/* Dataflow-specific component map, comparison and Transformation View. */
/* Activity gallery. Inactive slides retain their dimensions so the
   frame stays steady when descriptions or images have different heights. */
.activity-carousel {
    min-width: 0;
    margin-top: 20px;
}

.activity-carousel [hidden] {
    display: none;
}

.carousel__frame {
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: rgba(13, 21, 29, 0.45);
}

.carousel__viewport {
    display: grid;
    min-width: 0;
    gap: 28px;
}

.carousel__slide {
    min-width: 0;
    margin: 0;
}

.carousel__view {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
    width: 100%;
    max-width: none;
    min-height: 0;
    margin-inline: auto;
    align-content: start;
}

.carousel__description {
    padding: clamp(20px, 2vw, 36px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
}

.case-study .carousel__eyebrow {
    margin-bottom: 12px;
    color: var(--accent);
    font-family: var(--heading-font);
    font-size: 0.8125rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.carousel__description h4 {
    margin: 0 0 20px;
    color: var(--text);
    font-size: clamp(1.125rem, 1.4vw, 1.5rem);
    line-height: 1.4;
}

.carousel__description p:last-child {
    margin-bottom: 0;
    font-size: 1.0625rem;
    line-height: 1.7;
    max-width: 100ch;
}

.carousel__media {
    min-width: 0;
    min-height: 320px;
    width: 100%;
    height: 100%;
    border-radius: var(--radius);
}

img.carousel__media {
    display: block;
    object-fit: contain;
    border: 1px solid var(--border);
    background: var(--surface);
}

.activity-carousel.is-enhanced .carousel__frame {
    display: grid;
    grid-template-columns: clamp(48px, 4vw, 96px) minmax(0, 1fr) clamp(48px, 4vw, 96px);
    align-items: stretch;
    gap: clamp(12px, 2vw, 48px);
}

.activity-carousel.is-enhanced .carousel__viewport {
    overflow: hidden;
    gap: 0;
    isolation: isolate;
}

.activity-carousel.is-enhanced .carousel__slide {
    grid-area: 1 / 1;
}

.activity-carousel.is-enhanced .carousel__slide[hidden] {
    display: block;
    visibility: hidden;
    pointer-events: none;
}

.carousel__arrow {
    display: grid;
    place-items: center;
    min-width: 44px;
    min-height: 52px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--accent);
    background: linear-gradient(180deg, var(--surface), var(--accent-soft), var(--surface));
    cursor: pointer;
    transition:
        border-color 180ms ease,
        background-color 180ms ease,
        box-shadow 180ms ease;
}

.carousel__arrow svg {
    width: 100%;
    max-width: 42px;
    height: 70%;
    max-height: 280px;
    stroke-width: 2;
    transition: transform 180ms ease;
}

.carousel__arrow path {
    vector-effect: non-scaling-stroke;
    stroke-width: 2.5;
}

.carousel__arrow:hover {
    border-color: var(--accent);
    background-color: var(--accent-soft);
    box-shadow: inset 0 0 24px var(--accent-soft);
}

.carousel__arrow--previous:hover svg {
    transform: translateX(-3px);
}

.carousel__arrow--next:hover svg {
    transform: translateX(3px);
}

.carousel__arrow:active svg {
    transform: scale(0.92);
}

.carousel__arrow:focus-visible {
    outline-offset: -4px;
}

@media (max-width: 700px) {
    .activity-carousel.is-enhanced .carousel__frame {
        grid-template-columns: 52px minmax(0, 1fr) 52px;
        gap: 12px;
    }

    .activity-carousel.is-enhanced .carousel__viewport {
        grid-column: 1 / -1;
        grid-row: 1;
    }

