/* ==========================================================================
   MAI XEP GREEN - MAIN STYLESHEET
   ========================================================================== */

/* Top Bar */
.top-bar {
  background-color: var(--dark-green);
  color: #ffffff;
  font-size: 14px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.top-info {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.top-info-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.top-info-item svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.top-hotline-highlight {
  background-color: var(--accent-gold);
  color: #1e293b;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Header & Navigation */
.site-header {
  background-color: #ffffff;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0;
  height: 75px;
  position: relative;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary-green), var(--dark-green));
  color: white;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(22, 163, 74, 0.3);
}

.site-logo-icon svg {
  width: 28px;
  height: 28px;
  fill: white;
}

.site-logo-text {
  display: flex;
  flex-direction: column;
}

.site-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--dark-green);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  line-height: 1.1;
}

.site-tagline {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

.main-navigation {
  margin: 0 12px;
  height: 100%;
  display: flex;
  align-items: center;
}

.main-navigation > ul {
  display: flex;
  align-items: center;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  height: 100%;
}

.main-navigation > ul > li {
  white-space: nowrap;
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
}

.main-navigation > ul > li > a {
  color: var(--text-dark);
  font-weight: 600;
  font-size: 14.5px;
  padding: 24px 0;
  position: relative;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.menu-arrow {
  font-size: 9px;
  margin-left: 3px;
  transition: transform 0.25s ease;
  display: inline-block;
  opacity: 0.7;
}

.main-navigation li.menu-item-has-children:hover > a .menu-arrow,
.main-navigation li.submenu-open > a .menu-arrow {
  transform: rotate(180deg);
  color: var(--primary-green);
  opacity: 1;
}

.main-navigation a:hover,
.main-navigation li.current-menu-item > a {
  color: var(--primary-green);
}

.main-navigation > ul > li > a::after {
  content: '';
  position: absolute;
  bottom: 12px;
  left: 0;
  width: 0;
  height: 3px;
  background-color: var(--primary-green);
  border-radius: 2px;
  transition: width 0.2s ease;
}

.main-navigation a:hover::after,
.main-navigation li.current-menu-item > a::after {
  width: 100%;
}

/* =============================================================
   Desktop Sub-menu Dropdown Styling (PC) - Clean Gap No Overlap
   ============================================================= */
.main-navigation .sub-menu {
  position: absolute;
  top: calc(100% - 6px);
  left: 0;
  min-width: 255px;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(0, 0, 0, 0.05);
  border-top: 3.5px solid var(--primary-green);
  padding: 8px 0;
  margin: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.22s cubic-bezier(0.165, 0.84, 0.44, 1);
  z-index: 9999;
}

/* Transparent hover bridge element so moving cursor down to sub-menu is seamless */
.main-navigation .sub-menu::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 0;
  right: 0;
  height: 12px;
  background: transparent;
}

.main-navigation li.menu-item-has-children:hover > .sub-menu,
.main-navigation li:hover > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.main-navigation .sub-menu li {
  width: 100%;
  margin: 0;
  padding: 0;
}

.main-navigation .sub-menu li a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 18px;
  color: #334155;
  font-size: 13.5px;
  font-weight: 600;
  transition: all 0.2s ease;
  white-space: nowrap;
  border-bottom: 1px solid #f1f5f9;
}

.main-navigation .sub-menu li:last-child a {
  border-bottom: none;
}

.main-navigation .sub-menu li a::after {
  display: none !important;
}

.main-navigation .sub-menu li a:hover {
  background: #f0fdf4;
  color: var(--primary-green);
  padding-left: 22px;
}

/* =============================================================
   Header Tooltip Popup cho Nút Tính Giá / Bảng Giá
   ============================================================= */
.main-navigation a[href*="tinh-gia"],
.main-navigation a[href*="#tinh-gia"],
.has-calc-tooltip {
  position: relative !important;
}

.nav-item-tooltip {
  position: absolute;
  top: calc(100% - 10px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  background: #0f172a;
  color: #ffffff;
  font-size: 11.5px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 20px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
  z-index: 99999;
  border: 1px solid rgba(255, 255, 255, 0.15);
  line-height: 1.3;
}

.nav-item-tooltip::before {
  content: '';
  position: absolute;
  top: -5px;
  left: 50%;
  transform: translateX(-50%);
  border-width: 0 5px 5px 5px;
  border-style: solid;
  border-color: transparent transparent #0f172a transparent;
}

.main-navigation a:hover .nav-item-tooltip,
.has-calc-tooltip:hover .nav-item-tooltip,
.main-navigation li:hover > a .nav-item-tooltip {
  opacity: 1 !important;
  visibility: visible !important;
  transform: translateX(-50%) translateY(0) !important;
}





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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 14.5px;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: none;
  transition: all 0.25s ease;
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.2;
}

.btn svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
}

.btn-primary {
  background-color: var(--primary-green);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(22, 163, 74, 0.3);
}

