.development-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 6%, rgba(181, 32, 45, 0.05), transparent 29rem),
    radial-gradient(circle at 88% 18%, rgba(14, 109, 93, 0.08), transparent 30rem),
    #f5efe4;
}

.development-main {
  width: min(1540px, calc(100% - 40px));
  margin: 0 auto;
  padding: 126px 0 64px;
}

.development-workspace[hidden] {
  display: none;
}

.development-workspace [hidden] { display: none !important; }

.development-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 28px;
}

.development-heading h1 {
  margin: 7px 0 9px;
  color: var(--ink);
  font-family: var(--font-display-zh);
  font-size: clamp(42px, 6vw, 68px);
  font-weight: 400;
  line-height: 1;
}

.development-heading p:not(.section-kicker) {
  max-width: 700px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.75;
}

.development-summary {
  display: grid;
  grid-template-columns: repeat(5, minmax(108px, 1fr));
  overflow: hidden;
  border: 1px solid rgba(14, 109, 93, 0.18);
  border-radius: 14px;
  background: rgba(255, 252, 246, 0.76);
}

.development-summary span {
  min-width: 0;
  padding: 14px 12px;
  color: var(--ink-soft);
  font-size: 13px;
  text-align: center;
}

.development-summary span + span {
  border-left: 1px solid rgba(14, 109, 93, 0.14);
}

.development-summary strong {
  display: block;
  margin-bottom: 3px;
  color: var(--green);
  font-family: var(--font-latin-display);
  font-size: 25px;
  font-weight: 500;
}

.development-panel {
  margin-top: 16px;
  border: 1px solid rgba(43, 33, 28, 0.13);
  border-radius: 16px;
  background: rgba(255, 252, 246, 0.92);
  box-shadow: 0 12px 36px rgba(37, 24, 20, 0.06);
}

.date-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 24px;
}

.panel-label {
  margin: 0;
  color: var(--red-deep);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.date-panel h2 {
  margin: 4px 0 0;
  color: var(--ink);
  font-size: 23px;
  font-weight: 500;
}

.date-controls {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}

.compact-button,
.date-input-label input,
.running-table input,
.running-table textarea,
.teacher-grid input {
  border: 1px solid rgba(43, 33, 28, 0.19);
  border-radius: 9px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.78);
  font: inherit;
}

.compact-button {
  min-height: 43px;
  padding: 9px 13px;
  cursor: pointer;
}

.compact-button:hover,
.compact-button:focus-visible {
  color: var(--green);
  border-color: rgba(14, 109, 93, 0.48);
  outline: none;
}

.date-input-label {
  display: grid;
  gap: 5px;
  color: var(--ink-soft);
  font-size: 12px;
}

.date-input-label input {
  min-height: 43px;
  padding: 7px 11px;
  font-size: 16px;
}

.teacher-settings {
  overflow: hidden;
}

.teacher-settings summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  list-style: none;
}

.teacher-settings summary::-webkit-details-marker {
  display: none;
}

.teacher-settings summary::after {
  content: "＋";
  color: var(--green);
  font-size: 24px;
  line-height: 1;
}

.teacher-settings[open] summary::after {
  content: "－";
}

.teacher-settings summary span:first-child {
  display: grid;
  gap: 3px;
}

.teacher-settings summary small {
  color: var(--red-deep);
  font-size: 12px;
}

.teacher-settings summary strong {
  font-size: 19px;
  font-weight: 500;
}

.summary-hint {
  margin-left: auto;
  color: var(--ink-soft);
  font-size: 13px;
}

.teacher-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding: 0 24px 20px;
}

.teacher-field {
  display: grid;
  gap: 7px;
  color: var(--ink-soft);
  font-size: 13px;
}

.teacher-field input {
  width: 100%;
  min-height: 43px;
  padding: 8px 11px;
  font-size: 16px;
}

.settings-actions {
  display: flex;
  justify-content: flex-end;
  padding: 0 24px 24px;
}

.running-table-panel {
  overflow: hidden;
}

.table-toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px 16px;
}

.table-note {
  margin: 5px 0 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.6;
}

