/* ============================================================
   BOSOL · KITS WEB · Hoja de estilos corporativa compartida
   Tema claro · fondo blanco · azul marino + dorado/naranja
   Compartida por las 5 tarjetas y el catálogo. Edita aquí una
   sola vez y cambia el diseño de todo el módulo.
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400..900;1,9..144,400..900&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Space+Mono:wght@400;700&display=swap');

:root{
  --navy:#0E1C2F;        /* azul marino base (texto/titulos) */
  --navy2:#16304D;       /* azul marino medio */
  --navy3:#1E3A5F;
  --sol:#F5A623;         /* dorado/naranja acento principal */
  --sol2:#E0890B;        /* dorado oscuro (texto/hover sobre blanco) */
  --tq:#16A39A;          /* turquesa legible sobre blanco */
  --tq-soft:#E6F7F5;
  --sol-soft:#FFF4E0;
  --bg:#FFFFFF;
  --bg2:#F4F7FA;         /* secciones suaves */
  --line:#E2E8F0;
  --ink:#1B2735;         /* cuerpo de texto */
  --muted:#64748B;
  --ok:#1FA463;          /* verde whatsapp/confirmacion */
  --ff-display:'Fraunces',Georgia,serif;
  --ff-body:'Plus Jakarta Sans',system-ui,sans-serif;
  --ff-mono:'Space Mono',ui-monospace,monospace;
  --shadow-sm:0 4px 14px -6px rgba(14,28,47,.18);
  --shadow:0 18px 50px -18px rgba(14,28,47,.28);
  --shadow-lg:0 35px 80px -25px rgba(14,28,47,.4);
  --radius:18px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--ink);
  font-family:var(--ff-body);line-height:1.55;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.container{max-width:1240px;margin:0 auto;padding:0 1.5rem}

/* ---------- NAV / HEADER ---------- */
.kits-nav{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line);
}
.kits-nav-inner{display:flex;align-items:center;justify-content:space-between;
  height:74px;max-width:1240px;margin:0 auto;padding:0 1.5rem;gap:1rem}
.kits-brand{display:flex;align-items:center;gap:.7rem}
.kits-brand img{height:46px;width:auto}
.kits-brand-txt{display:flex;flex-direction:column;line-height:1}
.kits-brand-txt b{font-family:var(--ff-display);font-weight:900;color:var(--navy);font-size:1.15rem;letter-spacing:-.5px}
.kits-brand-txt span{font-family:var(--ff-mono);font-size:.55rem;letter-spacing:3px;text-transform:uppercase;color:var(--tq);font-weight:700;margin-top:2px}
.kits-nav a.back{font-family:var(--ff-mono);font-size:.7rem;letter-spacing:1.5px;text-transform:uppercase;
  color:var(--muted);display:inline-flex;align-items:center;gap:7px;transition:color .2s}
.kits-nav a.back:hover{color:var(--navy)}

/* ---------- HERO DE SECCIÓN ---------- */
.kits-hero{background:linear-gradient(160deg,var(--navy) 0%,var(--navy2) 100%);
  color:#fff;padding:4.5rem 0 5.5rem;position:relative;overflow:hidden}
.kits-hero::after{content:'';position:absolute;right:-120px;top:-120px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(245,166,35,.22),transparent 70%);pointer-events:none}
.kits-hero::before{content:'';position:absolute;left:-100px;bottom:-140px;width:380px;height:380px;
  background:radial-gradient(circle,rgba(22,163,154,.18),transparent 70%);pointer-events:none}
.kits-eyebrow{display:inline-flex;align-items:center;gap:9px;font-family:var(--ff-mono);
  font-size:.62rem;letter-spacing:3px;text-transform:uppercase;color:var(--sol);
  border:1px solid rgba(245,166,35,.35);background:rgba(245,166,35,.1);
  padding:.4rem 1rem;border-radius:100px;margin-bottom:1.4rem}
.kits-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--sol);box-shadow:0 0 8px var(--sol)}
.kits-hero h1{font-family:var(--ff-display);font-weight:900;font-size:clamp(2.2rem,5vw,3.7rem);
  line-height:1.02;letter-spacing:-1.5px;max-width:18ch;margin-bottom:1.1rem}
.kits-hero h1 em{color:var(--sol);font-style:italic}
.kits-hero p.lead{font-size:clamp(1rem,1.6vw,1.2rem);color:rgba(255,255,255,.8);max-width:58ch}
.kits-hero-meta{display:flex;flex-wrap:wrap;gap:1.6rem;margin-top:2rem}
.kits-hero-meta div{display:flex;flex-direction:column}
.kits-hero-meta b{font-family:var(--ff-display);font-size:1.5rem;font-weight:900;color:var(--sol)}
.kits-hero-meta span{font-family:var(--ff-mono);font-size:.58rem;letter-spacing:2px;text-transform:uppercase;color:rgba(255,255,255,.55)}

