);
  white-space: nowrap;
  cursor: pointer;
}
.fbtn[aria-pressed='true'] {
  background: var(--cobalt);
  border-color: var(--cobalt);
  color: #fff;
}
.side-selects {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.select {
  width: 100%;
  min-width: 0;
  min-height: 44px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  font:
    600 14px/1 'Nunito',
    sans-serif;
  color: var(--ink);
}

/* Detail */
.crumbs {
  margin-bottom: 14px;
  font-size: 14px;
  color: var(--muted);
  overflow-wrap: anywhere;
}
.crumbs a {
  text-decoration: none;
}
.d-wrap {
  display: grid;
  gap: 20px;
}
.d-main {
  min-width: 0;
}
.d-img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  margin-bottom: 18px;
  border-radius: 18px;
  object-fit: cover;
}
.d-main .item-tags {
  margin: 12px 0 18px;
}
.d-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 24px;
}
.fact {
  display: grid;
  gap: 2px;
  padding: 12px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--line);
  min-width: 0;
}
.fact span {
  font-size: 13px;
  color: var(--muted);
}
.fact b {
  font:
    700 16px/1.3 'Space Grotesk',
    sans-serif;
  overflow-wrap: anywhere;
}
.d-short {
  font-weight: 800;
}
.d-side {
  display: grid;
  gap: 12px;
  align-content: start;
}
.d-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  background: #fff;
  border-top: 1px solid var(--line);
  box-shadow: 0 -10px 30px rgba(20, 26, 42, 0.08);
}
.d-bar small {
  color: var(--muted);
}
.d-price {
  margin: 0;
  font:
    700 26px/1 'Space Grotesk',
    sans-serif;
  color: var(--cobalt);
}
.d-note {
  margin: 0;
  padding: 14px;
  border-radius: 12px;
  background: var(--mint);
  color: var(--mint-ink);
  font-size: 14px;
  font-weight: 700;
}
.d-more {
  margin-top: 44px;
}

/* Order */
.o-card {
  max-width: 620px;
  margin: 0 auto;
  padding: 22px 18px;
  border-radius: 20px;
  background: #fff;
  border: 1px solid var(--line);
}
.o-sum {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin: 16px 0 18px;
  padding: 14px;
  border-radius: 14px;
  background: var(--bg);
}
.o-ico {
  display: grid;
  place-items: center;
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--cobalt);
  color: #fff;
}
.o-sum > div {
  display: grid;
  gap: 2px;
  min-width: 0;
}
.o-sum > div > b {
  font-weight: 800;
  overflow-wrap: anywhere;
}
.o-sum > div > b:empty::before {
  content: 'Chọn tin ở ô bên dưới';
  color: var(--muted);
  font-weight: 600;
}
.o-sum span {
  font-size: 15px;
  color: var(--muted);
  overflow-wrap: anywhere;
}
.o-sum span b {
  color: var(--cobalt);
}
.o-points {
  display: grid;
  gap: 8px;
  margin-top: 16px;
  font-size: 14px;
  color: var(--muted);
}
.o-points li {
  display: flex;
  gap: 8px;
}
.o-points .k-icon {
  flex: none;
  margin-top: 2px;
  color: var(--cobalt);
}

/* Footer */
.ftr {
  margin-top: 56px;
  padding: 36px 16px 12px;
  background: #fff;
  border-top: 1px solid var(--line);
}
.ftr-in {
  display: grid;
  gap: 22px;
}
.logo-ftr {
  margin-bottom: 10px;
}
.ftr-h {
  font-weight: 800;
  color: var(--cobalt);
}
.ftr p,
.ftr li {
  margin: 0 0 6px;
  color: var(--muted);
}
.ftr p:not([class]),
.ftr li {
  font-size: 15px;
}

@media (min-width: 640px) {
  .grid {
    grid-template-columns: 1fr 1fr;
  }
  .how {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (min-width: 960px) {
  body.page-detail {
    padding-bottom: 0;
  }
  .hdr-row,
  .cats {
    max-width: 1240px;
    margin: 0 auto;
    padding-left: 32px;
    padding-right: 32px;
  }
  .hdr-row {
    padding-top: 14px;
    padding-bottom: 8px;
  }
  .h1 {
    font-size: 52px;
  }
  .h1-page {
    font-size: 36px;
  }
  .h2 {
    font-size: 32px;
  }
  .hero {
    max-width: 1240px;
    margin: 0 auto;
    padding: 24px 32px 0;
  }
  .hero-in {
    padding: 56px 56px;
  }
  .hero-in .h1 {
    max-width: 16em;
  }
  .fake-search {
    max-width: 720px;
  }
  .sec {
    max-width: 1240px;
    margin: 0 auto;
    padding: 64px 32px 0;
  }
  .page {
    padding-top: 32px;
  }
  .grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .numbers {
    grid-template-columns: repeat(4, 1fr);
  }
  .revs {
    grid-template-columns: repeat(3, 1fr);
  }
  .faqs {
    max-width: 860px;
  }
  .contact {
    grid-template-columns: 1fr 1.4fr;
  }
  .map {
    min-height: 340px;
  }
  .layout {
    grid-template-columns: 290px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }
  .side {
    position: sticky;
    top: 120px;
  }
  .side-cats {
    flex-direction: column;
  }
  .fbtn {
    text-align: left;
  }
  .side-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
  .side-selects {
    grid-template-columns: 1fr;
  }
  .grid-list {
    grid-template-columns: 1fr 1fr;
  }
  .d-wrap {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 32px;
    align-items: start;
  }
  .d-facts {
    grid-template-columns: repeat(3, 1fr);
  }
  .d-side {
    position: sticky;
    top: 130px;
  }
  .d-bar {
    position: static;
    display: grid;
    gap: 14px;
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: none;
  }
  .d-price {
    font-size: 34px;
  }
  .ftr-in {
    max-width: 1176px;
    margin: 0 auto;
    grid-template-columns: 1.5fr 1fr 1fr;
  }
}