:root {
  color-scheme: light;
  --paper: #fff;
  --ink: #111;
  --blue: #002fa7;
  --gray: #e5e5e5;
  --muted: #717171;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-optical-sizing: auto;
  font-weight: 300;
  background: var(--paper);
  color: var(--ink);
}

* { box-sizing: border-box; }
html { min-width: 320px; scroll-behavior: smooth; }
body { margin: 0; font-size: 17px; line-height: 1.65; }
button, a { color: inherit; font: inherit; }
button { cursor: pointer; }
a { text-decoration: none; }
button:focus-visible, a:focus-visible, [tabindex="-1"]:focus-visible { outline: 1px solid var(--blue); outline-offset: 4px; }
.blue { color: var(--blue) !important; }
.top-rule { position: fixed; inset: 0 0 auto; z-index: 10; height: 2px; background: var(--gray); }
.top-rule span { display: block; width: 20%; height: 100%; background: var(--blue); transition: width .5s cubic-bezier(.22,.61,.24,1); }
.skip-link { position: fixed; z-index: 20; top: 12px; left: 12px; padding: 8px 12px; background: var(--blue); color: white; transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.site-header { position: sticky; z-index: 8; top: 0; border-bottom: 1px solid var(--gray); background: rgba(255,255,255,.94); backdrop-filter: blur(12px); }
.header-inner { width: min(100%, 1440px); min-height: 72px; margin: auto; padding: 12px 40px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 30px; }
.brand { display: inline-flex; gap: 12px; align-items: center; padding: 0; border: 0; background: transparent; text-align: left; font-size: 14px; font-weight: 450; letter-spacing: .04em; white-space: nowrap; }
.brand-mark { width: 26px; height: 26px; fill: none; stroke: var(--ink); stroke-width: .9; }
.brand-mark .blue-fill { fill: var(--blue); stroke: none; }
.section-nav { display: flex; justify-content: center; align-items: stretch; gap: 8px; align-self: stretch; overflow-x: auto; scrollbar-width: thin; }
.nav-tab { position: relative; flex: 0 0 auto; display: inline-flex; gap: 9px; align-items: center; padding: 8px 11px; border: 0; background: transparent; color: #777; font-size: 14px; font-weight: 350; white-space: nowrap; transition: color .2s; }
.nav-tab::after { position: absolute; right: 11px; bottom: -1px; left: 11px; height: 1px; background: var(--blue); content: ""; transform: scaleX(0); transform-origin: left; transition: transform .28s; }
.nav-tab[aria-selected="true"], .nav-tab:hover { color: var(--blue); }
.nav-tab[aria-selected="true"]::after { transform: scaleX(1); }
.nav-no, .eyebrow, .service-no, .drawing-label, .small-note { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
.nav-no { color: #aaa; font-size: 10px; letter-spacing: .12em; }
.nav-tab[aria-selected="true"] .nav-no { color: var(--blue); }
.header-email { justify-self: end; font-size: 12px; white-space: nowrap; }
.header-email:hover, .site-footer a:hover { color: var(--blue); }
.page-shell { width: min(100%, 1440px); margin: auto; padding: 48px 40px 0; }
.page-panel { min-height: 42vh; animation: page-in .48s cubic-bezier(.65,0,.35,1) both; }
.page-panel.leaving-forward { animation: page-out-forward .24s ease both; }
.page-panel.leaving-back { animation: page-out-back .24s ease both; }
@keyframes page-in { from { opacity: 0; transform: translateX(34px); } to { opacity: 1; transform: translateX(0); } }
@keyframes page-out-forward { to { opacity: 0; transform: translateX(-24px); } }
@keyframes page-out-back { to { opacity: 0; transform: translateX(24px); } }
.hero { min-height: 610px; align-items: center; }
.spread { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(42px, 7vw, 100px); align-items: center; }
.hero-copy { padding: 44px 0 58px; }
.eyebrow { margin: 0 0 22px; color: var(--muted); font-size: 10px; font-weight: 400; letter-spacing: .16em; line-height: 1.5; text-transform: uppercase; }
.eyebrow span { padding: 0 5px; color: #aaa; }
h1, h2, h3, p, figure { margin-top: 0; }
h1, h2, h3 { font-weight: 250; letter-spacing: -.055em; }
h1 { margin-bottom: 0; font-size: clamp(3rem, 6.35vw, 5.7rem); line-height: 1.03; }
h2 { margin: 0; font-size: clamp(2.7rem, 5.2vw, 4.8rem); line-height: 1.08; }
