:root {
    --pd-shell: 1400px;
    --pd-side: 330px;
    --pd-gap: 12px;
    /* Subtle glass-style tint via gradients (no backdrop blur) */
    --pd-surface-elev: linear-gradient(135deg,
            color-mix(in srgb, var(--text) 4%, transparent) 0%,
            color-mix(in srgb, var(--text) 1.2%, transparent) 100%);
    --pd-line-soft: 1px solid color-mix(in srgb, var(--text) 7%, var(--border) 50%);
    --pd-line-faint: 1px solid color-mix(in srgb, var(--text) 6%, var(--border) 40%);
    --pd-sep: linear-gradient(90deg,
            transparent 0%,
            color-mix(in srgb, var(--text) 10%, transparent) 50%,
            transparent 100%);
}

/* =========================
   Page shell
========================= */

.pd-page {
    width: min(var(--pd-shell), calc(100% - 24px));
    margin: 0 auto;
    padding: 88px 0 32px;
    overflow-x: hidden;
}

.pd-loading,
.pd-error {
    width: min(820px, 100%);
    margin: 12px auto 0;
}

.pd-error {
    padding: 20px 22px;
    border-radius: 16px;
    border: var(--pd-line-soft);
    background: var(--pd-surface-elev);
    color: var(--text);
    box-shadow: none;
}

.pd-loading {
    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 0;
    border: none;
    background: transparent;
    box-shadow: none;
    color: var(--muted);
    line-height: 1.65;
}

/* =========================
   Detail page skeleton
========================= */

.pd-skeleton {
    display: grid;
    gap: 12px;
    width: 100%;
    animation: pdSkeletonFadeIn 0.35s ease;
}

@keyframes pdSkeletonFadeIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.pd-skeleton-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.pd-skeleton-status {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.pd-skeleton-spinner {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid color-mix(in srgb, var(--text) 10%, transparent);
    border-top-color: var(--primary, #7c5cff);
    flex-shrink: 0;
    animation: pdSkeletonSpin 0.85s linear infinite;
}

.pd-skeleton-status-label {
    margin: 0;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
}

.pd-skeleton-card {
    border: var(--pd-line-soft);
    border-radius: 16px;
    background: var(--pd-surface-elev);
    padding: 14px 16px;
}

.pd-skeleton-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: 14px;
    align-items: start;
}

.pd-skeleton-media {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 16px;
    min-height: 220px;
}

.pd-skeleton-media--video {
    aspect-ratio: 16 / 9;
}

.pd-skeleton-copy {
    min-width: 0;
    display: grid;
    gap: 10px;
    align-content: start;
}

.pd-skeleton-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.pd-skeleton-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
}

.pd-skeleton-controls {
    display: grid;
    gap: 10px;
    margin-top: 6px;
}

.pd-skeleton-control {
    border: var(--pd-line-faint);
    border-radius: 14px;
    padding: 12px 14px;
    display: grid;
    gap: 10px;
    background: color-mix(in srgb, var(--text) 2%, transparent);
}

.pd-skeleton-divider {
    height: 1px;
    width: 100%;
    margin: 4px 0;
    background: var(--pd-sep);
}

.pd-skeleton-section {
    display: grid;
    gap: 12px;
}

.pd-skeleton-pre {
    width: 100%;
    min-height: 140px;
    border-radius: 12px;
}

.pd-skeleton-foot {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 2px;
    font-size: 12px;
    font-weight: 600;
    color: var(--muted);
}

.pd-skeleton-foot-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--primary, #7c5cff);
    flex-shrink: 0;
    animation: pdSkeletonPulse 1.4s ease-in-out infinite;
}

.pd-sk {
    display: block;
    border-radius: 999px;
    background: linear-gradient(
        90deg,
        color-mix(in srgb, var(--text) 7%, transparent) 0%,
        color-mix(in srgb, var(--text) 12%, transparent) 45%,
        color-mix(in srgb, var(--text) 7%, transparent) 90%
    );
    background-size: 220% 100%;
    animation: pdSkeletonShimmer 1.35s ease-in-out infinite;
}

