Change about page to be mounted in the web UI (#19345)

11 files changed, 462 insertions, 1355 deletions

diff --git a/app/javascript/styles/application.scss b/app/javascript/styles/application.scss
index bbea06195..e9f596e2f 100644
--- a/app/javascript/styles/application.scss
+++ b/app/javascript/styles/application.scss
@@ -2,7 +2,6 @@
 @import 'mastodon/variables';
 @import 'fonts/roboto';
 @import 'fonts/roboto-mono';
-@import 'fonts/montserrat';
 
 @import 'mastodon/reset';
 @import 'mastodon/basics';
@@ -10,7 +9,6 @@
 @import 'mastodon/containers';
 @import 'mastodon/lists';
 @import 'mastodon/footer';
-@import 'mastodon/compact_header';
 @import 'mastodon/widgets';
 @import 'mastodon/forms';
 @import 'mastodon/accounts';
diff --git a/app/javascript/styles/contrast/diff.scss b/app/javascript/styles/contrast/diff.scss
index 841ed6648..22f5bcc94 100644
--- a/app/javascript/styles/contrast/diff.scss
+++ b/app/javascript/styles/contrast/diff.scss
@@ -13,10 +13,6 @@
   }
 }
 
-.rich-formatting a,
-.rich-formatting p a,
-.rich-formatting li a,
-.landing-page__short-description p a,
 .status__content a,
 .reply-indicator__content a {
   color: lighten($ui-highlight-color, 12%);
diff --git a/app/javascript/styles/fonts/montserrat.scss b/app/javascript/styles/fonts/montserrat.scss
deleted file mode 100644
index 170fe6542..000000000
--- a/app/javascript/styles/fonts/montserrat.scss
+++ /dev/null
@@ -1,21 +0,0 @@
-@font-face {
-  font-family: mastodon-font-display;
-  src:
-    local('Montserrat'),
-    url('../fonts/montserrat/Montserrat-Regular.woff2') format('woff2'),
-    url('../fonts/montserrat/Montserrat-Regular.woff') format('woff'),
-    url('../fonts/montserrat/Montserrat-Regular.ttf') format('truetype');
-  font-weight: 400;
-  font-display: swap;
-  font-style: normal;
-}
-
-@font-face {
-  font-family: mastodon-font-display;
-  src:
-    local('Montserrat Medium'),
-    url('../fonts/montserrat/Montserrat-Medium.ttf') format('truetype');
-  font-weight: 500;
-  font-display: swap;
-  font-style: normal;
-}
diff --git a/app/javascript/styles/mastodon-light/diff.scss b/app/javascript/styles/mastodon-light/diff.scss
index 0bc6247ef..4b27e6b4f 100644
--- a/app/javascript/styles/mastodon-light/diff.scss
+++ b/app/javascript/styles/mastodon-light/diff.scss
@@ -36,6 +36,20 @@ html {
   border-top: 0;
 }
 
+.column > .scrollable.about {
+  border-top: 1px solid lighten($ui-base-color, 8%);
+}
+
+.about__meta,
+.about__section__title {
+  background: $white;
+  border: 1px solid lighten($ui-base-color, 8%);
+}
+
+.rules-list li::before {
+  background: $ui-highlight-color;
+}
+
 .directory__card__img {
   background: lighten($ui-base-color, 12%);
 }
@@ -45,10 +59,6 @@ html {
   border-bottom: 1px solid lighten($ui-base-color, 8%);
 }
 
-.table-of-contents {
-  border: 1px solid lighten($ui-base-color, 8%);
-}
-
 .column-back-button,
 .column-header {
   background: $white;
@@ -138,11 +148,6 @@ html {
 .compose-form__poll-wrapper select,
 .search__input,
 .setting-text,
-.box-widget input[type="text"],
-.box-widget input[type="email"],
-.box-widget input[type="password"],
-.box-widget textarea,
-.statuses-grid .detailed-status,
 .report-dialog-modal__textarea,
 .audio-player {
   border: 1px solid lighten($ui-base-color, 8%);
@@ -480,52 +485,16 @@ html {
   background: $white;
 }
 
-.tabs-bar {
-  background: $white;
-  border: 1px solid lighten($ui-base-color, 8%);
-  border-bottom: 0;
-
-  @media screen and (max-width: $no-gap-breakpoint) {
-    border-top: 0;
-  }
-
-  &__link {
-    padding-bottom: 14px;
-    border-bottom-width: 1px;
-    border-bottom-color: lighten($ui-base-color, 8%);
-
-    &:hover,
-    &:active,
-    &:focus {
-      background: $ui-base-color;
-    }
-
-    &.active {
-      &:hover,
-      &:active,
-      &:focus {
-        background: transparent;
-        border-bottom-color: $ui-highlight-color;
-      }
-    }
-  }
-}
-
 // Change the default colors used on some parts of the profile pages
 .activity-stream-tabs {
   background: $account-background-color;
   border-bottom-color: lighten($ui-base-color, 8%);
 }
 
