/* =========================================================
   CHERNIY — stage · expo · design
   Design system + Subtask 1 (header, hero, trust)
   ========================================================= */

/* ---------- Tokens ---------- */
:root{
  /* surfaces */
  --bg:        #000000;
  --bg-1:      #08080a;
  --bg-2:      #0e0e11;
  --bg-3:      #16161a;
  --line:      rgba(255,255,255,.10);
  --line-2:    rgba(255,255,255,.18);

  /* text */
  --text:      #ffffff;
  --text-dim:  rgba(255,255,255,.64);
  --text-mute: rgba(255,255,255,.42);

  /* neon accent */
  --neon:      #19e3ff;
  --neon-2:    #5af0ff;
  --neon-dim:  rgba(25,227,255,.16);
  --neon-glow: rgba(25,227,255,.45);

  /* type */
  --f-display: "Oswald", system-ui, sans-serif;
  --f-body:    "Manrope", system-ui, sans-serif;
  --f-mono:    "JetBrains Mono", ui-monospace, monospace;

  /* layout */
  --maxw: 1440px;
  --gut:  clamp(20px, 5vw, 64px);
  --radius: 4px;

  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- Reset / base ---------- */
*,*::before,*::after{ box-sizing:border-box; }
[hidden]{ display:none !important; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--f-body);
  font-size:16px;
  line-height:1.6;
  font-weight:400;
  letter-spacing:.005em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  /* base is plain black — texture/rhythm lives PER ZONE, not as one global tile */
  background:#000;
}

/* technical / spec micro-label */
.mono{ font-family:var(--f-mono); font-weight:400; letter-spacing:.02em; }
img,svg,video{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3{ margin:0; font-family:var(--f-display); font-weight:600; line-height:1.04; }
::selection{ background:var(--neon); color:#000; }

.container{ width:100%; max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gut); }

/* anchor offset for the fixed header */
section[id]{ scroll-margin-top:88px; }

/* ---------- Buttons ---------- */
.btn{
  --bg-btn:transparent;
  display:inline-flex; align-items:center; justify-content:center; gap:.5em;
  font-family:var(--f-display); font-weight:500; text-transform:uppercase;
  letter-spacing:.08em; font-size:.82rem;
  padding:.95em 1.6em; border:1px solid var(--line-2); border-radius:var(--radius);
  background:var(--bg-btn); color:var(--text);
  cursor:pointer; position:relative; isolation:isolate;
  transition:color .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease), transform .2s var(--ease);
}
.btn--lg{ padding:1.1em 2em; font-size:.9rem; }

.btn--neon{
  border-color:var(--neon);
  color:var(--neon);
  box-shadow:0 0 0 0 var(--neon-glow);
}
.btn--neon::before{
  content:""; position:absolute; inset:0; z-index:-1; border-radius:inherit;
  background:var(--neon); transform:scaleX(0); transform-origin:left;
  transition:transform .35s var(--ease);
}
.btn--neon:hover{ color:#000; border-color:var(--neon); box-shadow:0 0 28px -4px var(--neon-glow); }
.btn--neon:hover::before{ transform:scaleX(1); }

.btn--ghost{ color:var(--text); }
.btn--ghost:hover{ border-color:var(--text); background:rgba(255,255,255,.05); }

.btn:active{ transform:translateY(1px); }

/* ---------- Header ---------- */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:100;
  background:rgba(0,0,0,.55);
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease), border-color .3s var(--ease);
}
.site-header.is-scrolled{ background:rgba(0,0,0,.82); border-bottom-color:var(--line); }

.header__inner{ display:flex; align-items:center; justify-content:space-between; gap:24px; height:74px; }

.logo{ display:flex; flex-direction:column; line-height:1; }
.logo__mark{ font-family:var(--f-display); font-weight:700; font-size:1.45rem; letter-spacing:.16em; }
.logo__tag{ font-size:.6rem; letter-spacing:.42em; text-transform:uppercase; color:var(--text-mute); margin-top:5px; }

.nav{ display:flex; gap:34px; }
.nav a{
  font-family:var(--f-display); font-weight:500; text-transform:uppercase;
  letter-spacing:.1em; font-size:.82rem; color:var(--text-dim);
  position:relative; padding:4px 0;
  transition:color .25s var(--ease);
}
.nav a::after{
  content:""; position:absolute; left:0; bottom:-2px; width:100%; height:1px;
  background:var(--neon); transform:scaleX(0); transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav a:hover{ color:var(--text); }
.nav a:hover::after{ transform:scaleX(1); }

.header__cta{ display:flex; align-items:center; gap:22px; }
.header__phone{ font-family:var(--f-display); font-weight:500; letter-spacing:.04em; font-size:.95rem; white-space:nowrap; transition:color .25s; }
.header__phone:hover{ color:var(--neon); }

/* burger */
.burger{ display:none; flex-direction:column; gap:5px; width:42px; height:42px; align-items:center; justify-content:center;
  background:none; border:1px solid var(--line); border-radius:var(--radius); cursor:pointer; }
.burger span{ display:block; width:18px; height:2px; background:var(--text); transition:transform .3s var(--ease), opacity .3s; }
.burger[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.burger[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