.btn-primary:hover {
  background-color: var(--dark-green);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(22, 163, 74, 0.4);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-hover));
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.btn-accent:hover {
  background: linear-gradient(135deg, var(--accent-gold-hover), #b45309);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--primary-green);
  color: var(--primary-green);
}

.btn-outline:hover {
  background-color: var(--primary-green);
  color: #ffffff;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.mobile-toggle svg {
  width: 28px;
  height: 28px;
  fill: var(--text-dark);
}

/* Hero Section */
.hero-section {
  background: linear-gradient(135deg, #052e16 0%, #14532d 40%, #166534 100%);
  color: #ffffff;
  padding: 60px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  background: radial-gradient(circle at 80% 20%, rgba(34, 197, 94, 0.15) 0%, transparent 50%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 20px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-title {
  font-size: 42px;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-title span {
  color: var(--accent-gold);
}

.hero-desc {
  font-size: 18px;
  opacity: 0.9;
  margin-bottom: 30px;
  line-height: 1.6;
}

.hero-benefits {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 30px;
}

.benefit-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
}

.benefit-item svg {
  width: 20px;
  height: 20px;
  fill: var(--accent-gold);
  flex-shrink: 0;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-card-form {
  background: #ffffff;
  color: var(--text-dark);
  padding: 28px;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  border: 3px solid var(--accent-gold);
}

.form-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--dark-green);
  text-align: center;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.form-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-dark);
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  border: 1.5px solid #cbd5e1;
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.2s ease;
  font-family: inherit;
}

.form-control:focus {
  border-color: var(--primary-green);
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.15);
}

.btn-full {
  width: 100%;
  padding: 12px;
  font-size: 16px;
}

/* Stats Section */
.stats-section {
  margin-top: -40px;
  position: relative;
  z-index: 10;
  margin-bottom: 60px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: #ffffff;
  padding: 24px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-green);
}

.stat-item {
  text-align: center;
  padding: 10px;
  border-right: 1px solid #e2e8f0;
}

.stat-item:last-child {
  border-right: none;
}

.stat-number {
  font-size: 32px;
  font-weight: 900;
  color: var(--primary-green);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 600;
}

/* Section Header */
.section-header {
  text-align: center;
  max-width: 960px;
  margin: 0 auto 40px;
}

.section-tag {
  color: var(--primary-green);
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.3;
}

.section-desc {
  font-size: 16px;
  color: var(--text-muted);
  margin-top: 10px;
  max-width: 850px;
  margin-left: auto;
  margin-right: auto;
}

/* Products Section */
.products-section {
  padding: 60px 0;
  background-color: var(--bg-light);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  border: 1px solid #e2e8f0;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-green);
}

.product-thumb {
  position: relative;
  height: 220px;
  overflow: hidden;
  background-color: #cbd5e1;
}

.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.product-card:hover .product-thumb img {
  transform: scale(1.08);
}

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 10;
  background-color: var(--primary-green);
  color: #ffffff !important;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 6px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.25);
  transition: all 0.25s ease;
  cursor: pointer;
}

.product-badge:hover {
  background-color: var(--dark-green);
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(22, 163, 74, 0.4);
}

.product-content {
  padding: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.product-title {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.product-title a {
  color: var(--text-dark);
  text-decoration: none;
  transition: color 0.2s ease;
}

.product-title a:hover {
  color: var(--primary-green);
}

a.project-card {
  display: block;
  text-decoration: none;
  color: inherit;
}


.product-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
  flex-grow: 1;
}

.product-features {
  margin-bottom: 16px;
  font-size: 13px;
}

.product-features li {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
  color: #475569;
}

.product-features li svg {
  width: 14px;
  height: 14px;
  fill: var(--primary-green);
}

.product-price-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid #f1f5f9;
}

.product-price {
  font-size: 16px;
  font-weight: 800;
  color: var(--accent-red);
}

.product-price small {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 400;
}

/* Price Calculator Section */
.calculator-section {
  padding: 70px 0;
  background: linear-gradient(180deg, #ffffff 0%, var(--light-green) 100%);
}

.calc-box {
  background: #ffffff;
  border-radius: var(--radius-lg);
  box-shadow: 0 15px 35px rgba(22, 163, 74, 0.12);
  border: 2px solid var(--border-green);
  padding: 36px;
  max-width: 900px;
  width: 100%;
  box-sizing: border-box;
  margin: 0 auto;
  overflow: hidden;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
  width: 100%;
  box-sizing: border-box;
}

.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%;
  box-sizing: border-box;
}

.calc-field {
  width: 100%;
  box-sizing: border-box;
}

.calc-field label {
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 8px;
  display: block;
}

.calc-slider-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  box-sizing: border-box;
}

.calc-range {
  flex: 1 1 auto;
  min-width: 0;
  width: 100%;
  accent-color: var(--primary-green);
}

