/* ======================================================================
   ZAUNTURA — ABLAUF "Flow" (interactive, cinematic) · loaded last
   Dark stage · auto-advancing clickable stepper · drawing rail + ring
   timer · crossfading visual stage. Warm walnut + bronze.
   ====================================================================== */
#ablauf.flow{position:relative;background:#1B1714;border-block:1px solid var(--line)}
#ablauf.flow{--line:rgba(232,224,210,.12);--text:#F4EFE6;--text-dim:#A99F90;--bronze:185,139,69}
.flow-head{padding-top:clamp(84px,11vw,150px);padding-bottom:8px}
.flow-track{position:relative;height:calc(100vh + 268vh)}
.flow-pin{position:sticky;top:0;height:100vh;min-height:640px;display:flex;align-items:center;
  overflow:hidden;padding-bottom:clamp(40px,7vw,90px)}
.flow-aurora{position:absolute;inset:0;z-index:0;pointer-events:none}
.flow-aurora::before{content:"";position:absolute;width:55vw;height:55vw;left:-10%;top:-20%;border-radius:50%;
  filter:blur(90px);opacity:.5;background:radial-gradient(circle at 40% 40%,rgba(var(--bronze),.4),transparent 62%);
  animation:flAur 26s ease-in-out infinite alternate}
.flow-aurora::after{content:"";position:absolute;width:46vw;height:46vw;right:-8%;bottom:-18%;border-radius:50%;
  filter:blur(90px);opacity:.4;background:radial-gradient(circle at 50% 50%,rgba(90,168,156,.22),transparent 60%);
  animation:flAur2 32s ease-in-out infinite alternate}
@keyframes flAur{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(10%,8%,0) scale(1.2)}}
@keyframes flAur2{from{transform:translate3d(0,0,0) scale(1.05)}to{transform:translate3d(-8%,-10%,0) scale(.9)}}
#ablauf.flow .wrap{position:relative;z-index:1}
#ablauf.flow .shead .h2{color:#F8F5EE}
#ablauf.flow .eyebrow{color:rgba(244,239,230,.7)}
#ablauf.flow .lead{color:rgba(244,239,230,.66)}

.flow-grid{display:grid;grid-template-columns:1fr 1.08fr;gap:clamp(34px,5vw,72px);align-items:center}
/* scroll-driven: rail fill is continuous (no transition needed during scrub) */
.flow-step{transition:opacity .45s ease,background .4s ease,transform .5s cubic-bezier(.16,1,.3,1)}
@media (max-width:900px){
  .flow-track{height:auto}
  .flow-pin{position:relative;top:auto;height:auto;min-height:0;display:block;padding-bottom:0}
  /* mobile: single-column vertical timeline; drop the big rotating image —
     each step already carries its own number/title/text. */
  .flow-grid{grid-template-columns:1fr;gap:0}
  .flow-stage{display:none}
  .flow-step{opacity:1;cursor:default;padding:14px 4px}
  .flow-step.active{background:transparent}
  .flow-step:hover{opacity:1}
}

