/* ============================================
   HIỆP HƯNG - Website Ống Nhựa
   Style tham khảo: binhminhplastic.com.vn
                     nhuasieuthanh.com
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Barlow:wght@400;500;600;700;800;900&display=swap');

:root {
  --red: #C41E2A;
  --red-dark: #A01822;
  --red-light: #E63946;
  --navy: #0F2A4A;
  --navy-dark: #091D35;
  --navy-light: #1B3D60;
  --blue: #0058BB;
  --white: #fff;
  --gray-bg: #F4F6F8;
  --gray-border: #E2E5EA;
  --gray-text: #6B7280;
  --gray-dark: #374151;
  --black: #111;
  --font: 'Barlow', sans-serif;
  --max-w: 1260px;
  --header-h: 70px;
  --radius: 8px;
  --shadow: 0 2px 12px rgba(0, 0, 0, .08);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, .1);
  --transition: .3s ease;
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--gray-dark);
  background: var(--white);
  line-height: 1.65;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

button,
input,
textarea,
select {
  font-family: inherit;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
}

/* ====== HEADER ====== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 200;
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 229, 234, 0.4);
  transition: box-shadow var(--transition), background var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow);
  background: rgba(255, 255, 255, 0.75);
}

.header-top {
  background: var(--navy);
  padding: 6px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, .85);
}

.header-top .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-top a {
  color: rgba(255, 255, 255, .85);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.header-top a:hover {
  color: #fff;
}

.header-top-left {
  display: flex;
  gap: 24px;
}

.header-top-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.header-top-right a {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, .12);
}

.header-top-right a:hover {
  background: var(--red);
}

.header-top svg {
  width: 13px;
  height: 13px;
}

.header-main {
  height: var(--header-h);
}

.header-main .container {
  display: flex;
  align-items: center;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  height: 100%;
}

.logo img {
  height: 58px;
  width: auto;
  transition: transform var(--transition);
}

.logo:hover img {
  transform: scale(1.05);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-text strong {
  font-size: 18px;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: .5px;
}

.logo-text small {
  font-size: 11px;
  color: var(--gray-text);
  text-transform: uppercase;
  letter-spacing: .3px;
}

.nav-menu {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex: 1;
}

.nav-menu a {
  display: block;
  padding: 0 14px;
  line-height: var(--header-h);
  font-size: 14px;
  font-weight: 600;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: .3px;
  position: relative;
  transition: color var(--transition);
  white-space: nowrap;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 18px;
  right: 18px;
  height: 3px;
  background: var(--red);
  border-radius: 2px;
  transform: scaleX(0);
  transition: transform var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--red);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
  height: 100%;
  padding: 0 0 0 30px;
  /* Space for the left slant */
  margin-left: auto;
  /* Push to the right */
  z-index: 1;
}

.header-actions::before {
  content: '';
  position: absolute;
  top: -1px;
  bottom: -1px;
  left: 0;
  right: -100vw;
  background: linear-gradient(90deg, rgba(27, 61, 96, 0.85), rgba(15, 42, 74, 0.85));
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  clip-path: polygon(35px 0, 100% 0, 100% 100%, 0 100%);
  z-index: -1;
}

.header-search {
  display: flex;
  align-items: center;
  position: relative;
}

.header-search input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 13px;
  font-family: inherit;
  color: var(--white);
  width: 80px;
  padding: 6px 26px 6px 10px;
  border-radius: 4px;
}

.header-search input::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.header-search button {
  position: absolute;
  right: 5px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
}

.header-search button:hover {
  color: var(--red);
}

.header-search button svg {
  width: 14px;
  height: 14px;
}

.header-lang {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  padding: 0 14px;
  border-left: 1px solid rgba(255, 255, 255, 0.2);
  border-right: 1px solid rgba(255, 255, 255, 0.2);
  height: 24px;
  transition: color var(--transition);
  position: relative;
}

.header-lang svg {
  width: 14px;
  height: 14px;
  color: var(--white);
  transition: color var(--transition);
}

.header-lang:hover,
.header-lang:hover svg {
  color: var(--red);
}

.lang-dropdown-wrapper {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translate(-50%, 10px);
  padding-top: 15px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all var(--transition);
  z-index: 100;
}

.header-lang:hover .lang-dropdown-wrapper {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.lang-dropdown {
  background: var(--white);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius);
  padding: 8px 0;
  min-width: 120px;
  border: 1px solid var(--gray-border);
}

.lang-dropdown a {
  display: block;
  padding: 8px 20px;
  color: var(--gray-dark);
  font-size: 14px;
  font-weight: 500;
  text-align: center;
  transition: background var(--transition), color var(--transition);
}

