/* ============================================================================
   NUBE EXPRESS — landing para la campaña de WhatsApp
   ----------------------------------------------------------------------------
   Paleta: verde profundo (confianza, comercio de barrio) + crema calida + un
   acento naranja para los botones de WhatsApp. Tipografia del sistema para que
   cargue instantaneo: es una landing para mandar por WhatsApp, tiene que abrir
   YA en un celular con datos flojos.
   ========================================================================== */

:root {
  --verde: #0c1a16;
  --verde-2: #12261f;
  --verde-3: #1a3329;
  --linea: #26443a;
  --crema: #f6f2e9;
  --crema-2: #e8e2d5;
  --gris: #a8bdb4;
  --gris-osc: #7f9690;
  --naranja: #ff7a2f;
  --naranja-osc: #e8661f;
  --wa: #25d366;
  --wa-osc: #1eb757;
  --radio: 16px;
  --env: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--verde);
  color: var(--crema);
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 5.5rem;
}

img { max-width: 100%; display: block; }
a { color: var(--naranja); text-decoration: none; }
a:hover { color: #fff; }

.env { width: 100%; max-width: var(--env); margin: 0 auto; padding: 0 1.15rem; }
.env-angosto { max-width: 720px; }

.salto {
  position: absolute; left: -999px; top: 0; z-index: 999;
  background: var(--naranja); color: #fff; padding: .6rem 1rem;
}
.salto:focus { left: 0; }

/* ---------- botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .8rem 1.4rem; border-radius: 999px; border: 1px solid transparent;
  font-weight: 700; font-size: .95rem; line-height: 1.2; text-align: center;
  cursor: pointer; transition: transform .12s ease, background .18s ease, border-color .18s ease;
}
.btn:active { transform: translateY(1px); }
.btn-principal { background: var(--naranja); color: #1a0d05; }
.btn-principal:hover { background: var(--naranja-osc); color: #1a0d05; }
.btn-wa { background: var(--wa); color: #06301a; }
.btn-wa:hover { background: var(--wa-osc); color: #06301a; }
.btn-linea { background: transparent; color: var(--crema); border-color: #3a5a4c; }
.btn-linea:hover { border-color: var(--naranja); color: var(--naranja); }
.btn-grande { padding: 1rem 1.9rem; font-size: 1.02rem; }
.btn-chico { padding: .55rem 1rem; font-size: .86rem; }

/* ---------- cabecera ---------- */
.cab {
  position: sticky; top: 0; z-index: 60;
  background: rgba(12, 26, 22, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--linea);
}
.cab-in { display: flex; align-items: center; justify-content: space-between; min-height: 62px; gap: 1rem; }
.marca { display: inline-flex; align-items: center; gap: .55rem; }
.marca-punto {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--naranja);
  box-shadow: 0 0 0 4px rgba(255, 122, 47, .18);
}
.marca-txt { color: var(--crema); font-size: 1.05rem; letter-spacing: .02em; }
.marca-txt strong { font-weight: 800; }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; padding: 3.2rem 0 2.8rem; }
.hero-fondo {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(46% 52% at 14% 8%, rgba(255, 122, 47, .20), transparent 68%),
    radial-gradient(52% 58% at 88% 20%, rgba(37, 211, 102, .13), transparent 70%);
}
.hero-in { position: relative; }
.sobre {
  margin: 0 0 .7rem;
  /* 13px minimo: la landing la lee gente de 40 a 65 anios en un celular.
     Con 12.5px la QA lo marcaba como ilegible. */
  font-size: .82rem; font-weight: 800; letter-spacing: .2em; text-transform: uppercase;
  color: var(--naranja);
}
.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 6.2vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -.02em;
  font-weight: 800;
}
.hero h1 em { font-style: normal; color: var(--wa); }
.lead { max-width: 40rem; color: #d7e3dd; font-size: 1.08rem; margin: 0 0 1.6rem; }
.hero-botones { display: flex; flex-wrap: wrap; gap: .7rem; }

.hero-datos {
  list-style: none; display: grid; gap: .8rem;
  margin: 2.2rem 0 0; padding: 0;
  grid-template-columns: 1fr;
}
@media (min-width: 700px) { .hero-datos { grid-template-columns: repeat(3, 1fr); } }
.hero-datos li {
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--linea);
  border-left: 3px solid var(--naranja);
  border-radius: 10px; padding: .8rem 1rem;
  display: grid; gap: .1rem;
}
.hero-datos strong { font-size: 1.02rem; color: var(--crema); }
.hero-datos span { font-size: .88rem; color: var(--gris); }

/* ---------- secciones ---------- */
.seccion { padding: 3.4rem 0; }
.seccion-alt { background: var(--verde-2); border-top: 1px solid var(--linea); border-bottom: 1px solid var(--linea); }
.titulo {
  margin: 0 0 .3rem;
  font-size: clamp(1.5rem, 4.4vw, 2.2rem);
  line-height: 1.2; letter-spacing: -.01em; font-weight: 800;
}
.titulo::after {
  content: ""; display: block; width: 56px; height: 4px; margin-top: .6rem;
  background: var(--naranja); border-radius: 3px;
}
.bajada { color: var(--gris); margin: 1.1rem 0 1.9rem; max-width: 46rem; }

