/* =========================================================
   ERKHO SIDER — Immersive scroll (Hubtown-style)
   Palette: deep steel-navy + brushed silver + electric cyan
   ========================================================= */

:root{
  --bg:#070a0f;
  --bg-2:#0c1119;
  --ink:#eaf1f8;
  --ink-dim:#8a99ab;
  --steel:#aebccb;
  --line:rgba(174,188,203,.14);
  --accent:#3da9fc;
  --accent-2:#5fd0ff;
  --hot:#ff7a3d;
  --max:1320px;
  --ease:cubic-bezier(.16,1,.3,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:"Space Grotesk",system-ui,sans-serif;
  font-weight:400;
  overflow-x:hidden;
  cursor:none;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
::selection{background:var(--accent);color:#001018}

/* Lenis */
html.lenis,html.lenis body{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto!important}

/* ---------- shared type ---------- */
.eyebrow{
  display:inline-block;font-size:.72rem;letter-spacing:.32em;text-transform:uppercase;
  color:var(--accent-2);font-weight:600;
}
.eyebrow::before{content:"";display:inline-block;width:26px;height:1px;background:var(--accent);
  vertical-align:middle;margin-right:12px;transform:translateY(-3px)}

/* =========================================================
   OVERLAYS
   ========================================================= */
.grain{
  position:fixed;inset:0;z-index:9000;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation:grain 6s steps(6) infinite;
}
@keyframes grain{0%{transform:translate(0,0)}20%{transform:translate(-4%,3%)}40%{transform:translate(3%,-2%)}60%{transform:translate(-2%,4%)}80%{transform:translate(4%,2%)}100%{transform:translate(0,0)}}
.vignette{position:fixed;inset:0;z-index:8999;pointer-events:none;
  box-shadow:inset 0 0 240px 40px rgba(0,0,0,.65)}

/* =========================================================
   CUSTOM CURSOR
   ========================================================= */
.cursor{position:fixed;top:0;left:0;z-index:10000;pointer-events:none;mix-blend-mode:difference}
.cursor__dot{position:fixed;width:7px;height:7px;border-radius:50%;background:#fff;
  transform:translate(-50%,-50%)}
.cursor__ring{position:fixed;width:42px;height:42px;border:1px solid rgba(255,255,255,.6);
  border-radius:50%;transform:translate(-50%,-50%);transition:width .3s var(--ease),height .3s var(--ease),background .3s}
.cursor__label{position:fixed;transform:translate(-50%,-50%);font-size:.66rem;letter-spacing:.18em;
  text-transform:uppercase;color:#fff;opacity:0;white-space:nowrap}
body.cursor-hover .cursor__ring{width:70px;height:70px;background:rgba(255,255,255,.08)}
body.cursor-hover .cursor__label{opacity:1}
@media (hover:none){.cursor{display:none}body{cursor:auto}}

/* =========================================================
   SCROLL PROGRESS
   ========================================================= */
.progress{position:fixed;top:0;left:0;width:100%;height:3px;z-index:8000;background:transparent}
.progress__bar{display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));box-shadow:0 0 12px var(--accent)}

/* =========================================================
   PRELOADER
   ========================================================= */
.preloader{position:fixed;inset:0;z-index:9500;background:var(--bg);
  display:grid;place-items:center}
.preloader__inner{display:flex;flex-direction:column;align-items:center;gap:22px;width:min(86vw,420px)}
.coil{width:120px;height:120px}
.coil__rings circle{transform-origin:100px 100px}
.preloader__brand{font-family:"Anton",sans-serif;font-size:2rem;letter-spacing:.12em;color:var(--ink)}
.preloader__brand span{color:var(--accent)}
.preloader__meta{display:flex;justify-content:space-between;width:100%;font-size:.74rem;
  letter-spacing:.2em;text-transform:uppercase;color:var(--ink-dim)}
.preloader__pct{color:var(--accent-2);font-variant-numeric:tabular-nums}
.preloader__track{width:100%;height:2px;background:var(--line);overflow:hidden}
.preloader__fill{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent-2))}
.preloader--done{pointer-events:none}

