/* ── База ─────────────────────────────────────────────── */
:root{
  --ink:#f2f2f2;
  --ink-dim:rgba(242,242,242,.62);
  --ink-faint:rgba(242,242,242,.34);
  --line:rgba(242,242,242,.16);
  --pad:clamp(18px,3.4vw,44px);
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:#303030;
  color:var(--ink);
  font-family:var(--mono);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
img,svg{display:block}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ── Сцена ────────────────────────────────────────────── */
#scene{position:fixed;inset:0;width:100%;height:100%;z-index:0}
.grain{
  position:fixed;inset:-2px;z-index:1;pointer-events:none;
  background:repeating-linear-gradient(180deg,rgba(0,0,0,.05) 0 1px,transparent 1px 3px);
  mix-blend-mode:overlay;opacity:.5;
}

/* ── Хром інтерфейсу ──────────────────────────────────── */
.chrome{
  position:fixed;left:0;right:0;z-index:5;
  display:flex;align-items:center;justify-content:space-between;
  padding:var(--pad);pointer-events:none;
}
.chrome-top{top:0}
.chrome-bottom{bottom:0}
.chrome > *,.chrome-right{pointer-events:auto}
.chrome-right{display:flex;gap:clamp(16px,2.6vw,34px);align-items:center}

/* вибір мови */
.lang-wrap{position:relative;display:inline-block}
.lang-list{
  position:absolute;right:0;bottom:calc(100% + 16px);z-index:10;
  list-style:none;margin:0;padding:6px 0;min-width:168px;
  background:rgba(22,22,22,.86);border:1px solid var(--line);
  backdrop-filter:blur(12px) saturate(0);-webkit-backdrop-filter:blur(12px) saturate(0);
  animation:fade .22s ease both;
}
.lang-list[hidden]{display:none}
.lang-list li{margin:0}
.lang-list a{
  display:flex;width:100%;gap:12px;align-items:baseline;
  color:var(--ink);text-decoration:none;font:inherit;
  font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  padding:9px 16px;
  transition:background .2s,opacity .2s;opacity:.72;
}
.lang-list a:hover,.lang-list a:focus-visible{background:rgba(255,255,255,.07);opacity:1;outline:none}
.lang-list a[aria-current="page"]{opacity:1}
.lang-list a[aria-current="page"]::after{content:"·";margin-left:auto}
.lang-list .lname{letter-spacing:.08em;text-transform:none;opacity:.55}

.brand{display:block;color:inherit;text-decoration:none}
.mark{width:clamp(22px,2.2vw,30px);height:auto;fill:var(--ink);
  filter:drop-shadow(0 0 14px rgba(255,255,255,.35));transition:transform .5s ease}
.brand:hover .mark{transform:rotate(8deg) scale(1.06)}

.link-btn,.sig{
  background:none;border:0;color:var(--ink);
  font:inherit;font-size:clamp(11px,1.05vw,13px);
  letter-spacing:.22em;text-transform:uppercase;
  cursor:pointer;padding:0;
  text-shadow:0 0 12px rgba(0,0,0,.55);
}
.sig{cursor:default}
.link-btn{position:relative;transition:opacity .25s}
.link-btn::after{
  content:"";position:absolute;left:0;right:0;bottom:-5px;height:1px;
  background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .35s ease;
}
.link-btn:hover::after,.link-btn:focus-visible::after{transform:scaleX(1)}
#gain[aria-pressed="false"]{opacity:.45}

/* ── Меню ─────────────────────────────────────────────── */
.menu{
  position:fixed;inset:0;z-index:20;
  display:flex;flex-direction:column;justify-content:center;
  padding:var(--pad);
  background:rgba(24,24,24,.82);
  backdrop-filter:blur(14px) saturate(0);
  -webkit-backdrop-filter:blur(14px) saturate(0);
  animation:fade .35s ease both;
}
.menu[hidden]{display:none}
@keyframes fade{from{opacity:0}to{opacity:1}}
.menu-close{position:absolute;top:var(--pad);right:var(--pad)}
.menu nav{display:flex;flex-direction:column;gap:clamp(6px,1.4vw,14px)}
.menu nav a{
  color:var(--ink);text-decoration:none;
  font-size:clamp(30px,7vw,84px);line-height:1.05;
  letter-spacing:-.02em;text-transform:uppercase;
  display:flex;align-items:baseline;gap:clamp(10px,1.6vw,22px);
  opacity:.72;transition:opacity .3s,transform .4s cubic-bezier(.2,.7,.2,1);
}
.menu nav a::before{
  content:attr(data-i);font-size:clamp(10px,1vw,13px);
  letter-spacing:.2em;opacity:.5;
}
.menu nav a:hover{opacity:1;transform:translateX(clamp(6px,1vw,16px))}
.menu-foot{
  position:absolute;left:var(--pad);bottom:var(--pad);
  font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-faint);
}

