/* =========================================================
   Система роста выручки — лендинг
   Дизайн-система: тёмный «инженерный» тёмно-синий + неон
   ========================================================= */

/* ---------- шрифт (self-hosted, без внешних запросов) ---------- */
@font-face{
  font-family:"Inter"; font-style:normal; font-weight:400 900; font-display:swap;
  src:url("../fonts/inter-cyrillic.woff2?v=c84104ba") format("woff2");
  unicode-range:U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face{
  font-family:"Inter"; font-style:normal; font-weight:400 900; font-display:swap;
  src:url("../fonts/inter-latin.woff2?v=c84104ba") format("woff2");
  unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
                U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
                U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---------- tokens ---------- */
:root{
  /* поверхности */
  --bg:        #060B16;
  --bg-2:      #08101f;
  --surface:   #0C1526;
  --surface-2: #101C31;
  --line:      #1C2B45;
  --line-soft: #16233a;

  /* текст */
  --ink:       #EAF1FB;
  --ink-2:     #A7B6CC;
  --ink-3:     #8496AE;

  /* акценты */
  --cyan:      #35E0F5;
  --cyan-deep: #0EA5C6;
  --orange:    #FF7A2F;
  --orange-2:  #FF4D2E;
  --green:     #19C37D;
  --blue:      #3B82F6;

  /* эффекты */
  --glow-cyan: 0 0 0 1px rgba(53,224,245,.25), 0 12px 40px -12px rgba(53,224,245,.45);
  --shadow-lg: 0 30px 80px -30px rgba(0,0,0,.85);
  --shadow-md: 0 18px 45px -22px rgba(0,0,0,.75);

  /* геометрия */
  --r-sm: 10px;
  --r:    16px;
  --r-lg: 24px;
  --r-xl: 32px;

  --wrap: 1200px;
  --pad:  clamp(18px, 5vw, 40px);
  --sec-y: clamp(72px, 11vw, 148px);

  --ease: cubic-bezier(.22,.68,.32,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } }

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font:400 17px/1.65 "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-feature-settings:"kern","liga","calt","tnum" 0;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{ max-width:100%; height:auto; display:block; }
a{ color:inherit; text-decoration:none; }
button,input,select,textarea{ font:inherit; color:inherit; }
h1,h2,h3,h4,p,dl,dd,figure,ul,ol{ margin:0; }
ul,ol{ list-style:none; padding:0; }

::selection{ background:rgba(53,224,245,.3); color:#fff; }

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:6px;
}

.skip-link{
  position:fixed; left:12px; top:-100px; z-index:200;
  background:var(--cyan); color:#02121a; padding:10px 18px;
  border-radius:8px; font-weight:700; transition:top .2s;
}
.skip-link:focus{ top:12px; }

/* ---------- layout ---------- */
.wrap{ width:100%; max-width:var(--wrap); margin-inline:auto; padding-inline:var(--pad); }
.wrap--narrow{ max-width:860px; }
.sec{ padding-block:var(--sec-y); position:relative; }
section[id], #top{ scroll-margin-top:86px; }

.sec__head{ max-width:760px; margin:0 auto clamp(36px,5vw,64px); text-align:center; }

.grid-2{
  display:grid; gap:clamp(32px,5vw,72px);
  grid-template-columns:1fr; align-items:center;
}
@media (min-width:900px){
  .grid-2{ grid-template-columns:1fr 1fr; }
  .grid-2--art{ grid-template-columns:1.05fr .95fr; }
}

/* ---------- typography ---------- */
.h2{
  font-size:clamp(30px,4.6vw,58px);
  line-height:1.06;
  letter-spacing:-.03em;
  font-weight:800;
  text-wrap:balance;
}
.lead{
  color:var(--ink-2);
  font-size:clamp(16px,1.6vw,19px);
  line-height:1.65;
  margin-top:20px;
  max-width:60ch;
  text-wrap:pretty;
}
.lead--center{ margin-inline:auto; }
.muted{ color:var(--ink-3); }
.hl{ color:var(--cyan); }

.grad{
  background:linear-gradient(100deg,#fff 8%,var(--cyan) 52%,#7DD3FC 92%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.num-flame{
  background:linear-gradient(180deg,#FFC46B,var(--orange) 55%,var(--orange-2));
  -webkit-background-clip:text; background-clip:text; color:transparent;
  font-variant-numeric:tabular-nums;
}

.eyebrow{
  display:inline-flex; align-items:center; gap:9px;
  font-size:12.5px; font-weight:600; letter-spacing:.16em; text-transform:uppercase;
  color:var(--cyan);
  padding:7px 15px 7px 12px;
  border:1px solid rgba(53,224,245,.24);
  border-radius:99px;
  background:rgba(53,224,245,.06);
  margin-bottom:22px;
}
.eyebrow--warn{ color:#FFA76B; border-color:rgba(255,122,47,.28); background:rgba(255,122,47,.07); }
.dot{
  width:6px; height:6px; border-radius:50%; background:currentColor; flex:none;
  box-shadow:0 0 0 3px color-mix(in srgb, currentColor 22%, transparent);
  animation:pulse 2.6s var(--ease) infinite;
}
@keyframes pulse{ 0%,100%{ opacity:1; transform:scale(1);} 50%{ opacity:.45; transform:scale(.8);} }

