:root {
    --kt-ink: #17363f;
    --kt-ink-soft: #526a70;
    --kt-paper: #f6f4ee;
    --kt-white: #fffefb;
    --kt-line: #d8dfdc;
    --kt-sage: #6f9287;
    --kt-sage-light: #e3ede8;
    --kt-accent: #a96d42;
    --kt-shadow: 0 18px 45px rgba(24, 54, 63, .08);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--kt-paper);
    color: var(--kt-ink);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    margin: 0;
}

.skip-link {
    background: var(--kt-ink);
    color: #fff;
    left: 16px;
    padding: 12px 16px;
    position: fixed;
    top: -80px;
    z-index: 100;
}

.skip-link:focus {
    top: 16px;
}

.knowledge-app {
    margin: 0 auto;
    max-width: 1440px;
    min-height: 100vh;
    padding: 0 42px 34px;
}

.knowledge-site-header {
    align-items: center;
    border-bottom: 1px solid var(--kt-line);
    display: flex;
    justify-content: space-between;
    padding: 23px 0;
}

.knowledge-brand {
    align-items: center;
    color: var(--kt-ink);
    display: flex;
    gap: 12px;
    text-decoration: none;
}

.knowledge-brand > span:last-child {
    display: grid;
    line-height: 1.05;
}

.knowledge-brand strong {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 22px;
}

.knowledge-brand small {
    color: var(--kt-ink-soft);
    font-size: 11px;
    letter-spacing: .14em;
    text-transform: uppercase;
}

.knowledge-brand-mark {
    border: 1px solid var(--kt-sage);
    border-radius: 50%;
    display: grid;
    height: 38px;
    place-items: center;
    position: relative;
    width: 38px;
}

.knowledge-brand-mark span {
    background: var(--kt-sage);
    height: 2px;
    position: absolute;
    width: 18px;
}

.knowledge-brand-mark span:last-child {
    transform: rotate(90deg);
}

.knowledge-site-nav {
    align-items: center;
    display: flex;
    gap: 26px;
}

.knowledge-site-nav a {
    color: var(--kt-ink-soft);
    font-size: 14px;
    font-weight: 700;
    padding: 8px 0;
    text-decoration: none;
}

.knowledge-site-nav a[aria-current="page"] {
    color: var(--kt-ink);
    text-decoration: underline;
    text-decoration-color: var(--kt-accent);
    text-decoration-thickness: 2px;
    text-underline-offset: 8px;
}

.knowledge-site-nav a:hover,
.knowledge-site-nav a:focus-visible,
.knowledge-brand:focus-visible,
.knowledge-button:focus-visible,
.category-filter a:focus-visible,
.audience-filter a:focus-visible,
.catalog-card a:focus-visible,
.article-toc a:focus-visible,
.knowledge-footer a:focus-visible,
.knowledge-breadcrumbs a:focus-visible {
    outline: 3px solid rgba(111, 146, 135, .55);
    outline-offset: 4px;
}

.knowledge-breadcrumbs {
    align-items: center;
    color: var(--kt-ink-soft);
    display: flex;
    flex-wrap: wrap;
    font-size: 13px;
    gap: 8px;
    margin-bottom: 32px;
}

.knowledge-breadcrumbs a {
    color: inherit;
}

.knowledge-overline {
    color: var(--kt-accent);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .18em;
    margin: 0 0 14px;
    text-transform: uppercase;
}

.catalog-hero {
    background:
        linear-gradient(115deg, rgba(255, 254, 251, .98), rgba(227, 237, 232, .88)),
        repeating-linear-gradient(90deg, transparent 0 63px, rgba(23, 54, 63, .035) 64px);
    border: 1px solid var(--kt-line);
    border-radius: 4px 4px 24px 4px;
    box-shadow: var(--kt-shadow);
    margin-top: 34px;
    padding: 38px clamp(24px, 5vw, 72px) 52px;
}

.catalog-hero h1,
.article-hero h1,
.knowledge-status-page h1 {
    font-family: Georgia, "Times New Roman", serif;
    font-weight: 500;
    letter-spacing: -.035em;
}

.catalog-hero h1 {
    font-size: clamp(46px, 7vw, 84px);
    line-height: .95;
    margin: 0 0 22px;
}

.catalog-hero > p:last-child {
    color: var(--kt-ink-soft);
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(19px, 2.2vw, 26px);
    line-height: 1.45;
    margin: 0;
    max-width: 760px;
}

.catalog-tools {
    border-bottom: 1px solid var(--kt-line);
    padding: 32px 0;
}

