/* ============================================================
   Roblox · AgileKidz — лендинг курса
   Стиль: kidsstar v3 (тёплая бумага + один акцентный цвет)
   Акцент — Roblox red
   ============================================================ */
:root{
  --paper:#FAFAF7;
  --paper-2:#F2F1EC;
  --white:#FFFFFF;
  --ink:#16181D;
  --ink-2:#22252B;
  --text:#1D1F24;
  --muted:#6B6F78;
  --dim:#9A9EA6;
  --line:rgba(22,24,29,.1);
  --line-strong:rgba(22,24,29,.2);
  --line-inv:rgba(250,250,247,.14);
  --red:#E2231A;
  --red-deep:#BE1B13;
  --red-soft:rgba(226,35,26,.1);

  --font-ui:'Inter', -apple-system, system-ui, sans-serif;
  --font-mono:'JetBrains Mono', ui-monospace, monospace;

  --r:18px;
  --header-h:64px;
  --tr:.28s cubic-bezier(.25,.1,.25,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 24px)}
body{
  font-family:var(--font-ui);
  font-size:16px;line-height:1.6;
  color:var(--text);background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:var(--red);color:#fff}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}

.container{width:min(1120px,100% - 48px);margin-inline:auto}

.mono{
  font-family:var(--font-mono);
  font-size:11px;font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;
  color:var(--dim);
}
.mono--red{color:var(--red)}

/* ---------- Кнопки ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-weight:600;font-size:15px;letter-spacing:-.01em;
  padding:14px 28px;border-radius:999px;
  transition:opacity var(--tr), background var(--tr), border-color var(--tr), transform var(--tr), box-shadow var(--tr);
  white-space:nowrap;
}
.btn--primary{background:var(--ink);color:var(--paper)}
.btn--primary:hover{background:var(--ink-2);transform:translateY(-1px)}
.btn--red{background:var(--red);color:#fff;box-shadow:0 6px 20px rgba(226,35,26,.3)}
.btn--red:hover{background:var(--red-deep);transform:translateY(-1px)}
.btn--ghost{border:1px solid var(--line-strong);color:var(--text)}
.btn--ghost:hover{border-color:var(--ink)}
.btn--block{width:100%}
.btn--lg{padding:16px 34px;font-size:16px}
.btn--sm{padding:9px 20px;font-size:14px}

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

/* ---------- Header ---------- */
.header{
  position:fixed;inset:0 0 auto 0;z-index:100;height:var(--header-h);
  background:rgba(250,250,247,.75);
  backdrop-filter:blur(20px) saturate(1.4);
  -webkit-backdrop-filter:blur(20px) saturate(1.4);
  border-bottom:1px solid transparent;
  transition:border-color var(--tr), box-shadow var(--tr);
}
.header--scrolled{border-color:var(--line);box-shadow:0 1px 24px rgba(22,24,29,.06)}
.header__inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;gap:11px;font-weight:700;font-size:17px;letter-spacing:-.02em}
.logo__mark{
  width:22px;height:22px;flex:none;
  background:var(--red);
  border-radius:6px;
  transform:rotate(45deg);
  position:relative;
  box-shadow:0 4px 12px rgba(226,35,26,.35);
}
.logo__mark::after{
  content:"";position:absolute;inset:6px;
  background:var(--paper);border-radius:2px;
}
.logo__sub{font-family:var(--font-mono);font-size:9px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);margin-left:2px}
.nav{display:flex;align-items:center;gap:30px}
.nav__link{font-size:14px;font-weight:500;color:var(--muted);transition:color var(--tr)}
.nav__link:hover{color:var(--red-deep)}

