/*
  Modern design system with contemporary UI patterns.
  Clean typography, glassmorphism, gradients, and micro-interactions.
*/

/* Performance optimizations */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Optimize images and media */
img {
  max-width: 100%;
  height: auto;
}

/* Accessibility: Respect user's motion preferences */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* GPU acceleration for animations */
.partners-grid,
.lang-btn,
.card,
.nav,
.hero h1,
.section-title {
  will-change: transform;
  transform: translateZ(0);
}

/* Optimize animations for better performance */
@media (prefers-reduced-motion: no-preference) {
  .partners-grid {
    animation: infiniteScroll 20s linear infinite;
  }
}

/* Performance optimizations */
.partners-grid {
  contain: layout style paint;
  transform: translateZ(0);
  backface-visibility: hidden;
  perspective: 1000px;
}

/* Hover animation classes */
.card-hover {
  transform: translateY(-4px) !important;
  transition: transform 0.3s ease !important;
}

.btn-hover {
  transform: translateY(-2px) !important;
  transition: transform 0.3s ease !important;
}

.hero h1 {
  contain: layout style;
}

/* Optimize for mobile performance */
@media (max-width: 767px) {
  .partners-grid {
    will-change: auto;
  }
  
  .hero h1 {
    will-change: auto;
  }
}

:root {
  /* NMA Logo Color Scheme */
  --brand-primary: #04354f;
  --brand-primary-light: #0a4a6b;
  --brand-primary-dark: #032a3d;
  --brand-secondary: #ed9747;
  --brand-secondary-light: #f0a85a;
  --brand-secondary-dark: #e0852e;
  --accent-orange: #ed9747;
  --accent-orange-light: #f0a85a;
  --accent-orange-dark: #e0852e;
  --accent-gray-blue: #5e7681;
  --accent-gray-blue-light: #7a8f98;
  --accent-gray-blue-dark: #4a5d66;
  --accent-light-gray: #a7b3b8;
  --accent-light-gray-light: #b8c2c6;
  --accent-light-gray-dark: #96a3a9;
  --gray-950: #0a0a0a;
  --gray-900: #171717;
  --gray-800: #262626;
  --gray-700: #404040;
  --gray-600: #525252;
  --gray-500: #737373;
  --gray-400: #a3a3a3;
  --gray-300: #d4d4d4;
  --gray-200: #e5e5e5;
  --gray-100: #f5f5f5;
  --gray-50: #fafafa;
  --maxw: 1280px;
  --radius: 16px;
  --radius-sm: 12px;
  --radius-lg: 24px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Be Vietnam Pro', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--gray-900);
  background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: inherit; text-decoration: none; transition: all 0.2s ease; }
img { max-width: 100%; display: block; }

.container { width: 100%; max-width: var(--maxw); padding: 0 24px; margin: 0 auto; }
.section { padding: 60px 0; }
.section-title { 
  font-size: clamp(32px, 5vw, 48px); 
  font-weight: 700; 
  margin: 0 0 16px; 
  background: linear-gradient(135deg, var(--gray-900), var(--brand-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}
.section-sub { 
  color: var(--gray-600); 
  margin: 0 0 32px; 
  font-size: 18px;
  line-height: 1.7;
}

.nav { 
  position: sticky; 
  top: 0; 
  z-index: 10; 
  background: rgba(255, 255, 255, 0.9); 
  backdrop-filter: blur(40px) saturate(250%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  animation: slideDown 0.6s ease-out;
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(50px) saturate(300%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
}
.nav-inner { 
  display: flex; 
  align-items: center; 
  justify-content: space-between; 
  height: 160px; 
  padding: 16px 0;
}
.brand { 
  display: flex; 
  align-items: center; 
  gap: 24px; 
  font-weight: 700; 
  font-size: 28px;
  color: var(--gray-900);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  animation: fadeInLeft 0.8s ease-out;
}

.brand:hover {
  transform: translateY(-2px);
  gap: 28px;
}

.brand span {
  transition: all 0.3s ease;
  position: relative;
}

.brand:hover span {
  color: var(--brand-primary);
  transform: scale(1.05);
}
.brand-logo { 
  width: 128px; 
  height: 128px; 
  border-radius: var(--radius-sm); 
  object-fit: contain;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  padding: 8px;
  display: block;
  flex-shrink: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  animation: logoFloat 3s ease-in-out infinite;
}

.brand-logo:hover {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(15px);
}

@keyframes logoFloat {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-3px);
  }
}
.nav-links { 
  display: none; 
  gap: 32px; 
  color: var(--gray-700);
  font-weight: 500;
  font-size: 18px;
  animation: fadeInRight 0.8s ease-out 0.2s both;
}

.nav-links a {
  position: relative;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
}

.nav-links a::before {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--brand-primary), var(--brand-secondary));
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.nav-links a:hover::before {
  width: 100%;
}

.nav-links a:hover {
  color: var(--brand-primary);
  transform: translateY(-2px);
  background: rgba(4, 53, 79, 0.05);
}
.nav-toggle { 
  display: inline-flex; 
  background: none; 
  border: 0; 
  font-size: 28px; 
  color: var(--gray-700);
  cursor: pointer;
  padding: 12px;
  border-radius: var(--radius-sm);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  animation: pulse 3s ease-in-out infinite;
}

.nav-toggle:hover { 
  background: var(--gray-100);
  transform: scale(1.1) rotate(90deg);
  color: var(--brand-primary);
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}
/* Responsive Navigation */
@media (max-width: 767px) {
  .nav-inner {
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    padding: 12px 0;
    height: auto;
    min-height: 120px;
  }
  
