/* 
 * Solar Energy Homepage Stylesheet
 * Brand: Kim Quang
 * Design System: Tech-Solar High-Contrast (UI-UX Pro Max)
 * Optimized for Contrast, Visual Harmony & Premium Aesthetics
 */

@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:ital,wght@0,400;0,500;0,600;0,700;0,800;1,700&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --color-primary: #80afc9;
  --color-primary-dark: #092C74;
  --color-primary-light: #E0EBF7;
  --color-secondary: #F4A300;
  --color-secondary-dark: #D48C00;
  --color-secondary-light: #FFF4DE;
  --color-bg-light: #F8FAFC;
  --color-text-dark: #0F172A;
  /* Enhanced contrast from #1E293B */
  --color-text-muted: #475569;
  /* Enhanced contrast from #64748B (WCAG AA Compliant) */
  --color-success: #16A34A;
  /* Darker green for better contrast */
  --color-dark-section: #091528;
  /* Deeper blue-black for high contrast */

  --font-heading: 'Be Vietnam Pro', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-pill: 9999px;

  --transition-fast: all 0.2s ease;
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);

  /* Premium Box Shadows */
  --shadow-premium: 0 16px 36px -12px rgba(9, 21, 40, 0.08), 0 0 0 1px rgba(9, 21, 40, 0.03);
  --shadow-premium-hover: 0 24px 48px -12px rgba(9, 21, 40, 0.16), 0 0 0 1px rgba(9, 21, 40, 0.06);

  /* ── Typography Scale (8-step) ─────────────────────────── */
  --fs-xs: 0.75rem;
  /* 12px – labels, badges, captions    */
  --fs-sm: 0.875rem;
  /* 14px – secondary text, tooltips    */
  --fs-base: 1rem;
  /* 16px – body / nav links            */
  --fs-md: 1.125rem;
  /* 18px – lead text, card body        */
  --fs-lg: 1.25rem;
  /* 20px – card titles, sub-headings   */
  --fs-xl: 1.5rem;
  /* 24px – section sub-titles          */
  --fs-2xl: 2rem;
  /* 32px – section titles (mobile)     */
  --fs-3xl: 2.5rem;
  /* 40px – section titles (desktop)    */
  --fs-4xl: 3.25rem;
  /* 52px – hero display headline       */
}

/* Global Reset & Base */
html,
body {
  font-family: var(--font-body);
  color: var(--color-text-dark);
  background-color: var(--color-bg-light);
  overflow-x: hidden !important;
  max-width: 100% !important;
  width: 100% !important;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-text-dark);
  letter-spacing: -0.015em;
}

a {
  text-decoration: none;
}

.text-primary-color {
  color: var(--color-primary) !important;
}

.text-secondary-color {
  color: var(--color-secondary) !important;
}

.bg-primary-color {
  background-color: var(--color-primary) !important;
}

.bg-secondary-color {
  background-color: var(--color-secondary) !important;
}

/* Section Spacing */
section {
  padding-top: 100px;
  padding-bottom: 100px;
  position: relative;
}

@media (max-width: 992px) {
  section {
    padding-top: 80px;
    padding-bottom: 80px;
  }
}

@media (max-width: 576px) {
  section {
    padding-top: 60px;
    padding-bottom: 60px;
  }
}

/* Typography Gradient & Shadow Highlights */
.display-large {
  font-size: var(--fs-4xl);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 800;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

@media (max-width: 768px) {
  .display-large {
    font-size: var(--fs-2xl);
  }
}

.section-title {
  font-size: var(--fs-3xl);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

@media (max-width: 768px) {
  .section-title {
    font-size: var(--fs-2xl);
  }
}

.lead-text {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.text-gradient-primary {
  background: linear-gradient(135deg, var(--color-primary) 20%, #2563EB 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-secondary {
  background: linear-gradient(135deg, #FFD043 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Buttons (UI-UX Pro Max Sharp Geometry) */
.btn-premium {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
  font-size: var(--fs-sm);
  letter-spacing: 0.06em;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-premium-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border: 1px solid var(--color-primary);
}

.btn-premium-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background-color: var(--color-secondary);
  transition: var(--transition-smooth);
  z-index: -1;
}

.btn-premium-primary:hover {
  color: #ffffffc4;
  border-color: var(--color-secondary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(244, 163, 0, 0.35);
}

.btn-premium-primary:hover::after {
  width: 100%;
}

.btn-premium-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-premium-secondary:hover {
  background-color: var(--color-primary);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(17, 70, 168, 0.15);
}

.btn-premium-outline-white {
  background-color: transparent;
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-premium-outline-white:hover {
  background-color: #FFFFFF;
  color: var(--color-primary);
  border-color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.15);
}

/* Header (Sticky & White Background) */
.header-navigation {
  background-color: #FFFFFF;
  padding-top: 12px;
  padding-bottom: 12px;
  transition: padding 0.35s cubic-bezier(0.16, 1, 0.3, 1),
    background-color 0.35s ease,
    box-shadow 0.35s ease,
    border-color 0.35s ease;
  border-bottom: 1px solid rgba(17, 70, 168, 0.08);
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(9, 21, 40, 0.02);
  will-change: padding, box-shadow;
}

.header-navigation.scrolled {
  padding-top: 6px;
  padding-bottom: 6px;
  background-color: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(17, 70, 168, 0.1);
  box-shadow: 0 8px 28px rgba(9, 21, 40, 0.08);
}

.navbar-brand img {
  height: 90px;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  transform-origin: left center;
  will-change: transform;
}

.header-navigation.scrolled .navbar-brand img {
  transform: scale(0.88);
}

.dropdown-toggle::after {
  content: none !important;
  border-top: 0px !important;
}

.nav-link .dropdown-icon {
  display: inline-block;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  font-size: 0.7rem;
  vertical-align: middle;
  margin-left: 5px;
}

@media (min-width: 992px) {
  .navbar-nav .dropdown:hover .nav-link .dropdown-icon {
    transform: rotate(180deg);
  }
}

.navbar-nav .dropdown.show .nav-link .dropdown-icon,
.navbar-nav .dropdown .nav-link[aria-expanded="true"] .dropdown-icon {
  transform: rotate(180deg) !important;
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-text-dark) !important;
  padding: 10px 16px !important;
  transition: var(--transition-fast);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary) !important;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 2px;
  background-color: var(--color-primary);
  transform: scaleX(0);
  transition: var(--transition-fast);
}

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

.navbar-nav .nav-link.dropdown-toggle::after {
  content: '' !important;
}

/* Maintain single-row header navigation on smaller desktop screens */
@media (min-width: 992px) and (max-width: 1399px) {
  .nav-link {
    font-size: 0.82rem;
    padding: 8px 10px !important;
  }

  .nav-link::after {
    left: 10px;
    right: 10px;
  }

  .navbar-nav {
    gap: 4px !important;
  }

  .header-navigation .btn-premium {
    padding: 8px 14px !important;
    font-size: 0.8rem;
  }

  .header-navigation .hotline-link {
    font-size: 0.8rem;
  }
}

/* Hero Section — Full Viewport Height */
.hero-section {
  height: 100vh;
  min-height: 860px;
  background-color: var(--color-dark-section);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding-top: 95px;
  /* offset sticky header */
  /* Override global section padding for hero */
  padding-bottom: 0;
}

@media (max-width: 991.98px) {
  .hero-section {
    height: auto;
    min-height: 700px;
    padding-top: 140px;
    padding-bottom: 100px;
    align-items: flex-start;
  }
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.8;
  z-index: 1;
  pointer-events: none;
}

.hero-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  /* Lighter gradient — left text readable, right shows vivid image */
  background: linear-gradient(105deg,
      rgba(9, 21, 40, 0.88) 0%,
      rgba(9, 21, 40, 0.65) 40%,
      rgba(9, 21, 40, 0.25) 70%,
      rgba(9, 21, 40, 0.05) 100%);
  z-index: 1;
}

@media (max-width: 991.98px) {
  .hero-bg-overlay {
    background: linear-gradient(to bottom,
        rgba(9, 21, 40, 0.90) 0%,
        rgba(9, 21, 40, 0.70) 55%,
        rgba(9, 21, 40, 0.40) 100%);
  }
}

.hero-swiper-container {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
}

.hero-swiper-container .swiper {
  width: 100%;
  height: 100%;
}

.hero-swiper-container .swiper-slide {
  position: relative;
  overflow: hidden;
}

.hero-swiper-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.05);
  transition: transform 10s ease;
}

.hero-swiper-container .swiper-slide-active img {
  transform: scale(1.12);
}

.hero-swiper-pagination {
  bottom: 40px !important;
  left: 50% !important;
  right: auto !important;
  transform: translateX(-50%) !important;
  width: auto !important;
  z-index: 10;
}

.hero-swiper-pagination .swiper-pagination-bullet {
  background: #FFFFFF !important;
  opacity: 0.5;
  width: 10px;
  height: 10px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.hero-swiper-pagination .swiper-pagination-bullet-active {
  background: var(--color-secondary) !important;
  opacity: 1;
  width: 24px;
}

/* Custom Sleek Next/Prev Navigation Buttons */
.hero-swiper-button {
  color: #FFFFFF !important;
  width: 46px !important;
  height: 46px !important;
  background-color: rgba(9, 21, 40, 0.4) !important;
  border: 1px solid rgba(255, 255, 255, 0.15) !important;
  border-radius: var(--radius-sm) !important;
  transition: var(--transition-fast) !important;
  z-index: 10 !important;
}

.hero-swiper-button::after {
  font-size: 1.1rem !important;
  font-weight: 900 !important;
}

.hero-swiper-button:hover {
  background-color: var(--color-primary) !important;
  border-color: var(--color-primary) !important;
  color: #FFFFFF !important;
  box-shadow: 0 4px 15px rgba(17, 70, 168, 0.3);
}

.swiper-button-prev.hero-swiper-button {
  left: 30px !important;
}

.swiper-button-next.hero-swiper-button {
  right: 30px !important;
}

@media (max-width: 768px) {
  .hero-swiper-button {
    display: none !important;
    /* Hide navigation buttons on mobile to avoid layout overlap */
  }

  .header-navigation,
  .header-navigation.scrolled {
    padding: 0px;
  }

  .py-5 {
    padding-top: 1.5rem !important;
    padding-bottom: 1.5rem !important;
  }
}

.hero-section h1 {
  color: #FFFFFF !important;
}

.hero-section p {
  color: rgba(255, 255, 255, 0.85) !important;
}

.hero-content-wrapper {
  position: relative;
  z-index: 2;
  width: 100%;
}

/* Statistics Section */
.stats-section {
  padding: 60px 0;
  background: #FFFFFF;
  position: relative;
  z-index: 10;
  border-bottom: 1px solid rgba(17, 70, 168, 0.06);
}

.stats-floating-panel {
  margin-top: 0;
  position: relative;
  z-index: 10;
}

.stats-card-wrapper {
  background-color: #FFFFFF;
  border-top: 4px solid var(--color-secondary);
  border-left: 1px solid rgba(17, 70, 168, 0.05);
  border-right: 1px solid rgba(17, 70, 168, 0.05);
  border-bottom: 1px solid rgba(17, 70, 168, 0.05);
  box-shadow: var(--shadow-premium);
  padding: 45px 30px;
  border-radius: var(--radius-sm);
  transition: var(--transition-smooth);
}

.stats-card-wrapper:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-premium-hover);
}

.stat-item {
  border-right: 1px solid rgba(0, 0, 0, 0.08);
}

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

@media (max-width: 768px) {
  .stat-item {
    border-right: none;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    padding-bottom: 20px;
    margin-bottom: 20px;
  }

