.njp-pdf-viewer {
    width: 100%;
    max-width: 100%;
    margin: 24px 0;
    box-sizing: border-box;
    color: inherit;
}
.njp-pdf-viewer * { box-sizing: border-box; }
.njp-pdf-viewer.njp-pdf-bordered {
    border: 1px solid #d9dee5;
    border-radius: 8px;
    overflow: hidden;
}
.njp-pdf-frame-wrap {
    width: 100%;
    height: var(--njp-pdf-height, 720px);
    background: #f3f4f6;
    overflow: hidden;
    position: relative;
}
.njp-pdf-frame-wrap iframe {
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
    background: #fff;
}
.njp-pdf-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 14px;
    font-size: 14px;
    line-height: 1.4;
    background: #f8fafc;
}
.njp-pdf-actions span {
    min-width: 0;
    overflow-wrap: anywhere;
}
.njp-pdf-actions a {
    flex: 0 0 auto;
    text-decoration: underline;
}
.njp-pdf-error { padding: 12px; border: 1px solid #d63638; }
@media (max-width: 767px) {
    .njp-pdf-frame-wrap { height: var(--njp-pdf-mobile-height, 520px); }
    .njp-pdf-actions { align-items: flex-start; flex-direction: column; }
    .njp-pdf-actions a { white-space: normal; }
}


.njp-pdf-zoom-controls {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    padding: 9px 12px;
    background: #f1f5f9;
    border-bottom: 1px solid #d9dee5;
    font-size: 14px;
}
.njp-pdf-zoom-controls button {
    min-width: 34px;
    min-height: 32px;
    padding: 4px 9px;
    border: 1px solid #cbd5e1;
    border-radius: 5px;
    background: #fff;
    color: #172033;
    font: inherit;
    line-height: 1.2;
    cursor: pointer;
}
.njp-pdf-zoom-controls button:hover { background: #e2e8f0; }
.njp-pdf-zoom-controls button:disabled { opacity: .45; cursor: not-allowed; }
.njp-pdf-zoom-level {
    min-width: 48px;
    text-align: center;
    font-variant-numeric: tabular-nums;
}
.njp-pdf-frame-wrap {
    overflow: auto;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-x pan-y pinch-zoom;
}
.njp-pdf-zoom-stage {
    position: relative;
    min-width: 100%;
    min-height: 100%;
}
.njp-pdf-zoom-stage iframe {
    position: absolute;
    top: 0;
    left: 0;
    max-width: none;
    transform-origin: top left;
    will-change: transform;
}
@media (max-width: 480px) {
    .njp-pdf-zoom-controls { justify-content: center; gap: 6px; padding: 8px 6px; }
    .njp-pdf-zoom-controls button { min-width: 32px; }
}