:root{
  --navy:#20234f;
  --navy2:#161938;
  --blue:#1362a6;
  --orange:#f59a00;
  --ink:#252842;
  --muted:#65687a;
  --paper:#f7f8fb;
  --white:#fff;
  --line:#e7e8ef;
  --shadow:0 18px 60px rgba(28,31,70,.13);
  --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6;background:#fff}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{width:min(1160px,calc(100% - 40px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(20,25,65,.08)}
.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between}
.brand img{width:210px;max-height:60px;object-fit:contain;object-position:left center}
.site-nav{display:flex;gap:28px;align-items:center;font-size:14px;font-weight:700}
.site-nav a:hover{color:var(--blue)}
.nav-cta{background:var(--navy);color:white!important;padding:11px 17px;border-radius:999px}
.menu-toggle{display:none;border:1px solid var(--line);background:white;border-radius:12px;padding:9px 13px;font-weight:700;color:var(--navy)}
.hero{position:relative;min-height:720px;overflow:hidden;display:flex;align-items:center}
.hero-bg{position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.12),rgba(255,255,255,0)),url('assets/beach-hero.jpg') center/cover no-repeat;transform:scale(1.02)}
.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(12,19,54,.1),rgba(12,19,54,0) 62%)}
.hero-grid{position:relative;z-index:2}
.hero-card{max-width:650px;background:rgba(32,35,79,.95);color:white;padding:62px;border-radius:0 0 32px 0;box-shadow:var(--shadow)}
.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:12px;font-weight:800;color:var(--orange);margin:0 0 14px}
h1,h2,h3{font-family:Georgia,"Times New Roman",serif;line-height:1.08;margin:0;color:inherit}
h1{font-size:clamp(62px,8vw,105px);font-weight:500;letter-spacing:-.04em}
h1 span{font-size:.4em;vertical-align:top;margin-left:2px}
.lede{font-size:23px;line-height:1.45;max-width:560px;color:#f4f5ff;margin:22px 0 30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 20px;border-radius:999px;font-weight:800;font-size:14px;transition:.2s ease}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--orange);color:#1d2345}
.btn-secondary{border:1px solid rgba(255,255,255,.5);color:white}
.inci{font-size:12px;color:#cfd2e7;margin:28px 0 0}
.intro{padding:100px 0}
.two-col{display:grid;grid-template-columns:.9fr 1.1fr;gap:80px;align-items:start}
h2{font-size:clamp(38px,4.6vw,62px);letter-spacing:-.025em;font-weight:500}
.intro-copy{font-size:18px;color:var(--muted)}
.intro-copy p:first-child{margin-top:0}
.spectrum{padding:95px 0;background:var(--paper)}
.section-heading{max-width:760px;margin-bottom:42px}
.section-heading.narrow{max-width:820px}
.section-heading.center{text-align:center;margin-inline:auto}
.section-heading p:not(.eyebrow){color:var(--muted);font-size:18px}
.chart-card{margin:0;background:white;padding:18px;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.chart-card img{border-radius:16px;width:100%}
.chart-card figcaption{font-size:12px;color:var(--muted);padding:10px 4px 2px}
.benefits{padding:105px 0}
.benefit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.benefit-card{padding:34px;border:1px solid var(--line);border-radius:20px;background:#fff;min-height:280px}
.benefit-card.featured{background:var(--navy);color:white;border-color:var(--navy)}
.num{display:block;color:var(--orange);font-weight:900;letter-spacing:.08em;margin-bottom:28px}
.benefit-card h3{font-size:28px;margin-bottom:15px}
.benefit-card p{color:var(--muted);margin:0}
.benefit-card.featured p{color:#d8dbef}
.light-section{position:relative;min-height:650px;display:flex;align-items:center;overflow:hidden}
.light-photo{position:absolute;inset:0;background:url('assets/ocean-light.jpg') center/cover no-repeat;filter:saturate(.9)}
.light-section:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.98) 5%,rgba(255,255,255,.88) 52%,rgba(255,255,255,.15) 75%)}
.light-grid{position:relative;z-index:2}
.light-panel{max-width:690px;padding:70px 0}
.light-panel>p:not(.eyebrow){font-size:18px;color:var(--muted)}
.wavelength-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:34px}
