/* NexLine Editorial v2 — Architectural Calm + Quiet Intelligence */
:root {
  color-scheme: light;
  --nx-bg: #f4f0e8;
  --nx-paper: #fbf8f2;
  --nx-paper-2: #ece6dc;
  --nx-ink: #171a18;
  --nx-muted: #666b65;
  --nx-line: rgba(23, 26, 24, .18);
  --nx-line-strong: rgba(23, 26, 24, .34);
  --nx-accent: #166b58;
  --nx-accent-soft: #dcebe5;
  --nx-dark: #111715;
  --nx-dark-2: #18201d;
  --nx-dark-text: #f1eee7;
  --nx-dark-muted: #aab3ad;
  --nx-serif: 'DM Serif Display', Georgia, serif;
  --nx-sans: 'DM Sans', system-ui, sans-serif;
  --nx-mono: 'JetBrains Mono', ui-monospace, monospace;
  --nx-max: 1280px;
  --nx-pad: clamp(1.15rem, 4vw, 4rem);
  --nx-section: clamp(4.5rem, 9vw, 8rem);
  --nx-shadow: 0 24px 70px rgba(30, 34, 31, .11);
}

:root[data-theme='dark'] {
  color-scheme: dark;
  --nx-bg: #101412;
  --nx-paper: #151a17;
  --nx-paper-2: #1b211e;
  --nx-ink: #f0eee8;
  --nx-muted: #a8b0aa;
  --nx-line: rgba(240, 238, 232, .15);
  --nx-line-strong: rgba(240, 238, 232, .32);
  --nx-accent: #78c8ae;
  --nx-accent-soft: #183d33;
  --nx-dark: #080c0a;
  --nx-dark-2: #111814;
  --nx-dark-text: #f5f1e9;
  --nx-dark-muted: #aab5ae;
  --nx-shadow: 0 24px 70px rgba(0, 0, 0, .34);
}

html { scroll-behavior: smooth; scroll-padding-top: 5.5rem; }
body {
  background: var(--nx-bg);
  color: var(--nx-ink);
  font-family: var(--nx-sans);
  line-height: 1.65;
  overflow-x: clip;
}
body::before, .ambient-light { display: none !important; }
main, footer { position: relative; z-index: 1; }
a { color: inherit; }
::selection { background: var(--nx-accent); color: var(--nx-paper); }

/* Navigation */
header[role='banner'] {
  position: fixed;
  inset: 0 0 auto;
  width: 100%;
  z-index: 1000;
  background: color-mix(in srgb, var(--nx-bg) 88%, transparent);
  border-bottom: 1px solid var(--nx-line);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
header[role='banner'] nav {
  max-width: var(--nx-max);
  min-height: 76px;
  margin: 0 auto;
  padding: .85rem var(--nx-pad);
  display: flex;
  align-items: center;
  gap: clamp(.75rem, 2vw, 2rem);
}
.nav-logo::before { content: ''; width: 8px; height: 8px; background: var(--accent); border-radius: 50%; box-shadow: 0 0 10px var(--accent); animation: pulse 2s ease-in-out infinite; }
.nav-logo-text { font-family: var(--nx-mono); font-size: .95rem; font-weight: 500; letter-spacing: .06em; color: var(--nx-accent); text-decoration: none; }
:root:not([data-theme="dark"]) .nav-logo-text { color: #1a1a1a; }
.nav-links { margin-left: auto; display: flex; gap: .2rem; flex-wrap: nowrap; }
.nav-links a, .lang-current {
  color: var(--nx-muted);
  font: 500 .78rem/1 var(--nx-mono);
  letter-spacing: .06em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 0;
  padding: .65rem .55rem;
  transition: color .2s ease;
}
.nav-links a:hover, .nav-links a:focus-visible, .lang-current:hover { color: var(--nx-ink); }
.nav-links a.active { color: var(--nx-accent); }
.nav-cta {
  color: var(--nx-paper) !important;
  background: var(--nx-ink) !important;
  border: 1px solid var(--nx-ink) !important;
  border-radius: 0 !important;
  padding: .75rem 1rem !important;
  font: 500 .76rem/1 var(--nx-mono) !important;
  letter-spacing: .07em;
  text-transform: uppercase;
  text-decoration: none;
}
.nav-cta:hover { color: var(--nx-paper) !important; opacity: .84; }
.lang-selector { position: relative; }
.lang-current { background: transparent; border: 0; cursor: pointer; }
.lang-options {
  position: absolute;
  top: calc(100% + .7rem);
  right: 0;
  left: auto;
  min-width: 11rem;
  display: none;
  background: var(--nx-paper);
  border: 1px solid var(--nx-line);
  box-shadow: var(--nx-shadow);
}
.lang-selector.open .lang-options { display: grid; }
.lang-option {
  color: var(--nx-muted);
  padding: .75rem 1rem;
  text-decoration: none;
  font: .76rem/1.2 var(--nx-mono);
  border-bottom: 1px solid var(--nx-line);
}
.lang-option:last-child { border: 0; }
.lang-option:hover, .lang-option:focus-visible { color: var(--nx-ink); background: var(--nx-paper-2); }
.theme-toggle {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  color: var(--nx-ink);
  background: transparent;
  border: 1px solid var(--nx-line);
  border-radius: 50%;
  cursor: pointer;
}
.theme-toggle:hover, .theme-toggle:focus-visible { border-color: var(--nx-line-strong); }
.theme-toggle svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.6; }
.theme-toggle .moon { display: none; }
:root[data-theme='dark'] .theme-toggle .sun { display: none; }
:root[data-theme='dark'] .theme-toggle .moon { display: block; }
.hamburger { color: var(--nx-ink); }
.hamburger span { background: currentColor; }

