/* ==========================================================================
   IIT Components & Custom Overrides (Aligned with Softar Template)
   ========================================================================== */

/* Custom Thin & Transparent Scrollbar (Desktop) */
html::-webkit-scrollbar,
body::-webkit-scrollbar,
::-webkit-scrollbar {
  width: 8px !important;
  height: 8px !important;
  background-color: transparent !important;
}

html::-webkit-scrollbar-track,
body::-webkit-scrollbar-track,
::-webkit-scrollbar-track {
  background: transparent !important;
  background-color: transparent !important;
}

html::-webkit-scrollbar-thumb,
body::-webkit-scrollbar-thumb,
::-webkit-scrollbar-thumb {
  background-color: #0284c7 !important;
  border-radius: 10px !important;
  border: 2px solid transparent !important;
  background-clip: content-box !important;
}

html::-webkit-scrollbar-thumb:hover,
body::-webkit-scrollbar-thumb:hover,
::-webkit-scrollbar-thumb:hover {
  background-color: #0369a1 !important;
}

/* Firefox */
html, body {
  scrollbar-width: thin !important;
  scrollbar-color: #0284c7 transparent !important;
}

/* Tiêu chuẩn hóa văn phong tiếng Việt (Sentence Case) - Hủy bỏ text-transform: capitalize không mong muốn */
body, h1, h2, h3, h4, h5, h6, p, span, a, button, input, label, select, textarea,
.banner-area h2, .banner-area h4, .text-capitalized h2, .area-title, .widget-title,
.btn, .badge, .badge-iit-hero, .sol-pillar-card h4, .sol-badge-tag, .filter-btn-pill {
  text-transform: none !important;
}

/* About Area Single Illustration Thumb */
.about-area .about-items .thumb {
  margin: 0 auto !important;
  padding: 0 !important;
  text-align: center !important;
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
}

.about-area .about-items .thumb img {
  box-shadow: none !important;
  border-radius: 0 !important;
  max-width: 560px !important;
  max-height: 520px !important;
  width: 95% !important;
  height: auto !important;
  position: static !important;
  display: inline-block !important;
  object-fit: contain !important;
}

/* Hugeicons Integration */
.hgi-stroke {
  vertical-align: middle;
  line-height: 1;
  display: inline-block;
}

/* ==========================================================================
   1. Seamless Hero-Integrated Navigation Bar (Floats on Hero, Solid on Scroll)
   ========================================================================== */
/* Header component container */
header#iit-navbar-component {
  position: relative;
  z-index: 99999;
}

/* Navbar Base Floating Setup */
nav.navbar,
nav.navbar.validnavs,
nav.navbar.validnavs.navbar-fixed,
nav.navbar.validnavs.navbar-mobile,
nav.navbar.validnavs.navbar-responsive,
.navbar.validnavs.navbar-fixed {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 99999 !important;
  transition: all 0.35s ease;
}

/* Khi ở Top: 100% trong suốt trên cả Desktop & Mobile */
nav.navbar:not(.navbar-scrolled),
nav.navbar.validnavs:not(.navbar-scrolled),
nav.navbar.navbar-mobile:not(.navbar-scrolled),
nav.navbar.navbar-fixed:not(.navbar-scrolled),
nav.navbar.navbar-default:not(.navbar-scrolled),
nav.navbar.navbar-responsive:not(.navbar-scrolled),
nav.navbar:not(.navbar-scrolled) .container,
nav.navbar:not(.navbar-scrolled) .navbar-header,
nav.navbar.navbar-mobile:not(.navbar-scrolled) .navbar-header {
  background: transparent !important;
  background-color: transparent !important;
  background-image: none !important;
  box-shadow: none !important;
  border: none !important;
  border-bottom: none !important;
}

/* Khi đã cuộn trang (> 30px) mới có class .navbar-scrolled và chuyển sang nền trắng cố định */
nav.navbar.navbar-scrolled,
nav.navbar.validnavs.navbar-scrolled,
nav.navbar.navbar-mobile.navbar-scrolled,
nav.navbar.navbar-fixed.navbar-scrolled {
  background: #ffffff !important;
  background-color: #ffffff !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08) !important;
  border-bottom: 1px solid #edf2f7 !important;
}

nav.navbar.navbar-scrolled .navbar-header,
nav.navbar.validnavs.navbar-scrolled .navbar-header,
nav.navbar.navbar-mobile.navbar-scrolled .navbar-header {
  background: #ffffff !important;
  background-color: #ffffff !important;
}

/* 1. Phòng Học Thông Minh (Hero chuẩn template index-3.html với Wave Bottom Shape 11.png) */
.banner-area.bg-bottom {
  background-color: #ffffff !important;
  background-image: url(../img/shape/11.png) !important;
  background-size: cover !important;
  background-position: bottom center !important;
  background-repeat: no-repeat !important;
}

/* 2. Phòng E-Learning (Vibrant Gradient Blue Hero) */
.banner-area.gradient-bg {
  background-color: #0284c7 !important;
  background-image: linear-gradient(155deg, #0284c7 0%, #0ea5e9 50%, #38bdf8 100%), url(../img/shape/bg-1.png) !important;
  background-size: cover !important;
  background-position: center top !important;
}

/* 3. Phòng STEM (Light Blue Tech Hero) */
.banner-area.top-pad-80.auto-height {
  background-color: #f0f9ff !important;
  background-image: linear-gradient(180deg, #dbeafe 0%, #eff6ff 60%, #ffffff 100%), url(../img/shape/2.png) !important;
  background-size: cover !important;
  background-position: center top !important;
}

/* 4. Trang Chủ (Soft Light Hero) */
.banner-area.bg-gradient {
  background: linear-gradient(180deg, #e0f2fe 0%, #f0f9ff 50%, #ffffff 100%) !important;
}

/* 5. Thư Viện Thông Minh (Modern Tech Library Hero với FULL-WIDTH Shape 16 trên nền trắng) */
.banner-area.library-hero {
  background-color: #ffffff !important;
  background: #ffffff !important;
  background-image: none !important;
}

.banner-area.library-hero::before,
.banner-area.library-hero::after,
.banner-area.library-hero .info::before,
.banner-area.library-hero .info::after {
  display: none !important;
  content: none !important;
}

.library-hero-shape {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

.library-hero-shape img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

/* Hero Bottom Wave Shape (17.png) */
.hero-bottom-shape {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  z-index: 1;
  pointer-events: none;
  line-height: 0;
  overflow: hidden;
  opacity: 0.12;
  transition: opacity 0.3s ease;
}

.hero-bottom-shape img {
  width: 100%;
  height: auto;
  min-height: 45px;
  display: block;
  object-fit: cover;
  object-position: bottom center;
}

/* Chuẩn hóa kích thước ảnh minh họa Hero trên Desktop */
.banner-area .thumb img,
.banner-area .double-items .thumb img,
.banner-area .big-thumb img {
  max-width: 100% !important;
  max-height: 480px !important;
  width: auto !important;
  height: auto !important;
  object-fit: contain !important;
  display: block !important;
  margin: 0 auto !important;
}

.header-logo, .navbar-brand img, .logo {
  max-height: 44px;
  width: auto;
  object-fit: contain;
  display: inline-block;
  vertical-align: middle;
  transition: all 0.2s ease;
}

/* Responsive Logo & Mobile Header Navigation */
.navbar-toggle {
  display: none !important;
}

/* Override bootsnav.css overlay-screen (global scope) */
/* bootsnav.css line 3466 sets background: var(--dark) opacity 0.6 without position:fixed
   → causes full dark gray screen on mobile. This global override wins by source order. */
.overlay-screen {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  background: rgba(15, 23, 42, 0.5) !important;
  z-index: 99980 !important;
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
  transition: opacity 0.3s ease, visibility 0.3s ease !important;
}

.overlay-screen.opened {
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
  background: rgba(15, 23, 42, 0.5) !important;
}

/* Mobile Sidenav Drawer Styles */
@media (max-width: 991px) {

  .navbar-toggle {
    display: inline-flex !important;
    background: transparent !important;
    border: none !important;
    font-size: 26px !important;
    line-height: 1 !important;
    padding: 6px 10px !important;
    cursor: pointer !important;
    align-items: center !important;
    justify-content: center !important;
    color: #1e293b;
    border-radius: 8px;
    transition: all 0.2s ease;
  }

  .navbar.validnavs.navbar-fixed.no-background.nav-dark-hero .navbar-toggle {
    color: #ffffff !important;
  }

