.fancybox {
  --fb-num-boxes: 3;
  --fb-box-height: 12em;
  --fb-tri-size: 2em;
  --fb-tri-clear: -1.5em;
  --fb-tri-color: var(--color-dark);/*#444;*/
  --fb-tri-color-disabled: #ddd;
  --fb-item-margin: calc(2 * var(--fb-tri-size) + var(--fb-tri-clear));
  --fb-item-padding: 0.5em;
  --fb-item-inner-padding: 0.75em;
  --fb-item-color-bg: color-mix(in srgb, var(--color-dark), var(--color-lite) 90%);
  --fb-item-color-border: color-mix(in srgb, var(--color-dark), var(--color-lite) 50%);
  --fb-radio-size: 1em;
  --fb-radio-color: var(--color-lessdark); /*#888;*/
  position: relative;
  height: calc(var(--fb-box-height) + var(--fb-radio-size) + 2 * var(--fb-item-padding));
}

@media only screen and (max-width: 840px) {
  .fancybox {
    --fb-num-boxes: 2;
  }
}

@media only screen and (max-width: 560px) {
  .fancybox {
    --fb-num-boxes: 1;
  }
}

.fancybox > input {display: none;}


.fancybox > [type="radio"]:nth-child(2):checked ~ .fbitems > div {margin-left: calc(-100% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(3):checked ~ .fbitems > div {margin-left: calc(-200% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(4):checked ~ .fbitems > div {margin-left: calc(-300% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(5):checked ~ .fbitems > div {margin-left: calc(-400% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(6):checked ~ .fbitems > div {margin-left: calc(-500% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(7):checked ~ .fbitems > div {margin-left: calc(-600% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(8):checked ~ .fbitems > div {margin-left: calc(-700% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(9):checked ~ .fbitems > div {margin-left: calc(-800% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(10):checked ~ .fbitems > div {margin-left: calc(-900% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(11):checked ~ .fbitems > div {margin-left: calc(-1000% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(12):checked ~ .fbitems > div {margin-left: calc(-1100% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(13):checked ~ .fbitems > div {margin-left: calc(-1200% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(14):checked ~ .fbitems > div {margin-left: calc(-1300% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(15):checked ~ .fbitems > div {margin-left: calc(-1400% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(16):checked ~ .fbitems > div {margin-left: calc(-1500% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(17):checked ~ .fbitems > div {margin-left: calc(-1600% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(18):checked ~ .fbitems > div {margin-left: calc(-1700% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(19):checked ~ .fbitems > div {margin-left: calc(-1800% / var(--fb-num-boxes));}
.fancybox > [type="radio"]:nth-child(20):checked ~ .fbitems > div {margin-left: calc(-1900% / var(--fb-num-boxes));}


.fbitems {
  overflow: hidden;
  white-space: nowrap;
  margin-left: var(--fb-item-margin);
  margin-right: var(--fb-item-margin);
}

.fbitems > div {
  width: 100%;
}

.fbitems > div > div {
  display: inline-block;
  vertical-align: top;
  width: calc(100% / var(--fb-num-boxes) - 2 * var(--fb-item-padding));
  height: calc(var(--fb-box-height) - 2 * var(--fb-item-padding));
  padding: var(--fb-item-padding);
}

.fbbox {
  background: var(--fb-item-color-bg);
  height: calc(100% - 2 * var(--fb-item-inner-padding));
  padding: var(--fb-item-inner-padding);
  border: 1px solid var(--fb-item-color-border);
  overflow-y: auto;
  white-space: normal;
  position: relative;
}

a > .fbbox {
  color: #fff;
  text-decoration: underline;
  background: var(--color-dark);
  background-size: cover;
  transition: 0.25s;
  border: none;
}

a:hover > .fbbox {
  font-size: 1.125em;
}

.fbftop, .fbfbottom, .fbfcenter {position: absolute;}
.fbftop {top: var(--fb-item-inner-padding);}
.fbfbottom {bottom: var(--fb-item-inner-padding);}
.fbfcenter {top: 50%; transform: translate(0, -50%);}


.fbitems, .fbitems > div {
  transition: 0.25s;
}



.fbgoleft, .fbgoright {
  position: absolute;
  top: calc(var(--fb-box-height) / 2 - var(--fb-tri-size));
}

.fbgoleft {left: 0;}
.fbgoright {right: 0;}

.fbgoleft > label, .fbgoright > label {
  display: inline-block;
  width: 0; 
  height: 0; 
  border: var(--fb-tri-size) solid transparent;
  cursor: pointer;
}

.fancybox {overflow: hidden;}
.fbgui {-webkit-user-select: none; user-select: none;}

.fbgoleft > label {border-right-color: var(--fb-tri-color); margin-left: calc(-1 * var(--fb-tri-size));}
.fbgoright > label {border-left-color: var(--fb-tri-color); margin-right: calc(-1 * var(--fb-tri-size));}

/*
.fbgoleft > label:first-of-type {border-right-color: var(--fb-tri-color-disabled); cursor: default;}
.fbgoright > label:last-of-type {border-left-color: var(--fb-tri-color-disabled); cursor: default;}
*/

