@font-face {
  font-family: 'Literata Local';
  src: url('fonts/Literata-Variable.ttf') format('truetype');
  font-style: normal;
  font-weight: 200 900;
  font-display: swap;
}

:root {
  --basalt: #0d1212;
  --moss: #141c1b;
  --bone: #ece7dd;
  --silver: #a8b1ad;
  --oxide: #2b3c39;
  --glass: #8db9b6;
  --ember: #d3a36c;
  --focus: #b9e3de;
  --serif: 'Literata Local', 'Literata', 'Source Serif 4', Charter, Cambria, serif;
  --sans: 'Onest', Manrope, Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --max: 90rem;
  --header: 6rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--basalt); }
body {
  margin: 0;
  color: var(--bone);
  background:
    radial-gradient(circle at 87% 9%, rgba(141, 185, 182, .06), transparent 24rem),
    var(--basalt);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}
body[data-lang="en"] .lang-ru,
body[data-lang="ru"] .lang-en { display: none !important; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
::selection { background: var(--glass); color: var(--basalt); }

.skip-link {
  position: fixed; left: 1rem; top: -4rem; z-index: 100;
  padding: .7rem 1rem; background: var(--focus); color: var(--basalt);
  transition: top .15s ease;
}
.skip-link:focus { top: 1rem; }

:focus-visible { outline: 2px solid var(--focus); outline-offset: 4px; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--header);
  display: grid;
  grid-template-columns: minmax(18rem, 1.25fr) auto minmax(12rem, 1fr);
  align-items: center;
  gap: 2rem;
  padding: 0 var(--gutter);
  border-bottom: 1px solid rgba(141, 185, 182, .18);
  background: rgba(13, 18, 18, .88);
  backdrop-filter: blur(16px);
}
.wordmark { display: inline-flex; align-items: center; gap: .95rem; width: fit-content; }
.wordmark-name {
  display: inline-flex;
  align-items: baseline;
  gap: .31em;
  font-family: var(--serif);
  font-size: clamp(1.45rem, 2.1vw, 1.8rem);
  font-variation-settings: 'opsz' 64, 'wght' 555;
  letter-spacing: .005em;
}
.prototype-tag { padding-left: .65rem; border-left: 1px solid var(--oxide); color: var(--silver); font: .58rem var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.site-nav { display: flex; gap: clamp(1rem, 2.5vw, 2.5rem); font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; }
.site-nav a, .agents-link { color: var(--silver); transition: color .15s ease; }
.site-nav a:hover, .agents-link:hover { color: var(--bone); }
.utilities { justify-self: end; display: flex; align-items: center; gap: 1.5rem; font-size: .74rem; text-transform: uppercase; letter-spacing: .12em; }
.language-switch { display: flex; align-items: center; gap: .35rem; color: var(--oxide); }
.language-switch button { padding: .2rem; border: 0; background: transparent; color: var(--silver); cursor: pointer; }
.language-switch button[aria-pressed="true"] { color: var(--bone); }
.menu-toggle { display: none; border: 1px solid var(--oxide); background: transparent; padding: .5rem .8rem; text-transform: uppercase; font-size: .72rem; letter-spacing: .12em; }

.section-shell { width: min(100%, var(--max)); margin-inline: auto; padding-inline: var(--gutter); }
.eyebrow, .mono, .section-number, .work-meta, .hero-index, .work-state, .footer-meta {
  font-family: var(--mono); font-size: .68rem; line-height: 1.3; letter-spacing: .14em; text-transform: uppercase; color: var(--silver);
}
.eyebrow::before { content: '— '; color: var(--glass); }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; }
h1 em { color: var(--glass); font-style: italic; }

.hero {
  position: relative;
  min-height: calc(100svh - var(--header));
  display: grid;
  grid-template-columns: minmax(0, 8fr) minmax(10rem, 3fr);
  gap: clamp(3rem, 8vw, 10rem);
  align-items: center;
  padding-top: clamp(4rem, 8vw, 8rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
}
.hero-copy { position: relative; z-index: 2; }
.hero h1 { margin: 1.1rem 0 2rem; max-width: 13ch; font-size: clamp(3.25rem, 6.4vw, 6.4rem); line-height: .93; letter-spacing: -.045em; }
.hero-intro { max-width: 42rem; color: var(--silver); font-size: clamp(1rem, 1.4vw, 1.18rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 2.3rem; }
.button { min-height: 3.2rem; display: inline-flex; align-items: center; justify-content: space-between; gap: 2rem; padding: .75rem 1.1rem; border: 1px solid var(--oxide); font-size: .78rem; text-transform: uppercase; letter-spacing: .11em; transition: background .18s ease, border-color .18s ease, transform .18s ease; }
.button:hover { transform: translateY(-2px); border-color: var(--glass); }
.button.primary { min-width: 13.5rem; color: var(--basalt); background: var(--glass); border-color: var(--glass); }
.button.primary:hover { background: var(--focus); }
.button.quiet { color: var(--bone); background: transparent; }

