@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

body {
    font-family: 'Inter', sans-serif;
}

/* Smooth scrolling for anchor links */
html {
    scroll-behavior: smooth;
}
/* Expandable content animations */
.expandable-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, opacity 0.3s ease;
    opacity: 0;
}

.expandable-content.active {
    max-height: 500px;
    opacity: 1;
}

/* Button hover effects */
.btn-hover-effect {
    transition: all 0.3s ease;
    transform: translateY(0);
}

.btn-hover-effect:hover {
    transform: translateY(-2px);
}

/* Card hover effects */
.card-hover {
    transition: all 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Research section animations */
.research-card {
    transition: all 0.3s ease;
    transform: translateY(0);
}

.research-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}
/* Gradient backgrounds */
.gradient-card {
    background: linear-gradient(135deg, var(--gradient-from), var(--gradient-to));
    transition: all 0.3s ease;
}

.gradient-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
}

/* Custom animation for cards */
.card-hover {
    transition: all 0.3s ease;
}

.card-hover:hover {
transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Gradient text */
.gradient-text {
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    background-image: linear-gradient(to right, #1e40af, #3b82f6);
}

/* Custom button styles */
.btn-primary {
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
}