:root {
    /* Layout */
    --top-nav-height: 6rem;
    --article-actions-container-height: 2rem;
    --sticky-header-height: calc(var(--top-nav-height) + var(--article-actions-container-height) + 2px);
    --scroll-margin: 80px;
    --navbar-height: 80px;
    --footer-margin-top: 80px;
    /* Colors - Primary */
    --color-primary: #2C3E50;
    --color-primary-hover: #405264;
    --color-primary-active: #0E2032;
    --color-secondary: #6C757D;
    --color-accent: #D94A2A;
    --color-accent-hover: #ED5E3E;
    --color-accent-active: #C53616;
    --color-link: #036cae;
    --color-footer-link: #3498DB;
    /* Colors - Backgrounds */
    --color-background: #FFF;
    --color-background-alt: #f2f2f2;
    --color-background-light: #fcfcfc;
    --color-background-features: #f9f9f9;
    --color-background-gray: #E5E7EB;
    --color-background-gray-hover: #DBDDE1;
    --color-background-gray-active: #C7C9CD;
    --color-background-hover: #f0f0f0;
    --footer-bkg: #1F2937;
    --color-disclaimer: #BFDBFE;
    --color-disclaimer-text: #1E3A8A;
    /* Colors - Borders */
    --color-border: #E5E7EB;
    --color-border-light: #eee;
    --color-border-medium: #ddd;
    --color-border-dark: #ccc;
    --product-card-pinned-border-color: #9be;
    --color-warning-border: #FFA39E;
    --color-warning-background: #FFF1F0;
    /* Colors - Text */
    --color-text: #2C3E50;
    --color-text-light: #555;
    --color-text-muted: #444;
    --color-text-disabled: rgba(0, 0, 0, 0.25);
    --color-nav-active: #316DB1;
    /* Typography */
    --font-family-base: 'Inter', sans-serif;
    --font-weight-regular: 400;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-style-normal: normal;
    /* Font Sizes */
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-md: 18px;
    --font-size-lg: 20px;
    --font-size-xl: 24px;
    --font-size-2xl: 32px;
    --font-size-3xl: 48px;
    /* Line Heights */
    --line-height-tight: 20px;
    --line-height-base: 24px;
    --line-height-relaxed: 28px;
    --line-height-loose: 29px;
    --line-height-xl: 32px;
    --line-height-2xl: 40px;
    --line-height-3xl: 48px;
    --line-height-normal: normal;
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --spacing-4xl: 80px;
    --spacing-nav-horizontal: 120px;
    --spacing-nav-link: 0.3rem;
    --spacing-footer-logo-offset: 5px;
    --spacing-footer-built-with-bottom: -12px;
    --spacing-footer-built-with-left: -2px;
    /* Border Radius */
    --radius-xs: 4px;
    --radius-sm: 12px;
    --radius-md: 16px;
    /* Gaps */
    --gap-xs: 4px;
    --gap-sm: 12px;
    --gap-md: 16px;
    --gap-lg: 24px;
    --gap-xl: 32px;
    --gap-2xl: 40px;
    --gap-3xl: 48px;
    /* Padding */
    --padding-card: 32px;
    --padding-button: 12px 32px;
    --padding-card-hero: 33px;

}
html, body, button, input, textarea, select {
    font-family: 'Inter', sans-serif;
    font-size: var(--font-size-base);
    font-style: var(--font-style-normal);
    font-weight: var(--font-weight-regular);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.form-select {
    --bs-form-select-bg-img: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M10.3593 3H9.48037C9.42061 3 9.36436 3.0293 9.3292 3.07734L5.9999 7.66641L2.67061 3.07734C2.63545 3.0293 2.5792 3 2.51944 3H1.64053C1.56436 3 1.51983 3.08672 1.56436 3.14883L5.69639 8.84531C5.84639 9.05156 6.15342 9.05156 6.30225 8.84531L10.4343 3.14883C10.48 3.08672 10.4355 3 10.3593 3Z' fill='black' fill-opacity='0.45'/%3E%3C/svg%3E");
}

.list-group-flush {
    width: 100%;
}

.list-group-item a {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    text-decoration: none;
}

