:root{
  --navy:#0b2a66;
  --navy-2:#123f87;
  --blue:#2b82e6;
  --sky:#dff1ff;
  --ice:#f5faff;
  --ink:#13233f;
  --muted:#6b7c98;
  --line:#dce8f5;
  --white:#ffffff;
  --shadow:0 18px 50px rgba(12,43,102,.10);
  --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  color:var(--ink);
  background:#fff;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{width:min(1180px,92%);margin:auto}

header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(220,232,245,.9);
}
.nav{
  height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}
.logo{
  display:flex;align-items:center;gap:11px;
  font-weight:850;color:var(--navy);
  font-size:25px;letter-spacing:.05em;
}
.mark{
  width:36px;height:36px;border-radius:50%;
  background:
    radial-gradient(circle at 50% 50%,#fff 0 23%,transparent 24%),
    conic-gradient(from 210deg,#0b2a66,#2b82e6,#8bd9ff,#2b82e6,#0b2a66);
  box-shadow:inset 0 0 0 1px rgba(11,42,102,.08);
}
nav{display:flex;gap:22px;align-items:center;font-size:14px;font-weight:700;color:#2c3f5e}
nav a:hover{color:var(--blue)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:46px;padding:0 20px;border-radius:12px;
  background:var(--navy);color:#fff;font-weight:800;
  border:1px solid var(--navy);
  transition:.2s ease;
}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 20px rgba(11,42,102,.14)}
.btn.alt{background:#fff;color:var(--navy);border-color:#cfdced}
.btn.light{background:#fff;color:var(--navy);border-color:#fff}

.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 78% 24%, rgba(130,210,255,.35), transparent 28%),
    linear-gradient(125deg,#fbfdff 15%,#edf7ff 55%,#dcefff 100%);
  padding:84px 0 72px;
}
.hero:after{
  content:"";
  position:absolute;right:-8%;bottom:-50px;
  width:600px;height:220px;border-radius:50%;
  background:rgba(255,255,255,.55);
  filter:blur(18px);transform:rotate(-7deg);
}
.hero-grid{
  display:grid;grid-template-columns:1.02fr .98fr;
  gap:54px;align-items:center;position:relative;z-index:1;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--blue);font-weight:850;letter-spacing:.13em;
  text-transform:uppercase;font-size:12px;
}
.eyebrow:before{
  content:"";width:22px;height:2px;border-radius:2px;background:var(--blue)
}
h1{
  font-size:clamp(46px,6vw,76px);
  line-height:.97;letter-spacing:-.045em;
  color:var(--navy);margin:18px 0 22px;
}
h2{
  font-size:clamp(32px,4vw,46px);
  line-height:1.05;letter-spacing:-.03em;
  color:var(--navy);margin:0 0 14px;
}
h3{color:var(--navy);margin:10px 0 9px;font-size:20px}
p{line-height:1.65}
.lead{
  font-size:19px;line-height:1.7;color:var(--muted);
  max-width:650px;
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-points{
  display:flex;gap:22px;flex-wrap:wrap;margin-top:30px;
  color:#425573;font-size:13px;font-weight:700;
}
.hero-points span{display:flex;gap:8px;align-items:center}
.hero-points i{
  width:8px;height:8px;border-radius:50%;
  background:var(--blue);display:inline-block
}

.hero-showcase{
  position:relative;min-height:500px;
  display:flex;align-items:center;justify-content:center;
}
.orbit{
  position:absolute;border:1px solid rgba(43,130,230,.18);
  border-radius:50%;
}
.orbit.one{width:430px;height:430px}
.orbit.two{width:330px;height:330px}
.orbit.three{width:230px;height:230px}
.lens-disc{
  position:absolute;width:250px;height:250px;border-radius:50%;
  background:
    radial-gradient(circle at 50% 50%,rgba(255,255,255,.2) 0 26%,rgba(255,255,255,.55) 27% 28%,transparent 29%),
    radial-gradient(circle at 35% 30%,rgba(255,255,255,.8),rgba(117,201,255,.28) 35%,rgba(23,106,198,.14) 65%,rgba(255,255,255,.02) 72%);
  border:1px solid rgba(43,130,230,.22);
  box-shadow:inset 0 0 35px rgba(255,255,255,.8),0 28px 60px rgba(25,82,150,.12);
  backdrop-filter:blur(3px);
}
.product-float{
  position:absolute;background:white;border:1px solid var(--line);
  border-radius:18px;box-shadow:var(--shadow);
  padding:12px;
}
.product-float img{width:100%;height:100%;object-fit:contain}
.product-float.p1{width:190px;height:220px;left:5%;bottom:7%;transform:rotate(-4deg)}
.product-float.p2{width:175px;height:210px;right:2%;bottom:2%;transform:rotate(5deg)}
.product-float.p3{width:170px;height:205px;right:10%;top:1%;transform:rotate(4deg)}
.badge-float{
  position:absolute;left:2%;top:8%;
  background:rgba(255,255,255,.92);border:1px solid var(--line);
  border-radius:16px;padding:14px 16px;box-shadow:var(--shadow);
  font-size:12px;font-weight:800;color:var(--navy);
}

