:root {
    color-scheme: dark;
    --ink: #111318;
    --ink-2: #171a20;
    --ink-3: #20242c;
    --paper: #f3f1eb;
    --white: #fff;
    --text: #1d2026;
    --muted: #666b73;
    --muted-light: #a8adb6;
    --line: #d9d6ce;
    --line-dark: #30343c;
    --red: #ed3b35;
    --red-dark: #bf2724;
    --cyan: #62d5e8;
    --lime: #bcff63;
    --radius: 4px;
    --shadow: 0 20px 60px rgba(5, 7, 10, .16);
    --shell: min(1240px, calc(100% - 40px));
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 110px;
}

body {
    margin: 0;
    background: var(--paper);
    color: var(--text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 16px;
    line-height: 1.65;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

img,
svg {
    display: block;
    max-width: 100%;
}

button,
input {
    color: inherit;
    font: inherit;
}

button,
summary,
input[type="range"] {
    cursor: pointer;
}

a {
    color: inherit;
    text-decoration-thickness: .08em;
    text-underline-offset: .2em;
}

h1,
h2,
h3,
p,
figure,
ul,
ol,
dl {
    margin-top: 0;
}

h1,
h2,
h3 {
    font-family: "Arial Narrow", "Roboto Condensed", Impact, ui-sans-serif, system-ui, sans-serif;
    font-weight: 850;
    letter-spacing: -.035em;
    line-height: 1.02;
}

h1 {
    font-size: clamp(2.8rem, 7vw, 6.7rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 4rem);
}

h3 {
    font-size: clamp(1.22rem, 2vw, 1.6rem);
}

::selection {
    background: var(--red);
    color: var(--ink);
}

:focus-visible {
    outline: 3px solid var(--cyan);
    outline-offset: 4px;
}

[hidden] {
    display: none !important;
}

.shell {
    width: var(--shell);
    margin-inline: auto;
}

.content-narrow {
    width: min(780px, 100%);
}

.icon {
    width: 24px;
    height: 24px;
    flex: 0 0 auto;
}

.icon--small {
    width: 18px;
    height: 18px;
}

.skip-link {
    position: fixed;
    z-index: 9999;
    top: 12px;
    left: 12px;
    padding: 12px 18px;
    transform: translateY(-160%);
    background: var(--white);
    color: var(--ink);
    font-weight: 800;
}

.skip-link:focus {
    transform: translateY(0);
}

.signal-bar {
    background: #090a0d;
    border-bottom: 1px solid #292c33;
    color: #c3c7ce;
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.signal-bar__inner {
    display: flex;
    justify-content: flex-end;
    gap: 30px;
    min-height: 30px;
    align-items: center;
}

.signal-bar__inner span:first-child {
    margin-right: auto;
}

.live-dot {
    display: inline-block;
    width: 7px;
    height: 7px;
    margin-right: 7px;
    border-radius: 50%;
    background: var(--lime);
    box-shadow: 0 0 0 4px rgba(188, 255, 99, .1);
}

.site-header {
    position: sticky;
    z-index: 100;
    top: 0;
    background: rgba(17, 19, 24, .96);
    border-bottom: 1px solid var(--line-dark);
    color: var(--white);
    backdrop-filter: blur(14px);
}

.header-inner {
    display: flex;
    min-height: 76px;
    align-items: center;
    gap: 28px;
}

.brand {
    display: grid;
    grid-template-columns: 42px auto;
    grid-template-rows: 24px 14px;
    column-gap: 10px;
    color: var(--white);
    text-decoration: none;
}

.brand img {
    grid-row: 1 / 3;
}

.brand__word {
    align-self: end;
    font-size: 1.28rem;
    font-weight: 950;
    letter-spacing: -.04em;
    line-height: 1;
}

.brand__word span {
    color: var(--red);
}

.brand__claim {
    color: #8f949e;
    font-size: .61rem;
    font-weight: 800;
    letter-spacing: .17em;
    text-transform: uppercase;
}

.desktop-nav {
    display: flex;
    height: 76px;
    align-items: stretch;
    margin-left: auto;
}

.desktop-nav a {
    position: relative;
    display: flex;
    align-items: center;
    padding-inline: 13px;
    color: #d7d9de;
    font-size: .82rem;
    font-weight: 800;
    letter-spacing: .02em;
    text-decoration: none;
}

.desktop-nav a::after {
    position: absolute;
    right: 13px;
    bottom: 0;
    left: 13px;
    height: 3px;
    transform: scaleX(0);
    transform-origin: left;
    background: var(--red);
    content: "";
    transition: transform .18s ease;
}

.desktop-nav a:hover,
.desktop-nav a[aria-current="page"] {
    color: var(--white);
}

.desktop-nav a:hover::after,
.desktop-nav a[aria-current="page"]::after {
    transform: scaleX(1);
}

.header-tool {
    display: inline-flex;
    min-height: 42px;
    align-items: center;
    gap: 8px;
    padding: 0 14px;
    background: var(--red);
    color: var(--ink);
    font-size: .78rem;
    font-weight: 850;
    text-decoration: none;
}

.header-tool:hover {
    background: var(--red-dark);
    color: var(--white);
}

.mobile-nav {
    display: none;
    margin-left: auto;
}

.mobile-nav summary {
    display: flex;
    min-width: 48px;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    gap: 7px;
    list-style: none;
    font-size: .78rem;
    font-weight: 850;
    text-transform: uppercase;
}

.mobile-nav summary::-webkit-details-marker {
    display: none;
}

.mobile-nav nav {
    position: absolute;
    top: 76px;
    right: 0;
    left: 0;
    display: grid;
    padding: 12px 20px 20px;
    background: var(--ink);
    border-top: 1px solid var(--line-dark);
    box-shadow: 0 20px 50px rgba(0, 0, 0, .35);
}

.mobile-nav nav a {
    min-height: 48px;
    padding: 12px 0;
    border-bottom: 1px solid var(--line-dark);
    font-weight: 800;
    text-decoration: none;
}

.breadcrumbs {
    padding-block: 14px;
    color: #626770;
    font-size: .76rem;
    font-weight: 700;
}

.breadcrumbs ol {
    display: flex;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
}

.breadcrumbs li:not(:last-child)::after {
    margin-left: 8px;
    color: #aaa;
    content: "/";
}

