/* Hallmark · genre: editorial-learning · macrostructure: Map / Diagram (two learning paths) · theme: School Notebook Commons · enrichment: semantic route labels only · nav: N6 school masthead · footer: Ft3 genuine index · audience: 小学1年〜中学3年・保護者・先生 · use: 学年区分から既存教材へ進む統合入口 · tone: 親しみやすく端正 · contrast: pass (40–41) · slop: pass (42–45) · honest: pass (46) · chrome: pass (47) · tokens: pass (48) · responsive: pass (49) · icons: pass (30) · mobile: pass (34, 49, 50–57) */
/* Hallmark · pre-emit critique: P5 H5 E5 S5 R5 V5 */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; overflow-x: clip; }
html { scroll-behavior: smooth; }
body {
  min-width: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
img { display: block; max-width: 100%; }
h1, h2, h3, p, dl, dd, figure { margin: 0; }
h1, h2, h3 { font-family: var(--font-display); font-style: normal; line-height: 1.15; letter-spacing: -0.025em; overflow-wrap: anywhere; min-width: 0; }
:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
.skip { position: fixed; inset-block-start: var(--space-sm); inset-inline-start: var(--space-sm); z-index: var(--z-skip); padding: var(--space-sm) var(--space-md); background: var(--color-ink); color: var(--color-on-dark); transform: translateY(-200%); }
.skip:focus { transform: none; }
.portal-shell { width: min(78rem, 100%); margin-inline: auto; padding-inline: max(var(--space-md), env(safe-area-inset-left)); padding-block-end: max(var(--space-xl), env(safe-area-inset-bottom)); }
.portal-nav { display: flex; align-items: center; justify-content: space-between; gap: var(--space-md); min-height: 5rem; border-block-start: var(--rule-heavy) solid var(--color-math); border-block-end: var(--rule-hair) solid var(--color-rule); }
.portal-brand { display: inline-flex; align-items: center; gap: var(--space-sm); min-height: 44px; text-decoration: none; white-space: nowrap; font-size: var(--text-sm); line-height: 1.25; }
.portal-brand img { width: 2.75rem; height: 2.75rem; border-radius: var(--radius-sm); }
.portal-brand b { font-family: var(--font-display); font-size: var(--text-base); }
.search-pill { display: inline-flex; align-items: center; gap: var(--space-sm); min-height: 44px; padding-inline: var(--space-md); border: var(--rule-hair) solid var(--color-rule-dark); border-radius: var(--radius-pill); background: var(--color-surface); color: var(--color-ink); cursor: pointer; white-space: nowrap; line-height: 1; transition: background-color var(--dur-short) var(--ease-out), transform var(--dur-micro) var(--ease-out); }
.search-pill kbd { padding: var(--space-2xs) var(--space-xs); border: var(--rule-hair) solid var(--color-rule); border-radius: var(--radius-sm); background: var(--color-paper-2); font-family: var(--font-mono); font-size: var(--text-xs); }
.portal-hero { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-xl); padding-block: var(--space-xl) var(--space-2xl); border-block-end: var(--rule-heavy) solid var(--color-ink); }
.portal-hero__copy { display: grid; align-content: center; gap: var(--space-lg); min-width: 0; }
.portal-hero h1 { max-width: 12ch; font-size: clamp(2.4rem, 9vw, 4.9rem); }
.portal-hero__copy > p { max-width: 58ch; color: var(--color-ink-2); }
.portal-stats { display: flex; flex-wrap: wrap; gap: var(--space-lg); }
.portal-stats div { display: flex; align-items: baseline; gap: var(--space-xs); padding-inline-end: var(--space-lg); border-inline-end: var(--rule-hair) solid var(--color-rule); }
.portal-stats dt { color: var(--color-muted); font-size: var(--text-sm); }
.portal-stats dd { order: -1; font-family: var(--font-mono); font-size: var(--text-lg); font-weight: 700; font-variant-numeric: tabular-nums; }
.portal-hero__icon { display: grid; justify-items: center; gap: var(--space-sm); }
.portal-hero__icon img { display: block; width: min(15rem, 58vw); height: auto; border-radius: 22%; }
.portal-hero__icon figcaption { max-width: 24ch; color: var(--color-muted); font-size: var(--text-sm); text-align: center; }
