/* Main knowledge base layout. */
.srkb-wrap {
    --srkb-primary-dark: color-mix(in srgb, var(--srkb-primary), #0f172a 35%);
    --srkb-soft: color-mix(in srgb, var(--srkb-primary), #ffffff 92%);
    --srkb-category-icon-size: 28px;
    --srkb-article-icon-size: 22px;
    --srkb-side-panel-heading-size: 16px;
    --srkb-side-panel-article-size: 14px;
    --srkb-hero-gradient: linear-gradient(135deg, color-mix(in srgb, var(--srkb-primary-dark), transparent 12%), color-mix(in srgb, var(--srkb-primary), transparent 22%));
    --srkb-hero-background-image: none;
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 26px;
    max-width: 1540px;
    margin: 0 auto;
    padding: 24px;
    color: #0f172a;
    font-family: inherit;
}

.srkb-wrap *,
.srkb-article-page *,
.srkb-category-page * {
    box-sizing: border-box;
}

.srkb-sidebar {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    padding: 22px;
    min-height: 720px;
    box-shadow: 0 12px 38px rgba(15, 23, 42, 0.06);
}

.srkb-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 22px;
    border-bottom: 1px solid #eef2f7;
}

.srkb-brand-icon {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: var(--srkb-soft);
    color: var(--srkb-primary);
    font-size: 23px;
    flex: 0 0 48px;
    overflow: hidden;
}

.srkb-logo-image {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.srkb-brand strong,
.srkb-brand small {
    display: block;
}

.srkb-brand strong {
    font-size: 18px;
    line-height: 1.2;
}

.srkb-brand small {
    color: var(--srkb-primary);
    font-weight: 700;
    margin-top: 2px;
}

.srkb-side-nav {
    display: grid;
    gap: 6px;
    margin-top: 24px;
}

.srkb-side-nav a,
.srkb-article-sidebar > a:not(.srkb-back-link) {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #152033;
    text-decoration: none;
    border-radius: 12px;
    padding: 11px 12px;
    font-weight: 650;
}

.srkb-side-nav a:hover,
.srkb-article-sidebar > a:not(.srkb-back-link):hover {
    background: var(--srkb-soft);
    color: var(--srkb-primary);
}

.srkb-help-box {
    margin-top: 36px;
    background: #f8fafc;
    border-radius: 18px;
    padding: 18px;
}

.srkb-help-box > strong {
    display: block;
    color: var(--srkb-help-title-colour);
    font-size: var(--srkb-help-title-size);
    line-height: 1.25;
}

.srkb-help-box p,
.srkb-empty-small {
    color: #64748b;
    margin: 8px 0 0;
}

.srkb-help-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 16px;
    min-height: 42px;
    padding: 10px 16px;
    border-radius: 10px;
    background: var(--srkb-primary);
    color: #ffffff !important;
    text-decoration: none;
    font-weight: 800;
}

.srkb-help-button:hover {
    filter: brightness(0.94);
}

.srkb-main {
    min-width: 0;
}

.srkb-hero {
    background-color: var(--srkb-primary);
    background-image: var(--srkb-hero-gradient), var(--srkb-hero-background-image);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    border-radius: 22px;
    overflow: visible;
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    z-index: 20;
    box-shadow: 0 18px 45px color-mix(in srgb, var(--srkb-primary), transparent 72%);
}

.srkb-hero:before,
.srkb-hero:after {
    content: "";
    position: absolute;
    width: 360px;
    height: 360px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
}

.srkb-hero:before {
    left: 18px;
    bottom: 18px;
    width: 190px;
    height: 190px;
}

.srkb-hero:after {
    right: 18px;
    top: 18px;
    width: 190px;
    height: 190px;
}

.srkb-hero-content {
    position: relative;
    z-index: 1;
    width: min(760px, 92%);
    padding: 48px 20px;
}

.srkb-hero h1 {
    color: #ffffff;
    margin: 0 0 10px;
    font-size: clamp(32px, 4vw, 50px);
    font-weight: 850;
    letter-spacing: -0.04em;
}

.srkb-hero p {
    color: rgba(255, 255, 255, 0.9);
    margin: 0 0 26px;
    font-size: 17px;
}

