@view-transition { navigation: auto; }
::view-transition { pointer-events: none; }
::view-transition-old(root) { animation: page-out .16s ease both; }
::view-transition-new(root) { animation: page-in .3s cubic-bezier(.22,.61,.36,1) both; }
::view-transition-group(learning-entry) { animation-duration: .48s; animation-timing-function: cubic-bezier(.22,.61,.36,1); }
* { box-sizing: border-box; }
body.learning-site { margin: 0; --art-light: #edf4ff; --art-medium: #ccddff; --art-dark: #82a9ef; --art-line: #9bb9e9; }
html.theme-dark body.learning-site { --art-light: #202f49; --art-medium: #304870; --art-dark: #567dba; --art-line: #688bbe; }
button, input, select { font: inherit; }
button, a, select { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button, a { transition: color .18s, background .18s, border-color .18s, box-shadow .18s, transform .22s var(--gx-ease); }
button:active { transform: scale(.97); }
a { color: inherit; text-decoration: none; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, [tabindex]:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
[hidden] { display: none !important; }
.icon { width: 20px; height: 20px; flex-shrink: 0; fill: none; stroke: currentColor; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 10px; left: 12px; z-index: 200; padding: 12px 20px; background: var(--surface); color: var(--accent); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.learn-header { height: calc(68px + env(safe-area-inset-top,0px)); padding-top: env(safe-area-inset-top,0px); border-bottom: 1px solid var(--line); background: var(--bg); position: sticky; top: 0; z-index: 20; }
.learn-header-inner { max-width: 1440px; height: 68px; margin: auto; padding: 0 36px; display: flex; align-items: center; gap: 20px; }
.learn-brand { display: inline-flex; align-items: center; gap: 9px; font-size: 18px; letter-spacing: -.04em; }
.learn-brand .gx-brand-bird { width: 32px; height: 36px; }
.header-divider { height: 20px; width: 1px; background: var(--line); }
.learn-location { font-size: 14px; color: var(--accent); font-weight: 600; }
.header-actions { margin-left: auto; display: flex; gap: 18px; align-items: center; }
.back-home { display: flex; gap: 7px; align-items: center; color: var(--muted); font-size: 13px; min-height: 44px; }
.back-home:hover { color: var(--accent); }
.back-home .icon { width: 16px; }
.icon-button { width: 44px; height: 44px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--muted); padding: 0; }
.icon-button:hover { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.learning-shell { max-width: 1440px; margin: auto; display: grid; grid-template-columns: 236px minmax(0,1fr); }
.learn-sidebar { padding: 36px 22px 28px 30px; border-right: 1px solid var(--line); height: calc(100dvh - 68px - env(safe-area-inset-top,0px)); position: sticky; top: calc(68px + env(safe-area-inset-top,0px)); display: flex; flex-direction: column; overflow-y: auto; scrollbar-width: thin; }
.sidebar-heading { padding: 0 10px; display: grid; gap: 7px; font-size: 13px; font-weight: 650; }
.sidebar-caption { font-size: 9px; letter-spacing: .12em; color: var(--muted); font-weight: 500; }
.space-nav { margin: 25px 0 28px; display: grid; gap: 5px; }
.side-item { display: flex; align-items: center; gap: 11px; border: 0; width: 100%; padding: 0 12px; min-height: 44px; border-radius: 10px; background: transparent; text-align: left; color: var(--muted); font-size: 13px; position: relative; }
.side-item .icon { width: 18px; height: 18px; }
.side-item:hover { background: var(--shell); color: var(--ink); transform: translateX(2px); }
.side-item.is-active { color: var(--accent-ink); background: var(--accent-soft); font-weight: 600; }
.side-count { font-size: 11px; margin-left: auto; font-weight: 550; }
.sidebar-label { color: var(--muted); font-size: 11px; letter-spacing: .07em; padding: 0 12px; margin-bottom: 12px; }
.category-nav { display: grid; gap: 4px; }
.sidebar-bottom { margin-top: auto; padding: 28px 12px 0; color: var(--muted); }