  .brand {
    order: 1;
    flex: 1;
    min-width: 0;
    gap: 12px;
    font-size: 20px;
  }
  
  .nav-controls {
    order: 2;
    margin-left: auto;
    gap: 8px;
    flex-shrink: 0;
  }
  
  .nav-links {
    display: none;
  }
  
  .lang-toggle {
    padding: 3px;
  }
  
  .lang-btn {
    padding: 8px 12px;
    font-size: 14px;
  }
  
  .nav-toggle {
    font-size: 24px;
    padding: 8px;
  }
}

@media (min-width: 768px) { 
  .nav-links { display: flex; } 
  .nav-toggle { display: none; } 
  .mobile-menu { display: none; }
  
  /* Language toggle tablet optimization */
  .lang-btn {
    padding: 6px 10px;
    font-size: 13px;
  }
  
}
.nav a:hover { color: var(--brand-primary); transform: translateY(-1px); }

.nav-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  animation: fadeInRight 0.8s ease-out 0.4s both;
}

/* Language Toggle Buttons */
.lang-toggle {
  display: flex;
  background: rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-sm);
  padding: 2px;
  backdrop-filter: blur(15px);
  box-shadow: 0 4px 12px rgba(4, 53, 79, 0.15);
  position: relative;
  gap: 0;
  overflow: hidden;
}

.lang-toggle::before {
  content: '';
  position: absolute;
  top: 4px;
  left: 4px;
  right: 4px;
  bottom: 4px;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-light));
  border-radius: var(--radius-sm);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 1;
}

.lang-toggle:hover::before {
  opacity: 0.1;
}

.lang-btn {
  background: none;
  border: none;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  color: var(--gray-600);
  position: relative;
  z-index: 2;
  min-width: 40px;
  text-align: center;
  margin: 0 1px;
}

.lang-btn:hover {
  transform: scale(1.05);
}

.lang-btn.active {
  color: var(--brand-primary);
  background: rgba(37, 99, 235, 0.1);
}

.lang-btn:hover:not(.active) {
  color: var(--gray-800);
  background: rgba(255, 255, 255, 0.5);
}

/* Mobile menu */
.mobile-menu { 
  display: none; 
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(25px) saturate(200%);
  flex-direction: column;
  gap: 0;
  padding: 16px 0;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 1000;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  margin-top: 8px;
  transform: translateY(-20px);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu.open { 
  display: flex; 
  transform: translateY(0);
  opacity: 1;
  animation: slideDownBounce 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}
.mobile-menu a { 
  display: block; 
  padding: 16px 24px; 
  color: var(--gray-700);
  border-bottom: 1px solid var(--gray-100);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 16px;
  font-weight: 500;
  position: relative;
  overflow: hidden;
}

.mobile-menu a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--brand-primary), var(--brand-secondary));
  transition: width 0.3s ease;
  z-index: -1;
}

.mobile-menu a:hover::before {
  width: 4px;
}

.mobile-menu a:hover {
  color: var(--brand-primary);
  padding-left: 32px;
  background: rgba(4, 53, 79, 0.05);
  transform: translateX(8px);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDownBounce {
  0% {
    opacity: 0;
    transform: translateY(-30px) scale(0.95);
  }
  50% {
    opacity: 0.8;
    transform: translateY(5px) scale(1.02);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.hero { 
  padding: 120px 0 80px; 
  background: linear-gradient(135deg, #f0f0f0 0%, #e5e5e5 50%, #d8d8d8 100%);
  position: relative;
  overflow: hidden;
  z-index: 1;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 80%, rgba(4, 53, 79, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(237, 151, 71, 0.1) 0%, transparent 50%);
  pointer-events: none;
}
.hero-grid { 
  display: grid; 
  grid-template-columns: 1fr;
  gap: 48px; 
  position: relative;
  z-index: 2;
}
.hero h1 { 
  font-size: clamp(40px, 8vw, 64px); 
  font-weight: 800; 
  line-height: 1.1; 
  margin: 0; 
  animation: fadeUp 600ms ease both;
  background: linear-gradient(135deg, var(--gray-900), var(--brand-primary), var(--accent-orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  z-index: 3;
}
.hero p { 
  color: var(--gray-600); 
  margin: 24px 0 0; 
  animation: fadeUp 800ms ease both;
  font-size: 20px;
  line-height: 1.6;
}
.hero-cta { 
  display: inline-flex; 
  align-items: center; 
  justify-content: center; 
  gap: 12px; 
  padding: 16px 32px; 
  border-radius: var(--radius); 
  color: #fff; 
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-light));
  box-shadow: var(--shadow-lg); 
  transition: all 0.3s ease; 
  animation: fadeUp 1000ms ease both;
  font-weight: 600;
  font-size: 16px;
  border: none;
  cursor: pointer;
}
.hero-cta:hover { 
  transform: translateY(-2px); 
  box-shadow: var(--shadow-xl);
  background: linear-gradient(135deg, var(--brand-primary-dark), var(--brand-primary));
}
.features { 
  margin-top: 32px; 
  display: grid; 
  gap: 16px; 
}
.feature { 
  display: flex; 
  align-items: center; 
  gap: 12px; 
  color: var(--gray-700); 
  font-size: 16px;
  font-weight: 500;
  padding: 12px 0;
}
.feature .dot { 
  width: 12px; 
  height: 12px; 
  border-radius: 999px; 
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-light));
  box-shadow: 0 0 0 4px rgba(30, 64, 175, 0.1);
  flex-shrink: 0;
}
.hero-card { 
  width: 100%;
  max-width: 632px;
  height: 380px;
  border: 1px solid rgba(255, 255, 255, 0.2); 
  border-radius: var(--radius-lg); 
  box-shadow: var(--shadow-xl); 
  overflow: hidden; 
  animation: fadeIn 800ms ease both;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-media { 
  display: contents;
}
.hero-logo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  background: none;
  padding: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  filter: brightness(1.05) contrast(1.1) saturate(1.1);
}

