.language-toggle-button {
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  border: 1px solid rgba(66, 154, 206, .18);
  border-radius: 15px;
  background: rgba(255, 255, 255, .62);
  color: #187eb8;
  display: grid;
  place-items: center;
  font: 900 9px/1 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: .02em;
  box-shadow: inset 0 1px rgba(255, 255, 255, .85), 0 9px 24px rgba(33, 119, 166, .08);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  backdrop-filter: blur(18px) saturate(150%);
  transition: transform .16s ease, background .2s ease, color .2s ease;
}

.language-toggle-button:active { transform: scale(.94); }

html[data-theme="dark"] .language-toggle-button {
  border-color: rgba(133, 207, 239, .14);
  background: rgba(27, 45, 56, .78);
  color: #81d5ff;
  box-shadow: inset 0 1px rgba(255, 255, 255, .05), 0 12px 28px rgba(0, 0, 0, .2);
}

html[data-language="en"] .language-toggle-button span { font-family: "PingFang SC", "Hiragino Sans GB", sans-serif; }
html[data-language="en"] body {
  word-break: normal;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  font-feature-settings: "kern" 1, "liga" 1;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

html[data-language="en"] button,
html[data-language="en"] input,
html[data-language="en"] textarea,
html[data-language="en"] select { font-family: inherit; }

html[data-language="en"] .bottom-nav b { font-size: 8.5px; font-weight: 760; letter-spacing: -.012em; }
html[data-language="en"] .header-actions { gap: 7px; }

/* English needs its own rhythm: longer words, lighter emphasis and more room. */
html[data-language="en"] .page-intro h1,
html[data-language="en"] .my-page-head h1,
html[data-language="en"] .chat-topbar h1,
html[data-language="en"] .social-topbar h1 {
  font-weight: 780;
  letter-spacing: -.045em;
}

html[data-language="en"] .page-intro small,
html[data-language="en"] .my-page-head small,
html[data-language="en"] .chat-topbar small,
html[data-language="en"] .social-topbar small {
  font-size: 8px;
  letter-spacing: .17em;
}

html[data-language="en"] .chat-gate h2,
html[data-language="en"] .empty-wallet h2 {
  max-width: 340px;
  margin-left: auto;
  margin-right: auto;
  font-weight: 780;
  line-height: 1.14;
  letter-spacing: -.042em;
  text-wrap: balance;
}

html[data-language="en"] .chat-gate p,
html[data-language="en"] .empty-wallet > p {
  max-width: 350px;
  margin-left: auto;
  margin-right: auto;
  font-size: 12px;
  line-height: 1.65;
  text-wrap: pretty;
}

html[data-language="en"] .primary-button,
html[data-language="en"] .secondary-button {
  font-size: 12.5px;
  font-weight: 760;
  letter-spacing: -.012em;
}

html[data-language="en"] .contact-quick-actions button { padding: 12px; }
html[data-language="en"] .contact-quick-actions b { font-size: 11px; font-weight: 760; }
html[data-language="en"] .contact-quick-actions small { font-size: 8.5px; line-height: 1.35; }
html[data-language="en"] .search-field input { font-size: 12px; }

html[data-language="en"] .social-identity-strip b { font-size: 10.5px; font-weight: 760; }
html[data-language="en"] .social-identity-strip small { font-size: 8.5px; }
html[data-language="en"] .social-post-head strong { font-size: 11.5px; font-weight: 760; }
html[data-language="en"] .social-post-head small,
html[data-language="en"] .social-post-head time { font-size: 8.5px; }
html[data-language="en"] .social-post-content { font-size: 11.5px; line-height: 1.64; }

html[data-language="en"] .security-facts {
  grid-template-columns: 1fr;
  gap: 8px;
}

html[data-language="en"] .security-facts > div {
  min-height: 58px;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
}

html[data-language="en"] .security-facts span {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: rgba(64, 174, 231, .09);
}

html[data-language="en"] .security-facts p { margin: 0; gap: 2px; }
html[data-language="en"] .security-facts b { font-size: 11px; font-weight: 760; }
html[data-language="en"] .security-facts small { font-size: 8.5px; line-height: 1.45; }
html[data-language="en"] .security-trust-head h2 { font-size: 17px; font-weight: 780; }
html[data-language="en"] .security-trust-actions b { font-size: 10.5px; font-weight: 760; }
html[data-language="en"] .security-trust-actions small { font-size: 8.5px; line-height: 1.4; }
html[data-language="en"] .settings-list b { font-size: 11.5px; font-weight: 760; }
html[data-language="en"] .settings-list small { font-size: 8.5px; line-height: 1.4; }

