/* ==========================================================================
   BÁCH KHOA HP - MAIN THEME STYLES
   ========================================================================== */

/* Reset button styles */
button {
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
  outline: none;
  padding: 0;
  margin: 0;
}

/* ---------- 1. HEADER & NAVIGATION ---------- */
.bk-site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: #ffffff;
  box-shadow: 0 2px 12px rgba(11, 78, 162, 0.08);
  transition: var(--bk-transition);
}

.bk-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
  gap: 16px;
}

.bk-header-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.bk-header-logo img,
.bk-logo-link img {
  height: 44px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  display: block;
}

.bk-nav-desktop {
  display: flex;
  align-items: center;
}

.bk-nav-desktop .menu {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 0;
  padding: 0;
}

.bk-nav-desktop a {
  font-size: 0.9rem;
  font-weight: 600;
  color: #334155;
  padding: 8px 4px;
  position: relative;
  white-space: nowrap;
  letter-spacing: -0.1px;
  transition: color 0.2s ease;
  display: inline-block;
}

.bk-nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2.5px;
  background-color: var(--bk-orange);
  border-radius: 2px;
  transition: width 0.25s ease, left 0.25s ease;
}

.bk-nav-desktop a:hover {
  color: var(--bk-orange);
}

.bk-nav-desktop a:hover::after,
.bk-nav-desktop li.current-menu-item > a::after,
.bk-nav-desktop li.current_page_item > a::after {
  width: 100%;
  left: 0;
}

.bk-nav-desktop li.current-menu-item > a,
.bk-nav-desktop li.current_page_item > a {
  color: var(--bk-orange);
  font-weight: 700;
}

.bk-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.bk-header-search-btn {
  background: none;
  border: none;
  color: var(--bk-blue-primary);
  cursor: pointer;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.bk-header-search-btn:hover {
  background-color: var(--bk-blue-light);
  color: var(--bk-orange);
  transform: scale(1.05);
}

.bk-header-quote-btn {
  background: linear-gradient(135deg, #f25816 0%, #ff682e 100%);
  color: #ffffff;
  padding: 10px 20px;
  border-radius: var(--bk-radius-md);
  font-weight: 700;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  outline: none;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(242, 88, 22, 0.25);
  transition: all 0.25s ease;
}

.bk-header-quote-btn:hover {
  background: linear-gradient(135deg, #d94608 0%, #f25816 100%);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(242, 88, 22, 0.38);
}

.bk-header-quote-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(242, 88, 22, 0.2);
}

.bk-header-quote-btn svg {
  transition: transform 0.2s ease;
}

.bk-header-quote-btn:hover svg {
  transform: translateX(2px) translateY(-1px);
}

.bk-mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--bk-blue-primary);
  cursor: pointer;
  padding: 6px;
}

/* Mobile Drawer */
.bk-mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 300px;
  max-width: 85vw;
  height: 100%;
  background: #ffffff;
  z-index: 1050;
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
  transition: right 0.3s ease;
  display: flex;
  flex-direction: column;
  padding: 24px 20px;
}

.bk-mobile-drawer.is-open {
  right: 0;
}

.bk-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--bk-border);
}

.bk-drawer-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--bk-text-muted);
  cursor: pointer;
}

.bk-drawer-menu {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.bk-drawer-menu a {
  font-size: 1rem;
  font-weight: 600;
  color: var(--bk-text-main);
  padding: 10px 0;
  border-bottom: 1px solid #f8fafc;
  display: block;
}

.bk-drawer-menu a:hover,
.bk-drawer-menu .current-menu-item a {
  color: var(--bk-orange);
}

.bk-drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  z-index: 1040;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease;
}

.bk-drawer-overlay.is-open {
  opacity: 1;
  visibility: visible;
}


/* ---------- 2. HERO SECTION ---------- */
.bk-hero-section {
  position: relative;
  background: linear-gradient(180deg, #dff0fd 0%, #edf5fc 45%, #ffffff 100%);
  padding: 35px 0 45px 0;
  overflow: hidden;
}

