:root {
  --paper: #ffffff;
  --ink: #0b0b0c;
  --muted: #4e5055;
  --line: #d9dade;
  --line-strong: #c5c7cc;
  --accent: #0648ff;
  --display: "Iowan Old Style", "Baskerville", "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  --shell: min(91vw, 1440px);
  --header-height: 6.5rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  scroll-behavior: smooth;
  scrollbar-color: var(--line-strong) var(--paper);
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}

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

::selection {
  background: var(--accent);
  color: var(--paper);
}

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

:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 72%, white);
  outline-offset: 5px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 1rem;
  left: 1rem;
  padding: 0.7rem 1rem;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-180%);
}

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

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  right: 0;
  left: 0;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.header-inner {
  height: var(--header-height);
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  font-family: var(--display);
  font-size: clamp(1.65rem, 2.1vw, 2.25rem);
  line-height: 1;
  letter-spacing: -0.035em;
}

.site-nav {
  display: flex;
  align-items: stretch;
  gap: clamp(2.2rem, 4vw, 4.75rem);
}

.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  font-size: 0.98rem;
  letter-spacing: -0.012em;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 3px;
  content: "";
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 280ms var(--ease);
}

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

.menu-button {
  display: none;
  border: 0;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font: 600 0.84rem/1 var(--sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero {
  min-height: calc(100svh - 6rem);
  padding-top: var(--header-height);
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  position: relative;
  min-height: calc(100svh - var(--header-height) - 6rem);
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(20rem, 0.8fr);
  align-items: center;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 62rem;
  padding: clamp(5rem, 9vh, 8.5rem) 3rem clamp(6rem, 12vh, 10rem) 0;
}

.hero h1 {
  max-width: 15ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(4.1rem, 6.2vw, 7.65rem);
  font-weight: 400;
  letter-spacing: -0.056em;
  line-height: 0.94;
}

.hero-copy > p {
  max-width: 28rem;
  margin: clamp(2rem, 4.5vh, 3.6rem) 0 0;
  font-size: clamp(1.15rem, 1.45vw, 1.45rem);
  line-height: 1.48;
  letter-spacing: -0.025em;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: clamp(1.75rem, 3.4vw, 3.5rem);
  margin-top: clamp(2rem, 4vh, 3.2rem);
}

.button {
  display: inline-flex;
  min-height: 4.25rem;
  align-items: center;
  justify-content: center;
  gap: 2.4rem;
  padding: 1rem 1.5rem;
  font-size: 1rem;
  letter-spacing: -0.018em;
  transition: color 220ms ease, background 220ms ease, transform 220ms var(--ease);
}

.button-primary {
  min-width: 17rem;
  background: var(--accent);
  color: white;
}

.button-primary:hover {
  background: var(--ink);
  transform: translateY(-2px);
}

.button svg,
.row-arrow {
  width: 1.6rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: square;
  stroke-linejoin: miter;
  stroke-width: 1.35;
}

.text-link {
  padding-block: 0.75rem 0.45rem;
  border-bottom: 1px solid var(--accent);
  color: var(--accent);
  font-size: 1rem;
  transition: color 200ms ease, border-color 200ms ease;
}

.text-link:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.hero-drawing {
  position: absolute;
  z-index: 1;
  top: 0;
  right: calc((100vw - var(--shell)) / -2);
  bottom: 0;
  left: 55%;
  overflow: hidden;
  border-left: 1px solid var(--line);
}

.hero-drawing svg {
  width: 100%;
  height: 100%;
}

.drawing-contours,
.drawing-geometry,
.drawing-marks {
  fill: none;
  stroke: var(--line);
  stroke-width: 1;
}

.drawing-geometry {
  stroke: var(--line-strong);
}

.drawing-marks {
  stroke: #a8abb1;
}

.drawing-accent {
  fill: var(--accent);
}

.scroll-cue {
  position: absolute;
  z-index: 3;
  bottom: 2rem;
  left: 50%;
  width: 2.75rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  transform: translateX(-50%);
}

.scroll-cue svg {
  width: 2rem;
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.4;
}

.section {
  position: relative;
  padding: clamp(5.5rem, 10vw, 10rem) 0;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: var(--header-height);
}

.work-section {
  padding-top: 3rem;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  margin-bottom: clamp(3.5rem, 6vw, 6rem);
  font-size: 0.8rem;
  font-weight: 650;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.section-label > span:first-child {
  color: var(--accent);
}

