:root{
  --night:#1b110a; --earth:#3a1d0e; --earth2:#2a1409;
  --sun:#f0a21a; --ember:#d9541e; --grass:#3f6b2d;
  --cream:#f7ecd6; --sand:#efe0bd; --ink:#2b1a0e; --muted:#6b5238;
  --wa:#1fa855; --wa-dark:#168a44;
  --r:16px; --shadow:0 10px 30px rgba(27,17,10,.18);
  --title:'Alfa Slab One',Georgia,serif; --body:'Lato',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{font-family:var(--body);color:var(--ink);background:var(--cream);line-height:1.6;font-size:17px;-webkit-text-size-adjust:100%}
img,svg{max-width:100%;display:block}
a{color:inherit}
[hidden]{display:none!important}
.wrap{width:min(1120px,100% - 32px);margin-inline:auto}
.narrow{width:min(760px,100% - 32px)}

/* Botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 26px;border-radius:999px;font-weight:900;font-size:1rem;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s;font-family:var(--body)}
.btn:hover{transform:translateY(-2px)}
.btn-wa{background:var(--wa);color:#fff;box-shadow:0 8px 22px rgba(31,168,85,.4)}
.btn-wa:hover{background:var(--wa-dark)}
.btn-ghost{border-color:rgba(255,255,255,.7);color:#fff;background:rgba(0,0,0,.2)}
.btn-ghost:hover{background:rgba(255,255,255,.15)}
.btn-sm{padding:9px 18px;font-size:.92rem}
.btn-lg{padding:18px 36px;font-size:1.15rem}
.btn-block{width:100%}

/* Barra superior */
.topbar{position:fixed;inset:0 0 auto 0;z-index:50;display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:rgba(27,17,10,.92);backdrop-filter:blur(8px);color:var(--cream);border-bottom:2px solid var(--sun)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--title);font-size:1.02rem}
.brand-mark{width:40px;height:40px;flex:none}
.brand-text b{color:var(--sun);font-weight:400}
.nav{display:flex;align-items:center;gap:20px}
.nav a{text-decoration:none;font-weight:700;font-size:.95rem}
.nav a:not(.btn):hover{color:var(--sun)}
.burger{display:none;background:none;border:0;width:42px;height:42px;cursor:pointer;flex-direction:column;justify-content:center;gap:6px;align-items:center}
.burger span{display:block;width:24px;height:3px;background:var(--cream);border-radius:2px;transition:.2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(9px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-9px) rotate(-45deg)}

/* Hero */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;color:#fff;overflow:hidden;background:var(--night);padding:110px 0 70px}
.hero-art{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(27,17,10,.82) 0%,rgba(27,17,10,.5) 55%,rgba(27,17,10,.1) 100%)}
.hero-inner{position:relative;width:min(1120px,100% - 32px);margin-inline:auto}
.kicker{display:inline-block;background:var(--sun);color:var(--night);font-weight:900;letter-spacing:.08em;text-transform:uppercase;font-size:.78rem;padding:6px 14px;border-radius:999px;margin-bottom:18px}
.hero h1{font-family:var(--title);font-weight:400;font-size:clamp(2.2rem,6.2vw,4.6rem);line-height:1.08;text-shadow:0 4px 20px rgba(0,0,0,.5);margin-bottom:18px}
.hero h1 span{color:var(--sun)}
.hero-sub{max-width:560px;font-size:1.2rem;margin-bottom:28px;text-shadow:0 2px 10px rgba(0,0,0,.5)}
.hero-sub b{color:var(--sun)}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-badges{list-style:none;display:flex;flex-wrap:wrap;gap:8px 22px;font-weight:700;font-size:.95rem}

/* Cifras */
.stats{background:var(--night);color:var(--cream);display:grid;grid-template-columns:repeat(4,1fr);text-align:center;border-block:3px solid var(--sun)}
.stat{padding:26px 12px;border-right:1px solid rgba(240,162,26,.25)}
.stat:last-child{border-right:0}
.stat b{display:block;font-family:var(--title);font-weight:400;font-size:2.4rem;color:var(--sun);line-height:1.1}
.stat span{font-size:.92rem;opacity:.9}