.bk-hero-wrapper {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  align-items: center;
  gap: 30px;
  position: relative;
  z-index: 2;
}

.bk-hero-content {
  max-width: 600px;
}

.bk-hero-tagline {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--bk-blue-primary);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.bk-hero-title {
  font-size: 2.3rem;
  font-weight: 900;
  line-height: 1.22;
  color: #083c7d;
  margin-bottom: 14px;
}

.bk-hero-desc {
  font-size: 0.95rem;
  color: #475569;
  line-height: 1.6;
  margin-bottom: 24px;
}

.bk-hero-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px 20px;
}

.bk-hero-feat-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.bk-feat-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: #ffffff;
  color: var(--bk-blue-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(11, 78, 162, 0.12);
}

.bk-feat-icon svg {
  width: 20px;
  height: 20px;
}

.bk-feat-text h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: #0b3469;
  line-height: 1.2;
}

.bk-feat-text p {
  font-size: 0.78rem;
  color: #64748b;
  margin: 0;
}

.bk-hero-media {
  position: relative;
  display: flex;
  justify-content: center;
}

.bk-hero-media img {
  width: 100%;
  max-height: 300px;
  object-fit: contain;
  filter: drop-shadow(0 12px 24px rgba(11, 78, 162, 0.12));
}


/* ---------- 3. THREE MAIN PILLARS SECTION ---------- */
.bk-pillars-section {
  padding: 10px 0 35px 0;
  background-color: #ffffff;
}

.bk-pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.bk-pillar-card {
  background: linear-gradient(135deg, #f7faff 0%, #edf5fc 100%);
  border: 1px solid #dce8f5;
  border-radius: var(--bk-radius-lg);
  padding: 18px 20px;
  display: grid;
  grid-template-columns: 110px 1fr;
  align-items: center;
  gap: 16px;
  transition: var(--bk-transition);
  position: relative;
  overflow: hidden;
}

.bk-pillar-card:nth-child(2) {
  background: linear-gradient(135deg, #fffcf7 0%, #fff7ee 100%);
  border-color: #fde8d7;
}

.bk-pillar-card:nth-child(3) {
  background: linear-gradient(135deg, #f7faff 0%, #eef5fb 100%);
  border-color: #dce8f5;
}

.bk-pillar-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 24px rgba(11, 78, 162, 0.1);
}

.bk-pillar-thumb {
  width: 100%;
  height: 95px;
  border-radius: var(--bk-radius-md);
  overflow: hidden;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.bk-pillar-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bk-pillar-info h3 {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--bk-blue-primary);
  margin-bottom: 6px;
  line-height: 1.25;
}

.bk-pillar-card:nth-child(2) .bk-pillar-info h3 {
  color: #c94406;
}

.bk-pillar-info p {
  font-size: 0.8rem;
  color: #475569;
  line-height: 1.45;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.bk-pillar-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--bk-orange);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: var(--bk-radius-sm);
  border: none;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(242, 88, 22, 0.25);
  transition: all 0.25s ease;
}

.bk-pillar-btn:hover {
  background-color: var(--bk-orange-hover);
  color: #ffffff;
  transform: translateX(3px);
  box-shadow: 0 4px 12px rgba(242, 88, 22, 0.4);
}

.bk-pillar-btn:active {
  transform: translateX(0);
}


/* ---------- 4. VẬT TƯ TIÊU HAO CATEGORIES GRID ---------- */
.bk-categories-section {
  padding: 25px 0 45px 0;
  background-color: #ffffff;
}

.bk-section-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.bk-section-header-row .bk-section-title {
  margin-bottom: 0;
}

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

.bk-cat-card {
  background: #ffffff;
  border: 1px solid #e5eff9;
  border-radius: var(--bk-radius-md);
  padding: 14px 14px 16px 14px;
  box-shadow: 0 2px 8px rgba(11, 78, 162, 0.04);
  transition: var(--bk-transition);
  display: flex;
  flex-direction: column;
}

.bk-cat-card:hover {
  border-color: #b9d7fa;
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(11, 78, 162, 0.1);
}