/* Hero */
.hero {
  min-height: auto;
  padding: clamp(3rem,6vw,4rem) 0 0;
  display: block;
  background: var(--nx-bg);
  overflow: hidden;
}
.hero { padding-top: 68px !important; }
.hero-shell {
  max-width: var(--nx-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  border-inline: 1px solid var(--nx-line);
}
.hero-top {
  text-align: left;
  max-width: none;
  margin: 0;
  padding: clamp(1rem, 2.5vw, 2rem) var(--nx-pad) clamp(1rem, 3vw, 2rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--nx-line);
  min-width: 0;
  overflow: hidden;
}
.hero-badge {
  width: fit-content;
  margin-bottom: 1.25rem;
  padding: 0;
  color: var(--nx-accent);
  background: transparent;
  border: 0;
  border-radius: 0;
  font: 500 .68rem/1.4 var(--nx-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.badge-dot { width: 6px; height: 6px; background: var(--nx-accent); box-shadow: none; }
.hero-top h1 {
  max-width: 100%;
  margin: 0 0 1rem;
  color: var(--nx-ink);
  font: 400 clamp(2.5rem, 4vw, 5rem)/1.05 var(--nx-serif);
  letter-spacing: -.035em;
}
.hero-top h1 .grad { color: var(--nx-accent); background: none; -webkit-text-fill-color: currentColor; }
.hero-top > p {
  max-width: 48ch;
  margin: 0;
  color: var(--nx-muted);
  font-size: clamp(.9rem, 1.3vw, 1.05rem);
  line-height: 1.65;
}
.hero-continuity {
  margin-bottom: .5rem !important;
  color: var(--nx-ink) !important;
  font: 500 .68rem/1.4 var(--nx-mono) !important;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin-top: 1.25rem; }
.hero-primary {
  padding: .9rem 1.1rem;
  color: var(--nx-paper);
  background: var(--nx-ink);
  border: 1px solid var(--nx-ink);
  text-decoration: none;
  font: 500 .74rem/1 var(--nx-mono);
  letter-spacing: .07em;
  text-transform: uppercase;
}
.hero-secondary {
  color: var(--nx-ink);
  border-bottom: 1px solid var(--nx-line-strong);
  padding: .35rem 0;
  text-decoration: none;
  font: 500 .74rem/1 var(--nx-mono);
  letter-spacing: .05em;
}
.architectural-visual {
  position: relative;
  min-height: clamp(25rem, 47vw, 39rem);
  overflow: hidden;
  isolation: isolate;
  background:
    linear-gradient(90deg, transparent 0 57%, var(--nx-line) 57% 57.15%, transparent 57.15%),
    linear-gradient(180deg, color-mix(in srgb, var(--nx-accent) 12%, var(--nx-paper)), var(--nx-paper-2));
}
.architectural-visual::before {
  content: '';
  position: absolute;
  inset: 10% 42% 25% 8%;
  border: 1px solid var(--nx-line-strong);
  background:
    linear-gradient(90deg, transparent 49.7%, var(--nx-line) 50%, transparent 50.3%),
    linear-gradient(180deg, color-mix(in srgb, var(--nx-accent) 12%, transparent), transparent),
    var(--nx-paper);
  box-shadow: clamp(.8rem, 2vw, 1.5rem) clamp(.8rem, 2vw, 1.5rem) 0 color-mix(in srgb, var(--nx-ink) 7%, transparent);
}
.architectural-visual::after {
  content: '';
  position: absolute;
  left: 25%; right: 8%; bottom: 10%; height: 24%;
  border-radius: 50% 50% 5% 5%;
  background: color-mix(in srgb, var(--nx-ink) 23%, var(--nx-paper));
  box-shadow: 0 2rem 4rem color-mix(in srgb, var(--nx-ink) 16%, transparent);
}
.wall-panel {
  position: absolute;
  z-index: 3;
  right: 9%; top: 20%;
  width: 3.4rem; aspect-ratio: .62;
  display: grid; place-items: center;
  color: var(--nx-dark-text);
  background: var(--nx-dark);
  border: 1px solid rgba(255,255,255,.15);
  font: .68rem/1 var(--nx-mono);
}
.room-status {
  position: absolute;
  z-index: 3;
  left: 7%; bottom: 5%;
  padding: .65rem .8rem;
  color: var(--nx-ink);
  background: color-mix(in srgb, var(--nx-bg) 84%, transparent);
  border: 1px solid var(--nx-line);
  font: 500 .65rem/1.2 var(--nx-mono);
  letter-spacing: .07em;
}
.hero-layout.legacy-demo { display: none !important; }
.hero-proof {
  max-width: var(--nx-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.35fr repeat(4, 1fr);
  border: 1px solid var(--nx-line);
  border-top: 0;
}
.hero-proof > div { min-height: 92px; padding: 1.15rem; border-left: 1px solid var(--nx-line); }
.hero-proof > div:first-child { border-left: 0; }
.hero-proof strong { display: block; margin-bottom: .25rem; font-family: var(--nx-serif); font-size: 1.05rem; font-weight: 400; }
.hero-proof span { color: var(--nx-muted); font: .66rem/1.4 var(--nx-mono); letter-spacing: .05em; text-transform: uppercase; }