/* Secciones */
.section{padding:84px 0}
.section.sand{background:var(--sand)}
.section.dark{background:var(--earth);color:var(--cream);background-image:radial-gradient(circle at 15% 20%,rgba(240,162,26,.12),transparent 40%),radial-gradient(circle at 90% 80%,rgba(217,84,30,.14),transparent 45%)}
.eyebrow{color:var(--ember);font-weight:900;text-transform:uppercase;letter-spacing:.12em;font-size:.8rem;margin-bottom:8px}
.dark .eyebrow{color:var(--sun)}
h2{font-family:var(--title);font-weight:400;font-size:clamp(1.8rem,4.4vw,2.9rem);line-height:1.15;margin-bottom:14px}
h2::after{content:"";display:block;width:84px;height:5px;margin-top:14px;border-radius:3px;background:repeating-linear-gradient(90deg,var(--sun) 0 14px,var(--ember) 14px 22px)}
.lead{max-width:680px;font-size:1.12rem;color:var(--muted);margin-bottom:38px}
.dark .lead{color:rgba(247,236,214,.85)}

/* Tarjetas */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}
.card{background:#fff;border-radius:var(--r);padding:28px;box-shadow:var(--shadow);border-top:5px solid var(--sun);transition:transform .2s}
.card:hover{transform:translateY(-5px)}
.card .ico{font-size:2.2rem;margin-bottom:10px}
.card h3{font-family:var(--title);font-weight:400;font-size:1.3rem;margin-bottom:8px}
.card p{color:var(--muted)}
.card-cta{background:var(--ember);color:#fff;border-top-color:var(--night);display:flex;flex-direction:column;align-items:flex-start;gap:6px}
.card-cta p{color:rgba(255,255,255,.92);margin-bottom:10px}

/* Garantía */
.guarantees{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:22px}
.g{background:rgba(0,0,0,.25);border:1px solid rgba(240,162,26,.35);border-radius:var(--r);padding:26px}
.g-num{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--sun);color:var(--night);font-family:var(--title);font-size:1.3rem;margin-bottom:14px}
.g h3{font-family:var(--title);font-weight:400;font-size:1.25rem;margin-bottom:6px;color:var(--sun)}

/* Videos */
.video-feature{margin-bottom:22px}
.yt{position:relative;display:block;width:100%;aspect-ratio:16/9;border:0;border-radius:var(--r);overflow:hidden;background:#000 center/cover no-repeat;cursor:pointer;box-shadow:var(--shadow);padding:0}
.yt iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.yt::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(0,0,0,.78))}
.yt .play{position:absolute;top:50%;left:50%;width:68px;height:68px;margin:-34px 0 0 -34px;border-radius:50%;background:var(--ember);display:grid;place-items:center;box-shadow:0 0 0 8px rgba(217,84,30,.35);transition:transform .2s}
.yt:hover .play{transform:scale(1.1)}
.yt .play::after{content:"";margin-left:5px;border-left:22px solid #fff;border-block:13px solid transparent}
.yt .cap{position:absolute;left:16px;right:16px;bottom:14px;color:#fff;text-align:left;font-weight:900;font-size:1.05rem;text-shadow:0 2px 8px #000;z-index:1}
.video-feature .yt .cap{font-family:var(--title);font-weight:400;font-size:clamp(1.1rem,3vw,1.7rem)}
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.video-grid .yt .play{width:54px;height:54px;margin:-27px 0 0 -27px}
.video-grid .yt .play::after{border-left-width:17px;border-block-width:10px}
.video-more{margin-top:26px;text-align:center;font-weight:900}
.video-more a{color:var(--ember)}

/* Galería */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px;box-shadow:var(--shadow)}

/* Pasos */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:22px;margin-top:30px}
.step{background:#fff;border-radius:var(--r);padding:26px;box-shadow:var(--shadow);position:relative}
.step .n{display:grid;place-items:center;width:46px;height:46px;border-radius:50%;background:var(--ember);color:#fff;font-family:var(--title);font-size:1.4rem;margin-bottom:12px}
.step h3{font-family:var(--title);font-weight:400;font-size:1.2rem;margin-bottom:6px}
.step p{color:var(--muted)}
.note{margin-top:22px;font-weight:700;color:var(--muted)}

