/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Hero Canvas */
#hero-canvas {
  width: 100%;
  height: 100%;
}

/* Smooth Scroll Animations */
.hero-title,
.hero-subtitle,
.hero-cta {
  animation: fadeInUp 1s ease-out forwards;
}

.hero-title {
  animation-delay: 0.2s;
}

.hero-subtitle {
  animation-delay: 0.4s;
}

.hero-cta {
  animation-delay: 0.6s;
}

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

/* Blueprint Cards Hover Effect */
.blueprint-card {
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.blueprint-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 60px rgba(59, 130, 246, 0.3);
}

/* Lecture Cards */
.lecture-card {
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.lecture-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.lecture-card:hover::before {
  left: 100%;
}

.lecture-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Gradient Text */
.gradient-text {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: #888;
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* Glassmorphism Effect */
.glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Smooth Transitions */
a, button {
  transition: all 0.3s ease;
}

/* Responsive Typography */
@media (max-width: 768px) {
  .hero-title {
    font-size: 3rem;
  }
  
  .hero-subtitle {
    font-size: 1.5rem;
  }
}

/* Loading Animation */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Parallax Effect */
.parallax {
  transition: transform 0.3s ease-out;
}

/* Button Hover Effects */
button {
  position: relative;
  overflow: hidden;
}

button::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

button:hover::after {
  width: 300px;
  height: 300px;
}

/* Text Selection */
::selection {
  background: #667eea;
  color: white;
}

::-moz-selection {
  background: #667eea;
  color: white;
}

/* Fade In Sections */
section {
  opacity: 0;
  animation: sectionFadeIn 0.8s ease-out forwards;
}

@keyframes sectionFadeIn {
  to {
    opacity: 1;
  }
}

/* 3D Card Effect */
.card-3d {
  transform-style: preserve-3d;
  transition: transform 0.6s;
}

.card-3d:hover {
  transform: rotateY(5deg) rotateX(5deg);
}