:root {
  font-family: 'Inter', system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;
  color-scheme: dark light;
  color: rgba(255, 255, 255, 0.87);
  background-color: #0a0a0c;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
}

#root {
  width: 100%;
  margin: 0 auto;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Hero Section */
.hero {
  height: 80vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  background: radial-gradient(circle at center, #1a1a2e 0%, #0a0a0c 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(100, 108, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(100, 108, 255, 0.1) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}

.hero h1 {
  font-size: 4rem;
  margin-bottom: 1rem;
  background: linear-gradient(to right, #646cff, #42b883);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: fadeIn 1.5s ease-out;
}

.hero p {
  font-size: 1.5rem;
  color: #a0a0a0;
  max-width: 800px;
  animation: fadeIn 2s ease-out;
}

/* About Section */
.section {
  padding: 6rem 0;
}

.section h2 {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 3rem;
  color: #646cff;
}

.about-content {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #ccc;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

/* Research Areas */
.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.research-card {
  background: #16161a;
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid #333;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.research-card:hover {
  transform: translateY(-10px);
  border-color: #646cff;
}

.research-card .icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}

.research-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #fff;
}

.research-card p {
  color: #999;
}

/* Footer */
footer {
  padding: 4rem 0;
  background: #050505;
  text-align: center;
  border-top: 1px solid #222;
}

.footer-content {
  color: #666;
}

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

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  .hero p {
    font-size: 1.1rem;
  }
}