/* Home chapter and navigation. Original learning actions remain unchanged. */
[hidden] { display: none !important; }
.app-container:has(#view-home.active) {
  padding-inline: max(var(--space-sm), env(safe-area-inset-left)) max(var(--space-sm), env(safe-area-inset-right));
  padding-bottom: calc(max(108px, 6rem) + env(safe-area-inset-bottom));
}
#view-home { max-width: 1120px; margin-inline: auto; }
#view-home .app-header { padding: var(--space-md) 0; gap: var(--space-sm); border-radius: 0; border: 0; background: transparent; }
#view-home .header-actions { flex-wrap: wrap; gap: var(--space-sm); }
#view-home .header-actions button { min-height: 44px; }
.primary-nav { position: fixed; z-index: 40; inset: auto 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)) minmax(0, 1.5fr); gap: 4px; width: 100%; margin: 0; padding: 8px max(8px, env(safe-area-inset-right)) max(8px, env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left)); border-top: 1px solid var(--color-border); background: var(--color-surface); }
.primary-nav button { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; overflow-wrap: anywhere; min-width: 0; min-height: 60px; padding: 6px 2px; border: 1px solid transparent; border-radius: 12px; background: transparent; color: var(--color-text); font: 750 .8125rem/1.3 var(--font-family-sans); cursor: pointer; transition: none; }
.primary-nav .nav-icon { width: 26px; height: 26px; flex: none; }
.primary-nav button:hover, .primary-nav button[aria-current="page"] { background: var(--color-surface-alt); color: var(--color-text); border-color: var(--color-border); }
.primary-nav button[aria-current="page"] { border-bottom: 3px solid var(--color-text); }
.home-content { display: block; padding: 0; }
.home-section { max-width: 100%; width: 100%; margin: 0 auto; }
.home-section .hero-card { margin: 0; display: grid; grid-template-columns: minmax(0, 1fr); min-height: 0; padding: 0; border: 1px solid var(--color-border); border-radius: 28px 28px 8px 8px; background: var(--color-surface); color: var(--color-text); text-align: left; box-shadow: 0 6px 0 var(--color-surface-alt), 0 7px 0 var(--color-border); }
.home-section .hero-copy { min-width: 0; padding: 24px 20px; }
.home-section .eyebrow { color: var(--color-text-secondary); margin: 0 0 var(--space-sm); }
.home-section .hero-title { color: var(--color-text); font-size: clamp(2rem, 5vw, 3.5rem); line-height: 1.08; letter-spacing: -.04em; margin: 0 0 12px; overflow-wrap: anywhere; max-width: 13ch; }
.home-section .hero-subtitle { color: var(--color-text-secondary); font: inherit; margin: 0 0 var(--space-md); max-width: 48ch; }
.home-section .hero-card[data-learning-state="separate"] .hero-subtitle { display: none; }
.home-section .forest-scene { display: block; order: -1; height: 160px; min-height: 160px; margin: 0; border-radius: 0; }
.home-learning-entry { display: grid; min-width: 0; gap: var(--space-sm); padding: 0; border: 0; border-radius: 0; background: transparent; }
.home-section .active-round-card { margin: 0; padding: 0; border: 0; background: transparent; color: var(--color-text); border-radius: 0; }
.home-section .active-round-card h3 { margin: 0 0 var(--space-sm); font-size: var(--font-size-lg); line-height: var(--line-height-tight); }
.home-section .active-round-card p { margin: 0 0 var(--space-xs); font: inherit; }
#active-round-mode { font-weight: 700; }
.home-section #active-round-storage { color: var(--color-text-secondary); font-size: var(--font-size-sm); }
#view-home #continue-learning, #view-home .handoff-round-card button { min-width: 0; min-height: 56px; width: 100%; max-width: 100%; margin: var(--space-xs) 0 0; padding: 12px 20px; border: 1px solid var(--color-primary); border-radius: var(--radius-md); background: var(--color-primary); color: #ffffff; box-shadow: 0 3px 0 var(--color-primary-dark); font: inherit; font-weight: 750; text-align: center; cursor: pointer; transition: none; overflow-wrap: anywhere; white-space: normal; }
#view-home #continue-learning:hover, #view-home .handoff-round-card button:hover:not(:disabled) { background: var(--color-primary-dark); border-color: var(--color-primary-dark); }
#view-home #start-new-round { min-height: 44px; width: 100%; padding: var(--space-sm); background: var(--color-surface); color: var(--color-text-secondary); border: 1px solid var(--color-border); box-shadow: none; font: inherit; font-size: var(--font-size-sm); transition: none; }
#view-home #start-new-round:hover { background: var(--color-surface-alt); color: var(--color-text); }
