/* ============================================================
   KUROIWA · KWI CAPITAL AG
   Sleek · Black & Red · Boutique / Blackstone-grade
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root{
  --black:#0a0a0a;
  --black-2:#0d0d0d;
  --black-3:#131313;
  --white:#f4f4f4;
  --red:#c1272d;
  --red-h:#e03038;
  --grey:#8c8c8c;
  --grey-2:#5f5f5f;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.16);
  --maxw:1340px;
  --pad:clamp(22px,5.5vw,88px);
  --ease:cubic-bezier(.22,1,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Inter',-apple-system,'Helvetica Neue',Arial,sans-serif;
  background:var(--black); color:var(--white);
  font-size:16px; line-height:1.65; font-weight:400;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
::selection{background:var(--red);color:#fff}

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

/* label */
.eyebrow{display:inline-flex;align-items:center;gap:14px;font-size:10.5px;letter-spacing:.32em;
  text-transform:uppercase;font-weight:600;color:#bcbcbc}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--red)}
.eyebrow.center{justify-content:center}

/* logo image */
.logo{height:26px;width:auto;display:block}

/* ============================================================
   PRELOADER
   ============================================================ */
#pre{position:fixed;inset:0;z-index:9999;background:#000;display:flex;align-items:center;justify-content:center;
  transition:opacity .9s var(--ease),visibility .9s;
  animation:preFail 0s 4s forwards} /* Fallback: verschwindet auch ohne JS */
#pre.done{opacity:0;visibility:hidden}
@keyframes preFail{to{opacity:0;visibility:hidden}}
#pre img{width:min(320px,54vw);opacity:0;animation:pin 1.3s var(--ease) forwards}
@keyframes pin{0%{opacity:0;transform:translateY(8px)}100%{opacity:1;transform:none}}

/* ============================================================
   NAV
   ============================================================ */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;
  padding:24px var(--pad);transition:background .5s var(--ease),padding .5s var(--ease),border-color .5s;
  border-bottom:1px solid transparent}
.nav.solid{background:rgba(8,8,8,.78);backdrop-filter:blur(20px) saturate(1.3);padding-block:15px;border-bottom-color:var(--line)}
.nav .logo{height:22px}
.nav-links{display:flex;gap:38px;align-items:center;font-size:12px;font-weight:500;letter-spacing:.14em;text-transform:uppercase}
.nav-links a{position:relative;color:#cfcfcf;transition:color .35s}
.nav-links a:hover{color:#fff}
.nav-links a:not(.nav-cta)::after{content:"";position:absolute;left:0;bottom:-7px;height:2px;width:0;background:var(--red);transition:width .4s var(--ease)}
.nav-links a:not(.nav-cta):hover::after{width:100%}
.nav-cta{border:1px solid var(--line-2);padding:9px 20px;font-size:11px;transition:.35s;color:#fff}
.nav-cta:hover{background:var(--red);border-color:var(--red)}
.burger{display:none;flex-direction:column;gap:6px;cursor:pointer;z-index:110}
.burger span{width:26px;height:2px;background:#fff;display:block;transition:.35s}

/* ============================================================
   HERO
   ============================================================ */
.hero{position:relative;min-height:100vh;display:flex;align-items:flex-end;justify-content:center;text-align:center;
  background:#070707;overflow:hidden}
.hero .herobg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 42%;
  z-index:0;transform:scale(1.02);animation:kenburns 36s ease-out forwards;will-change:transform}
@keyframes kenburns{to{transform:scale(1.09)}}
.hero .veil{position:absolute;inset:0;z-index:1;pointer-events:none;
  background:
    radial-gradient(75% 60% at 50% 72%, rgba(0,0,0,.42) 0%, rgba(0,0,0,0) 66%),
    linear-gradient(180deg, rgba(7,7,7,.74) 0%, rgba(7,7,7,.24) 26%, rgba(7,7,7,.30) 52%, rgba(7,7,7,.62) 78%, rgba(7,7,7,.92) 100%)}
.hero::before{content:"";position:absolute;top:-26%;left:50%;transform:translateX(-50%);z-index:2;
  width:900px;height:900px;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(193,39,45,.18) 0%,rgba(193,39,45,0) 62%)}
.hero-inner{position:relative;z-index:3;padding:0 0 16vh}
.hero .eyebrow{margin-bottom:26px;font-size:10px;letter-spacing:.4em;color:#d8d8d8;opacity:.9}
.hero h1{font-weight:500;font-size:clamp(30px,4.4vw,60px);letter-spacing:-.015em;line-height:1.14;
  margin:0 auto;max-width:20ch;color:#fff;text-shadow:0 2px 44px rgba(0,0,0,.55)}
.hero .hero-sub{margin-top:26px;font-size:clamp(14px,1.35vw,17px);color:#c4c4c4;font-weight:300;
  letter-spacing:.02em;max-width:46ch;margin-left:auto;margin-right:auto}
.hero .hero-sub b{color:#fff;font-weight:500}
.hero .lede{font-size:clamp(15px,1.4vw,18px);max-width:46ch;margin:0 auto;color:#a8a8a8;font-weight:300;line-height:1.7}
.hero .acts{display:flex;gap:36px;justify-content:center;align-items:center;margin-top:48px;flex-wrap:wrap}

