/* ВИЗУС — коррекция зрения: чистый оптический белый + небесно-голубой и бирюза, ясность, Onest. */
:root{
  --bg:#eef4f9;--paper:#ffffff;--panel:#f4f8fc;--ink:#0e2635;--mut:#54697a;--line:#dbe6ef;
  --blue:#0ea5e9;--blue-d:#0284c7;--teal:#12b3a6;--navy:#0c3350;--ok:#16b378;
  --radius:18px;--max:1180px;--ease:cubic-bezier(.22,.8,.2,1);
  --sans:'Onest',-apple-system,Segoe UI,Arial,sans-serif;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 26px}
.sec{padding:90px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:15px 28px;border-radius:40px;font-weight:700;font-size:15px;cursor:pointer;border:0;transition:.2s var(--ease);font-family:var(--sans)}
.btn--blue{background:var(--blue);color:#fff;box-shadow:0 10px 26px -8px rgba(14,165,233,.6)}.btn--blue:hover{background:var(--blue-d)}
.btn--navy{background:var(--navy);color:#fff}.btn--navy:hover{background:#0a2740}
.btn--out{background:var(--paper);border:1px solid var(--line);color:var(--ink)}.btn--out:hover{border-color:var(--blue);color:var(--blue-d)}
.btn--wide{width:100%}
.arrow{transition:.2s}.btn:hover .arrow{transform:translateX(3px)}

.hdr{position:sticky;top:0;z-index:100;background:rgba(238,244,249,.9);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:.3s}
.hdr.scr{border-color:var(--line)}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;height:78px;gap:16px}
.logo{font-size:25px;font-weight:800;letter-spacing:.06em;color:var(--navy)}
.nav{display:flex;gap:28px}.nav a{color:var(--mut);font-weight:600;font-size:14px}.nav a:hover{color:var(--ink)}
.hdr .r{display:flex;align-items:center;gap:18px}.hdr .ph{font-weight:700;font-size:16px}
.burger{display:none;background:none;border:0;font-size:26px;cursor:pointer;color:var(--ink)}

.hero{position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;right:-8%;top:-30%;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(14,165,233,.14),transparent 70%)}
.hero .wrap{display:grid;grid-template-columns:1.02fr .98fr;gap:46px;align-items:center;padding:56px 26px 70px;position:relative}
.hero .badge{display:inline-flex;align-items:center;gap:8px;background:var(--paper);border:1px solid var(--line);border-radius:40px;padding:7px 15px;font-weight:600;font-size:13px;color:var(--blue-d);margin-bottom:22px}
.hero h1{font-size:clamp(38px,5.2vw,58px);line-height:1.06;font-weight:800;margin:0 0 20px;letter-spacing:-.02em}
.hero h1 span{color:var(--blue-d)}
.hero .lead{font-size:18px;color:var(--mut);max-width:490px;margin:0 0 30px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:32px}
.hero .mini{display:flex;gap:36px;flex-wrap:wrap}
.hero .mini b{font-size:30px;font-weight:800;display:block;line-height:1;color:var(--blue-d)}
.hero .mini span{color:var(--mut);font-size:13px}

/* слайдер чёткости */
.vision{background:var(--paper);border:1px solid var(--line);border-radius:24px;padding:26px;box-shadow:0 40px 90px -30px rgba(14,38,53,.28)}
.vchart{background:var(--panel);border-radius:16px;padding:26px 20px;text-align:center;overflow:hidden}
.vchart .rows{filter:blur(var(--bl,7px));transition:filter .1s linear;line-height:1.15}
.vchart .r{font-weight:800;letter-spacing:.14em;color:var(--navy)}
.vchart .r1{font-size:44px}.vchart .r2{font-size:32px}.vchart .r3{font-size:22px}.vchart .r4{font-size:15px}
.vslide{margin-top:20px}
.vslide .lbls{display:flex;justify-content:space-between;font-size:12px;font-weight:700;color:var(--mut);margin-bottom:8px}
.vslide input{width:100%;accent-color:var(--blue)}
.vslide .pct{text-align:center;margin-top:14px}
.vslide .pct b{font-size:30px;font-weight:800;color:var(--blue-d)}
.vslide .pct span{color:var(--mut);font-size:13px;display:block}

.head{max-width:640px;margin:0 auto 50px;text-align:center}
.head.left{text-align:left;margin:0 0 44px}
.head .k{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-d);margin-bottom:12px;font-weight:700}
.head h2{font-size:clamp(30px,4.2vw,46px);font-weight:800;margin:0 0 12px;line-height:1.08;letter-spacing:-.02em}
.head p{color:var(--mut);font-size:18px;margin:0}