-.box-widget,
 .nothing-here,
 .page-header,
 .directory__tag > a,
-.directory__tag > div,
-.landing-page__call-to-action,
-.contact-widget,
-.landing .hero-widget__text,
-.landing-page__information.contact-widget {
+.directory__tag > div {
   background: $white;
   border: 1px solid lighten($ui-base-color, 8%);
 
@@ -536,11 +505,6 @@ html {
   }
 }
 
-.landing .hero-widget__text {
-  border-top: 0;
-  border-bottom: 0;
-}
-
 .simple_form {
   input[type="text"],
   input[type="number"],
@@ -553,26 +517,12 @@ html {
   }
 }
 
-.landing .hero-widget__footer {
-  background: $white;
-  border: 1px solid lighten($ui-base-color, 8%);
-  border-top: 0;
-
-  @media screen and (max-width: $no-gap-breakpoint) {
-    border: 0;
-  }
-}
-
 .picture-in-picture-placeholder {
   background: $white;
   border-color: lighten($ui-base-color, 8%);
   color: lighten($ui-base-color, 8%);
 }
 
-.brand__tagline {
-  color: $ui-secondary-color;
-}
-
 .directory__tag > a {
   &:hover,
   &:active,
@@ -666,8 +616,7 @@ html {
   }
 }
 
-.simple_form,
-.table-form {
+.simple_form {
   .warning {
     box-shadow: none;
     background: rgba($error-red, 0.5);
@@ -801,9 +750,6 @@ html {
 }
 
 .hero-widget,
-.box-widget,
-.contact-widget,
-.landing-page__information.contact-widget,
 .moved-account-widget,
 .memoriam-widget,
 .activity-stream,
diff --git a/app/javascript/styles/mastodon/about.scss b/app/javascript/styles/mastodon/about.scss
index 8893e3cf0..0183c43d5 100644
--- a/app/javascript/styles/mastodon/about.scss
+++ b/app/javascript/styles/mastodon/about.scss
@@ -1,7 +1,5 @@
 $maximum-width: 1235px;
 $fluid-breakpoint: $maximum-width + 20px;
-$column-breakpoint: 700px;
-$small-breakpoint: 960px;
 
 .container {
   box-sizing: border-box;
@@ -15,892 +13,44 @@ $small-breakpoint: 960px;
   }
 }
 
-.rich-formatting {
-  font-family: $font-sans-serif, sans-serif;
-  font-size: 14px;
-  font-weight: 400;
-  line-height: 1.7;
-  word-wrap: break-word;
-  color: $darker-text-color;
-
-  a {
-    color: $highlight-text-color;
-    text-decoration: underline;
-
-    &:hover,
-    &:focus,
-    &:active {
-      text-decoration: none;
-    }
-  }
-
-  p,
-  li {
-    color: $darker-text-color;
-  }
-
-  p {
-    margin-top: 0;
-    margin-bottom: 0.85em;
-
-    &:last-child {
-      margin-bottom: 0;
-    }
-  }
-
-  strong {
-    font-weight: 700;
-    color: $secondary-text-color;
-  }
-
-  em {
-    font-style: italic;
-    color: $secondary-text-color;
-  }
-
-  code {
-    font-size: 0.85em;
-    background: darken($ui-base-color, 8%);
-    border-radius: 4px;
-    padding: 0.2em 0.3em;
-  }
-
-  h1,
-  h2,
-  h3,
-  h4,
-  h5,
-  h6 {
-    font-family: $font-display, sans-serif;
-    margin-top: 1.275em;
-    margin-bottom: 0.85em;
-    font-weight: 500;
-    color: $secondary-text-color;
-  }
-
-  h1 {
-    font-size: 2em;
-  }
-
-  h2 {
-    font-size: 1.75em;
-  }
-
-  h3 {
-    font-size: 1.5em;
-  }
-
-  h4 {
-    font-size: 1.25em;
-  }
-
-  h5,
-  h6 {
-    font-size: 1em;
-  }
-
-  ul {
-    list-style: disc;
-  }
-
-  ol {
-    list-style: decimal;
-  }
-
-  ul,
-  ol {
-    margin: 0;
-    padding: 0;
-    padding-left: 2em;
-    margin-bottom: 0.85em;
-
-    &[type='a'] {
-      list-style-type: lower-alpha;
-    }
-
-    &[type='i'] {
-      list-style-type: lower-roman;
-    }
-  }
-
-  hr {
-    width: 100%;
-    height: 0;
-    border: 0;
-    border-bottom: 1px solid lighten($ui-base-color, 4%);
-    margin: 1.7em 0;
-
-    &.spacer {
-      height: 1px;
-      border: 0;
-    }
-  }
-
-  table {
-    width: 100%;
-    border-collapse: collapse;
-    break-inside: auto;
-    margin-top: 24px;
-    margin-bottom: 32px;
-
-    thead tr,
-    tbody tr {
-      border-bottom: 1px solid lighten($ui-base-color, 4%);
-      font-size: 1em;
-      line-height: 1.625;
-      font-weight: 400;
-      text-align: left;
-      color: $darker-text-color;
-    }
-
-    thead tr {
-      border-bottom-width: 2px;
-      line-height: 1.5;
-      font-weight: 500;
-      color: $dark-text-color;
-    }
-
-    th,
-    td {
-      padding: 8px;
-      align-self: flex-start;
-      align-items: flex-start;
-      word-break: break-all;
-
-      &.nowrap {
-        width: 25%;
-        position: relative;
-
-        &::before {
-          content: ' ';
-          visibility: hidden;
-        }
-
-        span {
-          position: absolute;
-          left: 8px;
-          right: 8px;
-          white-space: nowrap;
-          overflow: hidden;
-          text-overflow: ellipsis;
-        }
-      }
-    }
-  }
-
-  & > :first-child {
-    margin-top: 0;
-  }
+.brand {
+  position: relative;
+  text-decoration: none;
 }
 