/* ---------- buttons ---------- */
.btn{
  --btn-bg:linear-gradient(100deg,var(--cyan),#5BE7FF 45%,#8AD8FF);
  position:relative;
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:14px 26px;
  border:0; border-radius:99px;
  background:var(--btn-bg);
  color:#03121B;
  font-weight:700; font-size:15.5px; letter-spacing:-.01em;
  cursor:pointer;
  isolation:isolate; overflow:hidden;
  box-shadow:0 10px 30px -10px rgba(53,224,245,.65), inset 0 1px 0 rgba(255,255,255,.55);
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), filter .25s var(--ease);
  text-align:center;
}
.btn svg{ width:19px; height:19px; flex:none; transition:transform .28s var(--ease); }
.btn::after{
  content:""; position:absolute; inset:0; z-index:-1;
  background:linear-gradient(100deg,transparent 20%,rgba(255,255,255,.65),transparent 80%);
  transform:translateX(-120%);
}
.btn:hover{ transform:translateY(-2px); box-shadow:0 18px 44px -14px rgba(53,224,245,.8), inset 0 1px 0 rgba(255,255,255,.6); }
.btn:hover::after{ transform:translateX(120%); transition:transform .75s var(--ease); }
.btn:hover svg{ transform:translateX(4px); }
.btn:active{ transform:translateY(0); }
.btn--lg{ padding:17px 32px; font-size:16.5px; }
.btn--sm{ padding:10px 20px; font-size:14px; white-space:nowrap; }
.btn--block{ display:flex; width:100%; }
.btn--ghost{
  background:rgba(255,255,255,.04);
  color:var(--ink);
  box-shadow:inset 0 0 0 1px var(--line);
  backdrop-filter:blur(8px);
}
.btn--ghost:hover{
  background:rgba(53,224,245,.09);
  box-shadow:inset 0 0 0 1px rgba(53,224,245,.4), 0 14px 34px -18px rgba(53,224,245,.5);
}

/* ---------- scroll progress ---------- */
.scroll-progress{
  position:fixed; inset:0 0 auto 0; height:2px; z-index:120; pointer-events:none;
  background:transparent;
}
.scroll-progress i{
  display:block; height:100%; width:0;
  background:linear-gradient(90deg,var(--cyan),#8AD8FF,var(--orange));
  box-shadow:0 0 12px rgba(53,224,245,.8);
}

/* ---------- nav ---------- */
.nav{
  position:fixed; inset:0 0 auto 0; z-index:110;
  transition:background .35s var(--ease), box-shadow .35s var(--ease), backdrop-filter .35s;
}
.nav.is-stuck{
  background:rgba(6,11,22,.78);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:0 1px 0 var(--line-soft), 0 20px 40px -34px #000;
}
.nav__in{ display:flex; align-items:center; gap:clamp(14px,3vw,36px); height:72px; }

.brand{ display:inline-flex; align-items:center; gap:11px; flex:none; }
.brand__mark{ width:30px; height:30px; color:var(--cyan); filter:drop-shadow(0 0 10px rgba(53,224,245,.55)); }
.brand__txt{ font-weight:800; letter-spacing:-.02em; font-size:17px; line-height:1; }
.brand__txt b{ color:var(--cyan); font-weight:800; }
.brand__txt b::before{ content:" "; }

.nav__links{ display:none; gap:clamp(14px,2.2vw,30px); margin-inline:auto; }
.nav__links a{
  font-size:14.5px; color:var(--ink-2); font-weight:500; position:relative; padding:6px 0;
  white-space:nowrap;
  transition:color .2s;
}
.nav__links a::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:1.5px;
  background:var(--cyan); transform:scaleX(0); transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav__links a:hover{ color:var(--ink); }
.nav__links a:hover::after{ transform:scaleX(1); }

.nav__cta{ display:none; align-items:center; gap:18px; margin-left:auto; }
.tel{ font-weight:600; font-size:14.5px; white-space:nowrap; transition:color .2s; }
.tel:hover{ color:var(--cyan); }

.burger{
  margin-left:auto; width:44px; height:44px; display:grid; place-content:center; gap:5px;
  background:rgba(255,255,255,.04); border:1px solid var(--line); border-radius:12px; cursor:pointer;
}
.burger span{ display:block; width:18px; height:2px; background:var(--ink); border-radius:2px; transition:transform .3s var(--ease), opacity .2s; }
.burger[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.burger[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

.mobile-menu[hidden]{ display:none; }
.mobile-menu{
  display:grid; gap:4px; padding:8px var(--pad) 24px;
  max-height:calc(100dvh - 72px); overflow-y:auto;
  background:rgba(6,11,22,.96); backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line-soft);
}
.mobile-menu a:not(.btn){ padding:13px 4px; border-bottom:1px solid var(--line-soft); color:var(--ink-2); font-weight:500; }
.mobile-menu .btn{ margin-top:14px; }

@media (min-width:1180px){
  .nav__links, .nav__cta{ display:flex; }
  .burger, .mobile-menu{ display:none !important; }
}

/* ---------- hero ---------- */
.hero{
  position:relative; overflow:hidden;
  padding-top:clamp(112px,14vw,168px);
  padding-bottom:clamp(48px,7vw,88px);
  background:
    radial-gradient(120% 80% at 78% 8%, rgba(20,74,120,.42), transparent 60%),
    radial-gradient(90% 70% at 10% 92%, rgba(12,52,92,.35), transparent 62%),
    linear-gradient(180deg,#071021 0%,#060B16 62%,var(--bg) 100%);
}
.hero__canvas{ position:absolute; inset:0; width:100%; height:100%; z-index:0; }
.hero__glow{
  position:absolute; z-index:0; pointer-events:none;
  width:min(760px,90vw); aspect-ratio:1; right:-14%; top:-8%;
  background:radial-gradient(circle, rgba(53,224,245,.16), transparent 62%);
  filter:blur(30px);
}
.hero::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:180px; z-index:1;
  background:linear-gradient(180deg,transparent,var(--bg));
  pointer-events:none;
}
.hero__in{
  position:relative; z-index:2;
  display:grid; gap:clamp(28px,5vw,56px); align-items:center;
  grid-template-columns:1fr;
}
@media (min-width:960px){ .hero__in{ grid-template-columns:1.14fr .86fr; } }

