:root {
  --azul: #0b3a5c;
  --azul-2: #135e8f;
  --aqua: #21b3c8;
  --cielo: #eaf5fb;
  --tinta: #13202b;
  --gris: #5b6b78;
  --linea: #dbe6ee;
  --wa: #1ea952;
  --wa-hover: #188a43;
  --radio: 16px;
  --sombra: 0 10px 30px rgba(11, 58, 92, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  font-family: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--tinta);
  background: #fff;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--azul-2); }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 5vw, 2.3rem); font-weight: 800; color: var(--azul); }
h3 { font-size: 1.2rem; font-weight: 700; }
.wrap { width: min(1120px, 100% - 40px); margin-inline: auto; }
.narrow { width: min(760px, 100% - 40px); }
.center { text-align: center; margin-top: 28px; }
.muted { color: var(--gris); }
.ico { width: 1.2em; height: 1.2em; flex: none; }

/* Botones */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: .85em 1.4em; border-radius: 999px; font-weight: 700; text-decoration: none;
  border: 2px solid transparent; cursor: pointer; transition: transform .15s, background .15s;
  font-size: 1rem;
}
.btn:active { transform: scale(.97); }
.btn-wa { background: var(--wa); color: #fff; }
.btn-wa:hover { background: var(--wa-hover); }
.btn-lg { font-size: 1.1rem; padding: 1em 1.7em; box-shadow: 0 8px 22px rgba(30, 169, 82, .35); }
.btn-sm { padding: .5em 1.1em; font-size: .9rem; }
.btn-outline { border-color: var(--azul-2); color: var(--azul-2); background: #fff; }

/* Barra superior */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 20px; background: rgba(255,255,255,.94); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--linea);
}
.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--azul); font-size: 1.15rem; font-weight: 600; }
.logo b { color: var(--aqua); font-weight: 800; }

/* Portada */
.hero { background: linear-gradient(180deg, var(--cielo), #fff); padding: 28px 0 40px; }
.hero-grid { display: grid; gap: 28px; align-items: center; }
.eyebrow { font-size: .85rem; font-weight: 700; color: var(--azul-2); text-transform: uppercase; letter-spacing: .06em; margin: 0 0 10px; }
.hero h1 { font-size: clamp(2rem, 8vw, 3.4rem); font-weight: 800; color: var(--azul); }
.hl { color: var(--aqua); white-space: nowrap; }
.lead { font-size: 1.1rem; color: var(--gris); margin: 0 0 22px; }
.hint { font-size: .9rem; color: var(--gris); margin: 10px 0 0; }
.badges { list-style: none; padding: 0; margin: 22px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.badges li { display: flex; align-items: center; gap: 6px; background: #fff; border: 1px solid var(--linea); border-radius: 999px; padding: 6px 12px; font-size: .88rem; font-weight: 600; color: var(--azul); }
.badges .ico { color: var(--aqua); }

/* Comparador antes/después */
.ba { position: relative; margin: 0; border-radius: var(--radio); overflow: hidden; box-shadow: var(--sombra); aspect-ratio: 4 / 3; background: var(--linea); user-select: none; }
.ba img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ba-before { clip-path: inset(0 calc(100% - var(--pos)) 0 0); }
.ba-handle { position: absolute; top: 0; bottom: 0; left: var(--pos); width: 3px; background: #fff; transform: translateX(-50%); pointer-events: none; }
.ba-handle::after {
  content: "‹ ›"; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 44px; height: 44px; border-radius: 50%; background: #fff; color: var(--azul);
  display: grid; place-items: center; font-weight: 800; box-shadow: 0 4px 12px rgba(0,0,0,.25);
}
.ba input { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: ew-resize; margin: 0; }
.ba-tag { position: absolute; top: 12px; padding: 4px 10px; border-radius: 999px; font-size: .75rem; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; pointer-events: none; }
.ba-tag-l { left: 12px; background: rgba(19, 32, 43, .75); color: #fff; }
.ba-tag-r { right: 12px; background: var(--aqua); color: #04222e; }

/* Confianza */
.trust { background: var(--azul); color: #fff; padding: 22px 0; }
.trust-title { margin: 0 0 10px; font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; opacity: .75; text-align: center; }
.trust-list { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 22px; font-weight: 700; }

/* Secciones */
.section { padding: 56px 0; }
.section-alt { background: var(--cielo); }
.section-dark { background: var(--azul); color: #fff; }
.section-dark h2 { color: #fff; }
.sub { color: var(--gris); margin: -6px 0 22px; }

