:root {
    color-scheme: light;
    --academy-ink: #171717;
    --academy-muted: #666666;
    --academy-soft: #f6f6f4;
    --academy-line: #e5e5e2;
    --academy-accent: #0f766e;
    --academy-accent-soft: #e6f4f1;
    --academy-warm: #f7f0df;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: #fbfbfa;
    color: var(--academy-ink);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    letter-spacing: 0;
}

a {
    color: inherit;
    text-decoration: none;
}

.academy-header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    border-bottom: 1px solid var(--academy-line);
    background: rgba(251, 251, 250, 0.94);
    padding: 14px clamp(18px, 4vw, 56px);
    backdrop-filter: blur(16px);
}

.academy-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 700;
    white-space: nowrap;
}

.academy-brand img {
    display: block;
    height: 32px;
    width: 32px;
}

.academy-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: 6px;
}

.academy-nav a {
    border-radius: 6px;
    color: #343434;
    font-size: 13px;
    padding: 8px 10px;
}

.academy-nav a:hover {
    background: #f0f0ee;
}

.academy-section,
.academy-grid-section,
.academy-resource-shell,
.academy-article,
.academy-related,
.academy-footer {
    margin: 0 auto;
    max-width: 1180px;
    padding-left: clamp(18px, 4vw, 42px);
    padding-right: clamp(18px, 4vw, 42px);
}

.academy-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 28px;
    margin: 0 auto;
    max-width: 1180px;
    padding-left: clamp(18px, 4vw, 42px);
    padding-right: clamp(18px, 4vw, 42px);
    padding-top: 42px;
    padding-bottom: 28px;
}

.academy-hero-copy {
    max-width: 760px;
}

.academy-kicker {
    color: var(--academy-accent);
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 18px;
}

.academy-hero h1,
.academy-article-head h1 {
    font-size: clamp(34px, 5vw, 64px);
    font-weight: 800;
    letter-spacing: 0;
    line-height: 1.05;
    margin: 0;
}

.academy-hero p,
.academy-article-head p {
    color: var(--academy-muted);
    font-size: 17px;
    line-height: 1.6;
    margin: 16px 0 0;
    max-width: 760px;
}

.academy-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 28px;
}

.academy-primary,
.academy-secondary,
.academy-side-card a,
.academy-text-link {
    border-radius: 6px;
    display: inline-flex;
    font-size: 14px;
    font-weight: 700;
}

.academy-primary {
    background: #151515;
    color: #fff;
    padding: 12px 16px;
}

.academy-secondary {
    border: 1px solid var(--academy-line);
    padding: 11px 15px;
}

.academy-featured {
    align-self: end;
    background: var(--academy-warm);
    border: 1px solid #eadcbf;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    min-height: 250px;
    padding: 24px;
}

.academy-featured span,
.academy-card-meta span,
.academy-tags span,
.academy-category-list span {
    border: 1px solid var(--academy-line);
    border-radius: 999px;
    color: #4d4d4d;
    display: inline-flex;
    font-size: 12px;
    line-height: 1;
    padding: 7px 9px;
}

.academy-featured strong {
    font-size: 25px;
    line-height: 1.22;
}

.academy-featured strong a:hover {
    color: var(--academy-accent);
}

.academy-featured small {
    color: #625b4a;
    font-size: 14px;
    line-height: 1.7;
}

.academy-section,
.academy-grid-section,
.academy-related {
    padding-bottom: 42px;
    padding-top: 24px;
}

.academy-resource-shell {
    display: grid;
    gap: 28px;
    grid-template-columns: 188px minmax(0, 1fr);
    padding-bottom: 54px;
    padding-top: 42px;
}

.academy-resource-menu {
    align-self: start;
    background: #fff;
    border: 1px solid var(--academy-line);
    border-radius: 8px;
    display: grid;
    gap: 4px;
    padding: 8px;
    position: sticky;
    top: 86px;
}

.academy-resource-menu a {
    border-radius: 6px;
    color: #343434;
    font-size: 14px;
    font-weight: 700;
    padding: 11px 12px;
}

