*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#000;--ink:#F4F3EF;--mut:#7E7D76;--mut2:#A9A8A0;
  --gold:#C9A15C;--gold2:#E3C88C;
  --gold-grad:linear-gradient(180deg,#F0D9A4 0%,#D4AC63 42%,#B98C3E 75%,#E3C88C 100%);
  --line:rgba(244,243,239,.10);--line2:rgba(244,243,239,.06);--card:#000;
}
html{scroll-behavior:smooth}
html,body{background:var(--bg);color:var(--ink);font-family:'Inter Tight',sans-serif;-webkit-font-smoothing:antialiased}
body{min-height:100svh;overflow-x:hidden}
::selection{background:rgba(201,161,92,.28)}

/* ---------- навигация (как на главном экране) ---------- */
.top-nav{position:absolute;top:clamp(20px,3.2vh,34px);left:50%;transform:translateX(-50%);z-index:60;display:flex;align-items:center;justify-content:center;gap:clamp(26px,3.4vw,46px);white-space:nowrap}
.top-nav a{position:relative;display:inline-flex;align-items:center;justify-content:center;padding:8px 0;color:#A9A8A0;text-decoration:none;font-size:20px;font-weight:600;line-height:1.2;transition:color .25s,transform .25s;cursor:pointer}
.top-nav a::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .32s cubic-bezier(.2,.7,.3,1)}
.top-nav a:hover,.top-nav a:focus-visible{color:var(--ink);outline:none}
.top-nav a:hover::after,.top-nav a:focus-visible::after{transform:scaleX(1)}
.burger{display:none;position:absolute;top:16px;right:16px;z-index:70;width:48px;height:48px;border:1px solid rgba(244,243,239,.14);border-radius:50%;background:rgba(0,0,0,.55);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);cursor:pointer}
.burger span{position:absolute;left:14px;width:20px;height:1.5px;background:var(--ink);border-radius:2px;transition:transform .3s cubic-bezier(.2,.7,.3,1),opacity .2s}
.burger span:nth-child(1){top:20px}
.burger span:nth-child(2){top:26px}
.burger span:nth-child(3){top:26px;opacity:0}
.burger.on span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.on span:nth-child(2){opacity:0}
.burger.on span:nth-child(3){opacity:1;transform:translateY(-6px) rotate(-45deg)}
.mobile-menu{position:fixed;inset:0;z-index:65;background:rgba(0,0,0,.96);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}
.mobile-menu.on{opacity:1;visibility:visible}
.mobile-menu a{color:var(--mut2);text-decoration:none;font-size:26px;font-weight:600;padding:12px 0;transition:color .25s}
.mobile-menu a:hover{color:var(--ink)}
.mobile-menu .mm-note{margin-top:26px;color:var(--mut);font-size:14px;font-weight:300;letter-spacing:.02em}

/* ---------- прогресс чтения ---------- */
.scroll-progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--gold-grad);z-index:90;transition:width .1s linear}

/* ---------- базовая типографика ---------- */
h1{font-family:'Unbounded';font-weight:700;font-size:clamp(46px,5.4vw,92px);line-height:1.06;letter-spacing:-.012em}
h1 em,h2 em{font-style:normal;font-weight:400;color:#C9A15C;background:var(--gold-grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
h2{font-family:'Unbounded';font-weight:700;font-size:clamp(30px,3.5vw,56px);line-height:1.12;letter-spacing:-.008em}
h3{font-family:'Unbounded';font-weight:700;font-size:clamp(20px,1.6vw,26px);line-height:1.25;letter-spacing:-.005em}
p{font-weight:300}
.lead{font-size:clamp(18px,1.5vw,23px);line-height:1.6;color:var(--mut2);font-weight:300}
.eyebrow{font-family:'Unbounded';font-weight:400;font-size:clamp(11px,1vw,13px);letter-spacing:.28em;text-transform:uppercase;color:var(--gold);display:inline-flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:0;height:0;border-left:9px solid var(--gold);border-top:5px solid transparent;border-bottom:5px solid transparent}
.num{font-family:'Unbounded';font-weight:900;font-size:clamp(38px,4.4vw,74px);line-height:1;background:var(--gold-grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.sub-note{color:var(--mut);font-size:clamp(15px,1.15vw,17px);line-height:1.6;font-weight:300}

