/* ====== TOKENS — Frecuentia design system ======
   Todos los colores se expresan como HSL para poder modularlos.
   Replican el "dark theme" original de la web. */
:root{
  --bg-void:        hsl(240 17% 2%);    /* hero / final-cta */
  --bg-primary:     hsl(240 20% 4%);    /* fondo base del body */
  --bg-elevated:    hsl(240 16% 7%);    /* secciones alternas (Problems, Products, FAQ) */
  --bg-surface:     hsl(240 14% 10%);   /* tarjetas hover, barra del browser mockup */
  --primary:        hsl(42 53% 55%);    /* dorado/champán — acento principal */
  --primary-fg:     hsl(240 17% 2%);
  --data:           hsl(168 37% 54%);   /* teal — gráficas "después" */
  --danger:         hsl(9 50% 53%);     /* rojo — gráficas "antes" */
  --text-hero:      hsl(37 45% 93%);    /* títulos */
  --text-primary:   hsl(41 15% 80%);    /* texto principal */
  --text-secondary: hsl(40 8% 45%);     /* texto secundario */
  --text-tertiary:  hsl(40 9% 27%);     /* meta, mono, footer */
  --border:         hsl(0 0% 100% / 0.04);
  --border-hover:   hsl(42 53% 55% / 0.15);

  --font-display: "Zodiak", serif;        /* serif elegante para H1-H3 */
  --font-body:    "General Sans", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg-primary);
  color:var(--text-primary);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}

/* utilidades */
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.narrow{max-width:680px;margin:0 auto;padding:0 24px}
.eyebrow{
  font-family:var(--font-mono);
  font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--primary);
}
.rule{width:40px;height:1px;background:var(--primary);opacity:.4;display:inline-block;vertical-align:middle}

/* ====== Botón CTA principal ====== */
.btn{
  display:inline-block;background:var(--primary);color:var(--primary-fg);
  font-weight:600;padding:16px 40px;font-size:13px;letter-spacing:.06em;
  text-transform:uppercase;transition:.2s;border:0;cursor:pointer;
}
.btn:hover{filter:brightness(1.1);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--text-secondary);padding:16px 8px}

/* ====== NAVBAR ====== */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:1000;padding:20px 0;
  background:rgba(5,5,7,.75);backdrop-filter:blur(20px) saturate(1.2);
  border-bottom:1px solid hsl(42 53% 55% / .06);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between}
.nav img{height:32px}
.nav-links{display:flex;gap:32px}
.nav-links a{
  font-size:13px;letter-spacing:.05em;text-transform:uppercase;
  color:var(--text-secondary);transition:color .2s;
}
.nav-links a:hover{color:var(--text-hero)}
.nav-right{display:flex;gap:24px;align-items:center;font-size:13px}
.lang{color:var(--text-secondary)}
.lang.active{color:var(--primary)}
.nav .btn{padding:12px 24px}

/* ====== HERO ====== */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:var(--bg-void);overflow:hidden;text-align:center;padding:0 24px;
}
.hero::before{ /* placeholder de WaveCanvas: gradiente radial sutil */
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 60%, hsl(42 53% 55% / .06), transparent 70%),
    radial-gradient(ellipse 80% 40% at 50% 90%, hsl(168 37% 54% / .04), transparent 70%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1;max-width:880px}
.hero-tag{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:40px}
.hero-tag span{font-family:var(--font-mono);font-size:12px;letter-spacing:.3em;text-transform:uppercase;color:var(--primary)}
.hero h1{
  font-family:var(--font-display);font-weight:400;
  font-size:clamp(2.5rem,6vw,5rem);line-height:1.05;
  color:var(--text-hero);margin-bottom:32px;
}
.hero h1 span{display:block}
.hero-sub{
  font-size:18px;max-width:520px;margin:0 auto 40px;line-height:1.7;
  color:var(--text-secondary);
}
.hero-ctas{display:flex;gap:16px;justify-content:center;align-items:center;flex-wrap:wrap;margin-bottom:40px}
.hero-footer{
  position:absolute;bottom:32px;left:0;right:0;text-align:center;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--text-tertiary);
}
.hero-footer .sep{color:hsl(42 53% 55% / .4);margin:0 8px}
.scroll-ind{position:absolute;bottom:80px;left:50%;transform:translateX(-50%);width:1px;height:32px;background:var(--primary);opacity:.3}

