:root {
   --bg: #0f0c19;
   --primary: #2c223d;
   --card-width: min(80vw, 20rem);
   --card-blur: .7rem;
   --card-radius: .8rem;
   --card-border: .15rem solid #ffffff4d;
   --card-gradient: linear-gradient(135deg, rgba(255, 255, 255, .4) ,rgba(255, 255, 255, .1));
   --card-shadow: .2rem .1rem .5rem rgba(0, 0, 0, .2);
   --gradient-1: linear-gradient(135deg, #79960c, #f2e690);
   --gradient-2: linear-gradient(135deg, #8c366c, #6e64e7);
   --gradient-3: linear-gradient(135deg, #0f3443, #34e89e);
   --gradient-4: linear-gradient(135deg, #dc50ff, #ff5e5e);
}

* {
   margin: 0;
   padding: 0;
   box-sizing: border-box;
   list-style: none;
}
body {
   background-color: var(--bg);
   font-family: Helvetica, Sans-Serif;
   color: #fdfdfd;
}
main {
   width: 100%;
   height: 100%;
   display: flex;
   flex-direction: column;
   flex-wrap: wrap;
   gap: 4rem;
   justify-content: center;
   align-items: center;
   position: relative;
   padding: max(10vw, 2rem);
}

h1 {
   text-align: center;
   margin-top: 2rem;
   background-image: var(--gradient-4);
   background-clip: text;
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent;
}

.card-wrapper {
   position: relative;
   width: var(--card-width);
   height: calc(var(--card-width)/16*9);
}

.card {
   position: relative;
   width: 100%;
   height: 100%;
   border-radius: var(--card-radius);
   border: var(--card-border);
   background-image: var(--card-gradient);
   backdrop-filter: blur(var(--card-blur));
   box-shadow: var(--card-shadow);
   overflow: auto;
   opacity: 1;
}
.content {
   position: absolute;
   width: 100%;
   height: 100%;
   padding: 1rem;
   color: #ffffff;
   text-shadow: 1px 1px 5px rgba(0, 0, 0, .3);
}
.card img {
   width: 2.4rem;
   filter: invert(1);
   margin-top: .2rem;
}

.card h4 {
   text-align: center;

}

.card .title {
   position: absolute;
   top: 1rem;
   right: 1rem;
}


.circle {
   border-radius: 50%;
   position: absolute;
}

.circle1 {
   width: 3rem;
   height: 3rem;
   left: -10%;
   top: 5%;
   background-image: var(--gradient-1);
}
.circle2 {
   width: 5rem;
   height: 5rem;
   right: -4%;
   top: 53%;
   background-image: var(--gradient-2);
}
.circle3 {
   width: 6rem;
   height: 6rem;
   left: 18%;
   top: 72%;
   background-image: var(--gradient-3);
}
.circle4 {
   width: 4rem;
   height: 4rem;
   right: 0;
   top: -6%;
   background-image: var(--gradient-4);
}

/* CARD CONFIGS PANEL*/
.configs-wrapper {
   width: 70vw;
   max-width: 20rem;
   background-color: var(--primary);
   backdrop-filter: blur(.5rem);
   width: 100%;

   padding: 1.5rem;
   border-radius: .5rem;

}

.configs li {
   margin-bottom: 1.5rem;
}
.configs li h4 {
   margin-bottom: 0.5rem;
}
.input-control {
   display: flex;
   align-items: center;
   gap: 1rem;
   justify-content: space-between;
}

.input-control input {
   flex: 1;
}
.input-control span {
   display: inline-block;
   min-width: 2.5rem;
   text-align: right;
}

.coloris {
   outline: none;
   border: none;
   background-color: transparent;
   color: transparent;
}

/* CUSTOM RANGE INPUT APPEARANCE*/
input[type="range"] {
   --track-height: .3rem;
   --track-color: #9b51b2;
   --thumb-height: .8rem;
   --thumb-width: 1rem;
   --thumb-color: #a478eb;
   --thumb-radius: .2rem;
   -webkit-appearance: none;
   background: transparent;
   cursor: pointer;
}

input[type="range"]::-webkit-slider-runnable-track {
   background: var(--track-color);
   height: var(--track-height);
   border-radius: calc(var(--track-height)/2);
}

input[type="range"]::-moz-range-track {
   background: var(--track-color);
   height: var(--track-height);
}

input[type="range"]::-webkit-slider-thumb {
   appearance: none;
   -webkit-appearance: none;
   margin-top: calc((var(--track-height) - var(--thumb-height))/2);
   border-radius: var(--thumb-radius);
   background-color: var(--thumb-color);
   height: var(--thumb-height);
   width: var(--thumb-width);
}

#cssCode {
   width: 100%;
   margin: 1rem 0;
   background-color: #9b51b2;
   border-radius: .2rem;
   padding: .4rem;
   color: #fff;
   line-height: 180%;
}

.btn {
   outline: none;
   color: #eeeeee;
   font-size: 1rem;
   border: none;
   padding: .8rem 1.6rem;
   border-radius: .5rem;
   font-weight: 700;
   user-select: none;
   cursor: pointer;
   background-color: #3394e1;
   box-shadow: .1rem .1rem .2rem #00000033;
}

.btn:active {
   box-shadow: .1rem .2rem .4rem #00000066;
}

/* RESPONSIVE */

@media all and (min-width: 600px) {
   main {
      flex-direction: row;
   }
   .card-wrapper {
      align-self: flex-start;
   }
}