@layer reset, base, layout, components, utilities;

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

  html {
    scroll-behavior: smooth;
  }

  body,
  h1,
  h2,
  h3,
  p,
  figure,
  blockquote,
  ol,
  ul {
    margin: 0;
  }

  img,
  svg {
    display: block;
  }

  img {
    max-width: 100%;
  }

  a {
    color: inherit;
    text-decoration: none;
  }

  button,
  a {
    -webkit-tap-highlight-color: transparent;
  }
}

@layer base {
  :root {
    --paper: oklch(0.955 0.012 86);
    --paper-deep: oklch(0.91 0.017 86);
    --ink: oklch(0.205 0.018 256);
    --ink-soft: oklch(0.39 0.018 256);
    --muted: oklch(0.51 0.014 256);
    --rule: oklch(0.78 0.014 86);
    --blue: oklch(0.49 0.21 259);
    --blue-dark: oklch(0.36 0.17 259);
    --blue-pale: oklch(0.89 0.055 259);
    --blue-ink: oklch(0.965 0.012 259);
    --display: "Geologica", "Avenir Next", sans-serif;
    --body: "Source Serif 4", Georgia, serif;
    --space-2xs: 0.25rem;
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    --page: clamp(1.25rem, 4vw, 4.5rem);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  }

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

  body {
    min-width: 20rem;
    overflow-x: hidden;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--body);
    font-size: 1.0625rem;
    line-height: 1.58;
    text-rendering: optimizeLegibility;
  }

  body::before {
    position: fixed;
    z-index: -1;
    inset: 0;
    background-image:
      linear-gradient(color-mix(in oklch, var(--rule) 32%, transparent) 1px, transparent 1px),
      linear-gradient(90deg, color-mix(in oklch, var(--rule) 32%, transparent) 1px, transparent 1px);
    background-size: 4rem 4rem;
    content: "";
    opacity: 0.25;
    pointer-events: none;
  }

  h1,
  h2,
  h3,
  .eyebrow,
  .overline,
  .section-kicker,
  .site-header,
  .button,
  .text-link,
  .hero-proof,
  .step-number,
  .step-status,
  .work-entry-meta,
  .capability-list,
  .system-trace,
  .experience-year,
  .note-meta,
  .site-footer {
    font-family: var(--display);
  }

  h1,
  h2,
  h3 {
    font-weight: 500;
    letter-spacing: -0.045em;
  }

  h1 {
    max-width: 11ch;
    font-size: clamp(3.4rem, 7.7vw, 8.5rem);
    line-height: 0.91;
  }

  h2 {
    font-size: clamp(2.5rem, 5.25vw, 5.7rem);
    line-height: 0.98;
  }

  h3 {
    font-size: clamp(1.4rem, 2.1vw, 2.1rem);
    line-height: 1.08;
  }

  :focus-visible {
    outline: 0.1875rem solid var(--blue);
    outline-offset: 0.25rem;
  }
}

@layer layout {
  .section {
    padding: clamp(6rem, 12vw, 11rem) var(--page);
  }

  .section-kicker {
    display: grid;
    grid-template-columns: 4rem 1fr;
    gap: var(--space-md);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--rule);
    color: var(--muted);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    line-height: 1;
    text-transform: uppercase;
  }

  .section-kicker-light {
    border-color: color-mix(in oklch, var(--blue-ink) 20%, transparent);
    color: color-mix(in oklch, var(--blue-ink) 58%, transparent);
  }

  .overline {
    color: var(--blue);
    font-size: 0.72rem;
    font-weight: 650;
    letter-spacing: 0.16em;
    line-height: 1.2;
    text-transform: uppercase;
  }

  .overline-light {
    color: color-mix(in oklch, var(--blue-ink) 70%, transparent);
  }
}

@layer components {
  .skip-link {
    position: fixed;
    z-index: 100;
    top: var(--space-md);
    left: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: var(--ink);
    color: var(--paper);
    font-family: var(--display);
    font-size: 0.8rem;
    transform: translateY(-200%);
    transition: transform 180ms var(--ease-out);
  }

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

  .site-header {
    position: fixed;
    z-index: 50;
    top: 0;
    right: 0;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 5rem;
    padding: 0 var(--page);
    border-bottom: 1px solid transparent;
    font-size: 0.72rem;
    font-weight: 550;
    letter-spacing: 0.03em;
    transition:
      background-color 250ms ease,
      border-color 250ms ease;
  }

  .site-header.is-scrolled,
  .site-header.is-open {
    border-color: color-mix(in oklch, var(--rule) 72%, transparent);
    background: var(--paper);
  }