.burger{display:none;flex-direction:column;gap:6px;padding:8px}
.burger span{width:22px;height:1.5px;background:var(--text);transition:transform var(--tr), opacity var(--tr)}
.burger--active span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.burger--active span:nth-child(2){opacity:0}
.burger--active span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{
  padding:calc(var(--header-h) + 88px) 0 0;
  position:relative;
}
.hero__topo{
  position:absolute;top:0;right:0;width:56%;height:100%;z-index:0;pointer-events:none;
  opacity:0;
  mask-image:radial-gradient(90% 90% at 70% 35%, #000 0%, transparent 72%);
  -webkit-mask-image:radial-gradient(90% 90% at 70% 35%, #000 0%, transparent 72%);
}
.hero .container{position:relative;z-index:1}
.badge{
  display:inline-flex;align-items:center;gap:10px;
  border:1px solid var(--line-strong);border-radius:999px;
  padding:8px 18px;margin-bottom:36px;
  font-family:var(--font-mono);font-size:11px;font-weight:500;
  letter-spacing:.14em;text-transform:uppercase;color:var(--muted);
  background:var(--white);
}
.badge::before{
  content:"";width:7px;height:7px;border-radius:50%;
  background:var(--live);
  animation:liveDot 1.9s cubic-bezier(.4,0,.6,1) infinite;
}
.badge b{color:var(--live);font-weight:700}
.badge__sep{color:var(--dim);margin:0 2px}
.badge__date{color:var(--red-deep);font-weight:700}
@keyframes liveDot{
  0%{box-shadow:0 0 0 0 rgba(39,179,106,.45)}
  70%{box-shadow:0 0 0 8px rgba(39,179,106,0)}
  100%{box-shadow:0 0 0 0 rgba(39,179,106,0)}
}
.hero__title{
  font-size:clamp(38px,6vw,76px);
  font-weight:300;letter-spacing:-.035em;line-height:1.05;
  max-width:18ch;margin-bottom:28px;
}
.hero__title strong{font-weight:650}
.hero__title .accent{color:var(--red)}
.hero__subtitle{font-size:18px;color:var(--muted);max-width:56ch;line-height:1.7;margin-bottom:40px}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:80px}

.hero__stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:16px;align-items:stretch;
  padding-bottom:112px;
}
.hero__stat{
  background:var(--white);border:1px solid var(--line);border-radius:16px;
  padding:24px 24px 20px;position:relative;
  transition:border-color var(--tr), transform var(--tr), box-shadow var(--tr);
}
.hero__stat::after{
  content:"";position:absolute;top:10px;right:10px;width:18px;height:18px;
  background:
    linear-gradient(var(--red),var(--red)) top right / 14px 1.5px,
    linear-gradient(var(--red),var(--red)) top right / 1.5px 14px;
  background-repeat:no-repeat;opacity:.85;
}
.hero__stat:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:0 12px 28px rgba(22,24,29,.07)}
.hero__stat strong{
  display:block;font-size:clamp(24px,2.4vw,31px);font-weight:700;
  letter-spacing:-.02em;line-height:1.18;margin-bottom:5px;
  font-variant-numeric:tabular-nums;
}
.hero__stat span{font-size:13px;color:var(--muted)}

/* ---------- Секции ---------- */
.section{padding:112px 0;border-top:1px solid var(--line)}
.section--ink{background-color:var(--ink);color:var(--paper);border-top:none}
.section__head{margin-bottom:60px;max-width:720px}
.section__head--center{margin-inline:auto;text-align:center}
.section__head--center .section__desc{margin-inline:auto}
.section__label{display:block;margin-bottom:18px}
.section__title{
  font-size:clamp(28px,3.4vw,42px);
  font-weight:400;letter-spacing:-.03em;line-height:1.15;
  margin-bottom:16px;
}
.section__desc{font-size:17px;color:var(--muted);line-height:1.7}
.section--ink .section__desc{color:rgba(250,250,247,.6)}