.calc-number-input {
  width: 70px;
  flex-shrink: 0;
  padding: 8px;
  text-align: center;
  font-weight: 700;
  border: 1.5px solid #cbd5e1;
  border-radius: var(--radius-sm);
  box-sizing: border-box;
}

.material-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  box-sizing: border-box;
}

.material-radio {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 14px;
  border: 1.5px solid #e2e8f0;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  width: 100%;
  box-sizing: border-box;
}

.material-radio:hover,
.material-radio.active {
  border-color: var(--primary-green);
  background-color: var(--light-green);
}

.material-info {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  flex: 1 1 auto;
  min-width: 0;
}

.material-info input[type="radio"] {
  margin-top: 4px;
  flex-shrink: 0;
}

.material-info div {
  min-width: 0;
}

.material-info strong {
  display: block;
  font-size: 14px;
  line-height: 1.3;
  word-break: break-word;
}

.material-price {
  font-weight: 800;
  color: var(--dark-green);
  font-size: 14px;
  flex-shrink: 0;
  white-space: nowrap;
}

/* ==========================================================================
   Calculator Result Card - Modern High-End Styling
   ========================================================================== */
.calc-result-card {
  background: linear-gradient(145deg, #0b3d1f 0%, #15803d 45%, #16a34a 100%);
  color: #ffffff;
  border-radius: 20px;
  padding: 30px 24px;
  text-align: center;
  box-shadow: 0 20px 40px -10px rgba(21, 128, 61, 0.45), 0 0 0 1px rgba(255, 255, 255, 0.15) inset;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.calc-result-card::before {
  content: "";
  position: absolute;
  top: -50px;
  right: -50px;
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.calc-result-header {
  margin-bottom: 16px;
}

.calc-badge-top {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #ffffff;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.8px;
  padding: 5px 14px;
  border-radius: 999px;
  text-transform: uppercase;
  margin-bottom: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.calc-badge-top svg {
  fill: #ffde59;
}

.calc-sub-badge {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 400;
}

.calc-price-display-wrap {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 14px;
  padding: 16px 14px;
  margin-bottom: 18px;
  backdrop-filter: blur(6px);
}

.calc-price-label {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.9);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.result-price-display {
  font-size: 36px;
  font-weight: 800;
  color: #ffde59;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  line-height: 1.15;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}

.calc-area-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(255, 255, 255, 0.12);
  padding: 3px 12px;
  border-radius: 999px;
  font-size: 12.5px;
  color: #ffffff;
}

.calc-price-disclaimer {
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.8);
  font-style: italic;
  margin-top: 10px;
  line-height: 1.4;
}

.calc-area-tag svg {
  fill: rgba(255, 255, 255, 0.8);
}

.calc-area-tag strong {
  color: #ffde59;
  font-weight: 700;
}

/* Inclusion Checklist Box */
.calc-includes-box {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 20px;
  text-align: left;
}

.calc-includes-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.calc-includes-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.calc-includes-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.35;
}

.calc-includes-list li svg {
  width: 14px;
  height: 14px;
  fill: #4ade80;
  flex-shrink: 0;
  margin-top: 2px;
}

/* CTA Submit Button */
.btn-calc-submit {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: #ffffff !important;
  text-decoration: none;
  border-radius: 14px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  box-shadow: 0 8px 20px rgba(217, 119, 6, 0.45);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-calc-submit:hover {
  background: linear-gradient(135deg, #fbbf24 0%, #ea580c 100%);
  transform: translateY(-2px);
  box-shadow: 0 12px 25px rgba(217, 119, 6, 0.55);
}

.btn-calc-icon {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.btn-calc-icon svg {
  fill: #ffffff;
}

.btn-calc-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.btn-calc-title {
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0.3px;
  line-height: 1.2;
}

.btn-calc-sub {
  font-size: 11px;
  opacity: 0.9;
  font-weight: 400;
  margin-top: 2px;
}

/* Why Choose Us Section */
.why-section {
  padding: 70px 0;
  background-color: #ffffff;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.why-card {
  padding: 24px;
  border-radius: var(--radius-md);
  background-color: var(--bg-light);
  border: 1px solid #e2e8f0;
  transition: all 0.3s ease;
  text-align: center;
}

.why-card:hover {
  background-color: #ffffff;
  box-shadow: var(--shadow-lg);
  border-color: var(--border-green);
  transform: translateY(-4px);
}

.why-icon {
  width: 60px;
  height: 60px;
  background-color: var(--light-green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  color: var(--primary-green);
}

.why-icon svg {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

.why-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.why-desc {
  font-size: 14px;
  color: var(--text-muted);
}

/* Projects Showcase */
.projects-section {
  padding: 70px 0;
  background-color: var(--bg-light);
}

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

.project-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 260px;
  box-shadow: var(--shadow-sm);
}

.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5, 46, 22, 0.9) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
  color: white;
  transition: opacity 0.3s ease;
}