/* ---- left: stepper ---- */
.flow-steps{list-style:none;margin:0;padding:0;position:relative}
.flow-rail{position:absolute;left:24px;top:34px;bottom:34px;width:2px;background:rgba(232,224,210,.14);z-index:0;border-radius:2px}
.flow-rail-fill{position:absolute;left:0;top:0;width:100%;height:0;border-radius:2px;
  background:linear-gradient(180deg,rgb(var(--bronze)),#E8C58A);
  box-shadow:0 0 14px rgba(var(--bronze),.5)}
.flow-step{position:relative;z-index:1;display:grid;grid-template-columns:50px 1fr;gap:20px;align-items:start;
  padding:18px 16px 18px 0;cursor:pointer;border-radius:16px;opacity:.46;
  transition:opacity .5s ease,background .4s ease,transform .5s cubic-bezier(.16,1,.3,1)}
.flow-step:hover{opacity:.8}
.flow-step.active{opacity:1;background:rgba(255,255,255,.035)}
.flow-node{position:relative;width:50px;height:50px;border-radius:50%;flex:none;
  display:flex;align-items:center;justify-content:center;background:#241F19;
  border:1px solid rgba(232,224,210,.2);transition:border-color .4s,background .4s,transform .5s cubic-bezier(.16,1,.3,1)}
.flow-step.active .flow-node{border-color:rgb(var(--bronze));background:rgba(var(--bronze),.16);transform:scale(1.06)}
.flow-step.done .flow-node{border-color:rgba(var(--bronze),.5);background:rgba(var(--bronze),.1)}
.fn-num{font-family:var(--font-display);font-size:14px;font-weight:600;color:rgba(244,239,230,.6);transition:color .4s}
.flow-step.active .fn-num{color:#F4EFE6}
.flow-step.done .fn-num{opacity:0}
.fn-check{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;
  color:rgb(var(--bronze));transition:opacity .4s}
.fn-check svg{width:18px;height:18px}
.flow-step.done .fn-check{opacity:1}
/* ring timer */
.fn-ring{position:absolute;inset:-4px;transform:rotate(-90deg);pointer-events:none}
.fn-ring circle{fill:none;stroke-width:2}
.fn-ring .rg-bg{stroke:transparent}
.fn-ring .rg-fg{stroke:rgb(var(--bronze));stroke-dasharray:1;stroke-dashoffset:1;opacity:0}
.flow-step.active .fn-ring .rg-fg{opacity:1;animation:fnRing var(--dur,4400ms) linear forwards}
@keyframes fnRing{from{stroke-dashoffset:1}to{stroke-dashoffset:0}}

.flow-body .st-phase{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-display);
  font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:rgb(var(--bronze));margin-bottom:7px}
.flow-body h3{font-family:var(--font-display);font-size:clamp(19px,1.8vw,23px);font-weight:600;
  letter-spacing:-.01em;margin:0 0 8px;color:#F4EFE6}
.flow-body p{font-size:14.5px;line-height:1.6;color:rgba(244,239,230,.62);margin:0;max-width:42ch}

/* ---- right: visual stage ---- */
.flow-stage{position:relative;aspect-ratio:4/3.2;border-radius:var(--r-card,18px);overflow:hidden;
  border:1px solid rgba(232,224,210,.14);background:#15110E;box-shadow:0 40px 100px -40px rgba(0,0,0,.7)}
.flow-card{position:absolute;inset:0;opacity:0;transform:scale(1.06);pointer-events:none;
  transition:opacity .8s ease,transform 1.1s cubic-bezier(.16,1,.3,1)}
.flow-card.on{opacity:1;transform:none;pointer-events:auto}
.flow-card image-slot,.flow-card>img{position:absolute;inset:0;width:100%;height:100%;display:block}
.flow-card .fc-grad{position:absolute;inset:0;z-index:1;
  background:linear-gradient(0deg,rgba(14,11,9,.92),rgba(14,11,9,.2) 46%,rgba(14,11,9,.4))}
.fc-top{position:absolute;top:18px;left:18px;right:18px;z-index:2;display:flex;align-items:flex-start;justify-content:space-between;gap:14px}
.fc-phase{font-family:var(--font-display);font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:#F4EFE6;background:rgba(14,11,9,.5);border:1px solid rgba(232,224,210,.16);border-radius:9999px;
  padding:7px 13px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.fc-badge{width:48px;height:48px;border-radius:14px;flex:none;display:flex;align-items:center;justify-content:center;
  background:rgba(var(--bronze),.18);border:1px solid rgba(var(--bronze),.4);color:#E8C58A;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.fc-badge svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.5}
.fc-bottom{position:absolute;left:24px;right:24px;bottom:22px;z-index:2}
.fc-bottom h4{font-family:var(--font-display);font-size:clamp(22px,2.4vw,30px);font-weight:600;letter-spacing:-.01em;
  margin:0 0 10px;color:#fff}
.fc-feats{display:flex;flex-wrap:wrap;gap:8px}
.fc-feats span{font-family:var(--font-display);font-size:11.5px;color:rgba(244,239,230,.82);
  background:rgba(255,255,255,.08);border:1px solid rgba(232,224,210,.16);border-radius:9999px;padding:6px 12px}
/* progress dots */
.flow-dots{position:absolute;bottom:22px;right:24px;z-index:3;display:flex;gap:7px}
.flow-dots i{width:7px;height:7px;border-radius:50%;background:rgba(244,239,230,.3);transition:.4s;cursor:pointer}
.flow-dots i.on{background:rgb(var(--bronze));width:22px;border-radius:9999px}