  .wordmark {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
  }

  .wordmark-mark {
    display: grid;
    width: 2rem;
    height: 2rem;
    place-items: center;
    background: var(--ink);
    color: var(--paper);
    font-size: 0.68rem;
    letter-spacing: -0.03em;
  }

  .wordmark-name {
    font-size: 0.8rem;
    font-weight: 620;
    letter-spacing: -0.01em;
  }

  .primary-nav {
    display: flex;
    align-items: center;
    gap: clamp(1rem, 2vw, 2rem);
  }

  .primary-nav > a:not(.nav-cta) {
    position: relative;
  }

  .primary-nav > a:not(.nav-cta)::after {
    position: absolute;
    right: 0;
    bottom: -0.35rem;
    left: 0;
    height: 1px;
    background: var(--ink);
    content: "";
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 260ms var(--ease-out);
  }

  .primary-nav > a:not(.nav-cta):hover::after {
    transform: scaleX(1);
    transform-origin: left;
  }

  .nav-cta,
  .button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    min-height: 3rem;
    padding: 0 var(--space-lg);
    border: 1px solid var(--ink);
    font-weight: 600;
    letter-spacing: -0.01em;
    transition:
      background-color 220ms ease,
      color 220ms ease,
      transform 220ms var(--ease-out);
  }

  .nav-cta {
    min-height: 2.55rem;
    background: var(--ink);
    color: var(--paper);
  }

  .nav-cta svg,
  .button svg,
  .text-link svg {
    width: 1rem;
    fill: none;
    stroke: currentColor;
    stroke-linecap: square;
    stroke-width: 1.5;
  }

  .nav-cta:hover,
  .button:hover {
    transform: translateY(-0.14rem);
  }

  .menu-toggle {
    display: none;
    align-items: center;
    gap: var(--space-sm);
    border: 0;
    background: transparent;
    color: inherit;
    font: inherit;
  }

  .menu-glyph,
  .menu-glyph::after {
    display: block;
    width: 1.25rem;
    height: 1px;
    background: currentColor;
    content: "";
    transition: transform 200ms var(--ease-out);
  }

  .menu-glyph::after {
    transform: translateY(0.32rem);
  }

  .menu-toggle[aria-expanded="true"] .menu-glyph {
    transform: rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] .menu-glyph::after {
    transform: rotate(-90deg);
  }

  .hero {
    position: relative;
    display: grid;
    min-height: 100svh;
    grid-template-columns: minmax(0, 7fr) minmax(18rem, 4fr);
    grid-template-rows: auto 1fr auto;
    gap: var(--space-xl) clamp(2rem, 5vw, 6rem);
    padding: clamp(7.5rem, 13vh, 10rem) var(--page) var(--space-xl);
    border-bottom: 1px solid var(--rule);
    overflow: hidden;
  }

  .hero-grid {
    position: absolute;
    z-index: -1;
    top: 0;
    right: var(--page);
    bottom: 0;
    left: var(--page);
    border-right: 1px solid color-mix(in oklch, var(--rule) 48%, transparent);
    border-left: 1px solid color-mix(in oklch, var(--rule) 48%, transparent);
    pointer-events: none;
  }

  .hero-grid::before {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 61%;
    width: 1px;
    background: color-mix(in oklch, var(--rule) 48%, transparent);
    content: "";
  }

  .hero-index {
    display: flex;
    grid-column: 1 / -1;
    justify-content: space-between;
    color: var(--muted);
    font-family: var(--display);
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
  }

  .hero-copy {
    align-self: center;
    padding-bottom: clamp(1rem, 3vh, 3rem);
  }

  .eyebrow {
    margin-bottom: clamp(1.5rem, 3vw, 3rem);
    color: var(--ink-soft);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }

  .signal-word {
    position: relative;
    color: var(--blue);
    white-space: nowrap;
  }

  .signal-word::after {
    position: absolute;
    right: -0.12em;
    bottom: 0.04em;
    width: 0.12em;
    height: 0.12em;
    background: currentColor;
    content: "";
  }

  .hero-intro {
    max-width: 39rem;
    margin-top: clamp(2rem, 4vw, 3.5rem);
    color: var(--ink-soft);
    font-size: clamp(1.1rem, 1.65vw, 1.45rem);
    line-height: 1.48;
  }

  .hero-actions {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
  }

  .button {
    min-height: 3.35rem;
    font-size: 0.78rem;
  }

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

  .button-primary:hover {
    background: var(--blue);
    border-color: var(--blue);
  }

  .text-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid currentColor;
    font-size: 0.76rem;
    font-weight: 600;
  }