.section-label h2 {
  margin: 0;
  font: inherit;
}

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

.work-item {
  position: relative;
  display: grid;
  grid-template-columns: clamp(9rem, 19vw, 20rem) minmax(0, 1fr) auto;
  align-items: center;
  min-height: clamp(13rem, 19vw, 19rem);
  border-bottom: 1px solid var(--line);
  transition: color 250ms ease;
}

.work-item-link {
  cursor: pointer;
}

.work-item:last-child {
  border-bottom: 0;
}

.work-item::before {
  position: absolute;
  inset: 0 calc((100vw - var(--shell)) / -2);
  z-index: -1;
  content: "";
  background: var(--ink);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 360ms var(--ease);
}

.work-item:hover {
  color: var(--paper);
}

.work-item:hover::before {
  transform: scaleY(1);
}

.work-number {
  align-self: stretch;
  display: flex;
  align-items: center;
  border-right: 1px solid var(--line);
  font-family: var(--display);
  font-size: clamp(7rem, 12.5vw, 12.5rem);
  font-weight: 400;
  line-height: 0.75;
  letter-spacing: -0.075em;
}

.work-copy {
  padding: 2.5rem clamp(2rem, 5vw, 5.5rem);
}

.work-copy h3 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.4rem, 4.2vw, 4.4rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.045em;
}

.work-copy p {
  max-width: 38rem;
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.2vw, 1.2rem);
  line-height: 1.55;
  transition: color 250ms ease;
}

.work-item:hover .work-copy p {
  color: #dfe0e4;
}

.row-arrow {
  width: 2.5rem;
  margin-right: 1rem;
  color: var(--accent);
  transition: transform 280ms var(--ease);
}

.work-item:hover .row-arrow {
  transform: translateX(0.65rem);
}

.experience-section {
  min-height: 57rem;
}

.contour-field {
  position: absolute;
  right: -6rem;
  bottom: -14rem;
  width: min(48vw, 52rem);
  aspect-ratio: 1;
  opacity: 0.75;
  background: repeating-radial-gradient(
    ellipse at 100% 100%,
    transparent 0 26px,
    var(--line) 27px 28px,
    transparent 29px 52px
  );
  transform: rotate(-8deg);
}

.capability-list {
  position: relative;
  z-index: 1;
  margin: 0;
  border-top: 1px solid var(--line);
}

.capability-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(20rem, 0.95fr);
  gap: clamp(2.5rem, 7vw, 8rem);
  align-items: center;
  min-height: 10rem;
  border-bottom: 1px solid var(--line);
}

.capability-row dt {
  display: flex;
  align-items: center;
  gap: clamp(2rem, 5vw, 5.2rem);
  font-family: var(--display);
  font-size: clamp(2.25rem, 3.8vw, 4rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.capability-title {
  display: grid;
  gap: 0.65rem;
}

.capability-title strong {
  font: inherit;
  font-weight: 400;
}

.capability-title small {
  color: var(--muted);
  font-family: var(--sans);
  font-size: clamp(0.7rem, 0.75vw, 0.82rem);
  font-weight: 650;
  letter-spacing: 0.08em;
  line-height: 1.35;
  text-transform: uppercase;
}

.capability-row dt > span[aria-hidden="true"] {
  color: var(--accent);
  font-family: var(--sans);
  font-size: 3.3rem;
  font-weight: 200;
}

.capability-row dd {
  max-width: 38rem;
  margin: 0;
  font-size: clamp(1rem, 1.2vw, 1.2rem);
  line-height: 1.55;
}

.approach-section {
  min-height: 48rem;
  display: flex;
  align-items: center;
}

.approach-section .shell {
  position: relative;
  z-index: 1;
}

.contour-field-approach {
  right: -3rem;
  bottom: -9rem;
  width: min(55vw, 60rem);
  opacity: 0.65;
}

.approach-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(28rem, 1.08fr);
  gap: clamp(4rem, 8vw, 10rem);
  align-items: center;
}

.approach-statement {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(3.1rem, 5vw, 5.3rem);
  line-height: 1.04;
  letter-spacing: -0.048em;
}

.principles {
  display: grid;
  gap: 2.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.principles li {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: 1.5rem;
  align-items: center;
  font-size: clamp(1rem, 1.35vw, 1.28rem);
}