.sidebar-bottom>.icon { color: var(--accent); width: 25px; height: 25px; }
.sidebar-bottom p { line-height: 1.85; margin: 10px 0; font-size: 12px; }
.sidebar-bottom strong { font-weight: 550; color: var(--ink); }
.sidebar-bottom a { display: flex; gap: 5px; align-items: center; min-height: 44px; font-size: 11px; }
.sidebar-bottom a:hover { color: var(--accent); }
.sidebar-bottom a .icon { width: 14px; }
.learn-main { min-width: 0; padding: 28px 40px 0; }
.intro { animation: section-in .5s var(--gx-ease) both; }
.search-section { animation-delay: .05s; }
.quick-categories { animation-delay: .09s; }
.resource-section { animation-delay: .12s; }
.learn-hero { display: flex; justify-content: space-between; align-items: center; min-height: 170px; margin-bottom: 20px; view-transition-name: learning-entry; }
.hero-copy { position: relative; z-index: 1; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--muted); font-size: 9px; font-weight: 600; letter-spacing: .16em; }
.eyebrow-line { width: 20px; height: 2px; background: var(--accent); }
.learn-hero h1 { margin: 16px 0 12px; font-size: clamp(27px,2.7vw,39px); letter-spacing: -.05em; font-weight: 700; line-height: 1.3; }
.learn-hero h1 span { display: block; color: var(--accent); }
.learn-hero p { margin: 0; font-size: 13px; line-height: 1.8; color: var(--muted); }
.mobile-break { display: none; }
.hero-meta { display: flex; align-items: center; gap: 12px; margin-top: 14px; font-size: 11px; color: var(--muted); }
.hero-meta strong { font-size: 12px; font-weight: 650; color: var(--ink); }
.meta-divider { height: 11px; width: 1px; background: var(--line-2); }
.hero-art { width: 290px; flex-shrink: 0; opacity: .9; }
.hero-art svg { width: 100%; display: block; }
.learn-search { display: flex; align-items: center; gap: 12px; border: 1px solid var(--line-2); background: var(--surface); border-radius: 13px; min-height: 55px; padding: 0 15px; transition: border-color .2s, box-shadow .2s; }
.learn-search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.learn-search>.icon { color: var(--accent); }
.learn-search input { border: 0; outline: 0; background: transparent; color: var(--ink); width: 100%; min-width: 0; font-size: 14px; min-height: 52px; }
.learn-search input:focus-visible { outline: none; }
.learn-search input::-webkit-search-cancel-button { display: none; }
.learn-search input::placeholder { color: var(--muted); opacity: .8; }
.learn-search kbd { border: 1px solid var(--line); border-radius: 5px; color: var(--muted); background: var(--shell); padding: 4px 6px; white-space: nowrap; font-family: inherit; font-size: 10px; }
.learn-search .icon-button { border: 0; width: 36px; height: 36px; flex-shrink: 0; }
.search-suggestions { display: flex; align-items: center; gap: 9px; min-height: 48px; color: var(--muted); font-size: 11px; }
.search-suggestions>span { margin-right: 1px; }
.search-suggestions button { border: 0; padding: 6px 10px; min-height: 36px; background: transparent; border-radius: 7px; color: var(--muted); font-size: 11px; }
.search-suggestions button:hover { color: var(--accent); background: var(--accent-soft); }
.quick-categories { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 13px; margin: 5px 0 25px; }
.quick-categories button { display: flex; align-items: center; gap: 12px; padding: 17px 15px; background: var(--shell); border: 1px solid transparent; border-radius: 12px; text-align: left; color: var(--ink); }
.quick-categories button>.icon { color: var(--accent); width: 22px; height: 22px; }
.quick-categories button>span { font-size: 13px; font-weight: 600; line-height: 1.5; }
.quick-categories small { display: block; font-size: 10px; font-weight: 400; color: var(--muted); margin-top: 3px; }
.quick-categories button .quick-arrow { width: 15px; height: 15px; margin-left: auto; color: var(--muted); }
.quick-categories button:hover { background: var(--accent-soft); border-color: var(--art-line); transform: translateY(-2px); }
.quick-categories button:hover .quick-arrow { transform: translateX(3px); }
