/* Ópticas del Centro — sistema visual "Centro óptico" */
@font-face{font-family:"Fraunces";src:url("../fonts/fraunces.woff2") format("woff2");font-weight:300 900;font-display:swap}
@font-face{font-family:"Figtree";src:url("../fonts/figtree.woff2") format("woff2");font-weight:300 900;font-display:swap}
:root{
  --azul:#1565C0;--azul-600:#0F4F9A;--azul-900:#0B2545;--azul-50:#EAF2FC;
  --ambar:#FF8F00;--ambar-200:#FFD08A;--ambar-50:#FFF6E8;
  --blanco:#FFFFFF;--papel:#FBF8F3;--tinta:#13223A;--gris:#5A6678;--linea:#DCE3EC;
  --ok:#1E7B4A;--error:#B3261E;
  --f-display:"Fraunces",Georgia,serif;--f-body:"Figtree",system-ui,-apple-system,"Segoe UI",sans-serif;
  --r:14px;--r-lg:26px;--sombra:0 18px 40px -22px rgba(11,37,69,.45);
  --max:1180px;--pad:clamp(1rem,4vw,2rem);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--f-body);font-size:1.0625rem;line-height:1.6;color:var(--tinta);background:var(--papel)}
img{max-width:100%;height:auto;display:block}
a{color:var(--azul)}a:hover{color:var(--azul-600)}
:focus-visible{outline:3px solid var(--ambar);outline-offset:3px;border-radius:6px}
h1,h2,h3,h4{font-family:var(--f-display);line-height:1.12;color:var(--azul-900);margin:0 0 .6em;font-weight:620;letter-spacing:-.01em}
h1{font-size:clamp(2.1rem,6vw,3.9rem)}h2{font-size:clamp(1.65rem,4vw,2.6rem)}h3{font-size:1.3rem}
p{margin:0 0 1em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.skip{position:absolute;left:-999px;top:0;background:var(--azul-900);color:#fff;padding:.7rem 1rem;z-index:999}.skip:focus{left:1rem}
.eyebrow{font-size:.8rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--azul);display:inline-flex;align-items:center;gap:.5rem;margin-bottom:.8rem}
.eyebrow::before{content:"";width:10px;height:10px;border-radius:50%;background:var(--ambar);box-shadow:0 0 0 4px var(--ambar-50)}
.muted{color:var(--gris)}.small{font-size:.9rem}
/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(251,248,243,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--linea)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:68px}
.brand img{height:42px;width:auto}
.menu{display:none;list-style:none;margin:0;padding:0;gap:.2rem}
.menu a{display:block;padding:.55rem .75rem;border-radius:10px;text-decoration:none;color:var(--tinta);font-weight:600;font-size:.97rem}
.menu a:hover,.menu a[aria-current=page]{background:var(--azul-50);color:var(--azul)}
.nav-cta{display:none}
.burger{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border:1px solid var(--linea);border-radius:12px;background:#fff;cursor:pointer}
.burger span,.burger span::before,.burger span::after{display:block;width:20px;height:2px;background:var(--azul-900);position:relative;transition:.2s}
.burger span::before,.burger span::after{content:"";position:absolute;left:0}.burger span::before{top:-6px}.burger span::after{top:6px}
.burger[aria-expanded=true] span{background:transparent}.burger[aria-expanded=true] span::before{top:0;transform:rotate(45deg)}.burger[aria-expanded=true] span::after{top:0;transform:rotate(-45deg)}
.mobile-menu{border-top:1px solid var(--linea);padding:.6rem var(--pad) 1.2rem;background:var(--papel)}
.mobile-menu[hidden]{display:none}
.mobile-menu ul{list-style:none;margin:0;padding:0}
.mobile-menu a{display:block;padding:.85rem .2rem;border-bottom:1px solid var(--linea);text-decoration:none;color:var(--tinta);font-weight:600}
.mobile-menu .btn{margin-top:1rem;width:100%}