.pd-sk--pill {
    height: 28px;
    border-radius: 999px;
}

.pd-sk--pill-sm {
    height: 22px;
    border-radius: 999px;
}

.pd-sk--title {
    height: 34px;
    width: min(92%, 520px);
    border-radius: 12px;
}

.pd-sk--line {
    height: 12px;
    border-radius: 8px;
}

.pd-sk--line-md {
    width: 88%;
}

.pd-sk--line-sm {
    width: 72%;
}

.pd-sk--line-xs {
    width: 54%;
}

.pd-sk--btn {
    height: 40px;
    width: 118px;
    border-radius: 12px;
}

.pd-sk--btn-wide {
    height: 44px;
    width: min(100%, 280px);
    border-radius: 12px;
}

.pd-sk--crumb {
    height: 12px;
    width: 52px;
}

.pd-sk--crumb-md {
    width: 72px;
}

.pd-sk--crumb-lg {
    width: 120px;
}

.pd-sk--control-head {
    height: 14px;
    width: 42%;
}

.pd-sk--control-bar {
    height: 10px;
    width: 100%;
    border-radius: 999px;
}

@keyframes pdSkeletonShimmer {
    0% {
        background-position: 120% 0;
    }

    100% {
        background-position: -120% 0;
    }
}

@keyframes pdSkeletonSpin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes pdSkeletonPulse {
    0%,
    100% {
        opacity: 0.45;
        transform: scale(0.92);
    }

    50% {
        opacity: 1;
        transform: scale(1);
    }
}

@media (max-width: 980px) {
    .pd-skeleton-hero {
        grid-template-columns: 1fr;
    }

    .pd-skeleton-media {
        min-height: 200px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .pd-skeleton,
    .pd-sk,
    .pd-skeleton-spinner,
    .pd-skeleton-foot-dot {
        animation: none !important;
    }
}

.pd-error h2 {
    margin: 0 0 8px;
    font-size: 1.15rem;
}

.pd-error p {
    color: var(--muted);
    line-height: 1.65;
}

/* =========================
   Breadcrumbs
========================= */

.pd-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin: 0 0 10px;
    font-size: 13px;
    color: var(--muted);
}

.pd-breadcrumbs a {
    color: var(--text);
    text-decoration: none;
}

.pd-breadcrumbs a:hover {
    color: var(--primary);
}

/* =========================
   Main layout
========================= */

.pd-shell {
    align-items: start;
    width: 100%;
    max-width: 100%;
}

.pd-main {
    min-width: 0;
    width: 100%;
    max-width: 100%;
    display: grid;
    gap: 12px;
}

.pd-side {
    min-width: 0;
    width: var(--pd-side);
    max-width: var(--pd-side);
    justify-self: end;
}

.pd-side-sticky {
    position: sticky;
    top: 92px;
    width: 100%;
    max-width: var(--pd-side);
}

.pd-side .pd-card {
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    box-sizing: border-box;
}

/* =========================
   Generic card
========================= */

.pd-card {
    border: var(--pd-line-soft);
    border-radius: 16px;
    background: var(--pd-surface-elev);
    box-shadow: none;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.pd-section {
    padding: 16px 16px 18px;
}

.pd-section h2,
.pd-section h3,
.pd-control-head h3,
.pd-variant-head strong,
.pd-compare-text-head strong {
    line-height: 1.3;
    letter-spacing: -0.02em;
}

.pd-section+.pd-section,
.pd-main>.pd-card.pd-section+.pd-card.pd-section {
    margin-top: 0;
    border-top: none;
    box-shadow: none;
}

.pd-main>.pd-card.pd-section {
    position: relative;
    padding-top: 14px;
    margin-top: 0;
    border-radius: 16px;
}

