:root{
  --bg:#F2ECE2;--ink:#1C1714;--muted:#6B6158;--clay:#8C8176;--card:#E8E0D3;
  --accent:#1E3FD8;--accent-dk:#1631B0;--accent-hi:#8FA1FF;--heat:#FF7A1A;
  --dark:#1C1714;--deep:#120E0C;--line:rgba(28,23,20,.2);--line-lt:rgba(242,236,226,.18);
  --font-display:"Inter Tight",system-ui,sans-serif;--font-mono:"JetBrains Mono",ui-monospace,monospace;
  --ease:cubic-bezier(.16,1,.3,1);--gutter:clamp(1.25rem,4vw,3rem);--container:1180px;--r:14px;
  --fs-h2:clamp(2rem,1.2rem + 3vw,4rem);--fs-text:clamp(1.0625rem,1rem + .2vw,1.125rem)
}
@view-transition{navigation:auto}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html:not(.lenis){scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font:400 var(--fs-text)/1.55 var(--font-display);overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
h1,h2,h3{margin:0;font-weight:800;line-height:1;letter-spacing:-.03em;text-wrap:balance}
h2{font-size:var(--fs-h2)}
p{margin:0;text-wrap:pretty}
a{color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.wrap{max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}
section[id]{scroll-margin-top:72px}
.label{font:500 .8125rem/1.3 var(--font-mono);letter-spacing:.04em;text-transform:uppercase}

/* кнопки */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:.85em 1.6em;border:2px solid var(--accent);border-radius:999px;background:var(--accent);color:var(--bg);font:600 1rem/1.1 var(--font-display);text-decoration:none;white-space:nowrap;cursor:pointer;transition:transform .2s var(--ease),background-color .2s,border-color .2s,color .2s}
.btn:hover{background:var(--accent-dk);border-color:var(--accent-dk);transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:currentColor;color:inherit}
.btn-ghost:hover{background:var(--bg);border-color:var(--bg);color:var(--ink)}
.btn-sm{min-height:44px;padding:.6em 1.2em;font-size:.9375rem}
.btn-wide{width:100%}
.btn:disabled{opacity:.7;cursor:progress;transform:none}

/* шапка */
.site-head{position:fixed;inset:0 0 auto;z-index:50;color:var(--bg);transition:background-color .25s,color .25s,box-shadow .25s}
.site-head.solid{background:var(--bg);color:var(--ink);box-shadow:0 1px 0 var(--line)}
.head-in{display:flex;align-items:center;gap:1.5rem;max-width:1320px;margin:0 auto;padding:.75rem var(--gutter)}
.logo{font-weight:800;font-size:1.375rem;letter-spacing:-.04em;text-decoration:none;margin-right:auto}
.nav ul{display:flex;gap:1.5rem;list-style:none;margin:0;padding:0}
.nav a{text-decoration:none;font-weight:500;font-size:.9375rem;padding:.5rem 0;background:linear-gradient(currentColor,currentColor) 0 100%/0 2px no-repeat;transition:background-size .2s var(--ease)}
.nav a:hover,.nav a:focus-visible{background-size:100% 2px}
.burger{display:none;width:44px;height:44px;border:0;background:none;color:inherit;cursor:pointer;padding:10px;flex-direction:column;justify-content:center;gap:7px}
.burger span{display:block;height:2px;background:currentColor;transition:transform .2s var(--ease)}
.burger[aria-expanded="true"] span:first-child{transform:translateY(4.5px) rotate(45deg)}
.burger[aria-expanded="true"] span:last-child{transform:translateY(-4.5px) rotate(-45deg)}

