/* Northbound v2: Brand Lab-style layout in black and eggshell. Every corner is 90 degrees. */
:root {
  --bg: #0A0A0A;
  --bg2: #131312;
  --ink: #EFE9D8;
  --mute: rgba(239,233,216,.64);
  --faint: rgba(239,233,216,.40);
  --line: rgba(239,233,216,.15);
  --tile: rgba(239,233,216,.045);
  --paper: #EFE9D8;
  --on-paper: #0A0A0A;
  --on-paper-mute: rgba(10,10,10,.62);
  --on-paper-line: rgba(10,10,10,.18);
  --sans: "Inter", -apple-system, "Helvetica Neue", Arial, sans-serif;
  --serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
}
*, *::before, *::after { box-sizing: border-box; border-radius: 0 !important; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
p, h1, h2, h3 { margin: 0; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.it { font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -0.01em; }

/* nav */
.nav { position: sticky; top: 0; z-index: 30; background: rgba(10,10,10,.88); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.navrow { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; height: 72px; gap: 20px; }
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-size: 20px; letter-spacing: -0.02em; font-weight: 500; }
.mark { width: 26px; height: 26px; flex: none; display: block; }
.mark rect { fill: var(--ink); }
.mark polygon { fill: var(--bg); }
.nav nav { display: flex; gap: 34px; font-size: 14px; }
.nav nav a { text-decoration: none; color: var(--mute); padding: 6px 0; border-bottom: 1px solid transparent; }
.nav nav a:hover, .nav nav a[aria-current] { color: var(--ink); border-bottom-color: var(--ink); }
.navrow .right { justify-self: end; }

/* buttons */
.btn { display: inline-block; padding: 14px 24px; font: 500 14px/1 var(--sans); text-decoration: none; border: 1px solid var(--ink); cursor: pointer; transition: background .15s, color .15s; }
.btn-fill { background: var(--ink); color: var(--bg); }
.btn-fill:hover { background: #fff; border-color: #fff; }
.btn-line { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-line:hover { border-color: var(--ink); }
.btn-sm { padding: 11px 18px; }
.btnrow { display: flex; gap: 12px; flex-wrap: wrap; }

/* labels */
.tag { font: 400 12px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--mute); display: inline-flex; align-items: center; gap: 14px; }
.tag::before { content: ""; width: 38px; height: 1px; background: var(--faint); }
.tag.plain::before { display: none; }
.pill { display: inline-block; border: 1px solid var(--line); padding: 8px 14px; font: 400 11px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--mute); background: var(--tile); }

/* hero */
.gridbg { background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 72px 72px; -webkit-mask-image: radial-gradient(ellipse at 50% 35%, #000 25%, transparent 78%); mask-image: radial-gradient(ellipse at 50% 35%, #000 25%, transparent 78%); }
.hero { position: relative; overflow: hidden; padding: 130px 0 110px; text-align: center; }
.hero .gridbg { position: absolute; inset: 0; opacity: .55; }
.hero .wrap { position: relative; display: grid; justify-items: center; gap: 28px; }
h1 { font-weight: 500; letter-spacing: -0.035em; line-height: 1.02; font-size: clamp(44px, 7.4vw, 96px); }
h1 .it { font-size: 1.08em; }
.hero p.sub { max-width: 58ch; color: var(--mute); font-size: 18px; }
.hero.left { text-align: left; padding-bottom: 90px; }
.hero.left .wrap { justify-items: start; }
.split { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: end; width: 100%; }

/* industries strip */
.strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 26px 0; }
.strip .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 12px 40px; }
.strip .item { font-size: 18px; color: var(--ink); letter-spacing: -0.01em; }
.strip .label { font: 400 11px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--faint); }

/* sections */
.sec { padding: 110px 0; }
.sec.alt { background: var(--bg2); }
.sec.paper { background: var(--paper); color: var(--on-paper); --mute: var(--on-paper-mute); --line: var(--on-paper-line); --faint: rgba(10,10,10,.45); --ink: var(--on-paper); --tile: rgba(10,10,10,.05); --bg: var(--paper); }
.sec-head { display: grid; grid-template-columns: 1fr 1fr; gap: 40px 60px; align-items: end; margin-bottom: 56px; }
.sec-head.center { grid-template-columns: 1fr; text-align: center; justify-items: center; }
h2 { font-weight: 500; letter-spacing: -0.03em; line-height: 1.05; font-size: clamp(34px, 5vw, 60px); }
h2 .it { font-size: 1.08em; }
h3 { font-weight: 500; letter-spacing: -0.02em; font-size: 22px; line-height: 1.2; }
.sec-head p { color: var(--mute); font-size: 17px; }
.sec-head .tag { margin-bottom: 18px; }
hr.rule { border: 0; border-top: 1px solid var(--line); margin: 0; }

