/* ===== Mexicana Energy Services — Estilos corporativos ===== */
:root{
  --navy:#1e293b;
  --navy-2:#172132;
  --navy-3:#26344a;
  --green:#22b858;
  --green-2:#31b660;
  --green-d:#1a9c49;
  --text:#e7ecf3;
  --muted:#9aa7ba;
  --white:#ffffff;
  --line:rgba(255,255,255,.09);
  --radius:14px;
  --maxw:1140px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',Arial,Helvetica,sans-serif;
  background:var(--navy);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
a{color:inherit;text-decoration:none}
img,svg{display:block}

/* ===== Botones ===== */
.btn{
  display:inline-block;font-weight:700;font-size:.95rem;
  padding:13px 26px;border-radius:999px;cursor:pointer;border:0;
  transition:transform .15s ease,background .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--green);color:#06210f;box-shadow:0 8px 24px rgba(34,184,88,.28)}
.btn-primary:hover{background:var(--green-2);transform:translateY(-2px)}
.btn-ghost{border:1.5px solid var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--green);color:var(--green-2)}
.btn-nav{background:var(--green);color:#06210f;padding:10px 20px}
.btn-nav:hover{background:var(--green-2)}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(23,33,50,.82);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{width:48px;height:38px}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-text strong{font-size:1.15rem;font-weight:800;color:var(--white)}
.brand-text small{font-size:.78rem;font-weight:700;color:var(--white);letter-spacing:.3px}
.main-nav{display:flex;align-items:center;gap:26px}
.main-nav a{font-size:.93rem;font-weight:600;color:var(--muted);transition:color .2s}
.main-nav a:hover{color:var(--green-2)}
.main-nav a.btn-nav{color:#06210f}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;cursor:pointer;padding:6px}
.nav-toggle span{width:26px;height:3px;background:var(--white);border-radius:2px;transition:.3s}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;background:var(--navy);padding:120px 0 110px}
.hero-bg{position:absolute;inset:0;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(34,184,88,.14), transparent 60%),
    linear-gradient(120deg, var(--navy-2), var(--navy) 55%);
}
.hero-bg::after{
  content:"";position:absolute;right:-120px;top:-60px;width:520px;height:520px;
  background:
    repeating-linear-gradient(135deg, rgba(34,184,88,.10) 0 2px, transparent 2px 26px);
  transform:rotate(8deg);opacity:.5;
}
.hero-inner{position:relative}
.eyebrow{color:var(--green-2);font-weight:700;letter-spacing:2px;text-transform:uppercase;font-size:.8rem;margin-bottom:18px}
.hero h1{font-size:clamp(2.6rem,7vw,5rem);font-weight:900;line-height:1.02;letter-spacing:-1px;color:var(--white)}
.hero h1 .accent{color:var(--green)}
.hero-sub{margin-top:22px;font-size:1.15rem;color:var(--muted);max-width:560px}
.hero-cta{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.hero-rule{display:block;width:88px;height:4px;background:var(--green);border-radius:2px;margin-top:46px}

/* ===== Section base ===== */
.section{padding:84px 0}
.section.alt{background:var(--navy-2)}
.section-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.section-head.center{justify-content:center;text-align:center}
.section-head .bar{width:6px;height:34px;background:var(--green);border-radius:3px}
.section-head h2{font-size:clamp(1.5rem,3.4vw,2.1rem);font-weight:800;color:var(--white);text-transform:uppercase;letter-spacing:.5px}
.lead{color:var(--muted);font-size:1.08rem;max-width:680px;margin-bottom:30px}
.lead.center{margin:0 auto 36px;text-align:center}

/* ===== Stats ===== */
.stats{background:var(--navy-2);padding:84px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:20px 0 26px}
.stat{text-align:center;padding:30px 18px;background:var(--navy-3);border:1px solid var(--line);border-radius:var(--radius)}
.stat .num{display:block;font-size:3rem;font-weight:900;color:var(--green);line-height:1}
.stat .lbl{display:block;margin-top:10px;color:var(--muted);text-transform:uppercase;letter-spacing:1px;font-size:.82rem;font-weight:600}
.stats-foot{text-align:center;color:var(--text);font-size:1.05rem;font-weight:500}

/* ===== Cards 3 ===== */
.cards-3{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:36px}
.card{
  background:var(--navy-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:34px 28px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.section.alt .card{background:var(--navy)}
.card:hover{transform:translateY(-6px);border-color:var(--green);box-shadow:0 16px 40px rgba(0,0,0,.3)}
.card-ico{width:58px;height:58px;border-radius:12px;background:rgba(34,184,88,.12);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.card-ico svg{width:30px;height:30px;fill:none;stroke:var(--green);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:1.2rem;font-weight:700;color:var(--white);margin-bottom:10px}
.card p{color:var(--muted);font-size:.98rem}

