/* EPUB Reader Preview & Extraction Controls */

/* EPUB Viewer Card */
.preview-card {
    padding: 0;
    margin-bottom: 1.25rem;
    display: flex;
    flex-direction: column;
    border: 2px solid var(--color-oxblood);
}

.reader-container {
    height: 42vh;
    min-height: 280px;
    max-height: 460px;
    background: #FFFFFF;
    position: relative;
}

.viewer {
    width: 100%;
    height: 100%;
}

.preview-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.55rem 1rem;
    margin: 0;
    background: var(--color-cream);
    border-top: 2px solid var(--color-oxblood);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.preview-footer button {
    width: auto;
    margin: 0;
    padding: 0.35rem 0.85rem;
    font-size: 0.78rem;
}

/* Controls Grid */
.controls-card {
    margin-bottom: 1.25rem;
    border: 2px solid var(--color-oxblood);
    background-color: #FFFFFF;
}

.controls-card label {
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--color-oxblood);
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    font-size: 0.85rem;
    margin-bottom: 0.4rem;
}

.radio-label input[type="radio"] {
    margin: 0;
    cursor: pointer;
}

.range-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.range-row input {
    margin-bottom: 0;
    text-align: center;
}

.range-sep {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-oxblood);
}

.checkbox-toggle-label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    font-size: 0.85rem;
    margin-bottom: 0.4rem;
    white-space: nowrap;
}

.checkbox-toggle-label input[type="checkbox"] {
    margin: 0;
    cursor: pointer;
}

.extract-col button {
    width: 100%;
    margin-bottom: 0;
}

.ai-disclaimer-note {
    display: block;
    margin-top: 0.65rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-align: right;
}