.link-lux{display:inline-flex;align-items:center;gap:12px;font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;
  color:#fff;padding-bottom:8px;border-bottom:1px solid var(--line-2);transition:.4s var(--ease)}
.link-lux .arw{transition:transform .4s var(--ease);color:var(--red-h)}
.link-lux:hover{border-bottom-color:var(--red)}
.link-lux:hover .arw{transform:translateX(6px)}

.scrollcue{position:absolute;left:50%;transform:translateX(-50%);bottom:32px;z-index:4;display:flex;flex-direction:column;
  align-items:center;gap:12px;color:var(--grey-2);font-size:9.5px;letter-spacing:.34em;text-transform:uppercase}
.scrollcue .ln{width:1px;height:50px;background:rgba(255,255,255,.18);position:relative;overflow:hidden}
.scrollcue .ln::after{content:"";position:absolute;top:-50px;left:0;width:1px;height:50px;background:var(--red);animation:drop 2.6s var(--ease) infinite}
@keyframes drop{0%{top:-50px}70%,100%{top:50px}}

/* ============================================================
   SLIDES — Intro-Logo (Slide 1) + Text-Slide (Slide 2)
   ============================================================ */
html{scroll-snap-type:y proximity}
/* Nav-Logo erst nach dem Scrollen einblenden (Intro = grosses Logo) */
.nav .logo{opacity:0;transition:opacity .5s var(--ease)}
.nav.solid .logo{opacity:1}

.hero-intro{position:relative;min-height:100vh;background:#000;display:flex;flex-direction:column;
  align-items:center;justify-content:center;scroll-snap-align:start}
.hero-intro .k-logo{width:min(500px,64vw);opacity:0;animation:logoIn 1.7s var(--ease) .25s forwards}
@keyframes logoIn{0%{opacity:0;transform:translateY(10px);filter:blur(5px)}100%{opacity:1;transform:none;filter:none}}

.slide-text{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;
  text-align:center;background:#070707;overflow:hidden;scroll-snap-align:start}
.slide-text .bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 42%;
  z-index:0;transform:scale(1.03);animation:kenburns 34s ease-out forwards}
.slide-text .veil{position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,7,7,.84) 0%,rgba(7,7,7,.46) 42%,rgba(7,7,7,.88) 100%),
             radial-gradient(62% 52% at 50% 52%,rgba(0,0,0,.42),transparent 72%)}
.slide-inner{position:relative;z-index:2;max-width:940px;padding-inline:var(--pad)}
.slide-text .eyebrow{margin-bottom:28px}
.slide-text h2{font-weight:500;font-size:clamp(34px,5.5vw,74px);line-height:1.06;letter-spacing:-.02em;color:#fff;
  text-shadow:0 2px 44px rgba(0,0,0,.5)}
.slide-text p{margin:30px auto 0;font-size:clamp(16px,1.7vw,21px);line-height:1.6;color:#cfcfcf;font-weight:300;max-width:42ch}
.slide-text p em{font-style:normal;color:var(--red-h);font-weight:400}

/* Flaggen-Emblem (Japan × Schweiz) */
.flags{display:inline-flex;align-items:center;gap:8px;opacity:.85}
.flags .fl{display:inline-flex;line-height:0;border-radius:3px;overflow:hidden;box-shadow:0 2px 6px rgba(0,0,0,.4);border:1px solid rgba(255,255,255,.1)}
.flags .fl svg{display:block}
.flags .x{color:var(--grey-2);font-size:12px;letter-spacing:.1em}
.flags-c{justify-content:center;margin-top:36px}
.flags-lbl{margin-top:12px;font-size:10px;letter-spacing:.32em;text-transform:uppercase;color:var(--grey-2)}

/* ============================================================
   SECTION PRIMITIVES
   ============================================================ */
section{padding-block:clamp(90px,12vw,170px)}
.sec-head{margin-bottom:66px;max-width:960px}
.sec-head .eyebrow{margin-bottom:26px}
.sec-head h2{font-weight:700;font-size:clamp(32px,5vw,66px);line-height:1.04;letter-spacing:-.02em}
.sec-head p{color:var(--grey);font-size:17px;max-width:56ch;margin-top:22px;font-weight:300;line-height:1.75}