  .navbar.validnavs.navbar-fixed:not(.no-background) .navbar-toggle {
    color: #1e293b !important;
  }

  .header-logo, .navbar-brand img, .logo {
    max-height: 32px !important;
  }
  .navbar-brand {
    padding: 10px 0 !important;
  }

  /* Overlay backdrop */
  .overlay-screen {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    background: rgba(15, 23, 42, 0.5) !important;
    z-index: 99980 !important;
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
    transition: opacity 0.3s ease, visibility 0.3s ease !important;
  }

  .overlay-screen.opened {
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    background: rgba(15, 23, 42, 0.5) !important;
  }

  /* Sidenav drawer */
  nav.navbar .navbar-collapse#navbar-menu {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 300px !important;
    max-width: 85vw !important;
    height: 100vh !important;
    height: 100dvh !important;
    background: #ffffff !important;
    z-index: 100005 !important;
    box-shadow: 4px 0 25px rgba(0, 0, 0, 0.2) !important;
    display: flex !important;
    flex-direction: column !important;
    overflow-y: auto !important;
    transform: translateX(-100%) !important;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1) !important;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
  }

  nav.navbar .navbar-collapse#navbar-menu.show,
  nav.navbar .navbar-collapse#navbar-menu.in,
  nav.navbar .navbar-collapse#navbar-menu.open {
    transform: translateX(0) !important;
    pointer-events: auto !important;
  }

  /* Mobile Drawer Header */
  .mobile-drawer-header {
    width: 100% !important;
    background: #ffffff !important;
    padding: 16px 20px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    border-bottom: 1px solid #f1f5f9 !important;
    margin: 0 !important;
    box-sizing: border-box !important;
  }

  .mobile-drawer-header .header-logo,
  .mobile-drawer-header img {
    max-height: 34px !important;
    width: auto !important;
    display: block !important;
    background: transparent !important;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
  }

  nav.navbar .navbar-collapse#navbar-menu .btn-close-nav {
    position: static !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 36px !important;
    height: 36px !important;
    border-radius: 50% !important;
    background: #f8fafc !important;
    border: 1px solid #e2e8f0 !important;
    color: #334155 !important;
    padding: 0 !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
    margin: 0 !important;
    top: auto !important;
    right: auto !important;
  }

  nav.navbar .navbar-collapse#navbar-menu .btn-close-nav:hover {
    background: #f1f5f9 !important;
    color: #0f172a !important;
  }

  /* Drawer links */
  nav.navbar .navbar-collapse#navbar-menu .navbar-nav {
    width: 100% !important;
    padding: 15px 20px !important;
    margin: 0 !important;
    float: none !important;
  }

  nav.navbar .navbar-collapse#navbar-menu .navbar-nav > li {
    display: block !important;
    width: 100% !important;
    float: none !important;
  }

  nav.navbar .navbar-collapse#navbar-menu .navbar-nav > li > a {
    color: #1e293b !important;
    font-size: 15.5px !important;
    font-weight: 700 !important;
    padding: 14px 10px !important;
    border-bottom: 1px solid #f1f5f9 !important;
    text-shadow: none !important;
    display: block !important;
  }

  nav.navbar .navbar-collapse#navbar-menu .navbar-nav > li.active > a,
  nav.navbar .navbar-collapse#navbar-menu .navbar-nav > li > a:hover {
    color: #118bba !important;
  }
}

/* Default dark nav links (for light heroes: Trang chủ, Phòng STEM, Thư viện) */
.navbar.validnavs .navbar-nav > li > a {
  font-size: 15px;
  font-weight: 700;
  color: #1e293b !important;
  padding: 26px 16px !important;
  transition: all 0.25s ease;
}

.navbar.validnavs .navbar-nav > li > a:hover,
.navbar.validnavs .navbar-nav > li.active > a,
.navbar.validnavs .navbar-nav > li > a.active {
  color: #118bba !important;
}

/* White nav links when floating on DARK heroes (Phòng học thông minh, Phòng E-Learning) */
.navbar.validnavs.navbar-fixed.no-background.nav-dark-hero .navbar-nav > li > a {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 700 !important;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* Pure bold white for active item on dark heroes */
.navbar.validnavs.navbar-fixed.no-background.nav-dark-hero .navbar-nav > li.active > a,
.navbar.validnavs.navbar-fixed.no-background.nav-dark-hero .navbar-nav > li > a.active {
  color: #ffffff !important;
  font-weight: 800 !important;
  opacity: 1 !important;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

.navbar.validnavs.navbar-fixed.no-background.nav-dark-hero .navbar-nav > li > a:hover {
  color: #ffffff !important;
  opacity: 1 !important;
}

/* When scrolled down on ANY page: Background is white, text is always crisp dark */
.navbar.validnavs.navbar-fixed:not(.no-background) .navbar-nav > li > a {
  color: #1e293b !important;
  text-shadow: none !important;
}

.navbar.validnavs.navbar-fixed:not(.no-background) .navbar-nav > li.active > a,
.navbar.validnavs.navbar-fixed:not(.no-background) .navbar-nav > li > a.active,
.navbar.validnavs.navbar-fixed:not(.no-background) .navbar-nav > li > a:hover {
  color: #118bba !important;
}

.btn-iit-hotline {
  background: linear-gradient(135deg, #118bba 0%, #4ac4f3 100%) !important;
  color: #ffffff !important;
  font-weight: 700 !important;
  border-radius: 40px !important;
  padding: 10px 22px !important;
  border: none !important;
  box-shadow: 0 4px 15px rgba(74, 196, 243, 0.35);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-iit-hotline:hover {
  transform: translateY(-2px);
  color: #ffffff !important;
  box-shadow: 0 6px 20px rgba(74, 196, 243, 0.45);
}

/* ==========================================================================
   2. Hero Section Typography & Positioning
   ========================================================================== */
.banner-area {
  padding-top: 140px !important;
  padding-bottom: 80px !important;
}

.banner-area .info h2,
.banner-area .content-box .info h2 {
  font-size: 44px !important;
  line-height: 1.3 !important;
  word-break: normal !important;
  overflow-wrap: normal !important;
  margin-bottom: 18px !important;
  font-weight: 800 !important;
}

.banner-area .info p,
.banner-area .content-box .info p {
  font-size: 16px !important;
  line-height: 1.65 !important;
}

@media (max-width: 1199px) and (min-width: 992px) {
  .banner-area .info h2,
  .banner-area .content-box .info h2 {
    font-size: 41px !important;
  }
}

@media (max-width: 991px) {
  .banner-area {
    padding-top: 110px !important;
    padding-bottom: 50px !important;
  }
  .banner-area .info h2,
  .banner-area .content-box .info h2 {
    font-size: 30px !important;
  }
}

.badge-iit-hero {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(17, 139, 186, 0.12);
  color: #118bba;
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 15px;
}

/* ==========================================================================
   3. Redesigned 4 Pillars of Solution Cards (index.html)
   ========================================================================== */
.sol-pillar-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  padding: 38px 24px 28px;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.sol-pillar-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #118bba, #4ac4f3);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.sol-pillar-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(17, 139, 186, 0.12);
  border-color: #bae6fd;
}

.sol-pillar-card:hover::before {
  opacity: 1;
}

.sol-pillar-card .sol-icon-box {
  height: 68px;
  width: 68px;
  background: linear-gradient(135deg, #e0f2fe 0%, #f0fdfa 100%);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  color: #118bba;
  font-size: 32px;
  box-shadow: 0 6px 16px rgba(17, 139, 186, 0.1);
  transition: all 0.3s ease;
}

.sol-pillar-card:hover .sol-icon-box {
  background: linear-gradient(135deg, #118bba 0%, #4ac4f3 100%);
  color: #ffffff;
  transform: scale(1.08);
}

.sol-pillar-card .sol-badge-tag {
  display: inline-block;
  background: #f1f5f9;
  color: #0284c7;
  font-size: 12.5px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
  border: 1px solid #e2e8f0;
}

.sol-pillar-card h4 {
  font-size: 19px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 12px;
}

.sol-pillar-card h4 a {
  color: #0f172a;
  transition: color 0.2s ease;
}

.sol-pillar-card h4 a:hover {
  color: #118bba;
}

.sol-pillar-card p {
  font-size: 14px;
  color: #64748b;
  line-height: 1.6;
  margin-bottom: 22px;
  flex-grow: 1;
}

.sol-pillar-card .btn-sol-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 10px 18px;
  border-radius: 30px;
  background: #f8fafc;
  border: 1.5px solid #e2e8f0;
  color: #0f172a;
  font-size: 13.5px;
  font-weight: 700;
  transition: all 0.25s ease;
  text-decoration: none;
}