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

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.35rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.stat-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-dark);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-top: 8px;
}

.solutions-section {
  border-bottom: 1px solid #dfe2ea;
}

/* Intro Section - uses global 120px section spacing */
.intro-section {
  background-color: #FFFFFF;
}

.timeline-horizontal {
  display: flex;
  gap: 24px;
  position: relative;
  margin-top: 30px;
  border-top: 1px solid rgba(17, 70, 168, 0.1);
  padding-top: 24px;
}

.timeline-horizontal-point {
  flex: 1;
  position: relative;
}

.timeline-horizontal-point::before {
  content: '';
  position: absolute;
  top: -32px;
  left: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--color-primary);
  border: 3px solid #FFFFFF;
  box-shadow: 0 0 0 3px var(--color-primary-light);
  transition: var(--transition-fast);
}

.timeline-horizontal-point:hover::before {
  background-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(244, 163, 0, 0.2);
}

.timeline-year {
  font-weight: 800;
  color: var(--color-primary);
  font-size: var(--fs-base);
}

.timeline-text {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: 1.4;
}

@media (max-width: 576px) {
  .timeline-horizontal {
    flex-direction: column;
    gap: 20px;
    border-top: none;
    border-left: 2px solid var(--color-primary-light);
    padding-top: 0;
    padding-left: 20px;
    margin-top: 20px;
  }

  .timeline-horizontal-point::before {
    top: 4px;
    left: -28px;
  }
}

.intro-image-wrapper {
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  border: 8px solid #FFFFFF !important;
  box-shadow: 0 20px 40px rgba(9, 21, 40, 0.08), 0 0 0 1px rgba(17, 70, 168, 0.1) !important;
  border-radius: var(--radius-sm) !important;
  overflow: hidden;
}

.intro-image-wrapper:hover {
  transform: translateY(-8px);
  box-shadow: 0 30px 60px rgba(9, 21, 40, 0.15), 0 0 0 1px rgba(17, 70, 168, 0.15) !important;
}

.intro-smooth-img {
  transition: transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.intro-image-wrapper:hover .intro-smooth-img {
  transform: scale(1.06);
}

/* Solutions 2-Card Layout Styling */
.solution-card-new {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: #FFFFFF;
  border: 1px solid rgba(17, 70, 168, 0.08);
  box-shadow: none;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 0 !important;
}

.solution-card-new:hover {
  transform: translateY(-8px);
  box-shadow: none;
  border-color: rgba(17, 70, 168, 0.15);
}

.solution-card-img-wrapper {
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: #f1f5f9;
  position: relative;
}

.solution-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.solution-card-img-wrapper .solution-badge-top {
  position: absolute;
  top: 15px;
  left: 15px;
  right: auto;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: center;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
  z-index: 2;
}

.hybrid-badge {
  background-color: var(--color-secondary-light);
  color: var(--color-secondary-dark);
  border: 1px solid rgba(244, 163, 0, 0.25);
}

.grid-tied-badge {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  border: 1px solid rgba(17, 70, 168, 0.25);
}

.off-grid-badge {
  background-color: rgb(201 230 212);
  color: var(--color-success);
  border: 1px solid rgba(22, 163, 74, 0.25);
}

.solution-card-content h3 {
  min-height: 56px;
  display: flex;
  align-items: center;
}

.solution-card-content p {
  min-height: 96px;
}

.solution-card-content .btn-premium {
  display: block;
  width: 100%;
  text-align: center;
}

/* Solution Diagrams */
.solution-diagram-wrapper {
  background-color: #F8FAFC;
  border: 1px dashed rgba(17, 70, 168, 0.08);
  border-radius: var(--radius-md);
  padding: 12px 10px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 20px !important;
}

.diagram-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 280px;
}

.diagram-node {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: #FFFFFF;
  border: 2px solid rgba(17, 70, 168, 0.15);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  position: relative;
}

.diagram-node.active,
.solution-card-new:hover .diagram-node.active,
.solution-visual-box:hover .diagram-node.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #FFFFFF;
  box-shadow: 0 0 12px rgba(17, 70, 168, 0.35);
  transform: scale(1.1);
}

.solution-card-new:hover .diagram-node:not(.active),
.solution-visual-box:hover .diagram-node:not(.active) {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: scale(1.1);
}

.diagram-node {
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.diagram-line {
  height: 2px;
  flex-grow: 1;
  margin: 0 5px;
  position: relative;
  background-color: rgba(17, 70, 168, 0.15);
}

.animated-dash-line::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--color-secondary), transparent);
  background-size: 200% 100%;
  animation: flowLine 1.8s infinite linear;
}

@keyframes flowLine {
  0% {
    background-position: 200% 0;
  }

  100% {
    background-position: -200% 0;
  }
}

/* Investment Section Styling */
.investment-section {
  padding: 100px 0;
  position: relative;
  background: #80afc9;
}

.invest-card-new {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(17, 70, 168, 0.08);
  box-shadow: 0 20px 40px rgba(9, 21, 40, 0.05);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.invest-card-new:hover {
  transform: translateY(-6px);
  box-shadow: 0 30px 60px rgba(9, 21, 40, 0.12);
}

.invest-img-col {
  min-height: 320px;
}

.invest-card-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.invest-card-new:hover .invest-card-img {
  transform: scale(1.04);
}

.invest-badge {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.enterprise-badge {
  background-color: rgba(17, 70, 168, 0.1);
  color: var(--color-primary);
}

.residential-badge {
  background-color: rgba(22, 163, 74, 0.1);
  color: var(--color-success);
}

.invest-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--color-text-dark);
  margin-bottom: 12px;
}

.invest-subtitle {
  color: var(--color-text-muted);
}

.text-emerald {
  color: #059669 !important;
}

/* Custom aligned investment buttons */
.invest-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 10px 16px;
  border-radius: 8px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  width: 100%;
  min-height: 48px;
  text-align: center;
}

.invest-btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border: 1px solid var(--color-primary);
}

.invest-btn-primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(17, 70, 168, 0.2);
}

.invest-btn-success {
  background-color: #059669;
  color: #FFFFFF;
  border: 1px solid #059669;
}

.invest-btn-success:hover {
  background-color: #047857;
  border-color: #047857;
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(5, 150, 105, 0.25);
}

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

.invest-btn-outline:hover {
  background-color: var(--color-primary);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(17, 70, 168, 0.2);
}

@media (max-width: 767.98px) {
  .invest-img-col {
    min-height: 240px;
  }

  .invest-card-img {
    position: relative;
    height: 240px;
  }
}

/* ==========================================================================
   Section 2: Vấn đề & Giải pháp (Pain Points)
   ========================================================================== */
.pain-points-section {
  padding: 100px 0;
  background-color: var(--color-bg-light);
  position: relative;
}

.pain-point-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(17, 70, 168, 0.08);
  box-shadow: var(--shadow-premium);
  padding: 40px;
  height: 100%;
  transition: var(--transition-smooth);
}

.pain-point-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-premium-hover);
}

.pain-point-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-lg);
  color: var(--color-text-dark);
  margin-bottom: 25px;
  display: flex;
  align-items: center;
}

.pain-point-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 25px;
}

.pain-point-list li {
  position: relative;
  padding-left: 32px;
  margin-bottom: 16px;
  font-size: var(--fs-base);
  color: var(--color-text-muted);
  line-height: 1.5;
}

.pain-point-list li i {
  position: absolute;
  left: 0;
  top: 4px;
  font-size: 1.1rem;
}

.solution-box {
  background-color: var(--color-primary-light);
  border-left: 4px solid var(--color-primary-dark);
  border-radius: var(--radius-md);
  padding: 24px;
}

.solution-box-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-base);
  color: var(--color-primary-dark);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
}

.solution-box-text {
  font-size: var(--fs-sm);
  color: var(--color-text-dark);
  line-height: 1.5;
  margin-bottom: 0;
}

/* ==========================================================================
   Section 3: Dịch vụ cốt lõi (Core Services)
   ========================================================================== */
.core-services-section {
  padding: 100px 0;
  background-color: #FFFFFF;
  position: relative;
}

.service-column-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(17, 70, 168, 0.08);
  box-shadow: var(--shadow-premium);
  padding: 40px 32px;
  height: 100%;
  transition: var(--transition-smooth);
  position: relative;
}

.service-column-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-premium-hover);
  border-color: rgba(17, 70, 168, 0.15);
}

.service-icon-box {
  width: 64px;
  height: 64px;
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 1.75rem;
  transition: var(--transition-fast);
}

.service-icon-box i,
.sector-icon-box i,
.vision-icon-box i,
.step-icon-box i {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  line-height: 1;
  vertical-align: middle;
}

.service-column-card:hover .service-icon-box {
  background-color: var(--color-secondary);
  color: #FFFFFF;
  box-shadow: 0 8px 20px rgba(244, 163, 0, 0.25);
}

.service-card-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-lg);
  color: var(--color-text-dark);
  margin-bottom: 16px;
}

.service-bullet-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
}

.service-bullet-list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 12px;
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: 1.4;
}

.service-bullet-list li:last-child {
  margin-bottom: 0;
}

.service-bullet-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-secondary);
}

/* ==========================================================================
   Section 4: Danh mục lĩnh vực năng lượng (Energy Sectors)
   ========================================================================== */
.energy-sectors-section {
  padding: 100px 0;
  background: linear-gradient(180deg, #FFFFFF 0%, var(--color-primary-light) 100%);
  position: relative;
}

.energy-sectors-section .section-title {
  color: var(--color-primary-dark) !important;
}

.energy-sectors-section .lead-text {
  color: var(--color-text-muted) !important;
}

/* Custom Tabs styling */
.sector-tabs-container {
  display: flex;
  justify-content: center;
  overflow-x: auto;
  padding-bottom: 10px;
  -webkit-overflow-scrolling: touch;
}

.sector-tabs-container::-webkit-scrollbar {
  height: 4px;
}

.sector-tabs-container::-webkit-scrollbar-thumb {
  background-color: var(--color-primary-light);
  border-radius: 4px;
}

.sector-tabs-wrapper {
  display: flex;
  gap: 12px;
  background-color: rgba(9, 44, 116, 0.04);
  padding: 6px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(9, 44, 116, 0.08);
}

.sector-tab-btn {
  background: transparent;
  border: none;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  padding: 10px 24px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
}

.sector-tab-btn i {
  font-size: 1.1rem;
}

.sector-tab-btn:hover {
  color: var(--color-primary-dark);
}

.sector-tab-btn.active {
  background-color: var(--color-primary-dark);
  color: #FFFFFF;
  box-shadow: 0 4px 15px rgba(9, 44, 116, 0.2);
}

/* Energy Sectors Swiper styling */
.energy-swiper-container {
  position: relative;
}

.energy-sectors-swiper {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-premium);
  overflow: hidden;
  height: 520px;
}

.sector-slide {
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  height: 100%;
}

/* Glassmorphism card overlay */
.sector-slide-card {
  position: relative;
  z-index: 3;
  background: rgba(9, 21, 40, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 35px;
  margin: 30px;
  max-width: 550px;
  color: #FFFFFF;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
  transform: translateY(20px);
  opacity: 0;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s ease;
}

/* Active slide animation */
.swiper-slide-active .sector-slide-card {
  transform: translateY(0);
  opacity: 1;
}

.sector-slide-badge {
  display: inline-block;
  background-color: var(--color-secondary);
  color: var(--color-primary-dark);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 15px;
}

.sector-slide-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--fs-2xl);
  color: #FFFFFF;
  margin-bottom: 12px;
}