.pd-main>.pd-card.pd-hero {
    border-radius: 16px;
}

.pd-main>.pd-card.pd-hero+.pd-card.pd-section::before {
    content: "";
    display: block;
    height: 1px;
    margin: 0 0 12px;
    background: var(--pd-sep);
    opacity: 0.9;
    pointer-events: none;
}

.pd-main>.pd-card.pd-section+.pd-card.pd-section::before {
    content: "";
    display: block;
    height: 1px;
    margin: 0 0 12px;
    background: var(--pd-sep);
    pointer-events: none;
}

.pd-section h2,
.pd-section h3 {
    margin: 0 0 10px;
    color: var(--text);
}

.pd-section h2 {
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.pd-section h3 {
    font-size: 1rem;
    font-weight: 800;
}

/* =========================
   Hero
========================= */

.pd-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: 14px;
    padding: 14px 16px;
    align-items: start;
    border: var(--pd-line-faint);
    background: var(--pd-surface-elev);
    box-shadow: none;
    min-height: 0;
}

.pd-hero-media {
    position: relative;
    min-width: 0;
    overflow: hidden;
    border-radius: 16px;
}

/* Prompt gallery images — 4/3, natural ratio in frame (not square) */
.pd-hero-media>img#pdMainImage {
    width: 100%;
    max-height: none;
    height: auto;
    aspect-ratio: 3 / 3;
    object-fit: cover;
    object-position: center;
    display: block;
    border-radius: 16px;
    border: var(--pd-line-faint);
    background: var(--surface-2);
    box-shadow: none;
    transition: filter 0.28s ease, transform 0.28s ease, box-shadow 0.28s ease;
}

/* Course + tutorial (video / YouTube style thumbnails) */
.pd-hero-media>img#cdMainImage,
.pd-hero-media>img#tdMainImage {
    width: 100%;
    max-height: none;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    object-position: center;
    display: block;
    border-radius: 16px;
    border: var(--pd-line-faint);
    background: var(--surface-2);
    box-shadow: none;
    transition: filter 0.28s ease, transform 0.28s ease, box-shadow 0.28s ease;
}

.pd-hero-media::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 32%;
    background: linear-gradient(to top,
            color-mix(in srgb, var(--text) 18%, transparent),
            transparent);
    pointer-events: none;
    border-radius: 0 0 16px 16px;
}

.pd-hero-copy {
    min-width: 0;
    display: grid;
    gap: 10px;
    align-content: start;
}

.pd-hero .pd-title {
    line-height: 0.98;
}

.pd-hero .pd-desc,
.pd-section .pd-desc,
.pd-info-card,
.pd-lock-box,
.pd-negative-text,
.pd-param-row span,
.pd-faq-item div,
.pd-list {
    line-height: 1.65;
}

/* Live Preview Studio: pull Before/After next to control stack (order only) */
#promptDetailApp .pd-hero-copy {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

#promptDetailApp .pd-hero-copy>.pd-control-card:nth-child(7),
#promptDetailApp .pd-hero-copy>.pd-control-card:nth-child(8),
#promptDetailApp .pd-hero-copy>.pd-control-card:nth-child(9),
#promptDetailApp .pd-hero-copy>.pd-control-card:nth-child(10) {
    order: 1;
}

#promptDetailApp #pdCompareSection {
    order: 2;
    margin-top: 2px;
}

#promptDetailApp .pd-hero-copy>.pd-control-card:nth-child(11),
#promptDetailApp .pd-hero-copy>.pd-control-card:nth-child(12) {
    order: 3;
    margin-top: 6px;
    padding-top: 12px;
    border-top: 1px solid color-mix(in srgb, var(--text) 5%, var(--border) 50%);
    border-top-left-radius: 0;
    border-top-right-radius: 0;
}

/* Tighten studio block: tone → compare */
#promptDetailApp .pd-hero-copy>.pd-control-card:nth-child(10) {
    margin-bottom: 0;
}