.lang-dropdown a:hover {
  color: var(--red);
  background: var(--gray-bg);
}

.header-phone {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-weight: 700;
  font-size: 14px;
  color: var(--white);
  background: linear-gradient(90deg, var(--red), var(--red-dark));
  padding: 8px 18px;
  border-radius: 30px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.header-phone:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.header-phone-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-phone-icon svg {
  width: 16px;
  height: 16px;
  color: var(--white);
}

/* hamburger */
.hamburger {
  display: none;
  width: 28px;
  height: 20px;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
}

.hamburger span {
  display: block;
  height: 2.5px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger.open span {
  background: var(--navy);
}

.hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* ====== HERO SLIDER ====== */
.hero {
  position: relative;
  width: 100%;
  overflow: hidden;
  height: calc(100vh - var(--header-h) - 34px);
  min-height: 420px;
  max-height: 700px;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease;
}

.hero-slide.active {
  opacity: 1;
}

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

.hero-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .85);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  z-index: 5;
  transition: background var(--transition);
}

.hero-nav:hover {
  background: var(--white);
}

.hero-nav svg {
  width: 20px;
  height: 20px;
  color: var(--navy);
}

.hero-prev {
  left: 24px;
}

.hero-next {
  right: 24px;
}

.hero-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 5;
}

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .5);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.hero-dot.active {
  background: var(--white);
  width: 28px;
  border-radius: 5px;
}

/* ====== SECTION COMMON ====== */
.section {
  padding: 40px 0;
}

.section-alt {
  background: var(--gray-bg);
}

.section-dark {
  background: var(--navy);
  color: var(--white);
}

.section-head {
  text-align: left;
  margin-bottom: 24px;
}

.section-head.flex-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  text-align: left;
}

.subtitle {
  font-size: 13px;
  font-weight: 700;
  color: var(--red);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0;
  position: relative;
  display: inline-block;
}

.section-head:not(.flex-head) h2::after {
  content: '';
  display: block;
  width: 50px;
  height: 3px;
  background: var(--red);
  margin: 16px 0 0;
  border-radius: 2px;
}

.section-dark .section-head h2 {
  color: var(--white);
}

.section-head p {
  font-size: 15px;
  color: var(--gray-text);
  max-width: 560px;
  margin: 16px 0 0;
}

.section-head.flex-head p {
  margin: 16px 0 0;
  max-width: 700px;
}

.section-dark .section-head p {
  color: rgba(255, 255, 255, .65);
}

.btn-text-link {
  font-size: 14px;
  font-weight: 800;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: 1px;
  display: inline-flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
  transition: color 0.4s ease;
}

.section-dark .btn-text-link {
  color: var(--white);
}

.section-dark .btn-text-link .arrow {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
}

.btn-text-link .arrow {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gray-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy);
  transition: all 0.4s ease;
}

.btn-text-link .arrow svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition);
}

.btn-text-link:hover {
  color: var(--red);
}

.btn-text-link:hover .arrow {
  background: var(--red);
  color: var(--white);
}

.btn-text-link:hover .arrow svg {
  transform: translateX(4px);
}

/* ====== NEWS (Tin Tức - Sự Kiện) ====== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.news-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.news-card-img {
  height: 180px;
  overflow: hidden;
}

.news-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

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

.news-card-body {
  padding: 18px 20px;
}

.news-card-date {
  font-size: 12px;
  color: var(--gray-text);
  margin-bottom: 6px;
}

.news-card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--navy);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card:hover .news-card-title {
  color: var(--red);
}

.news-more {
  text-align: center;
  margin-top: 36px;
}

/* ====== PRODUCTS (Sản Phẩm) ====== */
.product-tabs {
  display: flex;
  justify-content: center;
  gap: 0;
  border-bottom: 2px solid var(--gray-border);
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.product-tab {
  padding: 12px 28px;
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-text);
  cursor: pointer;
  border: none;
  background: none;
  text-transform: uppercase;
  letter-spacing: .3px;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: color var(--transition), border-color var(--transition);
}

.product-tab:hover,
.product-tab.active {
  color: var(--red);
  border-bottom-color: var(--red);
}

.product-panel {
  display: none;
}

.product-panel.active {
  display: block;
}

.product-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.product-showcase-img {
  border-radius: var(--radius);
  overflow: hidden;
}

.product-showcase-img img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

.product-showcase-info h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 16px;
}

.product-showcase-info p {
  font-size: 14px;
  color: var(--gray-text);
  line-height: 1.8;
  margin-bottom: 20px;
}

.product-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border: 1px solid var(--gray-border);
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  color: var(--navy);
  transition: all var(--transition);
}

.product-link:hover {
  border-color: var(--red);
  color: var(--red);
  background: rgba(196, 30, 42, .04);
}