/* ---------- кнопки (как на главном) ---------- */
.btn{position:relative;appearance:none;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:21px 34px;border:1px solid var(--ink);border-radius:100px;background:transparent;color:var(--ink);font-family:'Inter Tight',sans-serif;font-size:20px;font-weight:600;line-height:1.2;text-decoration:none;white-space:nowrap;cursor:pointer;transition:background .3s,color .3s,border-color .3s,transform .3s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--ink);color:#0B0B0B;font-weight:600}
.btn-primary:hover{background:transparent;color:var(--ink)}
.btn-secondary{background:transparent;color:var(--ink);font-weight:600}
.btn-secondary:hover{background:var(--ink);color:#0B0B0B}

/* ---------- экран-обложка ---------- */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:110px clamp(24px,3.4vw,64px) 70px;overflow:hidden;isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:0;overflow:hidden}
.hero-bg svg{width:100%;height:100%;display:block}
.hero-glow{position:absolute;left:50%;top:56%;transform:translate(-50%,-50%);width:min(1200px,90vw);aspect-ratio:1.6/1;background:radial-gradient(50% 50% at 50% 50%,rgba(201,161,92,.13),transparent 70%);z-index:1;pointer-events:none}
.hero .wrap{position:relative;z-index:4;width:min(100%,1180px);margin:0 auto;text-align:center}
.hero .sub{margin:30px auto 0;max-width:780px}
.hero-tags{margin-top:38px;display:flex;justify-content:center;gap:10px;flex-wrap:wrap}
.tag{padding:9px 16px;border:1px solid var(--line);border-radius:100px;color:var(--mut2);font-size:14px;font-weight:400;letter-spacing:.02em;background:rgba(255,255,255,.02)}
.scroll-hint{margin-top:46px;color:var(--mut);font-size:12px;letter-spacing:.24em;text-transform:uppercase;display:inline-flex;flex-direction:column;align-items:center;gap:10px}
.scroll-hint i{width:1px;height:44px;background:linear-gradient(180deg,var(--gold),transparent);animation:drop 2.2s ease-in-out infinite}
@keyframes drop{0%{transform:scaleY(.2);opacity:.4;transform-origin:top}50%{transform:scaleY(1);opacity:1;transform-origin:top}100%{transform:scaleY(.2);opacity:.3;transform-origin:bottom}}

/* ---------- секции ---------- */
.section{position:relative;padding:clamp(72px,9vw,140px) clamp(24px,3.4vw,64px);border-top:1px solid var(--line2)}
.container{width:min(100%,1180px);margin:0 auto}
.container.narrow{width:min(100%,860px)}
.section-head{max-width:820px}
.idea-section{min-height:100svh;display:flex;align-items:center;justify-content:center}
.section-head h2{margin-top:22px}
.section-head .lead{margin-top:24px}

.reveal{opacity:0;transform:translateY(22px);transition:opacity .75s cubic-bezier(.2,.7,.3,1),transform .75s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- контекст / задача ---------- */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,3vw,44px);margin-top:clamp(36px,4vw,56px)}
.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:clamp(26px,2.6vw,40px)}
.card h3{margin-bottom:16px}
.card p{color:var(--mut2);font-size:17px;line-height:1.65}
.task-list{margin-top:18px;list-style:none;display:grid;gap:12px}
.task-list li{position:relative;padding-left:24px;color:var(--ink);font-size:17px;font-weight:400;line-height:1.5}
.task-list li::before{content:"";position:absolute;left:0;top:.55em;width:0;height:0;border-left:8px solid var(--gold);border-top:4.5px solid transparent;border-bottom:4.5px solid transparent}

