:root{
  --green:#1f8a4c; --green-d:#176b3a; --green-l:#e8f5ee;
  --ink:#16241c; --muted:#5b6b62; --line:#e1e8e3; --bg:#ffffff; --soft:#f6faf7;
  --amber:#f0a500; --radius:14px; --max:1080px;
  --shadow:0 6px 24px rgba(20,40,30,.08);
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--bg);line-height:1.6}
a{color:var(--green-d);text-decoration:none} a:hover{text-decoration:underline}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.2;color:var(--ink)}
h1{font-size:2.5rem;margin:.2em 0} h2{font-size:1.8rem;margin:1.4em 0 .5em}
.btn{display:inline-block;background:var(--green);color:#fff;padding:14px 26px;border-radius:var(--radius);font-weight:700;border:0;cursor:pointer;font-size:1rem;transition:.15s}
.btn:hover{background:var(--green-d);text-decoration:none}
.btn.amber{background:var(--amber);color:#2a1f00} .btn.amber:hover{background:#d99400}
.btn.ghost{background:#fff;color:var(--green-d);border:2px solid var(--green)}
.btn:disabled{opacity:.5;cursor:not-allowed}
/* header */
header.nav{position:sticky;top:0;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:50}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-weight:800;font-size:1.2rem;color:var(--green-d);display:flex;align-items:center;gap:8px}
.logo b{color:var(--ink)}
.nav nav a{margin-left:22px;color:var(--ink);font-weight:600}
.nav nav a.cta{background:var(--green);color:#fff;padding:9px 18px;border-radius:10px}
.nav nav a.cta:hover{text-decoration:none;background:var(--green-d)}
@media(max-width:720px){.nav nav a:not(.cta){display:none}}
/* hero */
.hero{background:linear-gradient(180deg,var(--green-l),#fff);padding:64px 0 48px}
.hero .grid{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
@media(max-width:820px){.hero .grid{grid-template-columns:1fr}}
.badge{display:inline-block;background:#fff;border:1px solid var(--line);color:var(--green-d);font-weight:700;padding:6px 14px;border-radius:999px;font-size:.85rem;box-shadow:var(--shadow)}
.hero p.lead{font-size:1.2rem;color:var(--muted);max-width:540px}
.price-card{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:26px;text-align:center}
.price-card .old{color:var(--muted);text-decoration:line-through}
.price-card .now{font-size:3rem;font-weight:800;color:var(--green-d)}
.price-card ul{list-style:none;padding:0;margin:14px 0;text-align:left}
.price-card li{padding:6px 0 6px 28px;position:relative}
.price-card li:before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:800}
.trust{display:flex;gap:24px;flex-wrap:wrap;margin-top:22px;color:var(--muted);font-size:.95rem}
.trust b{color:var(--ink)}
/* sections */
section{padding:46px 0}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:820px){.cards{grid-template-columns:1fr}}
.card{background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.card h3{margin:.2em 0 .4em;font-size:1.15rem}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:820px){.steps{grid-template-columns:1fr 1fr}}
.step{position:relative;padding:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.step:before{counter-increment:s;content:counter(s);display:flex;align-items:center;justify-content:center;width:34px;height:34px;background:var(--green);color:#fff;border-radius:50%;font-weight:800;margin-bottom:10px}
.cities{display:flex;flex-wrap:wrap;gap:10px}
.cities a{background:var(--green-l);padding:8px 14px;border-radius:999px;font-weight:600}
.faq details{border-bottom:1px solid var(--line);padding:14px 0}
.faq summary{font-weight:700;cursor:pointer;font-size:1.05rem}
.faq p{color:var(--muted);margin:.6em 0 0}
.cta-band{background:var(--green);color:#fff;text-align:center;border-radius:18px;padding:40px 20px;margin:20px auto}
.cta-band h2{color:#fff;margin-top:0}
footer{background:var(--soft);border-top:1px solid var(--line);padding:30px 0;color:var(--muted);font-size:.9rem}
footer a{color:var(--muted)} footer .cols{display:flex;justify-content:space-between;flex-wrap:wrap;gap:20px}
/* forms / exam */
.panel{max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px}
.field{margin:14px 0} .field label{display:block;font-weight:600;margin-bottom:6px}
.field input{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:1rem}
.q{border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin:16px 0;background:var(--soft)}
.q .modtag{font-size:.78rem;color:var(--green-d);font-weight:700;text-transform:uppercase;letter-spacing:.04em}
.opt{display:block;background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin:8px 0;cursor:pointer}
.opt:hover{border-color:var(--green)}
.opt input{margin-right:10px}
.opt.sel{border-color:var(--green);background:var(--green-l)}
.progress{height:8px;background:var(--line);border-radius:99px;overflow:hidden;margin:10px 0 0}
.progress i{display:block;height:100%;background:var(--green);width:0;transition:.3s}
.result{text-align:center;padding:20px}
.result .big{font-size:3rem;font-weight:800}
.pass{color:var(--green-d)} .fail{color:#c0392b}
.note{background:#fff7e6;border:1px solid #f3d28a;border-radius:10px;padding:12px 14px;font-size:.92rem;color:#6b5413}
.cert-box{border:2px dashed var(--green);border-radius:var(--radius);padding:20px;text-align:center;background:var(--green-l)}
/* iconos SVG */
.ico{width:24px;height:24px;stroke:var(--green);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;vertical-align:middle}
.iconcircle{display:inline-flex;align-items:center;justify-content:center;width:54px;height:54px;border-radius:14px;background:var(--green-l);margin-bottom:10px}
.iconcircle .ico{width:28px;height:28px}
.trust .ico{width:20px;height:20px;margin-right:6px}
.badge .ico{width:15px;height:15px;margin-right:4px;stroke:var(--green-d)}
.feat{display:flex;gap:14px;align-items:flex-start}
.feat .ico{flex:none;width:26px;height:26px;margin-top:3px}
.feat h3{margin:.1em 0 .3em;font-size:1.12rem}
.feat p{margin:0;color:var(--muted)}
.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
@media(max-width:820px){.feats{grid-template-columns:1fr}}
.muted{color:var(--muted)} .center{text-align:center} .hidden{display:none}
.spinner{display:inline-block;width:18px;height:18px;border:3px solid #fff;border-top-color:transparent;border-radius:50%;animation:sp .7s linear infinite;vertical-align:middle}
@keyframes sp{to{transform:rotate(360deg)}}
/* bloque a dos columnas responsive (texto + tarjeta) */
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
@media(max-width:820px){.split{grid-template-columns:1fr}}
.badge{max-width:100%}
/* ===== Ajustes móvil ===== */
@media(max-width:560px){
  h1{font-size:1.95rem}
  h2{font-size:1.5rem}
  .wrap{padding:0 16px}
  .hero{padding:38px 0 30px}
  .hero .grid{gap:28px}
  .hero p.lead{font-size:1.05rem}
  .price-card{padding:22px}
  .price-card .now{font-size:2.4rem}
  section{padding:34px 0}
  .trust{gap:12px 18px;font-size:.9rem}
  .feats{gap:20px}
  .cta-band{padding:30px 16px}
  .lp-hero h1{font-size:1.95rem}
  footer .cols{flex-direction:column;gap:14px}
}