.product-link svg {
  width: 14px;
  height: 14px;
}

#product-categories {
  padding: 40px 0;
}

#product-categories .section-head {
  margin-bottom: 24px;
}

/* product category grid (Danh mục sản phẩm - Accordion Layout) */
.category-grid-ref {
  display: flex;
  flex-direction: row;
  height: 400px;
  gap: 16px;
  margin-top: 20px;
}

.category-card {
  flex: 1;
  background: var(--white);
  border-radius: 30px;
  border: 1px solid var(--gray-border);
  overflow: hidden;
  position: relative;
  transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 30px 20px;
  text-decoration: none;
}

.category-card:hover {
  flex: 3;
  background: var(--gray-bg);
  border-color: var(--red);
  box-shadow: 0 10px 40px rgba(196, 30, 42, 0.1);
}

/* Image */
.cat-img {
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.6);
  width: 300px;
  height: 300px;
  transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
  opacity: 0.5;
  filter: grayscale(100%);
  display: flex;
  justify-content: center;
  align-items: center;
  pointer-events: none;
}

.cat-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.category-card:hover .cat-img {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  filter: grayscale(0%);
}

/* Text Container */
.cat-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  text-align: center;
  position: relative;
  z-index: 2;
  transition: transform 0.5s ease;
  width: 100%;
}

.cat-info h3 {
  font-size: 16px;
  color: var(--navy);
  margin: 0;
  font-weight: 800;
  transition: all 0.5s ease;
  white-space: normal;
}

.category-card:hover .cat-info h3 {
  color: var(--red);
  font-size: 20px;
}

/* View Button */
.cat-view {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-text);
  font-size: 13px;
  font-weight: 800;
  gap: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;

  opacity: 0;
  max-height: 0;
  margin-top: 0;
  overflow: hidden;
  transition: all 0.4s ease;
  white-space: nowrap;
}

.cat-view-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy);
  transition: all 0.4s ease;
}

.cat-view-arrow svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition);
}

.category-card:hover .cat-view {
  opacity: 1;
  max-height: 30px;
  margin-top: 6px;
  color: var(--red);
}

.category-card:hover .cat-view-arrow {
  color: var(--red);
}

.category-card:hover .cat-view-arrow svg {
  transform: translateX(4px);
}

@media (max-width: 1024px) {
  .category-grid-ref {
    height: 350px;
  }

  .category-card:hover {
    flex: 2;
  }

  .cat-img {
    width: 200px;
    height: 200px;
  }

  .cat-info h3 {
    font-size: 16px;
    white-space: normal;
  }

  .category-card:hover .cat-info h3 {
    font-size: 22px;
  }
}

@media (max-width: 768px) {
  .category-grid-ref {
    flex-direction: column;
    height: 600px;
  }

  .category-card {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-radius: 16px;
  }

  .category-card:hover {
    flex: 2;
  }

  .cat-img {
    top: 50%;
    left: 70%;
    width: 120px;
    height: 120px;
    transform: translate(-50%, -50%) scale(1);
    filter: grayscale(0%);
    opacity: 1;
  }

  .cat-info {
    align-items: flex-start;
    text-align: left;
    width: auto;
  }

  .category-card:hover .cat-info h3 {
    transform: translateY(0);
    font-size: 20px;
  }

  .cat-view {
    position: relative;
    bottom: 0;
    transform: translateY(0);
    opacity: 1;
    font-size: 12px;
    margin-top: 5px;
  }
}

/* product cards (Sản phẩm bán chạy) - Reference Style with Slider */
.product-slider-wrapper {
  position: relative;
}

.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  background: rgba(15, 42, 74, 0.6);
  /* Xanh mờ / Translucent Navy */
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  color: var(--white);
}

.slider-btn:hover {
  background: var(--red);
  color: var(--white);
  transform: translateY(-50%) scale(1.08);
}

.slider-prev {
  left: -24px;
}

.slider-next {
  right: -24px;
}

.product-card-grid {
  display: flex;
  overflow-x: auto;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  gap: 24px;
  padding-bottom: 20px;
  -ms-overflow-style: none;
  /* IE/Edge */
  scrollbar-width: none;
  /* Firefox */
}

.product-card-grid::-webkit-scrollbar {
  display: none;
  /* Chrome/Safari */
}

.product-card {
  flex: 0 0 calc(20% - 19.2px);
  /* 5 cards per view */
  scroll-snap-align: start;
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.product-card>a {
  display: flex;
  flex-direction: column;
  height: 100%;
  text-decoration: none;
  color: inherit;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.product-card-img {
  background: #F2F1EC;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  position: relative;
  transition: all 0.3s ease;
}

