/* 受講者向けポータルの共通スタイル。CSP: style-src/font-src 'self' のため外部フォントは使わない。 */
:root {
  --font:
    "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", Meiryo,
    system-ui, sans-serif;
  --t-micro: 0.75rem;
  --t-small: 0.875rem;
  --t-body: 1rem;
  --t-h3: 1.125rem;
  --t-h2: 1.25rem;
  --t-h1: 1.5rem;
  --bg: #f4f6fa;
  --surface: #ffffff;
  --surface-2: #eef2f8;
  --text: #1c2430;
  --muted: #5a6675;
  --border: #dde3ec;
  --primary: #1d4ed8;
  --primary-hover: #1a44bb;
  --on-primary: #ffffff;
  --ring: #2563eb;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 2px 6px rgba(16, 24, 40, 0.08);
  --ok-bg: #e5f5ec;
  --ok-text: #14733f;
  --go-bg: #dce8ff;
  --go-text: #1a44bb;
  --wait-bg: #fbeecf;
  --wait-text: #855400;
  --lock-bg: #e9edf3;
  --lock-text: #64707f;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e131a;
    --surface: #171f2a;
    --surface-2: #1f2937;
    --text: #e6ecf3;
    --muted: #9aa6b6;
    --border: #2a3441;
    --primary: #3f74ec;
    --primary-hover: #5a8bf5;
    --on-primary: #ffffff;
    --ring: #6a99f6;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 2px 8px rgba(0, 0, 0, 0.35);
    --ok-bg: rgba(38, 170, 105, 0.16);
    --ok-text: #86e2ac;
    --go-bg: rgba(77, 130, 243, 0.18);
    --go-text: #a9c6ff;
    --wait-bg: rgba(215, 160, 40, 0.18);
    --wait-text: #f0c977;
    --lock-bg: rgba(150, 165, 185, 0.14);
    --lock-text: #a6b2c1;
  }
}

* {
  box-sizing: border-box;
}
html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  font-family: var(--font);
  font-size: var(--t-body);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
h1,
h2,
h3 {
  line-height: 1.25;
}
h1 {
  font-size: var(--t-h1);
}
h2 {
  font-size: var(--t-h2);
}
h3 {
  font-size: var(--t-h3);
}

/* ヘッダー / ナビ */
header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  padding: 0.85rem clamp(1rem, 4vw, 2rem);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
header > a:first-of-type {
  font-size: var(--t-h3);
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--text);
  text-decoration: none;
}
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
}
nav a {
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius-sm);
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--t-small);
}
nav a:hover {
  background: var(--surface-2);
  color: var(--text);
}
.nav-logout {
  min-height: 44px;
  margin: 0;
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: var(--t-small);
}
.nav-logout:hover {
  background: var(--surface-2);
  color: var(--text);
}

/* 本文レイアウト */
main {
  max-width: 56rem;
  margin: 0 auto;
  padding: clamp(1.25rem, 4vw, 2.5rem) clamp(1rem, 4vw, 2rem) 4rem;
}
main h1 {
  font-size: clamp(var(--t-h1), 4vw, 1.75rem);
  font-weight: 800;
  margin: 0 0 1.25rem;
}
main h2 {
  margin: 2rem 0 0.75rem;
}
main p {
  margin: 0 0 1rem;
}
a {
  color: var(--primary);
  text-underline-offset: 2px;
}
a:hover {
  color: var(--primary-hover);
}
time {
  font-size: var(--t-micro);
}

/* お知らせ / 導線コールアウト */
.notice {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 5px solid var(--primary);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
  margin: 0 0 1.75rem;
  box-shadow: var(--shadow);
  font-size: var(--t-body);
}
.notice a {
  font-weight: 700;
}

/* 研修一覧カード */
.training-list-note {
  margin: -0.75rem 0 1.5rem;
  color: var(--muted);
  font-size: var(--t-small);
}
.session-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.session-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.7rem;
}
.session-card.is-locked {
  opacity: 0.72;
}
.session-card__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
}
.session-card__duration {
  white-space: nowrap;
  font-weight: 400;
  color: var(--muted, #5b6472);
  font-size: var(--t-small);
  margin-left: 0.35rem;
}
.session-card__title {
  font-size: var(--t-h3);
  line-height: 1.25;
  font-weight: 700;
}
.session-card__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
}
.session-preparation-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.45rem 0.75rem;
  font-weight: 700;
}

