/* Nova Vascular — design system */
:root{
  --navy:#183B73; --navy-deep:#0B1B38; --navy-ink:#071226;
  --blue:#1E75B9; --teal:#168CA3; --ruby:#B3293A;
  --paper:#F6F9FC; --white:#FFFFFF;
  --ink:#101826; --dim:#5B6B80; --line:#E3EAF2;
  --glow:rgba(30,117,185,.35);
  --radius:18px;
  --font:'Inter',-apple-system,system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--white);
     -webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 28px}

/* ---------- nav ---------- */
.nav{position:fixed;inset:0 0 auto 0;z-index:50;transition:background .35s,box-shadow .35s;padding:18px 0}
.nav.scrolled{background:rgba(7,18,38,.82);backdrop-filter:blur(14px);box-shadow:0 1px 0 rgba(255,255,255,.06);padding:12px 0}
.nav .wrap{display:flex;align-items:center;justify-content:space-between}
.nav .logo{height:34px;filter:brightness(0) invert(1)}
.nav ul{display:flex;gap:30px;list-style:none;align-items:center}
.nav a{color:rgba(255,255,255,.78);font-size:14px;font-weight:500;letter-spacing:.01em;transition:color .2s}
.nav a:hover{color:#fff}
.nav .cta{background:var(--blue);color:#fff;padding:9px 20px;border-radius:99px;font-weight:600;transition:background .2s,transform .2s}
.nav .cta:hover{background:#2486d2;transform:translateY(-1px)}
@media(max-width:820px){.nav ul li:not(:last-child){display:none}}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100vh;background:
  radial-gradient(1200px 700px at 75% 20%,#15356b 0%,transparent 55%),
  radial-gradient(900px 600px at 15% 85%,#0e2f4f 0%,transparent 60%),
  linear-gradient(165deg,#0B1B38 0%,#071226 70%);
  color:#fff;display:flex;align-items:center;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:
  radial-gradient(2px 2px at 20% 30%,rgba(255,255,255,.25),transparent),
  radial-gradient(1.5px 1.5px at 70% 60%,rgba(255,255,255,.18),transparent),
  radial-gradient(1px 1px at 40% 80%,rgba(255,255,255,.15),transparent);
  pointer-events:none}
#hero3d{position:absolute;inset:0;z-index:1;width:100%;height:100%}
.hero .scrim{position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(94deg,rgba(7,18,38,.88) 26%,rgba(7,18,38,.35) 46%,transparent 62%)}
@media(max-width:1100px){.hero .scrim{display:none}}
@media(max-width:1100px){
  .hero{flex-direction:column;align-items:stretch}
  #hero3d{position:relative;inset:auto;width:100%;height:44vh;order:2;margin-top:-30px}
  .hero .content{padding:110px 0 10px}
  .scroll-hint{display:none}
}
.hero .content{position:relative;z-index:2;max-width:600px;padding:120px 0 80px;pointer-events:none}
.hero .content a,.hero .content .row{pointer-events:auto}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:#7FC4E8;margin-bottom:22px;
  border:1px solid rgba(127,196,232,.35);padding:7px 16px;border-radius:99px;background:rgba(30,117,185,.12)}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:#39D98A;box-shadow:0 0 8px #39D98A}
.hero h1{font-size:clamp(44px,6.5vw,76px);line-height:1.02;font-weight:700;letter-spacing:-.03em}
.hero h1 .grad{background:linear-gradient(92deg,#9CD2F2 0%,#4DA3DD 45%,#2FB3C9 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{margin-top:24px;font-size:19px;line-height:1.6;color:rgba(255,255,255,.72);max-width:520px;font-weight:400}
.hero .row{margin-top:38px;display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 30px;border-radius:99px;font-weight:600;font-size:15.5px;transition:transform .25s,box-shadow .25s,background .25s}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--teal));color:#fff;box-shadow:0 8px 30px var(--glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 40px var(--glow)}
.btn-ghost{border:1px solid rgba(255,255,255,.25);color:#fff;background:rgba(255,255,255,.04);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.1)}
.hero .pills{margin-top:46px;display:flex;gap:10px;flex-wrap:wrap}
.pill{font-size:13px;font-weight:600;padding:8px 16px;border-radius:99px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.13);color:rgba(255,255,255,.85);backdrop-filter:blur(6px)}
.scroll-hint{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);z-index:2;
  color:rgba(255,255,255,.45);font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;
  display:flex;flex-direction:column;align-items:center;gap:10px;animation:bob 2.4s ease-in-out infinite}
.scroll-hint::after{content:"";width:1px;height:36px;background:linear-gradient(180deg,rgba(255,255,255,.5),transparent)}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}

/* ---------- 3D feature tour ---------- */
.tour{position:relative;background:linear-gradient(180deg,#071226 0%,#0B1B38 55%,#0E2240 100%);color:#fff}
.tour-sticky{position:sticky;top:0;height:100vh;overflow:hidden}
#tour3d{position:absolute;inset:0;width:100%;height:100%}
.tour-panel{position:absolute;z-index:3;max-width:380px;left:max(28px,calc(50% - 570px));top:50%;transform:translateY(-50%)}
.tour-step{position:absolute;inset:auto auto auto 0;width:100%;opacity:0;transform:translateY(26px);transition:opacity .5s,transform .5s;pointer-events:none}
.tour-step.active{opacity:1;transform:translateY(0)}
.tour-step .num{font-size:13px;font-weight:700;color:#2FB3C9;letter-spacing:.18em;margin-bottom:14px}
.tour-step h3{font-size:32px;font-weight:700;letter-spacing:-.02em;line-height:1.12;margin-bottom:14px}
.tour-step p{font-size:16px;line-height:1.65;color:rgba(255,255,255,.68)}
.tour-progress{position:absolute;z-index:3;right:max(28px,calc(50% - 570px));top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:12px}
.tour-progress span{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.18);transition:background .3s,transform .3s}
.tour-progress span.on{background:#2FB3C9;transform:scale(1.4);box-shadow:0 0 12px rgba(47,179,201,.7)}
.tour-track{height:480vh}
@media(max-width:900px){
  .tour-panel{left:24px;right:24px;max-width:none;top:auto;bottom:48px;transform:none;height:260px}
  .tour-step{bottom:0;top:auto}
  .tour-step h3{font-size:23px;margin-bottom:10px}
  .tour-step p{font-size:14.5px}
  .tour-sticky::after{content:"";position:absolute;inset:auto 0 0 0;height:55%;z-index:2;pointer-events:none;
    background:linear-gradient(180deg,transparent,rgba(7,18,38,.92) 75%)}
  .tour-progress{top:auto;bottom:20px;right:24px;transform:none;flex-direction:row}
}

