:root {
    --ink: #17243A;
    --muted: #667085;
    --accent: #F28C28;
    --paper: #FAFAF7;
    --surface: #E9EDF2;
    --line: rgba(23, 36, 58, .14);
    --serif: Georgia, 'Times New Roman', serif;
    --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif
}

* {
    box-sizing: border-box
}

html {
    scroll-behavior: smooth
}

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--sans);
    line-height: 1.55
}

a {
    color: inherit
}

button {
    font: inherit
}

.wrap {
    width: min(1160px, calc(100% - 48px));
    margin: auto
}

.nav {
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--line);
    position: absolute;
    inset: 0 0 auto;
    z-index: 2;
    color: var(--ink)
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase
}

.brand-mark {
    width: 28px;
    height: 28px;
    border: 1px solid var(--muted);
    border-radius: 50%;
    display: grid;
    place-items: center;
    color: var(--muted);
    font-size: 13px
}

.navlinks {
    display: flex;
    gap: 26px;
    font-size: 12px;
    color: var(--muted)
}

.navlinks a {
    text-decoration: none
}

.navlinks a:hover {
    color: var(--ink)
}

.hero {
    position: relative;
    overflow: hidden;
    background: var(--paper);
    color: var(--ink);
    min-height: 630px;
    padding: 151px 0 78px;
    border-bottom: 1px solid var(--line)
}

.hero:before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent 52%, rgba(31, 41, 55, .025) 52%, transparent 52.2%);
    pointer-events: none
}

.hero-grid {
    display: grid;
    grid-template-columns:1.2fr .8fr;
    gap: 48px;
    align-items: center;
    position: relative
}

.eyebrow {
    font-size: 11px;
    letter-spacing: .17em;
    text-transform: uppercase;
    color: var(--muted);
    font-weight: 750
}

.hero h1 {
    font: 500 clamp(50px, 7.5vw, 92px)/.98 var(--serif);
    letter-spacing: -.055em;
    margin: 22px 0 25px;
    max-width: 760px
}

.hero h1 em {
    font-style: normal
}

.hero-lede {
    font-size: 17px;
    color: var(--muted);
    max-width: 565px;
    line-height: 1.7
}

.hero-meta {
    display: flex;
    gap: 28px;
    flex-wrap: wrap;
    margin-top: 39px;
    color: var(--muted);
    font-size: 12px
}

.hero-meta strong {
    color: var(--ink);
    font-weight: 600;
    display: block;
    margin-bottom: 4px
}

.hero-art {
    position: relative;
    height: 350px;
    border: 1px solid var(--line);
    border-radius: 2px;
    background: var(--surface);
    overflow: hidden
}

.hero-art .gridlines {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(31, 41, 55, .08) 1px, transparent 1px), linear-gradient(90deg, rgba(31, 41, 55, .08) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: linear-gradient(130deg, black, transparent 88%)
}

.route {
    position: absolute;
    inset: 20px 20px 10px;
    width: calc(100% - 40px);
    height: calc(100% - 30px)
}

.orbit {
    fill: none;
    stroke: rgba(107, 114, 128, .65);
    stroke-dasharray: 3 6;
    stroke-width: 1.3
}

.plane {
    fill: var(--muted)
}

.point {
    fill: var(--surface);
    stroke: var(--muted);
    stroke-width: 2
}

.art-label {
    position: absolute;
    color: var(--muted);
    font-size: 10px;
    letter-spacing: .12em;
    text-transform: uppercase
}

.art-label.one {
    left: 12%;
    bottom: 19%
}

.art-label.two {
    right: 12%;
    top: 19%
}

.art-note {
    position: absolute;
    bottom: 18px;
    right: 18px;
    color: var(--muted);
    font-size: 10px
}

.hero-stamp {
    position: absolute;
    right: 30px;
    top: 24px;
    width: 72px;
    height: 72px;
    border: 1px solid var(--muted);
    border-radius: 50%;
    display: grid;
    place-items: center;
    text-align: center;
    color: var(--muted);
    font-size: 9px;
    line-height: 1.35;
    letter-spacing: .08em;
    text-transform: uppercase;
    transform: rotate(12deg)
}

.section {
    padding: 94px 0
}

.section-head {
    display: grid;
    grid-template-columns:.45fr 1fr;
    gap: 32px;
    margin-bottom: 44px
}

.kicker {
    font-size: 11px;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: var(--muted);
    font-weight: 750;
    padding-top: 10px
}

.section h2 {
    font: 500 clamp(36px, 5vw, 58px)/1.04 var(--serif);
    letter-spacing: -.04em;
    margin: 0;
    max-width: 740px
}

