@media (max-width: 640px) {
  header {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
    gap: 10px 8px;
    padding: 14px 16px 6px;
  }

  .brand {
    min-width: 0;
    width: 100%;
    align-items: center;
    gap: 9px;
  }

  .brand > span:nth-child(2) {
    min-width: 0;
    display: block;
  }

  .brand b {
    display: block;
    font-size: 16px;
    line-height: 1.12;
    overflow-wrap: anywhere;
  }

  .brand small {
    display: none;
  }

  html[lang="ta"] .brand b {
    font-size: 14px;
    line-height: 1.25;
    max-width: 190px;
  }

  .header-tools {
    justify-self: end;
    align-self: start;
    flex-wrap: nowrap;
    gap: 5px;
  }

  .language-tabs {
    flex: 0 0 auto;
  }

  .language-tabs button {
    white-space: nowrap;
  }

  .mark {
    width: 38px;
    height: 38px;
  }

  .hero {
    padding-top: 28px;
  }

  .hero h1 {
    font-size: clamp(40px, 12vw, 54px);
    line-height: 1.02;
  }

  .lead {
    font-size: 16px;
    line-height: 1.5;
    margin-bottom: 22px;
  }

  html[lang="ta"] .hero h1 {
    font-size: clamp(31px, 9vw, 38px) !important;
    line-height: 1.18 !important;
    letter-spacing: -0.025em;
  }

  html[lang="ta"] .lead {
    font-size: 15px;
    line-height: 1.62;
  }

  .composer {
    margin-bottom: 18px;
  }

  .composer textarea {
    min-height: 100px;
  }

  nav {
    width: calc(100% - 24px);
    min-height: 58px;
    bottom: max(8px, env(safe-area-inset-bottom));
  }

  #app {
    padding-bottom: 126px;
  }

  main {
    padding-bottom: 96px;
  }

  .site-footer {
    margin-bottom: 118px;
  }
}

@media (max-width: 390px) {
  header {
    grid-template-columns: 1fr;
  }

  .header-tools {
    justify-self: stretch;
    justify-content: space-between;
  }

  html[lang="ta"] .brand b {
    max-width: none;
  }
}