:root{
  --primary:#00A39B;--primary-d:#018c85;--secondary:#003B71;--ink:#0f2133;
  --mute:#5b6b7a;--bg:#f4f7f9;--card:#fff;--line:#e3e9ee;--primary-bg:#e6f6f5;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55}
a{color:inherit;text-decoration:none}
.wrap{max-width:1040px;margin:0 auto;padding-left:20px;padding-right:20px}
h1,h2,h3{color:var(--secondary);line-height:1.2;margin:0 0 .4em}
h1{font-size:clamp(1.6rem,4.5vw,2.5rem);font-weight:800}
h2{font-size:clamp(1.3rem,3vw,1.8rem);font-weight:800}
h3{font-size:1.05rem;font-weight:700}
p{margin:0 0 .8em}
.pill{display:inline-block;background:var(--primary-bg);color:var(--primary-d);font-weight:700;font-size:.78rem;padding:.3em .8em;border-radius:999px;margin-bottom:.9rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;background:var(--primary);color:#fff;font-weight:700;border-radius:12px;padding:.7em 1.2em;border:2px solid var(--primary);transition:background .15s,transform .05s}
.btn:hover{background:var(--primary-d);border-color:var(--primary-d)}
.btn:active{transform:translateY(1px)}
.btn-lg{padding:.85em 1.6em;font-size:1.05rem}
.btn-sm{padding:.5em 1em;font-size:.9rem}
.btn-ghost{background:transparent;color:var(--secondary);border-color:var(--line)}
.btn-ghost:hover{background:#fff;border-color:var(--primary)}
.btn-white{background:#fff;color:var(--primary-d);border-color:#fff}
.btn-white:hover{background:#f0fbfa;border-color:#f0fbfa}
.nav{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{font-weight:800;color:var(--secondary);font-size:1.15rem}
.nav-links{display:flex;align-items:center;gap:1.1rem;font-weight:600}
.nav-links a{color:var(--secondary)}
.crumbs{font-size:.85rem;color:var(--mute);padding-top:16px}
.crumbs a:hover{color:var(--primary-d)}
.crumbs span{color:var(--ink);font-weight:600}
.hero{padding:26px 0 8px}
.hero .lead{max-width:760px;color:var(--mute);font-size:1.05rem}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}
.trust{margin-top:12px;color:var(--mute);font-size:.88rem}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:28px auto}
.stat{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px;text-align:center}
.stat-n{font-size:1.7rem;font-weight:800;color:var(--primary-d)}
.stat-l{color:var(--mute);font-size:.85rem;margin-top:4px}
.sec{padding:26px 0}
.sec-lead{color:var(--mute);max-width:720px}
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:16px}
.feat{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px}
.feat h3{margin-bottom:.3em}
.feat p{color:var(--mute);margin:0;font-size:.95rem}
.exam{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:8px 20px;margin-top:14px}
.exam-row{padding:12px 0;border-bottom:1px solid var(--line)}
.exam-row:last-child{border-bottom:0}
.exam-row b{color:var(--secondary)}
.temario{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:16px}
.tem-list{list-style:none;margin:0;padding:0}
.tem-list li{display:flex;gap:10px;align-items:flex-start;padding:9px 0;border-bottom:1px solid var(--line);font-size:.93rem}
.tem-list li:last-child{border-bottom:0}
.tn{flex:none;width:24px;height:24px;border-radius:7px;background:var(--primary-bg);color:var(--primary-d);font-weight:700;font-size:.78rem;display:grid;place-items:center;margin-top:1px}
.faq{margin-top:10px;background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{cursor:pointer;padding:16px 20px;font-weight:700;color:var(--secondary);list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";float:right;color:var(--primary-d);font-weight:800}
.faq-item[open] summary::after{content:"–"}
.faq-a{padding:0 20px 16px;color:var(--mute)}
.ctaband{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;margin-top:30px;padding:44px 0;text-align:center}
.ctaband h2{color:#fff}
.ctaband p{color:rgba(255,255,255,.9);margin-bottom:18px}
.opo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:16px}
.opo-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;transition:border-color .15s,box-shadow .15s}
.opo-card:hover{border-color:var(--primary);box-shadow:0 6px 20px rgba(0,59,113,.07)}
.opo-card h2{font-size:1.15rem;margin:.2em 0}
.opo-card p{color:var(--mute);font-size:.9rem;flex:1}
.opo-go{color:var(--primary-d);font-weight:700;font-size:.92rem}
.foot{background:var(--secondary);color:#cfe0ef;margin-top:40px;padding:36px 0 24px}
.foot-cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
.foot-brand{font-weight:800;color:#fff;font-size:1.1rem;margin-bottom:.5em}
.foot-note{color:#aecbe6;font-size:.9rem;max-width:34ch}
.foot h3{color:#fff;font-size:.95rem;margin-bottom:.6em}
.foot-links{display:flex;flex-direction:column;gap:.5em}
.foot-links a:hover{color:#fff}
.foot-legal{border-top:1px solid rgba(255,255,255,.15);margin-top:24px;padding-top:16px;color:#9fbdd8;font-size:.82rem}
@media(max-width:860px){
  .stats{grid-template-columns:repeat(2,1fr)}
  .features,.opo-grid{grid-template-columns:1fr 1fr}
  .temario{grid-template-columns:1fr}
  .foot-cols{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .features,.opo-grid,.stats{grid-template-columns:1fr}
  .nav-links{gap:.7rem;font-size:.9rem}
  .nav-links a[href="/login"]{display:none}
  .foot-cols{grid-template-columns:1fr}
}