.lecture-content {
    max-width: 700px;
    text-align: left;
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 85vh;
    /* Fixed height for scroll */
}

.lecture-header {
    background: linear-gradient(135deg, rgba(15, 23, 42, 1), rgba(30, 41, 59, 1));
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.lecture-badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--accent-color);
    background: rgba(56, 189, 248, 0.1);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    margin-bottom: 0.5rem;
    font-family: 'Fira Code', monospace;
}

.lecture-header h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.6rem;
    color: var(--text-primary);
    margin: 0;
}

.lecture-points {
    padding: 2rem;
    background: var(--card-bg);
    overflow-y: auto;
    flex: 1;
}

/* Rich Content Styles */
.lecture-text {
    margin-bottom: 2rem;
    line-height: 1.8;
    color: #e2e8f0;
    font-size: 1.05rem;
}

.lecture-text p {
    margin-bottom: 1rem;
}

.lecture-text strong {
    color: var(--accent-color);
    font-weight: 700;
}

.lecture-example {
    background: #0f172a;
    border: 1px solid #334155;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

.lecture-example::before {
    content: "EXAMPLE";
    position: absolute;
    top: 0;
    right: 0;
    background: #334155;
    color: #94a3b8;
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
    border-bottom-left-radius: 8px;
    font-weight: bold;
    letter-spacing: 1px;
}

.lecture-example h4 {
    color: #94a3b8;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.lecture-example pre {
    font-family: 'Fira Code', monospace;
    color: #a5f3fc;
    background: transparent;
    padding: 0;
    margin: 0;
    font-size: 1rem;
    white-space: pre-wrap;
    word-break: break-all;
}

.lecture-note {
    background: rgba(16, 185, 129, 0.1);
    border-left: 4px solid var(--success-color);
    padding: 1rem 1.5rem;
    border-radius: 0 8px 8px 0;
    margin-bottom: 1.5rem;
}

.lecture-note p {
    margin: 0;
    color: #d1fae5;
    font-size: 0.95rem;
    display: flex;
    gap: 0.8rem;
    align-items: center;
}

/* Legacy styles */
.lecture-point-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.point-icon {
    font-size: 1.5rem;
    background: rgba(56, 189, 248, 0.1);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
}

.point-text {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}

.lecture-footer {
    padding: 1.5rem 2rem;
    background: rgba(15, 23, 42, 0.95);
    border-top: 1px solid var(--border-color);
    text-align: center;
    flex-shrink: 0;
}

.lecture-hint {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    opacity: 0.7;
}

@media (max-width: 600px) {
    .lecture-content {
        width: 100%;
        height: 100vh;
        border-radius: 0;
    }
}