:root {
    color-scheme: dark;
    --paper: #1a211f;
    --paper-dark: #25302b;
    --ink: #f1f2e9;
    --muted: #b8c3b5;
    --line: #536158;
    --signal: #d6e78b;
    --signal-ink: #1a211f;
    --night: #101713;
    --night-line: #536158;
    --night-muted: #c4cfc2;
    --night-meta: #a9b6a8;
    --client-ink: #d5dfd1;
    --serif: "Newsreader", "Iowan Old Style", "Palatino Linotype", serif;
    --mono: "DM Mono", "Courier New", monospace;
    --gutter: clamp(1.25rem, 4vw, 4.75rem);
    --header-height: 5.25rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--serif);
    font-size: 1.125rem;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: inherit;
}

.mono {
    font-family: var(--mono);
}

.skip-link {
    position: fixed;
    top: 0;
    left: 1rem;
    z-index: 100;
    padding: 0.75rem 1rem;
    background: var(--ink);
    color: var(--paper);
    font-family: var(--mono);
    font-size: 0.75rem;
    transform: translateY(-110%);
    transition: transform 160ms ease;
}

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

.site-header {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 10;
    display: flex;
    width: 100%;
    min-height: var(--header-height);
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--gutter);
    border-bottom: 1px solid var(--line);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
}

.brand-mark {
    display: grid;
    width: 2.25rem;
    height: 2.25rem;
    place-items: center;
    border: 1px solid var(--ink);
    border-radius: 50%;
    font-family: var(--mono);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: -0.08em;
}

.brand-name {
    font-family: var(--mono);
    font-size: 0.78rem;
    letter-spacing: 0.02em;
}

.site-nav {
    display: flex;
    gap: clamp(1.25rem, 3vw, 3.25rem);
    font-family: var(--mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.site-nav a {
    position: relative;
    text-decoration: none;
}

.site-nav a::after {
    position: absolute;
    right: 0;
    bottom: -0.35rem;
    left: 0;
    height: 1px;
    background: var(--signal);
    content: "";
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 220ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
    transform: scaleX(1);
    transform-origin: left;
}

.hero {
    position: relative;
    display: grid;
    min-height: 100svh;
    grid-template-columns: minmax(0, 1.45fr) minmax(19rem, 0.7fr);
    grid-template-rows: auto 1fr auto;
    column-gap: clamp(2rem, 7vw, 8rem);
    padding: calc(var(--header-height) + clamp(3rem, 7vw, 7rem)) var(--gutter) 2.25rem;
    overflow: hidden;
}

.hero::before {
    position: absolute;
    top: var(--header-height);
    right: var(--gutter);
    bottom: 0;
    width: 1px;
    background: var(--line);
    content: "";
    opacity: 0.65;
}

.hero-index {
    position: absolute;
    top: calc(var(--header-height) + 1.25rem);
    right: calc(var(--gutter) + 0.85rem);
    color: var(--muted);
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    writing-mode: vertical-rl;
}

.hero-copy {
    align-self: center;
}

.eyebrow {
    margin: 0 0 1.8rem;
    font-family: var(--mono);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.eyebrow::before {
    display: inline-block;
    width: 1.75rem;
    height: 1px;
    margin-right: 0.8rem;
    background: var(--signal);
    content: "";
    vertical-align: middle;
}

h1,
h2,
h3,
p {
    text-wrap: pretty;
}

h1 {
    max-width: 13ch;
    margin: 0;
    font-size: clamp(3.7rem, 8.2vw, 9.2rem);
    font-weight: 400;
    letter-spacing: -0.057em;
    line-height: 0.83;
}

h1 em,
h2 em {
    color: var(--signal);
    font-weight: 400;
}

.hero-intro {
    max-width: 34rem;
    margin: clamp(2.25rem, 5vw, 4.5rem) 0 0 auto;
    font-size: clamp(1.18rem, 1.6vw, 1.55rem);
    line-height: 1.42;
}

.system-sketch {
    position: relative;
    width: 100%;
    max-width: 34rem;
    min-height: 20rem;
    align-self: center;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.system-sketch svg {
    position: absolute;
    inset: 3.5rem 0 auto;
    width: 100%;
    height: 13rem;
    overflow: visible;
}

.path {
    fill: none;
    stroke: var(--muted);
    stroke-width: 1;
    vector-effect: non-scaling-stroke;
}