/* 導入3ページ */
.introduction {
  margin-bottom: 2rem;
}
.introduction h2 {
  margin-top: 0;
}
.intro-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}
.intro-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-height: 7rem;
  padding: 0.95rem 0.95rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  box-shadow: var(--shadow);
}
.intro-card strong {
  color: var(--primary);
  font-size: var(--t-h3);
  line-height: 1.25;
}
.intro-card span {
  font-size: var(--t-small);
  color: var(--muted, #5b6472);
}
.intro-card span {
  color: var(--muted);
}
.intro-card:hover {
  border-color: var(--primary);
  background: var(--surface-2);
  color: var(--text);
}
.onboarding-shell {
  max-width: 72rem;
}
.onboarding-page {
  --pf-line: var(--surface-2);
}
.onboarding-page .lead {
  max-width: 52rem;
  color: var(--muted);
  font-size: var(--t-body);
}
.onboarding-page h3 {
  margin: 1.2rem 0 0.5rem;
}
.responsive-table {
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.responsive-table table {
  width: 100%;
  min-width: 42rem;
  border-collapse: collapse;
}
.responsive-table th,
.responsive-table td {
  padding: 0.8rem 0.9rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--border);
}
.responsive-table thead th {
  color: var(--muted);
  background: var(--surface-2);
}
.responsive-table tbody tr:last-child > * {
  border-bottom: 0;
}
.diagram-scroll {
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.ai-map,
.private-schematic {
  display: block;
  width: 100%;
  min-width: 46rem;
  height: auto;
  color: var(--text);
}
.ai-map__axis {
  fill: none;
  stroke: currentColor;
  stroke-width: 3;
}
.ai-map__axis-label {
  fill: var(--muted);
  font-size: 17px;
  font-weight: 700;
}
.ai-map__card > rect {
  fill: var(--surface-2);
  stroke: var(--border);
  stroke-width: 2;
}
.ai-map__card[data-ai-type="chat"] > rect {
  stroke: #3972d8;
}
.ai-map__card[data-ai-type="rag"] > rect {
  stroke: #17855a;
}
.ai-map__card[data-ai-type="agent"] > rect {
  stroke: #9b5a12;
}
.ai-map__card use {
  color: var(--text);
}
.ai-map__title {
  fill: var(--text);
  font-size: 24px;
  font-weight: 800;
}
.ai-map__copy {
  fill: var(--text);
  font-size: 16px;
}
.ai-map__focus {
  fill: var(--primary);
  font-weight: 800;
}
.diagram-note {
  margin-top: 0.75rem;
  color: var(--muted);
}
.stage-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  padding: 0;
  list-style: none;
}
.stage-list li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.9rem 1rem;
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-sm);
  background: var(--surface);
}
.stage-list span {
  color: var(--muted);
}
.role-summary-grid,
.outcome-stages {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}
.content-card,
.preparation-section,
.growth-step {
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.content-card h2,
.content-card h3,
.preparation-section h2 {
  margin-top: 0;
}
.content-card p:last-child,
.preparation-section p:last-child,
.growth-step p:last-child {
  margin-bottom: 0;
}
.icon-legend {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}
.icon-legend__item {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  align-items: center;
  gap: 0.8rem;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
}
.icon-legend__item h3,
.icon-legend__item p {
  margin: 0;
}
.icon-legend__item h3 span {
  color: var(--muted);
  font-size: var(--t-small);
}
.pf-icon {
  width: 3rem;
  height: 3rem;
}
.outcome-stages {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.check-list {
  padding-left: 1.35rem;
}
.check-list li + li {
  margin-top: 0.65rem;
}
.role-highlight {
  padding: 0.45rem 0.55rem;
  border-radius: var(--radius-sm);
  background: var(--go-bg);
  color: var(--go-text);
  font-weight: 700;
}
.growth-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.4rem;
}
.growth-step {
  position: relative;
}
.growth-step:not(:last-child)::after {
  position: absolute;
  z-index: 1;
  top: 50%;
  right: -1.05rem;
  content: "→";
  color: var(--primary);
  font-size: var(--t-h2);
  font-weight: 800;
  transform: translateY(-50%);
}
.growth-step--current {
  border-color: var(--primary);
}
.growth-step__label {
  color: var(--primary);
  font-size: var(--t-small);
  font-weight: 800;
}
.prompt-elements {
  margin-bottom: 0;
}
.prompt-elements div {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  gap: 0.5rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--border);
}
.prompt-elements div:last-child {
  border-bottom: 0;
}
.prompt-elements dt {
  font-weight: 800;
}
.prompt-elements dd {
  margin: 0;
}
.preparation-page {
  display: grid;
  gap: 1rem;
}
.preparation-section {
  padding: 1.15rem 1.25rem;
}
.section-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.4rem 1rem;
}
.section-heading span {
  color: var(--muted);
  font-weight: 700;
}
.service-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding: 0;
  list-style: none;
}
.service-list a {
  display: inline-block;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-2);
  font-weight: 700;
}
.callout {
  padding: 0.8rem 1rem;
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--surface-2);
}
.private-schematic__window {
  fill: var(--surface);
  stroke: var(--border);
  stroke-width: 3;
}
.private-schematic__bar {
  fill: var(--surface-2);
}
.private-schematic circle:not(.private-schematic__radio) {
  fill: var(--border);
}
.private-schematic__heading {
  fill: var(--text);
  font-size: 24px;
  font-weight: 800;
}
.private-schematic__arrow {
  fill: none;
  stroke: var(--primary);
  stroke-width: 4;
}
.private-schematic marker path {
  fill: var(--primary);
}
.private-schematic__label {
  fill: var(--muted);
  font-size: 20px;
  font-weight: 700;
}
.private-schematic__option {
  fill: var(--surface-2);
  stroke: var(--border);
  stroke-width: 2;
}
.private-schematic__option--selected {
  fill: var(--go-bg);
  stroke: var(--primary);
  stroke-width: 3;
}
.private-schematic__radio {
  fill: var(--surface);
  stroke: var(--muted);
  stroke-width: 2;
}
.private-schematic__radio--selected {
  fill: var(--primary);
  stroke: var(--primary);
}
.private-schematic__check {
  fill: none;
  stroke: var(--on-primary);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.private-schematic__option-text {
  fill: var(--text);
  font-size: 20px;
}
.private-schematic__option-text--selected {
  font-weight: 800;
}

