@import url("https://fonts.googleapis.com/css2?family=Sora:wght@500;600;700&family=Inter:wght@400;500;600&display=swap");
:root{
  --petroleo:#173B4D; --acero:#547C91; --cobre:#D47A43; --perla:#E8ECEF;
  --arq:#F8FAFB; --grafito:#303A40; --turq:#269A9A;
  --radius:14px; --shadow:0 10px 30px rgba(23,59,77,.12); --shadow-lg:0 24px 60px rgba(23,59,77,.22);
  --max:1180px; --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--grafito);background:var(--arq);line-height:1.65;font-size:17px}
img{max-width:100%;display:block}
a{color:var(--petroleo);text-decoration:none}
a:hover{color:var(--cobre)}
h1,h2,h3,h4{font-family:Sora,Inter,sans-serif;color:var(--petroleo);line-height:1.18;margin:0 0 .6em;letter-spacing:-.01em}
h1{font-size:clamp(2.1rem,4.6vw,3.6rem)}
h2{font-size:clamp(1.6rem,3vw,2.4rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em}
:focus-visible{outline:3px solid var(--turq);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;background:#F8FAFB;padding:8px 12px;z-index:999}
.container{width:min(var(--max),92vw);margin-inline:auto}
.section{padding:clamp(64px,9vw,112px) 0}
.section-pearl{background:var(--perla)}
.section-petroleo{background:var(--petroleo);color:#E8ECEF}
.section-petroleo h2,.section-petroleo h3{color:#F8FAFB}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--turq);margin-bottom:.9rem}
.lead{font-size:1.15rem;color:var(--acero)}
.center{text-align:center}
.center .lead{margin-inline:auto}
.narrow{max-width:760px}
.grid{display:grid;gap:clamp(18px,2.6vw,30px)}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,80px);align-items:center}
.split.rev>:first-child{order:2}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(248,250,251,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(23,59,77,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.brand{display:flex;align-items:center;gap:12px;color:var(--petroleo);font-family:Sora;font-weight:700;letter-spacing:.12em;font-size:1.05rem}
.brand:hover{color:var(--petroleo)}
.brand img{width:40px;height:40px}
.menu{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.menu a{display:block;padding:9px 12px;border-radius:999px;font-weight:500;font-size:.95rem;color:var(--grafito)}
.menu a:hover,.menu a[aria-current="page"]{color:var(--petroleo);background:var(--perla)}
.menu a[aria-current="page"]{font-weight:600}
.menu-toggle{display:none;background:none;border:0;padding:10px;cursor:pointer;color:var(--petroleo)}
.menu-toggle span{display:block;width:24px;height:2px;background:currentColor;margin:5px 0;transition:transform .3s var(--ease),opacity .2s}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 26px;border-radius:999px;font-weight:600;font-size:.98rem;border:2px solid transparent;cursor:pointer;transition:transform .25s var(--ease),background .25s,box-shadow .25s,color .25s;font-family:inherit;text-align:center}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-copper{background:var(--cobre);color:#F8FAFB}
.btn-copper:hover{background:#D47A43;color:#F8FAFB}
.btn-petroleo{background:var(--petroleo);color:#F8FAFB}
.btn-petroleo:hover{background:var(--acero);color:#F8FAFB}
.btn-ghost{border-color:var(--petroleo);color:var(--petroleo);background:transparent}
.btn-ghost:hover{background:var(--petroleo);color:#F8FAFB}
.btn-light{border-color:#F8FAFB;color:#F8FAFB;background:transparent}
.btn-light:hover{background:#F8FAFB;color:var(--petroleo)}
.btn-sm{padding:10px 18px;font-size:.9rem}
.nav .btn{padding:11px 20px}
.actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* media */
.ar-16-9{aspect-ratio:16/9}.ar-3-2{aspect-ratio:3/2}.ar-4-5{aspect-ratio:4/5}.ar-21-9{aspect-ratio:21/9}.ar-1-1{aspect-ratio:1/1}
.frame{position:relative;overflow:hidden;border-radius:var(--radius);background:var(--perla)}
.frame img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.frame.ar-21-9{border-radius:var(--radius)}

