:root {
  --chalk: #f5f4f0;
  --ink: #1c2321;
  --moss: #66706b;
  --copper: #b86b4b;
  --line: #d9ddd7;
  --serif: "Instrument Serif", Georgia, serif;
  --sans: "IBM Plex Sans", Arial, sans-serif;
  --mono: "IBM Plex Mono", monospace;
  --shell: min(1180px, calc(100% - 88px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; background: var(--chalk); color: var(--ink); font-family: var(--sans); font-size: 15px; line-height: 1.55; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 2px solid var(--copper); outline-offset: 5px; }
section[id] { scroll-margin-top: 24px; }
.shell { width: var(--shell); margin-inline: auto; }
.skip-link { position: fixed; top: 10px; left: 10px; z-index: 2; padding: 8px 12px; background: var(--ink); color: var(--chalk); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }

.site-header { display: grid; grid-template-columns: 1fr 1fr 1fr; align-items: center; min-height: 88px; border-bottom: 1px solid var(--line); }
.monogram { font-size: 17px; font-weight: 600; letter-spacing: -.06em; }
.monogram-dot, .status-dot { color: var(--copper); }
.header-status, nav, .eyebrow, .work-index, .work-meta, .vertical-label, .rail-note, .site-footer { font: 11px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.header-status { justify-self: center; color: var(--moss); }
.status-dot { display: inline-block; width: 6px; height: 6px; margin-right: 8px; border-radius: 50%; background: var(--copper); vertical-align: 1px; }
nav { display: flex; justify-self: end; gap: 24px; color: var(--moss); }
nav a:hover, .site-footer a:hover { color: var(--copper); }

.hero { display: grid; grid-template-columns: 170px 1fr; min-height: 640px; padding-top: 112px; padding-bottom: 112px; }
.hero-rail { position: relative; display: flex; flex-direction: column; justify-content: space-between; padding-bottom: 10px; }
.vertical-label { writing-mode: vertical-rl; transform: rotate(180deg); color: var(--moss); }
.rail-rule { width: 1px; flex: 1; min-height: 120px; margin: 28px 0 28px 4px; background: var(--line); }
.rail-note { color: var(--moss); letter-spacing: .04em; text-transform: none; }
.hero-content { max-width: 830px; align-self: center; }
.eyebrow { margin: 0 0 30px; color: var(--copper); }
h1, h2, p { margin-top: 0; }
h1 { max-width: 900px; margin-bottom: 62px; font: 400 clamp(4.5rem, 8.7vw, 8.2rem)/.89 var(--serif); letter-spacing: -.045em; }
h1 em { color: var(--copper); font-style: italic; }
.hero-foot { display: grid; grid-template-columns: minmax(240px, 330px) auto; gap: 80px; align-items: end; }
.hero-intro { max-width: 330px; margin: 0; color: var(--moss); }
.text-link, .contact-link { border-bottom: 1px solid var(--copper); color: var(--ink); font: 12px var(--mono); letter-spacing: .03em; padding-bottom: 5px; }
.text-link span, .contact-link span { color: var(--copper); font-size: 17px; margin-left: 10px; }

.work-section, .principles-section, .contact-section { padding-top: 100px; padding-bottom: 112px; border-top: 1px solid var(--line); }
.section-heading { display: grid; grid-template-columns: 170px 1fr; margin-bottom: 42px; }
.section-aside { grid-column: 2; margin: -4px 0 0; color: var(--moss); }
.work-list { border-top: 1px solid var(--ink); }
.work-row { display: grid; grid-template-columns: 50px 1.1fr 2fr 1fr 20px; gap: 20px; align-items: center; padding: 27px 0; border-bottom: 1px solid var(--line); transition: padding-left .25s ease, color .25s ease; }
.work-row:hover { padding-left: 12px; color: var(--copper); }
.work-index, .work-meta { color: var(--moss); }
.work-main { display: flex; flex-direction: column; gap: 3px; }
.work-main strong { font: 400 31px/1 var(--serif); }
.work-main span, .work-outcome { color: var(--moss); font-size: 13px; }
.work-outcome { max-width: 330px; }
.work-meta { justify-self: end; font-size: 10px; }
.row-arrow { color: var(--copper); font-size: 21px; }

