Адаптивная HTML форма оплаты кредитной картой (JS)

<div class="payment-title">
  <h1>Payment Information</h1>
</div>
<div class="container preload">
  <div class="creditcard">
    <div class="front">
      <div id="ccsingle"></div>
      <svg version="1.1" id="cardfront" xmlns="https://www.w3.org/2000/svg" xmlns:xlink="https://www.w3.org/1999/xlink"
        x="0px" y="0px" viewBox="0 0 750 471" style="enable-background:new 0 0 750 471;" xml:space="preserve">
        <g id="Front">
          <g id="CardBackground">
            <g id="Page-1_1_">
              <g id="amex_1_">
                <path id="Rectangle-1_1_" class="lightcolor grey" d="M40,0h670c22.1,0,40,17.9,40,40v391c0,22.1-17.9,40-40,40H40c-22.1,0-40-17.9-40-40V40
                      C0,17.9,17.9,0,40,0z" />
              </g>
            </g>
            <path class="darkcolor greydark"
              d="M750,431V193.2c-217.6-57.5-556.4-13.5-750,24.9V431c0,22.1,17.9,40,40,40h670C732.1,471,750,453.1,750,431z" />
          </g>
          <text transform="matrix(1 0 0 1 60.106 295.0121)" id="svgnumber" class="st2 st3 st4">0123 4567 8910
            1112</text>
          <text transform="matrix(1 0 0 1 54.1064 428.1723)" id="svgname" class="st2 st5 st6">JOHN DOE</text>
          <text transform="matrix(1 0 0 1 54.1074 389.8793)" class="st7 st5 st8">cardholder name</text>
          <text transform="matrix(1 0 0 1 479.7754 388.8793)" class="st7 st5 st8">expiration</text>
          <text transform="matrix(1 0 0 1 65.1054 241.5)" class="st7 st5 st8">card number</text>
          <g>
            <text transform="matrix(1 0 0 1 574.4219 433.8095)" id="svgexpire" class="st2 st5 st9">01/23</text>
            <text transform="matrix(1 0 0 1 479.3848 417.0097)" class="st2 st10 st11">VALID</text>
            <text transform="matrix(1 0 0 1 479.3848 435.6762)" class="st2 st10 st11">THRU</text>
            <polygon class="st2" points="554.5,421 540.4,414.2 540.4,427.9 		" />
          </g>
          <g id="cchip">
            <g>
              <path class="st2" d="M168.1,143.6H82.9c-10.2,0-18.5-8.3-18.5-18.5V74.9c0-10.2,8.3-18.5,18.5-18.5h85.3
                  c10.2,0,18.5,8.3,18.5,18.5v50.2C186.6,135.3,178.3,143.6,168.1,143.6z" />
            </g>
            <g>
              <g>
                <rect x="82" y="70" class="st12" width="1.5" height="60" />
              </g>
              <g>
                <rect x="167.4" y="70" class="st12" width="1.5" height="60" />
              </g>
              <g>
                <path class="st12" d="M125.5,130.8c-10.2,0-18.5-8.3-18.5-18.5c0-4.6,1.7-8.9,4.7-12.3c-3-3.4-4.7-7.7-4.7-12.3
                      c0-10.2,8.3-18.5,18.5-18.5s18.5,8.3,18.5,18.5c0,4.6-1.7,8.9-4.7,12.3c3,3.4,4.7,7.7,4.7,12.3
                      C143.9,122.5,135.7,130.8,125.5,130.8z M125.5,70.8c-9.3,0-16.9,7.6-16.9,16.9c0,4.4,1.7,8.6,4.8,11.8l0.5,0.5l-0.5,0.5
                      c-3.1,3.2-4.8,7.4-4.8,11.8c0,9.3,7.6,16.9,16.9,16.9s16.9-7.6,16.9-16.9c0-4.4-1.7-8.6-4.8-11.8l-0.5-0.5l0.5-0.5
                      c3.1-3.2,4.8-7.4,4.8-11.8C142.4,78.4,134.8,70.8,125.5,70.8z" />
              </g>
              <g>
                <rect x="82.8" y="82.1" class="st12" width="25.8" height="1.5" />
              </g>
              <g>
                <rect x="82.8" y="117.9" class="st12" width="26.1" height="1.5" />
              </g>
              <g>
                <rect x="142.4" y="82.1" class="st12" width="25.8" height="1.5" />
              </g>
              <g>
                <rect x="142" y="117.9" class="st12" width="26.2" height="1.5" />
              </g>
            </g>
          </g>
        </g>
        <g id="Back">
        </g>
      </svg>
    </div>
    <div class="back">
      <svg version="1.1" id="cardback" xmlns="https://www.w3.org/2000/svg" xmlns:xlink="https://www.w3.org/1999/xlink"