.bk-cat-card-img {
  width: 100%;
  height: 85px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
  overflow: hidden;
}

.bk-cat-card-img img {
  max-height: 80px;
  width: auto;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.bk-cat-card:hover .bk-cat-card-img img {
  transform: scale(1.05);
}

.bk-cat-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}

.bk-cat-card h3 {
  font-size: 0.95rem;
  font-weight: 800;
  color: #0b3d7a;
  line-height: 1.25;
}

.bk-cat-arrow-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: var(--bk-orange);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--bk-transition);
}

.bk-cat-arrow-icon svg {
  width: 12px;
  height: 12px;
}

.bk-cat-card:hover .bk-cat-arrow-icon {
  background-color: var(--bk-orange-hover);
  transform: translateX(2px);
}

.bk-cat-card p {
  font-size: 0.76rem;
  color: #64748b;
  line-height: 1.45;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}


/* ---------- 5. TWO COLUMN SECTION: ABOUT US + FEATURED PRODUCTS & NEWS ---------- */
.bk-split-section {
  padding: 20px 0 45px 0;
  background-color: #ffffff;
}

.bk-split-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 30px;
  align-items: start;
}

/* Left: About Us */
.bk-about-box {
  background: #ffffff;
  border-radius: var(--bk-radius-lg);
  padding: 0;
}

.bk-about-img {
  width: 100%;
  height: 200px;
  border-radius: var(--bk-radius-md);
  overflow: hidden;
  margin-bottom: 18px;
}

.bk-about-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bk-about-headline {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--bk-blue-primary);
  margin-bottom: 10px;
  line-height: 1.3;
}

.bk-about-desc {
  font-size: 0.85rem;
  color: #475569;
  line-height: 1.55;
  margin-bottom: 18px;
}

.bk-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 22px;
}

.bk-stat-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.bk-stat-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1.5px solid var(--bk-blue-primary);
  color: var(--bk-blue-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.bk-stat-icon svg {
  width: 16px;
  height: 16px;
}

.bk-stat-text strong {
  display: block;
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--bk-blue-primary);
  line-height: 1.1;
}

.bk-stat-text span {
  font-size: 0.72rem;
  color: #64748b;
  display: block;
  line-height: 1.2;
}

.bk-about-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--bk-orange);
  color: #ffffff;
  font-size: 0.88rem;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: var(--bk-radius-md);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(242, 88, 22, 0.25);
  transition: all 0.25s ease;
}

.bk-about-btn:hover {
  background-color: var(--bk-orange-hover);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(242, 88, 22, 0.35);
}

.bk-about-btn:active {
  transform: translateY(0);
}

/* Right Top: Featured Products */
.bk-featured-products-box {
  margin-bottom: 28px;
}

.bk-box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.bk-box-header h3 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--bk-blue-primary);
  text-transform: uppercase;
}

.bk-slider-nav {
  display: flex;
  gap: 6px;
}

.bk-nav-arrow-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: #475569;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--bk-transition);
}

.bk-nav-arrow-btn:hover {
  border-color: var(--bk-blue-primary);
  color: var(--bk-blue-primary);
  background-color: var(--bk-blue-light);
}

.bk-products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.bk-product-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: var(--bk-radius-md);
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: center;
  transition: var(--bk-transition);
}

.bk-product-card:hover {
  border-color: #93c5fd;
  transform: translateY(-3px);
  box-shadow: 0 8px 18px rgba(11, 78, 162, 0.08);
}

.bk-product-thumb {
  width: 100%;
  height: 75px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}

.bk-product-thumb img {
  max-height: 70px;
  width: auto;
  object-fit: contain;
}

.bk-product-name {
  font-size: 0.82rem;
  font-weight: 700;
  color: #0b3469;
  margin-bottom: 4px;
  line-height: 1.25;
  height: 32px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.bk-product-desc {
  font-size: 0.72rem;
  color: #64748b;
  margin-bottom: 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bk-product-btn {
  background: linear-gradient(135deg, #f25816 0%, #ff682e 100%);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 7px 12px;
  border-radius: var(--bk-radius-sm);
  border: none;
  cursor: pointer;
  display: block;
  width: 100%;
  box-shadow: 0 2px 6px rgba(242, 88, 22, 0.22);
  transition: all 0.2s ease;
}

