.column.generating .column-header {
    animation: pulse-slide 2s infinite ease-in-out;
}

@keyframes pulse-slide {
    0% { background-color: rgba(139, 92, 246, 0.1); transform: translateX(0); border-bottom-color: var(--primary-color); }
    50% { background-color: rgba(139, 92, 246, 0.3); transform: translateX(5px); box-shadow: 0 0 15px rgba(139, 92, 246, 0.5); border-bottom-color: var(--accent-color); }
    100% { background-color: rgba(139, 92, 246, 0.1); transform: translateX(0); border-bottom-color: var(--primary-color); }
}

.marquee-item {
    padding: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.875rem;
    color: var(--text-muted);
    text-align: left;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.marquee-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.idea-title {
    color: var(--text-color);
    font-weight: 600;
}

.idea-pain {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-style: italic;
}

.ad-space {
    margin-top: var(--spacing-md); /* Reduced from XL to save space */
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    flex: 1; 
    overflow: hidden;
    position: relative;
    border-radius: var(--border-radius);
    min-height: 150px;
    margin-bottom: 0; /* Ensure no bottom gap */
}

.suggestions-marquee {
    mask-image: linear-gradient(to bottom, transparent, black 10%, black 90%, transparent);
}

.marquee-content {
    display: flex;
    flex-direction: column;
    animation: scroll-vertical 60s linear infinite;
}

@keyframes scroll-vertical {
    0% { transform: translateY(0); }
    100% { transform: translateY(-50%); }
}

.marquee-content:hover {
    animation-play-state: paused;
}

.segmented-control {
    display: flex;
    background-color: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2px;
    gap: 2px;
}

[data-theme="purple"] .segmented-control {
    background-color: var(--input-bg);
}

.segmented-control span {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 6px 4px;
    border-radius: calc(var(--border-radius) - 1px);
    font-size: 0.875rem;
    color: var(--text-muted);
    transition: all 0.1s;
    min-height: 44px;
}

.segmented-control input:checked + span {
    background-color: var(--primary-color);
    color: var(--bg-color);
    font-weight: 600;
}

[data-theme="purple"] .segmented-control input:checked + span {
    background-color: var(--card-bg);
    color: var(--primary-color);
}

.toc-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 200px;
}

.toc-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    flex: 1;
    overflow-y: auto;
    padding-right: 4px;
}

.toc-input {
    background: none;
    border: none;
    padding: 8px 0;
    font-size: 0.875rem;
    flex: 1;
}

.toc-input:focus {
    border: none;
}

.toc-actions {
    display: flex;
    gap: 2px;
}

.btn-remove {
    padding: 8px;
    color: var(--text-muted);
}

.btn-remove:hover {
    color: var(--error-color);
}

.btn-small {
    padding: 8px var(--spacing-md);
    font-size: 0.875rem;
}