#promptDetailApp .pd-hero-copy>.pd-topline,
#promptDetailApp .pd-hero-copy>.pd-title,
#promptDetailApp .pd-hero-copy>.pd-desc,
#promptDetailApp .pd-hero-copy>#pdMeta,
#promptDetailApp .pd-hero-copy>.pd-action-row,
#promptDetailApp .pd-hero-copy>#pdShareBar {
    order: 0;
}

/* =========================
   Top chips / meta
========================= */

.pd-topline,
.pd-meta,
.pd-action-row,
.pd-token-wrap,
.pd-tone-selector,
.pd-remix-actions,
.pd-advanced-actions,
.pd-palette-preview,
.pd-compare-state-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.pd-share-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    padding-top: 2px;
}

.pd-meta :is(.pd-chip, a, span) {
    margin: 0;
}

.pd-chip,
.pd-token {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 0;
    padding: 5px 10px;
    border-radius: 6px;
    border: 1px solid color-mix(in srgb, var(--text) 10%, var(--border) 50%);
    background: color-mix(in srgb, var(--text) 5%, var(--surface-2) 90%);
    color: var(--text);
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: 0.03em;
    font-family: var(--font-body);
    font-variant-numeric: tabular-nums;
    box-shadow: none;
}

.pd-token {
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.03em;
    border-radius: 6px;
}

.pd-chip-premium {
    color: var(--btn-solid-text);
    border-color: color-mix(in srgb, var(--primary) 40%, transparent);
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    box-shadow: none;
    border-radius: 6px;
}

/* =========================
   Title / desc
========================= */

.pd-title {
    margin: 0;
    color: var(--text);
    font-size: clamp(32px, 3.6vw, 64px);
    line-height: 0.95;
    letter-spacing: -0.03em;
    font-weight: 800;
}

.pd-desc {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.65;
}

/* =========================
   Buttons
========================= */

.pd-btn {
    min-height: 40px;
    padding: 0 14px;
    border-radius: 10px;
    border: var(--pd-line-soft);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.pd-btn:hover {
    transform: translateY(-1px);
}

.pd-btn-primary {
    border-color: color-mix(in srgb, var(--primary) 50%, transparent);
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    color: var(--btn-solid-text);
    box-shadow: none;
}

.pd-btn-ghost {
    background: color-mix(in srgb, var(--text) 3%, var(--surface) 95%);
    color: var(--text);
    border: 1px solid color-mix(in srgb, var(--text) 10%, var(--border) 45%);
    box-shadow: none;
}

.pd-btn-ghost:hover {
    background: color-mix(in srgb, var(--text) 6%, var(--surface) 90%);
    border-color: color-mix(in srgb, var(--primary) 32%, var(--border) 25%);
}

.pd-btn.is-liked {
    border-color: color-mix(in srgb, rgb(255, 82, 120) 35%, var(--border) 20%);
    box-shadow: none;
    transform: translateY(0) scale(1);
}

.pd-btn:disabled {
    opacity: 0.8;
    cursor: not-allowed;
}

.pd-trend-score {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 0;
    padding: 5px 10px;
    border-radius: 6px;
    border: 1px solid color-mix(in srgb, var(--text) 7%, var(--border) 40%);
    background: color-mix(in srgb, var(--text) 4%, var(--surface-2) 92%);
    color: var(--text);
    font-size: 0.75rem;
    letter-spacing: 0.03em;
    box-shadow: none;
}

.pd-trend-score-label {
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 600;
}

/* =========================
   Test thumbs on image
========================= */

.pd-test-gallery {
    position: absolute;
    top: 10px;
    right: 10px;
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    max-width: calc(100% - 20px);
    z-index: 2;
}

.pd-test-thumb {
    width: 50px;
    height: 50px;
    border-radius: 8px;
    border: 1px solid color-mix(in srgb, var(--text) 22%, var(--border) 20%);
    background: color-mix(in srgb, var(--text) 8%, var(--surface-2) 85%);
    cursor: pointer;
    opacity: 0.95;
    transition: 0.2s ease;
    box-shadow: none;
    overflow: hidden;
}