.bk-product-btn:hover {
  background: linear-gradient(135deg, #d94608 0%, #f25816 100%);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(242, 88, 22, 0.35);
}

.bk-product-btn:active {
  transform: translateY(0);
}

/* Right Bottom: Featured News */
.bk-news-box {
  margin-top: 10px;
}

.bk-news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.bk-news-card {
  background: #ffffff;
  border: 1px solid #edf2f7;
  border-radius: var(--bk-radius-md);
  padding: 8px;
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 10px;
  align-items: center;
  transition: var(--bk-transition);
}

.bk-news-card:hover {
  border-color: #cbd5e1;
  background-color: #fafcff;
}

.bk-news-thumb {
  width: 80px;
  height: 60px;
  border-radius: var(--bk-radius-sm);
  overflow: hidden;
}

.bk-news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bk-news-info {
  display: flex;
  flex-direction: column;
}

.bk-news-date {
  font-size: 0.68rem;
  color: #94a3b8;
  margin-bottom: 2px;
}

.bk-news-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: #0b3469;
  line-height: 1.3;
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.bk-news-link {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--bk-orange);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.bk-news-link:hover {
  color: var(--bk-orange-hover);
}


/* ---------- 6. CLIENTS / PARTNERS STRIP ---------- */
.bk-partners-section {
  padding: 15px 0 35px 0;
  background-color: #ffffff;
}

.bk-partners-box {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: var(--bk-radius-md);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  overflow: hidden;
}

.bk-partners-strip {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 15px;
}

.bk-partner-item {
  display: flex;
  align-items: center;
  justify-content: center;
  filter: grayscale(10%);
  opacity: 0.9;
  transition: var(--bk-transition);
}

.bk-partner-item:hover {
  filter: grayscale(0%);
  opacity: 1;
}

.bk-partners-strip-img {
  max-height: 40px;
  width: 100%;
  object-fit: contain;
}


/* ---------- 7. COMMITMENTS / FEATURES BAR ---------- */
.bk-commitments-bar {
  background-color: #f1f7fe;
  border-top: 1px solid #dce8f5;
  border-bottom: 1px solid #dce8f5;
  padding: 18px 0;
}

.bk-commitments-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.bk-commit-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.bk-commit-icon {
  color: var(--bk-blue-primary);
  flex-shrink: 0;
}

.bk-commit-icon svg {
  width: 26px;
  height: 26px;
}

.bk-commit-text h4 {
  font-size: 0.82rem;
  font-weight: 700;
  color: #0b3469;
  line-height: 1.25;
}

.bk-commit-text p {
  font-size: 0.72rem;
  color: #64748b;
  margin: 0;
}


/* ---------- 8. QUICK QUOTE SECTION (NHẬN BÁO GIÁ NHANH) ---------- */
.bk-quick-quote-section {
  background: linear-gradient(90deg, #094793 0%, #0d5dbf 100%);
  color: #ffffff;
  padding: 24px 0;
}

.bk-quote-wrapper {
  display: grid;
  grid-template-columns: 1fr 2.4fr;
  align-items: center;
  gap: 25px;
}

.bk-quote-intro h3 {
  font-size: 1.25rem;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 4px;
  letter-spacing: 0.5px;
}

.bk-quote-intro p {
  font-size: 0.8rem;
  color: #dbeafe;
  line-height: 1.4;
  margin: 0;
}

.bk-quote-form {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1.2fr auto;
  gap: 10px;
  align-items: center;
}

.bk-input-group {
  position: relative;
  width: 100%;
}

.bk-input-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: #94a3b8;
  pointer-events: none;
}

