/* =========================================================
   Обучение сотрудников работе с ИИ — лендинг
   Палитра: тёмно-синий (бренд) + янтарный акцент под действия
   ========================================================= */
:root{
  --bg:#F4F7FB;
  --surface:#FFFFFF;
  --tint:#EDF2F9;
  --ink:#0F2A47;
  --ink-2:#33465E;
  --muted:#647689;
  --primary:#1E4E7A;
  --primary-d:#163A5C;
  --accent:#FFB020;
  --accent-d:#E8971A;
  --navy:#0E2440;
  --line:#E2E9F1;
  --ok:#1F9D6B;
  --err:#D64545;

  --radius:16px;
  --radius-sm:10px;
  --shadow:0 12px 30px -12px rgba(15,42,71,.18);
  --shadow-lg:0 30px 60px -20px rgba(15,42,71,.30);
  --container:1120px;
  --ff:"Manrope",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  --ff-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--ff);
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

/* ---------- layout helpers ---------- */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.container--narrow{max-width:760px}
.section{padding:88px 0}
.section--tint{background:var(--tint)}
.section__head{max-width:720px;margin:0 auto 44px;text-align:center}

.eyebrow{
  font-size:.82rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--primary);margin:0 0 14px
}
.h2{font-size:clamp(1.7rem,3.4vw,2.5rem);line-height:1.15;font-weight:800;letter-spacing:-.02em;margin:0 0 14px}
.h2--light{color:#fff}
.lead{font-size:1.12rem;color:var(--muted);margin:0}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  font-family:inherit;font-weight:700;font-size:1rem;line-height:1;
  padding:15px 26px;border-radius:12px;border:1.5px solid transparent;
  cursor:pointer;transition:transform .15s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--accent);color:var(--ink);box-shadow:0 10px 22px -10px rgba(232,151,26,.7)}
.btn--primary:hover{background:var(--accent-d);transform:translateY(-2px)}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn--block{width:100%}
.btn--sm{padding:11px 18px;font-size:.92rem}
.btn--lg{padding:17px 28px;font-size:1.05rem}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.86);backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header__inner{display:flex;align-items:center;gap:24px;height:70px}
.brand{display:flex;align-items:center;gap:12px;margin-right:auto}
.brand__mark{
  width:40px;height:40px;flex:none;border-radius:11px;
  background:linear-gradient(140deg,var(--primary),var(--navy));
  color:#fff;font-weight:800;font-size:.95rem;letter-spacing:.02em;
  display:grid;place-items:center;
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__text strong{font-size:1rem;font-weight:800}
.brand__text small{font-size:.78rem;color:var(--muted)}
.site-nav{display:flex;gap:26px}
.site-nav a{font-size:.95rem;font-weight:600;color:var(--ink-2)}
.site-nav a:hover{color:var(--primary)}

/* ---------- hero ---------- */
.hero{padding:64px 0 76px;background:
  radial-gradient(1100px 500px at 80% -10%,rgba(30,78,122,.10),transparent 60%),
  var(--bg);
}
.hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero__title{font-size:clamp(2.1rem,4.6vw,3.4rem);line-height:1.08;font-weight:800;letter-spacing:-.03em;margin:0 0 20px}
.hero__lead{font-size:1.18rem;color:var(--ink-2);margin:0 0 30px;max-width:32em}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero__trust{list-style:none;display:flex;flex-wrap:wrap;gap:10px 20px;margin:0;padding:0}
.hero__trust li{position:relative;padding-left:24px;font-size:.95rem;color:var(--ink-2);font-weight:600}
.hero__trust li::before{content:"";position:absolute;left:0;top:.5em;width:13px;height:13px;border-radius:50%;
  background:radial-gradient(circle at 50% 50%,var(--accent) 0 42%,transparent 46%),var(--primary);
  box-shadow:0 0 0 3px rgba(30,78,122,.12)}