.sol-pillar-card:hover .btn-sol-action {
  background: linear-gradient(135deg, #118bba 0%, #4ac4f3 100%);
  border-color: #118bba;
  color: #ffffff !important;
  box-shadow: 0 4px 14px rgba(17, 139, 186, 0.3);
}

/* ==========================================================================
   4. Filter & Budget Selector Redesign (Symmetrical, Clean, Responsive)
   ========================================================================== */
.catalog-toolbar-wrapper {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  padding: 24px 28px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
  margin-bottom: 35px;
}

.filter-row-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.filter-row-label {
  font-size: 13.5px;
  font-weight: 800;
  color: #0f172a;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  min-width: 130px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-pill-container {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  flex-grow: 1;
}

.filter-btn-pill {
  background: #f8fafc;
  border: 1.5px solid #e2e8f0;
  color: #334155;
  font-size: 14px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 30px;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.filter-btn-pill:hover {
  background: #f1f5f9;
  border-color: #cbd5e1;
  color: #0f172a;
  transform: translateY(-1px);
}

.filter-btn-pill.active {
  background: linear-gradient(135deg, #118bba 0%, #4ac4f3 100%);
  border-color: #118bba;
  color: #ffffff !important;
  box-shadow: 0 4px 14px rgba(17, 139, 186, 0.35);
  font-weight: 700;
}

.catalog-search-input-wrap {
  position: relative;
  min-width: 260px;
  flex-grow: 1;
  max-width: 360px;
}

.catalog-search-input-wrap input {
  width: 100%;
  padding: 10px 18px 10px 42px;
  border-radius: 30px;
  border: 1.5px solid #e2e8f0;
  background: #f8fafc;
  font-size: 14px;
  min-height: 44px;
  transition: all 0.2s ease;
}

.catalog-search-input-wrap input:focus {
  background: #ffffff;
  border-color: #118bba;
  box-shadow: 0 0 0 3px rgba(17, 139, 186, 0.15);
  outline: none;
}

.catalog-search-input-wrap i {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: #94a3b8;
  font-size: 17px;
}

/* Status Bar below filter */
.catalog-status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
  padding: 14px 20px;
  background: #f1f5f9;
  border-radius: 12px;
  margin-top: 20px;
}

.catalog-status-bar .status-text {
  font-size: 14.5px;
  color: #334155;
  display: flex;
  align-items: center;
  gap: 8px;
}

.catalog-status-bar .status-badge {
  background: #118bba;
  color: #ffffff;
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
}

/* ==========================================================================
   5. Clean Minimal Product Card
   ========================================================================= */
.product-item-clean {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 18px;
  padding: 26px 16px 18px;
  text-align: center;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.03);
  position: relative;
  box-sizing: border-box;
}

.product-item-clean:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 32px rgba(17, 139, 186, 0.12);
  border-color: #38bdf8;
}

.product-item-clean .thumb {
  width: 100%;
  height: 125px;
  flex-shrink: 0;
  background: #ffffff !important;
  border: none !important;
  box-shadow: none !important;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  margin: 0 0 12px 0;
  position: relative;
}

/* Icon Device Box (Hugeicons) */
.icon-device-box {
  width: 82px;
  height: 82px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(2, 132, 199, 0.06) 0%, rgba(56, 189, 248, 0.12) 100%);
  border: 1.5px solid rgba(2, 132, 199, 0.16);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 38px;
  color: #0284c7;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.product-item-clean:hover .icon-device-box {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  color: #ffffff;
  transform: scale(1.08) translateY(-2px);
  box-shadow: 0 12px 24px rgba(2, 132, 199, 0.3);
  border-color: transparent;
}

.product-item-clean .thumb img {
  max-height: 100%;
  max-width: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: none !important;
  box-shadow: none !important;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.product-item-clean:hover .thumb img {
  transform: scale(1.04);
  filter: none !important;
  box-shadow: none !important;
}

.badge-category {
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 20px;
  letter-spacing: 0.2px;
  z-index: 10;
  line-height: 1.2;
  display: inline-flex;
  align-items: center;
}

.badge-furniture {
  background: #fef3c7;
  color: #b45309;
  border: 1px solid #fde68a;
  box-shadow: 0 2px 5px rgba(180, 83, 9, 0.08);
}

.badge-stem {
  background: #ede9fe;
  color: #6d28d9;
  border: 1px solid #ddd6fe;
  box-shadow: 0 2px 5px rgba(109, 40, 217, 0.08);
}

.badge-software {
  background: #ecfdf5;
  color: #047857;
  border: 1px solid #a7f3d0;
  box-shadow: 0 2px 5px rgba(4, 120, 87, 0.08);
}

.product-item-clean .info {
  width: 100%;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-grow: 1;
  margin-top: auto;
}

.product-item-clean .info h5 {
  font-size: 14px;
  font-weight: 700;
  color: #1e293b;
  line-height: 1.38;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.25s ease;
}

.product-item-clean:hover .info h5 {
  color: #0284c7;
}

/* ==========================================================================
   5.1 Responsive 5-Column Grid Layout (Desktop: 5 Cột, Tablet: 3-4 Cột, Mobile: 1-2 Cột)
   ========================================================================== */
@media (min-width: 1200px) {
  .col-xl-custom-5 {
    flex: 0 0 20% !important;
    max-width: 20% !important;
    width: 20% !important;
  }
}

@media (min-width: 992px) and (max-width: 1199.98px) {
  .col-xl-custom-5 {
    flex: 0 0 25% !important;
    max-width: 25% !important;
    width: 25% !important;
  }
}

@media (min-width: 768px) and (max-width: 991.98px) {
  .col-xl-custom-5 {
    flex: 0 0 33.333333% !important;
    max-width: 33.333333% !important;
    width: 33.333333% !important;
  }
}

@media (min-width: 576px) and (max-width: 767.98px) {
  .col-xl-custom-5 {
    flex: 0 0 50% !important;
    max-width: 50% !important;
    width: 50% !important;
  }
}

/* Mobile (< 576px): Thiết lập 2 CỘT thiết bị */
@media (max-width: 575.98px) {
  .col-xl-custom-5 {
    flex: 0 0 50% !important;
    max-width: 50% !important;
    width: 50% !important;
    padding-left: 6px !important;
    padding-right: 6px !important;
  }

  .product-item-clean {
    padding: 16px 8px 12px !important;
    border-radius: 14px !important;
    margin-bottom: 0 !important;
  }

  .product-item-clean .thumb {
    height: 75px !important;
    margin-bottom: 8px !important;
  }

  .icon-device-box {
    width: 58px !important;
    height: 58px !important;
    border-radius: 14px !important;
    font-size: 26px !important;
  }

  .product-item-clean .info {
    min-height: 40px !important;
  }

  .product-item-clean .info h5 {
    font-size: 11.5px !important;
    line-height: 1.35 !important;
    font-weight: 600 !important;
    -webkit-line-clamp: 3 !important;
  }

  /* Toolbar Filter Pills trên mobile nhỏ gọn */
  .filter-btn-pill {
    padding: 6px 12px !important;
    font-size: 12px !important;
    border-radius: 20px !important;
  }
}

/* ==========================================================================
   5.2 Category Group Headers & Dividers (Tách phân loại thành danh mục riêng)
   ========================================================================== */
.catalog-group-header-wrap {
  width: 100%;
}

.catalog-group-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 0 10px;
}

.group-title-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.group-icon-badge {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.group-icon-badge.badge-hardware-hdr {
  background: rgba(2, 132, 199, 0.1);
  color: #0284c7;
  border: 1px solid rgba(2, 132, 199, 0.2);
}

.group-icon-badge.badge-stem-hdr {
  background: rgba(109, 40, 217, 0.1);
  color: #6d28d9;
  border: 1px solid rgba(109, 40, 217, 0.2);
}

.group-icon-badge.badge-software-hdr {
  background: rgba(5, 150, 105, 0.1);
  color: #059669;
  border: 1px solid rgba(5, 150, 105, 0.2);
}

.group-icon-badge.badge-furniture-hdr {
  background: rgba(217, 119, 6, 0.1);
  color: #d97706;
  border: 1px solid rgba(217, 119, 6, 0.2);
}

.group-title-text {
  font-size: 18px;
  font-weight: 800;
  color: #0f172a;
  margin: 0;
  letter-spacing: -0.2px;
}