.pd-test-thumb:hover {
    transform: translateY(-1px) scale(1.02);
}

.pd-test-thumb.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 20%, transparent);
}

.pd-before-chip {
    position: absolute;
    left: 10px;
    bottom: 10px;
    min-height: 36px;
    padding: 0 12px;
    border: 1px solid color-mix(in srgb, var(--primary) 40%, transparent);
    border-radius: 8px;
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    color: var(--btn-solid-text);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.04em;
    cursor: pointer;
    z-index: 2;
    box-shadow: none;
}

/* =========================
   Control cards
========================= */

.pd-control-card {
    padding: 12px 12px 14px;
    border: var(--pd-line-faint);
    border-radius: 14px;
    background: var(--pd-surface-elev);
    box-shadow: none;
}

#promptDetailApp .pd-hero-copy .pd-control-card:is(:nth-child(7), :nth-child(8), :nth-child(9), :nth-child(10), #pdCompareSection) {
    border: var(--pd-line-faint);
    background: var(--pd-surface-elev);
}

.pd-control-head,
.pd-section-head,
.pd-variant-head,
.pd-compare-text-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 10px;
}

.pd-control-head h3,
.pd-section-head h2 {
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.pd-control-head h3,
.pd-variant-head strong,
.pd-compare-text-head strong {
    margin: 0;
    color: var(--text);
}

.pd-control-value {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text);
    opacity: 0.4;
    font-weight: 600;
    max-width: 60%;
    text-align: right;
    line-height: 1.35;
}

.pd-tone-btn {
    min-height: 36px;
    padding: 0 12px;
    border-radius: 8px;
    border: 1px solid color-mix(in srgb, var(--text) 9%, var(--border) 40%);
    background: color-mix(in srgb, var(--text) 3.5%, var(--surface) 95%);
    color: var(--text);
    cursor: pointer;
    font-size: 12px;
    font-weight: 700;
    transition: 0.2s ease;
}

.pd-tone-btn:hover {
    transform: translateY(-1px);
    border-color: color-mix(in srgb, var(--primary) 32%, var(--border) 20%);
    background: color-mix(in srgb, var(--text) 5%, var(--surface) 90%);
}

.pd-tone-btn.active {
    border-color: color-mix(in srgb, var(--primary) 50%, transparent);
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    color: var(--btn-solid-text);
    box-shadow: none;
}

.pd-strength-slider {
    width: 100%;
    accent-color: var(--primary);
    cursor: pointer;
    margin-top: 2px;
}

.pd-palette-swatch {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 2px solid color-mix(in srgb, var(--text) 20%, var(--border) 20%);
    cursor: pointer;
    transition: 0.2s ease;
    box-shadow: none;
}

.pd-palette-swatch:hover {
    transform: scale(1.04);
}

.pd-palette-swatch.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 22%, transparent);
}

.pd-remix-output,
.pd-info-card,
.pd-lock-box,
.pd-faq-item,
.pd-param-row,
.pd-setting-row,
.pd-variant-card,
.pd-related-card,
.pd-compare-text-card {
    border: var(--pd-line-faint);
    border-radius: 12px;
    background: var(--pd-surface-elev);
    box-shadow: none;
}

.pd-remix-output,
.pd-info-card,
.pd-lock-box,
.pd-faq-item,
.pd-param-row,
.pd-setting-row,
.pd-compare-text-card {
    padding: 12px;
}

.pd-remix-output {
    color: var(--muted);
    line-height: 1.65;
    white-space: pre-wrap;
    margin-top: 8px;
    min-height: 56px;
}

.pd-lock-box strong,
.pd-negative-head {
    display: block;
    margin-bottom: 6px;
    color: var(--text);
    font-weight: 800;
    font-size: 0.95rem;
}