-.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: $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-family: $font-display, sans-serif;
-      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: $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;
-      }
-    }
-  }
-}
+.rules-list {
+  font-size: 15px;
+  line-height: 22px;
+  color: $primary-text-color;
+  counter-reset: list-counter;
 
-.landing-page {
-  p,
   li {
-    font-family: $font-sans-serif, sans-serif;
-    font-size: 16px;
-    font-weight: 400;
-    line-height: 30px;
-    margin-bottom: 12px;
-    color: $darker-text-color;
-
-    a {
-      color: $highlight-text-color;
-      text-decoration: underline;
-    }
-  }
-
-  em {
-    display: inline;
-    margin: 0;
-    padding: 0;
-    font-weight: 700;
-    background: transparent;
-    font-family: inherit;
-    font-size: inherit;
-    line-height: inherit;
-    color: lighten($darker-text-color, 10%);
-  }
-
-  h1 {
-    font-family: $font-display, sans-serif;
-    font-size: 26px;
-    line-height: 30px;
-    font-weight: 500;
-    margin-bottom: 20px;
-    color: $secondary-text-color;
-
-    small {
-      font-family: $font-sans-serif, sans-serif;
-      display: block;
-      font-size: 18px;
-      font-weight: 400;
-      color: lighten($darker-text-color, 10%);
-    }
-  }
-
-  h2 {
-    font-family: $font-display, sans-serif;
-    font-size: 22px;
-    line-height: 26px;
-    font-weight: 500;
-    margin-bottom: 20px;
-    color: $secondary-text-color;
-  }
-
-  h3 {
-    font-family: $font-display, sans-serif;
-    font-size: 18px;
-    line-height: 24px;
-    font-weight: 500;
-    margin-bottom: 20px;
-    color: $secondary-text-color;
-  }
-
-  h4 {
-    font-family: $font-display, sans-serif;
-    font-size: 16px;
-    line-height: 24px;
-    font-weight: 500;
-    margin-bottom: 20px;
-    color: $secondary-text-color;
-  }
-
-  h5 {
-    font-family: $font-display, sans-serif;
-    font-size: 14px;
-    line-height: 24px;
-    font-weight: 500;
-    margin-bottom: 20px;
-    color: $secondary-text-color;
-  }
-
-  h6 {
-    font-family: $font-display, sans-serif;
-    font-size: 12px;
-    line-height: 24px;
+    position: relative;
+    border-bottom: 1px solid lighten($ui-base-color, 8%);
+    padding: 1em 1.75em;
+    padding-left: 3em;
     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, 0.6);
-    margin: 20px 0;
-
-    &.spacer {
-      height: 1px;
-      border: 0;
-    }
-  }
-
-  &__information,
-  &__forms {
-    padding: 20px;
-  }
-
-  &__call-to-action {
-    background: $ui-base-color;
-    border-radius: 4px;
-    padding: 25px 40px;
-    overflow: hidden;
-    box-sizing: border-box;
-
-    .row {
-      width: 100%;
-      display: flex;
-      flex-direction: row-reverse;
-      flex-wrap: nowrap;
-      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;
-    }
-
-    strong {
+    counter-increment: list-counter;
+
+    &::before {
+      content: counter(list-counter);
+      position: absolute;
+      left: 0;
+      top: 50%;
+      transform: translateY(-50%);
+      background: $highlight-text-color;
+      color: $ui-base-color;
+      border-radius: 50%;
+      width: 4ch;
+      height: 4ch;
       font-weight: 500;
-      color: lighten($darker-text-color, 10%);
-    }
-
-    .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;
-      }
-
-      .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;
+      justify-content: center;
       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;
-    }
-  }
-
-  @media screen and (max-width: 840px) {
-    .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;
-    }
-  }
-
-  .cta {
-    margin: 20px;
-  }
-}
-
-.landing {
-  margin-bottom: 100px;
-
-  @media screen and (max-width: 738px) {
-    margin-bottom: 0;
-  }
-
-  &__brand {
-    display: flex;
-    justify-content: center;
-    align-items: center;
-    padding: 50px;
-
-    .logo {
-      fill: $primary-text-color;
-      height: 52px;
-    }
-
-    @media screen and (max-width: $no-gap-breakpoint) {
-      padding: 0;
-      margin-bottom: 30px;
-    }
-  }
-
-  .directory {
-    margin-top: 30px;
-    background: transparent;
-    box-shadow: none;
-    border-radius: 0;
-  }
-
-  .hero-widget {
-    margin-top: 30px;
-    margin-bottom: 0;
-
-    h4 {
-      padding: 10px;
-      text-transform: uppercase;
-      font-weight: 700;
-      font-size: 13px;
-      color: $darker-text-color;
-    }
-
-    &__text {
-      border-radius: 0;
-      padding-bottom: 0;
-    }
-
-    &__footer {
-      background: $ui-base-color;