/* ── Контент ──────────────────────────────────────────── */
main{position:relative;z-index:3;text-shadow:0 1px 18px rgba(20,20,20,.75),0 0 4px rgba(20,20,20,.45)}
.wrap{width:min(1180px,100%);margin:0 auto;padding:0 var(--pad)}

.hero{
  min-height:100svh;display:flex;align-items:flex-end;
  padding-bottom:clamp(96px,16vh,190px);
}
.hero h1{
  font-size:clamp(44px,9vw,132px);font-weight:400;line-height:.95;
  letter-spacing:.02em;
  text-shadow:0 0 40px rgba(0,0,0,.5);
}
.hero .lead{
  margin-top:clamp(16px,2vw,26px);max-width:46ch;
  font-size:clamp(13px,1.35vw,17px);color:var(--ink-dim);
  text-shadow:0 0 20px rgba(0,0,0,.6);
}
.cta{
  display:inline-flex;align-items:center;gap:12px;margin-top:clamp(26px,4vw,44px);
  color:var(--ink);text-decoration:none;
  font-size:clamp(11px,1.05vw,13px);letter-spacing:.22em;text-transform:uppercase;
}
.cta span{
  width:34px;height:1px;background:currentColor;display:block;
  transition:width .35s ease;
}
.cta:hover span{width:56px}

.panel{padding:clamp(90px,16vh,180px) 0}
.panel .wrap{max-width:900px}
.idx{
  font-size:11px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--ink-faint);margin-bottom:clamp(18px,2.4vw,30px);
  padding-bottom:12px;border-bottom:1px solid var(--line);
}
.panel h2{
  font-size:clamp(24px,3.6vw,46px);font-weight:400;line-height:1.12;
  letter-spacing:-.02em;text-wrap:balance;
}
.body{margin-top:clamp(14px,1.8vw,22px);max-width:56ch;color:var(--ink-dim);
  font-size:clamp(13px,1.25vw,16px)}

.caps{list-style:none;margin-top:clamp(20px,2.6vw,30px);display:grid;gap:10px}
.caps li{position:relative;padding-left:22px}
.caps h3{
  font-weight:400;color:var(--ink-dim);
  font-size:11px;letter-spacing:.16em;text-transform:uppercase;line-height:1.5;
}
.caps li::before{content:"";position:absolute;left:0;top:.85em;width:12px;height:1px;background:var(--ink-dim);opacity:.6}
@media (min-width:640px){.caps{grid-template-columns:repeat(2,1fr);gap:clamp(12px,1.8vw,20px) clamp(20px,3vw,40px)}}
@media (min-width:1000px){.caps{grid-template-columns:repeat(3,1fr)}}

.steps{list-style:none;margin-top:clamp(28px,4vw,46px);border-top:1px solid var(--line)}
.steps li{
  display:grid;grid-template-columns:minmax(140px,22%) 1fr;gap:clamp(14px,3vw,40px);
  padding:clamp(18px,2.4vw,26px) 0;border-bottom:1px solid var(--line);
}
.steps h3{font-weight:400;font-size:clamp(13px,1.15vw,15px);letter-spacing:.12em;text-transform:uppercase;line-height:1.4}
.steps li > p{color:var(--ink-dim);font-size:clamp(13px,1.2vw,15px)}

.metrics{margin-top:clamp(26px,4vw,44px);display:grid;gap:clamp(22px,4vw,40px);
  grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}
.metrics b{display:block;font-weight:400;font-size:clamp(30px,4.4vw,58px);letter-spacing:-.03em}
.metrics span{display:block;margin-top:8px;font-size:11px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--ink-faint)}

.form{margin-top:clamp(24px,3.4vw,38px);display:flex;flex-wrap:wrap;gap:12px;max-width:560px}
.form input{
  flex:1 1 240px;background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--ink);font:inherit;font-size:14px;padding:14px 16px;border-radius:0;
  transition:border-color .3s,background .3s;
}
.form input::placeholder{color:var(--ink-faint)}
.form input:focus{outline:none;border-color:rgba(242,242,242,.5);background:rgba(255,255,255,.08)}
.form button{
  background:var(--ink);border:1px solid var(--ink);color:#1c1c1c;
  font:inherit;font-size:11px;letter-spacing:.22em;text-transform:uppercase;
  padding:14px 26px;cursor:pointer;transition:opacity .25s;
}
.form button:hover{opacity:.82}
.form-msg{margin-top:14px;font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--ink-faint);min-height:1em}

/* поява при скролі */
.reveal{opacity:0;transform:translateY(18px)}
.reveal.in{opacity:1;transform:none;transition:opacity .9s ease,transform .9s cubic-bezier(.2,.7,.2,1)}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}

@media (max-width:640px){
  .steps li{grid-template-columns:1fr;gap:6px}
  .menu nav a::before{display:none}
}