.active-clear {
    color: #D94A2A !important;
}

h6 {
    color: #2C3E50;
}

a {
    text-decoration: none;
    color: var(--color-accent);
}

footer {
    margin-top: 128px;
    background-color: var(--footer-bkg);
    padding: var(--spacing-2xl) var(--spacing-nav-horizontal);
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}

footer p {
    color: var(--color-background);
    line-height: var(--line-height-base);
}

footer .text-block {
    display: flex;
    flex: .8;
    flex-direction: column;
    gap: var(--gap-md);
}

footer .logo-block {
    display: flex;
    flex: .2;
    justify-content: flex-end;
}

footer a {
    color: var(--color-footer-link);
    line-height: var(--line-height-base);
    text-decoration: underline;
}

footer h3 {
    color: var(--color-background);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-relaxed);
}

footer .footer-logo {
    text-align: right;
    float: right;
    margin-top: var(--spacing-footer-logo-offset);
}

footer .footer-logo a {
    width: 130px;
    display: block;
    color: var(--color-background);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-tight);
    text-decoration: none;
}

footer .footer-logo a:hover,
footer .footer-logo a:active,
footer .footer-logo a:visited {
    color: var(--color-background);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-tight);
}

footer .footer-logo .built-with {
    margin-bottom: var(--spacing-footer-built-with-bottom);
    margin-left: var(--spacing-footer-built-with-left);
    text-align: left;
    text-transform: uppercase;
}

#content {
    scroll-margin-top: 150px;
}

a.anchor {
    scroll-margin-top: var(--scroll-margin);
    visibility: hidden;
}

.content-wrapper {
    padding: 0 clamp(16px, -9.697px + 7.879vw, 120px);
}

.disclaimer-text {
    color: var(--color-disclaimer-text);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-tight);
    text-align: left;
    width: 100%;
    white-space: normal;
    padding: var(--spacing-sm) 144px;
    display: flex;
    flex-direction: row;
    gap: var(--gap-md);
    justify-content: space-between;
    border-bottom: 1px solid #BFDBFE;
    background: #EBF5FB;
}

.disclaimer-text a {
    color: white;
}

.disclaimer-text > .narrow {
    display: none;
}

.test-kit-column {
    margin-top: 4rem;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    margin-bottom: 4rem;
}

.test-kit {
    margin: 1rem 0;
    border-bottom: 1px solid var(--color-link);
    padding-bottom: 1rem;
}

.test-kit:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.test-kit-section {
    background: linear-gradient(to bottom right, #fff, #f8f8f8);
    border-radius: 0.5rem;
    border: 1px solid var(--color-link);
}

.test-kit-section > section {
    padding: 1rem 1rem .5rem 1rem;
}

.test-kit-section > section.header {
    background-color: var(--color-background-alt);
    border-top-right-radius: 0.5rem;
    border-top-left-radius: 0.5rem;
}

nav[data-toggle="toc"] .nav .nav {
    display: none;
}

.features-new {
    margin-top: var(--footer-margin-top);
    text-align: center;
}

.g-custom {
    --bs-gutter-x: var(--gap-xl);
    --bs-gutter-y: var(--gap-xl);
}

.features-new h2 {
    color: var(--color-text);
    text-align: center;
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    line-height: 36px;
}

.features-new .sub-title {
    color: var(--color-text);
    text-align: center;
    font-size: var(--font-size-md);
    line-height: var(--line-height-relaxed);
}

.features-new .card {
    flex: 0 0 calc((100% - 64px) / 3);
    box-sizing: border-box;
    display: flex;
    padding: var(--spacing-lg);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--gap-sm);
    align-self: stretch;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-background);
}

.features-new .card .card-title {
    color: var(--color-text);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-relaxed);
}

.features-new .card .card-text {
    color: var(--color-text);
    line-height: var(--line-height-base);
    text-align: left;
}

.features-new .card a {
    line-height: var(--line-height-base);
}

.features-new .list-block {
    margin-top: var(--spacing-2xl);
    display: flex;
    flex-wrap: wrap;
    gap: var(--gap-xl);
}

.hero-block {
    margin-top: var(--spacing-3xl);
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    gap: var(--spacing-4xl);
}

.hero-block .card-block {
    display: flex;
    flex-direction: column;
    gap: var(--gap-md);
}

.hero-block .card-block .card {
    display: flex;
    padding: var(--padding-card-hero);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--gap-md);
    align-self: stretch;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-background);
}

.hero-block .card-block .card .card-title {
    color: var(--color-text);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-xl);
}

.hero-block .card-block .card .card-text {
    color: var(--color-text);
    font-size: var(--font-size-md);
    line-height: var(--line-height-relaxed);
}