.hero-index { position: absolute; bottom: 1.4rem; left: var(--gutter); right: var(--gutter); display: flex; justify-content: space-between; padding-top: .65rem; border-top: 1px solid rgba(141,185,182,.14); }

.signal { min-height: 30rem; display: grid; grid-template-columns: minmax(0, 5fr) minmax(11rem, 1.4fr); gap: 3rem; align-items: end; padding-top: 7rem; padding-bottom: 7rem; border-top: 1px solid var(--oxide); }
.signal h2 { margin: .7rem 0 1.3rem; max-width: 24ch; font-size: clamp(2rem, 3.5vw, 4rem); line-height: 1.04; }
.signal-copy > p:last-child { max-width: 48rem; color: var(--silver); }
.text-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 1.5rem; min-width: 11rem; padding-bottom: .45rem; border-bottom: 1px solid var(--oxide); font-size: .76rem; text-transform: uppercase; letter-spacing: .1em; transition: border-color .18s ease; }
.text-link:hover { border-color: var(--glass); }
.section-link { align-self: end; justify-self: end; }

.featured { padding-top: 8rem; padding-bottom: 8rem; background: linear-gradient(180deg, transparent, rgba(20,28,27,.45), transparent); }
.section-heading { display: grid; grid-template-columns: 7fr 4fr; gap: 3rem; align-items: end; margin-bottom: 3.5rem; }
.section-heading h2 { margin: .8rem 0 0; font-size: clamp(2.8rem, 5.3vw, 6rem); line-height: .93; letter-spacing: -.04em; }
.section-intro { color: var(--silver); max-width: 33rem; }
.work-card { position: relative; display: grid; grid-template-columns: 1fr 1.15fr 1fr minmax(11rem, auto); gap: clamp(1.5rem, 4vw, 4rem); align-items: center; min-height: 28rem; padding: clamp(1.6rem, 4vw, 3.5rem); border: 1px solid var(--oxide); background: var(--moss); overflow: hidden; }
.work-meta { align-self: start; display: grid; gap: .55rem; }
.work-visual { position: relative; min-height: 19rem; }
.door-frame { position: absolute; width: 46%; height: 88%; top: 6%; left: 27%; border: 1px solid var(--glass); border-bottom-color: transparent; opacity: .7; }
.door-frame::before { content: ''; position: absolute; inset: 9%; border: 1px solid rgba(141,185,182,.25); }
.door-line { position: absolute; width: 1px; height: 94%; top: 3%; left: 50%; transform: rotate(13deg); background: linear-gradient(transparent, var(--ember), transparent); }
.work-copy h3 { margin-bottom: 1rem; font-size: clamp(2.3rem, 4vw, 4.8rem); line-height: .95; }
.work-copy p { color: var(--silver); }
.work-state { display: inline-block; margin-top: 1.2rem; color: var(--ember); }
.research { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(3rem, 7vw, 8rem); padding-top: 8rem; padding-bottom: 8rem; border-top: 1px solid var(--oxide); }
.research-lead h2 { margin-top: 1rem; font-size: clamp(2.5rem, 4.6vw, 5.3rem); line-height: .96; letter-spacing: -.035em; }
.research-list { margin: 0; padding: 0; list-style: none; counter-reset: research; }
.research-list li { counter-increment: research; display: grid; grid-template-columns: 2.5rem 1fr; padding: 1.25rem 0; border-bottom: 1px solid var(--oxide); font-family: var(--serif); font-size: clamp(1.35rem, 2vw, 2rem); }
.research-list li::before { content: '0' counter(research); margin-top: .35rem; font: .62rem var(--mono); color: var(--glass); }
.research-list small { grid-column: 2; color: var(--silver); font: .72rem var(--sans); text-transform: uppercase; letter-spacing: .08em; }

.practice-band { display: grid; grid-template-columns: 5fr 4fr 2fr; gap: 4rem; align-items: end; padding-top: 7rem; padding-bottom: 7rem; border-top: 1px solid var(--oxide); border-bottom: 1px solid var(--oxide); background: rgba(20,28,27,.48); }
.practice-band h2 { margin-top: 1rem; max-width: 15ch; font-size: clamp(2.5rem, 4.3vw, 5rem); line-height: .95; }
.practice-copy > p { color: var(--silver); }
.practice-tags { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.5rem; }
.practice-tags > span { padding: .35rem .65rem; border: 1px solid var(--oxide); border-radius: 100vmax; color: var(--glass); font: .62rem var(--mono); text-transform: uppercase; }