.intro {
    max-width: 680px;
    color: var(--muted);
    font-size: 16px;
    line-height: 1.8;
    margin: 18px 0 0
}

.question {
    display: grid;
    grid-template-columns:1fr 1fr;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    margin-top: 35px
}

.question div {
    padding: 23px 24px 23px 0
}

.question div + div {
    border-left: 1px solid var(--line);
    padding-left: 24px
}

.small-label {
    display: block;
    text-transform: uppercase;
    font-size: 10px;
    letter-spacing: .13em;
    color: var(--muted);
    font-weight: 700;
    margin-bottom: 7px
}

.question p {
    margin: 0;
    font-size: 14px;
    color: var(--ink)
}

.alternatives {
    display: grid;
    grid-template-columns:repeat(3, 1fr);
    gap: 12px;
    margin-top: 26px
}

.alt {
    padding: 20px 21px;
    background: var(--surface);
    border: 1px solid var(--line);
    min-height: 145px
}

.alt-num {
    font: italic 22px var(--serif);
    color: var(--muted)
}

.alt h3 {
    font-size: 17px;
    margin: 10px 0 4px
}

.alt p {
    font-size: 12px;
    color: var(--muted);
    margin: 0
}

.alt .metric {
    font-size: 11px;
    color: var(--muted);
    margin-top: 14px
}

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

.dark-section .kicker {
    color: var(--muted)
}

.dark-section .intro {
    color: var(--muted)
}

.dark-section .section-head {
    margin-bottom: 36px
}

.model-grid {
    display: grid;
    grid-template-columns:1fr 1fr;
    gap: 16px
}

.model-card {
    border: 1px solid var(--line);
    padding: 27px;
    background: var(--paper)
}

.model-card h3 {
    font: 500 25px var(--serif);
    margin: 0 0 14px
}

.model-card p {
    margin: 0;
    color: var(--muted);
    font-size: 13px
}

.formula {
    padding: 17px;
    background: var(--surface);
    border-left: 2px solid var(--line);
    font: 18px var(--serif);
    color: var(--ink);
    margin: 19px 0
}

.data-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 17px
}

.chip {
    border: 1px solid var(--line);
    border-radius: 99px;
    padding: 6px 10px;
    font-size: 10px;
    color: var(--muted)
}

.scenario-list {
    display: grid;
    gap: 12px;
    margin-top: 17px
}

.scenario {
    display: grid;
    grid-template-columns:66px 1fr 54px;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: var(--ink)
}

.bar {
    height: 5px;
    background: var(--surface);
    position: relative
}

.bar i {
    position: absolute;
    inset: 0 auto 0 0;
    background: var(--muted)
}

.scenario strong {
    font-size: 11px;
    text-align: right;
    color: var(--muted)
}

.methods-note {
    margin-top: 22px;
    padding: 15px 18px;
    border: 1px solid var(--line);
    color: var(--muted);
    font-size: 12px
}

.methods-note b {
    color: var(--ink)
}

.results {
    padding-top: 90px
}

.tabs {
    display: flex;
    gap: 6px;
    border-bottom: 1px solid var(--line);
    margin: 28px 0 25px
}

.tab {
    background: none;
    border: 0;
    padding: 13px 16px;
    color: var(--muted);
    font-size: 12px;
    cursor: pointer;
    border-bottom: 2px solid transparent
}

.tab[aria-selected="true"] {
    color: var(--ink);
    border-color: var(--ink);
    font-weight: 750
}

.panel[hidden] {
    display: none
}

.results-grid {
    display: grid;
    grid-template-columns:1.3fr .7fr;
    gap: 28px;
    align-items: start
}

.table-wrap {
    overflow-x: auto;
    background: var(--paper);
    border: 1px solid var(--line)
}

table {
    border-collapse: collapse;
    width: 100%;
    font-variant-numeric: tabular-nums
}

th, td {
    padding: 15px 17px;
    text-align: right;
    border-bottom: 1px solid var(--line);
    font-size: 13px
}

th {
    font-size: 10px;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--muted);
    background: var(--surface)
}

th:first-child, td:first-child {
    text-align: left
}

tr:last-child td {
    border-bottom: 0
}

.winner td {
    background: var(--surface);
    font-weight: 700
}

.winner td:first-child {
    border-left: 3px solid var(--accent)
}

.table-foot {
    padding: 12px 17px;
    color: var(--muted);
    font-size: 11px;
    border-top: 1px solid var(--line)
}