/* ---------- карта: скролл-сторителлинг ---------- */
.map-section{position:relative;padding:clamp(60px,7vw,110px) clamp(24px,3.4vw,64px) clamp(72px,8vw,120px);border-top:1px solid var(--line2)}
.map-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(320px,.85fr);gap:clamp(28px,3.4vw,64px);align-items:start}
.map-sticky{position:sticky;top:clamp(40px,8vh,86px)}
.map-card{position:relative;border:1px solid var(--line);border-radius:22px;overflow:hidden;background:#050505}
.map-card svg{display:block;width:100%;height:auto}
.map-hud{position:absolute;left:18px;right:18px;bottom:18px;display:flex;justify-content:space-between;align-items:center;gap:14px;padding:14px 18px;border:1px solid var(--line);border-radius:14px;background:rgba(5,5,5,.72);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.map-hud .hud-label{color:var(--mut);font-size:11px;letter-spacing:.22em;text-transform:uppercase}
.map-hud .hud-value{font-family:'Unbounded';font-weight:700;font-size:22px;letter-spacing:-.02em;margin-top:4px}
.hud-progress{flex:1 1 auto;height:2px;background:rgba(244,243,239,.12);border-radius:2px;overflow:hidden}
.hud-progress i{display:block;height:100%;width:0;background:var(--gold-grad)}
.route-line{stroke:#C9A15C;stroke-width:6;fill:none;stroke-linecap:round;stroke-linejoin:round}
.route-halo{stroke:rgba(201,161,92,.16);stroke-width:18;fill:none;stroke-linecap:round;stroke-linejoin:round}
.route-ghost{stroke:rgba(244,243,239,.13);stroke-width:2;stroke-dasharray:2 12;fill:none;stroke-linecap:round}
.pin-body{fill:#F4F3EF;stroke:#C9A15C;stroke-width:2}
.st-circle{fill:#0B0B0B;stroke:#C9A15C;stroke-width:2.5}
.st-inner{fill:#C9A15C}
.st-circle.done,.st-inner.done{stroke:#E3C88C;fill:#1A1408}
.st-inner.done{fill:#E3C88C}
.route-label{position:absolute;transform:translate(-50%,-50%);white-space:nowrap;padding:6px 10px;border:1px solid rgba(201,161,92,.4);border-radius:100px;background:rgba(6,6,6,.86);color:#E8DFCB;font-size:12px;font-weight:600;letter-spacing:.02em;opacity:0;transition:opacity .4s,transform .4s;pointer-events:none}
.route-label.on{opacity:1}
@media(max-width:700px){.route-label{font-size:9px;padding:3px 7px}#lbl0{display:none}}
.legend{display:flex;gap:18px;flex-wrap:wrap;margin-top:16px}
.legend span{display:inline-flex;align-items:center;gap:8px;color:var(--mut);font-size:13px;font-weight:300}
.legend i{width:10px;height:10px;border-radius:50%;border:2px solid var(--gold);background:#0B0B0B}
.legend i.dot{background:var(--gold);border-color:transparent}
.legend i.line{width:22px;height:0;border:0;border-top:2px solid var(--gold);border-radius:0}

.steps{list-style:none;display:grid;gap:clamp(14px,2.4vh,22px);counter-reset:s}
.steps li{position:relative;padding:clamp(18px,2vw,24px) clamp(20px,2vw,26px);border:1px solid rgba(244,243,239,.1);border-radius:18px;background:#000;opacity:.42;transition:opacity .45s,border-color .45s,background .45s,transform .45s}
.steps li.on{opacity:1;border-color:#C9A15C;background:#000;transform:translateX(4px)}
.steps .st-step{display:flex;align-items:center;gap:12px;color:var(--gold);font-family:'Unbounded';font-weight:400;font-size:11px;letter-spacing:.24em;text-transform:uppercase}
.steps .st-step b{font-weight:700;color:#E3C88C}
.steps h3{margin-top:10px}
.steps p{margin-top:10px;color:var(--mut2);font-size:16px;line-height:1.6}

/* ---------- фичи ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2vw,26px);margin-top:clamp(36px,4vw,54px)}
.feature{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:clamp(24px,2.4vw,34px);transition:border-color .35s,transform .35s,background .35s}
.feature:hover{border-color:rgba(201,161,92,.35);transform:translateY(-4px);background:#101010}
.feature .f-ico{width:52px;height:52px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(201,161,92,.35);border-radius:14px;color:var(--gold)}
.feature h3{margin-top:22px}
.feature p{margin-top:14px;color:var(--mut2);font-size:16px;line-height:1.62}
.feature ul{margin-top:16px;list-style:none;display:grid;gap:9px}
.feature li{position:relative;padding-left:20px;color:var(--mut2);font-size:15px;font-weight:300;line-height:1.5}
.feature li::before{content:"";position:absolute;left:0;top:8px;width:8px;height:1px;background:var(--gold)}
.pill-row{margin-top:18px;display:flex;gap:8px;flex-wrap:wrap}
.pill{padding:7px 13px;border:1px solid rgba(201,161,92,.28);border-radius:100px;color:#E8DFCB;font-size:13px;font-weight:400}

