/* =========================================================
   KEIZOKU — Motion / FX layer
   Preloader · custom cursor · kinetic hero · scroll reveals
   ========================================================= */

/* ---------- Preloader ---------- */
.preloader{
  position:fixed;inset:0;z-index:9999;background:var(--ink);
  display:flex;align-items:center;justify-content:center;overflow:hidden;
  transition:transform 1s cubic-bezier(.76,0,.24,1);
}
.preloader.done{transform:translateY(-100%)}
.preloader__inner{display:flex;flex-direction:column;align-items:center;gap:22px;
  transform:translateY(0);transition:opacity .5s ease,transform .8s cubic-bezier(.16,1,.3,1)}
.preloader.done .preloader__inner{opacity:0;transform:translateY(-12px)}
.preloader__mark{width:clamp(70px,9vw,110px);opacity:0;transform:translateY(14px) scale(.92);
  animation:plMark .9s cubic-bezier(.16,1,.3,1) forwards .05s}
@keyframes plMark{to{opacity:1;transform:none}}
.preloader__word{font-family:var(--f-disp);font-weight:700;letter-spacing:.5em;
  text-transform:uppercase;color:var(--paper);font-size:14px;padding-left:.5em;
  opacity:0;animation:plWord .8s cubic-bezier(.16,1,.3,1) forwards .3s}
@keyframes plWord{to{opacity:.85}}
.preloader__bar{width:min(54vw,260px);height:2px;background:rgba(255,255,255,.14);overflow:hidden}
.preloader__bar span{display:block;height:100%;width:0;background:var(--accent);
  animation:plBar 1.15s cubic-bezier(.7,0,.3,1) forwards .15s}
@keyframes plBar{to{width:100%}}
/* CSS fallback: never leave the curtain stuck if JS fails */
.preloader{animation:plFail .4s forwards 3.2s}
@keyframes plFail{to{transform:translateY(-100%);pointer-events:none}}

/* ---------- Custom cursor (desktop pointers only) ---------- */
.cursor-dot,.cursor-ring{position:fixed;top:0;left:0;border-radius:50%;
  pointer-events:none;z-index:9998;transform:translate(-50%,-50%);
  mix-blend-mode:difference;will-change:transform}
.cursor-dot{width:7px;height:7px;background:#fff}
.cursor-ring{width:40px;height:40px;border:1px solid rgba(255,255,255,.8);
  transition:width .3s cubic-bezier(.16,1,.3,1),height .3s cubic-bezier(.16,1,.3,1),background .3s,opacity .3s,border-color .3s}
.cursor-ring.hot{width:64px;height:64px;background:rgba(255,255,255,.12);border-color:transparent}
.cursor-ring.hide,.cursor-dot.hide{opacity:0}
@media (hover:hover) and (pointer:fine){
  body.has-cursor{cursor:none}
  body.has-cursor a,body.has-cursor button,body.has-cursor .btn,body.has-cursor [data-cursor]{cursor:none}
}
@media (hover:none),(pointer:coarse){.cursor-dot,.cursor-ring{display:none}}

/* ---------- Grain + drifting backdrop on dark heros ---------- */
.fx-noise{position:absolute;inset:-50%;opacity:.06;pointer-events:none;
  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='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation:grain 1.2s steps(3) infinite}
@keyframes grain{0%{transform:translate(0,0)}33%{transform:translate(-4%,2%)}66%{transform:translate(3%,-3%)}100%{transform:translate(0,0)}}

/* ---------- HERO kinetic ---------- */
.hero{align-items:center}
.hero__bigword-wrap{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  z-index:1;pointer-events:none;overflow:hidden}
.hero__bigword{font-family:var(--f-disp);font-weight:700;text-transform:uppercase;letter-spacing:.02em;
  font-size:clamp(120px,26vw,420px);line-height:.8;white-space:nowrap;
  color:transparent;-webkit-text-stroke:1.5px rgba(255,255,255,.06);
  user-select:none}
.hero__mark-wrap{position:absolute;inset:0;display:flex;align-items:center;justify-content:flex-end;
  z-index:1;pointer-events:none;overflow:hidden}
.hero .hero__mark{position:static;top:auto;right:auto;transform:none;animation:none;
  width:min(58vw,740px);margin-right:-3%;opacity:.11;filter:grayscale(1)}
.hero__side{position:absolute;right:clamp(14px,3vw,34px);top:50%;
  writing-mode:vertical-rl;transform:translateY(-50%);
  font-family:var(--f-disp);letter-spacing:.34em;text-transform:uppercase;
  font-size:11px;color:var(--muted-d);display:flex;align-items:center;gap:18px;z-index:3}
.hero__side::after{content:"";height:70px;width:1px;background:linear-gradient(var(--accent),transparent)}

