@font-face{font-family:"Sohne";src:local("TestSohne-Leicht"),local("Sohne-Leicht"),local("Söhne Leicht");font-weight:300;font-display:swap}
@font-face{font-family:"Sohne";src:local("TestSohne-Buch"),local("Sohne-Buch"),local("Söhne Buch");font-weight:400;font-display:swap}
@font-face{font-family:"Sohne";src:local("TestSohne-Kraftig"),local("Sohne-Kraftig"),local("Söhne Kraftig");font-weight:500;font-display:swap}
@font-face{font-family:"Sohne";src:local("TestSohne-Halbfett"),local("Sohne-Halbfett"),local("Söhne Halbfett");font-weight:600;font-display:swap}

:root{
  /* ZREX tokens (DESIGN.md) */
  --canvas:#F7F8F5;
  --subtle:#EDEDF0;
  --raised:#FFFFFF;
  --ink:#252A31;
  --ink-2:#4F5661;
  --ink-3:#656C77;
  --hair:#E3E4E7;
  --blue:#3B5BFF;
  --blue-text:#3350F0;
  --blue-tint:#DDE6FF;
  --night:#1C2026;          /* charcoal, one step deeper for the cinematic stage */
  --night-2:#2D333B;
  --night-line:#3A414B;
  --night-ink-2:#C3C8D0;
  --f:"Sohne","Söhne","Test Söhne","Helvetica Neue",Helvetica,Arial,sans-serif;
  --tick:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Ccircle cx='8' cy='8' r='8' fill='%233B5BFF'/%3E%3Cpath d='M4.6 8.2l2.2 2.2 4.6-4.8' fill='none' stroke='white' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--night);-webkit-text-size-adjust:100%}
html.lenis,html.lenis body{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto!important}
body{font-family:var(--f);color:#fff;background:var(--night);font-weight:400;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.eyebrow{font-size:12px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-text)}

/* ---------- nav ---------- */
.nav{position:fixed;inset:0 0 auto 0;z-index:50;height:68px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 clamp(16px,3vw,40px);transition:background .5s,border-color .5s,color .5s;border-bottom:1px solid transparent}
.nav.solid{background:rgba(28,32,38,.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-color:var(--night-line)}
.logo img{height:20px;width:auto}
.logo .logo-dark{display:none}
.links{display:flex;gap:clamp(18px,2.2vw,32px)}
.links a{font-size:14px;font-weight:400;opacity:.85;transition:opacity .2s}
.links a:hover{opacity:1}
.nav-cta{justify-self:end;font-size:14px;font-weight:500;background:var(--blue);color:#fff;padding:11px 18px;border-radius:999px;transition:background .2s}
.nav-cta:hover{background:#2F4CF0}
.nav:not(.solid) .links{opacity:0;pointer-events:none;transition:opacity .4s}
.nav.solid .links{opacity:1;transition:opacity .4s}

/* ---------- story ---------- */
.story{position:relative;height:1000vh}
.stage{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;background:var(--night)}
#seq{position:absolute;inset:0;width:100%;height:100%;display:block}
.shade{position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,rgba(18,21,26,.45) 0%,rgba(18,21,26,0) 26%,rgba(18,21,26,0) 55%,rgba(18,21,26,.6) 100%)}
[data-from]{opacity:0;will-change:opacity,transform}

.hero-copy{position:absolute;left:50%;top:46%;transform:translate(-50%,-50%);text-align:center;width:min(94vw,1200px)}
.hero-copy::before{content:"";position:absolute;inset:-35% -8%;z-index:-1;background:radial-gradient(ellipse at center,rgba(18,21,26,.34),rgba(18,21,26,0) 68%)}
.hero-copy h1{font-weight:400;font-size:clamp(46px,8vw,128px);line-height:.98;letter-spacing:-.035em}
.hero-copy h1 span{display:block}
.hero-copy .blue{color:#8C9DFF}
.hero-copy p{margin:26px auto 0;max-width:46ch;font-size:clamp(15px,1.3vw,19px);line-height:1.5;color:rgba(255,255,255,.9)}