.wavelength-row div{background:white;padding:20px;border-radius:16px;box-shadow:0 8px 30px rgba(30,32,76,.08)}
.wavelength-row strong{display:block;color:var(--navy);font-size:23px}
.wavelength-row span{font-size:13px;color:var(--muted)}
.applications{padding:105px 0;background:var(--navy2);color:white}
.application-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:50px}
.application-grid article{padding:34px;border:1px solid rgba(255,255,255,.13);border-radius:20px;background:rgba(255,255,255,.045)}
.app-icon{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;background:var(--orange);color:var(--navy2);font-weight:900;margin-bottom:26px}
.application-grid h3{font-size:30px;margin-bottom:12px}
.application-grid p{color:#c8cbe0;margin:0}
.credibility-strip{display:grid;grid-template-columns:repeat(4,1fr);margin-top:42px;border-top:1px solid rgba(255,255,255,.16);border-bottom:1px solid rgba(255,255,255,.16)}
.credibility-strip div{padding:24px;text-align:center;border-right:1px solid rgba(255,255,255,.16)}
.credibility-strip div:last-child{border-right:0}
.credibility-strip strong,.credibility-strip span{display:block}
.credibility-strip strong{font-family:Georgia,serif;font-size:25px;color:white}
.credibility-strip span{font-size:12px;color:#b8bbd0;margin-top:5px}
.patents{padding:95px 0}
.patent-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.patent-grid>div>p:not(.eyebrow){color:var(--muted);font-size:18px}
.patent-numbers{display:grid;gap:14px}
.patent-numbers div{padding:25px 28px;border:1px solid var(--line);border-radius:18px;background:var(--paper)}
.patent-numbers span{display:block;text-transform:uppercase;font-size:11px;letter-spacing:.13em;color:var(--muted);font-weight:800}
.patent-numbers strong{font-size:29px;color:var(--navy)}
.contact{padding:20px 0 90px}
.contact-card{display:grid;grid-template-columns:1.4fr .6fr;gap:50px;align-items:center;background:var(--blue);color:white;padding:58px 64px;border-radius:28px;box-shadow:var(--shadow)}
.contact-card p:not(.eyebrow){color:#e1eef9;max-width:700px}
.contact-actions{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.btn-light{background:white;color:var(--blue)}
.contact-actions span{font-size:13px;color:#d7e6f3}
footer{border-top:1px solid var(--line);padding:35px 0 28px;background:#fff}
.footer-grid{display:grid;grid-template-columns:210px 1fr auto;gap:30px;align-items:center}
.footer-grid img{width:180px}
.footer-grid p{color:var(--muted);font-size:14px}
.footer-grid a{font-weight:800;color:var(--navy);font-size:13px}
.legal{font-size:11px;color:#8b8d9a;margin-top:22px}
@media(max-width:850px){
  .menu-toggle{display:block}.site-nav{display:none;position:absolute;top:78px;left:0;right:0;background:white;padding:22px 20px;flex-direction:column;align-items:stretch;border-bottom:1px solid var(--line)}.site-nav.open{display:flex}
  .hero{min-height:650px;align-items:flex-end}.hero-card{padding:42px 30px;border-radius:0 24px 0 0;margin-left:-20px;max-width:calc(100% + 20px)}
  .two-col,.patent-grid,.contact-card{grid-template-columns:1fr;gap:30px}.benefit-grid,.application-grid{grid-template-columns:1fr 1fr}.credibility-strip{grid-template-columns:1fr 1fr}.credibility-strip div:nth-child(2){border-right:0}.credibility-strip div:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.16)}
  .light-section:after{background:rgba(255,255,255,.86)}.contact-card{padding:42px 30px}.footer-grid{grid-template-columns:1fr;text-align:left}
}
@media(max-width:560px){
  .wrap{width:min(100% - 28px,1160px)}.brand img{width:170px}.nav-wrap{height:70px}.site-nav{top:70px}
  .hero{min-height:610px}.hero-card{padding:38px 24px;margin-left:-14px}.lede{font-size:19px}.hero-actions{flex-direction:column;align-items:stretch}.btn{width:100%}
  .intro,.spectrum,.benefits,.applications,.patents{padding:72px 0}.benefit-grid,.application-grid,.wavelength-row{grid-template-columns:1fr}.benefit-card{min-height:auto}.credibility-strip{grid-template-columns:1fr}.credibility-strip div{border-right:0!important;border-bottom:1px solid rgba(255,255,255,.16)}.credibility-strip div:last-child{border-bottom:0}.contact{padding-bottom:70px}
}