.chart {
    background: var(--surface);
    padding: 24px;
    height: 100%;
    min-height: 298px
}

.chart h3 {
    font: 500 21px var(--serif);
    margin: 0 0 5px
}

.chart p {
    font-size: 11px;
    color: var(--muted);
    margin: 0 0 26px
}

.bar-item {
    margin: 17px 0
}

.bar-caption {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    margin-bottom: 7px
}

.bar-track {
    height: 9px;
    position: relative;
    background: linear-gradient(90deg, transparent calc(50% - .5px), var(--muted) calc(50% - .5px), var(--muted) calc(50% + .5px), transparent calc(50% + .5px))
}

.bar-track i {
    position: absolute;
    top: 0;
    display: block;
    height: 100%;
    background: var(--muted)
}

.bar-track i.positive {
    left: 50%
}

.bar-track i.negative {
    right: 50%;
    background: var(--muted)
}

.bar-item:first-of-type .bar-track i {
    background: var(--accent)
}

.takeaway {
    background: var(--accent);
    color: var(--paper);
    padding: 21px 23px;
    margin-top: 15px;
    font: 20px/1.35 var(--serif)
}

.takeaway strong {
    color: var(--paper);
    font-weight: 700
}

.breakeven {
    background: var(--surface)
}

.breakeven-cards {
    display: grid;
    grid-template-columns:repeat(3, 1fr);
    gap: 14px;
    margin: 38px 0 18px
}

.be-card {
    background: var(--paper);
    padding: 22px 23px;
    border-top: 3px solid var(--muted)
}

.be-card:first-child {
    border-top-color: var(--accent)
}

.be-card .letter {
    font-size: 10px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--muted)
}

.be-card .number {
    font: 42px var(--serif);
    letter-spacing: -.03em;
    margin: 13px 0 1px
}

.be-card .units {
    font-size: 12px;
    color: var(--muted)
}

.be-card .occupancy {
    border-top: 1px solid var(--line);
    margin-top: 17px;
    padding-top: 13px;
    font-size: 12px;
    color: var(--muted)
}

.be-note {
    font-size: 11px;
    color: var(--muted);
    margin-top: 12px
}

.simulation {
    background: var(--paper);
    color: var(--ink);
    padding: 92px 0
}

.simulation .kicker {
    color: var(--muted)
}

.simulation .intro {
    color: var(--muted)
}

.sim-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--line);
    border-radius: 99px;
    padding: 8px 12px;
    color: var(--muted);
    font-size: 10px;
    letter-spacing: .08em;
    text-transform: uppercase;
    margin-top: 22px
}

.sim-status i {
    width: 6px;
    height: 6px;
    background: var(--muted);
    border-radius: 50%
}

.sim-grid {
    display: grid;
    grid-template-columns:1fr 1fr 1fr;
    gap: 12px;
    margin-top: 36px
}

.sim-card {
    border: 1px solid var(--line);
    padding: 20px;
    background: var(--surface)
}

.sim-card h3 {
    font-size: 12px;
    color: var(--muted);
    margin: 0 0 7px
}

.sim-card .big {
    font: 38px var(--serif);
    letter-spacing: -.03em
}

.sim-card .sub {
    font-size: 11px;
    color: var(--muted);
    margin-top: 5px
}

.sim-card .risk {
    display: inline-block;
    color: var(--muted);
    font-size: 10px;
    margin-top: 13px
}

.sim-caveat {
    border-left: 2px solid var(--muted);
    padding: 15px 18px;
    margin: 22px 0 0;
    background: var(--surface);
    color: var(--muted);
    font-size: 12px;
    line-height: 1.7
}

.sim-caveat strong {
    color: var(--ink)
}

.repo-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-top: 28px;
    background: var(--accent);
    color: var(--paper);
    text-decoration: none;
    padding: 14px 18px;
    font-size: 12px;
    font-weight: 750
}

.repo-link:hover {
    background: var(--ink)
}

.repo-link svg {
    width: 18px;
    height: 18px
}

.limits {
    padding: 93px 0
}

.limits-grid {
    display: grid;
    grid-template-columns:.85fr 1.15fr;
    gap: 70px
}

.limits h2 {
    font: 500 clamp(36px, 4vw, 50px)/1.05 var(--serif);
    margin: 12px 0 18px;
    letter-spacing: -.035em
}

.limits-copy {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.8
}

.limit-list {
    border-top: 1px solid var(--line)
}

.limit-row {
    display: grid;
    grid-template-columns:35px 1fr;
    gap: 14px;
    padding: 17px 0;
    border-bottom: 1px solid var(--line)
}

