@layer components {
    .kicker {
        color: var(--primary);
        font-size: .76rem;
        font-weight: 700;
        letter-spacing: .11em;
        text-transform: uppercase;
    }
    [dir="rtl"] .kicker {
        letter-spacing: 0
    }


    

    #toc-percent{
        direction: ltr;
        font-family: var(--font-mono);
        font-variant-numeric: tabular-nums;
        letter-spacing: .5px;
    }
}


    .project-brief {
        max-width: 400px;
        margin-inline: auto;
        align-self: center;
        padding: 24px;
        border: var(--border);
        border-radius: var(--radius-xl);
        background: color-mix(in srgb, var(--bg-surface) 92%, transparent);
        box-shadow: var(--shadow-lg);
        backdrop-filter: blur(12px)
    }
    .brief-top {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        padding-block-end: 16px;
        border-block-end: var(--border);
        font-weight: 800;
        color: var(--text-heading)
    }
    .brief-list {
        display: grid
    }
    .brief-list>div {
        display: flex;
        justify-content: space-between;
        gap: 20px;
        padding-block: 13px;
        border-block-end: var(--border);
        font-size: .82rem
    }

    .brief-list dt {
        color: var(--text-muted)
    }

    .brief-list dd {
        font-weight: 720;
        text-align: end;
        color: var(--text-heading)
    }

    .stack-list {
        display: flex;
        flex-wrap: wrap;
        gap: var(--space-2);
        margin-block: var(--space-4);
    }
    .stack-list li {
        padding: var(--space-1) var(--space-2);
        border-radius: var(--space-1);
        background: var(--bg-soft);
        font: 600 .68rem var(--font-mono);
        color: var(--text-soft);
    }

    .continuity-card {
        display: flex;
        align-items: center;
        gap: var(--space-3);
        padding: var(--space-3);
        border-radius: var(--space-3);
        background: var(--bg-soft);

        --icon-size: 26px;
        --mask: var(--success);
    }

    .continuity-card div {
        display: grid
    }

    .continuity-card strong {
        color: var(--text-heading);
        font-size: .85rem
    }

    .continuity-card span {
        color: var(--text-soft);
        font-size: .73rem
    }


    

    .outcome-grid {
        display: grid;
        gap: var(--space-4)
    }

    @media (width > 580px) {
        .outcome-grid {
            grid-template-columns: repeat(2, 1fr)
        }
    }
    @media (width > 1024px) {
        .outcome-grid {
            grid-template-columns: repeat(4, 1fr)
        }
    }

    .outcome-card {
        position: relative;
        padding: var(--space-6);
        background: var(--bg-surface);
        border: var(--border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        transition: transform var(--transition-normal), box-shadow var(--transition-normal), border var(--transition-normal);
    
        --icon-size: 36px;
        --mask: var(--primary-grade);
    }

    .outcome-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-lg);
        border-color: var(--primary);
    }

    .outcome-card > span {
        position: absolute;
        inset-block-start: 16px;
        inset-inline-end: 16px;
        color: var(--text-muted);
        font: 700 .85rem var(--font-mono)
    }

    .outcome-card > i{
        margin-bottom: var(--space-3);
    }

    .outcome-card h3 {
        font-size: 1.05rem
    }

    .outcome-card p {
        margin-block-start: 9px;
        color: var(--text-soft);
        font-size: .86rem;
        line-height: 1.65
    }

    .article-shell {
        display: grid;
        grid-template-columns: minmax(0, 1fr);
        gap: 44px;
        padding-block: 72px;
        background: var(--bg-body);
    }

    .toc {
        display: none
    }

    .article {
        min-width: 0;
        max-width: var(--container-narrow)
    }

    .article-section {
        position: relative;
        padding-block: 20px 70px;
        scroll-margin-top: calc(var(--header-height) + 20px)
    }

    .article-section+.article-section {
        padding-block-start: 70px;
        border-block-start: var(--border)
    }

