/* ============================================================
   Su Empresa en USA — Landing page
   Colores de marca: índigo #4d61d6 / marino #242a56 / rojo #dd3333
   ============================================================ */

:root{
  --indigo:#4d61d6;
  --indigo-2:#576ad6;
  --indigo-3:#6878d6;
  --navy:#242a56;
  --navy-2:#393a56;
  --red:#dd3333;
  --ink:#26283a;
  --muted:#5b6172;
  --line:#e7e9f2;
  --bg:#ffffff;
  --bg-soft:#f5f6fb;
  --white:#ffffff;
  --radius:16px;
  --shadow:0 10px 30px rgba(36,42,86,.08);
  --shadow-lg:0 20px 50px rgba(36,42,86,.16);
  --maxw:1140px;
  --font:'Segoe UI',system-ui,-apple-system,Roboto,'Helvetica Neue',Arial,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  font-size:17px;
  overflow-x:hidden;
}
img,svg,iframe{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}
.narrow{max-width:820px}
.center{text-align:center;margin-top:34px}

h1,h2,h3{line-height:1.2;color:var(--navy);font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(2rem,5vw,3.3rem)}
h2{font-size:clamp(1.6rem,3.4vw,2.4rem)}
h3{font-size:1.2rem}
.grad{background:linear-gradient(90deg,var(--indigo),var(--red));-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- Botones ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:50px;font-weight:700;font-size:.98rem;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
  border:2px solid transparent;white-space:nowrap;
}
.btn-primary{background:linear-gradient(120deg,var(--indigo),var(--indigo-3));color:#fff;box-shadow:0 8px 22px rgba(77,97,214,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(77,97,214,.45)}
.btn-ghost{border-color:var(--indigo);color:var(--indigo);background:transparent}
.btn-ghost:hover{background:var(--indigo);color:#fff}
.btn-nav{padding:10px 20px;background:var(--red);color:#fff;box-shadow:0 6px 16px rgba(221,51,51,.3)}
.btn-nav:hover{transform:translateY(-2px)}

.eyebrow{
  display:inline-block;font-size:.8rem;font-weight:800;letter-spacing:.12em;
  text-transform:uppercase;color:var(--red);margin-bottom:12px;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 6px 20px rgba(36,42,86,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:11px}
.brand-logo{height:46px;width:auto;display:block}

.main-nav{display:flex;align-items:center;gap:28px}
.main-nav a{font-weight:600;color:var(--navy);position:relative;transition:color .2s}
.main-nav a:not(.btn)::after{
  content:"";position:absolute;left:0;bottom:-6px;height:2px;width:0;background:var(--red);transition:width .25s;
}
.main-nav a:not(.btn):hover{color:var(--red)}
.main-nav a:not(.btn):hover::after{width:100%}

.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:26px;height:3px;background:var(--navy);border-radius:3px;transition:.3s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:70px 0 80px;
  background:
    radial-gradient(900px 500px at 85% -10%,rgba(77,97,214,.18),transparent 60%),
    radial-gradient(700px 500px at 0% 110%,rgba(221,51,51,.10),transparent 55%),
    var(--bg-soft);
}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero-copy .lead{color:var(--muted);font-size:1.15rem;margin:18px 0 28px;max-width:560px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-trust{list-style:none;display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;font-weight:600;color:var(--navy);font-size:.95rem}

.hero-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-lg)}
.hero-card h2{font-size:1.3rem;margin-bottom:18px}
.benefits{list-style:none;display:grid;gap:16px}
.benefits li{display:flex;gap:14px;align-items:flex-start}
.benefits .ico{flex-shrink:0;width:48px;height:48px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(77,97,214,.16),rgba(221,51,51,.10));border-radius:14px;color:var(--indigo);box-shadow:inset 0 0 0 1px rgba(77,97,214,.08)}
.benefits .ico svg,.card-ico svg,.c-ico svg{width:26px;height:26px;display:block;color:currentColor}
.benefits strong{color:var(--navy);display:block}
.benefits p{color:var(--muted);font-size:.92rem;margin-top:2px}

/* ---------- Secciones ---------- */
.section{padding:84px 0}
.section-alt{background:var(--bg-soft)}
.section-head{text-align:center;max-width:660px;margin:0 auto 52px}
.section-head p{color:var(--muted);margin-top:12px;font-size:1.08rem}
.section-head.light h2,.section-head.light .eyebrow{color:#fff}
.section-head.light .eyebrow{color:#ffb4b4}
.section-head.light p{color:rgba(255,255,255,.82)}

.grid{display:grid;gap:26px}
.services{grid-template-columns:repeat(3,1fr)}
.posts{grid-template-columns:repeat(3,1fr)}

/* ---------- Cards servicios ---------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.card-ico{width:62px;height:62px;display:grid;place-items:center;border-radius:16px;color:var(--indigo);
  background:linear-gradient(135deg,rgba(77,97,214,.16),rgba(221,51,51,.12));margin-bottom:16px;box-shadow:inset 0 0 0 1px rgba(77,97,214,.08)}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);font-size:.97rem}

