instrumental/app/javascript/styles/mastodon/about.scss

$maximum-width: 1235px;
$fluid-breakpoint: $maximum-width + 20px;
$column-breakpoint: 700px;
$small-breakpoint: 960px;

.container {
  box-sizing: border-box;
  max-width: $maximum-width;
  margin: 0 auto;
  position: relative;

  @media screen and (max-width: $fluid-breakpoint) {
    width: 100%;
    padding: 0 10px;
  }
}

.rich-formatting {
  font-family: 'mastodon-font-sans-serif', sans-serif;
  font-size: 16px;
  font-weight: 400;
  font-size: 16px;
  line-height: 30px;
  color: $darker-text-color;
  padding-right: 10px;

  a {
    color: $highlight-text-color;
    text-decoration: underline;
  }

  p,
  li {
    font-family: 'mastodon-font-sans-serif', sans-serif;
    font-size: 16px;
    font-weight: 400;
    font-size: 16px;
    line-height: 30px;
    margin-bottom: 12px;
    color: $darker-text-color;

    a {
      color: $highlight-text-color;
      text-decoration: underline;
    }

    &:last-child {
      margin-bottom: 0;
    }
  }

  em {
    display: inline;
    margin: 0;
    padding: 0;
    font-weight: 700;
    background: transparent;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    color: lighten($darker-text-color, 10%);
  }

  h1 {
    font-family: 'mastodon-font-display', sans-serif;
    font-size: 26px;
    line-height: 30px;
    font-weight: 500;
    margin-bottom: 20px;
    color: $secondary-text-color;

    small {
      font-family: 'mastodon-font-sans-serif', sans-serif;
      display: block;
      font-size: 18px;
      font-weight: 400;
      color: lighten($darker-text-color, 10%);
    }
  }

  h2 {
    font-family: 'mastodon-font-display', sans-serif;
    font-size: 22px;
    line-height: 26px;
    font-weight: 500;
    margin-bottom: 20px;
    color: $secondary-text-color;
  }

  h3 {
    font-family: 'mastodon-font-display', sans-serif;
    font-size: 18px;
    line-height: 24px;
    font-weight: 500;
    margin-bottom: 20px;
    color: $secondary-text-color;
  }

  h4 {
    font-family: 'mastodon-font-display', sans-serif;
    font-size: 16px;
    line-height: 24px;
    font-weight: 500;
    margin-bottom: 20px;
    color: $secondary-text-color;
  }

  h5 {
    font-family: 'mastodon-font-display', sans-serif;
    font-size: 14px;
    line-height: 24px;
    font-weight: 500;
    margin-bottom: 20px;
    color: $secondary-text-color;
  }

  h6 {
    font-family: 'mastodon-font-display', sans-serif;
    font-size: 12px;
    line-height: 24px;
    font-weight: 500;
    margin-bottom: 20px;
    color: $secondary-text-color;
  }

  ul,
  ol {
    margin-left: 20px;

    &[type='a'] {
      list-style-type: lower-alpha;
    }

    &[type='i'] {
      list-style-type: lower-roman;
    }
  }

  ul {
    list-style: disc;
  }

  ol {
    list-style: decimal;
  }

  li > ol,
  li > ul {
    margin-top: 6px;
  }

  hr {
    width: 100%;
    height: 0;
    border: 0;
    border-bottom: 1px solid rgba($ui-base-lighter-color, .6);
    margin: 20px 0;

    &.spacer {
      height: 1px;
      border: 0;
    }
  }
}

.information-board {
  background: darken($ui-base-color, 4%);
  padding: 20px 0;

  .container-alt {
    position: relative;
    padding-right: 280px + 15px;
  }

  &__sections {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
  }

  &__section {
    flex: 1 0 0;
    font-family: 'mastodon-font-sans-serif', sans-serif;
    font-size: 16px;
    line-height: 28px;
    color: $primary-text-color;
    text-align: right;
    padding: 10px 15px;

    span,
    strong {
      display: block;
    }

    span {
      &:last-child {
        color: $secondary-text-color;
      }
    }

    strong {
      font-weight: 500;
      font-size: 32px;
      line-height: 48px;
    }