@media(min-width:1000px){.menu{display:flex}.nav-cta{display:inline-flex}.burger,.mobile-menu{display:none!important}}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.85rem 1.35rem;border-radius:999px;border:2px solid transparent;font:700 1rem var(--f-body);text-decoration:none;cursor:pointer;transition:transform .15s,background .15s,box-shadow .15s;min-height:48px}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--azul);color:#fff}.btn-primary:hover{background:var(--azul-600);color:#fff}
.btn-amber{background:var(--ambar);color:var(--azul-900)}.btn-amber:hover{background:#F07F00;color:var(--azul-900)}
.btn-ghost{background:transparent;color:var(--azul);border-color:var(--azul)}.btn-ghost:hover{background:var(--azul-50)}
.btn-light{background:#fff;color:var(--azul-900)}
.btn-sm{padding:.5rem .9rem;min-height:40px;font-size:.92rem}
.btn[disabled]{opacity:.6;cursor:wait}
.icon{width:20px;height:20px;flex:none}
/* hero */
.hero{position:relative;padding:2.2rem 0 3rem;overflow:hidden}
.hero-grid{display:grid;gap:2rem;align-items:center}
.hero h1 em{font-style:italic;color:var(--azul)}
.hero .lead{font-size:1.18rem;color:var(--gris);max-width:36ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:.7rem;margin:1.5rem 0}
.hero-media{position:relative}
.hero-media img{border-radius:var(--r-lg);box-shadow:var(--sombra);aspect-ratio:4/3;object-fit:cover;width:100%}
.lens-badge{position:absolute;left:-10px;bottom:-18px;background:var(--azul-900);color:#fff;border-radius:50%;width:132px;height:132px;display:grid;place-content:center;text-align:center;font-size:.8rem;line-height:1.25;border:6px solid var(--papel)}
.lens-badge strong{font-family:var(--f-display);font-size:1.9rem;color:var(--ambar-200);display:block}
.facts{display:flex;flex-wrap:wrap;gap:.5rem 1.2rem;padding:0;margin:0;list-style:none;font-size:.95rem;color:var(--gris)}
.facts li::before{content:"●";color:var(--ambar);margin-right:.4rem;font-size:.7em;vertical-align:middle}
@media(min-width:900px){.hero{padding:4rem 0 5rem}.hero-grid{grid-template-columns:1.05fr 1fr;gap:3.5rem}.lens-badge{left:-40px;width:150px;height:150px}}
/* sections */
section{padding:3.5rem 0}
@media(min-width:900px){section{padding:5.5rem 0}}
.section-head{max-width:640px;margin-bottom:2rem}
.band-blue{background:var(--azul-900);color:#dfe8f5}.band-blue h2,.band-blue h3{color:#fff}.band-blue .eyebrow{color:var(--ambar-200)}.band-blue a{color:var(--ambar-200)}
.band-amber{background:var(--ambar-50)}
.band-white{background:#fff}
/* steps (editorial list) */
.steps{counter-reset:s;display:grid;gap:1.2rem;list-style:none;padding:0;margin:0}
.steps li{counter-increment:s;padding:1.3rem 1.3rem 1.3rem 4.4rem;position:relative;border-top:1px solid rgba(255,255,255,.18)}
.steps li::before{content:counter(s,decimal-leading-zero);position:absolute;left:0;top:1.1rem;font-family:var(--f-display);font-size:2.4rem;color:var(--ambar)}
@media(min-width:900px){.steps{grid-template-columns:repeat(4,1fr)}.steps li{padding:4rem 0 0;border-top-width:2px}.steps li::before{top:.6rem}}
/* split */
.split{display:grid;gap:2rem;align-items:center}
.split img{border-radius:var(--r-lg);aspect-ratio:4/3;object-fit:cover;width:100%}
@media(min-width:900px){.split{grid-template-columns:1fr 1fr;gap:4rem}.split.rev>:first-child{order:2}}
/* bento of highlights */
.bento{display:grid;gap:1rem}
.tile{background:#fff;border:1px solid var(--linea);border-radius:var(--r-lg);padding:1.5rem;position:relative;overflow:hidden;text-decoration:none;color:inherit;display:flex;flex-direction:column;transition:box-shadow .2s,transform .2s}
