:root{
  --navy:#06131f;
  --navy-2:#0b1d2f;
  --ink:#0b1523;
  --muted:#4d5e71;
  --line:#d9e2eb;
  --panel:#f6f8fb;
  --white:#ffffff;
  --blue:#0b86f4;
  --shell:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;color:var(--ink);background:#fff}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
.shell{width:min(var(--shell), calc(100% - 48px));margin:auto}

.site-header{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:32px;height:76px;background:#06131f;color:#fff;padding:0 max(3vw,24px);border-bottom:1px solid rgba(255,255,255,.08)}
.logo{display:flex;align-items:center;gap:12px;min-width:300px}
.logo > strong{font-size:47px;letter-spacing:-.08em;line-height:1;font-weight:900}
.logo span{font-size:14px;font-weight:800;letter-spacing:.14em;line-height:1.05}
.logo small{font-size:10px;font-weight:600;letter-spacing:.22em}
.desktop-nav{display:flex;gap:28px;align-items:center;height:100%;margin-left:auto}
.desktop-nav a{display:flex;align-items:center;font-size:13px;color:#dfe7ef;border-bottom:3px solid transparent}
.desktop-nav a.active{color:#57aeff;border-bottom-color:#0b86f4}
.header-cta{background:var(--blue);padding:11px 18px;border-radius:6px;font-size:13px;font-weight:700;white-space:nowrap}

.eyebrow{margin:0 0 14px;font-size:12px;letter-spacing:.14em;font-weight:800;color:#dce7f1;text-transform:uppercase}
.eyebrow.dark{color:#496075}
h1,h2,h3,h4,p{margin:0}
h1{font-size:clamp(2.8rem, 5vw, 4.15rem);line-height:1.02;letter-spacing:-.045em;margin-bottom:16px;max-width:680px}
h2{font-size:clamp(2rem, 4vw, 3.2rem);line-height:1.06;letter-spacing:-.04em;margin-bottom:18px}
h3{font-size:1.42rem;line-height:1.18;letter-spacing:-.02em}
p{line-height:1.6}

.hero{position:relative;min-height:610px;background:var(--navy);color:#fff;overflow:hidden}
.hero-photo{position:absolute;inset:0 0 0 auto;width:62%;background:url('assets/hero-optical-bench.jpg') center/cover no-repeat}
.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,#071521 0%,#071521 38%,rgba(7,21,33,.90) 53%,rgba(7,21,33,.34) 76%,rgba(7,21,33,.08) 100%)}
.hero-content{position:relative;padding:84px 0 54px}
.hero-lead{font-size:1.36rem;line-height:1.42;font-weight:650;max-width:710px;margin-bottom:12px}
.hero-copy{max-width:640px;color:#c1ccd7;font-size:1.02rem;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.button{display:inline-flex;align-items:center;gap:12px;border-radius:8px;padding:13px 18px;font-size:14px;font-weight:760}
.button.primary{background:var(--blue);color:#fff}
.button.ghost{border:1px solid rgba(255,255,255,.22);color:#fff}
.button.light{border:1px solid #9fb2c5;color:#0b86f4;background:#fff}
.hero-benefits{display:grid;grid-template-columns:repeat(3, minmax(0,1fr));gap:26px;margin-top:56px;max-width:980px}
.benefit{display:flex;gap:14px;align-items:flex-start;color:#e2eaf1;font-size:.98rem;line-height:1.45}
.benefit-icon{font-size:30px;line-height:1;color:#fff;margin-top:2px;flex:0 0 auto}

.problem{display:grid;grid-template-columns:1.12fr .88fr;gap:56px;padding:92px 0;border-bottom:1px solid #edf1f4}
.problem-copy{font-size:1.05rem;color:var(--muted);padding-top:10px}
.problem-copy p + p{margin-top:16px}
.problem-copy strong{color:var(--ink)}

.services{background:linear-gradient(180deg,#f8fafc,#fff);padding:92px 0}
.section-heading{max-width:760px;margin-bottom:34px}
.section-heading.narrow{max-width:720px}
.cards{display:grid;grid-template-columns:repeat(3, minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.card{background:#fff;padding:30px;min-height:235px}
.service-icon{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;background:#eff5fb;color:#0b86f4;font-size:22px;margin-bottom:18px}
.card h3{margin-bottom:10px;font-size:1.28rem}
.card p{color:var(--muted);font-size:.98rem}