/* =========================================================
   NAV
   ========================================================= */
.nav{position:fixed;top:0;left:0;width:100%;z-index:7000;display:flex;align-items:center;
  justify-content:space-between;padding:22px clamp(20px,4vw,56px);
  transition:transform .5s var(--ease),background .4s,padding .4s;mix-blend-mode:difference}
.nav--hidden{transform:translateY(-110%)}
.nav__logo img{height:22px;width:auto;filter:invert(1) brightness(2)}
.nav__links{display:flex;gap:34px}
.nav__links a{font-size:.82rem;letter-spacing:.06em;color:var(--ink);position:relative}
.nav__links a::after{content:"";position:absolute;left:0;bottom:-5px;width:0;height:1px;
  background:currentColor;transition:width .4s var(--ease)}
.nav__links a:hover::after{width:100%}
.nav__cta{font-size:.82rem;border:1px solid rgba(255,255,255,.4);padding:9px 18px;border-radius:40px;
  transition:background .3s,color .3s}
.nav__cta:hover{background:#fff;color:#000}
.nav__burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:none}
.nav__burger span{width:26px;height:2px;background:var(--ink);transition:.3s}
@media (max-width:860px){
  .nav__links,.nav__cta{display:none}
  .nav__burger{display:flex}
}

/* fullscreen menu */
.menu{position:fixed;inset:0;z-index:6900;background:var(--bg-2);
  display:flex;flex-direction:column;justify-content:center;padding:0 clamp(24px,8vw,120px);
  clip-path:inset(0 0 100% 0);transition:clip-path .7s var(--ease)}
.menu--open{clip-path:inset(0 0 0 0)}
.menu__list{list-style:none;display:flex;flex-direction:column;gap:6px}
.menu__list a{font-family:"Anton",sans-serif;font-size:clamp(2rem,7vw,4.6rem);color:var(--ink);
  letter-spacing:.02em;opacity:.55;transition:opacity .3s,color .3s,padding-left .4s}
.menu__list a:hover{opacity:1;color:var(--accent-2);padding-left:18px}
.menu__foot{margin-top:48px;display:flex;gap:30px;flex-wrap:wrap;color:var(--ink-dim);
  font-size:.78rem;letter-spacing:.1em}

/* =========================================================
   HERO
   ========================================================= */
.hero{position:relative;height:100vh;min-height:640px;overflow:hidden;display:flex;align-items:flex-end}
.hero__media{position:absolute;inset:-8% 0 0 0;height:116%;will-change:transform}
.hero__media img{width:100%;height:100%;object-fit:cover;filter:saturate(.9) contrast(1.05)}
.sparks{position:absolute;inset:0;width:100%;height:100%;mix-blend-mode:screen;opacity:.8}
.hero__overlay{position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,15,.55) 0%,rgba(7,10,15,.1) 35%,rgba(7,10,15,.85) 100%)}
.hero__content{position:relative;z-index:2;padding:0 clamp(20px,4vw,56px) clamp(40px,8vh,90px);max-width:var(--max)}
.hero__title{font-family:"Anton",sans-serif;line-height:.86;letter-spacing:.01em;
  font-size:clamp(4rem,17vw,15rem);margin:14px 0 22px}
.hero__title .line{display:block;overflow:hidden}
.hero__title .line span{display:block;transform:translateY(110%)}
.hero__title .line:nth-child(2) span{color:var(--accent)}
.hero__sub{max-width:560px;font-size:clamp(1rem,1.5vw,1.35rem);color:var(--steel);line-height:1.5}
.hero__sub em{color:var(--ink);font-style:normal}
.hero__coords{margin-top:20px;font-size:.74rem;letter-spacing:.28em;color:var(--ink-dim)}
.hero__scroll{position:absolute;bottom:30px;right:clamp(20px,4vw,56px);z-index:3;
  display:flex;align-items:center;gap:12px;font-size:.7rem;letter-spacing:.24em;text-transform:uppercase;color:var(--ink-dim)}
.hero__scroll i{width:1px;height:46px;background:var(--ink-dim);position:relative;overflow:hidden}
.hero__scroll i::after{content:"";position:absolute;top:-46px;left:0;width:100%;height:46px;
  background:var(--accent-2);animation:scrolldown 1.8s var(--ease) infinite}
@keyframes scrolldown{0%{top:-46px}60%,100%{top:46px}}

