:root{
  --ink:#0C1B26;
  --ink-2:#16303F;
  --paper:#F5F7F8;
  --white:#FFFFFF;
  --steel:#54646F;
  --hairline:#DDE4E8;
  --glp:#E8930C;      /* GLP — ámbar */
  --gn:#2E93A6;       /* Gas Natural — azul llama */
  --elec:#F2C230;     /* Electricidad — amarillo */
  --accent:var(--glp);
  --max:1160px;
  --radius:6px;
  --font-display:"Archivo",sans-serif;
  --font-body:"IBM Plex Sans",sans-serif;
  --font-mono:"IBM Plex Mono",monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  font-size:16.5px;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--glp);color:var(--ink)}
a{color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(245,247,248,.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--hairline);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand-mark{display:flex;flex-direction:column;gap:3px;width:22px}
.brand-mark span{height:3px;border-radius:2px}
.brand-mark span:nth-child(1){background:var(--glp);width:100%}
.brand-mark span:nth-child(2){background:var(--gn);width:72%}
.brand-mark span:nth-child(3){background:var(--elec);width:86%}
.brand-name{
  font-family:var(--font-display);
  font-weight:800;font-size:1.05rem;letter-spacing:.14em;
}
.brand-name b{font-weight:800}
.brand-name span{font-weight:500;color:var(--steel)}
nav ul{display:flex;gap:28px;list-style:none;align-items:center}
nav a{
  text-decoration:none;font-size:.92rem;font-weight:500;color:var(--ink-2);
  padding:4px 0;border-bottom:2px solid transparent;transition:border-color .2s;
}
nav a:hover{border-color:var(--glp)}
.nav-cta{
  background:var(--ink);color:#fff !important;padding:9px 18px !important;
  border-radius:var(--radius);border:none !important;font-weight:600;
  transition:background .2s;
}
.nav-cta:hover{background:var(--ink-2)}
.menu-btn{display:none;background:none;border:1px solid var(--hairline);border-radius:var(--radius);padding:8px 10px;font-family:var(--font-mono);font-size:.8rem;cursor:pointer;color:var(--ink)}

/* ---------- hero ---------- */
.hero{padding:96px 0 88px;position:relative;overflow:hidden}
.eyebrow{
  font-family:var(--font-mono);font-size:.78rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--steel);margin-bottom:22px;
}
.eyebrow i{font-style:normal;color:var(--glp)}
.hero h1{
  font-family:var(--font-display);
  font-weight:850;
  font-stretch:112%;
  font-size:clamp(2.4rem,5.4vw,4.3rem);
  line-height:1.03;
  letter-spacing:-.015em;
  max-width:15ch;
  text-wrap:balance;
}
.hero h1 em{font-style:normal;color:var(--steel);font-weight:600;font-stretch:100%}
.hero p.lede{
  margin-top:26px;max-width:52ch;font-size:1.12rem;color:var(--ink-2);
}
.hero-ctas{margin-top:36px;display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-block;text-decoration:none;font-weight:600;font-size:.98rem;
  padding:13px 26px;border-radius:var(--radius);transition:transform .15s, background .2s;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--ink-2)}
.btn-ghost{border:1.5px solid var(--ink);color:var(--ink)}
.btn-ghost:hover{background:#fff}
/* energy lines — signature */
.energy-lines{margin-top:72px;display:flex;flex-direction:column;gap:14px}
.eline{display:grid;grid-template-columns:150px 1fr auto;align-items:center;gap:18px}
.eline .lbl{font-family:var(--font-mono);font-size:.8rem;letter-spacing:.1em;color:var(--ink-2)}
.eline .track{height:3px;background:var(--hairline);border-radius:2px;position:relative;overflow:hidden}
.eline .track::after{
  content:"";position:absolute;inset:0;border-radius:2px;
  background:var(--c);transform-origin:left;transform:scaleX(0);
  animation:draw 1.1s cubic-bezier(.6,0,.2,1) forwards;
  animation-delay:var(--d);
}
.eline .unit{font-family:var(--font-mono);font-size:.75rem;color:var(--steel)}
@keyframes draw{to{transform:scaleX(1)}}

/* ---------- section base ---------- */
section{padding:88px 0}
.sec-head{margin-bottom:52px;max-width:640px}
.sec-head h2{
  font-family:var(--font-display);font-weight:800;font-stretch:108%;
  font-size:clamp(1.7rem,3.2vw,2.4rem);line-height:1.12;letter-spacing:-.01em;
}
.sec-head p{margin-top:14px;color:var(--steel)}