.group-count-pill {
  background: #f1f5f9;
  color: #475569;
  border: 1px solid #e2e8f0;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
}

.group-header-divider {
  height: 2px;
  background: linear-gradient(90deg, #0284c7 0%, rgba(2, 132, 199, 0.15) 50%, rgba(226, 232, 240, 0.3) 100%);
  border-radius: 2px;
  margin-top: 4px;
}


/* ==========================================================================
   6. Universal Icon Rendering Fixes (Overrides Template Webkit Fill Bugs)
   ========================================================================== */
.advanced-features-area .af-items .item i,
.advanced-features-area .af-items .item .icon i,
.our-features-area .feature-items .item .icon i,
.our-features-area .feature-items .item .icon > i,
.choose-us-area .item-box ul li i,
.process-area .info li .icon i,
.features-area .feature-box .single-item .item i {
  -webkit-text-fill-color: initial !important;
  -webkit-background-clip: initial !important;
  background-clip: initial !important;
  background: transparent !important;
  color: #118bba !important;
  display: inline-block !important;
  line-height: 1 !important;
  font-style: normal !important;
}

/* Advanced Features Area (Screenshot 5 Styling) */
.advanced-features-area .af-items .item {
  padding: 45px 25px;
  background: #ffffff;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  border-radius: 18px;
  transition: all 0.35s ease-in-out;
  border-bottom: 3px solid transparent;
  border: 1px solid #edf2f7;
  height: 100%;
}

.advanced-features-area .af-items .item:hover {
  transform: translateY(-8px);
  box-shadow: 0 18px 40px rgba(17, 139, 186, 0.12);
  border-bottom: 3px solid #118bba;
}

.advanced-features-area .af-items .item .icon {
  margin-bottom: 24px;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  height: 72px;
  width: 72px;
  background: #f0f9ff !important;
  border-radius: 18px;
  box-shadow: 0 6px 16px rgba(17, 139, 186, 0.1);
  margin-left: auto;
  margin-right: auto;
}

.advanced-features-area .af-items .item .icon::after {
  display: none !important;
}

.advanced-features-area .af-items .item .icon i {
  font-size: 34px !important;
  color: #118bba !important;
}

.advanced-features-area .af-items .item h4 {
  font-size: 18px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 12px;
}

.advanced-features-area .af-items .item p {
  font-size: 14px;
  color: #64748b;
  line-height: 1.6;
  margin: 0;
}

/* Our Features Area (ISO Badges on index.html) */
.our-features-area .feature-items .item .icon {
  height: 72px;
  width: 72px;
  background: #f0f9ff;
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  box-shadow: 0 6px 16px rgba(17, 139, 186, 0.1);
}

.our-features-area .feature-items .item .icon::after {
  display: none !important;
}

.our-features-area .feature-items .item .icon i {
  font-size: 32px !important;
  color: #118bba !important;
}

/* Process Area (Screenshot 4 Styling) */
.process-area .info {
  padding-left: 20px;
}

.process-area .info h2 {
  font-weight: 700;
  margin-bottom: 35px;
  font-size: 36px;
  color: #0f172a;
  line-height: 1.3;
}

.process-area .info ul {
  position: relative;
  z-index: 1;
  padding-left: 0;
  list-style: none;
}

.process-area .info li {
  margin-bottom: 35px;
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
}

.process-area .info li:last-child {
  margin-bottom: 0;
}

.process-area .info li i {
  background: transparent !important;
  padding: 0 !important;
  margin: 0 !important;
  line-height: 1 !important;
  font-size: 26px !important;
  color: #118bba !important;
}

.process-area .info li::after {
  left: 28px !important;
  background: #cbd5e1 !important;
}

.process-area .info li .icon {
  height: 56px !important;
  width: 56px !important;
  min-width: 56px !important;
  background: #e0f2fe !important;
  border-radius: 14px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  margin-right: 20px !important;
  box-shadow: 0 4px 12px rgba(17, 139, 186, 0.12) !important;
  position: relative;
  z-index: 2;
}

.process-area .info li .content h4 {
  font-weight: 700;
  font-size: 18px;
  color: #0f172a;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.process-area .info li .content h4 span {
  font-size: 12px;
  background: #f1f5f9;
  color: #118bba;
  padding: 3px 10px;
  border-radius: 20px;
  font-weight: 700;
  border: 1px solid #e2e8f0;
}

.process-area .info li .content p {
  font-size: 14px;
  color: #64748b;
  margin: 0;
  line-height: 1.6;
}

/* Choose Us Area (Screenshot 3 Styling) */
.choose-us-area .item-box h4 {
  font-size: 14px;
  font-weight: 800;
  color: #118bba;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.choose-us-area .item-box h2 {
  font-size: 36px;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.3;
  margin-bottom: 18px;
}

.choose-us-area .item-box p {
  font-size: 15px;
  color: #64748b;
  line-height: 1.65;
  margin-bottom: 24px;
}

/* ==========================================================================
   E-Learning Studio Feature Cards & Standard Measurement Box Redesign
   ========================================================================== */
.studio-feature-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 25px;
  margin-bottom: 24px;
}

@media (max-width: 575px) {
  .studio-feature-cards {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

.studio-feature-cards .feature-card-item {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 16px 18px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: all 0.25s ease;
}

.studio-feature-cards .feature-card-item:hover {
  background: #ffffff;
  border-color: #38bdf8;
  box-shadow: 0 8px 20px rgba(2, 132, 199, 0.08);
  transform: translateY(-2px);
}

.studio-feature-cards .feature-card-item .card-icon {
  height: 42px;
  width: 42px;
  min-width: 42px;
  background: rgba(2, 132, 199, 0.1);
  border: 1px solid rgba(2, 132, 199, 0.2);
  color: #0284c7;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.studio-feature-cards .feature-card-item .card-text {
  display: flex;
  flex-direction: column;
}

.studio-feature-cards .feature-card-item .card-text strong {
  font-size: 14.5px;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.4;
  margin-bottom: 3px;
}

.studio-feature-cards .feature-card-item .card-text span {
  font-size: 12.5px;
  color: #64748b;
  line-height: 1.5;
}

/* Standard Measurement Box */
.studio-standard-box {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  border: 1px solid #bae6fd;
  border-radius: 16px;
  padding: 20px 22px;
}

.studio-standard-box .standard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.studio-standard-box .standard-title {
  display: flex;
  align-items: center;
  font-size: 14.5px;
  color: #0f172a;
}

.studio-standard-box .standard-title i {
  font-size: 18px;
  color: #0284c7;
}

.studio-standard-box .standard-title strong {
  font-weight: 700;
}

.studio-standard-box .badge {
  background: #0284c7 !important;
  color: #ffffff !important;
  font-size: 12.5px !important;
  font-weight: 700 !important;
  padding: 4px 12px !important;
  border-radius: 20px !important;
}

.studio-standard-box .progress {
  height: 8px !important;
  border-radius: 10px !important;
  background: #cbd5e1 !important;
  overflow: hidden !important;
}

.studio-standard-box .progress-bar {
  background: linear-gradient(90deg, #0284c7 0%, #38bdf8 100%) !important;
  border-radius: 10px !important;
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.35) !important;
}

.studio-standard-box .standard-desc {
  font-size: 12.5px !important;
  color: #64748b !important;
  margin-top: 8px !important;
}

/* ==========================================================================
   8. About Area (GIỚI THIỆU DOANH NGHIỆP) & Remove "N" Artifacts
   ========================================================================== */
.about-area .info ul li::after,
.about-items .info ul li::after,
.about-area .info ul li::before,
.about-items .info ul li::before,
.choose-us-area .info ul li::after,
.choose-us-area .info ul li::before {
  display: none !important;
  content: "" !important;
}

.about-area .info ul,
.about-items .info ul {
  padding-left: 0 !important;
  list-style: none !important;
  margin-top: 25px !important;
}

.about-area .info ul li,
.about-items .info ul li {
  position: relative !important;
  padding-left: 0 !important;
  margin-bottom: 24px !important;
  display: flex !important;
  align-items: flex-start !important;
  gap: 16px !important;
}

.about-area .info ul li:last-child,
.about-items .info ul li:last-child {
  margin-bottom: 0 !important;
}

.about-item-icon-badge {
  height: 48px;
  width: 48px;
  min-width: 48px;
  background: linear-gradient(135deg, #e0f2fe 0%, #f0fdfa 100%);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #118bba;
  font-size: 22px;
  box-shadow: 0 4px 12px rgba(17, 139, 186, 0.12);
  margin-top: 2px;
}

