/* Nexus Labs — monochrome, after the logo: ink ground, bone type, white for live connections */
:root {
  --ink: #0b0b0e;
  --ink-2: #121217;
  --line: #24242b;
  --line-2: #33333c;
  --mute: #8f8e96;
  --soft: #b9b8bf;
  --bone: #ecebe6;
  --white: #ffffff;

  --display: 'Unbounded', 'Helvetica Neue', Arial, sans-serif;
  --sans: 'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --gutter: clamp(20px, 5vw, 48px);
  --max: 1180px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--bone);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--white); outline-offset: 3px; border-radius: 2px; }
::selection { background: var(--bone); color: var(--ink); }

.wrap { max-width: var(--max); margin: 0 auto; padding-inline: var(--gutter); }

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
}

/* ---------- header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 20;
  padding-top: env(safe-area-inset-top, 0px);
  transition: background .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
.site-header.solid, .legal .site-header {
  background: rgba(11, 11, 14, .82);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 68px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand svg { width: 30px; height: 30px; color: var(--bone); }
.brand span { font-family: var(--display); font-size: 15px; font-weight: 500; letter-spacing: 0.02em; }
.nav-links { display: flex; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav-links a { text-decoration: none; font-size: 14px; color: var(--soft); transition: color .2s; }
.nav-links a:hover { color: var(--white); }
.nav-cta { font-family: var(--mono); font-size: 13px; text-decoration: none; border: 1px solid var(--line-2); padding: 8px 14px; border-radius: 999px; transition: border-color .2s, background .2s; }
.nav-cta:hover { border-color: var(--bone); background: rgba(255,255,255,.04); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: min(92vh, 880px);
  display: flex; align-items: flex-end;
  padding-block: 120px 72px;
  overflow: hidden;
  isolation: isolate;
}
.hero canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: -1; touch-action: pan-y;
}
.hero::after { /* keeps the headline legible over the network */
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(90deg, rgba(11,11,14,.92) 0%, rgba(11,11,14,.55) 38%, rgba(11,11,14,0) 62%),
              linear-gradient(0deg, var(--ink) 0%, rgba(11,11,14,0) 26%);
}
.hero > .wrap { width: 100%; }
.hero-copy { max-width: 640px; }
.hero h1 {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(38px, 5.6vw, 72px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 18px 0 22px;
  text-wrap: balance;
}
.hero p.lead { font-size: clamp(17px, 1.6vw, 19px); color: var(--soft); max-width: 52ch; margin: 0 0 32px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 14px; text-decoration: none;
  padding: 13px 20px; border-radius: 999px; border: 1px solid var(--bone);
  transition: background .2s, color .2s, border-color .2s;
}
.btn-primary { background: var(--bone); color: var(--ink); }
.btn-primary:hover { background: var(--white); }
.btn-ghost { border-color: var(--line-2); color: var(--bone); }
.btn-ghost:hover { border-color: var(--bone); }
.hint { margin-top: 36px; display: flex; align-items: center; gap: 10px; }
.hint i { width: 7px; height: 7px; border-radius: 50%; background: var(--white); box-shadow: 0 0 0 4px rgba(255,255,255,.08); }
@media (hover: none) { .hint { display: none; } }
.hero.no-webgl { background: radial-gradient(circle at 72% 45%, #1a1a20 0, var(--ink) 55%); }
.hero.no-webgl canvas { display: none; }

/* ---------- sections ---------- */
section { padding-block: clamp(80px, 11vw, 140px); }
.section-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 40px; align-items: end; margin-bottom: 56px; }
.section-head h2 {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(28px, 3.4vw, 44px); line-height: 1.1; letter-spacing: -0.015em;
  margin: 14px 0 0; text-wrap: balance;
}
.section-head p { color: var(--soft); margin: 0; max-width: 54ch; }

/* services: a connected grid, hairlines instead of cards */
.services { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.service { padding: 36px 36px 40px 0; border-bottom: 1px solid var(--line); }
.service:nth-child(odd) { border-right: 1px solid var(--line); }
.service:nth-child(even) { padding-left: 36px; padding-right: 0; }
.service .tags { font-family: var(--mono); font-size: 12px; color: var(--mute); letter-spacing: 0.06em; }
.service h3 { font-family: var(--display); font-weight: 500; font-size: 21px; letter-spacing: -0.01em; margin: 12px 0 10px; }
.service p { margin: 0; color: var(--soft); max-width: 46ch; }

