.ebook-pdf-reader {
    position: relative;
    width: 100%;
    min-height: 420px;
    max-height: 75vh;
    overflow: auto;
    background: #1a1a2e;
    border-radius: var(--radius-md, 12px);
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
    -webkit-user-select: none;
    user-select: none;
}

.ebook-pdf-reader--tall {
    min-height: 600px;
    max-height: 80vh;
}

.ebook-pdf-reader-loading,
.ebook-pdf-reader-error {
    padding: 3rem 1.5rem;
    text-align: center;
    color: var(--text-muted, #94a3b8);
}

.ebook-pdf-reader-pages {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 12px;
}

.ebook-pdf-reader-pages canvas {
    display: block;
    max-width: 100%;
    height: auto !important;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
    border-radius: 4px;
}

.ebook-pdf-reader-badge {
    position: sticky;
    top: 0;
    z-index: 2;
    width: 100%;
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    text-align: center;
    background: rgba(99, 102, 241, 0.15);
    color: #c7d2fe;
    border-bottom: 1px solid rgba(99, 102, 241, 0.25);
}