/* ---------- Для кого ---------- */
.fit{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background-color:var(--white)}
.fit__col{padding:44px}
.fit__col + .fit__col{border-left:1px solid var(--line);background:var(--paper)}
.fit__col h3{display:flex;align-items:center;gap:12px;font-size:16.5px;font-weight:600;margin-bottom:26px}
.fit__sign{width:32px;height:32px;border-radius:10px;position:relative;flex:none;border:none}
.fit__sign::before,.fit__sign::after{
  content:"";position:absolute;left:50%;top:50%;translate:-50% -50%;
  background:currentColor;border-radius:2px;
}
.fit__sign::before{width:14px;height:2px}
.fit__sign--plus{background:var(--red);color:#fff;box-shadow:0 4px 12px rgba(226,35,26,.35)}
.fit__sign--plus::after{width:2px;height:14px}
.fit__sign--minus{border:1.5px solid var(--line-strong);color:var(--dim)}
.fit__col ul{display:grid;gap:15px}
.fit__col li{padding-left:22px;position:relative;font-size:15px;line-height:1.6}
.fit__col--yes li::before{content:"";position:absolute;left:0;top:11px;width:9px;height:1.5px;background:var(--red)}
.fit__col--no li{color:var(--muted)}
.fit__col--no li::before{content:"";position:absolute;left:0;top:11px;width:9px;height:1.5px;background:var(--dim)}

/* ---------- Методика ---------- */
.method{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin-bottom:56px}
.method__item{background-color:var(--white);padding:40px 36px;position:relative;overflow:hidden;transition:background var(--tr), transform var(--tr)}
.method__item:hover{background:var(--paper);transform:translateY(-2px)}
.method__item::after{
  position:absolute;pointer-events:none;line-height:1;
  top:-14px;right:2px;font-size:128px;
  font-weight:800;letter-spacing:-.04em;color:var(--red);
  opacity:.07;transition:opacity var(--tr), transform .5s cubic-bezier(.22,.61,.36,1);
}
.method__item:nth-child(1)::after{content:"A"}
.method__item:nth-child(2)::after{content:"B"}
.method__item:nth-child(3)::after{content:"C"}
.method__item:hover::after{opacity:.14;transform:translateY(-4px)}
.method__item::before{
  content:"";position:absolute;left:0;top:0;height:2px;width:0;
  background:linear-gradient(90deg, var(--red), var(--red-deep));
  transition:width .45s cubic-bezier(.22,.61,.36,1);
}
.method__item:hover::before{width:100%}
.method__item .mono{display:block;margin-bottom:48px;position:relative;z-index:1}
.method__item h3{font-size:18.5px;font-weight:600;letter-spacing:-.01em;margin-bottom:12px}
.method__item p{font-size:15px;color:var(--muted);line-height:1.7}

/* ---------- Программа: стренд ---------- */
.strand{position:relative;max-width:860px;margin-inline:auto}
.strand::before{
  content:"";position:absolute;left:11px;top:8px;bottom:8px;width:1.5px;
  background:linear-gradient(180deg, var(--red), var(--line-strong) 65%, transparent);
  transform:scaleY(0);transform-origin:top;
  transition:transform 1.6s cubic-bezier(.22,.61,.36,1) .15s;
}
.strand.in-view::before{transform:scaleY(1)}
.strand__node{position:relative;padding:0 0 68px 64px}
.strand__node:last-child{padding-bottom:0}
.strand__dot{
  position:absolute;left:0;top:5px;
  width:24px;height:24px;border-radius:50%;
  background:var(--white);border:1.5px solid var(--red);
  display:flex;align-items:center;justify-content:center;
  scale:.4;opacity:0;
  transition:scale .5s cubic-bezier(.34,1.56,.64,1), opacity .4s ease;
  transition-delay:var(--d,0ms);
}
.strand.in-view .strand__dot{scale:1;opacity:1}
.strand__dot::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--red)}
.strand__node:nth-child(n+2) .strand__dot{border-color:var(--line-strong)}
.strand__node:nth-child(n+2) .strand__dot::after{background:var(--dim)}
.strand__meta{display:flex;flex-wrap:wrap;gap:18px;margin-bottom:12px}
.strand__meta .mono--red{font-size:12px}
.strand__node h3{font-size:23px;font-weight:500;letter-spacing:-.02em;margin-bottom:8px}
.strand__goal{font-size:15px;color:var(--muted);margin-bottom:22px;max-width:60ch}
.strand__topics{display:flex;flex-wrap:wrap;gap:10px}
.strand__topics li{
  font-size:13.5px;color:var(--muted);
  background:var(--white);border:1px solid var(--line);border-radius:999px;
  padding:7px 16px;
  transition:border-color var(--tr), color var(--tr), transform var(--tr);
}
.strand__topics li:hover{border-color:var(--red);color:var(--text);transform:translateY(-1px)}