.srkb-search-box {
    background: #ffffff;
    border-radius: 16px;
    padding: 8px;
    display: grid;
    grid-template-columns: 34px 1fr auto;
    gap: 6px;
    align-items: center;
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.14);
    position: relative;
}

.srkb-search-box > i {
    color: #64748b;
    font-size: 18px;
}

.srkb-search-box input {
    border: 0 !important;
    outline: 0 !important;
    box-shadow: none !important;
    min-height: 44px;
    width: 100%;
}

.srkb-search-box button {
    min-height: 44px;
    border: 0;
    background: var(--srkb-primary);
    color: #ffffff;
    border-radius: 11px;
    padding: 0 22px;
    cursor: pointer;
    font-weight: 800;
}

.srkb-search-results {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    overflow: hidden;
    text-align: left;
    box-shadow: 0 20px 42px rgba(15, 23, 42, 0.18);
    display: none;
    z-index: 1000;
    max-height: 360px;
    overflow-y: auto;
}

.srkb-search-results a {
    display: block;
    padding: 14px 16px;
    color: #0f172a;
    text-decoration: none;
    border-bottom: 1px solid #eef2f7;
}

.srkb-search-results a:last-child {
    border-bottom: 0;
}

.srkb-search-results strong {
    display: block;
}

.srkb-search-results small {
    color: #64748b;
}

/* Optional quick searches shown underneath the main search box. */
.srkb-popular-searches {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
    color: rgba(255, 255, 255, 0.94);
}

.srkb-popular-searches > strong {
    font-size: 13px;
}

.srkb-popular-search-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
}

.srkb-popular-search {
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    color: #ffffff;
    padding: 7px 13px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 750;
    line-height: 1.2;
    backdrop-filter: blur(4px);
}

.srkb-popular-search:hover,
.srkb-popular-search:focus-visible {
    background: rgba(255, 255, 255, 0.24);
    border-color: rgba(255, 255, 255, 0.35);
}

/* The hero stays wide while the lower content can use an optional right sidebar. */
.srkb-home-lower {
    min-width: 0;
    position: relative;
    z-index: 1;
}

.srkb-home-lower.has-right-sidebar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 20px;
    align-items: start;
}

.srkb-home-content {
    min-width: 0;
}

.srkb-section {
    margin-top: 34px;
}

.srkb-section-heading {
    margin-bottom: 16px;
}

.srkb-section-heading h2 {
    margin: 0 0 4px;
    font-size: 22px;
    font-weight: 850;
}

.srkb-section-heading p {
    margin: 0;
    color: #64748b;
}

.srkb-category-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.srkb-category-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 18px;
    padding: 22px;
    min-height: 190px;
    color: #0f172a;
    text-decoration: none;
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.04);
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.srkb-category-card:hover {
    transform: translateY(-3px);
    border-color: color-mix(in srgb, var(--srkb-primary), #ffffff 40%);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
}

.srkb-card-icon {
    width: calc(var(--srkb-category-icon-size) + 20px);
    height: calc(var(--srkb-category-icon-size) + 20px);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: var(--srkb-soft);
    color: var(--srkb-primary);
    font-size: var(--srkb-category-icon-size);
    overflow: hidden;
}

.srkb-category-card strong {
    display: block;
    margin-top: 16px;
    font-size: 17px;
}

.srkb-category-card p {
    color: #475569;
    margin: 8px 0 18px;
}

.srkb-category-card small {
    color: var(--srkb-primary);
    font-weight: 800;
}

.srkb-article-list {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.04);
}

.srkb-article-row {
    display: grid;
    grid-template-columns: calc(var(--srkb-article-icon-size) + 18px) minmax(0, 1fr) auto;
    gap: 14px;
    align-items: center;
    padding: 16px 18px;
    border-bottom: 1px solid #eef2f7;
    color: #0f172a;
    text-decoration: none;
}

.srkb-article-row:last-child {
    border-bottom: 0;
}

.srkb-article-row > span {
    width: calc(var(--srkb-article-icon-size) + 16px);
    height: calc(var(--srkb-article-icon-size) + 16px);
    border-radius: 12px;
    background: var(--srkb-soft);
    color: var(--srkb-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: var(--srkb-article-icon-size);
    overflow: hidden;
}

