/* ============================================================ tokens */
:root{
  --ink: #15181c;
  --accent: #f07a13;
  --accent-dark: #c65d08;
  --green: #1a8454;
  --grey: #5a6a75;
  --grey-l: #f3f6f8;
  --border: #d5dde3;
  --white: #ffffff;
  --accent-l: #fdf0e3;
  --green-l: #e6f3ec;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --wrap: 1120px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  line-height:1.55;
}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}

h1,h2,h3{font-family:var(--font-display);font-weight:600;line-height:1.15;margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important;animation-iteration-count:1 !important;transition-duration:0.001ms !important;}
}

/* ------------------------------------------------------------ buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:10px;
  font-family:var(--font-body);font-weight:600;font-size:15px;
  text-decoration:none;border:1.5px solid transparent;cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.btn--accent{
  background:linear-gradient(135deg,#ff9d3d,var(--accent) 55%,var(--accent-dark));
  color:var(--white);box-shadow:0 10px 24px -8px rgba(240,122,19,.55);
}
.btn--accent:hover{transform:translateY(-2px);box-shadow:0 16px 30px -8px rgba(240,122,19,.6)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--border)}
.btn--ghost:hover{border-color:var(--ink);transform:translateY(-1px)}
.btn--lg{padding:15px 30px;font-size:16px}
.btn--sm{padding:9px 18px;font-size:13.5px}
.btn--block{width:100%}

/* ------------------------------------------------------- scroll reveal */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}
.reveal.is-visible{opacity:1;transform:translateY(0)}

/* --------------------------------------------------------- icon badge */
.icon-badge{
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
  width:42px;height:42px;border-radius:50%;background:var(--accent-l);color:var(--ink);
}
.icon-badge svg{width:21px;height:21px}
.icon-badge--sm{width:34px;height:34px}
.icon-badge--sm svg{width:17px;height:17px}

/* ------------------------------------------------------ decorative bg */
.deco-triangle{
  position:absolute;width:60vw;max-width:640px;aspect-ratio:1;pointer-events:none;z-index:0;
  background:linear-gradient(135deg,var(--accent-l) 0%,transparent 68%);
  clip-path:polygon(100% 0, 100% 100%, 15% 100%);
}

.kicker{
  font-family:var(--font-mono);font-size:13px;color:var(--accent-dark);
  margin:0 0 14px;font-weight:500;
}
.kicker--light{color:#ffd9ae}

.section-title{font-size:clamp(24px,3.4vw,34px);max-width:640px}
.section-lead{color:var(--grey);font-size:16.5px;max-width:560px;margin-top:12px}
.section-lead--wide{max-width:720px}

/* --------------------------------------------------------------- nav */
.nav{
  position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--border);
}
.nav__inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.wordmark{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-display);font-weight:700;font-size:19px;letter-spacing:.01em;
  text-decoration:none;color:var(--ink);
}
.wordmark__icon{width:26px;height:26px;flex-shrink:0}
.wordmark .dot{color:var(--accent)}
.nav__links{display:flex;gap:30px}
.nav__links a{text-decoration:none;color:var(--ink);font-size:14.5px;font-weight:500}
.nav__links a:hover{color:var(--accent-dark)}
.nav__cta{white-space:nowrap}
.nav .wordmark__full{height:30px}
@media (max-width:820px){.nav__links{display:none}}

/* -------------------------------------------------------------- hero */
.hero{
  background:var(--white);
  color:var(--ink);
  padding:72px 0 96px;
  position:relative;
  overflow:hidden;
}
.hero__inner{
  display:grid;grid-template-columns:1.15fr 0.85fr;gap:56px;align-items:center;
  position:relative;z-index:1;
}
.hero .deco-triangle{top:-120px;right:-160px}
.hero .kicker{color:var(--accent-dark)}
.hero h1{font-size:clamp(30px,4.1vw,46px);color:var(--ink);max-width:620px}
.hero__lead{margin-top:22px;font-size:17px;color:var(--grey);max-width:520px}
.hero__lead strong{color:var(--ink)}
.hero__ctas{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}

.hero__proof{display:flex;align-items:center;gap:20px;margin-top:48px;flex-wrap:wrap}
.proof__item{display:flex;flex-direction:column}
.proof__item b{font-family:var(--font-mono);font-size:22px;color:var(--ink)}
.proof__item span{font-size:12.5px;color:var(--grey);max-width:150px}
.proof__item--lead b{font-size:32px;color:var(--accent-dark)}
.proof__sep{width:1px;height:32px;background:var(--border)}