        x="0px" y="0px" viewBox="0 0 750 471" style="enable-background:new 0 0 750 471;" xml:space="preserve">
        <g id="Front">
          <line class="st0" x1="35.3" y1="10.4" x2="36.7" y2="11" />
        </g>
        <g id="Back">
          <g id="Page-1_2_">
            <g id="amex_2_">
              <path id="Rectangle-1_2_" class="darkcolor greydark" d="M40,0h670c22.1,0,40,17.9,40,40v391c0,22.1-17.9,40-40,40H40c-22.1,0-40-17.9-40-40V40
                  C0,17.9,17.9,0,40,0z" />
            </g>
          </g>
          <rect y="61.6" class="st2" width="750" height="78" />
          <g>
            <path class="st3" d="M701.1,249.1H48.9c-3.3,0-6-2.7-6-6v-52.5c0-3.3,2.7-6,6-6h652.1c3.3,0,6,2.7,6,6v52.5
              C707.1,246.4,704.4,249.1,701.1,249.1z" />
            <rect x="42.9" y="198.6" class="st4" width="664.1" height="10.5" />
            <rect x="42.9" y="224.5" class="st4" width="664.1" height="10.5" />
            <path class="st5"
              d="M701.1,184.6H618h-8h-10v64.5h10h8h83.1c3.3,0,6-2.7,6-6v-52.5C707.1,187.3,704.4,184.6,701.1,184.6z" />
          </g>
          <text transform="matrix(1 0 0 1 621.999 227.2734)" id="svgsecurity" class="st6 st7">985</text>
          <g class="st8">
            <text transform="matrix(1 0 0 1 518.083 280.0879)" class="st9 st6 st10">security code</text>
          </g>
          <rect x="58.1" y="378.6" class="st11" width="375.5" height="13.5" />
          <rect x="58.1" y="405.6" class="st11" width="421.7" height="13.5" />
          <text transform="matrix(1 0 0 1 59.5073 228.6099)" id="svgnameback" class="st12 st13">John Doe</text>
        </g>
      </svg>
    </div>
  </div>
</div>
<div class="form-container">
  <div class="field-container">
    <label for="name">Name</label>
    <input id="name" maxlength="20" type="text">
  </div>
  <div class="field-container">
    <label for="cardnumber">Card Number</label><span id="generatecard">generate random</span>
    <input id="cardnumber" type="text" pattern="[0-9]*" inputmode="numeric">
    <svg id="ccicon" class="ccicon" width="750" height="471" viewBox="0 0 750 471" version="1.1"
      xmlns="https://www.w3.org/2000/svg" xmlns:xlink="https://www.w3.org/1999/xlink">
    </svg>
  </div>
  <div class="field-container">
    <label for="expirationdate">Expiration (mm/yy)</label>
    <input id="expirationdate" type="text" pattern="[0-9]*" inputmode="numeric">
  </div>
  <div class="field-container">
    <label for="securitycode">Security Code</label>
    <input id="securitycode" type="text" pattern="[0-9]*" inputmode="numeric">
  </div>
</div>

.payment-title {
  width: 100%;
  text-align: center;
}
.form-container .field-container:first-of-type {
  grid-area: name;
}
.form-container .field-container:nth-of-type(2) {
  grid-area: number;
}
.form-container .field-container:nth-of-type(3) {
  grid-area: expiration;
}
.form-container .field-container:nth-of-type(4) {
  grid-area: security;
}
.field-container input {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
.field-container {
  position: relative;
}
.form-container {
  display: grid;
  grid-column-gap: 10px;
  grid-template-columns: auto auto;
  grid-template-rows: 90px 90px 90px;
  grid-template-areas: "name name""number number""expiration security";
  max-width: 400px;
  padding: 20px;
  color: #707070;
}
label {
  padding-bottom: 5px;
  font-size: 13px;
}
input {
  margin-top: 3px;
  padding: 15px;
  font-size: 16px;
  width: 100%;
  border-radius: 3px;
  border: 1px solid #dcdcdc;
}
.ccicon {
  height: 38px;
  position: absolute;
  right: 6px;
  top: calc(50% - 17px);
  width: 60px;
}
/* CREDIT CARD IMAGE STYLING */
.preload * {
  -webkit-transition: none !important;
  -moz-transition: none !important;
  -ms-transition: none !important;
  -o-transition: none !important;
}
.container {
  width: 100%;
  max-width: 400px;
