:root{
  --bg:#ffffff;
  --ink:#0e1420;
  --muted:#5b6675;
  --silver:#eef1f5;
  --silver2:#f6f7fb;
  --line:#dfe4ea;
  --lime:#b7e000;
  --lime2:#9bd400;
  --radius:22px;
  --shadow: 0 10px 30px rgba(14,20,32,.08);
  --shadow2: 0 6px 18px rgba(14,20,32,.08);
  --max: 1120px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  color:var(--ink);
  background:var(--bg);
  line-height:1.35;
}

a{color:inherit;text-decoration:none}
.container{max-width:var(--max); margin:0 auto; padding:0 20px;}

.topbar{
  position:sticky; top:0; z-index:50;
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(10px);
  border-bottom:1px solid rgba(223,228,234,.7);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  gap:18px;
  padding:14px 0;
}
.brand{
  display:flex; align-items:center; gap:10px;
  font-weight:800; letter-spacing:.08em;
}
.brand-badge{
  width:34px;height:34px;border-radius:10px;
  background: linear-gradient(135deg, var(--silver), white);
  border:1px solid var(--line);
  display:grid;place-items:center;
  box-shadow: var(--shadow2);
  font-size:12px;
}
.brand span{font-size:14px}
.navlinks{display:flex; gap:18px; align-items:center; color:var(--muted); font-weight:600; font-size:14px}
.navlinks a{padding:8px 10px;border-radius:999px}
.navlinks a:hover{background:var(--silver2); color:var(--ink)}
.navcta{display:flex; gap:10px; align-items:center}
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:12px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:white;
  font-weight:700;
  box-shadow: var(--shadow2);
}
.btn:hover{transform: translateY(-1px)}
.btn-primary{
  background: linear-gradient(135deg, var(--lime), var(--lime2));
  border-color: rgba(0,0,0,.05);
}
.btn-primary:hover{filter:saturate(1.06)}
.btn-ghost{
  background: rgba(255,255,255,.7);
}

.hero{
  padding:44px 0 22px;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap:26px;
  align-items:stretch;
}
.hero-copy{
  padding:34px;
  border-radius: var(--radius);
  background: radial-gradient(1200px 420px at 0% 0%, rgba(183,224,0,.18), rgba(255,255,255,0) 60%),
              linear-gradient(180deg, #ffffff, #fbfcff);
  border:1px solid var(--line);
  box-shadow: var(--shadow);
}
.h1{
  font-size: clamp(38px, 5vw, 58px);
  line-height:1.02;
  letter-spacing:-.02em;
  margin:0 0 14px;
}
.lead{
  font-size: clamp(15px, 1.5vw, 18px);
  color:var(--muted);
  margin:0 0 18px;
  max-width: 52ch;
}
.mini{
  font-size: 14px;
  color: var(--muted);
  margin: 0 0 18px;
}
.pills{display:flex; flex-wrap:wrap; gap:10px; margin: 18px 0 22px}
.pill{
  display:inline-flex; gap:8px; align-items:center;
  padding:10px 12px;
  border:1px solid var(--line);
  border-radius:999px;
  background:white;
  color:var(--muted);
  font-weight:700;
  font-size:13px;
}
.dot{width:10px;height:10px;border-radius:99px;background:var(--lime)}
.hero-actions{display:flex; gap:12px; flex-wrap:wrap}

.hero-media{
  position:relative;
  border-radius: var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  background: linear-gradient(135deg, var(--silver2), white);
  box-shadow: var(--shadow);
  min-height: 420px;
}
.hero-media img{
  width:100%; height:100%;
  /* En el hero priorizamos el frasco + splash (menos "agua vacía") */
  object-fit: cover;
  object-position: 38% 55%;
  display:block;
  transform: none;
}

/* Iconitos en el header de la tabla comparativa */
.th-ico{
  display:inline-flex;
  width:18px; height:18px;
  margin-left:8px;
  vertical-align:middle;
  color: rgba(12, 18, 28, .55);
}
.th-ico svg{width:100%; height:100%}

/* Iconitos en los pasos */
.step{position:relative}
.step .ico{
  position:absolute;
  top:14px;
  right:14px;
  width:22px;
  height:22px;
  color: rgba(12, 18, 28, .35);
}
.step .ico svg{width:100%; height:100%}

/* FAQ (acordeón) */
.faq{
  display:grid;
  gap:10px;
}
.faq details{
  border:1px solid rgba(12, 18, 28, .08);
  background: var(--card);
  border-radius: 16px;
  overflow:hidden;
}
.faq summary{
  list-style:none;
  cursor:pointer;
  padding:14px 16px;
  font-weight:800;
  color: var(--ink);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.faq summary::-webkit-details-marker{display:none;}
.faq .faq-chevron{
  width:14px; height:14px;
  border-right:2px solid rgba(12,18,28,.55);
  border-bottom:2px solid rgba(12,18,28,.55);
  transform: rotate(45deg);
  transition: transform .18s ease;
  flex: 0 0 auto;
}
.faq details[open] .faq-chevron{
  transform: rotate(225deg);
}
.faq .faq-body{
  padding:0 16px 16px 16px;
  color: var(--muted);
  line-height:1.6;
}
.faq .faq-body p{margin:10px 0 0;}
.hero-media:after{
  content:"";
  position:absolute; inset:0;
  background: radial-gradient(600px 300px at 20% 25%, rgba(183,224,0,.14), transparent 60%),
              linear-gradient(180deg, rgba(255,255,255,.1), rgba(255,255,255,.0));
  pointer-events:none;
}