-      padding: 10px;
-      border-radius: 0 0 4px 4px;
-      display: flex;
-
-      &__column {
-        flex: 1 1 50%;
-        overflow-x: hidden;
-      }
-    }
-
-    .account {
-      padding: 10px 0;
-      border-bottom: 0;
-
-      .account__display-name {
-        display: flex;
-        align-items: center;
-      }
-    }
-
-    &__counters__wrapper {
-      display: flex;
-    }
-
-    &__counter {
-      padding: 10px;
-      width: 50%;
-
-      strong {
-        font-family: $font-display, sans-serif;
-        font-size: 15px;
-        font-weight: 700;
-        display: block;
-      }
-
-      span {
-        font-size: 14px;
-        color: $darker-text-color;
-      }
-    }
-  }
-
-  .simple_form .user_agreement .label_input > label {
-    font-weight: 400;
-    color: $darker-text-color;
-  }
-
-  .simple_form p.lead {
-    color: $darker-text-color;
-    font-size: 15px;
-    line-height: 20px;
-    font-weight: 400;
-    margin-bottom: 25px;
-  }
-
-  &__grid {
-    max-width: 960px;
-    margin: 0 auto;
-    display: grid;
-    grid-template-columns: minmax(0, 50%) minmax(0, 50%);
-    grid-gap: 30px;
-
-    @media screen and (max-width: 738px) {
-      grid-template-columns: minmax(0, 100%);
-      grid-gap: 10px;
-
-      &__column-login {
-        grid-row: 1;
-        display: flex;
-        flex-direction: column;
-
-        .box-widget {
-          order: 2;
-          flex: 0 0 auto;
-        }
-
-        .hero-widget {
-          margin-top: 0;
-          margin-bottom: 10px;
-          order: 1;
-          flex: 0 0 auto;
-        }
-      }
-
-      &__column-registration {
-        grid-row: 2;
-      }
-
-      .directory {
-        margin-top: 10px;
-      }
-    }
-
-    @media screen and (max-width: $no-gap-breakpoint) {
-      grid-gap: 0;
-
-      .hero-widget {
-        display: block;
-        margin-bottom: 0;
-        box-shadow: none;
-
-        &__img,
-        &__img img,
-        &__footer {
-          border-radius: 0;
-        }
-      }
-
-      .hero-widget,
-      .box-widget,
-      .directory__tag {
-        border-bottom: 1px solid lighten($ui-base-color, 8%);
-      }
-
-      .directory {
-        margin-top: 0;
-
-        &__tag {
-          margin-bottom: 0;
-
-          & > a,
-          & > div {
-            border-radius: 0;
-            box-shadow: none;
-          }
-
-          &:last-child {
-            border-bottom: 0;
-          }
-        }
-      }
-    }
-  }
-}
-
-.brand {
-  position: relative;
-  text-decoration: none;
-}
-
-.brand__tagline {
-  display: block;
-  position: absolute;
-  bottom: -10px;
-  left: 50px;
-  width: 300px;
-  color: $ui-primary-color;
-  text-decoration: none;
-  font-size: 14px;
-
-  @media screen and (max-width: $no-gap-breakpoint) {
-    position: static;
-    width: auto;
-    margin-top: 20px;
-    color: $dark-text-color;
-  }
-}
-
-.rules-list {
-  background: darken($ui-base-color, 2%);
-  border: 1px solid darken($ui-base-color, 8%);
-  border-radius: 4px;
-  padding: 0.5em 2.5em !important;
-  margin-top: 1.85em !important;
-
-  li {
-    border-bottom: 1px solid lighten($ui-base-color, 4%);
-    color: $dark-text-color;
-    padding: 1em;
-
     &:last-child {
       border-bottom: 0;
     }
   }
-
-  &__text {
-    color: $primary-text-color;
-  }
 }
diff --git a/app/javascript/styles/mastodon/compact_header.scss b/app/javascript/styles/mastodon/compact_header.scss
deleted file mode 100644
index 4980ab5f1..000000000
--- a/app/javascript/styles/mastodon/compact_header.scss
+++ /dev/null
@@ -1,34 +0,0 @@
-.compact-header {
-  h1 {
-    font-size: 24px;
-    line-height: 28px;
-    color: $darker-text-color;
-    font-weight: 500;
-    margin-bottom: 20px;
-    padding: 0 10px;
-    word-wrap: break-word;
-
-    @media screen and (max-width: 740px) {
-      text-align: center;
-      padding: 20px 10px 0;
-    }
-
-    a {
-      color: inherit;
-      text-decoration: none;
-    }
-
-    small {
-      font-weight: 400;
-      color: $secondary-text-color;
-    }
-
-    img {
-      display: inline-block;
-      margin-bottom: -5px;
-      margin-right: 15px;
-      width: 36px;
-      height: 36px;
-    }
-  }
-}
diff --git a/app/javascript/styles/mastodon/components.scss b/app/javascript/styles/mastodon/components.scss
index a8919b9cb..d4657d180 100644
--- a/app/javascript/styles/mastodon/components.scss
+++ b/app/javascript/styles/mastodon/components.scss
@@ -3261,6 +3261,7 @@ $ui-header-height: 55px;
     padding: 10px;
     padding-top: 20px;
     z-index: 1;
+    font-size: 13px;
 
