/* USTIN — сайт. Цвета «Бетон и шёлк» (app/lib/theme/tokens.dart), свет и подача — в духе igloo.inc (notes-igloo.md):
   один тёмный кадр с туманным светом, крупный заголовок, всё остальное — мелкий моно с индексами, много воздуха.
   Углы острые (радиус 2). Шкала отступов кратна 8. */
:root{
  --void:#0F1112; --concrete-deep:#191B1C; --concrete:#222526; --concrete-mid:#2C3031; --seam:#3A3F41;
  --jade:#19BD8B; --jade-deep:#0C7A5B; --jade-bright:#41E0AF;
  --silk:#E9E7E1; --ash:#9BA09C; --ash-dim:#6E736F; /* ash чуть светлее приложения: контраст мелкого текста на void ≥ 4.5:1 */
  --frost:#CFE6F0; --danger:#E0604E; --work:#FF5A36; --stretch:#5C9BEF;
  --p:0; --health:0;
  --hud:56px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:var(--hud)}
body{background:var(--void);color:var(--silk);font-family:'Golos Text',system-ui,sans-serif;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
/* зерно по всему кадру; на десктопе чуть «дышит» */
body::after{content:"";position:fixed;inset:-50%;pointer-events:none;z-index:90;opacity:.07;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
  animation:grain 1.2s steps(6) infinite}
@keyframes grain{0%{transform:translate(0,0)}20%{transform:translate(-3%,2%)}40%{transform:translate(2%,-4%)}60%{transform:translate(-4%,-1%)}80%{transform:translate(3%,3%)}100%{transform:translate(0,0)}}
a{color:inherit}
.mono{font-family:'JetBrains Mono',ui-monospace,monospace;font-size:12px;letter-spacing:.06em;line-height:1.55}
h1,h2,h3{font-family:'Oswald',sans-serif;text-transform:uppercase;font-weight:600;letter-spacing:.01em;line-height:.95}
.wrap{max-width:1200px;margin:0 auto;padding:0 48px}
.skip{position:absolute;left:8px;top:-60px;z-index:200;background:var(--jade);color:var(--void);padding:12px 16px;font-weight:600}
.skip:focus{top:8px}
:focus-visible{outline:2px solid var(--jade-bright);outline-offset:3px}

/* ═════════ ШАПКА ═════════ */
.hud{position:fixed;left:0;right:0;top:0;height:var(--hud);z-index:50;display:flex;align-items:center;justify-content:space-between;padding:0 32px;
  background:linear-gradient(180deg,rgba(15,17,18,.85),rgba(15,17,18,0));pointer-events:none}
.hud>*{pointer-events:auto}
.logo{font-family:'Oswald';font-weight:700;font-size:22px;letter-spacing:.06em;text-decoration:none;color:var(--silk)}
.hud-nav{display:flex;gap:4px}
.hud-nav a{text-decoration:none;color:var(--ash);padding:12px 10px;min-height:44px;display:inline-flex;align-items:center;gap:6px;transition:color .2s}
.hud-nav a i{font-style:normal;color:var(--ash-dim)}
.hud-nav a:hover,.hud-nav a.on{color:var(--silk)} .hud-nav a.on i{color:var(--jade-bright)}
.hud-nav .hud-cta{color:var(--jade-bright)}

/* ═════════ ГЛАВНАЯ СЦЕНА ═════════ */
#scene{position:relative;height:1100vh}
.stage{position:sticky;top:0;height:100vh;height:100dvh;overflow:hidden;background:var(--void)}
/* туманный свет за телом (как дымка igloo): в начале тёплый тревожный, к концу — холодно-нефритовый */
.haze{position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(30% 44% at var(--cx,68%) 48%, rgba(233,231,225,.10), transparent 70%),
    radial-gradient(36% 50% at var(--cx,68%) 50%, rgba(224,96,78,calc(.30 * (1 - var(--health)))), transparent 72%),
    radial-gradient(40% 56% at var(--cx,68%) 52%, rgba(65,224,175,calc(.22 * var(--health))), transparent 74%),
    radial-gradient(120% 60% at 50% 110%, rgba(207,230,240,.07), transparent 60%)}
.view{position:absolute;inset:0}
.view canvas:not(.poster){position:absolute;inset:0;width:100%!important;height:100%!important;display:block}
.poster{position:absolute;left:var(--cx,68%);top:50%;height:80%;aspect-ratio:9/16;width:auto;transform:translate(-50%,-50%);display:block}
#poster-b{opacity:0}
.view.live .poster{display:none}
.load{position:absolute;left:var(--cx,68%);bottom:6%;transform:translateX(-50%);color:var(--ash);white-space:nowrap}
.load.gone{display:none}
.credit{position:absolute;right:32px;bottom:20px;font-size:10px;color:var(--ash-dim);text-decoration:none;z-index:4}

