.nickname-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.35em;
  height: 1.35em;
  margin-right: 4px;
  vertical-align: -0.18em;
  flex: 0 0 auto;
  overflow: hidden;
}

.nickname-icon--emoji {
  font-size: 1.08em;
  line-height: 1;
}

.nickname-icon--image {
  border-radius: 999px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border-light);
}

.nickname-icon--image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.nickname-icon--preview {
  width: 42px;
  height: 42px;
  margin-right: 0;
  font-size: 30px;
}

.nickname-icon--empty {
  width: auto;
  min-width: 42px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  font-size: 11px;
  font-weight: 800;
}

.avatar--nickname-icon,
.sidebar__user-avatar.avatar--nickname-icon {
  font-size: 0 !important;
  padding: 0 !important;
  overflow: hidden;
  display: flex !important;
  align-items: center;
  justify-content: center;
}

.avatar--nickname-icon .nickname-avatar-emoji,
.sidebar__user-avatar.avatar--nickname-icon .nickname-avatar-emoji {
  font-size: 34px;
  line-height: 1;
}

.sidebar__user-avatar.avatar--nickname-icon .nickname-avatar-emoji {
  font-size: 20px;
}

.avatar--nickname-icon .nickname-avatar-img,
.sidebar__user-avatar.avatar--nickname-icon .nickname-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 50%;
}

.site-header__avatar.site-header__avatar--icon {
  padding: 0 !important;
  overflow: hidden;
  font-size: 0 !important;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
}

.site-header__avatar-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

.site-header__avatar-emoji {
  font-size: 22px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.nickname-icon-preview-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  background: var(--color-surface-2);
  margin-bottom: 12px;
}

.nickname-icon-preview {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nickname-icon-emoji-grid {
  display: grid;
  grid-template-columns: repeat(11, minmax(0, 1fr));
  gap: 6px;
  margin: 12px 0;
}

.nickname-icon-choice {
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--color-border-light);
  background: var(--color-surface);
  font-size: 20px;
  cursor: pointer;
  transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.nickname-icon-choice:hover,
.nickname-icon-choice.active {
  transform: translateY(-1px);
  border-color: var(--color-primary);
  background: var(--color-primary-bg);
}

.nickname-icon-choice.active {
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--color-primary) 24%, transparent);
}

.nickname-icon-custom-row,
.nickname-icon-upload-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 8px;
  flex-wrap: wrap;
}

.nickname-icon-custom-row .form-input {
  flex: 1;
  min-width: 120px;
}

.account-nickname,
.sidebar__user-name {
  display: inline-flex;
  align-items: center;
  gap: 0;
}

.account-nickname > .nickname-icon,
.sidebar__user-name > .nickname-icon {
  display: none !important;
}

@media (max-width: 520px) {
  .nickname-icon-emoji-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .nickname-icon-custom-row,
  .nickname-icon-upload-row {
    flex-direction: column;
    align-items: stretch;
  }

  .site-header__avatar-emoji {
    font-size: 21px;
  }
}