.fancybox > [type="radio"]:nth-child(1):checked ~ .fbgui > .fbgox > label:not(:nth-child(1)) {display: none;}
.fancybox > [type="radio"]:nth-child(2):checked ~ .fbgui > .fbgox > label:not(:nth-child(2)) {display: none;}
.fancybox > [type="radio"]:nth-child(3):checked ~ .fbgui > .fbgox > label:not(:nth-child(3)) {display: none;}
.fancybox > [type="radio"]:nth-child(4):checked ~ .fbgui > .fbgox > label:not(:nth-child(4)) {display: none;}
.fancybox > [type="radio"]:nth-child(5):checked ~ .fbgui > .fbgox > label:not(:nth-child(5)) {display: none;}
.fancybox > [type="radio"]:nth-child(6):checked ~ .fbgui > .fbgox > label:not(:nth-child(6)) {display: none;}
.fancybox > [type="radio"]:nth-child(7):checked ~ .fbgui > .fbgox > label:not(:nth-child(7)) {display: none;}
.fancybox > [type="radio"]:nth-child(8):checked ~ .fbgui > .fbgox > label:not(:nth-child(8)) {display: none;}
.fancybox > [type="radio"]:nth-child(9):checked ~ .fbgui > .fbgox > label:not(:nth-child(9)) {display: none;}
.fancybox > [type="radio"]:nth-child(10):checked ~ .fbgui > .fbgox > label:not(:nth-child(10)) {display: none;}
.fancybox > [type="radio"]:nth-child(11):checked ~ .fbgui > .fbgox > label:not(:nth-child(11)) {display: none;}
.fancybox > [type="radio"]:nth-child(12):checked ~ .fbgui > .fbgox > label:not(:nth-child(12)) {display: none;}
.fancybox > [type="radio"]:nth-child(13):checked ~ .fbgui > .fbgox > label:not(:nth-child(13)) {display: none;}
.fancybox > [type="radio"]:nth-child(14):checked ~ .fbgui > .fbgox > label:not(:nth-child(14)) {display: none;}
.fancybox > [type="radio"]:nth-child(15):checked ~ .fbgui > .fbgox > label:not(:nth-child(15)) {display: none;}
.fancybox > [type="radio"]:nth-child(16):checked ~ .fbgui > .fbgox > label:not(:nth-child(16)) {display: none;}
.fancybox > [type="radio"]:nth-child(17):checked ~ .fbgui > .fbgox > label:not(:nth-child(17)) {display: none;}
.fancybox > [type="radio"]:nth-child(18):checked ~ .fbgui > .fbgox > label:not(:nth-child(18)) {display: none;}
.fancybox > [type="radio"]:nth-child(19):checked ~ .fbgui > .fbgox > label:not(:nth-child(19)) {display: none;}
.fancybox > [type="radio"]:nth-child(20):checked ~ .fbgui > .fbgox > label:not(:nth-child(20)) {display: none;}


.fbradio {
  position: absolute;
  margin-left: auto;
  margin-right: auto;
  left: 0;
  right: 0;
  display: inline-block;
  text-align: center;
  clear: both;
}

.fbradio > label {
  display: inline-block;
  margin-left: calc(var(--fb-radio-size) / 4);
  margin-right: calc(var(--fb-radio-size) / 4);
  width: var(--fb-radio-size);
  height: var(--fb-radio-size);
  border: 1px solid var(--fb-radio-color);
  box-sizing: border-box;
  border-radius: var(--fb-radio-size);
  cursor: pointer;
  background: var(--color-lite);
  transition: 0.25s;
}


.fancybox > [type="radio"]:nth-child(1):checked ~ .fbgui > .fbradio > label:nth-child(1) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(2):checked ~ .fbgui > .fbradio > label:nth-child(2) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(3):checked ~ .fbgui > .fbradio > label:nth-child(3) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(4):checked ~ .fbgui > .fbradio > label:nth-child(4) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(5):checked ~ .fbgui > .fbradio > label:nth-child(5) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(6):checked ~ .fbgui > .fbradio > label:nth-child(6) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(7):checked ~ .fbgui > .fbradio > label:nth-child(7) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(8):checked ~ .fbgui > .fbradio > label:nth-child(8) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(9):checked ~ .fbgui > .fbradio > label:nth-child(9) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(10):checked ~ .fbgui > .fbradio > label:nth-child(10) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(11):checked ~ .fbgui > .fbradio > label:nth-child(11) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(12):checked ~ .fbgui > .fbradio > label:nth-child(12) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(13):checked ~ .fbgui > .fbradio > label:nth-child(13) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(14):checked ~ .fbgui > .fbradio > label:nth-child(14) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(15):checked ~ .fbgui > .fbradio > label:nth-child(15) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(16):checked ~ .fbgui > .fbradio > label:nth-child(16) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(17):checked ~ .fbgui > .fbradio > label:nth-child(17) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(18):checked ~ .fbgui > .fbradio > label:nth-child(18) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(19):checked ~ .fbgui > .fbradio > label:nth-child(19) {background: var(--fb-radio-color); cursor: default;}
.fancybox > [type="radio"]:nth-child(20):checked ~ .fbgui > .fbradio > label:nth-child(20) {background: var(--fb-radio-color); cursor: default;}