/* выносная линия от подписи к точке тела */
.callout-line{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:3;overflow:visible}
.callout-line line{stroke:var(--frost);stroke-width:1;opacity:.55}
.callout-line circle{fill:none;stroke:var(--frost);stroke-width:1.2}

/* «жалобы» — пульсирующие точки на суставах, пока тело воспалено */
.spots{position:absolute;inset:0;pointer-events:none;z-index:2;--pain:1}
.spot{position:absolute;left:0;top:0}
.spot::before,.spot::after{content:"";position:absolute;left:0;top:0;border-radius:50%;transform:translate(-50%,-50%)}
.spot::before{width:calc(10px + 24px * var(--pain));height:calc(10px + 24px * var(--pain));
  background:radial-gradient(circle,rgba(255,90,54,calc(.8 * var(--pain))) 0,rgba(224,96,78,calc(.3 * var(--pain))) 45%,transparent 70%);
  animation:pulse 1.4s ease-in-out infinite}
.spot::after{width:5px;height:5px;background:var(--danger);opacity:var(--pain)}
@keyframes pulse{0%,100%{transform:translate(-50%,-50%) scale(.75);opacity:.7}50%{transform:translate(-50%,-50%) scale(1.15);opacity:1}}

/* первый экран */
.hero{position:absolute;left:48px;top:0;bottom:0;width:min(560px,44vw);display:flex;flex-direction:column;justify-content:center;z-index:5;
  opacity:calc(1 - var(--p) * 40);transform:translate3d(0,calc(var(--p) * -1200px),0);visibility:var(--hero-vis,visible)}
.kicker{color:var(--jade-bright);text-transform:uppercase}
.hero h1{font-size:clamp(96px,13vw,208px);font-weight:700;margin:16px 0 24px;letter-spacing:-.01em;
  background:linear-gradient(180deg,#fff 20%,rgba(233,231,225,.55));-webkit-background-clip:text;background-clip:text;color:transparent}
.offer{font-size:clamp(17px,1.35vw,20px);line-height:1.6;color:var(--silk);max-width:30em}
.offer b{color:var(--jade-bright);font-weight:600;white-space:nowrap}
.hero-actions{display:flex;align-items:center;gap:24px;margin-top:32px;flex-wrap:wrap}
.hint{color:var(--ash)}

/* подпись этапа */
.caption{position:absolute;left:48px;bottom:88px;width:min(400px,32vw);z-index:5;opacity:0;transition:opacity .4s ease}
.caption.on{opacity:1}
.cap-k{color:var(--frost);text-transform:uppercase}
.cap-k #cap-i{color:var(--jade-bright)}
.caption h2{font-size:clamp(34px,3.4vw,54px);margin:12px 0 8px}
.cap-sa{color:var(--ash);min-height:1.2em}
.cap-p{color:var(--ash);font-size:16px;line-height:1.6;margin-top:16px}
.cap-m{margin-top:16px;color:var(--ash)}
.cap-m .w{color:var(--work)} .cap-m .s{color:var(--stretch)}

.rail{position:absolute;left:48px;top:calc(var(--hud) + 24px);list-style:none;z-index:4;display:flex;flex-direction:column;gap:6px;color:var(--ash-dim);
  opacity:min(1, calc(var(--p) * 40));font-size:11px}
.rail li{display:flex;align-items:center;gap:10px;transition:color .3s}
.rail li::before{content:"";width:12px;height:1px;background:currentColor;transition:width .3s}
.rail li.on{color:var(--silk)} .rail li.on::before{width:28px;background:var(--jade-bright)}
.meter{position:absolute;right:32px;top:50%;transform:translateY(-50%) rotate(90deg);transform-origin:right center;display:flex;align-items:center;gap:12px;color:var(--ash);z-index:4;font-size:11px}
.meter i{display:block;width:120px;height:1px;background:linear-gradient(90deg,var(--jade-bright) calc(var(--p) * 100%),var(--seam) 0)}
.honest{position:absolute;left:48px;bottom:24px;font-size:11px;color:var(--ash-dim);z-index:4;max-width:60vw}