.product-card-img img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  transition: transform 0.4s ease;
  mix-blend-mode: multiply;
  filter: brightness(1.15) contrast(1.2);
}

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

.product-card-info {
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  position: relative;
  overflow: hidden;
}

.product-card-info::before {
  content: '';
  position: absolute;
  bottom: -40px;
  right: -40px;
  width: 140px;
  height: 140px;
  background: var(--red);
  border-radius: 50%;
  opacity: 0;
  transform: scale(0.2);
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.6s ease;
  pointer-events: none;
  z-index: 0;
}

.product-card:hover .product-card-info::before {
  opacity: 0.1;
  transform: scale(1);
}

.product-card-info h3 {
  font-size: 14px;
  font-weight: 800;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
  transition: color var(--transition);
  position: relative;
  z-index: 1;
}

.product-card:hover .product-card-info h3 {
  color: var(--red);
}

.product-desc {
  font-size: 13px;
  color: #666;
  line-height: 1.5;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.product-bottom {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  position: relative;
  z-index: 1;
}

.product-price {
  display: none;
}

.add-btn {
  height: 28px;
  background: var(--navy);
  color: #fff;
  border-radius: 28px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 0;
  max-width: 28px;
  transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
  overflow: hidden;
  position: relative;
}

.add-btn-text {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  white-space: nowrap;
  opacity: 0;
  transform: translateX(-10px);
  transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
  margin-left: 28px;
}

.add-btn svg {
  width: 14px;
  height: 14px;
  stroke-width: 2.5;
  flex-shrink: 0;
  position: absolute;
  left: 7px;
}

.product-card:hover .add-btn {
  background: var(--red);
  max-width: 130px;
  padding-right: 12px;
}

.product-card:hover .add-btn-text {
  opacity: 1;
  transform: translateX(0);
}

@media (max-width: 1024px) {
  .product-card {
    flex: 0 0 calc(50% - 12px);
  }

  .slider-prev {
    left: -10px;
  }

  .slider-next {
    right: -10px;
  }
}

@media (max-width: 576px) {
  .product-card {
    flex: 0 0 68%;
  }

  .product-card .add-btn {
    display: none;
  }
}

.btn-red {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  background: var(--red);
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 4px;
  transition: all var(--transition);
}

.btn-red:hover {
  background: var(--navy);
  color: var(--white);
  box-shadow: var(--shadow-lg);
}

/* ====== MODERN ABOUT ====== */
.about-modern {
  padding: 100px 0;
  background: var(--white);
  overflow: hidden;
}

.about-modern-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 80px;
  align-items: center;
}

.about-modern-content {
  padding-right: 20px;
}

.about-modern-content .subtitle {
  display: inline-block;
  padding: 6px 14px;
  color: var(--red);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-radius: 4px;
  margin-bottom: 24px;
}

.about-modern-content h2 {
  font-size: 48px;
  font-weight: 900;
  color: var(--navy);
  line-height: 1.1;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.about-tagline {
  font-size: 20px;
  font-weight: 600;
  color: var(--gray-dark);
  line-height: 1.4;
  margin-bottom: 20px;
}

.about-modern-content .about-desc {
  font-size: 15px;
  color: var(--gray-text);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 90%;
}

.about-modern-images {
  display: flex;
  gap: 20px;
  height: 500px;
  position: relative;
}

.about-modern-images::after {
  content: '';
  position: absolute;
  top: -30px;
  right: -30px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(196, 30, 42, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
  z-index: 0;
}

.img-main {
  flex: 1.5;
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  z-index: 1;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  transform: translateY(20px);
}

.img-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.img-main:hover img {
  transform: scale(1.05);
}

.img-side {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
  z-index: 1;
}

.img-side img {
  width: 100%;
  height: calc(50% - 10px);
  object-fit: cover;
  border-radius: 20px;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
  transition: transform 0.8s ease;
}

.img-side img:hover {
  transform: scale(1.05);
}

@media (max-width: 991px) {
  .about-modern-layout {
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .about-modern-content {
    padding-right: 0;
  }

  .about-modern-content .about-desc {
    max-width: 100%;
    text-align: justify;
  }

  .about-modern-images {
    height: 400px;
  }
}

@media (max-width: 576px) {
  .about-modern-layout {
    gap: 16px;
  }

  .about-modern-content h2 {
    font-size: 36px;
  }

  .about-tagline {
    font-size: 18px;
  }

  .about-modern-content .about-desc {
    margin-bottom: 12px;
  }

  .about-modern-images {
    height: 280px;
    gap: 10px;
    flex-direction: row;
  }