@media (max-width: 760px) {
  .intro-card-grid,
  .stage-list,
  .role-summary-grid,
  .outcome-stages,
  .growth-flow,
  .icon-legend {
    grid-template-columns: 1fr;
  }
  .intro-card {
    min-height: 0;
  }
  .growth-step:not(:last-child)::after {
    top: auto;
    right: 50%;
    bottom: -1.55rem;
    transform: translateX(50%) rotate(90deg);
  }
}

/* ステータスバッジ */
.badge {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  font-size: var(--t-small);
  font-weight: 700;
  white-space: nowrap;
}
.badge--available {
  background: var(--go-bg);
  color: var(--go-text);
}
.badge--complete {
  background: var(--ok-bg);
  color: var(--ok-text);
}
.badge--preparing {
  background: var(--wait-bg);
  color: var(--wait-text);
}
.badge--locked {
  background: var(--lock-bg);
  color: var(--lock-text);
}

/* フォーム */
form {
  margin: 0;
}
label {
  display: block;
  margin-top: 1.1rem;
  font-weight: 600;
}
input,
textarea,
select {
  display: block;
  font: inherit;
  color: var(--text);
  background: var(--surface);
  padding: 0.65rem 0.75rem;
  width: min(100%, 34rem);
  min-height: 44px;
  margin-top: 0.4rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
textarea {
  line-height: 1.6;
  min-height: 8rem;
  resize: vertical;
}
input:hover,
textarea:hover,
select:hover {
  border-color: var(--muted);
}
/* iOS Safari は font-size が 16px 未満の入力欄にフォーカスすると自動でズームし、
   blur しても元の倍率に戻さない。管理画面は .admin-page で 14px にしているため、
   タッチ端末に限りフォーム部品だけ 16px 以上に引き上げる(縮小はしない)。 */
@media (pointer: coarse) {
  input,
  textarea,
  select {
    font-size: max(16px, 1em);
  }
}

