/* Keep the first mobile screen focused on the featured class. */
@media (max-width: 760px) {
  .announcement {
    min-height: 28px;
    padding: 4px 12px;
    flex-direction: row;
    gap: 0;
    font-size: 11px;
    line-height: 20px;
    letter-spacing: 0;
  }

  .announcement > .announcement-separator,
  .announcement > .announcement-item:last-child {
    display: none;
  }

  .announcement .announcement-item {
    gap: 6px;
    white-space: nowrap;
  }

  .announcement .icon {
    width: 13px;
    height: 13px;
  }

  .header {
    height: auto;
  }

  body .header .header-inner {
    width: calc(100% - 24px);
    display: grid;
    grid-template-columns: minmax(0, 1fr) max-content 36px;
    grid-template-rows: 56px;
    gap: 0 6px;
    padding-block: 0;
  }

  .header .academy-brand {
    min-width: 0;
    gap: 6px;
    grid-column: 1;
    grid-row: 1;
  }

  .header .academy-symbol {
    width: 32px;
    height: 32px;
  }

  .header .academy-lockup {
    gap: 1px;
  }

  .header .academy-signature {
    gap: 4px;
  }

  .header .signature-art {
    font-size: 30px;
    letter-spacing: -.8px;
  }

  .header .signature-academy {
    font-size: 24px;
    letter-spacing: -.5px;
  }

  .header .signature-tagline {
    font-size: 6px;
    line-height: 1.5;
    letter-spacing: .8px;
  }

  .header .menu-toggle {
    width: 36px;
    height: 40px;
    padding: 8px;
    border: 0;
    background: transparent;
    grid-column: 3;
    grid-row: 1;
  }

  .header .header-account {
    grid-column: 2;
    grid-row: 1;
    min-width: 0;
    width: auto;
    padding: 0;
    border: 0;
  }

  .header-account :is([data-account-guest], [data-account-member]) {
    justify-content: flex-end;
    gap: 5px;
    min-height: 44px;
  }

  .header-account .header-login {
    min-height: 44px;
    padding: 8px 4px;
    font-size: 12px;
    line-height: 20px;
  }

  .header-account :is(.header-register, .header-classroom) {
    min-height: 44px;
    padding: 7px 11px;
    font-size: 12px;
    line-height: 20px;
    gap: 0;
  }

  .header-account :is(.header-register, .header-classroom) > span {
    display: none;
  }

  .header-account .header-logout {
    min-height: 44px;
    padding: 8px 4px;
    font-size: 11px;
    line-height: 20px;
  }

  .header .mobile-nav {
    top: 100%;
    z-index: 40;
    max-height: calc(100vh - 90px);
    max-height: calc(100svh - 90px);
    overflow-y: auto;
    padding: 12px 16px 16px;
    gap: 2px;
    box-shadow: 0 12px 24px #173d3e12;
  }

  .header .mobile-nav[hidden] {
    display: none;
  }

  .header .mobile-nav > a {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding-inline: 10px;
  }
}

/* Keep both account actions beside the complete lockup on smaller phones. */
@media (max-width: 420px) {
  body .header .header-inner {
    grid-template-columns: minmax(0, 1fr) max-content 32px;
    column-gap: 4px;
  }

  .header .academy-brand { gap: 5px; }
  .header .academy-symbol { width: 28px; height: 28px; }
  .header .academy-signature { gap: 3px; }
  .header .signature-art { font-size: 26px; letter-spacing: -.6px; }
  .header .signature-academy { font-size: 21px; letter-spacing: -.4px; }
  .header .signature-tagline { font-size: 5.6px; letter-spacing: .6px; }
  .header .menu-toggle { width: 32px; padding-inline: 7px; }

  .header-account :is([data-account-guest], [data-account-member]) { gap: 4px; }
  .header-account .header-login { padding-inline: 3px; font-size: 11.5px; }
  .header-account :is(.header-register, .header-classroom) { padding-inline: 9px; font-size: 11.5px; }
  .header-account .header-logout { padding-inline: 3px; font-size: 10.5px; }
}

@media (max-width: 359px) {
  body .header .header-inner {
    width: calc(100% - 16px);
    grid-template-columns: minmax(0, 1fr) max-content 30px;
  }

  .header .academy-brand { gap: 4px; }
  .header .academy-symbol { width: 24px; height: 24px; }
  .header .signature-art { font-size: 23px; }
  .header .signature-academy { font-size: 18.5px; }
  .header .signature-tagline { font-size: 5.2px; letter-spacing: .5px; }
  .header .menu-toggle { width: 30px; padding-inline: 6px; }

  .header-account .header-login { padding-inline: 2px; font-size: 10.5px; }
  .header-account :is(.header-register, .header-classroom) { padding-inline: 8px; font-size: 10.5px; }
  .header-account .header-logout { padding-inline: 2px; font-size: 10px; }
}