@font-face { font-family: "Geist"; src: url("Geist.woff2") format("woff2"); font-weight: 100 900; font-display: swap }
@font-face { font-family: "Geist Mono"; src: url("GeistMono.woff2") format("woff2"); font-weight: 100 900; font-display: swap }

/* nnuma: paper and ink, gradient fields for atmosphere, dark technical panels for the system. */
:root {
  --paper: #F1F2EE; --paper-hi: #F7F7F4; --ink: #191714; --ink-2: #3A3732; --stone: #6F6B64; --line: #DEDFD8; --line-2: #CBCCC4;
  --night: #1A1916; --night-2: #232220; --night-3: #2E2D2A; --night-line: #3B3A36; --mist: #EDECE7; --mist-2: #A9A59D; --mist-3: #77746D;
  --signal: #FF5A1A; --folium: #7A4FDB;
  --font: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --wrap: 1240px; --gut: max(24px, env(safe-area-inset-left, 0px)); --gut-r: max(24px, env(safe-area-inset-right, 0px));
  --head: 72px; color-scheme: light;
}
* { box-sizing: border-box }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100% }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto } * { transition: none !important } }
body { margin: 0; background: #E4DDF0; color: var(--ink); font-family: var(--font); font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased }
img { max-width: 100%; display: block }
a { color: inherit; text-underline-offset: 3px; text-decoration-thickness: 1px }
:focus-visible { outline: 2px solid var(--folium); outline-offset: 3px; border-radius: 2px }
.wrap { max-width: var(--wrap); margin: 0 auto; padding-left: var(--gut); padding-right: var(--gut-r) }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 14px; z-index: 50 }
.skip:focus { left: 16px }

/* type */
.label { font-family: var(--mono); font-size: 12.5px; letter-spacing: .02em; color: var(--stone) }
h1, h2, h3 { margin: 0; font-weight: 500; text-wrap: balance }
.display { font-size: clamp(48px, 8.4vw, 124px); line-height: .95; letter-spacing: -.055em; font-weight: 500 }
h1.page { font-size: clamp(44px, 6.6vw, 88px); line-height: 1; letter-spacing: -.045em }
h2 { font-size: clamp(34px, 4.8vw, 62px); line-height: 1.03; letter-spacing: -.04em }
h3 { font-size: 20px; line-height: 1.3; letter-spacing: -.015em; font-weight: 500 }
p { margin: 0; text-wrap: pretty }
.lead { font-size: clamp(19px, 2vw, 22px); line-height: 1.5; color: var(--ink-2); max-width: 44ch; letter-spacing: -.01em }
.muted { color: var(--stone) }
.prose { display: grid; gap: 18px; max-width: 62ch; color: var(--ink-2) }

/* header: transparent over the hero, paper once scrolled */
.top { position: sticky; top: 0; z-index: 20; padding-top: env(safe-area-inset-top, 0px); background: transparent; transition: background .25s, border-color .25s; border-bottom: 1px solid transparent }
.top.scrolled { background: color-mix(in srgb, var(--paper) 86%, transparent); backdrop-filter: saturate(1.3) blur(14px); -webkit-backdrop-filter: saturate(1.3) blur(14px); border-bottom-color: var(--line) }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: var(--head) }
.brand { display: inline-flex; flex: none; color: var(--ink) }
.lockup { height: 28px; width: 166px; flex: none; display: block; color: currentColor; overflow: visible }
.menu { display: flex; gap: 34px; list-style: none; margin: 0; padding: 0; font-size: 15px }
.menu a { text-decoration: none; color: var(--ink-2); padding-block: 6px; border-bottom: 1px solid transparent }
.menu a:hover { color: var(--ink) }
.menu a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--ink) }
.top .contact-link { font-size: 15px; text-decoration: none; border: 1px solid var(--ink); border-radius: 999px; padding: 8px 18px }
.top .contact-link:hover { background: var(--ink); color: var(--paper) }
.burger { display: none; border: 1px solid var(--ink); background: transparent; border-radius: 999px; padding: 7px 14px; font: inherit; font-size: 14.5px; cursor: pointer; color: var(--ink) }
@media (max-width: 900px) {
  .burger { display: inline-block }
  .top nav { position: absolute; left: 0; right: 0; top: 100%; background: var(--paper); border-bottom: 1px solid var(--line); padding: 8px var(--gut-r) 20px var(--gut); display: none }
  .top nav.open { display: block }
  .menu { flex-direction: column; gap: 2px; font-size: 18px }
  .menu a { display: block; padding: 10px 0 }
  .top .contact-link { display: none }
}

