:root{
  --void:#000; --white:#fff; --ash:#9a9a9a; --silver:#bdbdbd; --dim:#5a5a5a;
  --iris:#8052ff; --iris-2:#a17dff; --iris-deep:#5a34d9; --saffron:#ffb829; --verdant:#15846e;
  --sans:'Inter',system-ui,-apple-system,sans-serif;
  --line:rgba(255,255,255,.12);
  --line-hi:rgba(255,255,255,.28);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--void);color:var(--white);font-family:var(--sans);-webkit-font-smoothing:antialiased;overflow-x:clip}
html{scroll-behavior:smooth}
body{font-weight:200;font-size:18px;line-height:1.5}
a{color:inherit;text-decoration:none}
::selection{background:var(--iris);color:#fff}
img{max-width:100%;display:block}

/* фон-констелляция */
#scene{position:fixed;inset:0;z-index:0;pointer-events:none}
#scene canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
main{position:relative;z-index:1}

/* scroll-progress bar */
#progress{position:fixed;top:0;left:0;height:2px;width:0;background:linear-gradient(90deg,var(--iris),var(--saffron));z-index:100;transition:width .1s linear;box-shadow:0 0 12px var(--iris)}

/* header */
header{position:fixed;top:0;left:0;right:0;z-index:20;padding:22px 32px;display:flex;align-items:center;gap:24px;transition:background .4s,backdrop-filter .4s}
header.solid{background:rgba(0,0,0,.55);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.brand{font-weight:400;font-size:17px;letter-spacing:-.02em;display:flex;align-items:center;gap:10px}
.brand-dot{width:10px;height:10px;border-radius:50%;background:var(--iris);box-shadow:0 0 16px var(--iris)}
.brand span{color:var(--ash);font-weight:200}
nav{margin-left:auto;display:flex;gap:32px;font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--ash)}
nav a{position:relative;padding:6px 0;transition:color .2s}
nav a:hover,nav a.active{color:var(--white)}
nav a:after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--iris);transition:right .3s}
nav a:hover:after,nav a.active:after{right:0}
.cta{padding:11px 22px;border-radius:999px;background:var(--iris);color:#fff;font-weight:600;font-size:12px;letter-spacing:.1em;text-transform:uppercase;transition:background .2s,transform .2s,box-shadow .3s;box-shadow:0 6px 24px -8px rgba(128,82,255,.6)}
.cta:hover{background:var(--iris-2);transform:translateY(-1px);box-shadow:0 12px 32px -6px rgba(128,82,255,.8)}
@media(max-width:720px){
  header{padding:14px 20px;gap:12px}
  nav{display:none}
  .cta{padding:10px 18px;font-size:11px}
}

/* mobile burger */
.burger{display:none;background:transparent;border:0;color:var(--white);cursor:pointer;padding:8px;margin-left:auto;order:3}
.burger span{display:block;width:22px;height:1.5px;background:var(--white);margin:5px 0;transition:.3s}
.mobile-menu{position:fixed;inset:0;background:var(--void);z-index:19;padding:100px 32px 32px;display:none;flex-direction:column;gap:0}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:20px 0;border-bottom:1px solid var(--line);font-size:22px;font-weight:400;letter-spacing:-.02em;color:var(--white)}
@media(max-width:720px){
  .burger{display:block;margin-left:0}
  header{justify-content:space-between}
  .brand{flex:1}
  header .cta{display:none}
}

/* секции */
section{padding:32vh 32px 18vh;position:relative}
.wrap{max-width:1280px;margin:0 auto}
.wrap-narrow{max-width:960px;margin:0 auto}
@media(max-width:720px){section{padding:24vh 20px 12vh}}

h1,h2,h3,h4{font-family:var(--sans);font-weight:400;letter-spacing:-.04em;line-height:1.02;color:var(--white)}
h1{font-size:clamp(48px,10vw,132px)}
h2{font-size:clamp(40px,7vw,96px)}
h3{font-size:clamp(26px,3.2vw,44px);letter-spacing:-.025em;line-height:1.1}
h4{font-size:clamp(20px,2vw,28px);letter-spacing:-.02em;line-height:1.2}
.amber{color:var(--saffron)}
.iris{color:var(--iris-2)}

