:root {
  --neutral-100: #f8f8f8;
  --neutral-200: #e8e8e8;
  --neutral-300: #d0d0d0;
  --neutral-400: #a8a8a8;
  --neutral-500: #787878;
  --neutral-600: #505050;
  --neutral-700: #383838;
  --neutral-800: #282828;
  --neutral-900: #1a1a1a;
}

* {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--neutral-800);
  background: var(--neutral-100);
  margin: 0;
  padding: 0;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.image-hover {
  overflow: hidden;
  transition: transform 0.3s ease;
}

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

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

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

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

.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-size: cover;
  background-position: center;
  position: relative;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
}

.hero-content {
  position: relative;
  color: white;
  padding: 2rem;
}

.card {
  background: white;
  border-radius: 4px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.3s ease;
}

.card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.text-center { text-align: center; }
.text-large { font-size: 2rem; }
.text-small { font-size: 0.875rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

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

.nav-sticky {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
}

@media (max-width: 768px) {
  .grid-layout {
    grid-template-columns: 1fr;
  }
  
  .hero-content {
    padding: 1rem;
  }
  
  .text-large {
    font-size: 1.5rem;
  }
}