.sector-slide-desc {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
  margin-bottom: 25px;
}

.sector-slide-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.sector-slide-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.9);
}

.sector-slide-list li i {
  color: var(--color-secondary);
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* Navigation controls overlay */
.energy-swiper-button-prev,
.energy-swiper-button-next {
  width: 50px !important;
  height: 50px !important;
  background-color: rgba(255, 255, 255, 0.9);
  color: var(--color-primary-dark) !important;
  border-radius: 50%;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: var(--transition-fast) !important;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
}

.energy-swiper-button-prev {
  left: 20px;
}

.energy-swiper-button-next {
  right: 20px;
}

.energy-swiper-button-prev::after,
.energy-swiper-button-next::after {
  font-size: 1.2rem !important;
  font-weight: 900 !important;
}

.energy-swiper-button-prev:hover,
.energy-swiper-button-next:hover {
  background-color: var(--color-primary-dark);
  color: #FFFFFF !important;
}

/* Pagination bullets */
.energy-swiper-pagination {
  bottom: 20px !important;
}

.energy-swiper-pagination .swiper-pagination-bullet {
  background-color: rgba(255, 255, 255, 0.5) !important;
  opacity: 1 !important;
  width: 10px !important;
  height: 10px !important;
}

.energy-swiper-pagination .swiper-pagination-bullet-active {
  background-color: var(--color-secondary) !important;
  width: 24px !important;
  border-radius: var(--radius-pill) !important;
}

@media (max-width: 768px) {
  .energy-sectors-swiper {
    height: 480px;
  }
  .sector-slide-card {
    margin: 15px;
    padding: 20px;
  }
  .sector-slide-title {
    font-size: var(--fs-xl);
  }
  .energy-swiper-button-prev,
  .energy-swiper-button-next {
    display: none !important;
  }
}

/* Why Us Grid & Light premium styling */
.why-us-section {
  background: linear-gradient(180deg, var(--color-primary-light) 0%, #F4F8FC 100%);
  color: var(--color-text-dark);
  position: relative;
  overflow: hidden;
  padding: 100px 0 !important;
}

.why-us-section .lead-text {
  color: var(--color-text-muted) !important;
}

.why-us-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(9, 44, 116, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.5;
  pointer-events: none;
  z-index: 1;
}

.why-us-section .container {
  position: relative;
  z-index: 2;
}

.why-us-card {
  background: #FFFFFF;
  border: 1px solid rgba(9, 44, 116, 0.08);
  border-radius: 16px !important;
  padding: 40px 32px;
  height: 100%;
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 10px 30px rgba(9, 44, 116, 0.04);
}

.why-us-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-secondary) 0%, #FFE57F 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.why-us-card:hover::before {
  opacity: 1;
}

.why-us-card:hover {
  transform: translateY(-8px);
  background: #FFFFFF;
  border-color: rgba(9, 44, 116, 0.15);
  box-shadow: 0 20px 40px rgba(9, 44, 116, 0.08);
}

.why-us-card h3 {
  color: var(--color-primary-dark) !important;
  transition: color 0.3s ease;
}

.why-us-card p {
  color: var(--color-text-muted) !important;
  transition: color 0.3s ease;
  line-height: 1.6;
}

.why-us-card:hover h3 {
  color: var(--color-primary) !important;
}

.why-us-card:hover p {
  color: var(--color-text-dark) !important;
}

.why-us-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(9, 44, 116, 0.05);
  border: 1px solid rgba(9, 44, 116, 0.08);
  color: var(--color-primary-dark);
  margin-bottom: 24px;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.why-us-icon i {
  font-size: 1.6rem !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.why-us-card:hover .why-us-icon {
  background: var(--color-primary-dark);
  color: #FFFFFF !important;
  transform: scale(1.08) rotate(5deg);
  box-shadow: 0 8px 20px rgba(9, 44, 116, 0.2);
  border-color: var(--color-primary-dark);
}

/* Partner Logo Slider (Infinite Loop) */
.partner-section {
  background-color: #F8FAFC;
  border-top: 1px solid rgba(17, 70, 168, 0.06);
  border-bottom: 1px solid rgba(17, 70, 168, 0.06);
  padding: 100px 0px;
}

.logo-marquee-container {
  overflow: hidden;
  width: 100%;
  position: relative;
  white-space: nowrap;
  padding: 30px 0;
  /* Increased to prevent hover shadow clipping */
  margin: -20px 0;
}

.logo-marquee-container::before,
.logo-marquee-container::after {
  content: '';
  position: absolute;
  top: 0;
  width: 120px;
  height: 100%;
  z-index: 3;
  pointer-events: none;
}

.logo-marquee-container::before {
  left: 0;
  background: linear-gradient(to right, #F8FAFC 0%, rgba(248, 250, 252, 0) 100%);
}

.logo-marquee-container::after {
  right: 0;
  background: linear-gradient(to left, #F8FAFC 0%, rgba(248, 250, 252, 0) 100%);
}

.logo-marquee-track {
  display: inline-flex;
  align-items: center;
  animation: logoScroll 25s linear infinite;
  width: max-content;
}

.logo-marquee-item {
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-marquee-item img {
  height: 38px;
  opacity: 0.5;
  filter: grayscale(1);
  transition: var(--transition-fast);
}

.logo-marquee-item img:hover {
  opacity: 1;
  filter: none;
}

/* Text-based partner brand cards */
.partner-brand-card {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 20px 42px !important;
  border: 1px solid rgba(17, 70, 168, 0.1);
  border-radius: 16px !important;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 8px 30px rgba(9, 21, 40, 0.04), inset 0 1px 0 #FFFFFF;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.45rem !important;
  letter-spacing: -0.02em;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
  min-width: 170px;
}

.partner-brand-card:hover {
  border-color: rgba(17, 70, 168, 0.25);
  background-color: #FFFFFF;
  transform: translateY(-6px) scale(1.05);
  box-shadow: 0 16px 36px rgba(9, 21, 40, 0.12);
}

/* Custom CSS override for the inline small suffix text */
.partner-brand-card span[style*="font-size:0.75rem"] {
  font-size: 1.05rem !important;
  color: var(--color-text-muted) !important;
  margin-left: 4px;
}

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

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

/* Projects Section (Masonry Grid & Filters) */
.project-filters {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 50px;
}

.filter-btn {
  background: #FFFFFF;
  border: 1.5px solid rgba(17, 70, 168, 0.1);
  color: var(--color-text-muted);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 10px 22px;
  border-radius: 30px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 10px rgba(9, 21, 40, 0.03);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.filter-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(17, 70, 168, 0.08);
}

.filter-btn.active {
  color: #FFFFFF;
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 6px 15px rgba(17, 70, 168, 0.2);
}

.project-grid-item {
  margin-bottom: 24px;
  transition: var(--transition-slow);
}

.project-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: none;
  border: 1px solid rgba(17, 70, 168, 0.06);
  height: 380px;
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(9, 21, 40, 0.95) 15%, rgba(17, 70, 168, 0.4) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 30px;
  opacity: 0;
  transition: var(--transition-smooth);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

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

.project-meta {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.project-title {
  color: #FFFFFF;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.project-location {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.85rem;
}

.project-capacity {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}



/* Call to Action Section & Form Input Refinement */
.cta-section {
  background:
    linear-gradient(160deg, rgba(9, 21, 40, 0.92) 0%, rgba(9, 44, 116, 0.85) 55%, rgba(128, 175, 201, 0.75) 100%),
    url('assets/solar_cta_bg.png') center 60% / cover no-repeat;
  color: #FFFFFF;
  padding: 100px 0;
  overflow: hidden;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.6;
  pointer-events: none;
}

.cta-title {
  font-size: var(--fs-3xl);
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 20px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.cta-card {
  background-color: #FFFFFF;
  border-radius: var(--radius-lg);
  border-top: 4px solid var(--color-primary);
  max-width: 600px;
}

@media (max-width: 768px) {
  .cta-title {
    font-size: var(--fs-xl);
  }
}

.form-control {
  border: 1px solid rgba(17, 70, 168, 0.12);
  padding: 12px 16px;
  color: var(--color-text-dark);
  background-color: #F8FAFC;
  border-radius: var(--radius-sm);
  font-size: 0.925rem;
  transition: all 0.25s ease;
}

.form-control:focus {
  background-color: #FFFFFF;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(17, 70, 168, 0.08);
}

/* Footer Section */
.site-footer {
  background-color: var(--color-dark-section);
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--fs-base);
  padding-top: 80px;
  padding-bottom: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-title {
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 12px;
}

.footer-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background-color: var(--color-secondary);
}

.footer-links-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
}

.footer-links-list li {
  margin-bottom: 12px;
}

.footer-links-list a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer-links-list a:hover {
  color: var(--color-secondary);
  padding-left: 6px;
}

.footer-contact-info {
  list-style: none;
  padding-left: 0;
}

.footer-contact-info li {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}

.footer-contact-info i {
  color: var(--color-secondary);
  font-size: var(--fs-md);
  margin-top: 4px;
}

.map-wrapper {
  overflow: hidden;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
  height: 200px;
}

.footer-bottom {
  margin-top: 60px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.45);
}

/* Footer Quick Contact (col-1 inline contact list) */
.footer-quick-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-quick-contact-link {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
  font-size: var(--fs-sm);
  line-height: 1.5;
  transition: color 0.25s ease;
}

a.footer-quick-contact-link:hover {
  color: #FFFFFF;
}

a.footer-quick-contact-link:hover .fqc-icon {
  background: var(--color-secondary);
  color: var(--color-primary-dark);
  border-color: var(--color-secondary);
}

.fqc-icon {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--color-secondary);
  font-size: 0.75rem;
  transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Footer Social Icons Hover Effects */
.footer-social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.6) !important;
  font-size: 1rem;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
}

.footer-social-link:hover {
  transform: translateY(-4px) scale(1.1);
  color: #FFFFFF !important;
  border-color: transparent;
}

.footer-social-link.fb:hover {
  background: #1877F2;
  box-shadow: 0 8px 20px rgba(24, 119, 242, 0.45);
}

.footer-social-link.yt:hover {
  background: #FF0000;
  box-shadow: 0 8px 20px rgba(255, 0, 0, 0.40);
}

.footer-social-link.li:hover {
  background: #0A66C2;
  box-shadow: 0 8px 20px rgba(10, 102, 194, 0.45);
}

/* Floating Contact Buttons */
.floating-contacts {
  position: fixed;
  right: 20px;
  bottom: 100px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 9999;
}

.floating-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
  font-size: 1.25rem;
  line-height: 1;
  color: #FFFFFF !important;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.28);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  border: 2px solid rgba(255, 255, 255, 0.22);
}

.floating-btn>i,
.floating-btn>svg {
  display: block;
  flex-shrink: 0;
  line-height: 1;
}

.floating-btn>svg {
  width: 26px;
  height: 26px;
}

.floating-btn:hover {
  transform: translateY(-5px) scale(1.1);
  color: #FFFFFF !important;
}

.floating-btn-tooltip {
  position: absolute;
  right: calc(100% + 14px);
  top: 50%;
  transform: translateY(-50%);
  background: rgba(8, 18, 48, 0.9);
  color: #fff;
  font-size: var(--fs-xs);
  font-weight: 600;
  white-space: nowrap;
  padding: 5px 11px;
  border-radius: 6px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.22s ease;
  letter-spacing: 0.03em;
  backdrop-filter: blur(4px);
}

.floating-btn:hover .floating-btn-tooltip {
  opacity: 1;
}

.floating-btn.phone {
  background: linear-gradient(145deg, #1146a8, #0a2d72);
  animation: phonePulse 2.2s infinite;
}