/* ====== Sección genérica ====== */
section{padding:clamp(80px,12vw,160px) 0}
h2.section-h2{
  font-family:var(--font-display);font-weight:400;
  font-size:clamp(2rem,4vw,3rem);line-height:1.2;color:var(--text-hero);
  text-align:center;margin-bottom:16px;
}
.section-head{text-align:center;margin-bottom:80px}
.section-head .eyebrow{display:block;margin-bottom:16px}
.section-sub{color:var(--text-secondary);font-size:15px;max-width:560px;margin:0 auto}

/* ====== MANIFESTO ====== */
.manifesto{background:var(--bg-primary)}
.manifesto .rule-l{width:40px;height:1px;background:var(--primary);margin-bottom:16px}
.manifesto p.lead{
  font-family:var(--font-display);font-weight:400;
  font-size:clamp(1.4rem,3.5vw,1.75rem);line-height:1.5;color:var(--text-hero);
  margin:32px 0;
}
.manifesto em{color:var(--primary);font-style:normal;text-shadow:0 0 30px hsl(42 53% 55% / .3)}
.manifesto p.body{color:var(--text-secondary);line-height:1.8}

/* ====== PROBLEMS ====== */
.problems{background:var(--bg-elevated)}
.problems-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.problem .num{
  font-family:var(--font-display);font-size:80px;line-height:1;
  color:hsl(42 53% 55% / .1);display:block;margin-bottom:16px;
}
.problem h3{font-family:var(--font-display);font-weight:400;font-size:24px;color:var(--text-hero);margin-bottom:12px}
.problem p{font-size:14px;color:var(--text-secondary);line-height:1.7;margin-bottom:24px}
.problem .rule-s{width:40px;height:1px;background:hsl(42 53% 55% / .3)}

/* ====== CONFIGURATOR ====== */
.cfg{background:var(--bg-void)}
.cfg-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.cfg ul{list-style:none;margin:24px 0 40px}
.cfg li{display:flex;gap:12px;align-items:flex-start;margin-bottom:12px;font-family:var(--font-mono);font-size:14px;color:var(--text-primary)}
.cfg li::before{content:"—";color:var(--primary)}
.cfg p{color:var(--text-secondary);line-height:1.8;margin-bottom:24px}
.cfg .browser{
  border:1px solid var(--border-hover);border-radius:2px;overflow:hidden;
  box-shadow:0 40px 80px rgba(0,0,0,.5);
  transform:perspective(1200px) rotateY(-3deg) rotateX(2deg);transition:transform .5s;
}
.cfg .browser:hover{transform:none}
.cfg .browser-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;background:var(--bg-surface)}
.cfg .browser-bar .dot{width:12px;height:12px;border-radius:50%}
.cfg .dot.r{background:hsl(9 50% 53% / .8)}
.cfg .dot.y{background:hsl(42 53% 55% / .6)}
.cfg .dot.g{background:hsl(168 37% 54% / .6)}
.cfg .browser-bar span{margin-left:12px;font-family:var(--font-mono);font-size:11px;color:var(--text-tertiary)}
.cfg .browser img{aspect-ratio:4/3;width:100%;object-fit:cover;background:var(--bg-void)}

/* ====== HOW IT WORKS ====== */
.how{background:var(--bg-primary)}
.how-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;margin-bottom:64px}
.how-step .num{font-family:var(--font-display);font-size:48px;color:hsl(42 53% 55% / .2);display:block;margin-bottom:16px}
.how-step h3{font-family:var(--font-display);font-weight:400;font-size:18px;color:var(--text-hero);margin-bottom:8px}
.how-step p{font-size:14px;color:var(--text-secondary);line-height:1.7}
.how-cta{text-align:center}