.home-section .hero-copy > .buddy-change { margin-top: var(--space-md); min-height: 44px; background: transparent; border: 1px solid var(--color-border); color: var(--color-text); font: inherit; font-size: var(--font-size-sm); }
.home-section .hero-note { color: var(--color-text-secondary); font: inherit; font-size: var(--font-size-sm); line-height: var(--line-height-normal); margin: var(--space-md) 0 0; max-width: 62ch; }
#view-home .reader-handoff { min-width: 0; padding: var(--space-md); margin: var(--space-md) 0 0; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); color: var(--color-text); box-shadow: none; }
#view-home .hero-copy > .reader-handoff { margin: 0; }
#view-home .reader-handoff h2 { font-size: var(--font-size-lg); color: var(--color-text); line-height: var(--line-height-tight); margin: 0 0 var(--space-sm); }
#view-home .reader-handoff p { font: inherit; margin: 0 0 var(--space-sm); overflow-wrap: anywhere; }
#view-home .reader-handoff > button, #view-home .handoff-actions > button { min-height: 44px; max-width: 100%; padding: var(--space-sm) var(--space-md); font: inherit; font-size: var(--font-size-sm); border-radius: var(--radius-md); box-shadow: none; transition: none; overflow-wrap: anywhere; }
#view-home .reader-handoff > button { width: auto; margin: var(--space-md) 0 0; }
.handoff-actions { display: grid; gap: var(--space-md); min-width: 0; }
#view-home .handoff-actions label { font-weight: 700; }
#view-home .handoff-actions select { min-width: 0; width: 100%; min-height: 44px; font: inherit; color: var(--color-text); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: var(--space-sm); }
.handoff-round-card { min-width: 0; padding: var(--space-md); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface-alt); }
#view-home .handoff-round-card h3 { margin: 0 0 var(--space-sm); font-size: var(--font-size-lg); line-height: var(--line-height-tight); }
#view-home .handoff-round-card p { color: var(--color-text-secondary); }
/* Original continuation labels must reflow inside their own nested cards. */
#view-home .handoff-round-card button { overflow-wrap: anywhere; white-space: normal; }
#view-home .handoff-round-card button:disabled { opacity: .65; cursor: not-allowed; }
.home-section .training-options { margin: 0; gap: var(--space-md); container-type: inline-size; }
.home-section .training-options > h2 { margin: var(--space-sm) 0; }
.home-section .training-card[data-action] { min-height: 150px; background: var(--color-surface); color: var(--color-text); border: 1px solid var(--color-border); border-radius: 24px 24px 8px 8px; box-shadow: 0 4px 0 var(--color-surface-alt); padding: 24px 20px; transition: none; }
.home-section .training-card[data-action]:hover { border-color: var(--color-text); transform: none; }
.home-section .training-card[data-action] p { color: var(--color-text-secondary); }
#view-home .app-footer { margin-top: var(--space-xl); padding: var(--space-lg) var(--space-sm); background: transparent; }
.section-details { margin: var(--space-md) 0; padding: var(--space-md); border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); }
.section-details summary { min-height: 44px; display: list-item; align-content: center; font-weight: 700; cursor: pointer; }
.section-details .forest-panel { margin-bottom: 0; }
#view-home button:focus-visible, #view-home select:focus-visible, #view-home summary:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
.round-state-message:not(:empty) { padding: var(--space-md); margin-top: var(--space-sm); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); color: var(--color-text); }
.round-state-message[data-state="error"] { border-color: var(--color-error); color: var(--color-primary-dark); }
@media (min-width: 700px) {
 #view-home.active { display: grid; grid-template-columns: 148px minmax(0, 1fr); grid-template-rows: auto 1fr auto; column-gap: 24px; align-items: start; }
 #view-home > .app-header { grid-column: 1 / -1; margin-bottom: 24px; }
 #view-home > .home-content, #view-home > .app-footer { grid-column: 2; width: 100%; }
 .primary-nav { position: sticky; top: 24px; inset-inline: auto; grid-column: 1; grid-row: 2; grid-template-columns: minmax(0, 1fr); padding: 0; border: 0; background: transparent; gap: 12px; }
 .primary-nav button { flex-direction: row; justify-content: flex-start; gap: 10px; padding: 12px; font-size: .875rem; }
 .primary-nav button[aria-current="page"] { border-bottom-width: 1px; border-left: 4px solid var(--color-text); }
 .home-section .hero-card { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0; }
 .home-section .hero-copy { padding: 32px; }
