/* ============================================================
   RRG CONSTRUCTION — Sistema visual
   Concepto: "hoja de especificaciones" industrial.
   Firma: patrón de rombos perforados tomado del perfil de acero real.
   Base grafito + acento ámbar hi-vis + papel de plano.
   ============================================================ */

:root{
  /* Color */
  --graphite:#15171B;
  --graphite-2:#1B1E24;
  --steel:#23272F;
  --steel-2:#2B303A;
  --line:#31373F;
  --line-soft:#262b33;
  --concrete:#9BA2AB;
  --concrete-2:#C7CCD3;
  --paper:#E9EAED;
  --paper-2:#DEE0E4;
  --ink:#15171B;
  --white:#F5F6F8;
  --amber:#FF7A1A;
  --amber-2:#FF9A45;
  --amber-soft:rgba(255,122,26,.14);

  /* Type */
  --f-display:'Archivo',system-ui,sans-serif;
  --f-body:'Inter',system-ui,sans-serif;
  --f-mono:'Space Mono','Courier New',monospace;

  /* Layout */
  --wrap:1240px;
  --gutter:clamp(20px,5vw,64px);
  --radius:3px;

  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--f-body);
  background:var(--graphite);
  color:var(--concrete-2);
  line-height:1.6;
  font-size:16px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
::selection{background:var(--amber);color:var(--graphite)}

/* ---------- utilidades ---------- */
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(72px,10vw,140px)}

.eyebrow{
  font-family:var(--f-mono);
  font-size:12px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--amber);
  display:inline-flex;
  align-items:center;
  gap:12px;
}
.eyebrow::before{
  content:"";width:26px;height:1px;background:var(--amber);
}
.eyebrow.mute{color:var(--concrete)}
.eyebrow.mute::before{background:var(--concrete)}

h1,h2,h3{font-family:var(--f-display);font-weight:800;line-height:1.02;letter-spacing:-.02em;color:var(--white);text-transform:uppercase}
.h-xl{font-size:clamp(2.6rem,7vw,6.2rem);font-weight:900}
.h-lg{font-size:clamp(2rem,4.6vw,3.6rem)}
.h-md{font-size:clamp(1.4rem,2.6vw,2rem)}
.lead{font-size:clamp(1.05rem,1.6vw,1.25rem);color:var(--concrete-2);max-width:60ch}

.amber{color:var(--amber)}
.outline-word{color:transparent;-webkit-text-stroke:1.4px var(--amber);text-stroke:1.4px var(--amber)}

/* banda de rombos perforados = firma visual */
.perf{
  height:15px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='30' height='15' viewBox='0 0 30 15'%3E%3Cpath d='M15 1.6 L27 7.5 L15 13.4 L3 7.5 Z' fill='none' stroke='%23FF7A1A' stroke-width='1'/%3E%3Ccircle cx='15' cy='7.5' r='1' fill='%23FF7A1A'/%3E%3C/svg%3E");
  background-repeat:repeat-x;
  background-position:center;
  opacity:.9;
}
.perf.steel{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='30' height='15' viewBox='0 0 30 15'%3E%3Cpath d='M15 1.6 L27 7.5 L15 13.4 L3 7.5 Z' fill='none' stroke='%233b434d' stroke-width='1'/%3E%3Ccircle cx='15' cy='7.5' r='1' fill='%233b434d'/%3E%3C/svg%3E");
  opacity:1;
}

/* botones */
.btn{
  --bg:var(--amber);--fg:var(--graphite);
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--f-mono);font-size:13px;font-weight:700;
  letter-spacing:.08em;text-transform:uppercase;
  padding:16px 26px;background:var(--bg);color:var(--fg);
  border-radius:var(--radius);
  transition:transform .3s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease);
  position:relative;
}
.btn:hover{transform:translateY(-3px);box-shadow:0 12px 28px -12px rgba(255,122,26,.6)}
.btn:active{transform:translateY(0)}
.btn .arrow{transition:transform .3s var(--ease)}
.btn:hover .arrow{transform:translate(4px,-4px)}
.btn.ghost{--bg:transparent;--fg:var(--white);border:1px solid var(--line);}
.btn.ghost:hover{--bg:var(--steel);box-shadow:none;border-color:var(--concrete)}
.btn.dark{--bg:var(--graphite);--fg:var(--white)}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}
.reveal.d2{transition-delay:.16s}
.reveal.d3{transition-delay:.24s}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1!important;transform:none!important}
}