.eyebrow{font-family:var(--sans);font-size:12px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--ash);margin-bottom:32px;display:inline-flex;align-items:center;gap:12px}
.eyebrow:before{content:"";width:8px;height:8px;background:var(--iris);border-radius:50%;box-shadow:0 0 14px var(--iris);animation:eyebrowPulse 2.6s ease-in-out infinite}
@keyframes eyebrowPulse{0%,100%{box-shadow:0 0 14px var(--iris)}50%{box-shadow:0 0 22px var(--iris),0 0 40px rgba(128,82,255,.4)}}

.lead{font-weight:200;font-size:clamp(19px,1.8vw,24px);line-height:1.55;color:var(--silver);max-width:720px;margin-top:32px}
.lead b{color:var(--saffron);font-weight:400}

/* кнопки */
.pillrow{margin-top:52px;display:flex;gap:14px;flex-wrap:wrap}
.pill{padding:16px 30px;border-radius:999px;background:var(--iris);color:#fff;font-weight:600;font-size:13px;letter-spacing:.08em;text-transform:uppercase;transition:.25s;box-shadow:0 6px 28px -8px rgba(128,82,255,.6);cursor:pointer;border:0;font-family:var(--sans);display:inline-flex;align-items:center;gap:8px;position:relative;overflow:hidden}
.pill:hover{background:var(--iris-2);transform:translateY(-2px);box-shadow:0 14px 40px -8px rgba(128,82,255,.8)}
.pill.ghost{background:transparent;color:var(--white);border:1px solid var(--line-hi);box-shadow:none}
.pill.ghost:hover{background:rgba(255,255,255,.04);border-color:var(--white)}
.pill.tiny{padding:11px 22px;font-size:11px}

/* magnetic effect — легкий сдвиг под курсор */
.magnetic{transition:transform .3s cubic-bezier(.22,1,.36,1)}

/* HERO */
.hero{min-height:100svh;padding:0 32px;display:flex;align-items:center;justify-content:center;text-align:center}
.hero .wrap{display:flex;flex-direction:column;align-items:center}
.hero h1{max-width:15ch;line-height:.95}
.hero .lead{text-align:center;margin-top:36px;max-width:640px}
.scroll-hint{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);font-size:10px;font-weight:600;letter-spacing:.28em;text-transform:uppercase;color:var(--ash);display:flex;align-items:center;gap:12px}
.scroll-hint:after{content:"";width:36px;height:1px;background:linear-gradient(90deg,transparent,var(--ash),transparent);animation:pulseX 2s ease-in-out infinite}
@keyframes pulseX{0%,100%{opacity:.3;transform:scaleX(.4)}50%{opacity:1;transform:scaleX(1)}}

/* split (title left, lead right) */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:80px;align-items:end}
.split .lead{margin-top:0}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:32px}.split .lead{max-width:100%}}

/* SERVICE LIST (главная) */
.svc-list{margin-top:72px;border-top:1px solid var(--line)}
.svc-row{display:grid;grid-template-columns:80px 1fr auto;gap:32px;align-items:center;padding:32px 0;border-bottom:1px solid var(--line);color:var(--white);transition:.35s cubic-bezier(.22,1,.36,1);cursor:pointer;position:relative;overflow:hidden}
.svc-row:before{content:"";position:absolute;left:-100%;right:100%;top:0;bottom:0;background:linear-gradient(90deg,rgba(128,82,255,.12),transparent 55%);transition:right .5s cubic-bezier(.22,1,.36,1),left .5s cubic-bezier(.22,1,.36,1);pointer-events:none}
.svc-row:hover{padding-left:24px}
.svc-row:hover:before{left:0;right:0}
.svc-row:hover .svc-title{color:var(--saffron)}
.svc-row:hover .svc-arrow{color:var(--iris);transform:translateX(10px)}
.svc-row:hover .svc-hint{opacity:1;transform:none}
.svc-num{font-size:13px;font-weight:600;letter-spacing:.16em;color:var(--ash);position:relative;z-index:1}
.svc-body{position:relative;z-index:1;display:flex;flex-direction:column;gap:8px}
.svc-title{font-weight:400;font-size:clamp(28px,4.4vw,60px);letter-spacing:-.028em;line-height:1;transition:color .35s}
.svc-hint{font-size:13px;font-weight:400;color:var(--ash);opacity:0;transform:translateY(6px);transition:.35s .05s;max-width:56ch}
.svc-arrow{color:var(--ash);font-size:24px;transition:.35s;position:relative;z-index:1;font-weight:200}
@media(max-width:720px){
  .svc-row{grid-template-columns:44px 1fr auto;gap:12px;padding:22px 0}
  .svc-num{font-size:11px}
  .svc-hint{opacity:1;transform:none;font-size:12px}
}

