/* ========== Ziraq AI — landing ==========
   Тёмная база брендбука + механика/раскладка Steep
   ========================================= */

:root{
  /* брендбук */
  --ink:#0E1330; --paper:#F6F8FE; --violet:#6D5DF5; --cyan:#1FC8E6;
  --bg:#0A0D22; --panel:#13162F; --line:rgba(255,255,255,.09); --muted:#A6AED0;
  --grad:linear-gradient(135deg,var(--violet),var(--cyan));
  /* Space Grotesk = латиница (фирменный), Manrope = кириллица (нет в SG), Inter = fallback */
  --head:'Space Grotesk','Manrope','Inter',system-ui,sans-serif;
  /* токены Steep */
  --maxw:1200px; --pad:24px; --section:96px;
  --r:24px; --r-sm:16px; --r-pill:9999px;
  --card:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.015));
  --elev:0 1px 0 rgba(255,255,255,.04) inset, 0 20px 40px -18px rgba(0,0,0,.65), 0 8px 16px -10px rgba(0,0,0,.5);
  --elev-hov:0 1px 0 rgba(255,255,255,.07) inset, 0 30px 60px -20px rgba(0,0,0,.7), 0 0 0 1px rgba(109,93,245,.25), 0 12px 50px -12px rgba(109,93,245,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0}
body{
  background:var(--bg);
  color:var(--paper);
  font-family:'Inter',system-ui,Segoe UI,sans-serif;
  font-weight:400; line-height:1.6; letter-spacing:-.009em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
svg{display:block}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}

/* фоновое свечение (fixed, как hero-glow Steep, но фирменное) */
.bg-glow{
  position:fixed; inset:0; z-index:-1; pointer-events:none;
  background:
    radial-gradient(1100px 560px at 50% -10%, rgba(109,93,245,.22), transparent 60%),
    radial-gradient(820px 420px at 88% 4%, rgba(31,200,230,.12), transparent 55%),
    radial-gradient(700px 700px at 10% 100%, rgba(109,93,245,.08), transparent 60%);
}

.grad{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}

.eyebrow{
  font-size:12px;letter-spacing:.28em;text-transform:uppercase;
  color:var(--cyan);font-weight:600;margin:0 0 16px;
}

/* ===== Кнопки ===== */
.btn{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  font-family:'Inter',sans-serif;font-weight:500;font-size:15px;
  padding:11px 22px;border-radius:var(--r-pill);border:1px solid transparent;
  cursor:pointer;transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s,border-color .25s;
  white-space:nowrap;
}
.btn--fill{
  background:var(--grad);color:#0A0D22;font-weight:600;
  box-shadow:0 10px 30px -10px rgba(109,93,245,.55);
}
.btn--fill:hover{transform:translateY(-2px);box-shadow:0 16px 40px -10px rgba(31,200,230,.55)}
.btn--lg{padding:15px 32px;font-size:17px}
.btn--text{background:transparent;color:var(--paper);padding-left:6px;padding-right:6px}
.btn--text:hover{color:var(--cyan)}
.btn--ghost{
  background:rgba(255,255,255,.03);border-color:var(--line);color:var(--paper);
}
.btn--ghost:hover{border-color:rgba(31,200,230,.55);background:rgba(31,200,230,.08);transform:translateY(-2px)}
.btn .ico{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* ===== Навбар ===== */
.nav{position:sticky;top:0;z-index:50;transition:background .3s,border-color .3s,backdrop-filter .3s;border-bottom:1px solid transparent}
.nav.scrolled{background:rgba(10,13,34,.72);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav__inner{display:flex;align-items:center;gap:24px;height:72px}
.nav__logo{display:flex;align-items:center}
.nav__links{display:flex;gap:28px;margin-left:8px}
.nav__links a{font-size:15px;color:var(--muted);font-weight:450;transition:color .2s;position:relative}
.nav__links a:hover{color:var(--paper)}
.nav__right{display:flex;align-items:center;gap:14px;margin-left:auto}
.navlink-cta{display:none}

.lang{display:inline-flex;gap:2px;padding:3px;border:1px solid var(--line);border-radius:var(--r-pill);background:rgba(255,255,255,.03)}
.lang__btn{
  border:0;background:transparent;color:var(--muted);cursor:pointer;
  font-family:inherit;font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:5px 11px;border-radius:var(--r-pill);transition:.2s;
}
.lang__btn:hover{color:var(--paper)}
.lang__btn.active{background:var(--grad);color:#0A0D22}