  max-height: 251px;
  height: 54vw;
  padding: 20px;
}
#ccsingle {
  position: absolute;
  right: 15px;
  top: 20px;
}
#ccsingle svg {
  width: 100px;
  max-height: 60px;
}
.creditcard svg#cardfront,
.creditcard svg#cardback {
  width: 100%;
  -webkit-box-shadow: 1px 5px 6px 0px black;
  box-shadow: 1px 5px 6px 0px black;
  border-radius: 22px;
}
#generatecard{
  cursor: pointer;
  float: right;
  font-size: 12px;
  color: #fff;
  padding: 2px 4px;
  background-color: #909090;
  border-radius: 4px;
  cursor: pointer;
  float:right;
}
/* CHANGEABLE CARD ELEMENTS */
.creditcard .lightcolor,
.creditcard .darkcolor {
  -webkit-transition: fill .5s;
  transition: fill .5s;
}
.creditcard .lightblue {
  fill: #03A9F4;
}
.creditcard .lightbluedark {
  fill: #0288D1;
}
.creditcard .red {
  fill: #ef5350;
}
.creditcard .reddark {
  fill: #d32f2f;
}
.creditcard .purple {
  fill: #ab47bc;
}
.creditcard .purpledark {
  fill: #7b1fa2;
}
.creditcard .cyan {
  fill: #26c6da;
}
.creditcard .cyandark {
  fill: #0097a7;
}
.creditcard .green {
  fill: #66bb6a;
}
.creditcard .greendark {
  fill: #388e3c;
}
.creditcard .lime {
  fill: #d4e157;
}
.creditcard .limedark {
  fill: #afb42b;
}
.creditcard .yellow {
  fill: #ffeb3b;
}
.creditcard .yellowdark {
  fill: #f9a825;
}
.creditcard .orange {
  fill: #ff9800;
}
.creditcard .orangedark {
  fill: #ef6c00;
}
.creditcard .grey {
  fill: #bdbdbd;
}
.creditcard .greydark {
  fill: #616161;
}
/* FRONT OF CARD */
#svgname {
  text-transform: uppercase;
}
#cardfront .st2 {
  fill: #FFFFFF;
}
#cardfront .st3 {
  font-family: 'Source Code Pro', monospace;
  font-weight: 600;
}
#cardfront .st4 {
  font-size: 54.7817px;
}
#cardfront .st5 {
  font-family: 'Source Code Pro', monospace;
  font-weight: 400;
}
#cardfront .st6 {
  font-size: 33.1112px;
}
#cardfront .st7 {
  opacity: 0.6;
  fill: #FFFFFF;
}
#cardfront .st8 {
  font-size: 24px;
}
#cardfront .st9 {
  font-size: 36.5498px;
}
#cardfront .st10 {
  font-family: 'Source Code Pro', monospace;
  font-weight: 300;
}
#cardfront .st11 {
  font-size: 16.1716px;
}
#cardfront .st12 {
  fill: #4C4C4C;
}
/* BACK OF CARD */
#cardback .st0 {
  fill: none;
  stroke: #0F0F0F;
  stroke-miterlimit: 10;
}
#cardback .st2 {
  fill: #111111;
}
#cardback .st3 {
  fill: #F2F2F2;
}
#cardback .st4 {
  fill: #D8D2DB;
}
#cardback .st5 {
  fill: #C4C4C4;
}
#cardback .st6 {
  font-family: 'Source Code Pro', monospace;
  font-weight: 400;
}
#cardback .st7 {
  font-size: 27px;
}
#cardback .st8 {
  opacity: 0.6;
}
#cardback .st9 {
  fill: #FFFFFF;
}
#cardback .st10 {
  font-size: 24px;
}
#cardback .st11 {
  fill: #EAEAEA;
}
#cardback .st12 {
  font-family: 'Rock Salt', cursive;
}
#cardback .st13 {
  font-size: 37.769px;
}
/* FLIP ANIMATION */
.container {
  perspective: 1000px;
}
.creditcard {
  width: 100%;
  max-width: 400px;
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  transition: -webkit-transform 0.6s;
  -webkit-transition: -webkit-transform 0.6s;
  transition: transform 0.6s;
  transition: transform 0.6s, -webkit-transform 0.6s;
  cursor: pointer;
}
.creditcard .front,
.creditcard .back {
  position: absolute;
  width: 100%;
  max-width: 400px;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  -webkit-font-smoothing: antialiased;
  color: #47525d;
}
.creditcard .back {
  -webkit-transform: rotateY(180deg);
  transform: rotateY(180deg);
}
.creditcard.flipped {
  -webkit-transform: rotateY(180deg);
  transform: rotateY(180deg);
}

window.onload = function () {
  const name = document.getElementById('name');
  const cardnumber = document.getElementById('cardnumber');
  const expirationdate = document.getElementById('expirationdate');
  const securitycode = document.getElementById('securitycode');
  const output = document.getElementById('output');
  const ccicon = document.getElementById('ccicon');