/* ---------- геймификация ---------- */
.game{margin-top:clamp(36px,4vw,54px);max-width:860px}
.badges{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.badge{border:1px solid var(--line);border-radius:18px;padding:20px 16px;text-align:center;background:linear-gradient(180deg,rgba(201,161,92,.07),rgba(255,255,255,.01));transition:transform .3s,border-color .3s}
.badge:hover{transform:translateY(-3px);border-color:rgba(201,161,92,.4)}
.badge .b-medal{width:56px;height:56px;margin:0 auto;border-radius:50%;display:flex;align-items:center;justify-content:center;border:1px solid rgba(201,161,92,.5);background:radial-gradient(circle at 50% 35%,rgba(240,217,164,.22),rgba(0,0,0,0) 62%);color:#E3C88C}
.badge b{display:block;margin-top:14px;font-size:15px;font-weight:600;line-height:1.3}
.badge span{display:block;margin-top:6px;color:var(--mut);font-size:12px;font-weight:300}
.badge.locked{opacity:.5}
.badge.locked .b-medal{border-style:dashed;color:var(--mut)}
.points-card{border:1px solid var(--line);border-radius:20px;padding:clamp(24px,2.4vw,32px);background:var(--card)}
.points-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px}
.points-value{font-family:'Unbounded';font-weight:700;font-size:clamp(38px,4vw,58px);line-height:1;background:var(--gold-grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.bar{margin-top:20px;height:6px;border-radius:6px;background:rgba(244,243,239,.1);overflow:hidden}
.bar i{display:block;height:100%;width:0;border-radius:6px;background:var(--gold-grad);transition:width 1.4s cubic-bezier(.2,.7,.3,1)}
.bar-labels{display:flex;justify-content:space-between;margin-top:10px;color:var(--mut);font-size:13px;font-weight:300}
.leader{margin-top:28px;list-style:none;display:grid;gap:2px}
.leader li{display:flex;align-items:center;gap:14px;padding:14px 4px;border-top:1px solid var(--line2);font-size:16px;font-weight:400}
.leader li:first-child{border-top:0}
.leader .pos{width:26px;color:var(--gold);font-family:'Unbounded';font-weight:700;font-size:14px}
.leader .nm{flex:1 1 auto}
.leader .sc{color:var(--mut2);font-weight:600}
.leader li.me{color:#E8DFCB}
.leader li.me .nm::after{content:" · это вы";color:var(--gold);font-weight:400;font-size:13px}
.exchange{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}

/* ---------- прототип ---------- */
.proto{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);gap:clamp(22px,2.6vw,38px);margin-top:clamp(36px,4vw,54px);align-items:start}
.proto-map{position:relative;border:1px solid var(--line);border-radius:22px;overflow:hidden;background:#050505}
.proto-map svg{display:block;width:100%;height:auto}
.st-btn{cursor:pointer}
.st-btn circle.hit{fill:transparent}
.st-btn:hover .st-ring{stroke:#E3C88C;stroke-width:3}
.st-btn.sel .st-ring{stroke:#F0D9A4;stroke-width:3.5}
.proto-route{stroke:#C9A15C;stroke-width:4;fill:none;stroke-linecap:round;stroke-linejoin:round}
.proto-panel{border:1px solid var(--line);border-radius:20px;padding:clamp(22px,2.2vw,30px);background:var(--card)}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.chip{appearance:none;cursor:pointer;padding:10px 15px;border:1px solid var(--line);border-radius:100px;background:transparent;color:var(--mut2);font-family:'Inter Tight',sans-serif;font-size:14px;font-weight:600;transition:.25s}
.chip:hover{color:var(--ink);border-color:rgba(244,243,239,.3)}
.chip.on{background:var(--ink);color:#0B0B0B;border-color:var(--ink)}
.stats{margin-top:24px;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.stat{border:1px solid var(--line2);border-radius:14px;padding:14px 12px}
.stat b{display:block;font-family:'Unbounded';font-weight:700;font-size:clamp(19px,1.8vw,24px);letter-spacing:-.02em}
.stat span{display:block;margin-top:6px;color:var(--mut);font-size:12px;font-weight:300;letter-spacing:.06em;text-transform:uppercase}
.proto-log{margin-top:22px;min-height:96px;border-top:1px solid var(--line2);padding-top:18px;color:var(--mut2);font-size:15px;line-height:1.6;font-weight:300}
.proto-log b{color:#E8DFCB;font-weight:600}
.hint{margin-top:14px;color:var(--mut);font-size:13px;font-weight:300}

