*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:#1f2937;background:#fff;line-height:1.6;font-size:17px}
img{max-width:100%;height:auto;display:block}
a{color:#2563eb}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
.narrow{max-width:760px}

/* Header */
.top{border-bottom:1px solid #e5e7eb;background:#fff;position:sticky;top:0;z-index:10}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:12px}
.logo{font-weight:800;font-size:20px;color:#111827;text-decoration:none;white-space:nowrap}
.logo span{color:#16a34a}
.nav{display:flex;gap:16px;font-size:15px}
.nav a{color:#374151;text-decoration:none;font-weight:600}
.nav a:hover{color:#16a34a}

/* Buttons */
.btn{display:inline-block;padding:14px 22px;border-radius:10px;font-weight:700;text-decoration:none;text-align:center;border:0;cursor:pointer;font-size:17px;line-height:1.2}
.btn-buy{background:#16a34a;color:#fff}
.btn-buy:hover{background:#15803d}
.btn-mp{background:#009ee3;color:#fff}
.btn-mp:hover{background:#0284c7}
.btn-ghost{background:#fff;color:#111827;border:2px solid #111827}
.btn-sm{padding:8px 14px;font-size:15px}
.btn-block{display:block;width:100%}

/* Hero */
.hero{background:#f0fdf4;padding:56px 0 48px;text-align:center}
.hero h1{font-size:clamp(30px,5vw,46px);line-height:1.15;margin:0 0 16px;color:#111827}
.hero p{font-size:19px;max-width:640px;margin:0 auto 26px;color:#374151}
.hero .btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.trust{display:flex;gap:10px 22px;justify-content:center;flex-wrap:wrap;margin-top:26px;font-size:15px;font-weight:600;color:#166534}

/* Sections */
section{padding:52px 0}
h2{font-size:clamp(24px,3.5vw,32px);line-height:1.2;margin:0 0 10px;color:#111827}
.sub{color:#6b7280;margin:0 0 28px}
.alt{background:#f9fafb}

/* Product cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:22px}
.card{display:flex;flex-direction:column;border:1px solid #e5e7eb;border-radius:14px;overflow:hidden;text-decoration:none;color:inherit;background:#fff;transition:box-shadow .15s,transform .15s}
.card:hover{box-shadow:0 10px 30px rgba(0,0,0,.08);transform:translateY(-2px)}
.card img{aspect-ratio:3/4;object-fit:cover;object-position:top;max-height:300px;width:100%;border-bottom:1px solid #e5e7eb}
.card-body{padding:16px;display:flex;flex-direction:column;flex:1}
.card h3{margin:6px 0 6px;font-size:20px;line-height:1.25;color:#111827}
.card p{margin:0 0 14px;color:#4b5563;font-size:15px}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px}
.badge{display:inline-block;font-size:13px;font-weight:700;color:#166534;background:#dcfce7;padding:3px 10px;border-radius:99px;align-self:flex-start}
.price{font-size:24px;font-weight:800;color:#111827}
.price small{display:block;font-size:13px;font-weight:600;color:#6b7280}

.card[hidden]{display:none}
.badge-m{background:#dbeafe;color:#1e40af}

/* Buscador y filtro */
.filters{display:flex;flex-direction:column;gap:12px}
#q{width:100%;padding:14px 16px;font:inherit;font-size:17px;border:2px solid #d1d5db;border-radius:10px}
#q:focus{outline:none;border-color:#16a34a}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{padding:8px 14px;border-radius:99px;border:1.5px solid #d1d5db;background:#fff;font:inherit;font-size:15px;font-weight:600;color:#374151;cursor:pointer}
.chip:hover{border-color:#16a34a}
.chip.on{background:#16a34a;border-color:#16a34a;color:#fff}
.count{font-size:14px;color:#6b7280;margin:8px 0 14px;min-height:1.6em}
.empty{text-align:center;padding:30px 0;color:#6b7280}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;counter-reset:s}
.step{background:#fff;border:1px solid #e5e7eb;border-radius:14px;padding:20px}
.step b{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:#16a34a;color:#fff;margin-bottom:10px}
.step h3{margin:0 0 6px;font-size:18px}
.step p{margin:0;color:#4b5563;font-size:15px}