/* Shared section language */
.section { padding: var(--nx-section) 0; position: relative; background: var(--nx-bg); }
.section > .container { max-width: var(--nx-max); padding-inline: var(--nx-pad); }
.sec-label, .audience-label, .project-label, .manifesto-label {
  color: var(--nx-accent);
  font: 500 .7rem/1.4 var(--nx-mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}
.sec-label { margin-bottom: 1rem; }
.sec-title {
  max-width: 18ch;
  margin: 0 0 1rem;
  color: var(--nx-ink);
  font: 400 clamp(2rem, 3.5vw, 4rem)/1.05 var(--nx-serif);
  letter-spacing: -.03em;
}
.sec-sub { max-width: 58ch; margin: 0 0 clamp(2.3rem, 5vw, 4rem); color: var(--nx-muted); font-size: 1rem; }

/* Services: expandable editorial rows */
.services-grid { display: block; border-top: 1px solid var(--nx-line-strong); }
.service-row { border-bottom: 1px solid var(--nx-line); }
.service-row summary {
  list-style: none;
  display: grid;
  grid-template-columns: 3.5rem 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1.35rem 0 1.35rem .75rem;
  cursor: pointer;
}
.service-row summary::-webkit-details-marker { display: none; }
.service-row summary:focus-visible { outline: 2px solid var(--nx-accent); outline-offset: 4px; }
.service-row .svc-num { color: var(--nx-muted); font: .7rem/1 var(--nx-mono); }
.service-row summary h3 { margin: 0; color: var(--nx-ink); font: 400 clamp(1.45rem, 2.4vw, 2rem)/1.1 var(--nx-serif); }
.service-plus { color: var(--nx-accent); font: 1.4rem/1 var(--nx-mono); transition: transform .2s ease; }
.service-row[open] .service-plus { transform: rotate(45deg); }
.service-body {
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr) minmax(15rem, .7fr);
  gap: 1rem;
  padding: 0 0 1.6rem;
}
.service-body > p { grid-column: 2; max-width: 65ch; margin: 0; color: var(--nx-muted); line-height: 1.75; }
.service-body .tags { grid-column: 3; align-content: start; }
.tags { display: flex; flex-wrap: wrap; gap: .45rem .8rem; }
.tag, .sec-tag, .stack-tag {
  padding: 0;
  color: var(--nx-muted);
  background: none;
  border: 0;
  border-radius: 0;
  font: .64rem/1.5 var(--nx-mono);
  letter-spacing: .06em;
  text-transform: uppercase;
}
:root:not([data-theme="dark"]) .sec-tag { color: #4a5570; }
.tag::before, .sec-tag::before, .stack-tag::before { content: '— '; color: var(--nx-accent); }
.svc-icon { display: none; }

/* Audience matrix */
.audience-heading { display: grid; grid-template-columns: .35fr 1fr 1fr; gap: 1.5rem; margin: clamp(4.5rem, 9vw, 8rem) 0 2rem; }
.audience-heading h2 { margin: 0; max-width: 15ch; color: var(--nx-ink); font: 400 clamp(1.8rem, 3.5vw, 3.2rem)/1.05 var(--nx-serif); }
.audience-heading p { margin: 0; color: var(--nx-muted); max-width: 45ch; }
.segments-wrap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--nx-line); border-left: 1px solid var(--nx-line); }
.segment-card {
  min-width: 0;
  padding: 1.35rem;
  background: transparent;
  border: 0;
  border-right: 1px solid var(--nx-line);
  border-bottom: 1px solid var(--nx-line);
  border-radius: 0;
  box-shadow: none;
}