.subject-section { padding-block: var(--space-xl) var(--space-2xl); }
.rail-title { display: flex; align-items: end; justify-content: space-between; gap: var(--space-md); margin-block-end: var(--space-lg); }
.rail-title h2, .install-section h2 { font-size: var(--text-xl); }
.text-action { min-height: 44px; padding: 0; border: 0; border-block-end: var(--rule-hair) solid var(--color-ink); background: transparent; color: var(--color-ink); cursor: pointer; white-space: nowrap; transition: transform var(--dur-micro) var(--ease-out); }
.subject-grid { display: grid; grid-template-columns: minmax(0, 1fr); border-block-start: var(--rule-heavy) solid var(--color-ink); }
.subject-card { --subject: var(--color-math); --subject-soft: var(--color-math-soft); display: grid; grid-template-columns: 3rem minmax(0, 1fr); gap: var(--space-sm) var(--space-md); align-items: center; min-width: 0; min-height: 8.75rem; padding: var(--space-lg) 0; border-block-end: var(--rule-hair) solid var(--color-rule); text-decoration: none; transition: background-color var(--dur-short) var(--ease-out), transform var(--dur-micro) var(--ease-out); }
.subject-card--english { --subject: var(--color-english); --subject-soft: var(--color-english-soft); }
.subject-card--japanese { --subject: var(--color-japanese); --subject-soft: var(--color-japanese-soft); }
.subject-card--science { --subject: var(--color-science); --subject-soft: var(--color-science-soft); }
.subject-card--social { --subject: var(--color-social); --subject-soft: var(--color-social-soft); }
.subject-card__mark { display: grid; place-items: center; width: 3rem; aspect-ratio: 1; background: var(--subject); color: var(--color-on-dark); font-family: var(--font-display); font-size: var(--text-lg); line-height: 1; }
.subject-card__body { display: grid; gap: var(--space-xs); min-width: 0; }
.subject-card__body strong { font-family: var(--font-display); font-size: var(--text-md); }
.subject-card__body > span { color: var(--color-muted); font-size: var(--text-sm); }
.subject-card__count { grid-column: 2; color: var(--color-ink-2); font-size: var(--text-sm); font-variant-numeric: tabular-nums; }
.subject-card__count b { color: var(--subject); font-variant-numeric: tabular-nums; }
.subject-card__action { grid-column: 2; justify-self: start; min-height: 44px; display: inline-flex; align-items: center; color: var(--subject); font-weight: 700; line-height: 1; white-space: nowrap; }
.install-section { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-xl); padding: var(--space-xl); background: var(--color-ink); color: var(--color-on-dark); }
.install-copy { display: grid; align-content: start; gap: var(--space-lg); min-width: 0; }
.install-copy > p { max-width: 60ch; color: var(--color-on-dark-muted); }
.install-steps { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; }
.install-steps li { display: grid; grid-template-columns: 2.5rem minmax(0, 1fr); gap: var(--space-md); padding-block: var(--space-md); border-block-start: var(--rule-hair) solid var(--color-rule-dark); }
.install-steps li > span { display: grid; place-items: center; width: 2.5rem; height: 2.5rem; border: var(--rule-hair) solid var(--color-on-dark-muted); font-variant-numeric: tabular-nums; line-height: 1; }
.install-steps p { color: var(--color-on-dark-muted); }
.qr-panel { display: grid; align-content: center; justify-items: center; gap: var(--space-md); padding: var(--space-lg); background: var(--color-paper); color: var(--color-ink); }
.qr-panel img { display: block; width: min(19rem, 78vw); height: auto; aspect-ratio: 1; }
.qr-panel figcaption { display: grid; gap: var(--space-sm); justify-items: center; width: 100%; text-align: center; }
.qr-panel figcaption span { max-width: 100%; overflow-wrap: anywhere; font-family: var(--font-mono); font-size: var(--text-xs); }
.qr-download { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding-inline: var(--space-md); border: var(--rule-hair) solid var(--color-ink); text-decoration: none; line-height: 1; white-space: nowrap; }
