/* Erasure poem — toggle between poem text and redacted filing pages */

.erasure-container {
    position: relative;
}

/* Hidden checkbox drives the toggle */
.erasure-checkbox {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

/* Toggle label — styled like site nav/metadata brackets */
.erasure-toggle {
    position: sticky;
    top: 1rem;
    z-index: 50;
    display: inline-flex;
    align-items: center;
    gap: 0;
    margin-bottom: 2rem;
    padding: 0;
    background: none;
    border: none;
    color: var(--muted);
    font: 0.8rem/1 'Courier New', monospace;
    cursor: pointer;
    transition: color 0.3s ease;
    letter-spacing: var(--letter-spacing-wide);
    user-select: none;
}

.erasure-toggle::before {
    content: '[';
    color: var(--text-ghost);
    margin-right: 0.3em;
}

.erasure-toggle::after {
    content: ']';
    color: var(--text-ghost);
    margin-left: 0.3em;
}

.erasure-toggle:hover {
    color: var(--accent);
}

.erasure-checkbox:focus-visible + .erasure-toggle {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Swap label text */
.erasure-label-pages { display: none; }
.erasure-label-text  { display: inline; }

.erasure-checkbox:checked ~ .erasure-toggle .erasure-label-text  { display: none; }
.erasure-checkbox:checked ~ .erasure-toggle .erasure-label-pages { display: inline; }

/* Views — default: text visible, pages hidden */
.erasure-view--text {
    opacity: 1;
    max-height: none;
    overflow: visible;
    pointer-events: auto;
    transition: opacity 0.3s ease;
}

.erasure-view--pages {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

/* Checked: swap visibility */
.erasure-checkbox:checked ~ .erasure-view--text {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    pointer-events: none;
}

.erasure-checkbox:checked ~ .erasure-view--pages {
    opacity: 1;
    max-height: none;
    overflow: visible;
    pointer-events: auto;
}

/* === No-JS fallback: show both stacked, hide toggle === */
.no-js .erasure-toggle,
.no-js .erasure-checkbox {
    display: none;
}

.no-js .erasure-view--text,
.no-js .erasure-view--pages {
    opacity: 1;
    max-height: none;
    overflow: visible;
    pointer-events: auto;
}

.no-js .erasure-view--text {
    margin-bottom: 3rem;
}

/* === Page images — no-JS vertical stack === */
.erasure-pages {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.erasure-page {
    width: 100%;
    max-width: 700px;
    height: auto;
    border: 1px solid var(--border);
    border-radius: var(--border-radius-md);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

:root[data-theme="light"] .erasure-page {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

/* Hide Swiper pagination until initialized */
.erasure-pagination {
    display: none;
}

/* === Swiper-enhanced overrides === */
.swiper-initialized .erasure-pages {
    flex-direction: row;
    align-items: stretch;
    gap: 0;
}

.swiper-initialized .erasure-page {
    max-width: none;
    width: 100%;
    max-height: 75vh;
    object-fit: contain;
}

/* Pagination — bracket-wrapped fraction like site metadata */
.swiper-initialized .erasure-pagination {
    display: block;
    margin-top: 1rem;
    font: 0.8rem/1 'Courier New', monospace;
    color: var(--muted);
    letter-spacing: var(--letter-spacing-wide);
    text-align: center;
}

/* Nav arrows — monospace glyphs, not Swiper defaults */
.erasure-nav {
    display: none;
}

.swiper-initialized .erasure-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    color: var(--muted);
    background: none;
    border: none;
    transition: color 0.2s ease;
}

.swiper-initialized .erasure-nav:hover {
    color: var(--accent);
}

.swiper-initialized .erasure-nav.swiper-button-disabled {
    opacity: 0.2;
    cursor: default;
}

/* Override Swiper's default arrow glyphs */
.erasure-carousel .swiper-button-prev::after {
    content: '←';
    font-family: 'Courier New', monospace;
    font-size: 1rem;
}

.erasure-carousel .swiper-button-next::after {
    content: '→';
    font-family: 'Courier New', monospace;
    font-size: 1rem;
}

/* Page links — plain wrapper, no link styling */
.erasure-page-link {
    display: block;
    text-decoration: none;
    line-height: 0;
}

/* Clickable page hint */
.swiper-initialized .erasure-page {
    cursor: zoom-in;
}

/* Lightbox */
.erasure-lightbox {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(4px);
    cursor: zoom-out;
    animation: erasure-fade-in 0.2s ease;
}

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

@keyframes erasure-fade-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.erasure-lightbox-img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border: 1px solid var(--border);
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.erasure-lightbox-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: none;
    color: var(--muted);
    font: 0.85rem/1 'Courier New', monospace;
    cursor: pointer;
    transition: color 0.2s ease;
    letter-spacing: var(--letter-spacing-wide);
}

.erasure-lightbox-close:hover {
    color: var(--accent);
}

@media (max-width: 768px) {
    .erasure-toggle {
        font-size: 0.75rem;
    }

    .erasure-nav {
        display: none !important;
    }

    .erasure-lightbox-img {
        max-width: 95vw;
        max-height: 85vh;
    }

    .erasure-lightbox-close {
        top: 1rem;
        right: 1rem;
    }
}