.hero-logo:hover {
  transform: scale(1.02);
  filter: brightness(1.1) contrast(1.15) saturate(1.15);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

@media (min-width: 992px) { 
  .hero-grid { 
    grid-template-columns: 1.2fr 1fr; 
    align-items: center; 
    gap: 64px;
  }
  
  /* Fix overlap on desktop */
  .hero {
    padding: 140px 0 100px;
    position: relative;
    z-index: 1;
  }
  
  .hero h1 {
    position: relative;
    z-index: 3;
    margin-bottom: 24px;
  }
  
  /* Vietnamese text specific for desktop */
  .hero h1:lang(vi) {
    line-height: 1.3;
    padding-top: 0;
    margin-bottom: 24px;
    word-break: keep-all;
    overflow-wrap: break-word;
    orphans: 3;
    widows: 3;
  }
}

.grid { display: grid; gap: 24px; }
.grid-3 { 
  grid-template-columns: 1fr; 
  display: grid;
  gap: 24px;
}
/* Mobile Responsive Design */
@media (max-width: 767px) {
  /* Container and spacing */
  .container {
    padding: 0 16px;
  }
  
  .section {
    padding: 32px 0;
  }
  
  /* Typography */
  .section-title {
    font-size: 28px;
    line-height: 1.2;
    margin-bottom: 16px;
  }
  
  .section-sub {
    font-size: 16px;
    margin-bottom: 24px;
  }
  
  /* Hero Section */
  .hero {
    padding: 100px 0 60px;
    margin-top: 20px;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    text-align: center;
  }
  
  .hero h1 {
    font-size: 24px;
    line-height: 1.3;
    margin-bottom: 16px;
    padding-top: 20px;
    position: relative;
    z-index: 3;
  }
  
  .hero p {
    font-size: 16px;
    margin-bottom: 24px;
  }
  
  .hero-cta {
    padding: 12px 24px;
    font-size: 16px;
  }
  
  .features {
    gap: 12px;
    margin-top: 24px;
  }
  
  .feature {
    font-size: 14px;
    padding: 8px 0;
  }
  
  /* Cards and Grids */
  .grid-3 {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .card {
    padding: 20px;
  }
  
  .card h3 {
    font-size: 18px;
    margin-bottom: 12px;
  }
  
  .card p {
    font-size: 14px;
    line-height: 1.5;
  }
  
  /* Services Section */
  .services .grid {
    gap: 16px;
  }
  
  /* Projects Section */
  .project-media {
    height: 200px;
  }
  
  /* Hero logo mobile optimization */
  .hero-card {
    max-width: 100%;
    height: 253px;
  }
  
  .hero-logo {
    padding: 0;
    max-height: 253px;
  }
  
  /* Partners Section */
  .partners-grid {
    gap: 20px;
    padding: 12px 0;
  }
  
  
  .partner-card {
    flex: 0 0 280px;
    min-width: 280px;
    padding: 24px;
  }
  
  .partner-logo {
    width: 80px;
    height: 60px;
  }
  
  .partner-card h3 {
    font-size: 18px;
  }
  
  .partner-card p {
    font-size: 14px;
  }
  
  /* Contact Form */
  .form {
    margin-top: 24px;
  }
  
  .row-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .form input,
  .form textarea {
    padding: 12px 16px;
    font-size: 16px;
  }
  
  .btn {
    width: 100%;
    padding: 14px 24px;
    font-size: 16px;
  }
  
  /* Contact Info */
  .contact-info {
    font-size: 14px;
    margin-top: 16px;
  }
  
  /* Footer */
  .footer .container {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }
  
  /* Language Toggle */
  .lang-toggle {
    order: -1;
  }
  
  /* Language toggle mobile optimization */
  .lang-btn {
    padding: 4px 6px;
    font-size: 11px;
    min-width: 32px;
  }
  
  
  
  /* Text wrapping improvements */
  .hero h1,
  .section-title {
    word-wrap: break-word;
    hyphens: auto;
    -webkit-hyphens: auto;
    orphans: 2;
    widows: 2;
  }
  
  /* Better touch targets */
  .lang-btn,
  .nav-toggle,
  .btn {
    min-height: 44px;
    min-width: 44px;
  }
  
  /* Brand logo mobile optimization */
  .brand-logo {
    width: 112px;
    height: 112px;
  }
  
  /* Navigation mobile optimization */
  .nav-inner {
    height: 140px;
    padding: 12px 0;
  }
  
  .brand {
    gap: 16px;
    font-size: 20px;
  }
  
  /* Prevent horizontal scroll */
  body {
    overflow-x: hidden;
  }
  
  /* Consolidated hero h1 styles */
  .hero h1 {
    max-width: 100%;
    overflow-wrap: break-word;
    orphans: 2;
    widows: 2;
    white-space: normal;
    position: relative;
    z-index: 3;
    display: block;
    width: 100%;
  }
  
  /* Vietnamese text specific styling */
  .hero h1:lang(vi) {
    line-height: 1.4;
    word-spacing: normal;
    word-break: keep-all;
    overflow-wrap: break-word;
    orphans: 3;
    widows: 3;
    margin-bottom: 8px;
  }
}

