:root {
  /* Light Theme Variables (Default) */
  --primary-color: #1e3a8a;
  --accent-color: #fbbf24;
  --text-color: #1e293b;
  --secondary-color: #475569;
  --bg-color: #ffffff;
  --card-bg: #ffffff;
  --card-bg-hover: #f8fafc;
  --border-color: #e2e8f0;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --header-bg: rgba(255, 255, 255, 0.1);
  --logo-color: #1e3a8a;
}

/* Smooth page transitions */
.main-content {
  opacity: 0;
  animation: fadeIn 0.6s ease-out forwards;
}

.header {
  opacity: 0;
  animation: slideDown 0.5s ease-out forwards;
}

.footer {
  opacity: 0;
  animation: fadeIn 0.6s ease-out forwards;
}

/* Stagger child animations */
.nav-links li {
  opacity: 0;
  animation: slideIn 0.4s ease-out forwards;
}

.nav-links li:nth-child(1) { animation-delay: 0.1s; }
.nav-links li:nth-child(2) { animation-delay: 0.2s; }
.nav-links li:nth-child(3) { animation-delay: 0.3s; }
.nav-links li:nth-child(4) { animation-delay: 0.4s; }
.nav-links li:nth-child(5) { animation-delay: 0.5s; }

/* Animation keyframes */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

/* Page transition states */
body {
  opacity: 1;
  transition: opacity 0.3s ease-out;
}

body.page-exit {
  opacity: 0;
}

/* Content animations */
.animate-content .main-content > * {
  opacity: 0;
  transform: translateY(20px);
  animation: contentFadeIn 0.6s ease-out forwards;
}

.animate-content .main-content > *:nth-child(1) { animation-delay: 0.1s; }
.animate-content .main-content > *:nth-child(2) { animation-delay: 0.2s; }
.animate-content .main-content > *:nth-child(3) { animation-delay: 0.3s; }
.animate-content .main-content > *:nth-child(4) { animation-delay: 0.4s; }
.animate-content .main-content > *:nth-child(5) { animation-delay: 0.5s; }

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

/* Scroll animations */
.fade-in {
  opacity: 0;
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.slide-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.slide-in {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-in {
  opacity: 1;
  transform: translate(0, 0);
}

/* Prevent white flash during page transitions */
html, body {
  background-color: var(--bg-color);
  transition: background-color 0.3s ease;
}

html.no-transition,
html.no-transition * {
  transition: none !important;
}

[data-theme="dark"] {
  /* Dark Theme Variables */
  --primary-color: #3b82f6;
  --accent-color: #fbbf24;
  --text-color: #f8fafc;
  --secondary-color: #94a3b8;
  --bg-color: #0f172a;
  --card-bg: #1e293b;
  --card-bg-hover: #334155;
  --border-color: #334155;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
  --header-bg: rgba(15, 23, 42, 0.1);
  --logo-color: #3b82f6;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header */
.header {
  background: var(--header-bg);
  border-bottom: 1px solid var(--border-color);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: all 0.3s ease;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
}

[data-theme="dark"] .header {
  background: rgba(15, 23, 42, 0.1);
  border-bottom: 1px solid rgba(51, 65, 85, 0.3);
}

/* Add a pseudo-element for additional background control */
.header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: inherit;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  z-index: -1;
}

[data-theme="dark"] .header::before {
  background: rgba(15, 23, 42, 0.1);
}

/* Ensure header stays consistent on scroll */
.header.scrolled {
  background: var(--header-bg);
}

[data-theme="dark"] .header.scrolled {
  background: rgba(15, 23, 42, 0.1) !important;
}

[data-theme="dark"] .header.scrolled::before {
  background: rgba(15, 23, 42, 0.1);
}

/* Force dark theme header to stay dark */
@media (prefers-color-scheme: dark) {
  [data-theme="dark"] .header,
  [data-theme="dark"] .header::before,
  [data-theme="dark"] .header.scrolled,
  [data-theme="dark"] .header.scrolled::before {
    background: rgba(15, 23, 42, 0.1) !important;
  }
}

/* Add scroll event listener */
body {
  overflow-x: hidden;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  position: relative;
  z-index: 1001;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--logo-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: var(--primary-color);
}

.nav-links a.active {
  color: var(--primary-color);
  font-weight: 600;
}

[data-theme="dark"] .nav-links a.active {
  color: #3b82f6;
}

[data-theme="dark"] .nav-links a:hover {
  color: #3b82f6;
}

.theme-toggle {
  background: none;
  border: none;
  color: var(--text-color);
  cursor: pointer;
  padding: 0.5rem;
  font-size: 1.2rem;
  transition: color 0.3s ease;
}

.theme-toggle:hover {
  color: var(--accent-color);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.mobile-menu span {
  width: 25px;
  height: 3px;
  background: var(--text-color);
  margin: 3px 0;
  transition: 0.3s;
}

/* Main Content */
.main-content {
  margin-top: 80px;
}

/* Features Section */
.features-section {
  background-color: var(--background-color);
  padding: 60px 0;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  background-color: var(--card-bg);
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.feature-card:hover {
  background-color: var(--card-bg-hover);
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
  border-color: var(--accent-color);
}

.feature-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 1rem;
}

.feature-card h3 {
  color: var(--text-color);
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.feature-card p {
  color: var(--secondary-color);
  line-height: 1.6;
}