.portal-footer { display: flex; flex-direction: column; gap: var(--space-sm); padding-block: var(--space-lg); border-block-start: var(--rule-hair) solid var(--color-rule); color: var(--color-muted); font-size: var(--text-sm); }
.portal-footer a { min-height: 44px; display: inline-flex; align-items: center; width: max-content; color: var(--color-ink); line-height: 1; white-space: nowrap; }
.search-dialog { position: fixed; inset: 0; width: min(42rem, calc(100% - 2rem)); max-height: min(84dvh, 46rem); margin: auto; padding: 0; border: var(--rule-heavy) solid var(--color-ink); border-radius: 0; background: var(--color-paper); color: var(--color-ink); }
.search-dialog::backdrop { background: var(--color-image-shade); }
.search-dialog__head { display: flex; align-items: start; justify-content: space-between; gap: var(--space-md); padding: var(--space-lg); border-block-end: var(--rule-hair) solid var(--color-rule); }
.search-dialog__head h2 { font-size: var(--text-lg); }
.search-dialog__head p { color: var(--color-muted); }
.dialog-close { display: grid; place-items: center; flex: 0 0 44px; width: 44px; height: 44px; border: var(--rule-hair) solid var(--color-rule-dark); background: var(--color-surface); color: var(--color-ink); cursor: pointer; font-size: var(--text-md); line-height: 1; }
.search-field { display: grid; gap: var(--space-xs); padding: var(--space-lg) var(--space-lg) 0; }
.search-field label { font-weight: 700; }
.search-field input { width: 100%; min-height: 48px; padding-inline: var(--space-md) 3rem; border: var(--rule-hair) solid var(--color-rule-dark); outline: 2px solid transparent; outline-offset: 1px; border-radius: 0; background: var(--color-surface); color: var(--color-ink); }
.search-field input::placeholder { color: var(--color-muted); opacity: 1; }
.search-field input:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 1px; }
.search-field input:disabled { opacity: 0.55; cursor: not-allowed; }
.search-field input[aria-invalid="true"] { border-color: var(--color-error); }
.search-field input[data-state="success"] { border-color: var(--color-success); }
.search-field input[data-state="loading"] { background: var(--color-paper-2); }
.search-status { min-height: 1lh; padding-inline: var(--space-lg); color: var(--color-muted); font-size: var(--text-sm); }
.search-results { display: grid; max-height: 48dvh; overflow-y: auto; padding: 0 var(--space-lg) var(--space-lg); }
.search-empty { padding: var(--space-lg) 0; color: var(--color-muted); }
.search-result { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--space-xs) var(--space-md); align-items: center; min-height: 60px; padding: var(--space-sm); border-block-start: var(--rule-hair) solid var(--color-rule); text-decoration: none; }
.search-result.is-active { background: var(--color-paper-2); }
.search-result__code { grid-row: 1 / span 2; font-size: var(--text-sm); font-variant-numeric: tabular-nums; }
.search-result__title { font-weight: 700; }
.search-result__meta { color: var(--color-muted); font-size: var(--text-sm); }
.search-result mark { background: var(--color-accent-soft); color: var(--color-ink); }
.search-hint { display: none; padding: var(--space-sm) var(--space-lg); border-block-start: var(--rule-hair) solid var(--color-rule); color: var(--color-muted); font-size: var(--text-xs); }
.search-hint kbd { font-family: var(--font-mono); }
[aria-disabled="true"] { opacity: 0.55; cursor: not-allowed; pointer-events: none; }
[data-state="loading"] { cursor: progress; }
[data-state="error"] { border-color: var(--color-error); }
[data-state="success"] { border-color: var(--color-success); }
@media (hover: hover) and (pointer: fine) {
  .search-pill:hover, .qr-download:hover, .dialog-close:hover { background: var(--color-paper-2); }
  .portal-brand:hover, .portal-footer a:hover { text-decoration-thickness: 2px; text-underline-offset: 2px; }
  .subject-card:hover { background: var(--subject-soft); transform: translateY(-1px); }