.pd-negative-text {
    color: var(--muted);
    line-height: 1.65;
}

/* =========================
   Version history
========================= */

.pd-version-history {
    display: grid;
    gap: 8px;
}

.pd-version-item {
    width: 100%;
    text-align: left;
    padding: 12px;
    border-radius: 12px;
    border: var(--pd-line-faint);
    background: var(--pd-surface-elev);
    color: var(--text);
    cursor: pointer;
    transition: 0.2s ease;
    box-shadow: none;
}

.pd-version-item strong {
    display: block;
    font-size: 12px;
    margin-bottom: 2px;
    font-weight: 800;
}

.pd-version-item span {
    display: block;
    font-size: 11px;
    color: var(--muted);
    line-height: 1.5;
}

.pd-version-item.active {
    border-color: color-mix(in srgb, var(--primary) 45%, var(--border) 20%);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 12%, transparent);
}

/* =========================
   Compare
========================= */

.pd-compare-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 3 / 3;
    overflow: hidden;
    border-radius: 12px;
    background: var(--surface);
    border: var(--pd-line-faint);
    user-select: none;
    touch-action: none;
    cursor: ew-resize;
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--text) 4%, transparent);
    min-height: 0;
}

.pd-compare-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    pointer-events: none;
}

.pd-compare-after {
    z-index: 2;
    clip-path: inset(0 50% 0 0);
    -webkit-clip-path: inset(0 50% 0 0);
}

.pd-compare-before {
    z-index: 1;
}

.pd-compare-divider {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 0;
    transform: translateX(-50%);
    z-index: 3;
    pointer-events: none;
}

.pd-compare-divider::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    transform: translateX(-50%);
    background: color-mix(in srgb, var(--text) 65%, var(--bg) 10%);
    opacity: 0.9;
}

.pd-compare-handle {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 44px;
    height: 44px;
    transform: translate(-50%, -50%);
    border-radius: 999px;
    background: color-mix(in srgb, var(--text) 92%, var(--bg) 8%);
    box-shadow: 0 2px 12px color-mix(in srgb, var(--text) 20%, transparent);
    border: 1px solid color-mix(in srgb, var(--text) 10%, var(--bg) 30%);
}

.pd-compare-handle::before,
.pd-compare-handle::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 7px;
    height: 7px;
    border-top: 2px solid var(--bg);
    border-right: 2px solid var(--bg);
}

.pd-compare-handle::before {
    left: 12px;
    transform: translateY(-50%) rotate(-135deg);
}

.pd-compare-handle::after {
    right: 12px;
    transform: translateY(-50%) rotate(45deg);
}

.pd-compare-text-wrap {
    display: grid;
    gap: 10px;
    margin-top: 8px;
}

.pd-compare-text-head span {
    color: var(--muted);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.45;
    font-weight: 600;
}

/* =========================
   Prompt / text blocks
========================= */

.pd-pre {
    margin: 0;
    padding: 12px 14px;
    white-space: pre-wrap;
    word-break: break-word;
    line-height: 1.65;
    border-radius: 12px;
    border: var(--pd-line-faint);
    background: var(--pd-surface-elev);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 14px;
}

.pd-list {
    margin: 0;
    padding-left: 16px;
    color: var(--text);
    line-height: 1.65;
}

.pd-list li+li {
    margin-top: 6px;
}

.pd-params-guide,
.pd-setting-table,
.pd-variants-wrap,
.pd-related-grid,
.pd-faq-wrap {
    display: grid;
    gap: 10px;
}

.pd-param-row strong,
.pd-setting-label {
    display: block;
    margin-bottom: 4px;
    color: var(--text);
    font-size: 0.88rem;
    font-weight: 800;
}

.pd-param-row span,
.pd-faq-item div {
    color: var(--muted);
    line-height: 1.65;
}

.pd-faq-item strong {
    display: block;
    margin-bottom: 4px;
    color: var(--text);
    font-size: 0.9rem;
}

.pd-setting-row {
    display: grid;
    grid-template-columns: minmax(0, 180px) minmax(0, 1fr);
    gap: 10px;
}

