/* ==========================================================================
   THÀNH PHÚ CONSTRUCTION - FLAT DESIGN STYLESHEET
   Màu sắc chủ đạo: 
   - Đỏ thương hiệu: #ed1925
   - Ghi bạc kỹ thuật: #b3b2b7
   - Vàng công trình: #FFCB56
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700;800;900&family=Be+Vietnam+Pro:wght@300;400;500;600;700&display=swap');

:root {
  /* Brand Colors */
  --primary: #ed1925;
  --primary-dark: #c4121d;
  --primary-light: #ff4754;
  --primary-soft: rgba(237, 25, 37, 0.08);

  --gray: #b3b2b7;
  --gray-light: #e6e7ea;
  --gray-dark: #6e7279;
  --gray-border: #dde1e6;

  --accent: #FFCB56;
  --accent-dark: #e5af3a;
  --accent-soft: rgba(255, 203, 86, 0.15);

  /* Flat Neutrals */
  --dark: #16191e;
  --dark-surface: #20242b;
  --dark-light: #2c333e;
  --body-bg: #f8f9fb;
  --card-bg: #ffffff;
  --text-main: #2b303a;
  --text-muted: #646a77;
  --text-light: #a0a6b2;

  /* Geometry & Flat Tokens */
  --radius-sm: 3px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --transition: all 0.25s ease;
  --flat-shadow: 0 4px 0 rgba(0, 0, 0, 0.06);
  --flat-shadow-hover: 0 8px 0 rgba(0, 0, 0, 0.08);
  --container-width: 1340px;
  --header-height: 84px;
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  overflow-x: hidden;
  scrollbar-gutter: stable;
}

body {
  font-family: 'Be Vietnam Pro', sans-serif;
  color: var(--text-main);
  background-color: var(--body-bg);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.3;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

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

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: none;
}

/* Container & Layout */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* Section Common */
.section {
  padding: 85px 0;
  position: relative;
}

.section-dark {
  background-color: var(--dark);
  color: #f1f3f5;
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: #ffffff;
}

.section-gray {
  background-color: #eef1f5;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 55px;
}

.section-subtitle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--primary);
  margin-bottom: 12px;
  background: var(--primary-soft);
  padding: 5px 14px;
  border-left: 3px solid var(--primary);
}

.section-dark .section-subtitle {
  background: rgba(237, 25, 37, 0.18);
  color: #ff6b75;
}

.section-title {
  font-size: 2.35rem;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.section-dark .section-desc {
  color: var(--gray);
}

/* CSS Grid Utilities */
.grid {
  display: grid;
  gap: 28px;
}

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

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

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

.grid-auto {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* ==========================================================================
   BUTTONS (FLAT DESIGN)
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 28px;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.92rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  border: 2px solid transparent;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 0 var(--primary-dark);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 0 #9c0e17;
  color: #ffffff;
}

.btn-accent {
  background-color: var(--accent);
  color: var(--dark);
  box-shadow: 0 4px 0 var(--accent-dark);
}

.btn-accent:hover {
  background-color: #ffd875;
  transform: translateY(-2px);
  box-shadow: 0 6px 0 var(--accent-dark);
}

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

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

.btn-outline-white {
  background-color: transparent;
  color: #ffffff;
  border: 2px solid #ffffff;
}

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

.btn-sm {
  padding: 9px 18px;
  font-size: 0.82rem;
}

.header-phone-btn {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 2px 0 var(--primary-dark);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  gap: 6px;
  display: inline-flex;
  align-items: center;
}

.header-phone-btn:hover {
  background-color: var(--primary-dark);
  color: #ffffff;
  transform: translateY(-1px);
}

.header-phone-btn i {
  color: var(--accent);
  font-size: 0.82rem;
  animation: phoneRing 2.2s infinite ease-in-out;
}

@keyframes phoneRing {
  0%, 100% { transform: rotate(0deg); }
  5%, 15% { transform: rotate(-16deg); }
  10%, 20% { transform: rotate(16deg); }
  25% { transform: rotate(0deg); }
}

/* ==========================================================================
   TOP BAR & HEADER NAVIGATION (BEHIND / TRANSPARENT OVERLAY & STICKY ON SCROLL)
   ========================================================================== */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: transparent;
  box-shadow: none;
  transition: background-color 0.4s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1), border 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