.breadcrumbs a:hover {
    color: var(--red-dark);
}

.section {
    padding-block: clamp(72px, 9vw, 128px);
}

.section--light {
    background: var(--paper);
}

.section--white {
    background: var(--white);
}

.section--ink {
    background: var(--ink);
    color: var(--white);
}

.section--signal {
    background: var(--red);
    color: var(--ink);
}

.section-head {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(260px, .65fr);
    align-items: end;
    gap: 50px;
    margin-bottom: 46px;
}

.section-head h2,
.section-head p {
    margin-bottom: 0;
}

.section-head > p {
    color: var(--muted);
}

.section-head--inverse > p {
    color: var(--muted-light);
}

.eyebrow {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
    color: #d4d7de;
    font-size: .72rem;
    font-weight: 900;
    letter-spacing: .14em;
    text-transform: uppercase;
}

.eyebrow > span {
    width: 24px;
    height: 3px;
    background: var(--red);
}

.eyebrow--dark {
    color: #5c6169;
}

.eyebrow--dark > span {
    background: var(--red);
}

.button {
    display: inline-flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 19px;
    border: 1px solid transparent;
    border-radius: 2px;
    font-size: .84rem;
    font-weight: 900;
    letter-spacing: .01em;
    text-decoration: none;
    transition: transform .16s ease, background .16s ease, border-color .16s ease;
}

.button:hover {
    transform: translateY(-2px);
}

.button--primary {
    background: var(--red);
    color: var(--ink);
}

.button--primary:hover {
    background: var(--red-dark);
    color: var(--white);
}

.button--ghost {
    border-color: #555a64;
    color: var(--white);
}

.button--ghost:hover {
    border-color: var(--white);
    background: rgba(255, 255, 255, .06);
}

.button--dark {
    background: var(--ink);
    color: var(--white);
}

.button--dark:hover {
    background: #2a2e36;
}

.button--light {
    background: var(--white);
    color: var(--ink);
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--red-dark);
    font-size: .82rem;
    font-weight: 900;
    text-decoration: none;
}

.text-link svg {
    transition: transform .16s ease;
}

.text-link:hover svg {
    transform: translateX(4px);
}

.text-link--light {
    color: var(--white);
}

.hero-section {
    overflow: hidden;
    background: var(--ink);
    color: var(--white);
}

.hero-grid {
    display: grid;
    min-height: min(720px, calc(100vh - 106px));
    grid-template-columns: minmax(0, .92fr) minmax(440px, 1.08fr);
    align-items: center;
    gap: clamp(30px, 5vw, 84px);
    padding-block: 64px;
}

.hero-copy {
    position: relative;
    z-index: 2;
}

.hero-copy h1 {
    max-width: 780px;
    margin-bottom: 26px;
    text-transform: uppercase;
}

.hero-copy h1 em {
    color: var(--red);
    font-style: normal;
}

.hero-lead {
    max-width: 650px;
    margin-bottom: 32px;
    color: #b9bdc5;
    font-size: clamp(1.02rem, 1.6vw, 1.2rem);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.hero-proof {
    display: flex;
    margin: 34px 0 0;
    padding: 0;
    flex-wrap: wrap;
    gap: 12px 22px;
    color: #a9aeb7;
    font-size: .75rem;
    font-weight: 750;
    list-style: none;
}

.hero-proof li {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.hero-proof svg {
    color: var(--lime);
}

.hero-media {
    position: relative;
    margin: 0;
}

.hero-media::before {
    position: absolute;
    z-index: 1;
    inset: -12px;
    border: 1px solid #353942;
    content: "";
    pointer-events: none;
}

.hero-media::after {
    position: absolute;
    z-index: 2;
    inset: 0;
    background: linear-gradient(90deg, rgba(17, 19, 24, .45), transparent 35%), linear-gradient(0deg, rgba(17, 19, 24, .5), transparent 40%);
    content: "";
    pointer-events: none;
}

.hero-media img {
    width: 100%;
    aspect-ratio: 1.18 / 1;
    object-fit: cover;
    object-position: 62% center;
    filter: saturate(.82) contrast(1.06);
}

.hero-media figcaption {
    position: absolute;
    z-index: 3;
    right: 12px;
    bottom: 10px;
    color: #b7bbc3;
    font-size: .64rem;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.hero-media__badge {
    position: absolute;
    z-index: 4;
    bottom: 34px;
    left: -30px;
    display: grid;
    width: 128px;
    height: 128px;
    align-content: center;
    padding: 16px;
    background: var(--red);
    box-shadow: var(--shadow);
    color: var(--ink);
}

.hero-media__badge strong {
    font-size: 2.2rem;
    line-height: 1;
}

.hero-media__badge span {
    margin-top: 7px;
    font-size: .57rem;
    font-weight: 900;
    letter-spacing: .13em;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-top: 1px solid var(--line-dark);
}

.hero-stats > div {
    display: flex;
    min-height: 92px;
    align-items: center;
    gap: 12px;
    padding: 18px 24px;
    border-right: 1px solid var(--line-dark);
}

.hero-stats > div:last-child {
    border-right: 0;
}

.hero-stats strong {
    color: var(--red);
    font-size: 1.6rem;
    line-height: 1;
}

.hero-stats span {
    color: #9ea3ad;
    font-size: .72rem;
    font-weight: 750;
    line-height: 1.3;
    text-transform: uppercase;
}

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

.topic-card {
    position: relative;
    min-height: 390px;
    padding: 34px;
    overflow: hidden;
    background: var(--white);
    border: 1px solid var(--line);
    color: var(--text);
    text-decoration: none;
    transition: transform .18s ease, box-shadow .18s ease;
}

.topic-card::after {
    position: absolute;
    right: -45px;
    bottom: -55px;
    width: 180px;
    height: 180px;
    border: 30px solid rgba(17, 19, 24, .035);
    border-radius: 50%;
    content: "";
}

.topic-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.topic-card__number {
    display: block;
    margin-bottom: 44px;
    color: #a5a7ab;
    font-size: .68rem;
    font-weight: 900;
    letter-spacing: .1em;
}

.topic-card__icon {
    width: 64px;
    height: 64px;
    margin-bottom: 28px;
    color: var(--red);
}

.topic-card h3 {
    margin-bottom: 15px;
    font-size: 2rem;
}

.topic-card p {
    color: var(--muted);
    font-size: .93rem;
}

.topic-card .text-link {
    position: absolute;
    z-index: 2;
    bottom: 28px;
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

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

.article-card {
    display: grid;
    overflow: hidden;
    background: var(--white);
    border: 1px solid var(--line);
    color: var(--text);
}