.identity { position: relative; display: grid; grid-template-columns: 5fr 2fr; gap: clamp(3rem, 7vw, 8rem); min-height: 40rem; align-items: center; padding-top: 8rem; padding-bottom: 8rem; }
.identity-copy h2 { margin: 1rem 0 2rem; max-width: 21ch; font-size: clamp(2.5rem, 4.5vw, 5.1rem); line-height: .98; }
.identity-copy > p:last-child { max-width: 51rem; color: var(--silver); font-size: 1.06rem; }
.identity-aside { align-self: end; display: grid; gap: 2rem; }

.agents { display: grid; grid-template-columns: 4fr 4fr 2fr; gap: 3rem; align-items: end; padding-top: 6rem; padding-bottom: 6rem; border-top: 1px solid var(--oxide); }
.agents h2 { margin-top: 1rem; font-size: clamp(2.1rem, 3.4vw, 4rem); line-height: .98; }
.agents > p { color: var(--silver); }
.site-footer { padding-top: 6rem; padding-bottom: 2rem; border-top: 1px solid var(--oxide); }
.footer-statement { max-width: 62rem; font-family: var(--serif); font-size: clamp(2rem, 3vw, 3.4rem); line-height: 1.05; letter-spacing: -.02em; }
.footer-statement p { margin-bottom: .15em; color: var(--silver); }
.footer-statement strong { font-weight: 400; color: var(--bone); }
.footer-meta { display: flex; justify-content: space-between; gap: 1rem; margin-top: 7rem; padding-top: 1rem; border-top: 1px solid var(--oxide); }

@media (max-width: 1050px) {
  .site-header { grid-template-columns: 1fr auto; }
  .js .menu-toggle { display: block; justify-self: end; }
  .site-nav { position: fixed; inset: var(--header) 0 auto; display: flex; flex-direction: column; gap: 0; padding: 1rem var(--gutter) 1.5rem; background: var(--basalt); border-bottom: 1px solid var(--oxide); }
  .js .site-nav { display: none; }
  .js .site-nav.is-open { display: flex; }
  .site-nav a { padding: .8rem 0; border-bottom: 1px solid rgba(43,60,57,.7); }
  .utilities { position: fixed; right: calc(var(--gutter) + 5.75rem); top: 1.45rem; bottom: auto; z-index: 55; padding: .25rem .4rem; background: rgba(13,18,18,.9); border: 0; backdrop-filter: blur(10px); }
  .hero { grid-template-columns: 1fr; }
  .hero-copy { max-width: 48rem; }
  .signal { grid-template-columns: 1fr 1fr; }
  .signal > .section-link { grid-column: 2; width: fit-content; }
  .work-card { grid-template-columns: 1fr 1fr; }
  .work-meta { grid-column: 1 / -1; }
  .work-link { grid-column: 2; }
  .research { grid-template-columns: 1fr 1fr; }
  .research-list { grid-column: auto; }
  .practice-band { grid-template-columns: 1fr 1fr; }
  .practice-band > .text-link { grid-column: 2; width: fit-content; }
  .identity { grid-template-columns: 1fr 1fr; }
  .identity-aside { grid-column: 2; }
  .agents { grid-template-columns: 1fr 4fr; }
  .agents > p, .agents > .section-link { grid-column: 2; }
  .agents > .section-link { width: fit-content; }
}

@media (max-width: 720px) {
  :root { --header: 4.4rem; }
  .site-header { gap: 1rem; }
  .wordmark-name { font-size: 1.12rem; }
  .agents-link { display: none; }
  .utilities { right: calc(var(--gutter) + 4.65rem); top: .9rem; padding: .2rem; }
  .hero { min-height: auto; padding-top: 5rem; padding-bottom: 7rem; }
  .hero h1 { font-size: clamp(3.25rem, 16vw, 5.2rem); }
  .hero-intro { max-width: 32rem; }
  .prototype-tag { display: none; }
  .hero-index { left: var(--gutter); right: var(--gutter); }
  .hero-index span:nth-child(2) { display: none; }
  .signal { grid-template-columns: 1fr; padding-top: 5rem; padding-bottom: 5rem; }
  .signal-copy, .signal > .section-link { grid-column: 1; }
  .section-heading { grid-template-columns: 1fr; }
  .featured { padding-top: 5rem; padding-bottom: 5rem; }
  .work-card { grid-template-columns: 1fr; }
  .work-visual { min-height: 15rem; order: 2; }
  .work-copy { order: 3; }
  .work-link { grid-column: 1; order: 4; }
  .research { grid-template-columns: 1fr; padding-top: 5rem; padding-bottom: 5rem; }
  .research-list { grid-column: 1; }
  .practice-band { grid-template-columns: 1fr; gap: 2rem; padding-top: 5rem; padding-bottom: 5rem; }
  .practice-band > .section-link { grid-column: 1; }
  .identity { grid-template-columns: 1fr; min-height: auto; padding-top: 5rem; padding-bottom: 5rem; }
  .identity-aside { grid-column: 1; }
  .agents { grid-template-columns: 1fr; padding-top: 5rem; padding-bottom: 5rem; }
  .agents > p, .agents > .section-link { grid-column: 1; }
  .section-link { justify-self: start; }
  .footer-meta { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

