popup.css

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: inherit;
}
:root {
  width: 315px !important;
}
html {
  box-sizing: border-box;
  background: #263238;
}
.container {
  background: #263238;
  max-width: 100vw;
  display: grid;
  grid-template-columns: auto;
  grid-template-rows: auto;
  justify-items: center;
  align-items: center;
}
.container__btn {
  display: grid;
  /* grid-gap: 2px; */
  justify-items: center;
  align-items: center;
}

@media screen and (max-width: 100px) {
  .container__btn {
    grid-template-columns: 100px;
    grid-template-rows: repeat(auto-fit);
 }
}
textarea {
  border-radius: 12px;
  outline: unset;
  outline-offset: unset;
  box-shadow: 0 5px 8px rgba(0, 0, 0, .4);
}
textarea:focus-visible {
  outline: unset;
  outline-offset: unset;
  filter: saturate(400%);
}
/* ALL BUTTONS */
.btn {
  margin-bottom: 4px;
  margin-top: 4px;
  font-family: 'Poppins', sans-serif;
  font-size: 14px;
  border: none;
  letter-spacing: 1px;
  text-transform: full-width;
  border-radius: 12px;
  color: #fff;
  position: relative;
  cursor: pointer;
  box-shadow: 0 5px 8px rgba(0, 0, 0, .4);
  max-width: 200px;
  max-height: 1.5em;
}
.btn:focus, .btn:focus::after {
  outline: none;
}
.btn:active {
  transform: translateY(2px);
}
/* BUTTON BLUE */
.btn-shine {
  padding-left: 2em;
  padding-right: 2em;
  /* padding-top: 1em;
  padding-bottom: 1em; */
  background-image: linear-gradient(to right, #1bdbd1, #1fa2ff);
  overflow: hidden;
}
.btn-shine span {
  z-index: 20;
}
.btn-shine::after {
  background: #fff;
  content: "";
  height: 155px;
  top: -50px;
  left: -75px;
  opacity: 0.3;
  position: absolute;
  transform: rotate(35deg);
  transition: all 650ms cubic-bezier(0.19, 1, 0.22, 1);
  width: 50px;
  z-index: 0;
}
.btn-shine:hover::after {
  left: 120%;
  transition: all 650ms cubic-bezier(0.19, 1, 0.22, 1);
}


/* BTN GRADIENTS */
.btn-gradients {
  padding-left: 2em;
  padding-right: 2em;
  /* padding-top: 1em;
  padding-bottom: 1em; */
  background: transparent;
  z-index: 1;
  overflow: hidden;
}
.btn-gradients::after {
  background-image: linear-gradient(to right, #6f16fd, #fb0779);
  content: "";
  height: 100%;
  width: 200%;
  top: 0;
  left: 0;
  position: absolute;
  transition: all 2.5s cubic-bezier(0.19, 1, 0.22, 1);
  z-index: -1;
}
.btn-gradients:hover::after {
  left: -120px;
  transition: all 2.5s cubic-bezier(0.19, 1, 0.22, 1);
  color: #fff;
}