.hero-block .details-block {
    display: flex;
    flex-direction: column;
}

.hero-block .details-block h2 {
    margin-top: var(--footer-margin-top);
    padding: 0;
    color: var(--color-text);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-3xl);
}

.hero-block .details-block h3 {
    margin-top: var(--spacing-xl);
    color: var(--color-text);
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
}

.hero-block .details-block .text {
    color: var(--color-text);
    font-size: var(--font-size-md);
    line-height: var(--line-height-relaxed);
}

.hero-block .details-block .btn-block {
    margin-top: var(--gap-2xl);
    flex-direction: row;
    display: flex;
    gap: var(--gap-md);
}

.btn {
    display: inline-flex;
    padding: var(--padding-button);
    justify-content: center;
    align-items: center;
    gap: var(--gap-sm);
    border-radius: var(--radius-sm);
    border: 0;
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-base);
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-background);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    color: var(--color-background);
}

.btn-primary:active {
    background: var(--color-primary-active);
    color: var(--color-background);
}

.btn-secondary {
    color: var(--color-primary);
    background: var(--color-background-gray);
}

.btn-secondary:hover {
    background: var(--color-background-gray-hover);
    color: var(--color-primary);
}

.btn-secondary:active {
    background: var(--color-background-gray-active);
    color: var(--color-primary);
}

.btn-attention {
    background: var(--color-accent);
    color: var(--color-background);
}

.btn-attention:hover {
    background: var(--color-accent-hover);
    color: var(--color-background);
}

.btn-attention:active {
    background: var(--color-accent-active);
    color: var(--color-background);
}

.btn-wide {
    width: 100%;
}

.breadcrumb {
    color: var(--color-primary);
    font-size: 24px;
    font-style: normal;
    font-weight: var(--font-weight-bold);
    line-height: normal;
    margin-bottom: 0;
}

.breadcrumb a {
    color: var(--color-secondary);
    font-style: normal;
    font-weight: var(--font-weight-bold);
    line-height: normal;
}

.breadcrumb ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    overflow: hidden;
}

.breadcrumb li {
    float: left;
}

.breadcrumb li:not(:last-child)::after {
    content: "/";
    margin: 0 8px;
}

.form-check-input:checked {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
}

.recent-sessions-card {
    display: flex;
    padding: var(--padding-card);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--padding-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-background);
}

.recent-sessions-card-body {
    color: var(--color-text);
    text-align: center;
    font-size: var(--font-size-base);
    font-style: normal;
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-base);
}

.recent-sessions-card-header {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    width: 100%;
    align-items: center;
    flex: 1 0 0;
}

.recent-sessions-card-header a {
    color: var(--color-text-disabled);
    font-size: var(--font-size-base);
    font-style: normal;
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-base);
}

.recent-sessions-card-header-title {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--gap-sm);
    color: var(--color-text);
    font-size: var(--font-size-xl);
    font-style: normal;
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-xl);
}

.recent-sessions-card-header-title img {
    width: var(--font-size-xl);
    height: var(--font-size-xl);
}

.start-testing-block-title {
    display: flex;
    flex-direction: row;
    gap: var(--gap-sm);
}

.content-container {
    margin-top: clamp(16px, 4vw, 64px);
    display: flex;
    flex-direction: column;
    gap: 64px;
    justify-content: space-between;
    align-self: stretch;
}

.content-container .content {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.content-container .content h1 {
    color: var(--color-primary);
    font-size: 48px;
    font-style: normal;
    font-weight: var(--font-weight-bold);
    line-height: normal;
}

.content-container .content .two-columns {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 48px;
}

.content-container .content .two-columns .content-blocks {
    display: flex;
    flex-direction: column;
    flex: 0.7;
}

.content-container .content .two-columns .content-blocks .btn-secondary {
    width: 166px;
}

.content-container .content .two-columns .content-blocks .card {
    display: flex;
    padding: var(--spacing-lg) var(--padding-card);
    flex-direction: column;
    gap: var(--spacing-lg);
    border-radius: var(--radius-sm);
    border: 0;
    background: var(--color-background);
    margin-bottom: var(--spacing-lg);
    font-size: 18px;
}

.content-container .content .two-columns .content-blocks .card h2 {
    color: var(--color-primary);
    font-size: 32px;
    font-style: normal;
    font-weight: var(--font-weight-bold);
    line-height: 40px;
    margin: 0;
}