/* Multi-page prototype additions */
.site-nav a.active { color: var(--bone); }
.site-nav a.active::after { content: ''; display: block; width: 100%; height: 1px; margin-top: .35rem; background: var(--glass); }
.content-page { position: relative; min-height: calc(100svh - var(--header)); padding-top: clamp(5rem, 9vw, 9rem); padding-bottom: 7rem; overflow: hidden; }
.page-header { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, 3fr) minmax(10rem, 1fr); gap: clamp(2rem, 6vw, 7rem); align-items: end; padding-bottom: clamp(3rem, 6vw, 6rem); border-bottom: 1px solid var(--oxide); }
.page-header h1 { margin: 1rem 0 0; font-size: clamp(4rem, 10vw, 10rem); line-height: .85; letter-spacing: -.06em; }
.page-meta { justify-self: stretch; display: grid; gap: .55rem; padding-top: 1rem; border-top: 1px solid var(--oxide); color: var(--silver); font: .64rem var(--mono); letter-spacing: .11em; }
.page-meta strong { margin-bottom: 1.2rem; color: var(--glass); font: 500 clamp(1.1rem, 1.8vw, 1.65rem) var(--mono); letter-spacing: .04em; }
.page-prose { position: relative; z-index: 2; width: min(100%, 52rem); margin-left: clamp(0rem, 12vw, 12rem); padding-top: clamp(3rem, 6vw, 6rem); font-size: clamp(1rem, 1.2vw, 1.14rem); }
.page-prose h2 { margin: 4.5rem 0 1.25rem; padding-top: 1.2rem; border-top: 1px solid var(--oxide); font-size: clamp(2rem, 3.8vw, 3.8rem); line-height: 1; letter-spacing: -.035em; }
.page-prose h3 { margin: 3rem 0 1rem; font-size: clamp(1.45rem, 2.4vw, 2.3rem); }
.page-prose p { color: var(--silver); }
.page-prose strong { color: var(--bone); font-weight: 600; }
.page-prose em { color: var(--glass); }
.page-prose ul { margin: 1.5rem 0 2rem; padding: 0; list-style: none; }
.page-prose li { position: relative; padding: .65rem 0 .65rem 1.6rem; border-bottom: 1px solid rgba(43,60,57,.62); color: var(--silver); }
.page-prose li::before { content: '—'; position: absolute; left: 0; color: var(--glass); }
.page-prose code { padding: .1rem .35rem; color: var(--glass); background: var(--moss); font-family: var(--mono); font-size: .86em; }
.page-prose a { color: var(--glass); border-bottom: 1px solid var(--oxide); }
.page-bottom-nav { width: min(100%, 52rem); margin: 5rem 0 0 clamp(0rem, 12vw, 12rem); }
.compact-footer { padding-top: 1rem; }
.compact-footer .footer-meta { margin-top: 0; }
@media (max-width: 720px) {
  .content-page { padding-top: 4rem; padding-bottom: 5rem; }
  .page-header { grid-template-columns: minmax(0, 1fr) auto; gap: 1.25rem; }
  .page-header h1 { font-size: clamp(3.2rem, 17vw, 5.5rem); }
  .page-meta { min-width: 5.4rem; align-self: end; padding-top: .65rem; }
  .page-meta strong { margin-bottom: .65rem; font-size: .8rem; }
  .page-prose { margin-left: 0; }
  .page-prose h2 { margin-top: 3rem; }
  .page-bottom-nav { margin-left: 0; }
}
@media (max-width: 360px) {
  .page-header { grid-template-columns: 1fr; }
  .page-meta { grid-template-columns: 1fr auto auto; align-items: center; gap: .8rem; }
  .page-meta strong { margin: 0; }
}