    @media screen and (max-width: $column-breakpoint) {
      text-align: center;
    }
  }

  .panel {
    position: absolute;
    width: 280px;
    box-sizing: border-box;
    background: darken($ui-base-color, 8%);
    padding: 20px;
    padding-top: 10px;
    border-radius: 4px 4px 0 0;
    right: 0;
    bottom: -40px;

    .panel-header {
      font-family: 'mastodon-font-display', sans-serif;
      font-size: 14px;
      line-height: 24px;
      font-weight: 500;
      color: $darker-text-color;
      padding-bottom: 5px;
      margin-bottom: 15px;
      border-bottom: 1px solid lighten($ui-base-color, 4%);
      text-overflow: ellipsis;
      white-space: nowrap;
      overflow: hidden;

      a,
      span {
        font-weight: 400;
        color: darken($darker-text-color, 10%);
      }

      a {
        text-decoration: none;
      }
    }
  }

  .owner {
    text-align: center;

    .avatar {
      width: 80px;
      height: 80px;
      margin: 0 auto;
      margin-bottom: 15px;

      img {
        display: block;
        width: 80px;
        height: 80px;
        border-radius: 48px;
      }
    }

    .name {
      font-size: 14px;

      a {
        display: block;
        color: $primary-text-color;
        text-decoration: none;

        &:hover {
          .display_name {
            text-decoration: underline;
          }
        }
      }

      .username {
        display: block;
        color: $darker-text-color;
      }
    }
  }
}

.landing-page {
  .grid {
    display: grid;
    grid-gap: 10px;
    grid-template-columns: 1fr 2fr;
    grid-auto-columns: 25%;
    grid-auto-rows: max-content;

    .column-0 {
      display: none;
    }

    .column-1 {
      grid-column: 1;
      grid-row: 1;
    }

    .column-2 {
      grid-column: 2;
      grid-row: 1;
    }

    .column-3 {
      grid-column: 3;
      grid-row: 1 / 3;
    }

    .column-4 {
      grid-column: 1 / 3;
      grid-row: 2;
    }
  }

  @media screen and (max-width: $small-breakpoint) {
    .grid {
      grid-template-columns: 40% 60%;

      .column-0 {
        display: none;
      }

      .column-1 {
        grid-column: 1;
        grid-row: 1;

        &.non-preview .landing-page__forms {
          height: 100%;
        }
      }

      .column-2 {
        grid-column: 2;
        grid-row: 1 / 3;

        &.non-preview {
          grid-column: 2;
          grid-row: 1;
        }
      }

      .column-3 {
        grid-column: 1;
        grid-row: 2 / 4;
      }

      .column-4 {
        grid-column: 2;
        grid-row: 3;

        &.non-preview {
          grid-column: 1 / 3;
          grid-row: 2;
        }
      }
    }
  }

  @media screen and (max-width: $column-breakpoint) {
    .grid {
      grid-template-columns: auto;

      .column-0 {
        display: block;
        grid-column: 1;
        grid-row: 1;
      }

      .column-1 {
        grid-column: 1;
        grid-row: 3;

        .brand {
          display: none;
        }
      }

      .column-2 {
        grid-column: 1;
        grid-row: 2;

        .landing-page__logo,
        .landing-page__call-to-action {
          display: none;
        }

        &.non-preview {
          grid-column: 1;
          grid-row: 2;
        }
      }

      .column-3 {
        grid-column: 1;
        grid-row: 5;
      }

      .column-4 {
        grid-column: 1;
        grid-row: 4;

        &.non-preview {
          grid-column: 1;
          grid-row: 4;
        }
      }
    }
  }

  .column-flex {
    display: flex;
    flex-direction: column;
  }

  .separator-or {
    position: relative;
    margin: 40px 0;
    text-align: center;