/* Tablet Responsive */
@media (min-width: 768px) and (max-width: 1023px) {
  .container {
    padding: 0 20px;
  }
  
  .section {
    padding: 48px 0;
  }
  
  .hero {
    padding: 140px 0 80px;
    position: relative;
    z-index: 1;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .hero h1 {
    position: relative;
    z-index: 3;
    margin-bottom: 20px;
  }
  
  /* Vietnamese text specific for tablet */
  .hero h1:lang(vi) {
    line-height: 1.4;
    padding-top: 0;
    margin-bottom: 20px;
    word-break: keep-all;
    overflow-wrap: break-word;
    orphans: 3;
    widows: 3;
  }
  
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  
  .partners-grid {
    gap: 22px;
    padding: 14px 0;
  }
  
  
  .partner-card {
    flex: 0 0 300px;
    min-width: 300px;
  }
  
  /* Navigation tablet optimization */
  .nav-inner {
    height: 140px;
    padding: 16px 0;
    align-items: center;
  }
  
  .brand {
    gap: 18px;
    font-size: 22px;
  }
  
  .brand-logo {
    width: 100px;
    height: 100px;
  }
  
  .nav-links {
    gap: 24px;
    font-size: 17px;
  }
  
  .nav-controls {
    gap: 12px;
  }
  
  /* Hero logo tablet optimization */
  .hero-card {
    max-width: 100%;
    height: 316px;
  }
  
  .hero-logo {
    padding: 0;
    max-height: 316px;
  }
}

/* Desktop Responsive */
@media (min-width: 1024px) {
  .grid-3 { 
    grid-template-columns: repeat(3, 1fr); 
  }
  
  .partners-grid {
    gap: 24px;
    padding: 16px 0;
  }
  
  
  .partner-card {
    flex: 0 0 320px;
    min-width: 320px;
  }
  
  /* Language toggle desktop optimization */
  .lang-btn {
    padding: 10px 16px;
    font-size: 15px;
  }
  
  
  /* Navigation desktop optimization */
  .nav-inner {
    height: 160px;
    padding: 20px 0;
    align-items: center;
  }
  
  .brand {
    gap: 24px;
    font-size: 24px;
  }
  
  .brand-logo {
    width: 120px;
    height: 120px;
  }
  
  .nav-links {
    gap: 32px;
    font-size: 16px;
  }
  
  .nav-controls {
    gap: 16px;
  }
  
  /* Hero logo desktop optimization */
  .hero-card {
    max-width: 100%;
    height: 380px;
  }
  
  .hero-logo {
    padding: 0;
    max-height: 380px;
  }
}

/* Large Desktop Optimization */
@media (min-width: 1200px) {
  .nav-inner {
    height: 180px;
    padding: 24px 0;
  }
  
  .brand {
    gap: 28px;
    font-size: 26px;
  }
  
  .brand-logo {
    width: 140px;
    height: 140px;
  }
  
  .nav-links {
    gap: 36px;
    font-size: 17px;
  }
  
  .hero {
    padding: 160px 0 100px;
  }
}

/* Specific fix for 772px+ overlap issue */
@media (min-width: 772px) {
  .hero {
    padding: 130px 0 90px;
    position: relative;
    z-index: 1;
  }
  
  .hero h1 {
    position: relative;
    z-index: 3;
    margin-bottom: 22px;
  }
  
  .hero h1:lang(vi) {
    line-height: 1.35;
    padding-top: 0;
    margin-bottom: 22px;
    word-break: keep-all;
    overflow-wrap: break-word;
    orphans: 3;
    widows: 3;
  }
}
.card { 
  border: 1px solid rgba(255, 255, 255, 0.3); 
  border-radius: 20px; 
  padding: 32px 28px; 
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08); 
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); 
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--brand-primary), var(--brand-secondary));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}
.card:hover { 
  transform: translateY(-8px) scale(1.02); 
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.98);
}
.card:hover::before {
  transform: scaleX(1);
}
.card h3 { 
  margin: 0 0 12px; 
  font-size: 20px; 
  font-weight: 600;
  color: var(--gray-900);
}
.card p { 
  margin: 0; 
  color: var(--gray-600); 
  font-size: 15px;
  line-height: 1.6;
}
.card-icon { 
  width: 64px; 
  height: 64px; 
  border-radius: 16px; 
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(248, 250, 252, 0.8));
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.card-icon svg {
  width: 28px;
  height: 28px;
  stroke-width: 2.5;
  transition: all 0.3s ease;
}

.service-icon-img {
  width: 34px;
  height: 34px;
  object-fit: contain;
  transition: all 0.3s ease;
  filter: brightness(1.1) contrast(1.1);
}

.card-icon::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.1));
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: 16px;
}

.card-icon:hover {
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  border-color: rgba(255, 255, 255, 0.4);
}

.card-icon:hover svg {
  transform: scale(1.1);
}

.card-icon:hover .service-icon-img {
  transform: scale(1.1);
  filter: brightness(1.2) contrast(1.2);
}

.card-icon:hover::before {
  opacity: 1;
}

/* Service-specific icon styles */
.service-icon-machining {
  background: linear-gradient(135deg, rgba(4, 53, 79, 0.1), rgba(4, 53, 79, 0.05));
  border-color: rgba(4, 53, 79, 0.2);
  color: #04354f;
}

.service-icon-machining:hover {
  background: linear-gradient(135deg, rgba(4, 53, 79, 0.15), rgba(4, 53, 79, 0.08));
  box-shadow: 0 12px 40px rgba(4, 53, 79, 0.2);
  border-color: rgba(4, 53, 79, 0.3);
}