     ul {
       margin-bottom: 10px;
@@ -3272,7 +3273,6 @@ $ui-header-height: 55px;
 
     p {
       color: $dark-text-color;
-      font-size: 13px;
       margin-bottom: 20px;
 
       a {
@@ -8266,79 +8266,202 @@ noscript {
 
   &__body {
     margin-top: 20px;
-    color: $secondary-text-color;
-    font-size: 15px;
-    line-height: 22px;
+  }
+}
 
-    h1,
-    p,
-    ul,
-    ol {
-      margin-bottom: 20px;
-    }
+.prose {
+  color: $secondary-text-color;
+  font-size: 15px;
+  line-height: 22px;
 
-    ul {
-      list-style: disc;
-    }
+  p,
+  ul,
+  ol {
+    margin-top: 1.25em;
+    margin-bottom: 1.25em;
+  }
 
-    ol {
-      list-style: decimal;
-    }
+  img {
+    margin-top: 2em;
+    margin-bottom: 2em;
+  }
 
-    ul,
-    ol {
-      padding-left: 1em;
+  video {
+    margin-top: 2em;
+    margin-bottom: 2em;
+  }
+
+  figure {
+    margin-top: 2em;
+    margin-bottom: 2em;
+
+    figcaption {
+      font-size: 0.875em;
+      line-height: 1.4285714;
+      margin-top: 0.8571429em;
     }
+  }
 
-    li {
-      margin-bottom: 10px;
+  figure > * {
+    margin-top: 0;
+    margin-bottom: 0;
+  }
 
-      &::marker {
-        color: $darker-text-color;
-      }
+  h1 {
+    font-size: 1.5em;
+    margin-top: 0;
+    margin-bottom: 1em;
+    line-height: 1.33;
+  }
 
-      &:last-child {
-        margin-bottom: 0;
-      }
-    }
+  h2 {
+    font-size: 1.25em;
+    margin-top: 1.6em;
+    margin-bottom: 0.6em;
+    line-height: 1.6;
+  }
+
+  h3,
+  h4,
+  h5,
+  h6 {
+    margin-top: 1.5em;
+    margin-bottom: 0.5em;
+    line-height: 1.5;
+  }
 
-    h1 {
-      color: $primary-text-color;
-      font-size: 19px;
-      line-height: 24px;
-      font-weight: 700;
-      margin-top: 30px;
+  ol {
+    counter-reset: list-counter;
+  }
 
-      &:first-child {
-        margin-top: 0;
-      }
-    }
+  li {
+    margin-top: 0.5em;
+    margin-bottom: 0.5em;
+  }
 
-    strong {
-      font-weight: 700;
-      color: $primary-text-color;
-    }
+  ol > li {
+    counter-increment: list-counter;
 
-    em {
-      font-style: italic;
+    &::before {
+      content: counter(list-counter) ".";
+      position: absolute;
+      left: 0;
     }
+  }
 
-    a {
-      color: $highlight-text-color;
-      text-decoration: underline;
+  ul > li::before {
+    content: "";
+    position: absolute;
+    background-color: $darker-text-color;
+    border-radius: 50%;
+    width: 0.375em;
+    height: 0.375em;
+    top: 0.5em;
+    left: 0.25em;
+  }
 
-      &:focus,
-      &:hover,
-      &:active {
-        text-decoration: none;
-      }
-    }
+  ul > li,
+  ol > li {
+    position: relative;
+    padding-left: 1.75em;
+  }
 
-    hr {
-      border: 1px solid lighten($ui-base-color, 4%);
-      margin: 30px 0;
+  & > ul > li p {
+    margin-top: 0.75em;
+    margin-bottom: 0.75em;
+  }
+
+  & > ul > li > *:first-child {
+    margin-top: 1.25em;
+  }
+
+  & > ul > li > *:last-child {
+    margin-bottom: 1.25em;
+  }
+
+  & > ol > li > *:first-child {
+    margin-top: 1.25em;
+  }
+
+  & > ol > li > *:last-child {
+    margin-bottom: 1.25em;
+  }
+
+  ul ul,
+  ul ol,
+  ol ul,
+  ol ol {
+    margin-top: 0.75em;
+    margin-bottom: 0.75em;
+  }
+
+  h1,
+  h2,
+  h3,
+  h4,
+  h5,
+  h6,
+  strong,
+  b {
+    color: $primary-text-color;
+    font-weight: 700;
+  }
+
+  em,
+  i {
+    font-style: italic;
+  }
+
+  a {
+    color: $highlight-text-color;
+    text-decoration: underline;
+
+    &:focus,
+    &:hover,
+    &:active {
+      text-decoration: none;
     }
   }
+
+  code {
+    font-size: 0.875em;
+    background: darken($ui-base-color, 8%);
+    border-radius: 4px;
+    padding: 0.2em 0.3em;
+  }
+
+  hr {
+    border: 0;
+    border-top: 1px solid lighten($ui-base-color, 4%);
+    margin-top: 3em;
+    margin-bottom: 3em;
+  }
+
+  hr + * {
+    margin-top: 0;
+  }
+
+  h2 + * {
+    margin-top: 0;
+  }
+
+  h3 + * {
+    margin-top: 0;
+  }
+
+  h4 + *,
+  h5 + *,
+  h6 + * {
+    margin-top: 0;
+  }
+
+  & > :first-child {
+    margin-top: 0;
+  }
+
+  & > :last-child {
+    margin-bottom: 0;
+  }
 }
 