h3 { margin: 8px 0 12px; font-size: 29px; line-height: 1.2; }
.lede { max-width: 560px; margin: 30px 0 0; color: #666; font-size: 17px; line-height: 1.75; }
.link-stack { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; margin-top: 34px; }
.text-link { display: inline-flex; align-items: center; gap: 24px; padding: 4px 0; border: 0; background: transparent; font-size: 14px; text-align: left; }
.text-link span { color: var(--blue); font-size: 23px; line-height: 1; transition: transform .25s; }
.text-link:hover span { transform: translateX(6px); }
.drawing { min-width: 0; margin-bottom: 0; }
.drawing svg { display: block; width: 100%; height: auto; overflow: visible; }
.drawing figcaption { display: flex; justify-content: space-between; gap: 12px; margin-top: 14px; color: #888; font-family: "SFMono-Regular", Consolas, monospace; font-size: 9px; letter-spacing: .08em; }
.drawing figcaption span { white-space: nowrap; }
.draw { fill: none; stroke: var(--ink); stroke-width: .8; vector-effect: non-scaling-stroke; stroke-dasharray: 900; stroke-dashoffset: 0; animation: draw-line 1.2s ease both; }
.draw:nth-of-type(2n) { animation-delay: .08s; }
.blue-stroke { fill: none; stroke: var(--blue); stroke-width: 1.4; vector-effect: non-scaling-stroke; }
.dashed { stroke-dasharray: 3 5; }
.grid-line { fill: none; stroke: var(--gray); stroke-width: 1; }
.orbit { fill: none; stroke: #cfcfcf; stroke-width: .8; stroke-dasharray: 1 6; transform-box: fill-box; transform-origin: center; animation: orbit 120s linear infinite; }
.point { fill: #fff; stroke: var(--ink); stroke-width: .8; }
.ink-fill { fill: var(--ink); }
.blue-fill { fill: var(--blue); }
.muted-stroke, .map-grid { fill: none; stroke: var(--gray); stroke-width: 1; }
.drawing-label { fill: var(--ink); font-size: 9px; letter-spacing: .08em; }
.drawing-label.blue { fill: var(--blue); }
.animated-dash { stroke-dasharray: 5 7; animation: dash 12s linear infinite; }
.blue-ring { fill: none; stroke: var(--blue); stroke-width: .8; animation: pulse 2.8s ease-in-out infinite; }
@keyframes draw-line { from { stroke-dashoffset: 900; } to { stroke-dashoffset: 0; } }
@keyframes orbit { to { transform: rotate(360deg); } }
@keyframes dash { to { stroke-dashoffset: -120; } }
@keyframes pulse { 50% { opacity: .3; transform: scale(.95); transform-origin: 560px 133px; } }
.premise { grid-template-columns: minmax(140px, 3fr) minmax(0, 8fr); gap: 36px; margin-top: 100px; padding: 45px 0 0; border-top: 1px solid var(--gray); align-items: start; }
.premise .eyebrow { margin-top: 5px; }
.statement { margin: 0; font-size: clamp(1.6rem, 3.15vw, 2.55rem); font-weight: 250; letter-spacing: -.035em; line-height: 1.36; }
.contents { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); margin-top: 100px; padding-bottom: 48px; }
.contents-list { grid-column: 2; grid-row: 1; }
.layers-drawing { grid-column: 1; grid-row: 1; }
.index-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--gray); }
.index-list li { border-bottom: 1px solid var(--gray); }
.index-list button { display: flex; width: 100%; align-items: baseline; gap: 22px; padding: 16px 0; border: 0; background: transparent; font-size: 25px; font-weight: 250; letter-spacing: -.03em; text-align: left; }
.index-list button:hover { color: var(--blue); }
.index-list button span { color: var(--blue); font-family: monospace; font-size: 11px; letter-spacing: .08em; }
.small-note { margin: 18px 0 0; color: #888; font-size: 9px; }
.page-heading { display: grid; grid-template-columns: 2fr 9fr; gap: 30px; padding: 24px 0 75px; }
.page-heading > .eyebrow { padding-top: 9px; color: var(--blue); }
.page-heading .lede { margin-top: 27px; }
.section-spread { margin-top: 34px; }
.body-large { max-width: 540px; margin: 20px 0 0; color: #555; font-size: 19px; line-height: 1.75; }
.section-spread .text-link { margin-top: 22px; }
.principles { margin: 104px 0 0; }
.principle-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 34px 55px; }
.principle-grid article { grid-column: span 5; padding-top: 22px; border-top: 1px solid var(--gray); }