.hero__h1{
  font-size:clamp(36px,5.4vw,70px);
  line-height:1.03; letter-spacing:-.04em; font-weight:900;
  text-wrap:balance;
}
.hero__lead{
  color:var(--ink-2); margin-top:20px; max-width:50ch;
  font-size:clamp(16px,1.6vw,18.5px); line-height:1.6; text-wrap:pretty;
}
.hero__actions{ display:flex; flex-wrap:wrap; gap:14px; margin-top:30px; }
.hero__micro{ margin-top:14px; font-size:13px; color:var(--ink-3); }
@media (max-width:640px){
  .hero__actions{ display:grid; grid-template-columns:1fr; gap:12px; }
  .hero__actions .btn{ width:100%; }
}

.hero__stats{
  display:grid; grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(10px,2vw,20px); margin-top:clamp(30px,3.6vw,42px);
  padding-top:24px; border-top:1px solid var(--line-soft);
}
.hero__stats dt{ font-size:12px; color:var(--ink-3); letter-spacing:.05em; text-transform:uppercase; font-weight:600; }
.hero__stats dd{
  margin:6px 0 0; font-size:clamp(24px,3.6vw,38px); font-weight:800; letter-spacing:-.035em;
  font-variant-numeric:tabular-nums; line-height:1.05;
}
.hero__stats dd i{ font-style:normal; font-size:.5em; color:var(--cyan); margin-left:3px; font-weight:700; letter-spacing:0; }

.hero__art{
  position:relative; justify-self:center;
  width:min(100%, 560px); aspect-ratio:1/1;
}
/* контейнер 3D-сцены; внутри — <canvas> от three.js */
.hero__3d{ position:absolute; inset:0; z-index:2; }
.hero__3d canvas{ animation:float 11s ease-in-out infinite; }

/* растровый фолбэк: виден, пока 3D не поднялось (или если WebGL нет) */
.hero__fallback{
  position:absolute; inset:0; margin:auto; width:100%; height:100%;
  object-fit:contain;
  mix-blend-mode:screen;
  filter:saturate(118%) contrast(106%);
  -webkit-mask-image:radial-gradient(ellipse 70% 70% at 50% 50%, #000 46%, rgba(0,0,0,.35) 74%, transparent 92%);
          mask-image:radial-gradient(ellipse 70% 70% at 50% 50%, #000 46%, rgba(0,0,0,.35) 74%, transparent 92%);
  animation:float 9s ease-in-out infinite;
  transition:opacity .6s var(--ease);
}
.hero__3d.is-3d .hero__fallback{ opacity:0; pointer-events:none; }

@keyframes float{ 0%,100%{ transform:translateY(0) } 50%{ transform:translateY(-14px) } }
.hero__art-ring{
  position:absolute; inset:8%; z-index:1; border-radius:50%;
  background:radial-gradient(circle, rgba(53,224,245,.22), transparent 62%);
  filter:blur(28px);
  animation:breathe 7s ease-in-out infinite;
}
@keyframes breathe{ 0%,100%{ opacity:.75; transform:scale(1) } 50%{ opacity:1; transform:scale(1.07) } }

.hero__trust{
  position:relative; z-index:2;
  display:flex; align-items:center; gap:clamp(14px,3vw,28px); flex-wrap:wrap;
  margin-top:clamp(40px,6vw,72px); padding-top:26px;
  border-top:1px solid var(--line-soft);
}
.hero__trust > span{ font-size:12px; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-3); font-weight:600; }
.hero__trust ul{ display:flex; align-items:center; gap:clamp(10px,2.2vw,20px); flex-wrap:wrap; }
.hero__trust li{
  display:flex; align-items:center; justify-content:center; width:118px; padding:6px 10px;
  background:#fff; border-radius:9px; transition:transform .3s var(--ease);
}
.hero__trust img{
  width:100%; height:auto;
  opacity:.72; filter:grayscale(1); transition:opacity .3s, filter .3s;
}
.hero__trust li:hover{ transform:translateY(-2px); }
.hero__trust li:hover img{ opacity:1; filter:none; }

/* ---------- problem ---------- */
.sec--problem{
  background:
    radial-gradient(80% 60% at 92% 30%, rgba(255,77,46,.10), transparent 62%),
    var(--bg);
}
.bullets{ display:grid; gap:12px; margin-top:30px; }
.bullets li{
  position:relative; padding-left:34px; color:var(--ink-2); line-height:1.55;
}
.bullets li b{ color:var(--ink); font-weight:600; }
.bullets li::before{
  content:""; position:absolute; left:0; top:.52em; width:18px; height:2px; border-radius:2px;
  background:linear-gradient(90deg,var(--orange),transparent);
}
.art{ position:relative; }
.art--bleed img{
  mix-blend-mode:screen;
  filter:saturate(114%) contrast(104%);
  -webkit-mask-image:radial-gradient(ellipse 76% 76% at 52% 50%, #000 52%, rgba(0,0,0,.4) 78%, transparent 95%);
          mask-image:radial-gradient(ellipse 76% 76% at 52% 50%, #000 52%, rgba(0,0,0,.4) 78%, transparent 95%);
}