/* ---------- STATEMENT ---------- */
.statement{background:var(--black-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.statement .wrap{max-width:1140px}
.statement p{font-weight:600;font-size:clamp(26px,4vw,52px);line-height:1.24;letter-spacing:-.02em}
.statement p em{font-style:normal;color:var(--red-h)}
.statement .sig{margin-top:44px;font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--grey)}

/* ---------- APPROACH ---------- */
.approach{background:var(--black)}
.pillars{border-top:1px solid var(--line)}
.pillar{display:grid;grid-template-columns:100px 1fr auto;gap:44px;align-items:start;
  padding:46px 0;border-bottom:1px solid var(--line);transition:padding .5s var(--ease),background .5s}
.pillar:hover{padding-inline:20px;background:var(--black-2)}
.pillar .no{font-size:14px;font-weight:700;color:var(--red);letter-spacing:.1em;padding-top:8px}
.pillar h3{font-weight:600;font-size:clamp(22px,2.6vw,32px);letter-spacing:-.01em;margin-bottom:12px}
.pillar p{color:var(--grey);font-size:15.5px;max-width:56ch;font-weight:300;line-height:1.7}
.pillar .tag{font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--grey-2);white-space:nowrap;padding-top:10px}

/* ---------- KUROIWA ---------- */
.kuro{background:var(--black-2);position:relative;overflow:hidden}
.kuro .kanji{position:absolute;right:-1vw;top:50%;transform:translateY(-50%);font-size:min(40vw,480px);
  color:#fff;opacity:.035;line-height:.8;pointer-events:none;font-weight:700}
.kuro .wrap{position:relative;z-index:2;max-width:820px}
.kuro h2{font-weight:700;font-size:clamp(30px,4.4vw,60px);line-height:1.08;letter-spacing:-.02em;margin:22px 0 28px}
.kuro h2 b{color:var(--red-h);font-weight:700}
.kuro p{color:var(--grey);font-size:17px;font-weight:300;line-height:1.85;max-width:60ch}
.kuro p+p{margin-top:20px}

/* ---------- FIGURES ---------- */
.figures{background:var(--black);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.fig-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.fig{border-left:1px solid var(--line);padding:6px 0 6px 28px}
.fig:first-child{border-left:0;padding-left:0}
.fig .n{font-size:clamp(34px,4.4vw,58px);font-weight:700;letter-spacing:-.02em;line-height:1}
.fig .n .u{color:var(--red)}
.fig .l{margin-top:14px;color:var(--grey);font-size:13px;max-width:22ch;font-weight:300;letter-spacing:.02em}

/* ============================================================
   STUDIEN
   ============================================================ */
.studies{background:var(--black-2)}
.cases-head{text-align:center;max-width:760px;margin:0 auto 56px}
.cases-head .eyebrow{margin-bottom:22px}
.cases-head h2{font-weight:600;font-size:clamp(27px,3.6vw,48px);line-height:1.06;letter-spacing:-.02em}
.cases-head p{color:var(--grey);font-size:15.5px;font-weight:300;margin-top:16px}
.cases-more{text-align:center;margin-top:52px}
.studies-top{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;flex-wrap:wrap;margin-bottom:52px}
.filters{display:flex;gap:10px;flex-wrap:wrap}
.chip{border:1px solid var(--line-2);background:transparent;color:var(--grey);padding:9px 20px;border-radius:100px;
  font-size:11px;letter-spacing:.1em;text-transform:uppercase;cursor:pointer;transition:.3s;font-family:inherit}
.chip:hover{border-color:#fff;color:#fff}
.chip.active{background:var(--red);color:#fff;border-color:var(--red)}
.study-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line)}
.scard{background:var(--black-2);padding:38px 32px 34px;display:flex;flex-direction:column;min-height:340px;transition:.5s var(--ease);position:relative}
.scard::before{content:"";position:absolute;left:0;top:0;height:2px;width:0;background:var(--red);transition:width .5s var(--ease)}
.scard:hover{background:var(--black-3)}
.scard:hover::before{width:100%}
.scard .cat{font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--red-h);font-weight:600}
.scard .st-title{font-weight:600;font-size:22px;line-height:1.2;margin:18px 0 14px;letter-spacing:-.01em}
.scard .sum{color:var(--grey);font-size:14.5px;line-height:1.65;flex:1;font-weight:300}
.scard .meta{display:flex;justify-content:space-between;align-items:center;margin-top:24px;padding-top:18px;border-top:1px solid var(--line);font-size:11px;color:var(--grey-2);letter-spacing:.04em}
.scard .meta .read{display:inline-flex;gap:9px;align-items:center;color:#fff;text-transform:uppercase;letter-spacing:.14em;font-size:10px}
.scard .arw{color:var(--red-h);transition:transform .4s var(--ease)}
.scard:hover .arw{transform:translateX(5px)}
.empty{grid-column:1/-1;padding:80px 20px;text-align:center;color:var(--grey);border:1px dashed var(--line-2);font-weight:300}
.empty a{color:var(--red-h)}