  .text-link span {
    transition: transform 220ms var(--ease-out);
  }

  .text-link:hover span {
    transform: translateY(0.2rem);
  }

  .portrait {
    position: relative;
    align-self: center;
    width: min(100%, 30rem);
    justify-self: end;
  }

  .portrait-signal {
    position: absolute;
    top: -1.1rem;
    right: -1.1rem;
    width: 48%;
    aspect-ratio: 1;
    background: var(--blue);
  }

  .portrait-frame {
    position: relative;
    aspect-ratio: 0.82;
    border: 1px solid var(--ink);
    background: var(--paper-deep);
    overflow: hidden;
  }

  .portrait-frame::after {
    position: absolute;
    inset: 0;
    background: var(--blue);
    content: "";
    mix-blend-mode: color;
    opacity: 0.1;
    pointer-events: none;
  }

  .portrait-frame img {
    width: 100%;
    height: 100%;
    filter: grayscale(1) contrast(1.04);
    object-fit: cover;
    object-position: 50% 50%;
    transform: scale(1.08);
    transition:
      filter 500ms ease,
      transform 700ms var(--ease-out);
  }

  .portrait:hover img {
    filter: grayscale(0.35) contrast(1.02);
    transform: scale(1.04);
  }

  .portrait-reticle {
    position: absolute;
    width: 1rem;
    height: 1rem;
  }

  .portrait-reticle::before,
  .portrait-reticle::after {
    position: absolute;
    background: var(--paper);
    content: "";
  }

  .portrait-reticle::before {
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
  }

  .portrait-reticle::after {
    top: 0;
    left: 50%;
    width: 1px;
    height: 100%;
  }

  .portrait-reticle-a {
    top: var(--space-md);
    left: var(--space-md);
  }

  .portrait-reticle-b {
    right: var(--space-md);
    bottom: var(--space-md);
  }

  .portrait figcaption {
    display: flex;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md) 0 0;
    font-family: var(--display);
    font-size: 0.62rem;
    font-weight: 550;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .portrait figcaption span:last-child {
    color: var(--muted);
  }

  .hero-proof {
    display: grid;
    grid-column: 1 / -1;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-top: clamp(1rem, 3vh, 3rem);
    border-top: 1px solid var(--rule);
  }

  .hero-proof > div {
    display: flex;
    min-height: 5.25rem;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-2xs);
    padding: var(--space-md) var(--space-lg);
    border-right: 1px solid var(--rule);
  }

  .hero-proof > div:first-child {
    padding-left: 0;
  }

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

  .hero-proof strong {
    font-size: 0.9rem;
    font-weight: 650;
    letter-spacing: -0.02em;
  }

  .hero-proof span {
    color: var(--muted);
    font-size: 0.62rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
  }

  .principle-heading {
    display: grid;
    grid-template-columns: minmax(8rem, 2fr) minmax(20rem, 7fr) minmax(16rem, 3fr);
    gap: clamp(2rem, 5vw, 6rem);
    align-items: start;
    padding-top: clamp(3rem, 7vw, 7rem);
  }

  .principle-heading h2 {
    max-width: 13ch;
  }

  .principle-lede {
    max-width: 31rem;
    color: var(--ink-soft);
    font-size: clamp(1.08rem, 1.5vw, 1.3rem);
  }

  .authority-model {
    margin-top: clamp(5rem, 10vw, 10rem);
    border-top: 1px solid var(--ink);
  }

  .model-step {
    display: grid;
    grid-template-columns: 4rem minmax(0, 1fr) auto;
    gap: var(--space-xl);
    align-items: start;
    padding: var(--space-xl) 0;
    border-bottom: 1px solid var(--rule);
  }

  .step-number {
    color: var(--muted);
    font-size: 0.68rem;
    font-weight: 600;
  }

  .model-step h3 {
    margin-bottom: var(--space-sm);
  }

  .model-step p {
    max-width: 46rem;
    color: var(--ink-soft);
  }

  .step-status {
    align-self: center;
    min-width: 6.75rem;
    padding: 0.45rem 0.7rem;
    border: 1px solid var(--rule);
    color: var(--muted);
    font-size: 0.62rem;
    font-weight: 650;
    letter-spacing: 0.1em;
    text-align: center;
    text-transform: uppercase;
  }

  .step-status-active {
    border-color: var(--blue);
    background: var(--blue);
    color: var(--blue-ink);
  }

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

  .work-intro {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(18rem, 4fr);
    gap: clamp(2rem, 7vw, 8rem);
    align-items: end;
    padding: clamp(3rem, 7vw, 7rem) 0 clamp(5rem, 9vw, 9rem);
  }