.service-icon-automation {
  background: linear-gradient(135deg, rgba(237, 151, 71, 0.1), rgba(237, 151, 71, 0.05));
  border-color: rgba(237, 151, 71, 0.2);
  color: #ed9747;
}

.service-icon-automation:hover {
  background: linear-gradient(135deg, rgba(237, 151, 71, 0.15), rgba(237, 151, 71, 0.08));
  box-shadow: 0 12px 40px rgba(237, 151, 71, 0.2);
  border-color: rgba(237, 151, 71, 0.3);
}

.service-icon-conveyor {
  background: linear-gradient(135deg, rgba(94, 118, 129, 0.1), rgba(94, 118, 129, 0.05));
  border-color: rgba(94, 118, 129, 0.2);
  color: #5e7681;
}

.service-icon-conveyor:hover {
  background: linear-gradient(135deg, rgba(94, 118, 129, 0.15), rgba(94, 118, 129, 0.08));
  box-shadow: 0 12px 40px rgba(94, 118, 129, 0.2);
  border-color: rgba(94, 118, 129, 0.3);
}

.service-icon-trading {
  background: linear-gradient(135deg, rgba(167, 179, 184, 0.1), rgba(167, 179, 184, 0.05));
  border-color: rgba(167, 179, 184, 0.2);
  color: #a7b3b8;
}

.service-icon-trading:hover {
  background: linear-gradient(135deg, rgba(167, 179, 184, 0.15), rgba(167, 179, 184, 0.08));
  box-shadow: 0 12px 40px rgba(167, 179, 184, 0.2);
  border-color: rgba(167, 179, 184, 0.3);
}

.service-icon-components {
  background: linear-gradient(135deg, rgba(4, 53, 79, 0.1), rgba(4, 53, 79, 0.05));
  border-color: rgba(4, 53, 79, 0.2);
  color: #04354f;
}

.service-icon-components:hover {
  background: linear-gradient(135deg, rgba(4, 53, 79, 0.15), rgba(4, 53, 79, 0.08));
  box-shadow: 0 12px 40px rgba(4, 53, 79, 0.2);
  border-color: rgba(4, 53, 79, 0.3);
}
.card.mini { 
  padding: 20px; 
  text-align: center;
}

.project { 
  overflow: hidden; 
  padding: 0; 
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-lg);
  transition: all 0.3s ease;
}
.project:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}
.project-media { 
  height: 200px;
  background: linear-gradient(135deg, #e5e5e5, #d4d4d4); 
  display: grid; 
  place-items: center; 
  color: var(--gray-600); 
  font-weight: 600;
  font-size: 16px;
  overflow: hidden;
  border-bottom: 1px solid rgba(4, 53, 79, 0.1);
}

.project-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}

/* Remove featured project styling */

/* Project status indicators */
.project.status-completed {
  border-left: 4px solid #10b981;
}

.project.status-in-progress {
  border-left: 4px solid #f59e0b;
}

.project.status-planning {
  border-left: 4px solid #6b7280;
}

/* Project year and status display */
.project-year {
  display: inline-block;
  background: var(--brand-primary);
  color: white;
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 12px;
  font-weight: 600;
  margin-right: 8px;
}

.project-status {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 12px;
  font-weight: 600;
}

.project-status.completed {
  background: #10b981;
  color: white;
}

.project-status.in-progress {
  background: #f59e0b;
  color: white;
}

.project-status.planning {
  background: #6b7280;
  color: white;
}

/* Category-based styling */
.project[data-category="automation"] {
  border-top: 3px solid var(--brand-primary);
}

.project[data-category="manufacturing"] {
  border-top: 3px solid var(--brand-secondary);
}

.project[data-category="engineering"] {
  border-top: 3px solid var(--gray-600);
}

/* ===== COMPREHENSIVE RESPONSIVE OPTIMIZATIONS ===== */

/* Enhanced mobile optimizations */
@media (max-width: 479px) {
  /* Typography scaling */
  .hero h1 {
    font-size: 20px;
    line-height: 1.3;
  }
  
  .section-title {
    font-size: 24px;
    line-height: 1.2;
  }
  
  /* Project media optimization */
  .project-media {
    height: 160px;
  }
  
  /* Card spacing */
  .card {
    padding: 16px;
  }
  
  /* Navigation optimization */
  .nav-inner {
    height: 50px;
    padding: 8px 0;
  }
  
  .logo {
    font-size: 18px;
  }
  
  /* Language toggle mobile */
  .lang-btn {
    padding: 4px 8px;
    font-size: 11px;
  }
}

/* Enhanced tablet optimizations */
@media (min-width: 768px) and (max-width: 1023px) {
  /* Hero section tablet */
  .hero h1 {
    font-size: 28px;
    line-height: 1.3;
  }
  
  /* Project media tablet */
  .project-media {
    height: 190px;
  }
  
  /* Grid optimization */
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

/* Enhanced desktop optimizations */
@media (min-width: 1024px) {
  /* Hero section desktop */
  .hero h1 {
    font-size: 36px;
    line-height: 1.2;
  }
  
  /* Project media desktop */
  .project-media {
    height: 200px;
  }
  
  /* Full grid on desktop */
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
  }
}

/* Ultra-wide screen optimizations */
@media (min-width: 1440px) {
  .container {
    max-width: 1400px;
  }
  
  .hero h1 {
    font-size: 42px;
  }
  
  .section-title {
    font-size: 52px;
  }
  
  .project-media {
    height: 220px;
  }
}

/* Performance optimizations for different screen sizes */
@media (max-width: 767px) {
  /* Reduce animations on mobile for better performance */
  .partners-grid {
    will-change: auto;
  }
  