.limit-row .index {
    font: italic 18px var(--serif);
    color: var(--muted)
}

.limit-row p {
    margin: 0;
    color: var(--muted);
    font-size: 13px
}

.limit-row strong {
    display: block;
    color: var(--ink);
    font-size: 13px;
    margin-bottom: 3px
}

.sources {
    background: var(--surface);
    padding: 35px 0 44px
}

.sources-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    border-bottom: 1px solid var(--line);
    padding-bottom: 16px;
    margin-bottom: 20px
}

.sources h2 {
    font: 500 27px var(--serif);
    margin: 0
}

.source-links {
    display: grid;
    grid-template-columns:repeat(2, 1fr);
    gap: 12px 28px
}

.source-links a {
    font-size: 11px;
    color: var(--muted);
    text-decoration: none;
    border-bottom: 1px solid var(--line);
    padding: 9px 0
}

.source-links a:hover {
    color: var(--ink)
}

.footer {
    background: var(--surface);
    color: var(--muted);
    padding: 23px 0;
    font-size: 10px;
    border-top: 1px solid var(--line)
}

.footer .wrap {
    display: flex;
    justify-content: space-between;
    gap: 20px
}

.pdf-float {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 3;
    background: var(--accent);
    color: var(--paper);
    text-decoration: none;
    padding: 11px 15px;
    font-size: 11px;
    font-weight: 750;
    box-shadow: 0 4px 20px rgba(31, 41, 55, .15)
}

@media (max-width: 800px) {
    .navlinks {
        gap: 13px
    }

    .hero {
        padding-top: 120px
    }

    .hero-grid {
        grid-template-columns:1fr
    }

    .hero-art {
        height: 250px
    }

    .hero h1 {
        max-width: 650px
    }

    .section-head {
        grid-template-columns:1fr;
        gap: 7px
    }

    .model-grid, .results-grid, .limits-grid {
        grid-template-columns:1fr;
        gap: 17px
    }

    .limits-grid {
        gap: 25px
    }

    .chart {
        min-height: 0
    }

    .sim-grid {
        grid-template-columns:1fr
    }

    .simulation, .section, .limits {
        padding: 70px 0
    }

    .results {
        padding-top: 70px
    }
}

@media (max-width: 520px) {
    .wrap {
        width: min(100% - 32px, 1160px)
    }

    .nav {
        height: 62px
    }

    .navlinks a:nth-child(2), .navlinks a:nth-child(3) {
        display: none
    }

    .brand {
        font-size: 11px
    }

    .hero {
        min-height: 0;
        padding: 108px 0 49px
    }

    .hero h1 {
        font-size: 54px
    }

    .hero-lede {
        font-size: 15px
    }

    .hero-meta {
        gap: 18px
    }

    .hero-art {
        height: 220px
    }

    .hero-stamp {
        width: 60px;
        height: 60px;
        right: 14px;
        top: 14px
    }

    .alternatives, .breakeven-cards {
        grid-template-columns:1fr
    }

    .alt {
        min-height: 0
    }

    .question {
        grid-template-columns:1fr
    }

    .question div {
        padding: 17px 0
    }

    .question div + div {
        border-left: 0;
        border-top: 1px solid var(--line);
        padding-left: 0
    }

    .tabs {
        overflow: auto
    }

    .tab {
        white-space: nowrap;
        padding: 12px 10px
    }

    .source-links {
        grid-template-columns:1fr
    }

    .sources-head {
        display: block
    }

    .footer .wrap {
        display: block
    }

    .footer span {
        display: block;
        margin: 4px 0
    }

    .pdf-float {
        right: 12px;
        bottom: 12px
    }
}

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

.nav {
    color: var(--paper);
    border-bottom-color: rgba(250, 250, 247, .24)
}

.brand-mark {
    border-color: rgba(250, 250, 247, .62);
    color: #E9EDF2
}

.navlinks {
    color: #E9EDF2
}

.navlinks a:hover {
    color: var(--paper)
}

.hero {
    background: var(--ink);
    color: var(--paper);
    border-bottom-color: var(--ink)
}

.hero:before {
    background: linear-gradient(120deg, transparent 52%, rgba(250, 250, 247, .035) 52%, transparent 52.2%)
}

.hero .eyebrow {
    color: #E9EDF2
}

.hero h1, .hero h1 em {
    color: var(--paper)
}

.hero-lede, .hero-meta {
    color: #E9EDF2
}

.hero-meta strong {
    color: var(--paper)
}

.hero-art {
    border-color: rgba(250, 250, 247, .23);
    background: rgba(250, 250, 247, .035)
}