.srkb-article-row p {
    margin: 3px 0 0;
    color: #64748b;
}

.srkb-article-row time {
    color: #64748b;
    font-size: 13px;
    white-space: nowrap;
}

.srkb-trust-strip {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 28px;
    background: #f8fafc;
    border-radius: 18px;
    padding: 18px;
}

.srkb-trust-strip > div {
    display: grid;
    grid-template-columns: 42px 1fr;
    column-gap: 12px;
    align-items: center;
}

.srkb-highlight-icon {
    grid-row: span 2;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--srkb-soft);
    color: var(--srkb-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    font-size: 20px;
}

.srkb-highlight-image {
    display: block;
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.srkb-trust-strip strong {
    color: var(--srkb-highlight-heading-colour);
    font-size: var(--srkb-highlight-heading-size);
    line-height: 1.25;
}

.srkb-highlight-text {
    color: #64748b;
    font-size: 13px;
}

.srkb-credit {
    text-align: center;
    color: #64748b;
    font-size: 13px;
    margin-top: 20px;
}

.srkb-credit a {
    color: var(--srkb-primary);
}

/* Popular and related article panels. */
.srkb-right-sidebar {
    display: grid;
    gap: 14px;
    margin-top: 34px;
    align-content: start;
}

.srkb-side-panel {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 16px;
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.04);
}

.srkb-side-panel h3 {
    margin: 0 0 10px;
    font-size: var(--srkb-side-panel-heading-size);
    font-weight: 850;
}

.srkb-side-article-list {
    display: grid;
    gap: 2px;
}

.srkb-side-article-list a {
    display: grid;
    grid-template-columns: calc(var(--srkb-article-icon-size) + 10px) minmax(0, 1fr);
    gap: 8px;
    align-items: start;
    padding: 8px 4px;
    color: #475569;
    text-decoration: none;
    line-height: 1.35;
    border-radius: 8px;
    font-size: var(--srkb-side-panel-article-size);
}

.srkb-side-article-list a:hover {
    color: var(--srkb-primary);
    background: var(--srkb-soft);
}

.srkb-side-article-icon {
    width: calc(var(--srkb-article-icon-size) + 8px);
    height: calc(var(--srkb-article-icon-size) + 8px);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--srkb-primary);
    font-size: var(--srkb-article-icon-size);
    overflow: hidden;
}

.srkb-side-empty {
    color: #64748b;
    font-size: 14px;
    margin: 0;
}

/* Resource hub layout gives the page a softer community feel. */
.srkb-layout-resource-hub {
    --srkb-hero-gradient: linear-gradient(135deg, rgba(22, 101, 52, 0.92), color-mix(in srgb, var(--srkb-primary), transparent 8%));
}

.srkb-layout-resource-hub .srkb-category-card {
    background: linear-gradient(180deg, #ffffff, color-mix(in srgb, var(--srkb-primary), #ffffff 96%));
}

/* Directory layout makes image-led collections feel more premium. */
.srkb-layout-directory {
    --srkb-hero-gradient: linear-gradient(135deg, rgba(6, 26, 47, 0.94), color-mix(in srgb, var(--srkb-primary), transparent 10%));
}

.srkb-layout-directory .srkb-category-card {
    min-height: 210px;
}

.srkb-empty-state {
    background: #ffffff;
    border: 1px dashed #cbd5e1;
    border-radius: 16px;
    padding: 22px;
    color: #64748b;
}

/* Article and category pages. */
.srkb-article-page,
.srkb-category-page {
    width: 100vw;
    max-width: none !important;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    background: #f8fafc;
    padding: 40px 20px;
    color: #0f172a;
    font-family: inherit;
}

.srkb-article-shell {
    max-width: 1540px;
    width: 100%;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}

.srkb-article-shell.has-right-sidebar {
    grid-template-columns: 260px minmax(0, 1fr) 300px;
}

.srkb-article-sidebar,
.srkb-article-content,
.srkb-category-head {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.04);
}

