body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f8f9fa;
  margin: 0;
  padding: 0;
}

/* Header */
.pub-header {
  background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.2)), url('../images/n.jpg') center/cover no-repeat;
  color: #fff;
  padding: 140px 20px 80px;
  position: relative;
}
.pub-header h1 {
  font-size: 3rem;
  font-weight: 700;
}
.pub-header p {
  font-size: 1.2rem;
  margin-bottom: 20px;
}
.pub-logo {
  width: 150px;
  display: block;
  margin: 0 auto;
  animation: float 3s ease-in-out infinite;
}

/* Floating animation for GIF */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
/* Publication Cards */
.pub-card {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.pub-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}
.pub-text {
  font-size: 1rem;
  color: #333;
  line-height: 1.7;
}

/* Responsive */
@media (max-width: 768px) {
  .pub-text {
    font-size: 0.95rem;
  }
}