/* hero: the field starts under the header */
.hero { position: relative; isolation: isolate; margin-top: calc(-1 * (var(--head) + env(safe-area-inset-top, 0px))); padding-top: calc(var(--head) + env(safe-area-inset-top, 0px)); overflow: hidden }
.hero .field { position: absolute; inset: 0; z-index: -1; background: url("field-a.jpg") 72% 30% / cover no-repeat }
.hero .field::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(241,242,238,0) 60%, var(--paper) 100%), linear-gradient(90deg, rgba(241,242,238,.6) 0%, rgba(241,242,238,0) 62%) }
.hero .wrap { padding-block: clamp(96px, 14vw, 180px) clamp(80px, 10vw, 128px); display: grid; gap: 30px }
.hero.page-hero .wrap { padding-block: clamp(88px, 11vw, 150px) clamp(64px, 8vw, 104px) }
.hero.page-hero .field { background-image: url("card-c.jpg"); background-position: center }
.hero.page-hero .field::after { background: linear-gradient(180deg, rgba(241,242,238,.15) 0%, rgba(241,242,238,0) 50%, var(--paper) 100%), linear-gradient(90deg, rgba(241,242,238,.7) 0%, rgba(241,242,238,.1) 70%) }
.hero.b .field { background-image: url("card-b.jpg") } .hero.d .field { background-image: url("card-d.jpg") } .hero.a .field { background-image: url("card-a.jpg") }

/* sections */
.sec { padding-block: clamp(80px, 10vw, 140px) }
.sec + .sec { border-top: 1px solid var(--line) }
.sec-head { display: grid; gap: 20px; margin-bottom: clamp(44px, 6vw, 76px); max-width: 820px }
.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(36px, 6vw, 100px); align-items: start }
.sticky { position: sticky; top: 104px }

/* dark technical sections */
.dark { background: var(--night); color: var(--mist) }
.dark .label { color: var(--mist-3) }
.dark .lead, .dark .prose { color: var(--mist-2) }
.dark h2 { color: var(--mist) }
.sec.dark + .sec, .sec + .sec.dark { border-top: 0 }

/* numbers */
.numbers { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--ink) }
.numbers div { padding: 24px 24px 0 0; display: grid; gap: 8px; align-content: start }
.numbers b { font-size: clamp(38px, 4.6vw, 62px); font-weight: 400; letter-spacing: -.05em; line-height: 1; font-variant-numeric: tabular-nums }
.numbers span { color: var(--stone); font-size: 15px; max-width: 24ch }
.footnote { margin-top: 26px; font-size: 12.5px; color: var(--stone); font-family: var(--mono) }

.quote { font-size: clamp(32px, 4.6vw, 60px); line-height: 1.06; letter-spacing: -.04em; font-weight: 400; max-width: 21ch }
.quote em { font-style: normal; color: var(--stone) }

/* ruled rows */
.rows { border-top: 1px solid var(--line-2) }
.row { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: 24px; padding: 26px 0; border-bottom: 1px solid var(--line-2) }
.row h3 { font-size: 18.5px }
.row p { color: var(--ink-2) }
.row .src { display: block; margin-top: 8px; font-size: 12.5px; color: var(--stone); font-family: var(--mono) }
.dark .rows { border-top-color: var(--night-line) }
.dark .row { border-bottom-color: var(--night-line) }
.dark .row p { color: var(--mist-2) }