#site-header.scrolled {
  background-color: #ffffff;
  box-shadow: 0 4px 25px rgba(0, 0, 0, 0.1);
  border-bottom: 2px solid var(--primary);
}

#page-content {
  padding-top: 0;
  min-height: calc(100vh - var(--header-height));
}

.top-bar {
  background-color: rgba(16, 20, 26, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.82rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  padding: 8px 0;
  max-height: 50px;
  opacity: 1;
  overflow: hidden;
  transition: max-height 0.35s ease, opacity 0.25s ease, padding 0.35s ease, background-color 0.35s ease;
}

#site-header.scrolled .top-bar {
  max-height: 0;
  opacity: 0;
  padding: 0;
  border-bottom: none;
}

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

.top-bar-left, .top-bar-right {
  display: flex;
  align-items: center;
  gap: 22px;
}

.top-bar-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.88);
}

.top-bar-item i {
  color: var(--accent);
}

.top-bar-item a {
  color: #ffffff;
}

.top-bar-item a:hover {
  color: var(--accent);
}


/* Main Navigation */
.main-header {
  position: relative;
  width: 100%;
  background-color: transparent;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  transition: background-color 0.4s cubic-bezier(0.4, 0, 0.2, 1), border 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

#site-header.scrolled .main-header {
  background-color: #ffffff;
  border-bottom: none;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  transition: height 0.35s ease;
}

#site-header.scrolled .navbar {
  height: 70px;
}

.brand-logo {
  display: flex;
  align-items: center;
  padding: 4px 0;
  flex-shrink: 0;
  transition: all 0.3s ease;
}

#site-header.scrolled .brand-logo {
  padding: 4px 0;
}

.brand-logo img {
  height: 46px;
  max-width: 240px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.75));
  transition: filter 0.3s ease, transform 0.25s ease;
}

#site-header.scrolled .brand-logo img {
  height: 46px;
  filter: none;
}

.brand-logo:hover img {
  transform: scale(1.02);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.18rem;
  color: var(--dark);
  letter-spacing: 0.5px;
  line-height: 1.2;
}

.brand-name span {
  color: var(--primary);
}

.brand-tagline {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--gray-dark);
  text-transform: uppercase;
  letter-spacing: 1.2px;
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  flex-shrink: 0;
}

.nav-link {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #ffffff;
  padding: 8px 10px;
  position: relative;
  letter-spacing: 0.2px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  display: inline-block;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.6);
  transition: color 0.3s ease, text-shadow 0.3s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 10px;
  right: 10px;
  height: 3px;
  background-color: var(--accent);
  transform: scaleX(0);
  transition: transform 0.25s ease, background-color 0.25s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent);
}

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

/* Scrolled Nav Link States (When sticky header turns white) */
#site-header.scrolled .nav-link {
  color: var(--dark);
  text-shadow: none;
}

#site-header.scrolled .nav-link::after {
  background-color: var(--primary);
}

#site-header.scrolled .nav-link:hover,
#site-header.scrolled .nav-link.active {
  color: var(--primary);
}

.nav-action {
  margin-left: 15px;
}

/* ==========================================================================
   NAVBAR DROPDOWN MENU
   ========================================================================== */
.has-dropdown {
  position: relative;
}

.has-dropdown .nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.dropdown-arrow {
  font-size: 0.65rem;
  transition: transform 0.25s ease;
}

.has-dropdown:hover .dropdown-arrow {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 260px;
  background-color: #ffffff;
  border: 1px solid var(--gray-border);
  border-top: 3px solid var(--primary);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  padding: 6px 0;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s ease;
  pointer-events: none;
  z-index: 1050;
  list-style: none;
}

/* Invisible hover bridge to maintain hover state between link and menu */
.dropdown-menu::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 0;
  right: 0;
  height: 12px;
}

.has-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.dropdown-item {
  display: block;
  padding: 12px 20px;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--dark) !important;
  text-shadow: none !important;
  letter-spacing: 0.3px;
  transition: all 0.2s ease;
  border-left: 3px solid transparent;
  border-bottom: 1px solid #f4f5f7;
  white-space: nowrap;
}

.dropdown-menu li:last-child .dropdown-item {
  border-bottom: none;
}

.dropdown-item:hover {
  background-color: #fbfcfd;
  color: var(--primary) !important;
  border-left-color: var(--primary);
  padding-left: 24px;
}