/* ============================================================
   STUDY DETAIL
   ============================================================ */
.article{max-width:740px;margin:0 auto;padding-top:170px}
.article .cat{color:var(--red-h)}
.article h1{font-weight:700;font-size:clamp(34px,5vw,60px);line-height:1.08;letter-spacing:-.02em;margin:20px 0 24px}
.article .amETA{display:flex;gap:26px;flex-wrap:wrap;color:var(--grey);font-size:12px;letter-spacing:.08em;
  border-bottom:1px solid var(--line);padding-bottom:26px;margin-bottom:42px;text-transform:uppercase}
.article .cover{width:100%;aspect-ratio:16/8;object-fit:cover;margin:0 0 44px;background:var(--black-3)}
.article .body{font-size:18px;line-height:1.8;color:#d6d6d6;font-weight:300}
.article .body h2{font-weight:700;font-size:28px;margin:46px 0 16px;letter-spacing:-.01em;color:#fff}
.article .body h3{font-size:19px;font-weight:600;margin:32px 0 10px;color:#fff}
.article .body p{margin-bottom:22px}
.article .body b{color:#fff;font-weight:600}
.article .body ul,.article .body ol{margin:0 0 22px 24px}
.article .body li{margin-bottom:10px}
.article .body blockquote{border-left:2px solid var(--red);padding:6px 0 6px 24px;margin:30px 0;font-size:23px;color:#fff;font-weight:400}
.article .body a{color:var(--red-h);text-decoration:underline;text-underline-offset:4px}
.article .backlink{display:inline-flex;gap:10px;align-items:center;margin-top:62px;color:var(--grey);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase}
.article .backlink:hover{color:var(--red-h)}

/* ============================================================
   CTA (skyline)
   ============================================================ */
.cta{position:relative;overflow:hidden;text-align:center;background:#070707;border-top:1px solid var(--line);padding-block:clamp(64px,8vw,110px)}
.cta .bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;opacity:.5;z-index:0;
  transform:scale(1.03);animation:kenburns 30s ease-out forwards}
.cta::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:
    linear-gradient(180deg,rgba(7,7,7,.9) 0%,rgba(7,7,7,.72) 50%,rgba(7,7,7,.93) 100%),
    radial-gradient(70% 60% at 50% 45%,rgba(193,39,45,.13),transparent 70%)}
.cta .wrap{position:relative;z-index:2}
.cta .mail{display:inline-block;margin-top:6px}
.cta h2{font-weight:600;font-size:clamp(20px,2.3vw,30px);line-height:1.12;letter-spacing:-.01em;max-width:22ch;margin:16px auto 14px}
.cta p{color:#a6a6a6;max-width:40ch;margin:0 auto 26px;font-weight:300;font-size:14px}
.cta .mail{font-size:clamp(15px,1.5vw,19px);font-weight:600;color:#fff;border-bottom:1px solid var(--line-2);padding-bottom:6px;transition:.4s}
.cta .mail:hover{border-bottom-color:var(--red);color:var(--red-h)}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{background:#060606;color:var(--grey);padding-block:74px 42px;font-size:14px;font-weight:300;border-top:1px solid var(--line)}
.footer .top{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:48px;border-bottom:1px solid var(--line);padding-bottom:50px}
.footer .logo{height:24px;margin-bottom:20px}
.footer h5{color:#fff;font-size:11px;letter-spacing:.2em;text-transform:uppercase;margin-bottom:22px;font-weight:600}
.footer a{color:var(--grey);display:block;margin-bottom:12px}
.footer a:hover{color:#fff}
.footer .desc{max-width:38ch;color:#6f6f6f;line-height:1.8}
.footer .bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-top:28px;flex-wrap:wrap;color:var(--grey-2);font-size:12px;letter-spacing:.04em}

/* ============================================================
   REVEAL
   ============================================================ */
.rv{opacity:0;transform:translateY(26px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.rv.in{opacity:1;transform:none}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .rv{opacity:1!important;transform:none!important}
  #pre{display:none!important}
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:900px){
  .nav-links{position:fixed;inset:0;background:var(--black);flex-direction:column;justify-content:center;gap:34px;font-size:15px;transform:translateX(100%);transition:transform .55s var(--ease)}
  .nav-links.open{transform:none}
  .burger{display:flex}
  .pillar{grid-template-columns:44px 1fr;gap:20px}
  .pillar .tag{display:none}
  .fig-grid{grid-template-columns:1fr 1fr;gap:44px 24px}
  .fig{border-left:0;padding-left:0}
  .study-grid{grid-template-columns:1fr}
  .footer .top{grid-template-columns:1fr;gap:34px}
}