/* ---------- calculator ---------- */
.sec--calc{ background:linear-gradient(180deg,var(--bg),var(--bg-2) 45%,var(--bg)); }
.calc{
  display:grid; gap:0; grid-template-columns:1fr;
  border:1px solid var(--line); border-radius:var(--r-xl);
  background:linear-gradient(160deg, rgba(255,255,255,.045), rgba(255,255,255,.012));
  box-shadow:var(--shadow-lg);
  overflow:hidden;
}
@media (min-width:900px){ .calc{ grid-template-columns:1.05fr .95fr; } }
.calc__controls{ padding:clamp(24px,4vw,44px); display:grid; gap:30px; align-content:start; }
.calc__out{
  padding:clamp(24px,4vw,44px);
  background:
    radial-gradient(90% 70% at 80% 0%, rgba(255,122,47,.10), transparent 60%),
    rgba(4,9,18,.6);
  border-top:1px solid var(--line);
  display:grid; gap:16px; align-content:start;
}
@media (min-width:900px){ .calc__out{ border-top:0; border-left:1px solid var(--line); } }

.field{ display:grid; gap:9px; }
.field__lab{ font-size:14px; font-weight:600; color:var(--ink-2); }
.field__lab b{ color:var(--cyan); font-variant-numeric:tabular-nums; }
.field__lab i{ color:var(--orange); font-style:normal; margin-left:2px; }
.field__hint{ font-size:12.5px; color:var(--ink-3); }
.field__in{
  width:100%; padding:14px 16px;
  background:rgba(0,0,0,.34); border:1px solid var(--line); border-radius:var(--r-sm);
  color:var(--ink); font-size:17px; font-weight:600; font-variant-numeric:tabular-nums;
  transition:border-color .2s, box-shadow .2s, background .2s;
}
.field__in::placeholder{ color:var(--ink-3); font-weight:400; }
.field__in:focus{ outline:none; border-color:var(--cyan); box-shadow:0 0 0 3px rgba(53,224,245,.16); background:rgba(0,0,0,.5); }
select.field__in{ appearance:none; cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236B7C96' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat; background-position:right 14px center; background-size:18px; padding-right:44px;
}
select.field__in option{ background:#0C1526; color:var(--ink); }
textarea.field__in{ resize:vertical; font-weight:400; font-size:16px; line-height:1.55; }

.slider{
  -webkit-appearance:none; appearance:none; width:100%; height:6px; border-radius:99px; cursor:pointer;
  background:linear-gradient(90deg,var(--orange) var(--p,45%), rgba(255,255,255,.10) var(--p,45%));
  margin:6px 0 0;
}
.slider--green{ background:linear-gradient(90deg,var(--green) var(--p,40%), rgba(255,255,255,.10) var(--p,40%)); }
.slider::-webkit-slider-thumb{
  -webkit-appearance:none; width:24px; height:24px; border-radius:50%;
  background:#fff; border:5px solid var(--orange); cursor:grab;
  box-shadow:0 4px 14px rgba(0,0,0,.5); transition:transform .18s var(--ease);
}
.slider--green::-webkit-slider-thumb{ border-color:var(--green); }
.slider::-webkit-slider-thumb:active{ cursor:grabbing; transform:scale(1.12); }
.slider::-moz-range-thumb{
  width:22px; height:22px; border-radius:50%; background:#fff; border:5px solid var(--orange);
  cursor:grab; box-shadow:0 4px 14px rgba(0,0,0,.5);
}
.slider--green::-moz-range-thumb{ border-color:var(--green); }
.slider__scale{ display:flex; justify-content:space-between; font-size:11.5px; color:var(--ink-3); margin-top:2px; }

.calc__row{ display:grid; grid-template-columns:1fr auto; align-items:baseline; gap:6px 14px; }
.calc__row em{ grid-column:2; font-style:normal; font-size:12px; color:var(--ink-3); justify-self:end; margin-top:-4px; }
.calc__k{ font-size:14px; color:var(--ink-2); }
.calc__v{
  font-size:clamp(21px,3vw,27px); font-weight:800; letter-spacing:-.03em;
  font-variant-numeric:tabular-nums; white-space:nowrap; justify-self:end;
}
.calc__row--lost .calc__v{ color:#FF9A5E; }
.calc__row--win  .calc__v{ color:var(--green); }
.calc__row--big{ padding-bottom:14px; border-bottom:1px dashed var(--line); }
.calc__row--big .calc__v{ font-size:clamp(26px,4vw,38px); }

.calc__bar{ display:flex; height:44px; border-radius:12px; overflow:hidden; border:1px solid var(--line); margin:6px 0; }
.calc__bar i{
  display:flex; align-items:center; justify-content:center; font-style:normal;
  font-size:11.5px; font-weight:700; letter-spacing:.06em; text-transform:uppercase;
  transition:width .5s var(--ease); overflow:hidden; white-space:nowrap;
}
.calc__bar-keep{ background:linear-gradient(180deg,#127a53,#0d5f41); color:#CFFCE8; }
.calc__bar-leak{ background:linear-gradient(180deg,var(--orange-2),#B3300F); color:#FFE2D3; }
.calc__bar i span{ opacity:.92; padding-inline:6px; }
.calc__note{ font-size:12.5px; color:var(--ink-3); line-height:1.5; margin-top:2px; }
.calc__out .btn{ margin-top:8px; }

