.rhc-addon {
  --rhc-addon-ink: var(--riko-ink);
  --rhc-addon-muted: var(--riko-muted);
  --rhc-addon-line: var(--riko-line);
  --rhc-addon-accent: var(--riko-action);
  background: transparent;
  border: 0;
  border-top: 2px solid var(--rhc-addon-accent);
  border-radius: 0;
  box-shadow: none;
  color: var(--rhc-addon-ink);
  margin-block: 2rem 0;
  padding-bottom: 1.25rem;
  min-width: 0;
  font-size: 16px;
  line-height: 1.55;
}

.riko-addon__comments > .rhc-addon {
  margin-block: 0;
}

.rhc-addon *,
.rhc-addon *::before,
.rhc-addon *::after {
  box-sizing: border-box;
}

.rhc-addon [hidden] {
  display: none !important;
}

.rhc-addon__heading {
  padding: 1.25rem 0 1rem;
}

.rhc-addon__heading h2,
#tm-content .rhc-addon__heading h2 {
  color: var(--rhc-addon-ink) !important;
  font-size: 24px !important;
  font-weight: 700 !important;
  font-family: inherit !important;
  line-height: 1.3;
  margin: 0 0 0.4rem;
}

.rhc-addon__heading > p:last-child {
  color: var(--rhc-addon-muted);
  font-size: 15px;
  margin: 0;
  max-width: 48rem;
}

.rhc-addon > [data-rhc-addon-content] {
  padding: 0;
}

.rhc-addon__status {
  margin: 0;
  padding: 0.5rem 0;
}

.rhc-addon__status--loading {
  color: var(--rhc-addon-muted);
}

.rhc-addon__status--error,
.rhc-addon__status--success {
  border-radius: 0.35rem;
  font-weight: 650;
  margin: 0 0 1rem;
  padding: 0.7rem 0.85rem;
}

/* palette-exception: semantic-state: Red identifies destructive actions, validation failures or blocked operations. */
.rhc-addon__status--error {
  background: var(--riko-danger-surface);
  color: var(--riko-danger);
}

/* palette-exception: semantic-state: Green identifies confirmed availability or completed operations. */
.rhc-addon__status--success {
  background: var(--riko-success-surface);
  color: var(--riko-success);
}

/* palette-exception: semantic-state: State and destructive controls retain their distinct meaning and disabled contrast. */
.rhc-addon__status--error:focus {
  outline: 3px solid var(--riko-danger);
  outline-offset: 2px;
}

.rhc-addon h3,
#tm-content .rhc-addon h3 {
  color: var(--rhc-addon-ink) !important;
  font-family: inherit !important;
  line-height: 1.3;
}

.rhc-addon-ask,
.rhc-addon-login {
  padding: 0;
  margin: 0;
}

.rhc-addon-ask__note,
.rhc-addon-login__intro {
  color: var(--rhc-addon-muted);
  font-size: 14px;
  margin: 0.6rem 0 0;
}

.rhc-addon-ask__disclosure > summary,
.rhc-addon-comment-panel > summary {
  list-style: none;
}

.rhc-addon-ask__disclosure > summary::-webkit-details-marker,
.rhc-addon-comment-panel > summary::-webkit-details-marker {
  display: none;
}

.rhc-addon-ask__disclosure > summary::after,
.rhc-addon-comment-panel > summary::after {
  content: "+";
  font-size: 1.1em;
  margin-left: 0.55rem;
}

.rhc-addon-ask__disclosure[open] > summary::after,
.rhc-addon-comment-panel[open] > summary::after {
  content: "−";
}

.rhc-addon-ask__disclosure > summary:focus-visible,
.rhc-addon-comment-panel > summary:focus-visible {
  outline: 3px solid var(--riko-focus);
  outline-offset: 3px;
}

.rhc-addon-ask__disclosure .rhc-addon-form {
  margin-top: 1rem;
  padding: 1rem;
  background: var(--riko-surface-soft);
  border: 1px solid var(--rhc-addon-line);
  border-radius: 6px;
}

.rhc-addon-login {
  align-items: center;
  display: flex;
  gap: 0.75rem 1.5rem;
  flex-wrap: wrap;
}

.rhc-addon-login p {
  flex: 1 1 18rem;
  margin: 0;
}

.rhc-addon-form label,
.rhc-addon-comment label {
  display: block;
  font-weight: 650;
  margin-bottom: 0.42rem;
}

.rhc-addon textarea {
  background: var(--riko-surface);
  border: 1px solid var(--riko-line-strong);
  border-radius: 0.35rem;
  color: var(--rhc-addon-ink);
  font: inherit;
  font-size: 16px !important;
  line-height: 1.5;
  min-height: 8rem;
  padding: 0.72rem 0.8rem;
  resize: vertical;
  width: 100%;
}