  .img-side {
    flex-direction: column;
    gap: 10px;
    height: 100%;
  }

  .img-side img {
    height: calc(50% - 5px);
    border-radius: 12px;
  }

  .img-main {
    border-radius: 12px;
  }

  .section-head.flex-head .btn-text-link {
    font-size: 0;
    gap: 0;
  }

  .news-grid {
    display: flex;
    overflow-x: auto;
    scroll-behavior: smooth;
    padding-bottom: 8px;
    scrollbar-width: none;
  }

  .news-grid::-webkit-scrollbar {
    display: none;
  }

  .news-card {
    flex: 0 0 72%;
  }
}

.btn-text-link {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: color var(--transition);
}

.btn-text-link .arrow {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(15, 42, 74, 0.08);
  color: var(--navy);
  transition: all var(--transition);
}

.btn-text-link .arrow svg {
  width: 18px;
  height: 18px;
}

.btn-text-link:hover {
  color: var(--red);
}

.btn-text-link:hover .arrow {
  background: var(--red);
  color: var(--white);
  transform: translateX(8px);
  box-shadow: 0 6px 16px rgba(196, 30, 42, 0.3);
}

.stats-bar {
  background: url('../images/about_warehouse.png') center/cover no-repeat;
  background-attachment: fixed;
  padding: 80px 0;
  position: relative;
}

.stats-bar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(225, 240, 255, 0.4) 0%, rgba(195, 225, 250, 0.3) 100%);
  /* Lớp phủ xanh nhạt rất mỏng */
  pointer-events: none;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
  z-index: 1;
}

.stat-box-ref {
  background: rgba(255, 255, 255, 0.55);
  /* Glassmorphism background */
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  border-radius: 16px;
  padding: 36px 24px;
  text-align: center;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  z-index: 1;
}

.stat-box-ref:hover {
  transform: translateY(-10px) scale(1.02);
  background: rgba(255, 255, 255, 0.85);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.stat-num-ref {
  font-size: 56px;
  font-weight: 900;
  line-height: 1;
  color: var(--red);
  display: inline-block;
  margin-bottom: 24px;
}

.stat-num-ref .symbol {
  font-size: 34px;
  font-weight: 700;
  margin-left: 2px;
}

.stat-icon-top {
  margin-bottom: 16px;
  color: var(--red);
}

.stat-icon-top svg {
  width: 48px;
  height: 48px;
  stroke-width: 1.5;
}

.stat-info-ref h4 {
  font-size: 16px;
  font-weight: 800;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0;
  position: relative;
  display: inline-block;
}

@media(max-width:1200px) {
  .stat-num-ref {
    font-size: 44px;
  }

  .stat-box-ref {
    padding: 24px 16px;
  }
}

@media(max-width:768px) {
  .stats-row {
    gap: 12px;
  }

  .stat-box-ref {
    padding: 16px 10px;
    border-radius: 12px;
  }

  .stat-icon-top {
    margin-bottom: 8px;
  }

  .stat-icon-top svg {
    width: 30px;
    height: 30px;
  }

  .stat-num-ref {
    font-size: 28px;
    margin-bottom: 8px;
  }

  .stat-num-ref .symbol {
    font-size: 18px;
  }

  .stat-info-ref h4 {
    font-size: 11px;
    letter-spacing: 0.5px;
  }
}

/* ====== PRICE TABLE ====== */
.price-wrap {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.price-table {
  width: 100%;
  border-collapse: collapse;
}

.price-table thead {
  background: var(--navy);
}

.price-table th {
  padding: 14px 16px;
  text-align: left;
  font-size: 13px;
  font-weight: 600;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: .3px;
}

.price-table td {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--gray-dark);
  border-bottom: 1px solid var(--gray-border);
}

.price-table tbody tr:hover {
  background: var(--gray-bg);
}

.price-table .price-val {
  color: var(--red);
  font-weight: 600;
}

.price-actions {
  text-align: center;
  margin-top: 28px;
  display: flex;
  justify-content: center;
  gap: 12px;
}

/* ====== PARTNERS ====== */
.partners-strip {
  padding: 40px 0;
  background: var(--gray-bg);
  overflow: hidden;
}

.partners-track {
  display: flex;
  align-items: center;
  gap: 60px;
  animation: marquee 25s linear infinite;
  width: max-content;
}

.partners-track span {
  font-size: 20px;
  font-weight: 700;
  color: var(--gray-text);
  white-space: nowrap;
  opacity: .45;
  transition: opacity var(--transition);
}

.partners-track span:hover {
  opacity: 1;
}

@keyframes marquee {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-50%);
  }
}

/* ====== CONTACT ====== */
.contact-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-info h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 20px;
}