/* ---------- воронка потерь ---------- */
.funnel{
  position:relative; max-width:1060px; margin-inline:auto;
  border-radius:var(--r-xl); overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-lg);
}
.funnel img{ width:100%; height:auto; display:block; }
/* смягчаем стык картинки с фоном секции */
.funnel::after{
  content:""; position:absolute; inset:0; pointer-events:none;
  background:
    radial-gradient(120% 90% at 50% 45%, transparent 42%, rgba(6,11,22,.55) 100%),
    linear-gradient(180deg, rgba(6,11,22,.35), transparent 22%, transparent 78%, rgba(6,11,22,.5));
}
.funnel__pins{ position:absolute; inset:0; }
.funnel__pin{
  position:absolute; left:var(--x); top:var(--y);
  display:inline-flex; align-items:center; gap:9px;
  padding:7px 14px 7px 11px;
  font-size:13px; font-weight:600; line-height:1.25; white-space:nowrap;
  color:var(--ink);
  background:rgba(8,14,26,.72);
  border:1px solid rgba(255,255,255,.14);
  border-radius:99px;
  backdrop-filter:blur(10px) saturate(140%);
  box-shadow:0 10px 26px -14px #000;
}
.funnel__pin i{
  width:7px; height:7px; border-radius:50%; flex:none;
  background:var(--orange); box-shadow:0 0 0 3px rgba(255,122,47,.22);
}
/* точка отсчёта каждой выноски — рядом со «своей» деталью картинки */
.funnel__pin--in{ transform:translate(-50%,-50%); }
.funnel__pin--in i{ background:#FFC46B; box-shadow:0 0 0 3px rgba(255,196,107,.24); }
.funnel__pin--l{  transform:translate(-100%,-50%); flex-direction:row-reverse; padding:7px 11px 7px 14px; }
.funnel__pin--r,
.funnel__pin--r2{ transform:translate(0,-50%); }
.funnel__pin--out{ transform:translate(-50%,-50%); }
.funnel__pin--out i{ background:var(--green); box-shadow:0 0 0 3px rgba(25,195,125,.24); }

/* на узких экранах выноски не помещаются — их роль берут карточки ниже */
@media (max-width:1100px){
  .funnel__pins{ display:none; }
  .funnel{ border-radius:var(--r-lg); }
}

/* ---------- leaks ---------- */
.sheet{
  background:#fff; border-radius:var(--r-lg); padding:clamp(10px,2vw,22px);
  box-shadow:var(--shadow-lg), 0 0 0 1px rgba(255,255,255,.08);
  max-width:1000px; margin-inline:auto;
}
.sheet--wide{ max-width:1120px; }
.sheet img{ border-radius:12px; }

.leaks{
  display:grid; gap:18px; margin-top:clamp(34px,5vw,58px);
  grid-template-columns:1fr;
}
@media (min-width:760px){ .leaks{ grid-template-columns:repeat(3,1fr); } }
.leak{
  position:relative; padding:26px 24px 28px;
  border:1px solid var(--line); border-radius:var(--r);
  background:linear-gradient(165deg, rgba(255,255,255,.045), rgba(255,255,255,.01));
  overflow:hidden;
  transition:transform .35s var(--ease), border-color .35s, box-shadow .35s;
}
.leak::before{
  content:""; position:absolute; inset:0 0 auto 0; height:2px;
  background:linear-gradient(90deg,var(--orange),transparent);
  opacity:.7;
}
.leak:hover{ transform:translateY(-4px); border-color:rgba(255,122,47,.4); box-shadow:0 24px 50px -30px rgba(255,77,46,.7); }
.leak__n{
  display:block; font-size:12px; font-weight:800; letter-spacing:.12em;
  color:var(--orange); margin-bottom:12px; font-variant-numeric:tabular-nums;
}
.leak h3{ font-size:19px; font-weight:700; letter-spacing:-.02em; line-height:1.25; }
.leak p{ margin-top:10px; color:var(--ink-2); font-size:15.5px; line-height:1.6; }

/* ---------- symptoms ---------- */
.sym{ display:grid; gap:12px; max-width:900px; margin-inline:auto; }
.sym__i{
  border:1px solid var(--line); border-radius:var(--r);
  background:linear-gradient(165deg, rgba(255,255,255,.04), rgba(255,255,255,.008));
  overflow:hidden; transition:border-color .3s, background .3s;
}
.sym__i.is-open{ border-color:rgba(53,224,245,.4); background:rgba(53,224,245,.05); }
.sym__btn{
  width:100%; display:flex; align-items:center; gap:14px; text-align:left;
  padding:20px 22px; background:none; border:0; cursor:pointer;
}
.sym__tag{
  flex:none; font-size:10.5px; font-weight:800; letter-spacing:.13em; text-transform:uppercase;
  color:#FFA76B; border:1px solid rgba(255,122,47,.3); background:rgba(255,122,47,.08);
  padding:5px 10px; border-radius:99px;
}
.sym__t{ flex:1; font-size:clamp(15.5px,1.8vw,18px); font-weight:600; letter-spacing:-.015em; line-height:1.35; }
.sym__chev{ width:22px; height:22px; flex:none; color:var(--ink-3); transition:transform .35s var(--ease), color .3s; }
.sym__i.is-open .sym__chev{ transform:rotate(180deg); color:var(--cyan); }
.sym__panel{ display:grid; grid-template-rows:0fr; transition:grid-template-rows .4s var(--ease); }
.sym__i.is-open .sym__panel{ grid-template-rows:1fr; }
.sym__panel > div{ overflow:hidden; }
.sym__panel > div{ padding-inline:22px; }
.sym__i.is-open .sym__panel > div{ padding-bottom:22px; }
.sym__panel div{ color:var(--ink-2); font-size:15.5px; line-height:1.62; }
.sym__panel b{ color:var(--ink); }