/* ---------------------------------------------------------- 3d mockup */
.hero__art{display:flex;justify-content:center;perspective:1400px}
.book{
  position:relative;width:360px;
  transform-style:preserve-3d;
  animation:float 6s ease-in-out infinite;
}
@keyframes float{
  0%,100%{transform:rotateY(-22deg) rotateX(4deg) translateY(0)}
  50%{transform:rotateY(-22deg) rotateX(4deg) translateY(-14px)}
}
.book--static{animation:none;transform:rotateY(-22deg) rotateX(4deg)}
.book__cover{
  position:relative;border-radius:4px 6px 6px 4px;overflow:hidden;
  box-shadow:0 35px 70px -15px rgba(0,0,0,.6), 0 0 0 1px rgba(255,255,255,.06);
  transform:translateZ(18px);
}
.book__cover img{display:block;width:100%}
.book__cover::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(115deg, rgba(255,255,255,.4) 0%, rgba(255,255,255,.05) 22%, rgba(255,255,255,0) 45%, rgba(0,0,0,0) 75%, rgba(0,0,0,.18) 100%);
}
.book__spine{
  position:absolute;top:0;bottom:0;left:0;width:9px;z-index:2;
  background:linear-gradient(90deg, rgba(0,0,0,.4), rgba(0,0,0,0));
}
.book__page{
  position:absolute;top:6px;bottom:6px;right:-4px;left:10px;
  background:linear-gradient(90deg,#f2f4f5 0%,#e7ebed 85%,#dde2e5 100%);
  border-radius:1px 4px 4px 1px;
  box-shadow:inset 0 0 0 1px rgba(0,0,0,.03);
}
.book__page--2{transform:translateZ(9px) translateX(4px);background:linear-gradient(90deg,#eaedef 0%,#dfe4e7 85%,#d3d9dc 100%)}
.book__page--3{transform:translateZ(0px) translateX(8px);background:linear-gradient(90deg,#dee2e5 0%,#d2d8db 85%,#c6cdd1 100%)}
.book__shadow{
  position:absolute;left:4%;right:-8%;bottom:-28px;height:38px;
  background:radial-gradient(ellipse at center, rgba(0,0,0,.5) 0%, transparent 72%);
  transform:translateZ(-40px) scaleX(1.08);
  filter:blur(3px);
}

.badge-float{
  position:absolute;background:var(--white);color:var(--ink);
  font-family:var(--font-mono);font-size:11.5px;font-weight:500;line-height:1.35;
  padding:10px 13px;border-radius:9px;box-shadow:0 14px 30px -8px rgba(0,0,0,.35);
  transform:translateZ(50px);
}
.badge-float--bottom{bottom:34px;left:-46px;background:var(--accent);color:var(--white)}
@media (max-width:900px){
  .badge-float{display:none}
}

@media (max-width:900px){
  .hero__inner{grid-template-columns:1fr;text-align:left}
  .hero__art{margin-top:20px}
  .book{width:260px}
}

/* --------------------------------------------------------------- roi */
.roi{background:var(--accent);color:var(--white);padding:56px 0}
.roi__eyebrow{font-family:var(--font-mono);font-size:13px;color:#fff0de;margin:0 0 10px}
.roi h2{font-size:clamp(24px,3.2vw,32px);max-width:680px;color:var(--white)}
.roi h2 span{color:var(--ink)}
.roi__steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:32px;max-width:820px}
.roi__step{
  text-align:center;padding:24px 14px;border-radius:14px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);
}
.roi__step b{display:block;font-family:var(--font-mono);font-size:30px;color:var(--white)}
.roi__step span{display:block;font-size:13.5px;color:#fff0de;margin-top:8px;font-weight:600}
.roi__step--done{background:var(--white);border-color:var(--white)}
.roi__step--done b{color:var(--accent-dark)}
.roi__step--done span{color:var(--ink)}
@media (max-width:700px){.roi__steps{grid-template-columns:1fr}}
.roi__math{margin-top:28px;max-width:820px}
.roi__math p{font-size:15.5px;color:#fff5e8;line-height:1.6}
.roi__math b{color:var(--white)}

/* ----------------------------------------------------------- problem */
.problem{padding:88px 0;background:var(--white)}
.problem__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:44px}
.problem__card{border-top:2px solid var(--ink);padding-top:20px;transition:transform .25s ease}
.problem__card:hover{transform:translateY(-3px)}
.problem__card-head{display:flex;align-items:center;gap:14px}
.problem__num{font-family:var(--font-mono);color:var(--accent);font-size:14px}
.problem__card h3{font-size:19px;margin-top:10px}
.problem__card p{color:var(--grey);font-size:14.5px;margin-top:10px}
@media (max-width:820px){.problem__grid{grid-template-columns:1fr}}