.about-item-content {
  flex-grow: 1;
}

.about-item-content h5 {
  font-size: 17px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 6px;
}

.about-item-content p {
  font-size: 14.5px;
  color: #64748b;
  line-height: 1.6;
  margin: 0;
}

/* ==========================================================================
   7. Redesigned Contact & Consultation Section (index.html) - Grand Master Card
   ========================================================================== */
.contact-area.iit-contact-section {
  padding: 90px 0 !important;
}

.iit-contact-master-card {
  background: #ffffff;
  border-radius: 28px;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.08);
  border: 1px solid #e2e8f0;
  position: relative;
  overflow: visible !important;
}

/* Left Brand & Direct Channels Showcase */
.iit-contact-left-pane {
  background: linear-gradient(145deg, #091e3a 0%, #0d3b66 60%, #118bba 100%);
  padding: 50px 42px;
  color: #ffffff;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  border-top-left-radius: 27px;
  border-bottom-left-radius: 27px;
}

.iit-contact-left-pane::after {
  content: "";
  position: absolute;
  right: -50px;
  bottom: -50px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(74, 196, 243, 0.2) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.badge-iit-contact-dark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.12);
  color: #4ac4f3;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  border-radius: 30px;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  margin-bottom: 18px;
}

.iit-contact-left-pane h2 {
  font-size: 32px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.35;
  margin-bottom: 14px;
}

.iit-contact-left-pane h2 .text-cyan-glow {
  color: #4ac4f3;
  text-shadow: 0 0 20px rgba(74, 196, 243, 0.35);
}

.iit-contact-left-pane p {
  color: #cbd5e1;
  font-size: 14.5px;
  line-height: 1.65;
  margin-bottom: 28px;
}

/* Glassmorphism Contact Channels */
.iit-contact-channels {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.iit-contact-glass-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 13px 18px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  transition: all 0.25s ease;
  text-decoration: none;
}

.iit-contact-glass-card:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #4ac4f3;
  transform: translateX(6px);
}

.iit-contact-glass-card .channel-icon {
  height: 44px;
  width: 44px;
  min-width: 44px;
  background: rgba(74, 196, 243, 0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #4ac4f3;
  font-size: 22px;
  border: 1px solid rgba(74, 196, 243, 0.3);
}

.iit-contact-glass-card .channel-label {
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #94a3b8;
  margin-bottom: 2px;
}

.iit-contact-glass-card .channel-val {
  font-size: 15.5px;
  font-weight: 700;
  color: #ffffff;
  margin: 0;
}

/* Right Form Pane */
.iit-contact-right-pane {
  background: #ffffff;
  padding: 50px 45px;
  border-top-right-radius: 27px;
  border-bottom-right-radius: 27px;
  position: relative;
}

.iit-contact-right-pane h4 {
  font-size: 24px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 4px;
}

.iit-contact-right-pane .sub-label {
  font-size: 13.5px;
  color: #64748b;
  margin-bottom: 26px;
}

.iit-form-label {
  font-size: 13px;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 6px;
  display: block;
}

.iit-input-control {
  border: 1.5px solid #e2e8f0 !important;
  background: #f8fafc !important;
  border-radius: 10px !important;
  padding: 12px 16px !important;
  font-size: 14.5px !important;
  color: #0f172a !important;
  transition: all 0.2s ease !important;
  width: 100%;
}

.iit-input-control:focus {
  background: #ffffff !important;
  border-color: #0284c7 !important;
  box-shadow: 0 0 0 4px rgba(2, 132, 199, 0.12) !important;
  outline: none !important;
}

/* ==========================================================================
   Custom Select Dropdown Component (Premium Floating UI)
   ========================================================================== */
.iit-custom-select {
  position: relative;
  width: 100%;
  user-select: none;
}

.iit-select-trigger {
  width: 100% !important;
  background: #f8fafc !important;
  border: 1.5px solid #e2e8f0 !important;
  border-radius: 10px !important;
  padding: 12px 16px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  cursor: pointer !important;
  font-size: 14.5px !important;
  font-weight: 500 !important;
  color: #0f172a !important;
  box-shadow: none !important;
  transition: all 0.2s ease !important;
  text-align: left !important;
  outline: none !important;
}

.iit-select-trigger:hover {
  border-color: #0284c7 !important;
  background-color: #ffffff !important;
}

.iit-custom-select.is-open .iit-select-trigger,
.iit-select-trigger:focus {
  background-color: #ffffff !important;
  border-color: #0284c7 !important;
  box-shadow: 0 0 0 4px rgba(2, 132, 199, 0.12) !important;
  outline: none !important;
}

.iit-select-value {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.iit-select-value i {
  font-size: 18px;
  color: #0284c7;
  flex-shrink: 0;
}

.iit-selected-text {
  color: #0f172a;
  font-weight: 500;
  font-size: 14.5px;
}

.iit-select-arrow {
  font-size: 16px;
  color: #0284c7;
  margin-left: 10px;
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

.iit-custom-select.is-open .iit-select-arrow {
  transform: rotate(180deg);
}

/* Floating Options Menu */
.iit-select-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: #ffffff !important;
  border: 1.5px solid #e2e8f0 !important;
  border-radius: 14px !important;
  box-shadow: 0 20px 45px -5px rgba(15, 23, 42, 0.18), 0 4px 16px rgba(0, 0, 0, 0.08) !important;
  padding: 6px !important;
  list-style: none !important;
  margin: 0 !important;
  z-index: 9999 !important;
  max-height: 250px !important;
  overflow-y: auto !important;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Custom Scrollbar for Menu */
.iit-select-menu::-webkit-scrollbar {
  width: 5px;
}
.iit-select-menu::-webkit-scrollbar-track {
  background: #f8fafc;
  border-radius: 10px;
}
.iit-select-menu::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 10px;
}
.iit-select-menu::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

.iit-custom-select.is-open .iit-select-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.iit-select-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s ease;
  margin-bottom: 2px;
}

.iit-select-item:last-child {
  margin-bottom: 0;
}

.iit-select-item .item-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.iit-select-item .item-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: #f1f5f9;
  color: #0284c7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.iit-select-item .item-title {
  font-weight: 600;
  font-size: 13.5px;
  display: block;
  color: #1e293b;
  line-height: 1.3;
}

.iit-select-item .item-sub {
  font-size: 11.5px;
  color: #64748b;
  display: block;
  margin-top: 2px;
  line-height: 1.3;
}

.iit-select-item .check-icon {
  color: #0284c7;
  font-size: 18px;
  opacity: 0;
  transform: scale(0.7);
  transition: all 0.2s ease;
  flex-shrink: 0;
  margin-left: 8px;
}

.iit-select-item:hover {
  background: #f0f9ff;
}

.iit-select-item:hover .item-icon {
  background: #0284c7;
  color: #ffffff;
}

.iit-select-item:hover .item-title {
  color: #0284c7;
}

.iit-select-item.active {
  background: #e0f2fe;
}

.iit-select-item.active .item-icon {
  background: #0284c7;
  color: #ffffff;
}

.iit-select-item.active .item-title {
  color: #0369a1;
}

.iit-select-item.active .check-icon {
  opacity: 1;
  transform: scale(1);
}

.btn-iit-submit {
  background: linear-gradient(135deg, #118bba 0%, #4ac4f3 100%) !important;
  color: #ffffff !important;
  font-weight: 700 !important;
  border-radius: 12px !important;
  padding: 14px 24px !important;
  font-size: 15px !important;
  letter-spacing: 0.3px;
  border: none !important;
  box-shadow: 0 8px 24px rgba(17, 139, 186, 0.25) !important;
  transition: all 0.25s ease !important;
  width: 100%;
}

.btn-iit-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(17, 139, 186, 0.35) !important;
  color: #ffffff !important;
}

@media (max-width: 991px) {
  .iit-contact-left-pane {
    border-top-left-radius: 27px;
    border-top-right-radius: 27px;
    border-bottom-left-radius: 0;
  }
  .iit-contact-right-pane {
    border-top-right-radius: 0;
    border-bottom-left-radius: 27px;
    border-bottom-right-radius: 27px;
  }
  .iit-contact-left-pane,
  .iit-contact-right-pane {
    padding: 35px 25px;
  }
}

