/* AIfaFocus — глубокий синий, голубой свет, оранжевый фокус. Сайт про доступность сам обязан быть образцом. */
:root{--bg:#060B1A;--bg2:#0B1430;--card:#0E1938;--line:rgba(148,178,255,.16);--fg:#EEF3FF;--mute:#A8B6D8;--a:#3B82F6;--a2:#60A5FA;--o:#F97316;
  --aifa-a:#3B82F6;--aifa-b:#FB923C;--r:18px;--wrap:1180px;color-scheme:dark}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:400 17px/1.65 'Plus Jakarta Sans',system-ui,sans-serif;overflow-x:hidden}
a{color:var(--a2)}
a:hover{color:#BFDBFE}
:focus-visible{outline:3px solid var(--o);outline-offset:3px;border-radius:6px}
img,svg,video,canvas{max-width:100%}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;margin:0 0 .5em}
p{margin:0 0 1em}
.wrap{width:min(var(--wrap),100% - 40px);margin-inline:auto}
.skip{position:absolute;left:12px;top:-60px;z-index:1000;background:var(--o);color:#111;padding:12px 18px;border-radius:10px;font-weight:700}
.skip:focus{top:12px}
.muted{color:var(--mute)}
.grad{background:linear-gradient(100deg,#93C5FD 0%,#60A5FA 40%,#FDBA74 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.ico{width:28px;height:28px;color:var(--a2)}
.ico-s{width:18px;height:18px;flex:none}
/* шапка */
.top{position:sticky;top:0;z-index:50;transition:background .25s,box-shadow .25s;background:rgba(6,11,26,.55);backdrop-filter:blur(14px)}
.top.scrolled{background:rgba(6,11,26,.86);box-shadow:0 1px 0 var(--line)}
.top-in{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--fg);text-decoration:none;font-size:20px;font-weight:600}
.brand b{color:var(--a2)}
.nav{margin-left:auto}
.nav ul,.langs{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.nav a,.langs a{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;border-radius:10px;color:var(--mute);text-decoration:none;font-weight:500;font-size:15px}
.nav a:hover,.langs a:hover{color:var(--fg);background:rgba(255,255,255,.05)}
.langs a{font-size:13px;padding:0 9px;min-width:44px;justify-content:center}
.langs a[aria-current]{color:var(--fg);background:rgba(59,130,246,.18)}
/* кнопки */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 22px;border-radius:14px;font:600 16px/1 inherit;
  text-decoration:none;cursor:pointer;border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease,background .18s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{color:#fff;background:linear-gradient(135deg,#2563EB,#3B82F6 55%,#F97316);box-shadow:0 10px 30px rgba(59,130,246,.35)}
.btn-primary:hover{color:#fff;box-shadow:0 14px 40px rgba(249,115,22,.35)}
.btn-ghost{color:var(--fg);border-color:var(--line);background:rgba(255,255,255,.03)}
.btn-ghost:hover{color:var(--fg);border-color:var(--a2)}
.btn-sm{min-height:44px;padding:0 16px;font-size:15px}
.btn-lg{min-height:56px;padding:0 28px;font-size:17px}
.btns{display:flex;flex-wrap:wrap;gap:14px}
/* герой */
.hero{position:relative;min-height:min(92vh,920px);display:flex;align-items:center;overflow:hidden;padding:72px 0 96px}
.scene{position:absolute;inset:0;width:100%;height:100%;display:block}
.hero::before{content:'';position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(90deg,var(--bg) 18%,rgba(6,11,26,.82) 42%,rgba(6,11,26,.15) 70%,transparent)}
.hero-glow{position:absolute;inset:auto -20% -40% -20%;height:70%;background:radial-gradient(closest-side,rgba(59,130,246,.28),transparent);pointer-events:none}
.hero-in{position:relative;z-index:2;max-width:820px}
.kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--o);margin:0 0 14px}
.kicker-hero{padding:8px 14px;border:1px solid rgba(249,115,22,.4);border-radius:999px;background:rgba(249,115,22,.08)}
.hero h1{font-size:clamp(40px,6.4vw,78px);font-weight:800}
.hero-sub{font-size:clamp(17px,1.6vw,21px);color:#C9D4F0;max-width:680px;margin-bottom:30px}
.chips{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin:30px 0 0}
.chips li{display:flex;align-items:center;gap:8px;padding:9px 14px;border-radius:999px;border:1px solid var(--line);background:rgba(11,20,48,.7);font-size:14px;color:#D6E0FA}
.chips svg{color:var(--o)}
/* секции */
.sec{padding:clamp(72px,10vw,128px) 0;position:relative}
.sec:nth-of-type(even){background:linear-gradient(180deg,transparent,rgba(14,25,56,.55),transparent)}
.sec h2{font-size:clamp(30px,4vw,50px);font-weight:800;max-width:860px}
.lead{font-size:19px;color:var(--mute);max-width:760px;margin-bottom:40px}
.src{margin-top:24px;font-size:14px;color:var(--mute)}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.split{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:start;margin-top:28px}
.split-text p{font-size:18px;color:#CBD5EE}
.points{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:12px}
.points li{display:flex;gap:12px;align-items:flex-start}