/* ---------- SECCIÓN GENÉRICA ---------- */
.sec{padding:4.5rem 0}
.sec.alt{background:var(--bg2)}
.sec-head{text-align:center;max-width:60ch;margin:0 auto 2.8rem}
.sec-label{font-family:var(--ff-mono);font-size:.62rem;letter-spacing:3px;text-transform:uppercase;
  color:var(--tq);display:inline-flex;align-items:center;gap:9px;margin-bottom:.9rem}
.sec-label::before,.sec-label::after{content:'';width:22px;height:1px;background:var(--tq)}
.sec-title{font-family:var(--ff-display);font-weight:900;font-size:clamp(1.8rem,3.6vw,2.8rem);
  line-height:1.06;letter-spacing:-1px;color:var(--navy)}
.sec-title em{color:var(--sol2);font-style:italic}
.sec-sub{color:var(--muted);margin-top:.8rem;font-size:1.02rem}

/* ============================================================
   TARJETA COTIZADOR
   ============================================================ */
.cotizador-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:2.5rem;align-items:start}
.kit-card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow)}

/* lado visual / info producto */
.kit-media{position:relative;background:linear-gradient(160deg,var(--navy) 0%,var(--navy3) 100%);
  color:#fff;padding:2.2rem 2.2rem 2.4rem;min-height:100%}
.kit-badge{display:inline-flex;align-items:center;gap:8px;font-family:var(--ff-mono);font-size:.6rem;
  letter-spacing:2px;text-transform:uppercase;background:var(--sol);color:var(--navy);
  font-weight:700;padding:.4rem .9rem;border-radius:100px;margin-bottom:1.3rem}
.kit-name{font-family:var(--ff-display);font-weight:900;font-size:clamp(1.6rem,3vw,2.2rem);
  line-height:1.04;letter-spacing:-.5px;margin-bottom:.5rem}
.kit-name em{color:var(--sol);font-style:italic}
.kit-model{font-family:var(--ff-mono);font-size:.72rem;letter-spacing:2px;text-transform:uppercase;color:var(--tq);margin-bottom:1.3rem}
.kit-desc{color:rgba(255,255,255,.78);font-size:.95rem;margin-bottom:1.6rem}
.kit-includes{list-style:none;display:flex;flex-direction:column;gap:.65rem;margin-bottom:1.6rem}
.kit-includes li{display:flex;align-items:flex-start;gap:.6rem;font-size:.9rem;color:rgba(255,255,255,.9)}
.kit-includes li svg{flex:0 0 auto;width:18px;height:18px;color:var(--tq);margin-top:2px}