/* ---- pro enhancements ---- */
/* sparks */
.flow-spark{position:absolute;width:3px;height:3px;border-radius:50%;background:rgba(232,197,138,.8);
  box-shadow:0 0 8px 2px rgba(var(--bronze),.5);z-index:0;opacity:0;animation:flSpark linear infinite}
@keyframes flSpark{0%{opacity:0;transform:translateY(20px) scale(.6)}15%{opacity:.9}85%{opacity:.6}100%{opacity:0;transform:translateY(-60px) scale(1)}}

/* ken burns on active photo */
.flow-card image-slot,.flow-card>img{transform-origin:62% 42%}
.flow-card.on image-slot,.flow-card.on>img{animation:fcKen 8s ease-out both}
@keyframes fcKen{from{transform:scale(1)}to{transform:scale(1.14)}}

/* 3D tilt */
.flow-stage{transform:perspective(1100px) rotateX(0) rotateY(0);transform-style:preserve-3d;
  transition:transform .4s ease,box-shadow .5s}
.flow-card .fc-top,.flow-card .fc-bottom{transform:translateZ(30px)}

/* staggered content reveal per active step */
.fc-phase,.fc-badge,.fc-bottom h4,.fc-feats span{opacity:0;transform:translateY(16px);
  transition:opacity .6s ease,transform .7s cubic-bezier(.16,1,.3,1)}
.flow-card.on .fc-phase{opacity:1;transform:translateY(0);transition-delay:.18s}
.flow-card.on .fc-badge{opacity:1;transform:translateY(0);transition-delay:.26s}
.flow-card.on .fc-bottom h4{opacity:1;transform:translateY(0);transition-delay:.34s}
.flow-card.on .fc-feats span{opacity:1;transform:translateY(0)}
.flow-card.on .fc-feats span:nth-child(1){transition-delay:.44s}
.flow-card.on .fc-feats span:nth-child(2){transition-delay:.52s}
.flow-card.on .fc-feats span:nth-child(3){transition-delay:.60s}
.fc-badge{will-change:transform}
.flow-card.on .fc-badge{animation:fcBadge 4s ease-in-out .4s infinite}
@keyframes fcBadge{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}

/* traveling glow on the rail */
.flow-rail-glow{position:absolute;left:50%;top:0;width:13px;height:13px;border-radius:50%;
  transform:translate(-50%,-50%);background:#E8C58A;box-shadow:0 0 18px 5px rgba(var(--bronze),.7);
  transition:top .7s cubic-bezier(.16,1,.3,1);z-index:2}

/* timer progress bar inside the stage */
.flow-timer{position:absolute;left:0;right:0;bottom:0;height:3px;background:rgba(232,224,210,.12);z-index:4}
.flow-timer i{display:block;height:100%;width:0;background:linear-gradient(90deg,rgb(var(--bronze)),#E8C58A);
  box-shadow:0 0 12px rgba(var(--bronze),.6)}
.flow-timer i.run{animation:flTimer var(--dur,4400ms) linear forwards}
@keyframes flTimer{from{width:0}to{width:100%}}

/* big ghost step number in the stage */
.flow-bignum{position:absolute;top:14px;right:18px;z-index:2;font-family:var(--font-display);
  font-weight:700;font-size:64px;line-height:1;color:transparent;-webkit-text-stroke:1px rgba(244,239,230,.18);
  letter-spacing:-.02em;pointer-events:none;transition:opacity .5s}

@media (max-width:900px){.flow-stage{transform:none!important}.flow-card .fc-top,.flow-card .fc-bottom{transform:none}}

@media (prefers-reduced-motion:reduce){
  .flow-aurora::before,.flow-aurora::after,.flow-spark,.flow-card.on image-slot,.flow-card.on>img,.flow-card.on .fc-badge,.flow-timer i.run{animation:none}
  .flow-step.active .fn-ring .rg-fg{animation:none;stroke-dashoffset:0}
  .flow-card{transition:opacity .3s}
  .fc-phase,.fc-badge,.fc-bottom h4,.fc-feats span{opacity:1;transform:none}
}