.content-container .content .two-columns .content-blocks .card .title-block {
    display: flex;
    flex-direction: row;
    gap: var(--gap-sm);
    align-items: center;
    align-content: center;
}

.content-container .content .two-columns .content-blocks .card .warning-block {
    display: flex;
    padding: var(--spacing-lg);
    flex-direction: column;
    align-items: flex-start;
    align-self: stretch;
    gap: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-warning-border);
    background: var(--color-warning-background);
}

.content-container .content .two-columns .toc-block {
    flex: 0.3;
    display: flex;
    padding: var(--padding-card);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--padding-card);
    align-self: auto;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-background);
}

.content-container .content .two-columns .toc-block h2 {
    color: var(--color-primary);
    font-size: 24px;
    font-style: normal;
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-xl);
    margin: 0;
}

.content-container .content .two-columns .toc-block a {
    color: var(--color-primary);
    font-size: 18px;
    font-style: normal;
    line-height: var(--line-height-loose);
}

.content-container .content .two-columns .toc-block ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.content-container .content .two-columns .toc-block li {
    margin-bottom: var(--gap-sm);
}

.navigation-container {
    padding: var(--spacing-sm) var(--spacing-nav-horizontal);
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
}

.navigation-container .logo {
    width: 232px;
    height: 54px;
}

.navigation-container .navigation-links {
    display: flex;
    flex-direction: row;
    gap: var(--gap-lg);
}

.navigation-container .navigation-links a {
    color: var(--color-secondary);
    font-size: var(--font-size-md);
    font-style: normal;
    font-weight: var(--font-weight-semibold);
    line-height: normal;
}

.navigation-container .navigation-links a:hover {
    color: var(--color-accent);
}

.navigation-container .navigation-links a.active {
    color: var(--color-accent);
}

/* Burger menu base (hidden on desktop) */
.nav-toggle {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}
.hamburger {
    display: none;
}

.tk-content {
    display: flex;
    flex-direction: row;
    gap: 48px;
}

.tk-extra-block {
    display: flex;
    flex: .3;
    flex-direction: column;
    gap: 40px;
}

.tk-extra-card {
    display: flex;
    padding: var(--padding-card);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--padding-card);
    align-self: stretch;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-background);
}

.tk-extra-card-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.tk-extra-card-content-title-icon {
    display: flex;
    flex-direction: row;
    gap: 12px;
    align-items: center;
}

.tk-extra-card-content h3 {
    margin: 0;
    color: var(--color-text);
    font-size: var(--font-size-xl);
    font-style: normal;
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-xl);
}

.tk-main-block {
    display: flex;
    padding: var(--padding-card) var(--spacing-lg);
    flex-direction: column;
    align-items: flex-start;
    gap: 48px;
    flex: .7;
    border-radius: var(--radius-sm);
    background: var(--color-background);
}

.tk-main-block h1 {
    color: var(--color-text);
    font-size: clamp(32px, 1.5rem + 1.5vw, 48px);
    font-style: normal;
    font-weight: var(--font-weight-bold);
    line-height: normal;
    margin: 0;
}

.tk-list-container {
    display: flex;
    flex: .7;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.tk-list-card {
    padding: var(--padding-card);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-background);
}

.hide-item {
    display: none;
}

.tk-header {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}

.tk-header h3 {
    margin: 0;
    color: var(--color-text);
    font-size: var(--font-size-xl);
    font-style: normal;
    font-weight: var(--font-weight-bold);
    line-height: normal;
}

.tk-header img {
    display: flex;
    width: 40px;
    height: 40px;
    justify-content: center;
    align-items: center;
    aspect-ratio: 1/1;
}

.tk-card-content {
    gap: var(--gap-md);
    display: flex;
    flex-direction: column;
}

.tk-text-block {
    color: var(--color-text);
    font-size: var(--font-size-md);
    font-style: normal;
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-loose);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.tk-meta-data {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}

.tk-meta-data .list {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-lg);
}

.tk-meta-data .tag {
    display: flex;
    align-self: center;
    padding: 1px 8px;
    align-items: flex-end;
    align-content: flex-end;
    gap: var(--gap-xs);
    border-radius: var(--radius-xs);
    background: var(--color-background-gray);
    font-size: var(--font-size-xs);
}

.tk-list-item {
    color: var(--color-text);
    font-size: var(--font-size-base);
    font-style: normal;
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-base);
}