/* approach */
.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; }
.principle { padding: 32px 32px 0 0; }
.principle + .principle { padding-left: 32px; border-left: 1px solid var(--line); }
.principle h3 { font-family: var(--display); font-weight: 500; font-size: 18px; margin: 0 0 10px; letter-spacing: -0.005em; }
.principle p { margin: 0; color: var(--soft); }

/* work */
.work-list { border-top: 1px solid var(--line); }
.work-item { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr); gap: 40px; padding-block: 40px; border-bottom: 1px solid var(--line); }
.work-item h3 a { text-decoration: none; border-bottom: 1px solid var(--line-2); transition: border-color .2s; }
.work-item h3 a:hover { border-color: var(--bone); }
.work-item h3 { font-family: var(--display); font-weight: 500; font-size: clamp(22px, 2.4vw, 30px); line-height: 1.15; margin: 10px 0 0; letter-spacing: -0.01em; }
.work-item p { margin: 0 0 12px; color: var(--soft); }
.work-item ul { margin: 0; padding: 0; list-style: none; font-family: var(--mono); font-size: 13px; color: var(--mute); display: flex; flex-wrap: wrap; gap: 8px 18px; }

.figures { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 64px; }
.figure { padding-right: 24px; }
.figure + .figure { padding-left: 24px; border-left: 1px solid var(--line); }
.figure b { display: block; font-family: var(--display); font-weight: 500; font-size: clamp(30px, 3.6vw, 46px); letter-spacing: -0.02em; line-height: 1; }
.figure span { display: block; margin-top: 10px; color: var(--mute); font-size: 14px; }

/* contact */
.contact { text-align: left; }
.contact h2 {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(44px, 9vw, 120px); line-height: .98; letter-spacing: -0.035em;
  margin: 18px 0 28px;
}
.mail { font-family: var(--mono); font-size: clamp(17px, 2.2vw, 24px); text-decoration: none; border-bottom: 1px solid var(--line-2); padding-bottom: 4px; transition: border-color .2s; }
.mail:hover { border-color: var(--bone); }
.contact p { color: var(--soft); margin: 28px 0 0; max-width: 52ch; }

/* footer */
.site-footer { border-top: 1px solid var(--line); padding-block: 36px calc(36px + env(safe-area-inset-bottom, 0px)); font-size: 13px; color: var(--mute); }
.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px 32px; }
.foot address { font-style: normal; line-height: 1.7; }
.foot nav { display: flex; gap: 22px; align-items: flex-start; }
.foot a { text-decoration: none; color: var(--soft); }
.foot a:hover { color: var(--white); }

/* ---------- legal pages ---------- */
.legal main { padding-block: 140px 100px; }
.legal article { max-width: 72ch; }
.legal h1 { font-family: var(--display); font-weight: 500; font-size: clamp(32px, 4.4vw, 52px); letter-spacing: -0.02em; line-height: 1.08; margin: 14px 0 12px; }
.legal .updated { color: var(--mute); font-family: var(--mono); font-size: 13px; margin: 0 0 48px; }
.legal h2 { font-family: var(--display); font-weight: 500; font-size: 19px; letter-spacing: -0.005em; margin: 44px 0 12px; }
.legal p, .legal li { color: var(--soft); }
.legal ul { padding-left: 20px; }
.legal li { margin-bottom: 6px; }
.legal strong { color: var(--bone); font-weight: 600; }
.legal .card { border: 1px solid var(--line); border-radius: 10px; padding: 20px 22px; margin: 16px 0; background: var(--ink-2); }
.legal .card p { margin: 0; }
.table-wrap { overflow-x: auto; margin: 16px 0; }
.legal table { border-collapse: collapse; width: 100%; font-size: 15px; min-width: 560px; }
.legal th, .legal td { text-align: left; vertical-align: top; padding: 12px 14px 12px 0; border-bottom: 1px solid var(--line); color: var(--soft); }
.legal th { color: var(--bone); font-weight: 600; font-size: 13px; font-family: var(--mono); letter-spacing: .04em; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .section-head, .work-item { grid-template-columns: 1fr; gap: 16px; }
  .principles { grid-template-columns: 1fr; }
  .principle, .principle + .principle { padding: 26px 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .nav-links { display: none; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .services { grid-template-columns: 1fr; }
  .service, .service:nth-child(even) { padding: 28px 0 32px; border-right: 0; }
  .figures { grid-template-columns: 1fr; gap: 28px; }
  .figure, .figure + .figure { padding: 0; border-left: 0; }
  .hero { align-items: flex-end; padding-top: 96px; }
  .hero::after { background: linear-gradient(0deg, rgba(11,11,14,.96) 0%, rgba(11,11,14,.72) 45%, rgba(11,11,14,.2) 100%); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}