:root{
  --bg-dark:#1e3650;
  --bg-darker:#08121c;
  --brand:#ffb703;
  --brand-ink:#111;
  --text:#0e0e0e;
  --muted:#6b7280;
  --card:#ffffff;
  --line:#eef0f3;
}

*{box-sizing:border-box}
html,body{margin:0}
body{font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Ubuntu,Arial,sans-serif;color:var(--text);line-height:1.6;background:#fff}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.container{max-width:1100px;margin:0 auto;padding:0 16px}

/* Buttons */
.btn{display:inline-block;background:var(--brand);color:var(--brand-ink);font-weight:800;padding:14px 22px;border-radius:12px;box-shadow:0 8px 22px rgba(255,183,3,.25);transition:transform .15s, box-shadow .15s}
.btn:hover{transform:translateY(-1px);box-shadow:0 14px 26px rgba(255,183,3,.35)}
.btn--sm{padding:10px 14px;border-radius:10px;font-weight:700}
.btn--block{display:block;text-align:center;width:100%}
.btn--ghost{background:#fff;border:1px solid var(--brand);color:#111}
.link{font-weight:700;color:#0ea5e9}

/* Nav */
.nav{position:sticky;top:0;z-index:50;background:#ffffffcc;backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.nav__wrap{display:flex;align-items:center;gap:16px;justify-content:space-between;padding:10px 0}
.nav__links{display:flex;gap:16px}
.nav__links a{color:#111;font-weight:600;opacity:.85}
.nav__links a:hover{opacity:1}
.brand{display:flex;align-items:center;gap:10px}
.brand__logo{height:50px;width:auto}
.brand__name{font-weight:800}

/* Hero */
.hero{background:linear-gradient(180deg,var(--bg-dark),var(--bg-darker));color:#fff;position:relative;overflow:hidden;padding:64px 0}
.hero__shape{position:absolute;inset:auto -20% -30% -20%;height:60%;background:radial-gradient(50% 50% at 50% 50%, rgba(255,183,3,.12), transparent 60%)}
.hero__badge{display:inline-flex;align-items:center;gap:12px;background:#fff;color:#111;border-radius:14px;padding:8px 12px;box-shadow:0 10px 26px rgba(0,0,0,.25)}
.hero__logo{height:45px;width:auto}
.hero h1{margin:18px 0 8px;font-size:clamp(26px,4vw,44px);line-height:1.15}
.grad{background:linear-gradient(90deg,#ffe08a,#ffb703);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__sub{color:#e5e7eb;max-width:720px}
.hero__cta{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:18px 0}
.hero__bullets{list-style:none;padding:0;margin:14px 0 0;color:#c7d2fe;display:flex;gap:12px;flex-wrap:wrap}

/* Badge OK */
.badge-ok{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border-radius:999px;background:rgba(37,211,102,.12);color:#16a34a;border:1px solid rgba(34,197,94,.35);font-weight:700}
.badge-ok .icon{display:inline-block;width:16px;height:16px;line-height:16px;text-align:center;border-radius:999px;background:#16a34a;color:#fff;font-size:12px;font-weight:900}

/* Sections */
.section{padding:56px 0}
.section.alt{background:#f7f8fa}
.section__title{text-align:center;font-size:clamp(22px,3.2vw,32px);margin:0 0 6px}
.section__subtitle{text-align:center;color:var(--muted);margin:0 0 22px}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 8px 20px rgba(0,0,0,.05)}
.card__icon{font-size:28px}
.card h3{margin:6px 0 6px}
.card .list{padding-left:0;list-style:none;color:#111;margin:10px 0}
.card .list li{margin:6px 0}
.card__footer{display:flex;align-items:center;justify-content:space-between;margin-top:12px}
.card--featured{position:relative;border-color:#ffd479;box-shadow:0 10px 28px rgba(255,183,3,.18)}
.card__ribbon{position:absolute;top:12px;right:-10px;background:var(--brand);color:#111;font-weight:800;padding:6px 10px;border-radius:8px}

/* Timeline */
.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:18px}
.step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px}
.step__num{display:inline-flex;width:28px;height:28px;border-radius:8px;align-items:center;justify-content:center;background:var(--brand);color:#111;font-weight:800;margin-bottom:8px}

/* Compare (Before/After) */
.compare{position:relative;max-width:920px;margin:12px auto 0;border-radius:16px;overflow:hidden;box-shadow:0 14px 34px rgba(0,0,0,.12)}
.compare__img{position:absolute;inset:0;object-fit:cover;width:100%;height:420px}
.compare__img--before{filter:saturate(.6) blur(.2px)}
.compare__img--after{clip-path:inset(0 50% 0 0)}
.compare input[type="range"]{position:absolute;left:0;right:0;bottom:12px;width:50%;margin:0 auto;display:block;appearance:none;height:6px;background:#ffffffaa;border-radius:999px}
.compare input[type="range"]::-webkit-slider-thumb{appearance:none;width:18px;height:18px;border-radius:999px;background:var(--brand);border:2px solid #111;cursor:pointer;box-shadow:0 2px 6px rgba(0,0,0,.25)}

/* Pricing */
.pricing{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.plan{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;text-align:center;box-shadow:0 8px 20px rgba(0,0,0,.05)}
.plan--best{border-color:#ffd479;box-shadow:0 12px 28px rgba(255,183,3,.18);position:relative}
.plan__badge{position:absolute;top:12px;right:12px;background:var(--brand);color:#111;font-weight:800;padding:6px 10px;border-radius:8px}
.plan__price{font-size:28px;font-weight:800;margin:8px 0 14px}
.muted{color:var(--muted)}

/* Quotes */
.quotes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
blockquote{background:#fff;border-left:4px solid var(--brand);padding:14px 16px;border-radius:10px;box-shadow:0 6px 18px rgba(0,0,0,.04)}
blockquote span{display:block;color:var(--muted);margin-top:6px}

/* FAQ */
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:10px}
.faq summary{font-weight:700;cursor:pointer}
.faq p{margin:10px 0 0}

/* CTA Final */
.cta-final{background:var(--bg-dark);color:#fff;text-align:center;padding:56px 0}

/* WhatsApp float */
.btn-wa{position:fixed;right:16px;bottom:16px;background:#25D366;color:#111;font-weight:800;border-radius:999px;padding:12px 18px;text-decoration:none;box-shadow:0 10px 22px rgba(0,0,0,.25);z-index:50}

/* Responsive */
@media (max-width:1024px){
  .cards,.pricing,.quotes{grid-template-columns:repeat(2,minmax(0,1fr))}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .nav__links{display:none}
  .cards,.pricing,.quotes{grid-template-columns:1fr}
  .compare__img{height:320px}
}
.compare{
  position: relative;
  max-width: 920px;
  margin: 12px auto 0;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 14px 34px rgba(0,0,0,.12);
  aspect-ratio: 16 / 9;     /* mantiene proporción */
}
.compare__img{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;         /* que llene sin deformar */
}
.compare__img--after{ clip-path: inset(0 50% 0 0); }
.compare input[type="range"]{
  position: absolute;
  left: 0; right: 0; bottom: 12px;
  width: 50%; margin: 0 auto;
  appearance: none; height: 6px;
  background: #ffffffaa; border-radius: 999px;
}
.compare input[type="range"]::-webkit-slider-thumb{
  appearance: none; width: 18px; height: 18px;
  border-radius: 999px; background: #ffb703;
  border: 2px solid #111; cursor: pointer;
  box-shadow: 0 2px 6px rgba(0,0,0,.25);
}