.tk-list-item b {
    font-weight: var(--font-weight-semibold);
}

.tk-tag {
    display: flex;
    padding: 1px var(--spacing-sm);
    justify-content: center;
    align-items: center;
    gap: var(--gap-xs);
    border-radius: var(--radius-xs);
    background: var(--color-background-gray);
    color: var(--color-text);
    font-size: var(--font-size-xs);
    font-style: normal;
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-tight);
}

.tk-show-container {
    display: flex;
    flex-direction: row;
    gap: 48px;
}

.tk-show-left-column {
    display: flex;
    padding: var(--padding-card) var(--spacing-lg);
    flex-direction: column;
    align-items: flex-start;
    gap: 48px;
    flex: .7;
    border-radius: var(--radius-sm);
    background: var(--color-background);
    color: var(--color-text);
    font-size: var(--font-size-md);
    font-style: normal;
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-loose);
}

.tk-show-left-column ul {
    list-style-type: square;
}

.tk-show-left-column li::marker {
    color: var(--color-accent);
    border-radius: 2px;
}

.tk-show-main-data {
    display: flex;
    flex-direction: column;
    gap: 23px;
}

.tk-show-header {
    display: flex;
    flex-direction: column;
    gap: var(--gap-md);
}

.tk-show-header-title-logo {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}

.tk-show-header-title-logo h3 {
    color: var(--color-text);
    font-size: clamp(32px, 1.5rem + 1.5vw, 48px);
    font-style: normal;
    font-weight: var(--font-weight-bold);
    line-height: normal;
}

.tk-show-header-title-logo img {
    width: var(--font-size-3xl);
    height: var(--font-size-3xl);
}

.tk-show-header-details {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    color: var(--color-text);
    font-size: var(--font-size-base);
    font-style: normal;
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-base);
}

.tk-show-header-details b {
    font-weight: var(--font-weight-semibold);
}

.tk-show-header-details-list {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-lg);
}

.tk-show-header-details-tags {
    display: flex;
    align-self: center;
    padding: 1px 8px;
    align-items: flex-end;
    align-content: flex-end;
    gap: var(--gap-xs);
    border-radius: var(--radius-xs);
    background: var(--color-background-gray);
    font-size: var(--font-size-xs);
}

.tk-show-data-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.tk-show-data-card {
    display: flex;
    padding: var(--padding-card);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-lg);
    align-self: stretch;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-background);
}

.tk-show-data-card-header {
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    gap: var(--gap-sm);
    align-items: center;
}

.tk-show-data-card-header img {
    width: 32px;
    height: 32px;
}

.tk-show-data-card-header h4 {
    margin: 0;
    color: var(--color-text);
    font-size: var(--font-size-2xl);
    font-style: normal;
    font-weight: var(--font-weight-bold);
    line-height: 40px;
}

.tk-show-right-column {
    display: flex;
    flex-direction: column;
    gap: 40px;
    flex: .3;
}

.tk-show-start-testing-block {
    display: flex;
    padding: var(--padding-card);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--padding-card);
    align-self: stretch;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-background);
}

.tk-show-start-testing-block-title {
    color: var(--color-text);
    font-size: var(--font-size-xl);
    font-style: normal;
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-xl);
}

.tk-show-start-testing-block-legend {
    margin-top: var(--gap-md);
    color: var(--color-text);
    text-align: left;
    font-size: var(--font-size-sm);
    font-style: normal;
    font-weight: var(--font-weight-semibold);
    line-height: 22px;
}

.tk-show-form {
    width: 100%;
}

.tk-list-filters-block {
    width: 100%;
    display: flex;
    flex-direction: row;
    gap: 16px;
}

.tk-list-filters-block .text-search {
    display: flex;
    flex: .6;
}

.tk-list-filters-block .text-search input {
    display: flex;
    padding: 5px 12px 5px 36px; /* extra left padding to make room for icon */
    align-items: center;
    gap: 8px;
    flex: 1 0 0;

    border-radius: 8px;
    border: 1px solid #E5E7EB;
    /* search icon inside input (shows while placeholder is shown) */
    background: #FFF url('/assets/images/search.svg') no-repeat 12px center;
    background-size: 16px 16px;

    color: rgba(0, 0, 0, 0.25);
    text-overflow: ellipsis;

    font-size: 14px;
    font-style: normal;
    font-weight: 400;
    line-height: 22px;
}