/* ====== PRODUCTS ====== */
.products{background:var(--bg-elevated)}
.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-bottom:64px}
.product{
  position:relative;background:var(--bg-primary);transition:transform .5s;
}
.product:hover{transform:translateY(-12px)}
.product .badge{
  position:absolute;top:16px;left:16px;z-index:2;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.15em;text-transform:uppercase;
  background:hsl(42 53% 55% / .12);color:var(--primary);padding:4px 12px;
}
.product .img-wrap{
  position:relative;aspect-ratio:1;padding:48px;
  background:radial-gradient(circle at 50% 60%, hsl(42 53% 55% / .04), transparent 60%);
}
.product .img-wrap img{width:100%;height:100%;object-fit:contain}
.product .info{padding:20px 24px 24px}
.product h3{font-family:var(--font-display);font-weight:400;font-size:22px;color:var(--text-hero);margin-bottom:8px}
.product .specs{font-family:var(--font-mono);font-size:11px;color:var(--text-tertiary);margin-bottom:12px}
.product .use{font-size:14px;color:var(--text-secondary);line-height:1.6;margin-bottom:16px}
.product .price{font-family:var(--font-display);font-size:32px;color:var(--primary)}
.product .price small{font-family:var(--font-mono);font-size:10px;letter-spacing:.15em;text-transform:uppercase;color:var(--text-tertiary);margin-left:8px}
.product .meta{display:flex;flex-wrap:wrap;gap:4px 16px;margin:16px 0;font-family:var(--font-mono);font-size:11px;color:var(--text-secondary)}
.product .row{border-top:1px solid var(--border);padding:12px 0;display:flex;justify-content:space-between;font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-tertiary)}
.product .row.link{color:var(--primary);justify-content:center}
.products-cta{text-align:center}
.products-cta p{font-size:14px;color:var(--text-secondary);margin-bottom:16px}

/* ====== BEFORE / AFTER ====== */
.ba{background:var(--bg-void)}
.ba .section-head h2{margin-bottom:8px}
.ba .subtitle{font-family:var(--font-mono);font-size:14px;color:var(--text-secondary);text-align:center;margin-bottom:64px}
.ba-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.ba .chart{
  position:relative;background:rgba(255,255,255,.01);
  border:1px solid rgba(255,255,255,.04);box-shadow:0 0 80px -30px hsl(168 37% 54% / .06);
  padding:16px;height:380px;
}
.ba .chart-fake{ /* placeholder estático del spectrum analyzer */
  height:340px;background:
    linear-gradient(180deg, transparent 60%, hsl(9 50% 53% / .12)),
    linear-gradient(180deg, transparent 75%, hsl(168 37% 54% / .12));
  position:relative;
}
.ba .chart-fake::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(to right, hsl(0 0% 100% / .04) 1px, transparent 1px),
    linear-gradient(to bottom, hsl(0 0% 100% / .04) 1px, transparent 1px);
  background-size:10% 25%;
}
.ba .legend{display:flex;gap:24px;margin-top:12px;padding-left:40px}
.ba .legend div{display:flex;gap:8px;align-items:center;font-family:var(--font-mono);font-size:11px;color:var(--text-secondary)}
.ba .legend .swatch{width:24px;height:2px}
.ba .swatch.red{background:hsl(9 50% 53%)}
.ba .swatch.teal{background:hsl(168 37% 54%)}
.ba .metrics{display:flex;flex-direction:column;gap:40px}
.ba .metric .value{font-family:var(--font-display);font-size:48px;color:var(--primary)}
.ba .metric p{font-size:14px;color:var(--text-secondary);margin-top:4px}
.ba .blurb{font-size:14px;color:var(--text-secondary);line-height:1.7}

/* ====== WHY FRECUENTIA ====== */
.why{background:var(--bg-primary)}
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.why-card{
  padding:32px;background:var(--bg-elevated);border:1px solid var(--border);transition:.4s;
}
.why-card:hover{border-color:var(--border-hover);background:var(--bg-surface)}
.why-card .icon{
  width:48px;height:48px;display:flex;align-items:center;justify-content:center;margin-bottom:20px;
  color:var(--primary);background:hsl(42 53% 55% / .06);border:1px solid hsl(42 53% 55% / .1);
}
.why-card h3{font-family:var(--font-display);font-weight:400;font-size:18px;color:var(--text-hero);margin-bottom:12px}
.why-card p{font-size:14px;color:var(--text-secondary);line-height:1.7}

