/* Фундамент — служба спасения AI-проектов */
:root{
  --bg:#0a0b0d;
  --bg-2:#0f1114;
  --card:#14171b;
  --card-hi:#1a1e23;
  --line:#24282e;
  --line-hi:#333941;
  --tx:#e8eaed;
  --tx-2:#a8b0ba;
  --tx-3:#7b838e;
  --acc:#ff5a1f;
  --acc-2:#ffb03a;
  --ok:#4ade80;
  --radius:14px;
  --max:1120px;
  --mono:ui-monospace,"SF Mono",-apple-system,"Cascadia Mono",Roboto Mono,Menlo,Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","Inter",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);color:var(--tx);font-family:var(--sans);
  font-size:17px;line-height:1.62;letter-spacing:-.005em;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(900px 500px at 15% -10%, rgba(255,90,31,.10), transparent 65%),
    radial-gradient(700px 400px at 90% 0%, rgba(255,176,58,.05), transparent 60%);
}
main,header,footer{position:relative;z-index:1}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.14;letter-spacing:-.028em;font-weight:680}
h1{font-size:clamp(2rem,5.2vw,3.6rem)}
h2{font-size:clamp(1.6rem,3.4vw,2.5rem)}
h3{font-size:1.16rem;letter-spacing:-.015em;line-height:1.3}
p{color:var(--tx-2)}
strong{color:var(--tx);font-weight:640}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:50;
  background:rgba(10,11,13,.82);backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.site-head .wrap{display:flex;align-items:center;gap:28px;height:66px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.03em;font-size:1.06rem}
.logo .mark{
  width:26px;height:26px;border-radius:7px;flex:0 0 auto;
  background:linear-gradient(150deg,var(--acc),var(--acc-2));
  display:grid;place-items:center;font-size:.72rem;color:#0a0b0d;font-weight:800;
  box-shadow:0 0 0 1px rgba(255,90,31,.35),0 6px 18px -8px rgba(255,90,31,.9);
}
.nav{display:flex;gap:24px;margin-left:auto;font-size:.94rem}
.nav a{color:var(--tx-2);transition:color .16s}
.nav a:hover,.nav a[aria-current="page"]{color:var(--tx)}
.head-cta{margin-left:8px}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line-hi);color:var(--tx);
  border-radius:9px;width:40px;height:36px;font-size:1rem;cursor:pointer}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:11px;font-size:.95rem;font-weight:620;
  border:1px solid transparent;cursor:pointer;transition:transform .12s,background .16s,border-color .16s;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-acc{background:var(--acc);color:#fff;box-shadow:0 10px 26px -14px rgba(255,90,31,.9)}
.btn-acc:hover{background:#ff6f3c}
.btn-ghost{background:rgba(255,255,255,.03);border-color:var(--line-hi);color:var(--tx)}
.btn-ghost:hover{background:rgba(255,255,255,.07);border-color:#4a515a}
.btn-sm{padding:9px 16px;font-size:.88rem;border-radius:9px}

/* ---------- hero ---------- */
.hero{padding:76px 0 40px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:56px;align-items:center}
.risk{
  border:1px solid var(--line);border-radius:16px;background:#0c0e11;
  box-shadow:0 40px 80px -60px #000, inset 0 1px 0 rgba(255,255,255,.04);
  overflow:hidden;font-family:var(--mono);font-size:.82rem;
}
.risk .bar{
  display:flex;align-items:center;gap:7px;padding:11px 14px;
  background:#111418;border-bottom:1px solid var(--line);
}
.risk .bar i{width:9px;height:9px;border-radius:50%;background:#333941;display:block}
.risk .bar span{margin-left:auto;color:var(--tx-3);font-size:.72rem;letter-spacing:.06em}
.risk .body{padding:6px 0 0}
.risk .row{display:flex;align-items:center;gap:10px;padding:11px 16px;border-bottom:1px solid rgba(36,40,46,.6)}
.risk .row:last-of-type{border-bottom:none}
.risk .row .nm{color:var(--tx-2);flex:1}
.risk .bad,.risk .good{font-size:.72rem;letter-spacing:.03em;padding:3px 7px;border-radius:5px}
.risk .bad{background:rgba(255,90,31,.14);color:#ff9a75;border:1px solid rgba(255,90,31,.28)}
.risk .good{background:rgba(74,222,128,.12);color:#7ee2a3;border:1px solid rgba(74,222,128,.25)}
.risk .verdict{
  margin-top:8px;padding:14px 16px;border-top:1px solid var(--line);
  background:rgba(255,90,31,.05);color:#ffb69c;font-size:.78rem;letter-spacing:.03em;
}