    .carousel__arrow {
        grid-row: 2;
        height: 52px;
    }

    .carousel__arrow--next {
        grid-column: 3;
    }

    .carousel__arrow svg {
        width: 24px;
        height: 28px;
    }
}

/* DFD's component map inherits the same palette and surface as its media cards. */
.case-study .system-map__eyebrow {
    margin: 0 0 8px;
    color: var(--accent);
    font-family: var(--heading-font);
    font-size: 1rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.system-map__load {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding-block: 10px;
    color: var(--text-muted);
    font-size: 1rem;
}

.system-map__load > span,
.system-map__resource-link > span {
    color: var(--accent);
    font-size: 1.125rem;
}

.system-map__browser-heading {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 18px;
    color: var(--text);
    font-family: var(--heading-font);
    font-size: 1rem;
}

.system-map__badge {
    padding: 3px 16px;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-muted);
    font-family: var(--body-font);
    font-size: 1rem;
}

.system-map__components {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 160px minmax(0, 1fr);
    grid-template-areas:
        "workspace exchange engine"
        "persistence . input"
        "storage . csv";
    column-gap: 12px;
}

.system-map__workspace {
    grid-area: workspace;
}
.system-map__engine {
    grid-area: engine;
}
.system-map__exchange {
    grid-area: exchange;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 32px;
    min-width: 0;
}
.system-map__persistence {
    grid-area: persistence;
}
.system-map__input {
    grid-area: input;
}
.system-map__storage {
    grid-area: storage;
}
.system-map__csv {
    grid-area: csv;
}

.system-map__component {
    min-width: 0;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
}

.system-map__component h4 {
    margin: 0 0 18px;
    color: var(--text-muted);
    font-family: var(--heading-font);
    font-size: 1rem;
    font-weight: 500;
}

.system-map__module + .system-map__module {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}

.case-study .system-map__module p {
    margin: 5px 0 0;
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.6;
}

.system-map__connection {
    display: grid;
    justify-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 1rem;
    text-align: center;
}

.system-map__line {
    position: relative;
    width: 100%;
    height: 1px;
    background: var(--accent);
}

.system-map__line::after {
    content: "";
    position: absolute;
    top: -3px;
    right: 0;
    width: 7px;
    height: 7px;
    border-right: 1.5px solid var(--accent);
    border-top: 1.5px solid var(--accent);
    transform: rotate(45deg);
}

.system-map__connection--response .system-map__line::after {
    right: auto;
    left: 0;
    transform: rotate(-135deg);
}

.system-map__direction {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
}

.system-map__resource-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding-block: 12px;
    color: var(--text-muted);
    font-size: 1rem;
    text-align: center;
}

/* On narrow cards, explicit relationship labels preserve the meaning of edges
   while keeping the component text readable. */
@container (max-width: 640px) {
    .system-map__components {
        grid-template-columns: minmax(0, 1fr);
        grid-template-areas:
            "workspace"
            "exchange"
            "engine"
            "input"
            "csv"
            "persistence"
            "storage";
    }

    .system-map__exchange {
        flex-direction: row;
        gap: 18px;
        padding-block: 18px;
    }

    .system-map__connection {
        flex: 1;
    }

    .system-map__line {
        display: none;
    }

    .system-map__direction {
        position: static;
        width: auto;
        height: auto;
        overflow: visible;
        clip-path: none;
        white-space: normal;
        color: var(--accent);
    }

    .system-map__connection--request .system-map__direction::before {
        content: "↓ ";
    }

    .system-map__connection--response .system-map__direction::before {
        content: "↑ ";
    }

    .system-map__persistence > span {
        display: none;
    }
}

@container (max-width: 350px) {
    .system-map__browser {
        padding: 12px;
    }
}

