bulma/sass/layout/hero.sass

$hero-body-padding: 3rem 1.5rem !default
$hero-body-padding-small: 1.5rem !default
$hero-body-padding-medium: 9rem 1.5rem !default
$hero-body-padding-large: 18rem 1.5rem !default

$hero-colors: $colors !default

// Main container
.hero
  --hero-body-padding: #{$hero-body-padding}
  --hero-body-padding-small: #{$hero-body-padding-small}
  --hero-body-padding-medium: #{$hero-body-padding-medium}
  --hero-body-padding-large: #{$hero-body-padding-large}
  align-items: stretch
  display: flex
  flex-direction: column
  justify-content: space-between
  .navbar
    background: none
  .tabs
    ul
      border-bottom: none
  // Colors
  @each $name, $pair in $hero-colors
    $color: nth($pair, 1)
    $color-invert: nth($pair, 2)
    &.is-#{$name}
      --hover-background-l-delta: -5%
      --hover-background-#{$name}-l: calc(#{var(--#{$name}-light-l)} + #{var(--hover-background-l-delta)})
      --hover-background-color: hsla(var(--#{$name}-h), var(--#{$name}-s), var(--hover-background-#{$name}-l), var(--#{$name}-a))
      background-color: var(--#{$name}, #{$color})
      color: var(--#{$name}-invert, #{$color-invert})
      a:not(.button):not(.dropdown-item):not(.tag):not(.pagination-link.is-current),
      strong
        color: inherit
      .title
        color: var(--#{$name}-invert, #{$color-invert})
      .subtitle
        color: bulmaRgba($color-invert, 0.9)
        a:not(.button),
        strong
          color: var(--#{$name}-invert, #{$color-invert})
      .navbar-menu
        +touch
          background-color: var(--#{$name}, #{$color})
      .navbar-item,
      .navbar-link
        color: bulmaRgba($color-invert, 0.7)
      a.navbar-item,
      .navbar-link
        &:hover,
        &.is-active
          background-color: var(--hover-background-color, #{bulmaDarken($color, 5%)})
          color: var(--#{$name}-invert, #{$color-invert})
      .tabs
        a
          color: var(--#{$name}-invert, #{$color-invert})
          opacity: 0.9
          &:hover
            opacity: 1
        li
          &.is-active a
            opacity: 1
        &.is-boxed,
        &.is-toggle
          a
            color: var(--#{$name}-invert, #{$color-invert})
            &:hover
              background-color: rgba(0, 0, 0, 0.1)
          li.is-active a
            &,
            &:hover
              background-color: var(--#{$name}-invert, #{$color-invert})
              border-color: var(--#{$name}-invert, #{$color-invert})
              color: var(--#{$name}, #{$color})
      // Modifiers
      @if type-of($color) == 'color'
        &.is-bold
          $gradient-top-left: darken(saturate(adjust-hue($color, -10deg), 10%), 10%)
          $gradient-bottom-right: lighten(saturate(adjust-hue($color, 10deg), 5%), 5%)
          background-image: linear-gradient(141deg, $gradient-top-left 0%, $color 71%, $gradient-bottom-right 100%)
          +mobile
            .navbar-menu
              background-image: linear-gradient(141deg, $gradient-top-left 0%, $color 71%, $gradient-bottom-right 100%)
  // Sizes
  &.is-small
    .hero-body
      --hero-body-padding: var(--hero-body-padding-small)
  &.is-medium
    +tablet
      .hero-body
        --hero-body-padding: var(--hero-body-padding-medium)
  &.is-large
    +tablet
      .hero-body
        --hero-body-padding: var(--hero-body-padding-large)
  &.is-halfheight,
  &.is-fullheight,
  &.is-fullheight-with-navbar
    .hero-body
      align-items: center
      display: flex
      & > .container
        flex-grow: 1
        flex-shrink: 1
  &.is-halfheight
    min-height: 50vh
  &.is-fullheight
    min-height: 100vh

// Components

.hero-video
  @extend %overlay
  overflow: hidden
  video
    left: 50%
    min-height: 100%
    min-width: 100%
    position: absolute
    top: 50%
    transform: translate3d(-50%, -50%, 0)
  // Modifiers
  &.is-transparent
    opacity: 0.3
  // Responsiveness
  +mobile
    display: none

.hero-buttons
  margin-top: 1.5rem
  // Responsiveness
  +mobile
    .button
      display: flex
      &:not(:last-child)
        margin-bottom: 0.75rem
  +tablet
    display: flex
    justify-content: center
    .button:not(:last-child)
      +ltr-property("margin", 1.5rem)

// Containers

.hero-head,
.hero-foot
  flex-grow: 0
  flex-shrink: 0

.hero-body
  flex-grow: 1
  flex-shrink: 0
  padding: var(--hero-body-padding)