.mobile-menu{
  display:flex; flex-direction:column; gap:4px; padding:18px var(--gut) 28px;
  background:#000; border-bottom:1px solid var(--line);
}
.mobile-menu a{ font-family:var(--f-display); text-transform:uppercase; letter-spacing:.08em; font-size:1rem; padding:14px 0; border-bottom:1px solid var(--line); color:var(--text-dim); }
.mobile-menu a:last-child{ border-bottom:none; margin-top:14px; }
.mobile-menu__phone{ color:var(--text)!important; }

/* ---------- Hero ---------- */
.hero{ position:relative; min-height:100svh; display:flex; align-items:center; padding-top:74px; overflow:hidden; }

.hero__bg{ position:absolute; inset:0; z-index:0; background:radial-gradient(ellipse 120% 90% at 50% -10%, #16161c 0%, #0a0a0c 45%, #000 100%); }
.hero__grid{
  position:absolute; inset:-2px;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(ellipse 100% 80% at 50% 30%, #000 25%, transparent 80%);
  -webkit-mask-image:radial-gradient(ellipse 100% 80% at 50% 30%, #000 25%, transparent 80%);
  opacity:.5;
}
/* stage-light beams */
.beam{ position:absolute; top:-20%; transform-origin:top center; mix-blend-mode:screen; filter:blur(8px); opacity:.5; pointer-events:none; }
.beam--1{ left:14%; width:230px; height:140%; background:linear-gradient(to bottom, var(--neon-glow), transparent 65%); transform:rotate(15deg); animation:sweep1 11s var(--ease) infinite alternate; }
.beam--2{ left:48%; width:300px; height:140%; background:linear-gradient(to bottom, rgba(255,255,255,.20), transparent 60%); transform:rotate(-6deg); animation:sweep2 14s var(--ease) infinite alternate; }
.beam--3{ right:12%; width:200px; height:140%; background:linear-gradient(to bottom, rgba(90,240,255,.30), transparent 62%); transform:rotate(-18deg); animation:sweep3 9s var(--ease) infinite alternate; }
@keyframes sweep1{ from{transform:rotate(12deg)} to{transform:rotate(20deg)} }
@keyframes sweep2{ from{transform:rotate(-9deg)} to{transform:rotate(-2deg)} }
@keyframes sweep3{ from{transform:rotate(-22deg)} to{transform:rotate(-13deg)} }
.hero__haze{ position:absolute; inset:auto 0 0 0; height:60%; background:radial-gradient(ellipse 80% 100% at 50% 100%, rgba(25,227,255,.10), transparent 70%); }
.hero__noise{
  position:absolute; inset:0; opacity:.05; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* registration brackets (engineering motif) */
.bracket{ position:absolute; width:46px; height:46px; z-index:3; opacity:.55; }
.bracket--tl{ left:22px; top:92px; border-left:1px solid var(--neon); border-top:1px solid var(--neon); }
.bracket--br{ right:22px; bottom:64px; border-right:1px solid var(--neon); border-bottom:1px solid var(--neon); }

.hero > .container{ max-width:1640px; }
.hero__inner{
  position:relative; z-index:2; width:100%;
  display:grid; grid-template-columns:1.25fr .85fr; gap:clamp(44px,5vw,104px); align-items:center;
  padding-block:clamp(40px,7vh,96px);
}
.hero__eyebrow{
  display:flex; align-items:center; gap:12px; flex-wrap:wrap;
  font-family:var(--f-display); text-transform:uppercase; letter-spacing:.22em;
  font-size:.74rem; color:var(--text-dim); margin:0 0 26px;
}
.hero__eyebrow .mono{ color:var(--neon); letter-spacing:.02em; text-transform:none; font-size:.78rem; }
.hero__title{
  font-size:clamp(2.4rem, 4.7vw, 5rem);
  line-height:1.05; text-transform:uppercase; letter-spacing:-.02em; font-weight:700;
}
.hero__title span{ display:block; white-space:nowrap; }
.hero__title-accent{ color:transparent; -webkit-text-stroke:1.4px var(--neon); text-stroke:1.4px var(--neon); }
.hero__lead{ margin:34px 0 0; max-width:52ch; font-size:clamp(1.05rem,1.15vw,1.28rem); color:var(--text-dim); }
.hero__actions{ display:flex; flex-wrap:wrap; gap:14px; margin-top:38px; }

/* showreel media frame */
.hero__media{ display:flex; flex-direction:column; gap:22px; }
.hero__reel{
  position:relative; aspect-ratio:16/9; border:1px solid var(--line-2); border-radius:var(--radius);
  background:
    repeating-linear-gradient(135deg, rgba(255,255,255,.025) 0 2px, transparent 2px 9px),
    linear-gradient(135deg, var(--bg-2), #05050a);
  display:flex; align-items:center; justify-content:center; overflow:hidden;
  transition:border-color .4s var(--ease);
}
.hero__reel:hover{ border-color:var(--neon); }
.dim{ position:absolute; left:14px; right:14px; top:10px; display:flex; align-items:center; gap:8px;
  font-family:var(--f-mono); font-size:.62rem; color:var(--text-mute); letter-spacing:.05em; }
.dim i{ flex:1; height:1px; background:var(--line); }
.reel__play{
  width:74px; height:74px; border-radius:50%; border:1px solid var(--neon); color:var(--neon);
  background:rgba(25,227,255,.08); display:grid; place-items:center; cursor:pointer;
  transition:transform .3s var(--ease), background .3s var(--ease), box-shadow .3s var(--ease);
}
.reel__play svg{ margin-left:3px; }
.reel__play:hover{ transform:scale(1.08); background:var(--neon); color:#000; box-shadow:0 0 40px -6px var(--neon-glow); }
.reel__cap{ position:absolute; left:14px; bottom:10px; font-size:.62rem; color:var(--text-mute); }

