/* ConectaPro IA - styles.css (CSS puro, mobile-first, sin dependencias) */
:root{
  --bg:#0b1220; --surface:rgba(255,255,255,.06); --text:rgba(255,255,255,.92);
  --muted:rgba(255,255,255,.70); --border:rgba(255,255,255,.14);
  --brand:#0b3b6e; --brand2:#12559b; --shadow:0 12px 36px rgba(0,0,0,.35);
  --radius:18px; --max:1100px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; line-height:1.5;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Arial,"Apple Color Emoji","Segoe UI Emoji";
  background:radial-gradient(1200px 600px at 15% 10%, rgba(18,85,155,.25), transparent 55%),
             radial-gradient(1000px 600px at 90% 20%, rgba(11,59,110,.35), transparent 55%),
             var(--bg);
  color:var(--text);
}
a{color:inherit;text-decoration:none}
a:hover{text-decoration:underline}
.container{width:min(var(--max), calc(100% - 2rem)); margin:0 auto}

.skip-link{position:absolute;left:-999px;top:.75rem;background:#fff;color:#000;padding:.5rem .75rem;border-radius:10px;z-index:999}
.skip-link:focus{left:1rem}

.site-header{
  position:sticky; top:0; z-index:30;
  backdrop-filter:blur(10px);
  background:rgba(11,18,32,.65);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:.85rem 0;gap:1rem}

.brand{display:inline-flex;align-items:center;gap:.6rem;font-weight:650;letter-spacing:.2px}
.brand-mark{width:28px;height:28px}
.brand-name{font-size:1rem}

.site-nav{display:none;gap:1rem;align-items:center}
.site-nav a{color:var(--muted);font-size:.95rem}
.site-nav a:hover{color:var(--text);text-decoration:none}

.nav-toggle{
  display:inline-flex;flex-direction:column;gap:5px;cursor:pointer;
  background:transparent;border:1px solid var(--border);border-radius:12px;padding:.55rem .6rem
}
.nav-toggle__bar{width:22px;height:2px;background:var(--text);opacity:.9}

.mobile-nav{border-bottom:1px solid var(--border);background:rgba(11,18,32,.80)}
.mobile-nav__inner{display:grid;gap:.75rem;padding:1rem 0 1.25rem}
.mobile-nav a{color:var(--muted);padding:.6rem .75rem;border:1px solid var(--border);border-radius:14px}
.mobile-nav a:hover{color:var(--text);text-decoration:none;background:rgba(255,255,255,.04)}

.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1rem;border-radius:14px;border:1px solid var(--border);font-weight:600;letter-spacing:.2px}
.btn--primary{background:linear-gradient(180deg,var(--brand2),var(--brand));border-color:rgba(255,255,255,.18);box-shadow:0 10px 24px rgba(18,85,155,.25)}
.btn--primary:hover{text-decoration:none;filter:brightness(1.05)}
.btn--ghost{background:rgba(255,255,255,.04)}
.btn--ghost:hover{text-decoration:none;background:rgba(255,255,255,.07)}

.hero{position:relative;padding:3.25rem 0 2rem;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:radial-gradient(900px 480px at 30% 20%, rgba(24,169,87,.10), transparent 55%),
                         radial-gradient(1000px 550px at 80% 10%, rgba(18,85,155,.18), transparent 60%);pointer-events:none}
.hero-inner{position:relative;display:grid;gap:1.5rem}
.eyebrow{color:var(--muted);letter-spacing:.12em;text-transform:uppercase;font-size:.78rem}
h1{margin:.35rem 0 .6rem;font-size:clamp(2rem,6vw,3.1rem);line-height:1.08}
.lead{color:var(--muted);font-size:1.08rem;max-width:56ch}
.hero-cta{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.25rem}
.hero-badges{display:flex;flex-wrap:wrap;gap:.6rem;margin:1.25rem 0 0;padding:0;list-style:none}
.hero-badges li{padding:.55rem .75rem;border-radius:999px;border:1px solid var(--border);background:rgba(255,255,255,.04);color:var(--muted);font-size:.92rem}

.card{border:1px solid var(--border);background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.04));
      border-radius:var(--radius);padding:1.15rem 1.1rem;box-shadow:var(--shadow)}
.card-title{margin:0 0 .35rem;font-size:1.05rem}
.card-text{margin:0;color:var(--muted)}
.card-divider{height:1px;background:var(--border);margin:.95rem 0}
.card-meta{display:grid;gap:.7rem;margin:0}
.card-meta dt{color:var(--muted);font-size:.86rem}
.card-meta dd{margin:0;font-weight:650}

.section{padding:2.6rem 0}
.section--alt{background:rgba(255,255,255,.03);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{max-width:75ch;margin-bottom:1.4rem}
.section-head h2{margin:0 0 .55rem;font-size:1.65rem}
.section-head p{margin:0;color:var(--muted)}

.grid{display:grid;gap:1rem}
.grid--3{grid-template-columns:1fr}
.feature{border:1px solid var(--border);background:rgba(255,255,255,.04);border-radius:var(--radius);padding:1.1rem}
.feature h3{margin:0 0 .35rem}
.feature p{margin:0;color:var(--muted)}

.steps{display:grid;gap:.9rem}
.step{display:grid;grid-template-columns:44px 1fr;gap:.9rem;align-items:start;border:1px solid var(--border);background:rgba(255,255,255,.04);
      border-radius:var(--radius);padding:1rem}
.step-num{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:rgba(18,85,155,.20);border:1px solid rgba(18,85,155,.35);font-weight:800}
.step-body h3{margin:.15rem 0 .25rem}
.step-body p{margin:0;color:var(--muted)}

.callout{display:grid;grid-template-columns:44px 1fr;gap:1rem;border:1px solid rgba(24,169,87,.35);background:rgba(24,169,87,.10);
         border-radius:var(--radius);padding:1.1rem}
.callout-icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:rgba(24,169,87,.18);border:1px solid rgba(24,169,87,.35);font-weight:900}
.callout h2{margin:0 0 .4rem;font-size:1.3rem}
.callout p{margin:0;color:rgba(255,255,255,.86)}

.tags{display:flex;flex-wrap:wrap;gap:.6rem}
.tag{border:1px solid var(--border);background:rgba(255,255,255,.04);color:var(--muted);padding:.55rem .75rem;border-radius:999px;font-size:.95rem}

.contact{display:grid;gap:1rem}
.contact-email a{font-size:1.1rem;font-weight:750;text-decoration:underline}
.list{margin:0;padding-left:1.15rem;color:var(--muted)}
.muted{color:var(--muted)}
.small{font-size:.92rem}

.site-footer{border-top:1px solid var(--border);background:rgba(0,0,0,.15);padding:1.2rem 0}
.footer-inner{display:grid;gap:.35rem}

@media (min-width:880px){
  .site-nav{display:inline-flex}
  .nav-toggle{display:none}
  .hero-inner{grid-template-columns:1.3fr .9fr;align-items:start}
  .grid--3{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .contact{grid-template-columns:1.3fr .9fr;align-items:start}
}