/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: none;
  font-size: 1.5rem;
  color: #ffffff;
  cursor: pointer;
  padding: 8px;
  transition: color 0.3s ease;
}

#site-header.scrolled .mobile-toggle {
  color: var(--dark);
}

/* ==========================================================================
   INNER PAGES (WITHOUT HERO SLIDER): SOLID HEADER & PROPER SPACING
   ========================================================================== */
body:not(:has(#hero-slider)) #site-header,
body.no-hero-slider #site-header {
  background-color: #ffffff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border-bottom: 2px solid var(--primary);
}

body:not(:has(#hero-slider)) #site-header .top-bar,
body.no-hero-slider #site-header .top-bar {
  max-height: 0;
  opacity: 0;
  padding: 0;
  border-bottom: none;
}

body:not(:has(#hero-slider)) #site-header .navbar,
body.no-hero-slider #site-header .navbar {
  height: 70px;
}

body:not(:has(#hero-slider)) .nav-link,
body.no-hero-slider .nav-link {
  color: var(--dark);
  text-shadow: none;
}

body:not(:has(#hero-slider)) .nav-link::after,
body.no-hero-slider .nav-link::after {
  background-color: var(--primary);
}

body:not(:has(#hero-slider)) .nav-link:hover,
body:not(:has(#hero-slider)) .nav-link.active,
body.no-hero-slider .nav-link:hover,
body.no-hero-slider .nav-link.active {
  color: var(--primary);
}

body:not(:has(#hero-slider)) .mobile-toggle,
body.no-hero-slider .mobile-toggle {
  color: var(--dark);
}

body:not(:has(#hero-slider)) .brand-logo img,
body.no-hero-slider .brand-logo img {
  filter: none;
}

body:not(:has(#hero-slider)) #page-content,
body.no-hero-slider #page-content {
  padding-top: 70px;
}

/* ==========================================================================
   HOMEPAGE HERO SLIDER SECTION (CAROUSEL WITH GSAP ANIMATIONS)
   ========================================================================== */
.hero-slider {
  position: relative;
  height: 100vh;
  min-height: 720px;
  max-height: 980px;
  background-color: var(--dark);
  overflow: hidden;
}

.hero-slides {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 720px;
}

.hero-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1;
}

.hero-slide.active {
  opacity: 1;
  visibility: visible;
  z-index: 2;
}

.hero-slide-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transform: scale(1.08);
  transition: transform 7s ease-out;
  z-index: 1;
}

.hero-slide.active .hero-slide-bg {
  transform: scale(1);
}

.hero-slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(16, 20, 26, 0.72) 0%, rgba(16, 20, 26, 0.18) 26%, transparent 60%, rgba(16, 20, 26, 0.45) 100%);
  z-index: 2;
  pointer-events: none;
}

/* Slider Controls: Arrows */
.hero-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  background-color: rgba(22, 25, 30, 0.75);
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
  z-index: 10;
  transition: var(--transition);
}

.hero-nav-btn:hover {
  background-color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-50%) scale(1.08);
  box-shadow: 0 4px 14px rgba(237, 25, 37, 0.4);
}

.hero-nav-btn.prev {
  left: 28px;
}

.hero-nav-btn.next {
  right: 28px;
}


.hero-content {
  position: relative;
  z-index: 3;
  max-width: 780px;
  padding: 60px 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(237, 25, 37, 0.2);
  border-left: 4px solid var(--primary);
  color: #ffffff;
  padding: 8px 18px;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-badge i {
  color: var(--accent);
}

.hero-title {
  color: #ffffff;
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1.15;
  text-transform: uppercase;
  margin-bottom: 22px;
}

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

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

.hero-desc {
  color: var(--gray);
  font-size: 1.15rem;
  line-height: 1.7;
  margin-bottom: 35px;
  max-width: 680px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

/* Hero Feature Cards (Floating Grid) */
.hero-features {
  position: relative;
  z-index: 4;
  margin-top: -50px;
}

.hero-feature-card {
  background: #ffffff;
  padding: 28px 24px;
  border-radius: var(--radius-sm);
  border-top: 4px solid var(--primary);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  display: flex;
  gap: 18px;
  align-items: flex-start;
  transition: var(--transition);
}

.hero-feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 35px rgba(0, 0, 0, 0.12);
}