.principles li::before {
  width: 2.5rem;
  height: 2px;
  content: "";
  background: var(--accent);
}

.site-footer {
  border-bottom: 6px solid var(--accent);
}

.footer-inner {
  min-height: 8rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
}

.footer-inner > :nth-child(2) {
  justify-self: end;
}

.footer-inner > a:not(.wordmark) {
  font-size: 1rem;
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(2rem);
  transition: opacity 800ms var(--ease), transform 800ms var(--ease);
}

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

@media (max-width: 900px) {
  :root {
    --shell: min(88vw, 46rem);
    --header-height: 5rem;
  }

  .menu-button {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: var(--header-height);
    right: 0;
    left: 0;
    display: grid;
    gap: 0;
    padding: 0 6vw 1.25rem;
    border-bottom: 1px solid var(--line);
    background: var(--paper);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-0.75rem);
    transition: opacity 200ms ease, transform 200ms ease;
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    min-height: 3.5rem;
    border-bottom: 1px solid var(--line);
  }

  .site-nav a::after {
    display: none;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    align-items: end;
  }

  .hero-copy {
    padding: 8rem 0 8.5rem;
  }

  .hero h1 {
    max-width: 10ch;
    font-size: clamp(3.7rem, 12vw, 6.4rem);
  }

  .hero-drawing {
    top: 18%;
    left: 58%;
    opacity: 0.52;
  }

  .work-item {
    grid-template-columns: clamp(5.5rem, 16vw, 8rem) minmax(0, 1fr);
  }

  .work-number {
    font-size: clamp(4.2rem, 13vw, 7rem);
  }

  .row-arrow {
    display: none;
  }

  .work-item-link .row-arrow {
    position: absolute;
    top: 2.1rem;
    right: 0;
    display: block;
    width: 2rem;
    margin: 0;
  }

  .capability-row {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 2.5rem 0;
  }

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

@media (max-width: 600px) {
  :root {
    --shell: min(88vw, 34rem);
  }

  .hero-copy {
    padding: 5.5rem 0 6.5rem;
  }

  .hero h1 {
    font-size: clamp(3.35rem, 15.3vw, 5rem);
    line-height: 0.96;
  }

  .hero-copy > p {
    font-size: 1.05rem;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 1.25rem;
  }

  .button-primary {
    width: 100%;
  }

  .hero-drawing {
    top: 32%;
    left: 63%;
    opacity: 0.35;
  }

  .scroll-cue {
    left: auto;
    right: -0.4rem;
    transform: none;
  }

  .section {
    padding: 5.25rem 0;
  }

  .section-label {
    gap: 0.7rem;
    margin-bottom: 3.2rem;
    font-size: 0.66rem;
  }

  .work-item {
    grid-template-columns: 1fr;
    align-content: center;
    min-height: auto;
    padding: 2.5rem 0 2.75rem;
  }

  .work-number {
    align-self: auto;
    display: block;
    border-right: 0;
    color: var(--accent);
    font-family: var(--sans);
    font-size: 0.75rem;
    font-weight: 650;
    letter-spacing: 0.18em;
    line-height: 1;
  }

  .work-copy {
    padding: 1.25rem 0 0;
  }

  .work-copy h3 {
    font-size: 2.5rem;
  }

  .work-copy p {
    margin-top: 0.9rem;
    font-size: 0.98rem;
  }

  .work-item::before {
    inset-inline: -6vw;
  }

  .experience-section {
    min-height: 0;
  }

  .capability-row dt {
    gap: 1.25rem;
    font-size: 2.3rem;
  }

  .capability-title {
    gap: 0.5rem;
  }

  .capability-row dt > span[aria-hidden="true"] {
    font-size: 2.5rem;
  }

  .approach-section {
    min-height: 0;
  }

  .approach-grid {
    gap: 3.5rem;
  }

  .approach-statement {
    font-size: 2.85rem;
  }

  .principles {
    gap: 2rem;
  }

  .principles li {
    grid-template-columns: 1.7rem minmax(0, 1fr);
    gap: 1rem;
  }

  .principles li::before {
    width: 1.7rem;
  }

  .footer-inner {
    min-height: 9rem;
    grid-template-columns: 1fr 1fr;
  }

  .footer-inner > :nth-child(2) {
    justify-self: end;
  }

}

@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 [data-reveal] {
    opacity: 1;
    transform: none;
  }
}