.knowledge-search {
    max-width: 760px;
}

.knowledge-search > label {
    display: block;
    font-size: 13px;
    font-weight: 800;
    margin-bottom: 9px;
}

.knowledge-search > div {
    display: flex;
    gap: 10px;
}

.knowledge-search input {
    background: var(--kt-white);
    border: 1px solid #bdcac5;
    border-radius: 8px;
    color: var(--kt-ink);
    flex: 1 1 auto;
    font: inherit;
    min-width: 0;
    padding: 13px 15px;
}

.knowledge-search input:focus {
    border-color: var(--kt-sage);
    outline: 3px solid rgba(111, 146, 135, .25);
}

.knowledge-button {
    align-items: center;
    background: var(--kt-ink);
    border: 1px solid var(--kt-ink);
    border-radius: 8px;
    color: #fff;
    cursor: pointer;
    display: inline-flex;
    font: inherit;
    font-size: 14px;
    font-weight: 800;
    justify-content: center;
    padding: 12px 19px;
    text-decoration: none;
}

.knowledge-button.secondary {
    background: transparent;
    color: var(--kt-ink);
}

.article-sources {
    border-top: 1px solid var(--kt-line);
    margin: 28px auto 70px;
    max-width: 1040px;
    padding-top: 34px;
}

.article-sources > h2 {
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 500;
    margin: 0 0 24px;
}

.article-sources > ol {
    display: grid;
    gap: 16px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.article-sources > ol > li {
    background: var(--kt-white);
    border: 1px solid var(--kt-line);
    border-left: 4px solid var(--kt-sage);
    border-radius: 8px;
    padding: 20px 22px;
}

.article-sources h3 {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 21px;
    margin: 4px 0 12px;
}

.article-sources .source-type {
    color: var(--kt-accent);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .13em;
    margin: 0;
    text-transform: uppercase;
}

.article-sources dl {
    color: var(--kt-ink-soft);
    display: grid;
    gap: 7px;
    margin: 0 0 12px;
}

.article-sources dl > div {
    display: grid;
    gap: 8px;
    grid-template-columns: minmax(90px, 140px) 1fr;
}

.article-sources dt {
    font-weight: 800;
}

.article-sources dd {
    margin: 0;
    white-space: pre-line;
}

.article-sources a {
    color: var(--kt-ink);
    font-weight: 800;
    text-underline-offset: 4px;
}

.category-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 23px;
}

.category-filter a {
    align-items: center;
    background: var(--kt-white);
    border: 1px solid var(--kt-line);
    border-radius: 999px;
    color: var(--kt-ink-soft);
    display: flex;
    font-size: 13px;
    font-weight: 700;
    gap: 8px;
    padding: 9px 13px;
    text-decoration: none;
}

.category-filter a[aria-current="page"] {
    background: var(--kt-ink);
    border-color: var(--kt-ink);
    color: #fff;
}

.category-filter span {
    background: rgba(111, 146, 135, .16);
    border-radius: 999px;
    min-width: 24px;
    padding: 2px 6px;
    text-align: center;
}

.audience-filter {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.audience-filter > span {
    color: var(--kt-ink-soft);
    font-size: 13px;
    font-weight: 800;
    margin-right: 3px;
}

.audience-filter a {
    border: 1px solid var(--kt-accent);
    border-radius: 999px;
    color: var(--kt-ink);
    font-size: 13px;
    font-weight: 800;
    padding: 8px 13px;
    text-decoration: none;
}

.audience-filter a[aria-current="page"] {
    background: var(--kt-accent);
    color: #fff;
}

.audience-badge {
    color: var(--kt-accent-dark, #476f63);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .07em;
    margin: 0;
    text-transform: uppercase;
}

.catalog-section {
    padding: 40px 0 58px;
}

.catalog-section-header {
    align-items: flex-end;
    display: flex;
    justify-content: space-between;
    margin-bottom: 24px;
}

.catalog-section-header h2 {
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(30px, 4vw, 46px);
    font-weight: 500;
    margin: 0;
}

.catalog-section-header > p {
    color: var(--kt-ink-soft);
    margin: 0;
}

.catalog-grid {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.catalog-card {
    background: var(--kt-white);
    border: 1px solid var(--kt-line);
    border-radius: 3px 3px 18px 3px;
    box-shadow: 0 8px 25px rgba(23, 54, 63, .05);
    display: flex;
    flex-direction: column;
    min-width: 0;
    padding: 26px;
    position: relative;
}

.catalog-card::before {
    background: var(--kt-accent);
    content: "";
    height: 3px;
    left: 26px;
    position: absolute;
    top: 0;
    width: 54px;
}

