/* ===== Variables de color ===== */
:root {
  --azul-marino: #0d1b2a;
  --azul-marino-claro: #14304d;
  --cobre: #b87333;
  --cobre-claro: #d18f4f;
  --blanco: #f5f5f0;
  --gris-texto: #c7cdd4;
}

/* ===== Reset básico ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background-color: var(--azul-marino);
  color: var(--blanco);
  line-height: 1.5;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

h1, h2, h3 {
  line-height: 1.2;
}

/* ===== Header ===== */
.site-header {
  padding: 1.5rem 0;
  border-bottom: 1px solid rgba(184, 115, 51, 0.2);
}

.logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--cobre-claro);
  letter-spacing: 0.5px;
}

/* ===== Hero ===== */
.hero {
  padding: 5rem 0 4rem;
  text-align: center;
  background: linear-gradient(180deg, var(--azul-marino) 0%, var(--azul-marino-claro) 100%);
}

.hero h1 {
  font-size: 2.6rem;
  max-width: 750px;
  margin: 0 auto 1rem;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--cobre-claro);
  font-weight: 600;
}

/* ===== Productos ===== */
.productos {
  padding: 4rem 0;
}

.productos h2,
.como-funciona h2,
.contacto h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 2.5rem;
  color: var(--blanco);
}

.tarjetas {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.tarjeta {
  background-color: var(--azul-marino-claro);
  border: 1px solid rgba(184, 115, 51, 0.25);
  border-radius: 12px;
  padding: 2rem 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.tarjeta:hover {
  transform: translateY(-4px);
  border-color: var(--cobre);
}

.tarjeta h3 {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
}

.tarjeta .precio {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--cobre-claro);
  margin-bottom: 1rem;
}

.tarjeta .descripcion {
  color: var(--gris-texto);
  font-size: 0.95rem;
  margin-bottom: 1.75rem;
  flex-grow: 1;
}

.boton {
  display: inline-block;
  background-color: var(--cobre);
  color: var(--blanco);
  text-decoration: none;
  font-weight: 600;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  transition: background-color 0.2s ease;
}

.boton:hover {
  background-color: var(--cobre-claro);
}

.boton-disabled {
  background-color: transparent;
  border: 1px solid rgba(184, 115, 51, 0.4);
  color: var(--gris-texto);
  cursor: not-allowed;
}

.tarjeta-proximonte,
.tarjeta-proximamente {
  opacity: 0.85;
}

/* ===== Cómo funciona ===== */
.como-funciona {
  padding: 4rem 0;
  background-color: var(--azul-marino-claro);
}

.pasos {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  counter-reset: none;
}

.pasos li {
  text-align: center;
}

.paso-numero {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  margin: 0 auto 1rem;
  border-radius: 50%;
  background-color: var(--cobre);
  color: var(--blanco);
  font-weight: 700;
  font-size: 1.2rem;
}

.pasos p {
  color: var(--gris-texto);
}

/* ===== Contacto ===== */
.contacto {
  padding: 4rem 0;
  text-align: center;
}

.contacto p {
  color: var(--gris-texto);
  margin-bottom: 1rem;
}

.contacto .email {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--cobre-claro);
  text-decoration: none;
}

.contacto .email:hover {
  text-decoration: underline;
}

/* ===== Footer ===== */
.site-footer {
  padding: 1.5rem 0;
  text-align: center;
  border-top: 1px solid rgba(184, 115, 51, 0.2);
}

.site-footer p {
  color: var(--gris-texto);
  font-size: 0.85rem;
}

/* ===== Responsive: tablet ===== */
@media (max-width: 900px) {
  .tarjetas {
    grid-template-columns: 1fr;
  }

  .pasos {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ===== Responsive: móvil ===== */
@media (max-width: 480px) {
  .hero {
    padding: 3.5rem 0 2.5rem;
  }

  .hero h1 {
    font-size: 1.9rem;
  }

  .hero-subtitle {
    font-size: 1.05rem;
  }

  .productos h2,
  .como-funciona h2,
  .contacto h2 {
    font-size: 1.6rem;
  }

  .pasos {
    grid-template-columns: 1fr;
  }
}