/* ============================================================
   OptiVision IOL — shared design system
   Brand gradient: violet #6A2DB8 -> royal blue #0B57D0
   (No Cuba imagery / no star — per client request)
   ============================================================ */
:root{
  --violet:#6A2DB8; --violet-2:#7E3BD6; --blue:#0B57D0; --blue-2:#0A45A8;
  --ink:#0A0E23; --ink-2:#121734;
  --paper:#F6F8FC; --paper-2:#EEF2F9; --line:#E2E8F4;
  --text:#0E1430; --muted:#586079; --muted-light:rgba(255,255,255,.74);
  --export:#C0392B;
  --grad:linear-gradient(115deg,var(--violet) 0%,#5b34c9 45%,var(--blue) 100%);
  --grad-soft:linear-gradient(115deg,rgba(106,45,184,.14),rgba(11,87,208,.14));
  --shadow-sm:0 2px 10px rgba(10,14,35,.06);
  --shadow-md:0 18px 50px rgba(10,14,35,.12);
  --shadow-lg:0 40px 90px rgba(10,14,35,.22);
  --r:18px; --r-lg:28px; --maxw:1200px; --ease:cubic-bezier(.22,1,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{font-family:"Inter",system-ui,-apple-system,sans-serif;color:var(--text);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,h4,.display{font-family:"Bricolage Grotesque","Inter",sans-serif;font-weight:700;line-height:1.05;letter-spacing:-.02em}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
section{position:relative}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.eyebrow{display:inline-flex;align-items:center;gap:11px;font-size:.78rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--violet)}
.eyebrow.on-dark{color:#bfd0ff}
.eyebrow .bar{width:26px;height:2px;background:var(--grad);border-radius:2px}
.eyebrow.on-dark .bar{background:linear-gradient(90deg,#9B6BFF,#5BA8FF)}

/* buttons */
.btn{position:relative;display:inline-flex;align-items:center;gap:10px;font-weight:600;font-size:.98rem;border:none;cursor:pointer;padding:15px 26px;border-radius:999px;transition:transform .35s var(--ease),box-shadow .35s var(--ease),background .3s;will-change:transform}
.btn svg{width:19px;height:19px;flex:none}
.btn-wa{background:#25D366;color:#04210f;box-shadow:0 12px 30px rgba(37,211,102,.35)}
.btn-wa:hover{box-shadow:0 18px 44px rgba(37,211,102,.5)}
.btn-grad{background:var(--grad);color:#fff;box-shadow:0 12px 34px rgba(75,45,180,.4)}
.btn-grad:hover{box-shadow:0 18px 50px rgba(75,45,180,.55)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.28);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.16)}
.btn-outline{background:transparent;color:var(--violet);border:1.5px solid rgba(106,45,184,.3)}
.btn-outline:hover{background:var(--grad-soft)}

/* nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:90;display:flex;align-items:center;justify-content:space-between;padding:18px clamp(20px,4vw,46px);transition:background .4s var(--ease),padding .4s var(--ease),box-shadow .4s,border-color .4s;border-bottom:1px solid transparent}
.nav.solid{background:rgba(255,255,255,.85);backdrop-filter:saturate(160%) blur(14px);box-shadow:var(--shadow-sm);border-color:var(--line);padding-top:12px;padding-bottom:12px}
.nav__brand{display:flex;align-items:center;gap:12px;z-index:2}
.nav__brand img{height:34px;width:auto;transition:.4s}
.nav__brand .logo-dark{display:none}
.nav.solid .nav__brand .logo-light{display:none}
.nav.solid .nav__brand .logo-dark{display:block}
.nav__name{font-family:"Bricolage Grotesque";font-weight:700;font-size:1.16rem;letter-spacing:-.01em;color:#fff;transition:color .4s;white-space:nowrap}
.nav__name b{font-weight:800}
.nav.solid .nav__name{color:var(--ink)}
.nav__links{display:flex;align-items:center;gap:30px}
.nav__links a{font-size:.93rem;font-weight:500;color:rgba(255,255,255,.9);position:relative;transition:color .3s}
.nav.solid .nav__links a{color:var(--text)}
.nav__links a::after{content:"";position:absolute;left:0;bottom:-6px;height:2px;width:0;background:var(--grad);border-radius:2px;transition:width .3s var(--ease)}
.nav__links a:hover::after,.nav__links a.is-cta::after{width:100%}
.nav__links a.is-cta{color:#fff;background:var(--grad);padding:8px 16px;border-radius:999px}
.nav.solid .nav__links a.is-cta{color:#fff}
.nav__links a.is-cta::after{display:none}
.nav__right{display:flex;align-items:center;gap:16px;z-index:2}
.lang{display:flex;border:1px solid rgba(255,255,255,.4);border-radius:999px;overflow:hidden;font-size:.78rem;font-weight:600}
.nav.solid .lang{border-color:var(--line)}
.lang button{background:transparent;border:none;cursor:pointer;padding:7px 12px;color:rgba(255,255,255,.85);transition:.25s}
.nav.solid .lang button{color:var(--muted)}
.lang button.active{background:var(--grad);color:#fff}
.nav__cta{padding:11px 20px;font-size:.9rem}
.nav__burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;z-index:2}
.nav__burger span{width:24px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.nav.solid .nav__burger span{background:var(--ink)}
.mobile-menu{position:fixed;inset:0;z-index:80;background:var(--ink);display:flex;flex-direction:column;justify-content:center;gap:8px;padding:40px;transform:translateY(-100%);transition:transform .5s var(--ease);visibility:hidden}
.mobile-menu.open{transform:translateY(0);visibility:visible}
.mobile-menu a{font-family:"Bricolage Grotesque";font-size:1.9rem;font-weight:600;color:#fff;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.1)}

/* hero (generic) */
.hero{min-height:100svh;display:flex;align-items:flex-end;position:relative;overflow:hidden;color:#fff;padding-bottom:7vh}
.hero__media{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.hero__overlay{position:absolute;inset:0;z-index:1;background:radial-gradient(120% 90% at 80% 10%,rgba(106,45,184,.4),transparent 60%),linear-gradient(180deg,rgba(10,14,35,.6) 0%,rgba(10,14,35,.32) 38%,rgba(10,14,35,.82) 100%)}
.hero__grain{position:absolute;inset:0;z-index:2;opacity:.5;mix-blend-mode:overlay;pointer-events:none}
.hero__content{position:relative;z-index:4;padding:0 clamp(20px,4vw,46px);max-width:1180px;margin:0 auto;width:100%}
.hero h1{font-size:clamp(2.6rem,7vw,5.9rem);font-weight:800;max-width:17ch;margin:.35em 0 .5em;letter-spacing:-.03em}
.hero h1 .word{display:inline-block;overflow:hidden;vertical-align:top}
.hero h1 .word>span{display:inline-block;transform:translateY(110%);transition:transform .9s var(--ease)}
.hero.ready h1 .word>span{transform:translateY(0)}
.hero__sub{font-size:clamp(1.02rem,1.5vw,1.2rem);max-width:55ch;color:rgba(255,255,255,.9);opacity:0;transform:translateY(20px);transition:.9s var(--ease) .5s}
.hero.ready .hero__sub{opacity:1;transform:none}
.hero__eyebrow{opacity:0;transform:translateY(16px);transition:.8s var(--ease) .15s}
.hero.ready .hero__eyebrow{opacity:1;transform:none}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px;opacity:0;transform:translateY(20px);transition:.9s var(--ease) .65s}
.hero.ready .hero__cta{opacity:1;transform:none}
.hero__scroll{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);z-index:4;display:flex;flex-direction:column;align-items:center;gap:8px;font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.7)}
.hero__scroll .mouse{width:24px;height:38px;border:1.5px solid rgba(255,255,255,.6);border-radius:14px;position:relative}
.hero__scroll .mouse::after{content:"";position:absolute;top:7px;left:50%;transform:translateX(-50%);width:4px;height:7px;background:#fff;border-radius:3px;animation:scroll 1.7s var(--ease) infinite}
@keyframes scroll{0%{opacity:0;transform:translate(-50%,0)}40%{opacity:1}80%{opacity:0;transform:translate(-50%,12px)}100%{opacity:0}}
.hero__ring{position:absolute;z-index:3;top:13%;right:6%;width:min(33vw,400px);aspect-ratio:1;pointer-events:none;opacity:0;transition:opacity 1.4s ease 1s}
.hero.ready .hero__ring{opacity:.85}
@media(max-width:860px){.hero__ring{opacity:.45!important;right:-12%;top:8%}}