/* =========================================================
   MANIFESTO
   ========================================================= */
.manifesto{min-height:80vh;display:grid;place-items:center;padding:18vh clamp(24px,6vw,120px)}
.manifesto__text{max-width:1100px;font-size:clamp(1.6rem,4.4vw,4rem);line-height:1.18;font-weight:500;
  letter-spacing:-.01em}
.manifesto__text .word{display:inline-block;opacity:.12;transition:opacity .3s}

/* =========================================================
   STORY (E·R·K·H·O narrative)
   ========================================================= */
.story{position:relative}
.story__stage{position:sticky;top:0;height:100vh;pointer-events:none;z-index:1;overflow:hidden}
.story__coil{position:absolute;top:50%;left:50%;width:min(120vh,120vw);height:min(120vh,120vw);
  transform:translate(-50%,-50%);opacity:.5}
.story__index{position:absolute;top:50%;right:clamp(20px,4vw,56px);transform:translateY(-50%);
  font-family:"Anton",sans-serif;font-size:1.1rem;color:var(--ink-dim);letter-spacing:.1em}
.story__index .story__total{color:var(--line)}

.chapter{position:relative;height:100vh;display:grid;place-items:center;z-index:2;overflow:hidden}
.chapter__bg{position:absolute;inset:0;z-index:-1;opacity:0;
  background:radial-gradient(120% 120% at 50% 0%,var(--g2,#1a2e3f) 0%,var(--g1,#0d1822) 55%,var(--bg) 100%)}
/* faint oversized German source word, revealed by scroll */
.chapter__ghost{position:absolute;inset:0;z-index:0;pointer-events:none;
  display:flex;align-items:center;justify-content:center;overflow:hidden}
.chapter__ghost span{font-family:"Anton",sans-serif;font-style:italic;text-transform:lowercase;
  white-space:nowrap;line-height:1;font-size:clamp(5rem,24vw,22rem);color:var(--steel);
  opacity:0;will-change:transform,opacity}
.chapter__inner{position:relative;z-index:2;text-align:center;padding:0 24px;max-width:1000px}
.chapter__kicker{display:inline-block;font-size:.76rem;letter-spacing:.28em;text-transform:uppercase;
  color:var(--accent-2);margin-bottom:10px}
.chapter__source{display:block;margin-bottom:20px;font-size:.84rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--ink-dim)}
.chapter__source b{color:var(--accent-2);font-weight:700}
.chapter__word{font-family:"Anton",sans-serif;font-size:clamp(2.4rem,11vw,11rem);line-height:.9;
  letter-spacing:.01em;white-space:nowrap}
.chapter__word .char{display:inline-block;transform:translateY(120%);opacity:0}
.chapter__copy{max-width:620px;margin:30px auto 0;font-size:clamp(1rem,1.5vw,1.3rem);
  color:var(--steel);line-height:1.6}

/* =========================================================
   STATS
   ========================================================= */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border-block:1px solid var(--line)}
.stat{background:var(--bg);padding:clamp(40px,7vw,90px) 30px;display:flex;flex-direction:column;gap:14px}
.stat__num{font-family:"Anton",sans-serif;font-size:clamp(2.6rem,6vw,5rem);color:var(--accent);
  line-height:1;font-variant-numeric:tabular-nums}
.stat__label{color:var(--ink-dim);font-size:.9rem;letter-spacing:.04em;max-width:200px}
@media (max-width:860px){.stats{grid-template-columns:repeat(2,1fr)}}

