/* Grúas Ememca · sitio web
   Dirección: obra en marcha. Tinta casi negra, crema de plano, rojo de pluma.
   Tipos: Barlow Condensed (rótulos de obra) + Barlow (texto). */
:root{
  --ink:#151413; --ink-2:#2A2724; --paper:#F4F2EE; --paper-2:#E9E5DE; --white:#FFFFFF;
  --red:#C8151C; --red-dk:#A31117; --red-lt:#F2D9D9; --muted:#5E5952; --line:#D8D2C8;
  --on-dark:#EDEAE4; --on-dark-2:#B5AFA5;
  --display:'Barlow Condensed','Arial Narrow',Arial,sans-serif;
  --body:'Barlow',Arial,Helvetica,sans-serif;
  --wrap:1180px; --r:6px;
  color-scheme:light;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.55}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--display);font-weight:800;text-transform:uppercase;line-height:1.02;margin:0;text-wrap:balance;letter-spacing:.2px}
h2{font-size:clamp(34px,5vw,56px)}
h3{font-size:24px;letter-spacing:.4px}
p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:max(18px,env(safe-area-inset-left,0px));padding-right:max(18px,env(safe-area-inset-right,0px))}
.eyebrow{font-family:var(--body);font-weight:700;font-size:13px;letter-spacing:3px;text-transform:uppercase;color:var(--red);display:block;margin-bottom:12px}
.lead{font-size:19px;color:var(--muted);max-width:62ch}
section{padding-block:clamp(64px,9vw,112px)}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.sec-head .lead{max-width:52ch}
:focus-visible{outline:3px solid var(--red);outline-offset:3px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.hero video.bg{display:none}.hero{background:#151413 url(img/hero-tandem.jpg) center/cover}*{transition:none!important;animation:none!important}}

/* Botones */
.btn{display:inline-flex;align-items:center;gap:10px;border:0;border-radius:var(--r);padding:14px 22px;font:700 16px var(--body);text-decoration:none;cursor:pointer;transition:background .15s,transform .15s}
.btn-red{background:var(--red);color:#fff}.btn-red:hover{background:var(--red-dk)}
.btn-line{background:transparent;color:inherit;box-shadow:inset 0 0 0 2px currentColor}.btn-line:hover{background:rgba(255,255,255,.08)}
.btn-dark{background:var(--ink);color:#fff}.btn-dark:hover{background:var(--ink-2)}
.btn svg{width:20px;height:20px;flex:none}

/* Barra superior */
.topbar{background:var(--ink);color:var(--on-dark-2);font-size:14px}
.topbar .wrap{display:flex;gap:20px;justify-content:space-between;padding-block:8px;flex-wrap:wrap}
.topbar a{text-decoration:none}.topbar a:hover{color:#fff}
.topbar span{display:inline-flex;gap:18px;flex-wrap:wrap}
header.nav{position:sticky;top:0;z-index:50;background:rgba(244,242,238,.96);backdrop-filter:saturate(1.2) blur(8px);border-bottom:1px solid var(--line)}
header.nav .wrap{display:flex;align-items:center;gap:20px;padding-block:10px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand img{width:52px;height:52px;object-fit:contain}
.brand b{font-family:var(--display);font-size:24px;font-weight:800;text-transform:uppercase;line-height:1}
.brand small{display:block;font-size:12px;color:var(--muted);font-weight:600;letter-spacing:1px;text-transform:uppercase}
.menu{margin-left:auto;display:flex;align-items:center;gap:4px}
.menu a{text-decoration:none;font-weight:600;font-size:15px;padding:10px 12px;border-radius:var(--r)}
.menu a:hover{background:var(--paper-2)}
.menu .btn{margin-left:8px;padding:11px 18px}
.burger{display:none;margin-left:auto;background:none;border:0;padding:8px;cursor:pointer}
.burger span{display:block;width:26px;height:3px;background:var(--ink);margin:5px 0;border-radius:2px}
@media (max-width:900px){
  .burger{display:block}
  .menu{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;background:var(--paper);border-bottom:1px solid var(--line);padding:10px 18px 18px}
  .menu.open{display:flex}
  .menu .btn{margin:8px 0 0;justify-content:center}
  .topbar .hide-m{display:none}
}