.tile:hover{box-shadow:var(--sombra);transform:translateY(-2px);color:inherit}
.tile .price{font-family:var(--f-display);font-size:1.6rem;color:var(--azul);margin-top:auto}
.tile.photo{padding:0;min-height:300px;color:#fff;justify-content:flex-end}
.tile.photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.tile.photo .cap{position:relative;padding:1.5rem;background:linear-gradient(transparent,rgba(11,37,69,.92))}
.tile.photo h3,.tile.photo .price{color:#fff}
@media(min-width:760px){.bento{grid-template-columns:repeat(6,1fr)}.bento .s2{grid-column:span 2}.bento .s3{grid-column:span 3}.bento .s4{grid-column:span 4}.bento .r2{grid-row:span 2}}
/* cards */
.grid{display:grid;gap:1.1rem}
@media(min-width:640px){.grid.c2{grid-template-columns:repeat(2,1fr)}.grid.c3{grid-template-columns:repeat(2,1fr)}}
@media(min-width:960px){.grid.c3{grid-template-columns:repeat(3,1fr)}}
.card{background:#fff;border:1px solid var(--linea);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column}
.card img{aspect-ratio:3/2;object-fit:cover;width:100%}
.card .body{padding:1.2rem;display:flex;flex-direction:column;gap:.4rem;flex:1}
.card h3{margin:0;font-size:1.2rem}.card h3 a{text-decoration:none;color:var(--azul-900)}.card h3 a:hover{color:var(--azul)}
.tag{display:inline-block;font-size:.75rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:.2rem .6rem;border-radius:999px;background:var(--azul-50);color:var(--azul);align-self:flex-start}
.price-line{font-family:var(--f-display);font-size:1.45rem;color:var(--azul);margin-top:auto}
.price-line small{font-family:var(--f-body);font-size:.8rem;color:var(--gris);display:block}
.note{font-size:.85rem;color:var(--gris);border-left:3px solid var(--ambar);padding:.3rem .8rem;margin:1rem 0}
/* catalog tools */
.toolbar{display:flex;flex-wrap:wrap;gap:.7rem;align-items:center;margin-bottom:1.5rem}
.search{flex:1 1 260px;position:relative}
.search input{width:100%}
.chips{display:flex;flex-wrap:wrap;gap:.4rem}
.chip{border:1px solid var(--linea);background:#fff;border-radius:999px;padding:.5rem .9rem;font:600 .9rem var(--f-body);cursor:pointer;color:var(--tinta);min-height:40px}
.chip[aria-pressed=true]{background:var(--azul);color:#fff;border-color:var(--azul)}
.empty{padding:2rem;text-align:center;background:#fff;border:1px dashed var(--linea);border-radius:var(--r)}
/* forms */
label{font-weight:600;display:block;margin-bottom:.35rem}
input,select,textarea{width:100%;font:inherit;padding:.8rem .9rem;border:1.5px solid var(--linea);border-radius:12px;background:#fff;color:var(--tinta);min-height:48px}
input:focus,select:focus,textarea:focus{border-color:var(--azul);outline:none;box-shadow:0 0 0 4px var(--azul-50)}
.field{margin-bottom:1rem}
.field .err{color:var(--error);font-size:.88rem;margin-top:.3rem;display:none}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:var(--error)}
.field.invalid .err{display:block}
.check{display:flex;gap:.6rem;align-items:flex-start;font-weight:400}.check input{width:22px;min-height:22px;height:22px;margin-top:.15rem;flex:none}
fieldset{border:0;padding:0;margin:0 0 1rem}legend{font-weight:600;margin-bottom:.4rem}
.radios{display:flex;flex-wrap:wrap;gap:.5rem}.radios label{display:flex;gap:.4rem;align-items:center;font-weight:500;border:1.5px solid var(--linea);border-radius:999px;padding:.45rem .9rem;background:#fff;cursor:pointer}
