/* ====== Paleta Quantix (tomada del logo) ====== */
:root {
  --navy: #0f2a44;
  --navy-2: #173c5e;
  --navy-3: #0a1d30;
  --teal: #1e9db5;
  --teal-claro: #5cc6d6;
  --teal-suave: #e6f5f8;
  --texto: #1f2d3a;
  --gris: #5f6f7e;
  --borde: #dfe8ee;
  --fondo-gris: #f3f7f9;
  --wa: #25d366;
  --wa-oscuro: #1da851;
  --radio: 18px;
  --sombra: 0 14px 40px rgba(15, 42, 68, .10);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { font-family: 'Montserrat', 'Segoe UI', Arial, sans-serif; color: var(--texto); line-height: 1.6; background: #fff; }
img { max-width: 100%; display: block; }
[hidden] { display: none !important; }
a { color: inherit; text-decoration: none; }

.contenedor { width: min(1200px, 100% - 40px); margin: 0 auto; }
.contenedor--angosto { width: min(820px, 100% - 40px); }

.ico { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }

/* ====== Botones ====== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font: inherit; font-weight: 700; font-size: .95rem;
  padding: 14px 24px; border-radius: 12px; border: 2px solid transparent;
  cursor: pointer; transition: transform .2s, box-shadow .2s, background .2s, color .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn--chico { padding: 9px 16px; font-size: .88rem; }
.btn--ancho { width: 100%; }
.btn--wa { background: var(--wa); color: #fff; box-shadow: 0 8px 22px rgba(37, 211, 102, .35); }
.btn--wa:hover { background: var(--wa-oscuro); }
.btn--primario { background: linear-gradient(135deg, var(--teal), var(--navy-2)); color: #fff; box-shadow: 0 8px 22px rgba(30, 157, 181, .3); }
.btn--borde { border-color: rgba(255, 255, 255, .4); color: #fff; }
.btn--borde:hover { background: rgba(255, 255, 255, .1); border-color: #fff; }
.btn--blanco { background: #fff; color: var(--navy); }

/* ====== Etiquetas y encabezados ====== */
.etiqueta {
  display: inline-block; font-size: .75rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  color: var(--teal); background: var(--teal-suave); padding: 6px 14px; border-radius: 30px; margin-bottom: 16px;
}
.etiqueta--clara { color: var(--teal-claro); background: rgba(92, 198, 214, .12); border: 1px solid rgba(92, 198, 214, .3); }

.seccion { padding: 100px 0; }
.seccion--gris { background: var(--fondo-gris); }
.encabezado { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.encabezado h2, .seccion h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); line-height: 1.2; color: var(--navy); font-weight: 800; }
.encabezado p { color: var(--gris); margin-top: 14px; font-size: 1.05rem; }

/* ====== Navegación ====== */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; transition: background .3s, box-shadow .3s; }
.nav--solida { background: rgba(10, 29, 48, .92); backdrop-filter: blur(12px); box-shadow: 0 6px 24px rgba(0, 0, 0, .2); }
.nav__fila { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.nav__marca { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 1.15rem; }
.nav__marca img { width: 44px; height: 44px; background: #fff; border-radius: 12px; padding: 3px; }
.nav__marca strong { color: var(--teal-claro); }
.nav__menu { display: flex; align-items: center; gap: 28px; }
.nav__menu a:not(.btn) { color: rgba(255, 255, 255, .85); font-weight: 600; font-size: .92rem; position: relative; }
.nav__menu a:not(.btn)::after { content: ''; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px; background: var(--teal-claro); transition: width .25s; }
.nav__menu a:not(.btn):hover { color: #fff; }
.nav__menu a:not(.btn):hover::after { width: 100%; }
.nav__hamburguesa { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav__hamburguesa span { display: block; width: 26px; height: 2.5px; background: #fff; margin: 5px 0; border-radius: 2px; transition: transform .3s, opacity .3s; }
.nav__hamburguesa[aria-expanded="true"] span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav__hamburguesa[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__hamburguesa[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ====== Hero ====== */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background: radial-gradient(circle at 85% 20%, rgba(30, 157, 181, .35), transparent 45%),
              linear-gradient(135deg, var(--navy-3), var(--navy) 50%, var(--navy-2));
  padding: 150px 0 110px;
}
.hero__malla {
  position: absolute; inset: 0; opacity: .12;
  background-image: linear-gradient(rgba(255,255,255,.4) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.4) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 30% 40%, #000, transparent 70%);
}
.hero__fila { position: relative; display: grid; grid-template-columns: 1.05fr 1fr; gap: 60px; align-items: center; }
.hero h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); line-height: 1.12; font-weight: 800; margin-bottom: 22px; }
.resaltado { background: linear-gradient(90deg, var(--teal-claro), #8fe3ee); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__texto > p { font-size: 1.1rem; color: rgba(255, 255, 255, .8); max-width: 560px; }
.hero__texto strong { color: #fff; }
.hero__acciones { display: flex; gap: 14px; flex-wrap: wrap; margin: 34px 0 30px; }
.hero__puntos { list-style: none; display: flex; flex-wrap: wrap; gap: 10px 24px; font-size: .9rem; color: rgba(255, 255, 255, .85); }
.hero__puntos li { display: flex; align-items: center; gap: 7px; }
.hero__puntos .ico { color: var(--teal-claro); width: 18px; height: 18px; stroke-width: 3; }

