:root{
  --graphite:#1F2D35; --graphite-2:#263842; --slate:#3B4E59; --steel:#62757F;
  --blue:#0571AD; --blue-hover:#04608F; --sky:#49B1EA; --ice:#8FD0F5;
  --paper:#EEF2F4; --surface:#FFFFFF; --text:#1F2D35; --muted:#52646E; --line:#D5DEE3;
  --on-dark:#E6EEF2; --on-dark-muted:#A9BBC5; --line-dark:#3A4E59;
  --head:"Barlow Condensed","Arial Narrow","Roboto Condensed",Arial,sans-serif;
  --body:"Barlow","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --wrap:1180px;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --paper:#18242B; --surface:#22313A; --text:#E6EEF2; --muted:#A9BBC5; --line:#34474F;
  }
}
:root[data-theme="dark"]{--paper:#18242B; --surface:#22313A; --text:#E6EEF2; --muted:#A9BBC5; --line:#34474F;}
*,*::before,*::after{box-sizing:inherit}
html{scroll-behavior:smooth;scroll-padding-top:calc(76px + env(safe-area-inset-top,0px))}
body{margin:0;background:var(--paper);color:var(--text);font:400 17px/1.6 var(--body);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,h4{font-family:var(--head);font-weight:600;line-height:1.08;margin:0;letter-spacing:.005em}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
:focus-visible{outline:3px solid var(--sky);outline-offset:3px;border-radius:2px}
.skip{position:absolute;left:-999px;top:8px;background:var(--blue);color:#fff;padding:8px 14px;z-index:100}
.skip:focus{left:12px}

/* Header */
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:#fff;border-bottom:1px solid #DCE3E7}
.site-header .wrap{display:flex;align-items:center;gap:28px;height:72px}
.brand img{height:46px;width:auto}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{font:500 16px/1 var(--body);color:#2C3D47;text-decoration:none;padding:10px 12px;border-radius:4px}
.nav a:hover{color:var(--blue);background:#EEF5FA}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 16px/1 var(--body);text-decoration:none;border:0;cursor:pointer;padding:14px 22px;border-radius:4px;transition:background .15s}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-hover)}
.btn-line{background:transparent;color:var(--ice);box-shadow:inset 0 0 0 1.5px var(--ice)}
.btn-line:hover{background:rgba(143,208,245,.12)}
.header-cta{padding:12px 18px}

/* Hero */
.hero{background:var(--graphite);color:var(--on-dark);position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(143,208,245,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(143,208,245,.06) 1px,transparent 1px);background-size:32px 32px;pointer-events:none}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding-top:72px;padding-bottom:80px}
.hero h1{color:var(--ice);font-size:clamp(34px,4vw,52px);font-weight:700;max-width:20ch}
.hero .lead{font-size:19px;color:var(--on-dark);max-width:56ch;margin-top:24px}
.hero .sub{color:var(--on-dark-muted);max-width:56ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px 18px;margin:28px 0 0;padding:0;list-style:none;font:500 15px/1.3 var(--body);color:var(--on-dark-muted)}
.hero-tags li::before{content:"";display:inline-block;width:8px;height:8px;background:var(--sky);margin-right:8px;transform:translateY(-1px)}
.build{width:100%;max-width:520px;justify-self:end}
.build .fz{fill:#7C95A3}.build .fx{fill:#62757F}.build .fy{fill:#3B4E59}
.build .ly{fill:none;stroke:rgba(15,25,30,.35);stroke-width:1}
.build .hole{fill:#2A3C46}
.build .bed{fill:none;stroke:var(--line-dark);stroke-width:1.5}
.build .cover{fill:var(--graphite);transform-box:fill-box;transform-origin:50% 0%;animation:build 3.6s steps(31,end) .3s both}
.build .nozzle{animation:rise 3.6s steps(31,end) .3s both, fade .4s ease 3.9s both}
.build .nozzle g{animation:sweep .45s ease-in-out .3s 8 alternate both}
.build .axis line{stroke:var(--sky);stroke-width:3}
.build .axis path{fill:var(--sky)}
.build .axis text{fill:var(--on-dark-muted);font:600 13px var(--head)}
@keyframes build{from{transform:scaleY(1)}to{transform:scaleY(0)}}
@keyframes rise{from{transform:translateY(0)}to{transform:translateY(-381px)}}
@keyframes sweep{from{transform:translateX(-110px)}to{transform:translateX(110px)}}
@keyframes fade{to{opacity:0}}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .build .cover,.build .nozzle,.build .nozzle g{animation:none}
  .build .cover,.build .nozzle{display:none}
  .detail{transition:none!important}
}