/* marquee */
.marquee{background:var(--ink);color:#fff;padding:22px 0;overflow:hidden;white-space:nowrap;border-top:1px solid rgba(255,255,255,.08)}
.marquee__track{display:inline-flex;gap:46px;align-items:center;animation:marq 34s linear infinite}
.marquee:hover .marquee__track{animation-play-state:paused}
.marquee span{font-family:"Bricolage Grotesque";font-size:1.3rem;font-weight:600;color:rgba(255,255,255,.5);display:inline-flex;align-items:center;gap:46px}
.marquee span::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--grad)}
@keyframes marq{to{transform:translateX(-50%)}}

/* sections + reveal */
.sec{padding:clamp(80px,11vw,150px) 0}
.sec-head{max-width:760px;margin-bottom:56px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head h2{font-size:clamp(2rem,4.6vw,3.5rem);margin:.4em 0 .35em;font-weight:700}
.sec-head p{font-size:1.08rem;color:var(--muted)}
.reveal{opacity:0;transform:translateY(34px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}.reveal.d5{transition-delay:.4s}
.focus-in{filter:blur(14px);opacity:0;transform:scale(.985);transition:filter 1s var(--ease),opacity 1s var(--ease),transform 1s var(--ease)}
.focus-in.in{filter:blur(0);opacity:1;transform:none}

/* CTA band */
.cta{position:relative;overflow:hidden;color:#fff;text-align:center;padding:clamp(80px,12vw,150px) 0}
.cta canvas.aurora{position:absolute;inset:0;z-index:0}
.cta__bg{position:absolute;inset:0;background:var(--ink);z-index:-1}
.cta .wrap{position:relative;z-index:2}
.cta h2{font-size:clamp(2.1rem,5.5vw,4rem);max-width:18ch;margin:0 auto .3em;font-weight:800}
.cta p{font-size:1.12rem;color:var(--muted-light);max-width:52ch;margin:0 auto 36px}

/* footer */
.footer{background:#06091a;color:rgba(255,255,255,.7);padding:72px 0 36px}
.footer__top{display:grid;grid-template-columns:1.6fr 1fr 1.2fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer__brand img{height:38px;margin-bottom:18px}
.footer__brand p{font-size:.92rem;max-width:38ch}
.footer h4{color:#fff;font-family:"Bricolage Grotesque";font-size:1rem;margin-bottom:16px;font-weight:600}
.footer ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer ul a{font-size:.92rem;transition:color .3s}
.footer ul a:hover{color:#fff}
.footer__contact a{display:flex;align-items:center;gap:10px;font-size:.92rem;margin-bottom:12px}
.footer__contact svg{width:17px;height:17px;color:var(--violet-2);flex:none}
.footer__bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding-top:28px;font-size:.82rem;color:rgba(255,255,255,.45)}