.hero__stats{ display:grid; grid-template-columns:repeat(3,1fr); gap:14px; }
.hero__stats li{ border-left:1px solid var(--line-2); padding-left:12px; display:flex; flex-direction:column; gap:4px; }
.hero__stats b{ font-family:var(--f-display); font-size:1.75rem; line-height:1; color:var(--text); }
.hero__stats span{ font-size:.72rem; color:var(--text-mute); line-height:1.3; }

/* bottom dimension ruler */
.hero__ruler{
  position:absolute; left:0; right:0; bottom:0; z-index:2;
  display:flex; justify-content:space-between; gap:10px; flex-wrap:wrap;
  padding:12px var(--gut); border-top:1px solid var(--line);
  background:linear-gradient(to top, rgba(0,0,0,.65), transparent);
  font-size:.6rem; letter-spacing:.16em; color:var(--text-mute); text-transform:uppercase;
}
.hero__ruler span{ position:relative; padding-left:14px; }
.hero__ruler span::before{ content:""; position:absolute; left:0; top:50%; transform:translateY(-50%); width:6px; height:6px; border:1px solid var(--neon); }

/* ---------- Marquee ---------- */
.marquee{ overflow:hidden; border-bottom:1px solid var(--line); background:rgba(8,8,10,.5); padding:16px 0; }
.marquee__track{ display:flex; align-items:center; gap:34px; width:max-content; animation:marq 28s linear infinite; }
.marquee__track span{ font-family:var(--f-display); text-transform:uppercase; letter-spacing:.06em; font-size:1.15rem; color:var(--text-dim); white-space:nowrap; }
.marquee__track i{ color:var(--neon); font-style:normal; }
@keyframes marq{ to{ transform:translateX(-50%); } }

/* ---------- Trust — ledger ---------- */
.trust{ border-top:1px solid var(--line); }
.trust__row{ display:flex; align-items:stretch; }

/* vertical side label */
.trust__label{
  writing-mode:vertical-rl; transform:rotate(180deg);
  display:flex; align-items:center; justify-content:center;
  flex:none; padding:20px 0; white-space:nowrap;
  color:var(--neon); font-size:.82rem; letter-spacing:.14em;
  border-right:1px solid var(--line); border-bottom:1px solid var(--line);
}

/* flex-wrap so cells always GROW to fill each row — no empty slot, flush edges at any width */
.trust__ledger{ display:flex; flex-wrap:wrap; flex:1; }
.trust__ledger li{
  flex:1 1 170px; display:flex; align-items:center; justify-content:center;
  padding:38px 24px; min-height:152px; position:relative;
  border-right:1px solid var(--line); border-bottom:1px solid var(--line);
  transition:background .3s var(--ease);
}
.trust__ledger li::after{
  content:""; position:absolute; left:0; top:0; width:2px; height:100%;
  background:var(--neon); transform:scaleY(0); transform-origin:top; transition:transform .3s var(--ease);
}
.trust__ledger li:hover{ background:var(--bg-2); }
.trust__ledger li:hover::after{ transform:scaleY(1); }
.trust__logo{
  height:48px; width:auto; color:var(--text-dim);
  transition:color .3s var(--ease), transform .3s var(--ease);
}
.trust__ledger li:hover .trust__logo{ color:var(--text); transform:translateY(-1px); }

/* ---------- Services — engineering index list ---------- */
.svc-list{ counter-reset:none; border-top:1px solid var(--line-2); }
.svc-row{
  position:relative; display:grid; align-items:center;
  grid-template-columns:96px minmax(240px,.9fr) 1.4fr 56px;
  gap:24px; padding:30px 8px; border-bottom:1px solid var(--line);
  overflow:hidden; cursor:default;
  transition:background .4s var(--ease), padding .4s var(--ease);
}
.svc-row::before{ /* neon left bar */
  content:""; position:absolute; left:0; top:0; width:3px; height:100%;
  background:var(--neon); transform:scaleY(0); transform-origin:top;
  transition:transform .4s var(--ease); box-shadow:0 0 18px var(--neon-glow);
}
.svc-row:hover{ background:linear-gradient(90deg, var(--bg-2), transparent 80%); padding-left:26px; }
.svc-row:hover::before{ transform:scaleY(1); }
.svc-row__no{ font-size:.85rem; color:var(--text-mute); transition:color .4s var(--ease); }
.svc-row:hover .svc-row__no{ color:var(--neon); }
.svc-row__title{
  font-size:clamp(1.4rem,2.8vw,2.4rem); text-transform:uppercase; letter-spacing:-.01em;
  transition:transform .4s var(--ease), color .4s var(--ease);
}
.svc-row:hover .svc-row__title{ transform:translateX(8px); }
.svc-row__desc{ color:var(--text-dim); font-size:.96rem; max-width:46ch;
  opacity:.5; transition:opacity .4s var(--ease); }
.svc-row:hover .svc-row__desc{ opacity:1; }
.svc-row__ghost{
  position:absolute; right:64px; top:50%; transform:translateY(-50%) translateX(40px);
  font-family:var(--f-display); font-weight:700; font-size:7rem; line-height:1;
  color:transparent; -webkit-text-stroke:1px rgba(25,227,255,.35); text-stroke:1px rgba(25,227,255,.35);
  opacity:0; pointer-events:none; transition:opacity .45s var(--ease), transform .45s var(--ease);
}
.svc-row:hover .svc-row__ghost{ opacity:1; transform:translateY(-50%) translateX(0); }
.svc-row__arrow{
  justify-self:end; font-size:1.5rem; color:var(--text-mute);
  transition:color .35s var(--ease), transform .35s var(--ease);
}
.svc-row:hover .svc-row__arrow{ color:var(--neon); transform:translate(4px,-4px); }