/* ====== TESTIMONIALS ====== */
.tst{background:var(--bg-primary)}
.tst-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.tst-card{
  padding:32px;background:var(--bg-elevated);border:1px solid var(--border);position:relative;
}
.tst-quote{font-family:var(--font-display);font-size:72px;line-height:1;color:hsl(42 53% 55% / .15);margin-bottom:-16px}
.tst-card p{font-size:14px;line-height:1.7;margin-bottom:32px;color:var(--text-primary)}
.tst-meta{display:flex;gap:12px;align-items:center;padding-top:24px;border-top:1px solid var(--border)}
.tst-avatar{
  width:40px;height:40px;border-radius:50%;
  background:hsl(42 53% 55% / .1);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:14px;
}
.tst-name{font-size:14px;font-weight:500;color:var(--text-hero)}
.tst-role{font-family:var(--font-mono);font-size:11px;color:var(--text-tertiary)}

/* ====== FAQ ====== */
.faq{background:var(--bg-elevated)}
.faq-inner{max-width:720px;margin:0 auto;padding:0 24px}
.faq details{border-top:1px solid var(--border);padding:20px 0}
.faq details[open]{}
.faq summary{
  display:flex;justify-content:space-between;align-items:center;cursor:pointer;list-style:none;
  font-weight:500;color:var(--text-hero);font-size:17px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--primary);font-size:22px;font-weight:300}
.faq details[open] summary::after{content:"−"}
.faq details p{padding-top:16px;font-size:15px;line-height:1.8;color:var(--text-secondary)}
.faq .final-rule{border-top:1px solid var(--border)}

/* ====== FINAL CTA ====== */
.final{
  position:relative;background:var(--bg-void);
  padding:clamp(100px,15vw,200px) 0;overflow:hidden;text-align:center;
}
.final::before{
  content:"";position:absolute;inset:0;pointer-events-none;
  background:radial-gradient(ellipse at center, hsl(42 53% 55% / .03), transparent 70%);
}
.final-inner{position:relative;max-width:720px;margin:0 auto;padding:0 24px}
.final .eyebrow-row{display:flex;justify-content:center;align-items:center;gap:12px;margin-bottom:32px}
.final p{font-size:17px;color:var(--text-secondary);margin:24px 0 40px}

/* ====== FOOTER ====== */
footer{background:var(--bg-void);border-top:1px solid var(--border)}
.footer-cta{background:var(--bg-elevated);padding:48px 0}
.footer-cta-inner{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.footer-cta h4{font-family:var(--font-display);font-weight:400;font-size:20px;color:var(--text-hero)}
.footer-cta p{font-size:14px;color:var(--text-secondary);margin-top:4px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;padding:64px 0}
.footer-grid h5{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-secondary);margin-bottom:16px}
.footer-grid ul{list-style:none}
.footer-grid li{margin-bottom:8px}
.footer-grid a{font-size:14px;color:var(--text-tertiary)}
.footer-grid a:hover{color:var(--text-secondary)}
.footer-grid img{height:32px;margin-bottom:12px}
.footer-grid .tagline{font-size:14px;color:var(--text-tertiary);line-height:1.7;margin-bottom:24px}
.footer-bottom{border-top:1px solid var(--border);padding:24px 0;text-align:center;font-family:var(--font-mono);font-size:11px;color:var(--text-tertiary)}

/* ====== Responsive ====== */
@media (max-width:900px){
  .nav-links,.nav-right .lang-sep{display:none}
  .problems-grid,.cfg-grid,.how-grid,.products-grid,.ba-grid,.why-grid,.tst-grid,.footer-grid{
    grid-template-columns:1fr;gap:32px;
  }
}


/* ====== chrome extra ====== */
.nav-logo{display:inline-flex}
.nav-right .lang{color:var(--text-secondary);transition:color .2s}
.nav-right .lang.active{color:var(--primary)}
.nav-right .lang:hover{color:var(--text-hero)}
.lang-sep{color:var(--text-tertiary)}
.badge{display:inline-block;font-family:var(--font-mono);font-size:10px;letter-spacing:.15em;
  text-transform:uppercase;background:hsl(42 53% 55% / .12);color:var(--primary);padding:4px 12px}