/* Hero */
.hero{position:relative;color:#fff;background:var(--ink);padding:0;overflow:hidden}
.hero .bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 40%}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,14,13,.92) 0%,rgba(15,14,13,.72) 45%,rgba(15,14,13,.15) 100%)}
.hero .wrap{position:relative;z-index:1;padding-block:clamp(72px,11vw,140px) clamp(56px,8vw,96px)}
.hero h1{font-size:clamp(46px,8vw,96px);max-width:12ch}
.hero h1 em{font-style:normal;color:#FF4B50}
.hero p.lead{color:#E2DED7;margin-top:22px;font-size:clamp(18px,2vw,21px)}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:34px}
.facts{position:relative;z-index:1;background:var(--red);color:#fff}
.facts .wrap{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0}
.fact{padding:22px 18px;border-left:1px solid rgba(255,255,255,.25)}
.fact:first-child{border-left:0;padding-left:0}
.fact b{display:block;font-family:var(--display);font-size:clamp(30px,4vw,44px);font-weight:800;line-height:1;font-variant-numeric:tabular-nums}
.fact span{font-size:14px;font-weight:600;opacity:.92}
@media (max-width:700px){.facts .wrap{grid-template-columns:repeat(2,minmax(0,1fr))}.fact:nth-child(3){border-left:0;padding-left:0}.fact{border-top:1px solid rgba(255,255,255,.2)}.fact:nth-child(-n+2){border-top:0}}

/* Servicios */
.svc-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2px;background:var(--line);border:2px solid var(--line);border-radius:var(--r);overflow:hidden}
.svc{background:var(--white);padding:30px 28px;display:flex;flex-direction:column;gap:10px;min-width:0}
.svc .ico{width:44px;height:44px;color:var(--red)}
.svc p{color:var(--muted)}
.svc .tag{margin-top:auto;padding-top:10px;font-size:14px;font-weight:700;color:var(--ink)}
@media (max-width:900px){.svc-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.svc-grid{grid-template-columns:minmax(0,1fr)}}

/* Flota */
#flota{background:var(--ink);color:var(--on-dark)}
#flota .lead{color:var(--on-dark-2)}
.fleet{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.crane{background:var(--ink-2);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;min-width:0}
.crane .ph{aspect-ratio:4/5;overflow:hidden;background:#000}
.crane .ph img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.crane:hover .ph img{transform:scale(1.04)}
.crane .bd{padding:20px;display:flex;flex-direction:column;gap:14px;flex:1}
.crane .cap{font-family:var(--display);font-size:46px;font-weight:800;line-height:.9;color:#fff}
.crane .cap small{font-size:20px;color:var(--on-dark-2);font-weight:700}
.crane h3{color:#fff}
.specs{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:15px;margin:0}
.specs dt{color:var(--on-dark-2)}.specs dd{margin:0;font-weight:600;font-variant-numeric:tabular-nums}
.crane .btn{margin-top:auto;justify-content:center;background:transparent;color:#fff;box-shadow:inset 0 0 0 2px #4A4540}
.crane .btn:hover{box-shadow:inset 0 0 0 2px var(--red);background:rgba(200,21,28,.12)}
.fleet-note{margin-top:22px;font-size:14px;color:var(--on-dark-2)}
@media (max-width:1000px){.fleet{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.fleet{grid-template-columns:minmax(0,1fr)}.crane .ph{aspect-ratio:4/3}}
.more{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:18px}
.more div{border:1px solid #3A3632;border-radius:var(--r);padding:18px 20px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:baseline}
.more b{font-family:var(--display);font-size:24px;text-transform:uppercase;color:#fff}
.more span{color:var(--on-dark-2);font-weight:600}
@media (max-width:600px){.more{grid-template-columns:minmax(0,1fr)}}

/* Tabla de carga (modal) */
dialog{border:0;padding:0;border-radius:var(--r);max-width:min(1000px,94vw);width:100%;background:var(--white);color:var(--ink)}
dialog::backdrop{background:rgba(10,9,8,.75)}
.dlg-h{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line)}
.dlg-h h3{font-size:26px}
.dlg-x{background:var(--ink);color:#fff;border:0;border-radius:50%;width:40px;height:40px;font-size:22px;cursor:pointer;flex:none}
.dlg-b{padding:14px;overflow:auto;max-height:78vh}
.dlg-b img{width:100%;height:auto;background:#fff}
.dlg-b p{font-size:14px;color:var(--muted);margin-top:10px}