    &::before {
      content: "";
      display: block;
      width: 100%;
      height: 0;
      border-bottom: 1px solid rgba($ui-base-lighter-color, .6);
      position: absolute;
      top: 50%;
      left: 0;
    }

    span {
      display: inline-block;
      background: $ui-base-color;
      font-size: 12px;
      font-weight: 500;
      color: $darker-text-color;
      text-transform: uppercase;
      position: relative;
      z-index: 1;
      padding: 0 8px;
      cursor: default;
    }
  }

  p,
  li {
    font-family: 'mastodon-font-sans-serif', sans-serif;
    font-size: 16px;
    font-weight: 400;
    font-size: 16px;
    line-height: 30px;
    margin-bottom: 12px;
    color: $darker-text-color;

    a {
      color: $highlight-text-color;
      text-decoration: underline;
    }
  }

  .closed-registrations-message {
    margin-top: 20px;

    &,
    p {
      text-align: center;
      font-size: 12px;
      line-height: 18px;
      color: $darker-text-color;
      margin-bottom: 0;

      a {
        color: $highlight-text-color;
        text-decoration: underline;
      }
    }

    p:last-child {
      margin-bottom: 0;
    }
  }

  em {
    display: inline;
    margin: 0;
    padding: 0;
    font-weight: 700;
    background: transparent;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    color: lighten($darker-text-color, 10%);
  }

  h1 {
    font-family: 'mastodon-font-display', sans-serif;
    font-size: 26px;
    line-height: 30px;
    font-weight: 500;
    margin-bottom: 20px;
    color: $secondary-text-color;

    small {
      font-family: 'mastodon-font-sans-serif', sans-serif;
      display: block;
      font-size: 18px;
      font-weight: 400;
      color: lighten($darker-text-color, 10%);
    }
  }

  h2 {
    font-family: 'mastodon-font-display', sans-serif;
    font-size: 22px;
    line-height: 26px;
    font-weight: 500;
    margin-bottom: 20px;
    color: $secondary-text-color;
  }

  h3 {
    font-family: 'mastodon-font-display', sans-serif;
    font-size: 18px;
    line-height: 24px;
    font-weight: 500;
    margin-bottom: 20px;
    color: $secondary-text-color;
  }

  h4 {
    font-family: 'mastodon-font-display', sans-serif;
    font-size: 16px;
    line-height: 24px;
    font-weight: 500;
    margin-bottom: 20px;
    color: $secondary-text-color;
  }

  h5 {
    font-family: 'mastodon-font-display', sans-serif;
    font-size: 14px;
    line-height: 24px;
    font-weight: 500;
    margin-bottom: 20px;
    color: $secondary-text-color;
  }

  h6 {
    font-family: 'mastodon-font-display', sans-serif;
    font-size: 12px;
    line-height: 24px;
    font-weight: 500;
    margin-bottom: 20px;
    color: $secondary-text-color;
  }

  ul,
  ol {
    margin-left: 20px;

    &[type='a'] {
      list-style-type: lower-alpha;
    }

    &[type='i'] {
      list-style-type: lower-roman;
    }
  }

  ul {
    list-style: disc;
  }

  ol {
    list-style: decimal;
  }

  li > ol,
  li > ul {
    margin-top: 6px;
  }

  hr {
    width: 100%;
    height: 0;
    border: 0;
    border-bottom: 1px solid rgba($ui-base-lighter-color, .6);
    margin: 20px 0;

    &.spacer {
      height: 1px;
      border: 0;
    }
  }

  .container-alt {
    width: 100%;
    box-sizing: border-box;
    max-width: 800px;
    margin: 0 auto;
    word-wrap: break-word;
  }

  .header-wrapper {
    padding-top: 15px;
    background: $ui-base-color;
    background: linear-gradient(150deg, lighten($ui-base-color, 8%), $ui-base-color);
    position: relative;