/* ---------- Результат (тёмная лента) ---------- */
.result{
  margin-top:80px;
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:auto 1fr;
  gap:40px 96px;align-items:center;
  border-radius:var(--r);padding:48px 56px;
  color:var(--paper);
  background-color:var(--ink);
  border:1px solid rgba(226,35,26,.32);
}
.result::before{
  content:"";position:absolute;left:-140px;top:-150px;width:400px;height:400px;
  background:radial-gradient(circle, rgba(226,35,26,.17), transparent 70%);
  animation:glowDriftA 16s ease-in-out infinite alternate;
  pointer-events:none;z-index:0;
}
.result::after{
  content:"";position:absolute;right:-150px;bottom:-170px;width:460px;height:460px;
  background:radial-gradient(circle, rgba(226,35,26,.14), transparent 70%);
  animation:glowDriftB 20s ease-in-out infinite alternate;
  pointer-events:none;z-index:0;
}
.result > *{position:relative;z-index:1}
@keyframes glowDriftA{from{transform:translate(0,0)}to{transform:translate(110px,80px)}}
@keyframes glowDriftB{from{transform:translate(0,0)}to{transform:translate(-140px,-90px)}}
.result__sheen{
  position:absolute;top:-10%;left:0;width:42%;height:120%;
  background:linear-gradient(100deg, transparent, rgba(255,255,255,.07) 50%, transparent);
  transform:skewX(-18deg) translateX(-200%);
  animation:featSheen 7.5s cubic-bezier(.4,0,.2,1) infinite;
  animation-delay:1.2s;
  pointer-events:none;z-index:0;
}
.result__head h3{font-size:clamp(26px,2.8vw,35px);font-weight:600;max-width:16ch;line-height:1.25;letter-spacing:-.02em}
.result__head h3 em{font-style:normal;color:var(--red);white-space:nowrap;font-weight:800}
.result__head .mono{display:block;margin-bottom:14px}
.result__bar{
  display:block;width:72px;height:2px;margin-top:20px;
  background:linear-gradient(90deg, var(--red), transparent);
  transform:scaleX(0);transform-origin:left;
  transition:transform 1s cubic-bezier(.22,.61,.36,1) .4s;
}
.result.in-view .result__bar{transform:scaleX(1)}
.result ul{display:grid;gap:14px;max-width:560px}
.result li{display:flex;gap:16px;align-items:baseline;font-size:15.5px;color:rgba(250,250,247,.75)}
.result li b{font-family:var(--font-mono);font-weight:400;font-size:12.5px;color:var(--red);flex:none}

/* ---------- Ученики ---------- */
.student{display:grid;grid-template-columns:1.15fr .85fr;gap:72px;align-items:start}
.student + .student{margin-top:104px}
.student__name{margin-bottom:22px}
.student__name h3{
  font-size:clamp(34px,3.6vw,48px);font-weight:700;
  letter-spacing:-.025em;line-height:1.1;color:var(--red);
}
.student__name .mono{display:block;margin-top:10px}
.student__bio{font-size:16.5px;color:var(--muted);line-height:1.75;margin-bottom:0}
.student__miles{display:grid;border-top:1px solid var(--line);margin-top:28px}
.student__miles li{
  display:flex;gap:22px;align-items:baseline;
  padding:15px 0;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--muted);
}
.student__miles b{
  font-family:var(--font-mono);font-weight:500;font-size:12px;
  color:var(--red-deep);flex:none;width:56px;white-space:nowrap;
}
.student__media{
  position:relative;justify-self:end;width:min(100%,400px);
  border-radius:var(--r);overflow:hidden;margin:6px 0 0;
  border:1px solid var(--line);background:#0D0F13;
  box-shadow:-16px 16px 0 var(--red-soft);
}
.student__media video{width:100%;aspect-ratio:9/16;display:block;object-fit:cover;background:#0D0F13}
.student__media::after{
  content:"";position:absolute;inset:14px;pointer-events:none;
  background:
    linear-gradient(var(--red),var(--red)) top left / 22px 1.5px,
    linear-gradient(var(--red),var(--red)) top left / 1.5px 22px,
    linear-gradient(var(--red),var(--red)) bottom right / 22px 1.5px,
    linear-gradient(var(--red),var(--red)) bottom right / 1.5px 22px;
  background-repeat:no-repeat;opacity:.85;
}
.student--flip{grid-template-columns:.85fr 1.15fr}
.student--flip > div{order:2}
.student--flip .student__media{order:1;justify-self:start;box-shadow:16px 16px 0 var(--red-soft)}