    .section-number {
        position: absolute;
        inset-block-start: 20px;
        inset-inline-end: 0;
        font: 700 .85rem var(--font-mono);
        color: var(--text-muted);
    }

    .article-section+.article-section .section-number {
        inset-block-start: 70px
    }

    .article-section h2 {
        margin-block: 8px 22px
    }

    .article-section>p:not(.kicker) {
        margin-block: 16px;
        font-size: 1.02rem
    }

    .article-lead {
        font-size: 1.14rem !important;
        color: var(--text-soft);
        line-height: 1.8
    }

    .architecture-map {
        position: relative;
        margin-block: 32px;
        padding: var(--space-4);
        border: var(--border);
        border-radius: var(--radius-xl);
        background: var(--bg-soft);
        overflow: hidden
    }
    @media (width > 768px) {
        .architecture-map {
            padding: var(--space-6);
        }
    }
    @media (width > 1024px) {
        .architecture-map {
            padding: var(--space-8);
        }
    }

    .map-tier {
        position: relative;
        padding: 26px 12px 14px;
        border: var(--border);
        border-radius: 12px;
        background: var(--bg-surface)
    }

    .tier-label {
        position: absolute;
        inset-block-start: -1px;
        inset-inline-start: 12px;
        translate: 0 -50%;
        padding: 3px 9px;
        border: var(--border);
        border-radius: var(--radius-pill);
        background: var(--bg-surface);
        color: var(--primary);
        font-size: var(--fs-xs);
        font-weight: 700;
        text-transform: uppercase
    }

    .map-nodes {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 8px
    }

    .map-node {
        display: flex;
        min-width: 0;
        flex-direction: column;
        align-items: center;
        padding: 10px 5px;
        text-align: center
    }

    .node-icon,
    .app-icon,
    .vb-icon {
        display: grid;
        place-items: center;
        width: 36px;
        height: 36px;
        border-radius: 10px;
        background: var(--bg-soft);
        color: var(--primary);
        font-weight: 700;
        font-style: normal;
        margin-block-end: 8px
    }

    .node-icon.tech,
    .app-icon.technician {
        background: var(--success-bg);
        color: var(--success)
    }

    .node-icon.shop,
    .app-icon.shop {
        background: var(--warning-bg);
        color: var(--warning)
    }

    .map-node strong {
        font-size: var(--fs-sm);
        color: var(--text-heading)
    }

    .map-node small {
        color: var(--text-muted);
        font-size: var(--fs-xs);
    }

    .map-connector {
        height: 48px;
        display: grid;
        place-items: center;
        position: relative
    }

    .map-connector span {
        height: 100%;
        width: 1px;
        background: linear-gradient(var(--primary), var(--secondary));
    }

    .map-connector span::after {
        content: "";
        position: absolute;
        inset-block-end: 2px;
        inset-inline-start: calc(50% - 4px);
        width: 9px;
        height: 9px;
        border-inline-end: 2px solid var(--secondary);
        border-block-end: 2px solid var(--secondary);
        transform: rotate(315deg);
    }

    .map-connector em {
        position: absolute;
        padding: 2px 8px;
        background: var(--bg-soft);
        color: var(--text-muted);
        font-style: normal;
        font-size: .75rem
    }

    .map-wide {
        display: grid;
        grid-template-columns: 1fr;
        gap: 8px
    }

    @media (width > 480px) {
        .map-wide {
            grid-template-columns: 1fr 1fr
        }
    }

    .map-wide>div {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 10px;
        border-radius: 8px;
        background: var(--bg-soft)
    }

    .map-wide svg {
        width: 25px;
        height: 25px;
        fill: none;
        stroke: var(--primary);
        stroke-width: 1.6;
        flex: none
    }

    .map-wide span {
        display: grid;
        min-width: 0
    }

    .map-wide strong {
        font-size: var(--fs-sm);
        color: var(--text-heading)
    }