.contact-info p {
  font-size: 14px;
  color: var(--gray-text);
  margin-bottom: 20px;
  line-height: 1.8;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-list-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.contact-list-item .c-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  flex-shrink: 0;
  background: rgba(196, 30, 42, .06);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-list-item .c-icon svg {
  width: 18px;
  height: 18px;
  color: var(--red);
}

.contact-list-item .c-text strong {
  display: block;
  font-size: 14px;
  color: var(--navy);
  margin-bottom: 2px;
}

.contact-list-item .c-text span,
.contact-list-item .c-text a {
  font-size: 13px;
  color: var(--gray-text);
}

.contact-list-item .c-text a:hover {
  color: var(--red);
}

.contact-map {
  border-radius: var(--radius);
  overflow: hidden;
  height: 200px;
  box-shadow: var(--shadow);
  margin-top: 4px;
}

.contact-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.contact-form {
  background: var(--gray-bg);
  padding: 28px;
  border-radius: var(--radius);
}

.contact-form h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

.form-group {
  margin-bottom: 12px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 4px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--gray-border);
  border-radius: 6px;
  font-size: 13px;
  color: var(--gray-dark);
  background: var(--white);
  outline: none;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--red);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

/* ====== BUTTONS ====== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 11px 26px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 6px;
  border: 1.5px solid transparent;
  transition: all var(--transition);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: .3px;
}

.btn-red {
  background: var(--red);
  color: var(--white);
  border-color: var(--red);
}

.btn-red:hover {
  background: var(--red-dark);
  border-color: var(--red-dark);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}

.btn-outline:hover {
  background: var(--navy);
  color: var(--white);
}

.btn-white-outline {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}

.btn-white-outline:hover {
  background: var(--white);
  color: var(--navy);
}

.btn svg {
  width: 14px;
  height: 14px;
}

/* ====== FOOTER ====== */
.footer {
  background: #ffffff;
  color: var(--gray-text);
  padding: 70px 0 0;
  position: relative;
  overflow: hidden;
}

.footer::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--red) 0%, var(--red) 20%, var(--navy) 20%, var(--navy) 100%);
  z-index: 2;
}

.footer::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='%230f2a4a' fill-opacity='0.04' d='M0,192L48,176C96,160,192,128,288,138.7C384,149,480,203,576,213.3C672,224,768,192,864,170.7C960,149,1056,139,1152,160C1248,181,1344,235,1392,261.3L1440,288L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z'%3E%3C/path%3E%3Cpath fill='%23c41e2a' fill-opacity='0.04' d='M0,64L48,85.3C96,107,192,149,288,160C384,171,480,149,576,149.3C672,149,768,171,864,181.3C960,192,1056,192,1152,176C1248,160,1344,128,1392,112L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z'%3E%3C/path%3E%3C/svg%3E") no-repeat bottom center;
  background-size: cover;
  z-index: 0;
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 32px;
  padding-bottom: 40px;
  position: relative;
  z-index: 1;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 800;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--red);
  display: inline-block;
}

.footer-about-text {
  font-size: 13px;
  line-height: 1.8;
  margin-bottom: 16px;
  color: var(--gray-text);
}

.footer-social {
  display: flex;
  gap: 8px;
}

.footer-social a {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: all var(--transition);
}

.footer-social a:hover {
  background: var(--red);
  color: #fff;
}

.footer-social svg {
  width: 14px;
  height: 14px;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul a {
  font-size: 13px;
  color: var(--gray-text);
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-col ul a::before {
  content: '›';
  color: var(--red);
  font-weight: 700;
}

.footer-col ul a:hover {
  color: var(--red);
  padding-left: 4px;
}

.footer-contact-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--gray-text);
}

.footer-contact-row svg {
  width: 14px;
  height: 14px;
  color: var(--red);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-contact-row a {
  color: var(--gray-text);
}

.footer-contact-row a:hover {
  color: var(--red);
}

.footer-bottom {
  border-top: 1px solid rgba(15, 42, 74, 0.1);
  padding: 16px 0;
  text-align: center;
  font-size: 12px;
  color: var(--gray-text);
  position: relative;
  z-index: 1;
}

/* ====== FLOATING ====== */
.floating {
  position: fixed;
  bottom: 74px;
  right: 20px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.float-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  border: none;
  transition: transform var(--transition);
  animation: pulse-ring 2s infinite;
}

.float-btn:hover {
  transform: scale(1.1);
}

.float-btn.facebook {
  background: #1877F2;
  color: #fff;
  --pulse-rgb: 24, 119, 242;
}

.float-btn.zalo {
  background: #0068FF;
  color: #fff;
  --pulse-rgb: 0, 104, 255;
}

.float-btn.phone {
  background: var(--red);
  color: #fff;
  --pulse-rgb: 196, 30, 42;
}