/* アンケートの設問グループ */
fieldset {
  margin: 1.25rem 0 0;
  padding: 1.1rem 1.2rem 0.4rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}
legend {
  font-weight: 700;
  font-size: var(--t-h3);
  line-height: 1.25;
  padding: 0 0.4rem;
}
fieldset label {
  margin-top: 0.3rem;
}
/* 選択肢(ラジオ/チェック)を押しやすいカード状に */
fieldset > label {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-weight: 500;
  padding: 0.6rem 0.7rem;
  margin-top: 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}
fieldset > label:hover {
  background: var(--surface-2);
}
fieldset input[type="radio"],
fieldset input[type="checkbox"] {
  width: auto;
  min-height: 0;
  margin-top: 0.25rem;
  flex: 0 0 auto;
  width: 1.15rem;
  height: 1.15rem;
  accent-color: var(--primary);
}
fieldset textarea,
fieldset > label:has(> textarea) {
  width: min(100%, 34rem);
}

/* ボタン(submit と .btn リンク) */
button,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 44px;
  padding: 0.7rem 1.3rem;
  margin-top: 1.25rem;
  font: inherit;
  font-weight: 700;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--primary);
  color: var(--on-primary);
  text-decoration: none;
  cursor: pointer;
}
button:hover,
.btn:hover {
  background: var(--primary-hover);
  color: var(--on-primary);
}
button:active,
.btn:active {
  transform: translateY(1px);
}
/* カード内アクションは余白を詰める */
.session-card__actions .btn {
  margin-top: 0;
  padding: 0.55rem 1.05rem;
  min-height: 44px;
}
.btn--ghost {
  background: transparent;
  color: var(--primary);
  border-color: var(--border);
}
.btn--ghost:hover {
  background: var(--surface-2);
  color: var(--primary-hover);
}

/* エラー表示 */
[role="alert"] {
  color: #b4231f;
  font-weight: 700;
  margin-top: 1rem;
}
@media (prefers-color-scheme: dark) {
  [role="alert"] {
    color: #ff9d97;
  }
}

/* Q&A 一覧 */
#questions {
  margin-top: 1.5rem;
  display: grid;
  gap: 0.85rem;
}
#questions article,
#questions li,
#questions .qa {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
  box-shadow: var(--shadow);
}

/* 管理画面 */
.admin-page {
  max-width: 78rem;
  font-size: var(--t-small);
}
#admin-error:empty,
#admin-status:empty {
  display: none;
}
#admin-status {
  color: var(--ok-text);
  font-weight: 700;
}
.admin-jump {
  display: none;
}
.admin-sections {
  display: grid;
  gap: 1.25rem;
}
.admin-section {
  overflow: hidden;
  scroll-margin-top: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.admin-section__heading {
  padding: 1rem 1.25rem;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.admin-section__heading h2 {
  margin: 0;
}
.admin-section__grid {
  display: grid;
  grid-template-columns: minmax(16rem, 0.8fr) minmax(0, 1.2fr);
  gap: 1rem;
  padding: 1rem 1.25rem 1.25rem;
}
.admin-panel {
  min-width: 0;
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.admin-section > .admin-panel {
  margin: 1rem 1.25rem;
}
.admin-section > .admin-panel + .admin-panel {
  margin-top: 0;
}
.admin-panel h3 {
  margin: 0 0 0.85rem;
}
.admin-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  gap: 0.85rem 1rem;
}