/* ==========================================================================
   IIT Custom Notification Modal (Thay thế Alert trình duyệt)
   ========================================================================== */
.iit-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.iit-modal-dialog {
  width: 100%;
  max-width: 440px;
  background: #ffffff;
  border-radius: 24px;
  padding: 36px 32px 30px;
  text-align: center;
  box-shadow: 0 25px 60px -12px rgba(15, 23, 42, 0.25), 0 0 0 1px rgba(15, 23, 42, 0.05);
  transform: scale(0.88) translateY(20px);
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.iit-modal-backdrop.is-active .iit-modal-dialog {
  transform: scale(1) translateY(0);
}

.iit-modal-icon-wrap {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  transition: all 0.3s ease;
}

.iit-modal-icon-wrap.is-success {
  background: rgba(17, 139, 186, 0.12);
  color: #118bba;
  border: 2px solid rgba(17, 139, 186, 0.25);
}

.iit-modal-icon-wrap.is-warning {
  background: rgba(245, 158, 11, 0.12);
  color: #f59e0b;
  border: 2px solid rgba(245, 158, 11, 0.25);
}

.iit-modal-icon-wrap.is-error {
  background: rgba(239, 68, 68, 0.12);
  color: #ef4444;
  border: 2px solid rgba(239, 68, 68, 0.25);
}

.iit-modal-title {
  font-size: 20px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 12px;
  line-height: 1.35;
}

.iit-modal-body {
  font-size: 14.5px;
  color: #475569;
  line-height: 1.65;
  margin-bottom: 26px;
}

.iit-modal-body strong {
  color: #0f172a;
  font-weight: 600;
}

.btn-iit-modal-close {
  background: linear-gradient(135deg, #118bba 0%, #4ac4f3 100%) !important;
  color: #ffffff !important;
  font-weight: 700 !important;
  border-radius: 12px !important;
  padding: 13px 28px !important;
  font-size: 14.5px !important;
  border: none !important;
  width: 100% !important;
  box-shadow: 0 8px 20px rgba(17, 139, 186, 0.25) !important;
  transition: all 0.25s ease !important;
}

.btn-iit-modal-close:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(17, 139, 186, 0.35) !important;
  color: #ffffff !important;
}

/* ==========================================================================
   9. Unified Stats Banner (index.html) - Fixed Split Background Issue
   ========================================================================== */
.clients-area.iit-stats-banner {
  background: linear-gradient(135deg, #0a192f 0%, #0f3460 60%, #118bba 100%) !important;
  position: relative;
  overflow: hidden;
  color: #ffffff;
  padding: 85px 0 !important;
}

.clients-area.iit-stats-banner::before,
.clients-area.iit-stats-banner::after {
  display: none !important;
}

.clients-area.iit-stats-banner .left-info h4 {
  color: #4ac4f3 !important;
  font-weight: 800 !important;
  font-size: 13.5px !important;
  letter-spacing: 1px !important;
  margin-bottom: 12px !important;
}

.clients-area.iit-stats-banner .left-info h2 {
  color: #ffffff !important;
  font-size: 34px !important;
  font-weight: 700 !important;
  line-height: 1.35 !important;
}

.clients-area.iit-stats-banner .left-info p {
  color: #cbd5e1 !important;
  font-size: 15.5px !important;
  line-height: 1.65 !important;
  margin: 0 !important;
}

.clients-area.iit-stats-banner ul.achivement {
  display: flex !important;
  align-items: center !important;
  justify-content: space-around !important;
  padding-left: 0 !important;
  margin: 0 !important;
  list-style: none !important;
}

@media (max-width: 991px) {
  .clients-area.iit-stats-banner ul.achivement {
    margin-top: 40px !important;
  }
}

@media (max-width: 575px) {
  .clients-area.iit-stats-banner ul.achivement {
    flex-direction: column !important;
    gap: 30px !important;
  }
  .clients-area.iit-stats-banner ul.achivement li {
    border-right: none !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12) !important;
    padding-bottom: 20px !important;
    width: 100% !important;
  }
  .clients-area.iit-stats-banner ul.achivement li:last-child {
    border-bottom: none !important;
  }
}

.clients-area.iit-stats-banner ul.achivement li {
  text-align: center !important;
  position: relative !important;
  padding: 0 25px !important;
  border-right: 1px solid rgba(255, 255, 255, 0.15) !important;
}

.clients-area.iit-stats-banner ul.achivement li:last-child {
  border-right: none !important;
}

.clients-area.iit-stats-banner .fun-fact .counter {
  font-size: 52px !important;
  font-weight: 800 !important;
  color: #ffffff !important;
  line-height: 1 !important;
  margin-bottom: 10px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}

.clients-area.iit-stats-banner .fun-fact .timer {
  color: #ffffff !important;
}

.clients-area.iit-stats-banner .fun-fact .operator {
  color: #4ac4f3 !important;
  margin-left: 2px !important;
}

.clients-area.iit-stats-banner .fun-fact .medium {
  font-size: 14px !important;
  font-weight: 700 !important;
  color: #94a3b8 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.5px !important;
  display: block !important;
}

/* ==========================================================================
   7. Hero Section & Mobile Responsive Adjustments
   ========================================================================= */

.mobile-br {
  display: none;
}

/* Dịch chuyển ảnh minh họa banner sang trái một chút trên màn hình máy tính lớn */
@media (min-width: 992px) {
  .banner-area .thumb.width-160 {
    transform: translateX(-50px) !important;
    transition: transform 0.3s ease;
  }
}

/* Các tùy biến giao diện sửa lỗi trên màn hình di động (mobile) */
@media (max-width: 991px) {
  /* 1. Header Navbar trên Mobile: Trong suốt 100% & lồng vào nền Hero khi ở Top */
  header#iit-navbar-component {
    position: relative !important;
    height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    z-index: 99999 !important;
  }

  nav.navbar,
  nav.navbar.validnavs,
  nav.navbar.navbar-mobile,
  nav.navbar.navbar-fixed,
  nav.navbar.navbar-default,
  nav.navbar.navbar-responsive {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    z-index: 99999 !important;
  }

  /* Khi ở Top: Trong suốt hoàn toàn */
  nav.navbar:not(.navbar-scrolled),
  nav.navbar.validnavs:not(.navbar-scrolled),
  nav.navbar.navbar-mobile:not(.navbar-scrolled),
  nav.navbar.navbar-fixed:not(.navbar-scrolled),
  nav.navbar.navbar-default:not(.navbar-scrolled),
  nav.navbar.navbar-responsive:not(.navbar-scrolled),
  nav.navbar:not(.navbar-scrolled) .container,
  nav.navbar:not(.navbar-scrolled) .navbar-header,
  nav.navbar.navbar-mobile:not(.navbar-scrolled) .navbar-header {
    background: transparent !important;
    background-color: transparent !important;
    background-image: none !important;
    box-shadow: none !important;
    border: none !important;
    border-bottom: none !important;
  }

  nav.navbar.navbar-mobile .navbar-header {
    min-height: 62px !important;
    height: 62px !important;
    position: relative !important;
    padding: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100% !important;
    background: transparent !important;
  }
  
  nav.navbar.navbar-mobile button.navbar-toggle {
    position: absolute !important;
    left: 12px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    margin: 0 !important;
    padding: 8px !important;
    z-index: 99 !important;
    display: inline-flex !important;
    background: transparent !important;
    border: none !important;
    float: none !important;
    cursor: pointer !important;
  }

  /* Nút hamburger icon trên trang Dark Hero (Phòng Học Thông Minh, E-Learning) khi ở Top */
  nav.navbar.nav-dark-hero:not(.navbar-scrolled) button.navbar-toggle i {
    color: #ffffff !important;
    text-shadow: 0 1px 6px rgba(0, 0, 0, 0.4) !important;
    font-size: 24px !important;
  }

  /* Nút hamburger icon trên trang Light Hero (Trang Chủ, STEM, Thư Viện) khi ở Top */
  nav.navbar:not(.nav-dark-hero):not(.navbar-scrolled) button.navbar-toggle i {
    color: #0284c7 !important;
    text-shadow: none !important;
    font-size: 24px !important;
  }

  /* Nút hamburger icon khi đã cuộn trang (.navbar-scrolled) */
  nav.navbar.navbar-scrolled button.navbar-toggle i {
    color: #1e293b !important;
    text-shadow: none !important;
    font-size: 24px !important;
  }
  
  nav.navbar.navbar-mobile a.navbar-brand {
    position: absolute !important;
    left: 50% !important;
    top: 50% !important;
    transform: translate(-50%, -50%) !important;
    margin: 0 !important;
    padding: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    height: 38px !important;
    width: auto !important;
    z-index: 10 !important;
    float: none !important;
  }
  
  nav.navbar.navbar-mobile .logo {
    max-height: 36px !important;
    height: 36px !important;
    width: auto !important;
    margin: 0 !important;
    display: block !important;
  }