/* ---------- energéticos ---------- */
#energeticos{background:var(--white);border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline)}
.energy-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;max-width:920px}
.ecard{
  border:1px solid var(--hairline);border-radius:var(--radius);
  padding:30px 26px 28px;background:var(--paper);
  border-top:4px solid var(--c);
  transition:transform .2s, box-shadow .2s;
}
.ecard:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(12,27,38,.08)}
.ecard .tag{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--c);font-weight:500;
}
.ecard h3{font-family:var(--font-display);font-weight:750;font-size:1.28rem;margin:10px 0 12px}
.ecard p{font-size:.95rem;color:var(--ink-2)}
.ecard ul{margin-top:16px;list-style:none}
.ecard li{
  font-size:.88rem;color:var(--steel);padding:7px 0 7px 18px;position:relative;
  border-top:1px solid var(--hairline);
}
.ecard li::before{content:"";position:absolute;left:0;top:50%;width:8px;height:2px;background:var(--c)}
.energy-note{
  margin-top:26px;font-size:.92rem;color:var(--steel);
  font-family:var(--font-mono);
}
.energy-note b{color:var(--ink);font-weight:500}

/* ---------- cómo trabajamos ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step}
.step{position:relative;padding:26px 24px;border-left:2px solid var(--hairline)}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-family:var(--font-mono);font-size:.8rem;color:var(--glp);
  display:block;margin-bottom:14px;letter-spacing:.1em;
}
.step h3{font-family:var(--font-display);font-weight:750;font-size:1.15rem;margin-bottom:10px}
.step p{font-size:.94rem;color:var(--ink-2)}

/* ---------- socios ---------- */
#nosotros{background:var(--ink);color:#EAF0F3}
#nosotros .sec-head h2{color:#fff}
#nosotros .sec-head p{color:#9FB0BB}
.partners{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.partner{
  border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);
  padding:30px 28px;background:rgba(255,255,255,.03);
}
.partner .avatar{
  width:56px;height:56px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-display);font-weight:800;font-size:1.1rem;
  background:linear-gradient(135deg,var(--glp),var(--gn));color:var(--ink);
  margin-bottom:18px;
}
.partner h3{font-family:var(--font-display);font-weight:750;font-size:1.25rem}
.partner .role{
  font-family:var(--font-mono);font-size:.76rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--glp);margin:6px 0 14px;
}
.partner p{font-size:.94rem;color:#B9C6CE}
.partner .li{
  display:inline-block;margin-top:16px;text-decoration:none;
  font-family:var(--font-mono);font-size:.78rem;letter-spacing:.08em;
  color:var(--glp);border:1px solid rgba(232,147,12,.4);border-radius:var(--radius);
  padding:7px 14px;transition:background .2s,color .2s;
}
.partner .li:hover{background:var(--glp);color:var(--ink)}

/* ---------- contacto ---------- */
#contacto{background:var(--white);border-top:1px solid var(--hairline)}
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:60px;align-items:start}
.contact-info h2{
  font-family:var(--font-display);font-weight:800;font-stretch:108%;
  font-size:clamp(1.7rem,3vw,2.3rem);line-height:1.12;
}
.contact-info p{margin-top:14px;color:var(--steel);max-width:42ch}
.contact-lines{margin-top:30px;display:flex;flex-direction:column;gap:12px}
.cline{display:flex;gap:14px;align-items:baseline;font-size:.96rem}
.cline .k{font-family:var(--font-mono);font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;color:var(--steel);min-width:80px}
.cline a{color:var(--ink);font-weight:500}
form{display:flex;flex-direction:column;gap:16px}
label{font-size:.85rem;font-weight:600;color:var(--ink-2)}
input,textarea{
  width:100%;margin-top:6px;padding:12px 14px;border:1px solid var(--hairline);
  border-radius:var(--radius);font-family:var(--font-body);font-size:.95rem;
  background:var(--paper);color:var(--ink);transition:border-color .2s;
}
input:focus,textarea:focus{outline:2px solid var(--glp);outline-offset:1px;border-color:var(--glp)}
textarea{resize:vertical;min-height:120px}
form .btn{align-self:flex-start;cursor:pointer;border:none;font-family:var(--font-body)}

/* ---------- footer ---------- */
footer{background:var(--ink);color:#7E909B;padding:34px 0;font-size:.85rem}
.foot{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.foot .brand-name{color:#EAF0F3;font-size:.9rem}
.foot .mono{font-family:var(--font-mono);font-size:.75rem;letter-spacing:.08em}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease, transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .energy-grid,.steps{grid-template-columns:1fr}
  .partners{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr;gap:40px}
  .eline{grid-template-columns:96px 1fr auto}
}
@media (max-width:700px){
  nav ul{display:none}
  nav ul.open{
    display:flex;position:absolute;top:64px;left:0;right:0;
    flex-direction:column;background:var(--paper);
    border-bottom:1px solid var(--hairline);padding:18px 24px;gap:16px;
  }
  .menu-btn{display:block}
  .hero{padding:64px 0 60px}
  section{padding:64px 0}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .eline .track::after{animation:none;transform:scaleX(1)}
  .reveal{opacity:1;transform:none;transition:none}
  .ecard,.btn{transition:none}
}