.section{padding:82px 0}
.section.light{background:var(--ice)}
.section-head{
  display:flex;justify-content:space-between;align-items:end;
  gap:30px;margin-bottom:30px
}
.section-head p{max-width:560px;color:var(--muted);margin:0}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{
  border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;overflow:hidden;box-shadow:0 10px 30px rgba(26,55,95,.055);
  transition:.22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:0 20px 45px rgba(26,55,95,.10)}
.card-media{
  height:280px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(145deg,#fff,#f7fbff);
  padding:20px;position:relative;
}
.card-media img{width:100%;height:100%;object-fit:contain}
.card-body{padding:22px 22px 24px}
.card-body p{color:var(--muted);margin-bottom:17px}
.tag{
  display:inline-flex;padding:7px 11px;border-radius:999px;
  background:#eaf4ff;color:#1768c7;font-size:11px;font-weight:850;
  letter-spacing:.05em;text-transform:uppercase;
}
.text-link{font-weight:850;color:var(--navy)}
.text-link:hover{color:var(--blue)}

.optiaura-teaser{
  background:linear-gradient(135deg,#0b2a66,#0f4b9e 58%,#2b82e6);
  color:#fff;border-radius:28px;overflow:hidden;position:relative;
  padding:44px;min-height:280px;display:grid;grid-template-columns:1.2fr .8fr;align-items:center
}
.optiaura-teaser:after{
  content:"";position:absolute;width:300px;height:300px;border-radius:50%;
  right:-70px;top:-70px;border:1px solid rgba(255,255,255,.22);
  box-shadow:0 0 0 55px rgba(255,255,255,.04),0 0 0 110px rgba(255,255,255,.03)
}
.optiaura-teaser h2{color:#fff}
.optiaura-wordmark{
  font-size:38px;font-weight:900;letter-spacing:.12em;
  text-align:center;position:relative;z-index:1
}
.optiaura-wordmark small{
  display:block;font-size:12px;letter-spacing:.22em;margin-top:10px;font-weight:700;opacity:.8
}

.feature{
  padding:24px;border:1px solid var(--line);border-radius:18px;background:#fff
}
.feature-icon{
  width:42px;height:42px;border-radius:12px;background:#eaf4ff;
  color:var(--blue);display:grid;place-items:center;font-weight:900;margin-bottom:14px
}
.feature p{color:var(--muted);margin-bottom:0}

.split{
  display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center
}
.panel{
  border:1px solid var(--line);border-radius:24px;background:#fff;
  padding:32px;box-shadow:0 12px 30px rgba(26,55,95,.05)
}
.checks{display:grid;gap:12px;margin-top:22px}
.check{display:flex;gap:12px;align-items:flex-start;color:#425573}
.check b{
  width:22px;height:22px;border-radius:50%;background:#eaf4ff;color:var(--blue);
  display:grid;place-items:center;flex:0 0 auto;font-size:12px
}

.cta{
  background:linear-gradient(115deg,#0b2a66,#114b9b);
  color:#fff;border-radius:24px;padding:38px 40px;
  display:flex;justify-content:space-between;align-items:center;gap:24px;
  box-shadow:0 22px 55px rgba(11,42,102,.18)
}
.cta h2{color:#fff;margin-bottom:8px}
.cta p{margin:0;color:#dbe9ff}

footer{background:#08214f;color:#d8e6ff;padding:52px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:30px}
footer h4{color:#fff;margin:0 0 14px}
footer a{display:block;margin:8px 0;color:#d8e6ff}
footer a:hover{color:#fff}
.small{font-size:13px;color:#7a8ba7}

.page-hero{padding:56px 0;background:linear-gradient(120deg,#f8fbff,#eaf4ff)}
.page-hero h1{font-size:54px}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form input,.form textarea,.form select{
  width:100%;padding:14px;border:1px solid var(--line);border-radius:10px;font:inherit
}
.form textarea{grid-column:1/-1;min-height:140px}
.form .full{grid-column:1/-1}
.notice{
  padding:14px 16px;background:#fff7db;border:1px solid #f0da8d;
  border-radius:10px;color:#6c5711
}