/* Sections */
.section{padding:88px 0}
.section-dark{background:var(--graphite);color:var(--on-dark)}
.section-dark-2{background:var(--graphite-2);color:var(--on-dark)}
.section-light{background:var(--paper);color:var(--text)}
.section-surface{background:var(--surface);color:var(--text)}
.h2{font-size:clamp(32px,3.6vw,46px);font-weight:700}
.section-dark .h2,.section-dark-2 .h2{color:var(--ice)}
.section-light .h2,.section-surface .h2{color:var(--slate)}
:root[data-theme="dark"] .section-light .h2,:root[data-theme="dark"] .section-surface .h2{color:var(--ice)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .section-light .h2,:root:not([data-theme="light"]) .section-surface .h2{color:var(--ice)}}
.intro{max-width:64ch;margin-top:16px;font-size:18px}
.section-dark .intro,.section-dark-2 .intro{color:var(--on-dark-muted)}
.section-light .intro,.section-surface .intro{color:var(--muted)}
.pending{display:inline-block;font:500 13px/1.4 var(--body);color:#7A5A00;background:#FFF1C2;border:1px dashed #C9A227;padding:3px 8px;border-radius:3px}

/* Needs */
.needs{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:36px;border-top:2px solid var(--slate)}
.need{padding:26px 28px 28px 0;border-right:1px solid var(--line);text-decoration:none;display:flex;flex-direction:column;gap:10px}
.need + .need{padding-left:28px}
.need:last-child{border-right:0}
.need q{font:600 24px/1.2 var(--head);quotes:"“" "”";color:var(--text)}
.need span{color:var(--muted);font-size:16px}
.need b{color:var(--blue);font-weight:600;margin-top:auto}
:root[data-theme="dark"] .need b{color:var(--sky)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .need b{color:var(--sky)}}
.need:hover q{color:var(--blue)}

/* Services */
.services{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:44px}
.service{background:var(--graphite-2);border-top:3px solid var(--sky);display:flex;flex-direction:column}
.service .media{aspect-ratio:16/10}
.service .body{padding:24px 24px 28px}
.service h3{color:var(--ice);font-size:28px;margin-bottom:10px}
.service p{color:var(--on-dark-muted);font-size:16px}
.service dl{margin:16px 0 0;font-size:15px}
.service dt{font-weight:600;color:var(--on-dark);margin-top:12px}
.service dd{margin:2px 0 0;color:var(--on-dark-muted)}
.more{display:flex;justify-content:center;margin-top:44px}
.detail{overflow:hidden;transition:grid-template-rows .35s ease;display:grid;grid-template-rows:0fr}
.detail.open{grid-template-rows:1fr}
.detail > div{min-height:0}
.detail-inner{margin-top:40px;border:1px solid var(--line-dark);background:var(--graphite)}
.detail-row{display:grid;grid-template-columns:240px 1fr 1fr 1fr;gap:28px;padding:28px;border-bottom:1px solid var(--line-dark)}
.detail-row:last-of-type{border-bottom:0}
.detail-row h4{color:var(--ice);font-size:24px}
.detail-row h5{margin:0 0 6px;font:600 15px var(--body);color:var(--on-dark)}
.detail-row p{color:var(--on-dark-muted);font-size:15px;margin:0}
.detail-foot{padding:18px 28px;border-top:1px solid var(--line-dark);display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}