  .work-intro h2 {
    max-width: 11ch;
  }

  .work-intro > p {
    color: color-mix(in oklch, var(--paper) 68%, transparent);
    font-size: clamp(1.05rem, 1.45vw, 1.28rem);
  }

  .work-ledger {
    border-top: 1px solid color-mix(in oklch, var(--paper) 22%, transparent);
  }

  .work-entry {
    padding: var(--space-xl) 0 clamp(5rem, 8vw, 8rem);
    border-bottom: 1px solid color-mix(in oklch, var(--paper) 22%, transparent);
  }

  .work-entry-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: clamp(3rem, 6vw, 6rem);
    color: color-mix(in oklch, var(--paper) 52%, transparent);
    font-size: 0.64rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }

  .work-entry-body {
    display: grid;
    grid-template-columns: minmax(18rem, 5fr) minmax(22rem, 7fr);
    gap: clamp(3rem, 8vw, 10rem);
  }

  .work-entry-body > h3 {
    font-size: clamp(2.6rem, 5vw, 5.6rem);
  }

  .work-entry-body > p,
  .work-entry-body > div > p:not(.overline) {
    max-width: 37rem;
    color: color-mix(in oklch, var(--paper) 72%, transparent);
    font-size: clamp(1.08rem, 1.55vw, 1.35rem);
  }

  .capability-list {
    display: grid;
    margin: var(--space-xl) 0;
    padding: 0;
    border-top: 1px solid color-mix(in oklch, var(--paper) 18%, transparent);
    list-style: none;
  }

  .capability-list li {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid color-mix(in oklch, var(--paper) 18%, transparent);
    color: color-mix(in oklch, var(--paper) 78%, transparent);
    font-size: 0.72rem;
    letter-spacing: 0.02em;
  }

  .button-inverse {
    border-color: var(--paper);
    color: var(--paper);
  }

  .button-inverse:hover {
    background: var(--paper);
    color: var(--ink);
  }

  .work-entry-aegis {
    padding-bottom: 0;
    border-bottom: 0;
  }

  .work-entry-aegis .work-entry-body h3 {
    margin: var(--space-md) 0 var(--space-lg);
    font-size: clamp(3.2rem, 6.5vw, 7.5rem);
  }

  .text-link-light {
    margin-top: var(--space-xl);
    color: var(--paper);
  }

  .system-trace {
    align-self: end;
    border: 1px solid color-mix(in oklch, var(--paper) 26%, transparent);
    background: oklch(0.235 0.019 256);
  }

  .trace-heading {
    display: flex;
    justify-content: space-between;
    padding: var(--space-md);
    border-bottom: 1px solid color-mix(in oklch, var(--paper) 18%, transparent);
    color: color-mix(in oklch, var(--paper) 64%, transparent);
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }

  .live-indicator {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
  }

  .live-indicator i {
    width: 0.45rem;
    height: 0.45rem;
    background: var(--blue-pale);
    border-radius: 50%;
    box-shadow: 0 0 0 0.2rem color-mix(in oklch, var(--blue) 30%, transparent);
  }

  .system-trace ol {
    padding: 0;
    list-style: none;
  }

  .system-trace li {
    position: relative;
    display: grid;
    grid-template-columns: 2rem 1fr auto;
    gap: var(--space-md);
    align-items: center;
    min-height: 3.65rem;
    padding: 0 var(--space-md);
    border-bottom: 1px solid color-mix(in oklch, var(--paper) 14%, transparent);
  }

  .system-trace li:last-child {
    border-bottom: 0;
  }

  .system-trace li span,
  .system-trace li em {
    color: color-mix(in oklch, var(--paper) 48%, transparent);
    font-size: 0.62rem;
    font-style: normal;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .system-trace li strong {
    font-size: 0.73rem;
    font-weight: 550;
  }

  .system-trace li.trace-authority {
    background: var(--blue);
    color: var(--blue-ink);
  }

  .system-trace li.trace-authority span,
  .system-trace li.trace-authority em {
    color: color-mix(in oklch, var(--blue-ink) 72%, transparent);
  }

  .experience-layout {
    display: grid;
    grid-template-columns: minmax(18rem, 4fr) minmax(24rem, 7fr);
    gap: clamp(4rem, 9vw, 11rem);
    align-items: start;
    padding-top: clamp(4rem, 8vw, 8rem);
  }

  .experience-heading {
    position: sticky;
    top: 8rem;
  }

  .experience-heading h2 {
    max-width: 8.5ch;
    margin-top: var(--space-xl);
  }

  .experience-list {
    border-top: 1px solid var(--ink);
  }

  .experience-item {
    display: grid;
    grid-template-columns: 6rem minmax(0, 1fr);
    gap: var(--space-lg);
    align-items: start;
    padding: var(--space-xl) 0 clamp(3rem, 5vw, 5rem);
    border-bottom: 1px solid var(--rule);
  }