/* ---------- Формат ---------- */
.format{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.format__item{background-color:var(--white);padding:34px 30px;position:relative;overflow:hidden;transition:background var(--tr), transform var(--tr)}
.format__item:hover{background:var(--paper);transform:translateY(-2px)}
.format__item::after{
  position:absolute;pointer-events:none;line-height:1;
  top:-8px;right:6px;font-size:76px;
  font-weight:800;letter-spacing:-.04em;color:var(--red);
  opacity:.07;transition:opacity var(--tr), transform .5s cubic-bezier(.22,.61,.36,1);
}
.format__item:nth-child(1)::after{content:"01"}
.format__item:nth-child(2)::after{content:"02"}
.format__item:nth-child(3)::after{content:"03"}
.format__item:nth-child(4)::after{content:"04"}
.format__item:nth-child(5)::after{content:"05"}
.format__item:nth-child(6)::after{content:"06"}
.format__item:hover::after{opacity:.14;transform:translateY(-4px)}
.format__item::before{
  content:"";position:absolute;left:0;top:0;height:2px;width:0;
  background:linear-gradient(90deg, var(--red), var(--red-deep));
  transition:width .45s cubic-bezier(.22,.61,.36,1);
}
.format__item:hover::before{width:100%}
.format__item .mono{display:block;margin-bottom:36px;position:relative;z-index:1}
.format__item h3{font-size:16px;font-weight:600;margin-bottom:9px;letter-spacing:-.01em}
.format__item p{font-size:14.5px;color:var(--muted);line-height:1.65}