  .hero h1 {
    will-change: auto;
  }
  
  /* Optimize carousel performance */
  .partners-track {
    animation-duration: 25s;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .partners-track {
    animation-duration: 30s;
  }
}

@media (min-width: 1024px) {
  .partners-track {
    animation-duration: 35s;
  }
}

/* Touch-friendly optimizations */
@media (max-width: 767px) {
  /* Larger touch targets */
  .btn {
    min-height: 44px;
    padding: 12px 24px;
  }
  
  .lang-btn {
    min-height: 36px;
    padding: 8px 12px;
  }
  
  /* Improved form inputs */
  .form-group input,
  .form-group textarea {
    min-height: 44px;
    font-size: 16px; /* Prevents zoom on iOS */
  }
}

/* High DPI display optimizations */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .brand-logo {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}

/* Landscape orientation optimizations */
@media (max-width: 767px) and (orientation: landscape) {
  .hero {
    padding: 60px 0 40px;
  }
  
  .hero h1 {
    font-size: 24px;
  }
  
  .section {
    padding: 40px 0;
  }
}
.project .body { 
  padding: 20px 24px 24px; 
}
.project h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--gray-900);
  margin: 0;
}

.form { 
  border: 1px solid rgba(255, 255, 255, 0.2); 
  border-radius: var(--radius); 
  padding: 32px; 
  box-shadow: var(--shadow-lg); 
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
}
.row { display: grid; gap: 16px; }
/* iPhone 15 Pro specific optimizations */
@media screen and (max-width: 393px) and (max-height: 852px) {
  .container {
    padding: 0 12px;
  }
  
  .section {
    padding: 24px 0;
  }
  
  .hero {
    padding: 60px 0 40px;
  }
  
  .hero h1 {
    font-size: 22px;
    line-height: 1.2;
  }
  
  .section-title {
    font-size: 24px;
  }
  
  .card {
    padding: 16px;
  }
  
  .partner-card {
    padding: 20px;
  }
  
  .lang-btn {
    padding: 4px 8px;
    font-size: 11px;
  }
}

/* iPhone 15 Pro Max and larger phones */
@media screen and (min-width: 394px) and (max-width: 767px) {
  .container {
    padding: 0 16px;
  }
  
  .hero h1 {
    font-size: 26px;
  }
  
  .section-title {
    font-size: 30px;
  }
}

/* Form responsive improvements */
@media (min-width: 768px) { 
  .row-2 { 
    grid-template-columns: repeat(2, 1fr); 
  } 
}
label { 
  display: block; 
  font-weight: 600; 
  margin: 0 0 8px; 
  color: var(--gray-900);
  font-size: 14px;
}
input, textarea { 
  width: 100%; 
  padding: 16px; 
  border-radius: var(--radius-sm); 
  border: 1px solid var(--gray-300); 
  font: inherit; 
  background: rgba(255, 255, 255, 0.8);
  transition: all 0.2s ease;
  font-size: 16px;
}
input:focus, textarea:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(4, 53, 79, 0.1);
  background: rgba(255, 255, 255, 1);
}
textarea { 
  resize: vertical; 
  min-height: 120px; 
}
.btn { 
  display: inline-flex; 
  align-items: center; 
  justify-content: center; 
  padding: 16px 32px; 
  border-radius: var(--radius); 
  border: none; 
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-light));
  color: #fff; 
  font-weight: 600; 
  cursor: pointer; 
  transition: all 0.3s ease;
  font-size: 16px;
  box-shadow: var(--shadow);
}
.btn:hover { 
  background: linear-gradient(135deg, var(--brand-primary-dark), var(--brand-primary));
  transform: translateY(-2px); 
  box-shadow: var(--shadow-lg);
}

/* Partners Section */
.partners-container {
  position: relative;
  margin-top: 32px;
  overflow: hidden;
  width: 100%;
}

/* No fade/blur effects */

.partners-grid {
  display: flex;
  gap: 24px;
  padding: 16px 0;
  user-select: none;
  position: relative;
  cursor: grab;
  overflow: hidden;
  will-change: transform;
  width: max-content;
  backface-visibility: hidden;
  perspective: 1000px;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

.partners-grid.dragging {
  cursor: grabbing;
}

/* Continuous sliding animation - seamless loop */
@keyframes slideContinuous {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* Alternative seamless animation using transform3d for better performance */
@keyframes slideSeamless {
  0% {
    transform: translate3d(0, 0, 0);
  }
  100% {
    transform: translate3d(-50%, 0, 0);
  }
}

/* Ultra-smooth seamless animation with better timing */
@keyframes slideUltraSmooth {
  0% {
    transform: translate3d(0, 0, 0);
  }
  100% {
    transform: translate3d(-50%, 0, 0);
  }
}

/* Ensure smooth transitions */
.partners-grid {
  animation-fill-mode: both;
  animation-timing-function: linear;
}

/* Hide scrollbar completely */
.partners-grid::-webkit-scrollbar {
  display: none;
}

.partners-grid {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.partner-card {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
  flex: 0 0 320px;
  min-width: 320px;
  user-select: none;
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}


.partner-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--brand-secondary);
  animation-play-state: paused;
}

@keyframes subtleFloat {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-2px);
  }
}

.partner-logo {
  width: 120px;
  height: 80px;
  margin: 0 auto 24px;
  background: white;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  padding: 8px;
  border: 1px solid var(--gray-200);
}

.partner-logo-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.partner-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 16px;
}

.partner-content {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.partner-content .partner-logo {
  margin-bottom: 24px;
}