.points svg{color:var(--o);margin-top:4px}
.quote{margin:0;padding:34px;border-radius:var(--r);background:linear-gradient(160deg,rgba(59,130,246,.18),rgba(249,115,22,.10));border:1px solid var(--line);font-size:22px;line-height:1.45;font-weight:600}
.stats{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{padding:28px 24px;border-radius:var(--r);background:var(--card);border:1px solid var(--line)}
.stat-n{display:block;font-size:clamp(34px,4vw,48px);font-weight:800;color:#fff;font-variant-numeric:tabular-nums;margin-bottom:6px}
.stat span{color:var(--mute);font-size:15px}
.cards{list-style:none;padding:0;margin:28px 0 0;display:grid;gap:18px;grid-template-columns:repeat(3,1fr)}
.card{padding:30px;border-radius:var(--r);background:var(--card);border:1px solid var(--line);transition:border-color .2s,transform .2s}
.card:hover{border-color:rgba(96,165,250,.55);transform:translateY(-3px)}
.card h3{font-size:21px;margin-top:16px}
.card p{color:var(--mute);margin:0}
.card b{color:#fff}
.steps{list-style:none;padding:0;margin:28px 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s}
.step{position:relative;padding:30px 24px;border-radius:var(--r);background:var(--card);border:1px solid var(--line)}
.step-n{display:inline-flex;width:46px;height:46px;align-items:center;justify-content:center;border-radius:12px;font-weight:800;
  background:linear-gradient(135deg,var(--a),var(--o));color:#fff;margin-bottom:16px}
.step h3{font-size:20px}
.step p{color:var(--mute);margin:0;font-size:16px}
.plans{list-style:none;padding:0;margin:28px 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}
.plan{position:relative;display:flex;flex-direction:column;padding:32px 28px;border-radius:22px;background:var(--card);border:1px solid var(--line)}
.plan-hot{background:linear-gradient(170deg,#13245A,#0E1938);border-color:rgba(249,115,22,.6);box-shadow:0 20px 60px rgba(59,130,246,.25)}
.plan-badge{position:absolute;top:-13px;left:28px;padding:5px 12px;border-radius:999px;background:var(--o);color:#1a0d00;font-size:12px;font-weight:800;letter-spacing:.04em;text-transform:uppercase}
.plan h3{font-size:22px}
.plan-price{display:flex;align-items:baseline;gap:8px;margin:4px 0 10px}
.plan-price b{font-size:46px;font-weight:800;color:#fff}
.plan-price span{color:var(--mute)}
.plan-desc{color:#CBD5EE}
.plan-feats{list-style:none;padding:0;margin:8px 0 26px;display:grid;gap:10px;flex:1}
.plan-feats li{display:flex;gap:10px;font-size:15px;color:#D6E0FA}
.plan-feats svg{color:#34D399;margin-top:3px}
.faq{display:grid;gap:12px;margin-top:28px;max-width:900px}
.faq-item{border:1px solid var(--line);border-radius:16px;background:var(--card)}
.faq-item summary{cursor:pointer;list-style:none;padding:20px 56px 20px 22px;font-weight:600;font-size:18px;position:relative;min-height:44px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:26px;color:var(--o);transition:transform .2s}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-item div{padding:0 22px 20px;color:var(--mute)}
.cta-box{margin-top:24px;padding:clamp(28px,5vw,56px);border-radius:28px;background:radial-gradient(120% 140% at 0% 0%,rgba(59,130,246,.35),transparent 55%),
  radial-gradient(120% 140% at 100% 100%,rgba(249,115,22,.25),transparent 55%),var(--card);border:1px solid var(--line)}
.cta-text{font-size:20px;color:#D6E0FA;max-width:760px;margin-bottom:28px}
/* подвал */
.foot{border-top:1px solid var(--line);padding:64px 0 28px;background:#040816}
.foot-in{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.foot-brand p{color:var(--mute);font-size:15px;max-width:380px;margin-top:14px}
.foot-h{font-size:14px;letter-spacing:.12em;text-transform:uppercase;color:var(--mute);margin-bottom:14px}
.foot ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}
.foot ul a{color:#D6E0FA;text-decoration:none;display:inline-flex;min-height:32px;align-items:center;word-break:break-all}
.foot ul a:hover{color:#fff;text-decoration:underline}
.foot-legal{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);color:var(--mute);font-size:14px}
.legal{max-width:820px}.legal h1{font-size:44px}.legal h2{font-size:24px;margin-top:36px}
@media (max-width:1024px){.nav{display:none}.stats,.steps{grid-template-columns:repeat(2,1fr)}.cards,.plans{grid-template-columns:1fr 1fr}.split{grid-template-columns:1fr}.foot-in{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.hero::before{background:rgba(6,11,26,.78)}body{font-size:16px}.stats,.steps,.cards,.plans{grid-template-columns:1fr}.foot-in{grid-template-columns:1fr}.top-in{gap:10px}.langs a{min-width:38px;padding:0 6px}.btn-sm{display:none}.hero{min-height:auto;padding:48px 0 72px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}.btn:hover,.card:hover{transform:none}}