.hero-feature-card:nth-child(2) {
  border-top-color: var(--accent);
}

.hero-feature-card:nth-child(3) {
  border-top-color: var(--dark);
}

.hero-feature-icon {
  width: 52px;
  height: 52px;
  background: var(--body-bg);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.hero-feature-card:nth-child(2) .hero-feature-icon {
  color: var(--accent-dark);
}

.hero-feature-card:nth-child(3) .hero-feature-icon {
  color: var(--dark);
}

.hero-feature-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.hero-feature-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ==========================================================================
   STAT COUNTER SECTION (FLAT METRICS)
   ========================================================================== */
.stats-section {
  background-color: var(--dark-surface);
  color: #ffffff;
  padding: 60px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 4px solid var(--primary);
}

.stat-item {
  text-align: center;
  padding: 10px 20px;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 20%;
  height: 60%;
  width: 1px;
  background: rgba(255, 255, 255, 0.12);
}

.stat-number {
  font-family: 'Montserrat', sans-serif;
  font-size: 3.2rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--gray);
  letter-spacing: 0.5px;
}

/* ==========================================================================
   SERVICES / LĨNH VỰC HOẠT ĐỘNG
   ========================================================================== */
.service-card {
  background: #ffffff;
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
}

.service-img-wrapper {
  position: relative;
  height: 220px;
  overflow: hidden;
}

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

.service-card:hover .service-img-wrapper img {
  transform: scale(1.06);
}

.service-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--primary);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 700;
  font-family: 'Montserrat', sans-serif;
  padding: 4px 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.service-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.service-icon {
  width: 46px;
  height: 46px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

.service-title {
  font-size: 1.22rem;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.35;
}

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

.service-text {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 18px;
  flex-grow: 1;
}

.service-list {
  margin-bottom: 20px;
  border-top: 1px dashed var(--gray-border);
  padding-top: 14px;
}

.service-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  color: var(--text-main);
  margin-bottom: 6px;
}

.service-list li i {
  color: var(--primary);
  font-size: 0.75rem;
}

.service-link {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
}

.service-link:hover {
  gap: 12px;
  color: var(--primary-dark);
}

/* ==========================================================================
   PROJECTS / DỰ ÁN
   ========================================================================== */
.filter-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 8px 20px;
  background: #ffffff;
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-sm);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.project-card {
  position: relative;
  background: #ffffff;
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: var(--transition);
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.1);
  border-color: var(--primary);
}

.project-img-box {
  position: relative;
  height: 260px;
  overflow: hidden;
}

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

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

.project-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--dark);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 700;
  font-family: 'Montserrat', sans-serif;
  padding: 4px 10px;
  text-transform: uppercase;
  border-left: 3px solid var(--accent);
  z-index: 2;
}

.project-status {
  position: absolute;
  top: 14px;
  right: 14px;
  background: rgba(36, 161, 72, 0.95);
  color: #ffffff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 2px;
  text-transform: uppercase;
  z-index: 2;
}

.project-body {
  padding: 22px;
}

.project-title {
  font-size: 1.18rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.35;
}

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

.project-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.86rem;
  color: var(--text-muted);
  border-top: 1px solid var(--gray-border);
  padding-top: 12px;
  margin-top: 12px;
}

.project-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.project-meta-item i {
  color: var(--primary);
  width: 16px;
}

/* ==========================================================================
   PROJECT DETAIL PAGE (CHI TIẾT DỰ ÁN)
   ========================================================================== */
.project-detail-header {
  margin-bottom: 25px;
}

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

.project-meta-badges .project-badge,
.project-meta-badges .project-status {
  position: static;
  display: inline-block;
}

.project-cat-tag {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--dark);
  background: rgba(22, 25, 30, 0.08);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.project-cat-tag:hover {
  background: var(--primary);
  color: #ffffff;
}

.project-detail-title {
  font-size: 2.2rem;
  font-weight: 800;
  text-transform: uppercase;
  line-height: 1.25;
  color: var(--dark);
  margin: 0;
  letter-spacing: -0.5px;
}

.project-detail-visual {
  margin-bottom: 45px;
}

.detail-main-img-box {
  width: 100%;
  height: 480px;
  background: #eef1f5;
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--gray-border);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
}