/* PROCESS — 4 шага */
.process{margin-top:72px;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
@media(max-width:900px){.process{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.process{grid-template-columns:1fr}}
.step{background:var(--void);padding:40px 24px 44px;display:flex;flex-direction:column;gap:16px;transition:background .3s}
.step:hover{background:rgba(128,82,255,.06)}
.step-num{font-size:12px;font-weight:600;letter-spacing:.2em;color:var(--iris);display:flex;align-items:center;gap:10px}
.step-num:before{content:"";width:26px;height:1px;background:var(--iris)}
.step h3{font-size:clamp(22px,2.4vw,30px);letter-spacing:-.02em}
.step p{color:var(--silver);font-size:15px;line-height:1.55;font-weight:200}

/* STATS */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:48px;margin-top:72px}
@media(max-width:900px){.stats-row{grid-template-columns:repeat(2,1fr);gap:40px}}
.stat b{display:block;font-weight:200;font-size:clamp(56px,7vw,108px);line-height:.9;letter-spacing:-.045em;color:var(--white)}
.stat b i{color:var(--saffron);font-style:normal;font-weight:200}
.stat span{display:block;margin-top:12px;font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--ash)}

/* INCLUDES (что входит в услугу — список чекбоксов) */
.includes{margin-top:64px;display:grid;grid-template-columns:1fr 1fr;gap:16px 48px}
@media(max-width:720px){.includes{grid-template-columns:1fr;gap:12px}}
.inc-item{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line);align-items:flex-start;transition:.3s}
.inc-item:hover{padding-left:12px}
.inc-item:hover .inc-check{color:var(--saffron);border-color:var(--saffron)}
.inc-check{flex:none;width:26px;height:26px;border-radius:999px;border:1px solid var(--iris);color:var(--iris);display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;transition:.3s}
.inc-txt b{display:block;font-weight:400;color:var(--white);font-size:18px;letter-spacing:-.015em;margin-bottom:4px}
.inc-txt span{display:block;color:var(--silver);font-size:14px;font-weight:200;line-height:1.5}

/* FAQ */
.faq{margin-top:64px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{display:flex;justify-content:space-between;align-items:center;gap:32px;padding:28px 0;cursor:pointer;font-size:clamp(20px,2vw,26px);font-weight:400;letter-spacing:-.02em;color:var(--white);transition:.3s;list-style:none}
.faq-q::-webkit-details-marker{display:none}
.faq-q:hover{color:var(--saffron)}
.faq-q:after{content:"+";font-size:28px;color:var(--iris);font-weight:200;transition:transform .3s}
.faq-item[open] .faq-q:after{transform:rotate(45deg)}
.faq-a{padding:0 0 28px;color:var(--silver);font-size:16px;font-weight:200;line-height:1.6;max-width:64ch}

/* CONTACT */
.contact-grid{margin-top:72px;display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr;gap:48px}}
.contact-side p{color:var(--silver);font-size:17px;font-weight:200;line-height:1.6;margin-bottom:24px;max-width:38ch}
.contact-side a{color:var(--white);border-bottom:1px solid var(--line-hi);padding-bottom:2px;transition:.2s}
.contact-side a:hover{color:var(--saffron);border-color:var(--saffron)}
.contact-line{display:block;margin-bottom:14px;font-size:14px;color:var(--ash);letter-spacing:.06em}
.contact-line b{display:block;color:var(--white);font-weight:400;font-size:20px;margin-top:2px;letter-spacing:-.01em}

