:root {
  --acento: #0f766e;
  --acento-osc: #115e59;
  --acento-claro: #ccfbf1;
  --amazon: #f59e0b;
  --amazon-osc: #d97706;
  --texto: #1f2937;
  --suave: #6b7280;
  --borde: #e5e7eb;
  --fondo: #ffffff;
  --fondo-alt: #f6f7f5;
  --verde: #15803d;
  --rojo: #b91c1c;
  --radio: 12px;
  --ancho: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: 17px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--texto);
  background: var(--fondo);
  -webkit-text-size-adjust: 100%;
}
a { color: var(--acento); }
a:hover { color: var(--acento-osc); }
img, svg { max-width: 100%; }
h1, h2, h3 { line-height: 1.25; letter-spacing: -0.01em; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

.contenedor { max-width: var(--ancho); margin: 0 auto; padding: 0 20px; }
.estrecho { max-width: 760px; }

/* Cabecera */
.cabecera { border-bottom: 1px solid var(--borde); background: var(--fondo); position: sticky; top: 0; z-index: 10; }
.cabecera-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.logo { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; color: var(--texto); font-size: 20px; }
.logo b { color: var(--acento); }
.menu { display: flex; gap: 4px; flex-wrap: wrap; }
.menu a { text-decoration: none; color: var(--texto); padding: 6px 12px; border-radius: 999px; font-size: 15px; }
.menu a:hover { background: var(--fondo-alt); color: var(--acento); }

/* Portada */
.portada { background: linear-gradient(180deg, var(--acento-claro), var(--fondo)); padding: 56px 0 40px; }
.portada-in { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center; }
.portada h1 { font-size: clamp(30px, 4.5vw, 46px); margin: 0 0 16px; }
.portada h1 em { font-style: normal; color: var(--acento); }
.portada p { font-size: 19px; color: #374151; max-width: 560px; }
.portada-cats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.portada-cats a { display: flex; align-items: center; gap: 10px; background: #fff; border: 1px solid var(--borde); border-radius: var(--radio); padding: 16px; text-decoration: none; color: var(--texto); font-weight: 600; transition: transform .15s, box-shadow .15s; }
.portada-cats a:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(0,0,0,.06); }
.portada-cats a:last-child:nth-child(odd) { grid-column: span 2; }
.icono { width: 26px; height: 26px; color: var(--acento); flex-shrink: 0; }
.icono-grande { width: 48px; height: 48px; }

.btn { display: inline-block; background: var(--acento); color: #fff; text-decoration: none; padding: 12px 22px; border-radius: 999px; font-weight: 600; }
.btn:hover { background: var(--acento-osc); color: #fff; }

.titulo-seccion { font-size: 26px; margin: 48px 0 20px; }

/* Tarjetas */
.rejilla { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.tarjeta { display: flex; flex-direction: column; gap: 6px; padding: 22px; border: 1px solid var(--borde); border-radius: var(--radio); text-decoration: none; color: var(--texto); background: #fff; transition: transform .15s, box-shadow .15s; }
.tarjeta:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(0,0,0,.07); color: var(--texto); }
.tarjeta h3 { margin: 4px 0; font-size: 20px; }
.tarjeta p { margin: 0; color: var(--suave); font-size: 15.5px; flex: 1; }
.tarjeta-cat { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--acento); }
.tarjeta-cat .icono { width: 18px; height: 18px; }
.leer { color: var(--acento); font-weight: 600; font-size: 15px; margin-top: 8px; }

.confianza { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 56px; margin-bottom: 56px; }
.confianza div { background: var(--fondo-alt); border-radius: var(--radio); padding: 22px; }
.confianza h3 { margin: 0 0 6px; font-size: 18px; }
.confianza p { margin: 0; color: #4b5563; font-size: 15.5px; }

/* Categoría */
.cabecera-cat { display: flex; gap: 18px; align-items: center; margin: 8px 0 28px; }
.cabecera-cat h1 { margin: 0; }
.cabecera-cat p { margin: 4px 0 0; color: var(--suave); }

/* Migas */
.migas { font-size: 14px; color: var(--suave); margin: 24px 0 8px; }
.migas a { color: var(--suave); text-decoration: none; }
.migas a:hover { color: var(--acento); }
.migas .sep { margin: 0 4px; opacity: .6; }

/* Artículo */
.articulo-grid { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 48px; }
.articulo { max-width: 760px; }
.articulo h1 { font-size: clamp(28px, 4vw, 40px); margin: 8px 0 8px; }
.meta { color: var(--suave); font-size: 14.5px; margin: 0 0 12px; }
.aviso-afiliado { font-size: 13.5px; color: var(--suave); background: var(--fondo-alt); border-radius: 8px; padding: 8px 12px; }
.entradilla { font-size: 19px; color: #374151; }
.cuerpo h2 { font-size: 27px; margin: 44px 0 12px; scroll-margin-top: 80px; }
.cuerpo h3 { font-size: 21px; margin: 28px 0 8px; }
.cuerpo li { margin: 4px 0; }
.lateral { padding-top: 64px; }
.indice { position: sticky; top: 88px; border-left: 3px solid var(--acento-claro); padding: 4px 0 4px 16px; font-size: 14.5px; }
.indice ol { padding-left: 18px; margin: 8px 0 0; }
.indice li { margin: 6px 0; }
.indice a { color: #4b5563; text-decoration: none; }
.indice a:hover { color: var(--acento); }
.indice-movil { display: none; position: static; background: var(--fondo-alt); border-radius: var(--radio); border: 0; padding: 16px 20px; margin: 20px 0; }

