.quiz-iframe-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 100;
    background: var(--bg-main);
}

.quiz-iframe-container iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

.quiz-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    gap: 20px;
    color: var(--text-secondary);
    font-weight: 600;
}

body.quiz-active .header {
    display: none !important;
}

body.quiz-active .scroll-frame {
    padding-top: 0;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(0, 242, 255, 0.15);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: quiz-spin 0.8s linear infinite;
}

@keyframes quiz-spin {
    to { transform: rotate(360deg); }
}