body[data-storage="server"]:not([data-authenticated="true"]) > .app-shell,
body[data-storage="server"]:not([data-authenticated="true"]) > .skip-link,
body[data-storage="server"]:not([data-authenticated="true"]) > .online-notice { display: none; }
.teacher-login { min-height: calc(100dvh - 34px); display: grid; place-items: center; padding: 24px; }
.login-paper { width: min(100%, 720px); background: var(--paper); background-image: var(--paper-surface); background-size: 720px; padding: 30px 42px 20px; box-shadow: 0 0 0 1px #77736a30, 0 18px 50px #554f4426; }
.login-masthead { border-bottom: 4px double var(--ink); display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 0 0 22px; }
.login-masthead span { font-size: 11px; letter-spacing: .2em; color: var(--muted); }
.login-masthead strong { font: 900 clamp(42px, 7vw, 64px)/1.1 var(--serif); letter-spacing: .15em; text-indent: .15em; }
.login-content { max-width: 350px; margin: 34px auto 0; }
.login-edition { color: var(--accent); font-size: 11px; letter-spacing: .18em; }
.login-content h1 { font: 700 32px/1.4 var(--serif); margin: 10px 0; }
.login-content > p { color: var(--muted); font-size: 13px; line-height: 1.9; }
.login-content form { margin-top: 25px; }
.login-content .field-label { font-size: 12px; margin-bottom: 18px; }
.login-content input { width: 100%; background: #ffffff66; }
.login-content .primary-button { width: 100%; display: flex; align-items: center; justify-content: space-between; min-height: 48px; }
.login-content .login-footnote { text-align: center; font-size: 10px; margin: 28px 0 8px; padding-top: 16px; border-top: 1px solid var(--line); }
.login-content .form-error { color: var(--accent); min-height: 20px; }
.online-notice { position: fixed; z-index: 20; top: 70px; left: 50%; transform: translateX(-50%); width: max-content; max-width: calc(100% - 36px); display: flex; gap: 16px; align-items: center; padding: 12px 18px; border: 1px solid var(--accent); background: var(--paper); box-shadow: 0 5px 25px #302d2529; font-size: 13px; }
.online-notice button { flex-shrink: 0; min-height: 38px; color: var(--accent); }
.online-backup-info { padding: 16px; margin: 20px 0; border-block: 1px solid var(--line); background: #ffffff55; }
.online-backup-info > span, .online-backup-info > strong { display: block; }
.online-backup-info > span { font-size: 11px; color: var(--muted); }
.online-backup-info > strong { font-size: 16px; margin: 5px 0 9px; }
.online-backup-info > p { margin: 0; font-size: 12px; color: var(--muted); }
.online-account-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
#online-account-button { display: block; border: 1px solid var(--line); padding-inline: 16px; font-size: 13px; }
@media (max-width: 700px) {
  .teacher-login { padding: 10px; }
  .login-paper { padding: 26px 24px 15px; }
  .login-content { margin-top: 26px; }
  .online-notice { top: 100px; padding: 10px; gap: 8px; font-size: 12px; }
}

/* School maintenance stays out of the projection stage. */
#school-name { display: block; max-width: 28ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.school-dialog-school { font: 700 21px/1.4 var(--serif); margin: 0 0 8px; }
.school-class-list, .school-teacher-list { margin: 18px 0; }
.school-class-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.school-class-row:first-child { border-top: 1px solid var(--line); }
.school-class-row > div:first-child { min-width: 0; }
.school-class-row strong { font: 700 18px/1.5 var(--serif); overflow-wrap: anywhere; }
.school-class-row p { margin: 5px 0 0; color: var(--muted); font-size: 12px; line-height: 1.7; }
.school-class-row > button { flex-shrink: 0; }
.school-inline-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.school-class-row .school-inline-actions { justify-content: flex-end; max-width: 60%; }
.school-class-row button { font-size: 12px; }
.school-admin-dialog { width: min(1020px, calc(100% - 40px)); }
.school-admin-dialog h3 { font: 700 21px/1.4 var(--serif); margin: 0 0 14px; }
.school-admin-dialog .field-label { margin: 12px 0; }
.school-admin-dialog input:not([type="checkbox"]), .school-admin-dialog select, .school-admin-dialog textarea { width: 100%; }
.school-admin-toolbar { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin: 18px 0 24px; padding-bottom: 20px; border-bottom: 3px double var(--ink); }
.school-admin-toolbar .field-label { margin: 0; width: min(420px, 75%); }
.school-admin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.school-admin-section { padding: 20px 0; border-bottom: 1px solid var(--line); }
.school-admin-grid .school-admin-section { padding-top: 0; }
.school-admin-grid .school-admin-section + .school-admin-section { padding-left: 28px; border-left: 1px solid var(--line); }
.school-details { margin-top: 24px; }
.school-details summary { cursor: pointer; font-size: 13px; color: var(--accent); padding-block: 8px; }
.school-section-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.school-section-heading > div:first-child { flex: 1; }
.school-section-heading h3 { margin-bottom: 6px; }
.school-editor { margin: 20px 0; padding: 22px; border: 1px solid var(--accent); background: #ffffff66; }
.school-editor textarea { resize: vertical; min-height: 150px; }
.school-admin-status:not(:empty) { border-left: 3px solid #4a6545; padding: 10px 14px; font-size: 13px; line-height: 1.7; background: #eef1df66; }
.school-admin-dialog .form-error { white-space: pre-wrap; }
#admin-confirm-copy { line-height: 1.8; }
@media (max-width: 700px) {
  .school-admin-dialog { width: calc(100% - 24px); }
  .school-admin-grid { grid-template-columns: 1fr; gap: 18px; }
  .school-admin-grid .school-admin-section + .school-admin-section { padding-left: 0; border-left: 0; }
  .school-class-row, .school-section-heading { align-items: flex-start; flex-direction: column; gap: 12px; }
  .school-class-row .school-inline-actions { max-width: 100%; justify-content: flex-start; }
  .school-editor { padding: 16px; }
  .school-admin-toolbar { gap: 10px; }
}