* {
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column; 
}

main {
  flex: 1; 
  padding: 20px;
}

nav {
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center; 
  background-color: #000000; 
  padding: 10px 20px;
  padding-top: 0;
  padding-bottom: 0;
}

.form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 370px;
    background-color: #fff;
    padding: 20px;
    border-radius: 20px;
    position: relative;
    border: 2px royalblue;
    box-shadow: rgba(0, 0, 0, 0.4) 0px 2px 4px, rgba(0, 0, 0, 0.3) 0px 7px 13px -3px, rgba(0, 0, 0, 0.2) 0px -3px 0px inset;
    margin: 75px auto 50px;
    position: relative;
    
  }
  
  .title {
    font-size: 28px;
    color: rgb(253, 101, 0);;
    font-weight: 600;
    letter-spacing: -1px;
    position: relative;
    display: flex;
    align-items: center;
    padding-left: 30px;
  }
  
  .title::before,.title::after {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    border-radius: 50%;
    left: 0px;
    background-color: rgb(253, 101, 0);
  }
  
  .title::before {
    width: 18px;
    height: 18px;
    background-color: rgb(253, 101, 0);;
  }
  
  .title::after {
    width: 18px;
    height: 18px;
    animation: pulse 1s linear infinite;
  }
  
  .message, .signin {
    color: rgba(88, 87, 87, 0.822);
    font-size: 14px;
  }
  
  .signin {
    text-align: center;
    
  }
  
  .signin a {
    color: rgb(253, 101, 0);;
  }
  
  .signin a:hover {
    text-decoration: underline rgb(253, 101, 0);;
  }
  
  .flex {
    display: flex;
    width: 97%;  
}
  
  .form label {
    position: relative;

  }
  
  .form label .input {
    width: 94%;
    padding: 10px 10px 20px 10px;
    outline: 0;
    border: 1px solid rgba(105, 105, 105, 0.397);
    border-radius: 10px;
    
  }
  
  .form label .input + span {
    position: absolute;
    left: 10px;
    top: 15px;
    color: grey;
    font-size: 0.9em;
    cursor: text;
    transition: 0.3s ease;
  }
  
  .form label .input:placeholder-shown + span {
    top: 15px;
    font-size: 0.9em;
  }
  
  .form label .input:focus + span,.form label .input:valid + span {
    top: 0px;
    font-size: 0.7em;
    font-weight: 600;
  }
  
  .form label .input:valid + span {
    color: green;
  }
  
  .submit {
    border: none;
    outline: none;
    background-color: rgb(253, 101, 0);;
    padding: 10px;
    border-radius: 10px;
    color: #fff;
    font-size: 16px;
    transform: .3s ease;
  }
  
  .submit:hover {
    background-color: rgb(253, 143, 0);;
    cursor: pointer;
  }
  
  @keyframes pulse {
    from {
      transform: scale(0.9);
      opacity: 1;
    }
  
    to {
      transform: scale(1.8);
      opacity: 0;
    }
  }

  .cl-checkbox {
    position: relative;
    display: inline-block;
   }
   
   /* Input */
   .cl-checkbox > input {
    appearance: none;
    -moz-appearance: none;
    -webkit-appearance: none;
    z-index: -1;
    position: absolute;
    left: -10px;
    top: -8px;
    display: block;
    margin: 0;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    background-color: grey;
    box-shadow: none;
    outline: none;
    opacity: 0;
    transform: scale(1);
    pointer-events: none;
    transition: opacity 0.3s, transform 0.2s;
   }
   
 
   .cl-checkbox > span {
    display: inline-block;
    width: 100%;
    cursor: pointer;
   }
   
 
   .cl-checkbox > span::before {
    content: "";
    display: inline-block;
    box-sizing: border-box;
    margin: 3px 11px 3px 1px;
    border: solid 2px;
   
    border-color: grey;
    border-radius: 2px;
    width: 18px;
    height: 18px;
    vertical-align: top;
    transition: border-color 0.2s, background-color 0.2s;
   }
   
  
   .cl-checkbox > span::after {
    content: "";
    display: block;
    position: absolute;
    top: 3px;
    left: 1px;
    width: 10px;
    height: 5px;
    border: solid 2px transparent;
    border-right: none;
    border-top: none;
    transform: translate(3px, 4px) rotate(-45deg);
   }
   

   .cl-checkbox > input:checked,
   .cl-checkbox > input:indeterminate {
    background-color: #fff;
   }
   
   .cl-checkbox > input:checked + span::before,
   .cl-checkbox > input:indeterminate + span::before {
    border-color: rgb(253, 101, 0);
    background-color: rgb(253, 101, 0);
   }
   
   .cl-checkbox > input:checked + span::after,
   .cl-checkbox > input:indeterminate + span::after {
    border-color: #fff;
   }
   
   .cl-checkbox > input:indeterminate + span::after {
    border-left: none;
    transform: translate(4px, 3px);
   }
   
 
   .cl-checkbox:hover > input {
    opacity: 0.04;
   }
   
   .cl-checkbox > input:focus {
    opacity: 0.12;
   }
   
   .cl-checkbox:hover > input:focus {
    opacity: 0.16;
   }
   

   .cl-checkbox > input:active {
    opacity: 1;
    transform: scale(0);
    transition: transform 0s, opacity 0s;
   }
   
   .cl-checkbox > input:active + span::before {
    border-color: #ffffff;
   }
   
   .cl-checkbox > input:checked:active + span::before {
    border-color: transparent;
    background-color: grey;
   }
   

   .cl-checkbox > input:disabled {
    opacity: 0;
   }
   
   .cl-checkbox > input:disabled + span {
    color: grey;
    cursor: initial;
   }
   
   .cl-checkbox > input:disabled + span::before {
    border-color: currentColor;
   }
   
   .cl-checkbox > input:checked:disabled + span::before,
   .cl-checkbox > input:indeterminate:disabled + span::before {
    border-color: transparent;
    background-color: currentColor;
   }

footer {
    background-color: #000000;
    color: white;
    text-align: center;
    padding: 20px;
}