:root {
    --knowledge-ink: #10271d;
    --knowledge-green: #0f3b29;
    --knowledge-green-2: #18583d;
    --knowledge-mint: #b9d8c1;
    --knowledge-paper: #f3f0e7;
    --knowledge-white: #fffdf8;
    --knowledge-line: rgba(16, 39, 29, 0.2);
    --knowledge-muted: #5c695f;
}

.knowledge-page {
    color: var(--knowledge-ink);
    background: var(--knowledge-paper);
    overflow: hidden;
}

.knowledge-page h1,
.knowledge-page h2,
.knowledge-page h3,
.knowledge-page p {
    margin-top: 0;
}

.knowledge-page h1,
.knowledge-page h2 {
    font-family: Georgia, "Times New Roman", serif;
    font-weight: 400;
    letter-spacing: -0.045em;
}

.knowledge-page h1 {
    max-width: 1040px;
    margin-bottom: 0;
    font-size: clamp(3.2rem, 7vw, 7.2rem);
    line-height: 0.94;
}

.knowledge-page h2 {
    margin-bottom: 1.35rem;
    font-size: clamp(2.25rem, 4.5vw, 4.7rem);
    line-height: 1.02;
}

.knowledge-eyebrow,
.knowledge-section-label,
.knowledge-aside-label {
    margin-bottom: 1.25rem;
    color: var(--knowledge-green-2);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    line-height: 1.35;
    text-transform: uppercase;
}

.knowledge-hero {
    padding: clamp(3.5rem, 7vw, 7.5rem) 0 clamp(4.5rem, 8vw, 8rem);
    border-bottom: 1px solid var(--knowledge-line);
}

.knowledge-hero-lead {
    margin-bottom: 0;
    color: #34483d;
    font-size: 1.08rem;
    line-height: 1.7;
}

.knowledge-index {
    color: var(--knowledge-white);
    background: var(--knowledge-green);
}

.knowledge-index-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.knowledge-index-grid a {
    min-height: 180px;
    padding: 1.75rem;
    border-right: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--knowledge-white);
    text-decoration: none;
    transition: background-color 160ms ease;
}

.knowledge-index-grid a:last-child {
    border-right: 0;
}

.knowledge-index-grid a:hover,
.knowledge-index-grid a:focus-visible {
    background: rgba(255, 255, 255, 0.08);
}

.knowledge-index-grid span,
.knowledge-index-grid strong {
    display: block;
}

.knowledge-index-grid span {
    margin-bottom: 3.5rem;
    color: var(--knowledge-mint);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
}

.knowledge-index-grid strong {
    max-width: 210px;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.3rem;
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.22;
}

.knowledge-featured,
.knowledge-areas,
.knowledge-method,
.knowledge-faq {
    padding: clamp(4.5rem, 8vw, 8rem) 0;
}

.knowledge-featured {
    scroll-margin-top: 100px;
    background: var(--knowledge-white);
}

.knowledge-featured-heading {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    padding-bottom: 2.5rem;
    align-items: end;
    border-bottom: 1px solid var(--knowledge-ink);
}

.knowledge-featured-heading h2 {
    max-width: 1000px;
    margin-bottom: 0;
}

.knowledge-featured-index {
    color: var(--knowledge-green-2);
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(3.5rem, 7vw, 7rem);
    letter-spacing: -0.06em;
    line-height: 0.8;
}

.knowledge-featured-aside {
    position: sticky;
    top: 110px;
    padding: 2rem;
    color: var(--knowledge-white);
    background: var(--knowledge-green);
}

.knowledge-featured-aside > p:not(.knowledge-aside-label):not(.knowledge-legal-note) {
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.82);
    font-size: 1rem;
    line-height: 1.62;
}

.knowledge-featured-aside .knowledge-aside-label {
    margin-bottom: 0.55rem;
    color: var(--knowledge-mint);
    font-size: 0.68rem;
}

.knowledge-featured-aside a {
    display: flex;
    padding: 0.85rem 0;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
    color: var(--knowledge-white);
    font-size: 0.85rem;
    font-weight: 700;
    line-height: 1.45;
    text-decoration: none;
}