.resource-section-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.resource-section-head h2 { margin: 0; font-size: 21px; letter-spacing: -.025em; font-weight: 650; scroll-margin-top: 95px; }
.resource-section-head p { font-size: 11px; color: var(--muted); margin: 8px 0 0; }
select { color: var(--ink); border: 0; background: var(--surface); cursor: pointer; }
.sort-control select { font-size: 11px; color: var(--muted); min-height: 44px; padding: 0 7px; }
.filter-bar { display: flex; flex-wrap: wrap; gap: 9px; margin: 20px 0 22px; }
.filter-bar label { display: inline-flex; align-items: center; gap: 5px; min-height: 40px; border: 1px solid var(--line); border-radius: 8px; padding: 0 9px; background: var(--surface); }
.filter-bar label>span { font-size: 10px; color: var(--muted); padding-right: 6px; border-right: 1px solid var(--line); }
.filter-bar select { font-size: 11px; max-width: 155px; padding: 0 3px; min-height: 38px; }
.reset-filters { display: flex; align-items: center; gap: 3px; border: 0; background: none; color: var(--muted); min-height: 40px; font-size: 11px; padding: 0 10px; }
.reset-filters:hover { color: var(--accent); }
.reset-filters .icon { width: 13px; height: 13px; }
.active-filters { display: flex; gap: 7px; flex-wrap: wrap; margin: -7px 0 20px; }
.active-filters button { display: inline-flex; align-items: center; gap: 5px; border: 0; border-radius: 6px; padding: 5px 9px; min-height: 34px; background: var(--accent-soft); color: var(--accent-ink); font-size: 11px; }
.active-filters .icon { width: 12px; height: 12px; }
.resource-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 15px; }
.resource-card { min-width: 0; border: 1px solid var(--line); border-radius: 13px; background: var(--surface); padding: 18px; display: flex; flex-direction: column; position: relative; isolation: isolate; min-height: 218px; cursor: pointer; transition: box-shadow .23s, border-color .23s, transform .23s var(--gx-ease); }
.resource-card:hover, .resource-card:focus-within { border-color: var(--art-line); box-shadow: 0 5px 20px #10244308; transform: translateY(-3px); }
.resource-exit { pointer-events: none !important; }
.card-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.card-icon { width: 37px; height: 37px; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center; background: var(--accent-soft); color: var(--accent); }
.card-icon .icon { width: 19px; height: 19px; }
.card-bookmark { position: relative; z-index: 2; border: 0; border-radius: 8px; background: transparent; color: var(--muted); width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center; margin: -4px -7px 0 0; }
.card-bookmark .icon { width: 17px; height: 17px; }
.card-bookmark:hover { color: var(--accent); background: var(--accent-soft); }
.card-bookmark[aria-pressed="true"] { color: var(--accent); }
.card-bookmark[aria-pressed="true"] .icon { fill: var(--accent-soft); }
.card-title { font-size: 15px; line-height: 1.55; font-weight: 650; letter-spacing: -.02em; margin: 14px 0 7px; }
.card-open { color: var(--ink); text-align: left; padding: 0; border: 0; background: transparent; font: inherit; }
.card-open::after { content: ''; position: absolute; inset: 0; z-index: 1; border-radius: 13px; cursor: pointer; }
/* Keep the full-card hit area anchored to the card while a collection button is pressed. */
body.learning-site .card-open:active { transform: none; }
.card-description { font-size: 12px; color: var(--muted); line-height: 1.75; margin: 0 0 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 42px; overflow-wrap: anywhere; }
.card-tags { display: flex; gap: 5px; flex-wrap: wrap; margin: auto 0 13px; }
.card-tag { display: inline-flex; align-items: center; font-size: 10px; font-weight: 500; line-height: 1.5; background: var(--shell); color: var(--muted); border-radius: 4px; padding: 3px 6px; }
.card-tag.type-tag { background: var(--accent-soft); color: var(--accent-ink); }
.card-bottom { border-top: 1px solid var(--line); padding-top: 11px; display: flex; gap: 5px; justify-content: space-between; align-items: center; font-size: 9px; color: var(--muted); }