/* видео по прокрутке */
.film{position:relative;background:var(--deep);color:var(--bg)}
.film-stage{position:relative;height:100svh;overflow:hidden}
.film [data-nb-frames-poster]{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.film-scrim{position:absolute;left:0;bottom:0;z-index:1;width:min(85%,980px);height:75%;pointer-events:none;background:radial-gradient(ellipse at 0 100%,rgba(18,14,12,.92) 0,rgba(18,14,12,.62) 42%,rgba(18,14,12,0) 72%)}
.beat{position:absolute;left:var(--gutter);right:var(--gutter);bottom:clamp(2rem,8svh,5.5rem);z-index:2;max-width:52rem;transform:translateY(calc((1 - var(--nb-at,1)) * 24px))}
.film-word{font-size:clamp(5.5rem,3rem + 17vw,17rem);line-height:.82;letter-spacing:-.06em;margin-left:-.04em}
.beat-line{margin-top:1rem;font-size:clamp(1.125rem,1rem + .6vw,1.5rem);max-width:34ch}
.beat-big{font-weight:800;font-size:clamp(2.1rem,1rem + 4.2vw,4.75rem);line-height:1;letter-spacing:-.035em;max-width:16ch;text-wrap:balance}
.beat-price{font:600 clamp(1.5rem,1rem + 2vw,2.75rem)/1.1 var(--font-mono);color:var(--accent-hi);font-variant-numeric:tabular-nums}
.beat-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.5rem}

/* форматы */
.formats{padding:clamp(96px,11vw,160px) 0}
.lock{display:grid;grid-template-columns:auto 1px minmax(0,1fr) auto;gap:clamp(1rem,3vw,2.5rem);align-items:center;margin-bottom:clamp(2.5rem,5vw,4rem)}
.lock-word{font-size:clamp(3rem,1rem + 7vw,8rem);letter-spacing:-.05em}
.lock-rule{align-self:stretch;background:var(--clay)}
.lock p{color:var(--muted);max-width:40ch}
.lock-link{font-weight:600;color:var(--accent);text-underline-offset:4px;min-height:44px;display:inline-flex;align-items:center}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(1rem,2vw,1.5rem)}
.card{display:flex;flex-direction:column;gap:.75rem;padding:clamp(1.5rem,2.5vw,2.25rem);background:var(--card);border-radius:var(--r);border-top:3px solid var(--ink);transition:transform .2s var(--ease),background-color .2s}
.card:hover,.card:focus-within{transform:translateY(-2px);background:#E2D9CA}
.ico{width:48px;height:48px;fill:none;stroke:var(--ink);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:clamp(1.5rem,1.2rem + .8vw,1.875rem)}
.card-meta{font:500 .875rem/1.3 var(--font-mono);color:var(--muted)}
.card p:not(.price):not(.card-meta){color:var(--muted)}
.price{margin-top:auto;padding-top:.75rem;font:600 clamp(1.75rem,1.4rem + 1vw,2.25rem)/1 var(--font-mono);color:var(--accent);font-variant-numeric:tabular-nums}
.price small{font-size:.875rem;font-weight:500}
.card .btn{align-self:flex-start}

/* как устроено */
.how{background:var(--dark);color:var(--bg)}
.how-stage{min-height:100svh;display:flex;align-items:center;padding:5.5rem 0 2.5rem}
.how-wrap{width:100%}
.how h2{max-width:18ch}
.how-bar{height:2px;margin:1.5rem 0 clamp(1.5rem,4vh,3rem);background:var(--line-lt)}
.how-bar span{display:block;height:100%;background:var(--accent-hi);transform-origin:left;transform:scaleX(var(--nb-p,1))}
.steps{display:grid;gap:3.5rem;list-style:none;margin:0;padding:0}
.step{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:var(--gutter);align-items:center}
.how:has(.is-active) .step{grid-area:1/1;opacity:0;visibility:hidden;transform:translateY(18px);transition:opacity .45s var(--ease),transform .45s var(--ease),visibility 0s .45s}
.how:has(.is-active) .step.is-active{opacity:1;visibility:visible;transform:none;transition:opacity .45s var(--ease),transform .45s var(--ease),visibility 0s}
.step-num{font-weight:800;font-size:clamp(6rem,3rem + 14vw,16rem);line-height:.8;letter-spacing:-.06em;color:var(--accent-hi);font-variant-numeric:tabular-nums}
.step-num.heat{color:var(--heat);font-size:clamp(3.25rem,1.5rem + 7vw,9rem);letter-spacing:-.04em}
.step-body{display:grid;gap:1rem;align-content:center}
.step-body h3{font-size:clamp(1.75rem,1.2rem + 2vw,3rem)}
.step-body p{color:#D6CDC1;max-width:42ch}
.step-body .label{color:var(--heat)}
.step-kiln img{width:min(100%,300px);aspect-ratio:4/5;height:auto;max-height:44svh;object-fit:cover;border-radius:var(--r)}