/* Eliminación de tierra */
.earth{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.earth .pics{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.earth .pics img{width:100%;height:100%;object-fit:cover;border-radius:var(--r);aspect-ratio:3/4}
.earth .pics img:first-child{grid-row:span 2;aspect-ratio:auto;height:100%}
.buckets{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:26px 0}
.bucket{background:var(--white);border:1px solid var(--line);border-top:5px solid var(--red);border-radius:var(--r);padding:16px}
.bucket b{font-family:var(--display);font-size:38px;font-weight:800;line-height:1;display:block}
.bucket span{font-size:14px;color:var(--muted)}
.checks{list-style:none;padding:0;margin:0 0 28px;display:grid;gap:10px}
.checks li{display:flex;gap:12px;align-items:flex-start}
.checks li::before{content:"";flex:none;width:22px;height:22px;margin-top:2px;border-radius:50%;background:var(--red) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5 9-10'/%3E%3C/svg%3E") center/14px no-repeat}
@media (max-width:900px){.earth{grid-template-columns:minmax(0,1fr)}.earth .pics{order:2}}
@media (max-width:480px){.buckets{grid-template-columns:minmax(0,1fr)}}

/* Seguridad */
#seguridad{background:var(--paper-2)}
.safe{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.safe div{background:var(--white);border-radius:var(--r);padding:26px;display:flex;flex-direction:column;gap:10px;min-width:0}
.safe .ico{width:40px;height:40px;color:var(--red)}
.safe p{color:var(--muted);font-size:16px}
@media (max-width:900px){.safe{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.safe{grid-template-columns:minmax(0,1fr)}}

/* Trabajos */
.works{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-auto-rows:220px;gap:12px}
.work{position:relative;border-radius:var(--r);overflow:hidden;background:#000;margin:0}
.work img,.work video{width:100%;height:100%;object-fit:cover;opacity:.95;transition:transform .4s;display:block}
.work:hover img{transform:scale(1.04)}
.work figcaption{position:absolute;left:0;right:0;bottom:0;padding:40px 16px 14px;color:#fff;font-weight:700;background:linear-gradient(transparent,rgba(0,0,0,.82))}
.work figcaption small{display:block;font-weight:500;opacity:.85;font-size:14px}
.work.w2{grid-column:span 2;grid-row:span 2}
.work.h2{grid-row:span 2}
.work.wide{grid-column:span 2}
@media (max-width:900px){.works{grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:200px}}
@media (max-width:520px){.works{grid-template-columns:minmax(0,1fr)}.work.w2,.work.h2,.work.wide{grid-column:auto;grid-row:span 1}.works{grid-auto-rows:260px}}

/* Proceso */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;counter-reset:s;border-top:3px solid var(--ink)}
.step{padding:26px 22px 0 0;display:flex;flex-direction:column;gap:8px;min-width:0}
.step::before{counter-increment:s;content:counter(s,decimal-leading-zero);font-family:var(--display);font-size:52px;font-weight:800;color:var(--red);line-height:1}
.step p{color:var(--muted)}
@media (max-width:900px){.steps{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:20px}}
@media (max-width:520px){.steps{grid-template-columns:minmax(0,1fr)}}

/* Cotizar */
#cotizar{background:var(--ink);color:var(--on-dark)}
.quote{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
.quote .lead{color:var(--on-dark-2)}
.contact-list{list-style:none;padding:0;margin:28px 0 0;display:grid;gap:16px}
.contact-list li{display:flex;gap:14px;align-items:flex-start}
.contact-list svg{width:24px;height:24px;color:#FF4B50;flex:none;margin-top:2px}
.contact-list b{display:block;color:#fff}
.contact-list a{text-decoration:none}.contact-list a:hover{text-decoration:underline}
form.card{background:var(--white);color:var(--ink);border-radius:var(--r);padding:28px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
form.card .full{grid-column:1/-1}
form.card label{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:700;letter-spacing:.4px;text-transform:uppercase;color:var(--muted);min-width:0}
form.card input,form.card select,form.card textarea{font:500 16px var(--body);color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;width:100%;min-width:0}
form.card textarea{min-height:110px;resize:vertical}
form.card .hp{position:absolute;left:-9999px}
.form-actions{grid-column:1/-1;display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.form-msg{grid-column:1/-1;font-weight:600;font-size:15px}
.form-msg.ok{color:#1E7A46}.form-msg.err{color:var(--red)}
@media (max-width:900px){.quote{grid-template-columns:minmax(0,1fr)}}
@media (max-width:560px){form.card{grid-template-columns:minmax(0,1fr);padding:20px}}

/* Pie */
footer{background:#0D0C0B;color:var(--on-dark-2);font-size:15px;padding-block:48px 28px}
footer .cols{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:32px}
footer h4{font-family:var(--display);font-size:18px;text-transform:uppercase;letter-spacing:1px;color:#fff;margin:0 0 12px}
footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
footer a{text-decoration:none}footer a:hover{color:#fff}
footer .brand b{color:#fff}
footer .legal{border-top:1px solid #2A2724;margin-top:36px;padding-top:18px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px}
@media (max-width:900px){footer .cols{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){footer .cols{grid-template-columns:minmax(0,1fr)}}