.bk-input-icon svg {
  width: 14px;
  height: 14px;
}

.bk-form-control {
  width: 100%;
  background: #ffffff;
  border: 1px solid transparent;
  border-radius: var(--bk-radius-sm);
  padding: 9px 12px 9px 32px;
  font-size: 0.82rem;
  color: #1e293b;
  transition: var(--bk-transition);
}

.bk-form-control:focus {
  border-color: var(--bk-orange);
  box-shadow: 0 0 0 2px rgba(242, 88, 22, 0.2);
}

.bk-form-control::placeholder {
  color: #94a3b8;
}

.bk-quote-submit-btn {
  background: linear-gradient(135deg, #f25816 0%, #ff682e 100%);
  color: #ffffff;
  border: none;
  border-radius: var(--bk-radius-sm);
  padding: 10px 20px;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.18);
  transition: all 0.25s ease;
}

.bk-quote-submit-btn:hover {
  background: linear-gradient(135deg, #d94608 0%, #f25816 100%);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(242, 88, 22, 0.4);
}

.bk-quote-submit-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(242, 88, 22, 0.3);
}


/* ---------- 9. FOOTER ---------- */
.bk-site-footer {
  background-color: var(--bk-darker-bg);
  color: #e2e8f0;
  padding-top: 40px;
  font-size: 0.82rem;
}

.bk-footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 35px;
  padding-bottom: 35px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.bk-footer-brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.bk-footer-brand-logo img {
  height: 38px;
  width: auto;
  filter: brightness(0) invert(1);
}

.bk-footer-company-name {
  font-size: 0.95rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 10px;
}

.bk-footer-info-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: #94a3b8;
}

.bk-footer-info-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.bk-footer-info-list svg {
  width: 14px;
  height: 14px;
  color: var(--bk-orange);
  flex-shrink: 0;
  margin-top: 3px;
}

.bk-footer-widget h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
  position: relative;
}

.bk-footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.bk-footer-links a {
  color: #94a3b8;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--bk-transition);
}

.bk-footer-links a:hover {
  color: var(--bk-orange);
  transform: translateX(3px);
}

.bk-social-icons {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}

.bk-social-badge {
  width: 32px;
  height: 32px;
  border-radius: var(--bk-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: bold;
  font-size: 0.85rem;
  transition: var(--bk-transition);
}

.bk-social-badge:hover {
  transform: translateY(-2px);
}

.bk-badge-fb { background-color: #1877f2; }
.bk-badge-zalo { background-color: #0068ff; }
.bk-badge-yt { background-color: #ff0000; }
.bk-badge-in { background-color: #0a66c2; }

.bk-footer-bottom {
  padding: 16px 0;
  font-size: 0.76rem;
  color: #64748b;
}

.bk-footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.bk-footer-bottom-links {
  display: flex;
  align-items: center;
  gap: 16px;
}

.bk-footer-bottom-links a {
  color: #64748b;
}

.bk-footer-bottom-links a:hover {
  color: var(--bk-orange);
}


/* ---------- 10. MODALS (QUOTE & SEARCH) ---------- */
.bk-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--bk-transition);
  padding: 20px;
}

.bk-modal-backdrop.is-active {
  opacity: 1;
  visibility: visible;
}

.bk-modal-dialog {
  background: #ffffff;
  border-radius: var(--bk-radius-lg);
  max-width: 520px;
  width: 100%;
  padding: 28px;
  position: relative;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.bk-modal-backdrop.is-active .bk-modal-dialog {
  transform: translateY(0);
}

.bk-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  font-size: 1.4rem;
  color: #94a3b8;
  cursor: pointer;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.bk-modal-close:hover {
  background: #f1f5f9;
  color: var(--bk-orange);
}

.bk-modal-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--bk-blue-primary);
  margin-bottom: 6px;
}

.bk-modal-desc {
  font-size: 0.88rem;
  color: #64748b;
  margin-bottom: 20px;
}

.bk-form-field {
  margin-bottom: 14px;
}

.bk-form-field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: #334155;
  margin-bottom: 4px;
}

.bk-form-input, .bk-form-textarea {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: var(--bk-radius-sm);
  padding: 10px 14px;
  font-size: 0.9rem;
  color: #1e293b;
  transition: var(--bk-transition);
}