.section{padding:44px 0}
.section.alt{background: linear-gradient(180deg, var(--silver2), #ffffff)}
.section-header{
  display:flex; align-items:flex-end; justify-content:space-between; gap:20px;
  margin-bottom:18px;
}
.section h2{
  margin:0;
  font-size: clamp(26px, 2.6vw, 34px);
  letter-spacing:-.01em;
}
.section .sub{margin:6px 0 0; color:var(--muted); max-width: 70ch}
.card{
  border-radius: var(--radius);
  background:white;
  border:1px solid var(--line);
  box-shadow: var(--shadow2);
}
.grid4{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap:14px;
}
.metric-card{padding:18px}
.metric-top{display:flex; align-items:center; justify-content:space-between; gap:12px}
.chem{
  width:44px;height:44px;border-radius:999px;
  border:1px solid var(--line);
  background: linear-gradient(135deg, #ffffff, var(--silver2));
  display:grid; place-items:center;
  font-weight:900;
  color:#3b4656;
}
.metric-title{font-weight:900; font-size:16px; margin:0}
.metric-mg{font-weight:900; font-size:18px; color:#2a3442}
.metric-mg small{font-weight:800; color:var(--muted)}
.bullets{margin:14px 0 0; padding:0; list-style:none; color:#415061}
.bullets li{display:flex; gap:10px; padding:7px 0; font-weight:600; font-size:13.5px}
.tick{
  width:18px;height:18px;border-radius:6px;
  background: rgba(183,224,0,.18);
  border:1px solid rgba(183,224,0,.35);
  display:grid; place-items:center;
  flex: 0 0 18px;
}
.tick svg{width:12px;height:12px}

.note{
  margin-top:14px;
  padding:14px 16px;
  border-radius: 16px;
  background: rgba(183,224,0,.10);
  border:1px solid rgba(183,224,0,.25);
  color:#344152;
  font-weight:650;
}

.table-wrap{overflow:auto}
.compare{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  min-width: 640px;
}
.compare th, .compare td{
  padding:16px 14px;
  text-align:center;
  border-bottom:1px solid var(--line);
  font-weight:700;
}
.compare thead th{
  position:sticky; top:0;
  background: #fff;
  z-index:1;
}
.compare th:first-child, .compare td:first-child{
  text-align:left;
  padding-left:18px;
}
.compare tr:last-child td{border-bottom:none}
.hl{
  background: rgba(183,224,0,.12);
}
.hl strong{color:#1b2500}
.bad{
  color:#9b1c1c;
}
.legend{
  margin-top:12px;
  color:var(--muted);
  font-size:13px;
  display:flex;
  gap:18px;
  flex-wrap:wrap;
}
.legend span{display:flex; align-items:center; gap:8px}
.swatch{width:14px;height:14px;border-radius:5px;border:1px solid var(--line); background:#fff}
.swatch.hl{background: rgba(183,224,0,.12); border-color: rgba(183,224,0,.25)}

.steps{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap:14px;
}
.step{padding:18px}
.step .n{
  width:36px;height:36px;border-radius:12px;
  background: linear-gradient(135deg, var(--silver), white);
  border:1px solid var(--line);
  display:grid; place-items:center;
  font-weight:900;
  margin-bottom:10px;
}
.step h3{margin:0 0 6px; font-size:15px}
.step p{margin:0; color:var(--muted); font-weight:650; font-size:13.5px}
.inline-cta{
  margin-top:18px;
  display:flex; gap:12px; flex-wrap:wrap; align-items:center;
}

.footer{
  padding:26px 0 38px;
  color:var(--muted);
  font-size:13px;
}
.footer hr{
  border:none;
  border-top:1px solid var(--line);
  margin:0 0 18px;
}

.whatsapp-fab{
  position:fixed;
  right:18px; bottom:18px;
  width:56px; height:56px;
  border-radius:999px;
  background: linear-gradient(135deg, var(--lime), var(--lime2));
  box-shadow: 0 14px 30px rgba(14,20,32,.18);
  border:1px solid rgba(0,0,0,.06);
  display:grid; place-items:center;
  z-index:99;
}
.whatsapp-fab svg{width:26px;height:26px}

@media (max-width: 980px){
  .hero-grid{grid-template-columns:1fr}
  .hero-media{min-height: 360px}
  .grid4{grid-template-columns: repeat(2, 1fr)}
  .steps{grid-template-columns: repeat(2, 1fr)}
  .navlinks{display:none}
}
@media (max-width: 520px){
  .hero-copy{padding:26px}
  .grid4{grid-template-columns: 1fr}
  .steps{grid-template-columns: 1fr}
}