/* ---------- Цены ---------- */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:24px;align-items:stretch}
.price{
  border:1px solid var(--line);border-radius:var(--r);
  padding:40px 34px;display:flex;flex-direction:column;
  background-color:var(--white);
  transition:border-color var(--tr), box-shadow var(--tr), transform var(--tr);
}
.price:hover{border-color:var(--line-strong);box-shadow:0 12px 32px rgba(22,24,29,.06);transform:translateY(-4px)}
.pricing .price:nth-child(2){position:relative;overflow:hidden}
.pricing .price:nth-child(2)::after{
  content:"";position:absolute;left:34px;right:34px;bottom:0;height:2px;
  background:linear-gradient(90deg, var(--red), var(--red-deep));
  transform:scaleX(0);transform-origin:left;
  transition:transform .5s cubic-bezier(.22,.61,.36,1);
}
.pricing .price:nth-child(2):hover::after{transform:scaleX(1)}
.price--featured{
  background-color:var(--ink);color:var(--paper);border-color:var(--ink);
  box-shadow:0 20px 48px rgba(22,24,29,.22);
  position:relative;overflow:hidden;
  animation:featGlow 4.5s ease-in-out infinite;
}
.price--featured > *{position:relative;z-index:1}
.price--featured::before{
  content:"";position:absolute;top:-10%;left:0;width:46%;height:120%;z-index:0;
  background:linear-gradient(100deg, transparent, rgba(255,255,255,.09) 50%, transparent);
  transform:skewX(-18deg) translateX(-180%);
  animation:featSheen 6.5s cubic-bezier(.4,0,.2,1) infinite;
  pointer-events:none;
}
@keyframes featSheen{
  0%,58%{transform:skewX(-18deg) translateX(-180%)}
  86%,100%{transform:skewX(-18deg) translateX(440%)}
}
@keyframes featGlow{
  0%,100%{box-shadow:0 20px 48px rgba(22,24,29,.22)}
  50%{box-shadow:0 22px 52px rgba(22,24,29,.24), 0 0 36px 2px rgba(226,35,26,.22)}
}
.price--featured:hover{transform:translateY(-6px)}
.price--featured .price__tag{text-shadow:0 0 14px rgba(226,35,26,.5)}
.price__tag{display:block;margin-bottom:22px;min-height:14px}
.price h3{font-size:16px;font-weight:600;margin-bottom:16px}
.price__amount{
  font-size:46px;font-weight:600;letter-spacing:-.03em;line-height:1;
  font-variant-numeric:tabular-nums;
  display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;
  margin-bottom:6px;
}
.price--featured .price__amount{font-size:50px}
.price__amount small{font-size:15px;font-weight:400;color:var(--muted);letter-spacing:0;white-space:nowrap}
.price--featured .price__amount small{color:rgba(250,250,247,.55)}
.price__desc{font-size:13.5px;color:var(--muted);margin-bottom:26px}
.price--featured .price__desc{color:var(--red)}
.price ul{display:grid;gap:12px;margin-bottom:34px;flex:1}
.price li{padding-left:22px;position:relative;font-size:14.5px;color:var(--muted)}
.price li::before{content:"";position:absolute;left:0;top:10px;width:9px;height:1.5px;background:var(--dim)}
.price--featured li{color:rgba(250,250,247,.85)}
.price--featured li::before{background:var(--red)}

.calc{
  border:1px solid var(--line);border-radius:var(--r);background-color:var(--white);
  padding:26px 34px;
  display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
}
.calc p{font-size:15px;color:var(--muted)}
.calc .old{text-decoration:line-through;text-decoration-color:var(--dim);font-weight:500}
.calc strong{color:var(--text);font-weight:700;font-size:19px;font-variant-numeric:tabular-nums}
.calc__savings{
  font-family:var(--font-mono);font-size:13px;font-weight:500;letter-spacing:.1em;
  color:#fff;background:var(--red);border-radius:999px;
  padding:10px 22px;white-space:nowrap;
}

/* ---------- FAQ ---------- */
.faq{max-width:760px;margin-inline:auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;
  padding:24px 48px 24px 0;
  font-size:16.5px;font-weight:600;letter-spacing:-.01em;
  position:relative;transition:color var(--tr);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--red-deep)}
.faq-item summary::after{
  content:"+";position:absolute;right:4px;top:50%;translate:0 -50%;
  font-weight:300;font-size:22px;color:var(--dim);
  transition:transform var(--tr), color var(--tr);
}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--red)}
.faq-item p{padding:0 48px 26px 0;font-size:15px;color:var(--muted);line-height:1.7}
.faq-item[open] p{animation:faqIn .35s cubic-bezier(.22,.61,.36,1)}
@keyframes faqIn{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:none}}

/* ---------- Запись (тёмный финал) ---------- */
.signup-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}
.signup__benefits{display:grid;margin:34px 0;border-top:1px solid var(--line-inv)}
.signup__benefits li{
  display:flex;gap:20px;align-items:baseline;
  padding:14px 0;border-bottom:1px solid var(--line-inv);
  font-size:15px;color:rgba(250,250,247,.75);
}
.signup__benefits b{font-family:var(--font-mono);font-weight:400;font-size:12.5px;color:var(--red);flex:none;width:28px}
.signup__startcard{
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  border:1px solid rgba(226,35,26,.35);border-radius:16px;
  background:rgba(226,35,26,.07);
  padding:18px 24px;
}
.startdot{
  width:10px;height:10px;flex:none;border-radius:50%;
  background:var(--live);
  animation:liveDot 1.9s cubic-bezier(.4,0,.6,1) infinite;
}
.signup__startinfo{display:grid;gap:2px}
.signup__startinfo .mono{font-size:10px}
.signup__startinfo strong{font-size:17px;font-weight:600;color:var(--paper);letter-spacing:-.01em}
.signup__days{
  margin-left:auto;
  color:var(--red);border:1px solid rgba(226,35,26,.4);border-radius:999px;
  padding:8px 16px;letter-spacing:.1em;white-space:nowrap;
}