/* ═════════ ВАРИАНТ B: кадр по центру во весь рост, заголовок поверх снизу, индексы сбоку ═════════ */
[data-layout="b"] .stage{--cx:50%}
[data-layout="b"] .poster{height:92%;top:52%}
[data-layout="b"] .hero{left:0;right:0;width:auto;top:auto;bottom:40px;padding:0 48px;justify-content:flex-end;align-items:center;text-align:center;
  background:linear-gradient(0deg,rgba(15,17,18,.92) 30%,rgba(15,17,18,0));padding-top:160px}
[data-layout="b"] .hero h1{font-size:clamp(88px,15vw,240px);margin:8px 0 12px}
[data-layout="b"] .offer{max-width:40em;margin:0 auto}
[data-layout="b"] .hero-actions{justify-content:center}
[data-layout="b"] .rail{opacity:1;top:50%;transform:translateY(-50%)}
[data-layout="b"] .caption{width:min(340px,26vw)}

/* ═════════ СЕКЦИИ: мало, с воздухом ═════════ */
.sec{padding:200px 0 160px;position:relative}
.sec+.sec{border-top:1px solid var(--seam)}
.idx{color:var(--jade-bright);text-transform:uppercase}
.big-h{font-size:clamp(48px,7vw,112px);margin:24px 0 48px;font-weight:700}
.lead{font-size:clamp(17px,1.4vw,20px);line-height:1.65;color:var(--ash);max-width:36em}

.hours{margin-top:112px}
.hours-bar{position:relative;height:1px;background:var(--seam)}
.hours-bar i{position:absolute;left:0;top:-1px;height:3px;width:calc(var(--fill,0) * 100%);background:linear-gradient(90deg,var(--jade-deep),var(--jade-bright));box-shadow:0 0 24px rgba(65,224,175,.55)}
.steps{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:48px;margin-top:32px;color:var(--ash);font-size:16px}
.steps li{position:relative;padding-top:8px}
.steps li::before{content:"";position:absolute;left:0;top:-38px;width:9px;height:9px;border:1px solid var(--jade-bright);background:var(--void);transform:rotate(45deg)}
.steps span{display:block;color:var(--jade-bright);margin-bottom:8px}
.steps b{display:block;font-family:'Oswald';text-transform:uppercase;font-weight:600;font-size:24px;color:var(--silk);margin-bottom:8px;letter-spacing:.02em}

.feats{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:0 96px}
.feats li{padding:40px 0;border-top:1px solid var(--seam);display:grid;grid-template-columns:72px 1fr;gap:0 16px}
.feats li span{color:var(--ash-dim);grid-row:span 2;padding-top:6px}
.feats h3{font-size:26px;margin-bottom:12px}
.feats p{color:var(--ash)}
.feats a{color:var(--jade-bright)}

.join{display:grid;grid-template-columns:1.2fr 1fr;gap:96px;align-items:end}
.price{margin:24px 0 32px;display:flex;align-items:baseline;gap:16px;flex-wrap:wrap}
.price .num{font-family:'JetBrains Mono';font-weight:500;font-size:clamp(80px,10vw,152px);letter-spacing:-.04em;color:var(--silk);line-height:.9}
.price .unit{font-size:24px;color:var(--ash)}
.join .lead{margin-bottom:40px}
.note{color:var(--ash);margin-top:16px}
.join-side{display:flex;flex-direction:column;gap:40px}
.ref{border-left:1px solid var(--jade-deep);padding-left:24px}
.ref p:last-child{margin-top:12px;color:var(--silk)}
.ref b{color:var(--jade-bright)}
.stores{display:flex;gap:12px;flex-wrap:wrap}
.store{display:inline-flex;flex-direction:column;border:1px solid var(--seam);padding:10px 18px;font-family:'Oswald';text-transform:uppercase;font-size:17px;color:var(--ash);border-radius:2px;min-height:48px}
.store small{color:var(--ash-dim);text-transform:lowercase}
.free{color:var(--ash)}
.free a{color:var(--jade-bright)}

.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;background:var(--jade);color:var(--void);font-family:'Oswald';font-weight:600;text-transform:uppercase;border-radius:2px;
  font-size:17px;letter-spacing:.06em;padding:0 36px;text-decoration:none;border:none;cursor:pointer;touch-action:manipulation;transition:background .15s,box-shadow .25s,transform .1s}
.btn:hover{background:var(--jade-bright);box-shadow:0 0 40px rgba(65,224,175,.35)}
.btn:active{transform:scale(.98)}
.btn[disabled]{opacity:.6;cursor:progress}
.btn.wide{width:100%}

.foot{padding:64px 0 80px;border-top:1px solid var(--seam)}
.foot-in{display:grid;grid-template-columns:auto 1fr;gap:24px 48px;align-items:center}
.foot-links{display:flex;flex-wrap:wrap;gap:0 8px;justify-content:flex-end}
.foot-links a{color:var(--ash);text-decoration:none;padding:12px 8px;min-height:44px;display:inline-flex;align-items:center}
.foot-links a:hover{color:var(--silk)}
.foot-note{grid-column:1/-1;color:var(--ash-dim);border-top:1px solid var(--seam);padding-top:24px}