.detail-main-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.25s ease;
}

.detail-thumbs-bar {
  display: flex;
  gap: 14px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.thumb-item {
  width: 120px;
  height: 75px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.2s ease;
  background: #eef1f5;
  opacity: 0.7;
}

.thumb-item:hover,
.thumb-item.active {
  border-color: var(--primary);
  opacity: 1;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(237, 25, 37, 0.2);
}

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

.project-detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
  align-items: start;
}

.project-detail-body {
  display: flex;
  flex-direction: column;
  gap: 35px;
}

.detail-block {
  background: #ffffff;
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-sm);
  padding: 32px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
}

.detail-block-title {
  font-size: 1.3rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--dark);
  border-bottom: 2px solid #f0f2f6;
  padding-bottom: 12px;
}

.detail-block-title i {
  color: var(--primary);
  font-size: 1.15rem;
}

.detail-lead {
  font-size: 1.02rem;
  line-height: 1.8;
  color: var(--text-main);
  margin: 0;
}

.detail-check-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 0;
  margin: 0;
}

.detail-check-list li {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-main);
  display: flex;
  align-items: flex-start;
}

.commitment-box {
  background: #ffffff;
  border: 1px solid var(--gray-border);
  border-left: 5px solid var(--primary);
  padding: 24px;
  border-radius: var(--radius-sm);
  display: flex;
  gap: 20px;
  align-items: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
}

.commitment-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.commitment-text h4 {
  font-size: 1.05rem;
  text-transform: uppercase;
  margin-bottom: 6px;
  color: var(--dark);
}

.commitment-text p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.6;
}

/* Sidebar Specifications Card */
.project-spec-card {
  background: #ffffff;
  border: 1px solid var(--gray-border);
  border-top: 4px solid var(--primary);
  padding: 28px 24px;
  border-radius: var(--radius-sm);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
  margin-bottom: 25px;
}

.spec-card-title {
  font-size: 1.15rem;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--dark);
  border-bottom: 1px solid var(--gray-border);
  padding-bottom: 12px;
}

.spec-card-title i {
  color: var(--primary);
}

.spec-item-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 0;
  margin: 0;
}

.spec-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-bottom: 1px dashed #edf0f5;
  padding-bottom: 12px;
}

.spec-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.spec-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Montserrat', sans-serif;
}

.spec-label i {
  color: var(--primary);
  font-size: 0.85rem;
  width: 16px;
}

.spec-value {
  font-size: 0.94rem;
  color: var(--dark);
  font-weight: 600;
  line-height: 1.45;
}

/* Sidebar Help / Consultation Card */
.sidebar-help-card {
  background: var(--dark);
  color: #ffffff;
  padding: 28px 22px;
  border-radius: var(--radius-sm);
  text-align: center;
  border-bottom: 4px solid var(--accent);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.help-card-icon {
  width: 48px;
  height: 48px;
  background: rgba(255, 203, 86, 0.15);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  margin: 0 auto 15px;
  font-size: 1.3rem;
}

.sidebar-help-card h4 {
  font-size: 1.05rem;
  text-transform: uppercase;
  margin-bottom: 8px;
  color: #ffffff;
}

.sidebar-help-card p {
  font-size: 0.86rem;
  color: var(--gray);
  margin-bottom: 18px;
  line-height: 1.6;
}

.sidebar-phone-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary);
  color: #ffffff !important;
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.05rem;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  width: 100%;
  transition: all 0.2s ease;
}

.sidebar-phone-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  color: #ffffff !important;
}

.sidebar-subtext {
  display: block;
  font-size: 0.75rem;
  color: var(--gray);
  margin-top: 10px;
}

.related-projects-section {
  border-top: 1px solid var(--gray-border);
  padding-top: 55px;
  margin-top: 20px;
}


/* ==========================================================================
   WHY CHOOSE US / NĂNG LỰC CẠNH TRANH
   ========================================================================== */
.feature-box {
  background: #ffffff;
  padding: 30px 24px;
  border-radius: var(--radius-sm);
  border-bottom: 3px solid transparent;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
  transition: var(--transition);
}

.feature-box:hover {
  border-bottom-color: var(--primary);
  transform: translateY(-5px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
}

.feature-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 2rem;
  font-weight: 900;
  color: var(--gray-light);
  line-height: 1;
  margin-bottom: 14px;
  transition: var(--transition);
}