.chapter{position:absolute;left:clamp(16px,4vw,64px);bottom:clamp(96px,15vh,150px);max-width:520px;text-shadow:0 1px 24px rgba(0,0,0,.35)}
.chapter .num{font-size:12px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:#8C9DFF}
.chapter .title{font-size:clamp(34px,4.2vw,64px);font-weight:400;letter-spacing:-.03em;line-height:1.02;margin:10px 0 14px}
.chapter .sub{font-size:16px;line-height:1.5;color:rgba(255,255,255,.88);max-width:38ch}

/* floating ZREX UI */
.ui{position:absolute;display:flex;flex-direction:column;gap:10px;width:min(360px,80vw)}
.ui-right{right:clamp(16px,6vw,110px);top:50%;margin-top:-80px}
.card{background:rgba(255,255,255,.96);color:var(--ink);border-radius:18px;padding:14px 16px;box-shadow:0 18px 50px rgba(10,14,20,.28),0 2px 6px rgba(10,14,20,.12);display:flex;align-items:center;gap:12px}
.card b{display:flex;align-items:center;gap:6px;font-size:15px;font-weight:500;letter-spacing:-.01em}
.card small{display:block;font-size:13px;color:var(--ink-3);margin-top:3px}
.search svg{width:22px;height:22px;flex:none;fill:none;stroke:var(--ink);stroke-width:1.6;stroke-linecap:round}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{font-size:13px;font-weight:500;padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.92);color:var(--ink)}
.chip.on{background:var(--blue);color:#fff}
.person img{width:46px;height:46px;border-radius:50%;object-fit:cover;flex:none}
.person > div{flex:1;min-width:0}
.btn-mini{font-size:13px;font-weight:500;background:var(--blue);color:#fff;padding:8px 14px;border-radius:999px}
.tick{display:inline-block;width:16px;height:16px;background:var(--tick) center/contain no-repeat;flex:none}
.note{font-size:13px;color:var(--ink-2);background:rgba(221,230,255,.97)}
.listing{flex-direction:column;align-items:stretch;padding:8px}
.listing img{width:100%;height:150px;object-fit:cover;border-radius:12px}
.listing .lb{padding:8px 8px 6px}
.price{font-size:22px!important;letter-spacing:-.02em!important}
.tag{display:inline-block;margin-top:10px;font-size:12px;font-weight:500;color:var(--blue-text);background:var(--blue-tint);padding:6px 10px;border-radius:999px}
.bubble{max-width:82%;font-size:15px;line-height:1.35;padding:11px 14px;border-radius:18px;box-shadow:0 12px 34px rgba(10,14,20,.22)}
.bubble.out{align-self:flex-end;background:var(--blue);color:#fff;border-bottom-right-radius:6px}
.bubble.in{align-self:flex-start;background:#fff;color:var(--ink);border-bottom-left-radius:6px}
.visit .ok{width:34px;height:34px;flex:none;border-radius:50%;background:var(--blue-tint) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Crect x='4' y='5' width='16' height='15' rx='3' fill='none' stroke='%233B5BFF' stroke-width='1.6'/%3E%3Cpath d='M4 9.5h16M8.5 3v4M15.5 3v4M9 14.5l2 2 4-4' fill='none' stroke='%233B5BFF' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/20px no-repeat}

.reveal{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:radial-gradient(ellipse at center,rgba(18,21,26,.42),rgba(18,21,26,0) 66%)}
.big-logo{width:min(72vw,760px);height:auto;filter:drop-shadow(0 8px 40px rgba(0,0,0,.35))}
.reveal .tag{margin-top:28px;background:none;color:#fff;font-size:clamp(15px,1.4vw,20px);font-weight:400;padding:0}

.scroll-hint{position:absolute;left:50%;bottom:30px;transform:translateX(-50%);font-size:12px;letter-spacing:.2em;text-transform:uppercase}
.scroll-hint::after{content:"";display:block;width:1px;height:36px;margin:10px auto 0;background:linear-gradient(#fff,transparent);animation:drip 1.8s ease-in-out infinite}
@keyframes drip{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

.progress{position:absolute;right:clamp(16px,3vw,40px);bottom:clamp(28px,5vh,48px);list-style:none;display:flex;gap:18px;font-size:12px;font-weight:500;letter-spacing:.06em}
.progress li{opacity:.45;transition:opacity .4s;position:relative;padding-top:12px}
.progress li::before{content:"";position:absolute;top:0;left:0;height:2px;width:100%;border-radius:2px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .5s}
.progress li.on{opacity:1}
.progress li.on::before{transform:scaleX(1)}
.loader{position:absolute;right:20px;top:84px;font-size:12px;opacity:.6;transition:opacity .6s}
.loader.done{opacity:0}