/* floating WhatsApp */
.fab{position:fixed;right:22px;bottom:22px;z-index:70;width:60px;height:60px;border-radius:50%;background:#25D366;display:flex;align-items:center;justify-content:center;box-shadow:0 14px 34px rgba(37,211,102,.5);transition:transform .35s var(--ease)}
.fab:hover{transform:scale(1.08)}
.fab svg{width:32px;height:32px;color:#fff}
.fab::before{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid #25D366;animation:pulse 2.4s ease-out infinite}
@keyframes pulse{0%{transform:scale(1);opacity:.7}100%{transform:scale(1.7);opacity:0}}

/* pointer glow */
.glow{position:fixed;width:420px;height:420px;border-radius:50%;pointer-events:none;z-index:1;transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(106,45,184,.10),transparent 65%);opacity:0;transition:opacity .4s;mix-blend-mode:multiply}

/* export-only badge */
.export-badge{display:inline-flex;align-items:center;gap:7px;font-size:.7rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--export);background:rgba(192,57,43,.08);border:1px solid rgba(192,57,43,.32);padding:5px 11px;border-radius:999px}
.export-badge svg{width:13px;height:13px}
.export-badge.on-dark{color:#ff9a8d;background:rgba(255,120,100,.12);border-color:rgba(255,120,100,.4)}

/* modal (doctor product detail flyer) */
.modal{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;visibility:hidden;transition:opacity .4s var(--ease),visibility .4s}
.modal.open{opacity:1;visibility:visible}
.modal__scrim{position:absolute;inset:0;background:rgba(6,9,26,.7);backdrop-filter:blur(6px)}
.modal__card{position:relative;width:min(720px,100%);max-height:90vh;overflow-y:auto;background:#fff;border-radius:var(--r-lg);box-shadow:var(--shadow-lg);transform:translateY(30px) scale(.97);transition:transform .5s var(--ease);z-index:1}
.modal.open .modal__card{transform:none}
.modal__head{position:relative;background:var(--grad);color:#fff;padding:30px 34px;border-radius:var(--r-lg) var(--r-lg) 0 0}
.modal__head .brand{display:flex;align-items:center;gap:10px;font-family:"Bricolage Grotesque";font-weight:700;opacity:.92;margin-bottom:14px}
.modal__head .brand img{height:24px}
.modal__head h3{font-size:1.7rem;font-weight:800}
.modal__head .sub{opacity:.9;font-size:.95rem;margin-top:6px}
.modal__close{position:absolute;top:18px;right:18px;width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.4);background:rgba(255,255,255,.12);color:#fff;cursor:pointer;font-size:1.2rem;display:flex;align-items:center;justify-content:center;transition:.25s}
.modal__close:hover{background:rgba(255,255,255,.25)}
.modal__body{padding:30px 34px 34px}
.modal__meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.modal__meta .chip{font-size:.78rem;font-weight:600;background:var(--paper-2);border:1px solid var(--line);padding:6px 13px;border-radius:999px;color:var(--muted)}
.spec{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.spec:last-of-type{border-bottom:none}
.spec__ic{width:46px;height:46px;border-radius:12px;background:var(--grad-soft);display:flex;align-items:center;justify-content:center;flex:none;color:var(--violet)}
.spec__ic svg{width:24px;height:24px}
.spec__ic img{width:40px;height:40px;object-fit:contain}
.spec b{display:block;font-size:1.02rem;margin-bottom:3px}
.spec span{font-size:.9rem;color:var(--muted)}
.modal__cta{margin-top:24px;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.modal__note{font-size:.82rem;color:var(--muted);margin-top:14px}

/* responsive */
@media(max-width:980px){.footer__top{grid-template-columns:1fr 1fr}}
@media(max-width:760px){
  .nav__links{display:none}.nav__cta{display:none}.nav__burger{display:flex}
  .nav__name{font-size:1.05rem}
  .footer__top{grid-template-columns:1fr}
  .hero{padding-bottom:96px}
  .modal__head{padding:24px}.modal__body{padding:24px}
}
@media(max-width:560px){.nav__name{display:none}}