.principle-grid article:nth-child(2) { grid-column: 8 / span 5; margin-top: 42px; }
.principle-grid article:nth-child(3) { grid-column: 3 / span 5; margin-top: 12px; }
.principle-grid .eyebrow { margin-bottom: 12px; color: var(--blue); }
.principle-grid p:not(.eyebrow), .method-grid article > p:last-child { max-width: 390px; margin: 0; color: #666; line-height: 1.7; }
.services-spread { grid-template-columns: minmax(0, 7fr) minmax(260px, 4fr); align-items: start; }
.service-list { border-top: 1px solid var(--ink); }
.service-list details { border-bottom: 1px solid var(--gray); }
.service-list summary { display: grid; grid-template-columns: 40px 1fr 18px; gap: 12px; align-items: center; padding: 21px 0; cursor: pointer; list-style: none; font-size: clamp(1.2rem, 2.2vw, 1.72rem); font-weight: 250; letter-spacing: -.035em; transition: color .2s; }
.service-list summary::-webkit-details-marker { display: none; }
.service-list details[open] summary { color: var(--blue); }
.service-no { color: #888; font-size: 10px; letter-spacing: .1em; }
.service-list details[open] .service-no { color: var(--blue); }
.plus { position: relative; width: 18px; height: 18px; }
.plus::before, .plus::after { position: absolute; top: 8px; left: 1px; width: 16px; height: 1px; background: currentColor; content: ""; transition: transform .25s; }
.plus::after { transform: rotate(90deg); }
.service-list details[open] .plus::after { transform: rotate(0); }
.service-detail { display: grid; grid-template-columns: 42px minmax(0, 1fr); gap: 20px; align-items: start; padding: 0 32px 24px 52px; color: #666; font-size: 15px; line-height: 1.7; animation: detail-in .25s ease both; }
.service-detail p { margin: 0; }
.service-detail svg { width: 42px; fill: none; stroke: var(--ink); stroke-width: .8; }
.graph-drawing { position: sticky; top: 130px; margin-top: 44px; }
.closing-line { grid-template-columns: 6fr 4fr; margin: 96px 0 0; padding: 42px 0 10px; border-top: 1px solid var(--gray); }
.closing-line .statement { max-width: 680px; }
.closing-line .link-stack { margin: 0; }
.method-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--gray); border: 1px solid var(--gray); }
.method-grid article { min-height: 315px; padding: 26px 24px; background: #fff; }
.method-grid svg { display: block; width: 112px; height: 56px; margin-bottom: 32px; }
.method-grid .eyebrow { margin-bottom: 0; }
.method-grid h3 { margin-top: 8px; }
.method-grid article > p:last-child { font-size: 15px; }
.contact-heading { padding-bottom: 64px; }
.contact-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(245px, 4fr); gap: 8%; align-items: start; }
.contact-email { display: inline-block; color: var(--ink); font-size: clamp(2rem, 4.7vw, 4.1rem); font-weight: 250; letter-spacing: -.055em; line-height: 1.2; overflow-wrap: anywhere; }
.contact-email:hover { color: var(--blue); }
.contact-copy .body-large { max-width: 470px; margin-top: 22px; font-size: 17px; }
.email-button { display: inline-flex; gap: 27px; align-items: center; margin-top: 30px; padding: 13px 20px; background: var(--blue); color: #fff; font-family: monospace; font-size: 12px; transition: background .2s; }
.email-button:hover { background: var(--ink); }
.email-button span { font-family: sans-serif; font-size: 20px; transition: transform .2s; }
.email-button:hover span { transform: translateX(4px); }
.address { display: flex; flex-direction: column; align-items: flex-start; margin: 18px 0 0; color: #666; font-size: 15px; font-style: normal; line-height: 1.8; }
.address .eyebrow { margin-bottom: 18px; }
.address strong { margin-bottom: 7px; color: var(--ink); font-weight: 450; }
.map-drawing { margin-top: 80px; }
.page-pagination { display: flex; justify-content: space-between; gap: 20px; margin: 92px 0 0; padding: 24px 0 30px; border-top: 1px solid var(--ink); }
.pagination-link { display: flex; flex-direction: column; align-items: flex-start; padding: 0; border: 0; background: transparent; text-align: left; }
.pagination-link:disabled { visibility: hidden; }
.pagination-link .eyebrow { margin: 0 0 3px; }