@media (max-width:560px){
  .sym__btn{ flex-wrap:wrap; padding:17px 18px; gap:10px; }
  .sym__t{ flex:1 1 100%; order:3; }
  .sym__chev{ margin-left:auto; }
  .sym__panel > div{ padding-inline:18px; }
}

/* ---------- chaos → order ---------- */
.sec--switch{ padding-block:clamp(48px,7vw,90px); }
.switch{
  display:grid; gap:14px; align-items:stretch;
  grid-template-columns:1fr;
}
@media (min-width:800px){ .switch{ grid-template-columns:1fr auto 1fr; align-items:center; } }
.switch__side{
  position:relative; border-radius:var(--r-lg); overflow:hidden;
  min-height:230px; border:1px solid var(--line);
  display:flex; align-items:flex-end;
}
.switch__side{ min-height:260px; }
.switch__svg{ position:absolute; inset:0; width:100%; height:100%; display:block; }
.switch__side--chaos{ background:linear-gradient(160deg,#161a21,#0d1016); }
.switch__side--order{ background:linear-gradient(160deg,#08161a,#081120); }

.chaos-lines path{ stroke:rgba(190,205,225,.30); stroke-width:1.6; }
.chaos-accent path{ stroke:rgba(255,122,47,.55); stroke-width:2; }
.chaos-dots circle{ fill:rgba(190,205,225,.5); }

.ord-link path{ stroke:rgba(25,195,125,.55); stroke-width:2; }
.ord-node rect{ fill:rgba(25,195,125,.10); stroke:rgba(25,195,125,.55); stroke-width:1.6; }
.ord-core circle{ fill:var(--green); }
.ord-pulse{ fill:#CFFCE8; filter:drop-shadow(0 0 6px rgba(25,195,125,.9)); }
.switch__lab{
  position:relative; z-index:2; width:100%;
  padding:22px 24px;
  background:linear-gradient(180deg,transparent, rgba(3,7,14,.9));
  display:grid; gap:3px;
}
.switch__lab b{ font-size:12px; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-3); font-weight:700; }
.switch__side--order .switch__lab b{ color:var(--green); }
.switch__lab span{ font-size:clamp(16px,2vw,20px); font-weight:700; letter-spacing:-.02em; }
.switch__arrow{
  display:grid; place-content:center; width:56px; height:56px; margin-inline:auto;
  border-radius:50%; border:1px solid var(--line); background:var(--surface); color:var(--cyan);
  box-shadow:0 0 30px -8px rgba(53,224,245,.5);
}
.switch__arrow svg{ width:26px; height:26px; }
@media (max-width:799px){ .switch__arrow{ transform:rotate(90deg); } }

/* ---------- system / blocks ---------- */
.blocks{ display:grid; gap:20px; margin-top:clamp(36px,5vw,64px); }
.block{
  display:grid; gap:0; grid-template-columns:1fr;
  border:1px solid var(--line); border-radius:var(--r-lg); overflow:hidden;
  background:linear-gradient(160deg, rgba(255,255,255,.045), rgba(255,255,255,.01));
  transition:border-color .4s, box-shadow .4s, transform .4s var(--ease);
}
@media (min-width:820px){
  .block{ grid-template-columns:.42fr .58fr; }
  .block:nth-child(even) .block__art{ order:2; }
}
.block:hover{ transform:translateY(-3px); }
.block--1:hover{ border-color:rgba(59,130,246,.45); box-shadow:0 30px 60px -38px rgba(59,130,246,.85); }
.block--2:hover{ border-color:rgba(255,122,47,.45); box-shadow:0 30px 60px -38px rgba(255,122,47,.85); }
.block--3:hover{ border-color:rgba(53,224,245,.45); box-shadow:0 30px 60px -38px rgba(53,224,245,.85); }

.block__art{ position:relative; background:#fff; display:grid; place-items:center; padding:18px; }
.block--3 .block__art{ background:#0A1A2E; }
.block__art img{ max-height:340px; width:auto; object-fit:contain; }
.block__body{ padding:clamp(24px,3.4vw,40px); display:grid; align-content:center; gap:4px; }
.block__n{
  font-size:11.5px; font-weight:800; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-3);
}
.block--1 .block__n{ color:#7FB6FF; }
.block--2 .block__n{ color:#FFA76B; }
.block--3 .block__n{ color:var(--cyan); }
.block h3{
  font-size:clamp(24px,3vw,34px); font-weight:800; letter-spacing:-.03em; line-height:1.1;
  margin:6px 0 18px; display:grid; gap:5px;
}
.block h3 small{ font-size:14px; font-weight:500; letter-spacing:0; color:var(--ink-3); }
.block dl{ display:grid; gap:0; }
.block dt{
  font-size:11.5px; font-weight:800; letter-spacing:.13em; text-transform:uppercase; color:var(--ink-3);
  margin:20px 0 6px;
}
.block dt:first-child{ margin-top:0; }
.block dd{ margin:0; color:var(--ink-2); font-size:15.5px; line-height:1.6; }
.block dd b{ color:var(--ink); }
.block__res{ color:var(--ink) !important; font-weight:600; }
.block--1 .block__res{ border-left:2px solid #3B82F6; padding-left:14px; }
.block--2 .block__res{ border-left:2px solid var(--orange); padding-left:14px; }
.block--3 .block__res{ border-left:2px solid var(--cyan); padding-left:14px; }

