.wals-pdf-lightbox[hidden] {
    display: none;
}

.wals-pdf-lightbox {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.wals-pdf-lightbox__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    cursor: pointer;
}

.wals-pdf-lightbox__panel {
    position: relative;
    width: min(92vw, 1200px);
    height: min(92vh, 900px);
    background: #fff;
    border-radius: 6px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.wals-pdf-lightbox__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    border-bottom: 1px solid #e5e7eb;
    background: #f9fafb;
    flex-shrink: 0;
}

.wals-pdf-lightbox__title {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: #374151;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    padding-right: 12px;
}

.wals-pdf-lightbox__actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}

.wals-pdf-lightbox__open-tab {
    font-size: 13px;
    color: #0094c1;
    text-decoration: none;
}

.wals-pdf-lightbox__open-tab:hover {
    text-decoration: underline;
}

.wals-pdf-lightbox__close {
    background: none;
    border: none;
    font-size: 28px;
    line-height: 1;
    color: #6b7280;
    cursor: pointer;
    padding: 0 4px;
}

.wals-pdf-lightbox__close:hover {
    color: #111827;
}

.wals-pdf-lightbox__body {
    flex: 1;
    position: relative;
    background: #525659; /* matches Chrome PDF viewer */
}

.wals-pdf-lightbox__iframe {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
}

.wals-pdf-lightbox__loading {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 14px;
    background: #525659;
}

.wals-pdf-lightbox.is-loaded .wals-pdf-lightbox__loading {
    display: none;
}

/* Lock body scroll while open */
body.wals-pdf-lightbox-open {
    overflow: hidden;
}