    &.compact {
      background: $ui-base-color;
      padding-bottom: 15px;

      .hero .heading {
        padding-bottom: 20px;
        font-family: 'mastodon-font-sans-serif', sans-serif;
        font-size: 16px;
        font-weight: 400;
        font-size: 16px;
        line-height: 30px;
        color: $darker-text-color;

        a {
          color: $highlight-text-color;
          text-decoration: underline;
        }
      }
    }
  }

  .brand {
    a {
      padding-left: 0;
      padding-right: 0;
      color: $white;
    }

    img {
      height: 32px;
      position: relative;
      top: 4px;
      left: -10px;
    }
  }

  .header {
    line-height: 30px;
    overflow: hidden;

    .container-alt {
      display: flex;
      justify-content: space-between;
    }

    .links {
      position: relative;
      z-index: 4;

      a {
        display: flex;
        justify-content: center;
        align-items: center;
        color: $darker-text-color;
        text-decoration: none;
        padding: 12px 16px;
        line-height: 32px;
        font-family: 'mastodon-font-display', sans-serif;
        font-weight: 500;
        font-size: 14px;

        &:hover {
          color: $secondary-text-color;
        }
      }

      ul {
        list-style: none;
        margin: 0;

        li {
          display: inline-block;
          vertical-align: bottom;
          margin: 0;

          &:first-child a {
            padding-left: 0;
          }

          &:last-child a {
            padding-right: 0;
          }
        }
      }
    }

    .hero {
      margin-top: 50px;
      align-items: center;
      position: relative;

      .heading {
        position: relative;
        z-index: 4;
        padding-bottom: 150px;
      }

      .simple_form,
      .closed-registrations-message {
        background: darken($ui-base-color, 4%);
        width: 280px;
        padding: 15px 20px;
        border-radius: 4px 4px 0 0;
        line-height: initial;
        position: relative;
        z-index: 4;

        .actions {
          margin-bottom: 0;

          button,
          .button,
          .block-button {
            margin-bottom: 0;
          }
        }
      }

      .closed-registrations-message {
        min-height: 330px;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
      }
    }
  }

  .about-short {
    background: darken($ui-base-color, 4%);
    padding: 50px 0 30px;
    font-family: 'mastodon-font-sans-serif', sans-serif;
    font-size: 16px;
    font-weight: 400;
    font-size: 16px;
    line-height: 30px;
    color: $darker-text-color;

    a {
      color: $highlight-text-color;
      text-decoration: underline;
    }
  }

  &.alternative {
    padding: 10px 0;

    .brand {
      text-align: center;
      padding: 30px 0;
      margin-bottom: 10px;

      img {
        position: static;
        padding: 10px 0;
      }

      @media screen and (max-width: $small-breakpoint) {
        padding: 15px 0;
      }

      @media screen and (max-width: $column-breakpoint) {
        padding: 0;
        margin-bottom: -10px;
      }
    }
  }

  &__information,
  &__forms {
    padding: 20px;
  }

  &__call-to-action {
    background: darken($ui-base-color, 4%);
    border-radius: 4px;
    padding: 25px 40px;
    overflow: hidden;
    box-sizing: border-box;

    .row {
      width: 100%;
      display: flex;
      flex-direction: row-reverse;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
    }

    .row__information-board {
      display: flex;
      justify-content: flex-end;
      align-items: flex-end;

      .information-board__section {
        flex: 1 0 auto;
        padding: 0 10px;
      }

      @media screen and (max-width: $no-gap-breakpoint) {
        width: 100%;
        justify-content: space-between;
      }
    }

    .row__mascot {
      flex: 1;
      margin: 10px -50px 0 0;

      @media screen and (max-width: $no-gap-breakpoint) {
        display: none;
      }
    }
  }

  &__logo {
    margin-right: 20px;

    img {
      height: 50px;
      width: auto;
      mix-blend-mode: lighten;
    }
  }