/* hero */
.hero{position:relative;min-height:min(92vh,820px);display:flex;align-items:flex-end;color:#F8FAFB;overflow:hidden;background:var(--petroleo)}
.hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;animation:kenburns 18s ease-out both}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(23,59,77,.25) 0%,rgba(23,59,77,.55) 55%,rgba(23,59,77,.92) 100%);z-index:1}
.hero .container{position:relative;z-index:2;padding:clamp(120px,18vh,200px) 0 clamp(56px,9vh,96px)}
.hero h1{color:#F8FAFB;max-width:14ch}
.hero .lead{color:#E8ECEF;max-width:560px;font-size:clamp(1.05rem,1.6vw,1.25rem)}
.hero .eyebrow{color:#269A9A}
@keyframes kenburns{from{transform:scale(1.08)}to{transform:scale(1)}}

.page-hero{padding:clamp(56px,8vw,96px) 0 clamp(40px,6vw,64px);background:linear-gradient(180deg,var(--perla),var(--arq))}
.page-hero h1{max-width:18ch}
.page-hero .lead{max-width:640px}
.crumbs{font-size:.88rem;color:var(--acero);margin-bottom:18px}
.crumbs a{color:var(--acero)}
.crumbs span{margin:0 8px;opacity:.6}

/* cards */
.card{background:#F8FAFB;border-radius:var(--radius);overflow:hidden;box-shadow:0 2px 10px rgba(23,59,77,.06);display:flex;flex-direction:column;transition:transform .35s var(--ease),box-shadow .35s var(--ease);height:100%}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.card:hover .frame img{transform:scale(1.05)}
.card .frame{border-radius:0}
.card-body{padding:clamp(20px,2.4vw,28px);display:flex;flex-direction:column;gap:10px;flex:1}
.card-body p{color:#303A40;margin:0}
.card-link{margin-top:auto;font-weight:600;color:var(--petroleo);display:inline-flex;gap:8px;align-items:center}
.card-link::after{content:"→";transition:transform .25s var(--ease)}
.card:hover .card-link::after{transform:translateX(5px)}
.card-link:hover{color:var(--cobre)}
.icon-tile{width:52px;height:52px;border-radius:14px;background:var(--perla);display:grid;place-items:center;color:var(--petroleo)}
.icon-tile svg{width:26px;height:26px}
.feature{padding:clamp(22px,2.6vw,32px);background:#F8FAFB;border-radius:var(--radius);transition:transform .3s var(--ease),box-shadow .3s}
.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.feature p{color:#303A40;margin:0}
.num{font-family:Sora;font-weight:700;color:var(--cobre);font-size:.95rem;margin-bottom:12px;display:block}
.section-petroleo .feature{background:rgba(248,250,251,.06)}
.section-petroleo .feature p{color:#E8ECEF}
.section-petroleo .feature h3{color:#F8FAFB}
.tag{display:inline-block;font-size:.78rem;font-weight:600;letter-spacing:.04em;padding:5px 12px;border-radius:999px;background:var(--perla);color:var(--petroleo)}
.tag-copper{background:#F8FAFB;color:#303A40}

/* prose */
.prose{max-width:760px}
.prose h2{margin-top:1.6em}
.prose h3{margin-top:1.3em}
.prose ul,.prose ol{padding-left:1.2em;margin:0 0 1.2em}
.prose li{margin-bottom:.4em}
.prose a{text-decoration:underline;text-underline-offset:3px}
.prose .meta{color:var(--acero);font-size:.92rem;margin-bottom:1.2em}
.legal p,.legal li{color:#303A40}
.note{border-left:4px solid var(--turq);background:#F8FAFB;padding:18px 22px;border-radius:0 12px 12px 0;margin:1.4em 0}
.toc{background:#F8FAFB;border-radius:var(--radius);padding:22px 26px;margin-bottom:2em}
.toc ol{margin:0;padding-left:1.2em}
.toc a{text-decoration:none}