/* ---------- Directions — mosaic map ---------- */
.dir-grid{ display:grid; grid-template-columns:repeat(12,1fr); gap:14px; }
.dir--12{ grid-column:span 12; min-height:150px; }
.dir--7{ grid-column:span 7; min-height:280px; }
.dir--5{ grid-column:span 5; min-height:280px; }
.dir--4{ grid-column:span 4; min-height:230px; }
.dir{
  position:relative; overflow:hidden; padding:26px;
  border:1px solid var(--line); border-radius:var(--radius);
  background:
    repeating-linear-gradient(0deg, rgba(255,255,255,.02) 0 1px, transparent 1px 26px),
    linear-gradient(150deg, var(--bg-2), #050507);
  display:flex; flex-direction:column; justify-content:space-between; gap:18px;
  transition:border-color .4s var(--ease), transform .4s var(--ease);
}
.dir:hover{ border-color:var(--neon); transform:translateY(-3px); }
.dir__scan{ /* neon scanline sweep on hover */
  position:absolute; left:0; right:0; top:-2px; height:2px; background:var(--neon);
  box-shadow:0 0 16px var(--neon-glow); opacity:0; transform:translateY(0);
}
.dir:hover .dir__scan{ animation:scan 1.1s var(--ease); }
@keyframes scan{ 0%{opacity:0; transform:translateY(0);} 12%{opacity:1;} 100%{opacity:0; transform:translateY(280px);} }
.dir__no{ font-size:.7rem; color:var(--text-mute); align-self:flex-start; }
.dir:hover .dir__no{ color:var(--neon); }
.dir h3{ font-size:clamp(1.3rem,2.3vw,2rem); text-transform:uppercase; letter-spacing:-.01em; position:relative; z-index:1; }
.dir__meta{ font-size:.66rem; color:var(--text-mute); letter-spacing:.04em; }
.dir--12{ flex-direction:row; align-items:center; justify-content:space-between; }
.dir--12 h3{ flex:1; }

/* ---------- Section primitives ---------- */
.section{ padding:clamp(64px,11vh,140px) 0; position:relative; isolation:isolate; }

/* =========================================================
   BACKGROUND ZONE SYSTEM
   Goal: vertical rhythm (value light/dark) + a DIFFERENT motif
   per block, each concentrated & dissolved (not a uniform tile).
   Each motif = ::before (texture, masked) ; depth/value = bg + edges.
   ========================================================= */

/* — value layer: a raised charcoal panel for "lit" zones — */
.zone-raised{
  position:relative; isolation:isolate;
  background:linear-gradient(180deg, #0d0d11 0%, #090909 100%);
  border-block:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04), inset 0 40px 80px -60px rgba(25,227,255,.18);
}

/* — accent: ONE real stage-light glow, only where called — */
.zone-glow::after{
  content:""; position:absolute; z-index:-1; pointer-events:none;
  width:55vw; height:55vw; max-width:760px; max-height:760px; border-radius:50%;
  filter:blur(120px); opacity:.18;
  background:radial-gradient(circle, var(--neon), transparent 66%);
}
.zone-glow.glow-l::after{ left:-16vw; top:18%; }
.zone-glow.glow-r::after{ right:-16vw; bottom:6%; background:radial-gradient(circle, var(--neon-2), transparent 66%); }

/* — MOTIF A · blueprint grid, condensed top-left, dissolving down — */
.motif-grid::before{
  content:""; position:absolute; inset:0; z-index:-1; pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:radial-gradient(ellipse 75% 75% at 14% -10%, #000 0%, rgba(0,0,0,.35) 45%, transparent 72%);
  mask-image:radial-gradient(ellipse 75% 75% at 14% -10%, #000 0%, rgba(0,0,0,.35) 45%, transparent 72%);
}

/* — MOTIF B · dot matrix, fading from the right edge — */
.motif-dots::before{
  content:""; position:absolute; inset:0; z-index:-1; pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.13) 1.1px, transparent 1.6px);
  background-size:24px 24px;
  -webkit-mask-image:linear-gradient(90deg, transparent, #000 75%);
  mask-image:linear-gradient(90deg, transparent, #000 75%);
}

