:root {
      --azul: #0b5ed7;
      --verde: #2ea44f;
      --fondo: #f2f7ff;
      --texto: #0f172a;
      --gris: #475569;
      --blanco: #ffffff;
    }

    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      font-family: Arial, Helvetica, sans-serif;
      background: var(--fondo);
      color: var(--texto);
      height: 100vh;
	  height: 100dvh;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }


.contenedor {

  width: 100%;
  max-width: 500px;
  height: 100vh;
  height: 100dvh;
  max-height: 100vh;
  max-height: 100dvh;

  padding: 20px;


  background: var(--blanco);
  border-radius: 18px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.12);

  display: flex;
  flex-direction: column;
}

.contenido-principal {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

    h1 {
      font-size: 28px;
      text-align: center;
      margin-bottom: 10px;
      color: var(--azul);
    }

    .descripcion {
      font-size: 18px;
      text-align: center;
      color: var(--gris);
      margin-bottom: 16px;
    }

    .paso {
      margin-bottom: 16px;
    }

    .paso-numero {
      font-size: 20px;
      font-weight: bold;
      margin-bottom: 6px;
    }

    label {
      font-size: 18px;
    }

    select {
      width: 100%;
      margin-top: 8px;
      padding: 18px;
      font-size: 18px;
      border-radius: 14px;
      border: 2px solid #cbd5e1;
    }

    select:disabled {
      background: #f1f5f9;
    }

    button {
      width: 100%;
      padding: 20px;
      font-size: 22px;
      font-weight: bold;
      margin-top: 16px;
      border-radius: 16px;
      border: none;
      background: var(--verde);
      color: white;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    }

    button:disabled {
      background: #94a3b8;
      box-shadow: none;
      cursor: not-allowed;
    }

    .info {
      margin-top: 16px;
      font-size: 16px;
      color: var(--gris);
      text-align: center;
      line-height: 1.6;
    }

    .info span {
      display: block;
      margin-top: 6px;
    }

.anuncio {
  margin-top: 12px;
  padding: 10px;
  font-size: 14px;
  line-height: 1.4;
}

.anuncio-label {
  display: block;
  font-size: 13px;
  color: #64748b;
  margin-bottom: 6px;
}

@media (max-height: 600px) {
  h1 {
    font-size: 22px;
  }

  .paso-numero {
    font-size: 18px;
  }

  button {
    padding: 14px;
    font-size: 18px;
  }

  .anuncio {
    font-size: 13px;
  }
}


select,
button {
  touch-action: manipulation;
}