.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--acc-2);border:1px solid rgba(255,176,58,.28);
  background:rgba(255,176,58,.06);padding:7px 13px;border-radius:100px;margin-bottom:26px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--acc);box-shadow:0 0 0 3px rgba(255,90,31,.18)}
.hero h1{max-width:24ch}
.hero h1 em{font-style:normal;color:var(--acc);position:relative;white-space:nowrap}
.hero .lead{font-size:clamp(1.02rem,1.7vw,1.2rem);max-width:60ch;margin-top:22px;color:var(--tx-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:30px;
  font-family:var(--mono);font-size:.78rem;color:var(--tx-3);letter-spacing:.02em;
}
.hero-meta span{display:flex;align-items:center;gap:7px}
.hero-meta i{color:var(--ok);font-style:normal}

/* ---------- section shell ---------- */
section{padding:64px 0}
.sec-head{max-width:62ch;margin-bottom:38px}
.sec-tag{font-family:var(--mono);font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--tx-3);margin-bottom:14px}
.sec-head p{margin-top:14px}

/* ---------- symptom cards ---------- */
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.sym{
  background:linear-gradient(180deg,var(--card),#101317);
  border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  position:relative;overflow:hidden;transition:border-color .18s,transform .18s;
}
.sym:hover{border-color:var(--line-hi);transform:translateY(-2px)}
.sym::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--acc),transparent);
}
.sym .q{font-family:var(--mono);font-size:.74rem;color:var(--acc);letter-spacing:.04em;margin-bottom:12px}
.sym h3{margin-bottom:10px}
.sym p{font-size:.94rem}
.sym .why{
  margin-top:14px;padding-top:13px;border-top:1px dashed var(--line-hi);
  font-size:.86rem;color:var(--tx-3);
}
.sym .why b{color:#ff8a63;font-weight:620}

/* ---------- product cards ---------- */
.prod{
  background:var(--card);border:1px solid var(--line);border-radius:16px;
  padding:28px;display:flex;flex-direction:column;gap:14px;
}
.prod.feature{
  border-color:rgba(255,90,31,.45);background:
    linear-gradient(180deg,rgba(255,90,31,.09),rgba(255,90,31,.015) 55%,transparent),
    var(--card);
  box-shadow:0 24px 60px -40px rgba(255,90,31,.8);
}
.prod .badge{
  align-self:flex-start;font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;
  text-transform:uppercase;padding:5px 10px;border-radius:6px;
  background:rgba(255,90,31,.16);color:#ffb69c;border:1px solid rgba(255,90,31,.3);
}
.prod .badge.alt{background:rgba(255,255,255,.05);color:var(--tx-2);border-color:var(--line-hi)}
.prod p{font-size:.95rem}
.prod ul{list-style:none;display:flex;flex-direction:column;gap:9px;margin-top:2px}
.prod li{
  font-size:.93rem;color:var(--tx-2);padding-left:22px;position:relative;
}
.prod li::before{
  content:"";position:absolute;left:0;top:.55em;width:11px;height:11px;
  background:none;border-left:1.6px solid var(--ok);border-bottom:1.6px solid var(--ok);
  transform:rotate(-45deg);transform-origin:left center;
}
.prod .foot{margin-top:auto;padding-top:18px;display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;
  font-family:var(--mono);font-size:.76rem;color:var(--tx-3)}