/* ------------------------------------------------------------ inside */
.inside{padding:88px 0;background:var(--grey-l)}
.inside__grid{display:grid;grid-template-columns:1.3fr 0.7fr;gap:48px;margin-top:44px;align-items:start}
.toc{display:flex;flex-direction:column}
.toc li{
  display:flex;gap:18px;align-items:baseline;padding:14px 0;
  border-bottom:1px solid var(--border);font-size:15.5px;
}
.toc li span{font-family:var(--font-mono);color:var(--accent);font-size:13px;flex-shrink:0;width:20px}
.inside__mock{border-radius:14px;overflow:hidden;box-shadow:0 24px 50px -20px rgba(14,42,61,.35)}
@media (max-width:900px){.inside__grid{grid-template-columns:1fr}.inside__mock{max-width:280px;margin:0 auto}}

/* -------------------------------------------------------------- data */
.data{padding:88px 0;background:var(--accent-l)}
.data .section-title{color:var(--ink)}
.data .section-lead{color:var(--grey)}
.data__stats{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:44px}
.data__stat{border-left:2px solid var(--accent);padding-left:20px}
.data__num{display:block;font-family:var(--font-mono);font-size:38px;color:var(--ink)}
.data__num small{font-size:20px;color:var(--grey)}
.data__label{display:block;margin-top:10px;font-size:14px;color:var(--grey);max-width:230px}
@media (max-width:820px){.data__stats{grid-template-columns:1fr}}

/* ----------------------------------------------------------- pricing */
.pricing{padding:88px 0;background:var(--white)}
.price-card__price{display:flex;align-items:baseline;gap:12px}
.price-card__old{font-family:var(--font-mono);font-size:18px;color:#a9b6be;text-decoration:line-through}
.price-card__new{font-family:var(--font-mono);font-size:42px;font-weight:600;color:var(--accent-dark)}
.price-card__note{font-size:12.5px;color:var(--grey)}

/* --------------------------------------------------------------- faq */
.faq{padding:88px 0;background:var(--grey-l)}
.faq__list{margin-top:36px;display:grid;grid-template-columns:repeat(2,1fr);gap:14px;align-items:start}
.faq__item{background:var(--white);border:1px solid var(--border);border-radius:10px;padding:6px 22px;margin:0}
@media (max-width:820px){.faq__list{grid-template-columns:1fr}}
.faq__item summary{
  padding:16px 0;cursor:pointer;font-weight:600;font-size:15.5px;
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{
  content:"+";font-family:var(--font-mono);font-size:20px;color:var(--accent);flex-shrink:0;
  transition:transform .2s ease;
}
.faq__item[open] summary::after{transform:rotate(45deg)}
.faq__answer{padding:0 0 20px;color:var(--grey);font-size:14.5px;max-width:640px}

/* ----------------------------------------------------------- contact */
.contact{padding:88px 0;background:var(--white)}
.contact__inner{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.contact__copy h2{font-size:clamp(24px,3vw,30px);max-width:420px}
.contact__copy p{color:var(--grey);margin-top:16px;font-size:15px;max-width:420px}
.contact__direct{margin-top:20px !important}
.contact__direct a{color:var(--accent-dark);font-weight:600;text-decoration:none}

.contact__form{display:flex;flex-direction:column;gap:16px;background:var(--grey-l);padding:32px;border-radius:14px;border:1px solid var(--border)}
.contact__form label{display:flex;flex-direction:column;gap:7px;font-size:13.5px;font-weight:600;color:var(--ink)}
.contact__form .opt{font-weight:400;color:var(--grey)}
.contact__form input,.contact__form textarea{
  font-family:var(--font-body);font-size:14.5px;padding:11px 13px;
  border:1.5px solid var(--border);border-radius:8px;background:var(--white);
  color:var(--ink);resize:vertical;
}
.contact__form input:focus,.contact__form textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
.contact__status{font-size:13.5px;min-height:18px}
.contact__status.ok{color:var(--green)}
.contact__status.err{color:#b3261e}
@media (max-width:820px){.contact__inner{grid-template-columns:1fr}}

/* --------------------------------------------------------- product page */
.product{display:grid;grid-template-columns:1.05fr 0.95fr;gap:40px;margin-top:40px;align-items:start}
.product__main{border-radius:16px;overflow:hidden;box-shadow:0 30px 60px -20px rgba(14,42,61,.35);background:var(--grey-l)}
.product__main img{width:100%;display:block}
.product__thumbs{display:flex;gap:10px;margin-top:14px}
.product__thumbs img{
  width:64px;height:64px;object-fit:cover;border-radius:8px;cursor:pointer;
  border:2px solid transparent;opacity:.6;transition:opacity .15s ease,border-color .15s ease;
}
.product__thumbs img:hover{opacity:.85}
.product__thumbs img.active{opacity:1;border-color:var(--accent)}

