/* OxiGen — Renueva tu vida
   Paleta tomada del sitio original (oxi-gen.org, 2019–2024) */
:root {
  --petroleo: #00556f;
  --petroleo-osc: #003c4f;
  --petroleo-claro: #e6f0f3;
  --lima: #95d600;
  --lima-osc: #6e9f00;
  --celeste: #40b2e9;
  --texto: #1f2d33;
  --texto-suave: #5b6b72;
  --borde: #dde6ea;
  --fondo: #ffffff;
  --fondo-alt: #f5f8f9;
  --radio: 14px;
  --sombra: 0 10px 30px rgba(0, 60, 79, .08);
  --ancho: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Archivo", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--texto);
  background: var(--fondo);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--petroleo); }
h1, h2, h3, h4 { line-height: 1.2; color: var(--petroleo-osc); margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 4.2vw, 3.2rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 600; }
p { margin: 0 0 1em; }
.contenedor { max-width: var(--ancho); margin: 0 auto; padding: 0 20px; }
.seccion { padding: 80px 0; }
.seccion.alt { background: var(--fondo-alt); }
.etiqueta {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--lima-osc); margin-bottom: .8em;
}
.intro { font-size: 1.15rem; color: var(--texto-suave); max-width: 720px; }
.centrado { text-align: center; }
.centrado .intro { margin-left: auto; margin-right: auto; }

/* Barra superior */
.barra-sup { background: var(--petroleo-osc); color: #cfe3ea; font-size: .88rem; }
.barra-sup .contenedor { display: flex; gap: 22px; justify-content: flex-end; padding-top: 7px; padding-bottom: 7px; flex-wrap: wrap; }
.barra-sup a { color: #fff; text-decoration: none; }

/* Encabezado */
.encabezado { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); backdrop-filter: blur(8px); border-bottom: 1px solid var(--borde); }
.encabezado .contenedor { display: flex; align-items: center; justify-content: space-between; height: 78px; }
.marca img { height: 54px; width: auto; }
.menu { display: flex; gap: 6px; list-style: none; margin: 0; padding: 0; align-items: center; }
.menu a { display: block; padding: 10px 14px; border-radius: 10px; text-decoration: none; color: var(--texto); font-weight: 500; font-size: .96rem; }
.menu a:hover { background: var(--petroleo-claro); color: var(--petroleo); }
.menu a.activo { color: var(--petroleo); font-weight: 700; }
.menu .btn { margin-left: 8px; }
.menu-toggle { display: none; background: none; border: 0; padding: 10px; cursor: pointer; }
.menu-toggle span { display: block; width: 26px; height: 2px; background: var(--petroleo); margin: 6px 0; border-radius: 2px; }

/* Botones */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 24px; border-radius: 999px; font-weight: 700; font-size: 1rem;
  text-decoration: none; border: 2px solid transparent; cursor: pointer; transition: .2s;
  font-family: inherit;
}
.btn-lima { background: var(--lima); color: var(--petroleo-osc) !important; }
.btn-lima:hover { background: #a6e61a; transform: translateY(-1px); }
.btn-petroleo { background: var(--petroleo); color: #fff !important; }
.btn-petroleo:hover { background: var(--petroleo-osc); }
.btn-borde { border-color: var(--petroleo); color: var(--petroleo) !important; background: transparent; }
.btn-borde:hover { background: var(--petroleo-claro); }
.btn-chico { padding: 9px 18px; font-size: .92rem; }
.botones { display: flex; gap: 14px; flex-wrap: wrap; }

/* Portada */
.hero { background: linear-gradient(180deg, #fff 0%, var(--petroleo-claro) 100%); overflow: hidden; }
.hero .contenedor { display: grid; grid-template-columns: 1.05fr 1fr; gap: 40px; align-items: center; padding-top: 70px; padding-bottom: 70px; }
.hero h1 span { color: var(--lima-osc); }
.hero p.intro { margin-bottom: 1.8em; }
.hero-img { position: relative; }
.hero-img img { width: 100%; mix-blend-mode: multiply; }
.hero-datos { display: flex; gap: 30px; margin-top: 36px; flex-wrap: wrap; }
.hero-datos div strong { display: block; font-size: 1.6rem; color: var(--petroleo); }
.hero-datos div { font-size: .9rem; color: var(--texto-suave); }

/* Encabezado de página interior */
.pagina-cab { background: var(--petroleo); color: #fff; padding: 64px 0 56px; position: relative; overflow: hidden; }
.pagina-cab::after { content: ""; position: absolute; right: -80px; top: -80px; width: 320px; height: 320px; border-radius: 50%; border: 40px solid rgba(149,214,0,.15); }
.pagina-cab h1 { color: #fff; }
.pagina-cab .intro { color: #cfe3ea; }
.pagina-cab .etiqueta { color: var(--lima); }
.migas { font-size: .88rem; margin-bottom: 14px; color: #9fc4d0; }
.migas a { color: #cfe3ea; text-decoration: none; }