.feature-box:hover .feature-num {
  color: var(--primary);
}

.feature-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ==========================================================================
   ABOUT HIGHLIGHT SECTION
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.about-img-group {
  position: relative;
}

.about-main-img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 4px solid #ffffff;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.about-badge-card {
  position: absolute;
  bottom: -25px;
  right: -25px;
  background: var(--primary);
  color: #ffffff;
  padding: 24px 28px;
  border-radius: var(--radius-sm);
  box-shadow: 0 10px 25px rgba(237, 25, 37, 0.35);
  max-width: 220px;
  border-bottom: 4px solid var(--accent);
}

.about-badge-card .num {
  font-family: 'Montserrat', sans-serif;
  font-size: 2.8rem;
  font-weight: 900;
  line-height: 1;
  color: var(--accent);
}

.about-badge-card .text {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 6px;
}

/* ==========================================================================
   NEWS & BLOG CARDS
   ========================================================================== */
.news-card {
  background: #ffffff;
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
}

.news-img-box {
  height: 210px;
  overflow: hidden;
  position: relative;
}

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

.news-card:hover .news-img-box img {
  transform: scale(1.06);
}

.news-date {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: var(--dark);
  color: #ffffff;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-left: 3px solid var(--primary);
}

.news-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.news-category {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 8px;
}

.news-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 10px;
}

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

.news-excerpt {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 16px;
  flex-grow: 1;
}

.news-category-tabs {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.news-tab-btn {
  background: #ffffff;
  border: 1px solid var(--gray-border);
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.news-tab-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.news-tab-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 10px rgba(237, 25, 37, 0.25);
}


/* ==========================================================================
   PARTNERS & CLIENTS
   ========================================================================== */
.partner-logo-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
  align-items: center;
}

.partner-item {
  background: #ffffff;
  border: 1px solid var(--gray-border);
  padding: 20px;
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  filter: grayscale(100%);
  opacity: 0.75;
  transition: var(--transition);
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--dark);
  text-align: center;
}

.partner-item:hover {
  filter: grayscale(0%);
  opacity: 1;
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
}


/* ==========================================================================
   FORMS & INPUTS (FLAT DESIGN)
   ========================================================================== */

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 8px;
  color: var(--dark);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-border);
  background-color: #fbfcfd;
  border-radius: var(--radius-sm);
  color: var(--text-main);
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--primary);
  background-color: #ffffff;
  outline: none;
  box-shadow: 0 0 0 3px var(--primary-soft);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

/* ==========================================================================
   FOOTER (FLAT DESIGN)
   ========================================================================== */
.site-footer {
  background-color: var(--dark);
  color: var(--gray);
  padding-top: 75px;
  border-top: 4px solid var(--primary);
}

.footer-brand {
  margin-bottom: 20px;
}

.footer-brand-title {
  color: #ffffff;
  font-size: 1.25rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.footer-brand-title span {
  color: var(--primary);
}

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer-col-title {
  color: #ffffff;
  font-size: 1.05rem;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 12px;
}

.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background-color: var(--accent);
}

.footer-links li {
  margin-bottom: 11px;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gray);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-links a i {
  color: var(--primary);
  font-size: 0.75rem;
}

.footer-links a:hover {
  color: #ffffff;
  transform: translateX(5px);
}

.footer-contact-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.footer-contact-item i {
  color: var(--accent);
  font-size: 1.1rem;
  margin-top: 4px;
}

.footer-bottom {
  margin-top: 60px;
  padding: 22px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.84rem;
  color: var(--gray-dark);
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.footer-bottom a {
  color: var(--gray);
}

.footer-bottom a:hover {
  color: var(--primary);
}

/* ==========================================================================
   TOAST NOTIFICATION
   ========================================================================== */
.toast-msg {
  position: fixed;
  bottom: 25px;
  right: 25px;
  background: var(--dark);
  color: #ffffff;
  border-left: 4px solid var(--accent);
  padding: 16px 22px;
  border-radius: var(--radius-sm);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.92rem;
  z-index: 10000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast-msg.show {
  transform: translateY(0);
  opacity: 1;
}

/* Back to top button */
.back-to-top {
  position: fixed;
  bottom: 25px;
  right: 25px;
  width: 44px;
  height: 44px;
  background-color: var(--primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: var(--primary-dark);
  transform: translateY(-3px);
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.7rem;
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .partner-logo-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  #page-content {
    padding-top: 0;
  }

