app.css

/*? light mode colors */
:root {
  --background: #e1e1e9;
  --calc-background: rgba(253, 253, 253, 0.5);
  --calc-shadow: 20px rgb(65, 57, 57);
  --num-background: linear-gradient(to bottom right, #c0c5d1, #edeef5);
  --num-shadow: inset 2px 2px 3px #ebebf3, inset 4px 4px 15px #cacfd6,
    3px 3px 12px #c2c7d4;
  --eql-background: linear-gradient(to bottom right, #d36d12, #ed9d1e);
  --eql-shadow: inset 1px 1px 3px #f98500, inset 4px 4px 15px #b35300,
    inset -1px -1px 3px #cc6308, 3px 3px 5px #c2c7d4;
  --c-background: linear-gradient(to bottom right, #8b94a1, #eff0f7);
  --c-shadow: inset 1px 1px 1px #c8ced9, inset 2px 2px 8px #cacfd6,
    inset -2px -2px 3px #b4bbc7, 3px 3px 12px #c2c7d4;
  --font-color: #222;
  --mode-bk: #0025;
  --boton-color: #fff;
  --letra-color: rgba(35, 35, 58, 0.945);
}
/*? dark mode colors */
[data-theme="dark"] {
  --calc-background: #1e212aad;
  --calc-shadow: 30px 30px 55px #888;
  --num-background: linear-gradient(to bottom right, #292d38, #3c3c44);
  --num-shadow: inset 1px 1px 1px #393c4a, inset 4px 4px 15px #20232d,
    3px 3px 5px #181b24;
  --eql-shadow: inset 1px 1px 2px #f9aa2d99, inset 4px 4px 15px #a54e04,
    3px 3px 5px #181b24;
  --c-background: linear-gradient(to bottom right, #494f5c, #6f7587);
  --c-shadow: inset 1px 1px 1px #656b7b, inset 4px 4px 15px #333942,
    3px 3px 5px #181b24;
  --font-color: #fff;
  --mode-bk: #fff2;
  --boton-color: rgba(141, 133, 133, 0.719);
  --letra-color: rgb(255, 255, 255);
  --hover-color: #1e212aad;
}

/*
Para el fondooo
*/
.background-radial-gradient {
  background-color: hsl(218, 41%, 15%);
  background-image: radial-gradient(
      650px circle at 0% 0%,
      hsl(218, 41%, 35%) 15%,
      hsl(218, 41%, 30%) 35%,
      hsl(218, 41%, 20%) 75%,
      hsl(218, 41%, 19%) 80%,
      transparent 100%
    ),
    radial-gradient(
      1250px circle at 100% 100%,
      hsl(218, 41%, 45%) 15%,
      hsl(218, 41%, 30%) 35%,
      hsl(218, 41%, 20%) 75%,
      hsl(218, 41%, 19%) 80%,
      transparent 100%
    );
}

#radius-shape-1 {
  height: 220px;
  width: 220px;
  top: -60px;
  left: -130px;
  background: radial-gradient(#44006b, #ad1fff);
  overflow: hidden;
}

#radius-shape-2 {
  border-radius: 38% 62% 63% 37% / 70% 33% 67% 30%;
  bottom: -60px;
  right: -110px;
  width: 300px;
  height: 300px;
  background: radial-gradient(#44006b, #ad1fff);
  /* overflow: hidden; */
}

.bg-glass {
  background-color: hsla(0, 0%, 100%, 0.9) !important;
  backdrop-filter: saturate(200%) blur(25px);
}
/**/

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Roboto", sans-serif;
}

.bg-white-cs {
  background-color: var(--calc-background);
  border-radius: 35px;
  box-shadow: var(--calc-shadow);
  color: var(--font-color);
}

#res {
  font-size: 30px;
  border: none;
  margin: 10px 0;
  color: var(--font-color);
  background: transparent;
  text-align: right;
  border: none;
  outline: none;
}
.row-1,
.row-2,
.row-3,
.row-4,
.row-5 {
  display: flex;
  width: 100%;
  height: 100px;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.row-1 {
  justify-content: center;
}

.buttons {
  /* display: inline-block; */
  padding: 0 12px;
}

.tecla,
.eliminar,
.history-btn {
  background-color: var(--boton-color);
  height: 80px;
  width: 80px;
  border-radius: 50%;
  border: 0px;
  font-size: 30px;
  color: var(--letra-color);
  cursor: pointer;
}
.tecla:hover {
  background-color: #abecd9;
  color: var(--hover-color);
}
.teclacolor {
  color: var(--letra-color);
  font-weight: bold;
}

.tecla:hover {
  background-color: #abecd9;
  color: var(--hover-color);
}

.history {
  display: flex;
  justify-content: center;
  align-items: center;
}

.operacion {
  background-color: #e67700;
}

.mode {
  cursor: pointer;
  margin-left: 20px;
  margin-top: 20px;
  width: 50px;
  height: 50px;
  display: grid;
  place-content: center;
  border-radius: 25px;
  border-bottom-left-radius: 0px;
  background: var(--mode-bk);
}
.mode:hover {
  background-color: #abecd9;
  color: var(--hover-color);
}
.teclas {
  padding: 10px 5px;
  margin: 0 auto;
}

.centrar {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  row-gap: 20px;
}

@media (min-width: 992px) {
  .centrar {
    flex-direction: row;
    column-gap: 20px;
  }
}

.historial {
  padding: 25px;
  max-height: 655px;
  overflow-y: scroll;
}

.hidden {
  display: none;
}

ul {
  padding: 0px !important;
  list-style: none;
  font-size: 20px;
}