/* kinetic headline — line mask reveal (keyframe-driven for reliability) */
.hero__title{font-family:var(--f-jp);font-weight:700;
  font-size:clamp(36px,7vw,98px);line-height:1.04;letter-spacing:.005em}
.hero__title .line{display:block;overflow:hidden;padding-bottom:.04em}
.hero__title .t{display:block;transform:translateY(115%)}
.hero__title em{font-style:normal;color:var(--accent)}
.loaded .hero__title .t{animation:lineUp 1.05s cubic-bezier(.16,1,.3,1) both}
.loaded .hero__title .line:nth-child(2) .t{animation-delay:.12s}
@keyframes lineUp{from{transform:translateY(115%)}to{transform:translateY(0)}}

/* generic load-in for hero supporting elements */
.hero [data-load]{opacity:0;transform:translateY(26px)}
.loaded .hero [data-load]{animation:loadIn .9s cubic-bezier(.16,1,.3,1) both;animation-delay:var(--d,0s)}
@keyframes loadIn{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}

/* parallax layers get smoothed */
[data-parallax]{will-change:transform;transition:transform .25s cubic-bezier(.2,.8,.2,1)}

/* ---------- Scroll reveal upgrades ---------- */
/* clip reveal for big display headings */
[data-reveal="clip"]{opacity:1;transform:none;clip-path:inset(0 100% 0 0)}
[data-reveal="clip"].in{clip-path:inset(0 0 0 0);transition:clip-path 1.1s cubic-bezier(.16,1,.3,1)}
/* line-mask reveal for headings */
.reveal-mask{display:block;overflow:hidden}
.reveal-mask>*{display:block;transform:translateY(110%);transition:transform 1s cubic-bezier(.16,1,.3,1)}
.in>.reveal-mask>*,.reveal-mask.in>*{transform:translateY(0)}

/* stagger children */
[data-stagger]>*{opacity:0;transform:translateY(28px);
  transition:opacity .8s cubic-bezier(.16,1,.3,1),transform .8s cubic-bezier(.16,1,.3,1)}
[data-stagger].in>*{opacity:1;transform:none}
[data-stagger].in>*:nth-child(1){transition-delay:.04s}
[data-stagger].in>*:nth-child(2){transition-delay:.12s}
[data-stagger].in>*:nth-child(3){transition-delay:.20s}
[data-stagger].in>*:nth-child(4){transition-delay:.28s}
[data-stagger].in>*:nth-child(5){transition-delay:.36s}

/* page-hero kinetic (sub pages) */
.page-hero .en{overflow:hidden}
.page-hero .en .t{display:inline-block;transform:translateY(110%)}
.loaded .page-hero .en .t{animation:lineUp 1s cubic-bezier(.16,1,.3,1) both .12s}

/* service rows: animated index line */
.svc-row::after{content:"";position:absolute;left:0;bottom:-1px;height:1px;width:0;
  background:var(--accent);transition:width .5s cubic-bezier(.16,1,.3,1)}
.svc-row:hover::after{width:100%}

/* magnetic-ish CTA shine */
.btn--accent{position:relative}
.btn--accent::before{content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.35),transparent 70%);
  transform:translateX(-120%);transition:transform .7s cubic-bezier(.16,1,.3,1)}
.btn--accent:hover::before{transform:translateX(120%)}

@media (prefers-reduced-motion:reduce){
  .preloader{display:none}
  .hero__title .t,.hero [data-load],.page-hero .en .t{transform:none!important;opacity:1!important}
  .fx-noise{animation:none}
}