.floating-btn.phone:hover {
  box-shadow: 0 10px 28px rgba(17, 70, 168, 0.55);
}

.floating-btn.zalo {
  background: linear-gradient(145deg, #0068FF, #004fcf);
  width: 52px;
  height: 52px;
  border-radius: 26px;
  padding: 0 16px;
}

.zalo-wordmark {
  height: 20px;
  width: auto;
  display: block;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.floating-btn.zalo:hover {
  box-shadow: 0 10px 28px rgba(0, 104, 255, 0.55);
}

.floating-btn.messenger {
  background: linear-gradient(145deg, #0084FF, #0068e0);
}

.floating-btn.messenger:hover {
  box-shadow: 0 10px 28px rgba(0, 132, 255, 0.55);
}

@keyframes phonePulse {

  0%,
  100% {
    box-shadow: 0 4px 16px rgba(17, 70, 168, 0.4);
  }

  50% {
    box-shadow: 0 4px 28px rgba(17, 70, 168, 0.75), 0 0 0 10px rgba(17, 70, 168, 0.1);
  }
}

@media (max-width: 576px) {
  .floating-contacts {
    right: 14px;
    bottom: 80px;
    gap: 10px;
  }

  .floating-btn {
    width: 46px;
    height: 46px;
    font-size: 1.1rem;
  }

  .floating-btn>svg {
    width: 22px;
    height: 22px;
  }
}

/* Animations Helpers (AOS Custom Curves) */
[data-aos] {
  pointer-events: none;
}

[data-aos].aos-animate {
  pointer-events: auto;
}

/* Premium Header Elements Styles */
.search-input:focus {
  width: 180px !important;
  border-color: var(--color-primary) !important;
  box-shadow: 0 0 0 3px rgba(17, 70, 168, 0.08) !important;
  outline: none;
}

.hotline-link:hover {
  color: var(--color-primary) !important;
}

.hotline-link:hover i {
  animation: phone-vibe 0.3s ease infinite;
}

.dropdown-item.active {
  background: #1146a9;
}

.dropdown-item:hover {
  background: #1146a9;
  color: white;
}

@keyframes phone-vibe {

  0%,
  100% {
    transform: rotate(0deg);
  }

  25% {
    transform: rotate(15deg);
  }

  75% {
    transform: rotate(-15deg);
  }
}

@media (min-width: 992px) {

  /* Multi-level Hover Dropdown for B2B Experience */
  .navbar-nav .dropdown:hover>.dropdown-menu {
    display: block;
    opacity: 1;
    visibility: visible;
  }

  .navbar-nav .dropdown-menu {
    display: block;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.15s ease, visibility 0.15s ease;
    margin-top: 0;
    border: none !important;
    border-radius: 4px !important;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08) !important;
    min-width: 260px;
    padding: 0 !important;
    background: #FFFFFF;
  }

  .navbar-nav .dropdown-menu::before {
    content: '';
    position: absolute;
    top: -15px;
    left: 0;
    right: 0;
    height: 15px;
    background: transparent;
  }

  .navbar-nav .dropdown-item {
    transition: background-color 0.15s ease, color 0.15s ease;
    font-size: 0.885rem;
    padding: 10px 16px;
    border-radius: 0;
    color: #334155;
    font-weight: 400;
  }

  .navbar-nav .dropdown-menu>li:first-child>.dropdown-item {
    border-top-left-radius: 4px;
    border-top-right-radius: 4px;
  }

  .navbar-nav .dropdown-menu>li:last-child>.dropdown-item {
    border-bottom-left-radius: 4px;
    border-bottom-right-radius: 4px;
  }

  .navbar-nav .dropdown-item:hover {
    background-color: #F1F5F9;
    color: var(--color-primary);
  }

  /* Multi-level Hover Submenus */
  .dropdown-submenu {
    position: relative;
  }

  .dropdown-submenu>.dropdown-submenu-menu {
    top: 0;
    left: calc(100% + 2px);
    margin-top: 0;
    margin-left: 0;
    display: block;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.15s ease, visibility 0.15s ease;
    min-width: 320px;
    background: #FFFFFF;
    border: none !important;
    border-radius: 4px !important;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08) !important;
    padding: 0 !important;
  }

  /* Invisible bridge to prevent losing hover state across the gap */
  .dropdown-submenu-menu::before {
    content: '';
    position: absolute;
    top: -10px;
    bottom: -10px;
    left: -10px;
    width: 15px;
    background: transparent;
  }

  .dropdown-submenu:hover>.dropdown-submenu-menu {
    opacity: 1;
    visibility: visible;
  }

  .dropdown-submenu>.dropdown-toggle::after {
    display: none !important;
  }

  .dropdown-submenu:hover>.dropdown-item {
    background-color: #F1F5F9 !important;
    color: var(--color-primary) !important;
  }

  .dropdown-submenu .dropdown-submenu-icon {
    font-size: 0.75rem;
    color: #94A3B8;
  }

  .dropdown-submenu:hover .dropdown-submenu-icon {
    color: var(--color-primary) !important;
  }
}

/* Expandable Slide-down Search Bar Styles */
.header-search-bar {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background-color: #FFFFFF;
  border-bottom: 1px solid rgba(17, 70, 168, 0.1);
  box-shadow: 0 15px 30px rgba(9, 21, 40, 0.08);
  padding: 18px 0;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-15px);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.header-search-bar.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.search-input-expanded {
  border: 1px solid rgba(17, 70, 168, 0.15);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  font-size: 0.95rem;
  width: 100%;
  transition: var(--transition-fast);
}

.search-input-expanded:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(17, 70, 168, 0.08);
  outline: none;
}

.search-toggle-btn:hover {
  color: var(--color-primary) !important;
  transform: scale(1.1);
}

/* ==========================================================================
   ABOUT PAGE STYLES (Giới thiệu)
   ========================================================================== */

/* 1. About Hero Banner */
.about-hero {
  position: relative;
  height: 480px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.about-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(9, 21, 40, 0.72) 0%, rgba(17, 70, 168, 0.58) 100%);
  z-index: 1;
}

.about-hero-content {
  position: relative;
  z-index: 2;
}

.about-hero h1 {
  color: #FFFFFF !important;
  text-shadow: 0 4px 18px rgba(9, 21, 40, 0.5);
}

.about-hero p,
.about-hero .lead-text {
  color: rgba(255, 255, 255, 0.95) !important;
  text-shadow: 0 2px 10px rgba(9, 21, 40, 0.4);
}

/* Global Section Spacing & Background alternating */
.section-padding {
  padding: 85px 0;
}

.bg-light-section {
  background-color: #F8FAFC;
  border-top: 1px solid rgba(17, 70, 168, 0.04);
  border-bottom: 1px solid rgba(17, 70, 168, 0.04);
}

@media (max-width: 768px) {
  .section-padding {
    padding: 55px 0;
  }
}

/* 2. Vision Mission Cards */
.vision-card {
  background: #FFFFFF;
  border: 1px solid rgba(17, 70, 168, 0.08);
  border-radius: var(--radius-md);
  padding: 40px 30px;
  height: 100%;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 10px 30px rgba(9, 21, 40, 0.03);
}

.vision-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(9, 21, 40, 0.08);
  border-color: var(--color-primary-light);
}

.vision-card.active {
  background: linear-gradient(135deg, #80afc9 0%, var(--color-primary) 100%);
  color: #FFFFFF;
  border-color: var(--color-primary);
}

.vision-card.active .vision-title {
  color: #FFFFFF;
}

.vision-card.active .vision-text {
  color: rgba(255, 255, 255, 0.8);
}

.vision-card.active .vision-icon-box {
  background: var(--color-secondary);
  color: var(--color-primary-dark);
}

.vision-icon-box {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-sm);
  background: rgba(17, 70, 168, 0.06);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 25px;
  transition: var(--transition-normal);
}

.vision-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--color-text-dark);
  margin-bottom: 15px;
}

.vision-text {
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: #555555;
  margin-bottom: 0;
}

/* 3. History Timeline (Horizontal Swiper Timeline) */
.timeline-swiper-wrapper {
  max-width: 1100px;
  margin: 0 auto;
}

.timeline-horizontal-line {
  position: absolute;
  top: 10%;
  /* Align with year badge center */
  left: 60px;
  right: 60px;
  height: 2px;
  background: rgba(17, 70, 168, 0.12);
  z-index: 1;
}

.timeline-swiper {
  position: relative;
  z-index: 2;
  overflow: hidden;
  padding: 10px 0;
}

.timeline-slide-content {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.timeline-year-badge {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 4px solid #FFFFFF;
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 5px 15px rgba(17, 70, 168, 0.15);
  margin-bottom: 25px;
  transition: var(--transition-fast);
  position: relative;
  z-index: 3;
}

.swiper-slide-active .timeline-year-badge,
.timeline-slide-content:hover .timeline-year-badge {
  background: var(--color-secondary);
  color: var(--color-primary-dark);
  box-shadow: 0 5px 18px rgba(244, 163, 0, 0.35);
  transform: scale(1.08);
}

.timeline-slide-card {
  background: #FFFFFF;
  border: 1px solid rgba(17, 70, 168, 0.08);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: 0 10px 30px rgba(9, 21, 40, 0.02);
  transition: var(--transition-smooth);
  width: 92%;
  margin: 0 auto;
  text-align: left;
}

.timeline-slide-content:hover .timeline-slide-card {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(9, 21, 40, 0.06);
  border-color: var(--color-primary-light);
}

.timeline-card-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-text-dark);
  margin-bottom: 8px;
}

.timeline-card-desc {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 15px;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 4.8rem;
  /* 0.75rem * 1.6 * 4 = 4.8rem */
}

.timeline-card-img-wrapper {
  border-radius: var(--radius-sm);
  overflow: hidden;
  height: 140px;
  width: 100%;
}

.timeline-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.timeline-slide-content:hover .timeline-card-img {
  transform: scale(1.04);
}

/* Timeline Custom Nav Arrows */
.timeline-swiper-button-prev,
.timeline-swiper-button-next {
  width: 40px;
  height: 40px;
  background: #FFFFFF;
  border: 1px solid rgba(17, 70, 168, 0.1);
  border-radius: 50%;
  color: var(--color-primary) !important;
  box-shadow: 0 4px 12px rgba(9, 21, 40, 0.04);
  transition: var(--transition-fast);
  z-index: 10;
}

.timeline-swiper-button-prev:after,
.timeline-swiper-button-next:after {
  font-size: 0.9rem !important;
  font-weight: 800;
}

.timeline-swiper-button-prev:hover,
.timeline-swiper-button-next:hover {
  background: var(--color-primary);
  color: #FFFFFF !important;
  border-color: var(--color-primary);
  box-shadow: 0 6px 16px rgba(17, 70, 168, 0.2);
}

.timeline-swiper-button-prev {
  left: -20px;
}

.timeline-swiper-button-next {
  right: -20px;
}

.timeline-swiper-pagination {
  bottom: -15px !important;
}

.timeline-swiper-pagination .swiper-pagination-bullet-active {
  background: var(--color-primary) !important;
  width: 20px;
  border-radius: 4px;
}

/* 4. Org Chart (Sơ đồ tổ chức) */
.org-tree-wrapper {
  max-width: 1000px;
  margin: 0 auto;
}

.org-row {
  display: flex;
  justify-content: center;
  width: 100%;
}

.org-col {
  padding: 0 10px;
}

.org-node {
  background: #FFFFFF;
  border: 1px solid rgba(17, 70, 168, 0.08);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  box-shadow: 0 8px 24px rgba(9, 21, 40, 0.03);
  display: inline-block;
  min-width: 190px;
  max-width: 220px;
  width: 100%;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.org-node:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 10px 25px rgba(9, 21, 40, 0.06);
  border-color: var(--color-primary-light);
}