  .experience-year {
    color: var(--muted);
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }

  .experience-item h3 {
    margin-bottom: var(--space-md);
  }

  .experience-item p {
    max-width: 34rem;
    color: var(--ink-soft);
  }

  .notes {
    padding-bottom: 0;
    background: var(--paper-deep);
  }

  .notes-heading {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(18rem, 4fr);
    gap: clamp(2rem, 7vw, 8rem);
    align-items: end;
    padding: clamp(4rem, 8vw, 8rem) 0;
  }

  .notes-heading h2 {
    max-width: 9ch;
  }

  .notes-heading p {
    color: var(--ink-soft);
    font-size: clamp(1.08rem, 1.45vw, 1.3rem);
  }

  .notes-list {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    margin: 0 calc(var(--page) * -1);
    border-top: 1px solid var(--ink);
  }

  .note {
    position: relative;
    display: flex;
    min-height: 28rem;
    flex-direction: column;
    gap: var(--space-lg);
    justify-content: flex-start;
    padding: clamp(2rem, 4vw, 4rem);
    border-right: 1px solid var(--rule);
    overflow: hidden;
  }

  .note:last-child {
    border-right: 0;
  }

  .note-featured {
    background: var(--blue);
    color: var(--blue-ink);
    transition: background-color 250ms ease;
  }

  .note-featured:hover {
    background: var(--blue-dark);
  }

  .note-meta {
    font-size: 0.62rem;
    font-weight: 620;
    letter-spacing: 0.11em;
    text-transform: uppercase;
  }

  .note:not(.note-featured) .note-meta {
    color: var(--muted);
  }

  .note h3 {
    max-width: 11ch;
    font-size: clamp(2rem, 3.5vw, 4rem);
  }

  .note p {
    max-width: 31rem;
    color: currentColor;
    opacity: 0.76;
  }

  .note-arrow,
  .note-index {
    position: absolute;
    right: clamp(2rem, 4vw, 4rem);
    bottom: clamp(2rem, 4vw, 4rem);
    font-family: var(--display);
    font-size: 2rem;
  }

  .note-index {
    color: color-mix(in oklch, var(--ink) 18%, transparent);
    font-size: clamp(5rem, 9vw, 9rem);
    font-weight: 600;
    letter-spacing: -0.08em;
    line-height: 0.75;
  }

  .about {
    background: var(--paper-deep);
  }

  .about-layout {
    display: grid;
    grid-template-columns: minmax(0, 6fr) minmax(18rem, 3fr);
    gap: clamp(4rem, 10vw, 12rem);
    padding-top: clamp(4rem, 8vw, 8rem);
  }

  .about-layout h2 {
    max-width: 10ch;
  }

  .about-copy {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    color: var(--ink-soft);
    font-size: clamp(1.08rem, 1.5vw, 1.3rem);
  }

  .about-quote {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: minmax(0, 9fr) minmax(10rem, 2fr);
    gap: var(--space-xl);
    align-items: end;
    margin-top: clamp(4rem, 8vw, 8rem);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--ink);
  }

  .about-quote p {
    max-width: 23ch;
    font-family: var(--display);
    font-size: clamp(2.2rem, 4.8vw, 5.2rem);
    font-weight: 450;
    letter-spacing: -0.05em;
    line-height: 1.02;
  }

  .about-quote cite {
    color: var(--muted);
    font-family: var(--display);
    font-size: 0.68rem;
    font-style: normal;
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }

  .contact {
    position: relative;
    min-height: 80svh;
    padding: clamp(6rem, 12vw, 11rem) var(--page) var(--space-xl);
    background: var(--blue);
    color: var(--blue-ink);
    overflow: hidden;
  }

  .contact::before {
    position: absolute;
    top: -20vw;
    right: -12vw;
    width: 58vw;
    height: 58vw;
    border: 1px solid color-mix(in oklch, var(--blue-ink) 20%, transparent);
    border-radius: 50%;
    content: "";
  }

  .contact::after {
    position: absolute;
    top: -10vw;
    right: -2vw;
    width: 38vw;
    height: 38vw;
    border: 1px solid color-mix(in oklch, var(--blue-ink) 20%, transparent);
    border-radius: 50%;
    content: "";
  }

  .contact-index {
    position: relative;
    z-index: 1;
    font-family: var(--display);
    font-size: 0.62rem;
    font-weight: 620;
    letter-spacing: 0.14em;
  }

  .contact-copy {
    position: relative;
    z-index: 1;
    margin-top: clamp(5rem, 10vw, 10rem);
  }