.segment-card h3 { color: var(--nx-ink); font: 400 1.35rem/1.2 var(--nx-serif); }
.segment-card p { color: var(--nx-muted); }
.segment-card .flag { display: none; }

/* Quiet Intelligence system */
#stack.system-section { color: var(--nx-dark-text); background: var(--nx-dark); overflow: hidden; }
#stack.system-section::before {
  content: '';
  position: absolute; inset: 0;
  pointer-events: none;
  opacity: .45;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 48px 48px;
}
#stack .sec-label { color: #82d7bb; }
#stack .sec-title { color: var(--nx-dark-text); }
#stack .sec-sub { color: var(--nx-dark-muted); }
.system-intro { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(2rem, 6vw, 6rem); align-items: center; margin-bottom: 3rem; }
.system-intro-copy .sec-sub { margin-bottom: 0; }
.system-map { position: relative; min-height: 280px; display: grid; place-items: center; }
.system-orbit { position: absolute; inset: 8%; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; }
.system-core {
  width: 9rem; aspect-ratio: 1; z-index: 2;
  display: grid; place-items: center; text-align: center;
  border: 1px solid rgba(255,255,255,.5); border-radius: 50%;
  color: var(--nx-dark-text);
  box-shadow: 0 0 5rem rgba(120,200,174,.24);
  font: 500 .72rem/1.5 var(--nx-mono); letter-spacing: .08em;
}
.system-node { position: absolute; color: var(--nx-dark-muted); font: .65rem/1 var(--nx-mono); letter-spacing: .08em; }
.system-node.n1 { top: 6%; left: 3%; }.system-node.n2 { top: 8%; right: 3%; }.system-node.n3 { bottom: 7%; left: 7%; }.system-node.n4 { right: 4%; bottom: 6%; }
.stack-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-left: 1px solid rgba(255,255,255,.16); border-top: 1px solid rgba(255,255,255,.16); }
.stack-card {
  min-width: 0; padding: 1.3rem;
  background: transparent; border: 0; border-radius: 0; box-shadow: none;
  border-right: 1px solid rgba(255,255,255,.16); border-bottom: 1px solid rgba(255,255,255,.16);
}
.stack-card h3 { color: var(--nx-dark-text); font: 400 1.35rem/1.2 var(--nx-serif); }
.stack-card p { color: var(--nx-dark-muted); }
.stack-icon { color: #82d7bb; }
.stack-icon svg { width: 24px; height: 24px; }
.stack-tag { color: var(--nx-dark-muted); }
.video-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin-top: 4rem; border: 1px solid rgba(255,255,255,.16); }
.video-card { background: transparent; border: 0; border-radius: 0; box-shadow: none; }
.video-card + .video-card { border-left: 1px solid rgba(255,255,255,.16); }
.video-thumb { border-radius: 0; aspect-ratio: 16/9; background: var(--nx-dark-2); }
.video-thumb img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.55) contrast(1.04); opacity: .76; transition: opacity .25s ease, filter .25s ease; }
.video-thumb:hover img { opacity: .95; filter: saturate(.8); }
.video-info { padding: 1.35rem; }
.video-info h3 { color: var(--nx-dark-text); font: 400 1.5rem/1.2 var(--nx-serif); }
.video-info p { color: var(--nx-dark-muted); }
.play-btn { background: rgba(11,16,13,.78); border: 1px solid rgba(255,255,255,.5); }