/* Photo slot placeholder */
.slot{position:relative;background:#2E414B;background-image:linear-gradient(rgba(143,208,245,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(143,208,245,.08) 1px,transparent 1px);background-size:20px 20px;display:grid;place-items:center;overflow:hidden}
.slot svg{width:42%;max-width:150px;height:auto;stroke:var(--ice);fill:none;stroke-width:1.6;opacity:.9}
.slot .tag{position:absolute;left:10px;top:10px;font:500 12px/1.2 var(--body);color:#1F2D35;background:var(--ice);padding:4px 8px;border-radius:2px}

.slot.has-photo{background:#1B272E}
.slot.has-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}

/* Tech */
.tech{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:44px}
.tech-card{background:var(--surface);border:1px solid var(--line);display:grid;grid-template-rows:auto 1fr}
.tech-card .media{aspect-ratio:16/9}
.tech-card .body{padding:28px}
.tech-card h3{font-size:30px;color:var(--text)}
.tech-card .kind{color:var(--muted);font-size:15px;margin:4px 0 14px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 0;padding:0;list-style:none}
.chips li{font:600 14px/1 var(--body);padding:8px 10px;border:1px solid var(--line);color:var(--text);background:var(--paper)}
.chips-group + .chips-group{margin-top:14px}
.chips-label{font-size:14px;color:var(--muted);margin:16px 0 0}

/* Gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:44px 0 0;padding:0;list-style:none}
.gallery figure{margin:0}
.gallery .slot{aspect-ratio:4/3}
.gallery figcaption{margin-top:10px}
.gallery figcaption strong{display:block;font:600 19px/1.2 var(--head);color:var(--ice)}
.gallery figcaption span{font-size:14px;color:var(--on-dark-muted)}
.gallery-close{margin-top:40px;max-width:70ch;color:var(--on-dark-muted)}

/* Process */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin:44px 0 0;padding:0;list-style:none;counter-reset:s}
.steps li{counter-increment:s;border-top:2px solid var(--slate);padding-top:18px}
.steps li::before{content:counter(s);font:700 44px/1 var(--head);color:var(--blue);display:block;margin-bottom:10px}
:root[data-theme="dark"] .steps li::before{color:var(--sky)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .steps li::before{color:var(--sky)}}
.steps h3{font-size:24px;margin-bottom:6px}
.steps p{color:var(--muted);font-size:16px;margin:0}

/* About */
.about{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.about p{color:var(--muted)}
.store{background:var(--surface);border:1px solid var(--line);padding:28px}
.store h3{font-size:26px;margin-bottom:8px}
.store p{color:var(--muted);font-size:16px}

/* Contact */
.contact-grid form,.contact-grid .info{max-width:860px}
form{margin-top:36px;background:var(--graphite-2);padding:32px;border-top:3px solid var(--sky)}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:18px 20px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
label{font:600 15px var(--body);color:var(--on-dark)}
label .opt{font-weight:400;color:var(--on-dark-muted)}
input,select,textarea{font:400 16px/1.4 var(--body);color:#1F2D35;background:#fff;border:1.5px solid #9FB2BC;border-radius:4px;padding:12px 14px;width:100%}
textarea{min-height:140px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:3px solid var(--sky);outline-offset:1px;border-color:var(--blue)}
.field [aria-invalid="true"]{border-color:#E5484D}
.err{color:#FFB4B6;font-size:14px;min-height:0}
.form-note{color:var(--on-dark-muted);font-size:14px;margin:18px 0 0}
.form-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin-top:22px}
.fallback{display:none;margin-top:22px;padding:20px;background:var(--graphite);border:1px solid var(--line-dark)}
.fallback.show{display:block}
.fallback pre{white-space:pre-wrap;font:400 14px/1.5 var(--body);color:var(--on-dark);background:#16222A;padding:14px;margin:12px 0;max-height:220px;overflow:auto}
.fallback p{color:var(--on-dark-muted);font-size:15px;margin:0}
.info{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:36px;padding-top:28px;border-top:1px solid var(--line-dark)}
.info h3{color:var(--ice);font-size:22px;margin-bottom:8px}
.info p,.info a{color:var(--on-dark-muted);font-size:16px}
.info a:hover{color:var(--ice)}
.info ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}