.project-card:hover img {
  transform: scale(1.08);
}

.project-category {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(22, 163, 74, 0.88);
  backdrop-filter: blur(6px);
  color: #ffffff;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.3px;
  padding: 3px 10px;
  border-radius: 4px;
  width: fit-content;
  margin-bottom: 6px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.project-title {
  font-size: 16.5px;
  font-weight: 400;
  margin-top: 4px;
  line-height: 1.35;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
}

/* Testimonials & FAQ */
.testimonial-section {
  padding: 70px 0;
  background: #ffffff;
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: var(--bg-light);
  padding: 24px 22px;
  border-radius: var(--radius-md);
  border: 1px solid #e2e8f0;
  height: 100%;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.3s ease;
}

.review-card:hover {
  border-color: var(--border-green);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  background: #ffffff;
}

.stars {
  color: var(--accent-gold);
  font-size: 16px;
  margin-bottom: 12px;
}

.review-text {
  font-size: 14px;
  color: var(--text-dark);
  font-style: italic;
  margin-bottom: 16px;
  line-height: 1.6;
  flex-grow: 1;
}

.author-info {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--primary-green);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  flex-shrink: 0;
}

.author-name {
  font-weight: 700;
  font-size: 15px;
}

.author-location {
  font-size: 12px;
  color: var(--text-muted);
}

/* ==========================================================================
   MXS Slider Component (Projects & Reviews)
   ========================================================================== */
.mxs-slider {
  position: relative;
  overflow: hidden;
  padding: 10px 4px 45px;
  width: 100%;
}

.mxs-slider-track {
  display: flex;
  gap: 24px;
  transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform;
}

/* Desktop: 3 items per view (2 gaps of 24px = 48px) */
.mxs-slide {
  flex: 0 0 calc((100% - 48px) / 3);
  max-width: calc((100% - 48px) / 3);
  box-sizing: border-box;
}

/* Tablet: 2 items per view (1 gap of 24px) */
@media (max-width: 992px) {
  .mxs-slide {
    flex: 0 0 calc((100% - 24px) / 2);
    max-width: calc((100% - 24px) / 2);
  }
}

/* Mobile: 1 item per view (gap 16px) */
@media (max-width: 640px) {
  .mxs-slider-track {
    gap: 16px;
  }
  .mxs-slide {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

/* Slider Navigation Arrows */
.mxs-arrow {
  position: absolute;
  top: calc(50% - 20px);
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  color: var(--primary-green);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  transition: all 0.25s ease;
  z-index: 10;
  outline: none;
}

.mxs-arrow:hover {
  background: var(--primary-green);
  color: #ffffff;
  border-color: var(--primary-green);
  transform: translateY(-50%) scale(1.08);
  box-shadow: 0 6px 16px rgba(22, 163, 74, 0.35);
}

.mxs-prev {
  left: 6px;
}

.mxs-next {
  right: 6px;
}

@media (max-width: 640px) {
  .mxs-arrow {
    width: 36px;
    height: 36px;
  }
  .mxs-prev {
    left: 2px;
  }
  .mxs-next {
    right: 2px;
  }
}

/* Slider Dots */
.mxs-dots {
  position: absolute;
  bottom: 8px;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  z-index: 10;
}

.mxs-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #cbd5e1;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: all 0.3s ease;
}

.mxs-dot.active {
  width: 28px;
  background: var(--primary-green);
  box-shadow: 0 2px 8px rgba(22, 163, 74, 0.4);
}

/* Footer */
.site-footer {
  background-color: #0f172a;
  color: #94a3b8;
  padding-top: 60px;
  padding-bottom: 30px;
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 30px;
  margin-bottom: 40px;
}

.footer-col h3 {
  color: #ffffff;
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 8px;
}

.footer-col h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 36px;
  height: 3px;
  background-color: var(--primary-green);
}

.footer-col p {
  line-height: 1.6;
  margin-bottom: 16px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #94a3b8;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--primary-green);
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
}

.footer-contact svg {
  width: 18px;
  height: 18px;
  fill: var(--primary-green);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 13px;
}

/* Social Media Icons in Footer */
.social-icon-btn:hover {
  background: var(--primary-green) !important;
  border-color: var(--primary-green) !important;
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(22, 163, 74, 0.4);
}


.mobile-sticky-bar {
  position: fixed;
  bottom: 12px;
  left: 12px;
  right: 12px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: none;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 6px;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(255, 255, 255, 0.8) inset;
  z-index: 9999;
  box-sizing: border-box;
  max-width: calc(100% - 24px);
  margin: 0 auto;
}

.sticky-btn {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 6px;
  font-size: 12.5px;
  font-weight: 600;
  color: #ffffff !important;
  text-decoration: none;
  border-radius: 14px;
  transition: all 0.25s ease;
  white-space: nowrap;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

.sticky-btn:active {
  transform: scale(0.96);
}

.sticky-btn.call {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.sticky-btn.zalo {
  background: linear-gradient(135deg, #0068ff 0%, #0052cc 100%);
}