  const ccsingle = document.getElementById('ccsingle');
  const generatecard = document.getElementById('generatecard');
  let cctype = null;
  //Mask the Credit Card Number Input
  var cardnumber_mask = new IMask(cardnumber, {
    mask: [{
        mask: '0000 000000 00000',
        regex: '^3[47]\\d{0,13}',
        cardtype: 'american express'
      },
      {
        mask: '0000 0000 0000 0000',
        regex: '^(?:6011|65\\d{0,2}|64[4-9]\\d?)\\d{0,12}',
        cardtype: 'discover'
      },
      {
        mask: '0000 000000 0000',
        regex: '^3(?:0([0-5]|9)|[689]\\d?)\\d{0,11}',
        cardtype: 'diners'
      },
      {
        mask: '0000 0000 0000 0000',
        regex: '^(5[1-5]\\d{0,2}|22[2-9]\\d{0,1}|2[3-7]\\d{0,2})\\d{0,12}',
        cardtype: 'mastercard'
      },
      // {
      //     mask: '0000-0000-0000-0000',
      //     regex: '^(5019|4175|4571)\\d{0,12}',
      //     cardtype: 'dankort'
      // },
      // {
      //     mask: '0000-0000-0000-0000',
      //     regex: '^63[7-9]\\d{0,13}',
      //     cardtype: 'instapayment'
      // },
      {
        mask: '0000 000000 00000',
        regex: '^(?:2131|1800)\\d{0,11}',
        cardtype: 'jcb15'
      },
      {
        mask: '0000 0000 0000 0000',
        regex: '^(?:35\\d{0,2})\\d{0,12}',
        cardtype: 'jcb'
      },
      {
        mask: '0000 0000 0000 0000',
        regex: '^(?:5[0678]\\d{0,2}|6304|67\\d{0,2})\\d{0,12}',
        cardtype: 'maestro'
      },
      // {
      //     mask: '0000-0000-0000-0000',
      //     regex: '^220[0-4]\\d{0,12}',
      //     cardtype: 'mir'
      // },
      {
        mask: '0000 0000 0000 0000',
        regex: '^4\\d{0,15}',
        cardtype: 'visa'
      },
      {
        mask: '0000 0000 0000 0000',
        regex: '^62\\d{0,14}',
        cardtype: 'unionpay'
      },
      {
        mask: '0000 0000 0000 0000',
        cardtype: 'Unknown'
      }
    ],
    dispatch: function (appended, dynamicMasked) {
      var number = (dynamicMasked.value + appended).replace(/\D/g, '');
      for (var i = 0; i < dynamicMasked.compiledMasks.length; i++) {
        let re = new RegExp(dynamicMasked.compiledMasks[i].regex);
        if (number.match(re) != null) {
          return dynamicMasked.compiledMasks[i];
        }
      }
    }
  });
  //Mask the Expiration Date
  var expirationdate_mask = new IMask(expirationdate, {
    mask: 'MM{/}YY',
    groups: {
      YY: new IMask.MaskedPattern.Group.Range([0, 99]),
      MM: new IMask.MaskedPattern.Group.Range([1, 12]),
    }
  });
  //Mask the security code
  var securitycode_mask = new IMask(securitycode, {
    mask: '0000',
  });
  // SVGICONS
  let amex = `      `;
  let visa = `         `;
  let diners = `       `;
  let discover = `      `;
  let jcb = `                      `;
  let maestro = `            `;
  let mastercard = `            `;
  let unionpay = `            `;
  let amex_single = ``;
  let visa_single = ``;
  let diners_single = ``;
  let discover_single = ``;
  let jcb_single = ``;
  let maestro_single = ``;
  let mastercard_single = ``;
  let unionpay_single = ``;
  //define the color swap function
  const swapColor = function (basecolor) {
    document.querySelectorAll('.lightcolor')
      .forEach(function (input) {
        input.setAttribute('class', '');
        input.setAttribute('class', 'lightcolor ' + basecolor);
      });
    document.querySelectorAll('.darkcolor')
      .forEach(function (input) {
        input.setAttribute('class', '');
        input.setAttribute('class', 'darkcolor ' + basecolor + 'dark');
      });
  };
  //pop in the appropriate card icon when detected
  cardnumber_mask.on("accept", function () {
    console.log(cardnumber_mask.masked.currentMask.cardtype);
    switch (cardnumber_mask.masked.currentMask.cardtype) {
      case 'american express':
        ccicon.innerHTML = amex;
