.int-feed-current-filter {
    margin-top: var(--sp-3);
}

.int-stories-grid {
    margin-top: var(--sp-6);
}

.int-story-card {
    overflow: hidden;
}

.int-story-card-topline {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-2);
    margin-bottom: var(--sp-3);
}

.int-story-card-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-2);
    margin-top: var(--sp-4);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.int-story-article {
    display: grid;
    gap: var(--sp-6);
}

.int-post-header {
    display: grid;
    gap: var(--sp-3);
}

.int-post-lead {
    margin: 0;
    max-width: 46rem;
    color: var(--color-text-secondary);
    line-height: 1.76;
    font-size: 1.03rem;
}

.int-story-overview-wrap {
    margin-top: var(--sp-2);
}

.int-story-overview {
    border: 1px solid var(--color-border);
    border-radius: calc(var(--radius-xl) + 2px);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.94)),
        var(--color-surface);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.int-story-overview-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-4);
    padding: var(--sp-4) var(--sp-5);
    cursor: pointer;
    list-style: none;
    user-select: none;
}

.int-story-overview-summary::-webkit-details-marker {
    display: none;
}

.int-story-overview-summary-copy {
    display: grid;
    gap: 4px;
    min-width: 0;
}

.int-story-overview-summary-kicker {
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.int-story-overview-summary-title {
    color: var(--color-text);
    font-weight: 700;
    line-height: 1.45;
}

.int-story-overview-summary-action {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-accent);
}

.int-story-overview-summary-action::after {
    content: '▾';
    font-size: 0.9rem;
    transition: transform 0.18s ease;
}

.int-story-overview[open] .int-story-overview-summary-action::after {
    transform: rotate(180deg);
}

.int-story-overview-body {
    display: grid;
    gap: var(--sp-4);
    padding: 0 var(--sp-5) var(--sp-5);
    border-top: 1px solid var(--color-border);
}

.int-story-summary-card,
.int-story-overview-card {
    padding: var(--sp-5);
    border: 1px solid var(--color-border);
    border-radius: calc(var(--radius-xl) + 2px);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.94)),
        var(--color-surface);
    box-shadow: var(--shadow-sm);
}

.int-story-section-kicker {
    margin: 0 0 var(--sp-3);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.int-story-summary-text {
    margin: 0;
    color: var(--color-text);
    line-height: 1.76;
}

.int-story-overview-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(260px, 0.95fr);
    gap: var(--sp-4);
}

.int-story-overview-grid.is-single {
    grid-template-columns: minmax(0, 1fr);
}

.int-story-overview-copy {
    display: grid;
    gap: var(--sp-3);
    color: var(--color-text-secondary);
}

.int-story-overview-copy p {
    margin: 0;
    line-height: 1.74;
}

.int-story-feature-list {
    margin: 0;
    padding-left: 1.1rem;
    display: grid;
    gap: var(--sp-3);
    color: var(--color-text-secondary);
}

.int-story-feature-list li {
    line-height: 1.6;
}

.int-story-cover {
    aspect-ratio: 16 / 10;
    object-fit: cover;
}

.int-story-footer {
    display: grid;
    gap: var(--sp-5);
    padding-top: var(--sp-6);
    border-top: 1px solid var(--color-border);
}

.int-story-cluster {
    display: grid;
    gap: var(--sp-3);
}

.int-story-cluster-label {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.int-story-tags {
    gap: var(--sp-2);
}

.int-story-tag {
    cursor: default;
}

.int-story-reactions {
    gap: var(--sp-3);
}

.int-reader-section {
    margin-top: var(--sp-2);
    padding-top: var(--sp-5);
    border-top: 1px solid var(--color-border);
    scroll-margin-top: calc(var(--header-h, 64px) + var(--sp-5));
}

.int-reader-shell {
    display: grid;
    gap: var(--sp-4);
}

.int-reader-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--sp-4);
}

.int-reader-stage {
    min-height: clamp(540px, 58vh, 760px);
    padding: 0;
}

.int-scene-title {
    margin: 0;
    font-size: clamp(1.55rem, 2.5vw, 2rem);
    line-height: 1.12;
}

.int-scene-text {
    margin-top: var(--sp-4);
}

.int-scene-text p:last-child {
    margin-bottom: 0;
}

.int-scene-choices {
    display: grid;
    gap: var(--sp-3);
    margin-top: var(--sp-6);
}