/* =========================================================
   PRODUCTS (horizontal scroll)
   ========================================================= */
.products{position:relative}
.products__pin{height:100vh;overflow:hidden;display:flex;flex-direction:column;justify-content:center;gap:40px}
.products__head{padding:0 clamp(24px,6vw,90px)}
.products__head h2{font-family:"Anton",sans-serif;font-size:clamp(1.8rem,4vw,3.4rem);line-height:1.02;
  margin-top:14px;font-weight:400}
.products__track{display:flex;gap:30px;padding:0 clamp(24px,6vw,90px);will-change:transform}
.card{position:relative;flex:0 0 clamp(280px,32vw,440px);height:54vh;min-height:380px;
  border:1px solid var(--line);background:var(--bg-2);overflow:hidden;
  display:flex;flex-direction:column;justify-content:flex-end;padding:30px;
  transition:border-color .4s}
.card:hover{border-color:var(--accent)}
.card__art{position:absolute;inset:0;z-index:0;transition:transform .8s var(--ease);opacity:.9}
.card:hover .card__art{transform:scale(1.06)}
.card__art--hot{background:
  radial-gradient(120% 90% at 30% 20%,#ff8a4d33,transparent 60%),
  repeating-linear-gradient(115deg,#1a222e,#1a222e 8px,#212c3a 8px,#212c3a 16px)}
.card__art--cold{background:
  radial-gradient(120% 90% at 70% 10%,#5fd0ff33,transparent 60%),
  repeating-linear-gradient(115deg,#161d27,#161d27 8px,#1d2733 8px,#1d2733 16px)}
.card__art--coat{background:
  conic-gradient(from 200deg at 60% 40%,#2a3744,#48586a,#2a3744,#6b7d90,#2a3744)}
.card__art--coil{background:
  radial-gradient(circle at 50% 50%,#cdd9e6 0%,#8a9bad 18%,#3a4856 40%,#1a222e 70%)}
.card h3{position:relative;z-index:1;font-size:1.5rem;font-weight:600;margin-bottom:8px}
.card p{position:relative;z-index:1;color:var(--steel);font-size:.95rem;line-height:1.5;max-width:30ch}
.card__idx{position:absolute;top:24px;right:26px;z-index:1;font-family:"Anton",sans-serif;
  font-size:1rem;color:var(--accent-2)}

/* =========================================================
   SECTORS
   ========================================================= */
.sectors{padding:14vh clamp(24px,6vw,90px)}
.sectors__head{margin-bottom:40px}
.sectors__list{list-style:none}
.sectors__list li{display:flex;align-items:baseline;gap:24px;
  font-family:"Anton",sans-serif;font-size:clamp(1.7rem,5.5vw,4.4rem);font-weight:400;
  padding:18px 0;border-top:1px solid var(--line);color:var(--ink);
  transition:color .4s,padding-left .5s var(--ease)}
.sectors__list li:last-child{border-bottom:1px solid var(--line)}
.sectors__list li span{font-family:"Space Grotesk";font-size:.9rem;color:var(--accent-2);letter-spacing:.1em}
.sectors__list li:hover{color:var(--accent);padding-left:24px}

/* =========================================================
   GLOBAL MAP
   ========================================================= */
.global{padding:14vh clamp(24px,6vw,90px)}
.global__inner{display:grid;grid-template-columns:1fr 1.1fr;gap:60px;align-items:center;max-width:var(--max);margin:0 auto}
.global__text h2{font-family:"Anton",sans-serif;font-weight:400;font-size:clamp(1.7rem,3.4vw,3rem);
  line-height:1.04;margin:18px 0 18px}
.global__text p{color:var(--steel);line-height:1.6;max-width:46ch}
.global__tags{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.global__tags li{border:1px solid var(--line);border-radius:40px;padding:7px 16px;font-size:.82rem;
  color:var(--ink-dim);transition:.3s}
.global__tags li:hover{border-color:var(--accent);color:var(--accent-2)}
.global__map{position:relative}
.global__mapimg{width:100%;opacity:.28;filter:brightness(0) invert(1) opacity(.4)}
.global__canvas{position:absolute;inset:0;width:100%;height:100%}
@media (max-width:860px){.global__inner{grid-template-columns:1fr;gap:34px}}