.sticky-btn.quote {
  background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
}

.sticky-btn svg {
  width: 18px;
  height: 18px;
  fill: #ffffff !important;
  color: #ffffff !important;
  flex-shrink: 0;
}

/* Responsive Styles */
@media (max-width: 1200px) and (min-width: 993px) {
  .main-navigation ul {
    gap: 12px;
  }
  .main-navigation a {
    font-size: 13.5px;
  }
  .btn {
    padding: 8px 14px;
    font-size: 13.5px;
  }
  .site-title {
    font-size: 19px;
  }
}

@media (max-width: 992px) {
  .hero-grid,
  .calc-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .products-section .product-grid,
  .why-grid,
  .projects-grid,
  .review-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stat-item {
    border-right: none;
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 16px;
  }

  .stat-item:nth-child(3),
  .stat-item:nth-child(4) {
    border-bottom: none;
  }

  .main-navigation {
    display: none;
  }

  .mobile-toggle {
    display: block;
  }
}

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

  .hero-title {
    font-size: 28px;
  }

  .products-section .product-grid,
  .why-grid,
  .projects-grid,
  .review-grid {
    grid-template-columns: 1fr;
  }

  .mobile-sticky-bar {
    display: grid;
  }

  .site-title {
    font-size: 18px;
  }

  .site-tagline {
    font-size: 11px;
  }

  .site-logo-icon {
    width: 40px;
    height: 40px;
  }

  .site-logo-icon svg {
    width: 22px;
    height: 22px;
  }

  .btn-accent {
    padding: 8px 12px;
    font-size: 13px;
  }

  .calc-box {
    padding: 20px 14px;
    border-radius: 12px;
    margin: 0 auto;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }

  .calc-slider-wrap {
    gap: 10px;
    width: 100%;
    box-sizing: border-box;
  }

  .calc-number-input {
    width: 60px;
    padding: 6px 4px;
    font-size: 13px;
  }

  .material-radio {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 10px 12px;
    width: 100%;
    box-sizing: border-box;
  }

  .material-price {
    align-self: flex-start;
    padding-left: 24px;
    font-size: 13.5px;
  }

  body {
    padding-bottom: 56px; /* space for sticky bar */
  }
}

/* FAQ Accordion Section */
.faq-section {
  padding: 80px 0;
  background-color: #ffffff;
}

.faq-header {
  text-align: center;
  max-width: 850px;
  margin: 0 auto 40px;
}

.faq-badge {
  display: inline-block;
  background-color: #dcfce7;
  color: var(--primary-green);
  font-size: 13px;
  font-weight: 800;
  padding: 6px 18px;
  border-radius: 30px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}

.faq-title {
  font-size: 34px;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 12px;
}

.faq-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.6;
}

.faq-accordion {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #ffffff;
  border: 1.5px solid #e2e8f0;
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.25s ease;
}

.faq-item:hover {
  border-color: var(--border-green);
  box-shadow: 0 4px 12px rgba(22, 163, 74, 0.08);
}

.faq-item.active {
  border-color: var(--border-green);
  box-shadow: 0 6px 16px rgba(22, 163, 74, 0.1);
  background-color: #fafdfb;
}

.faq-question {
  width: 100%;
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 17px;
  font-weight: 700;
  color: #1e293b;
  transition: color 0.2s ease;
  gap: 16px;
  font-family: inherit;
}

.faq-item.active .faq-question {
  color: var(--primary-green);
}

.faq-icon {
  width: 22px;
  height: 22px;
  fill: #64748b;
  flex-shrink: 0;
  transition: transform 0.3s ease, fill 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  fill: var(--primary-green);
}

.faq-answer {
  display: none;
  padding: 0 28px 24px 28px;
  font-size: 15.5px;
  color: #475569;
  line-height: 1.7;
  border-top: 1px dashed rgba(22, 163, 74, 0.15);
  margin-top: -4px;
  padding-top: 16px;
}

@media (max-width: 768px) {
  .faq-title {
    font-size: 26px;
  }

  .faq-question {
    padding: 16px 20px;
    font-size: 15px;
  }

  .faq-answer {
    padding: 0 20px 20px 20px;
    font-size: 14px;
  }
}

/* Floating Contact Bar (Góc Phải Dưới Màn Hình) */
.floating-contact-bar {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.float-contact-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  text-decoration: none;
}

.float-contact-btn:hover {
  transform: scale(1.15);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
}

.float-contact-btn svg {
  width: 24px;
  height: 24px;
  fill: #ffffff !important;
  color: #ffffff !important;
  stroke: none;
  transition: transform 0.2s ease;
}

.float-contact-btn:hover svg,
.float-contact-btn:focus svg,
.float-contact-btn:active svg {
  fill: #ffffff !important;
  color: #ffffff !important;
}