.pd-variant-card {
    padding: 12px;
}

.pd-variant-copy {
    min-height: 32px;
    padding: 0 12px;
    border: 0;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    color: var(--btn-solid-text);
    font-weight: 700;
    font-size: 12px;
    cursor: pointer;
    box-shadow: none;
}

.pd-variant-copy:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.pd-variant-card pre,
.pd-compare-text-card pre {
    margin: 0;
    color: var(--text);
    line-height: 1.65;
    white-space: pre-wrap;
    word-break: break-word;
    font-family: var(--font-body);
}

.pd-compare-text-card {
    background: var(--pd-surface-elev);
}

/* =========================
   Related
========================= */

.pd-related-card {
    display: grid;
    grid-template-columns: minmax(96px, 1fr) minmax(0, 1.4fr);
    gap: 10px 12px;
    padding: 8px 10px;
    text-decoration: none;
    color: inherit;
    transition: 0.2s ease;
    align-items: start;
    border-radius: 12px;
}

.pd-related-card:hover {
    transform: translateY(-1px);
    border-color: color-mix(in srgb, var(--primary) 32%, var(--border) 15%);
    background: color-mix(in srgb, var(--text) 4%, var(--surface) 90%);
    box-shadow: none;
}

.pd-related-card img {
    width: 100%;
    max-width: 120px;
    height: auto;
    aspect-ratio: 13 / 9;
    object-fit: cover;
    object-position: center;
    display: block;
    border-radius: 8px;
    margin: 0 auto 0 0;
}

.pd-related-body h4 {
    margin: 0 0 4px;
    color: var(--text);
    font-size: 0.9rem;
    line-height: 1.3;
    font-weight: 800;
}

.pd-related-body p {
    margin: 0;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.5;
}

.pd-related-lock {
    color: var(--primary);
    font-size: 0.85em;
    vertical-align: middle;
    opacity: 0.9;
}

/* =========================
   Sidebar
========================= */

.pd-side .pd-card+.pd-card {
    margin-top: 12px;
}

/* =========================
   Internal links (Explore more)
========================= */

.pd-internal-link-chip {
    display: inline-flex;
    align-items: center;
    min-height: 0;
    padding: 6px 10px 6px 12px;
    border-radius: 6px;
    border: 1px solid color-mix(in srgb, var(--text) 8%, var(--border) 45%);
    background: color-mix(in srgb, var(--text) 3.5%, var(--surface) 95%);
    color: var(--text);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    line-height: 1.4;
    transition: color 0.2s, border-color 0.2s, box-shadow 0.2s, background 0.2s, padding 0.2s;
    border-left: 2px solid transparent;
    box-shadow: none;
    word-break: break-word;
    max-width: 100%;
}

.pd-internal-link-chip:hover,
.pd-internal-link-chip:focus-visible {
    transform: none;
    border-color: color-mix(in srgb, var(--primary) 40%, var(--border) 20%);
    border-left-color: var(--primary);
    color: var(--text);
    background: color-mix(in srgb, var(--text) 2%, transparent);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: color-mix(in srgb, var(--primary) 55%, transparent);
}

.pd-btn.is-disabled,
.pd-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none !important;
}

.pd-compare-wrap:hover .pd-compare-handle {
    transform: translate(-50%, -50%) scale(1.04);
}

.pd-compare-handle {
    transition: transform 0.18s ease;
}

.pd-image-modal {
    position: fixed;
    inset: 0;
    /* Backdrop only (children are not faded) */
    background: rgb(0 0 0 / 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.pd-image-modal img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 12px;
}

#tdLikeBtn,
#cdLikeBtn {
    min-width: 88px;
    justify-content: center;
    gap: 6px;
    transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}

#tdLikeBtn:hover,
#cdLikeBtn:hover {
    border-color: color-mix(in srgb, rgb(255, 90, 130) 40%, var(--border) 20%);
}

