/* Animations for Scientific Work Page */

/* Fade in animation for sections */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scale animation for cards on hover */
@keyframes scaleUp {
    to {
        transform: translateY(-5px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
    }
}

/* Apply animations to sections */
.scientific-work-section {
    opacity: 1; /* Start visible */
    animation: fadeIn 0.8s ease-out forwards;
}

/* Stagger the animations for each section */
.scientific-work-section:nth-child(1) { animation-delay: 0.1s; }
.scientific-work-section:nth-child(2) { animation-delay: 0.3s; }
.scientific-work-section:nth-child(3) { animation-delay: 0.5s; }
.scientific-work-section:nth-child(4) { animation-delay: 0.7s; }
.scientific-work-section:nth-child(5) { animation-delay: 0.9s; }
.scientific-work-section:nth-child(6) { animation-delay: 1.1s; }

/* Header animation */
.scientific-work-header {
    opacity: 1; /* Start visible */
    animation: fadeIn 0.6s ease-out forwards;
}

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

.scientific-material-card:hover {
    animation: scaleUp 0.3s ease-out forwards;
}

/* Image hover effect */
.scientific-material-image {
    overflow: hidden;
}

.scientific-material-image img {
    transition: transform 0.5s ease;
}

.scientific-material-card:hover .scientific-material-image img {
    transform: scale(1.05);
}

/* Download button animation */
.download-btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.download-btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: all 0.4s ease;
}

.download-btn:hover:before {
    left: 100%;
}

.download-btn:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
}

/* Add a reveal animation for card content */
.scientific-material-info {
    transition: all 0.3s ease;
}

.scientific-material-card:hover .scientific-material-info {
    transform: translateY(-5px);
}

/* Add animation for section titles */
.scientific-work-subtitle {
    position: relative;
    display: block;
    text-align: center;
    width: 100%;
    margin-bottom: 20px;
}

.scientific-work-subtitle:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #007bff;
    transition: width 0.4s ease;
}

.scientific-work-section:hover .scientific-work-subtitle:after {
    width: 100%;
}

/* Add animation for section descriptions */
.scientific-work-description {
    opacity: 1; /* Start visible */
    animation: fadeIn 1s ease-out 0.5s forwards;
    text-align: center;
    margin: 0 auto 30px;
    max-width: 90%;
}

/* Add scroll reveal animations using Intersection Observer API */
.reveal {
    opacity: 1; /* Start visible */
    transform: translateY(0); /* Start in final position */
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}