* {
    box-sizing: border-box;
  }
  
  body.color-1 {
    --primary: #dfd10e;
  }
  
  body.color-2 {
    --primary: #ff000c;
  }
  
  body.color-3 {
    --primary: #1cd49d;
  }
  
  body.color-4 {
    --primary: #08bbd3;
  }
  
  body.color-5 {
    --primary: #e98f08;
  }
  
  body.color-6 {
    --primary: #8013d8;
  }
  
  body.color-7 {
    --primary: #13ce13;
  }
  
  body.color-8 {
    --primary: #df1473;
  }

  body.bg_light {
    background: #fefefe;
    color: black;
    --secondary: #ebebeb;
    --secondary-light: #f9f9f9;
  }

  body.bg_dark {
    background: #1b1d1c;
    color: white;
    --secondary: #262727;
    --secondary-light: #1b1d1d;
    .hw-items>a {
      color: white;
    }
  }

  /* Style for the switch container in the top-right corner */
  .switch-container {
    position: fixed;
    top: 10px;
    right: 10px;
    z-index: 1000;
  }

  /* Flick switch styling */
  .flick-switch {
    position: relative;
    width: 60px;
    height: 30px;
    background: #ccc;
    border-radius: 15px;
    cursor: pointer;
    box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.2);
    transition: background 0.3s ease;
  }

  .flick-switch:before {
    content: "";
    position: absolute;
    top: 3px;
    left: 3px;
    width: 24px;
    height: 24px;
    background: white;
    border-radius: 50%;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    transition: left 0.3s ease;
  }

  .flick-switch.active {
    background: var(--primary);
  }

  .flick-switch.active:before {
    left: 33px;
  }

  @media (max-width: 700px){
    .container>h1 {
      margin-top: 60px;
    }
  }
  
  body {
    margin: 0;
    padding: 0;
    background: #1b1d1c;
    font-family: 'Montserrat', sans-serif;
  
    min-height: 100vh;
    display: flex;
    flex-flow: column nowrap;
    justify-content: space-between;
    --secondary: #262727;
    --secondary-light: #1b1d1d;
    --background-color: #1b1d1c;
  }
  
  .hidden {
    display: none !important;
  }
  
  .container {
    width: 100%;
    max-width: 1000px;
  
    text-align: left;
    margin: 0 auto;
  
    display: flex;
    flex: 1;
  
    flex-flow: row wrap;
    justify-content: space-between;
    align-items: start;
    align-content: start;
  
  }
  
  .container>h1 {
    text-align: center;
    flex-basis: 100%;
    font-size: 3rem;
  }
  
  .container h1:after {
    content: ' ';
  
    margin: auto;
    display: block;
  
    margin-top: 10px;
    height: 3.5px;
    width: 45%;
    background: var(--primary);
  }
  
  .container>h3 {
    text-align: center;
    margin: 0 auto 20px auto;
  }
  
  .screenshots {
    width: 100%;
  }
  
  .screenshots img {
    object-fit: cover;
    max-width: 100%;
  
    cursor: pointer;
  }
  
  .screenshots img:active {
    width: 100vw;
    height: 100vh;
    object-fit: contain;
    position: fixed;
    top: 0;
    left: 0;
  
    z-index: 100;
  }
  
  .inputs {
    flex-basis: 49%;
    display: flex;
    flex-flow: row wrap;
    justify-content: flex-end;
  
    padding: 10px 20px;
  
    max-width: 50%;
    word-break: break-all;
  }
  
  .inputs>h3 {
    flex-basis: 100%;
    text-align: left;
    position: relative;
  }
  
  .inputs>h3:after {
    content: ' ';
  
    position: absolute;
    bottom: -7px;
    left: 0;
  
    height: 2px;
    width: 20%;
    background: var(--primary);
  }
  
  .inputs .input {
    margin: 10px;
    flex-basis: 100%;
    display: flex;
    align-items: center;
  }
  
  .inputs .input span {
    flex: 1;
    display: inline-block;
  
    font-size: 1.1rem;
    min-width: 110px;
  }
  
  .inputs .input input {
    flex: 3;
  
    font-size: 1rem;
  
    margin-left: 10px;
    padding: 11px 16px;
    line-height: 1.4rem;
    background-color: var(--secondary);
    border-radius: 4px;
  
    border: 2px solid transparent;
  
    outline: none;
  
    transition: all 120ms ease-in-out;
    color: var(--primary);
  }
  
  .inputs .input input::placeholder {
    color: var(--primary);
  }
  
  .inputs .input input:focus {
    border: 2px solid var(--primary);
    background-color: var(--secondary-light);
  }
  