 .dismissable-banner {
@@ -8365,3 +8488,242 @@ noscript {
     justify-content: center;
   }
 }
+
+.image {
+  position: relative;
+  overflow: hidden;
+
+  &__preview {
+    position: absolute;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    object-fit: cover;
+  }
+
+  &.loaded &__preview {
+    display: none;
+  }
+
+  img {
+    display: block;
+    width: 100%;
+    height: 100%;
+    object-fit: cover;
+    border: 0;
+    background: transparent;
+    opacity: 0;
+  }
+
+  &.loaded img {
+    opacity: 1;
+  }
+}
+
+.about {
+  padding: 20px;
+
+  @media screen and (min-width: $no-gap-breakpoint) {
+    border-radius: 4px;
+  }
+
+  &__header {
+    margin-bottom: 30px;
+
+    &__hero {
+      width: 100%;
+      height: auto;
+      aspect-ratio: 1.9;
+      background: lighten($ui-base-color, 4%);
+      border-radius: 8px;
+      margin-bottom: 30px;
+    }
+
+    h1,
+    p {
+      text-align: center;
+    }
+
+    h1 {
+      font-size: 24px;
+      line-height: 1.5;
+      font-weight: 700;
+      margin-bottom: 10px;
+    }
+
+    p {
+      font-size: 16px;
+      line-height: 24px;
+      font-weight: 400;
+      color: $darker-text-color;
+    }
+  }
+
+  &__meta {
+    background: lighten($ui-base-color, 4%);
+    border-radius: 4px;
+    display: flex;
+    margin-bottom: 30px;
+    font-size: 15px;
+
+    &__column {
+      box-sizing: border-box;
+      width: 50%;
+      padding: 20px;
+    }
+
+    &__divider {
+      width: 0;
+      border: 0;
+      border-style: solid;
+      border-color: lighten($ui-base-color, 8%);
+      border-left-width: 1px;
+      min-height: calc(100% - 60px);
+      flex: 0 0 auto;
+    }
+
+    h4 {
+      font-size: 15px;
+      text-transform: uppercase;
+      color: $darker-text-color;
+      font-weight: 500;
+      margin-bottom: 20px;
+    }
+
+    @media screen and (max-width: 600px) {
+      display: block;
+
+      h4 {
+        text-align: center;
+      }
+
+      &__column {
+        width: 100%;
+        display: flex;
+        flex-direction: column;
+        align-items: center;
+      }
+
+      &__divider {
+        min-height: 0;
+        width: 100%;
+        border-left-width: 0;
+        border-top-width: 1px;
+      }
+    }
+
+    .layout-multiple-columns & {
+      display: block;
+
+      h4 {
+        text-align: center;
+      }
+
+      &__column {
+        width: 100%;
+        display: flex;
+        flex-direction: column;
+        align-items: center;
+      }
+
+      &__divider {
+        min-height: 0;
+        width: 100%;
+        border-left-width: 0;
+        border-top-width: 1px;
+      }
+    }
+  }
+
+  &__mail {
+    color: $primary-text-color;
+    text-decoration: none;
+    font-weight: 500;
+
+    &:hover,
+    &:focus,
+    &:active {
+      text-decoration: underline;
+    }
+  }
+
+  .getting-started__footer {
+    padding: 0;
+    margin-top: 60px;
+    text-align: center;
+    font-size: 15px;
+    line-height: 22px;
+
+    @media screen and (min-width: $no-gap-breakpoint) {
+      display: none;
+    }
+  }
+
+  .account {
+    padding: 0;
+    border: 0;
+  }
+
+  .account__avatar-wrapper {
+    margin-left: 0;
+  }
+
+  .account__relationship {
+    display: none;
+  }
+
+  &__section {
+    margin-bottom: 10px;
+
+    &__title {
+      font-size: 17px;
+      font-weight: 600;
+      line-height: 22px;
+      padding: 20px;
+      border-radius: 4px;
+      background: lighten($ui-base-color, 4%);
+      color: $highlight-text-color;
+      cursor: pointer;
+    }
+
+    &.active &__title {
+      border-radius: 4px 4px 0 0;
+    }
+
+    &__body {
+      border: 1px solid lighten($ui-base-color, 4%);
+      border-top: 0;
+      padding: 20px;
+      font-size: 15px;
+      line-height: 22px;
+    }
+  }
+
+  &__domain-blocks {
+    margin-top: 30px;
+    width: 100%;
+    border-collapse: collapse;
+    break-inside: auto;
+
+    th {
+      text-align: left;
+      font-weight: 500;
+      color: $darker-text-color;
+    }
+
+    thead tr,
+    tbody tr {
+      border-bottom: 1px solid lighten($ui-base-color, 8%);
+    }
+
+    tbody tr:last-child {
+      border-bottom: 0;
+    }
+
+    th,
+    td {
+      padding: 8px;
+    }
+  }
+}
diff --git a/app/javascript/styles/mastodon/containers.scss b/app/javascript/styles/mastodon/containers.scss
index 01ee56219..8e5ed03f0 100644
--- a/app/javascript/styles/mastodon/containers.scss
+++ b/app/javascript/styles/mastodon/containers.scss
@@ -30,7 +30,6 @@
       outline: 0;
       padding: 12px 16px;
       line-height: 32px;
-      font-family: $font-display, sans-serif;
       font-weight: 500;
       font-size: 14px;
     }
diff --git a/app/javascript/styles/mastodon/dashboard.scss b/app/javascript/styles/mastodon/dashboard.scss
index c21fc9eba..f25765d1d 100644
--- a/app/javascript/styles/mastodon/dashboard.scss
+++ b/app/javascript/styles/mastodon/dashboard.scss
@@ -38,7 +38,6 @@
     font-weight: 500;
     font-size: 24px;
     color: $primary-text-color;
-    font-family: $font-display, sans-serif;
     margin-bottom: 20px;
     line-height: 30px;
   }
diff --git a/app/javascript/styles/mastodon/forms.scss b/app/javascript/styles/mastodon/forms.scss
index 3d67f3b56..69a0b22d6 100644
--- a/app/javascript/styles/mastodon/forms.scss
+++ b/app/javascript/styles/mastodon/forms.scss
@@ -139,18 +139,9 @@ code {
   }
 