/* Footer */
.site-footer{background:#18252C;color:var(--on-dark-muted);padding:44px 0 36px;font-size:15px}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:24px 48px;align-items:center;justify-content:space-between}
.site-footer nav{display:flex;flex-wrap:wrap;gap:6px 22px}
.site-footer a{text-decoration:none;color:var(--on-dark)}
.site-footer a:hover{color:var(--ice)}
.foot-logo{background:#fff;padding:8px 12px;border-radius:4px}
.foot-logo img{height:34px;width:auto}

/* Mobile */
.menu-btn{display:none;margin-left:auto;background:transparent;border:1.5px solid #B9C6CD;border-radius:4px;padding:9px 12px;font:600 15px var(--body);color:#2C3D47;cursor:pointer;align-items:center;gap:8px}
.menu-btn span{display:block;width:18px;height:2px;background:currentColor;box-shadow:0 6px 0 currentColor,0 -6px 0 currentColor}
.tabbar{display:none}
@media (max-width:980px){
  .hero .wrap{grid-template-columns:1fr;padding-top:48px;padding-bottom:56px}
  .build{justify-self:center;max-width:420px}
  .services,.tech{grid-template-columns:minmax(0,1fr)}
  .service{display:grid;grid-template-columns:minmax(0,40%) 1fr}
  .service .media{aspect-ratio:auto;min-height:100%}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr 1fr}
  .about{grid-template-columns:1fr;gap:32px}
  .detail-row{grid-template-columns:1fr 1fr}
  .detail-row h4{grid-column:1/-1}
}
@media (max-width:820px){
  .nav,.header-cta{display:none}
  .menu-btn{display:inline-flex}
  .nav.open{display:flex;flex-direction:column;position:absolute;left:0;right:0;top:72px;background:#fff;border-bottom:1px solid #DCE3E7;padding:8px 16px 16px}
  .nav.open a{padding:14px 8px;font-size:17px;border-bottom:1px solid #EEF2F4}
  .tabbar{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:60;background:#fff;border-top:1px solid #DCE3E7;padding-bottom:env(safe-area-inset-bottom,0px)}
  .tabbar a{display:flex;flex-direction:column;align-items:center;gap:3px;padding:9px 4px 10px;font:600 12px/1.1 var(--body);color:#3B4E59;text-decoration:none}
  .tabbar svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8}
  .tabbar a.cta{color:#fff;background:var(--blue)}
  .tabbar a[aria-current="true"]:not(.cta){color:var(--blue)}
  body{padding-bottom:64px}
  .needs{grid-template-columns:1fr}
  .need,.need + .need{padding:22px 0;border-right:0;border-bottom:1px solid var(--line)}
  .info{grid-template-columns:1fr}
}
@media (max-width:620px){
  .section{padding:64px 0}
  .wrap{padding:0 18px}
  .service{display:flex;flex-direction:column}
  .service .media{aspect-ratio:16/10;min-height:0}
  .fields{grid-template-columns:1fr}
  form{padding:22px}
  .steps{grid-template-columns:1fr}
  .detail-row{grid-template-columns:1fr;gap:14px;padding:22px}
  .gallery{gap:14px}
  .gallery figcaption strong{font-size:17px}
  .brand img{height:40px}
}

/* WhatsApp flotante (opcional) */
.wa-float{position:fixed;right:18px;bottom:calc(18px + env(safe-area-inset-bottom,0px));z-index:70;width:56px;height:56px;border-radius:50%;background:#25D366;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(0,0,0,.28)}
.wa-float svg{width:30px;height:30px;fill:#fff}
@media (max-width:820px){.wa-float{bottom:calc(76px + env(safe-area-inset-bottom,0px))}}