.modal{position:fixed;inset:0;background:rgba(10,11,12,.86);z-index:120;display:flex;align-items:center;justify-content:center;padding:16px}
.modal[hidden]{display:none}
.modal-box{background:var(--concrete);border:1px solid var(--seam);max-width:400px;width:100%;padding:32px}
.modal-t{font-size:24px;margin-bottom:8px}
.modal-p{color:var(--ash);margin-bottom:16px}
.modal label{display:block;color:var(--ash);margin:12px 0 6px}
.modal input{width:100%;background:var(--concrete-deep);border:1px solid var(--seam);color:var(--silk);padding:12px;font-family:'JetBrains Mono';font-size:16px;outline:none;border-radius:2px;min-height:48px}
.modal input:focus{border-color:var(--jade)}
.pm-ref{color:var(--jade-bright);margin-top:12px}
.pm-err{color:var(--danger);margin:12px 0;min-height:18px}
.pm-close{width:100%;min-height:44px;background:none;border:none;color:var(--ash);margin-top:8px;cursor:pointer}

.reveal{opacity:0;transform:translateY(32px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal.on{opacity:1;transform:none}

/* ═════════ ПЛАНШЕТ ═════════ */
@media (max-width:1024px){
  .wrap{padding:0 32px}
  .join{grid-template-columns:1fr;gap:64px}
  .feats{gap:0 48px}
}

/* ═════════ ТЕЛЕФОН: одна колонка — сцена сверху, подпись снизу ═════════ */
@media (max-width:700px){
  :root{--hud:52px}
  body::after{animation:none;opacity:.05}
  .hud{padding:0 16px}
  .hud-nav a:not(.hud-cta){display:none}
  #scene{height:1000vh}
  .stage{--cx:50%}
  .view{inset:var(--hud) 0 38dvh 0}
  .haze{bottom:38dvh}
  .poster{height:96%}
  .hero,[data-layout="b"] .hero{left:0;right:0;width:auto;top:auto;bottom:0;padding:120px 16px 32px;justify-content:flex-end;align-items:flex-start;text-align:left;
    background:linear-gradient(0deg,var(--void) 55%,rgba(15,17,18,0))}
  .hero h1,[data-layout="b"] .hero h1{font-size:clamp(72px,24vw,112px);margin:8px 0 12px}
  .offer{font-size:16px}
  .hero-actions,[data-layout="b"] .hero-actions{margin-top:20px;gap:12px;justify-content:flex-start}
  .hero .btn{width:100%}
  /* вариант B на телефоне: кадр крупнее, текст по центру поверх низа кадра */
  [data-layout="b"] .hero{align-items:center;text-align:center;padding-top:200px}
  [data-layout="b"] .hero-actions{justify-content:center}
  [data-layout="b"] .poster{height:100%;top:50%}
  [data-layout="b"] .view{bottom:30dvh}
  .caption,[data-layout="b"] .caption{left:0;right:0;bottom:0;width:auto;height:38dvh;padding:20px 16px 40px;border-top:1px solid var(--seam);background:var(--void)}
  .caption h2{font-size:30px;margin:8px 0 4px}
  .cap-p{font-size:16px;margin-top:10px;line-height:1.5}
  .cap-m{margin-top:10px;font-size:11px}
  .rail,.meter{display:none}
  .honest{left:16px;bottom:12px;font-size:10px;max-width:none}
  .credit{right:12px;bottom:calc(38dvh + 8px);font-size:10px}
  .credit .long{display:none}
  .callout-line{display:none}
  .sec{padding:120px 0 96px}
  .wrap{padding:0 16px}
  .big-h{margin:16px 0 32px}
  .hours{margin-top:72px}
  .steps{grid-template-columns:1fr;gap:32px;margin-top:0;padding-left:24px;border-left:1px solid var(--seam)}
  .hours-bar{display:none}
  .steps li::before{left:-29px;top:14px}
  .feats{grid-template-columns:1fr}
  .feats li{grid-template-columns:56px 1fr;padding:28px 0}
  .feats h3{font-size:22px}
  .join .btn{width:100%}
  .foot-in{grid-template-columns:1fr}
  .foot-links{justify-content:flex-start;margin-left:-8px}
}

@media (prefers-reduced-motion:reduce){
  body::after{animation:none}
  .reveal{opacity:1;transform:none;transition:none}
  .spot::before{animation:none}
  .caption{transition:none}
}