  .contact-copy h2 {
    max-width: 10ch;
    margin-top: var(--space-lg);
    font-size: clamp(3.5rem, 8.5vw, 10rem);
  }

  .contact-link {
    display: flex;
    max-width: 58rem;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xl);
    margin-top: clamp(3rem, 6vw, 6rem);
    padding: var(--space-lg) 0;
    border-bottom: 1px solid var(--blue-ink);
    font-family: var(--display);
    font-size: clamp(1.2rem, 2vw, 2rem);
    font-weight: 550;
  }

  .contact-link svg {
    width: 2.75rem;
    flex: 0 0 auto;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.2;
    transition: transform 300ms var(--ease-out);
  }

  .contact-link:hover svg {
    transform: translate(0.25rem, -0.25rem);
  }

  .contact-system {
    position: absolute;
    right: var(--page);
    bottom: var(--space-xl);
    left: var(--page);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    color: color-mix(in oklch, var(--blue-ink) 65%, transparent);
    font-family: var(--display);
    font-size: 0.58rem;
    font-weight: 600;
    letter-spacing: 0.12em;
  }

  .contact-system i {
    height: 1px;
    flex: 1;
    background: color-mix(in oklch, var(--blue-ink) 28%, transparent);
  }

  .site-footer {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    padding: var(--space-xl) var(--page);
    background: var(--ink);
    color: color-mix(in oklch, var(--paper) 64%, transparent);
    font-size: 0.62rem;
    font-weight: 550;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

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

  .site-footer > div {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-lg);
  }

  .site-footer a:hover {
    color: var(--paper);
  }

  .article-page {
    background: var(--paper);
  }

  .article-shell {
    padding-top: 5rem;
  }

  .article-masthead {
    min-height: min(52rem, 92svh);
    padding: clamp(4rem, 9vw, 9rem) var(--page) clamp(4rem, 7vw, 7rem);
    border-bottom: 1px solid var(--ink);
  }

  .article-back {
    display: inline-flex;
    gap: var(--space-sm);
    align-items: center;
    color: var(--ink-soft);
    font-family: var(--display);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.05em;
  }

  .article-back:hover {
    color: var(--blue);
  }

  .article-reference {
    display: flex;
    justify-content: space-between;
    margin-top: clamp(4rem, 9vw, 9rem);
    color: var(--muted);
    font-family: var(--display);
    font-size: 0.64rem;
    font-weight: 600;
    letter-spacing: 0.13em;
    text-transform: uppercase;
  }

  .article-masthead .overline {
    margin-top: clamp(2rem, 4vw, 4rem);
  }

  .article-masthead h1 {
    max-width: 8.5ch;
    margin-top: var(--space-lg);
    font-size: clamp(4rem, 10vw, 11rem);
    line-height: 0.88;
  }

  .article-intro {
    max-width: 47rem;
    margin-top: clamp(2rem, 4vw, 4rem);
    color: var(--ink-soft);
    font-size: clamp(1.25rem, 2.1vw, 1.8rem);
    line-height: 1.42;
  }

  .article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md) var(--space-xl);
    margin-top: clamp(3rem, 6vw, 6rem);
    color: var(--muted);
    font-family: var(--display);
    font-size: 0.66rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }

  .article-meta span + span::before {
    margin-right: var(--space-xl);
    color: var(--blue);
    content: "●";
  }

  .article-body {
    display: grid;
    grid-template-columns: minmax(11rem, 3fr) minmax(0, 7fr);
    gap: clamp(3rem, 10vw, 14rem);
    max-width: 92rem;
    margin: 0 auto;
    padding: clamp(5rem, 10vw, 10rem) var(--page);
  }

  .article-rail {
    position: sticky;
    top: 8rem;
    align-self: start;
    padding-top: var(--space-md);
    border-top: 1px solid var(--ink);
  }

  .article-rail > span {
    color: var(--muted);
    font-family: var(--display);
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }

  .article-rail p {
    margin-top: var(--space-md);
    color: var(--ink-soft);
    font-family: var(--display);
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.25;
    letter-spacing: -0.03em;
  }

  .article-copy {
    max-width: 46rem;
  }

  .article-copy p {
    max-width: 40rem;
    margin-bottom: var(--space-lg);
    color: var(--ink-soft);
    font-size: clamp(1.14rem, 1.55vw, 1.35rem);
    line-height: 1.58;
  }

  .article-copy .article-lede {
    margin-bottom: clamp(4rem, 8vw, 8rem);
    color: var(--ink);
    font-size: clamp(1.55rem, 2.4vw, 2.25rem);
    line-height: 1.35;
  }

