.platform-guide-page {
    background: var(--pf-paper);
    color: var(--pf-ink);
}

.platform-guide-hero {
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    background: var(--pf-ink);
    color: var(--pf-white);
}

.platform-guide-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(240px, 0.32fr);
    gap: 72px;
    align-items: end;
    padding-top: 76px;
    padding-bottom: 68px;
}

.platform-guide-hero .portfolio-kicker {
    color: var(--pf-lime);
}

.platform-guide-hero h1 {
    max-width: 920px;
    margin: 0;
    color: var(--pf-white);
    font-family: "Space Grotesk", "Manrope", sans-serif;
    font-size: 5.1rem;
    line-height: 0.98;
    letter-spacing: 0;
}

.platform-guide-lead {
    max-width: 780px;
    margin: 24px 0 0;
    color: rgba(255, 255, 255, 0.72);
    font-size: 1.08rem;
    line-height: 1.72;
}

.platform-guide-meta {
    margin: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.24);
}

.platform-guide-meta div {
    display: grid;
    gap: 5px;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.platform-guide-meta dt {
    color: var(--pf-lime);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.66rem;
    font-weight: 800;
    text-transform: uppercase;
}

.platform-guide-meta dd {
    margin: 0;
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.8rem;
    line-height: 1.45;
}

.platform-guide-main {
    background: var(--pf-paper);
}

.platform-guide-layout {
    display: grid;
    grid-template-columns: 220px minmax(0, 850px);
    gap: clamp(52px, 8vw, 120px);
    justify-content: center;
    padding-top: 72px;
    padding-bottom: 92px;
}

.platform-guide-toc {
    position: sticky;
    top: 28px;
    align-self: start;
}

.platform-guide-toc > p {
    margin: 0 0 18px;
    color: var(--pf-green);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
}

.platform-guide-toc ol {
    display: grid;
    gap: 2px;
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--pf-line);
    list-style: none;
}

.platform-guide-toc a {
    display: grid;
    grid-template-columns: 28px 1fr;
    gap: 8px;
    padding: 11px 0;
    border-bottom: 1px solid var(--pf-line);
    color: var(--pf-muted);
    font-size: 0.74rem;
    line-height: 1.35;
    text-decoration: none;
}

.platform-guide-toc a:hover {
    color: var(--pf-green);
}

.platform-guide-toc span,
.platform-guide-index {
    color: var(--pf-coral);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-weight: 800;
}

.platform-guide-article {
    min-width: 0;
}

.platform-guide-section {
    scroll-margin-top: 24px;
    padding: 0 0 76px;
    border-bottom: 1px solid var(--pf-line);
    margin: 0 0 76px;
}

.platform-guide-index {
    margin: 0 0 14px;
    font-size: 0.72rem;
}

.platform-guide-section > h2,
.platform-guide-related h2,
.platform-guide-author h2 {
    margin: 0;
    font-family: "Space Grotesk", "Manrope", sans-serif;
    font-size: 3rem;
    line-height: 1.08;
    letter-spacing: 0;
}

.platform-guide-section > p:not(.platform-guide-index),
.platform-guide-related p:not(.portfolio-kicker),
.platform-guide-author p:not(.portfolio-kicker) {
    margin: 20px 0 0;
    color: var(--pf-muted);
    font-size: 1rem;
    line-height: 1.78;
}

.platform-guide-opening > p:not(.platform-guide-index) {
    color: #40524a;
    font-size: 1.08rem;
}

.platform-guide-principles,
.platform-checklist {
    display: grid;
    gap: 0;
    margin: 34px 0 0;
    padding: 0;
    border-top: 1px solid var(--pf-line);
    list-style: none;
}

.platform-guide-principles li,
.platform-checklist li {
    position: relative;
    padding: 18px 12px 18px 34px;
    border-bottom: 1px solid var(--pf-line);
    color: #34463e;
    line-height: 1.58;
}

.platform-guide-principles li::before {
    position: absolute;
    top: 29px;
    left: 4px;
    width: 13px;
    height: 3px;
    background: var(--pf-lime);
    content: "";
}

.platform-layer-list,
.platform-reference-path {
    margin: 36px 0 0;
    padding: 0;
    border-top: 1px solid var(--pf-line);
    list-style: none;
}

.platform-layer-list li {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr) minmax(160px, 0.32fr);
    gap: 22px;
    align-items: start;
    padding: 24px 0;
    border-bottom: 1px solid var(--pf-line);
}

.platform-layer-list > li > span,
.platform-reference-path > li > span {
    color: var(--pf-coral);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.7rem;
    font-weight: 800;
}

.platform-layer-list h3,
.platform-reference-path h3,
.platform-failure-list h3 {
    margin: 0;
    font-size: 1rem;
}

.platform-layer-list p,
.platform-reference-path p,
.platform-failure-list p {
    margin: 7px 0 0;
    color: var(--pf-muted);
    font-size: 0.86rem;
    line-height: 1.62;
}

.platform-layer-list small {
    color: var(--pf-green);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.66rem;
    line-height: 1.5;
}

.platform-reference-path {
    counter-reset: path;
}

.platform-reference-path li {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 22px;
    padding: 22px 0;
    border-bottom: 1px solid var(--pf-line);
}

.platform-gitops-flow {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    margin: 36px 0 0;
    overflow-x: auto;
    border: 1px solid var(--pf-line);
    background: var(--pf-white);
}