.int-scene-choices .choice {
    width: 100%;
    padding: var(--sp-4) var(--sp-5);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(248, 250, 252, 0.92));
    color: var(--color-text);
    text-align: left;
    cursor: pointer;
    transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}

.int-scene-choices .choice:hover:not(.is-locked) {
    transform: translateY(-1px);
    box-shadow: var(--shadow-xs);
    border-color: rgba(37, 99, 235, 0.24);
}

.int-scene-choices .choice.is-locked {
    opacity: 0.58;
    cursor: not-allowed;
}

.choice-label {
    display: block;
    font-weight: 700;
    line-height: 1.4;
}

.choice-meta {
    display: block;
    margin-top: var(--sp-2);
    color: var(--color-text-muted);
    line-height: 1.65;
    font-size: 0.95rem;
}

.int-comments-section {
    max-width: 100%;
    margin-top: 0;
}

.int-comment-form-grid {
    display: grid;
    grid-template-columns: minmax(0, 22rem);
    gap: var(--sp-4);
}

.int-lightbox {
    position: fixed;
    inset: 0;
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--sp-6);
    background: rgba(10, 14, 24, 0.86);
    backdrop-filter: blur(10px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 180ms ease, visibility 180ms ease;
}

.int-lightbox.active {
    opacity: 1;
    visibility: visible;
}

.int-lightbox-dialog {
    width: min(980px, 100%);
    display: grid;
    gap: var(--sp-4);
}

.int-lightbox-figure {
    margin: 0;
    border-radius: calc(var(--radius-xl) + 2px);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.04);
}

.int-lightbox-figure img {
    display: block;
    width: 100%;
    max-height: min(76vh, 860px);
    object-fit: contain;
    margin: 0 auto;
}

.int-lightbox-footer {
    display: grid;
    justify-items: center;
    gap: var(--sp-3);
    text-align: center;
    color: #fff;
}

.int-lightbox-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-2);
    justify-content: center;
}

.int-lightbox-meta span {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0 12px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    font-size: 0.9rem;
}

.int-lightbox-close {
    position: absolute;
    top: var(--sp-5);
    right: var(--sp-5);
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    font-size: 1.6rem;
    cursor: pointer;
}

@keyframes v4-dot-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(79, 70, 229, 0.45); }
    50% { box-shadow: 0 0 0 8px rgba(79, 70, 229, 0); }
}

@keyframes v4-row-glow {
    0%, 100% { background-color: rgba(79, 70, 229, 0.06); }
    50% { background-color: rgba(79, 70, 229, 0.12); }
}

.int-v4-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: var(--sp-6);
    align-items: start;
}

.int-v4-main {
    min-width: 0;
    display: grid;
    gap: var(--sp-8);
}

.int-v4-sidebar {
    position: sticky;
    top: calc(var(--header-h, 64px) + var(--sp-4));
    max-height: calc(100vh - var(--header-h, 64px) - var(--sp-8));
    overflow-y: auto;
    scrollbar-width: none;
}

.int-v4-sidebar::-webkit-scrollbar {
    display: none;
}

.int-v4-sidebar-inner {
    display: grid;
    gap: var(--sp-5);
}

.int-v4-sidebar-block {
    padding: var(--sp-5);
    border: 1px solid var(--color-border);
    border-radius: calc(var(--radius-xl) + 2px);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.94)),
        var(--color-surface);
    box-shadow: var(--shadow-sm);
}

.int-v4-sidebar-label {
    margin: 0 0 var(--sp-4);
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
}

.int-v4-map {
    display: grid;
    gap: 0;
}

.int-v4-map-row {
    display: grid;
    grid-template-columns: 36px 1fr;
    gap: var(--sp-3);
    align-items: start;
    padding: var(--sp-2) var(--sp-3);
    margin: 0 calc(var(--sp-3) * -1);
    border-radius: var(--radius-lg);
    border-left: 3px solid transparent;
    transition: background-color 0.35s ease, border-color 0.35s ease, opacity 0.35s ease;
}

.int-v4-map-row.is-current {
    border-left-color: #4f46e5;
    animation: v4-row-glow 2.5s ease-in-out infinite;
}

.int-v4-map-row.is-current .int-v4-map-dot {
    animation: v4-dot-pulse 2s ease-in-out infinite;
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.22), 0 3px 12px rgba(79, 70, 229, 0.4);
    transform: scale(1.18);
}

.int-v4-map-row.is-current .int-v4-map-act-title {
    color: #4f46e5;
    font-weight: 800;
}