/* numbered steps */
.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; border-top: 1px solid var(--ink) }
.steps li { counter-increment: s; display: grid; grid-template-columns: 80px minmax(0, 3fr) minmax(0, 5fr); gap: 20px; padding: 28px 0; border-bottom: 1px solid var(--line-2); align-items: baseline }
.steps li::before { content: counter(s, decimal-leading-zero); font-family: var(--mono); font-size: 13px; color: var(--stone) }
.steps p { color: var(--ink-2) }

/* the system: panels in the deck's style */
.panel { background: var(--night-2); border: 1px solid var(--night-line); padding: 30px 32px; display: grid; align-content: start }
.panel .ph { display: flex; justify-content: space-between; gap: 16px; font-family: var(--mono); font-size: 13px; color: var(--mist-2); padding-bottom: 18px; border-bottom: 1px solid var(--night-line) }
.panel .ph b { font-weight: 400; color: var(--mist) }
.ev { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 20px; align-items: center; padding: 15px 0; border-bottom: 1px solid var(--night-line); font-size: 16px; color: var(--mist) }
.ev:last-child { border-bottom: 0 }
.ev i { display: block; height: 9px; background: var(--night-3); width: var(--w, 70%) }
.bul { display: grid; grid-template-columns: 14px minmax(0, 1fr); gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--night-line) }
.bul:last-child { border-bottom: 0 }
.bul::before { content: ""; width: 10px; height: 10px; background: var(--signal); margin-top: 8px }
.bul b { display: block; font-weight: 500; color: var(--mist); font-size: 17px }
.bul span { color: var(--mist-2); font-size: 15px }
.flow { display: grid; grid-template-columns: minmax(0, 1.25fr) 64px minmax(0, 1fr) 64px 200px; align-items: center }
.wire { position: relative; height: 1px; background: var(--mist-3); margin: 0 6px }
.wire::after { content: ""; position: absolute; right: -4px; top: -4px; width: 9px; height: 9px; border-radius: 50%; background: var(--mist-2) }
.ring { width: 200px; aspect-ratio: 1; border: 1.5px solid var(--mist); border-radius: 50%; display: grid; place-items: center; text-align: center; font-size: 22px; line-height: 1.2; letter-spacing: -.02em; color: var(--mist); padding: 20px }
.flow-note { margin-top: 44px; display: flex; gap: 18px; align-items: baseline; font-size: clamp(19px, 2.2vw, 26px); letter-spacing: -.02em; line-height: 1.35 }
.flow-note::before { content: ""; flex: none; width: 14px; height: 14px; border-radius: 50%; background: var(--mist); transform: translateY(-2px) }
.flow-note span { color: var(--mist-3) }

/* pipeline (technology) */
.pipe { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border: 1px solid var(--night-line) }
.stage { padding: 26px 24px 30px; border-right: 1px solid var(--night-line); display: grid; gap: 14px; align-content: start; position: relative; background: var(--night-2) }
.stage:last-child { border-right: 0 }
.stage .n { font-family: var(--mono); font-size: 12px; color: var(--mist-3) }
.stage h3 { color: var(--mist); font-size: 19px }
.stage ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; font-size: 14.5px; color: var(--mist-2) }
.stage ul li { display: grid; grid-template-columns: 10px minmax(0, 1fr); gap: 10px }
.stage ul li::before { content: ""; width: 6px; height: 6px; background: var(--signal); margin-top: 8px }
.stage::after { content: ""; position: absolute; right: -5px; top: 31px; width: 9px; height: 9px; border-radius: 50%; background: var(--mist-2); z-index: 1 }
.stage:last-child::after { display: none }

/* spec sheet */
.spec { border-top: 1px solid var(--ink); font-size: 16px; margin: 0 }
.spec div { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 7fr); gap: 24px; padding: 18px 0; border-bottom: 1px solid var(--line-2) }
.spec dt { font-family: var(--mono); font-size: 13px; color: var(--stone); padding-top: 3px }
.spec dd { margin: 0; color: var(--ink) }