.hero-art .gridlines {
    background-image: linear-gradient(rgba(250, 250, 247, .075) 1px, transparent 1px), linear-gradient(90deg, rgba(250, 250, 247, .075) 1px, transparent 1px)
}

.orbit {
    stroke: rgba(233, 237, 242, .62)
}

.plane {
    fill: #E9EDF2
}

.point {
    fill: var(--ink);
    stroke: #E9EDF2
}

.art-label, .art-note, .hero-stamp {
    color: #E9EDF2
}

.hero-stamp {
    border-color: rgba(233, 237, 242, .62)
}

.simulation {
    background: var(--ink);
    color: var(--paper)
}

.simulation h2 {
    color: var(--paper)
}

.simulation .kicker, .simulation .intro {
    color: #E9EDF2
}

.sim-status {
    border-color: rgba(233, 237, 242, .35);
    color: #E9EDF2
}

.sim-status i {
    background: var(--accent)
}

.sim-card {
    border-color: rgba(250, 250, 247, .22);
    background: rgba(250, 250, 247, .045)
}

.sim-card h3, .sim-card .sub, .sim-card .risk {
    color: #E9EDF2
}

.sim-caveat {
    border-left-color: var(--muted);
    background: rgba(250, 250, 247, .06);
    color: #E9EDF2
}

.sim-caveat strong {
    color: var(--paper)
}

.takeaway {
    background: var(--accent);
    color: var(--ink)
}

.takeaway strong {
    color: var(--ink)
}

.bar-item:first-of-type .bar-track i {
    background: var(--accent)
}

.repo-link {
    background: var(--accent);
    color: var(--ink)
}

.repo-link:hover {
    background: var(--paper);
    color: var(--ink)
}

.pdf-float {
    background: var(--accent);
    color: var(--ink)
}

.language-switch {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    border: 1px solid rgba(250, 250, 247, .38);
    border-radius: 99px;
    padding: 2px;
    margin-left: 3px
}

.language-switch button {
    border: 0;
    border-radius: 99px;
    background: transparent;
    color: inherit;
    cursor: pointer;
    font-size: 10px;
    font-weight: 750;
    letter-spacing: .06em;
    padding: 5px 8px
}

.language-switch button[aria-pressed="true"] {
    background: var(--paper);
    color: var(--ink)
}

.language-switch button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px
}

@media (max-width: 520px) {
    .nav {
        height: auto;
        min-height: 72px;
        padding-top: 9px;
        padding-bottom: 9px;
        align-content: center;
        flex-wrap: wrap;
        row-gap: 8px
    }

    .brand {
        width: 100%;
        font-size: 10px
    }

    .navlinks {
        width: 100%;
        justify-content: space-between;
        gap: 6px;
        font-size: 10px
    }

    .navlinks a:nth-child(2), .navlinks a:nth-child(3) {
        display: inline
    }

    .language-switch {
        margin-left: 0
    }

    .language-switch button {
        padding: 4px 6px
    }

    .hero {
        padding-top: 135px
    }

    .hero h1 {
        font-size: clamp(41px, 11vw, 56px)
    }

    .hero-art {
        height: 210px
    }

    .hero-stamp {
        right: 14px;
        top: 14px
    }

    .pdf-float {
        font-size: 10px;
        padding: 9px 11px
    }

    .source-links {
        gap: 8px 18px
    }
}

@media (max-width: 390px) {
    .navlinks {
        font-size: 9px;
        gap: 4px
    }

    .language-switch button {
        font-size: 9px;
        padding: 4px 5px
    }

    .hero-meta {
        display: grid;
        grid-template-columns:1fr 1fr;
        gap: 14px
    }

    .hero-art {
        height: 190px
    }

    .section h2 {
        font-size: 36px
    }
}

@media (min-width: 521px) and (max-width: 900px) {
    .navlinks {
        gap: 12px
    }

    .hero-grid {
        gap: 28px
    }

    .hero-art {
        height: 300px
    }

    .section-head {
        grid-template-columns:.32fr 1fr;
        gap: 24px
    }

    .results-grid {
        grid-template-columns:1fr
    }

    .chart {
        min-height: 280px
    }
}

@media (max-width: 620px) {
    .table-wrap table {
        min-width: 560px
    }

    .question p {
        font-size: 13px
    }

    .model-card {
        padding: 22px
    }

    .be-card {
        padding: 19px
    }

    .limits-grid {
        gap: 28px
    }

    .sim-grid {
        gap: 10px
    }
}

@media (max-width: 520px) {
    .pdf-float {
        display: none
    }
}