/* ====== BEFORE/AFTER CHART (SVG) ====== */
.ba .chart{height:auto}
.ba-chart{width:100%;height:auto;display:block}
.ba-grid{stroke:hsl(0 0% 100% / .06);stroke-width:1}
.ba-xl,.ba-yl{fill:var(--text-tertiary);font-family:var(--font-mono);font-size:11px}
.ba-xl{text-anchor:middle}
.ba-yl{text-anchor:end}
.ba-line-red{fill:none;stroke:hsl(9 50% 53%);stroke-width:2.5;stroke-linecap:round}
.ba-line-teal{fill:none;stroke:hsl(168 37% 54%);stroke-width:2.5;stroke-linecap:round}
.ba-fill-red{fill:hsl(9 50% 53% / .10);stroke:none}
.ba-fill-teal{fill:hsl(168 37% 54% / .12);stroke:none}
.ba-target{stroke:var(--primary);stroke-width:1;stroke-dasharray:4 4;opacity:.45}
.ba-target-lbl{fill:var(--primary);font-family:var(--font-mono);font-size:10px;text-anchor:end}

/* ====== BLOG INDEX ====== */
.blog-index{padding-top:clamp(140px,16vw,200px)}
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{display:flex;flex-direction:column;gap:12px;padding:32px;background:var(--bg-elevated);
  border:1px solid var(--border);transition:.3s}
.post-card:hover{border-color:var(--border-hover);background:var(--bg-surface);transform:translateY(-4px)}
.post-card-top{display:flex;justify-content:space-between;align-items:center;
  font-family:var(--font-mono);font-size:11px;color:var(--text-tertiary)}
.post-cat{color:var(--primary);text-transform:uppercase;letter-spacing:.12em}
.post-card h2{font-family:var(--font-display);font-weight:400;font-size:21px;line-height:1.25;color:var(--text-hero)}
.post-card p{font-size:14px;color:var(--text-secondary);line-height:1.6;flex:1}
.post-date{font-family:var(--font-mono);font-size:11px;color:var(--text-tertiary)}

/* ====== ARTICLE ====== */
.article{max-width:760px;margin:0 auto;padding:clamp(130px,15vw,190px) 24px 80px}
.article-back{font-family:var(--font-mono);font-size:12px;color:var(--text-secondary);
  text-transform:uppercase;letter-spacing:.08em}
.article-back:hover{color:var(--primary)}
.article-meta{display:flex;align-items:center;gap:16px;margin:32px 0 16px}
.article-date{font-family:var(--font-mono);font-size:12px;color:var(--text-tertiary)}
.article-head h1{font-family:var(--font-display);font-weight:400;
  font-size:clamp(2rem,5vw,3rem);line-height:1.12;color:var(--text-hero);margin-bottom:20px}
.article-lead{font-size:19px;line-height:1.6;color:var(--text-secondary);
  padding-bottom:32px;border-bottom:1px solid var(--border)}
.article-body{padding-top:16px}
.article-body h2{font-family:var(--font-display);font-weight:400;font-size:clamp(1.5rem,3vw,2rem);
  color:var(--text-hero);margin:48px 0 16px;line-height:1.25}
.article-body h3{font-family:var(--font-display);font-weight:400;font-size:1.3rem;
  color:var(--text-hero);margin:32px 0 12px}
.article-body p{font-size:17px;line-height:1.8;color:var(--text-primary);margin-bottom:20px}
.article-body ul,.article-body ol{margin:0 0 24px 0;padding-left:24px}
.article-body li{font-size:17px;line-height:1.7;color:var(--text-primary);margin-bottom:8px}
.article-body strong{color:var(--text-hero);font-weight:600}
.article-body a{color:var(--primary);border-bottom:1px solid hsl(42 53% 55% / .3)}
.article-body a:hover{border-color:var(--primary)}
.article-body blockquote{border-left:2px solid var(--primary);padding:8px 0 8px 24px;margin:24px 0;
  font-style:italic;color:var(--text-secondary)}
.article-body hr{border:0;border-top:1px solid var(--border);margin:40px 0}
.article-body figure{margin:32px 0;background:var(--bg-elevated);border:1px solid var(--border);padding:24px}
.article-body figure img{width:100%;max-width:360px;margin:0 auto;object-fit:contain}
.article-body figcaption{font-size:13px;color:var(--text-secondary);text-align:center;
  margin-top:16px;line-height:1.6;font-style:italic}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--border);padding:10px 14px;text-align:left}
.article-body th{color:var(--text-hero);font-weight:600}
.lead-excerpt{font-size:19px;color:var(--text-secondary);line-height:1.7}
.legal-date{font-family:var(--font-mono);font-size:12px;color:var(--text-tertiary);
  margin-top:12px;padding-bottom:24px;border-bottom:1px solid var(--border)}
.article.legal .article-body h2{font-size:1.4rem;margin:40px 0 12px}
.article.legal .article-body{padding-top:8px}
.article-cta{margin-top:56px;padding:40px;background:var(--bg-elevated);border:1px solid var(--border-hover);text-align:center}
.article-cta h3{font-family:var(--font-display);font-weight:400;font-size:1.5rem;color:var(--text-hero);margin-bottom:12px}
.article-cta p{color:var(--text-secondary);margin-bottom:24px}

