index.css

*{
  margin: 0;
  padding: 0;
  outline: none;
  border: none;
  text-decoration: none;
  box-sizing: border-box;
}

body{
  background-color: #08061a;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
}

.container {
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

.wrapper{
  width: 330px;
  height: auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: white;
}

/* Data Box Styling */
.wrapper .data{
  width: 100%;
  display: flex;
  flex-direction: column;
}

.wrapper .data h2{
  text-align: center;
  color: #ffffff52;
}

.wrapper .data_box{
  display: flex;
  justify-content: space-between;
  margin: 25px 0;
  background-color: #24232a;
  padding: 15px;
  border-radius: 5px 5px 0px 0px;
}

.wrapper .data_box input {
  background-color: transparent;
  border: none;
  color: #ffffff59;
  cursor: context-menu;
}

.wrapper .data_box input::selection {
  background: rgba(128, 128, 128, 0.233);
}

.wrapper .data_box input:focus-visible{
  outline: none;
}

.wrapper .data_box button{
  border: none;
  background: transparent;
  color: #5daf82;
  font-size: 15px;
  cursor: pointer;
}

/* Form and Inputs Styling */
.wrapper form{
  width: 100%;
  padding: 15px;
  background-color: #24232a;
}

.wrapper form .character_length{
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 15px;
}

.wrapper form .character_length h4{
  display: inline-block;
  opacity: 0.7;
}

.wrapper form .character_length h2{
  display: inline-block;
  color: #5daf82;
}

.wrapper form input[type="range"] {
  -webkit-appearance: none;
  appearance: none; 
  width: 100%;
  cursor: pointer;
  outline: none;
  height: 6px;
  background: #18171f;
  margin-bottom: 20px;
}

.wrapper form input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none; 
  height: 20px;
  width: 20px;
  background-color: #18171f;
  border-radius: 50%;
  border: 2px solid #5daf82;
  transition: .2s ease-in-out;
}

.wrapper form input[type="range"]::-moz-range-thumb {
  height: 15px;
  width: 15px;
  background-color: #f50;
  border-radius: 50%;
  border: none;
  transition: .2s ease-in-out;
}

.wrapper form .inputs{
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-left: 5px;
  margin-bottom: 15px;
}

.wrapper form .inputs .inputs_data{
  display: flex;
  margin-bottom: 10px;
}

.wrapper form .inputs .inputs_data input{
  margin-right: 10px;
  cursor: pointer;
}

.wrapper form .inputs .inputs_data label{
  opacity: 0.6;
  font-size: 15px;
}

/* Strength Styling */
.wrapper form .strength{
  display: flex;
  background-color: #18171f;
  height: 50px;
  align-items: center;
  padding: 0 10px;
  margin-bottom: 20px;
  justify-content: space-between;
}

.wrapper form .strength h4{
  opacity: 0.7;;
}

.wrapper form .strength .spans_container {
  display: flex;
}

.wrapper form .strength .spans_container h3{
  opacity: 0.9;
  margin-right: 7px;
}

.wrapper form .strength .spans_container span{
  width: 6px;
  height: 20px;
  background-color: #969696;
  margin-right: 5px;
}

.wrapper form .strength .spans_container span.bad{
  background-color: red;
  opacity: 0.4;
}

.wrapper form .strength .spans_container span.weak{
  background-color: orange;
  opacity: 0.6;
}

.wrapper form .strength .spans_container span.good{
  background-color: green;
  opacity: 0.8;
}

.wrapper form .strength .spans_container span.perfect{
  background-color: lime;
  opacity: 1;
}

.wrapper form button {
  background-color: #5daf82;
  border: none;
  width: 100%;
  padding: 13px;
  color: black;
  cursor: pointer;
  font-weight: 700;
}

.wrapper form button:hover{
  background-color: #3f9064;
  width: 100%;
  padding: 13px;
  cursor: pointer;
}

.wrapper form button:active {
  background: #51ce89;
  color: #3f9064;
}

footer {
  background-color: #24232a;
  width: 100%;
  text-align: center;
  margin-top: 15px;
  padding: 1em 0;
  border-radius: 0px 0px 5px 5px;
}

footer small {
  color: gray;
  font-size: 13px;
}

/* Media Queries */

@media screen and (max-width: 915px) {
  
  .container {
    overflow-y: scroll;
    flex-direction: row;
    padding: 1em 0;
  }

}

@media screen and (max-width: 320px) {
  
  .wrapper {
    width: 300px;
  }

}

@media screen and (max-width: 280px) {
  
  .wrapper {
    width: 260px;
  }

}

@media screen and (max-width: 240px) {
  
  .wrapper {
    width: 230px;
  }

}