.hero__imagen { position: relative; }
.hero__marco {
  border-radius: 24px; overflow: hidden; border: 1px solid rgba(255, 255, 255, .15);
  box-shadow: 0 30px 70px rgba(0, 0, 0, .45); transform: perspective(1200px) rotateY(-6deg);
}
.flotante {
  position: absolute; display: flex; align-items: center; gap: 8px;
  background: #fff; color: var(--navy); font-weight: 700; font-size: .86rem;
  padding: 11px 16px; border-radius: 14px; box-shadow: 0 14px 30px rgba(0, 0, 0, .25);
  animation: flotar 5s ease-in-out infinite;
}
.flotante .ico { color: var(--teal); }
.flotante--1 { top: 8%; left: -28px; }
.flotante--2 { bottom: 22%; right: -22px; animation-delay: -1.7s; }
.flotante--3 { bottom: -18px; left: 16%; animation-delay: -3.3s; }
@keyframes flotar { 50% { transform: translateY(-10px); } }

/* ====== Pilares ====== */
.pilares { margin-top: -56px; position: relative; z-index: 2; }
.pilares__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.pilar { background: #fff; border-radius: var(--radio); padding: 28px 24px; box-shadow: var(--sombra); border-top: 4px solid var(--teal); }
.pilar__ico { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; background: var(--teal-suave); color: var(--teal); margin-bottom: 16px; }
.pilar__ico .ico { width: 26px; height: 26px; }
.pilar h3 { color: var(--navy); font-size: 1.1rem; margin-bottom: 6px; }
.pilar p { color: var(--gris); font-size: .9rem; }

/* ====== Sistemas ====== */
.sistemas { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.sistema {
  position: relative; background: #fff; border: 1px solid var(--borde); border-radius: var(--radio);
  padding: 28px 24px; display: flex; flex-direction: column; transition: transform .3s, box-shadow .3s, border-color .3s;
}
.sistema:hover { transform: translateY(-6px); box-shadow: var(--sombra); border-color: var(--teal-claro); }
.sistema--destacado { background: linear-gradient(160deg, var(--navy), var(--navy-2)); color: #fff; border: none; }
.sistema.sistema--destacado > p, .sistema--destacado .lista-check li { color: rgba(255, 255, 255, .85); }
.sistema--destacado h3 { color: #fff !important; }
.sistema__cinta { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); white-space: nowrap; background: var(--teal); color: #fff; font-size: .7rem; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; padding: 5px 14px; border-radius: 20px; box-shadow: 0 6px 14px rgba(30, 157, 181, .4); }
.sistema__cabeza { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.sistema__ico { width: 54px; height: 54px; border-radius: 15px; display: grid; place-items: center; background: linear-gradient(135deg, var(--teal), var(--navy-2)); color: #fff; flex-shrink: 0; }
.sistema__ico .ico { width: 27px; height: 27px; }
.sistema h3 { font-size: 1.25rem; color: var(--navy); line-height: 1.2; }
.sistema__cabeza span { font-size: .8rem; color: var(--teal); font-weight: 600; }
.sistema--destacado .sistema__cabeza span { color: var(--teal-claro); }
.sistema > p { color: var(--gris); font-size: .92rem; margin-bottom: 16px; }
.sistema__pie { margin-top: auto; padding-top: 18px; display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font-size: .72rem; font-weight: 600; background: var(--teal-suave); color: var(--navy-2); padding: 4px 10px; border-radius: 20px; }
.sistema--destacado .chip { background: rgba(255, 255, 255, .12); color: #fff; }

.lista-check { list-style: none; display: grid; gap: 9px; }
.lista-check li { position: relative; padding-left: 26px; font-size: .88rem; color: var(--texto); line-height: 1.45; }
.lista-check li::before {
  content: ''; position: absolute; left: 0; top: 2px; width: 17px; height: 17px; border-radius: 50%;
  background: var(--teal) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center / 10px no-repeat;
}
.lista-check--clara li { color: rgba(255, 255, 255, .9); }