  &__information {
    padding: 45px 40px;
    margin-bottom: 10px;

    &:last-child {
      margin-bottom: 0;
    }

    .account {
      border-bottom: 0;
      padding: 0;

      &__display-name {
        align-items: center;
        display: flex;
        margin-right: 5px;
      }

      div.account__display-name {
        &:hover {
          .display-name strong {
            text-decoration: none;
          }
        }

        .account__avatar {
          cursor: default;
        }
      }

      &__avatar-wrapper {
        margin-left: 0;
        flex: 0 0 auto;
      }

      &__avatar {
        width: 44px;
        height: 44px;
        background-size: 44px 44px;
      }

      .display-name {
        font-size: 15px;

        &__account {
          font-size: 14px;
        }
      }
    }

    @media screen and (max-width: $small-breakpoint) {
      .contact {
        margin-top: 30px;
      }
    }

    @media screen and (max-width: $column-breakpoint) {
      padding: 25px 20px;
    }
  }

  &__information,
  &__forms,
  #mastodon-timeline {
    box-sizing: border-box;
    background: $ui-base-color;
    border-radius: 4px;
    box-shadow: 0 0 6px rgba($black, 0.1);
  }

  &__mascot {
    height: 104px;
    position: relative;
    left: -40px;
    bottom: 25px;

    img {
      height: 190px;
      width: auto;
    }
  }

  &__short-description {
    .row {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      margin-bottom: 40px;
    }

    @media screen and (max-width: $column-breakpoint) {
      .row {
        margin-bottom: 20px;
      }
    }

    p a {
      color: $secondary-text-color;
    }

    h1 {
      font-weight: 500;
      color: $primary-text-color;
      margin-bottom: 0;

      small {
        color: $darker-text-color;

        span {
          color: $secondary-text-color;
        }
      }
    }

    p:last-child {
      margin-bottom: 0;
    }
  }

  &__hero {
    margin-bottom: 10px;

    img {
      display: block;
      margin: 0;
      max-width: 100%;
      height: auto;
      border-radius: 4px;
    }
  }

  &__forms {
    height: 100%;

    @media screen and (max-width: $small-breakpoint) {
      height: auto;
    }

    @media screen and (max-width: $column-breakpoint) {
      background: transparent;
      box-shadow: none;
      padding: 0 20px;
      margin-top: 30px;
      margin-bottom: 40px;

      .separator-or {
        span {
          background: darken($ui-base-color, 8%);
        }
      }
    }

    hr {
      margin: 40px 0;
    }

    .button {
      display: block;
    }

    .subtle-hint a {
      text-decoration: none;

      &:hover,
      &:focus,
      &:active {
        text-decoration: underline;
      }
    }
  }

  #mastodon-timeline {
    display: flex;
    -webkit-overflow-scrolling: touch;
    -ms-overflow-style: -ms-autohiding-scrollbar;
    font-family: 'mastodon-font-sans-serif', sans-serif;
    font-size: 13px;
    line-height: 18px;
    font-weight: 400;
    color: $primary-text-color;
    width: 100%;
    flex: 1 1 auto;
    overflow: hidden;
    height: 100%;

    .column-header {
      color: inherit;
      font-family: inherit;
      font-size: 16px;
      line-height: inherit;
      font-weight: inherit;
      margin: 0;
      padding: 0;
    }

    .column {
      padding: 0;
      border-radius: 4px;
      overflow: hidden;
      width: 100%;
    }

    .scrollable {
      height: 400px;
    }

    p {
      font-size: inherit;
      line-height: inherit;
      font-weight: inherit;
      color: $primary-text-color;
      margin-bottom: 20px;

      &:last-child {
        margin-bottom: 0;
      }

      a {
        color: $secondary-text-color;
        text-decoration: none;
      }
    }

    .attachment-list__list {
      margin-left: 0;
      list-style: none;

      li {
        font-size: inherit;
        line-height: inherit;
        font-weight: inherit;
        margin-bottom: 0;

        a {
          color: $dark-text-color;
          text-decoration: none;