/* WhatsApp flotante */
.wa-float{position:fixed;right:max(18px,env(safe-area-inset-right,0px));bottom:calc(18px + env(safe-area-inset-bottom,0px));z-index:60;width:60px;height:60px;border-radius:50%;background:#1FAF55;color:#fff;display:grid;place-items:center;box-shadow:0 6px 20px rgba(0,0,0,.3)}
.wa-float svg{width:32px;height:32px}

/* Fichas técnicas */
#fichas{background:var(--paper)}
.f-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-bottom:18px}
.f-tabs button{font:800 22px var(--display);text-transform:uppercase;text-align:left;background:var(--white);color:var(--ink);border:2px solid var(--line);border-radius:var(--r);padding:14px 16px;cursor:pointer;display:flex;flex-direction:column;gap:2px;min-width:0}
.f-tabs button small{font:600 14px var(--body);color:var(--muted);text-transform:none}
.f-tabs button[aria-selected="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}
.f-tabs button[aria-selected="true"] small{color:#FF6B6F}
.ficha{display:grid;grid-template-columns:.9fr 1.1fr;gap:0;background:var(--white);border-radius:var(--r);overflow:hidden;border:1px solid var(--line)}
.f-media{position:relative;background:#000;min-height:420px}
.f-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.f-dim{position:absolute;left:16px;bottom:16px;background:rgba(21,20,19,.88);color:#fff;border:0;border-radius:var(--r);padding:10px 14px;font:700 14px var(--body);cursor:pointer}
.f-data{padding:28px;display:flex;flex-direction:column;gap:18px;min-width:0}
.f-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap}
.f-head h3{font-size:clamp(34px,4vw,46px)}
.f-cap{font-family:var(--display);font-size:56px;font-weight:800;line-height:.9;color:var(--red)}
.f-cap small{font-size:22px;color:var(--muted)}
.f-table{overflow-x:auto}
.f-table table{width:100%;border-collapse:collapse;font-size:16px}
.f-table th,.f-table td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--paper-2);vertical-align:top}
.f-table tbody th{font-weight:500;color:var(--muted);width:46%}
.f-table td{font-weight:600;font-variant-numeric:tabular-nums}
.f-table tr.grp th{background:var(--paper);color:var(--ink);font-family:var(--display);font-size:17px;letter-spacing:1px;text-transform:uppercase;font-weight:800;padding-top:12px;border-bottom:2px solid var(--red)}
.f-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:auto}
@media (max-width:900px){.f-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}.ficha{grid-template-columns:minmax(0,1fr)}.f-media{min-height:0;aspect-ratio:4/3}}
@media (max-width:480px){.f-data{padding:20px}.f-table tbody th{width:50%}}

/* Animación al abrir una ficha */
@keyframes fichaIn{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:none}}
@keyframes photoIn{from{opacity:0;transform:scale(1.12)}to{opacity:1;transform:scale(1)}}
@keyframes rowIn{from{opacity:0;transform:translateX(-14px)}to{opacity:1;transform:none}}
@keyframes fadeOnly{from{opacity:0}to{opacity:1}}
@keyframes pulseTab{0%{box-shadow:0 0 0 0 rgba(200,21,28,.55)}100%{box-shadow:0 0 0 14px rgba(200,21,28,0)}}
.ficha.anim{animation:fichaIn .55s cubic-bezier(.2,.7,.2,1) both}
.ficha.anim .f-media img{animation:photoIn .9s cubic-bezier(.2,.7,.2,1) both}
.ficha.anim .f-table tr{animation:rowIn .45s ease-out both;animation-delay:calc(var(--i,0) * 45ms + 150ms)}
.ficha.anim .f-actions{animation:fichaIn .5s ease-out .5s both}
.f-tabs button.pulse{animation:pulseTab .7s ease-out}
.f-tabs button{transition:background .25s,color .25s,border-color .25s,transform .2s}
.f-tabs button:hover{transform:translateY(-2px)}
@media (prefers-reduced-motion:reduce){
  .ficha.anim,.ficha.anim .f-actions,.ficha.anim .f-table tr{animation:fadeOnly .35s ease-out both!important}
  .ficha.anim .f-media img{animation:fadeOnly .5s ease-out both!important}
}