  .article-copy h2 {
    max-width: 12ch;
    margin: clamp(4rem, 8vw, 8rem) 0 var(--space-xl);
    font-size: clamp(2.35rem, 4.3vw, 4.5rem);
    line-height: 0.98;
  }

  .article-pullquote {
    margin: clamp(4rem, 8vw, 8rem) 0;
    padding: clamp(2rem, 5vw, 5rem) 0;
    border-top: 1px solid var(--ink);
    border-bottom: 1px solid var(--ink);
  }

  .article-pullquote p {
    max-width: 22ch;
    margin: 0;
    color: var(--blue);
    font-family: var(--display);
    font-size: clamp(2rem, 4vw, 4.25rem);
    font-weight: 470;
    letter-spacing: -0.05em;
    line-height: 1.02;
  }

  .article-model {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin: clamp(4rem, 8vw, 8rem) 0;
    border-top: 1px solid var(--ink);
    border-left: 1px solid var(--ink);
  }

  .article-model > div {
    display: flex;
    min-height: 18rem;
    flex-direction: column;
    padding: var(--space-lg);
    border-right: 1px solid var(--ink);
    border-bottom: 1px solid var(--ink);
  }

  .article-model span {
    color: var(--muted);
    font-family: var(--display);
    font-size: 0.65rem;
    font-weight: 600;
  }

  .article-model h3 {
    margin-top: auto;
    font-size: clamp(1.4rem, 2vw, 1.9rem);
  }

  .article-model p {
    margin: var(--space-md) 0 0;
    font-size: 1rem;
    line-height: 1.45;
  }

  .article-model .article-model-active {
    background: var(--blue);
    color: var(--blue-ink);
  }

  .article-model .article-model-active span,
  .article-model .article-model-active p {
    color: color-mix(in oklch, var(--blue-ink) 76%, transparent);
  }

  .article-checklist {
    margin: clamp(2rem, 4vw, 4rem) 0 0;
    padding: 0;
    border-top: 1px solid var(--ink);
    list-style: none;
  }

  .article-checklist li {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(13rem, 0.8fr);
    gap: var(--space-xl);
    padding: var(--space-lg) 0;
    border-bottom: 1px solid var(--rule);
  }

  .article-checklist strong {
    font-family: var(--display);
    font-size: 1rem;
    font-weight: 560;
    letter-spacing: -0.02em;
  }

  .article-checklist span {
    color: var(--ink-soft);
  }

  .article-cta {
    padding: clamp(5rem, 11vw, 11rem) var(--page);
    background: var(--ink);
    color: var(--paper);
  }

  .article-cta h2 {
    max-width: 13ch;
    margin: var(--space-lg) 0 clamp(3rem, 6vw, 6rem);
  }

  .article-cta .button-inverse {
    border-color: var(--paper);
  }
}

@layer utilities {
  .js .reveal {
    opacity: 0;
    transform: translateY(1.1rem);
    transition:
      opacity 700ms var(--ease-out),
      transform 700ms var(--ease-out);
  }

  .js .reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  .js .hero .reveal:nth-child(2) {
    transition-delay: 80ms;
  }

  .js .hero .reveal:nth-child(3) {
    transition-delay: 160ms;
  }

  @media (max-width: 64rem) {
    .hero {
      min-height: auto;
      grid-template-columns: minmax(0, 6fr) minmax(16rem, 4fr);
      padding-top: 8rem;
    }

    h1 {
      font-size: clamp(3.4rem, 8.5vw, 6.5rem);
    }

    .primary-nav {
      gap: 1.2rem;
    }

    .primary-nav > a:nth-child(-n + 2) {
      display: none;
    }

    .principle-heading {
      grid-template-columns: 1fr 3fr;
    }

    .principle-heading .principle-lede {
      grid-column: 2;
    }

    .work-entry-body {
      grid-template-columns: 1fr 1fr;
      gap: var(--space-3xl);
    }

    .notes-list {
      grid-template-columns: 1.4fr 1fr;
    }

    .note:last-child {
      grid-column: 1 / -1;
      min-height: 20rem;
      border-top: 1px solid var(--rule);
    }
  }

  @media (max-width: 47.99rem) {
    body::before {
      background-size: 2rem 2rem;
    }

    .site-header {
      min-height: 4.5rem;
    }

    .menu-toggle {
      display: flex;
    }

    .primary-nav {
      position: absolute;
      top: 100%;
      right: 0;
      left: 0;
      display: grid;
      max-height: 0;
      gap: 0;
      padding: 0 var(--page);
      background: var(--paper);
      overflow: hidden;
      opacity: 0;
      visibility: hidden;
      transition:
        max-height 420ms var(--ease-out),
        opacity 220ms ease,
        visibility 220ms ease;
    }

