/* Research page styles */

/* Research project cards */
.research-project {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 60px;
    background-color: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

@media (min-width: 768px) {
    .research-project {
        grid-template-columns: 1fr 1fr;
    }
}

/* Updated image container for before/after effect */
.research-image {
    height: 300px;
    background-color: var(--darker-bg);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

/* Before/After Image Transition */
.research-image-before,
.research-image-after {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: opacity 0.5s ease-in-out, transform 1s ease-in-out;
}

/* Gradient overlay for both images */
.research-image-before::before,
.research-image-after::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.3), rgba(0,0,0,0.2));
    z-index: 1;
}

.research-image-before {
    opacity: 1;
    transform: scale(1);
}

.research-image-after {
    opacity: 0;
    transform: scale(1.05);
}

.research-image:hover .research-image-before {
    opacity: 0;
}

.research-image:hover .research-image-after {
    opacity: 1;
    transform: scale(1);
}

/* Label for the images */
.image-label {
    position: absolute;
    bottom: 15px;
    left: 15px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    z-index: 2;
    transition: opacity 0.3s ease;
    font-weight: 500;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.before-label {
    opacity: 1;
}

.after-label {
    opacity: 0;
}

.research-image:hover .before-label {
    opacity: 0;
}

.research-image:hover .after-label {
    opacity: 1;
}

.research-content {
    padding: 30px;
}

.research-content h3 {
    color: var(--text);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.research-project:nth-child(even) .research-image {
    order: 2;
}

.research-project:nth-child(even) .research-content {
    order: 1;
}

/* Add a subtle transition indicator */
.transition-indicator {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: rgba(0, 115, 187, 0.8);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    opacity: 0.8;
    z-index: 2;
}

.transition-indicator:after {
    content: "Hover to see results";
}


/* Animation for the transition indicator */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.research-image:hover .transition-indicator {
    animation: pulse 1.5s infinite;
    background-color: rgba(0, 150, 136, 0.8);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .research-project {
        grid-template-columns: 1fr;
    }

    .research-project:nth-child(even) .research-image {
        order: 1;
    }

    .research-project:nth-child(even) .research-content {
        order: 2;
    }

    .transition-indicator {
        display: none;
    }

    .image-label {
        font-size: 0.7rem;
        padding: 4px 8px;
    }
}

.loading-indicator {
    text-align: center;
    padding: 30px;
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

/* Error message */
.error-message {
    padding: 30px;
    background-color: rgba(255, 235, 235, 0.7);
    border-radius: 8px;
    border-left: 4px solid #e74c3c;
    margin-bottom: 30px;
}

.error-message h3 {
    color: #c0392b;
    margin-bottom: 10px;
}