/* Hide icon when input has content (placeholder not shown) */
.tk-list-filters-block .text-search input:not(:placeholder-shown) {
    background-image: none;
}

.tk-list-filters-block .text-search input::placeholder {
    color: rgba(0, 0, 0, 0.25);

    font-size: 14px;
    font-style: normal;
    font-weight: 400;
    line-height: 22px;
}

.tk-list-filters-block .tag-search {
    display: flex;
    flex: .3;
}

.tk-list-filters-block .tag-search select {
    display: flex;
    padding: 5px 12px;
    align-items: center;
    gap: 8px;

    border-radius: 8px;
    border: 1px solid #E5E7EB;
    background-color: #FFF;

    color: rgba(0, 0, 0, 0.25);

    font-size: 14px;
    font-style: normal;
    font-weight: 400;
    line-height: 22px;
}

@media (max-width: 575px) {
    .disclaimer-text {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .disclaimer-text {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .breadcrumb {
        display: none;
    }

    .hero-block {
        flex-direction: column;
        margin-top: 32px;
        gap: 32px;
    }

    .hero-block .card-block {
        gap: 32px;
    }

    .hero-block .details-block h2 {
        margin: 0;
        font-size: 32px;
    }

    .hero-block .details-block .text {
        font-size: 16px;
    }

    .hero-block .details-block h3 {
        font-size: 18px;
        margin-top: 24px;
    }

    .hero-block .card-block .card .card-text {
        font-size: 16px;
    }

    .hero-block .details-block .btn-block {
        flex-direction: column;
        margin-top: 32px;
    }

    .content-container .content {
        gap: 48px;
    }


    .content-container .content h1 {
        margin: 0;
    }

    .content-container .content .two-columns .toc-block {
        display: none;
    }

    .content-container .content .two-columns .content-blocks {
        flex: 1;
    }

    .content-container .content .two-columns .content-blocks .card {
        padding: 32px 16px;
    }

    .features-new {
        margin-top: 48px;
    }

    .features-new h2 {
        margin: 0;
    }

    .features-new .sub-title {
        margin-top: 16px;
    }

    .features-new .list-block {
        display: flex;
        flex-direction: column;
        margin-top: 24px;
    }

    .features-new .card {
        flex: 1;
    }

    .content-container .content .two-columns .content-blocks .btn-secondary {
        display: none;
    }

    .tk-content {
        flex-direction: column;
    }

    .tk-main-block {
        gap: 24px;
        padding: 24px 16px;
    }

    .tk-list-card {
        padding: 24px 16px;
    }

    .tk-meta-data .list {
        flex-direction: column;
        gap: 8px;
    }

    .tk-text-block {
        font-size: 16px;
    }

    .tk-show-container {
        flex-direction: column-reverse;
    }

    .tk-show-left-column {
        flex: 1;
        font-size: 16px;
        padding: 40px 16px 24px 16px;
    }

    .tk-show-right-column {
        gap: 48px;
        flex: 1;
    }
    .tk-show-header-title-logo {
        align-items: center;
    }

    .tk-show-header-title-logo h3 {
        margin: 0;
    }

    .tk-show-header-title-logo img {
        width: 32px;
        height: 32px;
    }

    .tk-show-header-details-list {
        flex-direction: column;
        gap: 8px;
    }

    .tk-show-data-card {
        padding: 24px 16px;
    }

    .tk-show-data-card-header h4 {
        font-size: 24px;
    }

    .tk-show-data-card-header img {
        width: 24px;
        height: 24px;
    }

    footer {
        margin-top: 48px;
        background-color: var(--footer-bkg);
        padding: 32px 16px;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }

    footer .logo-block {
        flex: 1;
        justify-content: flex-start;
    }
}

@media (min-width: 576px) and (max-width: 767px) {
    .hero-block {
        gap: 40px;
    }

    .navigation-container {
        padding: 12px 40px;
    }

    .disclaimer-text {
        padding: 12px 40px;
    }

    footer {
        padding: 12px 40px;
    }

    .content-container {
        gap: 16px;
    }

    .content-container .content .two-columns {
        gap: 8px;
    }

    .content-container .content .two-columns .content-blocks .card {
        padding: 6px 4px;
    }

    .content-container .content .two-columns .toc-block {
        padding: 16px;
    }

    .tk-content {
        gap: 30px;
        flex-direction: column;
    }
}

@media (max-width: 991px) {
    .features-new .card {
        flex: 0 0 calc((100% - 48px) / 2);
    }