/* signature: prompt card */
.hero__demo{position:relative}
.promptcard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-lg);overflow:hidden;
}
.promptcard__bar{
  display:flex;align-items:center;gap:8px;padding:14px 16px;
  background:linear-gradient(180deg,#fff,#f6f9fc);border-bottom:1px solid var(--line);
}
.promptcard__bar .dot{width:11px;height:11px;border-radius:50%;background:#dce4ee}
.promptcard__bar .dot:nth-child(1){background:#ff6058}
.promptcard__bar .dot:nth-child(2){background:#ffbd2e}
.promptcard__bar .dot:nth-child(3){background:#28c840}
.promptcard__bar em{margin-left:auto;font-style:normal;font-family:var(--ff-mono);font-size:.78rem;color:var(--muted)}
.promptcard__body{padding:22px}
.promptcard__prompt{
  font-family:var(--ff-mono);font-size:.95rem;line-height:1.5;color:var(--ink);
  background:var(--tint);border:1px solid var(--line);border-radius:12px;
  padding:14px 16px;margin:0 0 18px;position:relative;
}
.caret{display:inline-block;width:9px;height:1.05em;vertical-align:-2px;margin-left:3px;background:var(--accent);animation:blink 1.1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.promptcard__result-head{font-size:.8rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ok);margin-bottom:12px}
.checks{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.checks li{position:relative;padding-left:30px;font-weight:600;color:var(--ink-2)}
.checks li::before{
  content:"";position:absolute;left:0;top:1px;width:20px;height:20px;border-radius:6px;
  background:rgba(31,157,107,.12);
}
.checks li::after{content:"";position:absolute;left:7px;top:5px;width:5px;height:9px;border:2px solid var(--ok);border-top:0;border-left:0;transform:rotate(45deg)}
.promptcard__foot{padding:0}
.hero__demo-note{
  margin-top:16px;text-align:center;font-weight:700;color:var(--primary);
  font-size:.98rem;
}

/* ---------- trust bar ---------- */
.trustbar{background:var(--navy);color:#cdd8e6}
.trustbar__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:14px 22px;padding:18px 24px;font-weight:600;font-size:.95rem}
.trustbar .sep{width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:.8}

/* ---------- value ---------- */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.value-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;box-shadow:var(--shadow)}
.value-card__icon{font-size:1.7rem;width:54px;height:54px;border-radius:14px;background:var(--tint);display:grid;place-items:center;margin-bottom:16px}
.value-card h3{margin:0 0 8px;font-size:1.22rem;font-weight:800}
.value-card p{margin:0;color:var(--muted)}

/* ---------- learn ---------- */
.learn-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.learn-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;position:relative;transition:transform .18s ease,box-shadow .2s ease}
.learn-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.learn-card__no{font-family:var(--ff-mono);font-size:.85rem;font-weight:600;color:var(--accent-d);letter-spacing:.05em}
.learn-card h3{margin:10px 0 8px;font-size:1.18rem;font-weight:800}
.learn-card p{margin:0;color:var(--muted);font-size:.98rem}

/* ---------- steps ---------- */
.steps{list-style:none;counter-reset:s;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px 22px}
.step__no{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  font-weight:800;font-size:1.15rem;color:#fff;margin-bottom:16px;
  background:linear-gradient(140deg,var(--primary),var(--navy));
}
.step__body h3{margin:0 0 6px;font-size:1.12rem;font-weight:800}
.step__body p{margin:0;color:var(--muted);font-size:.96rem}

/* ---------- pricing ---------- */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.price-card{position:relative;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;box-shadow:var(--shadow)}
.price-card--featured{border-color:var(--primary);box-shadow:var(--shadow-lg);transform:translateY(-6px)}
.price-card__tag{position:absolute;top:-13px;left:28px;background:var(--accent);color:var(--ink);font-weight:800;font-size:.78rem;letter-spacing:.04em;padding:6px 14px;border-radius:999px}
.price-card h3{margin:0 0 6px;font-size:1.28rem;font-weight:800}
.price-card__meta{margin:0 0 18px;color:var(--muted);font-size:.95rem}
.price-card__price{font-size:2rem;font-weight:800;letter-spacing:-.02em;margin-bottom:20px}
.price-card__price span{font-size:.95rem;font-weight:600;color:var(--muted)}
.price-card__price--soft{font-size:1.5rem;color:var(--primary)}
.ticks{list-style:none;margin:0 0 26px;padding:0;display:grid;gap:11px;flex:1}
.ticks li{position:relative;padding-left:28px;color:var(--ink-2);font-size:.98rem}
.ticks li::before{content:"";position:absolute;left:0;top:2px;width:18px;height:18px;border-radius:50%;background:rgba(30,78,122,.10)}
.ticks li::after{content:"";position:absolute;left:6px;top:6px;width:4px;height:8px;border:2px solid var(--primary);border-top:0;border-left:0;transform:rotate(45deg)}
.pricing-note{text-align:center;color:var(--muted);font-size:.95rem;margin:28px 0 0}