.pagination-title { font-size: 20px; font-weight: 250; }
.pagination-link:hover .pagination-title { color: var(--blue); }
.pagination-next { align-items: flex-end; text-align: right; }
.site-footer { display: grid; grid-template-columns: 5fr 3fr 4fr; gap: 20px; align-items: start; padding: 30px max(40px, calc((100% - 1360px)/2)) 34px; border-top: 1px solid var(--gray); color: #666; font-size: 12px; }
.site-footer > div { display: flex; flex-direction: column; gap: 3px; }
.site-footer strong { color: var(--ink); font-weight: 450; }
.site-footer > p { margin: 0; text-align: right; }
.site-footer a { justify-self: start; }
[hidden] { display: none !important; }
@keyframes detail-in { from { opacity: 0; transform: translateY(-5px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 900px) {
  .header-inner { grid-template-columns: 1fr auto; gap: 6px 14px; padding: 10px 22px 0; }
  .brand { min-height: 38px; }
  .header-email { grid-column: 2; grid-row: 1; }
  .section-nav { grid-column: 1 / -1; grid-row: 2; justify-content: flex-start; margin: 0 -4px; }
  .nav-tab { padding: 9px 10px 12px; }
  .page-shell { padding: 35px 24px 0; }
  .hero { min-height: auto; }
  .spread { gap: 40px; }
  .page-heading { grid-template-columns: 1fr; gap: 12px; padding: 20px 0 54px; }
  .page-heading > .eyebrow { margin: 0; }
  .method-grid article { padding: 22px 16px; }
  .method-grid h3 { font-size: 25px; }
  .site-footer { padding-right: 24px; padding-left: 24px; }
}
@media (max-width: 620px) {
  body { font-size: 16px; }
  .header-inner { padding-right: 18px; padding-left: 18px; }
  .header-email { font-size: 11px; }
  .section-nav { gap: 0; }
  .nav-tab { gap: 6px; padding-right: 9px; padding-left: 9px; font-size: 13px; }
  .page-shell { padding: 28px 20px 0; }
  .hero { display: flex; flex-direction: column; align-items: stretch; gap: 34px; }
  .hero-copy { padding: 26px 0 0; }
  h1 { font-size: clamp(3rem, 12.2vw, 4.4rem); }
  h2 { font-size: clamp(2.45rem, 10vw, 3.7rem); }
  .lede { margin-top: 23px; font-size: 16px; }
  .hero .drawing { width: 100%; }
  .premise { grid-template-columns: 1fr; gap: 12px; margin-top: 64px; padding-top: 30px; }
  .statement { font-size: 1.7rem; }
  .contents { display: flex; flex-direction: column; gap: 34px; margin-top: 64px; }
  .contents-list { order: 0; width: 100%; }
  .layers-drawing { order: 1; width: 100%; }
  .index-list button { font-size: 23px; }
  .page-heading { padding-bottom: 42px; }
  .section-spread { display: flex; flex-direction: column; align-items: stretch; gap: 34px; margin-top: 16px; }
  .body-large { font-size: 17px; }
  .principles { margin-top: 68px; }
  .principle-grid { display: flex; flex-direction: column; gap: 0; }
  .principle-grid article, .principle-grid article:nth-child(2), .principle-grid article:nth-child(3) { margin: 0; padding: 22px 0; }
  .services-spread { display: flex; flex-direction: column; align-items: stretch; gap: 30px; }
  .service-list summary { grid-template-columns: 30px 1fr 18px; gap: 8px; padding: 18px 0; font-size: 1.19rem; }
  .service-detail { grid-template-columns: 34px 1fr; gap: 15px; padding: 0 10px 22px 38px; font-size: 14px; }
  .service-detail svg { width: 34px; }
  .graph-drawing { position: static; margin-top: 8px; }
  .closing-line { display: flex; flex-direction: column; gap: 16px; margin-top: 64px; padding-top: 30px; }
  .method-grid { grid-template-columns: 1fr 1fr; }
  .method-grid article { min-height: 280px; padding: 19px 14px; }
  .method-grid svg { width: 90px; margin-bottom: 20px; }
  .method-grid h3 { font-size: 25px; }
  .method-grid article > p:last-child { font-size: 14px; }
  .contact-heading { padding-bottom: 35px; }
  .contact-grid { grid-template-columns: 1fr; gap: 44px; }
  .contact-email { font-size: clamp(1.95rem, 9vw, 3rem); }
  .address { margin-top: 0; }
  .map-drawing { margin-top: 52px; }
  .drawing figcaption { font-size: 8px; }
  .page-pagination { margin-top: 62px; }
  .site-footer { grid-template-columns: 1fr; gap: 15px; padding: 24px 20px 28px; }
  .site-footer > p { text-align: left; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}