/* Application Root Viewport */
.quiz-viewport {
    min-height: calc(100dvh - 60px); /* Adjust based on your topbar height */
    width: 100%;
    padding: 2rem 1rem;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    background: var(--bg);
    box-sizing: border-box;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text);
    transition: background 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dynamic Screen Mount Container */
.screen-mount-pane {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    animation: mountFadeIn 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes mountFadeIn {
    from { 
        opacity: 0; 
        transform: translateY(15px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}