/* Featured project */
.featured-project { padding: 0; background: var(--nx-bg); border-bottom: 1px solid var(--nx-line); }
.project-grid { max-width: var(--nx-max); margin: 0 auto; display: grid; grid-template-columns: .95fr 1.05fr; border-inline: 1px solid var(--nx-line); min-height: 0; }
.project-art { position: relative; overflow: hidden; background: linear-gradient(180deg, color-mix(in srgb, var(--nx-ink) 22%, var(--nx-paper)), var(--nx-paper-2)); align-self: stretch; min-height: 280px; }
.project-art::before {
  content: ''; position: absolute; inset: 13% 7% 0;
  background:
    linear-gradient(90deg, transparent 16%, var(--nx-bg) 16% 18%, transparent 18% 48%, var(--nx-bg) 48% 50%, transparent 50% 81%, var(--nx-bg) 81% 83%, transparent 83%),
    linear-gradient(180deg, transparent 30%, var(--nx-bg) 30% 32%, transparent 32% 64%, var(--nx-bg) 64% 66%, transparent 66%),
    color-mix(in srgb, var(--nx-ink) 65%, var(--nx-bg));
  clip-path: polygon(0 15%,20% 15%,20% 5%,42% 5%,42% 0,67% 0,67% 8%,84% 8%,84% 17%,100% 17%,100% 100%,0 100%);
}
.project-art::after { content: ''; position: absolute; inset: 0; background-image: linear-gradient(90deg, var(--nx-line) 1px, transparent 1px); background-size: 14.285% 100%; }
.project-copy { padding: clamp(1.5rem, 4vw, 3rem) var(--nx-pad); display: flex; flex-direction: column; justify-content: center; min-width: 0; overflow: hidden; }
.project-copy h2 { margin: 1rem 0 1.2rem; color: var(--nx-ink); font: 400 clamp(2rem, 3.5vw, 4rem)/1.05 var(--nx-serif); letter-spacing: -.03em; }
.project-copy > p { color: var(--nx-muted); max-width: 52ch; }
.project-metrics { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 2rem; border-top: 1px solid var(--nx-line); }
.project-metrics div { padding: 1.2rem .8rem 0 0; border-right: 1px solid var(--nx-line); }
.project-metrics div + div { padding-left: .8rem; }.project-metrics div:last-child { border-right: 0; }
.project-metrics strong { display: block; color: var(--nx-ink); font: 400 1.3rem/1.2 var(--nx-serif); }
.project-metrics span { color: var(--nx-muted); font: .62rem/1.4 var(--nx-mono); text-transform: uppercase; }

