/* INTERENERGÍA · hoja de estilos del sitio */
:root{
  --green:#227831;        /* verde del logotipo */
  --green-dark:#175a24;
  --green-deep:#0f3519;
  --green-soft:#eef6f0;
  --blue:#01a0e2;         /* azul del logotipo */
  --blue-dark:#0a6fa3;
  --blue-soft:#e9f6fd;
  --ink:#1b2a22;
  --muted:#5b6b62;
  --line:#dbe5de;
  --bg:#ffffff;
  --bg-alt:#f6f9f7;
  --warn:#fff4cc;
  --radius:14px;
  --shadow:0 6px 24px rgba(15,53,25,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto}
a{color:var(--blue-dark)}
a:hover{color:var(--green)}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px}
.skip:focus{left:12px;top:12px;background:#fff;padding:8px 12px;z-index:100}

/* ---------- cabecera ---------- */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:76px}
.brand img{height:42px;width:auto;display:block}
.menu{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.menu>li{position:relative}
.menu a{display:block;padding:10px 14px;text-decoration:none;color:var(--ink);font-weight:600;font-size:15.5px;border-radius:8px}
.menu a:hover,.menu a[aria-current="page"]{color:var(--green);background:var(--green-soft)}
.menu .sub{display:none;position:absolute;top:100%;left:0;min-width:270px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);list-style:none;margin:0;padding:8px}
.menu li:hover>.sub,.menu li:focus-within>.sub{display:block}
.menu .sub a{font-weight:500}
.call{display:inline-flex;align-items:center;gap:8px;background:var(--green);color:#fff !important;text-decoration:none;font-weight:700;padding:10px 16px;border-radius:999px;white-space:nowrap}
.call:hover{background:var(--green-dark)}
.call small{font-weight:500;opacity:.85}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:10px;padding:8px 10px;font-size:15px;font-weight:600;color:var(--ink);cursor:pointer}

/* ---------- héroe ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(120deg,var(--green-deep) 0%,var(--green) 55%,#1f8a52 100%);color:#fff}
.hero .wrap{position:relative;z-index:2;padding-top:72px;padding-bottom:80px}
.hero h1{font-size:clamp(32px,5vw,54px);line-height:1.1;margin:0 0 18px;max-width:760px;letter-spacing:-.5px}
.hero p.lead{font-size:clamp(18px,2vw,21px);max-width:640px;margin:0 0 30px;opacity:.95}
.hero .art{position:absolute;right:-60px;top:0;bottom:0;width:55%;z-index:1;opacity:.9}
.hero.small .wrap{padding-top:48px;padding-bottom:52px}
.hero.small h1{font-size:clamp(28px,4vw,42px)}
.crumbs{font-size:14px;opacity:.85;margin-bottom:10px}
.crumbs a{color:#fff}
.btns{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 22px;border-radius:999px;font-weight:700;text-decoration:none;font-size:17px;border:2px solid transparent}
.btn-white{background:#fff;color:var(--green-deep)}
.btn-white:hover{background:var(--blue-soft);color:var(--green-deep)}
.btn-line{border-color:rgba(255,255,255,.7);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-green{background:var(--green);color:#fff}
.btn-green:hover{background:var(--green-dark);color:#fff}
.btn-outline{border-color:var(--green);color:var(--green)}
.btn-outline:hover{background:var(--green-soft)}
.pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.pill{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);padding:6px 14px;border-radius:999px;font-size:15px}

/* ---------- secciones ---------- */
section.block{padding:72px 0}
section.alt{background:var(--bg-alt)}
.eyebrow{color:var(--blue-dark);font-weight:700;text-transform:uppercase;letter-spacing:1.2px;font-size:13.5px;margin:0 0 8px}
h2{font-size:clamp(26px,3.2vw,36px);line-height:1.2;margin:0 0 14px;color:var(--green-deep);letter-spacing:-.3px}
h3{font-size:20px;margin:0 0 8px;color:var(--green-deep)}
.intro{max-width:720px;color:var(--muted);font-size:18px;margin:0 0 36px}
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 1px 0 rgba(0,0,0,.02)}
.card p{margin:0;color:var(--muted)}
.card .ico{width:48px;height:48px;border-radius:12px;background:var(--green-soft);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.card .ico svg{width:26px;height:26px;stroke:var(--green);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.card.link{text-decoration:none;color:inherit;transition:transform .15s,box-shadow .15s}
.card.link:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.card .more{display:inline-block;margin-top:14px;font-weight:700;color:var(--green)}
.steps{counter-reset:st;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;list-style:none;padding:0;margin:0}
.steps li{counter-increment:st;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;position:relative}
.steps li::before{content:counter(st);display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;margin-bottom:14px}
.steps li p{margin:0;color:var(--muted)}
.tariff{border-top:5px solid var(--green)}
.tariff.b{border-top-color:var(--blue)}
.tariff.c{border-top-color:var(--green-deep)}
.tariff .code{font-size:34px;font-weight:800;color:var(--green-deep);line-height:1}
.tariff ul{margin:12px 0 0;padding-left:18px;color:var(--muted)}
.tag{display:inline-block;font-size:13px;font-weight:700;padding:3px 10px;border-radius:999px;background:var(--blue-soft);color:var(--blue-dark);margin-bottom:12px}
.band{background:linear-gradient(110deg,var(--blue-dark),var(--blue));color:#fff;border-radius:20px;padding:40px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.band h2{color:#fff;margin:0 0 6px}
.band p{margin:0;opacity:.95}
.trust{display:flex;align-items:center;gap:22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 26px}
.trust .seal{flex:0 0 auto;width:64px;height:64px;border-radius:14px;background:#f08c00;color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:12px;text-align:center;line-height:1.1}