.platform-gitops-flow div {
    position: relative;
    min-width: 118px;
    min-height: 118px;
    padding: 18px 14px;
    border-right: 1px solid var(--pf-line);
}

.platform-gitops-flow div:last-child {
    border-right: 0;
}

.platform-gitops-flow span,
.platform-gitops-flow strong {
    display: block;
}

.platform-gitops-flow span {
    color: var(--pf-coral);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.65rem;
}

.platform-gitops-flow strong {
    margin-top: 34px;
    font-size: 0.78rem;
    line-height: 1.35;
}

.platform-checklist li {
    display: grid;
    grid-template-columns: 22px 1fr;
    gap: 8px;
    padding-left: 10px;
}

.platform-checklist span {
    color: var(--pf-green);
    font-weight: 900;
}

.platform-metric-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin: 34px 0 0;
    border-top: 1px solid var(--pf-line);
    border-left: 1px solid var(--pf-line);
}

.platform-metric-list div {
    min-height: 150px;
    padding: 24px;
    border-right: 1px solid var(--pf-line);
    border-bottom: 1px solid var(--pf-line);
    background: var(--pf-white);
}

.platform-metric-list dt {
    color: var(--pf-green);
    font-family: "Space Grotesk", "Manrope", sans-serif;
    font-size: 1.15rem;
    font-weight: 700;
}

.platform-metric-list dd {
    margin: 12px 0 0;
    color: var(--pf-muted);
    font-size: 0.84rem;
    line-height: 1.6;
}

.platform-failure-list {
    margin-top: 34px;
    border-top: 1px solid var(--pf-line);
}

.platform-failure-list section {
    display: grid;
    grid-template-columns: minmax(180px, 0.35fr) minmax(0, 1fr);
    gap: 28px;
    padding: 22px 0;
    border-bottom: 1px solid var(--pf-line);
}

.platform-failure-list p {
    margin-top: 0;
}

.platform-question-list {
    margin-top: 34px;
    border-top: 1px solid var(--pf-line);
}

.platform-question-list details {
    border-bottom: 1px solid var(--pf-line);
}

.platform-question-list summary {
    padding: 20px 36px 20px 0;
    cursor: pointer;
    color: var(--pf-ink);
    font-weight: 800;
    line-height: 1.45;
}

.platform-question-list p {
    max-width: 720px;
    margin: -4px 0 22px;
    color: var(--pf-muted);
    line-height: 1.7;
}

.platform-guide-related {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 36px;
    align-items: end;
    padding: 0 0 24px;
}

.platform-guide-author {
    border-top: 1px solid var(--pf-line);
    background: var(--pf-white);
}

.platform-guide-author-inner {
    display: grid;
    grid-template-columns: 112px minmax(0, 1fr) auto;
    gap: 30px;
    align-items: center;
    padding-top: 52px;
    padding-bottom: 52px;
}

.platform-guide-author img {
    width: 112px;
    height: 112px;
    border: 1px solid var(--pf-line);
    border-radius: 4px;
    object-fit: cover;
}

.platform-guide-author h2 {
    font-size: 2.35rem;
}

@media (max-width: 980px) {
    .platform-guide-hero-grid,
    .platform-guide-layout {
        grid-template-columns: 1fr;
    }

    .platform-guide-hero-grid {
        gap: 38px;
        padding-top: 58px;
    }

    .platform-guide-hero h1 {
        font-size: 4rem;
    }

    .platform-guide-section > h2,
    .platform-guide-related h2 {
        font-size: 2.35rem;
    }

    .platform-guide-author h2 {
        font-size: 2rem;
    }

    .platform-guide-meta {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .platform-guide-meta div {
        padding-right: 14px;
    }

    .platform-guide-layout {
        gap: 56px;
    }

    .platform-guide-toc {
        position: static;
    }

    .platform-guide-toc ol {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .platform-guide-author-inner {
        grid-template-columns: 96px minmax(0, 1fr);
    }

    .platform-guide-author-inner > .portfolio-button {
        grid-column: 2;
        justify-self: start;
    }
}

@media (max-width: 640px) {
    .platform-guide-hero-grid {
        gap: 30px;
        padding-top: 42px;
        padding-bottom: 42px;
    }

    .platform-guide-hero h1 {
        font-size: 2.45rem;
    }

    .platform-guide-section > h2,
    .platform-guide-related h2 {
        font-size: 1.85rem;
    }

    .platform-guide-author h2 {
        font-size: 1.65rem;
    }

    .platform-guide-lead {
        font-size: 0.96rem;
    }

    .platform-guide-meta,
    .platform-guide-toc ol,
    .platform-metric-list {
        grid-template-columns: 1fr;
    }

    .platform-guide-layout {
        padding-top: 42px;
        padding-bottom: 64px;
    }

    .platform-guide-section {
        padding-bottom: 54px;
        margin-bottom: 54px;
    }

    .platform-layer-list li {
        grid-template-columns: 30px minmax(0, 1fr);
        gap: 14px;
    }

    .platform-layer-list small {
        grid-column: 2;
    }

    .platform-failure-list section,
    .platform-guide-related,
    .platform-guide-author-inner {
        grid-template-columns: 1fr;
    }

    .platform-guide-author-inner > .portfolio-button {
        grid-column: 1;
    }

    .platform-guide-author img {
        width: 88px;
        height: 88px;
    }
}