.save-state {
  flex: 0 0 auto;
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--ink-soft);
  background: rgba(43, 33, 28, 0.06);
  font-size: 12px;
}

.save-state.is-dirty {
  color: var(--red-deep);
  background: rgba(181, 32, 45, 0.09);
}

.save-state.is-saved {
  color: var(--green);
  background: rgba(14, 109, 93, 0.09);
}

.running-table-wrap {
  overflow-x: auto;
  overscroll-behavior-x: contain;
  border-top: 1px solid rgba(43, 33, 28, 0.1);
}

.running-table {
  width: 100%;
  min-width: 1150px;
  border-collapse: collapse;
  table-layout: fixed;
}

.running-table th,
.running-table td {
  border-right: 1px solid rgba(43, 33, 28, 0.08);
  border-bottom: 1px solid rgba(43, 33, 28, 0.09);
  vertical-align: middle;
}

.running-table th:last-child,
.running-table td:last-child {
  border-right: 0;
}

.running-table th {
  padding: 12px 8px;
  color: rgba(255, 255, 255, 0.96);
  background: #246759;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.45;
  text-align: center;
}

.running-table td {
  padding: 9px;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.38);
  font-size: 14px;
  text-align: center;
}

.running-table tbody tr:nth-child(even) td {
  background: rgba(234, 241, 236, 0.42);
}

.running-table th:nth-child(1),
.running-table td:nth-child(1) { width: 160px; }
.running-table th:nth-child(2),
.running-table td:nth-child(2) { width: 112px; }
.running-table .attendance-cell { width: 100px; }
.running-table .leave-reason-cell { width: 230px; }
.running-table .accompanied-cell { width: 188px; }

.class-cell {
  color: var(--ink);
  font-weight: 600;
}

.teacher-cell.is-empty {
  color: rgba(74, 62, 57, 0.58);
}

.running-table input,
.running-table textarea {
  width: 100%;
  padding: 8px 9px;
  font-size: 15px;
}

.running-table input[type="number"] {
  min-height: 40px;
  text-align: center;
}

.running-table textarea {
  min-height: 46px;
  max-height: 118px;
  resize: vertical;
  line-height: 1.45;
}

.running-table input:focus,
.running-table textarea:focus,
.teacher-grid input:focus,
.date-input-label input:focus {
  border-color: var(--green);
  outline: 3px solid rgba(14, 109, 93, 0.12);
}

.deduction-total {
  color: var(--red-deep);
  font-family: var(--font-latin-display);
  font-size: 24px;
  font-weight: 600;
}

.accompanied-control {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 7px;
}

.accompanied-button {
  min-height: 40px;
  border: 1px solid rgba(43, 33, 28, 0.17);
  border-radius: 9px;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.72);
  cursor: pointer;
  font-size: 17px;
}

.accompanied-button[data-value="true"].is-selected {
  color: #fff;
  border-color: var(--green);
  background: var(--green);
}

.accompanied-button[data-value="false"].is-selected {
  color: #fff;
  border-color: var(--red-deep);
  background: var(--red-deep);
}

.development-actions {
  position: sticky;
  z-index: 12;
  bottom: 14px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 18px;
  padding: 13px;
  border: 1px solid rgba(43, 33, 28, 0.14);
  border-radius: 14px;
  background: rgba(255, 252, 246, 0.92);
  box-shadow: 0 18px 52px rgba(37, 24, 20, 0.12);
  backdrop-filter: blur(12px);
}

.development-actions .button {
  cursor: pointer;
}

.development-actions .button:disabled,
.settings-actions .button:disabled {
  cursor: wait;
  opacity: 0.58;
  transform: none;
}

.export-button {
  color: var(--green);
  border-color: rgba(14, 109, 93, 0.32);
  background: rgba(255, 255, 255, 0.74);
}

.development-status {
  min-height: 26px;
  margin: 12px 6px 0;
  color: var(--green);
  font-size: 14px;
  text-align: right;
}