/* — MOTIF C · diagonal hatch, concentrated bottom-right — */
.motif-hatch::before{
  content:""; position:absolute; inset:0; z-index:-1; pointer-events:none;
  background-image:repeating-linear-gradient(135deg, rgba(255,255,255,.045) 0 1px, transparent 1px 13px);
  -webkit-mask-image:radial-gradient(ellipse 80% 80% at 100% 100%, #000 0%, transparent 65%);
  mask-image:radial-gradient(ellipse 80% 80% at 100% 100%, #000 0%, transparent 65%);
}

/* — MOTIF D · concentric contour rings (topographic), one corner — */
.motif-contour::before{
  content:""; position:absolute; inset:0; z-index:-1; pointer-events:none;
  background-image:repeating-radial-gradient(circle at 90% 12%, transparent 0 38px, rgba(25,227,255,.06) 38px 39px);
  -webkit-mask-image:radial-gradient(circle at 90% 12%, #000 0%, transparent 55%);
  mask-image:radial-gradient(circle at 90% 12%, #000 0%, transparent 55%);
}

/* — MOTIF E · horizontal scanlines (screen/video feel), fade top+bottom — */
.motif-scan::before{
  content:""; position:absolute; inset:0; z-index:-1; pointer-events:none;
  background-image:repeating-linear-gradient(0deg, rgba(255,255,255,.04) 0 1px, transparent 1px 6px);
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 80% 50%, #000 0%, transparent 75%);
  mask-image:radial-gradient(ellipse 90% 70% at 80% 50%, #000 0%, transparent 75%);
}

/* — MOTIF F · registration crosshair "+" marks on a grid, fade from top — */
.motif-cross::before{
  content:""; position:absolute; inset:0; z-index:-1; pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='110' height='110'%3E%3Cg stroke='%23ffffff' stroke-opacity='0.22' stroke-width='1'%3E%3Cline x1='55' y1='48' x2='55' y2='62'/%3E%3Cline x1='48' y1='55' x2='62' y2='55'/%3E%3C/g%3E%3C/svg%3E");
  background-size:110px 110px;
  -webkit-mask-image:radial-gradient(ellipse 85% 90% at 50% 0%, #000 0%, transparent 72%);
  mask-image:radial-gradient(ellipse 85% 90% at 50% 0%, #000 0%, transparent 72%);
}

/* — zone divider: dimension line with a neon node, between blocks — */
.zone-rule{ position:relative; }
.zone-rule::before{
  content:""; position:absolute; left:var(--gut); right:var(--gut); top:0; height:1px;
  background:linear-gradient(90deg, var(--neon-glow), var(--line) 18%, var(--line));
  -webkit-mask-image:linear-gradient(90deg,#000,#000 60%,transparent);
  mask-image:linear-gradient(90deg,#000,#000 60%,transparent);
}
.zone-rule::after{
  content:""; position:absolute; left:var(--gut); top:-3px; width:7px; height:7px;
  background:var(--neon); box-shadow:0 0 12px var(--neon-glow);
}

.section__head{ max-width:62ch; margin-bottom:clamp(40px,6vw,72px); padding-top:34px; position:relative; }
/* giant ghost watermark sitting behind the heading */
.section__head::after{
  content:attr(data-ghost); position:absolute; right:0; top:-26px; z-index:-1;
  font-family:var(--f-display); font-weight:700; font-size:clamp(5rem,16vw,13rem); line-height:.8;
  color:transparent; -webkit-text-stroke:1px rgba(255,255,255,.045); text-stroke:1px rgba(255,255,255,.045);
  letter-spacing:-.02em; pointer-events:none; white-space:nowrap;
}
.section__eyebrow{
  font-family:var(--f-display); text-transform:uppercase; letter-spacing:.32em;
  font-size:.72rem; color:var(--neon); margin:0 0 18px;
  display:inline-flex; align-items:center; gap:12px;
}
.section__eyebrow::before{ content:""; width:34px; height:1px; background:var(--neon); }
.section__eyebrow .mono{ color:var(--neon); font-size:.82rem; letter-spacing:0; }
.section__title{ font-size:clamp(2rem,4.6vw,3.6rem); text-transform:uppercase; letter-spacing:-.01em; }
.section__lead{ margin:24px 0 0; color:var(--text-dim); font-size:clamp(1rem,1.3vw,1.15rem); max-width:56ch; }

/* ---------- Quiz ---------- */
.quiz-box{
  position:relative; border:1px solid var(--line-2); border-radius:var(--radius);
  background:linear-gradient(180deg, rgba(20,20,24,.7), rgba(6,6,8,.8));
  padding:clamp(24px,3.4vw,48px); min-height:360px;
  display:flex; flex-direction:column;
}
.quiz-box::before, .quiz-box::after{ /* corner brackets */
  content:""; position:absolute; width:18px; height:18px; pointer-events:none;
}
.quiz-box::before{ left:-1px; top:-1px; border-left:2px solid var(--neon); border-top:2px solid var(--neon); }
.quiz-box::after{ right:-1px; bottom:-1px; border-right:2px solid var(--neon); border-bottom:2px solid var(--neon); }