/* blog */
.post-card .card-body h3{font-size:1.2rem;margin:0}
.post-card time{font-size:.88rem;color:var(--acero)}
.cat-row{display:flex;flex-wrap:wrap;gap:8px}

/* testimonial carousel */
.carousel{position:relative;max-width:820px;margin-inline:auto;text-align:center}
.slides{position:relative;min-height:220px}
.slide{position:absolute;inset:0;opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);pointer-events:none;display:flex;flex-direction:column;justify-content:center;align-items:center}
.slide.is-active{opacity:1;transform:none;pointer-events:auto;position:relative}
.slide blockquote{margin:0;font-family:Sora;font-size:clamp(1.25rem,2.4vw,1.7rem);color:var(--petroleo);line-height:1.4}
.slide cite{display:block;margin-top:18px;font-style:normal;color:var(--acero);font-weight:600}
.carousel-ctrl{display:flex;justify-content:center;align-items:center;gap:14px;margin-top:26px}
.dots{display:flex;gap:8px}
.dots button{width:10px;height:10px;border-radius:50%;border:0;background:#547C91;cursor:pointer;padding:0;transition:background .2s,transform .2s}
.dots button[aria-selected="true"]{background:var(--cobre);transform:scale(1.25)}
.arrow{width:46px;height:46px;border-radius:50%;border:2px solid var(--petroleo);background:transparent;color:var(--petroleo);cursor:pointer;display:grid;place-items:center;transition:background .2s,color .2s}
.arrow:hover{background:var(--petroleo);color:#F8FAFB}
.arrow svg{width:18px;height:18px}

/* gallery */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.filter{padding:9px 18px;border-radius:999px;border:1.5px solid #547C91;background:#F8FAFB;color:var(--petroleo);font:600 .9rem Inter,sans-serif;cursor:pointer;transition:all .2s}
.filter:hover{border-color:var(--petroleo)}
.filter[aria-pressed="true"]{background:var(--petroleo);border-color:var(--petroleo);color:#F8FAFB}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:260px;gap:18px}
.gallery button{padding:0;border:0;background:none;cursor:zoom-in;position:relative;border-radius:var(--radius);overflow:hidden;text-align:left;transition:transform .35s var(--ease)}
.gallery button:hover{transform:translateY(-4px)}
.gallery button img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.gallery button:hover img{transform:scale(1.06)}
.gallery button span{position:absolute;left:14px;bottom:14px;right:14px;padding:10px 14px;background:rgba(23,59,77,.86);color:#F8FAFB;border-radius:10px;font-size:.9rem;font-weight:600;opacity:0;transform:translateY(8px);transition:all .3s var(--ease)}
.gallery button:hover span,.gallery button:focus-visible span{opacity:1;transform:none}
.gallery .tall{grid-row:span 2}
.gallery .wide{grid-column:span 2}
.gallery .hidden{display:none}
.lightbox{position:fixed;inset:0;background:rgba(23,59,77,.9);display:none;align-items:center;justify-content:center;z-index:200;padding:24px}
.lightbox.open{display:flex}
.lightbox figure{margin:0;max-width:min(1100px,100%);text-align:center}
.lightbox img{max-height:76vh;width:auto;margin:0 auto;border-radius:12px}
.lightbox figcaption{color:#E8ECEF;margin-top:14px}
.lb-btn{position:absolute;background:rgba(248,250,251,.12);border:0;color:#F8FAFB;width:50px;height:50px;border-radius:50%;cursor:pointer;display:grid;place-items:center}
.lb-btn:hover{background:rgba(248,250,251,.25)}
.lb-btn svg{width:22px;height:22px}
.lb-close{top:18px;right:18px}.lb-prev{left:18px;top:50%;transform:translateY(-50%)}.lb-next{right:18px;top:50%;transform:translateY(-50%)}