/* ---------- UI/UX решения ---------- */
.rules{margin-top:clamp(30px,3.6vw,48px);border-top:1px solid var(--line2)}
.rule{display:grid;grid-template-columns:64px minmax(0,1fr);gap:clamp(16px,2vw,30px);padding:clamp(20px,2.4vw,30px) 0;border-bottom:1px solid var(--line2);align-items:baseline}
.rule h3{font-size:clamp(18px,1.5vw,23px)}
.rule p{margin-top:10px;color:var(--mut2);font-size:16px;line-height:1.6;max-width:720px}

/* ---------- результат ---------- */
.result{display:grid;grid-template-columns:1fr;gap:clamp(24px,3vw,44px);margin-top:clamp(34px,4vw,52px);max-width:860px}
.res-list{list-style:none;display:grid;gap:14px}
.res-list li{position:relative;padding-left:28px;font-size:18px;font-weight:400;line-height:1.55;color:var(--ink)}
.res-list li::before{content:"";position:absolute;left:0;top:.5em;width:0;height:0;border-left:9px solid var(--gold);border-top:5px solid transparent;border-bottom:5px solid transparent}
.res-note{border:1px solid rgba(201,161,92,.3);border-radius:20px;padding:clamp(26px,2.6vw,38px);background:linear-gradient(180deg,rgba(201,161,92,.08),rgba(255,255,255,.01))}
.res-note h3{margin-bottom:16px}
.res-note ul{list-style:none;display:grid;gap:11px;margin-top:6px}
.res-note li{color:var(--mut2);font-size:16px;font-weight:300;padding-left:20px;position:relative}
.res-note li::before{content:"—";position:absolute;left:0;color:var(--gold)}

/* ---------- CTA ---------- */
.cta-section{position:relative;min-height:100svh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:80px clamp(24px,3.4vw,64px) 90px;border-top:1px solid var(--line2)}
.copyright{position:absolute;bottom:26px;left:0;right:0;text-align:center;color:var(--mut);font-size:14px;font-weight:300;letter-spacing:.06em}
.cta-section h2{max-width:820px;margin:22px auto 0}
.cta-section .lead{max-width:640px;margin:22px auto 0}
.cta{margin-top:38px;display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}
.back-link{display:inline-flex;align-items:center;gap:10px;margin-top:44px;color:var(--mut);text-decoration:none;font-size:15px;font-weight:400;transition:color .25s}
.back-link:hover{color:var(--ink)}

/* ---------- адаптив ---------- */
@media(max-width:1024px){
  .map-grid{grid-template-columns:1fr}
  .map-sticky{position:relative;top:0}
  .steps-wrap{margin-top:26px}
  .proto{grid-template-columns:1fr}
}
@media(min-width:1025px){
  .map-grid{height:520vh}
  .map-sticky{position:sticky;top:70px;height:calc(100vh - 140px);display:flex;flex-direction:column;justify-content:center}
  .steps-wrap{position:sticky;top:70px;height:calc(100vh - 140px)}
  .steps{position:relative;height:100%;gap:0}
  .steps li{position:absolute;left:0;right:0;top:50%;transform:translateY(-46%);opacity:.1;pointer-events:none;transition:opacity .5s,transform .5s;z-index:1}
  .steps li.on{opacity:1;transform:translateY(-50%);z-index:3}
  .step-dots{display:flex}
}
.step-dots{display:none;position:absolute;left:0;right:0;bottom:6px;justify-content:center;gap:9px}
.step-dots i{width:8px;height:8px;border-radius:50%;background:rgba(244,243,239,.16);transition:background .3s,transform .3s}
.step-dots i.on{background:var(--gold);transform:scale(1.25)}
@media(max-width:1024px){
  .section,.map-section,.cta-section{padding-left:clamp(18px,4vw,34px);padding-right:clamp(18px,4vw,34px)}
  h1{font-size:clamp(38px,7vw,68px)}
  .duo,.grid-3,.game,.result{grid-template-columns:1fr}
}
@media(max-width:900px){
  .top-nav{display:none}
  .burger{display:block}
  .hero{padding:96px 20px 60px;min-height:100svh;justify-content:center}
  h1{font-size:clamp(34px,8.6vw,48px);letter-spacing:-.012em;line-height:1.1}
  .hero .sub{margin:20px auto 0;font-size:18px}
  .hero-tags{margin-top:26px}
  .scroll-hint{margin-top:34px}
  .grid-3,.badges,.stats{grid-template-columns:1fr 1fr}
  .rule{grid-template-columns:1fr;gap:8px}
  .rule .num{font-size:34px}
  .map-hud{position:relative;left:auto;right:auto;bottom:auto;margin:12px 12px 14px;padding:11px 13px}
  .map-hud .hud-value{font-size:17px}
  .route-label{font-size:9px;padding:3px 7px}
}
@media(max-width:560px){
  .badges,.stats{grid-template-columns:1fr}
  .btn{width:100%;flex:1 1 100%;padding:16px 14px;font-size:17px;white-space:normal;text-align:center}
  .cta{gap:12px}
  .steps li{padding:18px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
}