.quiz-form{ display:flex; flex-direction:column; flex:1; }
.q-step{ border:0; padding:0; margin:0; min-width:0; }
.q-step[hidden]{ display:none; }
.q-step.is-active{ animation:qfade .45s var(--ease); }
@keyframes qfade{ from{ opacity:0; transform:translateX(14px);} to{ opacity:1; transform:none;} }
.q-q{
  font-family:var(--f-display); text-transform:uppercase; letter-spacing:.01em;
  font-size:clamp(1.3rem,2.4vw,1.9rem); margin-bottom:26px; display:flex; align-items:baseline; gap:12px; flex-wrap:wrap;
}
.q-q .mono{ font-size:.7rem; color:var(--neon); text-transform:none; letter-spacing:.02em; }
.q-opts{ display:grid; grid-template-columns:repeat(2,1fr); gap:12px; }
.q-opt{
  text-align:left; padding:18px 20px; background:var(--bg-2); color:var(--text-dim);
  border:1px solid var(--line); border-radius:var(--radius); cursor:pointer;
  font-family:var(--f-body); font-size:1rem; position:relative;
  transition:border-color .25s var(--ease), color .25s var(--ease), background .25s var(--ease), transform .15s var(--ease);
}
.q-opt::after{ content:""; position:absolute; right:16px; top:50%; transform:translateY(-50%);
  width:16px; height:16px; border:1px solid var(--line-2); border-radius:3px; transition:all .25s var(--ease); }
.q-opt:hover{ border-color:var(--line-2); color:var(--text); transform:translateY(-2px); }
.q-opt[aria-pressed="true"]{ border-color:var(--neon); color:#000; background:var(--neon); }
.q-opt[aria-pressed="true"]::after{ background:#000; border-color:#000; content:"✓"; display:grid; place-items:center; color:var(--neon); font-size:.7rem; }

.q-fields{ display:flex; flex-direction:column; gap:18px; max-width:520px; }
.q-field{ display:flex; flex-direction:column; gap:8px; }
.q-field span{ font-family:var(--f-display); text-transform:uppercase; letter-spacing:.08em; font-size:.72rem; color:var(--text-dim); }
.q-field input{
  background:var(--bg-2); border:1px solid var(--line); border-radius:var(--radius);
  padding:15px 16px; color:var(--text); font-family:var(--f-body); font-size:1rem; min-height:48px;
  transition:border-color .25s var(--ease); width:100%;
}
.q-field input:focus{ outline:none; border-color:var(--neon); box-shadow:0 0 0 3px var(--neon-dim); }
.q-field input.is-invalid{ border-color:#ff4d4d; }
.q-note{ font-size:.66rem; color:var(--text-mute); margin:2px 0 0; }

.quiz-foot{ margin-top:auto; padding-top:30px; display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap; }
.quiz-progress{ display:flex; align-items:center; gap:14px; flex:1; min-width:180px; }
.quiz-step-label{ font-size:.72rem; color:var(--text-mute); white-space:nowrap; }
.quiz-bar{ flex:1; height:2px; background:var(--line); position:relative; overflow:hidden; }
.quiz-bar i{ position:absolute; left:0; top:0; height:100%; width:20%; background:var(--neon); box-shadow:0 0 10px var(--neon-glow); transition:width .4s var(--ease); }
.quiz-nav{ display:flex; gap:12px; }

.quiz-done{ text-align:center; margin:auto; max-width:560px; display:flex; flex-direction:column; align-items:center; gap:14px; animation:qfade .5s var(--ease); }
.quiz-done__ic{ width:60px; height:60px; border-radius:50%; border:1px solid var(--neon); color:var(--neon); display:grid; place-items:center; font-size:1.6rem; }
.quiz-done h3{ font-size:1.8rem; text-transform:uppercase; }
.quiz-done p{ color:var(--text-dim); margin:0; }
.quiz-summary{
  width:100%; text-align:left; background:var(--bg); border:1px solid var(--line); border-radius:var(--radius);
  padding:16px; font-size:.78rem; color:var(--text-dim); white-space:pre-wrap; margin:4px 0 6px;
}

/* ---------- Works / portfolio ---------- */
.section__head--row{ max-width:none; display:flex; align-items:flex-end; justify-content:space-between; gap:40px; }
.section__head--row .section__lead{ margin:0; max-width:38ch; }

.work-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:14px; grid-auto-flow:dense; }
.work{
  position:relative; margin:0; overflow:hidden; border-radius:var(--radius);
  border:1px solid var(--line); background:linear-gradient(135deg, var(--bg-3), #060608);
  min-height:220px; aspect-ratio:1/1; cursor:pointer;
  transition:border-color .4s var(--ease), transform .4s var(--ease);
}
.work--xl{ grid-column:span 2; grid-row:span 2; aspect-ratio:auto; }
.work--tall{ grid-row:span 2; aspect-ratio:3/4; }
.work--wide{ grid-column:span 2; aspect-ratio:16/9; }
.work::before{ /* media placeholder hatch */
  content:""; position:absolute; inset:0;
  background:repeating-linear-gradient(135deg, rgba(255,255,255,.02) 0 2px, transparent 2px 11px);
}
.work__plus{ position:absolute; inset:0; }
.work__plus::before, .work__plus::after{
  content:""; position:absolute; left:50%; top:45%; background:var(--text-mute);
  transition:background .4s var(--ease), transform .5s var(--ease);
}
.work__plus::before{ width:26px; height:1px; transform:translate(-50%,-50%); }
.work__plus::after{ width:1px; height:26px; transform:translate(-50%,-50%); }
.work:hover{ border-color:var(--neon); transform:translateY(-3px); }
.work:hover .work__plus::before, .work:hover .work__plus::after{ background:var(--neon); }
.work:hover .work__plus::before{ transform:translate(-50%,-50%) rotate(90deg); }
.work__cap{
  position:absolute; inset:auto 0 0 0; padding:18px; z-index:1;
  display:flex; flex-direction:column; gap:3px;
  background:linear-gradient(to top, rgba(0,0,0,.82), transparent);
}
.work__cap .mono{ font-size:.62rem; color:var(--neon); }
.work__cap b{ font-family:var(--f-display); text-transform:uppercase; font-size:1.05rem; letter-spacing:.01em; }
.work__cap em{ font-style:normal; font-size:.78rem; color:var(--text-mute); }