.rhc-addon .rhc-addon-form__types {
  border: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.4rem;
  margin: 0 0 1rem;
  min-width: 0;
  padding: 0;
}

.rhc-addon .rhc-addon-form__types legend {
  border: 0;
  color: var(--rhc-addon-muted);
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 0.3rem;
  padding: 0;
}

.rhc-addon .rhc-addon-form__type {
  align-items: center;
  cursor: pointer;
  display: inline-flex;
  gap: 0.5rem;
  font-weight: 600;
  margin: 0;
  min-height: 44px;
}

.rhc-addon .rhc-addon-form__type input {
  accent-color: var(--rhc-addon-accent);
  flex: 0 0 auto;
  height: 1.1rem;
  margin: 0;
  width: 1.1rem;
}

.rhc-addon .rhc-addon-form__type input:focus-visible {
  outline: 3px solid var(--rhc-addon-accent);
  outline-offset: 3px;
}

.rhc-addon-thread__type {
  color: var(--rhc-addon-accent);
  font-size: 13px;
  font-weight: 600;
  margin: 0;
}

.rhc-addon textarea:focus {
  border-color: var(--riko-action);
  box-shadow: none;
  outline: 3px solid var(--riko-focus);
  outline-offset: 2px;
}

.rhc-addon-form__notice {
  color: var(--rhc-addon-muted);
  font-size: 13px;
  margin: 0.55rem 0 0;
}

.rhc-addon-form__hint {
  color: var(--rhc-addon-muted);
  font-size: 13px;
  margin: 0.4rem 0 0;
}

.rhc-addon-form__feedback {
  border-radius: 0.35rem;
  font-size: 14px;
  font-weight: 650;
  margin: 0.65rem 0 0;
  padding: 0.62rem 0.72rem;
}

.rhc-addon-form__feedback--loading {
  background: var(--riko-surface-soft);
  color: var(--riko-text);
}

/* palette-exception: semantic-state: Red identifies destructive actions, validation failures or blocked operations. */
.rhc-addon-form__feedback--error {
  background: var(--riko-danger-surface);
  color: var(--riko-danger);
}

/* palette-exception: semantic-state: Red identifies destructive actions, validation failures or blocked operations. */
.rhc-addon textarea[aria-invalid="true"] {
  border-color: var(--riko-danger);
  box-shadow: 0 0 0 3px rgba(169, 54, 54, 0.16);
}

/* palette-exception: semantic-state: State and destructive controls retain their distinct meaning and disabled contrast. */
.rhc-addon textarea[aria-invalid="true"]:focus {
  outline-color: var(--riko-danger);
}

.rhc-addon-form__actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.75rem;
}

.rhc-addon-button,
#tm-content .rhc-addon .rhc-addon-button {
  align-items: center;
  background: var(--rhc-addon-accent);
  border: 1px solid var(--rhc-addon-accent);
  border-radius: 6px;
  box-shadow: none;
  color: var(--riko-action-contrast) !important;
  cursor: pointer;
  display: inline-flex;
  font-size: 15px;
  font-weight: 650;
  justify-content: center;
  line-height: 1.2;
  min-height: 44px;
  padding: 0.68rem 1rem;
  text-decoration: none;
  white-space: normal;
  transform: none;
}

.rhc-addon-button:hover,
#tm-content .rhc-addon .rhc-addon-button:hover {
  background: var(--riko-action-hover);
  color: var(--riko-action-contrast) !important;
}

.rhc-addon-button:focus-visible,
#tm-content .rhc-addon .rhc-addon-button:focus-visible {
  outline: 3px solid var(--riko-focus);
  outline-offset: 3px;
}

.rhc-addon-button--secondary,
#tm-content .rhc-addon .rhc-addon-button--secondary {
  background: var(--riko-surface);
  box-shadow: none;
  color: var(--rhc-addon-accent) !important;
}

.rhc-addon-button--secondary:hover,
#tm-content .rhc-addon .rhc-addon-button--secondary:hover {
  background: var(--riko-action-soft-hover);
  color: var(--riko-action-hover) !important;
}

.rhc-addon button:disabled,
.rhc-addon textarea:disabled {
  cursor: wait;
  opacity: 0.64;
}

.rhc-addon-discussions {
  margin-top: 1.5rem;
}

.rhc-addon-discussions__heading {
  align-items: baseline;
  border-bottom: 1px solid var(--rhc-addon-line);
  display: flex;
  gap: 0.8rem 1.5rem;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0.7rem;
}

.rhc-addon-discussions__heading h3 {
  font-size: 18px !important;
  margin: 0;
}

.rhc-addon-discussions__heading p {
  color: var(--rhc-addon-muted);
  font-size: 14px;
  margin: 0;
}

.rhc-addon-discussions--empty {
  margin-top: 1rem;
}

.rhc-addon-empty {
  border-top: 1px solid var(--rhc-addon-line);
  padding-top: 1rem;
}