 .home-section .forest-scene { order: 0; min-height: 440px; height: auto; margin: 0; align-self: stretch; border-radius: 0; }
 .home-section .training-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
 .home-section .training-options > h2 { grid-column: 1 / -1; }
}

@media (prefers-reduced-motion: reduce) { #view-home, #view-home button { animation: none; transition: none; } }
@media (forced-colors: active) {
 .primary-nav button[aria-current="page"] { border: 3px solid Highlight; color: ButtonText; background: ButtonFace; }
 #view-home #continue-learning, #view-home .handoff-round-card button { border: 2px solid ButtonText; color: ButtonText; background: ButtonFace; }
 #view-home button:focus-visible, #view-home select:focus-visible, #view-home summary:focus-visible { outline-color: Highlight; }
}

/* Progress values keep their provenance next to the numbers. */
#section-progress { display: flex; flex-direction: column; overflow-wrap: anywhere; }
.progress-chapter { display: grid; grid-template-columns: 64px minmax(0, 1fr); align-items: center; gap: 16px; padding: 24px 20px; background: #204d40; color: #fff5dc; border-radius: 24px 24px 8px 8px; }
.progress-chapter img { width: 64px; height: 64px; background: #fff5dc; border-radius: 50%; padding: 6px; }
.progress-chapter h2 { font-size: 1.75rem; margin: 4px 0 8px; }
.progress-chapter p { margin: 0; }
#section-progress .progress-chapter .eyebrow { color: #e2ebdf; }
#section-progress > .learning-scope { order: 1; }
#section-progress > .progress-card { order: 2; }
#section-progress > .progress-navigation { order: 3; }
#section-progress > :is(.forest-panel, .section-details, .quick-links) { order: 4; }
#section-progress .learning-scope { padding: var(--space-md); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); color: var(--color-text-secondary); line-height: var(--line-height-normal); }
#section-progress .progress-card { border: 1px solid var(--color-border); border-inline-start: 5px solid var(--color-text); box-shadow: 0 4px 0 var(--color-surface-alt); padding: 24px 20px; border-radius: 8px 24px 24px 8px; }
#section-progress .progress-card h2 { font-size: 1.2rem; color: var(--color-text); }
#section-progress .progress-stats { grid-template-columns: repeat(auto-fit, minmax(min(100%, 6rem), 1fr)); }
#section-progress .stat-label, #section-progress .progress-text { font-size: .9rem; }
#section-progress .stat-value { font-size: 2rem; color: var(--color-primary); }
@media (forced-colors: active) {
 .progress-chapter, #section-progress .progress-chapter .eyebrow { color: CanvasText; background: Canvas; }
 .progress-chapter { border: 2px solid CanvasText; }
}
#view-leaderboard { min-width: 0; overflow-wrap: anywhere; }
#view-leaderboard .app-header { position: static; flex-wrap: wrap; gap: var(--space-sm); }
#view-leaderboard .app-header h1 { flex: 1 1 12rem; min-width: 0; font-size: 1.5rem; margin: 0; }
#view-leaderboard .header-spacer { display: none; }
#view-leaderboard .leaderboard-content { width: 100%; max-width: 48rem; padding-block: var(--space-md); }
#view-leaderboard .ranking-intro { display: block; padding: var(--space-md); margin: 0 0 var(--space-md); background: var(--color-surface); color: var(--color-text); border: 1px solid var(--color-border); border-radius: var(--radius-lg); }
#view-leaderboard .ranking-intro img, #view-leaderboard .ranking-intro .eyebrow { display: none; }
#view-leaderboard .ranking-intro h2 { font-size: 1.2rem; }
#view-leaderboard .leaderboard-tabs { flex-wrap: wrap; gap: var(--space-sm); }
#view-leaderboard button { min-width: 44px; min-height: 44px; max-width: 100%; font: inherit; overflow-wrap: anywhere; transition: none; }
#view-leaderboard .leaderboard-tab { padding: var(--space-sm); }
#view-leaderboard .leaderboard-row { grid-template-columns: auto minmax(0, 1fr); gap: var(--space-sm); padding: var(--space-md); }
#view-leaderboard .leaderboard-rank { min-width: 0; }
#view-leaderboard .leaderboard-entry-value { grid-column: 2; white-space: normal; text-align: left; }
#view-leaderboard .personal-summary { padding: var(--space-md); box-shadow: none; border: 1px solid var(--color-border); }
#view-leaderboard .summary-grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 8rem), 1fr)); }
#view-leaderboard .summary-label { font-size: .9rem; }
#view-leaderboard button:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }

/* Catalog cards must reflow within expanded details at enlarged text. */
#section-practice { overflow-wrap: anywhere; }
#section-practice .training-card[data-action] h3 { color: var(--color-text); }