.works__more{
  display:inline-flex; align-items:center; gap:10px; margin-top:34px;
  font-family:var(--f-display); text-transform:uppercase; letter-spacing:.08em; font-size:.92rem;
  border-bottom:1px solid var(--line-2); padding-bottom:6px; transition:color .3s var(--ease), border-color .3s var(--ease); }
.works__more:hover{ color:var(--neon); border-color:var(--neon); }
.works__more span{ transition:transform .3s var(--ease); }
.works__more:hover span{ transform:translate(3px,-3px); }

/* ---------- Video timelapses ---------- */
.video-wrap{ display:grid; grid-template-columns:1.5fr 1fr; gap:18px; align-items:stretch; }
.vid-feature{
  position:relative; margin:0; aspect-ratio:16/9; border:1px solid var(--line-2); border-radius:var(--radius);
  background:repeating-linear-gradient(135deg, rgba(255,255,255,.025) 0 2px, transparent 2px 9px), linear-gradient(135deg, var(--bg-2), #05050a);
  display:flex; align-items:center; justify-content:center; overflow:hidden;
  transition:border-color .4s var(--ease);
}
.vid-feature:hover{ border-color:var(--neon); }
.vid-feature__cap{ position:absolute; left:14px; bottom:10px; font-size:.62rem; color:var(--text-mute); }

.vid-list{ display:flex; flex-direction:column; gap:12px; }
.tl{
  flex:1; display:flex; align-items:center; gap:16px; padding:16px;
  border:1px solid var(--line); border-radius:var(--radius); background:var(--bg-2);
  cursor:pointer; transition:border-color .3s var(--ease), background .3s var(--ease), transform .3s var(--ease);
}
.tl:hover{ border-color:var(--neon); background:var(--bg-3); transform:translateX(4px); }
.tl__thumb{
  flex:none; width:46px; height:46px; display:grid; place-items:center;
  border:1px solid var(--line-2); border-radius:50%; color:var(--neon);
  transition:background .3s var(--ease), color .3s var(--ease);
}
.tl:hover .tl__thumb{ background:var(--neon); color:#000; }
.tl__meta{ display:flex; flex-direction:column; gap:3px; }
.tl__meta b{ font-family:var(--f-display); text-transform:uppercase; font-size:1rem; letter-spacing:.01em; }
.tl__meta .mono{ font-size:.66rem; color:var(--text-mute); }

/* ---------- Process flow ---------- */
.flow{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.step{
  position:relative; background:rgba(6,6,8,.86); padding:clamp(26px,2.6vw,40px);
  min-height:210px; display:flex; flex-direction:column; transition:background .4s var(--ease); overflow:hidden;
}
.step::after{ content:""; position:absolute; left:0; bottom:0; width:100%; height:2px;
  background:var(--neon); transform:scaleX(0); transform-origin:left; transition:transform .4s var(--ease); box-shadow:0 0 16px var(--neon-glow); }
.step:hover{ background:var(--bg-2); }
.step:hover::after{ transform:scaleX(1); }
.step__no{ font-size:1rem; color:var(--neon); letter-spacing:.1em; }
.step h3{ font-size:1.45rem; text-transform:uppercase; margin:auto 0 12px; }
.step p{ margin:0; color:var(--text-dim); font-size:.92rem; }

/* ---------- Contacts ---------- */
/* reuse the hero atmosphere as the closing screen background */
.contacts{ overflow:hidden; }
.contacts__bg{ z-index:-1; }
.contacts .container{ position:relative; z-index:1; }
.contacts-grid{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(28px,5vw,72px); align-items:center; }
.contacts-cta{ display:flex; flex-direction:column; gap:14px; align-items:flex-start; }
.contacts-cta .btn{ width:100%; max-width:340px; }
.contacts-list{ display:flex; flex-direction:column; }
.cline{
  display:flex; align-items:baseline; justify-content:space-between; gap:20px; flex-wrap:wrap;
  padding:24px 4px; border-top:1px solid var(--line); position:relative;
}
.contacts-list .cline:last-child{ border-bottom:1px solid var(--line); }
.cline::after{ content:""; position:absolute; left:0; bottom:-1px; width:0; height:1px; background:var(--neon); transition:width .4s var(--ease); box-shadow:0 0 12px var(--neon-glow); }
.cline:hover::after{ width:100%; }
.cline__k{ font-size:.74rem; color:var(--text-mute); }
.cline__v{ font-family:var(--f-display); font-size:clamp(1.4rem,3vw,2.1rem); text-transform:uppercase; letter-spacing:.01em; transition:color .3s var(--ease); }
.cline:hover .cline__v{ color:var(--neon); }