.srkb-article-sidebar {
    padding: 20px;
}

.srkb-article-brand {
    margin-bottom: 12px;
}

.srkb-back-link,
.srkb-category-back {
    display: inline-flex !important;
    align-items: center;
    gap: 8px;
    color: var(--srkb-back-link-colour) !important;
    font-size: var(--srkb-back-link-size);
    text-decoration: none;
    font-weight: 750;
}

.srkb-back-link {
    width: 100%;
    margin: 4px 0 10px;
    padding: 11px 10px !important;
}

.srkb-category-back {
    margin: 0 0 18px;
}

.srkb-article-sidebar h3 {
    margin: 18px 10px 8px;
    color: var(--srkb-categories-heading-colour);
    font-size: var(--srkb-categories-heading-size);
    line-height: 1.2;
}

.srkb-article-content {
    width: 100%;
    min-width: 0;
    padding: clamp(26px, 4vw, 54px);
}

.srkb-breadcrumbs {
    display: flex;
    gap: 8px;
    color: #64748b;
    margin-bottom: 18px;
    font-size: 14px;
}

.srkb-breadcrumbs a {
    color: var(--srkb-primary);
    text-decoration: none;
}

.srkb-article-content h1,
.srkb-category-head h1 {
    margin: 0 0 10px;
    font-size: clamp(34px, 5vw, 54px);
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.srkb-article-date,
.srkb-category-head p {
    color: #64748b;
}

.srkb-featured-image img {
    width: 100%;
    height: auto;
    border-radius: 18px;
    margin: 20px 0;
}

.srkb-entry-content {
    font-size: 17px;
    line-height: 1.75;
}

.srkb-article-shell > .srkb-right-sidebar {
    margin-top: 0;
}

.srkb-category-shell {
    max-width: 1320px;
    width: 100%;
    margin: 0 auto;
}

.srkb-category-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
    align-items: start;
}

.srkb-category-layout.has-right-sidebar {
    grid-template-columns: minmax(0, 1fr) 300px;
}

.srkb-category-layout > .srkb-right-sidebar {
    margin-top: 0;
}

.srkb-category-main {
    min-width: 0;
}

.srkb-category-head {
    padding: 34px;
    margin-bottom: 22px;
    background: linear-gradient(135deg, #ffffff, var(--srkb-soft));
    display: flex;
    align-items: center;
    gap: 20px;
}

.srkb-category-head-icon {
    width: calc(var(--srkb-category-icon-size) + 24px);
    height: calc(var(--srkb-category-icon-size) + 24px);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    border-radius: 16px;
    background: #ffffff;
    color: var(--srkb-primary);
    font-size: var(--srkb-category-icon-size);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
    overflow: hidden;
}

/* Uploaded icons follow the sizes selected in the settings page. */
.srkb-icon-image {
    display: block;
    width: var(--srkb-article-icon-size);
    height: var(--srkb-article-icon-size);
    object-fit: contain;
}

.srkb-card-icon .srkb-icon-image,
.srkb-nav-icon .srkb-icon-image,
.srkb-category-head-icon .srkb-icon-image {
    width: var(--srkb-category-icon-size);
    height: var(--srkb-category-icon-size);
}

.srkb-nav-icon {
    width: var(--srkb-category-icon-size);
    height: var(--srkb-category-icon-size);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 var(--srkb-category-icon-size);
    color: var(--srkb-primary);
    font-size: var(--srkb-category-icon-size);
    overflow: hidden;
}

.srkb-article-row > span .srkb-icon-image,
.srkb-side-article-icon .srkb-icon-image {
    width: var(--srkb-article-icon-size);
    height: var(--srkb-article-icon-size);
}

@media (max-width: 1320px) {
    .srkb-home-lower.has-right-sidebar {
        grid-template-columns: minmax(0, 1fr) 280px;
    }

    .srkb-category-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .srkb-article-shell.has-right-sidebar {
        grid-template-columns: 240px minmax(0, 1fr) 280px;
    }
}

@media (max-width: 1120px) {
    .srkb-wrap,
    .srkb-article-shell,
    .srkb-article-shell.has-right-sidebar {
        grid-template-columns: 1fr;
    }