.float-contact-btn.phone-float {
  background: linear-gradient(135deg, #16a34a, #15803d);
}

.float-contact-btn.zalo-float {
  background: linear-gradient(135deg, #0084ff, #0056b3);
}

.float-contact-btn.calc-float {
  background: linear-gradient(135deg, #f59e0b, #d97706);
}

/* Tooltip Hover */
.float-btn-tooltip {
  position: absolute;
  right: 64px;
  background: #0f172a;
  color: #ffffff;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  pointer-events: none;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.float-contact-btn:hover .float-btn-tooltip {
  opacity: 1;
  visibility: visible;
  right: 68px;
}

/* Pulse Animation for Phone Button */
.pulse-ring {
  position: absolute;
  top: -6px; left: -6px; right: -6px; bottom: -6px;
  border: 2px solid #16a34a;
  border-radius: 50%;
  animation: phone-pulse-ring 1.8s infinite cubic-bezier(0.215, 0.61, 0.355, 1);
}

@keyframes phone-pulse-ring {
  0% {
    transform: scale(0.9);
    opacity: 0.9;
  }
  50% {
    transform: scale(1.3);
    opacity: 0.4;
  }
  100% {
    transform: scale(1.6);
    opacity: 0;
  }
}

/* CTA Banner Callout Section */
.cta-banner-section {
  padding: 60px 0;
  background: linear-gradient(135deg, #052e16 0%, #14532d 100%);
  color: #ffffff;
}

.cta-banner-card {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.cta-badge {
  display: inline-block;
  background: var(--accent-gold);
  color: #1e293b;
  font-weight: 600;
  font-size: 13px;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
}

.cta-title {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 8px;
  color: #ffffff;
}

.cta-desc {
  font-size: 16px;
  opacity: 0.9;
  max-width: 600px;
}

.cta-banner-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-shrink: 0;
}

.btn-pulse-phone {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-hover));
  color: #ffffff;
  font-size: 16px;
  font-weight: 600;
  padding: 14px 28px;
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
}

.btn-pulse-phone:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.5);
}

.btn-zalo-cta {
  background: #0068ff;
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 24px;
}

.btn-zalo-cta:hover {
  background: #0056b3;
  color: white;
}

@media (max-width: 992px) {
  .mobile-toggle {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
  }

  .main-navigation {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #ffffff;
    padding: 16px 20px 24px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    border-top: 3px solid var(--primary-green);
    z-index: 9999;
    max-height: 80vh;
    overflow-y: auto;
  }

  .main-navigation.active {
    display: block !important;
  }

  .main-navigation ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .main-navigation li {
    width: 100%;
    border-bottom: 1px solid #f1f5f9;
  }

  .main-navigation a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    font-size: 15px;
    width: 100%;
    box-sizing: border-box;
  }

  /* Mobile Submenu Accordion */
  .main-navigation .sub-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border-top: none;
    background: #f8fafc;
    border-left: 3px solid var(--primary-green);
    border-radius: 8px;
    padding: 4px 0;
    margin: 4px 0 12px 10px;
    display: none;
  }

  .main-navigation li.submenu-open > .sub-menu {
    display: block !important;
  }

  .main-navigation .sub-menu li a {
    padding: 10px 14px;
    font-size: 13.5px;
    color: #475569;
    border-bottom: 1px dashed #e2e8f0;
  }

  .cta-banner-card {
    flex-direction: column;
    text-align: center;
  }
  .cta-desc {
    margin: 0 auto;
  }
  .cta-banner-buttons {
    width: 100%;
  }
  .btn-pulse-phone, .btn-zalo-cta {
    width: 100%;
  }
  .branches-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}


@media (max-width: 768px) {
  html, body {
    overflow-x: hidden !important;
    position: relative;
  }

  .branches-grid {
    grid-template-columns: 1fr !important;
  }

  .floating-contact-bar {
    display: none !important;
  }

  body {
    padding-bottom: 80px; /* space for floating sticky dock */
  }

  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-section,
  .products-section,
  .calculator-section,
  .why-section,
  .projects-section,
  .testimonial-section,
  .faq-section,
  .cta-banner-section,
  .site-footer,
  .about-overview-grid,
  .about-vision-grid,
  .core-values-grid,
  .about-contact-section {
    overflow-x: hidden;
    max-width: 100%;
  }

  .about-overview-grid,
  .about-contact-section {
    grid-template-columns: 1fr !important;
    gap: 24px;
  }

  .about-hero-buttons {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 8px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .about-hero-buttons .btn {
    width: 100% !important;
    box-sizing: border-box !important;
    font-size: 12.5px !important;
    padding: 10px 4px !important;
    text-align: center !important;
    justify-content: center !important;
    white-space: nowrap !important;
  }

  .contact-branches-grid-2col {
    grid-template-columns: 1fr !important;
    gap: 8px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .branch-card-item {
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 8px 10px !important;
    overflow: hidden !important;
  }