.admin-form-grid__full {
  grid-column: 1 / -1;
}
.form-field label {
  margin-top: 0;
}
.form-field input,
.form-field select {
  width: 100%;
}
.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1rem;
}
.form-actions button {
  margin-top: 0;
}
.admin-table-wrap {
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  -webkit-overflow-scrolling: touch;
}
.admin-table-wrap:has(.admin-empty) {
  border-style: dashed;
}
.admin-table {
  width: 100%;
  min-width: 36rem;
  border-collapse: collapse;
  font-size: var(--t-small);
  line-height: 1.6;
}
.admin-table th,
.admin-table td {
  padding: 0.75rem 0.85rem;
  text-align: left;
  vertical-align: middle;
}
.admin-table th {
  color: var(--muted);
  background: var(--surface-2);
  font-weight: 700;
  white-space: nowrap;
}
.admin-table td {
  border-top: 1px solid var(--border);
}
.admin-table tbody tr:hover {
  background: var(--surface-2);
}
.admin-table td:last-child {
  width: 1%;
  white-space: nowrap;
}
.admin-action {
  min-height: 44px;
  margin-top: 0;
  padding: 0.55rem 0.9rem;
  font-size: var(--t-small);
}
.admin-action-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.admin-inline-form {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.admin-inline-form__input {
  width: min(16rem, 45vw);
  margin-top: 0;
}
.btn--danger {
  color: #b4231f;
  border-color: currentColor;
}
.btn--danger:hover {
  color: #8f1d1a;
  background: color-mix(in srgb, currentColor 8%, transparent);
}
@media (prefers-color-scheme: dark) {
  .btn--danger {
    color: #ff9d97;
  }
  .btn--danger:hover {
    color: #ffc0bc;
  }
}
.admin-empty {
  margin: 0;
  padding: 1rem;
  color: var(--muted);
  text-align: center;
}

.responsive-table th[scope="row"] {
  white-space: nowrap;
}
/* 研修概要の構成表: 狭い画面では横スクロールに逃がさず縦積みにする。
   一番伝えたい「持ち帰るもの」が画面外に隠れてしまうため。 */
@media (max-width: 40rem) {
  .responsive-table:has(.program-table) {
    overflow-x: visible;
  }
  .program-table,
  .program-table tbody,
  .program-table tr,
  .program-table th,
  .program-table td {
    display: block;
    width: auto;
    /* 横スクロール前提の min-width を外さないと、縦積みでも文字が切れる */
    min-width: 0;
    overflow-wrap: anywhere;
  }
  .responsive-table .program-table {
    min-width: 0;
    padding: 0 0.9rem;
  }
  .program-table thead {
    display: none;
  }
  .program-table tr {
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--border);
  }
  .program-table tr:last-child {
    border-bottom: 0;
  }
  .program-table th[scope="row"] {
    padding: 0 0 0.35rem;
    border: 0;
    font-size: var(--t-h3);
  }
  .program-table td {
    padding: 0.15rem 0;
    border: 0;
  }
  .program-table td::before {
    content: attr(data-label);
    display: block;
    color: var(--muted);
    font-size: var(--t-micro);
    font-weight: 700;
  }
  /* 「第1回 約120分」だけ横に並べる。セル内の副題は行のまま。 */
  .program-table th[scope="row"] .table-sub {
    display: inline;
    margin-left: 0.5rem;
    font-size: var(--t-small);
  }
}
.table-sub {
  display: block;
  white-space: nowrap;
  margin-top: 0.1rem;
  color: var(--muted);
  font-size: var(--t-micro);
  font-weight: 400;
}

.form-hint {
  margin: 0.25rem 0 0.75rem;
  color: var(--muted);
  font-size: var(--t-small);
  line-height: 1.6;
}
.admin-export-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.admin-export-list .btn {
  width: 100%;
  margin-top: 0;
}
.admin-survey-definitions {
  display: grid;
  gap: 0.75rem;
}
.admin-survey-definition {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
}
.admin-survey-definition > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  cursor: pointer;
}
.admin-survey-definition__meta,
.admin-survey-question__meta {
  color: var(--muted);
  font-size: var(--t-micro);
}
.admin-survey-definition__meta {
  margin: 0;
  padding: 0 1rem 0.85rem;
}
.admin-survey-question-list {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0 1rem 1rem 2.75rem;
}
.admin-survey-question-list > li {
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.admin-survey-question-list p {
  margin: 0;
}
.admin-survey-question-list ul {
  margin-bottom: 0;
}
.admin-question-list {
  display: grid;
  gap: 0.85rem;
  padding: 1rem 1.25rem 1.25rem;
}
.admin-question-card {
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.admin-question-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  margin-bottom: 0.65rem;
  font-size: var(--t-micro);
}
.admin-question-card__body {
  white-space: pre-wrap;
}
.admin-question-card__answer {
  padding: 0.7rem 0.85rem;
  background: var(--surface-2);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.admin-question-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}
.admin-question-card__actions button {
  margin-top: 0;
}