.transformation-intro {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(28px, 4vw, 72px);
}
.transformation-intro__story {
    min-width: 0;
}
.case-study .transformation-intro__story > p:last-child {
    max-width: 76ch;
    margin-bottom: 0;
}
.transformation-benefits {
    margin: 0;
    padding-left: 1.25em;
    color: var(--text-muted);
    font-weight: 400;
}
.transformation-benefits li + li {
    margin-top: 6px;
}
.story-arrow {
    flex-shrink: 0;
    width: 18px;
    height: 14px;
    color: var(--text-soft);
}
.story-arrow--title {
    display: inline-block;
    width: 1.1em;
    height: 0.85em;
    vertical-align: -0.1em;
    color: currentColor;
}
.preview-comparison {
    margin-block: 24px 32px;
}
.comparison-panels {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: repeat(5, auto);
    column-gap: 24px;
}
.comparison-panel {
    display: grid;
    grid-row: span 5;
    grid-template-rows: subgrid;
    min-width: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
}
.comparison-panel--dfd {
    --border: rgba(123, 207, 88, 0.22);
    background: linear-gradient(var(--accent-soft), var(--accent-soft)), var(--surface);
}
.comparison-panel__header,
.comparison-panel__intro,
.comparison-panel__row {
    min-width: 0;
    padding: 24px clamp(20px, 2vw, 32px);
}
.comparison-panel__header {
    padding-bottom: 16px;
}
.comparison-panel__intro {
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--border);
}
.case-study .comparison-panel__header h3 {
    margin-bottom: 0;
    font-size: 1.25rem;
}
.comparison-panel__intro > p {
    font-size: 1rem;
}
.story-workflow {
    display: flex;
    flex-wrap: wrap;
    gap: 5px 8px;
    margin: auto 0 0;
    padding: 8px 0 0;
    list-style: none;
    color: var(--text-muted);
    font-size: 0.9375rem;
    line-height: 1.7;
}
.story-workflow li {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.comparison-panel__row {
    border-top: 1px solid var(--border);
}
.comparison-panel__intro h4,
.comparison-panel__row h4 {
    margin: 0 0 12px;
    font-size: 0.9375rem;
    font-weight: 600;
}
.case-study .comparison-panel__row p {
    margin-bottom: 0;
    font-size: 1rem;
}
.case-study .comparison-panel__row .comparison-panel__scope {
    margin-bottom: 10px;
    color: var(--text);
    font-size: 1.25rem;
    font-weight: 600;
}
.case-study .comparison-panel__row .comparison-panel__time {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 10px;
    color: var(--text);
    font-family: var(--heading-font);
    font-size: clamp(1.75rem, 2.5vw, 2.25rem);
    font-weight: 500;
    line-height: 1.3;
    font-variant-numeric: tabular-nums;
}
.comparison-panel__time span {
    font-size: 1.125rem;
}
.comparison-panel__time small {
    margin-left: 4px;
    color: var(--text-muted);
    font-family: var(--body-font);
    font-size: 0.875rem;
    font-weight: 400;
    white-space: nowrap;
}
.flow-editor-intro {
    max-width: 100ch;
}
.case-study--dataflow img.carousel__media {
    height: auto;
    min-height: 0;
}
.sort-preview {
    min-width: 0;
}
.sort-preview__frame {
    position: relative;
    container-type: inline-size;
}
.sort-preview__hotspots {
    position: absolute;
    inset: 0;
    pointer-events: none;
}
.sort-preview__hotspot {
    position: absolute;
    right: 0.4%;
    width: 4.4%;
    height: 8.2%;
    padding: 0;
    border: 1px solid #405667;
    border-radius: 4px;
    color: #e3edf6;
    background: #192a35;
    font-family: var(--body-font);
    font-size: min(0.8cqw, 16px);
    font-weight: 600;
    line-height: 1;
    cursor: pointer;
    pointer-events: auto;
}
.sort-preview__hotspot[data-sort-stage="0"] {
    top: 14.8%;
}
.sort-preview__hotspot[data-sort-stage="1"] {
    top: 24.2%;
    color: #b78cff;
    border-color: #7960bd;
    background: #1b1b32;
}
.sort-preview__hotspot[data-sort-stage="2"] {
    top: 32.8%;