.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.burger span{width:24px;height:2px;background:var(--paper);border-radius:2px;transition:.3s}
.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)}

/* ===== HERO ===== */
.hero{padding:72px 0 64px;position:relative}
.hero__inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero__title{
  font-family:var(--head);font-weight:700;
  font-size:clamp(40px,6vw,76px);line-height:1.04;letter-spacing:-.025em;
  margin:0 0 22px;
}
.hero__lede{font-size:clamp(16px,2vw,19px);color:var(--muted);max-width:52ch;margin:0 0 32px}
.hero__cta{display:flex;align-items:center;gap:18px;flex-wrap:wrap}

/* hero visual + плавающие карточки */
.hero__visual{position:relative;height:440px}
.star-orb{
  position:absolute;inset:0;margin:auto;width:230px;height:230px;
  display:grid;place-items:center;
}
.star-orb::before{
  content:"";position:absolute;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(109,93,245,.35),rgba(31,200,230,.12) 45%,transparent 70%);
  filter:blur(6px);animation:pulse 6s ease-in-out infinite;
}
.star{width:150px;height:150px;position:relative;filter:drop-shadow(0 10px 40px rgba(109,93,245,.45));animation:spin 40s linear infinite}

.float-card{
  position:absolute;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:16px 18px;backdrop-filter:blur(8px);
  box-shadow:var(--elev);min-width:160px;animation:floaty 7s ease-in-out infinite;
}
.fc1{top:14px;left:-14px}
.fc2{bottom:18px;left:30px;animation-delay:-2.5s}
.fc3{top:42%;right:-18px;animation-delay:-4s}
.fc__row{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.fc__dot{width:8px;height:8px;border-radius:50%;background:var(--grad);box-shadow:0 0 10px rgba(31,200,230,.8)}
.fc__k{font-size:13px;color:var(--muted);font-weight:500}
.fc__big{font-family:var(--head);font-weight:700;font-size:30px;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.fc__sub{font-size:12px;color:var(--muted);margin-top:4px}
.fc__chip{font-size:11px;font-weight:700;color:#0A0D22;background:var(--grad);padding:2px 8px;border-radius:var(--r-pill)}
.fc__bars{display:flex;align-items:flex-end;gap:5px;height:42px;margin:4px 0}
.fc__bars i{width:9px;border-radius:3px 3px 0 0;background:linear-gradient(180deg,var(--cyan),var(--violet));display:block}

/* ===== Полоска доверия ===== */
.trust{padding:8px 0 16px}
.trust__inner{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;justify-content:center;text-align:center;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 0}
.trust__label{font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.16em}
.trust__items{font-size:14px;color:var(--paper);font-weight:500}

/* ===== Секции ===== */
.section{padding:var(--section) 0}
.section--alt{background:linear-gradient(180deg,transparent,rgba(255,255,255,.018),transparent)}
.section__head{max-width:640px;margin:0 0 48px}
.section__title{font-family:var(--head);font-weight:600;font-size:clamp(28px,4vw,44px);letter-spacing:-.02em;line-height:1.1;margin:0 0 14px}
.section__lede{color:var(--muted);font-size:18px;margin:0}

.grid{display:grid;gap:20px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}

/* карточки услуг */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:28px;box-shadow:var(--elev);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--elev-hov);border-color:rgba(255,255,255,.16)}
.card__icon{
  width:50px;height:50px;border-radius:14px;display:grid;place-items:center;
  background:rgba(109,93,245,.12);border:1px solid rgba(109,93,245,.25);margin-bottom:18px;
}
.card__icon svg{width:24px;height:24px;fill:none;stroke:var(--cyan);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card__title{font-family:var(--head);font-weight:600;font-size:19px;margin:0 0 10px;letter-spacing:-.01em}
.card__text{color:var(--muted);font-size:15px;margin:0}

/* шаги */
.step{padding:28px;border-radius:var(--r);border:1px solid var(--line);background:var(--card);box-shadow:var(--elev);transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.step:hover{transform:translateY(-6px);box-shadow:var(--elev-hov)}
.step__num{font-family:var(--head);font-weight:700;font-size:34px;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;display:block;margin-bottom:16px}
.step__title{font-family:var(--head);font-weight:600;font-size:18px;margin:0 0 8px}
.step__text{color:var(--muted);font-size:14.5px;margin:0}