/* ---------- light sections ---------- */
.section{padding:110px 0}
.section.alt{background:var(--paper)}
.kicker{font-size:12.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--teal);margin-bottom:16px}
.section h2{font-size:clamp(30px,4vw,44px);font-weight:700;letter-spacing:-.025em;line-height:1.1;color:var(--navy-ink);max-width:640px}
.section .lede{margin-top:18px;font-size:17.5px;line-height:1.65;color:var(--dim);max-width:620px}
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s cubic-bezier(.2,.6,.2,1),transform .7s cubic-bezier(.2,.6,.2,1)}
.reveal.in{opacity:1;transform:none}

/* stats band */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-top:60px}
.stat{background:#fff;padding:34px 30px}
.stat .v{font-size:38px;font-weight:700;letter-spacing:-.03em;color:var(--navy)}
.stat .v em{font-style:normal;font-size:20px;color:var(--teal)}
.stat .l{margin-top:6px;font-size:13.5px;color:var(--dim);font-weight:500}

/* application cards */
.apps{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px;margin-top:54px}
.app{position:relative;border-radius:var(--radius);padding:34px 28px;background:#fff;border:1px solid var(--line);
  transition:transform .35s,box-shadow .35s;overflow:hidden}
.app:hover{transform:translateY(-6px);box-shadow:0 24px 60px rgba(16,40,80,.12)}
.app::before{content:"";position:absolute;inset:0 auto 0 0;width:4px;background:var(--ac,var(--teal))}
.app .ic{width:48px;height:48px;border-radius:13px;display:grid;place-items:center;margin-bottom:20px;
  background:color-mix(in srgb,var(--ac,var(--teal)) 12%,white);color:var(--ac,var(--teal))}
.app h3{font-size:18.5px;font-weight:700;color:var(--navy-ink);letter-spacing:-.01em;margin-bottom:9px}
.app p{font-size:14.5px;line-height:1.6;color:var(--dim)}

/* spec table */
.spec-card{margin-top:54px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:0 18px 50px rgba(16,40,80,.07)}
.spec-head{background:linear-gradient(135deg,var(--navy),#10294f);color:#fff;padding:26px 34px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.spec-head h3{font-size:20px;font-weight:700;letter-spacing:-.01em}
.spec-head .tag{font-size:12px;font-weight:600;background:rgba(255,255,255,.14);padding:6px 14px;border-radius:99px}
table.specs{width:100%;border-collapse:collapse;font-size:14.5px}
table.specs th{Text-align:left;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--dim);padding:16px 34px;border-bottom:1px solid var(--line);background:var(--paper)}
table.specs td{padding:15px 34px;border-bottom:1px solid var(--line);color:var(--ink)}
table.specs tr:last-child td{border-bottom:none}
table.specs td.b{font-weight:600;color:var(--navy)}

/* gallery */
.gallery{display:grid;grid-template-columns:1.4fr 1fr;gap:18px;margin-top:54px}
.shot{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#fff;position:relative}
.shot img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.shot.contain{background:linear-gradient(140deg,#EAF3FB,#D6E8F5);display:grid;place-items:center}
.shot.contain img{object-fit:contain;padding:26px;max-height:420px}
.shot:hover img{transform:scale(1.035)}
.shot .cap{position:absolute;left:0;right:0;bottom:0;padding:18px 22px;font-size:13px;font-weight:600;color:#fff;
  background:linear-gradient(180deg,transparent,rgba(7,18,38,.78))}
@media(max-width:760px){.gallery{grid-template-columns:1fr}}

/* compliance */
.note{margin-top:54px;border-left:4px solid var(--teal);background:#fff;border-radius:0 var(--radius) var(--radius) 0;
  padding:28px 32px;font-size:14.5px;line-height:1.7;color:var(--dim);border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.note b{color:var(--navy-ink)}

/* CTA band */
.cta-band{position:relative;background:
  radial-gradient(800px 400px at 80% 0%,#1a3f7d 0%,transparent 60%),
  linear-gradient(150deg,#0B1B38,#071226);color:#fff;padding:110px 0;overflow:hidden}
.cta-band h2{color:#fff;font-size:clamp(30px,4vw,46px)}
.cta-band .lede{color:rgba(255,255,255,.66)}
.cta-band .row{margin-top:38px;display:flex;gap:14px;flex-wrap:wrap}

/* footer */
footer{background:var(--navy-ink);color:rgba(255,255,255,.55);padding:56px 0 40px;font-size:13.5px}
footer .wrap{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:center}
footer img{height:30px;opacity:.9}
footer .fine{max-width:640px;line-height:1.65;font-size:12px;color:rgba(255,255,255,.38);margin-top:18px}