/* forms */
.form{display:grid;gap:18px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-weight:600;font-size:.92rem;color:var(--petroleo)}
.field input,.field select,.field textarea{font:inherit;padding:13px 15px;border:1.5px solid #547C91;border-radius:12px;background:#F8FAFB;color:var(--grafito);transition:border-color .2s,box-shadow .2s}
.field textarea{min-height:140px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--turq);box-shadow:0 0 0 4px rgba(38,154,154,.15)}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:#D47A43}
.err{color:#D47A43;font-size:.86rem;min-height:0;display:none}
.field.invalid .err{display:block}
.check{display:flex;gap:12px;align-items:flex-start;font-size:.92rem;color:#303A40}
.check input{margin-top:5px;width:18px;height:18px;accent-color:var(--petroleo);flex:none}
.check.invalid{color:#D47A43}
.form-status{padding:16px 18px;border-radius:12px;display:none;font-weight:500}
.form-status.ok{display:block;background:#E8ECEF;color:#173B4D}
.form-status.bad{display:block;background:#F8FAFB;color:#303A40}
.contact-list{list-style:none;padding:0;margin:0;display:grid;gap:18px}
.contact-list li{display:flex;gap:16px;align-items:flex-start}
.contact-list svg{width:24px;height:24px;color:var(--cobre);flex:none;margin-top:3px}
.contact-list strong{display:block;color:var(--petroleo)}
.cta-band{background:var(--petroleo);color:#F8FAFB;border-radius:22px;padding:clamp(36px,5vw,64px);display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border:40px solid rgba(248,250,251,.05);border-radius:50%}
.cta-band h2{color:#F8FAFB;margin:0;max-width:20ch}
.cta-band p{color:#E8ECEF;margin:6px 0 0}

/* footer */
.site-footer{background:var(--petroleo);color:#E8ECEF;padding:clamp(56px,7vw,88px) 0 28px;font-size:.95rem}
.site-footer h3{color:#F8FAFB;font-size:.9rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:16px;font-family:Inter}
.site-footer a{color:#E8ECEF}
.site-footer a:hover{color:#F8FAFB}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1.2fr;gap:36px}
.foot-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.foot-brand .brand{color:#F8FAFB}
.foot-brand .brand:hover{color:#F8FAFB}
.foot-brand p{margin:16px 0 0;color:#E8ECEF}
.foot-bottom{margin-top:52px;padding-top:24px;border-top:1px solid rgba(248,250,251,.12);display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;font-size:.88rem;color:#E8ECEF}
.foot-bottom ul{display:flex;flex-wrap:wrap;gap:18px;list-style:none;margin:0;padding:0}