  /* Compact single-line Top Bar for tablet / mobile */
  .top-bar {
    padding: 5px 0;
    font-size: 0.74rem;
  }
  .top-bar-left {
    display: none;
  }
  .top-bar-inner {
    justify-content: center;
  }
  .top-bar-right {
    justify-content: center;
    gap: 14px;
    width: 100%;
    flex-wrap: nowrap;
  }
  .top-bar-item {
    font-size: 0.72rem;
    gap: 5px;
    white-space: nowrap;
  }

  /* Centered logo on Mobile navbar */
  .navbar {
    position: relative;
    justify-content: center;
    height: 66px;
  }
  .brand-logo {
    margin: 0 auto;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .brand-logo img {
    height: 40px;
    max-width: 210px;
  }

  /* Hide call button from mobile navbar */
  .navbar > .nav-action {
    display: none !important;
  }

  /* Position mobile hamburger button to the right */
  .mobile-toggle {
    display: block;
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    margin: 0;
  }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: #ffffff;
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 25px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-150%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.35s ease;
    border-bottom: 3px solid var(--primary);
  }
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-link {
    width: 100%;
    padding: 12px 0;
    color: var(--dark) !important;
    text-shadow: none !important;
    border-bottom: 1px solid var(--gray-border);
  }
  .has-dropdown {
    width: 100%;
  }
  .has-dropdown .nav-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .dropdown-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    box-shadow: none;
    border: none;
    border-left: 2px solid var(--primary-soft);
    background-color: #f8f9fb;
    margin: 4px 0 8px 12px;
    padding: 4px 0;
    min-width: unset;
    width: calc(100% - 12px);
  }
  .dropdown-menu::before {
    display: none;
  }
  .dropdown-item {
    padding: 9px 12px;
    font-size: 0.78rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  }

  .about-grid {
    grid-template-columns: 1fr;
  }
  .about-badge-card {
    right: 20px;
    bottom: -20px;
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .project-detail-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .detail-main-img-box {
    height: 340px;
  }
  .project-detail-title {
    font-size: 1.75rem;
  }

}

@media (max-width: 640px) {
  #page-content {
    padding-top: 0;
  }

  /* Ultra compact top bar on smartphones */
  .top-bar {
    padding: 3px 0;
    font-size: 0.68rem;
  }
  .top-bar-right {
    gap: 8px;
    justify-content: center;
    flex-wrap: nowrap;
  }
  .top-bar-item {
    font-size: 0.66rem;
    gap: 3px;
    white-space: nowrap;
  }
  .top-bar-item i {
    font-size: 0.68rem;
  }

  .brand-logo img {
    height: 36px;
    max-width: 190px;
  }
  .mobile-toggle {
    right: 15px;
  }
  .section {
    padding: 55px 0;
  }
  .hero-title {
    font-size: 2.1rem;
  }
  .section-title {
    font-size: 1.8rem;
  }
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  .hero-slider, .hero-slides {
    height: 100vh;
    min-height: 520px;
    max-height: 720px;
  }
  .hero-nav-btn {
    width: 38px;
    height: 38px;
    font-size: 0.95rem;
    background-color: rgba(22, 25, 30, 0.85);
  }
  .hero-nav-btn.prev {
    left: 8px;
  }
  .hero-nav-btn.next {
    right: 8px;
  }
  .partner-logo-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-item:not(:last-child)::after {
    display: none;
  }
  .stat-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 15px;
  }
  .page-banner-title {
    font-size: 1.9rem;
  }
}

@media (max-width: 400px) {
  .top-bar {
    font-size: 0.62rem;
  }
  .top-bar-right {
    gap: 6px;
  }
  .top-bar-item {
    font-size: 0.61rem;
  }
  .brand-logo img {
    height: 32px;
    max-width: 165px;
  }
  .mobile-toggle {
    right: 10px;
    font-size: 1.2rem;
  }
}

/* ==========================================================================
   LĨNH VỰC HOẠT ĐỘNG - SECTION HEADER & SECTOR NAV STYLES
   ========================================================================== */
.linh-vuc-hero-header {
  text-align: center;
  max-width: 1040px;
  margin: 0 auto 50px;
}