/* ---------- steps ---------- */
.steps{counter-reset:s;display:grid;gap:0;border-top:1px solid var(--line)}
.step{
  counter-increment:s;display:grid;grid-template-columns:64px 1fr;gap:20px;
  padding:26px 0;border-bottom:1px solid var(--line);
}
.step::before{
  content:"0" counter(s);font-family:var(--mono);font-size:.9rem;color:var(--acc);
  letter-spacing:.06em;padding-top:4px;
}
.step h3{margin-bottom:7px}
.step p{font-size:.95rem;max-width:74ch}

/* ---------- checklist ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 30px}
.check{display:flex;gap:12px;align-items:flex-start;font-size:.95rem;color:var(--tx-2)}
.check svg{flex:0 0 18px;margin-top:3px;color:var(--ok)}

/* ---------- case strip ---------- */
.case{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:var(--card);
}
.case .ctop{padding:22px 24px 18px;border-bottom:1px solid var(--line)}
.case .tagline{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--acc-2);margin-bottom:10px}
.case .body{display:grid;grid-template-columns:1fr 1fr}
.case .body>div{padding:18px 24px}
.case .body>div:first-child{border-right:1px solid var(--line)}
.case .lbl{font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--tx-3);margin-bottom:8px}
.case .body p{font-size:.92rem}

/* ---------- quotes / article cards ---------- */
.art{
  display:flex;flex-direction:column;gap:10px;padding:24px;
  border:1px solid var(--line);border-radius:var(--radius);background:var(--card);
  transition:border-color .18s,transform .18s;
}
.art:hover{border-color:var(--line-hi);transform:translateY(-2px)}
.art .k{font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--tx-3)}
.art h3{font-size:1.05rem}
.art p{font-size:.9rem}
.art .more{margin-top:auto;padding-top:8px;font-size:.86rem;color:var(--acc)}

/* ---------- CTA band ---------- */
.band{
  border:1px solid rgba(255,90,31,.3);border-radius:20px;
  background:
    radial-gradient(600px 220px at 12% 0%, rgba(255,90,31,.16), transparent 70%),
    linear-gradient(180deg,#15181c,#0d0f12);
  padding:44px;display:grid;grid-template-columns:1.4fr .9fr;gap:32px;align-items:center;
}
.band h2{margin-bottom:12px}
.band .acts{display:flex;flex-direction:column;gap:10px}
.band small{font-family:var(--mono);font-size:.74rem;color:var(--tx-3);letter-spacing:.02em;text-align:center}

/* ---------- contact form ---------- */
.form{display:grid;gap:14px;max-width:560px}
.field{display:grid;gap:7px}
.field label{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--tx-3)}
.field input,.field textarea,.field select{
  background:#0c0e11;border:1px solid var(--line-hi);border-radius:10px;
  padding:13px 15px;color:var(--tx);font-family:var(--sans);font-size:.96rem;
  transition:border-color .16s,box-shadow .16s;width:100%;
}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--acc);box-shadow:0 0 0 3px rgba(255,90,31,.14);
}
.field textarea{min-height:120px;resize:vertical}
.form .hint{font-size:.8rem;color:var(--tx-3);font-family:var(--mono)}

