/* Video Container - Responsive YouTube Embeds */
.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    max-width: 100%;
    margin: 1.5rem 0;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 8px;
}

/* Video caption */
.video-caption {
    text-align: center;
    font-style: italic;
    color: var(--fg);
    opacity: 0.8;
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

/* Quiz styling enhancements */
.quiz-container {
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--quote-bg);
    border-radius: 8px;
    border-left: 4px solid var(--links);
}

/* Learning objectives box */
.learning-objectives {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1.5rem;
    border-radius: 8px;
    margin: 1.5rem 0;
}

.learning-objectives h3 {
    margin-top: 0;
    color: white;
}

.learning-objectives ul {
    margin-bottom: 0;
}

/* Pro tip box */
.pro-tip {
    background: #fef3c7;
    border-left: 4px solid #f59e0b;
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    border-radius: 0 8px 8px 0;
}

.pro-tip::before {
    content: "💡 Pro Tip: ";
    font-weight: bold;
}

/* Enterprise callout */
.enterprise-note {
    background: #dbeafe;
    border-left: 4px solid #3b82f6;
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    border-radius: 0 8px 8px 0;
}

.enterprise-note::before {
    content: "🏢 Enterprise: ";
    font-weight: bold;
}

/* Security warning */
.security-warning {
    background: #fee2e2;
    border-left: 4px solid #ef4444;
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    border-radius: 0 8px 8px 0;
}

.security-warning::before {
    content: "🔐 Security: ";
    font-weight: bold;
}