.academy-resource-menu a:hover {
    background: var(--academy-accent-soft);
    color: var(--academy-accent);
}

.academy-resource-main,
.academy-resource-content {
    display: grid;
    gap: 30px;
    min-width: 0;
}

.academy-resource-main > .academy-hero {
    max-width: none;
    padding: 0 0 8px;
}

.academy-resource-content .academy-grid-section {
    padding: 0;
}

.academy-section-head {
    align-items: end;
    display: flex;
    gap: 18px;
    justify-content: space-between;
    margin-bottom: 18px;
}

.academy-section-head h2 {
    font-size: 24px;
    margin: 0;
}

.academy-section-head p {
    color: var(--academy-muted);
    font-size: 14px;
    line-height: 1.7;
    margin: 0;
    max-width: 520px;
}

.academy-category-list,
.academy-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.academy-card-grid {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.academy-tool-grid {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.academy-tool-card {
    background: #fff;
    border: 1px solid var(--academy-line);
    border-radius: 8px;
    display: grid;
    gap: 12px;
    min-height: 190px;
    padding: 20px;
    position: relative;
}

.academy-tool-card:hover {
    border-color: #c9ded9;
    box-shadow: 0 14px 34px rgba(15, 118, 110, 0.08);
    transform: translateY(-1px);
}

.academy-tool-icon {
    align-items: center;
    background: var(--academy-accent-soft);
    border: 1px solid #c7e6df;
    border-radius: 8px;
    color: var(--academy-accent);
    display: inline-flex;
    font-size: 13px;
    font-weight: 800;
    height: 42px;
    justify-content: center;
    line-height: 1;
    width: 42px;
}

.academy-tool-card strong {
    font-size: 19px;
    line-height: 1.3;
}

.academy-resource-fit {
    background: var(--academy-soft);
    border: 1px solid var(--academy-line);
    border-radius: 999px;
    color: #4d4d4d;
    display: inline-flex;
    font-size: 12px;
    font-weight: 700;
    line-height: 1;
    padding: 7px 9px;
    width: fit-content;
}

.academy-tool-card small {
    color: var(--academy-muted);
    font-size: 14px;
    line-height: 1.7;
}

.academy-tool-card em {
    color: var(--academy-accent);
    font-size: 13px;
    font-style: normal;
    font-weight: 800;
}

.academy-click-card {
    cursor: pointer;
}

.academy-card-link {
    border-radius: inherit;
    inset: 0;
    position: absolute;
    z-index: 1;
}

.academy-click-card > :not(.academy-card-link) {
    position: relative;
    z-index: 2;
}

.academy-click-card strong,
.academy-click-card small,
.academy-click-card .academy-resource-fit {
    pointer-events: none;
}

.academy-card-action {
    align-self: end;
    color: var(--academy-accent);
    font-size: 13px;
    font-weight: 800;
    line-height: 1;
    margin-top: auto;
}

.academy-text-link {
    align-self: end;
    color: var(--academy-accent);
    line-height: 1;
    margin-top: auto;
    padding-top: 4px;
    width: fit-content;
}

.academy-text-link:hover {
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

.academy-vps-card {
    background: linear-gradient(180deg, #ffffff 0%, #fbf8f1 100%);
}

.academy-card-grid-compact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.academy-card {
    background: #fff;
    border: 1px solid var(--academy-line);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    min-height: 245px;
    padding: 20px;
}

.academy-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 16px;
}

.academy-card h3 {
    font-size: 20px;
    line-height: 1.35;
    margin: 0;
}

.academy-card h3 a:hover,
.academy-article-body a:hover,
.academy-footer a:hover,
.academy-breadcrumb a:hover {
    color: var(--academy-accent);
}

.academy-card p {
    color: var(--academy-muted);
    flex: 1;
    font-size: 14px;
    line-height: 1.75;
    margin: 14px 0 18px;
}

.academy-article {
    padding-bottom: 54px;
    padding-top: 34px;
}

.academy-breadcrumb {
    color: var(--academy-muted);
    display: flex;
    flex-wrap: wrap;
    font-size: 13px;
    gap: 8px;
    margin-bottom: 32px;
}