@media(max-width:960px){
  nav a:not(.btn){display:none}
  .hero-grid,.split,.optiaura-teaser{grid-template-columns:1fr}
  .hero-showcase{min-height:420px}
  .grid-4{grid-template-columns:1fr 1fr}
  .grid-3,.product-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .nav{height:68px}
  nav .btn{padding:0 13px;min-height:40px;font-size:12px}
  .logo{font-size:21px}
  .hero{padding:58px 0 48px}
  .hero-showcase{min-height:360px}
  .orbit.one{width:320px;height:320px}
  .orbit.two{width:250px;height:250px}
  .orbit.three{width:180px;height:180px}
  .lens-disc{width:190px;height:190px}
  .product-float.p1{width:125px;height:150px}
  .product-float.p2{width:120px;height:145px}
  .product-float.p3{width:115px;height:140px}
  .badge-float{font-size:10px;padding:10px 12px}
  .section{padding:60px 0}
  .section-head{display:block}
  .grid-4,.footer-grid,.info-grid{grid-template-columns:1fr}
  .cta{flex-direction:column;align-items:flex-start;padding:30px}
  .form{grid-template-columns:1fr}
  .form textarea,.form .full{grid-column:1}
}


/* === v9 responsive + consistency pass === */
.mobile-toggle{
  display:none;
  width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
  background:#fff;color:var(--navy);font-size:20px;font-weight:800;
  align-items:center;justify-content:center;cursor:pointer;
}
.mobile-menu{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(255,255,255,.98);
}
.mobile-menu.open{display:block}
.mobile-menu .container{
  padding:14px 0 18px;
  display:grid;gap:4px;
}
.mobile-menu a{
  padding:11px 8px;
  font-weight:750;color:#2c3f5e;border-radius:8px;
}
.mobile-menu a:hover{background:#f3f8ff;color:var(--blue)}

.card-media img,
.hero-showcase img{
  image-rendering:auto;
}
.card-body .checks{margin-top:14px}
.card-body .text-link{display:inline-block;margin-top:10px}

.page-hero .container{max-width:1180px}
.page-hero .lead{max-width:760px}
.section-head h2{max-width:760px}

footer .small{color:#9eb2d1}
footer .logo .mark{box-shadow:none}

@media(max-width:960px){
  nav{display:none}
  .mobile-toggle{display:inline-flex}
  .hero-grid{gap:30px}
  .hero{padding-top:64px}
  .hero-showcase{margin-top:12px}
  .section-head{align-items:start}
  .optiaura-teaser{padding:34px}
}

@media(max-width:760px){
  h1{font-size:clamp(40px,12vw,58px)}
  h2{font-size:clamp(30px,8vw,40px)}
  .lead{font-size:17px}
  .hero-actions .btn{width:100%}
  .hero-points{display:grid;gap:10px}
  .card-media{height:240px}
  .section-head{display:block}
  .section-head p{margin-top:10px}
  .grid-4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .page-hero{padding:46px 0}
  .page-hero h1{font-size:44px}
  .optiaura-teaser{padding:28px;min-height:0}
  .optiaura-wordmark{font-size:30px}
}

@media(max-width:480px){
  .container{width:min(94%,1180px)}
  .nav{height:64px}
  .logo{font-size:19px}
  .mark{width:32px;height:32px}
  .hero{padding:48px 0 42px}
  .hero-showcase{min-height:330px}
  .product-float.p1{left:0}
  .product-float.p2{right:0}
  .product-float.p3{right:4%;top:0}
  .badge-float{left:0;top:2%}
  .section{padding:52px 0}
  .panel{padding:24px}
  .cta{padding:26px}
  .card-body{padding:20px}
}

/* language selector */
.lang-switcher{
  display:flex;align-items:center;gap:4px;
  padding:3px;border:1px solid var(--line);border-radius:10px;background:#fff;
}
.lang{
  border:0;background:transparent;color:#657693;
  border-radius:7px;padding:7px 8px;font-size:11px;font-weight:850;cursor:pointer;
}
.lang.active{background:#eaf4ff;color:var(--navy)}
.mobile-langs{margin-top:8px;width:max-content}
@media(min-width:961px){.mobile-langs{display:none}}
@media(max-width:960px){
  nav .lang-switcher{display:none}
  .mobile-menu .lang-switcher{display:flex}
}

/* form anti-spam honeypot */
.hp-field{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;overflow:hidden!important}

/* Official Optiaura identity */
.logo{gap:0;flex:none;letter-spacing:normal}
.logo .brand-image{width:136px;height:auto;max-width:none}
footer .logo{display:inline-flex;background:#fff;border-radius:12px;padding:4px 7px}
footer .logo .brand-image{width:150px}
@media(max-width:640px){.logo .brand-image{width:123px}}
@media(max-width:480px){.logo .brand-image{width:113px}}