  .text-action:hover { transform: translateX(2px); }
}
.search-pill:active, .subject-card:active, .text-action:active, .qr-download:active, .dialog-close:active { transform: translateY(1px); }
.portal-brand:active, .portal-footer a:active { opacity: 0.7; }
.search-pill:disabled, .text-action:disabled, .dialog-close:disabled { opacity: 0.55; cursor: not-allowed; }
@media (min-width: 40rem) {
  .portal-shell { padding-inline: var(--space-lg); }
  .subject-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 var(--space-lg); }
  .portal-footer { flex-direction: row; flex-wrap: wrap; align-items: center; justify-content: space-between; }
  .search-hint { display: block; }
}
@media (min-width: 60rem) {
  .portal-hero { grid-template-columns: minmax(0, 7fr) minmax(16rem, 5fr); align-items: center; padding-block: var(--space-2xl); }
  .subject-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0; }
  .subject-card { grid-template-columns: minmax(0, 1fr); align-content: start; padding: var(--space-lg); border-inline-end: var(--rule-hair) solid var(--color-rule); }
  .subject-card:last-child { border-inline-end: 0; }
  .subject-card__count, .subject-card__action { grid-column: 1; }
  .install-section { grid-template-columns: minmax(0, 3fr) minmax(18rem, 2fr); align-items: stretch; padding: var(--space-2xl); }
}
@media (max-width: 24rem) {
  .search-pill kbd, .portal-brand br { display: none; }
  .search-pill { padding-inline: var(--space-sm); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}
@media print {
  .portal-nav, .portal-hero, .subject-section, .portal-footer, .search-dialog { display: none !important; }
  .portal-shell { width: 100%; padding: 0; }
  .install-section { display: grid; grid-template-columns: 1fr 1fr; background: var(--color-surface); color: var(--color-ink); }
  .install-copy > p, .install-steps p { color: var(--color-ink-2); }
}

/* Unified elementary + middle learning map */
.portal-brand__seal {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border: var(--rule-heavy) solid var(--color-accent);
  border-radius: 50%;
  color: var(--color-accent-deep);
  font-family: var(--font-display);
  font-size: var(--text-md);
  line-height: 1;
}
.portal-kicker {
  width: max-content;
  padding-block-end: var(--space-2xs);
  border-block-end: var(--rule-heavy) solid var(--color-pencil);
  color: var(--color-ink-2);
  font-weight: 700;
}
.portal-hero {
  grid-template-columns: minmax(0, 1fr);
  align-items: end;
  padding-block: var(--space-xl) var(--space-2xl);
}
.portal-hero h1 { max-width: 10ch; font-size: clamp(2.4rem, 8vw, 4.6rem); line-height: 1.08; }
.hero-note {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 0 var(--space-md);
  min-width: 0;
  padding: var(--space-md) var(--space-lg);
  border-block-start: var(--rule-heavy) solid var(--color-ink);
  border-block-end: var(--rule-hair) solid var(--color-rule);
  background: var(--color-surface);
}
.hero-note b, .hero-note span { padding-block: var(--space-sm); border-block-end: var(--rule-hair) solid var(--color-rule); }
.hero-note b { color: var(--color-accent-deep); font-family: var(--font-display); }
.hero-note span { color: var(--color-ink-2); }
.learning-map { padding-block: var(--space-xl) var(--space-2xl); }
.map-heading { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-xs); margin-block-end: var(--space-lg); }
.map-heading p { color: var(--color-muted); font-size: var(--text-sm); font-weight: 700; }
.map-heading h2 { max-width: 20ch; font-size: clamp(1.9rem, 5vw, 3rem); }
.school-path {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-block-start: var(--rule-heavy) solid var(--color-ink);
}
.school-path:last-child { border-block-end: var(--rule-heavy) solid var(--color-ink); }
.path-label {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: var(--space-xs) var(--space-md);
  padding: var(--space-md);
  background: var(--color-ink);
  color: var(--color-on-dark);
}