.medida {
  margin-top: 36px; display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
  background: var(--teal-suave); border: 1.5px dashed var(--teal-claro); border-radius: var(--radio); padding: 28px 32px;
}
.medida > div:nth-child(2) { flex: 1; min-width: 260px; }
.medida h3 { color: var(--navy); font-size: 1.2rem; }
.medida p { color: var(--gris); }
.medida__ico { width: 60px; height: 60px; border-radius: 50%; display: grid; place-items: center; background: #fff; color: var(--teal); box-shadow: var(--sombra); }
.medida__ico .ico { width: 28px; height: 28px; }

/* ====== Galería ====== */
.galeria { background: linear-gradient(135deg, var(--navy-3), var(--navy)); padding: 90px 0; color: #fff; }
.galeria__grid { display: grid; grid-template-columns: 1fr 1.1fr 1fr; gap: 36px; align-items: center; }
.galeria figure { border-radius: 20px; overflow: hidden; box-shadow: 0 24px 60px rgba(0, 0, 0, .45); }
.galeria figure:first-child { transform: rotate(-3deg); }
.galeria figure:last-child { transform: rotate(3deg); }
.galeria__texto { text-align: center; }
.galeria__texto h2 { color: #fff; margin-bottom: 16px; }
.galeria__texto p { color: rgba(255, 255, 255, .78); margin-bottom: 28px; }

/* ====== Equipo ====== */
.productos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.producto { background: #fff; border-radius: var(--radio); padding: 20px 20px 26px; box-shadow: 0 6px 20px rgba(15, 42, 68, .06); transition: transform .3s, box-shadow .3s; }
.producto:hover { transform: translateY(-6px); box-shadow: var(--sombra); }
.producto__img { height: 220px; border-radius: 14px; background: #eef1f3; display: flex; overflow: hidden; margin-bottom: 18px; padding: 10px; }
.producto__img img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; transition: transform .4s; }
.producto:hover .producto__img img { transform: scale(1.05); }
.producto h3 { color: var(--navy); font-size: 1.15rem; margin-bottom: 6px; }
.producto p { color: var(--gris); font-size: .9rem; }
.miniaturas { display: flex; gap: 8px; margin-top: 14px; }
.miniaturas button { width: 46px; height: 46px; border-radius: 10px; border: 2px solid var(--borde); background: #eef1f3; padding: 3px; cursor: pointer; transition: border-color .2s; }
.miniaturas button img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.miniaturas button.activa { border-color: var(--teal); }
.producto--kit {
  background: linear-gradient(160deg, var(--teal), var(--navy-2) 60%, var(--navy)); color: #fff;
  display: flex; flex-direction: column; justify-content: center; padding: 34px 30px;
}
.producto--kit h3 { color: #fff; font-size: 1.45rem; }
.producto--kit p { color: rgba(255, 255, 255, .85); margin-bottom: 18px; }
.producto--kit .btn { margin-top: 24px; align-self: flex-start; }
.producto--kit .lista-check li::before { background-color: rgba(255, 255, 255, .25); }
.producto__kit-etq { align-self: flex-start; font-size: .72rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; background: rgba(255, 255, 255, .15); padding: 5px 12px; border-radius: 20px; margin-bottom: 14px; }

/* ====== Integración ====== */
.integracion { background: radial-gradient(circle at 80% 50%, rgba(30, 157, 181, .25), transparent 50%), var(--navy-3); color: #fff; }
.integracion h2 { color: #fff !important; margin-bottom: 16px; }
.integracion__fila { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.integracion__texto > p { color: rgba(255, 255, 255, .78); }
.pasos { list-style: none; margin-top: 30px; display: grid; gap: 18px; }
.pasos li { display: flex; gap: 16px; align-items: flex-start; color: rgba(255, 255, 255, .78); font-size: .93rem; }
.pasos li > span { flex-shrink: 0; width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; font-weight: 800; background: linear-gradient(135deg, var(--teal), var(--navy-2)); color: #fff; }
.pasos strong { display: block; color: #fff; font-size: 1rem; }