.float-btn svg {
  width: 20px;
  height: 20px;
}

@keyframes pulse-ring {
  0% {
    box-shadow: 0 0 0 0 rgba(var(--pulse-rgb), 0.5);
  }

  70% {
    box-shadow: 0 0 0 12px rgba(var(--pulse-rgb), 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(var(--pulse-rgb), 0);
  }
}

.back-top {
  position: fixed;
  bottom: 20px;
  right: 21px;
  z-index: 90;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--transition);
  box-shadow: var(--shadow);
}

.back-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-top:hover {
  background: var(--red);
}

.back-top svg {
  width: 18px;
  height: 18px;
}

/* ====== SCROLL ANIMATIONS ====== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media(max-width:1024px) {
  .header-search {
    position: static;
  }

  .header-search input {
    display: none;
  }

  .header-search.active input {
    display: block;
    position: absolute;
    top: 100%;
    right: 0;
    width: 250px;
    padding: 12px 14px;
    margin-top: -8px;
    background: var(--white);
    color: var(--navy);
    border-radius: 6px;
    border: 1px solid var(--gray-border);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    z-index: 150;
  }

  .header-search.active input::placeholder {
    color: var(--gray-text);
  }

  .header-search button {
    position: static;
    transform: none;
    padding: 0 5px;
  }

  .header-lang span {
    display: none;
  }

  .header-lang svg:last-child {
    display: none;
  }

  .header-lang {
    padding: 0 10px;
    border: none;
  }

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

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

  .product-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .about-row {
    grid-template-columns: 1fr;
  }

  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .nav-menu a {
    padding: 0 12px;
    font-size: 13px;
  }
}

@media(max-width:768px) {
  .header-top {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100vh;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 30px 24px 24px;
    box-shadow: var(--shadow-lg);
    transition: right var(--transition);
    z-index: 200;
    gap: 0;
  }

  .hamburger {
    position: relative;
    z-index: 201;
  }

  .nav-menu.open {
    right: 0;
  }

  .nav-menu a {
    line-height: 1;
    padding: 14px 0;
    border-bottom: 1px solid var(--gray-border);
  }

  .nav-menu a::after {
    display: none;
  }

  .header-actions .header-phone {
    display: none;
  }

  .hero {
    height: 50vw;
    min-height: 260px;
    max-height: 420px;
  }

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

  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .contact-row {
    grid-template-columns: 1fr;
  }

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

  .product-tabs {
    justify-content: flex-start;
    overflow-x: auto;
    gap: 0;
    flex-wrap: nowrap;
  }

  .product-tab {
    white-space: nowrap;
    padding: 10px 18px;
    font-size: 12px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 30px 0;
  }

  .section-head h2 {
    font-size: 22px;
  }

  .stat-box .stat-num {
    font-size: 30px;
  }
}

@media(max-width:480px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero {
    height: 56vw;
  }

  .hero-nav {
    width: 36px;
    height: 36px;
  }

  .hero-prev {
    left: 10px;
  }

  .hero-next {
    right: 10px;
  }
}

/* overlay for mobile menu */
.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, .4);
  z-index: 190;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.mobile-overlay.show {
  opacity: 1;
  pointer-events: all;
}

/* ====== SUB-PAGES ====== */
.page-banner {
  background: var(--navy);
  padding: 40px 0;
  text-align: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('../images/hero_banner.png') center/cover;
  opacity: 0.15;
}

.page-banner h1 {
  font-size: 36px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  z-index: 2;
  margin-bottom: 12px;
}

.breadcrumb {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, .7);
}

.breadcrumb a {
  color: var(--white);
  font-weight: 500;
  transition: color var(--transition);
}

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

.breadcrumb span {
  opacity: 0.5;
}

.page-content {
  padding: 40px 0;
}

.sidebar-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
}

.sidebar-menu {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.sidebar-title {
  background: var(--navy);
  color: var(--white);
  padding: 16px 20px;
  font-weight: 700;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.sidebar-list {
  list-style: none;
}

.sidebar-list li {
  border-bottom: 1px solid var(--gray-border);
}

.sidebar-list li:last-child {
  border-bottom: none;
}

.sidebar-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--navy);
  transition: all var(--transition);
}

.sidebar-list a:hover,
.sidebar-list a.active {
  color: var(--red);
  padding-left: 26px;
  background: rgba(196, 30, 42, .04);
}

.sidebar-list a::after {
  content: '+';
  font-size: 16px;
  font-weight: 400;
  color: var(--gray-text);
}

.sidebar-list a:hover::after,
.sidebar-list a.active::after {
  color: var(--red);
}

@media(max-width:992px) {
  .sidebar-layout {
    grid-template-columns: 1fr;
  }
}