/* =========================================================
   QUALITY (pinned reveal)
   ========================================================= */
.quality{position:relative;background:var(--bg-2)}
.quality__pin{min-height:100vh;display:grid;grid-template-columns:1fr 1fr;gap:60px;
  align-items:center;padding:0 clamp(24px,6vw,90px)}
.quality__left .quality__title{font-family:"Anton",sans-serif;font-weight:400;
  font-size:clamp(2rem,4.6vw,4rem);line-height:1.02;margin:18px 0 26px}
.quality__title em{color:var(--accent);font-style:normal}
.quality__iso{display:inline-block;border:1px solid var(--accent);color:var(--accent-2);
  border-radius:40px;padding:9px 20px;font-size:.82rem;letter-spacing:.12em}
.quality__pillars{list-style:none;display:flex;flex-direction:column}
.quality__pillars li{display:flex;gap:20px;padding:26px 0;border-top:1px solid var(--line);
  color:var(--steel);font-size:1.05rem;line-height:1.5}
.quality__pillars li b{color:var(--accent);font-family:"Anton",sans-serif;font-weight:400;font-size:1.2rem}
@media (max-width:860px){.quality__pin{grid-template-columns:1fr;gap:36px;padding-block:14vh}}

/* =========================================================
   MARQUEE
   ========================================================= */
.marquee{overflow:hidden;border-block:1px solid var(--line);padding:26px 0}
.marquee__track{display:flex;white-space:nowrap;will-change:transform}
.marquee__track span{font-family:"Anton",sans-serif;font-size:clamp(2rem,5vw,4rem);
  color:var(--bg);-webkit-text-stroke:1px var(--steel);padding-right:.3em}

/* =========================================================
   FOOTER
   ========================================================= */
.footer{padding:12vh clamp(24px,6vw,90px) 40px;background:var(--bg)}
.footer__cta{border-bottom:1px solid var(--line);padding-bottom:6vh;margin-bottom:6vh}
.footer__big{display:inline-block;font-family:"Anton",sans-serif;font-size:clamp(3rem,12vw,11rem);
  line-height:.9;margin-top:18px;transition:color .4s}
.footer__big:hover{color:var(--accent)}
.footer__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-bottom:8vh}
.footer__grid h4{font-size:.78rem;letter-spacing:.2em;text-transform:uppercase;color:var(--accent-2);margin-bottom:14px}
.footer__grid p{color:var(--steel);line-height:1.6;margin-bottom:8px}
.footer__coords{color:var(--ink-dim);font-size:.82rem;letter-spacing:.1em}
.footer__bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding-top:30px;border-top:1px solid var(--line)}
.footer__bottom img{height:18px;filter:invert(1) brightness(2)}
.footer__bottom span{color:var(--ink-dim);font-size:.78rem;letter-spacing:.06em}
@media (max-width:860px){.footer__grid{grid-template-columns:1fr;gap:30px}}

/* =========================================================
   REVEAL UTILITIES
   ========================================================= */
[data-reveal]{opacity:0;transform:translateY(28px)}
[data-reveal-line]{opacity:0;transform:translateY(40px)}
[data-pillar]{opacity:0;transform:translateY(30px)}

/* =========================================================
   REDUCED MOTION
   ========================================================= */
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  [data-reveal],[data-reveal-line],[data-pillar]{opacity:1!important;transform:none!important}
  .hero__title .line span,.chapter__word .char{transform:none!important;opacity:1!important}
  .preloader{display:none}
  body{cursor:auto}.cursor{display:none}
}