  .inputs .calculate-button {
    padding: 10px 17px;
    margin: 10px 10px 0 0;
  
    font-size: 1.1rem;
  
    border: none;
    outline: 0;
  
    cursor: pointer;
  
    color: var(--secondary-light);
    border-radius: 2px;
    background-color: var(--primary);
  
    border: 2.5px solid transparent;
    transition: all 120ms ease-in-out;
  }
  
  .inputs .calculate-button:hover {
    border: 2.5px solid var(--primary);
    color: var(--primary);
    background-color: var(--secondary-light);
    transform: scale(1.05);
  }
  
  .inputs .calculate-button:active {
    transform: scale(.95);
  }
  
  .answers {
    flex-basis: 49%;
  
    display: flex;
    flex-flow: row wrap;
    align-content: flex-start;
    align-items: center;
  
    justify-content: center;
  
    vertical-align: middle;
  
    padding: 10px;
  
    max-width: 50%;
    word-break: break-all;
  }
  
  .answers>h3 {
    flex-basis: 100%;
    text-align: left;
    position: relative;
  }
  
  .answers>h3:after {
    content: ' ';
  
    position: absolute;
    bottom: -7px;
    left: 0;
  
    height: 2px;
    width: 20%;
    background: var(--primary);
  }
  
  .answers>div {
    font-size: 1.1rem;
    flex: 1 0 100%;
    padding: 23px 10px;
    font-style: italic;
  }
  
  .answers>div>span {
    font-style: normal;
    margin-left: 5px;
    letter-spacing: 0.05rem;
  }
  
  .buttons {
    width: 100%;
    max-width: 1000px;
  
    margin-top: 30px;
  
    align-self: center;
    display: flex;
    justify-content: space-between;
    flex-flow: row;
  
    position: relative;
  
    padding: 0 20px;
  }
  
  .buttons.reverse {
    flex-flow: row-reverse;
  }
  
  .buttons>a {
    margin-top: 40px;
    display: inline-block;
    text-decoration: none;
    position: relative;
  
    color: var(--primary);
  
    transition: all 170ms ease-in-out;
  }
  
  .buttons>a.button-middle {
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
  }
  
  .buttons>a:before {
    content: ' ';
    display: block;
    bottom: -2px;
    position: absolute;
    height: 1.5px;
    width: 100%;
    background-color: transparent;
  
    transition: all 70ms ease-in-out;
  }
  
  .buttons>a:hover:before {
    background-color: var(--primary);
  }
  
  .buttons>a.button-previous:after,
  .buttons>a.button-next:after {
    color: var(--primary);
  
    display: inline-block;
    position: absolute;
    top: 0;
  }
  
  .buttons>a.button-previous:after {
    left: -13px;
    content: '<';
  }
  
  .buttons>a.button-next:after {
    right: -13px;
    content: '>';
  }
  
  .hw-items {
    flex-basis: 100%;
    display: flex;
  
    flex-flow: row wrap;
  
    justify-content: center;
  }
  
  .hw-items>a {
    display: block;
    text-decoration: none;
  
    flex-basis: 28%;
  
    padding: 12px;
    margin: 14px 2%;
  
    text-align: center;
  
    color: var(--secondary-light);
    background-color: var(--primary);
    border: 2.5px solid transparent;
  
    transition: all 120ms ease-in-out;
    cursor: pointer;
  }
  
  .hw-items>a:hover {
    border: 2.5px solid var(--primary);
    color: var(--primary);
    background-color: var(--secondary-light);
    transform: scale(1.05);
  }
  
  .hw-items>a:active {
    transform: scale(0.95);
  }
  
  .hws {
    flex-basis: 100%;
    display: flex;
  
    flex-flow: row wrap;
  
    justify-content: center;
  }
.video-responsive{
overflow:hidden;
padding-bottom:56.25%;
position:relative;
height:0;
}
.video-responsive iframe{
left:0;
top:0;
height:100%;
width:100%;
position:absolute;
}
  .footer {
    text-align: center;
  
    margin-top: 30px;
  
    padding: 11px 0;
    background: var(--secondary);
    color: #454545;
  }
  
  @media screen and (max-width: 767px) {
  
    .inputs,
    .answers {
      flex-basis: 100%;
      max-width: 100%;
    }
  }