/* product illustration (sample data) */
.ui { background: #FBFBF9; border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 30px 60px -30px rgba(25,23,20,.28), 0 2px 6px rgba(25,23,20,.05); overflow: hidden; font-size: 13px; color: var(--ink) }
.ui-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 11.5px; color: var(--stone) }
.ui-bar .dots { display: flex; gap: 6px } .ui-bar .dots i { width: 8px; height: 8px; border-radius: 50%; background: var(--line-2) }
.ui-body { padding: 18px; display: grid; gap: 14px }
.ui-kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px }
.ui-kpi { border: 1px solid var(--line); border-radius: 8px; padding: 12px; display: grid; gap: 2px; background: var(--paper-hi) }
.ui-kpi b { font-size: 22px; font-weight: 400; letter-spacing: -.03em; font-variant-numeric: tabular-nums }
.ui-kpi span { color: var(--stone); font-size: 11.5px }
.ui-table { width: 100%; border-collapse: collapse; font-size: 12.5px }
.ui-table th { text-align: left; font-weight: 400; color: var(--stone); font-family: var(--mono); font-size: 10.5px; letter-spacing: .06em; text-transform: uppercase; padding: 6px 8px; border-bottom: 1px solid var(--line) }
.ui-table td { padding: 9px 8px; border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums }
.pill { display: inline-block; border: 1px solid var(--line-2); border-radius: 999px; padding: 1px 8px; font-size: 11.5px }
.wave { display: grid; gap: 4px }
.wave .lbl { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 10.5px; color: var(--stone) }
.wave svg { width: 100%; height: 44px; display: block }
.meter { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px }
.meter div { border-top: 1.5px solid var(--ink); padding-top: 8px; display: grid }
.meter b { font-size: 17px; font-weight: 500; letter-spacing: -.02em }
.meter span { font-size: 11.5px; color: var(--stone) }
.ui-wrap { position: relative; border-radius: 18px; padding: clamp(18px, 4vw, 48px); background: url("card-a.jpg") center / cover }
.sample { font-family: var(--mono); font-size: 11.5px; color: var(--ink-2); margin-top: 12px }

/* partnership timeline */
.phases { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--ink) }
.phase { padding: 22px 24px 0 0; display: grid; gap: 12px; align-content: start; position: relative }
.phase::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; border-radius: 50%; background: var(--ink) }
.phase p { color: var(--ink-2); font-size: 15.5px }
.terms { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--night-line); border-left: 1px solid var(--night-line) }
.terms div { padding: 28px; border-right: 1px solid var(--night-line); border-bottom: 1px solid var(--night-line); display: grid; gap: 10px; align-content: start }
.terms b { font-weight: 500; font-size: 20px; letter-spacing: -.02em; color: var(--mist) }
.terms span { color: var(--mist-2); font-size: 15px }

/* faq */
.faq { border-top: 1px solid var(--line-2) }
.faq details { border-bottom: 1px solid var(--line-2) }
.faq summary { list-style: none; cursor: pointer; padding: 22px 40px 22px 0; font-size: 18.5px; font-weight: 500; letter-spacing: -.01em; position: relative }
.faq summary::-webkit-details-marker { display: none }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 18px; font-size: 24px; font-weight: 300; color: var(--stone) }
.faq details[open] summary::after { content: "–" }
.faq .a { padding: 0 0 24px; color: var(--ink-2); max-width: 68ch }

/* cta + footer */
.cta { padding-block: clamp(88px, 11vw, 150px); position: relative; overflow: hidden; isolation: isolate }
.cta .field { position: absolute; inset: 0; z-index: -1; background: url("card-d.jpg") center / cover; opacity: .55 }
.cta .wrap { display: grid; gap: 26px; justify-items: start }
.mail { font-size: clamp(26px, 4vw, 48px); font-weight: 400; letter-spacing: -.035em; text-decoration: none; border-bottom: 1.5px solid var(--ink); line-height: 1.15 }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 22px; border-radius: 999px; font-weight: 500; font-size: 15.5px; text-decoration: none; border: 1px solid var(--ink); background: var(--ink); color: var(--paper) }
.btn.ghost { background: transparent; color: var(--ink) }
.btn:hover { opacity: .88 }
.actions { display: flex; flex-wrap: wrap; gap: 12px }
footer.foot { border-top: 1px solid var(--line); padding-block: 52px calc(40px + env(safe-area-inset-bottom, 0px)); font-size: 14px; color: var(--stone) }
footer.foot .wrap { display: grid; grid-template-columns: minmax(0, 2fr) repeat(2, minmax(0, 1fr)); gap: 32px }
footer.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px }
footer.foot a { text-decoration: none } footer.foot a:hover { color: var(--ink) }
.foot-wm { display: inline-flex; color: var(--ink); margin-bottom: 16px } .foot-wm .lockup { height: 24px; width: 142px }
footer.foot .legal { grid-column: 1 / -1; border-top: 1px solid var(--line); padding-top: 22px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: 13px }

