:root{
  --navy:#003150; --cyan:#009FDA; --cyan-d:#0089bd;
  --ink:#1c2b36; --grey:#5a6b76; --line:#e6ecf0; --soft:#f4f7f9; --white:#fff;
  --maxw:1120px; --radius:12px;
  --shadow:0 10px 30px rgba(0,49,80,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Helvetica Neue',Arial,sans-serif;color:var(--ink);line-height:1.55;background:var(--white);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:74px 0}
.section.alt{background:var(--soft)}
.eyebrow{color:var(--cyan);font-size:12px;font-weight:700;letter-spacing:2.5px;text-transform:uppercase}
h1,h2,h3{color:var(--navy);line-height:1.1;font-weight:800}
h2{font-size:30px}
.section-head{max-width:680px;margin-bottom:40px}
.section-head h2{margin-top:8px}
.section-head p{color:var(--grey);margin-top:12px;font-size:16px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;padding:13px 24px;border-radius:40px;border:2px solid transparent;cursor:pointer;transition:.18s;white-space:nowrap}
.btn-primary{background:var(--cyan);color:#fff}
.btn-primary:hover{background:var(--cyan-d)}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn-light{background:#fff;color:var(--navy)}
.btn-light:hover{background:#eaf6fc}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-outline-light:hover{border-color:#fff}

/* Nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:74px}
.nav-logo img{height:38px}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a.link{font-weight:600;font-size:15px;color:var(--navy);position:relative;padding:4px 0}
.nav-links a.link:hover{color:var(--cyan)}
.nav-links a.link.active{color:var(--cyan)}
.nav-links a.link.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--cyan);border-radius:2px}
.nav-right{display:flex;align-items:center;gap:18px}
.lang{display:flex;border:1px solid var(--line);border-radius:40px;overflow:hidden}
.lang button{border:none;background:#fff;color:var(--grey);font-weight:700;font-size:13px;padding:7px 13px;cursor:pointer}
.lang button.on{background:var(--navy);color:#fff}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:6px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--navy);margin:5px 0;border-radius:2px}

/* Hero */
.hero{background:linear-gradient(160deg,#eef4f8 0%,#fff 60%);overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center;padding:64px 0 70px}
.hero h1{font-size:44px;margin:14px 0 18px}
.hero h1 .c{color:var(--cyan)}
.hero p.lead{font-size:18px;color:var(--grey);max-width:520px}
.hero-cta{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.hero-media{position:relative}
.hero-media .frame{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:20px}
.badge-new{position:absolute;top:-14px;left:-14px;background:var(--cyan);color:#fff;font-weight:800;font-size:13px;letter-spacing:1px;padding:10px 16px;border-radius:40px;box-shadow:var(--shadow)}

/* Trust strip */
.strip{background:var(--navy);color:#fff}
.strip-inner{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-around;text-align:center;padding:26px 0}
.strip .item{flex:1;min-width:150px}
.strip .item b{display:block;font-size:24px;color:#fff}
.strip .item span{font-size:12.5px;color:#bcd0dc;text-transform:uppercase;letter-spacing:1px}

/* Benefits grid */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.bcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;transition:.18s}
.bcard:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.bcard .ic{width:44px;height:44px;border-radius:11px;background:#e6f6fc;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.bcard .ic svg{width:22px;height:22px;stroke:var(--cyan)}
.bcard h3{font-size:16.5px;margin-bottom:7px}
.bcard p{font-size:14px;color:var(--grey)}

/* Capacity */
.caps{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.capbox{border-radius:16px;padding:34px;color:#fff;background:var(--navy)}
.capbox.alt{background:var(--cyan)}
.capbox .lbl{font-size:13px;text-transform:uppercase;letter-spacing:1.5px;opacity:.9;font-weight:600}
.capbox .num{font-size:40px;font-weight:800;margin:10px 0 2px}
.capbox .unit{opacity:.9;font-size:14px}

/* Uses */
.uses{display:flex;flex-wrap:wrap;gap:12px}
.chip{background:#fff;border:1px solid var(--line);border-radius:40px;padding:10px 18px;font-size:14px;font-weight:600;color:var(--navy)}

/* CTA band */
.ctaband{background:var(--navy);color:#fff;border-radius:18px;padding:44px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.ctaband h2{color:#fff}
.ctaband p{color:#bcd0dc;margin-top:8px}

/* Video */
.videowrap{max-width:900px;margin:0 auto}
.ratio{position:relative;padding-top:56.25%;border-radius:16px;overflow:hidden;box-shadow:var(--shadow);background:#000}
.ratio iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* Calculator */
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.calc-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;box-shadow:var(--shadow)}
.calc-card h3{font-size:18px;margin-bottom:18px;display:flex;align-items:center;gap:10px}
.calc-card h3 .tag{font-size:11px;background:var(--soft);color:var(--grey);border-radius:20px;padding:4px 10px;font-weight:700;letter-spacing:.5px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;font-weight:700;color:var(--navy);margin-bottom:8px}
.seg{display:flex;background:var(--soft);border-radius:10px;padding:4px}
.seg button{flex:1;border:none;background:transparent;padding:9px;border-radius:8px;font-weight:700;font-size:13.5px;color:var(--grey);cursor:pointer}
.seg button.on{background:var(--navy);color:#fff}
input[type=range]{width:100%;accent-color:var(--cyan)}
.rangeval{font-size:22px;font-weight:800;color:var(--navy);margin-bottom:4px}
.rangeval span{font-size:13px;font-weight:600;color:var(--grey)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
input[type=number]{width:100%;border:1px solid var(--line);border-radius:9px;padding:11px 12px;font-size:15px;font-family:inherit;color:var(--ink)}
input[type=number]:focus{outline:none;border-color:var(--cyan)}
.hint{font-size:12px;color:var(--grey);margin-top:6px}
.warn{color:#c0392b;font-size:12px;margin-top:6px;display:none}
.mini{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);display:flex;justify-content:space-between;font-size:13.5px}
.mini .k{color:var(--grey)}
.mini .v{font-weight:700;color:var(--navy)}