.int-v4-map-row.is-current .int-v4-map-act-summary {
    color: var(--color-text);
}

.int-v4-map-row.is-passed {
    opacity: 0.55;
}

.int-v4-map-row.is-passed .int-v4-map-dot {
    background: linear-gradient(135deg, #10b981, #059669);
}

.int-v4-map-row.is-passed .int-v4-map-line {
    background: linear-gradient(180deg, rgba(16, 185, 129, 0.4), rgba(16, 185, 129, 0.1));
}

.int-v4-map-dot-col {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.int-v4-map-dot {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, #4f46e5, #a855f7);
    color: #fff;
    font-weight: 800;
    font-size: 0.78rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: box-shadow 0.35s ease, transform 0.35s ease, background 0.35s ease;
}

.int-v4-map-dot--end {
    background: linear-gradient(135deg, #0d9488, #4f46e5);
    font-size: 0.6rem;
}

.int-v4-map-line {
    width: 2px;
    height: 100%;
    min-height: 18px;
    background: linear-gradient(180deg, rgba(79, 70, 229, 0.3), rgba(168, 85, 247, 0.1));
    border-radius: 1px;
    transition: background 0.35s ease;
}

.int-v4-map-info {
    padding-bottom: var(--sp-2);
}

.int-v4-map-act-title {
    display: block;
    font-weight: 700;
    font-size: 0.9rem;
    line-height: 1.3;
    transition: color 0.35s ease, font-weight 0.2s ease;
}

.int-v4-map-act-summary {
    display: block;
    margin-top: 2px;
    color: var(--color-text-secondary);
    font-size: 0.8rem;
    line-height: 1.4;
    transition: color 0.35s ease;
}

.int-v4-map-stats {
    display: flex;
    gap: var(--sp-3);
    margin-top: var(--sp-3);
    padding-top: var(--sp-3);
    border-top: 1px solid rgba(148, 163, 184, 0.14);
}

.int-v4-stat {
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

.int-v4-stat strong {
    color: var(--color-text);
}

.int-v4-wall-stack {
    display: grid;
    gap: var(--sp-4);
}

.int-v4-wall-card {
    position: relative;
    display: block;
    width: 100%;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    cursor: pointer;
    background: var(--color-surface-alt);
    padding: 0;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
    text-align: left;
}

.int-v4-wall-card:hover {
    box-shadow: 0 4px 16px rgba(79, 70, 229, 0.12);
    transform: translateY(-2px);
}

.int-v4-wall-card-img {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    transition: transform 320ms var(--ease);
}

.int-v4-wall-card:hover .int-v4-wall-card-img {
    transform: scale(1.03);
}

.int-v4-wall-card-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--sp-2) var(--sp-3);
    background: linear-gradient(transparent, rgba(10, 14, 24, 0.72));
    color: #fff;
    font-size: 0.8rem;
    font-weight: 600;
    opacity: 0;
    transition: opacity 220ms ease;
    pointer-events: none;
}

.int-v4-wall-card:hover .int-v4-wall-card-label {
    opacity: 1;
}

.int-v4-wall-meta {
    margin-top: var(--sp-3);
    text-align: center;
    font-style: italic;
}

@media (max-width: 1100px) {
    .int-v4-layout {
        grid-template-columns: minmax(0, 1fr) 290px;
    }
}

@media (max-width: 960px) {
    .int-v4-layout {
        display: flex;
        flex-direction: column;
    }

    .int-story-overview-grid {
        grid-template-columns: 1fr;
    }

    .int-v4-main {
        display: contents;
    }

    .story-reading-progress { order: 1; }
    .int-story-article { order: 2; }
    .int-v4-sidebar { order: 3; }
    .int-lightbox { order: 4; }
    .int-comments-section { order: 5; }

    .int-v4-sidebar {
        position: static;
        max-height: none;
        overflow-y: visible;
        width: 100%;
    }

    .int-v4-sidebar-inner {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .int-reader-top {
        flex-direction: column;
        align-items: flex-start;
    }

    .int-story-overview-summary {
        flex-direction: column;
        align-items: flex-start;
    }

    .int-story-overview-body {
        padding-left: var(--sp-4);
        padding-right: var(--sp-4);
        padding-bottom: var(--sp-4);
    }

    .int-reader-stage {
        min-height: 0;
    }

    .int-comment-form-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .int-v4-sidebar-inner {
        grid-template-columns: 1fr;
    }
}