/* ---------- Banda CTA ---------- */
.cta-band{
  margin-top:52px;background:linear-gradient(120deg,var(--navy),var(--indigo));
  border-radius:22px;padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:24px;
  color:#fff;box-shadow:var(--shadow-lg);flex-wrap:wrap;
}
.cta-band h3{color:#fff;font-size:1.5rem}
.cta-band p{color:rgba(255,255,255,.85)}
.cta-band .btn-primary{background:#fff;color:var(--indigo)}
.cta-band .btn-primary:hover{background:#fff}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:4px 22px;box-shadow:var(--shadow);transition:box-shadow .2s}
.faq details[open]{box-shadow:var(--shadow-lg)}
.faq summary{cursor:pointer;list-style:none;font-weight:700;color:var(--navy);padding:16px 0;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.5rem;color:var(--red);transition:transform .25s;line-height:1}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:var(--muted);padding:0 0 18px}

/* ---------- Blog ---------- */
.post{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .25s,box-shadow .25s}
.post:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.post a{display:block;height:100%}
.post-thumb{
  height:150px;display:grid;place-items:center;text-align:center;padding:14px;color:#fff;font-weight:800;font-size:1.15rem;
  background-color:var(--c,#4d61d6);
  background-image:linear-gradient(135deg,rgba(36,42,86,.72),rgba(77,97,214,.35)),var(--preview-image,none);
  background-size:cover;background-position:center;
  text-shadow:0 2px 10px rgba(0,0,0,.35);
}
.post-tag{display:inline-block;margin:18px 20px 0;padding:6px 12px;border-radius:999px;background:rgba(77,97,214,.10);color:var(--indigo);font-size:.72rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.post h3{padding:12px 20px 6px;font-size:1.06rem;line-height:1.35}
.post-link{display:inline-block;padding:0 20px 20px;color:var(--indigo);font-weight:700;font-size:.9rem}

/* ---------- Contacto (dark) ---------- */
.section-dark{background:linear-gradient(160deg,var(--navy),var(--navy-2));color:#fff}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:stretch}
.contact-list{list-style:none;display:grid;gap:20px;align-content:start}
.contact-list li{display:flex;gap:16px;align-items:flex-start}
.contact-list .c-ico{width:50px;height:50px;flex-shrink:0;display:grid;place-items:center;background:rgba(255,255,255,.16);border-radius:14px;color:#fff;box-shadow:inset 0 0 0 1px rgba(255,255,255,.12)}
.contact-list strong{display:block;color:#fff;font-size:.82rem;text-transform:uppercase;letter-spacing:.08em;opacity:.75;margin-bottom:3px}
.contact-list a,.contact-list address,.contact-list span{color:#fff;font-style:normal;font-size:1.08rem;font-weight:600}
.contact-list a:hover{color:#ffb4b4}
.contact-list .socials{display:flex;gap:14px;flex-wrap:wrap;padding-top:6px}
.contact-list .socials a{font-size:.95rem;padding:8px 16px;border:1px solid rgba(255,255,255,.25);border-radius:50px;transition:.2s}
.contact-list .socials a:hover{background:#fff;color:var(--navy)}
.contact-map{min-height:360px;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.contact-map iframe{height:100%;min-height:360px}

/* ---------- Footer ---------- */
.site-footer{background:#171a2e;color:#c9cce0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr;gap:34px;padding:52px 22px 34px}
.footer-brand{display:inline-block;background:#fff;padding:12px 16px;border-radius:12px;margin-bottom:16px}
.footer-brand img{height:46px;width:auto;display:block}
.footer-tag{color:#9aa0c0;max-width:320px;font-size:.95rem}
.footer-nav{display:flex;flex-direction:column;gap:10px}
.footer-nav a:hover{color:#fff}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:.95rem}
.footer-contact a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;font-size:.86rem;color:#8288ab;text-align:center}

/* ---------- Widget WhatsApp ---------- */
.wa-float{
  position:fixed;right:22px;bottom:22px;z-index:200;
  width:60px;height:60px;border-radius:50%;background:#25d366;
  display:grid;place-items:center;box-shadow:0 8px 24px rgba(37,211,102,.5);
  transition:transform .2s;animation:wa-pulse 2.4s infinite;
}
.wa-float:hover{transform:scale(1.08)}
.wa-tip{
  position:absolute;right:72px;background:#fff;color:var(--navy);font-weight:700;font-size:.9rem;
  padding:8px 14px;border-radius:10px;white-space:nowrap;box-shadow:var(--shadow);
  opacity:0;pointer-events:none;transform:translateX(8px);transition:.25s;
}
.wa-tip::after{content:"";position:absolute;right:-6px;top:50%;transform:translateY(-50%);border:6px solid transparent;border-left-color:#fff}
.wa-float:hover .wa-tip{opacity:1;transform:translateX(0)}
@keyframes wa-pulse{0%{box-shadow:0 0 0 0 rgba(37,211,102,.5)}70%{box-shadow:0 0 0 16px rgba(37,211,102,0)}100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}}

/* ---------- Animaciones de aparición ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:960px){
  .services,.posts{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}

@media (max-width:760px){
  body{font-size:16px}
  .section{padding:60px 0}
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;inset:74px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;padding:10px 22px 24px;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-lg);
    transform:translateY(-140%);transition:transform .35s ease;
  }
  .main-nav.open{transform:translateY(0)}
  .main-nav a{padding:15px 4px;border-bottom:1px solid var(--line)}
  .main-nav a:not(.btn)::after{display:none}
  .btn-nav{margin-top:14px;text-align:center}
  .cta-band{padding:28px 24px;text-align:center;justify-content:center}
}

@media (max-width:520px){
  .services,.posts,.footer-grid{grid-template-columns:1fr}
  .hero{padding:48px 0 56px}
  .hero-cta .btn{flex:1 1 auto}
  .brand-logo{height:38px}
}

/* Accesibilidad: respeta reduce motion */
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}