*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
*:focus-visible{
  outline: none;
}
:root{
  --backColor:#fffffd;
  --textColor:#182c2b;
  --mainColor:#f8ad26;
  --accentColor:#d53839;
  --greyColor:#e9e9e9;
  --succesColor:#b3ff78;
  --errorColor:#ffaaaa;
}

body{
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: poppins;
  font-size: 12px;
  color: var(--textColor);
  background-color: var(--mainColor);
}

.title{
  margin-bottom: 10px;
  font-size: 20px;
  font-weight: bold;
  text-align: center;
  text-transform: uppercase;
}
.header{
  position: relative;
  flex-basis: 100%;
}
.header::before{
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 50%;
  border-bottom: 2px solid var(--textColor);
}
.header__title{
  position: relative;
  display: inline-block;
  padding-left: 7px;
  padding-right: 7px;
  margin-left: 20px;
  font-size: 15px;
  font-weight: bold;
  background-color: var(--backColor);
}
.header__title--small{
  font-size: 12px;
  margin-left: 12px;
  padding-left: 7px;
  padding-right: 7px;
}

.container{
  max-width: 600px;
  padding: 20px 0 20px 50px;
  border-radius: 10px;
  background-color: var(--backColor);
  box-shadow: -3px 4px 8px 0px #000000b0;
  position: relative;
}

.holes{
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 50px;
  border-right: 2px solid var(--accentColor);
}
.holes__item{
  position: absolute;
  left: 15px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid black;
  background-color: var(--mainColor);
  box-shadow: inset -2px 3px 4px -2px #000000b0;
  
}
.holes__item:first-child {top: calc(10% - 10px);}
.holes__item:nth-child(2) {top: calc(50% - 10px);}
.holes__item:last-child {top: calc(90% - 10px);}

.data{
  grid-area: data;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 5px 10px;
}
.data__input{
  flex-basis: calc(50% - 5px);
  padding: 5px;
  border: none;
  border-bottom: 2px solid var(--textColor);
  transition: background-color .3s;
}
.data__input:focus-visible {outline: none; background-color: var(--greyColor);}
.data__input--error, .data__input--error:focus-visible {background-color: var(--errorColor);}
.data__input--succes, .data__input--succes:focus-visible {background-color: var(--succesColor);}
.data__message{
  padding: 2px 10px;
  font-weight: bold;
  text-transform: uppercase;
  margin: 5px 0 15px 0;
}
.data__message--error {background-color: var(--errorColor);}
.data__message--success {background-color: var(--succesColor);}


.content{
  padding: 15px;
  display: grid;
  grid-template-columns: 280px auto;
  grid-template-rows: auto 70px auto;
  grid-template-areas: 
                      "data data"
                      "qrcode buttons"
                      "qrcode options";
  grid-column-gap: 15px;
  grid-row-gap: 10px;
}

.btn-panel{
  grid-area: buttons;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 5px;
  margin-bottom: 10px;
}
.btn-panel__button{
  font-family: 'poppins';
  font-size: 12px;
  font-weight: bold;
  flex-grow: 1;
  padding: 5px 10px;
  border: none;
  border-radius: 5px;
  color: var(--backColor);
  background-color: var(--accentColor);
  cursor: pointer;
  transition: background-color .3s;
}
.btn-panel__download {display: flex;flex-grow: 1;}
.btn-panel__download :first-child {border-radius: 5px 0 0 5px; flex-grow: 4;}
.btn-panel__download :last-child{
  border-radius: 0 5px 5px 0;
  border-left: 2px solid rgba(0, 0, 0, 0.363);
  width: 65px;
  padding-right: 0;
  text-transform: uppercase;
}
.btn-panel__button:disabled {opacity: .4;cursor: default;}

.qr{
  width: 280px;
  grid-area: qrcode;
  height: 280px;
  background-color:var(--greyColor);
  position: relative;
  justify-self: center;
}
.options{
  grid-area: options;
  display: flex;
  flex-direction: column;
  gap: 15px;
}
.field{
  display: flex;
  flex-wrap: wrap;
  border-bottom: 2px solid black;
  padding-bottom: 5px;
  gap: 5px 15px;
}
.field__item{
  display: flex;
  align-items: center;
  flex-grow: 1;
}
.field__item:focus-visible {outline: none;}
.field__item[type="color"] {width: 25px; height: 25px;}
.field__item[type="color"]:disabled {opacity: .3;}
select.field__item {flex-basis: 60%; padding-left: 3px;}

/* :::::: MEDIA QUERIES :::::: */

@media screen and (max-width: 576px){
  .content{
    padding: 0;
    outline: none;
    grid-template-columns: 1fr;
    grid-template-rows: repeat(4, auto);
    grid-template-areas: 
                          "data"
                          "buttons"
                          "qrcode"
                          "options";
  }
  .button {gap: 10px;}
  .qr {margin-bottom: 20px;}
  select.field__item {flex-basis: 75%;}
  .options {gap: 25px;}
  .data__input {flex-basis: 100%;}
}

@media screen and (max-width: 600px) {
  .container{
    width: 100%;
    padding: 20px 15px;
    padding-bottom: 30px;
    border-radius: 0;
    box-shadow: none;
  }
  .holes {display: none;}
}