/* цифры */
.facts{padding:clamp(48px,6vw,80px) 0}
.facts-list{display:grid;grid-template-columns:repeat(4,1fr);list-style:none;margin:0 auto}
.facts-list li{display:grid;gap:.75rem;padding:1rem clamp(1rem,2vw,2rem);border-left:1px solid var(--clay)}
.facts-list li:first-child{border-left:0;padding-left:0}
.fact-num{font-weight:800;font-size:clamp(3rem,1.5rem + 4.5vw,6.5rem);line-height:.9;letter-spacing:-.05em;font-variant-numeric:tabular-nums;white-space:nowrap}
.unit{font-size:.45em;letter-spacing:-.02em;margin-left:.1em;vertical-align:.9em}
.facts .label{color:var(--muted)}

/* бегущая строка */
.marquee{background:var(--deep);color:var(--bg);padding:clamp(1rem,2vw,2rem) 0;overflow:hidden}
.marquee ul{display:flex;gap:.3em;list-style:none;margin:0;padding:0;font-weight:800;font-size:clamp(4rem,12vw,12rem);line-height:1;letter-spacing:-.05em;white-space:nowrap}
.marquee li:nth-child(even){color:var(--accent-hi)}

/* сертификат */
.cert{display:grid;grid-template-columns:7fr 5fr;align-items:center;gap:clamp(2rem,5vw,5rem);padding:clamp(96px,12vw,180px) 0}
.cert-photo{margin:0}
.cert-photo img{width:100%;aspect-ratio:3/2;height:auto;object-fit:cover}
.cert-text{display:grid;gap:1.5rem;padding-right:var(--gutter);max-width:34rem}
.cert-text h2{font-size:clamp(2rem,1.2rem + 2.4vw,3.5rem)}
.cert-text p{color:var(--muted)}
.cert-text .btn{justify-self:start}

/* вопросы */
.faq{padding:clamp(80px,9vw,140px) 0;border-top:1px solid var(--line)}
.faq h2{max-width:16ch;margin-bottom:clamp(2rem,4vw,3.5rem)}
.faq-list{margin:0}
.qa{display:grid;grid-template-columns:5fr 7fr;gap:var(--gutter);padding:1.5rem 0;border-top:1px solid var(--line)}
.qa dt{font-weight:700;font-size:clamp(1.25rem,1rem + 1vw,1.75rem);letter-spacing:-.02em;line-height:1.15}
.qa dd{margin:0;color:var(--muted);max-width:56ch}