/* ---------- about ---------- */
.about__card{display:grid;grid-template-columns:auto 1fr;gap:34px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:38px;box-shadow:var(--shadow)}
.about__avatar{
  width:130px;height:130px;border-radius:24px;flex:none;
  background:linear-gradient(150deg,var(--primary),var(--navy));
  color:#fff;font-size:2.4rem;font-weight:800;display:grid;place-items:center;
  box-shadow:var(--shadow);
}
.about__body h2{margin:6px 0 4px}
.about__role{font-weight:700;color:var(--primary);margin:0 0 12px}
.about__body p:last-child{margin:0;color:var(--ink-2)}

/* ---------- faq ---------- */
.faq{display:grid;gap:12px}
.faq__item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden}
.faq__item summary{
  list-style:none;cursor:pointer;padding:20px 54px 20px 22px;position:relative;
  font-weight:700;font-size:1.05rem;
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{
  content:"";position:absolute;right:22px;top:50%;width:11px;height:11px;
  border-right:2.5px solid var(--primary);border-bottom:2.5px solid var(--primary);
  transform:translateY(-70%) rotate(45deg);transition:transform .2s ease;
}
.faq__item[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq__answer{padding:0 22px 20px;color:var(--muted)}

/* ---------- lead form ---------- */
.lead{
  padding:88px 0;
  background:radial-gradient(900px 400px at 15% 0%,rgba(30,78,122,.55),transparent 60%),
    linear-gradient(160deg,var(--navy),#0a1c33);
}
.lead__head{text-align:center;max-width:640px;margin:0 auto 34px}
.lead__sub{color:#b7c5d8;font-size:1.08rem;margin:0}
.lead-form{background:var(--surface);border-radius:20px;padding:34px;box-shadow:var(--shadow-lg)}
.field{margin-bottom:16px;display:flex;flex-direction:column}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field label{font-weight:700;font-size:.92rem;margin-bottom:7px}
.field input,.field select,.field textarea{
  font-family:inherit;font-size:1rem;color:var(--ink);
  padding:13px 14px;border:1.5px solid var(--line);border-radius:11px;background:#fbfcfe;
  transition:border-color .15s ease,box-shadow .15s ease;width:100%;
}
.field textarea{resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(30,78,122,.12);background:#fff;
}
.field input.is-invalid,.field select.is-invalid{border-color:var(--err);box-shadow:0 0 0 4px rgba(214,69,69,.10)}
.field__error{color:var(--err);font-size:.85rem;font-weight:600;margin-top:6px;min-height:0}
.field__error--contact{display:block;margin:-8px 0 12px}
.consent{display:flex;gap:11px;align-items:flex-start;font-size:.92rem;color:var(--ink-2);margin:6px 0 4px;cursor:pointer}
.consent input{margin-top:3px;width:18px;height:18px;flex:none;accent-color:var(--primary)}
.consent a{color:var(--primary);text-decoration:underline}
.req{color:var(--err)}
.lead-form__status{margin:16px 0 0;text-align:center;font-weight:700;min-height:1.2em}
.lead-form__status.is-ok{color:var(--ok)}
.lead-form__status.is-err{color:var(--err)}
.lead-form.is-done .field,.lead-form.is-done .field-row,.lead-form.is-done .consent,.lead-form.is-done #submitBtn,.lead-form.is-done .field__error{display:none}

/* honeypot */
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* ---------- footer ---------- */
.site-footer{background:var(--navy);color:#c6d2e2;padding:44px 0 28px}
.site-footer__inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:24px;align-items:center;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.1)}
.site-footer__brand{display:flex;align-items:center;gap:14px}
.site-footer__brand strong{color:#fff;font-size:1.05rem}
.site-footer__brand p{margin:2px 0 0;font-size:.9rem;color:#95a6bd}
.site-footer__contacts{display:flex;flex-wrap:wrap;gap:10px 22px}
.site-footer__contacts a{font-weight:600;color:#dbe4f0}
.site-footer__contacts a:hover{color:var(--accent)}
.site-footer__legal{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-top:22px;font-size:.86rem;color:#8598b1}
.site-footer__legal a:hover{color:#fff}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .hero__grid{grid-template-columns:1fr;gap:40px}
  .hero__demo{order:-1;max-width:460px}
  .value-grid,.learn-grid,.steps,.pricing-grid{grid-template-columns:1fr 1fr}
  .price-card--featured{transform:none}
}
@media (max-width:760px){
  .site-nav{display:none}
  .section{padding:64px 0}
  .lead{padding:64px 0}
  .value-grid,.learn-grid,.steps,.pricing-grid{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .about__card{grid-template-columns:1fr;text-align:center;padding:30px 24px}
  .about__avatar{margin:0 auto}
  .lead-form{padding:24px}
  .hero{padding:44px 0 56px}
}

/* ---------- accessibility ---------- */
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}