.process{padding:92px 0;background:#fff;border-top:1px solid #edf1f4}
.process-grid{display:grid;grid-template-columns:320px 1fr;gap:42px;align-items:start}
.process-intro{padding:18px 0}
.process-intro h3{margin-bottom:14px}
.process-intro p{color:var(--muted);font-size:1rem}
.process-intro p + p{margin-top:14px}
.stages{display:grid;grid-template-columns:repeat(3, minmax(0,1fr));gap:18px}
.stage{border:1px solid var(--line);padding:14px;background:#fff;border-radius:12px;box-shadow:0 6px 22px rgba(8,20,33,.04)}
.stage img,.support-tile{width:100%;height:116px;object-fit:cover;border-radius:8px;margin-bottom:12px}
.support-tile{display:grid;place-items:center;background:linear-gradient(180deg,#183049,#0d2235);color:#fff;font-size:56px}
.stage h4{font-size:1rem;line-height:1.3;margin-bottom:8px}
.stage p{font-size:.92rem;color:var(--muted);line-height:1.5}

.applications{padding:36px 0;background:#0a1927;color:#fff}
.application-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.application-tags span{padding:8px 12px;border-radius:999px;border:1px solid #34495c;color:#dfe8f0;font-size:.93rem}

.example{padding:92px 0;background:#f7f9fc}
.example-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.example-grid p{color:var(--muted);font-size:1.03rem;margin-bottom:20px}
.example-art{display:flex;justify-content:center}
.tech-panel{position:relative;width:min(100%, 470px);height:270px;border-radius:18px;overflow:hidden;background:linear-gradient(180deg,#16324c 0%,#0f2235 54%,#091420 100%);box-shadow:0 22px 50px rgba(10,20,30,.18)}
.tech-sky{position:absolute;inset:0;background:linear-gradient(180deg,#87a7be 0%,#37526a 34%,#15293c 56%,#0f2235 100%)}
.tech-brand{position:absolute;left:28px;bottom:78px;display:flex;align-items:center;gap:10px;color:#fff}
.tech-brand b{font-size:60px;letter-spacing:-.09em;line-height:1}
.tech-brand span{font-size:14px;font-weight:800;letter-spacing:.14em;line-height:1.05}
.tech-brand small{font-size:9px;letter-spacing:.18em}
.tech-panel p{position:absolute;left:28px;bottom:28px;color:#fff;font-size:14px;font-weight:760;letter-spacing:.08em;margin:0;max-width:320px}

.cta{position:relative;min-height:340px;background:#08131f;color:#fff;overflow:hidden}
.cta-photo{position:absolute;inset:0;background:url('assets/cta-shelter-sunset.png') center/cover no-repeat}
.cta-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,19,31,.88) 0%,rgba(7,19,31,.78) 34%,rgba(7,19,31,.48) 58%,rgba(7,19,31,.18) 78%,rgba(7,19,31,.06) 100%)}
.cta-content{position:relative;display:flex;align-items:center;min-height:340px;padding:40px 0}
.cta-copy{max-width:620px}
.cta-copy p:not(.eyebrow){color:#d0dae3;font-size:1rem;margin-bottom:22px}

footer{background:#04101a;color:#8496a6}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 0;font-size:.88rem}
.footer-inner div{display:flex;gap:20px;flex-wrap:wrap}

.legal{padding:70px 0 100px;background:#f7f9fb;min-height:calc(100vh - 136px)}
.legal h1{font-size:3.2rem;margin-bottom:24px}
.legal-box{background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px;max-width:900px}
.legal-box p{margin:0 0 18px}
.legal-box p:last-child{margin-bottom:0}
.legal-note{margin-top:18px;max-width:900px;color:#734f00;background:#fff6d8;border:1px solid #ead58d;border-radius:10px;padding:14px 16px}

@media (max-width: 1080px){
  .desktop-nav{display:none}
  .logo{min-width:0}
  .hero{min-height:700px}
  .hero-photo{width:72%}
  .problem,.process-grid,.example-grid{grid-template-columns:1fr}
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width: 760px){
  .shell{width:calc(100% - 34px)}
  .site-header{height:70px;padding:0 18px;gap:18px}
  .logo > strong{font-size:39px}
  .logo span{font-size:12px}
  .header-cta{font-size:0;padding:10px 12px}
  .header-cta::before{content:'✉';font-size:15px}
  h1{font-size:2.55rem}
  .hero{min-height:760px}
  .hero-photo{width:100%;opacity:.55}
  .hero-shade{background:linear-gradient(180deg,rgba(7,21,33,.58),#071521 56%,#071521 100%)}
  .hero-content{padding:56px 0 40px}
  .hero-lead{font-size:1.16rem}
  .hero-benefits{grid-template-columns:1fr;gap:18px;margin-top:34px}
  .problem{padding:68px 0;gap:24px}
  .services,.process,.example{padding:68px 0}
  .cards{grid-template-columns:1fr}
  .stages{grid-template-columns:1fr}
  .example-grid{gap:28px}
  .cta,.cta-content{min-height:400px}
  .cta-overlay{background:linear-gradient(180deg,rgba(7,19,31,.55),rgba(7,19,31,.80) 45%,rgba(7,19,31,.88) 100%)}
  .cta-copy{max-width:100%}
  .footer-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width: 460px){
  .logo span{display:none}
}