.academy-article-head {
    border-bottom: 1px solid var(--academy-line);
    padding-bottom: 28px;
}

.academy-article-layout {
    display: grid;
    gap: 42px;
    grid-template-columns: minmax(0, 1fr) 310px;
    padding-top: 34px;
}

.academy-article-body {
    background: #fff;
    border: 1px solid var(--academy-line);
    border-radius: 8px;
    padding: clamp(22px, 4vw, 42px);
}

.academy-article-body section + section {
    border-top: 1px solid var(--academy-line);
    margin-top: 32px;
    padding-top: 28px;
}

.academy-article-body .academy-summary {
    background: var(--academy-soft);
    border: 1px solid var(--academy-line);
    border-radius: 8px;
    margin-bottom: 32px;
    padding: 20px;
}

.academy-article-body h2 {
    font-size: 26px;
    line-height: 1.3;
    margin: 0 0 14px;
}

.academy-article-body p {
    color: #333;
    font-size: 16px;
    line-height: 1.9;
    margin: 0;
}

.academy-article-body p + p {
    margin-top: 14px;
}

.academy-article-body ul {
    color: #333;
    display: grid;
    gap: 10px;
    line-height: 1.8;
    margin: 0;
    padding-left: 18px;
}

.academy-article-body a {
    color: #0a6f66;
    font-weight: 700;
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

.academy-faq {
    display: grid;
    gap: 10px;
}

.academy-faq details {
    background: #fbfbfa;
    border: 1px solid var(--academy-line);
    border-radius: 8px;
    padding: 14px 16px;
}

.academy-faq summary {
    cursor: pointer;
    font-weight: 700;
}

.academy-faq details p {
    color: var(--academy-muted);
    font-size: 15px;
    margin-top: 10px;
}

.academy-sidebar {
    display: grid;
    gap: 14px;
    height: fit-content;
    position: sticky;
    top: 84px;
}

.academy-side-card {
    background: var(--academy-soft);
    border: 1px solid var(--academy-line);
    border-radius: 8px;
    padding: 18px;
}

.academy-side-card strong {
    display: block;
    font-size: 16px;
}

.academy-side-card p {
    color: var(--academy-muted);
    font-size: 14px;
    line-height: 1.7;
    margin: 10px 0 14px;
}

.academy-side-card a {
    background: #fff;
    border: 1px solid var(--academy-line);
    padding: 10px 12px;
}

.academy-footer {
    align-items: center;
    border-top: 1px solid var(--academy-line);
    color: var(--academy-muted);
    display: flex;
    gap: 20px;
    justify-content: space-between;
    padding-bottom: 30px;
    padding-top: 30px;
}

.academy-footer strong {
    color: var(--academy-ink);
    margin-right: 8px;
}

.academy-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: flex-end;
}

.academy-footer a {
    font-size: 14px;
    font-weight: 700;
}

@media (max-width: 900px) {
    .academy-header,
    .academy-section-head,
    .academy-footer {
        align-items: flex-start;
        flex-direction: column;
    }

    .academy-hero,
    .academy-resource-shell,
    .academy-article-layout,
    .academy-card-grid,
    .academy-tool-grid,
    .academy-card-grid-compact {
        grid-template-columns: 1fr;
    }

    .academy-resource-menu {
        display: flex;
        gap: 6px;
        overflow-x: auto;
        position: sticky;
        top: 72px;
        z-index: 5;
    }

    .academy-resource-menu a {
        white-space: nowrap;
    }

    .academy-featured {
        min-height: 0;
    }

    .academy-sidebar {
        position: static;
    }
}

@media (max-width: 560px) {
    .academy-nav {
        justify-content: flex-start;
    }

    .academy-nav a {
        padding-left: 0;
    }

    .academy-hero h1,
    .academy-article-head h1 {
        font-size: 34px;
    }

    .academy-hero p,
    .academy-article-head p {
        font-size: 15px;
    }
}