.chips { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 6px; margin-bottom: 18px; scrollbar-width: none; }
.chips a { flex: none; padding: 8px 16px; border-radius: 999px; background: var(--cielo); color: var(--azul); font-weight: 700; text-decoration: none; font-size: .95rem; }
.cards { display: grid; gap: 16px; }
.card { border: 1px solid var(--linea); border-radius: var(--radio); padding: 22px; background: #fff; display: flex; flex-direction: column; }
.card p { color: var(--gris); margin: 0 0 12px; }
.card .btn { margin-top: auto; align-self: flex-start; }
.card-ico { width: 48px; height: 48px; border-radius: 12px; background: var(--cielo); color: var(--azul-2); display: grid; place-items: center; margin-bottom: 12px; }
.card-ico .ico { width: 26px; height: 26px; }
.checks { list-style: none; padding: 0; margin: 0 0 18px; display: grid; gap: 6px; }
.checks li { padding-left: 26px; position: relative; }
.checks li::before { content: ""; position: absolute; left: 0; top: .3em; width: 16px; height: 16px; border-radius: 50%; background: var(--aqua) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5 7 11l5-6' fill='none' stroke='white' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E") center/contain no-repeat; }

/* Galería */
.gallery { display: grid; grid-auto-flow: column; grid-auto-columns: 86%; gap: 14px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 10px; }
.gallery-item { margin: 0; scroll-snap-align: start; }
.gallery-item figcaption { font-weight: 600; margin-top: 8px; color: var(--azul); }

/* Pasos */
.steps { list-style: none; counter-reset: paso; padding: 0; margin: 0; display: grid; gap: 14px; }
.steps li { counter-increment: paso; display: flex; gap: 14px; align-items: center; background: var(--cielo); border-radius: var(--radio); padding: 16px 18px; }
.steps li::before { content: counter(paso); flex: none; width: 38px; height: 38px; border-radius: 50%; background: var(--azul); color: #fff; display: grid; place-items: center; font-weight: 800; }

/* Por qué */
.whys { display: grid; gap: 22px; }
.whys .ico { width: 32px; height: 32px; color: var(--aqua); margin-bottom: 8px; }
.whys p { margin: 0; opacity: .85; }

/* FAQ */
.faq details { border-bottom: 1px solid var(--linea); padding: 16px 0; }
.faq summary { font-weight: 700; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; line-height: 1; color: var(--azul-2); }
.faq details[open] summary::after { content: "–"; }
.faq p { margin: 10px 0 0; color: var(--gris); }

/* Cierre */
.final { background: linear-gradient(135deg, var(--azul), var(--azul-2)); color: #fff; padding: 56px 0 64px; }
.final h2 { color: #fff; }

.footer { background: #071f31; color: #c4d4e0; padding: 28px 0 96px; font-size: .92rem; text-align: center; }
.footer a { color: #fff; }
.footer p { margin: 4px 0; }
.footer .muted { color: #7f97a8; }

/* Botón flotante */
.wa-float {
  position: fixed; right: 16px; bottom: calc(16px + env(safe-area-inset-bottom)); z-index: 30;
  width: 60px; height: 60px; border-radius: 50%; background: var(--wa); color: #fff;
  display: grid; place-items: center; box-shadow: 0 8px 24px rgba(0,0,0,.25);
}
.wa-float .ico { width: 32px; height: 32px; }

/* Escritorio */
@media (min-width: 760px) {
  .hero { padding: 56px 0 72px; }
  .hero-grid { grid-template-columns: 1.05fr 1fr; gap: 48px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-auto-columns: calc((100% - 28px) / 3); }
  .steps { grid-template-columns: repeat(4, 1fr); }
  .steps li { flex-direction: column; align-items: flex-start; }
  .whys { grid-template-columns: repeat(4, 1fr); }
  .chips { display: none; }
}
@media (min-width: 1000px) {
  .cards { grid-template-columns: repeat(4, 1fr); }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* Página de pago */
.pago-body { background: var(--azul); min-height: 100vh; color: #fff; }
.pago { width: min(520px, 100% - 32px); margin: 0 auto; padding: 24px 0 48px; }
.pago-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px; }
.pago-top a { color: #cfe3f5; text-decoration: none; font-weight: 600; }
.pago .eyebrow { color: var(--aqua); }
.pago h1 { font-size: 2rem; font-weight: 800; }
.pago .intro { color: #cfe3f5; margin: 0 0 22px; }
.datos { background: #fff; color: var(--tinta); border-radius: var(--radio); padding: 6px 18px; box-shadow: var(--sombra); }
.dato { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--linea); }
.dato:last-child { border-bottom: 0; }
.dato small { display: block; color: var(--gris); font-size: .8rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; }
.dato span { font-weight: 700; font-size: 1.05rem; word-break: break-all; }
.dato .nota { display: block; margin-top: 4px; font-weight: 400; font-size: .85rem; color: var(--gris); word-break: normal; }
.copiar { flex: none; border: 1px solid var(--azul-2); background: #fff; color: var(--azul-2); border-radius: 999px; padding: 6px 14px; font: inherit; font-weight: 700; font-size: .85rem; cursor: pointer; }
.copiar.ok { background: var(--wa); color: #fff; border-color: var(--wa); }
.pago .btn { width: 100%; margin-top: 22px; }
.pago .aviso { color: #cfe3f5; text-align: center; font-size: .92rem; margin-top: 14px; }
.pago-pie { text-align: center; color: #7f97a8; font-size: .85rem; margin-top: 36px; }