.custom-icon {
  width: 2.5rem;
  height: 2.5rem;
  color: var(--logo-color);
  transition: color 0.3s ease;
}

.feature-icon .custom-icon {
  width: 3rem;
  height: 3rem;
}

.mission-icon .custom-icon,
.vision-icon .custom-icon {
  width: 3.5rem;
  height: 3.5rem;
}

[data-theme="dark"] .custom-icon {
  color: var(--logo-color);
}

.feature-card:hover .custom-icon,
.mission-card:hover .custom-icon,
.vision-card:hover .custom-icon {
  color: var(--logo-color);
  transform: scale(1.1);
}

[data-theme="dark"] .feature-card:hover .custom-icon,
[data-theme="dark"] .mission-card:hover .custom-icon,
[data-theme="dark"] .vision-card:hover .custom-icon {
  color: var(--logo-color);
  transform: scale(1.1);
}

/* CTA Section */
.cta-section {
  background: var(--gradient);
  color: white;
  text-align: center;
  padding: 60px 0;
  margin: 40px 0;
}

.cta-section h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: white;
}

.cta-section p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.cta-button {
  display: inline-block;
  background: var(--accent-color);
  color: #1e293b;
  padding: 1rem 2rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  margin: 0 0.5rem;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(251, 191, 36, 0.3);
}

.cta-button.secondary {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.cta-button.secondary:hover {
  background: white;
  color: var(--primary-color);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 2rem 0;
}

/* Why Choose Grid */
.why-choose-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

/* Additional Benefits */
.additional-benefits {
  margin: 4rem 0;
}

.benefits-list {
  max-width: 800px;
  margin: 0 auto;
}

.benefit-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: var(--card-bg);
  border-radius: 10px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.benefit-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.benefit-icon {
  font-size: 1.5rem;
  color: var(--accent-color);
  flex-shrink: 0;
  width: 50px;
}

.benefit-icon i {
  color: #007bff; /* Professional blue color */
  font-size: 24px;
}

.benefit-content h4 {
  color: var(--text-color);
  margin-bottom: 0.5rem;
}

.benefit-content p {
  color: var(--secondary-color);
}

/* Footer */
.footer {
  background-color: var(--card-bg);
  padding: 3rem 0 1rem;
  margin-top: 4rem;
  border-top: 1px solid var(--border-color);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  color: var(--logo-color);
  margin-bottom: 1rem;
  font-weight: 600;
  transition: color 0.3s ease;
}

.footer-section p {
  color: var(--secondary-color);
  margin: 0.5rem 0;
}

.footer-section a {
  color: var(--text-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: var(--logo-color);
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-links a {
  color: var(--secondary-color);
  font-size: 1.2rem;
  transition: color 0.3s ease;
}

.social-links a:hover {
  color: var(--primary-color);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--secondary-color);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--text-color);
}

.section-subtitle {
  font-size: 1.2rem;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--secondary-color);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  animation: fadeInUp 0.8s ease-out forwards;
}

/* Responsive Design */
@media (max-width: 1200px) {
  .container {
    max-width: 960px;
  }
  
  .section-title {
    font-size: 2.2rem;
  }
}

@media (max-width: 992px) {
  .container {
    max-width: 720px;
  }
  
  .features {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .why-choose-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .container {
    max-width: 540px;
  }
  
  .nav-links {
    display: none;
  }
  
  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--card-bg);
    padding: 1rem;
    box-shadow: var(--shadow);
    gap: 1rem;
  }
  
  .mobile-menu {
    display: flex;
  }

  .features {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .why-choose-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .cta-button {
    width: 100%;
    max-width: 300px;
    margin: 0.5rem 0;
    text-align: center;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .benefit-item {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .section-subtitle {
    font-size: 1.1rem;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 1.25rem;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .feature-card {
    padding: 1.5rem;
  }
  
  .benefit-item {
    padding: 1.25rem;
  }
  
  .section-title {
    font-size: 1.8rem;
    margin-bottom: 2rem;
  }
  
  .footer {
    padding: 2rem 0 1rem;
  }
  
  .social-links {
    justify-content: center;
  }
}

/* Touch Device Optimizations */
@media (hover: none) {
  .feature-card:hover,
  .benefit-item:hover,
  .cta-button:hover {
    transform: none;
  }
}

/* High Resolution Screens */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .hero,
  .main-content {
    background-size: cover;
  }
}

/* Ensure minimum touch target size for mobile */
@media (max-width: 768px) {
  .nav-links a,
  .cta-button,
  .theme-toggle,
  .social-links a {
    min-height: 44px;
    min-width: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
}

/* Prevent text from becoming too small on very small devices */
@media (max-width: 320px) {
  html {
    font-size: 14px;
  }
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

/* Mission and Vision */
.mission-vision {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.mission-card,
.vision-card {
  background-color: var(--card-bg);
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.mission-card:hover,
.vision-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
  border-color: var(--logo-color);
  background-color: var(--card-bg-hover);
}

.mission-icon,
.vision-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--logo-color);
}

.mission-card h3,
.vision-card h3 {
  color: var(--logo-color);
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.mission-card p,
.vision-card p {
  color: var(--text-color);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .mission-vision {
    grid-template-columns: 1fr;
  }
  
  .mission-card,
  .vision-card {
    padding: 1.5rem;
  }
  
  .mission-card h3,
  .vision-card h3 {
    font-size: 1.3rem;
  }
}