.hub { position: relative; width: min(440px, 100%); aspect-ratio: 1; margin: 0 auto; }
.hub__lineas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hub__lineas circle { fill: none; stroke: rgba(92, 198, 214, .25); stroke-width: 1.5; stroke-dasharray: 4 6; }
.hub__lineas line { stroke: var(--teal-claro); stroke-width: 2; stroke-dasharray: 6 8; opacity: .6; animation: flujo 1.4s linear infinite; }
@keyframes flujo { to { stroke-dashoffset: -28; } }
.hub__centro {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 34%; aspect-ratio: 1; border-radius: 50%; background: #fff; color: var(--navy);
  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
  box-shadow: 0 0 0 10px rgba(92, 198, 214, .15), 0 0 60px rgba(92, 198, 214, .45);
}
.hub__centro img { width: 52%; }
.hub__centro strong { font-size: .78rem; line-height: 1.2; margin-top: 4px; }
.hub__nodo {
  position: absolute; left: var(--x); top: var(--y); transform: translate(-50%, -50%);
  width: 84px; aspect-ratio: 1; border-radius: 20px; background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(92, 198, 214, .45); backdrop-filter: blur(6px);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  font-size: .72rem; font-weight: 600; transition: background .3s, transform .3s;
}
.hub__nodo:hover { background: var(--teal); transform: translate(-50%, -50%) scale(1.08); }
.hub__nodo .ico { width: 28px; height: 28px; color: var(--teal-claro); }
.hub__nodo:hover .ico { color: #fff; }

/* ====== Ventajas ====== */
.ventajas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.ventaja { padding: 30px 28px; border-radius: var(--radio); border: 1px solid var(--borde); transition: border-color .3s, box-shadow .3s; }
.ventaja:hover { border-color: var(--teal-claro); box-shadow: var(--sombra); }
.ventaja .ico { width: 44px; height: 44px; padding: 10px; border-radius: 12px; background: var(--teal-suave); color: var(--teal); margin-bottom: 16px; }
.ventaja h3 { color: var(--navy); font-size: 1.1rem; margin-bottom: 6px; }
.ventaja p { color: var(--gris); font-size: .92rem; }

/* ====== Preguntas ====== */
.faq { display: grid; gap: 12px; }
.faq details { background: #fff; border-radius: 14px; border: 1px solid var(--borde); overflow: hidden; }
.faq summary { cursor: pointer; list-style: none; padding: 20px 56px 20px 24px; font-weight: 700; color: var(--navy); position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: 22px; top: 50%; transform: translateY(-50%); font-size: 1.5rem; font-weight: 400; color: var(--teal); transition: transform .3s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details[open] { border-color: var(--teal-claro); }
.faq details p { padding: 0 24px 20px; color: var(--gris); }

/* ====== Contacto ====== */
.contacto { background: linear-gradient(135deg, var(--navy-3), var(--navy) 55%, var(--navy-2)); color: #fff; }
.contacto h2 { color: #fff !important; margin-bottom: 14px; }
.contacto__fila { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.contacto__info > p { color: rgba(255, 255, 255, .78); margin-bottom: 30px; }
.wa-tarjeta {
  display: flex; align-items: center; gap: 16px; padding: 18px 22px; margin-bottom: 14px;
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .12); border-radius: 16px;
  transition: background .25s, transform .25s, border-color .25s;
}
.wa-tarjeta:hover { background: rgba(37, 211, 102, .15); border-color: var(--wa); transform: translateX(6px); }
.wa-tarjeta > .ico:first-child { width: 46px; height: 46px; padding: 10px; border-radius: 50%; background: var(--wa); color: #fff; }
.wa-tarjeta div { flex: 1; }
.wa-tarjeta small { display: block; font-size: .75rem; color: rgba(255, 255, 255, .6); text-transform: uppercase; letter-spacing: 1.5px; }
.wa-tarjeta strong { font-size: 1.3rem; letter-spacing: .5px; }
.ico--flecha { color: var(--wa); }

.formulario { background: #fff; color: var(--texto); border-radius: 22px; padding: 34px; box-shadow: 0 30px 70px rgba(0, 0, 0, .35); }
.formulario h3 { color: var(--navy); font-size: 1.35rem; }
.formulario__sub { color: var(--gris); font-size: .88rem; margin-bottom: 20px; }
.campo { display: flex; flex-direction: column; margin-bottom: 14px; border: none; }
.campo label, .campo legend { font-size: .8rem; font-weight: 700; color: var(--navy-2); margin-bottom: 6px; }
.campo input, .campo select, .campo textarea {
  font: inherit; font-size: .93rem; padding: 11px 14px; border: 1.5px solid var(--borde); border-radius: 10px;
  background: #fbfdfe; color: var(--texto); transition: border-color .2s, box-shadow .2s; width: 100%;
}
.campo textarea { resize: vertical; }
.campo input:focus, .campo select:focus, .campo textarea:focus { outline: none; border-color: var(--teal); box-shadow: 0 0 0 4px rgba(30, 157, 181, .15); }
.campo .invalido { border-color: #c0392b; }
.opciones { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.opciones label {
  display: flex; align-items: center; gap: 8px; font-weight: 500; font-size: .85rem; color: var(--texto);
  border: 1.5px solid var(--borde); border-radius: 10px; padding: 9px 11px; cursor: pointer; margin: 0; transition: border-color .2s, background .2s;
}
.opciones label:has(input:checked) { border-color: var(--teal); background: var(--teal-suave); }
.opciones input { accent-color: var(--teal); width: auto; }
.formulario__error { color: #c0392b; font-size: .85rem; min-height: 1.2em; margin-bottom: 8px; }