    .map-wide small {
        font-size: var(--fs-xs);
        color: var(--text-muted)
    }

    .database-icon {
        width: 28px;
        height: 28px !important;
        border: 2px solid var(--primary);
        border-radius: 50% / 25%;
        position: relative;
        flex: none
    }

    .database-icon::before,
    .database-icon::after {
        content: "";
        position: absolute;
        inset-inline: 0;
        height: 5px;
        border-block-end: 1px solid var(--primary);
        border-radius: 50%
    }

    .database-icon::before {
        inset-block-start: 6px
    }

    .database-icon::after {
        inset-block-start: 13px
    }

    .vb-icon {
        width: 30px;
        height: 30px;
        margin: 0;
        border-radius: 8px;
        font-size: .62rem
    }

    .external-services {
        display: flex;
        justify-content: center;
        gap: 8px;
        margin-block-start: 12px
    }

    .external-services span {
        padding: 5px 10px;
        border: 1px dashed var(--border-strong);
        border-radius: 6px;
        color: var(--text-soft);
        font: 500 var(--fs-xs) var(--font-mono);
    }

    

    

    .state-flow {
        display: grid;
        grid-template-columns: 1fr;
        gap: 8px;
        margin-block: 30px
    }

    .state-flow>div {
        display: flex;
        align-items: center;
        gap: var(--space-3);
        padding: var(--space-3);
        border: var(--border);
        border-radius: 12px;
        background: var(--bg-surface)
    }

    .state-flow strong {
        font-size: .82rem;
        color: var(--text-heading)
    }

    .state-flow small {
        margin-inline-start: auto;
        color: var(--text-muted);
        font: 600 .67rem var(--font-mono)
    }

    .state-icon {
        display: grid;
        place-items: center;
        width: 34px;
        height: 34px;
        border-radius: 9px;
        background: var(--bg-soft);
        color: var(--text-soft);

        --icon-size: 18px;
    }

    .state-flow > i {
        display: block;
        width: 1px;
        height: 14px;
        background: var(--border-strong);
        margin-inline-start: 31px;
    }

    @media (width > 640px) {
        .state-flow {
            grid-template-columns: 1fr auto 1fr auto 1fr;
            align-items: center
        }

        .state-flow>i {
            width: 24px;
            height: 1px;
            margin: 0
        }
    }

    .tabs-container {
        margin-block: 28px;
        border: var(--border);
        border-radius: var(--radius-lg);
        background: var(--bg-surface);
        overflow: hidden;

        & .tab{
            flex: 1;
            justify-content: center;
        }
    }
   
    .tab-list .tab[aria-selected="true"]{
            border-bottom: 3px solid var(--primary) !important;
    }

    .tabpanel {
        padding: 22px
    }

    .tabpanel h3 {
        font-size: 1rem
    }

    .tabpanel p,
    .tabpanel ul {
        margin-block-start: 10px;
        font-size: .88rem
    }

    .tabpanel ul {
        padding-inline-start: 20px
    }

    .tabpanel li {
        margin-block: 6px
    }



    .code-block {
        direction: ltr;
        border: 1px solid #263247;
        border-radius: 12px;
        background: var(--bg-code);
        overflow: hidden;
        color: #d9e2f2;
    }

    .code-block summary {
        min-height: 48px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        padding: 0 14px;
        border-block-end: 1px solid rgba(255, 255, 255, .09);
        cursor: pointer;
        list-style: none;
        font: 650 .72rem var(--font-mono);
        color: #9fb0c8;
    }

    .code-block summary::-webkit-details-marker {
        display: none
    }   

    .code-block pre {
        max-height: 480px;
        padding: var(--space-4);
        margin: 0;
        overflow: auto;
        direction: ltr;
        text-align: left;
        tab-size: 2;
    }