/* кейсы */
.case{padding:30px;border-radius:var(--r);border:1px solid var(--line);
  background:radial-gradient(120% 120% at 0% 0%,rgba(109,93,245,.10),transparent 55%),var(--card);
  box-shadow:var(--elev);transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s}
.case:hover{transform:translateY(-6px);box-shadow:var(--elev-hov);border-color:rgba(31,200,230,.3)}
.case__tag{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--cyan);
  background:rgba(31,200,230,.1);border:1px solid rgba(31,200,230,.22);padding:5px 12px;border-radius:var(--r-pill);margin-bottom:18px}
.case__title{font-family:var(--head);font-weight:600;font-size:21px;margin:0 0 10px;letter-spacing:-.01em}
.case__text{color:var(--muted);font-size:15px;margin:0}

/* о компании */
.about__inner{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.about__text{color:var(--muted);font-size:17px;margin:0 0 16px;max-width:54ch}
.about__stats{display:grid;gap:14px}
.stat{padding:22px 26px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--card);display:flex;align-items:baseline;gap:16px}
.stat__v{font-family:var(--head);font-weight:700;font-size:26px;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;white-space:nowrap}
.stat__k{color:var(--muted);font-size:15px}

/* CTA-полоса */
.cta-band{padding:40px 0 110px}
.cta-band__inner{
  text-align:center;border-radius:32px;padding:64px 32px;
  background:
    radial-gradient(700px 300px at 50% 0%,rgba(109,93,245,.25),transparent 70%),
    linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border:1px solid var(--line);box-shadow:var(--elev);
}
.cta-band__title{font-family:var(--head);font-weight:700;font-size:clamp(26px,4vw,40px);letter-spacing:-.02em;margin:0 0 14px;line-height:1.12}
.cta-band__lede{color:var(--muted);font-size:18px;margin:0 0 30px}

/* ===== Футер ===== */
.footer{border-top:1px solid var(--line);padding:64px 0 28px;background:linear-gradient(180deg,transparent,rgba(109,93,245,.05))}
.footer__inner{display:grid;grid-template-columns:1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid var(--line)}
.footer__tag{color:var(--muted);font-size:15px;margin:16px 0 0}
.footer__h{font-family:var(--head);font-weight:600;font-size:20px;margin:0 0 18px}
.footer__btns{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:18px}
.footer__addr{color:var(--muted);font-size:14px;margin:0}
.footer__bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:24px;color:var(--muted);font-size:13px;flex-wrap:wrap}

/* ===== reveal-анимация ===== */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.grid .reveal:nth-child(2){transition-delay:.07s}
.grid .reveal:nth-child(3){transition-delay:.14s}
.grid .reveal:nth-child(4){transition-delay:.21s}

/* ===== keyframes ===== */
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@keyframes pulse{0%,100%{transform:scale(1);opacity:.85}50%{transform:scale(1.12);opacity:1}}
@keyframes spin{to{transform:rotate(360deg)}}

/* ===== Адаптив ===== */
@media(max-width:980px){
  .hero__inner{grid-template-columns:1fr;gap:24px}
  /* hero-визуал: компактная звезда + карточки аккуратным стеком (без absolute/наездов) */
  .hero__visual{height:auto;order:-1;max-width:430px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
  .star-orb{position:static;inset:auto;width:120px;height:120px;margin:0 auto 2px}
  .star-orb::before{width:168px;height:168px}
  .star{width:78px;height:78px}
  .float-card{position:static;inset:auto;animation:none;min-width:0;width:100%}
  .about__inner{grid-template-columns:1fr;gap:28px}
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .footer__inner{grid-template-columns:1fr;gap:28px}
}
@media(max-width:760px){
  :root{--section:64px}
  .nav__links{
    position:fixed;inset:72px 0 auto 0;flex-direction:column;gap:0;
    background:rgba(10,13,34,.96);backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);padding:8px 0;
    transform:translateY(-130%);transition:transform .35s var(--ease);
  }
  .nav__links.open{transform:none}
  .nav__links a{padding:14px 24px;border-bottom:1px solid var(--line)}
  .nav__cta{display:none}
  .navlink-cta{display:inline-flex;border-bottom:0;margin:16px 24px 8px;justify-content:center}
  .burger{display:flex}
  .hero__copy .eyebrow{font-size:11px;letter-spacing:.18em;margin-bottom:12px}
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column;align-items:flex-start}
}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
}