.org-node h5 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--color-text-dark);
  margin-bottom: 0;
}

.node-subtitle {
  display: none;
}

.org-icon-wrapper {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(17, 70, 168, 0.05);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  margin: 0 auto 10px auto;
  transition: all 0.3s ease;
}

.org-node:hover .org-icon-wrapper {
  background: var(--color-primary);
  color: #FFFFFF;
  transform: rotate(5deg) scale(1.05);
}

.org-node.level-1 {
  border-top: 4px solid var(--color-primary);
  background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
}

.org-node.level-2 {
  border-top: 4px solid var(--color-primary-light);
}

.org-node.level-2.active {
  border-top-color: var(--color-secondary);
  border-left-color: rgba(244, 163, 0, 0.2);
  border-right-color: rgba(244, 163, 0, 0.2);
  border-bottom-color: rgba(244, 163, 0, 0.2);
  box-shadow: 0 10px 25px rgba(244, 163, 0, 0.1);
}

.org-node.level-2.active .org-icon-wrapper {
  background: rgba(244, 163, 0, 0.15);
  color: var(--color-secondary);
}

.org-node.level-2.active:hover .org-icon-wrapper {
  background: var(--color-secondary);
  color: var(--color-primary-dark);
}

.bg-gradient-blue {
  background: #FFFFFF;
}

.org-connector-vertical {
  width: 2px;
  height: 35px;
  background: linear-gradient(to bottom, var(--color-primary), rgba(17, 70, 168, 0.15));
  margin: 0 auto;
}

.level-2-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* 5. Team Member Cards */
.team-member-card {
  background: #FFFFFF;
  border: 1px solid rgba(17, 70, 168, 0.08);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(9, 21, 40, 0.02);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  height: 100%;
}

.team-member-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 15px 35px rgba(9, 21, 40, 0.08);
  border-color: var(--color-primary-light);
}

.member-img-box {
  position: relative;
  overflow: hidden;
  background: #F8FAFC;
  height: 100%;
  min-height: 250px;
}

.member-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

/* Team Swiper Styles */
.team-swiper .team-member-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.team-swiper .member-img-box {
  height: 280px;
  min-height: auto;
  flex-shrink: 0;
  width: 100%;
}

.team-swiper .member-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-swiper-pagination .swiper-pagination-bullet-active {
  background: var(--color-primary) !important;
  width: 24px !important;
  border-radius: 4px !important;
}

.member-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text-dark);
  margin-bottom: 4px;
}

.member-title {
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--color-primary);
}

.member-bio {
  line-height: 1.6;
}

.member-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.cert-tag {
  background: rgba(17, 70, 168, 0.05);
  color: var(--color-primary-dark);
  border: 1px solid rgba(17, 70, 168, 0.08);
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  font-size: 0.7rem;
  font-weight: 600;
}

/* 6. Gallery Section & Filters */
.btn-gallery-filter {
  background: #FFFFFF;
  border: 1px solid rgba(17, 70, 168, 0.1);
  color: #555555;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 10px 22px;
  border-radius: 30px;
  cursor: pointer;
  transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-gallery-filter:hover,
.btn-gallery-filter.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #FFFFFF;
  box-shadow: 0 8px 20px rgba(17, 70, 168, 0.15);
}

.gallery-img-box {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(9, 21, 40, 0.02);
}

.gallery-img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-hover-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(9, 21, 40, 0.9) 0%, rgba(9, 21, 40, 0.3) 100%);
  opacity: 0;
  transition: opacity 0.35s ease;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 25px;
}

.gallery-img-box:hover .gallery-hover-overlay {
  opacity: 1;
}

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

.gallery-tag {
  background: var(--color-secondary);
  color: var(--color-primary-dark);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 2px;
  align-self: flex-start;
  margin-bottom: 10px;
  letter-spacing: 0.05em;
}

.gallery-img-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 5px;
}

.gallery-img-desc {
  opacity: 0.75;
}

.gallery-zoom-icon {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-size: 1.1rem;
  transition: all 0.3s ease;
}

.gallery-img-box:hover .gallery-zoom-icon {
  background: var(--color-secondary);
  color: var(--color-primary-dark);
  transform: scale(1.1);
}

/* Responsive Styles for About Page */
@media (max-width: 991px) {
  .about-hero {
    height: 380px;
  }

  .timeline-horizontal-line {
    left: 40px;
    right: 40px;
  }

  .level-2-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }
}

@media (max-width: 575px) {
  .about-hero {
    height: 320px;
  }

  .timeline-horizontal-line {
    display: none;
  }

  .level-2-row {
    grid-template-columns: 1fr;
  }

  .org-node {
    min-width: 100%;
  }
}

/* ─── Solution Divider ──────────────────────────────────────── */
.solution-divider {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(17, 70, 168, 0.12), transparent);
  margin: 60px 0;
}



/* ─── Quote / Contact Modal ─────────────────────────────────── */
.quote-modal-card {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  width: 100%;
  max-width: 520px;
  overflow: hidden;
  box-shadow: 0 30px 70px rgba(9, 21, 40, 0.2);
  transform: translateY(20px) scale(0.97);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.35s ease;
  opacity: 0;
  margin: 20px;
}

.quote-modal-overlay.active .quote-modal-card {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.quote-modal-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #FFFFFF;
  padding: 28px 32px 24px;
  position: relative;
}

.quote-modal-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.35rem;
  color: #FFFFFF;
  margin-bottom: 6px;
}

.quote-modal-close-btn {
  position: absolute;
  top: 16px;
  right: 20px;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  color: #FFFFFF;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  padding: 0;
}

.quote-modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: rotate(90deg);
}

.quote-modal-body {
  padding: 28px 32px 32px;
}

/* Premium Form Fields */
.form-group-premium {
  position: relative;
  margin-bottom: 18px;
}

.form-control-premium {
  width: 100%;
  padding: 13px 16px 13px 44px;
  border: 1.5px solid rgba(17, 70, 168, 0.12);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-text-dark);
  background: #F8FAFC;
  transition: var(--transition-fast);
  resize: none;
}

.form-control-premium:focus {
  outline: none;
  border-color: var(--color-primary);
  background: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(17, 70, 168, 0.08);
}

.form-control-premium::placeholder {
  color: #94A3B8;
  font-size: 0.88rem;
}

.form-group-premium .form-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-primary);
  font-size: 0.9rem;
  pointer-events: none;
}

.form-group-premium textarea+.form-icon {
  top: 18px;
  transform: none;
}

/* Submit Button */
.btn-submit-premium {
  background: linear-gradient(135deg, #80afc9 0%, #80afc9 100%);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.btn-submit-premium::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.btn-submit-premium:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(17, 70, 168, 0.3);
}

.btn-submit-premium:hover::after {
  opacity: 1;
}

.btn-submit-premium i,
.btn-submit-premium span {
  position: relative;
  z-index: 1;
}

/* ─── Investment Page — CTA Banner ─────────────────────────── */
.invest-cta-section {
  background: url('assets/solar_cta_bg.png') no-repeat center center;
  background-size: cover;
  position: relative;
}

.invest-cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(9, 21, 40, 0.88) 0%, rgba(17, 70, 168, 0.75) 100%);
}

/* ─── Projects Page — Premium CTA Banner (shared style with invest-cta-section) ─ */
.project-cta-section {
  background: url('assets/solar_cta_bg.png') no-repeat center center;
  background-size: cover;
  position: relative;
}

.project-cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(9, 21, 40, 0.90) 0%, rgba(11, 46, 120, 0.80) 60%, rgba(17, 70, 168, 0.72) 100%);
}

/* ─── Project Filter — Count Badge ─────────────────────────────────────────── */
.project-filter-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(17, 70, 168, 0.08);
  border: 1px solid rgba(17, 70, 168, 0.12);
  color: var(--color-text-muted);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 50px;
  padding: 4px 14px;
  margin-bottom: 24px;
  transition: var(--transition-smooth);
}

.project-filter-count span {
  color: var(--color-primary);
  font-weight: 700;
}

/* ─── Project Grid — Empty State ─────────────────────────────────────────── */
.project-empty-state {
  display: none;
  text-align: center;
  padding: 60px 20px;
  width: 100%;
}

.project-empty-state i {
  font-size: 3rem;
  color: rgba(17, 70, 168, 0.2);
  margin-bottom: 16px;
}

/* ==========================================================================
   HOMEPAGE MOBILE & RESPONSIVE UX OPTIMIZATION (UI-UX PRO MAX)
   ========================================================================== */

/* 1. Mobile Navigation & Drawer — Full Page Right-to-Left (< 991.98px) */
@media (max-width: 991.98px) {

  /* Prevent Page Background Scrolling & Dual Scrollbars when Drawer is Open */
  html.mobile-menu-open,
  body.mobile-menu-open {
    overflow: hidden !important;
    height: 100vh !important;
    height: 100dvh !important;
    position: fixed !important;
    width: 100% !important;
    left: 0 !important;
    top: 0 !important;
  }

  /* Elevate Header Stacking Context when Menu is Open */
  body.mobile-menu-open .header-navigation {
    z-index: 9999999 !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  /* Hide Desktop Nav Utilities on Mobile */
  .header-desktop-utilities {
    display: none !important;
  }

  /* Hide Floating Contact Buttons when Mobile Menu is Open */
  body.mobile-menu-open .floating-contacts {
    display: none !important;
    opacity: 0 !important;
    pointer-events: none !important;
  }

  /* Full Screen Mobile Offcanvas Drawer - Smooth Opaque Slide Transition */
  .navbar-collapse {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    height: 100dvh !important;
    max-height: 100dvh !important;
    background-color: #FFFFFF !important;
    background: #FFFFFF !important;
    z-index: 9999999 !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: flex-start !important;
    padding: 16px 20px 32px 20px !important;
    transform: translateX(100%) !important;
    transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.32s ease !important;
    opacity: 1 !important;
    visibility: hidden !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
    margin-top: 0 !important;
    border: none !important;
    border-radius: 0 !important;
    will-change: transform;
  }

  .navbar-collapse.show {
    transform: translateX(0) !important;
    opacity: 1 !important;
    visibility: visible !important;
    height: 100vh !important;
    height: 100dvh !important;
    background-color: #FFFFFF !important;
    background: #FFFFFF !important;
  }

  .navbar-collapse.collapsing {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    height: 100dvh !important;
    background-color: #FFFFFF !important;
    background: #FFFFFF !important;
    z-index: 9999999 !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: flex-start !important;
    padding: 16px 20px 32px 20px !important;
    transform: translateX(100%) !important;
    transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1) !important;
    opacity: 1 !important;
    visibility: visible !important;
    overflow: hidden !important;
    margin-top: 0 !important;
  }

  /* Mobile Navbar Toggler (Hamburger in Header) */
  .navbar-toggler {
    z-index: 1070 !important;
    padding: 6px 10px !important;
    outline: none !important;
    box-shadow: none !important;
    border: none !important;
    background: transparent !important;
  }

  body.mobile-menu-open {
    overflow: hidden !important;
  }

  /* Mobile Drawer Top Header Bar */
  .mobile-drawer-header {
    width: 100%;
    padding-bottom: 12px !important;
    margin-bottom: 16px !important;
    border-bottom: 1px solid #E2E8F0 !important;
  }

  .btn-close-drawer {
    width: 40px !important;
    height: 40px !important;
    background: #F1F5F9 !important;
    border-radius: 50% !important;
    border: none !important;
    color: #1E293B !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    transition: background-color 0.2s ease, transform 0.2s ease !important;
  }