.article-card__visual {
    position: relative;
    display: flex;
    min-height: 190px;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: #292d35;
    color: var(--white);
    text-decoration: none;
}

.article-card__visual::before,
.article-card__visual::after {
    position: absolute;
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: 50%;
    content: "";
}

.article-card__visual::before {
    width: 220px;
    height: 220px;
}

.article-card__visual::after {
    width: 140px;
    height: 140px;
}

.article-card__visual--maeuse {
    background: radial-gradient(circle at 50% 45%, #414650, #17191e 68%);
}

.article-card__visual--tastaturen {
    background: radial-gradient(circle at 50% 45%, #51312f, #19191d 68%);
}

.article-card__visual--headsets {
    background: radial-gradient(circle at 50% 45%, #254149, #17191e 68%);
}

.article-card__visual--setup {
    background: radial-gradient(circle at 50% 45%, #3a354e, #17191e 68%);
}

.article-card__visual > span {
    position: absolute;
    top: 15px;
    left: 16px;
    padding: 6px 8px;
    background: var(--red);
    color: var(--ink);
    font-size: .61rem;
    font-weight: 900;
    letter-spacing: .11em;
    text-transform: uppercase;
}

.article-card__icon {
    position: relative;
    z-index: 1;
    width: 76px;
    height: 76px;
}

.article-card__body {
    display: flex;
    min-height: 285px;
    flex-direction: column;
    padding: 25px;
}

.article-card__meta {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
    color: #676b73;
    font-size: .66rem;
    font-weight: 850;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.article-card h3 {
    margin-bottom: 13px;
    font-size: clamp(1.35rem, 2.3vw, 1.9rem);
}

.article-card h3 a {
    text-decoration: none;
}

.article-card h3 a:hover {
    color: var(--red-dark);
}

.article-card p {
    margin-bottom: 20px;
    color: var(--muted);
    font-size: .9rem;
}

.article-card .text-link {
    margin-top: auto;
}

.split-feature {
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    align-items: center;
    gap: clamp(40px, 8vw, 110px);
}

.split-feature__copy h2 {
    margin-bottom: 24px;
}

.split-feature__copy p:not(.eyebrow) {
    max-width: 650px;
    margin-bottom: 30px;
    color: #371816;
}

.profile-preview {
    position: relative;
    padding: 36px;
    background: var(--ink);
    box-shadow: 16px 16px 0 rgba(17, 19, 24, .16);
    color: var(--white);
}

.profile-preview__top {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding-bottom: 22px;
    border-bottom: 1px solid var(--line-dark);
    font-size: .71rem;
    font-weight: 900;
    letter-spacing: .12em;
}

.profile-preview__top span {
    color: var(--red);
}

.profile-preview__bars {
    display: grid;
    gap: 18px;
    padding-block: 28px;
}

.profile-preview__bars span {
    position: relative;
    display: block;
    height: 28px;
    background: #272a31;
}

.profile-preview__bars span::before {
    position: absolute;
    inset: 0 auto 0 0;
    width: var(--bar);
    background: var(--red);
    content: "";
}

.profile-preview__bars .bar--82 { --bar: 82%; }
.profile-preview__bars .bar--68 { --bar: 68%; }
.profile-preview__bars .bar--44 { --bar: 44%; }

.profile-preview__bars i {
    position: relative;
    z-index: 1;
    padding-left: 10px;
    font-size: .65rem;
    font-style: normal;
    font-weight: 850;
    line-height: 28px;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.profile-preview > p {
    margin: 0;
    color: #8f949d;
    font-size: .72rem;
}

.principles-layout {
    display: grid;
    grid-template-columns: .85fr 1.15fr;
    gap: clamp(50px, 9vw, 130px);
}

.principles-intro h2 {
    margin-bottom: 24px;
}

.principles-intro > p:not(.eyebrow) {
    color: var(--muted);
}

.principles-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.principles-list li {
    display: grid;
    grid-template-columns: 62px 1fr;
    gap: 18px;
    padding: 26px 0;
    border-top: 1px solid var(--line);
}

.principles-list > li:last-child {
    border-bottom: 1px solid var(--line);
}

.principles-list > li > span {
    color: var(--red-dark);
    font-size: .72rem;
    font-weight: 900;
}

.principles-list h3 {
    margin-bottom: 7px;
}

.principles-list p {
    margin: 0;
    color: var(--muted);
    font-size: .91rem;
}

.compact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
}

.compact-card {
    display: grid;
    min-height: 150px;
    grid-template-columns: 48px 1fr 38px;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: var(--white);
}

.compact-card__index {
    color: var(--red-dark);
    font-size: .7rem;
    font-weight: 900;
}

.compact-card p {
    margin-bottom: 8px;
    color: #787c83;
    font-size: .65rem;
    font-weight: 850;
    letter-spacing: .09em;
    text-transform: uppercase;
}

.compact-card h3 {
    margin: 0;
    font-size: 1.35rem;
}

.compact-card h3 a {
    text-decoration: none;
}

.compact-card > a {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    background: var(--ink);
    color: var(--white);
}

.history-strip {
    padding-block: 38px;
    background: #292d34;
    color: var(--white);
}

.history-strip__inner {
    display: grid;
    grid-template-columns: 190px 1fr auto;
    align-items: center;
    gap: 36px;
}

.history-strip__inner > div {
    display: grid;
}

.history-strip span {
    color: var(--red);
    font-size: .71rem;
    font-weight: 900;
    letter-spacing: .1em;
}

.history-strip strong {
    font-size: 1.08rem;
}

.history-strip p {
    margin: 0;
    color: #c0c4cb;
    font-size: .9rem;
}

.hub-hero,
.page-hero,
.tool-hero,
.author-hero,
.legal-hero,
.status-hero {
    position: relative;
    overflow: hidden;
    background: var(--ink);
    color: var(--white);
}

.hub-hero::after,
.page-hero::after,
.tool-hero::after,
.author-hero::after {
    position: absolute;
    top: -160px;
    right: -80px;
    width: 430px;
    height: 430px;
    border: 70px solid rgba(255, 255, 255, .025);
    border-radius: 50%;
    content: "";
}

.hub-hero__grid,
.tool-hero__grid {
    display: grid;
    min-height: 430px;
    grid-template-columns: minmax(0, 1fr) 260px;
    align-items: center;
    gap: 50px;
    padding-block: 65px;
}