.partner-content h3 {
  margin-bottom: 16px;
}

.partner-content p {
  color: var(--gray-600);
  line-height: 1.6;
  margin-bottom: 24px;
  flex-grow: 1;
}

.partner-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--brand-primary);
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
  padding: 12px 24px;
  border: 2px solid var(--brand-primary);
  border-radius: var(--radius-md);
  background: rgba(4, 53, 79, 0.05);
  margin-top: auto;
  align-self: center;
  min-width: 140px;
  justify-content: center;
}

.partner-link:hover {
  background: var(--brand-secondary);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.partner-link::after {
  content: "→";
  transition: transform 0.2s ease;
}

.partner-link:hover::after {
  transform: translateX(4px);
}

/* Contact Info */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 15px;
  line-height: 1.6;
  margin-top: 18px;
  color: var(--gray-700);
}

/* Form Validation Styles */
.form .valid input,
.form .valid textarea {
  border-color: #10b981;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form .invalid input,
.form .invalid textarea {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.error-message {
  color: #ef4444;
  font-size: 14px;
  margin-top: 4px;
  display: block;
}

/* Notification styles */
.notification {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 16px 24px;
  border-radius: 8px;
  color: white;
  font-weight: 500;
  z-index: 1000;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  max-width: 400px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.notification.show {
  transform: translateX(0);
}

.notification-success {
  background: linear-gradient(135deg, #10b981, #059669);
}

.notification-error {
  background: linear-gradient(135deg, #ef4444, #dc2626);
}

.notification-info {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.error-message {
  color: #ef4444;
  font-size: 14px;
  margin-top: 4px;
  display: block;
}

/* Notification Styles */
.notification {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 16px 24px;
  border-radius: var(--radius-md);
  color: white;
  font-weight: 500;
  z-index: 1000;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}

.notification.show {
  transform: translateX(0);
}

.notification-success {
  background: #10b981;
}

.notification-error {
  background: #ef4444;
}

.notification-info {
  background: var(--brand-primary);
}

/* Scroll to Top Button */
.scroll-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--brand-primary);
  color: white;
  border: none;
  font-size: 20px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
  box-shadow: var(--shadow-lg);
}

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

.scroll-to-top:hover {
  background: var(--brand-secondary);
  transform: translateY(-2px);
}

/* Error Banner */
.error-banner {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #dc2626;
  padding: 16px;
  text-align: center;
  position: relative;
  z-index: 1001;
}

.error-banner button {
  background: #dc2626;
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  margin-left: 12px;
  cursor: pointer;
}

.reveal { 
  opacity: 0; 
  transform: translateY(20px); 
  transition: all 600ms cubic-bezier(0.4, 0, 0.2, 1); 
}
.reveal.show { 
  opacity: 1; 
  transform: translateY(0); 
}

.footer { 
  border-top: 1px solid rgba(255, 255, 255, 0.2); 
  color: var(--gray-700); 
  font-size: 14px; 
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(10px);
}
.footer small { color: var(--gray-500); }

@keyframes fadeUp { 
  from { 
    opacity: 0; 
    transform: translateY(20px); 
  } 
  to { 
    opacity: 1; 
    transform: translateY(0); 
  } 
}
@keyframes fadeIn { 
  from { opacity: 0; } 
  to { opacity: 1; } 
}

/* Modern scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--gray-100);
}
::-webkit-scrollbar-thumb {
  background: var(--gray-400);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--gray-500);
}




/* Infinite loop optimizations */
.partners-swiper .swiper-wrapper {
  transition-timing-function: linear !important;
  will-change: transform !important;
}

/* Ensure smooth infinite scrolling */
.partners-swiper .swiper-slide {
  transition: none !important;
  animation: none !important;
}

/* Hide any potential jump indicators */
.partners-swiper .swiper-pagination,
.partners-swiper .swiper-button-next,
.partners-swiper .swiper-button-prev {
  display: none !important;
}


/* Pure CSS Infinite Loop Carousel */
.partners-carousel {
  margin-top: 32px;
  padding: 16px 0;
  overflow: hidden;
  width: 100%;
  position: relative;
  contain: layout style paint;
  isolation: isolate;
}

.partners-track {
  display: flex;
  animation: infiniteScroll 30s linear infinite;
  width: max-content;
  gap: 24px;
  will-change: transform;
}

/* Optimize animation speed for different screen sizes */
@media (max-width: 479px) {
  .partners-track {
    animation-duration: 25s; /* Faster for small screens */
  }
}

@media (min-width: 480px) and (max-width: 767px) {
  .partners-track {
    animation-duration: 28s; /* Slightly faster for mobile */
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .partners-track {
    animation-duration: 30s; /* Standard speed for tablets */
  }
}

@media (min-width: 1024px) {
  .partners-track {
    animation-duration: 35s; /* Slower for desktop for better readability */
  }
}

@media (min-width: 1440px) {
  .partners-track {
    animation-duration: 40s; /* Even slower for large screens */
  }
}

.partners-carousel:hover .partners-track {
  animation-play-state: paused;
}

/* Pure CSS infinite scroll animation */
@keyframes infiniteScroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* Accessibility: Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .partners-track {
    animation: none;
  }
  
  .partners-carousel:hover .partners-track {
    animation-play-state: running;
  }
}

/* Language-specific carousel visibility */
.partners-carousel[data-lang="vi"] {
  display: block;
}