.system-sketch circle {
    fill: var(--signal);
}

.node {
    position: absolute;
    z-index: 1;
    display: grid;
    width: 4.75rem;
    height: 4.75rem;
    place-items: center;
    border: 1px solid var(--ink);
    border-radius: 50%;
    background: var(--paper);
    font-family: var(--mono);
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

.node-input {
    top: 3.5rem;
    left: 0;
}

.node-system {
    top: 6.6rem;
    left: 45%;
    border-color: var(--signal);
    color: var(--signal);
}

.node-output {
    right: 0;
    bottom: 4.5rem;
}

.scroll-cue {
    display: flex;
    grid-column: 1 / -1;
    align-items: center;
    justify-content: space-between;
    padding-top: 1.5rem;
    border-top: 1px solid var(--line);
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    text-decoration: none;
    text-transform: uppercase;
}

.scroll-cue span:last-child {
    color: var(--signal);
    font-size: 1rem;
    transition: transform 180ms ease;
}

.scroll-cue:hover span:last-child {
    transform: translateY(0.3rem);
}

.section-pad {
    padding: clamp(5rem, 10vw, 10rem) var(--gutter);
}

.section-meta {
    display: grid;
    grid-template-columns: 1fr 2fr;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--line);
    color: var(--muted);
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.statement {
    background: var(--paper-dark);
    padding-block: clamp(5rem, 7vw, 7.5rem);
}

.statement-body {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(18rem, 0.75fr);
    gap: clamp(3rem, 10vw, 11rem);
    padding-top: clamp(2.5rem, 4vw, 4.5rem);
}

.statement h2,
.contact h2 {
    max-width: 11ch;
    margin: 0;
    font-size: clamp(3rem, 6.3vw, 7rem);
    font-weight: 400;
    letter-spacing: -0.05em;
    line-height: 0.93;
}

.statement-copy {
    align-self: end;
    max-width: 32rem;
    font-size: clamp(1.1rem, 1.45vw, 1.4rem);
}

.statement-copy p {
    margin: 0;
}

.capabilities-heading {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: end;
    padding: clamp(3rem, 6vw, 6rem) 0 clamp(3rem, 5vw, 5rem);
}

.capabilities-heading h2 {
    margin: 0;
    font-size: clamp(2.8rem, 5.5vw, 6rem);
    font-weight: 400;
    letter-spacing: -0.045em;
    line-height: 0.95;
}

.capabilities-heading p {
    max-width: 29rem;
    margin: 0 0 0 auto;
    color: var(--muted);
    font-size: 1.1rem;
}

.capability {
    display: grid;
    grid-template-columns: 4rem minmax(0, 1fr);
    gap: clamp(1.5rem, 3vw, 4rem);
    align-items: start;
    padding: clamp(2rem, 4vw, 3.5rem) 0;
    border-top: 1px solid var(--line);
}

.capability:last-child {
    border-bottom: 1px solid var(--line);
}

.capability-number {
    padding-top: 0.5rem;
    color: var(--signal);
    font-size: 0.75rem;
}

.capability h3 {
    margin: 0 0 0.85rem;
    font-size: clamp(1.8rem, 3vw, 3.15rem);
    font-weight: 400;
    letter-spacing: -0.035em;
    line-height: 1;
}

.capability p {
    max-width: 42rem;
    margin: 0;
    color: var(--muted);
    font-size: 1rem;
}

.client-line {
    display: grid;
    grid-template-columns: minmax(10rem, 0.55fr) minmax(0, 2.45fr);
    gap: 2rem;
    align-items: center;
    padding: 2rem var(--gutter);
    border-top: 1px solid var(--line);
    background: var(--paper-dark);
}

.client-line-label {
    color: var(--muted);
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.client-line-label span {
    display: inline-block;
    margin-left: 0.5rem;
    color: var(--signal);
}

.client-names {
    display: flex;
    gap: clamp(2.5rem, 5vw, 5rem);
    margin: 0;
    padding: 0.5rem 0 1rem;
    color: var(--client-ink);
    font-size: clamp(1rem, 1.6vw, 1.35rem);
    list-style: none;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-snap-type: x proximity;
    scrollbar-color: var(--line) transparent;
    scrollbar-width: thin;
}

.client-names li {
    flex: 0 0 clamp(8rem, 11vw, 10.5rem);
    scroll-snap-align: start;
}

.client-names a {
    display: inline-block;
    color: inherit;
    text-decoration: underline;
    text-decoration-color: transparent;
    text-underline-offset: 0.3em;
    transition: color 180ms ease, text-decoration-color 180ms ease;
    white-space: nowrap;
}