.catalog-number {
    color: #9aaba6;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 13px;
    margin-bottom: 18px;
}

.catalog-card h3 {
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(25px, 3vw, 34px);
    font-weight: 500;
    line-height: 1.12;
    margin: 15px 0 9px;
    overflow-wrap: anywhere;
}

.catalog-card h3 a {
    color: var(--kt-ink);
    text-decoration: none;
}

.catalog-card h3 a:hover {
    color: #2f6659;
}

.catalog-card > p {
    color: var(--kt-ink-soft);
    line-height: 1.65;
}

.catalog-card .catalog-subtitle {
    color: var(--kt-ink);
    font-weight: 700;
    margin: 0;
}

.catalog-card footer {
    align-items: center;
    background: transparent;
    border-top: 1px solid var(--kt-line);
    color: var(--kt-ink-soft);
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: space-between;
    margin-top: auto;
    padding: 18px 0 0;
}

.catalog-card footer span {
    color: var(--kt-ink-soft);
    font-size: 12px;
}

.catalog-card footer a {
    color: #2f6659;
    font-size: 13px;
    font-weight: 800;
}

.knowledge-category-list {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.knowledge-category-list li {
    background: var(--kt-sage-light);
    border-radius: 999px;
    color: #315c52;
    font-size: 11px;
    font-weight: 800;
    padding: 6px 9px;
}

.knowledge-alert,
.catalog-empty,
.knowledge-status-page {
    background: var(--kt-white);
    border: 1px solid var(--kt-line);
    border-radius: 12px;
    margin: 28px 0;
    padding: 28px;
}

.knowledge-alert {
    border-left: 5px solid var(--kt-accent);
}

.knowledge-article {
    padding: 34px 0 56px;
}

.article-hero {
    background: var(--kt-white);
    border: 1px solid var(--kt-line);
    border-radius: 4px 4px 28px 4px;
    box-shadow: var(--kt-shadow);
    padding: clamp(25px, 5vw, 66px);
}

.article-hero h1 {
    font-size: clamp(40px, 6vw, 72px);
    line-height: 1.02;
    margin: 23px 0 15px;
    max-width: 980px;
    overflow-wrap: anywhere;
}

.article-subtitle {
    color: var(--kt-ink-soft);
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(21px, 2.7vw, 29px);
    line-height: 1.4;
    margin: 0;
    max-width: 900px;
}

.article-summary {
    border-left: 3px solid var(--kt-accent);
    color: var(--kt-ink-soft);
    font-size: 17px;
    line-height: 1.7;
    margin: 28px 0 0;
    max-width: 830px;
    padding-left: 20px;
    white-space: pre-line;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px 36px;
    margin: 30px 0 0;
}

.article-meta div {
    display: grid;
    gap: 4px;
}

.article-meta dt {
    color: var(--kt-ink-soft);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.article-meta dd {
    font-size: 14px;
    font-weight: 700;
    margin: 0;
}

.article-layout {
    align-items: start;
    display: grid;
    gap: clamp(28px, 5vw, 72px);
    grid-template-columns: minmax(220px, 285px) minmax(0, 780px);
    justify-content: center;
    margin-top: 38px;
}

.article-toc {
    position: sticky;
    top: 24px;
}

.article-toc details {
    background: var(--kt-white);
    border: 1px solid var(--kt-line);
    border-radius: 10px;
    padding: 18px;
}

.article-toc summary {
    cursor: pointer;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 20px;
    font-weight: 700;
}

.article-toc ol {
    list-style: none;
    margin: 16px 0 0;
    padding: 0;
}

.article-toc li + li {
    margin-top: 9px;
}

.article-toc li ol {
    border-left: 1px solid var(--kt-line);
    margin: 9px 0 0 4px;
    padding-left: 14px;
}

.article-toc a {
    color: var(--kt-ink-soft);
    display: block;
    font-size: 13px;
    line-height: 1.4;
    overflow-wrap: anywhere;
    text-decoration: none;
}

.article-toc a:hover {
    color: #2f6659;
    text-decoration: underline;
}

.article-content {
    color: #263f46;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 18px;
    line-height: 1.78;
    min-width: 0;
    overflow-wrap: anywhere;
}

.article-content > :first-child {
    margin-top: 0;
}

.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4 {
    color: var(--kt-ink);
    line-height: 1.2;
    overflow-wrap: anywhere;
    scroll-margin-top: 32px;
}

.article-content h1 {
    font-size: 2.2em;
    margin: 1.6em 0 .65em;
}

.article-content h2 {
    border-top: 1px solid var(--kt-line);
    font-size: 1.75em;
    margin: 2em 0 .65em;
    padding-top: .75em;
}