  .about-vision-grid,
  .core-values-grid {
    grid-template-columns: 1fr !important;
  }

  .about-hero-title {
    font-size: 26px !important;
  }

  .about-section-heading {
    font-size: 22px !important;
  }

  .about-stats-card,
  .about-core-section,
  .contact-details-box,
  .contact-form-box {
    padding: 16px 12px !important;
    box-sizing: border-box !important;
    width: 100% !important;
    max-width: 100% !important;
    overflow: hidden !important;
  }

  .contact-form-box .btn-full {
    font-size: 13.5px !important;
    padding: 12px 6px !important;
    white-space: normal !important;
    box-sizing: border-box !important;
    width: 100% !important;
    max-width: 100% !important;
  }
}

/* =============================================================
 * ABOUT US PAGE STYLES (Trang Về Chúng Tôi)
 * ============================================================= */
.about-hero-banner {
  background: linear-gradient(135deg, #052e16 0%, #14532d 40%, #166534 100%);
  color: #ffffff;
  padding: 60px 0 50px;
  text-align: center;
  position: relative;
}

.about-hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  color: #fef08a;
  padding: 6px 18px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.about-hero-title {
  font-size: 38px;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 16px;
  color: #ffffff;
}

.about-hero-desc {
  font-size: 17px;
  max-width: 800px;
  margin: 0 auto;
  color: #e2e8f0;
  line-height: 1.6;
}

.about-main-content {
  padding-top: 50px;
  padding-bottom: 70px;
}

.about-overview-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 60px;
}

.about-section-heading {
  font-size: 30px;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.3;
  margin-bottom: 20px;
}

.about-overview-text p {
  color: #475569;
  font-size: 15.5px;
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 20px;
}

/* =============================================================
   PREMIUM EMERALD CARD BOX STYLE (Giống mẫu Calc Result Card)
   ============================================================= */
/* =============================================================
   PREMIUM EMERALD CARD BOX STYLE (Giống hệt mẫu Calc Result Card Hình 1)
   ============================================================= */
.mx-card-emerald {
  background: linear-gradient(145deg, #0b3d1f 0%, #15803d 45%, #16a34a 100%);
  color: #ffffff;
  border-radius: 20px;
  padding: 30px 24px;
  text-align: center;
  box-shadow: 0 20px 40px -10px rgba(21, 128, 61, 0.45), 0 0 0 1px rgba(255, 255, 255, 0.15) inset;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.mx-card-emerald::before {
  content: "";
  position: absolute;
  top: -50px;
  right: -50px;
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.card-emerald-header {
  text-align: center;
  margin-bottom: 18px;
}

.card-emerald-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #ffffff;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.8px;
  padding: 5px 16px;
  border-radius: 999px;
  text-transform: uppercase;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.card-emerald-subtitle {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 400;
  margin-top: 6px;
  margin-bottom: 0;
}

.card-emerald-inner-box {
  
  margin-bottom: 16px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.mx-card-emerald .about-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.mx-card-emerald .about-stat-box {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 14px 6px;
  text-align: center;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.mx-card-emerald .about-stat-num {
  font-size: 32px;
  font-weight: 800;
  color: #ffde59;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  line-height: 1.1;
  letter-spacing: -0.5px;
}

.mx-card-emerald .about-stat-label {
  font-size: 12px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  margin-top: 4px;
}

.card-emerald-commitments {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 18px;
  text-align: left;
}

.card-emerald-commitments .commit-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.95);
  line-height: 1.5;
}

.card-emerald-commitments .commit-item svg {
  flex-shrink: 0;
  margin-top: 2px;
}

/* Orange/Gold CTA Button matching Image 1 */
.card-emerald-cta-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: linear-gradient(180deg, #ff9100 0%, #e67e00 100%);
  color: #ffffff;
  padding: 14px 18px;
  border-radius: 14px;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(230, 126, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.2) inset;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card-emerald-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(230, 126, 0, 0.5);
  color: #ffffff;
}

.card-emerald-cta-btn .cta-btn-icon {
  width: 38px;
  height: 38px;
  background: rgba(255, 255, 255, 0.22);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.card-emerald-cta-btn .cta-btn-title {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.3px;
  line-height: 1.2;
  color: #ffffff;
  text-align: left;
}

.card-emerald-cta-btn .cta-btn-sub {
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.9);
  margin-top: 2px;
  font-weight: 500;
  text-align: left;
}



.about-vision-section {
  margin-bottom: 60px;
}

.about-vision-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.vision-card {
  background: #ffffff;
  border: 1.5px solid #e2e8f0;
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease;
  border-top: 4px solid var(--primary-green);
}

.vision-card:hover {
  transform: translateY(-4px);
}

.vision-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-green);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  box-shadow: 0 4px 12px rgba(22, 163, 74, 0.3);
}

.vision-icon svg {
  width: 24px;
  height: 24px;
  fill: #ffffff;
}

.vision-card h3 {
  font-size: 20px;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 12px;
}