.hub-hero h1,
.page-hero h1,
.tool-hero h1,
.author-hero h1 {
    max-width: 920px;
    margin-bottom: 24px;
    font-size: clamp(3rem, 6vw, 5.6rem);
    text-transform: uppercase;
}

.hub-hero__grid > div > p:last-child,
.page-hero__inner > p:last-child,
.tool-hero__grid > div > p:last-child,
.author-hero__grid > div > p {
    max-width: 760px;
    margin: 0;
    color: #b8bdc6;
    font-size: 1.08rem;
}

.hub-hero__icon,
.tool-hero__symbol {
    display: grid;
    width: 220px;
    height: 220px;
    place-items: center;
    border: 1px solid #3a3e47;
    transform: rotate(-4deg);
    background: #1b1e24;
    color: var(--red);
}

.hub-hero__icon svg,
.tool-hero__symbol svg {
    width: 100px;
    height: 100px;
}

.page-hero__inner {
    min-height: 430px;
    padding-block: 78px;
}

.hub-layout {
    display: grid;
    grid-template-columns: 210px 1fr;
    align-items: start;
    gap: 44px;
}

.hub-filter {
    position: sticky;
    top: 105px;
    display: grid;
    border-top: 3px solid var(--ink);
}

.hub-filter p {
    margin: 0;
    padding: 16px 0 10px;
    color: #626770;
    font-size: .65rem;
    font-weight: 900;
    letter-spacing: .12em;
}

.hub-filter a {
    padding: 12px 8px;
    border-bottom: 1px solid var(--line);
    font-size: .84rem;
    font-weight: 800;
    text-decoration: none;
}

.hub-filter a:hover,
.hub-filter a[aria-current="page"] {
    padding-left: 13px;
    background: var(--ink);
    color: var(--white);
}

.results-head {
    display: grid;
    grid-template-columns: 160px 1fr;
    align-items: center;
    gap: 30px;
    margin-bottom: 30px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--line);
}

.results-head > div {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.results-head span {
    color: var(--red-dark);
    font-size: 2.2rem;
    font-weight: 950;
}

.results-head p {
    margin: 0;
    color: var(--muted);
    font-size: .86rem;
}

.inline-cta {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 50px;
}

.inline-cta h2 {
    margin-bottom: 18px;
}

.inline-cta p:last-child {
    max-width: 800px;
    margin-bottom: 0;
    color: var(--muted-light);
}

.inline-cta--light p:last-child {
    color: var(--muted);
}

.reading-progress {
    position: fixed;
    z-index: 110;
    top: 76px;
    right: 0;
    left: 0;
    width: 100%;
    height: 3px;
    appearance: none;
    border: 0;
    background: transparent;
    pointer-events: none;
}

.reading-progress::-webkit-progress-bar {
    background: transparent;
}

.reading-progress::-webkit-progress-value {
    background: var(--red);
}

.reading-progress::-moz-progress-bar {
    background: var(--red);
}

.article-hero {
    background: var(--ink);
    color: var(--white);
}

.article-hero__inner {
    max-width: 1080px;
    padding-block: clamp(62px, 8vw, 104px);
}

.article-hero h1 {
    max-width: 1000px;
    margin-bottom: 26px;
    font-size: clamp(2.9rem, 6vw, 5.8rem);
}

.article-deck {
    max-width: 820px;
    margin-bottom: 34px;
    color: #bcc0c8;
    font-size: clamp(1.04rem, 1.8vw, 1.25rem);
}

.article-byline {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 22px;
    border-top: 1px solid var(--line-dark);
    font-size: .82rem;
}

.article-byline > div {
    display: grid;
}

.article-byline a {
    color: var(--white);
    font-weight: 850;
}

.article-byline small {
    color: #8f949d;
}

.author-avatar {
    display: grid;
    width: 42px;
    height: 42px;
    flex: 0 0 auto;
    place-items: center;
    border-radius: 50%;
    background: var(--red);
    color: var(--ink);
    font-size: .72rem;
    font-weight: 900;
}

.author-avatar--large {
    width: 70px;
    height: 70px;
    font-size: 1rem;
}

.byline-reading {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-left: auto;
    color: #a7abb4;
}

.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 780px) 280px;
    align-items: start;
    justify-content: space-between;
    gap: 70px;
    padding-block: 68px 110px;
}

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

.key-points {
    margin-bottom: 28px;
    padding: 28px;
    background: var(--white);
    border-top: 4px solid var(--red);
    box-shadow: 0 8px 30px rgba(17, 19, 24, .06);
}

.key-points__title {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}

.key-points__title svg {
    color: var(--red-dark);
}

.key-points h2 {
    margin: 0;
    font-size: 1.5rem;
}

.key-points ul {
    display: grid;
    margin: 0;
    padding-left: 20px;
    gap: 8px;
}

.article-disclosure {
    margin-bottom: 42px;
    padding: 14px 18px;
    border-left: 3px solid #9c9fa5;
    color: #575c64;
    font-size: .82rem;
}

.prose {
    font-size: 1.02rem;
}

.prose h2 {
    margin: 58px 0 20px;
    font-size: clamp(1.8rem, 3vw, 2.55rem);
    scroll-margin-top: 110px;
}

.prose h3 {
    margin: 34px 0 14px;
    font-size: 1.38rem;
}

.prose p,
.prose li {
    color: #3f434a;
}

.prose p {
    margin-bottom: 22px;
}

.prose ul,
.prose ol {
    display: grid;
    margin-bottom: 28px;
    padding-left: 24px;
    gap: 9px;
}

.prose a {
    color: var(--red-dark);
    font-weight: 750;
}

.prose code {
    padding: 2px 5px;
    background: #e7e4dc;
    color: #8e2420;
    font-size: .88em;
}

.prose--inverse h2,
.prose--inverse li,
.prose--inverse p {
    color: var(--white);
}

.content-note {
    display: block;
    margin: 34px 0;
    padding: 22px 24px;
    background: #e7e4dc;
    border-left: 4px solid var(--red);
    color: #33373d;
    font-size: .93rem;
}

.table-wrap {
    margin: 30px 0 40px;
    overflow-x: auto;
    border: 1px solid var(--line);
}

table {
    width: 100%;
    min-width: 620px;
    border-collapse: collapse;
    background: var(--white);
    font-size: .9rem;
}

caption {
    padding: 12px 16px;
    background: var(--ink);
    color: var(--white);
    font-size: .72rem;
    font-weight: 850;
    text-align: left;
    text-transform: uppercase;
}

th,
td {
    padding: 13px 16px;
    border-bottom: 1px solid var(--line);
    text-align: left;
}

th {
    color: #575b62;
    font-size: .7rem;
    letter-spacing: .07em;
    text-transform: uppercase;
}