/* ---------- article page ---------- */
.post{max-width:760px;margin:0 auto;padding:56px 0 40px}
.post .kicker{font-family:var(--mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--acc-2);margin-bottom:18px}
.post h1{font-size:clamp(1.7rem,4vw,2.7rem);margin-bottom:20px}
.post .meta{font-family:var(--mono);font-size:.76rem;color:var(--tx-3);margin-bottom:34px;
  padding-bottom:22px;border-bottom:1px solid var(--line)}
.post h2{font-size:1.5rem;margin:40px 0 14px}
.post h3{font-size:1.1rem;margin:28px 0 10px}
.post p{margin-bottom:16px;font-size:1.02rem;color:var(--tx-2)}
.post ul,.post ol{margin:0 0 18px 22px;color:var(--tx-2)}
.post li{margin-bottom:9px}
.post blockquote{
  border-left:2px solid var(--acc);padding:2px 0 2px 20px;margin:24px 0;
  color:var(--tx);font-size:1.02rem;
}
.post .callout{
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:20px 22px;margin:26px 0;
}
.post .callout .t{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--acc);margin-bottom:10px}
.post .callout p:last-child{margin-bottom:0}
.post code{font-family:var(--mono);font-size:.88em;background:rgba(255,255,255,.06);padding:2px 6px;border-radius:5px;color:#ffcbb8}
.post pre{background:#0b0d10;border:1px solid var(--line);border-radius:10px;padding:16px;overflow-x:auto;margin:0 0 20px}
.post pre code{background:none;padding:0;color:var(--tx-2);font-size:.86rem;line-height:1.6}
.post .endcta{margin-top:44px;padding:26px;border:1px solid rgba(255,90,31,.35);border-radius:14px;
  background:linear-gradient(180deg,rgba(255,90,31,.08),transparent)}
.post .endcta p{margin-bottom:16px}

/* ---------- footer ---------- */
.site-foot{border-top:1px solid var(--line);padding:44px 0 34px;margin-top:30px}
.site-foot .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:32px}
.site-foot h4{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--tx-3);margin-bottom:14px;font-weight:500}
.site-foot a{color:var(--tx-2);font-size:.92rem;display:block;margin-bottom:9px}
.site-foot a:hover{color:var(--tx)}
.site-foot p{font-size:.9rem;max-width:38ch}
.copy{margin-top:34px;padding-top:20px;border-top:1px solid var(--line);
  font-family:var(--mono);font-size:.74rem;color:var(--tx-3);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between}

/* ---------- misc ---------- */
.pill{display:inline-block;font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;
  border:1px solid var(--line-hi);border-radius:100px;padding:5px 12px;color:var(--tx-2);margin:0 6px 6px 0}
.divider{height:1px;background:var(--line);margin:8px 0 0}
.note{font-size:.86rem;color:var(--tx-3);font-family:var(--mono);margin-top:16px}
.person{display:grid;grid-template-columns:200px 1fr;gap:32px;align-items:start}
.avatar{
  width:200px;height:200px;border-radius:18px;border:1px solid var(--line-hi);
  background:linear-gradient(150deg,#1b1f24,#0d0f12);
  display:grid;place-items:center;font-family:var(--mono);font-size:2.4rem;color:var(--acc);
}

@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .risk{max-width:520px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:1fr}
  .band{grid-template-columns:1fr;padding:32px}
  .site-foot .cols{grid-template-columns:1fr 1fr}
  .person{grid-template-columns:1fr}
  .avatar{width:120px;height:120px;font-size:1.6rem}
  .nav{display:none}
  .nav.open{display:flex;position:absolute;top:66px;left:0;right:0;flex-direction:column;
    background:#0d0f12;border-bottom:1px solid var(--line);padding:16px 24px;gap:14px}
  .burger{display:block}
  .head-cta{display:none}
}
@media (max-width:680px){
  body{font-size:16px}
  .grid-2,.grid-4,.check-grid{grid-template-columns:1fr}
  .case .body{grid-template-columns:1fr}
  .case .body>div:first-child{border-right:none;border-bottom:1px solid var(--line)}
  .hero{padding:48px 0 28px}
  section{padding:48px 0}
  .step{grid-template-columns:44px 1fr;gap:12px}
  .band{padding:26px}
  .site-foot .cols{grid-template-columns:1fr}
  .hero h1 em{white-space:normal}
}