.result{margin-top:26px;background:var(--navy);color:#fff;border-radius:18px;padding:34px;display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
.result .rblock .rlbl{font-size:12.5px;text-transform:uppercase;letter-spacing:1.4px;color:#9fc4d8;font-weight:600}
.result .rblock .rval{font-size:34px;font-weight:800;margin-top:6px}
.result .rblock .rval.cyan{color:var(--cyan)}
.result .rblock .rsub{font-size:13px;color:#bcd0dc;margin-top:4px}
.result .invest{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:16px}
.result .invest label{display:block;font-size:12px;color:#bcd0dc;margin-bottom:8px;font-weight:600;text-transform:uppercase;letter-spacing:1px}
.result .invest input{background:#fff}
.note{margin-top:22px;background:var(--soft);border-left:3px solid var(--cyan);border-radius:0 8px 8px 0;padding:16px 20px;font-size:13px;color:var(--grey)}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px}
.info-row{display:flex;gap:14px;margin-bottom:22px;align-items:flex-start}
.info-row .ic{width:42px;height:42px;border-radius:11px;background:#e6f6fc;display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.info-row .ic svg{width:20px;height:20px;stroke:var(--cyan)}
.info-row .t{font-size:12px;text-transform:uppercase;letter-spacing:1px;color:var(--grey);font-weight:700}
.info-row .d{font-size:16px;color:var(--navy);font-weight:600}
.demobox{background:var(--soft);border-left:3px solid var(--cyan);border-radius:0 12px 12px 0;padding:22px 24px;margin-bottom:28px}
.demobox h3{font-size:17px;margin-bottom:8px}
.demobox p{color:var(--grey);font-size:15px}
.demolist{list-style:none;margin:14px 0 4px}
.demolist li{position:relative;padding-left:28px;margin-bottom:9px;font-size:15px;color:var(--navy);font-weight:600}
.demolist li::before{content:"";position:absolute;left:0;top:1px;width:18px;height:18px;border-radius:50%;background:var(--cyan)}
.demolist li::after{content:"";position:absolute;left:6px;top:6px;width:6px;height:3px;border-left:1.6px solid #fff;border-bottom:1.6px solid #fff;transform:rotate(-45deg)}
.qtybox{margin-top:16px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 16px}
.qtybox .qty-t{font-size:11px;text-transform:uppercase;letter-spacing:1.2px;color:var(--cyan);font-weight:700;margin-bottom:4px}
.qtybox .qty-d{font-size:15px;color:var(--navy);font-weight:600}
.cform{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px;box-shadow:var(--shadow)}
.cform .field .hint{margin-top:6px}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}
.thanks{text-align:center;max-width:640px;margin:0 auto;padding:40px 0}
.thanks .ic-ok{width:72px;height:72px;border-radius:50%;background:#e6f6fc;display:flex;align-items:center;justify-content:center;margin:0 auto 22px}
.thanks .ic-ok svg{width:34px;height:34px;stroke:var(--cyan)}
.thanks p{color:var(--grey);font-size:16px;margin:12px 0 26px}
.cform .field input,.cform .field textarea{width:100%;border:1px solid var(--line);border-radius:9px;padding:12px;font-size:15px;font-family:inherit}
.cform .field textarea{min-height:120px;resize:vertical}
.cform .field input:focus,.cform .field textarea:focus{outline:none;border-color:var(--cyan)}

/* Footer */
.footer{background:var(--navy);color:#fff;padding:50px 0 26px}
.footer-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px}
.footer h4{color:var(--cyan);font-size:12px;text-transform:uppercase;letter-spacing:2px;margin-bottom:14px}
.footer p,.footer a{color:#cdd9e2;font-size:14px;line-height:1.9}
.footer a:hover{color:#fff}
.footer .brand b{font-size:22px;color:#fff;display:block;letter-spacing:1px}
.footer .brand span{color:var(--cyan);font-style:italic}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:20px;font-size:12.5px;color:#8ea9ba;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr;padding:44px 0}
  .hero h1{font-size:34px}
  .grid{grid-template-columns:1fr 1fr}
  .caps,.calc-grid,.contact-grid,.footer-inner{grid-template-columns:1fr}
  .result{grid-template-columns:1fr}
  .nav-links{position:fixed;top:74px;left:0;right:0;background:#fff;flex-direction:column;align-items:flex-start;gap:0;padding:10px 24px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);display:none}
  .nav-links.open{display:flex}
  .nav-links a.link{width:100%;padding:12px 0;border-bottom:1px solid var(--line)}
  .nav-links .btn{margin:12px 0}
  .nav-toggle{display:block}
  .section{padding:52px 0}
  h2{font-size:25px}
}
@media(max-width:560px){
  .grid{grid-template-columns:1fr}
  .strip .item b{font-size:20px}
}