/* General Styles */
body {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #ffffff;
  color: #333333;
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation */
header {
  background-color: #222222;
  color: #ffffff;
  padding: 15px 0;
}
nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  margin: 0;
  padding: 0;
}
nav ul li {
  margin: 0 20px;
}
nav ul li a {
  color: #ffffff;
  text-decoration: none;
  font-size: 1rem;
  transition: color 0.3s ease;
}
nav ul li a:hover {
  color: #f0a500;
}

/* Hero Section */
#hero {
  background: url('hero-bg.jpg') no-repeat center center/cover;
  color: #222;
  padding: 120px 0;
  text-align: center;
}

#hero h1 {
  font-size: 3rem;
  margin-bottom: 10px;
}
#hero p {
  font-size: 1.5rem;
}

/* Section Styles */
.section {
  padding: 60px 0;
}
.section h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
  text-align: center;
}
.section p {
  font-size: 1.1rem;
  line-height: 1.8;
  text-align: center;
  margin-bottom: 20px;
}

/* Publications & Projects Card Styles */
.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}
.card {
  background: #f9f9f9;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 20px;
  width: 300px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.card h3 {
  margin-top: 0;
}
.card p {
  font-size: 1rem;
  margin: 15px 0;
}
.card .links {
  margin-top: 15px;
}
.card .links a {
  text-decoration: none;
  color: #f0a500;
  margin-right: 15px;
  transition: color 0.3s ease;
}
.card .links a:hover {
  color: #d18e00;
}

/* Footer */
footer {
  background-color: #222222;
  color: #ffffff;
  padding: 20px 0;
  text-align: center;
  font-size: 0.9rem;
}