/* ============================================================
   NAV
   ============================================================ */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:60;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px var(--gutter);
  transition:background .4s var(--ease),padding .4s var(--ease),border-color .4s var(--ease);
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(21,23,27,.86);
  backdrop-filter:blur(12px);
  padding-block:12px;
  border-bottom:1px solid var(--line-soft);
}
.brand{display:flex;align-items:center;gap:12px}
.brand svg{width:38px;height:38px;flex:none}
.brand .word{font-family:var(--f-display);font-weight:900;font-size:22px;letter-spacing:.04em;color:var(--white);line-height:1}
.brand .tag{font-family:var(--f-mono);font-size:8.5px;letter-spacing:.28em;color:var(--concrete);text-transform:uppercase;display:block;margin-top:3px}

.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{
  font-family:var(--f-mono);font-size:12.5px;letter-spacing:.06em;
  text-transform:uppercase;color:var(--concrete-2);
  position:relative;padding:4px 0;transition:color .25s var(--ease);
}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--amber);transition:width .3s var(--ease)}
.nav-links a:hover{color:var(--white)}
.nav-links a:hover::after{width:100%}
.nav-cta{display:flex;align-items:center;gap:16px}

.burger{display:none;width:44px;height:44px;flex-direction:column;justify-content:center;gap:5px;align-items:center;border:1px solid var(--line);border-radius:var(--radius)}
.burger span{width:20px;height:2px;background:var(--white);transition:transform .3s var(--ease),opacity .2s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media (max-width:960px){
  .nav-links{
    position:fixed;inset:0 0 0 auto;width:min(80vw,340px);
    flex-direction:column;justify-content:center;gap:26px;
    background:var(--graphite-2);border-left:1px solid var(--line);
    transform:translateX(100%);transition:transform .4s var(--ease);
    padding:40px;
  }
  .nav-links.open{transform:none}
  .nav-links a{font-size:16px}
  .burger{display:flex}
  .nav-cta .btn:not(.burger){display:none}
}

/* ============================================================
   HERO / carrusel
   ============================================================ */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden}
.hero-slides{position:absolute;inset:0}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1.1s var(--ease);}
.hero-slide.active{opacity:1}
.hero-slide img{width:100%;height:100%;object-fit:cover;transform:scale(1.06);transition:transform 6s linear}
.hero-slide.active img{transform:scale(1)}
.hero-slide::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(21,23,27,.55) 0%,rgba(21,23,27,.15) 32%,rgba(21,23,27,.72) 72%,rgba(21,23,27,.96) 100%),
    linear-gradient(90deg,rgba(21,23,27,.7) 0%,rgba(21,23,27,0) 60%);
}
.hero-inner{position:relative;z-index:3;width:100%;padding-bottom:clamp(48px,8vw,96px);padding-top:140px}
.hero-eyebrow{margin-bottom:22px}
.hero h1{margin-bottom:20px;max-width:16ch}
.hero-cap{
  font-family:var(--f-mono);font-size:13px;letter-spacing:.05em;color:var(--concrete-2);
  max-width:46ch;margin-bottom:34px;min-height:44px;
}
.hero-cap b{color:var(--amber);font-weight:700}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}

/* controles carrusel */
.hero-nav{
  position:absolute;z-index:4;right:var(--gutter);bottom:clamp(48px,8vw,96px);
  display:flex;align-items:center;gap:18px;
}
.hero-dots{display:flex;gap:10px}
.hero-dots button{width:34px;height:3px;background:rgba(255,255,255,.25);border-radius:2px;transition:background .3s}
.hero-dots button.active{background:var(--amber)}
.hero-count{font-family:var(--f-mono);font-size:12px;letter-spacing:.1em;color:var(--concrete-2)}
.hero-count b{color:var(--white)}
@media (max-width:640px){.hero-nav{left:var(--gutter);right:auto}}

.scroll-hint{
  position:absolute;left:var(--gutter);bottom:clamp(48px,8vw,96px);z-index:4;
  font-family:var(--f-mono);font-size:11px;letter-spacing:.2em;color:var(--concrete);
  text-transform:uppercase;display:flex;align-items:center;gap:10px;
}
.scroll-hint .bar{width:1px;height:34px;background:linear-gradient(var(--amber),transparent);animation:drop 1.8s var(--ease) infinite}
@keyframes drop{0%{transform:scaleY(.2);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}50.1%{transform-origin:bottom}100%{transform:scaleY(.2);transform-origin:bottom}}
@media (max-width:640px){.scroll-hint{display:none}}