    .primary-nav.is-open {
      max-height: 30rem;
      padding-bottom: var(--space-lg);
      opacity: 1;
      visibility: visible;
    }

    .primary-nav > a,
    .primary-nav > a:nth-child(-n + 2) {
      display: flex;
      align-items: center;
      min-height: 3.5rem;
      border-bottom: 1px solid var(--rule);
    }

    .primary-nav .nav-cta {
      min-height: 3.25rem;
      justify-content: space-between;
      margin-top: var(--space-md);
      border: 1px solid var(--ink);
    }

    .hero {
      display: flex;
      flex-direction: column;
      gap: var(--space-2xl);
      padding-top: 7.5rem;
    }

    .hero-grid::before {
      left: 72%;
    }

    .hero-copy {
      padding: 0;
    }

    .eyebrow {
      margin-bottom: var(--space-lg);
    }

    h1 {
      max-width: 9.5ch;
      font-size: clamp(3.25rem, 15vw, 5.2rem);
    }

    .hero-intro {
      margin-top: var(--space-xl);
      font-size: 1.1rem;
    }

    .hero-actions {
      align-items: flex-start;
      flex-direction: column;
    }

    .portrait {
      width: min(88%, 24rem);
      align-self: flex-end;
    }

    .hero-proof {
      grid-template-columns: 1fr 1fr;
      width: 100%;
    }

    .hero-proof > div {
      min-height: 4.8rem;
      padding: var(--space-md);
      border-bottom: 1px solid var(--rule);
    }

    .hero-proof > div:first-child {
      padding-left: var(--space-md);
    }

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

    .principle-heading,
    .work-intro,
    .work-entry-body,
    .experience-layout,
    .notes-heading,
    .about-layout,
    .about-quote {
      grid-template-columns: 1fr;
    }

    .principle-heading .principle-lede {
      grid-column: auto;
    }

    .principle-heading h2,
    .work-intro h2,
    .notes-heading h2,
    .about-layout h2 {
      max-width: 11ch;
    }

    .model-step {
      grid-template-columns: 2rem 1fr;
      gap: var(--space-md);
    }

    .step-status {
      grid-column: 2;
      justify-self: start;
    }

    .work-entry-meta {
      align-items: flex-start;
      flex-direction: column;
      gap: var(--space-xs);
    }

    .work-entry-body > h3 {
      font-size: clamp(2.5rem, 12vw, 4.2rem);
    }

    .experience-heading {
      position: static;
    }

    .experience-item {
      grid-template-columns: 1fr;
    }

    .notes-list {
      grid-template-columns: 1fr;
    }

    .note,
    .note:last-child {
      grid-column: auto;
      min-height: 24rem;
      border-right: 0;
      border-bottom: 1px solid var(--rule);
    }

    .about-quote {
      grid-column: auto;
    }

    .contact {
      min-height: 75svh;
    }

    .contact-copy h2 {
      font-size: clamp(3.3rem, 15vw, 6rem);
    }

    .contact-system {
      display: none;
    }

    .article-shell {
      padding-top: 4.5rem;
    }

    .article-masthead {
      min-height: auto;
      padding-top: 3.5rem;
      padding-bottom: 4rem;
    }

    .article-reference {
      gap: var(--space-sm);
      margin-top: 3.5rem;
    }

    .article-masthead h1 {
      font-size: clamp(3.7rem, 17vw, 5.75rem);
    }

    .article-intro {
      font-size: 1.28rem;
    }

    .article-meta {
      gap: var(--space-sm) var(--space-md);
    }

    .article-meta span + span::before {
      margin-right: var(--space-md);
    }

    .article-body {
      grid-template-columns: 1fr;
      gap: 2.75rem;
      padding-top: 4.5rem;
      padding-bottom: 4.5rem;
    }

    .article-rail {
      position: static;
      max-width: 22rem;
    }

    .article-copy h2 {
      margin-top: 4.5rem;
    }

    .article-model {
      grid-template-columns: 1fr;
      margin: 3.5rem 0;
    }

    .article-model > div {
      min-height: 13.5rem;
    }

    .article-checklist li {
      grid-template-columns: 1fr;
      gap: var(--space-sm);
    }

    .article-cta {
      padding-top: 5rem;
      padding-bottom: 5rem;
    }

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

    .site-footer > p:nth-child(2) {
      text-align: left;
    }

    .site-footer > div {
      flex-wrap: wrap;
      justify-content: flex-start;
    }
  }

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

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

    .js .reveal {
      opacity: 1;
      transform: none;
    }
  }
}