/* Cobertura */
.two{display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:center}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:10px}
.chips li{background:rgba(240,162,26,.18);border:1px solid var(--sun);padding:6px 16px;border-radius:999px;font-weight:700}
.cover-card{background:var(--cream);color:var(--ink);border-radius:var(--r);padding:32px;text-align:center;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px;align-items:center}
.cover-card h3{font-family:var(--title);font-weight:400;font-size:1.6rem}
.cover-card .phone{font-weight:900;font-size:1.4rem;text-decoration:none;color:var(--ember)}

/* Formulario */
.form{display:grid;gap:16px;background:#fff;padding:28px;border-radius:var(--r);box-shadow:var(--shadow);border-top:5px solid var(--sun)}
.form label{display:grid;gap:6px;font-weight:900;font-size:.95rem}
.form input,.form select,.form textarea{font:inherit;font-weight:400;padding:12px 14px;border:2px solid #d8c7a0;border-radius:10px;background:#fffdf7;color:var(--ink)}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--sun);box-shadow:0 0 0 3px rgba(240,162,26,.3)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-hint{min-height:1.2em;color:var(--ember);font-weight:700;font-size:.92rem}

/* FAQ */
details{background:#fff;border-radius:12px;margin-bottom:12px;box-shadow:0 4px 14px rgba(27,17,10,.1);overflow:hidden}
summary{cursor:pointer;list-style:none;padding:18px 54px 18px 20px;font-weight:900;position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:1.6rem;color:var(--ember);transition:.2s}
details[open] summary::after{content:"–"}
details p{padding:0 20px 20px;color:var(--muted)}

/* CTA final */
.final{background:linear-gradient(135deg,var(--ember),#a73810);color:#fff;text-align:center;padding:76px 0}
.final h2{color:#fff}
.final h2::after{margin-inline:auto}
.final p{font-size:1.15rem;margin-bottom:26px}

/* Footer */
.footer{background:var(--night);color:var(--cream);padding:44px 0 90px}
.foot{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:flex-start}
.foot b{font-family:var(--title);font-weight:400;font-size:1.3rem;color:var(--sun)}
.foot p{opacity:.85;margin-top:6px}
.social{display:flex;flex-wrap:wrap;gap:12px}
.social a{text-decoration:none;font-weight:700;border:1px solid var(--sun);padding:9px 16px;border-radius:999px;transition:.2s}
.social a:hover{background:var(--sun);color:var(--night)}
.copy{text-align:center;opacity:.6;font-size:.85rem;margin-top:30px;padding-inline:16px}

/* WhatsApp flotante */
.wa-float{position:fixed;right:16px;bottom:16px;z-index:60;width:60px;height:60px;border-radius:50%;background:var(--wa);color:#fff;display:grid;place-items:center;box-shadow:0 8px 24px rgba(0,0,0,.35);animation:pulse 2.2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(31,168,85,.6),0 8px 24px rgba(0,0,0,.35)}70%{box-shadow:0 0 0 18px rgba(31,168,85,0),0 8px 24px rgba(0,0,0,.35)}100%{box-shadow:0 0 0 0 rgba(31,168,85,0),0 8px 24px rgba(0,0,0,.35)}}

/* Animación de aparición */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .wa-float{animation:none}
}

/* Móvil */
@media (max-width:860px){
  .burger{display:flex}
  .nav{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--night);padding:8px 16px 18px;border-bottom:2px solid var(--sun);transform:translateY(-12px);opacity:0;pointer-events:none;transition:.2s}
  .nav.open{transform:none;opacity:1;pointer-events:auto}
  .nav a{padding:13px 4px;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav .btn{margin-top:12px;border:0;text-align:center}
  .two{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(-n+2){border-bottom:1px solid rgba(240,162,26,.25)}
  .hero-shade{background:linear-gradient(180deg,rgba(27,17,10,.55),rgba(27,17,10,.82))}
}
@media (max-width:560px){
  body{font-size:16px}
  .section{padding:60px 0}
  .row{grid-template-columns:1fr}
  .hero-cta .btn{width:100%}
  .brand-text{font-size:.88rem}
  .video-grid{grid-template-columns:1fr}
}