/* ============================================================
   STATS
   ============================================================ */
.stats{background:var(--graphite-2);border-block:1px solid var(--line-soft)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-soft)}
.stat{background:var(--graphite-2);padding:clamp(30px,4vw,52px) clamp(20px,3vw,40px)}
.stat .num{font-family:var(--f-display);font-weight:900;font-size:clamp(2.4rem,5vw,3.6rem);color:var(--white);line-height:1;letter-spacing:-.03em}
.stat .num .plus{color:var(--amber)}
.stat .lbl{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--concrete);margin-top:14px}
@media (max-width:820px){.stats-grid{grid-template-columns:repeat(2,1fr)}}

/* ============================================================
   SERVICIOS
   ============================================================ */
.services-head{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:end;margin-bottom:56px}
.services-head .lead{justify-self:end}
@media (max-width:820px){.services-head{grid-template-columns:1fr;gap:22px}.services-head .lead{justify-self:start}}

.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-soft);border:1px solid var(--line-soft)}
.svc{
  background:var(--graphite);padding:clamp(30px,3.4vw,46px);
  position:relative;overflow:hidden;transition:background .4s var(--ease);
  min-height:290px;display:flex;flex-direction:column;
}
.svc::before{content:"";position:absolute;left:0;top:0;height:2px;width:0;background:var(--amber);transition:width .45s var(--ease)}
.svc:hover{background:var(--graphite-2)}
.svc:hover::before{width:100%}
.svc .no{font-family:var(--f-mono);font-size:12px;letter-spacing:.14em;color:var(--amber);margin-bottom:26px}
.svc .ico{width:42px;height:42px;color:var(--amber);margin-bottom:22px;transition:transform .4s var(--ease)}
.svc:hover .ico{transform:translateY(-4px)}
.svc h3{font-size:1.35rem;font-weight:800;margin-bottom:12px;letter-spacing:-.01em}
.svc p{font-size:.95rem;color:var(--concrete);line-height:1.65}
@media (max-width:900px){.svc-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.svc-grid{grid-template-columns:1fr}}

/* ============================================================
   NOSOTROS
   ============================================================ */
.about{background:var(--paper);color:var(--ink)}
.about h2,.about .h-lg{color:var(--ink)}
.about .eyebrow{color:#b5560c}
.about .eyebrow::before{background:#b5560c}
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(40px,6vw,90px);align-items:center}
.about-copy p{color:#3a3f47;font-size:1.06rem;margin-top:22px;max-width:52ch}
.about-copy .h-lg{margin-top:20px}
.about-list{list-style:none;margin-top:34px;display:grid;gap:2px;background:var(--paper-2);border:1px solid var(--paper-2)}
.about-list li{background:var(--paper);padding:16px 18px;display:flex;align-items:center;gap:14px;font-family:var(--f-mono);font-size:13px;letter-spacing:.04em;color:var(--ink);text-transform:uppercase}
.about-list li svg{width:18px;height:18px;color:var(--amber);flex:none}
.about-figure{position:relative}
.about-figure img{width:100%;height:clamp(360px,52vw,560px);object-fit:cover;border-radius:var(--radius)}
.about-figure .badge{
  position:absolute;left:-1px;bottom:26px;background:var(--graphite);color:var(--white);
  padding:20px 26px;border-left:3px solid var(--amber);
}
.about-figure .badge .n{font-family:var(--f-display);font-weight:900;font-size:2.2rem;line-height:1}
.about-figure .badge .t{font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--concrete);margin-top:6px}
@media (max-width:820px){.about-grid{grid-template-columns:1fr;gap:44px}}

/* ============================================================
   PROCESO
   ============================================================ */
.proc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(18px,2.4vw,30px);margin-top:56px;counter-reset:step}
.proc{padding-top:28px;border-top:1px solid var(--line);position:relative}
.proc::before{content:"";position:absolute;top:-1px;left:0;width:46px;height:3px;background:var(--amber)}
.proc .no{font-family:var(--f-mono);font-size:12px;letter-spacing:.16em;color:var(--amber);margin-bottom:20px}
.proc h3{font-size:1.3rem;font-weight:800;margin-bottom:12px}
.proc p{font-size:.94rem;color:var(--concrete)}
@media (max-width:820px){.proc-grid{grid-template-columns:repeat(2,1fr);gap:34px}}
@media (max-width:480px){.proc-grid{grid-template-columns:1fr}}