/* 管理者向け進捗 */
.admin-progress-back {
  margin-bottom: 1rem;
}
.admin-progress-note {
  color: var(--muted);
}
.admin-progress-learners {
  display: grid;
  gap: 1.25rem;
}
.admin-progress-learner {
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.admin-progress-learner__heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.admin-progress-learner__heading h2 {
  margin: 0;
}
.admin-progress-learner__heading p {
  margin: 0.25rem 0 0;
  color: var(--muted);
}
.admin-progress-sessions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding: 1rem;
}
.admin-progress-session {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.admin-progress-session__heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
}
.admin-progress-session__heading h3 {
  margin: 0;
}
.admin-progress-session__heading strong {
  color: var(--primary);
  font-size: var(--t-h2);
}
.admin-progress-session progress {
  width: 100%;
  height: 0.8rem;
  margin: 0.75rem 0;
  accent-color: var(--primary);
}
.admin-progress-summary {
  display: grid;
  gap: 0.5rem;
  margin: 0 0 1rem;
}
.admin-progress-summary div {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  gap: 0.5rem;
}
.admin-progress-summary dt {
  color: var(--muted);
}
.admin-progress-summary dd {
  margin: 0;
  font-weight: 600;
}
.admin-progress-table {
  min-width: 32rem;
}
.admin-progress-table td:last-child {
  width: auto;
}

@media (min-width: 641px) {
  .admin-jump {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
  }
  .admin-jump a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0.5rem 0.8rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    color: var(--text);
  }
  .admin-sections .admin-table-wrap {
    max-height: 60vh;
    overflow-x: auto;
    overflow-y: auto;
  }
  .admin-sections .admin-table thead th {
    position: sticky;
    top: 0;
    z-index: 1;
    background: var(--surface-2);
  }
  .admin-sections .admin-table th,
  .admin-sections .admin-table td {
    padding: 0.5rem 0.75rem;
  }
  .admin-sections .admin-table th[data-label="状態"],
  .admin-sections .admin-table td[data-label="状態"] {
    width: 8rem;
  }
  .admin-sections .admin-table th:last-child,
  .admin-sections .admin-table td:last-child {
    width: 15rem;
    min-width: 15rem;
    white-space: normal;
  }
  .admin-sections .admin-table tbody tr:nth-child(even) {
    background: color-mix(in srgb, var(--surface-2) 45%, var(--surface));
  }
  .admin-sections .admin-table tbody tr:hover {
    background: var(--surface-2);
  }
  .admin-sections .admin-action {
    min-height: 40px;
    padding: 0.3rem 0.65rem;
  }
  .admin-sections .admin-action-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
  }
}

@media (min-width: 1024px) {
  main.admin-page {
    max-width: 88rem;
  }
  main.admin-page:has(> .admin-jump) {
    display: grid;
    grid-template-columns: 15rem minmax(0, 1fr);
    gap: 1.5rem;
    align-items: start;
  }
  main.admin-page:has(> .admin-jump) > h1,
  main.admin-page:has(> .admin-jump) > #admin-error,
  main.admin-page:has(> .admin-jump) > #admin-status {
    grid-column: 1 / -1;
  }
  main.admin-page:has(> .admin-jump) > .admin-jump {
    grid-column: 1;
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0.35rem;
    position: sticky;
    top: 1rem;
    align-self: start;
    margin: 0;
  }
  main.admin-page:has(> .admin-jump) > .admin-jump a {
    justify-content: flex-start;
    min-height: 44px;
    border-color: transparent;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--muted);
    text-align: left;
  }
  main.admin-page:has(> .admin-jump) > .admin-jump a:hover {
    background: var(--surface-2);
    color: var(--text);
  }
  main.admin-page:has(> .admin-jump) > .admin-jump a[aria-current="true"] {
    border-color: color-mix(in srgb, var(--primary) 25%, var(--border));
    background: color-mix(in srgb, var(--primary) 12%, var(--surface));
    color: var(--primary);
  }
  main.admin-page:has(> .admin-jump) > .admin-sections {
    grid-column: 2;
    min-width: 0;
  }
  main.admin-page:has(> .admin-jump) .admin-section__grid {
    grid-template-columns: minmax(14rem, 0.6fr) minmax(0, 1.4fr);
  }
}