          &:hover {
            text-decoration: underline;
          }
        }
      }
    }

    @media screen and (max-width: $column-breakpoint) {
      display: none;
    }
  }

  &__features {
    & > p {
      padding-right: 60px;
    }

    .features-list {
      margin: 40px 0;
      margin-top: 30px;
    }

    &__action {
      text-align: center;
    }
  }

  .features-list {
    .features-list__row {
      display: flex;
      padding: 10px 0;
      justify-content: space-between;

      .visual {
        flex: 0 0 auto;
        display: flex;
        align-items: center;
        margin-left: 15px;

        .fa {
          display: block;
          color: $darker-text-color;
          font-size: 48px;
        }
      }

      .text {
        font-size: 16px;
        line-height: 30px;
        color: $darker-text-color;

        h6 {
          font-size: inherit;
          line-height: inherit;
          margin-bottom: 0;
        }
      }
    }

    @media screen and (min-width: $small-breakpoint) {
      display: grid;
      grid-gap: 30px;
      grid-template-columns: 1fr 1fr;
      grid-auto-columns: 50%;
      grid-auto-rows: max-content;
    }
  }

  .footer-links {
    padding-bottom: 50px;
    text-align: right;
    color: $dark-text-color;

    p {
      font-size: 14px;
    }

    a {
      color: inherit;
      text-decoration: underline;
    }
  }

  &__footer {
    margin-top: 10px;
    text-align: center;
    color: $dark-text-color;

    p {
      font-size: 14px;

      a {
        color: inherit;
        text-decoration: underline;
      }
    }
  }

  @media screen and (max-width: 840px) {
    .container-alt {
      padding: 0 20px;
    }

    .information-board {
      .container-alt {
        padding-right: 20px;
      }

      .panel {
        position: static;
        margin-top: 20px;
        width: 100%;
        border-radius: 4px;

        .panel-header {
          text-align: center;
        }
      }
    }
  }

  @media screen and (max-width: 675px) {
    .header-wrapper {
      padding-top: 0;

      &.compact {
        padding-bottom: 0;
      }

      &.compact .hero .heading {
        text-align: initial;
      }
    }

    .header .container-alt,
    .features .container-alt {
      display: block;
    }

    .header {
      .links {
        padding-top: 15px;
        background: darken($ui-base-color, 4%);

        a {
          padding: 12px 8px;
        }

        .nav {
          display: flex;
          flex-flow: row wrap;
          justify-content: space-around;
        }

        .brand img {
          left: 0;
          top: 0;
        }
      }

      .hero {
        margin-top: 30px;
        padding: 0;

        .heading {
          padding: 30px 20px;
          text-align: center;
        }

        .simple_form,
        .closed-registrations-message {
          background: darken($ui-base-color, 8%);
          width: 100%;
          border-radius: 0;
          box-sizing: border-box;
        }
      }
    }
  }

  .cta {
    margin: 20px;
  }

  &.tag-page {
    @media screen and (max-width: $column-breakpoint) {
      padding: 0;

      .container {
        padding: 0;
      }

      #mastodon-timeline {
        display: block;
        width: 100vw;
        height: 100vh;
        border-radius: 0;
      }
    }

    .grid {
      @media screen and (min-width: $small-breakpoint) {
        grid-template-columns: 33% 67%;
      }

      .column-2 {
        grid-column: 2;
        grid-row: 1;
      }
    }

    .brand {
      text-align: unset;
      padding: 0;

      img {
        height: 48px;
        width: auto;
      }
    }

    .cta {
      margin: 0;

      .button {
        margin-right: 4px;
      }
    }

    @media screen and (max-width: $column-breakpoint) {
      .grid {
        grid-gap: 0;

        .column-1 {
          grid-column: 1;
          grid-row: 1;
        }

        .column-2 {
          display: none;
        }
      }
    }
  }
}