   .rules-list {
-    list-style: decimal;
     font-size: 17px;
     line-height: 22px;
-    font-weight: 500;
-    background: transparent;
-    border: 0;
-    padding: 0.5em 1em !important;
     margin-bottom: 30px;
-
-    li {
-      border-color: lighten($ui-base-color, 8%);
-    }
   }
 
   .hint {
@@ -603,41 +594,6 @@ code {
       }
     }
   }
-
-  &__overlay-area {
-    position: relative;
-
-    &__blurred form {
-      filter: blur(2px);
-    }
-
-    &__overlay {
-      position: absolute;
-      top: 0;
-      left: 0;
-      width: 100%;
-      height: 100%;
-      display: flex;
-      justify-content: center;
-      align-items: center;
-      background: rgba($ui-base-color, 0.65);
-      border-radius: 4px;
-      margin-left: -4px;
-      margin-top: -4px;
-      padding: 4px;
-
-      &__content {
-        text-align: center;
-
-        &.rich-formatting {
-          &,
-          p {
-            color: $primary-text-color;
-          }
-        }
-      }
-    }
-  }
 }
 
 .block-icon {
@@ -908,24 +864,7 @@ code {
   }
 }
 
-.table-form {
-  p {
-    margin-bottom: 15px;
-
-    strong {
-      font-weight: 500;
-
-      @each $lang in $cjk-langs {
-        &:lang(#{$lang}) {
-          font-weight: 700;
-        }
-      }
-    }
-  }
-}
-
-.simple_form,
-.table-form {
+.simple_form {
   .warning {
     box-sizing: border-box;
     background: rgba($error-value-color, 0.5);
diff --git a/app/javascript/styles/mastodon/widgets.scss b/app/javascript/styles/mastodon/widgets.scss
index 43284eb48..260a97c6d 100644
--- a/app/javascript/styles/mastodon/widgets.scss
+++ b/app/javascript/styles/mastodon/widgets.scss
@@ -112,13 +112,6 @@
   }
 }
 
-.box-widget {
-  padding: 20px;
-  border-radius: 4px;
-  background: $ui-base-color;
-  box-shadow: 0 0 15px rgba($base-shadow-color, 0.2);
-}
-
 .placeholder-widget {
   padding: 16px;
   border-radius: 4px;
@@ -128,47 +121,6 @@
   margin-bottom: 10px;
 }
 
-.contact-widget {
-  min-height: 100%;
-  font-size: 15px;
-  color: $darker-text-color;
-  line-height: 20px;
-  word-wrap: break-word;
-  font-weight: 400;
-  padding: 0;
-
-  h4 {
-    padding: 10px;
-    text-transform: uppercase;
-    font-weight: 700;
-    font-size: 13px;
-    color: $darker-text-color;
-  }
-
-  .account {
-    border-bottom: 0;
-    padding: 10px 0;
-    padding-top: 5px;
-  }
-
-  & > a {
-    display: inline-block;
-    padding: 10px;
-    padding-top: 0;
-    color: $darker-text-color;
-    text-decoration: none;
-    white-space: nowrap;
-    overflow: hidden;
-    text-overflow: ellipsis;
-
-    &:hover,
-    &:focus,
-    &:active {
-      text-decoration: underline;
-    }
-  }
-}
-
 .moved-account-widget {
   padding: 15px;
   padding-bottom: 20px;
@@ -249,37 +201,6 @@
   margin-bottom: 10px;
 }
 