/* Special Premium Dark Background */
.special-bg {
  background: linear-gradient(135deg, #0B1E36 0%, #153A66 100%);
  position: relative;
  overflow: hidden;
  padding-top: 40px;
  padding-bottom: 40px;
}

.special-bg::before {
  content: '';
  position: absolute;
  top: -150px;
  right: -100px;
  left: auto;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle at center, rgba(196, 30, 42, 0.4) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

.special-bg::after {
  content: '';
  position: absolute;
  bottom: -200px;
  right: -150px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle at center, rgba(255, 255, 255, 0.1) 0%, transparent 65%);
  pointer-events: none;
  z-index: 1;
}

.special-bg .container {
  position: relative;
  z-index: 2;
}

/* Override text colors for dark background */
.special-bg .section-head h2 {
  color: #ffffff !important;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.special-bg .section-head a {
  color: rgba(255, 255, 255, 0.8) !important;
}

.special-bg .section-head a:hover {
  color: #ffffff !important;
}

/* ===================== CLIENTS (KHÁCH HÀNG TIÊU BIỂU) ===================== */
.clients-section {
  background: linear-gradient(115deg, #090e17 0%, #090e17 35%, #d58d19 45%, #71201b 50%, #35144b 60%, #0e3868 75%, #071930 100%);
  padding: 40px 0;
  position: relative;
  overflow: hidden;
}

.clients-container {
  display: flex;
  align-items: center;
  gap: 60px;
}

.clients-title {
  flex-shrink: 0;
  color: #fff;
}

.clients-title h2 {
  font-weight: 800;
  margin: 0;
  font-size: 32px;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.clients-slider-wrapper {
  flex-grow: 1;
  display: flex;
  align-items: center;
  gap: 20px;
  overflow: hidden;
}

.clients-slider {
  display: flex;
  gap: 20px;
  flex-grow: 1;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 10px 0;
}

.clients-slider::-webkit-scrollbar {
  display: none;
}

.client-card {
  flex: 0 0 160px;
  height: 90px;
  background: #fff;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.client-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.client-logo {
  font-weight: 800;
  font-size: 18px;
  color: #333;
  text-align: center;
  line-height: 1.1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

/* Fake Logos Styling */
.client-logo.masan {
  color: #d02028;
  font-size: 24px;
  position: relative;
  font-style: italic;
  letter-spacing: -0.5px;
}

.client-logo.masan span {
  display: none;
}

.client-logo.thinhphat {
  color: #0071ce;
  font-size: 18px;
  gap: 6px;
}

.client-logo.thinhphat svg {
  width: 24px;
  height: 24px;
}

.client-logo.ur {
  color: #e31837;
  font-size: 14px;
  gap: 6px;
}

.client-logo.ur .ur-icon {
  font-size: 28px;
  font-weight: 900;
  letter-spacing: -2px;
}

.client-logo.ur .ur-text {
  display: flex;
  flex-direction: column;
  text-align: left;
  line-height: 1.1;
  font-size: 11px;
  font-weight: 700;
}

.client-logo.ajinomoto {
  color: #d61820;
  font-size: 18px;
  letter-spacing: 1.5px;
}

.client-logo.acecook img {
  max-height: 40px;
  opacity: 0.7;
}

.client-next-btn {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--red);
  border: none;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  transition: background 0.3s ease, transform 0.2s ease;
}

.client-next-btn:hover {
  background: var(--red-dark);
  transform: scale(1.05);
}

.client-next-btn svg {
  width: 22px;
  height: 22px;
}

@media (max-width: 992px) {
  .clients-container {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .clients-slider-wrapper {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .clients-title h2 {
    font-size: 22px;
  }

  .client-card {
    flex: 0 0 130px;
    height: 70px;
  }

  .client-next-btn {
    display: none;
  }
}

/* ===================== PROJECTS (DỰ ÁN) ===================== */
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.project-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.project-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.project-info {
  padding: 20px;
}

.project-info h3 {
  font-size: 18px;
  color: var(--navy);
  margin-bottom: 8px;
}

.project-info p {
  color: var(--gray-text);
  font-size: 14px;
  margin: 0;
}

@media (max-width: 992px) {
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .project-grid {
    grid-template-columns: 1fr;
  }
}

/* ===================== QUOTE FORM ===================== */
.quote-wrapper {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 60px;
  align-items: center;
}

@media (max-width: 992px) {
  .quote-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.product-desc {
  margin-bottom: 4px !important;
}

.contact-quote {
  font-size: 13px;
  color: var(--red);
  font-weight: 600;
  margin-top: 4px;
  margin-bottom: 4px;
  font-style: italic;
  letter-spacing: 0.2px;
}