/* ---- CARRUSEL DE IMÁGENES DEL KIT (cuadro fijo, no deforma la altura) ---- */
.kit-carrusel{position:relative;width:100%;height:360px;margin:1.4rem 0;border-radius:14px;overflow:hidden;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12)}
.kit-slides{position:absolute;inset:0}
.kit-slide{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:1rem;opacity:0;visibility:hidden;transition:opacity .4s ease}
.kit-slide.is-active{opacity:1;visibility:visible}
.kit-slide img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;border-radius:8px}
.kit-carrusel-empty{position:absolute;inset:0;display:none;align-items:center;justify-content:center;text-align:center;color:var(--muted);font-family:var(--ff-mono);font-size:.7rem;letter-spacing:1.5px;text-transform:uppercase;padding:1rem}
.kit-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:42px;height:42px;border-radius:50%;border:none;cursor:pointer;background:rgba(14,28,47,.72);color:#fff;font-size:1.2rem;line-height:1;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(4px);transition:background .2s,color .2s,transform .2s}
.kit-arrow:hover{background:var(--sol);color:var(--navy);transform:translateY(-50%) scale(1.08)}
.kit-arrow.prev{left:.7rem}
.kit-arrow.next{right:.7rem}
.kit-dots{position:absolute;bottom:.85rem;left:50%;transform:translateX(-50%);z-index:3;display:flex;gap:7px}
.kit-dot{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.4);border:none;cursor:pointer;padding:0;transition:background .2s,transform .2s}
.kit-dot.is-active{background:var(--sol);transform:scale(1.35)}
@media(max-width:560px){.kit-carrusel{height:260px}.kit-arrow{width:36px;height:36px;font-size:1.05rem}}

/* ---- RECUADRO: INSTALACIÓN PROFESIONAL ---- */
.install-box{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1.6rem;
  background:linear-gradient(135deg,var(--sol-soft) 0%,#fff 100%);border:1px solid rgba(245,166,35,.35);
  border-left:5px solid var(--sol);border-radius:20px;padding:2.2rem 2.4rem;box-shadow:var(--shadow-sm)}
.install-box-txt{flex:1;min-width:260px}
.install-box-tag{font-family:var(--ff-mono);font-size:.62rem;letter-spacing:3px;text-transform:uppercase;
  color:var(--sol2);display:inline-flex;align-items:center;gap:8px;margin-bottom:.7rem}
.install-box-tag span{width:7px;height:7px;border-radius:50%;background:var(--sol)}
.install-box h3{font-family:var(--ff-display);font-weight:900;font-size:clamp(1.4rem,2.6vw,2rem);
  color:var(--navy);line-height:1.1;letter-spacing:-.5px;margin-bottom:.5rem}
.install-box h3 em{color:var(--sol2);font-style:italic}
.install-box p{color:var(--muted);font-size:.95rem;max-width:54ch}
.install-box-btn{display:inline-flex;align-items:center;gap:11px;background:var(--navy);color:#fff;
  font-weight:800;font-size:1.02rem;padding:1.05rem 1.9rem;border-radius:100px;white-space:nowrap;
  box-shadow:0 14px 32px -10px rgba(14,28,47,.5);transition:transform .2s,box-shadow .2s,background .2s}
.install-box-btn:hover{background:var(--navy2);transform:translateY(-3px);box-shadow:0 20px 44px -12px rgba(14,28,47,.6)}
.install-box-btn svg{width:20px;height:20px}
@media(max-width:600px){.install-box{padding:1.8rem 1.5rem}.install-box-btn{width:100%;justify-content:center}}

/* lado configurador */
.kit-config{padding:2.2rem 2.2rem 2.4rem;display:flex;flex-direction:column}
.config-title{font-family:var(--ff-display);font-weight:800;font-size:1.25rem;color:var(--navy);margin-bottom:.3rem}
.config-sub{font-size:.85rem;color:var(--muted);margin-bottom:1.6rem}

.field{margin-bottom:1.4rem}
.field-label{display:flex;align-items:center;gap:8px;font-family:var(--ff-mono);font-size:.64rem;
  letter-spacing:1.5px;text-transform:uppercase;color:var(--navy);font-weight:700;margin-bottom:.55rem}
.field-label .req{color:var(--sol2)}
.field-hint{font-size:.74rem;color:var(--muted);margin-top:.4rem}

/* select desplegable (opciones excluyentes) */
.kit-select{width:100%;appearance:none;-webkit-appearance:none;background:var(--bg2);
  border:1.5px solid var(--line);border-radius:12px;padding:.85rem 2.6rem .85rem 1rem;
  font-family:var(--ff-body);font-size:.92rem;font-weight:600;color:var(--navy);cursor:pointer;
  transition:border-color .2s,box-shadow .2s;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%230E1C2F' stroke-width='3'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 1rem center}
.kit-select:focus{outline:none;border-color:var(--sol);box-shadow:0 0 0 4px rgba(245,166,35,.15)}