    .code-block code {
        font-size: var(--fs-sm);
        line-height: 1.75;
        color: #d9e2f2;
    }


    .payments-timeline {
        position: relative;
        list-style: none;
        margin-block: 30px
    }

    .payments-timeline::before {
        content: "";
        position: absolute;
        inset-block: 16px;
        inset-inline-start: 17px;
        width: 1px;
        background: var(--border-strong)
    }

    .payments-timeline li {
        position: relative;
        display: grid;
        grid-template-columns: 36px 1fr;
        gap: 15px;
        padding-block-end: 24px
    }

    .payments-timeline li>span {
        position: relative;
        z-index: 1;
        display: grid;
        place-items: center;
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: var(--bg-soft);
        border: 1px solid color-mix(in srgb, var(--primary) 28%, transparent);
        color: var(--primary);
        font: 800 .72rem var(--font-mono)
    }

    .payments-timeline h3 {
        font-size: .95rem;
        margin-bottom: 5px;
    }

    .payments-timeline p {
        font-size: .84rem;
        color: var(--text-soft);
        margin-block-start: 4px
    }

    .section-title-row {
        display: flex;
        align-items: end;
        justify-content: space-between;
        gap: 20px;
        margin-block: 8px 24px
    }

    .section-title-row h2 {
        margin: 0
    }



    .application-grid {
        display: grid;
        gap: var(--space-4);
    }   
    @media (width > 640px) {
        .application-grid .product-card:last-child {
            grid-column: 1/-1;
        }
    }
    @media (width > 768px) {
        .application-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .application-grid .product-card:last-child {
            grid-column: auto;
        }
    }
    @media (width > 1200px) {
        .application-grid {
            grid-template-columns: repeat(3, 1fr);
        }
    }

    .product-card {
        container-type: inline-size;
        position: relative;
        font-size: var(--fs-sm);
        padding: var(--space-4);
        border: var(--border);
        border-radius: var(--radius-lg);
        background: var(--bg-surface);
        transition: transform var(--transition-normal), border var(--transition-normal), box-shadow var(--transition-normal);
    
        & h3{
            font-size: var(--fs-lg);
        }
    }

    .product-card:hover {
        transform: translateY(-4px);
        border-color: color-mix(in srgb, var(--primary) 30%, var(--border-color));
        box-shadow: var(--shadow)
    }

    .product-card-head {
        display: flex;
        flex-flow: column wrap;
        align-items: center;
        margin-bottom: var(--space-3);
    }

    .app-icon {
        width: 44px;
        height: 44px;
    }

    .product-card p {        
        color: var(--text-soft)
    }

    .product-card ul {
        margin-block-start: 17px;

        & li{
            line-height: 1.6;
        }
    }



    

    .impact-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        margin-block: 30px
    }

    @media (width > 768px) {
        .impact-grid {
            grid-template-columns: repeat(3, 1fr);
        }
    }

    .impact-card {
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--space-4);
        border: var(--border);
        border-radius: var(--radius-lg);
        background: var(--bg-surface)
    }
    @media (width > 480px) {
        .impact-card {
            min-height: 155px;
        }
    }


    .metric-icon {
        display: grid;
        place-items: center;
        --icon-size: 22px;
        width: 36px;
        height: 36px;
        border-radius: 10px;
        background: var(--success);
        color: var(--white);
    }

    .impact-card strong {
        margin-block-start: 20px;
        color: var(--text-heading);
        font-size: var(--fs-lg);
    }

    .impact-card p {
        font-size: var(--fs-sm);
        color: var(--text-soft);
        line-height: 1.55;
    }