/* ============================================================
   GALERÍA + lightbox
   ============================================================ */
.gallery{background:var(--graphite-2)}
.gal-head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;flex-wrap:wrap;margin-bottom:44px}
.gal-grid{columns:3;column-gap:14px}
@media (max-width:900px){.gal-grid{columns:2}}
@media (max-width:560px){.gal-grid{columns:1}}
.gal-item{
  break-inside:avoid;margin-bottom:14px;position:relative;overflow:hidden;
  border-radius:var(--radius);cursor:pointer;background:var(--steel);
  border:1px solid transparent;transition:border-color .3s var(--ease);
}
.gal-item img{width:100%;height:auto;transition:transform .7s var(--ease),filter .5s;filter:grayscale(.15)}
.gal-item:hover{border-color:var(--amber)}
.gal-item:hover img{transform:scale(1.05);filter:grayscale(0)}
.gal-item .plus{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:rgba(21,23,27,.35);opacity:0;transition:opacity .3s var(--ease);
}
.gal-item:hover .plus{opacity:1}
.gal-item .plus svg{width:44px;height:44px;color:var(--white)}
.gal-tag{
  position:absolute;left:10px;top:10px;font-family:var(--f-mono);font-size:10px;letter-spacing:.1em;
  background:rgba(21,23,27,.7);color:var(--amber);padding:4px 8px;border-radius:2px;text-transform:uppercase;
  opacity:0;transition:opacity .3s;
}
.gal-item:hover .gal-tag{opacity:1}

.lightbox{
  position:fixed;inset:0;z-index:100;background:rgba(11,12,14,.96);
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity .35s var(--ease);
  padding:clamp(16px,4vw,60px);
}
.lightbox.open{opacity:1;pointer-events:auto}
.lightbox img{max-width:100%;max-height:86vh;object-fit:contain;border-radius:var(--radius);box-shadow:0 30px 80px -30px #000}
.lb-close{position:absolute;top:22px;right:26px;width:48px;height:48px;border:1px solid var(--line);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--white);transition:.25s var(--ease)}
.lb-close:hover{background:var(--amber);color:var(--graphite);border-color:var(--amber);transform:rotate(90deg)}
.lb-arrow{position:absolute;top:50%;transform:translateY(-50%);width:56px;height:56px;border:1px solid var(--line);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--white);transition:.25s var(--ease)}
.lb-arrow:hover{background:var(--amber);color:var(--graphite);border-color:var(--amber)}
.lb-prev{left:clamp(10px,3vw,40px)}
.lb-next{right:clamp(10px,3vw,40px)}
.lb-counter{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);font-family:var(--f-mono);font-size:12px;letter-spacing:.14em;color:var(--concrete-2)}
.lb-counter b{color:var(--white)}
@media (max-width:600px){.lb-arrow{width:44px;height:44px}}

/* ============================================================
   COTIZACIÓN
   ============================================================ */
.quote{background:var(--graphite);position:relative;overflow:hidden}
.quote::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;
  background:radial-gradient(circle,var(--amber-soft),transparent 70%);
}
.quote-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(40px,6vw,80px);position:relative;z-index:2}
.quote-copy .h-lg{margin:20px 0}
.quote-copy .lead{color:var(--concrete)}
.quote-perks{margin-top:34px;display:grid;gap:16px}
.quote-perks li{list-style:none;display:flex;gap:14px;align-items:flex-start;font-size:.98rem;color:var(--concrete-2)}
.quote-perks svg{width:20px;height:20px;color:var(--amber);flex:none;margin-top:2px}

.form{
  background:var(--graphite-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:clamp(26px,3.4vw,44px);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px;position:relative}
.field.full{grid-column:1/-1}
.field label{display:block;font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--concrete);margin-bottom:9px}
.field input,.field select,.field textarea{
  width:100%;background:var(--graphite);border:1px solid var(--line);border-radius:var(--radius);
  color:var(--white);font-family:var(--f-body);font-size:15px;padding:14px 15px;
  transition:border-color .25s var(--ease),background .25s;
}
.field textarea{resize:vertical;min-height:110px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--amber);background:#191c22}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%239BA2AB' stroke-width='2'%3E%3Cpath d='M3 5l4 4 4-4'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 15px center}
.form .btn{width:100%;justify-content:center;margin-top:6px}
.form-note{font-family:var(--f-mono);font-size:11px;color:var(--concrete);margin-top:16px;text-align:center;letter-spacing:.03em}
.form-ok{display:none;align-items:center;gap:10px;color:var(--amber);font-family:var(--f-mono);font-size:13px;margin-top:14px;justify-content:center}
.form-ok.show{display:flex}
@media (max-width:820px){.quote-grid{grid-template-columns:1fr}.form-row{grid-template-columns:1fr}}

