.preview-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    overflow-y: auto;
}
.preview-content {
    background: var(--darker);
    margin: 2rem auto;
    width: 90%;
    max-width: 1200px;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    position: relative;
}
.preview-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--dark-light);
    border-radius: 12px 12px 0 0;
}
.preview-header h2 {
    font-size: 1.5rem;
    color: var(--light);
    margin: 0;
}
.close-preview {
    background: none;
    border: none;
    color: var(--gray);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    padding: 0.5rem;
    border-radius: 4px;
}
.close-preview:hover {
    color: var(--light);
    background: rgba(255, 255, 255, 0.05);
}
.preview-body {
    padding: 0;
}
.preview-body .thread-content {
    margin: 0;
    border-radius: 0 0 12px 12px;
    box-shadow: none;
    border: none;
}