.development-status.is-error {
  color: var(--red-deep);
}

@media (max-width: 1100px) {
  .development-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .development-summary {
    width: 100%;
  }

  .teacher-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .development-page .site-header {
    gap: 6px;
    padding: 8px 10px;
  }

  .development-page .brand-lockup {
    justify-content: flex-start;
  }

  .development-page .brand-lockup img {
    width: 38px;
    height: 38px;
  }

  .development-page .brand-lockup strong {
    font-size: 18px;
  }

  .development-page .brand-lockup em {
    font-size: 9px;
  }

  .development-page .site-nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .development-page .site-nav a:not([href="/"]):not([href="/student-development.html"]) {
    display: none;
  }

  .development-main {
    width: min(100% - 20px, 1540px);
    padding-top: 24px;
    padding-bottom: 118px;
  }

  .development-heading {
    gap: 18px;
    margin-bottom: 20px;
  }

  .development-heading h1 {
    font-size: 46px;
  }

  .development-heading p:not(.section-kicker) {
    font-size: 15px;
  }

  .development-summary {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .development-summary span + span {
    border-top: 0;
    border-left: 1px solid rgba(14, 109, 93, 0.14);
  }

  .development-summary span {
    min-width: 0;
    padding: 11px 5px;
    font-size: 12px;
  }

  .development-summary strong {
    font-size: 22px;
  }

  .date-panel {
    align-items: stretch;
    flex-direction: column;
    gap: 16px;
    padding: 18px 16px;
  }

  .date-controls {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .date-controls .compact-button {
    padding-right: 7px;
    padding-left: 7px;
    font-size: 14px;
    white-space: nowrap;
  }

  .date-input-label {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  .date-input-label input {
    width: 100%;
  }

  .table-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .teacher-settings summary {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 17px 16px;
  }

  .teacher-settings summary span:first-child,
  .teacher-settings .summary-hint {
    grid-column: 1;
  }

  .teacher-settings summary::after {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: center;
  }

  .summary-hint {
    margin-left: 0;
  }

  .teacher-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 0 16px 16px;
  }

  .settings-actions,
  .teacher-settings summary,
  .table-toolbar {
    padding-right: 16px;
    padding-left: 16px;
  }

  .running-table-wrap {
    overflow: visible;
  }

  .running-table {
    min-width: 0;
  }

  .running-table thead {
    display: none;
  }

  .running-table,
  .running-table tbody,
  .running-table tr,
  .running-table td {
    display: block;
    width: 100% !important;
  }

  .running-table tr {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: calc(100% - 20px) !important;
    margin: 0 10px 12px;
    overflow: hidden;
    border: 1px solid rgba(43, 33, 28, 0.13);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.48);
  }

  .running-table td {
    position: relative;
    min-height: 66px;
    padding: 29px 11px 11px;
    border-right: 0;
    background: transparent !important;
    text-align: left;
  }

  .running-table td::before {
    content: attr(data-label);
    position: absolute;
    top: 9px;
    left: 11px;
    color: var(--green);
    font-size: 11px;
    font-weight: 700;
  }

  .running-table .class-cell,
  .running-table .teacher-cell,
  .running-table .daily-attendance-cell,
  .running-table .leave-reason-cell,
  .running-table .accompanied-cell {
    grid-column: 1 / -1;
  }

  .class-cell {
    font-size: 18px;
  }

  .teacher-cell {
    min-height: 54px !important;
  }

  .running-table input[type="number"] {
    min-height: 44px;
  }

  .running-table textarea {
    min-height: 64px;
  }

  .accompanied-control {
    width: 100%;
    max-width: 280px;
  }

  .accompanied-button {
    min-height: 44px;
  }

  .development-actions {
    position: fixed;
    z-index: 80;
    right: max(10px, env(safe-area-inset-right));
    bottom: max(8px, env(safe-area-inset-bottom));
    left: max(10px, env(safe-area-inset-left));
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    width: auto;
    margin: 0;
    padding: 8px;
  }

  .development-actions .button {
    min-height: 48px;
    padding-right: 14px;
    padding-left: 14px;
  }
}