/* ---------- contenido de texto ---------- */
.content{max-width:820px}
.content h2{margin-top:44px}
.content h2:first-child{margin-top:0}
.content h3{margin-top:28px}
.content ul,.content ol{padding-left:22px}
.content li{margin-bottom:6px}
.note{font-size:15px;color:var(--muted)}
.box{background:var(--green-soft);border-radius:var(--radius);padding:22px 26px;margin:22px 0}
.box.blue{background:var(--blue-soft)}
.box.warn{background:#fff8e6;border:1px solid #f1dc9b}
.box p:last-child{margin-bottom:0}
table.t{width:100%;border-collapse:collapse;margin:16px 0;font-size:16px}
table.t th,table.t td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
table.t th{background:var(--green-soft);color:var(--green-deep)}
.formula{font-family:Consolas,Menlo,monospace;background:#fff;border:1px dashed var(--green);border-radius:10px;padding:14px 18px;font-size:16px;overflow-x:auto}
.ph{background:var(--warn);border:1px dashed #d7b54a;padding:0 5px;border-radius:4px;color:#5a4600}
.contact-list{list-style:none;padding:0;margin:0}
.contact-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.contact-list li:last-child{border-bottom:0}
.contact-list strong{display:block}
.legal-sign{font-size:14px;color:var(--muted);border-top:1px solid var(--line);margin-top:40px;padding-top:16px}
.layout{display:grid;grid-template-columns:260px 1fr;gap:48px;align-items:start}
.side{position:sticky;top:100px;background:var(--bg-alt);border-radius:var(--radius);padding:18px}
.side h4{margin:4px 8px 10px;font-size:14px;text-transform:uppercase;letter-spacing:1px;color:var(--muted)}
.side a{display:block;padding:8px 10px;border-radius:8px;text-decoration:none;color:var(--ink);font-weight:600;font-size:15.5px}
.side a:hover,.side a[aria-current="page"]{background:#fff;color:var(--green)}
.adhesion{display:grid;grid-template-columns:170px 1fr;gap:28px;align-items:center}
.distintivo{width:150px;display:block;margin:0 auto}
.distintivo-ph{width:150px;height:276px;border:2px dashed #d7b54a;background:var(--warn);display:flex;align-items:center;justify-content:center;text-align:center;font-size:13px;color:#5a4600;border-radius:8px;padding:10px;margin:0 auto}

/* ---------- pie ---------- */
.site-footer{background:var(--green-deep);color:#cfe0d4;margin-top:0;font-size:15px}
.site-footer .wrap{padding-top:56px;padding-bottom:28px}
.fcols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.site-footer h4{color:#fff;font-size:15px;margin:0 0 12px;text-transform:uppercase;letter-spacing:1px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:8px}
.site-footer a{color:#fff;text-decoration:none}
.site-footer a:hover{text-decoration:underline;color:#fff}
.site-footer .logo-w{height:36px;width:auto;margin-bottom:14px}
.fbottom{border-top:1px solid rgba(255,255,255,.15);margin-top:36px;padding-top:18px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:14px}
.fbottom .ph{color:#5a4600}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  .g4,.steps{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:1fr 1fr}
  .fcols{grid-template-columns:1fr 1fr}
  .layout{grid-template-columns:1fr}
  .side{position:static;order:2}
  .hero .art{opacity:.25;width:100%;right:-30%}
}
@media (max-width:860px){
  .burger{display:block}
  .nav{display:none;position:absolute;top:76px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:10px 20px 20px;box-shadow:var(--shadow)}
  .nav.open{display:block}
  .menu{flex-direction:column;align-items:stretch}
  .menu .sub{display:block;position:static;box-shadow:none;border:0;padding:0 0 0 14px;min-width:0}
  .call-top{display:none}
}
@media (max-width:640px){
  body{font-size:16.5px}
  .g2,.g3,.g4,.steps{grid-template-columns:1fr}
  .fcols{grid-template-columns:1fr}
  section.block{padding:52px 0}
  .band{padding:28px}
  .adhesion{grid-template-columns:1fr}
  .trust{flex-direction:column;align-items:flex-start}
  .brand img{height:34px}
  table.t{font-size:14.5px}
}

/* ---------- fotografías ---------- */
.with-photo{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.35fr);gap:22px;align-items:stretch}
.side-pic img,.split-pic img{width:100%;height:100%;object-fit:cover;display:block;border-radius:var(--radius)}
.side-pic{min-height:320px}
.g4-compact{grid-template-columns:repeat(2,1fr)}
.split{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:44px;align-items:center;margin-bottom:40px}
.split-pic img{aspect-ratio:3/2;height:auto}
@media (max-width:1000px){
  .with-photo{grid-template-columns:1fr}
  .side-pic{min-height:0}
  .side-pic img{aspect-ratio:16/9;height:auto;object-position:center 60%}
  .split{grid-template-columns:1fr;gap:24px}
}
@media (max-width:640px){
  .g4-compact{grid-template-columns:1fr}
}