/* ---------- Footer ---------- */
.footer{ border-top:1px solid var(--line); background:linear-gradient(180deg, #060608, #000); padding:clamp(48px,7vw,80px) 0 30px; position:relative; }
.footer__top{ display:grid; grid-template-columns:1.6fr 1fr 1fr; gap:40px; padding-bottom:48px; border-bottom:1px solid var(--line); }
.footer__brand .logo__mark{ font-family:var(--f-display); font-weight:700; font-size:1.6rem; letter-spacing:.16em; display:block; }
.footer__brand .logo__tag{ font-size:.62rem; letter-spacing:.42em; text-transform:uppercase; color:var(--text-mute); display:block; margin-top:6px; }
.footer__desc{ color:var(--text-dim); font-size:.92rem; margin:20px 0 0; max-width:44ch; }
.footer__nav, .footer__contacts{ display:flex; flex-direction:column; gap:13px; }
.footer__h{ font-size:.68rem; color:var(--neon); margin-bottom:6px; }
.footer__nav a, .footer__contacts a{ color:var(--text-dim); font-size:.96rem; width:fit-content; transition:color .25s var(--ease); }
.footer__nav a:hover, .footer__contacts a:hover{ color:var(--text); }
.footer__bot{ display:flex; align-items:center; justify-content:space-between; gap:16px; padding-top:24px; font-size:.84rem; color:var(--text-mute); flex-wrap:wrap; }
.footer__up{ font-family:var(--f-display); text-transform:uppercase; letter-spacing:.08em; font-size:.8rem; transition:color .25s var(--ease); }
.footer__up:hover{ color:var(--neon); }

/* ---------- Reveal animation ---------- */
.reveal{ opacity:0; transform:translateY(26px); }
.reveal.is-in{
  opacity:1; transform:none;
  transition:opacity .7s var(--ease), transform .7s var(--ease);
  transition-delay:calc(var(--d, 0) * 90ms);
}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .nav, .header__cta{ display:none; }
  .burger{ display:flex; }
  .hero__inner{ grid-template-columns:1fr; gap:40px; padding-block:90px 70px; }
  .hero__media{ order:2; }
  .bracket{ display:none; }
  .dir--12,.dir--7,.dir--5,.dir--4{ grid-column:span 6; }
  .svc-row__ghost{ display:none; }
  .section__head--row{ flex-direction:column; align-items:flex-start; gap:18px; }
  .work-grid{ grid-template-columns:repeat(2,1fr); }
  .work--xl{ grid-column:span 2; grid-row:auto; aspect-ratio:16/9; }
  .work--wide{ grid-column:span 2; }
  .work--tall{ grid-row:auto; aspect-ratio:1/1; }
  .video-wrap{ grid-template-columns:1fr; }
  .flow{ grid-template-columns:repeat(2,1fr); }
  .contacts-grid{ grid-template-columns:1fr; gap:32px; }
  .footer__top{ grid-template-columns:1fr 1fr; gap:32px; }
  .footer__brand{ grid-column:1 / -1; }
}
@media (min-width:901px){
  .mobile-menu{ display:none!important; }
}
@media (max-width:560px){
  .header__inner{ height:64px; }
  .hero__title{ -webkit-text-stroke-width:1px; font-size:clamp(1.8rem,8.5vw,2.6rem); }
  .hero__title span{ white-space:normal; }
  .hero__ruler{ display:none; }
  .hero__stats{ grid-template-columns:1fr; }
  .hero__stats li{ flex-direction:row; align-items:baseline; gap:10px; }
  .trust__row{ flex-direction:column; }
  .trust__label{ writing-mode:horizontal-tb; transform:none; flex:auto; justify-content:flex-start; padding:16px 0; border-right:none; }
  .trust__ledger li{ min-height:120px; padding:28px 20px; }
  .dir--12,.dir--7,.dir--5,.dir--4{ grid-column:span 12; min-height:170px; }
  .svc-row{ grid-template-columns:48px 1fr; gap:6px 16px; padding:22px 6px; }
  .svc-row__desc{ grid-column:2; opacity:.7; }
  .svc-row__arrow{ display:none; }
  .work-grid{ grid-template-columns:1fr; }
  .work--xl,.work--wide{ grid-column:span 1; }
  .flow{ grid-template-columns:1fr; }
  .footer__top{ grid-template-columns:1fr; }
  .q-opts{ grid-template-columns:1fr; }
  .quiz-foot{ flex-direction:column-reverse; align-items:stretch; }
  .quiz-nav{ justify-content:space-between; }
  .quiz-nav .btn{ flex:1; }
  .contacts-cta .btn{ max-width:none; }
}

@media (prefers-reduced-motion:reduce){
  *{ animation:none!important; scroll-behavior:auto; }
  .reveal{ opacity:1; transform:none; }
  .marquee__track{ transform:none; }
}