/* project cards (home) */
.cards3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.proj { border: 1px solid var(--line); background: var(--tile); min-height: 380px; padding: 26px; display: flex; flex-direction: column; justify-content: space-between; position: relative; overflow: hidden; text-decoration: none; transition: border-color .15s; }
.proj:hover { border-color: var(--ink); }
.proj .gridbg { position: absolute; inset: 0; opacity: .5; -webkit-mask-image: linear-gradient(180deg, #000, transparent 70%); mask-image: linear-gradient(180deg, #000, transparent 70%); }
.proj > * { position: relative; }
.proj h3 { font-size: 34px; letter-spacing: -0.03em; font-weight: 400; }
.proj p { color: var(--mute); font-size: 15px; margin-top: 8px; }
.proj .stat { font: 400 12px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--mute); }

/* about */
.about { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.panel { position: relative; border: 1px solid var(--line); background: var(--tile); aspect-ratio: 1 / 1; display: grid; place-items: center; overflow: hidden; }
.panel .gridbg { position: absolute; inset: 0; opacity: .6; -webkit-mask-image: none; mask-image: none; }
.panel .bigmark { position: relative; width: 38%; height: auto; }
.panel .bigmark rect { fill: var(--ink); }
.panel .bigmark polygon { fill: var(--bg); }
.badge { position: absolute; right: -1px; bottom: -1px; background: var(--bg); border: 1px solid var(--line); padding: 14px 18px; font-size: 13px; color: var(--mute); }
.badge b { display: block; font: 400 11px/1 var(--mono); letter-spacing: .16em; color: var(--ink); margin-bottom: 6px; }
.about p { color: var(--mute); font-size: 17px; margin-top: 20px; max-width: 50ch; }

/* numbered rows */
.rows { border-top: 1px solid var(--line); }
.row { display: grid; grid-template-columns: 90px 1fr 1.3fr; gap: 30px; padding: 34px 0; border-bottom: 1px solid var(--line); align-items: start; }
.row .no { font: 400 13px/1.6 var(--mono); color: var(--faint); letter-spacing: .1em; }
.row p { color: var(--mute); }
.row .tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.chip { border: 1px solid var(--line); padding: 7px 11px; font: 400 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--mute); }

/* stat tiles */
.tiles { display: grid; gap: 12px; }
.t3 { grid-template-columns: repeat(3, 1fr); }
.t5 { grid-template-columns: repeat(5, 1fr); }
.t2 { grid-template-columns: 1fr 1fr; }
.tile { border: 1px solid var(--line); background: var(--tile); padding: 22px; }
.tile b { display: block; font-weight: 500; font-size: clamp(28px, 3.4vw, 44px); letter-spacing: -0.03em; line-height: 1; }
.tile span { display: block; margin-top: 12px; font: 400 11px/1.4 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--mute); }

/* cta */
.cta { text-align: center; padding: 120px 0; position: relative; overflow: hidden; }
.cta .gridbg { position: absolute; inset: 0; opacity: .45; }
.cta .wrap { position: relative; display: grid; justify-items: center; gap: 28px; }
.cta p { color: var(--mute); max-width: 50ch; }

/* case study blocks */
.case { display: grid; grid-template-columns: 1fr 1.25fr; gap: 0; padding: 70px 0; border-top: 1px solid var(--line); }
.case .left { padding-right: 48px; border-right: 1px solid var(--line); display: grid; gap: 22px; align-content: start; }
.case .right { padding-left: 48px; display: grid; gap: 34px; align-content: start; }
.case .num { display: flex; align-items: baseline; gap: 16px; }
.case .num i { font: 400 60px/1 var(--mono); color: var(--faint); font-style: normal; }
.case .num span { font-size: 30px; letter-spacing: -0.02em; font-weight: 500; }
.case .vis { border: 1px solid var(--line); background: var(--tile); aspect-ratio: 4 / 3; position: relative; overflow: hidden; display: grid; place-items: center; }
.case .vis .gridbg { position: absolute; inset: 0; opacity: .55; -webkit-mask-image: none; mask-image: none; }
.case .vis .statusbox { position: relative; text-align: center; display: grid; gap: 10px; justify-items: center; padding: 20px; }
.case h3.big { font-size: clamp(26px, 3vw, 38px); letter-spacing: -0.03em; font-weight: 500; line-height: 1.1; }
.case .sect .tag { margin-bottom: 14px; font-size: 11px; }
.case .sect p { color: var(--mute); }
.case .sect p + p { margin-top: 12px; }