.knowledge-featured-aside a:hover,
.knowledge-featured-aside a:focus-visible {
    color: var(--knowledge-mint);
}

.knowledge-legal-note {
    margin: 2rem 0 0;
    color: rgba(255, 255, 255, 0.52);
    font-size: 0.72rem;
    line-height: 1.5;
}

.knowledge-article-lead {
    margin-bottom: 2.7rem;
    color: #263d31;
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(1.3rem, 2.1vw, 1.9rem);
    letter-spacing: -0.02em;
    line-height: 1.5;
}

.knowledge-article-lead p {
    margin-bottom: 0;
}

.knowledge-article-points {
    border-top: 1px solid var(--knowledge-line);
}

.knowledge-article-points section {
    display: grid;
    grid-template-columns: 52px 1fr;
    gap: 1.25rem;
    padding: 1.8rem 0;
    border-bottom: 1px solid var(--knowledge-line);
}

.knowledge-article-points section > span {
    padding-top: 0.25rem;
    color: var(--knowledge-green-2);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
}

.knowledge-article-points h3 {
    margin-bottom: 0.6rem;
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(1.35rem, 2vw, 1.85rem);
    font-weight: 400;
    letter-spacing: -0.025em;
}

.knowledge-article-points p {
    max-width: 700px;
    margin-bottom: 0;
    color: #425449;
    line-height: 1.68;
}

.knowledge-article-conclusion {
    padding-top: 2.2rem;
}

.knowledge-article-conclusion p {
    max-width: 720px;
    color: #34483d;
    font-size: 1.04rem;
    line-height: 1.68;
}

.knowledge-text-link {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.35rem 0 0.3rem;
    border-bottom: 1px solid currentColor;
    color: var(--knowledge-ink);
    font-size: 0.9rem;
    font-weight: 700;
    text-decoration: none;
}

.knowledge-text-link:hover,
.knowledge-text-link:focus-visible {
    color: var(--knowledge-green-2);
}

.knowledge-areas {
    scroll-margin-top: 100px;
    background: var(--knowledge-paper);
}

.knowledge-section-intro {
    max-width: 760px;
    margin-bottom: 0;
    color: var(--knowledge-muted);
    font-size: 1.08rem;
    line-height: 1.72;
}

.knowledge-area-list {
    border-top: 1px solid var(--knowledge-ink);
}

.knowledge-area-row {
    display: grid;
    grid-template-columns: 64px minmax(230px, 0.85fr) minmax(300px, 1.45fr);
    gap: 2rem;
    padding: 2.6rem 0;
    border-bottom: 1px solid var(--knowledge-line);
}

.knowledge-area-number {
    padding-top: 0.3rem;
    color: var(--knowledge-green-2);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
}

.knowledge-area-heading > p {
    margin-bottom: 0.65rem;
    color: var(--knowledge-green-2);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.knowledge-area-heading h3 {
    margin-bottom: 0;
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(1.5rem, 2.5vw, 2.35rem);
    font-weight: 400;
    letter-spacing: -0.03em;
    line-height: 1.12;
}

.knowledge-area-copy > p {
    margin-bottom: 1.25rem;
    color: #425449;
    line-height: 1.7;
}

.knowledge-area-copy ul {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    padding: 0;
    margin: 0 0 1.5rem;
    list-style: none;
    border-top: 1px solid var(--knowledge-line);
}

.knowledge-area-copy li {
    position: relative;
    padding: 0.8rem 0.75rem 0.8rem 1.25rem;
    border-bottom: 1px solid var(--knowledge-line);
    color: #4a5a51;
    font-size: 0.82rem;
    line-height: 1.5;
}

.knowledge-area-copy li::before {
    position: absolute;
    top: 1.15rem;
    left: 0;
    width: 5px;
    height: 5px;
    content: "";
    background: var(--knowledge-green-2);
}

.knowledge-method {
    color: var(--knowledge-white);
    background: var(--knowledge-green);
}

