/* CSS Variables - Matching React Theme */
:root {
  --background: 0 0% 100%;
  --foreground: 222.2 84% 4.9%;
  --card: 0 0% 100%;
  --card-foreground: 222.2 84% 4.9%;
  --primary: 222.2 47.4% 11.2%;
  --primary-foreground: 210 40% 98%;
  --secondary: 210 40% 96%;
  --secondary-foreground: 222.2 84% 4.9%;
  --muted: 210 40% 96%;
  --muted-foreground: 215.4 16.3% 46.9%;
  --accent: 210 40% 98%;
  --accent-foreground: 222.2 84% 4.9%;
  --border: 214.3 31.8% 91.4%;
  --subtle: 210 40% 98%;
}

/* Dark mode */
.dark {
  --background: 222.2 84% 4.9%;
  --foreground: 210 40% 98%;
  --card: 222.2 84% 4.9%;
  --card-foreground: 210 40% 98%;
  --primary: 210 40% 98%;
  --primary-foreground: 222.2 47.4% 11.2%;
  --secondary: 217.2 32.6% 17.5%;
  --secondary-foreground: 210 40% 98%;
  --muted: 217.2 32.6% 17.5%;
  --muted-foreground: 215 20.2% 65.1%;
  --accent: 217.2 32.6% 17.5%;
  --accent-foreground: 210 40% 98%;
  --border: 217.2 32.6% 17.5%;
  --subtle: 217.2 32.6% 17.5%;
}

/* Typography Classes */
.text-heading-1 {
  font-size: 2.25rem;
  font-weight: 600;
  line-height: 1.2;
}

.text-heading-2 {
  font-size: 1.875rem;
  font-weight: 600;
  line-height: 1.3;
}

.text-heading-3 {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
}

.text-body-large {
  font-size: 1.125rem;
  line-height: 1.6;
}

.text-display {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.1;
}

@media (min-width: 768px) {
  .text-heading-1 {
    font-size: 3rem;
  }
  .text-heading-2 {
    font-size: 2.25rem;
  }
  .text-display {
    font-size: 4rem;
  }
}

@media (min-width: 1024px) {
  .text-heading-1 {
    font-size: 3.75rem;
  }
  .text-display {
    font-size: 5rem;
  }
}

/* Layout Classes */
.section-padding {
  padding: 4rem 0;
}

.container-padding {
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 640px) {
  .container-padding {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container-padding {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

/* Card Components */
.card-elevated {
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: 0.75rem;
  box-shadow:
    0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}

.card-elevated:hover {
  box-shadow:
    0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Button Components */
.btn-primary {
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-primary:hover {
  background: hsl(var(--primary) / 0.9);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: hsl(var(--primary));
  border: 1px solid hsl(var(--border));
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-outline:hover {
  background: hsl(var(--accent));
  border-color: hsl(var(--primary));
}

/* Form Components */
.form-input {
  background: hsl(var(--background));
  border: 1px solid hsl(var(--border));
  color: hsl(var(--foreground));
  transition: all 0.2s ease;
}

.form-input:focus {
  outline: none;
  ring: 2px;
  ring-color: hsl(var(--primary));
  border-color: transparent;
}

/* Navigation */
.nav-link {
  color: hsl(var(--muted-foreground));
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  transition: all 0.2s ease;
  font-weight: 500;
}

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

.mobile-nav-link {
  display: block;
  color: hsl(var(--muted-foreground));
  text-decoration: none;
  padding: 0.75rem 1rem;
  border-radius: 0.375rem;
  transition: all 0.2s ease;
  font-weight: 500;
}

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

.mobile-menu-btn {
  color: hsl(var(--muted-foreground));
  padding: 0.5rem;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: 0.375rem;
  transition: all 0.2s ease;
}

.mobile-menu-btn:hover {
  background: hsl(var(--accent));
}

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

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

@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);
  }
}

.animate-fade-in {
  animation: fadeIn 0.8s ease-out;
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s ease-out;
}

.animate-fade-in-left {
  animation: fadeInLeft 0.8s ease-out;
}

.animate-fade-in-right {
  animation: fadeInRight 0.8s ease-out;
}

/* Animation Delays */
.animation-delay-100 {
  animation-delay: 0.1s;
}
.animation-delay-200 {
  animation-delay: 0.2s;
}
.animation-delay-300 {
  animation-delay: 0.3s;
}
.animation-delay-400 {
  animation-delay: 0.4s;
}
.animation-delay-2000 {
  animation-delay: 2s;
}

/* Responsive Video */
video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Image Optimization */
img {
  max-width: 100%;
  height: auto;
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Focus styles for accessibility */
*:focus {
  outline: 2px solid hsl(var(--primary));
  outline-offset: 2px;
}

/* Loading states */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

/* Intersection Observer classes for scroll animations */
.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.scroll-animate.animate {
  opacity: 1;
  transform: translateY(0);
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: hsl(var(--muted));
}

::-webkit-scrollbar-thumb {
  background: hsl(var(--muted-foreground));
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: hsl(var(--primary));
}