  .btn-close-drawer:active,
  .btn-close-drawer:hover {
    background: #E2E8F0 !important;
    transform: scale(0.95) !important;
  }

  /* Redesigned Search Bar in Mobile Drawer */
  .mobile-drawer-utilities {
    width: 100%;
    margin-bottom: 18px !important;
  }

  .mobile-search-form .input-group {
    background: #F8FAFC !important;
    border: 1px solid #E2E8F0 !important;
    border-radius: 14px !important;
    overflow: hidden !important;
    padding: 3px !important;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
  }

  .mobile-search-form .input-group:focus-within {
    border-color: var(--color-primary) !important;
    box-shadow: 0 0 0 3px rgba(17, 70, 168, 0.12) !important;
  }

  .mobile-search-form .form-control {
    font-size: 0.92rem !important;
    color: var(--color-text-dark) !important;
  }

  .mobile-search-form .btn-search-submit {
    background: linear-gradient(135deg, #80afc9 0%, #80afc9 100%) !important;
    color: #FFFFFF !important;
    border-radius: 10px !important;
    font-weight: 700 !important;
    font-size: 0.85rem !important;
    padding: 8px 18px !important;
  }

  /* Redesigned Language Switcher Pills */
  .mobile-lang-box {
    background: #F8FAFC !important;
    border: 1px solid #E2E8F0 !important;
    border-radius: 14px !important;
    padding: 6px 12px !important;
  }

  .mobile-lang-box .lang-pill-btn {
    border-radius: 8px !important;
    font-size: 0.8rem !important;
    font-weight: 700 !important;
    padding: 6px 12px !important;
    border: none !important;
    color: #64748B !important;
    background: transparent !important;
    transition: all 0.2s ease !important;
  }

  .mobile-lang-box .lang-pill-btn.active {
    background: #80afc9 !important;
    color: #FFFFFF !important;
    box-shadow: 0 2px 8px rgba(17, 70, 168, 0.25) !important;
  }

  /* Mobile Nav Links Typography & Spacing */
  .navbar-nav {
    width: 100% !important;
  }

  /* .navbar-nav .nav-item {
    margin-bottom: 4px !important;
  } */

  .navbar-nav .nav-link {
    font-size: 1.05rem !important;
    font-weight: 600 !important;
    color: #1E293B !important;
    padding: 12px 16px !important;
    border-radius: 12px !important;
    border-bottom: none !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    transition: all 0.2s ease !important;
  }

  .navbar-nav .nav-link:hover,
  .navbar-nav .nav-link:focus {
    background-color: #F8FAFC !important;
    color: var(--color-primary) !important;
  }

  .navbar-nav .nav-link.active {
    background-color: rgba(17, 70, 168, 0.08) !important;
    color: var(--color-primary) !important;
    font-weight: 700 !important;
    border-left: 4px solid var(--color-primary) !important;
  }

  /* Mobile Dropdown Sub-menu Accordion */
  .navbar-nav .dropdown-menu {
    display: none !important;
    opacity: 0 !important;
    visibility: hidden !important;
    height: 0 !important;
    overflow: hidden !important;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1) !important;
    background-color: #F8FAFC !important;
    border-radius: 12px !important;
    border: 1px solid #E2E8F0 !important;
    margin: 4px 0 8px 0 !important;
    padding: 8px 6px !important;
    box-shadow: none !important;
    position: static !important;
    transform: none !important;
  }

  .navbar-nav .dropdown.show .dropdown-menu,
  .navbar-nav .dropdown-menu.show {
    display: block !important;
    opacity: 1 !important;
    visibility: visible !important;
    height: auto !important;
  }

  .navbar-nav .dropdown-menu .dropdown-item {
    font-size: 0.95rem !important;
    font-weight: 500 !important;
    color: #475569 !important;
    padding: 10px 16px !important;
    border-radius: 8px !important;
    transition: all 0.2s ease !important;
  }

  .navbar-nav .dropdown-menu .dropdown-item:hover {
    background-color: #FFFFFF !important;
    color: var(--color-primary) !important;
  }

  .navbar-nav .dropdown-toggle .dropdown-icon {
    transition: transform 0.3s ease !important;
    font-size: 0.8rem !important;
    color: #64748B !important;
  }

  .navbar-nav .dropdown.show .dropdown-toggle .dropdown-icon {
    transform: rotate(180deg) !important;
    color: var(--color-primary) !important;
  }

  /* Mobile Dropdown Sub-menu Accordion Sub-levels */
  .dropdown-submenu>.dropdown-item {
    font-weight: 700 !important;
    color: var(--color-text-dark) !important;
    padding: 10px 14px !important;
    background: rgba(17, 70, 168, 0.04) !important;
    margin: 4px 0 !important;
    border-radius: 8px !important;
  }

  .dropdown-submenu .dropdown-submenu-icon {
    display: none !important;
  }

  .dropdown-submenu-menu {
    display: block !important;
    opacity: 1 !important;
    visibility: visible !important;
    height: auto !important;
    position: static !important;
    transform: none !important;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    padding-left: 12px !important;
    margin: 2px 0 6px 0 !important;
  }

  .dropdown-submenu-menu .dropdown-item {
    font-size: 0.88rem !important;
    padding: 6px 12px !important;
    color: #475569 !important;
    border-bottom: 1px dashed rgba(0, 0, 0, 0.05) !important;
  }

  .dropdown-submenu-menu .dropdown-item:hover {
    color: var(--color-primary) !important;
    background-color: #FFFFFF !important;
  }

  /* Mobile Drawer Bottom CTA Section */
  .mobile-drawer-footer {
    margin-top: auto !important;
    padding-top: 20px !important;
    border-top: 1px solid #E2E8F0 !important;
  }

  .mobile-drawer-footer .btn-mobile-call {
    background: #FFFFFF !important;
    border: 1.5px solid var(--color-primary) !important;
    color: var(--color-primary) !important;
    font-weight: 700 !important;
    border-radius: 12px !important;
    padding: 12px 18px !important;
    font-size: 0.95rem !important;
    box-shadow: 0 4px 12px rgba(17, 70, 168, 0.08) !important;
  }

  .mobile-drawer-footer .btn-mobile-quote {
    background: linear-gradient(135deg, #80afc9 0%, #80afc9 100%) !important;
    border: none !important;
    color: #FFFFFF !important;
    font-weight: 700 !important;
    border-radius: 12px !important;
    padding: 12px 18px !important;
    font-size: 0.95rem !important;
    box-shadow: 0 6px 18px rgba(17, 70, 168, 0.25) !important;
  }
}

/* 2. Global Section Spacing & Component Scale (< 767.98px) */
@media (max-width: 767.98px) {
  section {
    padding-top: 52px;
    padding-bottom: 52px;
  }

  .display-large {
    font-size: 1.85rem;
    line-height: 1.25;
  }

  .section-title {
    font-size: 1.65rem;
    line-height: 1.25;
  }

  .lead-text {
    font-size: 0.95rem;
    line-height: 1.65;
  }

  /* Hero Section */
  .hero-section {
    min-height: 580px;
    padding-top: 115px;
    padding-bottom: 70px;
  }

  .hero-checklist {
    font-size: 0.95rem !important;
    line-height: 1.7 !important;
  }

  .hero-btn-group {
    flex-direction: column;
    width: 100%;
  }

  .hero-btn-group .btn-premium {
    width: 100%;
    text-align: center;
  }

  /* Stats Section (2x2 Grid) */
  .stats-section {
    padding: 30px 0;
  }

  .stats-card-wrapper {
    padding: 24px 16px;
  }

  .stat-item {
    border-right: none !important;
    border-bottom: none !important;
    padding-bottom: 0 !important;
    margin-bottom: 0 !important;
  }

  .stat-number {
    font-size: 1.75rem;
  }

  .stat-label {
    font-size: 0.75rem;
    letter-spacing: 0.04em;
    margin-top: 4px;
  }

  /* Intro Section */
  .intro-image-wrapper {
    height: 250px !important;
  }

  .intro-highlight-item {
    font-size: 0.85rem;
  }

  .intro-highlight-item i {
    font-size: 1rem !important;
  }

  /* Solution Cards */
  .solution-card-content {
    padding: 20px 16px !important;
  }

  .solution-card-content h3 {
    min-height: auto !important;
    font-size: 1.2rem !important;
    margin-bottom: 8px !important;
  }

  .solution-card-content p {
    min-height: auto !important;
    font-size: 0.875rem !important;
    margin-bottom: 16px !important;
    line-height: 1.55 !important;
  }

  .solution-diagram-wrapper {
    padding: 10px 6px;
    margin-bottom: 16px !important;
  }

  .diagram-node {
    width: 32px;
    height: 32px;
    font-size: 0.85rem;
  }

  /* Investment Section */
  .investment-section {
    padding: 55px 0;
  }

  .invest-title {
    font-size: 1.3rem;
  }

  .invest-subtitle {
    font-size: 0.875rem !important;
    margin-bottom: 16px !important;
  }

  .invest-card-new .p-4,
  .invest-card-new .p-lg-5 {
    padding: 20px 16px !important;
  }

  .invest-btn {
    min-height: 42px;
    padding: 8px 12px;
    font-size: 0.75rem;
  }

  /* Projects Section & Mobile Touch Overlay */
  .project-filters {
    gap: 8px;
    margin-bottom: 30px;
  }

  .filter-btn {
    padding: 7px 16px;
    font-size: 0.82rem;
  }

  .project-card {
    height: 270px;
  }

  .project-overlay {
    opacity: 1 !important;
    background: linear-gradient(to top, rgba(9, 21, 40, 0.95) 25%, rgba(9, 21, 40, 0.35) 75%, transparent 100%);
    padding: 18px;
  }

  .project-title {
    font-size: 1.15rem;
  }

  .project-location {
    font-size: 0.8rem;
  }

  .project-capacity {
    font-size: 0.82rem;
    margin-top: 8px;
    padding-top: 8px;
  }

  /* Why Us Section */
  .why-us-section {
    padding: 55px 0 !important;
  }

  .why-us-card {
    padding: 24px 20px !important;
    border-radius: 12px !important;
  }

  .why-us-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
    border-radius: 10px;
  }

  .why-us-icon i {
    font-size: 1.35rem !important;
  }

  .why-us-card h3 {
    font-size: 1.1rem !important;
  }

  .why-us-card p {
    font-size: 0.85rem !important;
  }

  /* Partner Logo Marquee */
  .partner-section {
    padding: 50px 0;
  }

  .logo-marquee-item {
    padding: 0 16px;
  }

  .partner-brand-card {
    padding: 12px 24px !important;
    font-size: 1.15rem !important;
    min-width: 140px;
    border-radius: 12px !important;
  }

  .partner-brand-card span[style*="font-size:0.75rem"] {
    font-size: 0.85rem !important;
  }

  /* CTA Section & Consultation Form */
  .cta-section {
    padding: 55px 0;
  }

  .cta-title {
    font-size: 1.45rem;
  }

  .cta-section .card {
    padding: 20px 16px !important;
    border-radius: 12px !important;
  }

  /* Footer Section */
  .site-footer {
    padding-top: 45px;
    padding-bottom: 25px;
  }

  .site-footer img {
    height: 75px !important;
    margin-bottom: 16px !important;
  }

  .footer-title {
    font-size: 1.1rem;
    margin-bottom: 16px;
    padding-bottom: 8px;
  }