@media (max-width: 720px) {
  .admin-section__grid {
    grid-template-columns: 1fr;
  }
  .admin-section__heading {
    padding-inline: 1rem;
  }
  .admin-section__grid,
  .admin-question-list {
    padding: 1rem;
  }
  .admin-section > .admin-panel {
    margin-inline: 1rem;
  }
  .form-actions > button {
    flex: 1 1 10rem;
  }
  .admin-progress-sessions {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  /* アンケート設問リスト: 深いインデントと長文の非折返しで横溢れしていた */
  .admin-survey-question-list {
    padding-left: 1rem;
  }
  .admin-survey-question-list > li,
  .admin-survey-question-list p,
  .admin-survey-question-list ul,
  .admin-survey-question-list li,
  .admin-survey-question__meta,
  .admin-survey-definition__meta {
    min-width: 0;
    overflow-wrap: anywhere;
  }

  header {
    align-items: flex-start;
    gap: 0.5rem;
  }
  header nav {
    flex: 1 1 100%;
    flex-wrap: wrap;
    gap: 0.4rem;
  }
  .session-card__actions > * {
    flex: 1 1 100%;
    width: 100%;
  }
  .session-preparation-link {
    justify-content: center;
  }
  .admin-jump {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
  }
  .admin-jump a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0.5rem 0.8rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    color: var(--text);
  }
  .admin-sections .admin-table-wrap {
    max-height: 60vh;
    overflow-x: visible;
    overflow-y: auto;
  }
  .admin-sections .admin-table {
    min-width: 0;
  }
  .admin-sections .admin-table thead {
    display: none;
  }
  .admin-sections .admin-table tr {
    display: block;
    margin-bottom: 0.6rem;
    padding: 0.5rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
  }
  .admin-sections .admin-table td {
    display: grid;
    grid-template-columns: 7rem minmax(0, 1fr);
    gap: 0.5rem;
    align-items: center;
    min-width: 0;
    padding: 0.35rem 0;
    overflow-wrap: anywhere;
    border: 0;
  }
  .admin-sections .admin-table td::before {
    content: attr(data-label);
    color: var(--muted);
    font-size: var(--t-small);
    font-weight: 700;
  }
  .admin-sections .admin-table td:last-child {
    grid-template-columns: 1fr;
    width: auto;
    white-space: normal;
  }
  .admin-sections .admin-action-group,
  .admin-sections .admin-inline-form {
    flex-direction: column;
    align-items: stretch;
  }
  .admin-sections .admin-action,
  .admin-sections .admin-inline-form__input {
    width: 100%;
  }
}

/* フォーカス可視化 & スキップリンク(アクセシビリティ) */
:focus-visible {
  outline: 3px solid var(--ring);
  outline-offset: 2px;
}
.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 10;
  background: var(--surface);
  color: var(--text);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
}
/* Invitation onboarding */
.onboarding-page {
  width: min(100% - 2rem, 42rem);
  margin-inline: auto;
}
.onboarding-card,
.onboarding-page form,
.onboarding-page #registration-success,
.admin-invitation-result {
  padding: 1rem;
  margin-block: 1rem;
  border: 1px solid var(--border, #cbd5e1);
  border-radius: 0.75rem;
  background: #fff;
}
.onboarding-page dl div {
  display: grid;
  grid-template-columns: minmax(8rem, 1fr) 2fr;
  gap: 1rem;
  padding-block: 0.4rem;
}
.onboarding-page dt {
  font-weight: 700;
}
.onboarding-page input,
.admin-invitation-result input {
  width: 100%;
}
.onboarding-privacy {
  margin-block-end: 1.25rem;
  padding: 1rem;
  border: 1px solid var(--border, #cbd5e1);
  border-radius: 0.75rem;
  background: #f8fafc;
}
.onboarding-privacy h2 {
  margin-block-start: 0;
}
.onboarding-privacy h3 {
  margin-block: 1rem 0.25rem;
  font-size: 1rem;
}
.onboarding-privacy p {
  margin: 0;
}