/* Principles + process */
.why-section { background: var(--nx-paper); }
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--nx-line); border-left: 1px solid var(--nx-line); }
.why-card { padding: 1.35rem; background: transparent; border: 0; border-radius: 0; box-shadow: none; border-right: 1px solid var(--nx-line); border-bottom: 1px solid var(--nx-line); }
.why-card h3 { color: var(--nx-ink); font: 400 1.45rem/1.2 var(--nx-serif); }
.why-card p { color: var(--nx-muted); }
.why-icon { display: grid; place-items: center; width: 34px; height: 34px; color: var(--nx-accent); background: transparent; border: 1px solid var(--nx-line); border-radius: 50%; }
.why-icon svg { width: 17px; height: 17px; }
.process-track { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; border-top: 1px solid var(--nx-line-strong); }
.process-track::before { display: none; }
.process-step { text-align: left; padding: 1.35rem 1.1rem 0 0; border-right: 1px solid var(--nx-line); }
.process-step + .process-step { padding-left: 1.1rem; }
.step-circle { width: auto; height: auto; margin: 0 0 2rem; display: block; color: var(--nx-accent); background: none; border: 0; border-radius: 0; font: .7rem/1 var(--nx-mono); }
.process-step h3 { color: var(--nx-ink); font: 400 1.35rem/1.2 var(--nx-serif); }
.process-step p { color: var(--nx-muted); }

/* Manifesto */
.manifesto-band { color: var(--nx-dark-text); background: var(--nx-dark); }
.manifesto-inner { max-width: var(--nx-max); margin: 0 auto; padding: var(--nx-section) var(--nx-pad); display: grid; grid-template-columns: .35fr 1.15fr .75fr; gap: clamp(1.5rem, 4vw, 4rem); align-items: center; }
.manifesto-label { color: #82d7bb; }
.manifesto-inner blockquote { margin: 0; color: var(--nx-dark-text); font: 400 clamp(2.3rem, 5vw, 4.8rem)/1 var(--nx-serif); letter-spacing: -.03em; }
.manifesto-inner blockquote em { color: #82d7bb; font-style: italic; }
.manifesto-copy { color: var(--nx-dark-muted); }
.manifesto-copy a { display: inline-block; margin-top: 1rem; color: var(--nx-dark-text); border-bottom: 1px solid rgba(255,255,255,.4); text-decoration: none; font: .7rem/1.5 var(--nx-mono); text-transform: uppercase; letter-spacing: .07em; }

/* Contact */
#contact { background: var(--nx-paper); }
.cta-box { padding: clamp(2rem, 6vw, 5rem); color: var(--nx-ink); background: transparent; border: 1px solid var(--nx-line-strong); border-radius: 0; box-shadow: none; text-align: left; }
.cta-box::before { display: none; }
.cta-box h2 { max-width: 15ch; color: var(--nx-ink); font: 400 clamp(2rem, 3.5vw, 4rem)/1.05 var(--nx-serif); letter-spacing: -.03em; }
.cta-box > p { max-width: 52ch; margin: 1rem 0 2rem; color: var(--nx-muted); }
.contact-form { max-width: none; }
.contact-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.contact-input, .contact-textarea {
  width: 100%; color: var(--nx-ink); background: transparent; border: 0; border-bottom: 1px solid var(--nx-line-strong); border-radius: 0; padding: .9rem 0; font: 1rem/1.4 var(--nx-sans);
}
.contact-input:focus, .contact-textarea:focus { outline: 0; border-color: var(--nx-accent); }
.contact-textarea { margin-top: 1rem; resize: vertical; }
.btn-cta { margin-top: 1rem; padding: .95rem 1.2rem; color: var(--nx-paper); background: var(--nx-ink); border: 1px solid var(--nx-ink); border-radius: 0; font: 500 .72rem/1 var(--nx-mono); letter-spacing: .08em; text-transform: uppercase; }

/* Footer */
footer { color: var(--nx-dark-text); background: var(--nx-dark); border-top: 1px solid rgba(255,255,255,.14); }
.footer-inner { max-width: var(--nx-max); margin: 0 auto; padding: clamp(1.5rem, 3vw, 2.5rem) var(--nx-pad) clamp(1rem, 2vw, 1.5rem); display: grid; grid-template-columns: 1.2fr .7fr 1fr; gap: 1.25rem; align-items: start; }
.footer-grad { color: var(--nx-dark-text); background: none; -webkit-text-fill-color: currentColor; font: 400 clamp(1.1rem, 2.5vw, 1.7rem)/1.2 var(--nx-serif); max-width: 18ch; }
.footer-socials { justify-content: flex-start; }
.social-btn { color: var(--nx-dark-muted); background: transparent; border: 1px solid rgba(255,255,255,.18); }
.footer-partner { justify-content: flex-start; margin: 0; }
.footer-partner img { max-height: 40px; width: auto; filter: grayscale(1) brightness(2); opacity: .78; }
.footer-bottom { grid-column: 1 / -1; margin-top: 1rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.14); color: var(--nx-dark-muted); font: .65rem/1.5 var(--nx-mono); letter-spacing: .05em; }
.footer-legal { display: block; margin-top: .45rem; }