@media (max-width: 1080px) {
  .flow { grid-template-columns: 1fr; justify-items: stretch }
  .wire { width: 1px; height: 44px; margin: 0 auto }
  .wire::after { right: -4px; top: auto; bottom: -4px }
  .ring { justify-self: center; width: 180px }
  .pipe { grid-template-columns: 1fr 1fr }
  .stage { border-bottom: 1px solid var(--night-line) }
  .stage::after { display: none }
}
@media (max-width: 960px) {
  .split { grid-template-columns: 1fr }
  .sticky { position: static }
  .numbers, .phases { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 32px }
  .row, .spec div { grid-template-columns: 1fr; gap: 6px }
  .steps li { grid-template-columns: 48px minmax(0, 1fr) }
  .steps li p { grid-column: 2 }
  .ui-kpis { grid-template-columns: repeat(2, minmax(0, 1fr)) }
  .terms { grid-template-columns: 1fr }
  footer.foot .wrap { grid-template-columns: 1fr 1fr }
  footer.foot .wrap > div:first-child { grid-column: 1 / -1 }
}
@media (max-width: 560px) {
  .pipe { grid-template-columns: 1fr }
  .panel { padding: 22px 20px }
  .ev { grid-template-columns: 1fr; gap: 8px }
}

/* v4: the whole site sits on the gradient field */
body::before { content: ""; position: fixed; inset: 0; z-index: -2; background: url("field-a.jpg") 70% 30% / cover no-repeat }
body::after { content: ""; position: fixed; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(241,242,238,.55) 0%, rgba(241,242,238,.18) 55%, rgba(241,242,238,.05) 100%) }
.hero .field, .cta .field { display: none }
.hero { overflow: visible }
.sec + .sec { border-top-color: rgba(25,23,20,.1) }
.top.scrolled { background: linear-gradient(90deg, rgba(236,234,240,.86), rgba(214,198,240,.86) 55%, rgba(240,214,214,.86)); backdrop-filter: saturate(1.4) blur(18px); -webkit-backdrop-filter: saturate(1.4) blur(18px); border-bottom-color: rgba(25,23,20,.08) }
@media (max-width: 900px) { .top nav { background: rgba(241,242,238,.92); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border-bottom-color: rgba(25,23,20,.08) } }
footer.foot { border-top-color: rgba(25,23,20,.1); color: var(--ink-2) }
footer.foot .legal { border-top-color: rgba(25,23,20,.1) }
.numbers span, .muted, .footnote, .label { color: #4E4A44 }
.dark .label { color: var(--mist-3) }
/* buttons that hold their own against the colour */
.btn { background: var(--ink); color: #F7F7F4; border-color: var(--ink); box-shadow: 0 6px 18px -8px rgba(25,23,20,.45) }
.btn.ghost { background: #F7F7F4; color: var(--ink); border-color: #F7F7F4; box-shadow: 0 6px 18px -10px rgba(25,23,20,.35) }
.btn:hover { opacity: 1; transform: translateY(-1px) }
.btn { transition: transform .15s }
.dark .btn.ghost { background: transparent; color: var(--mist); border-color: var(--mist); box-shadow: none }
.top .contact-link { background: var(--ink); color: #F7F7F4; border-color: var(--ink) }
.top .contact-link:hover { background: #2C2925 }
.burger { background: var(--ink); color: #F7F7F4; border-color: var(--ink) }
.ui { background: rgba(251,251,249,.96) }