/* ---------- 3D-сцена (вырезанная модель, без фона и UI) ---------- */
.stage3d{position:relative;width:100%;height:min(74vh,720px)}
#app{position:absolute;inset:0;opacity:0;transition:opacity .9s ease}
#app.ready{opacity:1}
#app canvas{display:block;width:100%;height:100%;touch-action:pan-y}
/* чистый кроссфейд шагов: неактивные карточки полностью скрыты */
.design-grid .steps li{opacity:0}
.design-grid .steps li.on{opacity:1}
@media(min-width:1025px){
  .map-grid.design-grid{height:430vh}
  .design-grid .map-sticky{top:70px;height:calc(100vh - 140px)}
}
@media(max-width:1024px){
  /* сцена и панель шагов закреплены: карточки не ездят под моделью, а сменяются кроссфейдом */
  .map-grid.design-grid{display:block;height:420vh}
  .design-grid .map-sticky{position:sticky;top:0;z-index:6;height:48svh;background:var(--bg)}
  .stage3d{height:100%}
  .design-grid .steps-wrap{position:sticky;top:48svh;height:52svh;margin-top:0;padding:12px 2px 0}
  .design-grid .steps{position:relative;height:100%;gap:0}
  .design-grid .steps li{position:absolute;left:0;right:0;top:50%;transform:translateY(-46%);
    margin:0;padding:18px 20px;pointer-events:none}
  .design-grid .steps li.on{opacity:1;transform:translateY(-50%)}
  .design-grid .steps p{font-size:15px;line-height:1.55;margin-top:8px}
  .design-grid .steps .st-step{font-size:10px;letter-spacing:.2em}
  .design-grid .step-dots{display:flex}
}

.design-controls,.design-mobile-copy{display:none}
@media(max-width:1024px){
 .design-desktop-copy{display:none}.design-mobile-copy{display:inline}
 .map-grid.design-grid{height:auto;min-height:0}
 .design-grid .map-sticky{position:relative;top:auto;height:clamp(280px,48svh,520px)}
 .design-grid .steps-wrap{position:relative;top:auto;height:auto;margin:0;padding:16px 0 0}
 .design-grid .steps{height:auto;display:grid;grid-template-columns:minmax(0,1fr)}
 .design-grid .steps li{position:relative;grid-area:1/1;top:auto;left:auto;right:auto;transform:none!important;visibility:hidden;opacity:0;margin:0;align-self:stretch}
 .design-grid .steps li.on{visibility:visible;opacity:1;pointer-events:auto}
 .design-grid .step-dots{display:none}
 .design-controls{display:flex;align-items:center;justify-content:center;gap:24px;margin-top:18px}
 .design-controls button{width:48px;height:48px;border-radius:50%;border:1px solid #C9A15C;background:#000;color:#fff;font-size:24px;cursor:pointer;display:grid;place-items:center;padding:0;line-height:1}
 .design-controls button:disabled{opacity:.3;cursor:default}
 .design-controls button:focus-visible{outline:2px solid #fff;outline-offset:4px}
 .design-controls span{font-family:'Inter Tight',sans-serif;font-size:16px;color:#E3C88C;font-variant-numeric:tabular-nums}
}

/* Mobile: the shirt must never trap native vertical page gestures.
   Rotation is controlled by the step arrows; desktop dragging is unchanged. */
@media(max-width:1024px){
 .design-grid .map-sticky{height:clamp(220px,38svh,420px)}
 .design-grid .stage3d{touch-action:pan-y pinch-zoom}
 .design-grid #app,.design-grid #app canvas{pointer-events:none!important;touch-action:pan-y pinch-zoom!important}
 .design-controls{scroll-margin-bottom:24px}
}