/* Tarjetas */
.rejilla { display: grid; gap: 24px; }
.r2 { grid-template-columns: repeat(2, 1fr); }
.r3 { grid-template-columns: repeat(3, 1fr); }
.r4 { grid-template-columns: repeat(4, 1fr); }
.tarjeta { background: #fff; border: 1px solid var(--borde); border-radius: var(--radio); padding: 28px; box-shadow: var(--sombra); }
.tarjeta h3 { margin-top: 4px; }
.tarjeta p:last-child { margin-bottom: 0; }
.icono { width: 52px; height: 52px; border-radius: 14px; background: var(--petroleo-claro); display: grid; place-items: center; margin-bottom: 16px; }
.icono svg { width: 26px; height: 26px; stroke: var(--petroleo); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.tarjeta a.mas { font-weight: 700; text-decoration: none; color: var(--petroleo); }
.tarjeta a.mas:hover { color: var(--lima-osc); }

/* Dos caminos */
.camino { border-radius: 20px; padding: 40px; color: #fff; position: relative; overflow: hidden; min-height: 300px; display: flex; flex-direction: column; justify-content: flex-end; }
.camino h3 { color: #fff; font-size: 1.6rem; }
.camino p { color: rgba(255,255,255,.88); }
.camino.pacientes { background: linear-gradient(0deg, rgba(0,60,79,.95) 30%, rgba(0,60,79,.35)), url(../img/sesion-paciente.jpg) center/cover; }
.camino.equipos { background: linear-gradient(160deg, #ffffff 0%, var(--petroleo-claro) 100%); border: 1px solid var(--borde); color: var(--texto); }
.camino.equipos h3 { color: var(--petroleo-osc); }
.camino.equipos p { color: var(--texto-suave); }
.camino.equipos img { position: absolute; right: -6px; top: 50%; transform: translateY(-50%); width: 44%; mix-blend-mode: multiply; }
.camino.equipos > :not(img) { max-width: 56%; }
.camino { min-height: 340px; }

/* Bloque texto + imagen */
.dividido { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.dividido img { border-radius: 20px; box-shadow: var(--sombra); }

/* Lista con viñeta */
.lista-check { list-style: none; padding: 0; margin: 0 0 1em; }
.lista-check li { padding-left: 32px; position: relative; margin-bottom: 10px; }
.lista-check li::before { content: ""; position: absolute; left: 0; top: 6px; width: 18px; height: 18px; border-radius: 50%; background: var(--lima); box-shadow: inset 0 0 0 5px #eaf8c7; }

/* Contenido largo */
.prosa { max-width: 780px; }
.prosa h2 { margin-top: 1.6em; }
.prosa h2:first-child { margin-top: 0; }
.prosa p, .prosa li { color: #33434a; }
.indice { position: sticky; top: 100px; }
.indice a { display: block; padding: 7px 0; color: var(--texto-suave); text-decoration: none; border-left: 2px solid var(--borde); padding-left: 14px; font-size: .95rem; }
.indice a:hover { color: var(--petroleo); border-color: var(--lima); }
.con-indice { display: grid; grid-template-columns: 240px 1fr; gap: 56px; align-items: start; }

/* Aviso de dato pendiente — BORRAR la clase cuando se confirme cada dato */
.pendiente { background: #fff4c2; border: 1px dashed #d9a400; padding: 1px 6px; border-radius: 4px; font-size: .92em; color: #6b5200; }
.nota { background: var(--petroleo-claro); border-left: 4px solid var(--petroleo); padding: 18px 22px; border-radius: 0 12px 12px 0; font-size: .95rem; }
.nota.medica { background: #fff8e8; border-color: #e0a100; }

/* Precio / cifras */
.cifra { font-size: 2.4rem; font-weight: 700; color: var(--petroleo); line-height: 1; margin-bottom: 8px; }
.cifra small { font-size: 1rem; color: var(--texto-suave); font-weight: 500; }

/* Pasos */
.pasos { counter-reset: paso; display: grid; gap: 18px; }
.paso { counter-increment: paso; display: grid; grid-template-columns: 56px 1fr; gap: 18px; align-items: start; }
.paso::before { content: counter(paso); width: 56px; height: 56px; border-radius: 50%; background: var(--petroleo); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 1.3rem; }
.paso h3 { margin-bottom: .25em; }

/* Preguntas frecuentes */
details { background: #fff; border: 1px solid var(--borde); border-radius: 12px; margin-bottom: 12px; overflow: hidden; }
summary { cursor: pointer; padding: 20px 56px 20px 24px; font-weight: 600; font-size: 1.05rem; color: var(--petroleo-osc); list-style: none; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 24px; top: 50%; transform: translateY(-50%); font-size: 1.6rem; color: var(--lima-osc); font-weight: 400; }
details[open] summary::after { content: "–"; }
details[open] summary { border-bottom: 1px solid var(--borde); }
details .respuesta { padding: 18px 24px 8px; color: #33434a; }