/* faq */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); padding: 22px 0; }
.faq summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 20px; font-size: 20px; letter-spacing: -0.01em; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 24px; line-height: 1; color: var(--mute); }
.faq details[open] summary::after { content: "\2013"; }
.faq details > p, .faq details > div { margin-top: 14px; color: var(--mute); max-width: 70ch; }
.ps { border-top: 1px solid var(--line); padding: 14px 0; display: grid; gap: 4px; }
.ps:first-child { border-top: 0; }
.ps .pr { color: var(--faint); font-size: 14px; }
.ps .so { color: var(--ink); }

/* pricing + form */
.price3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.price { border: 1px solid var(--line); background: var(--tile); padding: 30px; display: grid; gap: 14px; align-content: start; }
.price .big { font-size: 44px; letter-spacing: -0.04em; line-height: 1; }
.price .big small { font-size: 14px; letter-spacing: 0; color: var(--mute); }
.price p { color: var(--mute); font-size: 15px; }
.price.hi { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.price.hi .tag, .price.hi p, .price.hi .big small { color: rgba(10,10,10,.65); }
.price.hi .tag::before { background: rgba(10,10,10,.4); }
.form { border: 1px solid var(--line); background: var(--tile); padding: 32px; display: grid; gap: 16px; }
.form label { display: grid; gap: 8px; font: 400 11px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--mute); }
.form input { font: 400 16px var(--sans); padding: 14px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); text-transform: none; letter-spacing: 0; width: 100%; }
.form input:focus { outline: 2px solid var(--ink); outline-offset: -1px; }
.note { font-size: 13px; color: var(--faint); }

footer { border-top: 1px solid var(--line); padding: 60px 0 40px; font-size: 14px; color: var(--mute); }
.foot { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; }
.foot h4 { margin: 0 0 14px; font: 400 11px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--faint); }
.foot a { display: block; text-decoration: none; padding: 4px 0; }
.foot a:hover { color: var(--ink); }
.legal { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--line); font: 400 12px/1.5 var(--mono); color: var(--faint); }


/* brand marquee (placeholder brands), slides left to right */
.marquee { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 22px 0 28px; }
.mlabel { text-align: center; font: 400 10px/1 var(--mono); letter-spacing: .18em; text-transform: uppercase; color: var(--faint); margin-bottom: 20px; }
.mview { overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.mtrack { display: flex; width: max-content; animation: slideltr 42s linear infinite; }
.mtrack:hover { animation-play-state: paused; }
.b { display: inline-flex; align-items: center; gap: 10px; padding-right: 72px; font-size: 24px; color: var(--mute); white-space: nowrap; letter-spacing: -0.02em; }
.b i { width: 14px; height: 14px; background: currentColor; display: inline-block; flex: none; opacity: .8; }
.b.s1 { font-weight: 500; }
.b.s2 { font-family: var(--mono); font-size: 18px; letter-spacing: .14em; text-transform: uppercase; }
.b.s3 { font-family: var(--serif); font-style: italic; font-size: 28px; }
.b.s4 { font-weight: 400; text-transform: lowercase; letter-spacing: -0.04em; }
@keyframes slideltr { from { transform: translateX(-50%); } to { transform: translateX(0); } }
@media (prefers-reduced-motion: reduce) { .mtrack { animation: none; } }

@media (max-width: 980px) {
  .navrow { grid-template-columns: 1fr auto; height: auto; padding: 12px 0; row-gap: 10px; }
  .nav nav { grid-column: 1 / -1; order: 3; gap: 22px; overflow-x: auto; white-space: nowrap; }
  .split, .sec-head, .about, .case { grid-template-columns: 1fr; gap: 36px; }
  .cards3, .price3 { grid-template-columns: 1fr; }
  .t5 { grid-template-columns: 1fr 1fr; }
  .row { grid-template-columns: 1fr; gap: 10px; }
  .case .left { padding-right: 0; border-right: 0; }
  .case .right { padding-left: 0; }
  .foot { grid-template-columns: 1fr 1fr; }
  .sec { padding: 76px 0; }
  .hero { padding: 90px 0 70px; }
}
@media (max-width: 600px) {
  .t3, .t2 { grid-template-columns: 1fr 1fr; }
  .btn { width: 100%; text-align: center; }
  .btnrow { flex-direction: column; width: 100%; }
  .navrow .btn { width: auto; }
}