    .principle {
        position: relative;
        margin-block-start: 34px;
        padding: 28px;
        border-radius: var(--radius-xl);
        background: var(--dark);
        color: #fff;
        overflow: hidden
    }
    .principle::before {
        content: "“";
        position: absolute;
        inset-block-start: -32px;
        inset-inline-end: 18px;
        font: 800 9rem Georgia;
        color: rgba(255, 255, 255, .08)
    }
    .principle p {
        position: relative;
        font-size: clamp(1.25rem, 1rem + 1vw, 1.7rem);
        font-weight: 750;
        line-height: 1.55
    }
    .principle footer {
        margin-block-start: 15px;
        color: #93a4be;
        font-size: var(--fs-sm);
        font-weight: 600;
    }



    .accordion {
        border-block-start: var(--border)
    }

    .accordion details {
        border-block-end: var(--border)
    }



    .article-pagination {
        display: grid;
        grid-template-columns: 1fr;
        gap: var(--space-3);
        margin-block: var(--space-8) 0;
    }
    @media (width > 480px) {
        .article-pagination {            
            grid-template-columns: 1fr 1fr;
        }

        .article-pagination a:last-child {
            text-align: start;
        }
    }

    .article-pagination a {
        display: grid;
        gap: 4px;
        min-height: 92px;
        padding: 17px;
        border: var(--border);
        border-radius: 12px;
        background: var(--bg-surface);
        transition: background var(--transition-normal), border var(--transition-normal)
    }

    .article-pagination a:hover {
        background: var(--bg-soft);
        border-color: var(--primary)
    }

    .article-pagination a:last-child {
        text-align: end
    }

    .article-pagination small {
        color: var(--text-muted);
        font-size: var(--fs-xs);
    }

    .article-pagination strong {
        color: var(--text-heading);
        font-size: var(--fs-sm);
    }



    .side-actions {
        display: none
    }
    @media (width > 768px) {
        .article-shell {
            grid-template-columns: 1fr 52px;
            justify-content: space-between;
            gap: 28px
        }

        .side-actions {
            display: grid;
            gap: 8px;
            position: sticky;
            inset-block-start: calc(var(--header-height) + 24px);
            align-self: start
        }

        .side-actions .tooltip::after {
            inset-block-start: 50%;
            inset-inline-start: auto;
            inset-inline-end: calc(100% + 7px);
            translate: 4px -50%
        }

        .side-actions .tooltip:hover::after,
        .side-actions .tooltip:focus-visible::after {
            translate: 0 -50%
        }
    }

    @media (width > 1024px) {
        .article-shell {
            grid-template-columns: 190px minmax(0, 780px) 52px;
            justify-content: space-between;
            gap: 28px
        }

        .toc {
            display: block;
            position: sticky;
            inset-block-start: calc(var(--header-height) + 24px);
            align-self: start;
            max-height: calc(100vh - var(--header-height) - 48px)
        }

        .toc-head {
            display: flex;
            justify-content: space-between;
            padding-block-end: 12px;
            border-block-end: var(--border);
            color: var(--text-muted);
            font-size: .68rem;
            font-weight: 800;
            text-transform: uppercase
        }

        .toc nav {
            display: grid;
            margin-block-start: 8px
        }

        .toc nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            min-height: 39px;
            padding-inline: 8px;
            border-inline-start: 2px solid var(--border-color);
            color: var(--text-muted);
            font-size: .74rem;
            font-weight: 650;
            transition: all var(--transition-normal-fast)
        }

        .toc nav a span:first-child {
            font: 600 .59rem var(--font-mono)
        }

        .toc nav a:hover {
            color: var(--text-heading);
            background: var(--bg-soft)
        }

        .toc nav a.active {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--primary-soft)
        }
    }
    @media (min-width:1200px) {
        .article-shell {
            grid-template-columns: 215px minmax(0, 810px) 52px;
            gap: 44px
        }
    }
    @media (min-width:1440px) {
        .article-shell {
            grid-template-columns: 225px minmax(0, 860px) 52px;        
            padding-block: 90px;
        }
    }
    @media (min-width:1600px) {
        .article-shell {
            grid-template-columns: 240px minmax(0, 900px) 56px;
        }
    }