.knowledge-method h2 {
    font-size: clamp(2.15rem, 4vw, 4.1rem);
}

.knowledge-section-label-light {
    color: var(--knowledge-mint);
}

.knowledge-method-list {
    border-top: 1px solid rgba(255, 255, 255, 0.45);
}

.knowledge-method-list article {
    display: grid;
    grid-template-columns: 52px 1fr;
    gap: 1.2rem;
    padding: 1.7rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.knowledge-method-list article > span {
    padding-top: 0.3rem;
    color: var(--knowledge-mint);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
}

.knowledge-method-list h3 {
    margin-bottom: 0.4rem;
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(1.3rem, 2vw, 1.8rem);
    font-weight: 400;
}

.knowledge-method-list p {
    max-width: 650px;
    margin-bottom: 0;
    color: rgba(255, 255, 255, 0.74);
    line-height: 1.62;
}

.knowledge-faq {
    scroll-margin-top: 100px;
    background: var(--knowledge-white);
}

.knowledge-faq h2 {
    font-size: clamp(2.1rem, 3.8vw, 4rem);
}

.knowledge-faq-list {
    border-top: 1px solid var(--knowledge-ink);
}

.knowledge-faq-list details {
    border-bottom: 1px solid var(--knowledge-line);
}

.knowledge-faq-list summary {
    position: relative;
    padding: 1.6rem 3rem 1.6rem 0;
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(1.2rem, 1.9vw, 1.55rem);
    letter-spacing: -0.02em;
    line-height: 1.3;
    cursor: pointer;
    list-style: none;
}

.knowledge-faq-list summary::-webkit-details-marker {
    display: none;
}

.knowledge-faq-list summary::after {
    position: absolute;
    top: 50%;
    right: 0.25rem;
    content: "+";
    color: var(--knowledge-green-2);
    font-family: Arial, sans-serif;
    font-size: 1.4rem;
    transform: translateY(-50%);
}

.knowledge-faq-list details[open] summary::after {
    content: "−";
}

.knowledge-faq-list details p {
    max-width: 720px;
    padding: 0 3rem 1.7rem 0;
    margin-bottom: 0;
    color: #425449;
    line-height: 1.68;
}

.knowledge-cta {
    padding: clamp(4.5rem, 8vw, 7.5rem) 0;
    color: var(--knowledge-white);
    background: #09291c;
}

.knowledge-cta h2 {
    max-width: 940px;
    margin-bottom: 0;
    font-size: clamp(2.4rem, 5vw, 5.1rem);
}

.knowledge-button {
    display: inline-flex;
    min-height: 52px;
    padding: 0.9rem 1.25rem;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    border: 1px solid var(--knowledge-mint);
    color: var(--knowledge-green);
    background: var(--knowledge-mint);
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-decoration: none;
    transition: background-color 160ms ease, transform 160ms ease;
}

.knowledge-button:hover,
.knowledge-button:focus-visible {
    color: var(--knowledge-green);
    background: var(--knowledge-white);
    transform: translateY(-2px);
}

@media (max-width: 991.98px) {
    .knowledge-hero h1 {
        margin-bottom: 1rem;
    }

    .knowledge-index-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .knowledge-index-grid a:nth-child(2) {
        border-right: 0;
    }

    .knowledge-index-grid a:nth-child(-n+2) {
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    }

    .knowledge-featured-aside {
        position: static;
    }

    .knowledge-area-row {
        grid-template-columns: 52px 1fr;
    }

    .knowledge-area-copy {
        grid-column: 2;
    }
}

@media (max-width: 575.98px) {
    .knowledge-page h1 {
        font-size: clamp(3rem, 14.5vw, 4.7rem);
    }

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

    .knowledge-index-grid a,
    .knowledge-index-grid a:nth-child(2) {
        min-height: 145px;
        border-right: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    }

    .knowledge-index-grid a:last-child {
        border-bottom: 0;
    }

    .knowledge-index-grid span {
        margin-bottom: 2.3rem;
    }

    .knowledge-featured-heading {
        grid-template-columns: 1fr;
    }

    .knowledge-featured-index {
        font-size: 3.4rem;
    }

    .knowledge-area-row {
        grid-template-columns: 38px 1fr;
        gap: 0.9rem;
    }

    .knowledge-area-copy ul {
        grid-template-columns: 1fr;
    }

    .knowledge-button {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .knowledge-index-grid a,
    .knowledge-button {
        transition: none;
    }
}