.rhc-addon-empty p {
  color: var(--rhc-addon-muted);
  font-size: 14px;
  margin: 0;
}

.rhc-addon-thread {
  border-bottom: 1px solid var(--rhc-addon-line);
  padding-block: 0.5rem 1rem;
  min-width: 0;
}

.rhc-addon-thread + .rhc-addon-thread {
  margin-top: 1.25rem;
}

.rhc-addon-thread__heading {
  align-items: flex-start;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  justify-content: space-between;
  padding: 0;
}

.rhc-addon-thread__meta {
  align-items: center;
  color: var(--rhc-addon-muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 13px;
  gap: 0.4rem 0.65rem;
  margin: 0;
}

.rhc-addon-thread__meta time::before {
  content: "·";
  margin-right: 0.65rem;
}

.rhc-addon-thread__flags {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.rhc-addon-badge {
  border-radius: 4px;
  display: inline-flex;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.25;
  padding: 0.26rem 0.55rem;
}

.rhc-addon-badge--answered {
  background: var(--riko-surface-soft);
  color: var(--riko-ink);
}

/* palette-exception: semantic-state: Amber identifies incomplete work or items that require attention. */
.rhc-addon-badge--pending {
  background: var(--riko-warning-surface);
  color: var(--riko-warning);
}

.rhc-addon-badge--private {
  background: var(--riko-surface-soft);
  color: var(--riko-text);
}

.rhc-addon-thread__stream {
  margin: 1rem 0 0 0.75rem;
  padding: 0 0 0 1rem;
  border-left: 2px solid var(--rhc-addon-line);
}

.rhc-addon-post {
  padding: 1rem 0;
}

.rhc-addon-post + .rhc-addon-post {
  border-top: 1px solid color-mix(in srgb, var(--riko-line-strong) 20%, transparent);
}

.rhc-addon-post--official {
  border-left: 3px solid var(--riko-brand);
  margin-left: calc(-1rem - 2px);
  padding-left: calc(1rem - 1px);
}

/* palette-exception: semantic-state: Amber identifies incomplete work or items that require attention. */
.rhc-addon-post--proposed {
  border-left: 3px solid var(--riko-warning);
  margin-left: calc(-1rem - 2px);
  padding-left: calc(1rem - 1px);
}

/* palette-exception: semantic-state: Green identifies confirmed availability or completed operations. */
.rhc-addon-post--creator {
  border-left: 3px solid var(--riko-success);
  margin-left: calc(-1rem - 2px);
  padding-left: calc(1rem - 1px);
}

/* palette-exception: semantic-state: Amber identifies incomplete work or items that require attention. */
.rhc-addon-post--creator-proposed {
  border-left: 3px solid var(--riko-warning);
  margin-left: calc(-1rem - 2px);
  padding-left: calc(1rem - 1px);
}

.rhc-addon-post__meta {
  align-items: center;
  color: var(--rhc-addon-muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 13px;
  gap: 0.45rem 0.7rem;
  margin-bottom: 0.55rem;
}

.rhc-addon-post__meta strong {
  color: var(--rhc-addon-ink);
}

.rhc-addon-origin {
  color: var(--riko-text);
  font-size: 12px;
  font-weight: 650;
}

/* palette-exception: semantic-state: Amber identifies incomplete work or items that require attention. */
.rhc-addon-post__notice {
  background: var(--riko-warning-surface);
  border-left: 3px solid var(--riko-warning);
  color: var(--riko-warning);
  font-size: 14px;
  line-height: 1.5;
  margin: 0 0 0.75rem;
  padding: 0.58rem 0.7rem;
}

.rhc-addon-thread__body,
.rhc-addon-post__content {
  font-size: 16px;
  font-weight: 400;
  line-height: 1.65;
  overflow-wrap: anywhere;
  white-space: pre-line;
}

.rhc-addon-thread__body {
  margin: 0.65rem 0 0;
}

.rhc-addon-post--official .rhc-addon-post__content,
.rhc-addon-post--proposed .rhc-addon-post__content {
  white-space: normal;
}

.rhc-addon-post__content > :first-child {
  margin-top: 0;
}

.rhc-addon-post__content > :last-child {
  margin-bottom: 0;
}

.rhc-addon-comment-panel {
  margin-top: 0.5rem;
}

.rhc-addon-comment-panel__toggle {
  align-items: center;
  color: var(--rhc-addon-accent);
  cursor: pointer;
  display: inline-flex;
  font-size: 14px;
  font-weight: 650;
  min-height: 44px;
  padding: 0.5rem 0;
  width: max-content;
  max-width: 100%;
}

.rhc-addon-comment {
  padding: 0.5rem 0 0;
}

.rhc-addon-comment textarea {
  min-height: 5rem;
}

.rhc-addon-discussions__actions {
  display: flex;
  justify-content: center;
  margin-top: 1rem;
}