.article-content h3 {
    font-size: 1.35em;
    margin: 1.7em 0 .55em;
}

.article-content h4 {
    font-size: 1.08em;
    margin: 1.5em 0 .5em;
}

.article-content a {
    color: #236d5b;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

.article-content blockquote {
    background: var(--kt-sage-light);
    border-left: 4px solid var(--kt-sage);
    margin: 1.7em 0;
    padding: 14px 20px;
}

.article-content table {
    border-collapse: collapse;
    display: block;
    margin: 1.8em 0;
    max-width: 100%;
    overflow-x: auto;
    width: max-content;
}

.article-content th,
.article-content td {
    border: 1px solid #bfcac6;
    min-width: 120px;
    padding: 10px 12px;
    text-align: left;
    vertical-align: top;
}

.article-content th {
    background: var(--kt-sage-light);
}

.article-content pre {
    background: #ecf0ee;
    border-radius: 8px;
    font-size: .84em;
    overflow-x: auto;
    padding: 17px;
}

.article-content code {
    overflow-wrap: anywhere;
}

.status-code {
    color: var(--kt-accent);
    font-family: Georgia, "Times New Roman", serif;
    font-size: 60px;
    margin: 0;
}

.knowledge-status-page {
    margin: 50px auto;
    max-width: 760px;
    text-align: center;
}

.knowledge-status-page h1 {
    font-size: clamp(32px, 5vw, 48px);
}

.knowledge-medical-note {
    background: #e7ecea;
    border-radius: 8px;
    color: var(--kt-ink-soft);
    font-size: 13px;
    line-height: 1.6;
    margin-top: 24px;
    padding: 17px 20px;
    text-align: center;
}

.knowledge-footer {
    align-items: center;
    border-top: 1px solid var(--kt-line);
    background: var(--kt-ink);
    border-radius: 8px;
    color: rgba(255, 255, 255, .76);
    display: grid;
    font-size: 13px;
    gap: 24px;
    grid-template-columns: 1fr auto auto;
    margin-top: 24px;
    padding: 28px 24px;
}

.knowledge-footer strong {
    color: #fff;
}

.knowledge-footer p {
    color: rgba(255, 255, 255, .68);
}

.knowledge-footer p {
    margin: 4px 0 0;
}

.knowledge-footer nav {
    display: flex;
    gap: 16px;
}

.knowledge-footer a {
    color: inherit;
}

.visually-hidden {
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    height: 1px;
    overflow: hidden;
    position: absolute;
    white-space: nowrap;
    width: 1px;
}

@media (max-width: 920px) {
    .knowledge-app {
        padding-inline: 24px;
    }

    .article-layout {
        grid-template-columns: 1fr;
    }

    .article-toc {
        position: static;
    }

    .article-toc details {
        padding: 15px 18px;
    }

    .article-content {
        margin: 0 auto;
        max-width: 760px;
        width: 100%;
    }

    .knowledge-footer {
        grid-template-columns: 1fr auto;
    }

    .knowledge-footer > span {
        grid-column: 1 / -1;
    }
}

@media (max-width: 680px) {
    .knowledge-app {
        padding-inline: 14px;
    }

    .knowledge-site-header {
        align-items: stretch;
        gap: 18px;
        flex-direction: column;
    }

    .knowledge-site-nav {
        display: grid;
        gap: 7px;
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .knowledge-site-nav a {
        background: var(--kt-white);
        border: 1px solid var(--kt-line);
        border-radius: 7px;
        font-size: 12px;
        padding: 10px 6px;
        text-align: center;
    }

    .catalog-hero,
    .article-hero {
        padding: 24px 20px 32px;
    }

    .catalog-hero h1 {
        font-size: 48px;
    }

    .knowledge-search > div {
        align-items: stretch;
        flex-direction: column;
    }

    .catalog-grid {
        grid-template-columns: 1fr;
    }

    .catalog-section-header,
    .catalog-card footer {
        align-items: flex-start;
        flex-direction: column;
    }

    .catalog-card {
        padding: 22px 19px;
    }

    .article-hero h1 {
        font-size: 40px;
    }

    .article-content {
        font-size: 17px;
    }

    .article-content h2 {
        font-size: 1.55em;
    }

    .knowledge-footer {
        align-items: flex-start;
        grid-template-columns: 1fr;
    }

    .knowledge-footer > span {
        grid-column: auto;
    }

    .knowledge-footer nav {
        flex-wrap: wrap;
    }
}