.card-bottom>span { min-width: 0; max-width: calc(100% - 23px); display: grid; gap: 5px; }
.card-source,.card-access { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.card-source { font-size: 10px; }
.card-bottom .icon { width: 15px; height: 15px; color: var(--accent); }
.quick-categories button.is-active { background:var(--accent-soft); border-color:var(--art-line); }
.competition-notice { display:flex; align-items:flex-start; gap:13px; margin:0 0 22px; padding:18px 20px; border:1px solid var(--art-line); border-radius:12px; background:var(--accent-soft); animation:section-in .3s var(--gx-ease) both; }
.competition-notice>.icon { color:var(--accent); margin-top:2px; }
.competition-notice strong { font-size:14px; font-weight:600; }
.competition-notice p { margin:6px 0 0; font-size:12px; color:var(--muted); line-height:1.7; }
.competition-notice .competition-scope { font-size:11px; }
#competition-updated { display:inline-block; margin-left:9px; }
.competition-card .card-top { gap:7px; }
.competition-card .card-bookmark { margin-left:auto; width:44px; height:44px; }
.competition-status { padding:4px 7px; border-radius:5px; font-size:10px; line-height:1.5; color:var(--accent-ink); background:var(--accent-soft); }
.competition-status.status-soon { background:var(--accent); color:var(--surface); }
.competition-status.status-pending,.competition-status.status-ended,.competition-status.status-closed,.competition-status.status-stale { color:var(--muted); background:var(--shell); }
.competition-card .card-tags { margin:0 0 11px; }
.competition-audience { margin:0 0 13px; font-size:11px; color:var(--muted); line-height:1.7; }
.competition-schedule { margin:0 0 13px; padding:12px; background:var(--shell); border-radius:8px; display:grid; gap:10px; }
.competition-schedule dt { font-size:10px; line-height:1.6; color:var(--muted); }
.competition-schedule dd { margin:3px 0 0; font-size:12px; font-weight:600; line-height:1.6; color:var(--ink); }
.competition-deadline { border-top:1px solid var(--line); padding-top:9px; }
.competition-deadline dd { color:var(--accent-ink); }
.competition-region { display:flex; align-items:flex-start; gap:6px; margin:0 0 8px; color:var(--muted); font-size:11px; line-height:1.75; }
.competition-region .icon { width:14px; height:14px; margin-top:3px; }
.competition-details { position:relative; z-index:2; margin:0 0 15px; font-size:11px; color:var(--muted); }
.competition-details summary { cursor:pointer; display:flex; gap:6px; align-items:center; min-height:44px; list-style:none; color:var(--accent-ink); transition:color .18s,background .18s; border-radius:5px; }
.competition-details summary::-webkit-details-marker { display:none; }
.competition-details summary .icon { width:13px; height:13px; transition:transform .22s var(--gx-ease); }
.competition-details summary:hover { background:var(--accent-soft); }
.competition-details summary:focus-visible { outline:3px solid var(--accent); outline-offset:3px; }
.competition-details[open] summary .icon { transform:rotate(180deg); }
.competition-details p { margin:0 0 8px; line-height:1.8; }
.competition-details[open]>div { animation:section-in .2s var(--gx-ease) both; }
.competition-stale { margin:0 0 14px; color:var(--muted); font-size:11px; line-height:1.7; }
.competition-actions { display:grid; grid-template-columns:1fr 1fr; gap:8px; margin-top:auto; position:relative; z-index:2; }
.competition-link { min-height:44px; display:flex; align-items:center; justify-content:center; gap:5px; padding:8px 6px; border-radius:7px; border:1px solid var(--line); color:var(--accent-ink); font-size:11px; line-height:1.5; text-align:center; }
.competition-link .icon { width:13px; height:13px; }
.competition-link.is-primary { color:var(--accent-ink); border-color:var(--art-line); background:var(--accent-soft); }
.competition-link:hover { border-color:var(--accent); background:var(--accent-soft); transform:translateY(-1px); }