/* Free box */
.free-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(420px,1fr));gap:20px}
.free{background:#fff7ed;border:2px dashed #ea580c;border-radius:16px;padding:22px;display:flex;gap:22px;align-items:center}
.free img{width:150px;flex-shrink:0;border-radius:8px;box-shadow:0 6px 20px rgba(0,0,0,.12);transform:rotate(-2deg)}
.free h3{color:#9a3412;margin:0 0 6px;font-size:21px;line-height:1.25}
.free p{margin:0 0 14px;font-size:15px}
.free-btn{max-width:320px}
.free-more{margin:14px 0 0;font-size:15px}
.soon{font-weight:800;color:#9a3412;background:#ffedd5;padding:4px 10px;border-radius:8px;font-size:15px}
.sample{display:block;margin-top:16px;padding:12px;border-radius:10px;background:#fff7ed;color:#9a3412;font-weight:700;text-align:center;text-decoration:none;font-size:15px}
.sample:hover{background:#ffedd5}

/* Product page */
.crumbs{font-size:14px;color:#6b7280;padding-top:16px}
.crumbs a{color:#6b7280}
.product{display:grid;grid-template-columns:1.2fr 1fr;gap:36px;padding-top:20px;padding-bottom:40px;align-items:start}
.product h1{font-size:clamp(28px,4.5vw,40px);line-height:1.15;margin:8px 0 10px;color:#111827}
.lead{font-size:19px;color:#374151;margin:0 0 18px}
.previews{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.previews img{border:1px solid #e5e7eb;border-radius:8px;box-shadow:0 4px 14px rgba(0,0,0,.06)}
.note{font-size:14px;color:#6b7280;margin-top:8px}
.buybox{border:2px solid #16a34a;border-radius:16px;padding:22px;position:sticky;top:76px;background:#fff}
.buybox .price{font-size:38px}
.buybox .opt{margin-top:16px}
.buybox .opt small{display:block;text-align:center;color:#6b7280;font-size:13px;margin-top:5px}
.checks{list-style:none;padding:0;margin:18px 0 0;font-size:15px}
.checks li{padding:3px 0}
.checks li::before{content:"✔ ";color:#16a34a;font-weight:800}
.includes{list-style:none;padding:0}
.includes li{padding:8px 0 8px 30px;border-bottom:1px solid #f3f4f6;position:relative}
.includes li::before{content:"✔";position:absolute;left:4px;color:#16a34a;font-weight:800}
.desc h3{font-size:21px;margin:28px 0 6px;color:#111827}
.meta-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:6px}
.sticky-buy{display:none}

/* FAQ */
details{border:1px solid #e5e7eb;border-radius:10px;padding:14px 16px;margin-bottom:10px;background:#fff}
summary{font-weight:700;cursor:pointer}
details p{margin:10px 0 0;color:#4b5563}

/* Blog */
.posts{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.post-card{border:1px solid #e5e7eb;border-radius:14px;padding:20px;text-decoration:none;color:inherit;background:#fff}
.post-card h3{margin:0 0 8px;font-size:19px;color:#111827}
.post-card p{margin:0;color:#4b5563;font-size:15px}
article h1{font-size:clamp(28px,4.5vw,40px);line-height:1.15;margin:24px 0 8px}
article h2{font-size:24px;margin:30px 0 8px}
article table{border-collapse:collapse;width:100%;font-size:15px;margin:10px 0}
article th,article td{border:1px solid #d1d5db;padding:8px;text-align:left;vertical-align:top}
article th{background:#f3f4f6}
.date{color:#6b7280;font-size:14px}
.cta{background:#f0fdf4;border:2px solid #16a34a;border-radius:16px;padding:22px;margin:34px 0;display:flex;gap:18px;align-items:center}
.cta img{width:110px;border:1px solid #e5e7eb;border-radius:6px}
.cta h3{margin:0 0 6px}
.cta p{margin:0 0 12px}

/* Footer */
footer{background:#111827;color:#d1d5db;padding:36px 0;font-size:15px}
footer a{color:#fff}
footer .cols{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.social{display:flex;gap:14px}

@media (max-width:760px){
  .nav{gap:12px;font-size:14px}
  .product{grid-template-columns:1fr;gap:22px}
  .buybox{position:static}
  .sticky-buy{display:flex;position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid #e5e7eb;padding:10px 16px;align-items:center;justify-content:space-between;z-index:20;box-shadow:0 -4px 14px rgba(0,0,0,.06)}
  .sticky-buy .price{font-size:22px}
  body.has-sticky{padding-bottom:72px}
  .cta{flex-direction:column;text-align:center}
  .free-grid{grid-template-columns:1fr}
  .free{flex-direction:column;text-align:center;padding:22px 16px}
  .free img{width:150px}
  .free-btn{margin:0 auto}
}