  .footer-bottom {
    margin-top: 35px;
    padding-top: 20px;
  }

  /* Floating Action Buttons */
  .floating-contacts {
    right: 10px;
    bottom: 16px;
    gap: 8px;
  }

  .floating-btn {
    width: 38px;
    height: 38px;
    font-size: 0.95rem;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.25);
  }

  .floating-btn.zalo {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    padding: 0;
  }

  .floating-btn>svg {
    width: 18px;
    height: 18px;
  }

  .lead {
    font-size: 1rem !important;
  }
}

/* 3. Extra Small Screens & Mobile Hero Optimization */
@media (max-width: 991.98px) {
  .hero-section {
    min-height: 620px;
    padding-top: 125px !important;
    padding-bottom: 85px !important;
    align-items: center;
  }

  .hero-section .tracking-wider {
    font-size: 0.78rem !important;
    letter-spacing: 0.1em !important;
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-secondary) !important;
    border: 1px solid rgba(245, 158, 11, 0.35);
    padding: 5px 16px;
    border-radius: 50px;
    margin-bottom: 14px !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  }

  .hero-section .display-large {
    font-size: 1.7rem !important;
    line-height: 1.35 !important;
    margin-bottom: 16px !important;
  }

  .hero-checklist {
    font-size: 0.92rem !important;
    line-height: 1.6 !important;
    margin-bottom: 22px !important;
  }

  .hero-checklist li {
    margin-bottom: 8px !important;
  }

  .hero-btn-group {
    gap: 12px !important;
    margin-bottom: 12px !important;
  }

  .hero-btn-group .btn-premium {
    width: 100% !important;
    text-align: center !important;
    justify-content: center !important;
    padding: 12px 20px !important;
    font-size: 0.9rem !important;
    font-weight: 700 !important;
    border-radius: 12px !important;
  }

  .hero-swiper-pagination {
    bottom: 22px !important;
  }
}

@media (max-width: 575.98px) {
  .hero-section {
    min-height: 580px;
    padding-top: 120px !important;
    padding-bottom: 80px !important;
  }

  .display-large,
  .hero-section .display-large {
    font-size: 1.55rem !important;
  }

  .section-title {
    font-size: 1.45rem;
  }

  .stat-number {
    font-size: 1.5rem;
  }

  .stat-label {
    font-size: 0.7rem;
  }
}

/* 4. Complete Horizontal Overflow & Scrollbar Fix (Mobile & Tablet) */
@media (max-width: 991.98px) {

  html,
  body {
    overflow-x: hidden !important;
    position: relative !important;
    width: 100% !important;
    max-width: 100% !important;
  }

  header,
  main,
  footer,
  section,
  .hero-section,
  .stats-section,
  .intro-section,
  .solutions-section,
  .investment-section,
  .projects-section,
  .why-us-section,
  .partner-section,
  .cta-section {
    overflow-x: hidden !important;
    max-width: 100% !important;
  }

  /* Prevent AOS off-screen animation overflow on mobile */
  [data-aos] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  /* Hide protruding navigation arrows on mobile touch devices */
  .hero-swiper-button,
  .timeline-swiper-button-prev,
  .timeline-swiper-button-next,
  .swiper-button-prev,
  .swiper-button-next {
    display: none !important;
  }

  .about-hero,
  .vision-mission-section,
  .timeline-section,
  .org-chart-section,
  .gallery-section {
    overflow-x: hidden !important;
    max-width: 100% !important;
  }
}

/* 5. About Page Responsive Optimization */
@media (max-width: 991.98px) {
  .about-hero {
    height: auto !important;
    min-height: 380px !important;
    padding-top: 125px !important;
    padding-bottom: 55px !important;
  }

  .about-hero .badge {
    font-size: 0.75rem !important;
    letter-spacing: 0.08em !important;
    background: rgba(245, 158, 11, 0.18) !important;
    color: var(--color-secondary) !important;
    border: 1px solid rgba(245, 158, 11, 0.35) !important;
    padding: 6px 16px !important;
    border-radius: 50px !important;
    margin-bottom: 14px !important;
  }

  .about-hero h1 {
    font-size: 1.65rem !important;
    line-height: 1.35 !important;
    margin-bottom: 12px !important;
  }

  .about-hero .lead-text {
    font-size: 0.92rem !important;
    line-height: 1.6 !important;
    margin-bottom: 20px !important;
  }

  .about-hero .btn-premium {
    width: 100% !important;
    text-align: center !important;
    justify-content: center !important;
    padding: 12px 20px !important;
    font-size: 0.88rem !important;
    border-radius: 12px !important;
  }

  .vision-card {
    padding: 26px 20px !important;
  }

  .timeline-horizontal-line {
    display: none !important;
  }

  .level-2-row {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 14px !important;
  }

  .org-node {
    min-width: 100% !important;
    max-width: 100% !important;
    padding: 14px 10px !important;
  }

  .org-node h5 {
    font-size: 0.8rem !important;
  }

  .btn-gallery-filter {
    padding: 8px 16px !important;
    font-size: 0.8rem !important;
  }
}

@media (max-width: 575.98px) {
  .about-hero {
    min-height: 350px !important;
    padding-top: 135px !important;
    padding-bottom: 45px !important;
  }

  .about-hero h1 {
    font-size: 1.5rem !important;
  }

  .level-2-row {
    grid-template-columns: 1fr !important;
  }
}

/* 6. Products Page Responsive Optimization */
@media (max-width: 991.98px) {
  /* .products-hero {
    padding-top: 125px !important;
    padding-bottom: 50px !important;
  } */

  .products-hero h1,
  #hero-title {
    font-size: 1.7rem !important;
    line-height: 1.35 !important;
    margin-bottom: 12px !important;
  }

  .products-hero p,
  #hero-desc {
    font-size: 0.92rem !important;
    line-height: 1.6 !important;
  }

  .catalog-section {
    overflow-x: hidden !important;
    max-width: 100% !important;
  }

  .product-card-img-wrapper {
    height: 200px !important;
  }
}

@media (max-width: 575.98px) {
  /* .products-hero {
    padding-top: 115px !important;
    padding-bottom: 40px !important;
  } */

  .products-hero h1,
  #hero-title {
    font-size: 1.5rem !important;
  }

  .filter-dropdown-btn {
    width: 100% !important;
    min-width: 100% !important;
  }

  .product-card-img-wrapper {
    height: 180px !important;
  }

  .product-card-body {
    padding: 16px !important;
  }

  .pagination-container {
    gap: 6px !important;
    margin-top: 35px !important;
  }

  .page-btn {
    width: 38px !important;
    height: 38px !important;
    font-size: 0.88rem !important;
  }
}

/* Products Hero Breadcrumb & Badge Enhancements */
.products-hero .breadcrumb-item+.breadcrumb-item::before {
  color: rgba(255, 255, 255, 0.5) !important;
}

.products-hero #hero-badge {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  letter-spacing: 0.08em;
}

/* 7. Product Detail Page Responsive Optimization */
@media (max-width: 991.98px) {
  .breadcrumb-section {
    padding-top: 115px !important;
    padding-bottom: 15px !important;
  }

  .detail-info-card {
    padding-left: 0 !important;
    margin-top: 25px !important;
  }

  .detail-gallery-swiper {
    height: 340px !important;
  }
}

@media (max-width: 767.98px) {
  .detail-gallery-swiper {
    height: 290px !important;
  }

  .detail-thumbnail-box {
    width: 64px !important;
    height: 64px !important;
  }

  .premium-tabs {
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    padding-bottom: 4px !important;
    border-bottom: 2px solid rgba(17, 70, 168, 0.08) !important;
  }

  .premium-tabs .nav-link {
    padding: 10px 18px !important;
    font-size: 0.88rem !important;
    white-space: nowrap !important;
  }

  .specs-table th {
    width: 40% !important;
    font-size: 0.84rem !important;
    padding: 10px 12px !important;
  }

  .specs-table td {
    font-size: 0.84rem !important;
    padding: 10px 12px !important;
  }
}

@media (max-width: 575.98px) {
  .breadcrumb-section {
    padding-top: 115px !important;
  }

  .detail-gallery-swiper {
    height: 250px !important;
  }

  .detail-info-card #product-name {
    font-size: 1.35rem !important;
    line-height: 1.35 !important;
  }

  .detail-highlights-list li {
    font-size: 0.88rem !important;
  }

  #open-quote-btn {
    width: 100% !important;
    justify-content: center !important;
  }

  .quote-modal-card {
    margin: 0 16px !important;
    max-height: 90vh !important;
    overflow-y: auto !important;
  }

  .quote-modal-header {
    padding: 20px 18px !important;
  }

  .quote-modal-body {
    padding: 20px 18px !important;
  }
}

/* ─── Solution Benefit Items ──────────────────────────────── */
.solution-benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 10px;
}

.solution-benefit-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: rgba(34, 197, 94, 0.15);
  color: #16A34A;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
  margin-top: 2px;
}

/* 8. Solutions Page Responsive Optimization */
@media (max-width: 991.98px) {
  .solutions-hero {
    padding: 120px 0 35px 0 !important;
  }

  .bg-light-section {
    padding-top: 24px !important;
    padding-bottom: 24px !important;
  }

  /* Compact Card Layout for Mobile & Tablet Solutions */
  .solution-detail-section {
    background: #FFFFFF !important;
    border-radius: 16px !important;
    border: 1px solid rgba(17, 70, 168, 0.08) !important;
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.03) !important;
    padding: 18px 16px !important;
    margin-bottom: 20px !important;
    scroll-margin-top: 75px !important;
  }

  /* Reset Bootstrap g-5 Gutter & Extra Column Margins inside Solution Cards */
  .solution-detail-section.row {
    --bs-gutter-x: 0 !important;
    --bs-gutter-y: 0 !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
  }

  .solution-detail-section.row>* {
    padding-left: 0 !important;
    padding-right: 0 !important;
    margin-top: 0 !important;
  }

  .solution-detail-section.row>*:not(:first-child) {
    margin-top: 12px !important;
  }

  /* Sleek Gradient Separator Line between Solution Blocks on Mobile */
  .solution-divider {
    display: block !important;
    border: none !important;
    height: 1px !important;
    background: linear-gradient(90deg, transparent, rgba(17, 70, 168, 0.35), transparent) !important;
    margin: 24px auto !important;
    width: 85% !important;
    opacity: 0.9 !important;
  }

  .solution-visual-box {
    background: transparent !important;
    border: none !important;
    padding: 0 !important;
    margin-bottom: 14px !important;
    box-shadow: none !important;
  }

  .solution-visual-img {
    border-radius: 12px !important;
    margin-bottom: 10px !important;
  }

  .solution-diagram-wrapper {
    background: #F8FAFC !important;
    border: 1px solid #E2E8F0 !important;
    border-radius: 10px !important;
    padding: 10px 12px !important;
    margin-bottom: 14px !important;
  }

  .solution-benefit-item {
    background: #F8FAFC !important;
    border: 1px solid #F1F5F9 !important;
    border-radius: 8px !important;
    padding: 8px 10px !important;
    margin-bottom: 6px !important;
  }

  .solution-benefit-item .text-muted {
    font-size: 0.83rem !important;
    color: #334155 !important;
  }

  .solution-specs-table {
    border-radius: 10px !important;
    overflow: hidden !important;
    border: 1px solid #E2E8F0 !important;
    margin-bottom: 14px !important;
  }
}

@media (max-width: 767.98px) {
  #solution-filter-container {
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    justify-content: flex-start !important;
    padding: 2px 10px 8px 10px !important;
    -webkit-overflow-scrolling: touch !important;
    margin-bottom: 20px !important;
    scrollbar-width: none !important;
    -ms-overflow-style: none !important;
  }