/* ===== List grid ===== */
.list-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:30px}
.list-item{background:var(--navy);border:1px solid var(--line);border-left:4px solid var(--green);
  border-radius:10px;padding:24px 26px}
.list-item h3{color:var(--white);font-size:1.08rem;margin-bottom:6px}
.list-item p{color:var(--muted);font-size:.97rem}

/* ===== Chips ===== */
.chips{display:flex;flex-wrap:wrap;gap:14px;margin-top:10px}
.chip{background:var(--navy-2);border:1px solid var(--line);border-radius:999px;
  padding:12px 22px;font-weight:600;color:var(--text);transition:.2s}
.section .chip{background:var(--navy-3)}
.chip:hover{border-color:var(--green);color:var(--green-2)}

/* ===== Split ===== */
.split-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.checklist{list-style:none;display:flex;flex-direction:column;gap:12px}
.checklist li{position:relative;padding-left:32px;color:var(--text);font-size:1rem}
.checklist li::before{content:"";position:absolute;left:0;top:7px;width:16px;height:9px;
  border-left:3px solid var(--green);border-bottom:3px solid var(--green);transform:rotate(-45deg)}

/* ===== Tabla marcas ===== */
.table-wrap{overflow-x:auto;margin-top:30px;border:1px solid var(--line);border-radius:var(--radius)}
.brands{width:100%;border-collapse:collapse;min-width:620px}
.brands th{background:var(--navy-3);color:var(--green-2);text-align:left;font-size:.82rem;
  text-transform:uppercase;letter-spacing:1px;padding:16px 20px}
.brands td{padding:16px 20px;border-top:1px solid var(--line);color:var(--text);font-size:.97rem}
.brands tbody tr:hover{background:rgba(34,184,88,.06)}
.brands td:first-child{font-weight:700;color:var(--white)}

/* ===== Contacto ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:40px;margin-top:14px}
.contact-info{display:flex;flex-direction:column;gap:24px}
.ci{display:flex;gap:16px;align-items:flex-start;background:var(--navy);border:1px solid var(--line);
  border-radius:12px;padding:22px 24px}
.ci-ico{font-size:1.4rem;line-height:1}
.ci a{color:var(--green-2)}
.ci a:hover{text-decoration:underline}
.contact-form{background:var(--navy);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.contact-form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-form label{display:block;font-size:.86rem;font-weight:600;color:var(--muted);margin-bottom:16px}
.contact-form input,.contact-form textarea{
  width:100%;margin-top:7px;background:var(--navy-3);border:1px solid var(--line);
  border-radius:9px;padding:12px 14px;color:var(--text);font-family:inherit;font-size:.97rem;transition:border-color .2s}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--green)}
.contact-form textarea{resize:vertical}
.contact-form button{width:100%;margin-top:6px}
.form-status{margin-top:14px;font-size:.92rem;text-align:center;min-height:1.2em}
.form-status.ok{color:var(--green-2)}
.form-status.err{color:#ff7a7a}

/* ===== Footer ===== */
.site-footer{background:var(--navy-2);border-top:1px solid var(--line);padding:54px 0 34px}
.footer-inner{text-align:center;max-width:760px;margin:0 auto}
.footer-inner .brand-mark{width:64px;height:50px;margin:0 auto 18px}
.footer-claim{color:var(--muted);font-size:1rem}
.footer-claim strong{color:var(--green-2)}
.footer-copy{margin-top:24px;color:#6b7891;font-size:.86rem}

/* ===== Reveal anim ===== */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
.reveal.show{opacity:1;transform:none}

/* ===== Responsive ===== */
@media(max-width:900px){
  .main-nav{
    position:fixed;inset:74px 0 auto 0;flex-direction:column;gap:0;
    background:var(--navy-2);border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;transition:max-height .35s ease}
  .main-nav.open{max-height:420px}
  .main-nav a{width:100%;padding:16px 24px;border-top:1px solid var(--line)}
  .main-nav a.btn-nav{margin:14px 24px;text-align:center;border:0}
  .nav-toggle{display:flex}
  .nav-toggle.active span:nth-child(1){transform:translateY(8px) rotate(45deg)}
  .nav-toggle.active span:nth-child(2){opacity:0}
  .nav-toggle.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
}
@media(max-width:1024px){
  .cards-3{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:760px){
  .stats-grid{grid-template-columns:1fr;gap:16px}
  .cards-3{grid-template-columns:1fr}
  .list-grid{grid-template-columns:1fr}
  .split-grid{grid-template-columns:1fr;gap:36px}
  .contact-grid{grid-template-columns:1fr}
  .contact-form .row{grid-template-columns:1fr}
  .hero{padding:86px 0 76px}
}