/* ---------- features (full-bleed, stacked) ---------- */
.rooms{position:relative}
.room{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;background:var(--night)}
.room-media{position:absolute;inset:0}
.room-media img{width:100%;height:100%;object-fit:cover;transform:scale(1.12)}
.room::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,rgba(18,21,26,.78) 0%,rgba(18,21,26,.35) 50%,rgba(18,21,26,.1) 100%),linear-gradient(0deg,rgba(18,21,26,.55) 0%,rgba(18,21,26,0) 45%)}
.room-copy{position:absolute;z-index:2;left:clamp(16px,4vw,64px);bottom:clamp(40px,10vh,104px);max-width:min(600px,88vw)}
.room-num{display:block;font-size:clamp(56px,7vw,104px);font-weight:300;line-height:1;letter-spacing:-.03em;margin-bottom:18px}
.pill{display:inline-block;font-size:13px;font-weight:500;color:#fff;background:var(--blue);padding:7px 12px;border-radius:999px;margin-bottom:16px}
.room h2{font-size:clamp(34px,4.4vw,66px);font-weight:400;line-height:1.02;letter-spacing:-.03em}
.room-copy p{margin-top:18px;font-size:17px;line-height:1.55;color:rgba(255,255,255,.86);max-width:44ch}
.room-phone{position:absolute;z-index:2;right:clamp(16px,8vw,150px);top:50%;width:clamp(220px,20vw,310px);transform:translateY(-50%);border-radius:44px;padding:9px;background:#0F1216;box-shadow:0 40px 90px rgba(0,0,0,.45),inset 0 0 0 1px rgba(255,255,255,.08)}
.room-phone img{width:100%;border-radius:36px}

/* ---------- privacy ---------- */
.privacy{position:relative;z-index:3;background:var(--canvas);color:var(--ink);display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(40px,6vw,110px);align-items:center;padding:clamp(90px,15vh,170px) clamp(16px,5vw,96px)}
.privacy h2{font-size:clamp(42px,5.8vw,92px);font-weight:400;letter-spacing:-.04em;line-height:.98;margin:18px 0 26px}
.lead{font-size:clamp(17px,1.35vw,20px);line-height:1.55;color:var(--ink-2);max-width:48ch}
.pv-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:clamp(40px,7vh,72px);border-top:1px solid var(--hair);padding-top:24px}
.pv-list dt{font-size:17px;font-weight:500;letter-spacing:-.01em}
.pv-list dd{margin-top:6px;font-size:15px;line-height:1.5;color:var(--ink-3)}
.pv-phone{justify-self:center;width:clamp(240px,22vw,330px);border-radius:46px;padding:10px;background:var(--ink);box-shadow:0 40px 80px rgba(37,42,49,.22)}
.pv-phone img{border-radius:37px;width:100%}

/* ---------- gallery ---------- */
.gallery{position:relative;z-index:3;height:100vh;height:100svh;overflow:hidden;background:var(--subtle);color:var(--ink);display:flex;flex-direction:column;justify-content:center;gap:clamp(24px,4vh,44px);padding-top:68px}
.gallery-head{padding:0 clamp(16px,5vw,96px)}
.gallery-head h2{font-size:clamp(32px,4vw,60px);font-weight:400;letter-spacing:-.035em;line-height:1.02;margin-top:14px;max-width:16ch}
.gallery-track{display:flex;gap:clamp(16px,2vw,32px);padding:0 clamp(16px,5vw,96px);will-change:transform}
.gallery figure{flex:0 0 auto;width:min(15vw,calc((100svh - 68px - 300px) * .42));min-width:170px}
.gallery img{width:100%;border-radius:30px;border:7px solid var(--ink);background:var(--ink)}
.gallery figure:nth-child(even){margin-top:5vh}
.gallery figcaption{margin-top:14px;font-size:14px;font-weight:500;color:var(--ink-2)}