    color: #729cff;
    border-color: #4c6bb3;
    background: #172436;
}
.sort-preview__hotspot[data-sort-stage="3"] {
    top: 41.2%;
}
.sort-preview__hotspot[aria-pressed="true"],
.sort-preview__hotspot:hover {
    box-shadow:
        inset 0 0 0 1px currentColor,
        0 0 5px currentColor;
}
.sort-preview__hotspot:focus-visible {
    outline-offset: 2px;
}
.sort-description__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 12px;
}
.case-study--dataflow .sort-description__header .carousel__eyebrow {
    margin-bottom: 0;
}
.sort-preview__toggle {
    flex-shrink: 0;
    min-height: 44px;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    background: var(--surface-raised);
    font: inherit;
    font-size: 0.875rem;
    cursor: pointer;
}
.sort-preview__toggle:hover {
    border-color: var(--accent);
    background: var(--accent-soft);
}
.engineering-diagram {
    margin-top: 12px;
}
.engineering-decisions {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-template-rows: auto 1fr;
    gap: 12px 20px;
    margin-top: 24px;
}
.engineering-decisions > article {
    display: grid;
    grid-row: span 2;
    grid-template-rows: subgrid;
    min-width: 0;
    padding: 24px 24px 0;
}
.case-study--dataflow #engineering {
    padding-bottom: 20px;
}
.case-study .engineering-decisions h3 {
    margin-bottom: 0;
}
.case-study .engineering-decisions p {
    margin-bottom: 0;
    font-size: 1.0625rem;
}
.case-study--dataflow .engineering-confidence {
    padding-top: 20px;
    border-top: 1px solid var(--border);
    font-size: 1rem;
    margin-bottom: 0;
    max-width: 110ch;
}
.case-study--dataflow .closing > p:not(.case-section-subtitle) {
    font-size: 1.125rem;
    max-width: 100ch;
}
@media (max-width: 900px) {
    .engineering-decisions,
    .transformation-intro {
        grid-template-columns: minmax(0, 1fr);
        gap: 12px;
    }
    .engineering-decisions {
        grid-template-rows: none;
    }
    .engineering-decisions > article {
        grid-row: auto;
        grid-template-rows: auto auto;
    }
}
@media (max-width: 760px) {
    .comparison-panels {
        grid-template-columns: none;
        grid-auto-flow: column;
        grid-auto-columns: calc(100% - 28px);
        column-gap: 14px;
        margin-inline: calc(-1 * var(--page-gutter));
        padding-inline: var(--page-gutter);
        overflow-x: auto;
        overscroll-behavior-x: contain;
        scroll-snap-type: x mandatory;
        scroll-padding-inline: var(--page-gutter);
        scrollbar-width: none;
    }
    .comparison-panels::-webkit-scrollbar {
        display: none;
    }
    .comparison-panels .comparison-panel {
        scroll-snap-align: start;
        scroll-snap-stop: always;
    }
}
@media (max-width: 620px) {
    .story-workflow {
        align-items: center;
    }
    .comparison-panel--dfd .story-workflow {
        flex-wrap: nowrap;
    }
    .comparison-panel--dfd .story-workflow li {
        flex-shrink: 0;
    }
    .comparison-panel--dfd .story-workflow li:last-child {
        flex: 1;
        min-width: 0;
        justify-content: center;
        text-align: center;
        line-height: 1.25;
    }
    .dataflow-graph .project-screenshot__expand {
        display: none;
    }
}

@media (max-width: 360px) {
    .comparison-panel--dfd .story-workflow {
        gap: 5px 4px;
        font-size: 0.8125rem;
    }
    .comparison-panel--dfd .story-workflow li {
        gap: 4px;
    }
}

.comparison-hint {
    display: none;
}
@media (max-width: 760px) {
    .case-study .comparison-hint {
        display: block;
        margin-bottom: 12px;
        font-size: 0.8125rem;
        color: var(--accent);
    }
}

/* The closing section uses the available column on laptop and larger screens. */
@media (min-width: 1181px) {
    .case-study--dataflow #outcome > * {
        max-width: none;
    }
}