/* ====== PRODUCT PAGE ====== */
.product-page{padding-top:clamp(120px,14vw,170px);padding-bottom:80px}
.product-hero{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  margin:24px 0 64px}
.product-hero-img{background:radial-gradient(circle at 50% 50%,hsl(42 53% 55% / .06),transparent 65%);
  padding:48px;border:1px solid var(--border)}
.product-hero-img img{width:100%;height:auto;object-fit:contain}
.product-hero-info .badge{margin-bottom:20px}
.product-hero-info h1{font-family:var(--font-display);font-weight:400;
  font-size:clamp(2rem,4vw,2.8rem);line-height:1.15;color:var(--text-hero);margin-bottom:12px}
.product-tagline{font-size:18px;color:var(--text-secondary);margin-bottom:20px}
.product-intro{font-size:16px;line-height:1.7;color:var(--text-primary);margin-bottom:24px}
.product-price .price{font-family:var(--font-display);font-size:40px;color:var(--primary)}
.product-highlights{list-style:none;margin:24px 0 32px;padding:0}
.product-highlights li{display:flex;gap:12px;font-size:15px;color:var(--text-primary);
  line-height:1.6;margin-bottom:10px}
.product-highlights li::before{content:"—";color:var(--primary)}
.product-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:56px;align-items:start}
.product-body h2{font-family:var(--font-display);font-weight:400;font-size:1.6rem;
  color:var(--text-hero);margin:32px 0 14px}
.product-body h2:first-child{margin-top:0}
.product-body p{font-size:16px;line-height:1.8;color:var(--text-primary);margin-bottom:18px}
.product-body ul{margin:0 0 22px 22px}
.product-body li{font-size:16px;line-height:1.7;color:var(--text-primary);margin-bottom:8px}
.product-body strong{color:var(--text-hero)}
.product-body a{color:var(--primary);border-bottom:1px solid hsl(42 53% 55% / .3)}
.product-aside{position:sticky;top:100px}
.ficha,.coef{background:var(--bg-elevated);border:1px solid var(--border);padding:28px;margin-bottom:24px}
.ficha h3,.coef h3{font-family:var(--font-mono);font-size:12px;text-transform:uppercase;
  letter-spacing:.12em;color:var(--text-secondary);margin-bottom:16px}
.ficha table{width:100%;border-collapse:collapse}
.ficha th,.ficha td{padding:8px 0;border-bottom:1px solid var(--border);font-size:13px;
  text-align:left;vertical-align:top}
.ficha th{color:var(--text-secondary);font-weight:500;white-space:nowrap;padding-right:16px}
.ficha td{color:var(--text-hero)}
.coef-vals{font-family:var(--font-mono);font-size:13px;color:var(--text-primary);line-height:1.7}
.coef-note{font-size:12px;color:var(--text-tertiary);margin-top:12px;font-style:italic}
.product-faq{padding:64px 0}
.product-faq .section-h2{margin-bottom:32px}

@media (max-width:900px){
  .blog-grid{grid-template-columns:1fr}
  .product-hero,.product-grid{grid-template-columns:1fr;gap:32px}
  .product-aside{position:static}
}