/* ---------- pros ---------- */
.pros{position:relative;z-index:3;background:var(--canvas);color:var(--ink);padding:clamp(90px,15vh,170px) clamp(16px,5vw,96px)}
.pros h2{font-size:clamp(38px,5vw,80px);font-weight:400;letter-spacing:-.04em;line-height:1;margin:18px 0 24px}
.pro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2vw,28px);margin-top:clamp(48px,8vh,88px)}
.pro-grid img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:24px}
.pro-grid h3{font-size:22px;font-weight:500;letter-spacing:-.02em;margin-top:20px}
.pro-grid p{font-size:16px;line-height:1.5;color:var(--ink-3);margin-top:8px;max-width:34ch}

/* ---------- faq ---------- */
.faq{position:relative;z-index:3;background:var(--canvas);color:var(--ink);display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(40px,6vw,110px);padding:0 clamp(16px,5vw,96px) clamp(90px,15vh,170px)}
.faq-head h2{font-size:clamp(38px,4.6vw,72px);font-weight:400;letter-spacing:-.04em;line-height:1}
.faq-head p{margin-top:20px;font-size:16px;line-height:1.55;color:var(--ink-3);max-width:34ch}
.faq-list details{border-top:1px solid var(--hair);padding:22px 0}
.faq-list details:last-child{border-bottom:1px solid var(--hair)}
.faq-list summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;font-size:clamp(18px,1.5vw,22px);font-weight:500;letter-spacing:-.015em}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";font-weight:300;font-size:26px;line-height:1;color:var(--blue);transition:transform .3s}
.faq-list details[open] summary::after{transform:rotate(45deg)}
.faq-list p{margin-top:12px;font-size:16px;line-height:1.6;color:var(--ink-2);max-width:60ch}

/* ---------- cta ---------- */
.cta{position:relative;z-index:3;min-height:100vh;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden}
.cta-media{position:absolute;inset:0}
.cta-media img{width:100%;height:100%;object-fit:cover}
.cta::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(18,21,26,.85) 0%,rgba(18,21,26,.25) 60%,rgba(18,21,26,.1) 100%)}
.cta-copy{position:relative;z-index:2;padding:clamp(48px,10vh,110px) clamp(16px,5vw,96px)}
.cta h2{font-size:clamp(42px,6.4vw,104px);font-weight:400;letter-spacing:-.04em;line-height:.98}
.cta p{margin-top:20px;font-size:clamp(16px,1.4vw,20px);color:rgba(255,255,255,.88)}
.cta-btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.btn-primary,.btn-ghost{font-size:16px;font-weight:500;padding:15px 24px;border-radius:999px;transition:background .2s,color .2s}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:#2F4CF0}
.btn-ghost{border:1px solid rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--ink)}

/* ---------- footer ---------- */
.foot{position:relative;z-index:3;background:var(--night);display:grid;grid-template-columns:1fr auto;gap:40px;padding:clamp(56px,9vh,96px) clamp(16px,5vw,96px) 28px}
.foot-brand img{height:22px;width:auto}
.foot-brand p{margin-top:18px;font-size:15px;line-height:1.5;color:var(--night-ink-2)}
.foot-cols{display:flex;gap:clamp(32px,5vw,80px)}
.foot-cols h3{font-size:13px;font-weight:500;color:#fff;margin-bottom:14px}
.foot-cols a{display:block;font-size:14px;color:var(--night-ink-2);margin-bottom:10px}
.foot-cols a:hover{color:#fff}
.foot-base{grid-column:1/-1;border-top:1px solid var(--night-line);padding-top:24px;font-size:13px;color:#9AA1AC}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .links{display:none}
  .nav{grid-template-columns:1fr auto}
  .progress{left:16px;right:16px;justify-content:space-between;gap:6px;font-size:11px}
  .chapter{bottom:auto;top:96px;right:16px}
  .ui-right{left:16px;right:16px;width:auto;top:auto;bottom:84px;margin-top:0}
  .room-phone{display:none}
  .privacy,.faq{grid-template-columns:1fr}
  .pv-list{grid-template-columns:1fr}
  .pro-grid{grid-template-columns:1fr}
  .foot{grid-template-columns:1fr}
  .foot-cols{flex-wrap:wrap}
}
@media (prefers-reduced-motion:reduce){
  .scroll-hint::after{animation:none}
  .room-media img{transform:none}
}