@function section-divider($color) {
  @return url-svg(
    '<svg viewBox="0 0 1920 60"><path fill="#{$color}" d="M1920,60H0V0S387,59,960,59,1920,0,1920,0Z"/></svg>'
  );
}

.section {
  --section-bg: transparent;
  --section-bg-rgb: 255, 255, 255;
  background: var(--section-bg);
  position: relative;
  padding: $gap-6 0;

  @include media-breakpoint-up(lg) {
    padding: $gap-7 0;
  }
}

.section-sm {
  padding: $gap-6 0;
}

.section-white {
  --section-bg: #{$color-white};
  --section-bg-rgb: #{to-rgb($color-white)};
}

.section-light {
  --section-bg: #{$color-gray};
  --section-bg-rgb: #{to-rgb($color-gray)};
}

.section-primary {
  --section-bg: #{$color-primary};
  --section-bg-rgb: #{to-rgb($color-primary)};
}

.section-primary-light {
  --section-bg: #{mix($color-primary, #fff, 8%)};
  --section-bg-rgb: #{to-rgb(mix($color-primary, #fff, 8%))};
}

.section-dark {
  --section-bg-rgb: #{to-rgb($color-dark)};
  color: $color-white;
  background: $color-dark;

  --color-headings: #{$color-white};
  --color-muted: #{mix($color-dark, $color-white, 40%)};
}

@keyframes move-forever1 {
  0% {
    transform: translate(85px, 0%);
  }

  100% {
    transform: translate(-90px, 0%);
  }
}

@keyframes move-forever2 {
  0% {
    transform: translate(-90px, 0%);
  }

  100% {
    transform: translate(85px, 0%);
  }
}

@keyframes move-forever3 {
  0% {
    transform: translate(-90px, 0%);
  }

  100% {
    transform: translate(85px, 0%);
  }
}

//
// Section divider
//
.section-divider {
  position: absolute;
  bottom: 100%;
  pointer-events: none;
  height: 5rem;
  width: 100%;

  path {
    fill: var(--section-bg);
  }

  .wave-1 {
    animation: move-forever1 30s linear infinite;
    animation-delay: -2s;
  }

  .wave-2 {
    animation: move-forever2 24s linear infinite;
    opacity: .5;
    animation-delay: -2s;
  }

  .wave-3 {
    animation: move-forever3 18s linear infinite;
    opacity: .3;
    animation-delay: -2s;
  }
}

.section-divider-auto {
  height: auto;
}

//
// Section header
//
.section-header,
.page-header {
  text-align: center;
  max-width: 45rem;
  margin: 0 auto $gap-6;
}

.page-header {
  margin-bottom: $gap-7;
}

.page-title {
  font-size: $font-size-h1;
  line-height: $line-height-h1;
  margin-bottom: $gap-3;
  font-weight: $font-weight-bold;

  + .page-description {
    margin-top: -$gap-2;
  }
}

.section-title {
  font-size: $font-size-h2;
  font-weight: $font-weight-bold;
  line-height: $line-height-h2;

  &-lg {
    font-size: $font-size-h1;
    line-height: $line-height-h1;
    font-weight: $font-weight-black;
  }
}

.section-description,
.page-description {
  color: $color-muted;
  margin: 1rem auto 0;
  font-weight: normal;

  .section-header & {
    max-width: 40rem;
  }
}

//
// Footer
//
.footer {
  margin-top: auto;
  color: $color-muted;
  background: $color-white;
}

//
// Content
//
.content {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

//
// Header
//
.header {
  height: $header-height;
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  padding: 0;
  display: flex;
  align-items: center;
  transition: .3s background-color, .3s height, .6s box-shadow, .3s background;
  z-index: $zindex-header + 30;
  background: $color-white;
}

.header-static,
.header-bordered {
  box-shadow: 0 0 0 1px $color-border;
}

.header-docs {
  background-color: $color-white;
  box-shadow: 0 0 0 1px $color-border;
}

.header-sticky {
  box-shadow: 0 0 0 1px $color-border, 0 0.375rem 1.25rem -0.25rem rgba($color-text, 0.06);

  &:not(.header-docs) {
    background-color: rgba($color-white, .9);
    backdrop-filter: blur(3px);
  }
}

//
// Main
//
.main {
}

//
// Side
//
.side {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: $aside-width;
  background: $color-white;
  border-right: 1px solid $color-border;

  ~ .main {
    margin-left: $aside-width;
  }
}

//
// Hero
//
.hero {
  text-align: center;
  padding: $gap-5 0;

  @include media-breakpoint-up(md) {
    padding: $gap-7 0;
  }
}

.hero-subheader {
  text-transform: uppercase;
  color: $color-muted;
  font-weight: $font-weight-medium;
  font-size: $font-size-h7;
  margin-bottom: $gap-3;
  letter-spacing: $tracking-wide;
}

.hero-title {
  font-size: $font-size-h2;
  line-height: $line-height-h2;
  font-weight: $font-weight-black;
  letter-spacing: $tracking-tight;

  @include media-breakpoint-up(sm) {
    font-size: $font-size-h1;
    line-height: $line-height-h1;
  }

  @include media-breakpoint-up(lg) {
    font-size: $font-size-h0;
    line-height: $line-height-h0;
  }
}

.hero-description {
  color: $color-muted;
  font-size: $font-size-h5;
  line-height: 1.5;
  margin: 0 auto;
  max-width: 47rem;

  @include media-breakpoint-up(sm) {
    font-size: $font-size-h4;
  }

  @include media-breakpoint-up(lg) {
    font-size: $font-size-h3;
  }
}

.hero-img {
  margin: $gap-7 auto;
  max-width: 65rem;
  border-radius: $border-radius-lg;
  position: relative;
  z-index: 1;
  box-shadow: 0 10px 15px -3px rgba($color-text, 0.1),
    0 4px 6px -2px rgba($color-text, 0.05);

  img,
  svg {
    max-width: 100%;
    height: auto;
    display: block;
    position: relative;
  }
}

.hero-img-side {
  img,
  svg {
    max-width: 100%;
    height: auto;
    display: block;
  }
}

.sticky-top {
  position: sticky;
  top: $header-height + 1rem;
}

$img-overlap-space: 8rem;
.img-overlap-margin {
  margin-bottom: -($img-overlap-space);
}

.img-overlap-padding {
  padding-top: $img-overlap-space;
}

.img-gradient {
  background-color: #f6f7fb;
  mask: url('data:image/svg+xml;charset=utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100"><defs><linearGradient id="a" x1="0" x2="0" y1="0" y2="1"><stop stop-color="black" offset="0%" /><stop stop-color="rgba(0, 0, 0, 1)" offset="50%" /><stop stop-color="rgba(0, 0, 0, .6)" offset="80%" /><stop stop-color="transparent" offset="100%" /></linearGradient></defs><rect x="0" y="0" width="100" height="100" fill="url(%23a)" /></svg>') no-repeat;
  mask-size: 100% 100%;
}