#tdLikeBtn.active,
#cdLikeBtn.active {
    color: #ff6b97;
    border-color: color-mix(in srgb, rgb(255, 107, 151) 40%, var(--border) 20%);
    background: color-mix(in srgb, rgb(255, 107, 151) 12%, var(--surface) 80%);
    box-shadow: none;
}

#tdLikeBtn.active:hover,
#cdLikeBtn.active:hover {
    color: #ff6b97;
}

#tdLikeBtn span,
#cdLikeBtn span {
    display: inline-block;
    min-width: 10px;
}

#cdCertificateBtn,
#tdCertificateBtn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    white-space: nowrap;
}

#pdMobileBar {
    z-index: 999 !important;
}

/* =========================
   Preview mode tiles
========================= */

.pd-preview-modes {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.pd-preview-mode {
    text-align: left;
    padding: 12px;
    border-radius: 12px;
    border: var(--pd-line-faint);
    background: var(--pd-surface-elev);
    color: var(--text);
    cursor: pointer;
    transition: 0.2s ease;
    box-shadow: none;
    min-width: 0;
}

.pd-preview-mode:hover {
    transform: translateY(-1px);
    border-color: color-mix(in srgb, var(--primary) 32%, var(--border) 20%);
    background: color-mix(in srgb, var(--text) 4%, var(--surface) 92%);
}

.pd-preview-mode.active {
    border-color: color-mix(in srgb, var(--primary) 50%, var(--border) 10%);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 14%, transparent);
    background: color-mix(in srgb, var(--primary) 9%, var(--surface) 88%);
}

.pd-preview-mode strong {
    display: block;
    margin-bottom: 4px;
    font-size: 0.9rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.pd-preview-mode span {
    display: block;
    color: var(--muted);
    line-height: 1.55;
    font-size: 12px;
}

.pd-internal-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: flex-start;
}

/* =========================
   Tablet
========================= */

@media (max-width: 1180px) {
    .pd-shell {
        grid-template-columns: 1fr;
    }

    .pd-side-sticky {
        position: static;
        max-width: 100%;
    }

    .pd-side {
        order: 2;
        width: 100%;
        max-width: 100%;
        justify-self: stretch;
    }

    .pd-main {
        order: 1;
    }
}

/* =========================
   ≤1024px
========================= */

@media (max-width: 1024px) {
    .pd-hero {
        gap: 12px;
    }

    .pd-related-card {
        grid-template-columns: minmax(88px, 0.4fr) minmax(0, 1.2fr);
    }
}

/* =========================
   Mobile / narrow
========================= */

@media (max-width: 768px) {
    .pd-page {
        width: min(var(--pd-shell), calc(100% - 16px));
        padding: 80px 0 24px;
    }

    .pd-hero {
        grid-template-columns: 1fr;
        padding: 12px 12px 14px;
        gap: 10px;
    }

    .pd-title {
        font-size: 32px;
        line-height: 1.02;
    }

    .pd-section,
    .pd-control-card {
        padding: 10px 10px 12px;
    }

    .pd-setting-row {
        grid-template-columns: 1fr;
    }

    .pd-control-head,
    .pd-section-head,
    .pd-variant-head,
    .pd-compare-text-head {
        align-items: flex-start;
        flex-direction: column;
    }

    .pd-control-value {
        text-align: left;
        max-width: 100%;
    }

    .pd-test-gallery {
        top: 8px;
        right: 8px;
        max-width: calc(100% - 16px);
    }

    .pd-test-thumb {
        width: 44px;
        height: 44px;
    }

    .pd-related-card {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .pd-related-card img {
        max-width: 100%;
        width: 100%;
    }

    .pd-compare-handle {
        width: 40px;
        height: 40px;
    }

    .pd-preview-modes {
        grid-template-columns: 1fr;
    }

    .pd-action-row {
        gap: 6px;
    }
}

/* Legacy breakpoint kept for any edge overrides */
@media (max-width: 860px) {
    .pd-breadcrumbs {
        font-size: 12px;
    }
}