  #solution-filter-container::-webkit-scrollbar {
    display: none !important;
    width: 0 !important;
    height: 0 !important;
  }

  .btn-solution-filter-premium {
    flex-shrink: 0 !important;
    padding: 8px 16px !important;
    font-size: 0.82rem !important;
    white-space: nowrap !important;
  }

  .solution-specs-table th {
    width: 42% !important;
    font-size: 0.82rem !important;
    padding: 8px 10px !important;
  }

  .solution-specs-table td {
    font-size: 0.82rem !important;
    padding: 8px 10px !important;
  }

  .invest-cta-section {
    padding: 35px 0 !important;
  }
}

@media (max-width: 575.98px) {
  .solutions-hero {
    padding: 110px 0 28px 0 !important;
  }

  .solutions-hero #hero-title {
    font-size: 1.65rem !important;
    margin-bottom: 8px !important;
  }

  .solutions-hero #hero-desc {
    font-size: 0.88rem !important;
    line-height: 1.5 !important;
  }

  .solutions-hero+.bg-white.border-bottom {
    display: none !important;
  }

  .solution-detail-section h2 {
    font-size: 1.3rem !important;
    line-height: 1.3 !important;
    margin-bottom: 10px !important;
  }

  .trigger-quote-btn {
    width: 100% !important;
    justify-content: center !important;
    text-align: center !important;
    padding: 10px 16px !important;
    font-size: 0.88rem !important;
  }

  .invest-cta-section h2 {
    font-size: 1.5rem !important;
  }

  .invest-cta-section .btn-premium {
    width: 100% !important;
    justify-content: center !important;
    text-align: center !important;
  }
}

/* 9. Investment Page Responsive Enhancements */
@media (max-width: 767.98px) {
  .solutions-hero .d-flex.justify-content-center.gap-3 {
    flex-direction: column !important;
    gap: 10px !important;
    width: 100% !important;
  }

  .solutions-hero .d-flex.justify-content-center.gap-3 .btn-premium {
    width: 100% !important;
    justify-content: center !important;
  }
}

/* 10. Projects Page Responsive Enhancements */
@media (max-width: 991.98px) {
  .projects-hero {
    padding: 120px 0 35px 0 !important;
  }
}

@media (max-width: 767.98px) {
  .projects-hero {
    padding: 110px 0 28px 0 !important;
  }

  .projects-hero #hero-title {
    font-size: 1.65rem !important;
    margin-bottom: 8px !important;
  }

  .projects-hero #hero-desc {
    font-size: 0.88rem !important;
    line-height: 1.5 !important;
  }

  /* Horizontal Touch-Scroll Filter Buttons on Mobile */
  .project-filters {
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    justify-content: flex-start !important;
    padding: 2px 10px 8px 10px !important;
    -webkit-overflow-scrolling: touch !important;
    margin-bottom: 20px !important;
    scrollbar-width: none !important;
    -ms-overflow-style: none !important;
  }

  .project-filters::-webkit-scrollbar {
    display: none !important;
    width: 0 !important;
    height: 0 !important;
  }

  .project-filters .filter-btn {
    flex-shrink: 0 !important;
    padding: 8px 16px !important;
    font-size: 0.82rem !important;
    white-space: nowrap !important;
  }

  .project-card {
    height: 250px !important;
    border-radius: 14px !important;
  }

  .project-detail-hero {
    padding: 110px 0 28px 0 !important;
  }

  .project-detail-hero #hero-title,
  .project-detail-hero h1 {
    font-size: 1.45rem !important;
    line-height: 1.35 !important;
    margin-bottom: 8px !important;
  }

  .project-detail-hero #hero-desc,
  .project-detail-hero p.lead {
    font-size: 0.85rem !important;
    line-height: 1.5 !important;
  }

  .project-detail-hero .badge {
    font-size: 0.7rem !important;
    padding: 5px 12px !important;
  }

  /* Project Detail Content & Typography Responsive Synchronization */
  .detail-heading {
    font-size: 1.25rem !important;
    line-height: 1.35 !important;
    margin-bottom: 12px !important;
  }

  .bg-light-section p,
  .bg-light-section ul li {
    font-size: 0.9rem !important;
    line-height: 1.6 !important;
  }

  .bg-light-section .bg-white.p-4 {
    padding: 16px 14px !important;
    margin-bottom: 16px !important;
    border-radius: 12px !important;
  }

  .info-sidebar-card {
    padding: 16px 14px !important;
    margin-bottom: 16px !important;
    border-radius: 12px !important;
  }

  .info-sidebar-title {
    font-size: 1.05rem !important;
    margin-bottom: 12px !important;
    padding-bottom: 8px !important;
  }

  .info-sidebar-card table td {
    font-size: 0.82rem !important;
    padding: 5px 0 !important;
  }

  .benefit-item-card {
    padding: 12px 14px !important;
    margin-bottom: 10px !important;
  }

  .benefit-number {
    font-size: 1.4rem !important;
    line-height: 1.2 !important;
  }

  .benefit-desc {
    font-size: 0.8rem !important;
  }

  .gallery-img-wrapper {
    margin-bottom: 10px !important;
    aspect-ratio: 16 / 10 !important;
  }

  .project-cta-section {
    padding: 35px 0 !important;
  }

  .project-cta-section h2 {
    font-size: 1.5rem !important;
  }

  .project-cta-section .btn-premium {
    width: 100% !important;
    justify-content: center !important;
    text-align: center !important;
  }

  /* News Listing Page Responsive Overrides (Compact Mobile Spacing) */
  .news-catalog-section {
    padding-top: 1.5rem !important;
    padding-bottom: 1.5rem !important;
  }

  .news-filter-wrapper {
    gap: 12px !important;
    margin-bottom: 16px !important;
  }

  .news-card {
    border-radius: 12px !important;
  }

  .news-card-img-wrapper {
    height: 160px !important;
  }

  .news-card-body {
    padding: 16px 16px !important;
  }

  .news-card-meta {
    font-size: 0.72rem !important;
    margin-bottom: 6px !important;
    gap: 10px !important;
  }

  .news-card-title {
    font-size: 0.98rem !important;
    line-height: 1.3 !important;
    margin-bottom: 6px !important;
    height: auto !important;
    max-height: 2.6em !important;
  }

  .news-card-summary {
    font-size: 0.82rem !important;
    line-height: 1.45 !important;
    margin-bottom: 10px !important;
    height: auto !important;
    max-height: 2.9em !important;
    -webkit-line-clamp: 2 !important;
  }

  .news-card-action {
    padding-top: 8px !important;
    font-size: 0.8rem !important;
  }

  #news-grid {
    margin-top: 0 !important;
  }

  #news-grid>* {
    padding-left: 8px !important;
    padding-right: 8px !important;
    margin-top: 14px !important;
  }

  .search-box-container {
    max-width: 100% !important;
  }

  .search-box-container input {
    padding: 9px 38px 9px 16px !important;
    font-size: 0.85rem !important;
  }

  .pagination-container {
    margin-top: 22px !important;
    gap: 6px !important;
  }

  .page-btn {
    width: 36px !important;
    height: 36px !important;
    font-size: 0.85rem !important;
  }

  /* News Detail Page Mobile Responsive Overrides */
  .news-detail-section {
    padding-top: 90px !important;
    padding-bottom: 1.5rem !important;
  }

  .article-header {
    margin-bottom: 16px !important;
  }

  .article-category-badge {
    font-size: 0.72rem !important;
    padding: 4px 10px !important;
    margin-bottom: 8px !important;
  }

  .article-title {
    font-size: 1.35rem !important;
    line-height: 1.35 !important;
    margin-bottom: 10px !important;
  }

  .article-meta {
    font-size: 0.75rem !important;
    gap: 12px !important;
    margin-top: 10px !important;
    padding-bottom: 10px !important;
  }

  .article-body {
    font-size: 0.92rem !important;
    line-height: 1.65 !important;
    text-align: left !important;
  }

  .article-body p {
    margin-bottom: 16px !important;
  }

  .article-body h2,
  .article-body h3,
  .article-body h4,
  .article-body h5 {
    font-size: 1.12rem !important;
    line-height: 1.35 !important;
    margin-top: 22px !important;
    margin-bottom: 10px !important;
  }

  .article-body img {
    max-width: 100% !important;
    height: auto !important;
    border-radius: 10px !important;
    margin-bottom: 16px !important;
  }

  .article-body ul,
  .article-body ol {
    margin-bottom: 16px !important;
    padding-left: 18px !important;
  }

  .sidebar-widget {
    padding: 16px 14px !important;
    margin-bottom: 20px !important;
    border-radius: 12px !important;
  }

  .widget-title {
    font-size: 1.05rem !important;
    margin-bottom: 14px !important;
    padding-bottom: 8px !important;
  }

  .related-post-item {
    gap: 10px !important;
    margin-bottom: 12px !important;
    padding-bottom: 12px !important;
  }

  .related-post-img-box {
    width: 70px !important;
    height: 52px !important;
    border-radius: 8px !important;
  }

  .related-post-title {
    font-size: 0.85rem !important;
    line-height: 1.3 !important;
    margin-bottom: 4px !important;
  }

  .related-post-date {
    font-size: 0.72rem !important;
  }

  .sidebar-cta-banner {
    padding: 20px 16px !important;
    border-radius: 12px !important;
  }

  .sidebar-cta-banner h4 {
    font-size: 1.2rem !important;
    margin-bottom: 6px !important;
  }

  .sidebar-cta-banner p {
    font-size: 0.82rem !important;
    margin-bottom: 14px !important;
  }
}

/* ==========================================================================
   Section 2.4: Quy trình hợp tác (Timeline)
   ========================================================================== */
.investment-process-section {
  padding: 100px 0;
  background-color: var(--color-bg-light);
  position: relative;
  overflow: hidden;
}

.timeline-container {
  position: relative;
  margin-top: 50px;
}

.timeline-container .row {
  position: relative;
  z-index: 2;
}

.timeline-line {
  position: absolute;
  top: 29%;
  left: 12%;
  right: 12%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary-light), var(--color-primary), var(--color-secondary), var(--color-primary-light));
  z-index: 1;
}

@media (max-width: 991.98px) {
  .timeline-line {
    display: none;
  }
}

.timeline-step-card {
  position: relative;
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 20px 10px;
  transition: var(--transition-smooth);
  z-index: 2;
  height: 100%;
}

.timeline-step-card:hover {
  transform: translateY(-5px);
}

.step-icon-wrapper {
  position: relative;
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
}

.step-icon-box {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background-color: #FFFFFF;
  color: var(--color-primary);
  font-size: 1.75rem;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
  border: 3px solid var(--color-primary-light);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  z-index: 3;
}

.step-number-bubble {
  position: absolute;
  top: -2px;
  right: -2px;
  background-color: var(--color-secondary);
  color: var(--color-primary-dark);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.7rem;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px rgba(244, 163, 0, 0.2);
  transition: var(--transition-smooth);
  z-index: 4;
}

.timeline-step-card:hover .step-icon-box {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
  box-shadow: 0 8px 25px rgba(17, 70, 168, 0.25);
}

.timeline-step-card:hover .step-number-bubble {
  background-color: var(--color-primary-dark);
  color: #FFFFFF;
}

.step-meta {
  display: block;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.72rem;
  color: var(--color-secondary);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.step-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-md);
  color: var(--color-text-dark);
  margin-bottom: 10px;
}

.step-desc {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 0;
}

/* 5 Column Grid for Bootstrap */
@media (min-width: 992px) {
  .col-lg-2-5 {
    flex: 0 0 20%;
    max-width: 20%;
  }
}