.article-sources {
    margin-top: 56px;
    padding: 28px;
    background: var(--white);
    border: 1px solid var(--line);
}

.article-sources .eyebrow {
    margin-bottom: 8px;
}

.article-sources h2 {
    margin-bottom: 10px;
    font-size: 1.65rem;
}

.article-sources > p:not(.eyebrow) {
    color: var(--muted);
    font-size: .88rem;
}

.article-sources ul {
    display: grid;
    margin: 22px 0 0;
    padding: 0;
    gap: 12px;
    list-style: none;
}

.article-sources li {
    display: grid;
    grid-template-columns: minmax(110px, auto) 1fr;
    align-items: baseline;
    gap: 14px;
}

.article-sources li span {
    color: #8e2420;
    font-size: .65rem;
    font-weight: 900;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.article-sources a {
    font-size: .88rem;
    font-weight: 800;
}

.author-box {
    display: grid;
    grid-template-columns: 70px 1fr;
    gap: 22px;
    margin-top: 66px;
    padding: 30px;
    background: var(--white);
    border: 1px solid var(--line);
}

.author-box .eyebrow {
    margin-bottom: 8px;
}

.author-box h2 {
    margin-bottom: 8px;
    font-size: 1.65rem;
}

.author-box p:not(.eyebrow) {
    margin-bottom: 14px;
    color: var(--muted);
    font-size: .9rem;
}

.article-sidebar {
    position: sticky;
    top: 110px;
}

.toc {
    display: grid;
    margin-bottom: 24px;
    border-top: 3px solid var(--ink);
}

.toc p {
    margin: 0;
    padding: 14px 0 9px;
    color: #777c84;
    font-size: .64rem;
    font-weight: 900;
    letter-spacing: .12em;
}

.toc a {
    padding: 10px 7px;
    border-bottom: 1px solid var(--line);
    color: #454950;
    font-size: .79rem;
    font-weight: 750;
    text-decoration: none;
}

.toc a:hover {
    padding-left: 12px;
    color: var(--red-dark);
}

.sidebar-card {
    padding: 22px;
    background: var(--ink);
    color: var(--white);
}

.sidebar-card > svg {
    width: 34px;
    height: 34px;
    margin-bottom: 16px;
    color: var(--lime);
}

.sidebar-card h2 {
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.sidebar-card p {
    color: #aeb2ba;
    font-size: .8rem;
}

.sidebar-card a {
    color: var(--white);
    font-size: .78rem;
    font-weight: 850;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.tool-card {
    min-height: 430px;
    padding: 38px;
    background: var(--white);
    border: 1px solid var(--line);
}

.tool-card--primary {
    border-top: 5px solid var(--red);
}

.tool-card__icon {
    display: grid;
    width: 76px;
    height: 76px;
    margin-bottom: 52px;
    place-items: center;
    background: var(--ink);
    color: var(--white);
}

.tool-card__icon svg {
    width: 36px;
    height: 36px;
}

.tool-card h2 {
    margin-bottom: 18px;
    font-size: 2.5rem;
}

.tool-card > p:not(.eyebrow) {
    max-width: 560px;
    margin-bottom: 30px;
    color: var(--muted);
}

.trust-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
}

.trust-row > div {
    padding: 30px;
    background: var(--white);
}

.trust-row svg {
    width: 34px;
    height: 34px;
    margin-bottom: 22px;
    color: var(--red-dark);
}

.trust-row h2 {
    margin-bottom: 12px;
    font-size: 1.35rem;
}

.trust-row p {
    margin: 0;
    color: var(--muted);
    font-size: .86rem;
}

.calculator-layout,
.finder-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(340px, .92fr);
    align-items: start;
    gap: 40px;
}

.calculator,
.finder-form {
    padding: 34px;
    background: var(--white);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.calculator__head {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin: -34px -34px 34px;
    padding: 14px 18px;
    background: var(--ink);
    color: #aeb3bc;
    font-size: .62rem;
    font-weight: 900;
    letter-spacing: .1em;
}

.field-grid {
    display: grid;
    grid-template-columns: 1fr 42px 1fr;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.field {
    display: grid;
    gap: 8px;
}

.field > span {
    font-size: .75rem;
    font-weight: 900;
    letter-spacing: .06em;
    text-transform: uppercase;
}

.field input {
    width: 100%;
    min-height: 62px;
    padding: 10px 14px;
    background: #f7f6f2;
    border: 1px solid #c9c6be;
    border-radius: 0;
    font-size: 1.5rem;
    font-weight: 850;
}

.field input:focus {
    border-color: var(--red-dark);
}

.field small {
    color: #777b83;
    font-size: .69rem;
}

.operator {
    font-size: 1.8rem;
    font-weight: 900;
    text-align: center;
}

.calculator > .button {
    width: 100%;
}

.calculator-result {
    margin-top: 24px;
    padding: 28px;
    background: var(--ink);
    color: var(--white);
    text-align: center;
}

.calculator-result span {
    color: #9ca1aa;
    font-size: .62rem;
    font-weight: 900;
    letter-spacing: .14em;
}

.calculator-result strong {
    display: block;
    margin-block: 4px;
    color: var(--red);
    font-size: clamp(3rem, 7vw, 5rem);
    line-height: 1;
}

.calculator-result p {
    margin: 0;
    color: #b9bdc5;
    font-size: .8rem;
}

.form-error {
    margin: 14px 0 0;
    color: #9f1e1a;
    font-size: .8rem;
    font-weight: 750;
}

.tool-explainer {
    padding: 32px;
}

.tool-explainer h2 {
    margin-bottom: 20px;
    font-size: 2.4rem;
}

.tool-explainer > p:not(.eyebrow) {
    color: var(--muted);
}

.formula {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-block: 24px;
    padding: 20px;
    background: #e7e4dc;
}

.formula span,
.formula strong {
    padding: 8px 10px;
    background: var(--white);
    font-size: .82rem;
    font-weight: 900;
}

.formula strong {
    background: var(--red);
    color: var(--ink);
}

.finder-layout {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
}

.finder-step {
    display: grid;
    grid-template-columns: 54px 1fr;
    gap: 18px;
    margin: 0;
    padding: 0 0 30px;
    border: 0;
}