.form{
  background:var(--white);color:var(--text);
  border-radius:var(--r);
  padding:44px 40px;
  box-shadow:0 24px 64px rgba(0,0,0,.35);
}
.form-group{margin-bottom:20px}
.form-group label{
  display:block;
  font-family:var(--font-mono);font-size:10.5px;font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;color:var(--dim);
  margin-bottom:9px;
}
.form-group input[type=text],
.form-group input[type=tel],
.form-group select,
.form-group textarea{
  width:100%;font:inherit;font-size:15px;color:var(--text);
  background:var(--paper);
  border:1px solid var(--line-strong);border-radius:12px;
  padding:13px 16px;
  transition:border-color var(--tr), box-shadow var(--tr), background var(--tr);
}
.form-group select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--dim) 50%),linear-gradient(135deg,var(--dim) 50%,transparent 50%);background-position:calc(100% - 21px) 50%,calc(100% - 16px) 50%;background-size:5px 5px;background-repeat:no-repeat}
.form-group input::placeholder,.form-group textarea::placeholder{color:var(--dim)}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  outline:none;background:var(--white);
  border-color:var(--red);box-shadow:0 0 0 3px var(--red-soft);
}
.form-group input.error,.form-group select.error{border-color:#D6452E;box-shadow:0 0 0 3px rgba(214,69,46,.12)}
.form-group textarea{resize:vertical;min-height:88px}
.checkbox-label{display:flex;gap:12px;align-items:flex-start;font-size:13.5px;color:var(--muted);cursor:pointer}
.checkbox-label input{width:17px;height:17px;margin-top:2px;accent-color:var(--red);flex:none}
.checkbox-label.error{color:#D6452E}
.checkbox-label.error input{outline:2px solid #D6452E;outline-offset:2px;border-radius:4px}
.form-message{margin-top:18px;font-size:14.5px;font-weight:600;min-height:1.4em}
.form-message--success{color:var(--red-deep)}
.form-message--error{color:#D6452E}

/* ---------- Footer ---------- */
.footer{background-color:var(--ink);color:rgba(250,250,247,.7);padding:0 0 32px}
.footer__inner{
  display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:48px;
  padding:56px 0;border-top:1px solid var(--line-inv);margin-bottom:8px;
}
.footer .logo{color:var(--paper);margin-bottom:16px}
.footer__brand p{font-size:14px;line-height:1.7}
.footer h4{font-family:var(--font-mono);font-size:10.5px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:rgba(250,250,247,.4);margin-bottom:20px}
.footer__links{display:grid;gap:12px;align-content:start}
.footer__links a,.footer__contact a{font-size:14.5px;transition:color var(--tr);display:flex;align-items:center;gap:10px;width:fit-content}
.footer__links a:hover,.footer__contact a:hover{color:var(--red)}
.footer__contact{display:grid;gap:14px;align-content:start}
.footer__bottom{
  border-top:1px solid var(--line-inv);padding-top:28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.5px;color:rgba(250,250,247,.4);
}