/* checkboxes (accesorios sumables / upsells) */
.addons{display:flex;flex-direction:column;gap:.7rem}
.addon{display:flex;align-items:center;gap:.9rem;border:1.5px solid var(--line);border-radius:12px;
  padding:.85rem 1rem;cursor:pointer;transition:all .18s;background:var(--bg)}
.addon:hover{border-color:var(--tq);background:var(--tq-soft)}
.addon input{appearance:none;-webkit-appearance:none;flex:0 0 auto;width:22px;height:22px;border:2px solid var(--line);
  border-radius:7px;cursor:pointer;position:relative;transition:all .18s;background:#fff}
.addon input:checked{background:var(--sol);border-color:var(--sol)}
.addon input:checked::after{content:'';position:absolute;left:6px;top:2px;width:6px;height:11px;
  border:solid var(--navy);border-width:0 3px 3px 0;transform:rotate(45deg)}
.addon-txt{flex:1;display:flex;flex-direction:column}
.addon-txt b{font-size:.9rem;font-weight:700;color:var(--navy);line-height:1.2}
.addon-txt small{font-size:.74rem;color:var(--muted)}
.addon-price{font-family:var(--ff-mono);font-weight:700;font-size:.84rem;color:var(--sol2);white-space:nowrap}
.addon:has(input:checked){border-color:var(--sol);background:var(--sol-soft)}

/* resumen total */
.total-box{margin-top:auto;padding-top:1.6rem;border-top:2px dashed var(--line)}
.total-row{display:flex;justify-content:space-between;align-items:center;font-size:.86rem;color:var(--muted);margin-bottom:.5rem}
.total-row.grand{margin-top:.9rem;align-items:baseline}
.total-row.grand .lbl{font-family:var(--ff-mono);font-size:.66rem;letter-spacing:2px;text-transform:uppercase;color:var(--navy);font-weight:700}
.total-amount{font-family:var(--ff-display);font-weight:900;font-size:clamp(2rem,4vw,2.7rem);
  color:var(--navy);line-height:1;letter-spacing:-1px}
.total-amount .cur{font-size:.9rem;color:var(--muted);font-family:var(--ff-mono);font-weight:700;margin-left:6px;letter-spacing:1px}

/* boton stripe */
.btn-comprar-stripe{display:flex;align-items:center;justify-content:center;gap:11px;width:100%;
  margin-top:1.5rem;background:linear-gradient(135deg,var(--sol) 0%,var(--sol2) 100%);
  color:var(--navy);font-family:var(--ff-body);font-weight:800;font-size:1.08rem;
  padding:1.15rem 1.5rem;border-radius:14px;border:none;cursor:pointer;text-align:center;
  box-shadow:0 14px 32px -10px rgba(245,166,35,.7);transition:transform .2s,box-shadow .2s;letter-spacing:.2px}
.btn-comprar-stripe:hover{transform:translateY(-3px);box-shadow:0 22px 46px -12px rgba(245,166,35,.85)}
.btn-comprar-stripe:active{transform:translateY(-1px)}
.btn-comprar-stripe svg{width:22px;height:22px}
.stripe-note{display:flex;align-items:center;justify-content:center;gap:7px;margin-top:.9rem;
  font-family:var(--ff-mono);font-size:.64rem;letter-spacing:.5px;color:var(--muted);text-align:center}
.stripe-note svg{width:14px;height:14px;color:var(--ok)}
.envio-note{display:flex;align-items:center;justify-content:center;gap:7px;margin-top:.5rem;
  font-family:var(--ff-mono);font-size:.64rem;letter-spacing:.4px;color:var(--muted);text-align:center}
.envio-note svg{width:16px;height:16px;color:var(--sol2);flex-shrink:0}
.envio-note b{color:var(--navy);font-weight:700}