/* ---------- engine ---------- */
.sec--engine{ background:linear-gradient(180deg,var(--bg),var(--bg-2) 50%,var(--bg)); }
.checks{ display:grid; gap:13px; margin-top:30px; }
.checks li{ position:relative; padding-left:36px; color:var(--ink-2); font-size:16.5px; }
.checks li::before{
  content:""; position:absolute; left:0; top:2px; width:22px; height:22px; border-radius:7px;
  background:rgba(25,195,125,.14); border:1px solid rgba(25,195,125,.4);
}
.checks li::after{
  content:""; position:absolute; left:6.5px; top:8.5px; width:9px; height:5px;
  border-left:2px solid var(--green); border-bottom:2px solid var(--green);
  transform:rotate(-45deg);
}

/* ---------- process ---------- */
.steps{ display:grid; gap:18px; grid-template-columns:1fr; counter-reset:s; }
@media (min-width:820px){ .steps{ grid-template-columns:repeat(3,1fr); } }
.step{
  position:relative; padding:30px 26px 32px;
  border:1px solid var(--line); border-radius:var(--r-lg);
  background:linear-gradient(165deg, rgba(255,255,255,.045), rgba(255,255,255,.01));
  transition:border-color .35s, transform .35s var(--ease);
}
.step:hover{ border-color:rgba(53,224,245,.38); transform:translateY(-4px); }
.step::after{
  content:""; position:absolute; right:-19px; top:50%; width:20px; height:1px;
  background:linear-gradient(90deg,var(--cyan),transparent); display:none;
}
@media (min-width:820px){ .steps .step:not(:last-child)::after{ display:block; } }
.step__n{
  display:inline-grid; place-content:center; width:46px; height:46px; border-radius:14px;
  background:rgba(53,224,245,.10); border:1px solid rgba(53,224,245,.28); color:var(--cyan);
  font-weight:800; font-size:15px; font-variant-numeric:tabular-nums; margin-bottom:18px;
}
.step h3{ font-size:22px; font-weight:800; letter-spacing:-.025em; }
.step__time{ color:var(--cyan); font-size:13.5px; font-weight:600; margin-top:4px; }
.step p:last-child{ color:var(--ink-2); font-size:15.5px; line-height:1.6; margin-top:12px; }

.manifest{
  display:flex; gap:clamp(18px,3vw,32px); align-items:center; flex-wrap:wrap;
  margin-top:clamp(28px,4vw,44px); padding:clamp(28px,4vw,48px);
  border-radius:var(--r-xl); border:1px solid rgba(53,224,245,.22);
  background:
    radial-gradient(90% 130% at 8% 50%, rgba(53,224,245,.13), transparent 62%),
    linear-gradient(120deg, rgba(11,58,102,.55), rgba(8,18,34,.75));
  box-shadow:var(--shadow-md);
}
.manifest__bang{
  flex:none; display:grid; place-content:center;
  width:58px; height:58px; border-radius:16px;
  background:linear-gradient(180deg,#FF5B3D,#D32B12);
  font-size:34px; font-weight:900; line-height:1; color:#fff;
  box-shadow:0 12px 30px -12px rgba(255,77,46,.9);
}
.manifest h3{ font-size:clamp(24px,3.6vw,40px); font-weight:900; letter-spacing:-.035em; line-height:1.08; }
.manifest p{ color:var(--ink-2); margin-top:12px; max-width:56ch; font-size:16px; }

/* ---------- math ---------- */
.sec--math{
  text-align:center;
  background:
    radial-gradient(70% 90% at 50% 0%, rgba(53,224,245,.10), transparent 60%),
    var(--bg);
  border-block:1px solid var(--line-soft);
}
.math{ display:grid; justify-items:center; }
.math__icon{ width:96px; height:auto; color:var(--cyan); opacity:.55; margin-bottom:26px;
  filter:drop-shadow(0 0 14px rgba(53,224,245,.45)); }
.math__h{
  font-size:clamp(28px,5.4vw,64px); font-weight:900; letter-spacing:-.04em; line-height:1.08;
  text-wrap:balance; font-variant-numeric:tabular-nums;
}
.math__arrow{ color:var(--cyan); display:inline-block; animation:nudge 2.4s var(--ease) infinite; }
@keyframes nudge{ 0%,100%{ transform:translateX(0) } 50%{ transform:translateX(8px) } }
.math__note{
  margin-top:26px; color:var(--ink-3); font-style:italic; font-size:clamp(15px,1.8vw,18px);
  max-width:52ch; text-wrap:pretty;
}

/* ---------- clients marquee ---------- */
.marquee{
  position:relative; overflow:hidden; padding-block:8px;
  mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent);
}
.marquee__track{ display:flex; width:max-content; animation:scroll 46s linear infinite; }
.marquee:hover .marquee__track{ animation-play-state:paused; }
@keyframes scroll{ to{ transform:translateX(-50%); } }
.marquee__set{ display:flex; align-items:center; gap:clamp(14px,2.6vw,30px); padding-right:clamp(14px,2.6vw,30px); }
.marquee__set li{
  flex:none; display:flex; align-items:center; justify-content:center;
  width:clamp(152px,18vw,196px);
  background:#fff; border-radius:16px; padding:11px 16px;
  box-shadow:0 14px 30px -20px rgba(0,0,0,.9);
  transition:transform .35s var(--ease), box-shadow .35s;
}
.marquee__set img{
  width:100%; height:auto;
  filter:grayscale(1) contrast(1.05); opacity:.72;
  transition:filter .35s, opacity .35s;
}
.marquee__set li:hover{ transform:translateY(-4px); box-shadow:0 20px 36px -18px rgba(53,224,245,.5); }
.marquee__set li:hover img{ filter:none; opacity:1; }