.long-leave-link { display: block; margin-top: 5px; color: var(--green); font-size: 13px; line-height: 1.5; padding: 8px 0; text-decoration: underline; }
.readonly-count output { display: block; font-weight: 700; font-size: 20px; font-variant-numeric: tabular-nums; }
.readonly-count small { display: block; color: var(--ink-soft); font-size: 11px; }
.expected-attendance-cell.is-inconsistent output,
.expected-attendance-cell.is-inconsistent small { color: var(--red-deep); }
.unconfirmed-leave-note { display: block; margin-top: 5px; color: var(--red-deep); font-size: 12px; line-height: 1.5; }
.leave-count-breakdown { max-width: 100%; white-space: normal; line-height: 1.7; border-radius: 12px; }
.leave-back { display: inline-flex; align-items: center; margin-bottom: 20px; text-decoration: none; }
.privacy-note { color: var(--ink-soft); line-height: 1.6; margin-bottom: 20px; font-size: 14px; }
.long-leave-form { padding: 24px; }
.long-leave-form h2 { margin: 0 0 20px; font-size: 22px; }
.leave-form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.leave-form-grid label, .proof-picker { display: grid; gap: 8px; min-width: 0; color: var(--ink); font-size: 15px; }
.leave-form-grid input:not([type="file"]):not([type="checkbox"]), .leave-form-grid textarea, .leave-form-grid select { width: 100%; min-width: 0; box-sizing: border-box; border: 1px solid var(--line, #c7cfc6); border-radius: 9px; background: rgba(255,255,255,.8); padding: 12px; font: inherit; min-height: 46px; }
.leave-form-grid [data-pending-control] > span { display: flex; align-items: center; gap: 10px; min-height: 44px; }
.leave-form-grid input[type="checkbox"] { width: 22px; height: 22px; flex: none; accent-color: var(--green); }
.leave-form-grid textarea { resize: vertical; }
.leave-form-grid small { color: var(--ink-soft); font-size: 13px; line-height: 1.5; }
.leave-wide { grid-column: 1 / -1; }
.proof-picker { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.proof-picker > span, .proof-picker > small { width: 100%; }
.proof-picker label { position: relative; display: inline-flex; align-items: center; min-height: 44px; overflow: hidden; }
.proof-picker input[type="file"] { position: absolute; width: 1px; height: 1px; opacity: 0; }
.proof-picker label:focus-within, .leave-form-grid input:focus-visible, .leave-form-grid textarea:focus-visible, .leave-form-grid select:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }
.leave-form-actions, .leave-card-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.leave-list { display: grid; gap: 18px; margin-top: 22px; }
.leave-card { padding: 22px; min-width: 0; }
.leave-card-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 14px; }
.leave-card-heading h2 { font-size: 23px; margin: 0; }
.leave-card-heading span, .leave-period { color: var(--ink-soft); font-size: 13px; }
.leave-reason { white-space: pre-wrap; overflow-wrap: anywhere; line-height: 1.7; }
.proof-gallery { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; margin-top: 20px; }
.proof-gallery[hidden] { display: none; }
.proof-gallery img { display: block; width: 100%; height: auto; border-radius: 8px; }
.leave-card button, .long-leave-form button { min-height: 44px; }
.leave-card button:disabled { opacity: .55; cursor: not-allowed; }
@media (max-width: 760px) {
  .development-summary { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .running-table .readonly-count { padding-top: 11px; }
  .running-table .readonly-count::before { position: static; display: block; margin-bottom: 8px; line-height: 1.5; }
  .long-leave-form, .leave-card { padding: 18px 16px; }
  .leave-form-grid { grid-template-columns: 1fr; gap: 16px; }
  .leave-form-grid input:not([type="file"]), .leave-form-grid textarea, .leave-form-grid select { font-size: 16px; }
  .leave-form-actions { position: sticky; bottom: 8px; padding: 10px 0; background: var(--paper, #f6eddd); }
  .proof-gallery { grid-template-columns: 1fr; }
  .long-leave-link { min-height: 28px; }
}