.bk-form-input:focus, .bk-form-textarea:focus {
  border-color: var(--bk-orange);
  box-shadow: 0 0 0 3px rgba(242, 88, 22, 0.15);
}

.bk-form-alert {
  padding: 10px 14px;
  border-radius: var(--bk-radius-sm);
  font-size: 0.85rem;
  margin-bottom: 14px;
  display: none;
}

.bk-form-alert.is-success {
  display: block;
  background-color: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.bk-form-alert.is-error {
  display: block;
  background-color: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}


/* ---------- 11. SUBPAGE TEMPLATES ---------- */
/* Inner Page Header */
.bk-page-banner {
  background: linear-gradient(135deg, #0b4ea2 0%, #073573 100%);
  color: #ffffff;
  padding: 45px 0 50px 0;
  position: relative;
  overflow: hidden;
}

.bk-page-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.bk-page-banner-content h1 {
  font-size: 2.2rem;
  font-weight: 900;
  margin-bottom: 10px;
  line-height: 1.2;
}

.bk-page-banner-content p {
  font-size: 0.95rem;
  color: #cbd5e1;
  max-width: 600px;
  margin-bottom: 18px;
}

.bk-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: #93c5fd;
}

.bk-breadcrumb a {
  color: #ffffff;
}

.bk-breadcrumb a:hover {
  color: var(--bk-orange);
}

/* Hotel & Apartment Card Styles (bkks1) */
.bk-apartment-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 24px;
}

.bk-apartment-card {
  background: #ffffff;
  border: 1px solid var(--bk-border);
  border-radius: var(--bk-radius-lg);
  overflow: hidden;
  box-shadow: var(--bk-shadow-sm);
  transition: var(--bk-transition);
  display: flex;
  flex-direction: column;
}

.bk-apartment-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--bk-shadow-md);
  border-color: #93c5fd;
}

.bk-apartment-thumb {
  width: 100%;
  height: 190px;
  overflow: hidden;
}

.bk-apartment-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.bk-apartment-card:hover .bk-apartment-thumb img {
  transform: scale(1.05);
}

.bk-apartment-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.bk-apartment-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--bk-blue-primary);
  margin-bottom: 6px;
}

.bk-apartment-desc {
  font-size: 0.82rem;
  color: #475569;
  line-height: 1.45;
  margin-bottom: 12px;
}

.bk-apartment-meta {
  display: flex;
  gap: 14px;
  font-size: 0.78rem;
  color: #64748b;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--bk-border);
}

.bk-apartment-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.bk-apartment-price {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--bk-orange);
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}


/* ---------- 12. RESPONSIVE MEDIA QUERIES ---------- */
@media (max-width: 1024px) {
  .bk-hero-wrapper {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .bk-hero-content {
    margin: 0 auto;
  }
  .bk-hero-features {
    justify-content: center;
  }
  .bk-pillars-grid {
    grid-template-columns: 1fr;
  }
  .bk-split-grid {
    grid-template-columns: 1fr;
  }
  .bk-categories-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .bk-products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .bk-quote-wrapper {
    grid-template-columns: 1fr;
  }
  .bk-quote-form {
    grid-template-columns: repeat(2, 1fr);
  }
  .bk-footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .bk-nav-desktop {
    display: none;
  }
  .bk-mobile-menu-toggle {
    display: block;
  }
  .bk-categories-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .bk-commitments-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .bk-quote-form {
    grid-template-columns: 1fr;
  }
  .bk-footer-grid {
    grid-template-columns: 1fr;
  }
  .bk-news-grid {
    grid-template-columns: 1fr;
  }
  .bk-hero-title {
    font-size: 1.8rem;
  }
  .bk-apartment-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .bk-categories-grid {
    grid-template-columns: 1fr;
  }
  .bk-products-grid {
    grid-template-columns: 1fr;
  }
  .bk-commitments-grid {
    grid-template-columns: 1fr;
  }
  .bk-stats-row {
    grid-template-columns: 1fr;
  }
}