/* ====== Pie ====== */
.pie { background: var(--navy-3); color: rgba(255, 255, 255, .7); padding-top: 64px; font-size: .9rem; }
.pie__fila { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 44px; }
.pie__marca img { width: 74px; background: #fff; border-radius: 16px; padding: 5px; margin-bottom: 14px; }
.pie h4 { color: #fff; font-size: .95rem; margin-bottom: 14px; }
.pie a { display: block; margin-bottom: 8px; transition: color .2s; }
.pie a:hover { color: var(--teal-claro); }
.pie__base { border-top: 1px solid rgba(255, 255, 255, .1); text-align: center; padding: 20px; font-size: .8rem; }

/* ====== WhatsApp flotante ====== */
.wa-flotante {
  position: fixed; right: 22px; bottom: 22px; z-index: 60; width: 60px; height: 60px; border-radius: 50%;
  display: grid; place-items: center; background: var(--wa); color: #fff;
  box-shadow: 0 10px 28px rgba(37, 211, 102, .5); transition: transform .25s;
}
.wa-flotante::before { content: ''; position: absolute; inset: 0; border-radius: 50%; background: var(--wa); animation: pulso 2.2s ease-out infinite; z-index: -1; }
.wa-flotante:hover { transform: scale(1.1); }
.wa-flotante .ico { width: 32px; height: 32px; }
@keyframes pulso { from { transform: scale(1); opacity: .6; } to { transform: scale(1.7); opacity: 0; } }

/* ====== Animación de aparición ====== */
.revelar { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.revelar.visible { opacity: 1; transform: none; }
.galeria figure.revelar.visible:first-child { transform: rotate(-3deg); }
.galeria figure.revelar.visible:last-child { transform: rotate(3deg); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .revelar { opacity: 1; transform: none; transition: none; }
  .flotante, .hub__lineas line, .wa-flotante::before { animation: none; }
}

/* ====== Responsivo ====== */
@media (max-width: 1080px) {
  .sistemas { grid-template-columns: repeat(2, 1fr); }
  .pilares__grid { grid-template-columns: repeat(2, 1fr); }
  .galeria__grid { grid-template-columns: 1fr 1fr; }
  .galeria__texto { grid-column: 1 / -1; order: -1; }
}
@media (max-width: 900px) {
  .nav__hamburguesa { display: block; }
  .nav__menu {
    position: absolute; top: 76px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(10, 29, 48, .98); padding: 10px 20px 24px; display: none;
  }
  .nav__menu.abierto { display: flex; }
  .nav__menu a:not(.btn) { padding: 14px 4px; border-bottom: 1px solid rgba(255, 255, 255, .08); }
  .nav__menu .btn { margin-top: 16px; }
  .hero { padding-top: 120px; }
  .hero__fila, .integracion__fila, .contacto__fila { grid-template-columns: 1fr; gap: 50px; }
  .hero__marco { transform: none; }
  .productos, .ventajas { grid-template-columns: repeat(2, 1fr); }
  .pie__fila { grid-template-columns: 1fr 1fr; }
  .seccion { padding: 76px 0; }
}
@media (max-width: 600px) {
  .sistemas, .pilares__grid, .productos, .ventajas, .galeria__grid, .opciones { grid-template-columns: 1fr; }
  .pilares { margin-top: -36px; }
  .flotante { font-size: .75rem; padding: 8px 12px; }
  .flotante--1 { left: -6px; }
  .flotante--2 { right: -6px; }
  .hub__nodo { width: 66px; font-size: .62rem; border-radius: 16px; }
  .hub__nodo .ico { width: 22px; height: 22px; }
  .formulario { padding: 24px; }
  .pie__fila { grid-template-columns: 1fr; }
  .galeria figure:first-child, .galeria figure:last-child,
  .galeria figure.revelar.visible:first-child, .galeria figure.revelar.visible:last-child { transform: none; }
}