.product__buy{
  position:relative;background:var(--white);border:1px solid var(--border);border-radius:20px;
  padding:46px 36px 36px;display:flex;flex-direction:column;gap:16px;
  box-shadow:0 40px 70px -35px rgba(14,22,26,.28), 0 2px 10px rgba(14,22,26,.05);
}
.product__discount{
  position:absolute;top:-22px;right:26px;
  background:linear-gradient(135deg,#25a06a,var(--green));color:var(--white);
  font-family:var(--font-mono);font-weight:700;font-size:26px;padding:13px 22px;
  border-radius:999px;box-shadow:0 16px 32px -8px rgba(26,132,84,.6),0 0 0 4px var(--white);
  transform:rotate(-4deg);
}
.product__trust{
  display:inline-flex;align-items:center;gap:7px;font-family:var(--font-mono);font-size:11.5px;
  color:var(--green);background:var(--green-l);padding:6px 12px;border-radius:20px;
  align-self:flex-start;
}
.product__buy .kicker--light{color:var(--accent-dark)}
.product__buy h2{font-size:24px}
.product__buy .price-card__old{color:#a9b6be}
.product__buy .price-card__new{color:var(--accent-dark)}
.product__save{margin-top:-8px;font-size:13.5px;font-weight:600;color:var(--green)}

.product__social{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:2px 0 4px}
.product__social-item{display:flex;align-items:center;gap:7px;font-size:12.5px;color:var(--grey)}
.product__social-item b{font-family:var(--font-mono);font-size:16px;color:var(--ink);font-weight:600}
.product__social-sep{width:1px;height:18px;background:var(--border)}
.pulse-dot{
  width:7px;height:7px;border-radius:50%;background:var(--green);display:inline-block;
  box-shadow:0 0 0 0 rgba(26,132,84,.6);animation:pulse 1.8s ease-out infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(26,132,84,.55)}
  70%{box-shadow:0 0 0 6px rgba(26,132,84,0)}
  100%{box-shadow:0 0 0 0 rgba(26,132,84,0)}
}

.product__benefits{display:flex;flex-direction:column;gap:11px;margin-top:2px}
.product__benefits li{font-size:14.5px;color:var(--ink);padding-left:28px;position:relative}
.product__benefits li::before{
  content:"";position:absolute;left:0;top:2px;width:19px;height:19px;border-radius:50%;
  background:var(--green);
}
.product__benefits li::after{
  content:"";position:absolute;left:6px;top:6px;width:8px;height:5px;
  border-left:2px solid var(--white);border-bottom:2px solid var(--white);transform:rotate(-45deg);
}
.product__benefits-extra[hidden]{display:none}
.product__more-btn{
  align-self:flex-start;background:none;border:none;padding:0;margin-top:-2px;cursor:pointer;
  color:var(--accent-dark);font-weight:600;font-size:13.5px;font-family:var(--font-body);
  display:inline-flex;align-items:center;gap:6px;
}
.product__more-btn .caret{font-size:11px;transition:transform .2s ease}
.product__more-btn[aria-expanded="true"] .caret{transform:rotate(180deg)}

.product__buy .btn{margin-top:4px}
@media (max-width:900px){.product{grid-template-columns:1fr}}

/* --------------------------------------------------------- nav (back) */
.nav__back{font-size:14px;color:var(--grey);text-decoration:none;font-weight:500}
.nav__back:hover{color:var(--accent-dark)}

/* ------------------------------------------------------------- card */
.card{border:1px solid var(--border);border-radius:14px;padding:32px;background:var(--white)}
.card h1,.card h3{margin-top:0}
.card p{color:var(--grey);margin-top:10px;font-size:14.5px}
.card__links{margin-top:16px;display:flex;gap:24px;flex-wrap:wrap;font-weight:600;font-size:14.5px}
.card__links a{color:var(--accent-dark);text-decoration:none}
.card__links a:hover{text-decoration:underline}

/* ---------------------------------------------------- disponibilidad */
.contact__avail{
  margin-top:20px !important;display:inline-flex;align-items:center;gap:9px;
  font-size:13.5px;color:var(--ink);background:var(--green-l);padding:8px 14px;border-radius:20px;
}

/* ------------------------------------------------------------ footer */
.footer{background:var(--grey-l);color:var(--grey);padding:40px 0;border-top:1px solid var(--border)}
.footer__inner{display:flex;flex-direction:column;gap:6px}
.wordmark--footer{color:var(--ink);font-size:17px}
.wordmark__full{height:26px;width:auto;display:block}
.footer p{font-size:13px}
.footer__legal{color:#8798a2;max-width:560px;margin-top:8px}