.competition-link:active { transform:scale(.97); }
.competition-source { margin-top:13px; padding-top:11px; border-top:1px solid var(--line); display:grid; gap:4px; color:var(--muted); font-size:10px; line-height:1.6; overflow-wrap:anywhere; }
@supports (interpolate-size:allow-keywords) {
  .competition-details { interpolate-size:allow-keywords; }
  .competition-details::details-content { block-size:0; opacity:0; overflow:clip; transition:block-size .22s var(--gx-ease),opacity .16s,content-visibility .22s allow-discrete; }
  .competition-details[open]::details-content { block-size:auto; opacity:1; }
}
.load-more { min-height: 45px; display: flex; align-items: center; justify-content: center; gap: 8px; margin: 25px auto 0; padding: 0 22px; border: 1px solid var(--line); border-radius: 9px; background: var(--surface); color: var(--muted); font-size: 12px; }
.load-more:hover { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }
.load-more .icon { width: 15px; }
.empty-state { padding: 58px 15px; text-align: center; border: 1px dashed var(--line-2); border-radius: 13px; }
.empty-state>.icon { width: 32px; height: 32px; color: var(--accent); }
.empty-state h3 { font-size: 17px; margin: 17px 0 8px; }
.empty-state p { font-size: 12px; color: var(--muted); }
.primary-button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 18px; border: 1px solid var(--primary); border-radius: 9px; background: var(--primary); color: #fff; font-size: 12px; }
html.theme-dark .primary-button { background: #2563eb; border-color: #2563eb; }
.primary-button:hover { background: #1d4ed8; }
.learn-footer { display: flex; justify-content: space-between; gap: 14px; border-top: 1px solid var(--line); padding: 23px 0 28px; margin-top: 42px; color: var(--muted); font-size: 10px; line-height: 1.8; }
.learn-footer p { margin: 0; }
.learn-footer a:hover { color: var(--accent); }
.collection-dialog { padding: 0; border: 1px solid var(--line); border-radius: 20px; width: min(780px,calc(100vw - 40px)); max-height: min(82dvh,900px); background: var(--surface); color: var(--ink); box-shadow: var(--shadow-lg); }
.collection-dialog::backdrop { background: #07122260; backdrop-filter: blur(4px); }
.collection-dialog[open] { animation: dialog-in .28s var(--gx-ease) both; }
.collection-dialog.is-closing { animation: dialog-out .16s ease both; }
.collection-dialog.is-closing::backdrop { animation: page-out .16s ease both; }
.collection-head { position: sticky; top: 0; background: var(--surface); z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 22px 26px; border-bottom: 1px solid var(--line); }
.collection-head h2 { font-size: 21px; margin: 9px 0 0; letter-spacing: -.03em; }
.collection-content { padding: 22px 26px 30px; }
.collection-filters { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 22px; }
.collection-filters label { display: grid; gap: 8px; font-size: 11px; color: var(--muted); }
.collection-filters select { width: 100%; padding: 10px; border: 1px solid var(--line); border-radius: 8px; font-size: 13px; min-height: 44px; }
.collection-hint { font-size: 12px; color: var(--muted); line-height: 1.8; margin: 0 0 20px; }
.file-list { display: grid; gap: 8px; }
.paper-row, .book-row { display: flex; align-items: center; gap: 14px; justify-content: space-between; border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; background: var(--surface); animation: section-in .22s var(--gx-ease) both; }
.paper-row-name { font-size: 12px; font-weight: 550; }
.paper-row-links { display: flex; gap: 5px; align-items: center; flex-shrink: 0; }
.file-link { display: inline-flex; align-items: center; justify-content: center; padding: 7px 10px; min-height: 36px; border: 1px solid var(--line); border-radius: 7px; color: var(--accent-ink); font-size: 11px; position: relative; }
.file-link:hover { border-color: var(--accent); background: var(--accent-soft); }
.file-link.answer { color: var(--muted); }
.paper-row .file-link { min-height: 44px; }
.file-link:disabled { color: var(--muted); background: var(--shell); cursor: not-allowed; opacity: .65; }