.finder-step + .finder-step {
    padding-top: 28px;
    border-top: 1px solid var(--line);
}

.finder-step__number {
    color: var(--red-dark);
    font-size: .68rem;
    font-weight: 900;
    letter-spacing: .1em;
}

.finder-step label > strong,
.finder-step legend strong {
    display: block;
    margin-bottom: 5px;
    font-size: 1rem;
}

.finder-step label > span,
.finder-step legend small {
    display: block;
    color: var(--muted);
    font-size: .76rem;
    font-weight: 450;
}

.finder-step legend {
    display: grid;
    width: 100%;
    grid-template-columns: 54px 1fr;
    grid-column: 1 / -1;
    gap: 18px;
    margin-bottom: 16px;
    padding: 0;
}

.range-row {
    display: grid;
    grid-template-columns: 1fr 86px;
    align-items: center;
    gap: 16px;
    margin-top: 18px;
}

input[type="range"] {
    width: 100%;
    accent-color: var(--red);
}

.range-row output {
    padding: 10px;
    background: var(--ink);
    color: var(--white);
    font-size: .82rem;
    font-weight: 900;
    text-align: center;
}

.choice-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-column: 2;
    gap: 10px;
}

.choice-grid--three {
    grid-template-columns: repeat(3, 1fr);
}

.choice-grid label {
    position: relative;
}

.choice-grid input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
}

.choice-grid label > span {
    display: block;
    min-height: 88px;
    padding: 15px;
    background: #f5f3ed;
    border: 1px solid #d2cfc7;
}

.choice-grid input:checked + span {
    background: var(--ink);
    border-color: var(--ink);
    color: var(--white);
}

.choice-grid input:checked + span small {
    color: #aeb3bb;
}

.choice-grid input:focus-visible + span {
    outline: 3px solid var(--cyan);
    outline-offset: 3px;
}

.finder-form > .button {
    width: 100%;
}

.finder-result {
    position: sticky;
    top: 110px;
    padding: 30px;
    background: var(--ink);
    color: var(--white);
}

.finder-result__type {
    display: grid;
    margin-bottom: 24px;
    padding-bottom: 22px;
    border-bottom: 1px solid var(--line-dark);
}

.finder-result__type span {
    color: var(--red);
    font-size: .7rem;
    font-weight: 900;
    letter-spacing: .12em;
}

.finder-result__type strong {
    font-size: 2.6rem;
    line-height: 1.05;
}

.finder-result dl {
    margin: 0;
}

.finder-result dl > div {
    padding: 13px 0;
    border-bottom: 1px solid var(--line-dark);
}

.finder-result dt {
    color: #858b95;
    font-size: .62rem;
    font-weight: 900;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.finder-result dd {
    margin: 3px 0 0;
    font-size: .86rem;
}

.finder-result__note {
    margin-block: 20px;
    color: #aeb3bb;
    font-size: .74rem;
}

.finder-result .button {
    width: 100%;
}

.noscript-note {
    margin-top: 16px;
    padding: 12px;
    background: #fff1c9;
    color: #5b4716;
    font-size: .8rem;
}

.methodology-intro {
    display: grid;
    grid-template-columns: 1fr 340px;
    align-items: end;
    gap: 50px;
    margin-bottom: 56px;
}

.methodology-intro h2 {
    margin: 0;
}

.status-panel {
    padding: 22px;
    background: var(--ink);
    color: var(--white);
}

.status-panel span {
    color: var(--lime);
    font-size: .65rem;
    font-weight: 900;
    letter-spacing: .1em;
}

.status-panel p {
    margin: 10px 0 4px;
    color: #aeb2ba;
    font-size: .75rem;
}

.status-panel strong {
    font-size: .83rem;
}

.method-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
}

.method-steps article {
    min-height: 240px;
    padding: 28px;
    background: var(--white);
}

.method-steps span,
.values-grid span {
    display: block;
    margin-bottom: 40px;
    color: var(--red-dark);
    font-size: .68rem;
    font-weight: 900;
}

.method-steps h3 {
    margin-bottom: 12px;
}

.method-steps p {
    margin: 0;
    color: var(--muted);
    font-size: .84rem;
}

.measurement-grid {
    display: grid;
    grid-template-columns: 1.15fr repeat(3, 1fr);
    gap: 1px;
    background: var(--line-dark);
    border: 1px solid var(--line-dark);
}

.measurement-grid > * {
    padding: 28px;
    background: var(--ink-2);
}

.measurement-grid__intro h2 {
    font-size: 2.4rem;
}

.measurement-grid__intro > p:last-child {
    color: #aeb2ba;
    font-size: .85rem;
}

.measurement-grid article > svg {
    width: 42px;
    height: 42px;
    margin-bottom: 32px;
    color: var(--red);
}

.measurement-grid h3 {
    margin-bottom: 18px;
}

.measurement-grid ul {
    display: grid;
    margin: 0;
    padding-left: 18px;
    gap: 8px;
    color: #aeb2ba;
    font-size: .8rem;
}

.editorial-promise {
    max-width: 900px;
}

.editorial-promise h2 {
    margin-bottom: 30px;
}

.editorial-promise ul {
    display: grid;
    margin-bottom: 34px;
    padding: 0;
    gap: 1px;
    background: var(--line);
    list-style: none;
}

.editorial-promise li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 18px;
    background: var(--white);
}

.editorial-promise li svg {
    color: var(--red-dark);
}

.story-layout {
    display: grid;
    grid-template-columns: .85fr 1.15fr;
    gap: 90px;
}

.story-lead h2 {
    margin-bottom: 24px;
}

.story-lead > p:last-child {
    color: var(--muted);
}

.timeline {
    margin: 0;
    padding: 0;
    list-style: none;
}

.timeline li {
    position: relative;
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 24px;
    padding: 0 0 36px;
}

.timeline li::before {
    position: absolute;
    top: 7px;
    bottom: 0;
    left: 78px;
    width: 1px;
    background: var(--line);
    content: "";
}

.timeline li::after {
    position: absolute;
    top: 5px;
    left: 74px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--red);
    content: "";
}

.timeline li:last-child::before {
    display: none;
}

.timeline time {
    color: var(--red-dark);
    font-size: .7rem;
    font-weight: 900;
}

.timeline h3 {
    margin-bottom: 7px;
}

.timeline p {
    margin: 0;
    color: var(--muted);
    font-size: .87rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--line-dark);
    border: 1px solid var(--line-dark);
}