.methods{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.mth{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.25s var(--ease);border-top:3px solid var(--blue)}
.mth:hover{transform:translateY(-6px);box-shadow:0 22px 44px -20px rgba(14,38,53,.28)}
.mth .ic{font-size:28px;margin-bottom:12px}
.mth h3{font-size:19px;margin:0 0 6px;font-weight:800}
.mth p{color:var(--mut);font-size:14px;margin:0 0 12px}
.mth .from{font-size:13px;color:var(--blue-d);font-weight:700}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stp{text-align:center}
.stp .n{width:54px;height:54px;border-radius:50%;background:var(--panel);display:grid;place-items:center;font-size:22px;font-weight:800;color:var(--blue);margin:0 auto 14px}
.stp h3{font-size:18px;margin:0 0 6px;font-weight:800}.stp p{color:var(--mut);font-size:14px;margin:0}

.safe{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.sc{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.sc .ic{width:52px;height:52px;border-radius:14px;background:var(--panel);display:grid;place-items:center;font-size:24px;margin-bottom:14px}
.sc h3{font-size:19px;margin:0 0 6px;font-weight:800}.sc p{color:var(--mut);font-size:14px;margin:0}

.revs2{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.rv2{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.rv2 .st{color:var(--teal);letter-spacing:3px;margin-bottom:12px}
.rv2 p{font-size:14px;margin:0 0 16px}
.rv2 .who b{display:block;font-size:14px}.rv2 .who span{color:var(--mut);font-size:12px}

.faq2{max-width:760px;margin:0 auto}
.faq2 details{background:var(--paper);border:1px solid var(--line);border-radius:16px;margin-bottom:10px;overflow:hidden}
.faq2 summary{list-style:none;cursor:pointer;padding:18px 22px;font-weight:700;font-size:16px;display:flex;justify-content:space-between;gap:14px}
.faq2 summary::-webkit-details-marker{display:none}
.faq2 summary .ar{color:var(--blue);transition:transform .3s var(--ease)}
.faq2 details[open] summary .ar{transform:rotate(45deg)}
.faq2 .a{padding:0 22px 18px;color:var(--mut);font-size:14px}

.contact{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:24px;overflow:hidden;background:var(--paper)}
.cform{padding:44px}.cform h3{font-size:28px;font-weight:800;margin:0 0 6px}.cform .sub{color:var(--mut);margin:0 0 20px}
.field{margin-bottom:14px}.field label{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--mut);margin-bottom:7px;font-weight:700}
.field input,.field select,.field textarea{width:100%;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px;color:var(--ink);font:inherit}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue)}
.lp-consent{display:flex;gap:9px;align-items:flex-start;font-size:12px;color:var(--mut);margin:8px 0 16px;cursor:pointer}
.lp-consent input{margin-top:2px;width:16px;height:16px;flex:0 0 auto;accent-color:var(--blue)}
.lp-consent a{color:var(--blue-d);text-decoration:underline}
.cinfo{padding:44px;background:linear-gradient(160deg,var(--navy),#081f30);color:#fff}
.cinfo h3{font-size:22px;font-weight:800;margin:0 0 22px}
.cinfo .line{display:flex;gap:13px;align-items:center;margin-bottom:16px}
.cinfo .line .ic{width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.08);display:grid;place-items:center;font-size:17px;flex:0 0 auto;color:var(--blue)}
.cinfo .map{margin-top:18px;border-radius:14px;overflow:hidden;min-height:150px;background:rgba(255,255,255,.06)}
.cinfo .map iframe{width:100%;height:200px;border:0;display:block}
.cinfo .map .stub{display:grid;place-items:center;height:170px;color:rgba(255,255,255,.6);font-size:14px}

.lp-flash{position:fixed;top:18px;left:50%;transform:translateX(-50%);z-index:9998;max-width:520px;width:calc(100% - 36px);padding:15px 44px 15px 18px;border-radius:14px;font-weight:600;box-shadow:0 20px 50px rgba(14,38,53,.18)}
.lp-flash--ok{background:#e6f7f1;border:1px solid var(--ok);color:#0b7a52}
.lp-flash--err{background:#fdecec;border:1px solid #e05252;color:#a83232}
.lp-flash__close{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:none;border:0;color:inherit;font-size:22px;cursor:pointer}

.footer{background:var(--navy);color:rgba(255,255,255,.68);padding:52px 0 30px}
.footer .top{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:26px}
.footer .logo{color:#fff;margin-bottom:8px}
.footer .cols{display:flex;gap:56px;flex-wrap:wrap}
.footer .col b{display:block;color:#fff;font-size:13px;margin-bottom:12px}
.footer .col a{display:block;color:rgba(255,255,255,.65);font-size:14px;padding:4px 0}.footer .col a:hover{color:var(--blue)}
.footer .legal{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px}

.reveal{opacity:0;transform:translateY(24px);transition:.7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

@media(max-width:960px){
  .hero .wrap{grid-template-columns:1fr;gap:36px}
  .methods{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .safe{grid-template-columns:1fr}
  .revs2{grid-template-columns:1fr}
  .contact{grid-template-columns:1fr}
  .nav{display:none}
}
@media(max-width:560px){.methods{grid-template-columns:1fr}.steps{grid-template-columns:1fr}}