/* форма */
.signup{background:var(--dark);color:var(--bg);padding:clamp(96px,11vw,160px) 0;color-scheme:dark}
.signup-grid{display:grid;grid-template-columns:6fr 5fr;gap:clamp(2rem,6vw,6rem);align-items:start}
.signup h2{font-size:clamp(2rem,1.2rem + 2.6vw,3.75rem)}
.signup-text p{margin-top:1.5rem;color:#D6CDC1;max-width:40ch}
.form{display:grid;gap:1.1rem}
.field{display:grid;gap:.45rem}
.field .label{color:#D6CDC1}
.field input,.field select{width:100%;min-height:52px;padding:.75rem 1rem;border:1px solid rgba(242,236,226,.3);border-radius:10px;background:#2A231F;color:var(--bg);font:inherit;transition:border-color .2s}
.field input::placeholder{color:#A69B8F}
.field input:focus-visible,.field select:focus-visible{outline:3px solid var(--accent-hi);outline-offset:2px;border-color:var(--accent-hi)}
.consent{display:flex;gap:.75rem;align-items:flex-start;font-size:.9375rem;color:#D6CDC1;cursor:pointer}
.consent input{width:22px;height:22px;margin:.15rem 0 0;flex:none;accent-color:var(--accent-hi)}
.consent a{color:var(--accent-hi)}
.signup :focus-visible{outline-color:var(--accent-hi)}
.form-err{color:#FFB38A;font-size:.9375rem;min-height:1.2em}
.form-err:empty{min-height:0}
.form-hint{font:500 .8125rem/1.4 var(--font-mono);color:#A69B8F}
.form-ok{padding:1.25rem 1.5rem;border-radius:var(--r);background:var(--accent);color:var(--bg);font-size:1.125rem}

/* подвал */
.foot{background:var(--deep);color:#D6CDC1;padding:clamp(56px,6vw,88px) 0 2rem;font-size:.9375rem}
.foot-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--gutter)}
.foot-grid p+p{margin-top:.75rem}
.foot a{color:var(--bg);text-underline-offset:3px;display:inline-block;padding:.35rem 0}
.foot-logo{font-weight:800;font-size:2.5rem;letter-spacing:-.05em;color:var(--bg);margin-bottom:1rem}
.privacy h2{font-size:1.25rem;letter-spacing:-.01em;color:var(--bg);margin-bottom:.75rem}
.privacy p{max-width:48ch}
.foot-legal{margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--line-lt);display:grid;gap:.5rem;color:#A69B8F;font-size:.875rem}

@media (max-width:1024px){
  .lock{grid-template-columns:auto 1px minmax(0,1fr)}
  .lock-link{grid-column:1/-1}
}
@media (max-width:900px){
  .nav{position:fixed;inset:0;z-index:-1;display:flex;align-items:center;padding:5rem var(--gutter);background:var(--dark);color:var(--bg);opacity:0;visibility:hidden;transition:opacity .25s,visibility 0s .25s}
  .nav.open{opacity:1;visibility:visible;transition:opacity .25s}
  .nav ul{flex-direction:column;gap:.5rem}
  .nav a{font-size:1.75rem;font-weight:700;display:inline-block;padding:.4rem 0}
  .burger{display:flex}
  .site-head:has(.nav.open){color:var(--bg);background:transparent;box-shadow:none}
  .step{grid-template-columns:1fr;gap:1rem}
  .step-kiln img{max-height:26svh;width:auto}
  .cert{grid-template-columns:1fr;padding-top:0}
  .cert-text{padding:0 var(--gutter)}
  .signup-grid,.foot-grid{grid-template-columns:1fr}
  .qa{grid-template-columns:1fr;gap:.5rem}
}
@media (max-width:640px){
  .head-cta{display:none}
  .lock{grid-template-columns:1fr;gap:1rem}
  .lock-rule{display:none}
  .cards{grid-template-columns:1fr}
  .facts-list{grid-template-columns:1fr 1fr;row-gap:1.5rem}
  .facts-list li:nth-child(3){border-left:0;padding-left:0}
  .beat{bottom:clamp(1.5rem,5svh,3rem)}
  .film-scrim{width:100%;height:60%;background:linear-gradient(to top,rgba(18,14,12,.92) 0,rgba(18,14,12,.6) 50%,rgba(18,14,12,0) 100%)}
  .beat-actions{flex-direction:column;align-items:stretch}
  .how-stage{padding-top:4.75rem}
  .step-num{font-size:clamp(5rem,26vw,7rem)}
}
@media (max-width:380px){.btn{white-space:normal;text-align:center}}