.values-grid article {
    min-height: 300px;
    padding: 34px;
    background: var(--ink-2);
}

.values-grid h2 {
    font-size: 2rem;
}

.values-grid p {
    color: #acb1b9;
    font-size: .88rem;
}

.policy-layout,
.legal-layout {
    display: grid;
    grid-template-columns: 220px minmax(0, 760px);
    justify-content: space-between;
    gap: 70px;
}

.policy-index {
    position: sticky;
    top: 110px;
    display: grid;
    align-self: start;
    padding: 20px;
    background: var(--ink);
    color: var(--white);
}

.policy-index p,
.policy-index a {
    color: #9da2ab;
    font-size: .68rem;
    font-weight: 850;
}

.policy-index strong {
    margin-bottom: 20px;
}

.policy-content h2:first-child,
.legal-copy h2:first-child {
    margin-top: 0;
}

.author-hero__grid {
    display: grid;
    min-height: 430px;
    grid-template-columns: 190px 1fr;
    align-items: center;
    gap: 42px;
}

.author-monogram {
    display: grid;
    width: 170px;
    height: 170px;
    place-items: center;
    background: var(--red);
    color: var(--ink);
    font-size: 3.2rem;
    font-weight: 950;
}

.author-hero h1 {
    margin-bottom: 18px;
}

.author-hero a {
    display: inline-block;
    margin-top: 18px;
    color: var(--white);
    font-size: .84rem;
    font-weight: 800;
}

.author-layout {
    display: grid;
    grid-template-columns: minmax(0, 760px) 320px;
    justify-content: space-between;
    gap: 70px;
}

.author-layout .prose h2:first-child {
    margin-top: 0;
}

.author-facts {
    padding: 26px;
    background: var(--white);
    border-top: 4px solid var(--red);
}

.author-facts > p {
    color: #7a7e85;
    font-size: .65rem;
    font-weight: 900;
    letter-spacing: .12em;
}

.author-facts dl > div {
    padding: 13px 0;
    border-bottom: 1px solid var(--line);
}

.author-facts dt {
    color: #777b82;
    font-size: .66rem;
    font-weight: 850;
    text-transform: uppercase;
}

.author-facts dd {
    margin: 2px 0 0;
    font-weight: 750;
}

.author-facts .button {
    width: 100%;
    margin-top: 22px;
}

.legal-status {
    position: sticky;
    top: 110px;
    display: grid;
    align-self: start;
    gap: 8px;
    padding: 24px;
    background: var(--ink);
    color: var(--white);
}

.legal-status > span {
    color: var(--lime);
    font-size: .64rem;
    font-weight: 900;
    letter-spacing: .1em;
}

.legal-status > p {
    margin: 0;
    color: #9297a0;
    font-size: .7rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.contact-card {
    min-height: 330px;
    padding: 34px;
    background: var(--white);
    border: 1px solid var(--line);
}

.contact-card--primary {
    border-top: 5px solid var(--red);
}

.contact-card > span {
    color: var(--red-dark);
    font-size: .66rem;
    font-weight: 900;
    letter-spacing: .1em;
}

.contact-card h2 {
    margin: 50px 0 20px;
    font-size: 2rem;
}

.contact-card > a {
    color: var(--red-dark);
    font-size: clamp(1rem, 2vw, 1.4rem);
    font-weight: 850;
}

.contact-card p,
.contact-card li {
    color: var(--muted);
    font-size: .88rem;
}

.legal-hero > .shell {
    min-height: 260px;
    padding-block: 70px;
}

.legal-hero h1 {
    margin-bottom: 12px;
    font-size: clamp(2.8rem, 6vw, 4.8rem);
}

.legal-hero p {
    color: #aaaeb7;
}

.legal-document {
    max-width: 820px;
    padding: 44px;
    background: var(--white);
    border: 1px solid var(--line);
}

.legal-document h2:first-child {
    margin-top: 0;
}

.status-hero {
    display: grid;
    min-height: 70vh;
    place-items: center;
}

.status-hero__inner {
    max-width: 800px;
    padding-block: 90px;
    text-align: center;
}

.status-code {
    display: block;
    margin-bottom: -24px;
    color: #282c33;
    font-size: clamp(7rem, 20vw, 14rem);
    font-weight: 950;
    line-height: .8;
}

.status-hero .eyebrow {
    justify-content: center;
}

.status-hero h1 {
    margin-bottom: 20px;
    font-size: clamp(2.6rem, 6vw, 5rem);
}

.status-hero p:not(.eyebrow) {
    max-width: 600px;
    margin: 0 auto 28px;
    color: #b1b6bf;
}

.site-footer {
    padding-top: 74px;
    background: #090a0d;
    color: var(--white);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.8fr repeat(3, 1fr);
    gap: 50px;
    padding-bottom: 55px;
}

.brand--footer {
    display: inline-grid;
    margin-bottom: 22px;
}

.footer-brand > p {
    max-width: 440px;
    color: #999ea8;
    font-size: .84rem;
}

.footer-status {
    color: #c9cdd4 !important;
    font-size: .7rem !important;
    font-weight: 750;
}

.footer-grid nav {
    display: grid;
    align-content: start;
    gap: 9px;
}

.footer-grid nav h2 {
    margin-bottom: 12px;
    color: #7d828c;
    font-family: inherit;
    font-size: .67rem;
    font-weight: 900;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.footer-grid nav a {
    color: #bfc3ca;
    font-size: .8rem;
    font-weight: 700;
    text-decoration: none;
}

.footer-grid nav a:hover {
    color: var(--white);
}

.footer-bottom {
    display: flex;
    min-height: 62px;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    border-top: 1px solid #25282f;
    color: #a0a5ae;
    font-size: .68rem;
}

.footer-bottom p {
    margin: 0;
}

@media (max-width: 1100px) {
    .desktop-nav a {
        padding-inline: 8px;
        font-size: .75rem;
    }

    .desktop-nav a::after {
        right: 8px;
        left: 8px;
    }

    .header-tool {
        display: none;
    }

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

    .measurement-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .measurement-grid__intro {
        grid-column: 1 / -1;
    }
}

@media (max-width: 900px) {
    :root {
        --shell: min(100% - 32px, 760px);
    }

    .desktop-nav {
        display: none;
    }

    .mobile-nav {
        display: block;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        padding-top: 70px;
    }