/* ============================================================
   GRID DE CATÁLOGO (página raíz)
   ============================================================ */
.catalog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(280px,100%),1fr));gap:1.6rem}
.cat-card{display:flex;flex-direction:column;background:var(--bg);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s;color:inherit}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.cat-card-top{background:linear-gradient(160deg,var(--navy) 0%,var(--navy3) 100%);color:#fff;padding:1.6rem 1.5rem;position:relative}
.cat-num{position:absolute;top:1rem;right:1.2rem;font-family:var(--ff-display);font-weight:900;font-size:2.6rem;color:rgba(245,166,35,.22);line-height:1}
.cat-kicker{font-family:var(--ff-mono);font-size:.58rem;letter-spacing:2px;text-transform:uppercase;color:var(--sol);margin-bottom:.6rem}
.cat-name{font-family:var(--ff-display);font-weight:900;font-size:1.35rem;line-height:1.08;letter-spacing:-.5px;max-width:14ch}
.cat-body{padding:1.4rem 1.5rem;display:flex;flex-direction:column;gap:.9rem;flex:1}
.cat-model{font-family:var(--ff-mono);font-size:.66rem;letter-spacing:1.5px;text-transform:uppercase;color:var(--tq)}
.cat-desc{font-size:.88rem;color:var(--muted);flex:1}
.cat-from{display:flex;align-items:baseline;gap:7px}
.cat-from small{font-family:var(--ff-mono);font-size:.62rem;letter-spacing:1px;text-transform:uppercase;color:var(--muted)}
.cat-from b{font-family:var(--ff-display);font-weight:900;font-size:1.5rem;color:var(--navy)}
.cat-cta{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);
  padding:1rem 1.5rem;font-family:var(--ff-mono);font-size:.7rem;letter-spacing:1.5px;text-transform:uppercase;
  color:var(--sol2);font-weight:700}
.cat-cta svg{width:18px;height:18px;transition:transform .2s}
.cat-card:hover .cat-cta svg{transform:translateX(5px)}

/* ============================================================
   BANNER CORPORATIVO DE INGENIERÍA (filtro B2B)
   ============================================================ */
.eng-banner{background:linear-gradient(135deg,var(--navy) 0%,var(--navy2) 60%,#0a2540 100%);
  color:#fff;border-radius:24px;padding:3rem 2.6rem;position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.4fr auto;gap:2rem;align-items:center;box-shadow:var(--shadow-lg)}
.eng-banner::before{content:'';position:absolute;right:-60px;top:-60px;width:300px;height:300px;
  background:radial-gradient(circle,rgba(245,166,35,.2),transparent 70%);pointer-events:none}
.eng-banner-tag{font-family:var(--ff-mono);font-size:.62rem;letter-spacing:3px;text-transform:uppercase;
  color:var(--sol);display:inline-flex;align-items:center;gap:8px;margin-bottom:1rem}
.eng-banner h3{font-family:var(--ff-display);font-weight:900;font-size:clamp(1.5rem,2.8vw,2.1rem);
  line-height:1.1;letter-spacing:-.5px;margin-bottom:1rem;max-width:24ch}
.eng-banner h3 em{color:var(--sol);font-style:italic}
.eng-banner p{color:rgba(255,255,255,.8);font-size:.98rem;max-width:62ch}
.eng-banner-cta{display:flex;flex-direction:column;align-items:flex-start;gap:.8rem}
.btn-whatsapp{display:inline-flex;align-items:center;gap:11px;background:var(--ok);color:#fff;
  font-weight:800;font-size:1.02rem;padding:1.05rem 1.8rem;border-radius:100px;white-space:nowrap;
  box-shadow:0 14px 32px -10px rgba(31,164,99,.7);transition:transform .2s,box-shadow .2s}
.btn-whatsapp:hover{transform:translateY(-3px);box-shadow:0 22px 46px -12px rgba(31,164,99,.85)}
.btn-whatsapp svg{width:22px;height:22px}
.eng-banner-cta small{font-family:var(--ff-mono);font-size:.62rem;letter-spacing:1px;color:rgba(255,255,255,.5)}

/* ---------- FOOTER ---------- */
.kits-footer{background:var(--navy);color:rgba(255,255,255,.6);padding:2.5rem 0;text-align:center}
.kits-footer .container{display:flex;flex-direction:column;align-items:center;gap:.6rem}
.kits-footer img{height:40px;opacity:.9}
.kits-footer p{font-size:.82rem}
.kits-footer .mono{font-family:var(--ff-mono);font-size:.62rem;letter-spacing:1.5px;text-transform:uppercase;color:rgba(255,255,255,.35)}