/* ============================================================
   CONTACTO + MAPA
   ============================================================ */
.contact{background:var(--graphite-2);border-top:1px solid var(--line-soft)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.contact-info{padding:clamp(30px,4vw,54px);display:flex;flex-direction:column;gap:2px}
.contact-info .eyebrow{margin-bottom:22px}
.ci-row{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line-soft)}
.ci-row:last-child{border-bottom:none}
.ci-row svg{width:22px;height:22px;color:var(--amber);flex:none;margin-top:3px}
.ci-row .k{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--concrete);margin-bottom:5px}
.ci-row .v{color:var(--white);font-size:1.02rem}
.ci-row .v a:hover{color:var(--amber)}
.map-embed{min-height:360px;position:relative;filter:grayscale(.3) contrast(1.05)}
.map-embed iframe{width:100%;height:100%;border:0;position:absolute;inset:0}
@media (max-width:820px){.contact-grid{grid-template-columns:1fr}.map-embed{min-height:300px}}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{background:var(--graphite);padding-block:clamp(50px,7vw,80px) 30px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid var(--line-soft)}
.footer .brand{margin-bottom:20px}
.footer-blurb{color:var(--concrete);max-width:36ch;font-size:.96rem}
.footer-col h4{font-family:var(--f-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--amber);margin-bottom:20px;font-weight:700}
.footer-col a,.footer-col p{display:block;color:var(--concrete-2);font-size:.96rem;margin-bottom:12px;transition:color .2s}
.footer-col a:hover{color:var(--white)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:26px;font-family:var(--f-mono);font-size:11.5px;letter-spacing:.06em;color:var(--concrete)}
.footer-bottom a:hover{color:var(--amber)}
@media (max-width:760px){.footer-top{grid-template-columns:1fr;gap:34px}}

/* ---------- selector de idioma ---------- */
.lang-toggle{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--f-mono);font-size:12px;font-weight:700;letter-spacing:.1em;
  color:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:9px 13px;transition:border-color .25s var(--ease),background .25s var(--ease);
}
.lang-toggle:hover{border-color:var(--amber);background:var(--steel)}
.lang-toggle svg{width:14px;height:14px;color:var(--amber)}

/* ---------- botones flotantes (desktop) ---------- */
.fab-stack{position:fixed;right:22px;bottom:22px;z-index:70;display:flex;flex-direction:column;gap:12px}
.fab{
  width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);position:relative;
}
.fab svg{width:28px;height:28px;color:#fff}
.fab.wa{background:#25D366;box-shadow:0 10px 30px -8px rgba(37,211,102,.6)}
.fab.call{background:var(--amber);box-shadow:0 10px 30px -8px rgba(255,122,26,.6)}
.fab.call svg{color:var(--graphite)}
.fab:hover{transform:scale(1.09)}
.fab::after{
  content:attr(data-label);position:absolute;right:68px;top:50%;transform:translateY(-50%);
  background:var(--graphite-2);color:var(--white);font-family:var(--f-mono);font-size:11px;
  letter-spacing:.08em;padding:7px 11px;border-radius:var(--radius);white-space:nowrap;
  border:1px solid var(--line);opacity:0;pointer-events:none;transition:opacity .25s var(--ease);
}
.fab:hover::after{opacity:1}

/* ---------- dock inferior fijo (móvil) ---------- */
.mobile-dock{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:75;
  grid-template-columns:1fr 1fr;gap:1px;background:var(--line);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom,0);
}
.mobile-dock a{
  display:flex;align-items:center;justify-content:center;gap:9px;padding:15px 10px;
  font-family:var(--f-mono);font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
}
.mobile-dock a svg{width:19px;height:19px}
.dock-call{background:var(--amber);color:var(--graphite)}
.dock-wa{background:#25D366;color:#fff}

@media (max-width:760px){
  body{padding-bottom:56px}
  .fab-stack{display:none}
  .mobile-dock{display:grid}
}