    .hero-media {
        margin-left: 30px;
    }

    .hero-media img {
        aspect-ratio: 16 / 9;
    }

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

    .hero-stats > div:nth-child(2) {
        border-right: 0;
    }

    .hero-stats > div:nth-child(-n+2) {
        border-bottom: 1px solid var(--line-dark);
    }

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

    .topic-card {
        min-height: 320px;
    }

    .section-head,
    .split-feature,
    .principles-layout,
    .history-strip__inner,
    .methodology-intro,
    .story-layout {
        grid-template-columns: 1fr;
    }

    .history-strip__inner {
        justify-items: start;
    }

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

    .hub-filter {
        position: static;
        display: flex;
        overflow-x: auto;
        border-top: 0;
        gap: 6px;
        padding-bottom: 4px;
    }

    .hub-filter p {
        display: none;
    }

    .hub-filter a {
        min-width: max-content;
        padding: 10px 12px;
        border: 1px solid var(--line);
    }

    .hub-filter a:hover,
    .hub-filter a[aria-current="page"] {
        padding-left: 12px;
    }

    .article-layout {
        grid-template-columns: minmax(0, 1fr);
    }

    .article-sidebar {
        position: static;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
        grid-row: 1;
    }

    .toc {
        margin: 0;
    }

    .calculator-layout,
    .finder-layout,
    .policy-layout,
    .legal-layout,
    .author-layout {
        grid-template-columns: 1fr;
    }

    .finder-result,
    .policy-index,
    .legal-status {
        position: static;
    }

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

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

    .measurement-grid__intro {
        grid-column: auto;
    }

    .footer-grid {
        grid-template-columns: 1.5fr 1fr 1fr;
    }

    .footer-grid > nav:last-child {
        grid-column: 2;
    }
}

@media (max-width: 680px) {
    :root {
        --shell: min(100% - 24px, 620px);
    }

    body {
        font-size: 15px;
    }

    .signal-bar__inner {
        justify-content: space-between;
        gap: 12px;
    }

    .signal-bar__inner span:first-child {
        margin-right: 0;
    }

    .signal-bar__wide {
        display: none;
    }

    .header-inner {
        min-height: 68px;
    }

    .brand {
        grid-template-columns: 38px auto;
    }

    .brand img {
        width: 38px;
        height: 38px;
    }

    .mobile-nav nav {
        top: 68px;
    }

    .section {
        padding-block: 68px;
    }

    .hero-grid {
        min-height: auto;
        padding-block: 58px 42px;
    }

    .hero-copy h1 {
        font-size: clamp(3rem, 15vw, 4.8rem);
    }

    .hero-actions {
        display: grid;
    }

    .hero-actions .button {
        width: 100%;
    }

    .hero-proof {
        display: grid;
    }

    .hero-media {
        margin: 0 0 0 12px;
    }

    .hero-media__badge {
        bottom: 18px;
        left: -12px;
        width: 96px;
        height: 96px;
    }

    .hero-media__badge strong {
        font-size: 1.6rem;
    }

    .hero-media__badge span {
        font-size: .46rem;
    }

    .hero-stats > div {
        min-height: 80px;
        padding: 14px;
    }

    .hero-stats strong {
        font-size: 1.25rem;
    }

    .hero-stats span {
        font-size: .62rem;
    }

    .section-head {
        gap: 18px;
        margin-bottom: 32px;
    }

    .article-grid,
    .article-grid--featured,
    .compact-grid,
    .tools-grid,
    .trust-row,
    .contact-grid,
    .values-grid {
        grid-template-columns: 1fr;
    }

    .article-card__body {
        min-height: 255px;
    }

    .profile-preview {
        padding: 24px;
    }

    .compact-card {
        grid-template-columns: 34px 1fr 38px;
        padding: 18px;
    }

    .hub-hero__grid,
    .tool-hero__grid {
        min-height: 390px;
        grid-template-columns: 1fr;
        padding-block: 55px;
    }

    .hub-hero__icon,
    .tool-hero__symbol {
        display: none;
    }

    .hub-hero h1,
    .page-hero h1,
    .tool-hero h1,
    .author-hero h1 {
        font-size: clamp(2.7rem, 13vw, 4rem);
    }

    .page-hero__inner {
        min-height: 390px;
        padding-block: 56px;
    }

    .results-head {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .inline-cta {
        grid-template-columns: 1fr;
    }

    .reading-progress {
        top: 68px;
    }

    .article-hero h1 {
        font-size: clamp(2.6rem, 12vw, 4.2rem);
    }

    .article-byline {
        align-items: flex-start;
        flex-wrap: wrap;
    }

    .byline-reading {
        width: 100%;
        margin: 8px 0 0 54px;
    }

    .article-layout {
        gap: 38px;
        padding-block: 42px 72px;
    }

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

    .key-points,
    .author-box,
    .calculator,
    .finder-form,
    .legal-document {
        padding: 22px;
    }

    .author-box {
        grid-template-columns: 1fr;
    }

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

    .operator {
        height: 22px;
        line-height: 18px;
    }

    .calculator__head {
        margin: -22px -22px 26px;
    }

    .finder-step,
    .finder-step legend {
        grid-template-columns: 38px 1fr;
        gap: 10px;
    }

    .choice-grid {
        grid-template-columns: 1fr;
        grid-column: 1 / -1;
    }

    .choice-grid--three {
        grid-template-columns: 1fr;
    }

    .choice-grid label > span {
        min-height: 70px;
    }

    .method-steps {
        grid-template-columns: 1fr;
    }

    .method-steps article {
        min-height: 210px;
    }

    .timeline li {
        grid-template-columns: 68px 1fr;
    }

    .timeline li::before {
        left: 57px;
    }

    .timeline li::after {
        left: 53px;
    }

    .author-hero__grid {
        min-height: 470px;
        grid-template-columns: 1fr;
        align-content: center;
        gap: 24px;
    }

    .author-monogram {
        width: 105px;
        height: 105px;
        font-size: 2.1rem;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 34px 24px;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }

    .footer-grid > nav:last-child {
        grid-column: auto;
    }

    .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
        justify-content: center;
        gap: 4px;
        padding-block: 16px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
    }
}

@media print {
    .signal-bar,
    .site-header,
    .site-footer,
    .breadcrumbs,
    .article-sidebar,
    .reading-progress,
    .button {
        display: none !important;
    }

    body,
    .article-hero,
    .section--ink {
        background: #fff;
        color: #000;
    }

    .article-layout {
        display: block;
        width: 100%;
        padding: 0;
    }
}