-.page-header {
-  background: lighten($ui-base-color, 8%);
-  box-shadow: 0 0 15px rgba($base-shadow-color, 0.2);
-  border-radius: 4px;
-  padding: 60px 15px;
-  text-align: center;
-  margin: 10px 0;
-
-  h1 {
-    color: $primary-text-color;
-    font-size: 36px;
-    line-height: 1.1;
-    font-weight: 700;
-    margin-bottom: 10px;
-  }
-
-  p {
-    font-size: 15px;
-    color: $darker-text-color;
-  }
-
-  @media screen and (max-width: $no-gap-breakpoint) {
-    margin-top: 0;
-    background: lighten($ui-base-color, 4%);
-
-    h1 {
-      font-size: 24px;
-    }
-  }
-}
-
 .directory {
   background: $ui-base-color;
   border-radius: 4px;
@@ -366,34 +287,6 @@
   }
 }
 
-.avatar-stack {
-  display: flex;
-  justify-content: flex-end;
-
-  .account__avatar {
-    flex: 0 0 auto;
-    width: 36px;
-    height: 36px;
-    border-radius: 50%;
-    position: relative;
-    margin-left: -10px;
-    background: darken($ui-base-color, 8%);
-    border: 2px solid $ui-base-color;
-
-    &:nth-child(1) {
-      z-index: 1;
-    }
-
-    &:nth-child(2) {
-      z-index: 2;
-    }
-
-    &:nth-child(3) {
-      z-index: 3;
-    }
-  }
-}
-
 .accounts-table {
   width: 100%;
 
@@ -495,11 +388,7 @@
 
 .moved-account-widget,
 .memoriam-widget,
-.box-widget,
-.contact-widget,
-.landing-page__information.contact-widget,
-.directory,
-.page-header {
+.directory {
   @media screen and (max-width: $no-gap-breakpoint) {
     margin-bottom: 0;
     box-shadow: none;
@@ -507,88 +396,6 @@
   }
 }
 
-$maximum-width: 1235px;
-$fluid-breakpoint: $maximum-width + 20px;
-
-.statuses-grid {
-  min-height: 600px;
-
-  @media screen and (max-width: 640px) {
-    width: 100% !important; // Masonry layout is unnecessary at this width
-  }
-
-  &__item {
-    width: math.div(960px - 20px, 3);
-
-    @media screen and (max-width: $fluid-breakpoint) {
-      width: math.div(940px - 20px, 3);
-    }
-
-    @media screen and (max-width: 640px) {
-      width: 100%;
-    }
-
-    @media screen and (max-width: $no-gap-breakpoint) {
-      width: 100vw;
-    }
-  }
-
-  .detailed-status {
-    border-radius: 4px;
-
-    @media screen and (max-width: $no-gap-breakpoint) {
-      border-top: 1px solid lighten($ui-base-color, 16%);
-    }
-
-    &.compact {
-      .detailed-status__meta {
-        margin-top: 15px;
-      }
-
-      .status__content {
-        font-size: 15px;
-        line-height: 20px;
-
-        .emojione {
-          width: 20px;
-          height: 20px;
-          margin: -3px 0 0;
-        }
-
-        .status__content__spoiler-link {
-          line-height: 20px;
-          margin: 0;
-        }
-      }
-
-      .media-gallery,
-      .status-card,
-      .video-player {
-        margin-top: 15px;
-      }
-    }
-  }
-}
-
-.notice-widget {
-  margin-bottom: 10px;
-  color: $darker-text-color;
-
-  p {
-    margin-bottom: 10px;
-
-    &:last-child {
-      margin-bottom: 0;
-    }
-  }
-
-  a {
-    font-size: 14px;
-    line-height: 20px;
-  }
-}
-
-.notice-widget,
 .placeholder-widget {
   a {
     text-decoration: none;
@@ -602,37 +409,3 @@ $fluid-breakpoint: $maximum-width + 20px;
     }
   }
 }
-
-.table-of-contents {
-  background: darken($ui-base-color, 4%);
-  min-height: 100%;
-  font-size: 14px;
-  border-radius: 4px;
-
-  li a {
-    display: block;
-    font-weight: 500;
-    padding: 15px;
-    white-space: nowrap;
-    overflow: hidden;
-    text-overflow: ellipsis;
-    text-decoration: none;
-    color: $primary-text-color;
-    border-bottom: 1px solid lighten($ui-base-color, 4%);
-
-    &:hover,
-    &:focus,
-    &:active {
-      text-decoration: underline;
-    }
-  }
-
-  li:last-child a {
-    border-bottom: 0;
-  }
-
-  li ul {
-    padding-left: 20px;
-    border-bottom: 1px solid lighten($ui-base-color, 4%);
-  }
-}