    .navigation-container {
        padding: 16px;
        position: relative;
    }

    /* Show hamburger, hide links by default */
    .hamburger {
        display: inline-flex;
        width: 28px;
        height: 22px;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        position: relative;
        z-index: 1001; /* above menu */
        margin-left: auto;
    }
    .hamburger span,
    .hamburger span::before,
    .hamburger span::after {
        display: block;
        background: var(--color-text);
        height: 2px;
        width: 100%;
        border-radius: 2px;
        position: absolute;
        transition: transform .2s ease, opacity .2s ease;
        content: '';
    }
    .hamburger span { top: 50%; transform: translateY(-50%); }
    .hamburger span::before { top: -7px; }
    .hamburger span::after { top: 7px; }

    /* Hide nav links until toggled */
    .navigation-container .navigation-links {
        display: none;
        position: absolute;
        top: 100%;
        right: 16px;
        background: var(--color-background);
        border: 1px solid var(--color-border);
        border-radius: 8px;

        padding: 8px 4px;
        box-shadow: 0 4px 16px rgba(0,0,0,0.06);
        flex-direction: column;
        gap: 8px;
        z-index: 1000;
    }
    .navigation-container .navigation-links a {
        color: rgba(0, 0, 0, 0.88);

        font-family: Inter, sans-serif;
        font-size: 14px;
        font-style: normal;
        font-weight: 400;
        line-height: 22px;
        padding: 5px 12px;
    }

    .navigation-container .navigation-links a.active {
        display: flex;
        padding: 5px 12px;
        align-items: center;
        gap: 8px;
        color: rgba(0, 0, 0, 0.88);

        border-radius: 4px;
        background: rgba(0, 0, 0, 0.04);
    }

    .nav-toggle:not(:checked) ~ .navigation-links { display: none; }

    #nav-toggle:checked ~ .navigation-links {
        display: flex !important;
    }

    #nav-toggle:checked + label.hamburger span { background: transparent; }
    #nav-toggle:checked + label.hamburger span::before {
        transform: translateY(7px) rotate(45deg);
    }
    #nav-toggle:checked + label.hamburger span::after {
        transform: translateY(-7px) rotate(-45deg);
    }

    .tk-list-filters-block {
        flex-direction: column;
    }

    .tk-list-filters-block .text-search {
        flex: 1;
    }

    .tk-list-filters-block .tag-search {
        flex: 1;
    }

}

@media (min-width: 768px) and (max-width: 991px) {
    .hero-block .card-block {
        flex: .5;
    }
    .hero-block .details-block {
        flex: .5;
    }

    .hero-block {
        gap: 48px;
    }

    .navigation-container {
        padding: 12px 64px;
    }

    .disclaimer-text {
        padding: 12px 64px;
    }

    footer {
        padding: 12px 64px;
    }

    .content-container {
        gap: 32px;
    }

    .content-container .content .two-columns {
        gap: 16px;
    }

    .content-container .content .two-columns .content-blocks .card {
        padding: 12px 10px;
    }

    .content-container .content .two-columns .toc-block {
        padding: 20px;
    }

    .tk-content {
        gap: 36px;
    }

    .tk-main-block {
        flex: .5;
    }

    .tk-extra-block {
        flex: .5;
    }

    .tk-show-left-column {
        flex: .5;
    }

    .tk-show-right-column {
        flex: .5;
    }
}

@media (min-width: 992px) and (max-width: 1199px) {
    .hero-block .card-block {
        flex: .5;
    }
    .hero-block .details-block {
        flex: .5;
    }

    .hero-block {
        gap: 64px;
    }

    .navigation-container {
        padding: 12px 100px;
    }

    .disclaimer-text {
        padding: 12px 100px;
    }

    .content-container {
        gap: 48px;
    }

    footer {
        padding: 12px 100px;
    }

    .content-container .content .two-columns {
        gap: 32px;
    }

    .content-container .content .two-columns .content-blocks .card {
        padding: 18px 16px;
    }

    .content-container .content .two-columns .toc-block {
        padding: 26px;
    }

    .tk-content {
        gap: 42px;
    }

    .tk-main-block {
        flex: .6;
    }

    .tk-extra-block {
        flex: .4;
    }

    .tk-show-left-column {
        flex: .6;
    }

    .tk-show-right-column {
        flex: .4;
    }
}