.radios input{width:18px;min-height:18px;height:18px;margin:0}
.panel{background:#fff;border:1px solid var(--linea);border-radius:var(--r-lg);padding:clamp(1.2rem,3vw,2rem)}
.status{padding:1rem;border-radius:12px;margin-top:1rem}.status.ok{background:#E7F5EC;color:var(--ok)}.status.bad{background:#FBE9E7;color:var(--error)}
.preview{white-space:pre-wrap;background:var(--azul-50);padding:1rem;border-radius:12px;font-size:.93rem}
.hp{position:absolute;left:-9999px}
/* quote */
.quote-total{font-family:var(--f-display);font-size:2.4rem;color:var(--azul)}
.quote-list{list-style:none;padding:0;margin:0 0 1rem}.quote-list li{display:flex;justify-content:space-between;border-bottom:1px dashed var(--linea);padding:.4rem 0}
/* gallery */
.gallery{display:grid;gap:.8rem;grid-template-columns:repeat(2,1fr)}
@media(min-width:900px){.gallery{grid-template-columns:repeat(4,1fr)}.gallery .big{grid-column:span 2;grid-row:span 2}}
.gallery button{padding:0;border:0;border-radius:var(--r);overflow:hidden;cursor:zoom-in;background:none;position:relative}
.gallery img{width:100%;height:100%;object-fit:cover;aspect-ratio:1;transition:transform .4s}
.gallery button:hover img{transform:scale(1.04)}
.lightbox{position:fixed;inset:0;background:rgba(6,18,36,.94);z-index:200;display:flex;align-items:center;justify-content:center;padding:1rem}
.lightbox[hidden]{display:none}
.lightbox figure{margin:0;max-width:1100px;width:100%;text-align:center;color:#fff}
.lightbox img{max-height:78vh;margin:0 auto;border-radius:12px}
.lightbox .lb-btn{position:absolute;background:#fff;color:var(--azul-900);border:0;width:48px;height:48px;border-radius:50%;font-size:1.4rem;cursor:pointer}
.lb-close{top:1rem;right:1rem}.lb-prev{left:1rem;top:50%}.lb-next{right:1rem;top:50%}
/* faq */
details{background:#fff;border:1px solid var(--linea);border-radius:var(--r);padding:0 1.2rem;margin-bottom:.7rem}
summary{cursor:pointer;padding:1.1rem 0;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:1rem}
summary::after{content:"+";font-size:1.4rem;color:var(--ambar);line-height:1}details[open] summary::after{content:"–"}
details>div{padding-bottom:1.1rem}
/* prose */
.prose{max-width:72ch}.prose h2{font-size:1.65rem;margin-top:2rem}.prose h3{margin-top:1.5rem}.prose li{margin-bottom:.4rem}
.prose table{border-collapse:collapse;width:100%;font-size:.95rem}.prose td,.prose th{border:1px solid var(--linea);padding:.5rem;text-align:left}
.page-head{padding:2.5rem 0 1.5rem;background:linear-gradient(180deg,var(--azul-50),var(--papel))}
.crumbs{font-size:.88rem;margin-bottom:1rem}.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem;padding:0;margin:0}.crumbs li+li::before{content:"/";margin-right:.4rem;color:var(--gris)}
.crumbs a{color:var(--gris)}
.article-cover{border-radius:var(--r-lg);aspect-ratio:16/8;object-fit:cover;width:100%;margin-bottom:1.5rem}
.dl{display:grid;grid-template-columns:auto 1fr;gap:.4rem 1rem;margin:0}.dl dt{font-weight:700}.dl dd{margin:0}
/* footer */
.site-footer{background:var(--azul-900);color:#c9d6e8;padding:3rem 0 7rem;font-size:.95rem}
.site-footer a{color:#fff}.site-footer h2{color:#fff;font-size:1.05rem;font-family:var(--f-body);font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.foot-grid{display:grid;gap:2rem}@media(min-width:900px){.foot-grid{grid-template-columns:1.3fr 1fr 1fr 1fr}}
.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{margin-bottom:.45rem}
.linkbtn{background:none;border:0;color:#fff;text-decoration:underline;font:inherit;padding:0;cursor:pointer}
