body{
    background: #f1f5f9;
    margin: 0;
}

.comparison-container{
    display: flex;
    flex-direction: column;
    width: 100%;
    min-height: 100vh;
    transition: flex-direction 0.4s ease-in-out;
}

.comparison-container.side-by-side {
    flex-direction: row;
}

.pane{
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    transition: background-color 0.8s ease, padding 0.5s ease;
}

.stacked .ai-pane{
    background-color: #f1f5f9;
}

.stacked .human-pane{
    background-color: #ffffff;
}

.ai-pane{
    background: #e2e8f0;
    border-right: 2px dashed #cbd5e1;
}

.human-pane{
    background: #f8fafc;
}

.label{
    position: absolute;
    top: 20px;
    font-weight: bold;
    font-family: sans-serif;
    padding: 5px 15px;
    border-radius: 20px;
    background: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Desktop mode */
@media (min-width: 768px) {
    .comparison-container.side-by-side{
        flex-direction: row;
    }
}

.controls{
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 15px;
    background: white;
    border-bottom: 1px solid #ddd;
}

.controls button{
    padding: 8px 16px;
    cursor: pointer;
    border: 1px solid #6366f1;
    background: white;
    color: #6366f1;
    border-radius: 5px;
    transition: 0.3s;
}

.controls button.active{
    background: #6366f1;
    color: white;
}

.ai-card, .human-card{
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateY(0);
    opacity: 1;
}

/* for hidden state that will be triggered via JS */
.switching {
    opacity: 0;
    transform: translateY(20px);
}