.school-path--elementary .path-label { background: var(--color-accent-deep); }
.path-label > span { grid-row: 1 / span 2; color: var(--color-on-dark-muted); font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.path-label strong { font-family: var(--font-display); font-size: var(--text-xl); line-height: 1; }
.path-label small { color: var(--color-on-dark-muted); }
.path-body { min-width: 0; padding: var(--space-lg) 0 var(--space-xl); }
.path-body > h3 { font-size: var(--text-lg); }
.path-body > p, .middle-heading p { max-width: 60ch; margin-block-start: var(--space-xs); color: var(--color-muted); }
.mini-subjects { display: grid; grid-template-columns: minmax(0, 1fr); margin-block-start: var(--space-lg); border-block-start: var(--rule-hair) solid var(--color-rule); }
.mini-subject {
  --subject: var(--color-math);
  --subject-soft: var(--color-math-soft);
  display: grid;
  grid-template-columns: 2.75rem minmax(0, 1fr);
  align-items: center;
  gap: var(--space-sm);
  min-height: 64px;
  padding: var(--space-sm);
  border-block-end: var(--rule-hair) solid var(--color-rule);
  text-decoration: none;
}
.mini-subject--japanese { --subject: var(--color-japanese); --subject-soft: var(--color-japanese-soft); }
.mini-subject--life { --subject: var(--color-life); --subject-soft: var(--color-life-soft); }
.mini-subject--science { --subject: var(--color-science); --subject-soft: var(--color-science-soft); }
.mini-subject--social { --subject: var(--color-social); --subject-soft: var(--color-social-soft); }
.mini-subject__mark { display: grid; place-items: center; width: 2.75rem; height: 2.75rem; border-radius: 50%; background: var(--subject-soft); color: var(--subject); font-family: var(--font-display); line-height: 1; }
.mini-subject > span:last-child { display: grid; min-width: 0; }
.mini-subject small { color: var(--color-muted); }
.path-primary {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  min-height: 48px;
  margin-block-start: var(--space-lg);
  padding-inline: var(--space-md);
  border: var(--rule-hair) solid var(--color-accent-deep);
  border-radius: var(--radius-sm);
  background: var(--color-accent-deep);
  color: var(--color-accent-ink);
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}
.middle-heading { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-md); margin-block-end: var(--space-md); }
.middle-heading h3 { font-size: var(--text-lg); }
.school-path--middle .subject-grid { margin-block-start: var(--space-md); }
.school-path--middle .subject-card { min-height: 7.5rem; }
@media (hover: hover) and (pointer: fine) {
  .mini-subject:hover { background: var(--subject-soft); }
  .path-primary:hover { background: var(--color-ink); }
}
.mini-subject:active, .path-primary:active { transform: translateY(1px); }
.mini-subject[aria-disabled="true"], .path-primary[aria-disabled="true"] { opacity: 0.55; cursor: not-allowed; }
@media (min-width: 40rem) {
  .portal-hero { grid-template-columns: minmax(0, 7fr) minmax(16rem, 4fr); }
  .mini-subjects { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 var(--space-lg); }
  .middle-heading { grid-template-columns: minmax(0, 1fr) auto; align-items: end; }
}
@media (min-width: 60rem) {
  .portal-hero { grid-template-columns: minmax(0, 7fr) minmax(18rem, 4fr); padding-block: var(--space-xl) var(--space-2xl); }
  .school-path { grid-template-columns: 12rem minmax(0, 1fr); }
  .path-label { align-content: start; grid-template-columns: minmax(0, 1fr); grid-template-rows: auto auto auto; gap: var(--space-xs); padding: var(--space-lg); }
  .path-label > span { grid-row: auto; }
  .path-body { padding: var(--space-xl) 0 var(--space-2xl) var(--space-xl); }
  .mini-subjects { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0; }
  .mini-subject { grid-template-columns: minmax(0, 1fr); align-content: start; min-height: 8.25rem; border-inline-end: var(--rule-hair) solid var(--color-rule); }
  .mini-subject:last-child { border-inline-end: 0; }
}
@media print {
  .learning-map { display: none !important; }
}