/* Formularios */
.formulario { background: #fff; border: 1px solid var(--borde); border-radius: 20px; padding: 34px; box-shadow: var(--sombra); }
.campos { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.campo { display: flex; flex-direction: column; gap: 6px; }
.campo.completo { grid-column: 1 / -1; }
label { font-weight: 600; font-size: .92rem; color: var(--petroleo-osc); }
input, select, textarea {
  font: inherit; font-size: 1rem; padding: 12px 14px; border: 1.5px solid var(--borde); border-radius: 10px;
  background: #fbfdfd; color: var(--texto); width: 100%;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--petroleo); background: #fff; box-shadow: 0 0 0 4px rgba(0,85,111,.1); }
.form-nota { font-size: .85rem; color: var(--texto-suave); margin-top: 14px; }
.pestanas { display: flex; gap: 8px; margin-bottom: 22px; background: var(--fondo-alt); padding: 6px; border-radius: 999px; width: fit-content; }
.pestanas button { font: inherit; font-weight: 700; border: 0; background: none; padding: 10px 22px; border-radius: 999px; cursor: pointer; color: var(--texto-suave); }
.pestanas button.activa { background: var(--petroleo); color: #fff; }
.panel-form { display: none; }
.panel-form.activo { display: block; }

.mapa { border: 0; width: 100%; height: 360px; border-radius: 20px; }
.datos-contacto { list-style: none; padding: 0; margin: 0; }
.datos-contacto li { display: flex; gap: 14px; margin-bottom: 18px; align-items: flex-start; }
.datos-contacto .icono { margin: 0; flex: none; width: 44px; height: 44px; }
.datos-contacto .icono svg { width: 22px; height: 22px; }
.datos-contacto strong { display: block; color: var(--petroleo-osc); }

/* Sellos */
.sellos { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; }
.sellos img { height: 72px; width: auto; border-radius: 10px; }

/* Llamado a la acción */
.cta { background: linear-gradient(120deg, var(--petroleo-osc), var(--petroleo)); color: #fff; border-radius: 24px; padding: 56px; display: flex; justify-content: space-between; align-items: center; gap: 30px; flex-wrap: wrap; }
.cta h2 { color: #fff; margin-bottom: .3em; }
.cta p { color: #cfe3ea; margin: 0; }

/* Pie */
.pie { background: var(--petroleo-osc); color: #b9d3db; padding: 64px 0 28px; font-size: .95rem; }
.pie .contenedor > .rejilla { grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; }
.pie h4 { color: #fff; font-size: 1rem; margin-bottom: 1em; }
.pie a { color: #b9d3db; text-decoration: none; display: block; padding: 3px 0; }
.pie a:hover { color: var(--lima); }
.pie .logo-pie { height: 56px; width: auto; margin-bottom: 16px; }
.pie .legal { border-top: 1px solid rgba(255,255,255,.12); margin-top: 44px; padding-top: 22px; display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; font-size: .85rem; color: #8fb0bb; }
.aviso-medico { font-size: .82rem; color: #8fb0bb; margin-top: 18px; max-width: 900px; }

/* WhatsApp flotante */
.wa-flotante { position: fixed; right: 20px; bottom: 20px; z-index: 60; width: 60px; height: 60px; border-radius: 50%; background: #25d366; display: grid; place-items: center; box-shadow: 0 8px 24px rgba(0,0,0,.2); transition: .2s; }
.wa-flotante:hover { transform: scale(1.07); }
.wa-flotante svg { width: 32px; height: 32px; fill: #fff; }

/* Adaptable */
@media (max-width: 980px) {
  .r4 { grid-template-columns: repeat(2, 1fr); }
  .r3 { grid-template-columns: repeat(2, 1fr); }
  .con-indice { grid-template-columns: 1fr; }
  .indice { display: none; }
  .pie .contenedor > .rejilla { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .menu-toggle { display: block; }
  .menu { display: none; position: absolute; top: 78px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 12px 20px 20px; border-bottom: 1px solid var(--borde); box-shadow: var(--sombra); }
  .menu.abierto { display: flex; }
  .menu .btn { margin: 8px 0 0; }
  .hero .contenedor, .dividido, .r2 { grid-template-columns: 1fr; }
  .hero-img { order: -1; max-width: 480px; margin: 0 auto; }
  .seccion { padding: 56px 0; }
  .cta { padding: 36px 28px; }
  .barra-sup .contenedor { justify-content: center; gap: 14px; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .r3, .r4, .campos, .pie .contenedor > .rejilla { grid-template-columns: 1fr; }
  .formulario { padding: 22px; }
  .camino { padding: 28px; }
  .camino.equipos img { position: static; transform: none; width: 70%; margin: 0 auto 10px; }
  .camino.equipos > :not(img) { max-width: none; }
  .barra-sup .ocultar-movil { display: none; }
}