/* whatsapp & cookies */
.wa-float{position:fixed;right:20px;bottom:20px;z-index:90;width:58px;height:58px;border-radius:50%;background:#269A9A;display:grid;place-items:center;box-shadow:0 10px 24px rgba(48,58,64,.25);transition:transform .25s var(--ease)}
.wa-float:hover{transform:scale(1.08);color:#F8FAFB}
.wa-float svg{width:30px;height:30px;fill:#F8FAFB}
.cookie-bar{position:fixed;left:18px;right:18px;bottom:18px;max-width:880px;margin-inline:auto;background:#F8FAFB;border-radius:18px;box-shadow:var(--shadow-lg);padding:20px 24px;display:none;z-index:95;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cookie-bar.show{display:flex}
.cookie-bar p{margin:0;font-size:.93rem;color:#303A40;flex:1 1 380px}
.cookie-bar p a{text-decoration:underline}
.cookie-actions{display:flex;flex-wrap:wrap;gap:10px}
.cookie-modal{position:fixed;inset:0;background:rgba(23,59,77,.55);display:none;align-items:center;justify-content:center;padding:20px;z-index:120}
.cookie-modal.open{display:flex}
.cookie-dialog{background:#F8FAFB;border-radius:20px;padding:clamp(24px,3vw,34px);max-width:540px;width:100%;max-height:90vh;overflow:auto}
.cookie-dialog h2{font-size:1.4rem}
.cat{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--perla)}
.cat p{margin:4px 0 0;font-size:.9rem;color:#303A40}
.switch{position:relative;width:52px;height:30px;flex:none}
.switch input{opacity:0;width:0;height:0;position:absolute}
.switch span{position:absolute;inset:0;background:#547C91;border-radius:999px;transition:background .2s;cursor:pointer}
.switch span::after{content:"";position:absolute;left:4px;top:4px;width:22px;height:22px;background:#F8FAFB;border-radius:50%;transition:transform .25s var(--ease)}
.switch input:checked + span{background:var(--turq)}
.switch input:checked + span::after{transform:translateX(22px)}
.switch input:disabled + span{opacity:.55;cursor:not-allowed}
.cookie-dialog .actions{margin-top:20px}

/* page transition */
.transition{position:fixed;inset:0;background:var(--petroleo);z-index:300;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .35s ease}
.transition.on{opacity:1;pointer-events:all}
.transition svg{width:96px;height:96px}
.transition .draw{fill:none;stroke:#F8FAFB;stroke-width:6;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:420;stroke-dashoffset:420}
.transition .draw-b{stroke:var(--cobre)}
.transition.on .draw{animation:draw 0.7s var(--ease) forwards}
.transition.on .draw-b{animation-delay:.25s}
@keyframes draw{to{stroke-dashoffset:0}}

/* reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}

.anchor{scroll-margin-top:100px}
.stack{display:grid;gap:14px}
.note-list{display:grid;gap:12px;list-style:none;padding:0;margin:0}
.note-list li{display:flex;gap:12px;align-items:flex-start}
.note-list li::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--turq);margin-top:10px;flex:none}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:36px}
.stat{border-top:2px solid var(--cobre);padding-top:14px}
.stat strong{display:block;font-family:Sora;color:var(--petroleo);font-size:1.02rem;margin-bottom:4px}
.stat span{font-size:.92rem;color:#303A40}

@media (max-width:1020px){
  .foot-grid{grid-template-columns:1fr 1fr}
  .g4{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .menu-toggle{display:block}
  .menu{position:fixed;top:76px;left:0;right:0;background:var(--arq);flex-direction:column;align-items:stretch;padding:12px 4vw 24px;gap:0;box-shadow:var(--shadow);transform:translateY(-120%);transition:transform .4s var(--ease);z-index:-1;border-bottom:1px solid var(--perla)}
  .menu.open{transform:none}
  .menu a{padding:14px 12px;border-radius:10px}
  .nav .btn{display:none}
  .menu .m-cta{display:block;margin-top:10px}
  .menu .m-cta a{background:var(--cobre);color:#F8FAFB;text-align:center;border-radius:999px}
  .split,.split.rev>:first-child{grid-template-columns:1fr;order:0}
  .g3{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:1fr 1fr;grid-auto-rows:220px}
}
@media (min-width:901px){.menu .m-cta{display:none}}
@media (max-width:640px){
  body{font-size:16px}
  .g2,.g3,.g4,.row,.foot-grid{grid-template-columns:1fr}
  .form .row{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr;grid-auto-rows:240px}
  .gallery .wide{grid-column:auto}
  .gallery .tall{grid-row:auto}
  .stat-row{grid-template-columns:1fr}
  .wa-float{width:54px;height:54px;right:14px;bottom:14px}
  .cookie-bar{left:10px;right:10px;bottom:10px}
  .actions .btn{width:100%}
  .hero{min-height:88vh}
  .cta-band .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}