.rhc-addon-more {
  min-width: min(100%, 16rem);
}

.rhc-addon-retry {
  margin: 0.25rem 0;
}

/* palette-exception: semantic-state: Green identifies confirmed availability or completed operations. */
.rhc-addon-thread__feedback {
  background: var(--riko-success-surface);
  border-bottom: 1px solid color-mix(in srgb, var(--riko-brand) 20%, transparent);
  color: var(--riko-ink);
  font-size: 14px;
  font-weight: 650;
  margin: 0;
  padding: 0.72rem 1rem;
}

.rhc-addon-thread__feedback:focus,
.rhc-addon-thread:focus {
  outline: 3px solid var(--riko-focus);
  outline-offset: -3px;
}

/* Member-owned messages use the same compact edit/delete treatment as My discussions. */
.rhc-addon-post-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.25rem 0.75rem;
  margin-top: 0.65rem;
  min-width: 0;
}

.rhc-addon-post-action { min-width: 0; }
.rhc-addon-post-action[open] { flex-basis: 100%; }
.rhc-addon-post-action > summary {
  display: flex;
  align-items: center;
  min-height: 44px;
  width: fit-content;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--riko-action-line);
  border-radius: 6px;
  color: var(--riko-link);
  background: var(--riko-action-soft);
  cursor: pointer;
  font-size: 14px;
  font-weight: 650;
  list-style: none;
}
.rhc-addon-post-action > summary::-webkit-details-marker { display: none; }
.rhc-addon-post-action > summary:hover,
.rhc-addon-post-action[open] > summary { border-color: var(--riko-action-hover); background: var(--riko-action-soft-hover); }
.rhc-addon-post-action > summary:focus-visible { outline: 3px solid var(--riko-focus); outline-offset: 3px; }
/* palette-exception: semantic-state: State and destructive controls retain their distinct meaning and disabled contrast. */
.rhc-addon-post-action--delete > summary { border-color: transparent; color: var(--riko-danger); background: transparent; }

.rhc-addon-member-form {
  padding: 1rem;
  margin-top: 0.75rem;
  border: 1px solid var(--riko-line);
  border-radius: 8px;
  background: var(--riko-surface-soft);
  min-width: 0;
}
.rhc-addon-member-form > p:first-child { margin-top: 0; }
.rhc-addon-member-form label { display: block; margin-bottom: 0.4rem; font-weight: 650; }
.rhc-addon-member-form textarea { display: block; max-width: 100%; }
.rhc-addon-member-form .rhc-addon-form__hint time { margin-inline-start: 0.35em; }
.rhc-addon-member-form .rhc-addon-form__actions { display: flex; flex-wrap: wrap; justify-content: flex-start; gap: 0.6rem; }
.rhc-addon-member-form .rhc-addon-button { width: auto; }
/* palette-exception: semantic-state: State and destructive controls retain their distinct meaning and disabled contrast. */
.rhc-addon-button--danger,
#tm-content .rhc-addon .rhc-addon-button--danger { background: #8a3935; border-color: var(--riko-danger); color: var(--riko-inverse) !important; }
/* palette-exception: semantic-state: State and destructive controls retain their distinct meaning and disabled contrast. */
.rhc-addon-button--danger:hover,
#tm-content .rhc-addon .rhc-addon-button--danger:hover { background: #6d2825; border-color: var(--riko-danger); }

@media (max-width: 42rem) {
  .rhc-addon-login,
  .rhc-addon-discussions__heading,
  .rhc-addon-thread__heading {
    align-items: stretch;
    flex-direction: column;
  }

  .rhc-addon-login .rhc-addon-button,
  .rhc-addon-form__actions .rhc-addon-button,
  .rhc-addon-comment .rhc-addon-button,
  .rhc-addon-ask__disclosure > summary,
  .rhc-addon-comment-panel > summary {
    width: 100%;
  }

  .rhc-addon-login p {
    flex: auto;
  }

  .rhc-addon-ask__disclosure .rhc-addon-form {
    padding: 0.875rem;
  }

  .rhc-addon-thread__stream {
    margin-left: 0;
  }

  .rhc-addon-form__actions {
    display: block;
  }

  .rhc-addon-member-form { padding: 0.75rem; }
  .rhc-addon-member-form .rhc-addon-form__actions .rhc-addon-button { width: auto; max-width: 100%; }
}

@media (forced-colors: active) {
  .rhc-addon-button,
  #tm-content .rhc-addon .rhc-addon-button {
    border-color: ButtonText;
    color: ButtonText !important;
    background: ButtonFace;
  }
}

@media (prefers-reduced-motion: reduce) {
  .rhc-addon,
  .rhc-addon * {
    scroll-behavior: auto !important;
  }
}