.linh-vuc-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-soft);
  color: var(--primary);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 8px 20px;
  border-radius: 30px;
  border: 1px solid rgba(237, 25, 37, 0.2);
  margin-bottom: 20px;
}

.linh-vuc-main-title {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--dark);
  text-transform: uppercase;
  line-height: 1.25;
  letter-spacing: -0.5px;
  margin-bottom: 18px;
}

.linh-vuc-main-title .highlight-red {
  color: var(--primary);
  position: relative;
  display: inline-block;
}

.linh-vuc-accent-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 0 auto 28px;
}

.linh-vuc-accent-line .line {
  width: 45px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}

.linh-vuc-accent-line .dot {
  width: 8px;
  height: 8px;
  background: var(--accent-dark);
  border-radius: 50%;
}

.linh-vuc-intro-box {
  background: #ffffff;
  border: 1px solid var(--gray-border);
  border-left: 5px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 30px 36px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
  text-align: center;
  margin-bottom: 20px;
}

.linh-vuc-intro-box p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-main);
  margin-bottom: 20px;
}

.linh-vuc-quick-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  padding-top: 18px;
  border-top: 1px dashed var(--gray-border);
}

.linh-vuc-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #f4f6f9;
  color: var(--dark);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 25px;
  border: 1px solid var(--gray-border);
  text-decoration: none;
  transition: var(--transition);
}

.linh-vuc-tag i {
  color: var(--primary);
  font-size: 0.95rem;
}

.linh-vuc-tag:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(237, 25, 37, 0.25);
}

.linh-vuc-tag:hover i {
  color: #ffffff;
}

/* Sector Nav Cards */
.sector-nav-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 65px;
}

.sector-nav-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-border);
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
}

.sector-nav-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary);
  transition: var(--transition);
}

.sector-nav-card.accent-card::before {
  background: var(--accent-dark);
}

.sector-nav-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.08);
  border-color: rgba(237, 25, 37, 0.3);
}

.sector-nav-card.accent-card:hover {
  border-color: rgba(229, 175, 58, 0.4);
}

.sector-nav-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.sector-nav-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  transition: var(--transition);
}

.sector-nav-card.accent-card .sector-nav-icon {
  background: var(--accent-soft);
  color: #c48b15;
}

.sector-nav-card:hover .sector-nav-icon {
  transform: scale(1.1);
  background: var(--primary);
  color: #ffffff;
}

.sector-nav-card.accent-card:hover .sector-nav-icon {
  background: var(--accent-dark);
  color: #ffffff;
}

.sector-nav-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.6rem;
  font-weight: 900;
  color: #e2e5eb;
  letter-spacing: -1px;
  transition: var(--transition);
}

.sector-nav-card:hover .sector-nav-num {
  color: var(--primary-soft);
}

.sector-nav-title {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
  line-height: 1.35;
  transition: var(--transition);
}

.sector-nav-card:hover .sector-nav-title {
  color: var(--primary);
}

.sector-nav-card.accent-card:hover .sector-nav-title {
  color: var(--accent-dark);
}

.sector-nav-desc {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.sector-nav-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: var(--transition);
}

.sector-nav-card.accent-card .sector-nav-action {
  color: #c48b15;
}

.sector-nav-card:hover .sector-nav-action {
  gap: 10px;
  color: var(--primary-dark);
}

@media (max-width: 992px) {
  .sector-nav-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .linh-vuc-main-title {
    font-size: 2.1rem;
  }
}

@media (max-width: 640px) {
  .sector-nav-grid {
    grid-template-columns: 1fr;
  }
  .linh-vuc-intro-box {
    padding: 22px 18px;
  }
  .linh-vuc-main-title {
    font-size: 1.75rem;
  }
}

/* ==========================================================================
   CONTACT PAGE (2 EQUAL COLUMNS: INFO & MAP SIDE-BY-SIDE)
   ========================================================================== */
.contact-main-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: stretch;
}

.contact-map-wrapper {
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
  min-height: 480px;
}

.contact-map-frame {
  flex: 1;
  min-height: 400px;
  position: relative;
  width: 100%;
}

.contact-map-frame iframe {
  border: 0;
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
}

@media (max-width: 992px) {
  .contact-main-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .contact-map-wrapper {
    min-height: 400px;
  }
  .contact-map-frame {
    min-height: 360px;
    height: 360px;
  }
}