/* Bilingual meeting invitation: intentionally dark in both app themes so the
   share card keeps one recognizable visual identity in screenshots. */
.meeting-invite-preview {
  max-width: 760px;
  margin: 0 auto 18px;
  padding: 24px !important;
  border: 1px solid rgba(130, 222, 255, .22) !important;
  border-radius: 28px !important;
  background:
    radial-gradient(circle at 92% 5%, rgba(71, 191, 239, .26), transparent 31%),
    radial-gradient(circle at 9% 93%, rgba(35, 121, 181, .18), transparent 34%),
    linear-gradient(145deg, rgba(8, 28, 46, .98), rgba(8, 51, 82, .96)) !important;
  color: #f6fbff !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .12), 0 22px 55px rgba(5, 31, 52, .26) !important;
  -webkit-backdrop-filter: blur(26px) saturate(150%) !important;
  backdrop-filter: blur(26px) saturate(150%) !important;
}

.meeting-invite-preview::after {
  border-color: rgba(117, 223, 255, .14) !important;
  box-shadow: 0 0 0 28px rgba(117, 223, 255, .025) !important;
}

.meeting-invite-brand { gap: 12px; }
.meeting-invite-brand img { width: 48px; height: 48px; border-radius: 15px; }
.meeting-invite-brand small { color: #7adfff; font-size: 9px; letter-spacing: .16em; }
.meeting-invite-brand b {
  max-width: 560px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: #fff;
  font-size: 16px;
  letter-spacing: -.02em;
}

.meeting-invite-languages {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 20px 0 14px;
}

.meeting-invite-language {
  min-height: 126px;
  padding: 16px 17px;
  border: 1px solid rgba(255, 255, 255, .09);
  border-radius: 19px;
  background: rgba(255, 255, 255, .055);
  box-shadow: inset 0 1px rgba(255, 255, 255, .045);
}

.meeting-invite-language small {
  display: block;
  margin-bottom: 8px;
  color: #72dbff;
  font-size: 9px;
  font-weight: 900;
  letter-spacing: .16em;
}

.meeting-invite-language h4 {
  margin: 0 !important;
  color: #fff !important;
  font-size: 17px;
  line-height: 1.3;
  letter-spacing: -.02em;
}

.meeting-invite-language p {
  margin: 8px 0 0;
  color: #bed1df;
  font-size: 12px;
  line-height: 1.65;
}

.meeting-invite-language.zh { background: rgba(255, 255, 255, .032); }
.meeting-invite-language.zh small { color: #9ebaca; }

.meeting-invite-preview .meeting-invite-id {
  min-height: 54px;
  padding: 12px 14px;
  border-color: rgba(126, 219, 255, .14);
  background: rgba(255, 255, 255, .055);
}

.meeting-invite-preview .meeting-invite-id small { color: #7fddff; font-size: 10px; font-weight: 850; }
.meeting-invite-preview .meeting-invite-id b {
  max-width: none;
  color: #fff;
  font: 850 14px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .02em;
}

.meeting-invite-preview .meeting-invite-direct {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 12px;
  padding: 14px 15px;
  border: 1px solid rgba(90, 214, 255, .19);
  border-radius: 17px;
  background: linear-gradient(135deg, rgba(70, 193, 236, .18), rgba(255, 255, 255, .045));
  color: #d8f6ff !important;
  text-decoration: none !important;
  transition: transform .16s ease, border-color .18s ease, background .18s ease;
}

.meeting-invite-preview .meeting-invite-direct:active { transform: scale(.985); }
.meeting-invite-direct span { min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.meeting-invite-direct small { color: #77dcff; font-size: 9px; font-weight: 900; letter-spacing: .1em; }
.meeting-invite-direct b { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 11px; }
.meeting-invite-direct em { flex: 0 0 auto; color: #fff; font-size: 11px; font-style: normal; font-weight: 900; }
.meeting-invite-preview footer { color: #aec6d5; font-size: 11px; line-height: 1.65; }

@media (max-width: 640px) {
  .meeting-invite-preview { padding: 19px !important; border-radius: 24px !important; }
  .meeting-invite-languages { grid-template-columns: 1fr; margin-top: 17px; }
  .meeting-invite-language { min-height: 0; padding: 14px; }
  .meeting-invite-language h4 { font-size: 15px; }
  .meeting-invite-language p { font-size: 11px; }
  .meeting-invite-preview .meeting-invite-id { align-items: flex-start; flex-direction: column; gap: 5px; }
  .meeting-invite-preview .meeting-invite-id b { font-size: 12px; }
}

@media (max-width: 420px) {
  .language-toggle-button { width: 40px; height: 40px; flex-basis: 40px; border-radius: 14px; }
  .network-pill { max-width: 116px; }
  html[data-language="en"] .brand small { letter-spacing: .12em; }
  .meeting-invite-preview { padding: 16px !important; }
  .meeting-invite-brand img { width: 42px; height: 42px; }
  .meeting-invite-brand b { font-size: 14px; }
  .meeting-invite-direct em { display: none; }
}