.file-link:disabled:hover { border-color: var(--line); transform: none; }
.paper-done { background: var(--surface); min-height: 44px; min-width: 58px; gap: 5px; }
.paper-done .icon { width: 14px; height: 14px; }
.paper-done[aria-pressed="true"] { background: var(--accent-soft); border-color: var(--accent); color: var(--accent-ink); }
.paper-done:hover { transform: translateY(-1px); }
.paper-done:active { transform: scale(.96); }
.done-card .card-open::after { content: none; }
.done-card .paper-row-links { flex-wrap: wrap; margin-top: auto; }
.done-card .file-link { min-height: 44px; }
.missing-answer { font-size: 10px; color: var(--muted); padding: 0 5px; }
.book-row { align-items: flex-start; }
.book-row h3 { margin: 0 0 5px; font-size: 13px; font-weight: 550; line-height: 1.6; }
.book-row p { margin: 0; font-size: 10px; line-height: 1.8; color: var(--muted); }
.book-row>.file-link { flex-shrink: 0; }
.collection-note { margin: 22px 0 0; font-size: 11px; color: var(--muted); line-height: 1.8; }
.learn-toast { position: fixed; bottom: max(25px,env(safe-area-inset-bottom)); left: 50%; padding: 13px 20px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); box-shadow: var(--shadow-lg); color: var(--ink); font-size: 12px; transform: translate(-50%,12px); opacity: 0; pointer-events: none; transition: opacity .18s, transform .18s; z-index: 100; max-width: calc(100vw - 30px); text-align: center; }
.learn-toast.is-visible { opacity: 1; transform: translate(-50%,0); }
@keyframes section-in { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
@keyframes page-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes page-out { to { opacity: 0; } }
@keyframes dialog-in { from { opacity: 0; transform: translateY(15px) scale(.98); } }
@keyframes dialog-out { to { opacity: 0; transform: translateY(8px) scale(.99); } }
@media(min-width:1500px) { .learn-main { padding-left: 52px; padding-right: 52px; } }
@media(max-width:1150px) { .learning-shell { grid-template-columns: 210px minmax(0,1fr); } .learn-sidebar { padding-left: 18px; padding-right: 17px; } .learn-main { padding: 28px 27px 0; } .resource-grid { grid-template-columns: repeat(2,minmax(0,1fr)); } .hero-art { width: 235px; } .quick-categories { gap: 8px; } .quick-categories button { padding: 14px 10px; gap: 8px; } .quick-arrow { display: none; } }
@media(max-width:820px) { .learn-header-inner { padding: 0 22px; gap: 14px; } .learning-shell { display: block; } .learn-sidebar { position: static; border: 0; height: auto; padding: 18px 22px 0; overflow: visible; } .sidebar-heading,.sidebar-label,.category-nav,.sidebar-bottom { display: none; } .space-nav { margin: 0; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 8px; } .side-item { justify-content: center; border: 1px solid var(--line); padding: 0 8px; gap: 6px; min-height: 44px; font-size: 12px; } .side-count { margin-left: 2px; font-size: 10px; } .learn-main { padding: 25px 22px 0; } .learn-hero { min-height: 175px; margin-bottom: 22px; } .hero-art { width: 250px; } .learn-hero h1 { font-size: 33px; } .learn-footer { flex-direction: column; gap: 4px; } }
@media(max-width:540px) { .space-nav { grid-template-columns: repeat(2,minmax(0,1fr)); } }
@media(max-width:540px) { .learn-header,.learn-header-inner { height: calc(60px + env(safe-area-inset-top,0px)); } .learn-header-inner { height: 60px; padding: 0 18px; gap: 12px; } .header-actions { gap: 9px; } .back-home span { display: none; } .back-home { width: 35px; justify-content: center; } .back-home .icon { width: 18px; height: 18px; } .learn-brand { font-size: 16px; } .learn-brand .gx-brand-bird { width: 27px; height: 30px; } .learn-location { font-size: 12px; } .header-actions .icon-button { width: 38px; height: 38px; border-radius: 10px; } .learn-sidebar { padding: 16px 18px 0; } .space-nav { gap: 6px; } .side-item { font-size: 11px; } .side-item .icon { width: 15px; height: 15px; } .learn-main { padding: 26px 18px 0; } .learn-hero { min-height: 155px; position: relative; overflow: hidden; align-items: flex-start; } .learn-hero h1 { font-size: 30px; } .learn-hero p { font-size: 11px; } .mobile-break { display: block; } .hero-art { width: 168px; position: absolute; right: -15px; bottom: 22px; opacity: .72; } .hero-copy { max-width: 100%; } .hero-meta { font-size: 10px; margin-top: 15px; gap: 8px; } .eyebrow { font-size: 8px; } .learn-search { min-height: 52px; gap: 9px; padding: 0 12px; } .learn-search input { font-size: 12px; min-height: 49px; } .learn-search kbd { display: none; } .search-suggestions { gap: 4px; font-size: 10px; } .search-suggestions button { font-size: 10px; padding: 5px 8px; } .quick-categories { gap: 7px; margin: 6px 0 28px; } .quick-categories button { padding: 13px 8px; display: grid; gap: 9px; } .quick-categories button>span { font-size: 11px; } .quick-categories small { font-size: 9px; } .quick-categories button>.icon { width: 19px; height: 19px; } .quick-categories .quick-arrow { display: none; } .resource-section-head h2 { font-size: 19px; } .sort-control select { font-size: 10px; } .filter-bar { margin: 15px 0 19px; gap: 7px; } .filter-bar label { padding: 0 6px; gap: 3px; } .filter-bar label>span { display: none; } .filter-bar select { font-size: 11px; max-width: 106px; } .resource-grid { grid-template-columns: minmax(0,1fr); gap: 12px; } .resource-card { padding: 18px; min-height: 196px; } .card-title { font-size: 15px; margin-top: 11px; } .card-description { font-size: 12px; margin-bottom: 13px; } .card-tag { font-size: 10px; } .card-bottom { font-size: 10px; } .learn-footer { font-size: 10px; } .collection-dialog { width: calc(100vw - 22px); max-height: 88dvh; border-radius: 15px; } .collection-head { padding: 18px; } .collection-head h2 { font-size: 18px; } .collection-content { padding: 18px; } .paper-row { flex-wrap: wrap; padding: 12px; gap: 10px; } .paper-row-links { margin-left: auto; } .book-row { padding: 12px; gap: 10px; } .book-row h3 { font-size: 12px; } .collection-filters { gap: 9px; } }
@media(prefers-reduced-motion:reduce) { *,*::before,*::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; } ::view-transition-group(*),::view-transition-old(*),::view-transition-new(*) { animation: none !important; } .resource-card:hover { transform: none; } }
@media(max-width:540px) {
  .learn-main { padding-top:20px; }
  .learn-hero { min-height:140px; margin-bottom:18px; }
  .learn-hero h1 { font-size:28px; line-height:1.25; margin:10px 0 8px; }
  .learn-hero p { line-height:1.65; }
  .hero-meta { margin-top:9px; }
  .hero-art { bottom:17px; }
  .quick-categories { margin-bottom:21px; }
  .quick-categories button { padding:11px 8px; gap:7px; }
}
@media(max-width:1150px) { .quick-categories { grid-template-columns:repeat(2,minmax(0,1fr)); } }
@media(max-width:540px) { .competition-notice { padding:15px; gap:10px; } .competition-notice strong { font-size:13px; } .competition-card .card-description { -webkit-line-clamp:3; } #competition-updated { display:block; margin-left:0; margin-top:4px; } .competition-link { font-size:12px; } .competition-source,.competition-audience,.competition-region,.competition-details { font-size:11px; } }

/* Keep long paper lists interactive; animate the container, not every row. */
.collection-dialog[open]{animation:dialog-in .2s cubic-bezier(.2,.8,.2,1)}.collection-dialog.is-closing{animation:dialog-out .12s ease-in}.paper-row,.book-row{animation:none;content-visibility:auto;contain-intrinsic-size:auto 62px}.file-list{animation:section-in .16s ease-out}.paper-row-links .file-link,.paper-row-links button{min-height:44px}.resource-card{contain:layout style}.resource-card:focus-within{outline-offset:3px}.collection-content{overscroll-behavior:contain}.intro{animation-duration:.28s}.search-section,.quick-categories,.resource-section{animation-delay:0s}.collection-dialog [role=status]{animation:none}@media(prefers-reduced-motion:reduce){.file-list,.collection-dialog[open],.intro{animation:none}.resource-card,.side-item,.quick-categories button{transition:background .1s,color .1s}}