/* ---------- comparacion ---------- */
.comparacion { display: grid; gap: 1rem; margin-top: 1.6rem; }
@media (min-width: 760px) { .comparacion { grid-template-columns: 1fr 1fr; } }
.comp-item {
  background: var(--verde-2); border: 1px solid var(--linea);
  border-radius: var(--radio); padding: 1.3rem 1.4rem;
}
.comp-mal { border-top: 3px solid #8a4a4a; }
.comp-bien { border-top: 3px solid var(--wa); }
.comp-item h3 { margin: 0 0 .7rem; font-size: 1.05rem; letter-spacing: .01em; }
.comp-item ul { margin: 0; padding-left: 1.1rem; }
.comp-item li { margin-bottom: .45rem; color: var(--crema-2); font-size: .96rem; }
.comp-mal li::marker { color: #d98a8a; }
.comp-bien li::marker { color: var(--wa); }

/* ---------- grilla de tarjetas ---------- */
.grilla-3 { display: grid; gap: .9rem; margin-top: 1.8rem; grid-template-columns: 1fr; }
@media (min-width: 700px) { .grilla-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .grilla-3 { grid-template-columns: repeat(3, 1fr); } }
.tarjeta {
  background: var(--verde-3); border: 1px solid var(--linea);
  border-radius: var(--radio); padding: 1.3rem 1.35rem;
}
.ico {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.2rem; height: 2.2rem; border-radius: 8px; margin-bottom: .7rem;
  background: rgba(255, 122, 47, .16); color: var(--naranja);
  font-weight: 800; font-size: .82rem; letter-spacing: .04em;
}
.tarjeta h3 { margin: 0 0 .4rem; font-size: 1.05rem; }
.tarjeta p { margin: 0; color: var(--gris); font-size: .94rem; }

/* ---------- ejemplos ---------- */
.grilla-ej { display: grid; gap: .8rem; margin-top: 1.6rem; grid-template-columns: repeat(2, 1fr); }
@media (min-width: 760px) { .grilla-ej { grid-template-columns: repeat(3, 1fr); } }
.ej { margin: 0; position: relative; border-radius: var(--radio); overflow: hidden; background: var(--verde-2); }
.ej img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.ej figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 1.6rem .9rem .75rem;
  background: linear-gradient(to top, rgba(6, 14, 11, .94), transparent);
  display: grid; gap: .05rem;
}
.ej strong { font-size: 1rem; }
/* 13px minimo por el mismo motivo que .sobre */
.ej span { font-size: .82rem; color: #cfdcd7; }

/* ---------- pasos ---------- */
.pasos { list-style: none; counter-reset: p; margin: 1.8rem 0 0; padding: 0; display: grid; gap: .8rem; }
.pasos li {
  counter-increment: p;
  position: relative; padding: .95rem 1rem .95rem 3.2rem;
  background: var(--verde-2); border: 1px solid var(--linea); border-radius: 12px;
  display: grid; gap: .15rem;
}
.pasos li::before {
  content: counter(p);
  position: absolute; left: .9rem; top: .95rem;
  width: 1.7rem; height: 1.7rem; border-radius: 50%;
  background: var(--naranja); color: #1a0d05;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: .85rem;
}
.pasos strong { font-size: .98rem; }
.pasos span { color: var(--gris); font-size: .92rem; }

/* ---------- cierre ---------- */
.cierre {
  padding: 3.8rem 0;
  background:
    radial-gradient(60% 70% at 50% 0%, rgba(37, 211, 102, .16), transparent 70%),
    var(--verde-2);
  border-top: 1px solid var(--linea);
  text-align: center;
}
.cierre h2 { margin: 0 0 .8rem; font-size: clamp(1.5rem, 4.6vw, 2.1rem); font-weight: 800; }
.cierre p { color: var(--gris); margin: 0 auto 1.6rem; max-width: 34rem; }
.cierre .nota { font-size: .85rem; color: var(--gris-osc); margin: 1.2rem 0 0; }

/* ---------- pie ---------- */
.pie { padding: 2.2rem 0 2.6rem; border-top: 1px solid var(--linea); text-align: center; }
.pie-marca { margin: 0; font-size: 1.1rem; font-weight: 600; }
.pie-marca strong { font-weight: 800; color: var(--naranja); }
.pie-txt { margin: .4rem 0; color: var(--gris); font-size: .9rem; }
.pie-txt strong { color: var(--crema); }
.pie-aviso { margin: 0; font-size: .82rem; color: var(--gris-osc); }

/* ---------- WhatsApp flotante ---------- */
.wa-flotante {
  position: fixed; right: 1rem; bottom: 1rem; z-index: 80;
  width: 3.6rem; height: 3.6rem; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--wa); color: #06301a;
  box-shadow: 0 10px 26px rgba(37, 211, 102, .35);
}
.wa-flotante:hover { background: var(--wa-osc); color: #06301a; }

/* ---------- ajustes de celular ---------- */
@media (max-width: 480px) {
  body { font-size: 16px; padding-bottom: 5rem; }
  .hero { padding: 2.4rem 0 2rem; }
  .seccion { padding: 2.6rem 0; }
  .hero-botones .btn { width: 100%; }
  .comparacion { gap: .8rem; }
  .cierre { padding: 2.8rem 0; }
}

/* ---------- accesibilidad ---------- */
:focus-visible { outline: 2px solid var(--naranja); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}
@media print {
  .cab, .wa-flotante { display: none !important; }
  body { background: #fff; color: #000; }
}