#section-practice .theme-grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 9rem), 1fr)); }
#section-practice .theme-card { min-width: 0; max-width: 100%; overflow-wrap: anywhere; transition: none; }
#section-practice .theme-card:hover { transform: none; }
@media (max-width: 600px) {
  #section-practice .training-card[data-action] { grid-template-columns: 52px minmax(0, 1fr); min-height: 140px; gap: 8px 16px; }
  #section-practice .training-card h3, #section-practice .training-card p { grid-column: 2; grid-row: auto; }
  #section-practice .training-card .card-icon { width: 52px; height: 52px; grid-column: 1; grid-row: 1 / 3; }
  #section-practice .training-card .card-arrow { display: none; }
}
#section-games { overflow-wrap: anywhere; }
/* At enlarged root text the artwork moves above the copy rather than
   taking away its reading width. Container rem units follow that text size. */
@container (max-width: 12rem) {
 #section-practice .training-card[data-action] { grid-template-columns: minmax(0, 1fr); }
 #section-practice .training-card .card-icon, #section-practice .training-card h3, #section-practice .training-card p { grid-column: 1; grid-row: auto; }
}
#section-games .memory-launch { width: 100%; min-width: 0; grid-template-columns: minmax(0, 1fr); background: var(--color-surface); color: var(--color-text); border: 1px solid var(--color-border); box-shadow: none; transition: none; }
#section-games .memory-launch > * { grid-column: 1; grid-row: auto; min-width: 0; }
#section-games .memory-launch .card-arrow { display: none; }
#section-games .memory-launch h3 { color: var(--color-text); }
#section-games .memory-launch p { color: var(--color-text-secondary); }
#section-games .memory-launch:hover { transform: none; }
#section-games .memory-launch:disabled { background: var(--color-surface-alt); border-style: dashed; cursor: not-allowed; }
#games-availability { line-height: var(--line-height-normal); margin-block: var(--space-md); }
#games-practice { min-height: 44px; max-width: 100%; white-space: normal; overflow-wrap: anywhere; margin-bottom: var(--space-md); transition: none; }

/* Progress shortcuts stay usable without widening the page. */
.progress-navigation { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 10rem), 1fr)); gap: var(--space-sm); margin-block: var(--space-md); }
.progress-navigation button { min-width: 0; min-height: 44px; padding: var(--space-sm); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); color: var(--color-text); font: inherit; font-weight: 700; white-space: normal; overflow-wrap: anywhere; cursor: pointer; transition: none; }

/* Existing accessible round-length chooser and explicit replacement dialog. */
.active-round-actions, .new-round-confirm-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1rem; }
.active-round-actions button, .new-round-confirm-actions button { min-height: 48px; font: inherit; cursor: pointer; }
.round-size-group { border: 0; margin: 1.25rem 0; min-width: 0; }
.round-size-group legend { font-size: 1.2rem; font-weight: 750; margin-bottom: .65rem; }
.round-size-options { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: .75rem; }
.round-size-option { position: relative; display: flex; align-items: center; min-height: 64px; padding: .75rem 1rem; gap: .65rem; border: 2px solid #a3b7aa; border-radius: 15px; background: #fff; color: #173f35; font-weight: 700; cursor: pointer; }
.round-size-option:hover { border-color: #244d40; background: #f0f8f2; }
.round-size-option:has(input:checked) { border-color: #244d40; background: #dceee1; box-shadow: inset 0 0 0 1px #244d40; }
.round-size-option:has(input:focus-visible) { outline: 3px solid #8b2c0f; outline-offset: 3px; }
.round-size-option:has(input:disabled) { opacity: .55; cursor: not-allowed; }
.round-size-option input { appearance: auto; width: 1.3rem; height: 1.3rem; flex: none; accent-color: #244d40; }
.new-round-confirm { width: min(34rem, calc(100% - 32px)); max-width: calc(100% - 32px); max-height: 90vh; overflow: auto; overflow-wrap: anywhere; padding: clamp(14px, 3vw, 24px); border: 2px solid #244d40; border-radius: 18px; background: #fffaf0; color: #173f35; box-shadow: 0 15px 45px #122a2380; }
.new-round-confirm-actions button { min-width: 0; max-width: 100%; white-space: normal; overflow-wrap: anywhere; }
.new-round-confirm::backdrop { background: #122a23a8; }
.new-round-confirm h2 { margin-bottom: .75rem; }
.new-round-confirm-actions { justify-content: flex-end; }
@media (max-width: 620px) { .round-size-options { grid-template-columns: 1fr; } .active-round-actions button, .new-round-confirm-actions button { width: 100%; } }