/* Accessibility and motion */
:focus-visible { outline: 2px solid var(--nx-accent); outline-offset: 3px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

@media (max-width: 980px) {
  header[role='banner'] nav { gap: .65rem; }
  .nav-links { gap: 0; }
  .nav-links a { padding-inline: .35rem; font-size: .68rem; }
  .hero-shell, .system-intro, .project-grid { grid-template-columns: 1fr; }
  .hero-top { border-right: 0; border-bottom: 1px solid var(--nx-line); }
  .architectural-visual { min-height: 24rem; }
  .segments-wrap, .stack-grid, .why-grid { grid-template-columns: repeat(2, 1fr); }
  .audience-heading { grid-template-columns: .35fr 1fr; }
  .audience-heading p { grid-column: 2; }
  .manifesto-inner { grid-template-columns: .3fr 1fr; }
  .manifesto-copy { grid-column: 2; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-partner { grid-column: 2; grid-row: 1 / span 2; }
}

@media (max-width: 768px) {
  header[role='banner'] nav { min-height: 68px; padding-inline: 1rem; }
  .hamburger { display: flex; order: 3; margin-left: auto; }
  .nav-links {
    display: none;
    position: absolute;
    top: 68px; left: 0; right: 0;
    padding: 1rem;
    flex-direction: column;
    align-items: stretch;
    background: var(--nx-paper);
    border-bottom: 1px solid var(--nx-line);
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: .75rem 0; font-size: .78rem; }
  .lang-selector { display: none; }
  .lang-mobile { display: flex !important; }
  .theme-toggle { order: 2; width: 38px; height: 38px; }
  .nav-cta { display: none; }
  .hero { padding-top: 68px; }
  .hero-top { padding-top: 4rem; }
  .hero-top h1 { font-size: clamp(3.2rem, 15vw, 5.8rem); }
  .hero-proof { grid-template-columns: 1fr 1fr; }
  .hero-proof > div { border-top: 1px solid var(--nx-line); }
  .hero-proof > div:first-child { grid-column: 1 / -1; }
  .service-body { grid-template-columns: 3rem 1fr; }
  .service-body > p, .service-body .tags { grid-column: 2; }
  .audience-heading { grid-template-columns: 1fr; }
  .audience-heading p { grid-column: auto; }
  .video-row { grid-template-columns: 1fr; }
  .video-card + .video-card { border-left: 0; border-top: 1px solid rgba(255,255,255,.16); }
  .process-track { grid-template-columns: 1fr; }
  .process-step, .process-step + .process-step { padding: 1.25rem 0; border-right: 0; border-bottom: 1px solid var(--nx-line); }
  .step-circle { margin-bottom: .8rem; }
  .manifesto-inner { grid-template-columns: 1fr; }
  .manifesto-copy { grid-column: auto; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-partner { grid-column: auto; grid-row: auto; }
}

@media (max-width: 520px) {
  :root { --nx-pad: 1rem; }
  .nav-logo img { width: 108px; }
  .hero-shell, .project-grid { border-inline: 0; }
  .architectural-visual { min-height: 18rem; }
  .hero-proof { border-inline: 0; }
  .hero-proof > div { min-height: 82px; }
  .segments-wrap, .stack-grid, .why-grid { grid-template-columns: 1fr; }
  .service-row summary { grid-template-columns: 2.7rem 1fr auto; }
  .service-body { grid-template-columns: 1fr; }
  .service-body > p, .service-body .tags { grid-column: 1; }
  .project-metrics { grid-template-columns: 1fr; }
  .project-metrics div, .project-metrics div + div { padding: .9rem 0; border-right: 0; border-bottom: 1px solid var(--nx-line); }
  .contact-fields { grid-template-columns: 1fr; }
  .cta-box { padding-inline: 1.25rem; }
}