  /* 2. Full Height Hero Section (100vh / 100dvh) trên Mobile cho tất cả các trang */
  .banner-area,
  .banner-area.bg-top,
  .banner-area.gradient-bg,
  .banner-area.bg-bottom,
  .banner-area.top-pad-80,
  .banner-area.auto-height,
  .banner-area.bg-gradient {
    min-height: 100vh !important;
    min-height: 100dvh !important;
    height: auto !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
    align-items: center !important;
    padding-top: 80px !important;
    padding-bottom: 40px !important;
    box-sizing: border-box !important;
    position: relative !important;
    overflow: hidden !important;
    text-align: center !important;
  }

  .banner-area .container {
    width: 100% !important;
    flex-grow: 1 !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
    padding-left: 16px !important;
    padding-right: 16px !important;
  }

  .banner-area .content-box,
  .banner-area.auto-height .content-box,
  .banner-area .double-items {
    padding-top: 0 !important;
    padding-bottom: 0 !important;
    margin-top: 0 !important;
    width: 100% !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
  }

  .banner-area .double-items .row,
  .banner-area .row {
    align-items: center !important;
    justify-content: center !important;
    width: 100% !important;
    margin: 0 !important;
  }

  .banner-area .info,
  .banner-area .info.shape,
  .banner-area.content-less .info {
    padding-top: 0 !important;
    margin-top: 0 !important;
    margin-bottom: 16px !important;
    text-align: center !important;
    width: 100% !important;
  }

  /* Badge IIT Hero */
  .badge-iit-hero {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 6px !important;
    padding: 6px 14px !important;
    font-size: 12px !important;
    font-weight: 700 !important;
    border-radius: 30px !important;
    margin-top: 0 !important;
    margin-bottom: 12px !important;
  }

  /* Tiêu đề H2 trong Hero trên cả 5 trang */
  .banner-area h1,
  .banner-area h2,
  .banner-area .info h2,
  .banner-area .info h2.hero-main-title,
  .banner-area .content-box .info h2 {
    font-size: 25px !important;
    line-height: 1.35 !important;
    margin-top: 0 !important;
    margin-bottom: 12px !important;
    text-align: center !important;
    font-weight: 800 !important;
  }
  
  .mobile-br {
    display: inline !important;
  }

  /* Đoạn mô tả P trong Hero */
  .banner-area p,
  .banner-area .info p,
  .banner-area .content-box .info p,
  .banner-area.text-center p,
  .banner-area .info.shape p {
    font-size: 14px !important;
    line-height: 1.55 !important;
    margin: 0 auto 16px !important;
    max-width: 98% !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
    text-align: center !important;
  }

  /* 3. Căn giữa và bố cục các nút CTA trên Mobile */
  .banner-area .button,
  .banner-area.text-center .button {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 10px !important;
    margin-top: 14px !important;
    width: 100% !important;
  }

  .banner-area .button a,
  .banner-area.text-center .button a {
    margin: 0 !important;
    width: 100% !important;
    max-width: 290px !important;
    text-align: center !important;
    display: inline-flex !important;
    justify-content: center !important;
    align-items: center !important;
    padding: 12px 20px !important;
    font-size: 14px !important;
    border-radius: 30px !important;
  }

  /* 4. Ảnh minh họa phía dưới Hero */
  .banner-area .thumb,
  .banner-area .double-items .thumb,
  .banner-area .big-thumb,
  .banner-area.auto-height .content-box .thumb-inner {
    margin-top: 25px !important;
    margin-bottom: 0 !important;
    padding: 0 !important;
    text-align: center !important;
    width: 100% !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
  }

  .banner-area .thumb img,
  .banner-area .double-items .thumb img,
  .banner-area .big-thumb img,
  .banner-area.auto-height .content-box .thumb-inner img {
    max-width: 85% !important;
    width: auto !important;
    height: auto !important;
    margin: 0 auto !important;
    display: inline-block !important;
  }

  /* 5. CTA Subscribe Card trên Mobile (Trang chủ và 4 trang giải pháp) */
  .subscribe-area .subscribe-items {
    padding: 40px 18px !important;
    border-radius: 16px !important;
  }

  .subscribe-area .subscribe-items h2 {
    font-size: 23px !important;
    line-height: 1.35 !important;
    margin-top: 0 !important;
    margin-bottom: 14px !important;
    word-break: normal !important;
  }

  .subscribe-area .subscribe-items p {
    font-size: 14px !important;
    line-height: 1.6 !important;
    margin: 0 auto 20px !important;
    max-width: 96% !important;
  }

  .subscribe-area .button {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 12px !important;
    margin-top: 20px !important;
    width: 100% !important;
  }

  .subscribe-area .button a.btn,
  .subscribe-area .button a {
    margin: 0 !important;
    width: 100% !important;
    max-width: 290px !important;
    display: inline-flex !important;
    justify-content: center !important;
    align-items: center !important;
    padding: 12px 20px !important;
    font-size: 14px !important;
    border-radius: 30px !important;
  }

  /* 6. Typography Headings trên Mobile (Tránh rớt lẻ 1 từ) */
  .clients-area.iit-stats-banner .left-info h2 {
    font-size: 22px !important;
    line-height: 1.35 !important;
    word-break: normal !important;
  }

  .iit-contact-left-pane h2 {
    font-size: 22px !important;
    line-height: 1.35 !important;
    word-break: normal !important;
  }

  .about-area .info h2 {
    font-size: 23px !important;
    line-height: 1.35 !important;
    margin-bottom: 20px !important;
  }

  .site-heading h2.area-title,
  .site-heading h2 {
    font-size: 23px !important;
    line-height: 1.35 !important;
  }

}

/* ==========================================================================
   IIT Stats Banner (Năng lực cung ứng)
   ========================================================================== */
.clients-area.iit-stats-banner {
  background: linear-gradient(135deg, #0d1b3e 0%, #152348 55%, #1a2d56 100%) !important;
  color: #ffffff !important;
}

.clients-area.iit-stats-banner .left-info h4 {
  color: #38bdf8 !important;
  font-size: 14px !important;
  font-weight: 700 !important;
  letter-spacing: 0.05em !important;
  text-transform: uppercase !important;
  margin-bottom: 15px !important;
  display: inline-flex !important;
  align-items: center !important;
}

.clients-area.iit-stats-banner .left-info h2 {
  color: #ffffff !important;
  font-size: 34px !important;
  font-weight: 800 !important;
  line-height: 1.35 !important;
}

.clients-area.iit-stats-banner .left-info p {
  color: #9badc8 !important;
  font-size: 15.5px !important;
  line-height: 1.7 !important;
  margin: 0 !important;
}

.clients-area.iit-stats-banner ul.achivement {
  display: flex !important;
  justify-content: flex-end !important;
  align-items: center !important;
  list-style: none !important;
  padding: 0 !important;
  margin: 0 !important;
  gap: 20px !important;
}

.clients-area.iit-stats-banner ul.achivement li {
  padding: 0 30px !important;
  border-right: 1px solid rgba(255, 255, 255, 0.15) !important;
  margin: 0 !important;
}

.clients-area.iit-stats-banner ul.achivement li:last-child {
  border-right: none !important;
  padding-right: 0 !important;
}

@media (max-width: 991px) {
  .clients-area.iit-stats-banner .left-info {
    text-align: center !important;
    margin-bottom: 35px !important;
  }
  .clients-area.iit-stats-banner ul.achivement {
    justify-content: center !important;
  }
}

/* ==========================================================================
   IIT Footer Professional Enhancements (Pixel-Perfect Form & Contact Info)
   ========================================================================== */

/* Nền Dark Blue & Border Top */
footer.iit-footer,
footer.bg-dark {
  background: linear-gradient(160deg, #0d1b3e 0%, #152348 55%, #1a2d56 100%) !important;
  border-top: 3px solid rgba(74, 196, 243, 0.25) !important;
  position: relative !important;
  overflow: hidden !important;
}

/* Separator dưới f-items */
footer.iit-footer .f-items {
  padding: 80px 0 50px !important;
}