/* ---------- WhatsApp flotante ---------- */
.wa-float{position:fixed;right:1.4rem;bottom:1.4rem;z-index:60;width:60px;height:60px;border-radius:50%;
  background:var(--ok);display:flex;align-items:center;justify-content:center;box-shadow:0 10px 30px -6px rgba(31,164,99,.6);
  transition:transform .2s}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:32px;height:32px;color:#fff}

/* ---------- NOTA DE RANGO (dato de profundidad) ---------- */
.kit-range-note{
  display:inline-flex;align-items:center;gap:.55rem;
  margin:1rem 0 .2rem;
  padding:.5rem .95rem;
  background:var(--sol-soft,rgba(245,166,35,.12));
  border:1px solid rgba(245,166,35,.35);
  border-radius:100px;
  font-family:var(--ff-body);font-size:.85rem;color:var(--navy);
}
.kit-range-note svg{width:16px;height:16px;color:var(--sol2,#E0890B);flex-shrink:0}
.kit-range-note b{font-weight:800}

/* ---------- HERO BANNER (imagen full-width) ---------- */
.kits-hero-banner{
  position:relative;
  width:100%;
  min-height:40vh;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  overflow:hidden;
  /* Foto de fondo (chorro de agua). Reemplaza la ruta por tu imagen: */
  background-image:url('chorro-agua.jpeg');
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
}
.kits-hero-banner-overlay{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,28,47,.55) 0%,rgba(14,28,47,.72) 100%);
}
.kits-hero-banner-content{
  position:relative;z-index:2;
  padding:2rem 1.4rem;
  max-width:820px;
}
.kits-hero-banner-content h2{
  font-family:var(--ff-display);font-weight:900;
  font-size:clamp(1.8rem,4.6vw,3.4rem);
  line-height:1.08;letter-spacing:-1px;
  color:#fff;
  text-shadow:0 4px 24px rgba(0,0,0,.35);
  margin:0 0 .7rem;
}
.kits-hero-banner-content p{
  font-family:var(--ff-body);font-weight:500;
  font-size:clamp(1rem,2vw,1.3rem);
  color:rgba(255,255,255,.92);
  text-shadow:0 2px 12px rgba(0,0,0,.35);
  margin:0;
}

/* ---------- RESPONSIVO ---------- */
/* Tablets grandes / laptops chicas: el cotizador y banners pasan a 1 columna */
@media(max-width:900px){
  .cotizador-grid{grid-template-columns:1fr}
  .eng-banner{grid-template-columns:1fr;text-align:left}
  .eng-banner-cta{align-items:stretch}
}
/* Tablets / móviles grandes: botones a todo el ancho para mejor toque */
@media(max-width:768px){
  .kits-hero{padding:3.5rem 0 4rem}
  .kits-hero-meta{gap:1.2rem 1.6rem}
  .btn-whatsapp,.install-box-btn{width:100%;justify-content:center}
}
/* Celulares */
@media(max-width:560px){
  .sec{padding:3.2rem 0}
  .kits-hero{padding:3rem 0 3.2rem}
  .kits-hero-banner{min-height:34vh}
  .kits-hero-banner-content{padding:1.5rem 1.1rem}
  .kit-media,.kit-config{padding:1.6rem 1.4rem}
  .eng-banner{padding:2.2rem 1.5rem}
  .kits-brand-txt b{font-size:1rem}
  .total-row.grand{flex-wrap:wrap;gap:.3rem .6rem}
  .kit-range-note{font-size:.8rem}
}
/* Celulares pequeños (≤400px): compacta nav, márgenes y botón flotante */
@media(max-width:400px){
  .container{padding:0 1.1rem}
  .kits-nav-inner{padding:0 1.1rem;height:64px}
  .kits-brand img{height:38px}
  .kits-brand-txt b{font-size:.95rem}
  .kits-brand-txt span{font-size:.5rem;letter-spacing:2px}
  .kits-nav a.back{font-size:.6rem}
  .btn-comprar-stripe{font-size:1rem;padding:1rem}
  .wa-float{width:52px;height:52px;right:1rem;bottom:1rem}
  .wa-float svg{width:28px;height:28px}
}