    .srkb-sidebar {
        min-height: auto;
    }

    .srkb-article-shell > .srkb-right-sidebar {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .srkb-category-layout.has-right-sidebar {
        grid-template-columns: 1fr;
    }

    .srkb-category-layout > .srkb-right-sidebar {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .srkb-home-lower.has-right-sidebar {
        grid-template-columns: 1fr;
    }

    .srkb-home-lower > .srkb-right-sidebar {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 700px) {
    .srkb-wrap {
        padding: 14px;
    }

    .srkb-category-grid,
    .srkb-trust-strip,
    .srkb-home-lower > .srkb-right-sidebar,
    .srkb-article-shell > .srkb-right-sidebar,
    .srkb-category-layout > .srkb-right-sidebar {
        grid-template-columns: 1fr;
    }

    .srkb-search-box {
        grid-template-columns: 34px 1fr;
    }

    .srkb-search-box button {
        grid-column: 1 / -1;
    }

    .srkb-article-row {
        grid-template-columns: calc(var(--srkb-article-icon-size) + 16px) 1fr;
    }

    .srkb-article-row time {
        grid-column: 2;
    }

    .srkb-category-head {
        align-items: flex-start;
        padding: 24px;
    }
}

/* Simple anonymous helpful voting shown in the article sidebar. */
.srkb-helpful-text {
    margin: 0 0 14px;
    color: #475569;
    font-size: var(--srkb-side-panel-article-size);
    line-height: 1.5;
}

.srkb-helpful-actions {
    display: grid;
    gap: 8px;
}

.srkb-helpful-button {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 10px 12px;
    background: #ffffff;
    color: #334155;
    border: 1px solid #dbe4ef;
    border-radius: 10px;
    font: inherit;
    font-size: var(--srkb-side-panel-article-size);
    text-align: left;
    cursor: pointer;
    transition: border-color 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.srkb-helpful-button:hover:not(:disabled),
.srkb-helpful-button:focus-visible {
    border-color: var(--srkb-primary);
    color: var(--srkb-primary);
    background: var(--srkb-soft);
}

.srkb-helpful-button i {
    color: var(--srkb-primary);
    font-size: 17px;
}

.srkb-helpful-button:disabled {
    cursor: default;
    opacity: 0.68;
}

.srkb-helpful-button.is-selected {
    border-color: var(--srkb-primary);
    color: var(--srkb-primary);
    background: var(--srkb-soft);
    opacity: 1;
}

.srkb-helpful-status {
    min-height: 0;
    margin: 10px 0 0;
    color: #166534;
    font-size: 13px;
    font-weight: 700;
}

.srkb-helpful-status:empty {
    display: none;
}

.srkb-helpful-status.is-error {
    color: #b91c1c;
}


/* Table of contents used on articles and category pages. */
.srkb-table-of-contents {
    margin: 24px 0 30px;
    padding: 20px 22px;
    border: 1px solid #dbe4ef;
    border-radius: 16px;
    background: linear-gradient(180deg, #ffffff, var(--srkb-soft));
}

.srkb-table-of-contents h2 {
    margin: 0 0 12px;
    font-size: 19px;
    line-height: 1.3;
}

.srkb-table-of-contents ol {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 7px;
}

.srkb-table-of-contents li {
    margin: 0;
    padding: 0;
}

.srkb-table-of-contents li.srkb-toc-level-3 {
    padding-left: 18px;
}

.srkb-table-of-contents li.srkb-toc-level-4 {
    padding-left: 36px;
}

.srkb-table-of-contents a {
    color: #334155;
    text-decoration: none;
    line-height: 1.45;
}

.srkb-table-of-contents a:hover,
.srkb-table-of-contents a:focus-visible {
    color: var(--srkb-primary);
    text-decoration: underline;
}

.srkb-entry-content h2[id],
.srkb-entry-content h3[id],
.srkb-entry-content h4[id],
.srkb-category-page .srkb-article-row[id] {
    scroll-margin-top: 32px;
}

.srkb-category-main > .srkb-table-of-contents {
    margin-top: 0;
}