/* Nota */
.nota { border-radius: var(--radio); padding: 14px 18px; margin: 20px 0; font-size: 16px; }
.nota-consejo { background: #ecfdf5; border-left: 4px solid var(--verde); }
.nota-atencion { background: #fffbeb; border-left: 4px solid var(--amazon); }

/* Tabla comparativa */
.tabla-wrap { overflow-x: auto; margin: 20px 0; border: 1px solid var(--borde); border-radius: var(--radio); }
.comparativa { width: 100%; border-collapse: collapse; font-size: 15.5px; }
.comparativa th { background: var(--fondo-alt); text-align: left; font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--suave); }
.comparativa th, .comparativa td { padding: 12px 14px; border-bottom: 1px solid var(--borde); vertical-align: middle; }
.comparativa tr:last-child td { border-bottom: 0; }
.comparativa td a:not(.btn-amazon) { font-weight: 600; text-decoration: none; }
.comparativa small { color: var(--acento); font-weight: 600; }
.comparativa .c { text-align: center; white-space: nowrap; }
.comparativa .btn-amazon { padding: 6px 14px; font-size: 14px; margin: 0; }

/* Ficha de producto */
.producto { position: relative; border: 1px solid var(--borde); border-radius: var(--radio); padding: 24px; margin: 28px 0; background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,.03); scroll-margin-top: 80px; }
.producto header { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.producto h3 { margin: 0; font-size: 22px; }
.etiqueta { display: inline-block; background: var(--acento); color: #fff; font-size: 12.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; padding: 4px 10px; border-radius: 999px; margin-bottom: 10px; }
.gama { font-weight: 700; color: var(--acento); letter-spacing: 1px; white-space: nowrap; }
.ideal { margin: 8px 0; }
.specs { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; margin: 16px 0; }
.specs div { background: var(--fondo-alt); border-radius: 8px; padding: 8px 12px; }
.specs dt { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--suave); }
.specs dd { margin: 0; font-weight: 600; font-size: 15px; }
.proscontras { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.proscontras ul { list-style: none; padding: 0; margin: 0; font-size: 15.5px; }
.proscontras li { padding-left: 26px; position: relative; margin: 6px 0; }
.pros li::before { content: "✓"; position: absolute; left: 4px; color: var(--verde); font-weight: 700; }
.contras li::before { content: "✕"; position: absolute; left: 4px; color: var(--rojo); font-weight: 700; }
.btn-amazon { display: inline-block; background: var(--amazon); color: #111; text-decoration: none; font-weight: 700; padding: 11px 22px; border-radius: 999px; margin-top: 18px; }
.btn-amazon:hover { background: var(--amazon-osc); color: #111; }

/* FAQ */
.faq { margin-top: 44px; }
.faq h2 { font-size: 27px; scroll-margin-top: 80px; }
.faq details { border: 1px solid var(--borde); border-radius: 10px; padding: 12px 16px; margin: 10px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { margin: 10px 0 0; }

.relacionados { margin-top: 56px; margin-bottom: 56px; }
.relacionados h2 { font-size: 24px; }

.pagina-fija { padding-bottom: 56px; }
.pagina-fija h1 { margin-top: 32px; }

/* Pie */
.pie { background: #111827; color: #d1d5db; padding: 44px 0 24px; font-size: 15px; }
.pie a { color: #d1d5db; text-decoration: none; display: block; margin: 4px 0; }
.pie a:hover { color: #fff; }
.pie .logo { color: #fff; display: inline-flex; }
.pie h4 { color: #fff; margin: 0 0 8px; font-size: 15px; }
.pie-cols { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 28px; }
.divulgacion-pie { border-top: 1px solid #374151; margin-top: 28px; padding-top: 18px; font-size: 13.5px; color: #9ca3af; }
.copy { font-size: 13px; color: #6b7280; }

@media (max-width: 900px) {
  .portada-in, .articulo-grid { grid-template-columns: 1fr; }
  .lateral { display: none; }
  .indice-movil { display: block; }
  .confianza { grid-template-columns: 1fr; }
  .pie-cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  body { font-size: 16.5px; }
  .contenedor { padding: 0 16px; }
  .menu { width: 100%; overflow-x: auto; flex-wrap: nowrap; padding-bottom: 8px; }
  .menu a { white-space: nowrap; background: var(--fondo-alt); }
  .cabecera { position: static; }
  .proscontras { grid-template-columns: 1fr; }
  .portada { padding-top: 32px; }
  .producto { padding: 18px; }
}