.principles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-left: 170px; }
.principles-grid article { padding-right: 35px; border-right: 1px solid var(--line); }
.principles-grid article:last-child { border: 0; }
.principle-mark { display: block; margin-bottom: 34px; color: var(--copper); font-size: 25px; }
.principles-grid h2 { max-width: 180px; margin-bottom: 15px; font: 400 29px/1.02 var(--serif); }
.principles-grid p { max-width: 220px; margin: 0; color: var(--moss); font-size: 13px; }

.contact-section { padding-bottom: 136px; }
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; margin-left: 170px; }
.contact-layout h2 { max-width: 450px; margin: 0; font: 400 clamp(3.2rem, 6vw, 5.8rem)/.9 var(--serif); letter-spacing: -.04em; }
.contact-layout > div { align-self: end; max-width: 310px; color: var(--moss); }
.contact-link { display: inline-block; margin-top: 28px; color: var(--ink); }
.site-footer { display: flex; justify-content: space-between; padding: 24px 0 34px; color: var(--moss); border-top: 1px solid var(--line); letter-spacing: .04em; }
.site-footer div { display: flex; gap: 25px; }
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 760px) {
  :root { --shell: min(100% - 40px, 560px); }
  .site-header { grid-template-columns: 1fr auto; min-height: 74px; gap: 20px; }
  .header-status { display: none; }
  nav { gap: 15px; font-size: 10px; }
  .hero { display: block; min-height: auto; padding-top: 86px; padding-bottom: 96px; }
  .hero-rail { display: flex; flex-direction: row; align-items: center; margin-bottom: 62px; }
  .vertical-label { writing-mode: initial; transform: none; }
  .rail-rule { width: 45px; min-height: 1px; height: 1px; margin: 0 16px; }
  .rail-note { margin-left: auto; text-align: right; }
  h1 { margin-bottom: 45px; font-size: clamp(4rem, 17vw, 6.2rem); }
  .hero-foot, .contact-layout { grid-template-columns: 1fr; gap: 32px; }
  .section-heading { display: block; margin-bottom: 32px; }
  .section-aside { margin-top: 22px; }
  .work-row { grid-template-columns: 32px minmax(0, 1fr) 20px; gap: 12px; min-height: 112px; padding: 24px 0; }
  .work-outcome { grid-column: 2 / 3; max-width: 320px; }
  .work-meta { grid-column: 2; justify-self: start; margin-top: 5px; }
  .principles-grid, .contact-layout { margin-left: 0; }
  .principles-grid { grid-template-columns: 1fr; gap: 0; }
  .principles-grid article { padding: 24px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .principle-mark { margin-bottom: 20px; }
  .principles-grid h2 { max-width: none; }
  .contact-layout h2 { font-size: clamp(3.6rem, 15vw, 5rem); }
  .site-footer { display: block; line-height: 2.4; }
  .site-footer div { justify-content: space-between; gap: 10px; }
}

@media (max-width: 420px) {
  :root { --shell: calc(100% - 32px); }
  .site-header { min-height: 68px; }
  nav { gap: 10px; font-size: 9px; letter-spacing: .04em; }
  .hero { padding-top: 68px; padding-bottom: 78px; }
  .hero-rail { align-items: flex-start; margin-bottom: 50px; }
  .vertical-label { max-width: 125px; font-size: 9px; }
  .rail-rule { width: 28px; margin: 7px 10px 0; }
  .rail-note { font-size: 9px; }
  h1 { font-size: clamp(3.55rem, 17vw, 4.5rem); }
  .work-row { grid-template-columns: 24px minmax(0, 1fr) 16px; gap: 8px; }
  .work-main strong { font-size: 27px; }
  .work-main span, .work-outcome { font-size: 12px; }
  .site-footer div { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}