.form-grid{display:flex;flex-direction:column;gap:0}
.field{border-bottom:1px solid var(--line);padding:20px 0;transition:border-color .3s}
.field:focus-within{border-bottom-color:var(--iris)}
.field label{display:block;font-size:11px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--ash);margin-bottom:8px;transition:color .3s}
.field:focus-within label{color:var(--iris-2)}
.field input,.field textarea,.field select{width:100%;background:transparent;border:0;color:var(--white);font-family:var(--sans);font-weight:400;font-size:20px;letter-spacing:-.015em;outline:none;resize:none;-webkit-appearance:none;appearance:none}
.field input::placeholder,.field textarea::placeholder{color:#5a5a5a;font-weight:200}
.field textarea{min-height:80px}
.field select option{background:#0a0a0a;color:var(--white)}
.form-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:36px}
.form-hint{font-size:12px;color:var(--ash);letter-spacing:.02em;max-width:36ch;font-weight:200}
.form-hint a{color:var(--silver);border-bottom:1px solid var(--line-hi)}

/* BREADCRUMBS */
.crumbs{display:flex;gap:12px;align-items:center;font-size:12px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--ash);margin-bottom:36px}
.crumbs a{color:var(--ash);transition:.2s}
.crumbs a:hover{color:var(--iris-2)}
.crumbs .sep{opacity:.5}
.crumbs b{color:var(--white);font-weight:500}

/* CASE cards / примеры кейсов на странице услуги */
.cases{margin-top:72px;display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
@media(max-width:720px){.cases{grid-template-columns:1fr}}
.case{background:var(--void);padding:48px 32px;display:flex;flex-direction:column;gap:14px;transition:background .3s;cursor:pointer}
.case:hover{background:rgba(128,82,255,.05)}
.case:hover .case-title{color:var(--saffron)}
.case-tag{font-size:11px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--iris-2)}
.case-title{font-size:clamp(24px,2.6vw,34px);font-weight:400;letter-spacing:-.02em;line-height:1.15;transition:color .3s}
.case-result{margin-top:8px;color:var(--silver);font-size:15px;font-weight:200}
.case-result b{color:var(--saffron);font-weight:400}

/* FINAL */
.final{text-align:center;min-height:70svh;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:20vh 32px}
.final h2{max-width:16ch}
.final .lead{text-align:center;margin:32px auto 40px}

footer{padding:60px 32px 40px;color:var(--ash);font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;position:relative;z-index:1;border-top:1px solid var(--line);margin-top:60px}
footer .frow{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px}
@media(max-width:720px){footer .frow{grid-template-columns:1fr 1fr;gap:32px}}
footer h5{font-size:11px;color:var(--white);margin-bottom:16px;letter-spacing:.16em}
footer ul{list-style:none;display:flex;flex-direction:column;gap:10px}
footer a{color:var(--ash);text-transform:none;font-weight:400;letter-spacing:.02em;font-size:13px}
footer a:hover{color:var(--white)}
footer .fbot{max-width:1280px;margin:48px auto 0;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;text-transform:none;letter-spacing:.02em;font-size:12px;font-weight:400}

/* reveal */
.reveal{opacity:0;transform:translateY(40px);transition:opacity 1s cubic-bezier(.22,1,.36,1),transform 1s cubic-bezier(.22,1,.36,1)}
.reveal.on{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.08s}
.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}
.reveal[data-d="4"]{transition-delay:.32s}

/* page-transition curtain */
#curtain{position:fixed;inset:0;background:var(--void);z-index:200;pointer-events:none;transform:translateY(100%);transition:transform .6s cubic-bezier(.85,0,.15,1)}
#curtain.up{transform:translateY(0)}
#curtain.gone{transform:translateY(-100%);transition:transform .6s cubic-bezier(.85,0,.15,1) .05s}

@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
  #curtain{display:none}
}