.vision-card p {
  color: #64748b;
  font-size: 14.5px;
  line-height: 1.7;
}

.about-core-section {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-lg);
  padding: 45px 36px;
  margin-bottom: 60px;
}

.core-values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.core-card {
  background: #ffffff;
  padding: 24px 18px;
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid #e2e8f0;
  transition: transform 0.3s ease;
}

.core-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-green);
}

.core-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--primary-green);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  box-shadow: 0 3px 8px rgba(22, 163, 74, 0.25);
}

.core-icon svg {
  width: 22px;
  height: 22px;
  fill: #ffffff;
}

.core-card h4 {
  font-size: 17px;
  font-weight: 800;
  color: var(--dark-green);
  margin-bottom: 8px;
}

.core-card p {
  font-size: 13.5px;
  color: #64748b;
  line-height: 1.6;
}

.about-contact-section {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: start;
}

.contact-details-box {
  background: var(--light-green);
  border: 1px solid var(--border-green);
  padding: 30px;
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
}

.contact-details-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--dark-green);
  margin-bottom: 16px;
  line-height: 1.3;
}

.main-factory-badge {
  margin-bottom: 16px;
  background: #ffffff;
  padding: 14px;
  border-radius: 8px;
  border-left: 4px solid var(--primary-green);
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  word-break: break-word;
}

.contact-branches-grid-2col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.branch-card-item {
  background: #ffffff;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  word-break: break-word;
  overflow: hidden;
}

.contact-form-box {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  padding: 30px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
}

.contact-form-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 20px;
  line-height: 1.3;
}

/* ===================================================
   NEWS / LATEST POSTS SECTION
   =================================================== */

.news-section {
  padding: 80px 0;
  background: #f8fafc;
}

.news-card {
  background: #ffffff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  border: 1px solid #f1f5f9;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 32px rgba(22, 163, 74, 0.12);
  border-color: #bbf7d0;
}

.news-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #e2e8f0;
}

.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

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

.news-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--primary-green);
  color: #ffffff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  border-radius: 20px;
  z-index: 2;
  white-space: nowrap;
  max-width: calc(100% - 24px);
  overflow: hidden;
  text-overflow: ellipsis;
}

.news-content {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.news-date {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12.5px;
  color: #94a3b8;
  font-weight: 500;
}

.news-date svg {
  flex-shrink: 0;
  color: var(--primary-green);
}

.news-title {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.45;
  margin: 0 0 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-title a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s;
}

.news-title a:hover {
  color: var(--primary-green);
}

.news-excerpt {
  font-size: 13.5px;
  color: #64748b;
  line-height: 1.6;
  margin: 0 0 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.news-readmore {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-green);
  text-decoration: none;
  transition: gap 0.25s ease, color 0.25s;
  margin-top: auto;
}

.news-readmore:hover {
  gap: 8px;
  color: #15803d;
}

.news-readmore svg {
  transition: transform 0.25s;
}

.news-readmore:hover svg {
  transform: translateX(3px);
}

@media (max-width: 768px) {
  .news-section {
    padding: 56px 0;
  }
  .news-title {
    font-size: 14.5px;
  }
  .news-content {
    padding: 16px;
  }
}

@media (max-width: 480px) {
  .news-title {
    font-size: 14px;
  }
  .news-excerpt {
    -webkit-line-clamp: 2;
  }
}

/* ===================================================
   SINGLE POST META & AUTHOR BOX
   =================================================== */

.single-post-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.single-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #64748b;
  font-weight: 500;
}

.single-meta-item svg {
  color: var(--primary-green);
}

.single-meta-sep {
  color: #cbd5e1;
  font-weight: bold;
}

/* Author Box at Bottom of Article */
.single-author-box {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-left: 4px solid var(--primary-green);
  padding: 24px;
  border-radius: var(--radius-md);
  margin-top: 30px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

.author-box-avatar {
  flex-shrink: 0;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid #bbf7d0;
  background: #f1f5f9;
}

.author-box-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.author-box-info {
  flex: 1;
}

.author-box-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary-green);
  margin-bottom: 4px;
}

.author-box-name {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-dark);
  text-decoration: none;
  display: inline-block;
  margin-bottom: 8px;
  transition: color 0.2s;
}

.author-box-name:hover {
  color: var(--primary-green);
}

.author-box-bio {
  font-size: 14px;
  line-height: 1.6;
  color: #475569;
  margin: 0 0 12px;
}

.author-box-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-green);
  text-decoration: none;
  transition: color 0.2s, gap 0.2s;
}

.author-box-link:hover {
  color: #15803d;
  gap: 8px;
}

@media (max-width: 640px) {
  .single-author-box {
    flex-direction: column;
    text-align: center;
    align-items: center;
    padding: 20px;
  }

  .author-box-avatar {
    width: 64px;
    height: 64px;
  }
}