.partners-carousel[data-lang="en"] {
  display: none;
}

.partners-carousel[data-lang="vi"].hidden {
  display: none !important;
}

.partners-carousel[data-lang="en"].visible {
  display: block !important;
}

/* Partner cards in carousel */
.partners-carousel .partner-card {
  flex: 0 0 auto;
  width: 320px;
  min-width: 320px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(4, 53, 79, 0.1);
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.2);
  margin: 0 12px;
  will-change: transform;
}

.partners-carousel .partner-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(4, 53, 79, 0.15);
  border: 2px solid var(--brand-secondary);
  outline: none;
}

.partners-carousel .partner-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.partners-carousel .partner-logo {
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 8px;
  padding: 8px;
  margin-top: -5px;
}

.partners-carousel .partner-logo-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.partners-carousel .partner-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--gray-800);
  margin: 0;
  max-width: 100%;
  height: auto;
  min-height: 50px;
  max-height: 80px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px 4px;
  box-sizing: border-box;
}


/* Blur and fade effects only on content area */
.partners-carousel {
  position: relative;
}

.partners-carousel::before,
.partners-carousel::after {
  content: '';
  position: absolute;
  top: 16px; /* Match carousel padding */
  bottom: 16px; /* Match carousel padding */
  width: 20px;
  z-index: 10;
  pointer-events: none;
  backdrop-filter: blur(3px);
}

.partners-carousel::before {
  left: 0;
  background: linear-gradient(to right, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 0.3), transparent);
}

.partners-carousel::after {
  right: 0;
  background: linear-gradient(to left, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 0.3), transparent);
}

/* Responsive optimizations */
/* Mobile First - Small screens (320px - 479px) */
@media (max-width: 479px) {
  .partners-carousel {
    margin-top: 24px;
    padding: 12px 0;
    touch-action: pan-x; /* Allow horizontal scrolling on touch */
  }
  
  .partners-carousel::before,
  .partners-carousel::after {
    width: 12px;
    top: 12px; /* Match mobile padding */
    bottom: 12px;
  }
  
  .partners-carousel .partner-card {
    width: 240px;
    min-width: 240px;
    padding: 16px;
    margin: 0 8px;
  }
  
  .partners-carousel .partner-logo {
    width: 80px;
    height: 80px;
  }
  
  .partners-carousel .partner-card h3 {
    font-size: 16px;
    min-height: 40px;
    max-height: 60px;
  }
  
  .partners-track {
    gap: 12px;
  }
}

/* Mobile - Medium screens (480px - 767px) */
@media (min-width: 480px) and (max-width: 767px) {
  .partners-carousel {
    margin-top: 28px;
    padding: 14px 0;
  }
  
  .partners-carousel::before,
  .partners-carousel::after {
    width: 16px;
    top: 14px; /* Match medium mobile padding */
    bottom: 14px;
  }
  
  .partners-carousel .partner-card {
    width: 260px;
    min-width: 260px;
    padding: 18px;
    margin: 0 10px;
  }
  
  .partners-carousel .partner-logo {
    width: 90px;
    height: 90px;
  }
  
  .partners-carousel .partner-card h3 {
    font-size: 17px;
    min-height: 45px;
    max-height: 65px;
  }
  
  .partners-track {
    gap: 14px;
  }
}

/* Tablet - Small screens (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
  .partners-carousel {
    margin-top: 30px;
    padding: 15px 0;
  }
  
  .partners-carousel::before,
  .partners-carousel::after {
    width: 18px;
    top: 15px; /* Match tablet padding */
    bottom: 15px;
  }
  
  .partners-carousel .partner-card {
    width: 300px;
    min-width: 300px;
    padding: 22px;
    margin: 0 12px;
  }
  
  .partners-carousel .partner-logo {
    width: 100px;
    height: 100px;
  }
  
  .partners-carousel .partner-card h3 {
    font-size: 18px;
    min-height: 50px;
    max-height: 70px;
  }
  
  .partners-track {
    gap: 20px;
  }
}

/* Desktop - Large screens (1024px - 1439px) */
@media (min-width: 1024px) and (max-width: 1439px) {
  .partners-carousel {
    margin-top: 32px;
    padding: 16px 0;
  }
  
  .partners-carousel .partner-card {
    width: 320px;
    min-width: 320px;
    padding: 24px;
    margin: 0 12px;
  }
  
  .partners-carousel .partner-logo {
    width: 100px;
    height: 100px;
  }
  
  .partners-carousel .partner-card h3 {
    font-size: 18px;
    min-height: 50px;
    max-height: 80px;
  }
  
  .partners-track {
    gap: 24px;
  }
}

/* Desktop - Extra large screens (1440px+) */
@media (min-width: 1440px) {
  .partners-carousel {
    margin-top: 36px;
    padding: 18px 0;
  }
  
  .partners-carousel .partner-card {
    width: 340px;
    min-width: 340px;
    padding: 26px;
    margin: 0 14px;
  }
  
  .partners-carousel .partner-logo {
    width: 110px;
    height: 110px;
  }
  
  .partners-carousel .partner-card h3 {
    font-size: 19px;
    min-height: 55px;
    max-height: 85px;
  }
  
  .partners-track {
    gap: 26px;
  }
}

/* Ultra-wide screens (1920px+) */
@media (min-width: 1920px) {
  .partners-carousel {
    margin-top: 40px;
    padding: 20px 0;
  }
  
  .partners-carousel .partner-card {
    width: 360px;
    min-width: 360px;
    padding: 28px;
    margin: 0 16px;
  }
  
  .partners-carousel .partner-logo {
    width: 120px;
    height: 120px;
  }
  
  .partners-carousel .partner-card h3 {
    font-size: 20px;
    min-height: 60px;
    max-height: 90px;
  }
  
  .partners-track {
    gap: 28px;
  }
}