/**
 * Reader Overlay Styles (BEM)
 *
 * Full-viewport overlay for the Azuki reader web component.
 */

/* Block — hidden by default via HTML hidden attribute */
.reader-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: none;
}

.reader-overlay[hidden] {
    display: none !important;
}

.reader-overlay.reader-overlay--active {
    display: block;
}

/* Prevent body scroll when reader is open */
body.reader-active {
    overflow: hidden;
}

/* Backdrop */
.reader-overlay__backdrop {
    position: absolute;
    inset: 0;
    background: var(--color-black);
    opacity: 0.95;
}

/* Close button */
.reader-overlay__close {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 10;
    background: none;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    padding: 8px;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.reader-overlay__close:hover,
.reader-overlay__close:focus-visible {
    opacity: 1;
}

/* Status area — centered loading/error/auth messages */
.reader-overlay__status {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5;
}

.reader-overlay__status[hidden] {
    display: none;
}

.reader-overlay__status-content {
    text-align: center;
    color: var(--color-white);
}

/* Loading spinner */
.reader-overlay__spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.reader-overlay__spinner[hidden] {
    display: none;
}

.reader-overlay__spinner svg {
    animation: reader-spin 1.5s linear infinite;
    opacity: 0.6;
}

@keyframes reader-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.reader-overlay__spinner p {
    margin: 0;
    font-size: 14px;
    opacity: 0.7;
}

/* Message area (errors, login prompt) */
.reader-overlay__message {
    max-width: 400px;
    padding: 24px;
}

.reader-overlay__message[hidden] {
    display: none;
}

.reader-overlay__message h3 {
    margin: 0 0 12px;
    font-size: 18px;
    font-family: "Maax Medium";
    font-weight: 400;
}

.reader-overlay__message p {
    margin: 0 0 20px;
    font-size: 14px;
    opacity: 0.8;
    line-height: 1.5;
}

.reader-overlay__message .button {
    display: inline-block;
    margin: 4px;
}

/* Reader container — fills viewport, sits on top of status */
.reader-overlay__reader {
    position: absolute;
    inset: 0;
    z-index: 6;
    background: var(--color-black);
}

.reader-overlay__reader:empty {
    display: none;
}

.reader-overlay__reader azuki-reader {
    width: 100%;
    height: 100%;
    display: block;
}

/* Consent Gate — white card dialog on dark backdrop */

.reader-overlay__consent {
    position: absolute;
    inset: 0;
    z-index: 8;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.reader-overlay__consent[hidden] {
    display: none;
}

.reader-overlay__consent-card {
    background: var(--color-white);
    color: var(--color-black);
    border: 2px solid var(--color-black);
    width: 100%;
    max-width: 460px;
}

.reader-overlay__consent-title {
    margin: 0;
    padding: 20px 24px;
    font-family: "Maax Bold";
    font-weight: 400;
    font-size: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 1.6px;
}

.reader-overlay__consent-body {
    padding: 20px 24px;
    border-top: 2px solid var(--color-black);
}

.reader-overlay__consent-text {
    margin: 0 0 20px;
    font-size: 0.938rem;
    line-height: 1.5;
}

.reader-overlay__consent-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 20px;
    cursor: pointer;
    font-size: 0.938rem;
    line-height: 1.4;
}

.reader-overlay__consent-checkbox {
    margin-top: 3px;
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    accent-color: var(--color-black);
}

.reader-overlay__consent-confirm {
    display: block;
    width: 100%;
    padding: 14px;
    background: var(--color-black);
    color: var(--color-white);
    border: none;
    font-family: "Maax Bold";
    font-weight: 400;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.reader-overlay__consent-confirm:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.reader-overlay__consent-confirm:not(:disabled):hover {
    opacity: 0.85;
}

.reader-overlay__consent-footer {
    padding: 16px 24px;
    border-top: 2px solid var(--color-black);
    text-align: center;
}

.reader-overlay__consent-close {
    background: none;
    border: none;
    color: var(--color-black);
    font-family: "Maax Medium";
    font-weight: 400;
    font-size: 0.813rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    padding: 4px 8px;
    transition: opacity 0.2s;
}

.reader-overlay__consent-close:hover {
    opacity: 0.6;
}

/* Consent gate on dedicated reader page (no overlay parent) */
.reader-overlay__consent--page {
    position: fixed;
    background: rgba(0, 0, 0, 0.95);
}

/* Chapter transition message (shown between auto-advance chapters) */
.reader-chapter-transition {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 400px;
    background: var(--color-black);
    color: var(--color-white);
    font-size: 16px;
    text-align: center;
}