@media (max-width: 430px) {
  .teacher-grid {
    grid-template-columns: 1fr;
  }
}

/* A compact, touch-friendly view of all classes for collecting running counts. */
.table-tools { display:flex; align-items:center; gap:10px; flex-wrap:wrap; justify-content:flex-end; }
.quick-arrivals-open { color:var(--green); border-color:rgba(14,109,93,.4); background:#f0f6ef; font-weight:700; min-height:44px; }
.quick-arrivals-dialog { box-sizing:border-box; width:min(760px,calc(100% - 24px)); max-width:760px; max-height:min(90vh,720px); max-height:min(90dvh,720px); padding:0; border:1px solid #bfcfc4; border-radius:18px; background:#fffdf8; color:var(--ink); box-shadow:0 20px 70px rgba(19,45,34,.25); overflow:hidden; }
.quick-arrivals-dialog::backdrop { background:rgba(14,34,26,.58); }
.quick-arrivals-dialog[open] { display:flex; flex-direction:column; }
.quick-arrivals-head { display:flex; align-items:flex-start; justify-content:space-between; gap:12px; padding:18px 20px 12px; }
.quick-arrivals-head h2 { margin:4px 0 4px; font-size:23px; line-height:1.3; color:#173d33; }
.quick-arrivals-head h2:focus { outline:none; }
.quick-arrivals-head p:not(.panel-label) { margin:3px 0; color:#53685c; font-size:13px; line-height:1.45; }
.quick-arrivals-head .quick-arrivals-date { font-weight:700; color:#245c49; }
.quick-arrivals-close { flex:none; min-width:56px; }
.quick-arrivals-list { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); align-content:start; gap:8px; overflow-y:auto; padding:4px 20px 14px; overscroll-behavior:contain; }
.quick-arrivals-item { display:flex; align-items:center; justify-content:space-between; gap:5px; min-width:0; padding:6px 8px; border:1px solid #d7e2d9; border-radius:10px; background:#f6f9f4; font-weight:700; color:#244237; font-size:14px; }
.quick-arrivals-item span { min-width:0; line-height:1.25; white-space:nowrap; }
.quick-arrivals-item input { box-sizing:border-box; width:73px; min-width:0; height:46px; padding:6px; border:1px solid #a9bdb0; border-radius:8px; background:white; color:#172e26; font:inherit; font-size:16px; text-align:center; }
.quick-arrivals-item input::placeholder { color:#64796d; font-size:12px; font-weight:400; }
.quick-arrivals-item input:focus-visible { outline:3px solid rgba(14,109,93,.25); outline-offset:1px; border-color:#176b55; }
.quick-arrivals-item input[aria-invalid="true"] { border-color:#a52831; outline:2px solid rgba(165,40,49,.22); }
.quick-arrivals-footer { padding:10px 20px max(14px,env(safe-area-inset-bottom)); border-top:1px solid #d8e3da; background:#fffdf8; }
.quick-arrivals-footer p { margin:0 0 8px; font-size:13px; color:#53685c; }
.quick-arrivals-footer p.is-error { color:#a52831; }
.quick-arrivals-footer button { min-height:46px; width:100%; cursor:pointer; }
.quick-arrivals-footer button:disabled { opacity:.55; cursor:wait; }
@media(max-width:760px){ .table-tools { width:100%; justify-content:space-between; } .quick-arrivals-dialog { width:calc(100% - 20px); } .quick-arrivals-head { padding:14px 14px 8px; } .quick-arrivals-head h2 { font-size:20px; } .quick-arrivals-list { grid-template-columns:repeat(2,minmax(0,1fr)); padding:4px 12px 12px; gap:6px; } .quick-arrivals-item { padding:4px 5px; font-size:13px; } .quick-arrivals-item input { width:65px; } .quick-arrivals-footer { padding:8px 14px max(12px,env(safe-area-inset-bottom)); } }
@media(max-width:360px){ .quick-arrivals-item { gap:2px; padding:4px; font-size:12px; } .quick-arrivals-item input { width:57px; padding:4px; } .quick-arrivals-item input::placeholder { font-size:11px; } }