/* ---------- faq ---------- */
.sec--cases{ padding-bottom:clamp(40px,5vw,70px); }
.sec--faq{ padding-top:clamp(48px,6vw,90px); }
.faq{ display:grid; gap:10px; }
.faq__i{ border-bottom:1px solid var(--line-soft); }
.faq__q{
  width:100%; display:flex; align-items:center; justify-content:space-between; gap:18px;
  padding:22px 4px; background:none; border:0; cursor:pointer; text-align:left;
  font-size:clamp(16px,1.9vw,19px); font-weight:600; letter-spacing:-.02em; line-height:1.35;
  transition:color .25s;
}
.faq__q:hover{ color:var(--cyan); }
.faq__q svg{ width:22px; height:22px; flex:none; color:var(--cyan); transition:transform .35s var(--ease); }
.faq__i.is-open .faq__q svg{ transform:rotate(135deg); }
.faq__a{ display:grid; grid-template-rows:0fr; transition:grid-template-rows .4s var(--ease); }
.faq__i.is-open .faq__a{ grid-template-rows:1fr; }
.faq__a > div{ overflow:hidden; color:var(--ink-2); font-size:16px; line-height:1.65; }
.faq__i.is-open .faq__a > div{ padding-bottom:24px; padding-right:40px; }

/* ---------- brief ---------- */
.sec--brief{
  background:
    radial-gradient(90% 70% at 50% 0%, rgba(53,224,245,.12), transparent 60%),
    linear-gradient(180deg,var(--bg),#050A14);
}
.brief{
  border:1px solid rgba(53,224,245,.2); border-radius:var(--r-xl);
  background:linear-gradient(165deg, rgba(255,255,255,.05), rgba(255,255,255,.012));
  box-shadow:var(--shadow-lg);
  padding:clamp(26px,4.5vw,56px);
}
.brief__head{ text-align:center; margin-bottom:clamp(26px,4vw,42px); }
.form{ display:grid; gap:18px; grid-template-columns:1fr; }
@media (min-width:700px){ .form{ grid-template-columns:1fr 1fr; } }
.field--full{ grid-column:1/-1; }
.field__err{ font-size:12.5px; color:#FF8A6B; min-height:0; }
.field.is-bad .field__in{ border-color:#FF5B3D; box-shadow:0 0 0 3px rgba(255,91,61,.14); }
.form__foot{ grid-column:1/-1; display:grid; gap:14px; justify-items:center; text-align:center; margin-top:6px; }
.form__foot .btn{ min-width:min(100%,320px); }
.form__note{ font-size:12.5px; color:var(--ink-3); max-width:52ch; line-height:1.55; }
.form__note a{ color:var(--cyan); text-decoration:underline; text-underline-offset:2px; }
.form__note a:hover{ opacity:.8; }
.form__status{ grid-column:1/-1; text-align:center; font-size:15px; font-weight:600; color:var(--green); min-height:1.2em; }
.form__status.is-bad{ color:#FF8A6B; }

.brief__alt{
  display:flex; flex-wrap:wrap; align-items:center; justify-content:center; gap:12px;
  margin-top:clamp(24px,3.5vw,36px); padding-top:clamp(22px,3vw,32px); border-top:1px solid var(--line-soft);
}
.brief__alt > span{ color:var(--ink-3); font-size:14.5px; }

/* ---------- footer ---------- */
.footer{ border-top:1px solid var(--line-soft); padding-block:clamp(40px,6vw,64px) calc(clamp(40px,6vw,64px) + env(safe-area-inset-bottom)); background:#04080F; }
.footer__in{ display:grid; gap:16px; justify-items:center; text-align:center; }
.footer__desc{ color:var(--ink-3); max-width:48ch; font-size:15px; }
.footer__contacts{ display:flex; gap:22px; flex-wrap:wrap; justify-content:center; margin-top:4px; }
.footer__contacts a{ font-weight:600; color:var(--cyan); transition:opacity .2s; }
.footer__contacts a:hover{ opacity:.75; }
.footer__copy{ color:var(--ink-3); font-size:13px; margin-top:8px; }

/* ---------- sticky mobile cta ---------- */
.cta-bar{
  position:fixed; left:0; right:0; bottom:0; z-index:100;
  display:flex; gap:10px; align-items:center;
  padding:12px var(--pad) calc(12px + env(safe-area-inset-bottom));
  background:rgba(6,11,22,.92); backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
  transform:translateY(120%); transition:transform .4s var(--ease);
}
.cta-bar.is-on{ transform:translateY(0); }
.cta-bar__tel{
  flex:none; width:50px; height:50px; display:grid; place-content:center;
  border-radius:14px; border:1px solid var(--line); background:rgba(255,255,255,.05); color:var(--cyan);
}
.cta-bar__tel svg{ width:22px; height:22px; }
@media (min-width:1180px){ .cta-bar{ display:none; } }
body:has(.cta-bar.is-on) .footer{ padding-bottom:120px; }

/* ---------- reveal ---------- */
.reveal{ opacity:0; transform:translateY(26px); }
.reveal.is-in{
  opacity:1; transform:none;
  transition:opacity .8s var(--ease), transform .8s var(--ease);
  transition-delay:calc(var(--d,0) * 90ms);
}
.reveal[data-d="1"]{ --d:1 } .reveal[data-d="2"]{ --d:2 }
.reveal[data-d="3"]{ --d:3 } .reveal[data-d="4"]{ --d:4 }
.reveal[data-d="5"]{ --d:5 }

@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  .hero__art img, .hero__art-ring, .math__arrow, .dot{ animation:none; }
  .marquee__track{ animation:none; }
  .ord-pulse{ display:none; }
  .btn:hover{ transform:none; }
  *{ scroll-behavior:auto !important; }
}