html::before,
html::after {
  content: "";
  position: fixed;
  z-index: -2;
  border-radius: 50%;
}

html::before {
  height: 100px;
  width: 100px;
  top: 20%;
  left: calc(50% - 650px);
  background-image: linear-gradient(to right bottom, var(--decoration-bg-1), var(--WHITE));
}

html::after {
  height: 150px;
  width: 150px;
  bottom: 20%;
  right: calc(50% - 675px);
  background-image: linear-gradient(to left bottom, var(--decoration-bg-2), var(--WHITE));
}

body {
  --white: hsl(0, 0%, 100%, 0.25);
  --border-1: hsl(0, 0%, 0%, 0.1);
  --border-2: hsl(0, 0%, 100%, 0.4);
  --shadow: none;
  --backdrop-filter-blur: blur(5px);
  background-image: linear-gradient(to right, var(--body-gradient-bg-1), var(--body-gradient-bg-2));
  background-attachment: fixed;
  padding: 40px 0;
}

/* - Control Lightness Using Opacity Property - */
body::before {
  content: "";
  position: fixed;
  left: 0;
  top: 0;
  height: 100%;
  width: 100%;
  background-color: var(--WHITE);
  opacity: 0.3;
  z-index: -3;
}

.main-wrapper {
  max-width: 1200px;
  background-color: var(--white);
  border: 1px solid var(--border-2);
  margin: auto;
  border-radius: 20px;
  position: relative;
}

.main-wrapper::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 100%;
  backdrop-filter: var(--backdrop-filter-blur);
  -webkit-backdrop-filter: var(--backdrop-filter-blur);
  z-index: -1;
  border-radius: 20px;
}

.header .sub-menu,
.box {
  border: 1px solid var(--border-2);
}

.header-backdrop,
.header .sub-menu,
.modal,
.box,
.style-switcher {
  backdrop-filter: var(--backdrop-filter-blur);
  -webkit-backdrop-filter: var(--backdrop-filter-blur);
}

.modal-backdrop {
  background-color: var(--white);
}

.header-backdrop.active {
  opacity: 1;
}

/* ---------------- Glass Dark ---------------- */
body.dark {
  --border-1: hsla(0, 0%, 100%, 0.15);
  --border-2: hsla(0, 0%, 100%, 0.07);
  --white: hsla(0, 0%, 100%, 0.05);
  --shadow: none;
}

/* - Control Darkness Using Opacity Property - */
body.dark::before {
  content: "";
  position: fixed;
  left: 0;
  top: 0;
  height: 100%;
  width: 100%;
  background-color: var(--BLACK);
  opacity: 0.2;
  z-index: -1;
}

/* ---------------- Responsive ---------------- */

@media (max-width: 1199px) {
  body {
    padding: 40px 30px;
  }

  html::before {
    height: 85px;
    width: 85px;
    left: -35px;
    top: 10%;
  }

  html::after {
    height: 130px;
    width: 130px;
    right: -50px;
    bottom: 10%;
  }
}
@media (max-width: 991px) {
  .header-menu {
    backdrop-filter: var(--backdrop-filter-blur);
    -webkit-backdrop-filter: var(--backdrop-filter-blur);
  }

  .header .sub-menu {
    border: 0;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}
@media (max-width: 767px) {
  body {
    padding: 35px 15px;
  }

  html::before {
    height: 70px;
    width: 70px;
  }

  html::after {
    height: 110px;
    width: 110px;
  }
}