/* V4 refinements */
.section-copy{color:var(--muted);font-size:1.04rem;max-width:760px;margin-top:8px}
.fit-band{background:#eef4f9;border-top:1px solid #e3ebf2;border-bottom:1px solid #dde7ef}
.fit-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0}
.fit-grid article{padding:34px 30px;border-right:1px solid #d6e1ea}
.fit-grid article:first-child{padding-left:0}
.fit-grid article:last-child{border-right:0;padding-right:0}
.fit-grid span{display:block;color:#0b86f4;font-size:.78rem;font-weight:800;letter-spacing:.14em;margin-bottom:12px}
.fit-grid h3{font-size:1.16rem;margin-bottom:8px}
.fit-grid p{color:var(--muted);font-size:.95rem;line-height:1.55}
.principle-box{margin-top:24px;padding:18px 20px;border-left:3px solid #0b86f4;background:#f4f8fc}
.principle-box strong{display:block;margin-bottom:6px}
.principle-box p{font-size:.94rem}
.applications-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:center}
.applications h2{color:#fff;font-size:2.15rem;margin:0}
.applications .application-tags{margin-top:0;justify-content:flex-start}
@media(max-width:1080px){.fit-grid{grid-template-columns:1fr}.fit-grid article{border-right:0;border-bottom:1px solid #d6e1ea;padding:28px 0}.fit-grid article:last-child{border-bottom:0}.applications-grid{grid-template-columns:1fr}.applications .application-tags{margin-top:6px}}

.header-email{font-size:13px;font-weight:700;color:#dfe7ef;white-space:nowrap;margin-left:auto}
.email-display,.contact-email{display:inline-flex;align-items:center;border:1px solid rgba(255,255,255,.26);border-radius:8px;padding:13px 18px;font-size:14px;font-weight:760;color:#fff;background:rgba(255,255,255,.04)}
.contact-email{font-size:1.05rem;background:rgba(255,255,255,.08)}
@media(max-width:760px){.header-email{font-size:11px}.email-display,.contact-email{font-size:13px}}
@media(max-width:520px){.header-email{display:none}}


/* Contact popup */
button{font:inherit}
.contact-trigger{border:0;cursor:pointer}
.contact-modal{
  position:fixed;
  inset:0;
  z-index:200;
  display:grid;
  place-items:center;
  padding:24px;
  visibility:hidden;
  opacity:0;
  transition:opacity .18s ease, visibility .18s ease;
}
.contact-modal.is-open{
  visibility:visible;
  opacity:1;
}
.contact-modal-backdrop{
  position:absolute;
  inset:0;
  background:rgba(3,12,20,.72);
  backdrop-filter:blur(4px);
}
.contact-modal-card{
  position:relative;
  z-index:1;
  width:min(520px,100%);
  background:#fff;
  color:var(--ink);
  border-radius:16px;
  padding:34px;
  box-shadow:0 28px 80px rgba(0,0,0,.28);
}
.contact-modal-card h2{
  font-size:2rem;
  margin-bottom:12px;
}
.contact-modal-copy{
  color:var(--muted);
  margin-bottom:18px;
}
.contact-modal-close{
  position:absolute;
  top:12px;
  right:14px;
  width:38px;
  height:38px;
  border:0;
  border-radius:50%;
  background:#eef3f7;
  color:#24384a;
  font-size:24px;
  line-height:1;
  cursor:pointer;
}
.contact-address-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#f7f9fb;
  padding:12px 12px 12px 16px;
}
.contact-address-row span{
  font-weight:750;
  overflow-wrap:anywhere;
}
.copy-email{
  border:0;
  border-radius:7px;
  background:var(--blue);
  color:#fff;
  padding:9px 13px;
  font-weight:750;
  cursor:pointer;
}
.copy-status{
  min-height:1.4em;
  margin-top:10px;
  color:#526274;
  font-size:.88rem;
}
.modal-open{overflow:hidden}
@media(max-width:520px){
  .contact-modal-card{padding:28px 20px 22px}
  .contact-address-row{align-items:stretch;flex-direction:column}
  .copy-email{width:100%}
}

.contact-modal[hidden]{display:none !important;}