/* Widget title màu trắng rõ nét với underline */
footer.iit-footer .widget-title {
  color: #ffffff !important;
  font-size: 16px !important;
  font-weight: 700 !important;
  letter-spacing: 0.03em !important;
  text-transform: uppercase !important;
  padding-bottom: 12px !important;
  position: relative !important;
  margin-bottom: 25px !important;
}

footer.iit-footer .widget-title::after {
  content: "" !important;
  position: absolute !important;
  bottom: 0 !important;
  left: 0 !important;
  width: 35px !important;
  height: 2.5px !important;
  background: var(--color-primary) !important;
  border-radius: 2px !important;
}

/* Text/link color trong f-items */
footer.iit-footer .f-items .f-item p,
footer.iit-footer .f-items .f-item,
footer.iit-footer .f-items .f-item a {
  color: #9badc8 !important;
  font-size: 14.5px !important;
  line-height: 1.7 !important;
}

footer.iit-footer .f-items .f-item a:hover {
  color: #ffffff !important;
}

/* 1. Newsletter Form Input & Button cố định bên trong input */
footer.iit-footer .f-item form {
  position: relative !important;
  margin-top: 25px !important;
  width: 100% !important;
  max-width: 360px !important;
}

footer.iit-footer .f-item form input.form-control,
footer.iit-footer .f-item form input {
  background: rgba(255, 255, 255, 0.07) !important;
  border: 1px solid rgba(74, 196, 243, 0.25) !important;
  color: #ffffff !important;
  height: 48px !important;
  border-radius: 24px !important;
  padding: 0 50px 0 18px !important;
  font-size: 14px !important;
  box-shadow: none !important;
  width: 100% !important;
  outline: none !important;
}

footer.iit-footer .f-item form input:focus {
  border-color: var(--color-primary) !important;
  background: rgba(255, 255, 255, 0.1) !important;
}

footer.iit-footer .f-item form input::placeholder {
  color: #7e9bbd !important;
}

footer.iit-footer .f-item form button {
  position: absolute !important;
  right: 4px !important;
  top: 4px !important;
  height: 40px !important;
  width: 40px !important;
  border-radius: 50% !important;
  background: linear-gradient(135deg, #0284c7 0%, #38bdf8 100%) !important;
  border: none !important;
  color: #ffffff !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  cursor: pointer !important;
  padding: 0 !important;
  transition: all 0.25s ease !important;
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.4) !important;
}

footer.iit-footer .f-item form button:hover {
  transform: scale(1.06) !important;
  background: #0284c7 !important;
}

footer.iit-footer .f-item form button i {
  font-size: 16px !important;
  color: #ffffff !important;
}

/* 2. Cột Links & Gói dự toán */
footer.iit-footer .f-item.link ul {
  list-style: none !important;
  padding: 0 !important;
  margin: 0 !important;
}

footer.iit-footer .f-item.link ul li {
  margin-bottom: 12px !important;
  display: flex !important;
  align-items: center !important;
}

footer.iit-footer .f-item.link ul li:last-child {
  margin-bottom: 0 !important;
}

footer.iit-footer .f-item.link ul li a,
footer.iit-footer .f-item.link ul li span {
  color: #9badc8 !important;
  font-size: 14.5px !important;
  display: inline-flex !important;
  align-items: center !important;
  text-decoration: none !important;
  transition: all 0.2s ease !important;
}

footer.iit-footer .f-item.link ul li a:hover {
  color: #ffffff !important;
  transform: translateX(4px) !important;
}

footer.iit-footer .f-item.link ul li i {
  font-size: 14px !important;
  margin-right: 6px !important;
  color: var(--color-primary) !important;
  flex-shrink: 0 !important;
}

/* 3. Cột Thông Tin Liên Hệ (Icon gọn gàng, không bị khung thừa, layout thẳng hàng) */
footer.iit-footer .f-item .address ul {
  list-style: none !important;
  padding: 0 !important;
  margin: 0 !important;
}

footer.iit-footer .f-item .address li {
  display: flex !important;
  align-items: center !important;
  margin-bottom: 18px !important;
}

footer.iit-footer .f-item .address li:last-child {
  margin-bottom: 0 !important;
}

footer.iit-footer .f-item .address li .icon {
  margin-right: 14px !important;
  flex-shrink: 0 !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
}

footer.iit-footer .f-item .address li .icon i {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  height: 40px !important;
  width: 40px !important;
  line-height: normal !important;
  border-radius: 10px !important;
  background: rgba(74, 196, 243, 0.12) !important;
  border: 1px solid rgba(74, 196, 243, 0.25) !important;
  color: var(--color-primary) !important;
  font-size: 18px !important;
}

footer.iit-footer .f-item .address li .content {
  display: flex !important;
  flex-direction: column !important;
}

footer.iit-footer .f-item .address li .content strong {
  font-size: 12.5px !important;
  color: #7e9bbd !important;
  font-weight: 500 !important;
  margin-bottom: 1px !important;
  display: block !important;
  text-transform: uppercase !important;
  letter-spacing: 0.02em !important;
}

footer.iit-footer .f-item .address li .content a {
  color: #ffffff !important;
  font-size: 14.5px !important;
  font-weight: 600 !important;
  text-decoration: none !important;
  transition: color 0.2s ease !important;
}

footer.iit-footer .f-item .address li .content a:hover {
  color: var(--color-primary) !important;
}

/* Triệt tiêu pseudo-element chia đôi background của contact-widget từ template gốc */
footer.iit-footer .f-items .f-item.contact-widget::after,
footer .f-items .f-item.contact-widget::after {
  display: none !important;
  content: none !important;
  width: 0 !important;
  height: 0 !important;
}

/* --- Footer Bottom Professional Independent Bar --- */
footer.iit-footer .footer-bottom {
  background: #081126 !important;
  background-color: #081126 !important;
  border-top: 1px solid rgba(74, 196, 243, 0.18) !important;
  padding: 16px 0 !important;
  position: relative !important;
  z-index: 100 !important;
}

footer.iit-footer .footer-bottom .container {
  padding-left: 15px !important;
  padding-right: 15px !important;
}

footer.iit-footer .footer-bottom-inner {
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
  width: 100% !important;
}

footer.iit-footer .footer-copyright p {
  color: #9badc8 !important;
  font-size: 13.5px !important;
  line-height: 1.5 !important;
  margin: 0 !important;
}

footer.iit-footer .footer-copyright p strong {
  color: #ffffff !important;
  font-weight: 600 !important;
}

footer.iit-footer .footer-trust-badges {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: flex-end !important;
  flex-wrap: wrap !important;
  gap: 16px 22px !important;
  margin: 0 !important;
  padding: 0 !important;
}

footer.iit-footer .footer-trust-badges .badge-item {
  color: #a3b8d6 !important;
  font-size: 13px !important;
  font-weight: 500 !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 6px !important;
  white-space: nowrap !important;
  text-decoration: none !important;
  transition: color 0.2s ease !important;
}

footer.iit-footer .footer-trust-badges .badge-item i {
  font-size: 15px !important;
  color: var(--color-primary) !important;
  display: inline-flex !important;
  align-items: center !important;
}

footer.iit-footer .footer-trust-badges a.badge-item:hover {
  color: #ffffff !important;
}

footer.iit-footer .footer-trust-badges a.badge-item:hover i {
  color: #ffffff !important;
}

/* Footer Bottom Responsive trên Tablet & Mobile (< 768px) */
@media (max-width: 767px) {
  footer.iit-footer .footer-bottom {
    padding: 20px 12px !important;
  }

  footer.iit-footer .footer-bottom-inner {
    flex-direction: column !important;
    justify-content: center !important;
    text-align: center !important;
    gap: 14px !important;
  }

  footer.iit-footer .footer-copyright p {
    font-size: 12px !important;
    text-align: center !important;
  }

  footer.iit-footer .footer-trust-badges {
    justify-content: center !important;
    gap: 8px 10px !important;
    width: 100% !important;
  }

  footer.iit-footer .footer-trust-badges .badge-item {
    font-size: 11.5px !important;
    background: rgba(255, 255, 255, 0.05) !important;
    padding: 5px 11px !important;
    border-radius: 20px !important;
    border: 1px solid rgba(74, 196, 243, 0.18) !important;
  }
}

/* ==========================================================================
   Preloader Styling (Thu nhỏ kích thước GIF & Khử bể pixel)
   ========================================================================== */
.se-pre-con {
  position: fixed !important;
  left: 0 !important;
  top: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  height: 100dvh !important;
  z-index: 999999 !important;
  background-color: #ffffff !important;
  background-image: url(../img/preloader.gif) !important;
  background-position: center center !important;
  background-repeat: no-repeat !important;
  background-size: 58px auto !important;
  image-rendering: -webkit-optimize-contrast;
}