        ccsingle.innerHTML = amex_single;
        swapColor('green');
        break;
      case 'visa':
        ccicon.innerHTML = visa;
        ccsingle.innerHTML = visa_single;
        swapColor('lime');
        break;
      case 'diners':
        ccicon.innerHTML = diners;
        ccsingle.innerHTML = diners_single;
        swapColor('orange');
        break;
      case 'discover':
        ccicon.innerHTML = discover;
        ccsingle.innerHTML = discover_single;
        swapColor('purple');
        break;
      case ('jcb' || 'jcb15'):
        ccicon.innerHTML = jcb;
        ccsingle.innerHTML = jcb_single;
        swapColor('red');
        break;
      case 'maestro':
        ccicon.innerHTML = maestro;
        ccsingle.innerHTML = maestro_single;
        swapColor('yellow');
        break;
      case 'mastercard':
        ccicon.innerHTML = mastercard;
        ccsingle.innerHTML = mastercard_single;
        swapColor('lightblue');
        break;
      case 'unionpay':
        ccicon.innerHTML = unionpay;
        ccsingle.innerHTML = unionpay_single;
        swapColor('cyan');
        break;
      default:
        ccicon.innerHTML = '';
        ccsingle.innerHTML = '';
        swapColor('grey');
        break;
    }
  });
  //Generate random card number from list of known test numbers
  const randomCard = function () {
    let testCards = [
      '4000056655665556',
      '5200828282828210',
      '371449635398431',
      '6011000990139424',
      '30569309025904',
      '3566002020360505',
      '6200000000000005',
      '6759649826438453',
    ];
    let randomNumber = Math.floor(Math.random() * testCards.length);
    cardnumber_mask.unmaskedValue = testCards[randomNumber];
  }
  generatecard.addEventListener('click', function () {
    randomCard();
  });
  // CREDIT CARD IMAGE JS
  document.querySelector('.preload').classList.remove('preload');
  document.querySelector('.creditcard').addEventListener('click', function () {
    if (this.classList.contains('flipped')) {
      this.classList.remove('flipped');
    } else {
      this.classList.add('flipped');
    }
  })
  //On Input Change Events
  name.addEventListener('input', function () {
    if (name.value.length == 0) {
      document.getElementById('svgname').innerHTML = 'John Doe';
      document.getElementById('svgnameback').innerHTML = 'John Doe';
    } else {
      document.getElementById('svgname').innerHTML = this.value;
      document.getElementById('svgnameback').innerHTML = this.value;
    }
  });
  cardnumber_mask.on('accept', function () {
    if (cardnumber_mask.value.length == 0) {
      document.getElementById('svgnumber').innerHTML = '0123 4567 8910 1112';
    } else {
      document.getElementById('svgnumber').innerHTML = cardnumber_mask.value;
    }
  });
  expirationdate_mask.on('accept', function () {
    if (expirationdate_mask.value.length == 0) {
      document.getElementById('svgexpire').innerHTML = '01/23';
    } else {
      document.getElementById('svgexpire').innerHTML = expirationdate_mask.value;
    }
  });
  securitycode_mask.on('accept', function () {
    if (securitycode_mask.value.length == 0) {
      document.getElementById('svgsecurity').innerHTML = '985';
    } else {
      document.getElementById('svgsecurity').innerHTML = securitycode_mask.value;
    }
  });
  //On Focus Events
  name.addEventListener('focus', function () {
    document.querySelector('.creditcard').classList.remove('flipped');
  });
  cardnumber.addEventListener('focus', function () {
    document.querySelector('.creditcard').classList.remove('flipped');
  });
  expirationdate.addEventListener('focus', function () {
    document.querySelector('.creditcard').classList.remove('flipped');
  });
  securitycode.addEventListener('focus', function () {
    document.querySelector('.creditcard').classList.add('flipped');
  });
};