.client-names a:hover,
.client-names a:focus-visible {
    color: var(--ink);
    text-decoration-color: var(--signal);
}

.contact {
    position: relative;
    padding-bottom: 2rem;
    background: var(--night);
    color: var(--ink);
    overflow: hidden;
}

.section-meta-light {
    position: relative;
    z-index: 1;
    border-color: var(--night-line);
    color: var(--night-muted);
}

.contact-body {
    position: relative;
    z-index: 1;
    max-width: 68rem;
    padding: clamp(4rem, 9vw, 9rem) 0 clamp(5rem, 10vw, 10rem);
}

.contact .eyebrow {
    color: var(--night-muted);
}

.contact-note {
    max-width: 34rem;
    margin: clamp(2rem, 4vw, 4rem) 0;
    color: var(--night-muted);
    font-size: clamp(1.08rem, 1.5vw, 1.35rem);
}

.contact-link {
    display: flex;
    max-width: 38rem;
    align-items: center;
    justify-content: space-between;
    padding: 1.1rem 0;
    border-bottom: 1px solid var(--night-line);
    font-family: var(--mono);
    font-size: clamp(0.82rem, 1.4vw, 1.05rem);
    text-decoration: none;
    transition: border-color 180ms ease, color 180ms ease;
}

.contact-link span:last-child {
    color: var(--signal);
    font-size: 1.3rem;
}

.contact-link:hover,
.contact-link:focus-visible {
    border-color: var(--signal);
    color: var(--signal);
}

.site-footer {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    padding-top: 1.5rem;
    border-top: 1px solid var(--night-line);
    color: var(--night-meta);
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.site-footer span:nth-child(2) {
    text-align: center;
}

.site-footer a {
    justify-self: end;
    text-decoration: none;
}

.reveal {
    animation: enter 800ms cubic-bezier(0.2, 0.75, 0.25, 1) both;
}

.reveal-delay-1 {
    animation-delay: 100ms;
}

.reveal-delay-2 {
    animation-delay: 220ms;
}

.reveal-delay-3 {
    animation-delay: 360ms;
}

@keyframes enter {
    from {
        opacity: 0;
        transform: translateY(1.25rem);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 960px) {
    .hero {
        min-height: auto;
        grid-template-columns: 1fr;
        row-gap: 5rem;
        padding-top: calc(var(--header-height) + 5rem);
    }

    .hero-copy {
        max-width: 50rem;
    }

    .hero-intro {
        margin-left: 0;
    }

    .system-sketch {
        width: min(100%, 36rem);
        justify-self: end;
    }

    .scroll-cue {
        margin-top: 1rem;
    }

    .statement-body {
        grid-template-columns: 1fr;
    }

    .statement-copy {
        max-width: 38rem;
        margin-left: auto;
    }

    .capability {
        grid-template-columns: 3rem minmax(0, 1fr);
    }

}

@media (max-width: 680px) {
    :root {
        --header-height: 4.5rem;
    }

    body {
        font-size: 1rem;
    }

    .site-nav a:not(:last-child) {
        display: none;
    }

    .hero {
        row-gap: 4rem;
        padding-top: calc(var(--header-height) + 4rem);
    }

    .hero::before,
    .hero-index {
        display: none;
    }

    h1 {
        font-size: clamp(3.15rem, 16vw, 5.2rem);
        line-height: 0.88;
    }

    .hero-intro {
        margin-top: 2.5rem;
    }

    .system-sketch {
        min-height: 16rem;
    }

    .system-sketch svg {
        top: 3rem;
        height: 10rem;
    }

    .node {
        width: 4rem;
        height: 4rem;
    }

    .node-input {
        top: 3rem;
    }

    .node-system {
        top: 5.85rem;
    }

    .node-output {
        bottom: 3.5rem;
    }

    .section-meta {
        grid-template-columns: 1fr 1fr;
    }

    .statement h2,
    .contact h2 {
        font-size: clamp(3rem, 14vw, 5rem);
    }

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

    .capabilities-heading p {
        margin-left: 0;
    }

    .capability {
        grid-template-columns: 2rem minmax(0, 1fr);
        gap: 1rem;
    }

    .client-line {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .client-names {
        gap: 1.5rem;
    }

    .client-names li {
        flex-basis: 8.5rem;
    }

    .site-footer {
        grid-template-columns: 1fr auto;
        gap: 1rem;
    }

    .site-footer span:nth-child(2) {
        display: none;
    }

}

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

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}