/* ---------- Фон: топографические круги ---------- */
body{position:relative}
.ds-bg{position:absolute;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.topo{position:absolute;will-change:transform}
.topo use{filter:url(#turb)}
.topo--1{width:2400px;top:-2%;right:-950px;color:rgba(226,35,26,.15);animation:wanderA 58s ease-in-out infinite}
.topo--2{width:2000px;top:12%;left:-1050px;color:rgba(22,24,29,.105);animation:wanderB 66s ease-in-out infinite}
.topo--3{width:2200px;top:30%;right:-1100px;color:rgba(22,24,29,.1);animation:wanderA 74s ease-in-out infinite reverse}
.topo--4{width:1900px;top:44%;left:-950px;color:rgba(226,35,26,.13);animation:wanderB 62s ease-in-out infinite reverse}
.topo--5{width:2300px;top:62%;right:-1050px;color:rgba(226,35,26,.12);animation:wanderA 70s ease-in-out infinite}
.topo--6{width:2000px;top:80%;left:-1000px;color:rgba(22,24,29,.1);animation:wanderB 78s ease-in-out infinite}
@keyframes wanderA{
  0%{transform:translate(0,0) rotate(0deg)}
  25%{transform:translate(-90px,70px) rotate(1.2deg)}
  50%{transform:translate(-34px,130px) rotate(-.6deg)}
  75%{transform:translate(64px,56px) rotate(-1.4deg)}
  100%{transform:translate(0,0) rotate(0deg)}
}
@keyframes wanderB{
  0%{transform:translate(0,0) rotate(0deg)}
  25%{transform:translate(80px,-62px) rotate(-1.1deg)}
  50%{transform:translate(120px,24px) rotate(.7deg)}
  75%{transform:translate(42px,94px) rotate(1.3deg)}
  100%{transform:translate(0,0) rotate(0deg)}
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(24px);
  transition:opacity .7s cubic-bezier(.22,.61,.36,1), transform .7s cubic-bezier(.22,.61,.36,1);
  transition-delay:var(--d,0ms);
  will-change:opacity,transform;
}
.reveal.in-view{opacity:1;transform:none}

:root{--live:#27B36A}

/* ---------- Адаптив ---------- */
@media (max-width:1000px){
  .hero__topo{width:100%;opacity:.35}
  .hero__stats{grid-template-columns:repeat(2,1fr)}
  .hero__stat{padding:24px}
  .hero__stat:nth-child(3){padding-left:24px}
  .method,.format{grid-template-columns:1fr}
  .pricing{grid-template-columns:1fr}
  .student,.student--flip{grid-template-columns:1fr;gap:44px}
  .student--flip > div{order:0}
  .student--flip .student__media{order:0;justify-self:start;box-shadow:-16px 16px 0 var(--red-soft)}
  .student + .student{margin-top:72px}
  .student__media{justify-self:start}
  .signup-grid{grid-template-columns:1fr;gap:56px}
  .footer__inner{grid-template-columns:1fr 1fr}
  .topo--3,.topo--5{display:none}
  .topo{filter:none}
}
@media (max-width:680px){
  .section{padding:80px 0}
  .hero{padding-top:calc(var(--header-h) + 56px)}
  .hero__stats{padding-bottom:80px}
  .fit{grid-template-columns:1fr}
  .fit__col + .fit__col{border-left:none;border-top:1px solid var(--line)}
  .fit__col{padding:32px 28px}
  .strand__node{padding-left:48px;padding-bottom:52px}
  .result{padding:32px 28px;grid-template-columns:1fr;gap:26px}
  .form{padding:32px 24px}
  .footer__inner{grid-template-columns:1fr}
  .hero__actions .btn{width:100%}
  .signup__days{margin-left:0}
  .topo--2{display:none}
  .topo--1{width:1300px;right:-720px}

  .nav{
    position:fixed;inset:var(--header-h) 0 0 0;
    background:var(--paper);
    flex-direction:column;justify-content:center;gap:32px;
    transform:translateX(100%);transition:transform .35s cubic-bezier(.25,.1,.25,1);
  }
  .nav--open{transform:translateX(0)}
  .nav__link{font-size:19px;color:var(--text);font-weight:600}
  .burger{display:flex}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1 !important;transform:none !important}
  .strand::before{transform:scaleY(1) !important}
  .strand__dot{scale:1 !important;opacity:1 !important}
  .result__bar{transform:scaleX(1) !important}
  .topo{filter:none !important}
}