.legal{border-top:1px solid rgba(255,255,255,.15);margin-top:2rem;padding-top:1.2rem;font-size:.85rem}
/* floating: WhatsApp left of chatbot, both above cookie banner */
.fabs{position:fixed;right:16px;bottom:calc(16px + var(--cookie-h,0px));z-index:90;display:flex;flex-direction:column;gap:10px;align-items:flex-end;transition:bottom .25s}
.fab{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;border:0;box-shadow:var(--sombra);cursor:pointer;text-decoration:none}
.fab-wa{background:#1E7B4A;color:#fff}.fab-call{background:#fff;color:var(--azul)}.fab-chat{background:var(--azul);color:#fff;width:62px;height:62px}
.fab svg{width:26px;height:26px}
@media(min-width:1000px){.fab-call{display:none}}
/* chatbot */
.chat{padding:0;position:fixed;right:16px;bottom:calc(90px + var(--cookie-h,0px));width:min(380px,calc(100vw - 32px));height:min(560px,calc(100dvh - 190px - var(--cookie-h,0px)));background:#fff;border-radius:20px;box-shadow:0 30px 60px -20px rgba(11,37,69,.5);z-index:100;display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--linea)}
.chat[hidden]{display:none}
.chat-head{background:var(--azul-900);color:#fff;padding:.9rem 1rem;display:flex;align-items:center;gap:.7rem}
.chat-head .av{width:38px;height:38px;border-radius:50%;background:#fff;display:grid;place-items:center;flex:none}
.chat-head strong{display:block;font-size:1rem}.chat-head span{font-size:.78rem;color:#b8c8de}
.chat-head .act{margin-left:auto;display:flex;gap:.3rem}
.chat-head button{background:rgba(255,255,255,.12);color:#fff;border:0;border-radius:10px;min-width:38px;height:38px;cursor:pointer;font:600 .8rem var(--f-body);padding:0 .6rem}
.chat-log{flex:1;overflow-y:auto;padding:1rem;display:flex;flex-direction:column;gap:.6rem;background:var(--papel)}
.msg{max-width:88%;padding:.65rem .85rem;border-radius:14px;font-size:.95rem;line-height:1.45}
.msg.bot{background:#fff;border:1px solid var(--linea);border-bottom-left-radius:4px}
.msg.user{background:var(--azul);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.msg a{font-weight:700}
.quick{display:flex;flex-wrap:wrap;gap:.35rem;padding:.6rem .8rem;border-top:1px solid var(--linea);background:#fff}
.quick button{border:1px solid var(--azul);color:var(--azul);background:#fff;border-radius:999px;padding:.35rem .7rem;font:600 .82rem var(--f-body);cursor:pointer;min-height:34px}
.quick button:hover{background:var(--azul-50)}
.chat-form{display:flex;gap:.4rem;padding:.7rem;border-top:1px solid var(--linea)}
.chat-form input{min-height:44px;padding:.6rem .8rem}
.chat-form button{flex:none}
/* cookie banner */
.cookie{position:fixed;left:0;right:0;bottom:0;z-index:95;background:#fff;border-top:3px solid var(--ambar);box-shadow:0 -10px 30px -15px rgba(0,0,0,.3);padding:1rem var(--pad)}
.cookie[hidden]{display:none}
.cookie .in{max-width:var(--max);margin:0 auto;display:flex;flex-wrap:wrap;gap:.8rem 1.5rem;align-items:center;justify-content:space-between}
.cookie p{margin:0;font-size:.92rem;flex:1 1 420px}
.cookie .btns{display:flex;gap:.6rem}
/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s,transform .6s}.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}.reveal{opacity:1;transform:none}}
.notfound{text-align:center;padding:5rem 0}.notfound .big{font-family:var(--f-display);font-size:7rem;color:var(--azul);line-height:1}
noscript .ns{display:block;background:var(--ambar-50);padding:.6rem;text-align:center}