/* NEXUS-07 v25 // Theme Workbench — editor-inspired layouts + standard project themes */
:root{
  color-scheme:dark;
  --bg:#1a1b26;--bg2:#16161e;--surface:#24283b;--surface2:#1f2335;--surface3:#292e42;
  --text:#c0caf5;--ink:#f1f5ff;--soft:#a9b1d6;--muted:#565f89;
  --line:#343b58;--line2:#414868;--accent:#7aa2f7;--accent2:#9ece6a;--warn:#e0af68;--danger:#f7768e;--ok:#9ece6a;
  --radius:4px;--radius-sm:3px;--shadow:none;--max:1260px;
  --font:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
}
html[data-user-theme="tokyo-night"] body{--bg:#1a1b26;--bg2:#16161e;--surface:#24283b;--surface2:#1f2335;--surface3:#292e42;--text:#c0caf5;--ink:#f1f5ff;--soft:#a9b1d6;--muted:#565f89;--line:#343b58;--line2:#414868;--accent:#7aa2f7;--accent2:#9ece6a;--warn:#e0af68;--danger:#f7768e;--ok:#9ece6a;color-scheme:dark}
html[data-user-theme="catppuccin"] body{--bg:#1e1e2e;--bg2:#181825;--surface:#313244;--surface2:#24273a;--surface3:#45475a;--text:#cdd6f4;--ink:#f5e0dc;--soft:#bac2de;--muted:#7f849c;--line:#45475a;--line2:#585b70;--accent:#89b4fa;--accent2:#a6e3a1;--warn:#f9e2af;--danger:#f38ba8;--ok:#a6e3a1;color-scheme:dark}
html[data-user-theme="nord"] body{--bg:#2e3440;--bg2:#242933;--surface:#3b4252;--surface2:#343b49;--surface3:#434c5e;--text:#d8dee9;--ink:#eceff4;--soft:#c8d0dc;--muted:#7f8b9b;--line:#4c566a;--line2:#607088;--accent:#88c0d0;--accent2:#a3be8c;--warn:#ebcb8b;--danger:#bf616a;--ok:#a3be8c;color-scheme:dark}
html[data-user-theme="gruvbox"] body{--bg:#282828;--bg2:#1d2021;--surface:#3c3836;--surface2:#32302f;--surface3:#504945;--text:#ebdbb2;--ink:#fbf1c7;--soft:#d5c4a1;--muted:#928374;--line:#504945;--line2:#665c54;--accent:#83a598;--accent2:#b8bb26;--warn:#fabd2f;--danger:#fb4934;--ok:#b8bb26;color-scheme:dark}
html[data-user-theme="dracula"] body{--bg:#282a36;--bg2:#21222c;--surface:#343746;--surface2:#2b2d3a;--surface3:#44475a;--text:#f8f8f2;--ink:#ffffff;--soft:#d6d6ce;--muted:#8b8fa8;--line:#44475a;--line2:#5d627b;--accent:#bd93f9;--accent2:#50fa7b;--warn:#f1fa8c;--danger:#ff5555;--ok:#50fa7b;color-scheme:dark}
html[data-user-theme="github-light"] body{--bg:#f6f8fa;--bg2:#ffffff;--surface:#ffffff;--surface2:#f6f8fa;--surface3:#eef2f6;--text:#24292f;--ink:#0b1220;--soft:#57606a;--muted:#6e7781;--line:#d0d7de;--line2:#afb8c1;--accent:#0969da;--accent2:#1a7f37;--warn:#9a6700;--danger:#cf222e;--ok:#1a7f37;color-scheme:light}
*{box-sizing:border-box}html{background:var(--bg);scroll-behavior:smooth}body{margin:0;min-height:100vh;color:var(--text);font-family:var(--font);background:var(--bg);padding-bottom:env(safe-area-inset-bottom)}body:before,body:after,.ambient{display:none!important}a{color:inherit;text-decoration:none}button,input,select{font:inherit}.theme-portal,.theme-intel,.theme-briefing,.theme-log,.theme-hockey,.theme-climbing{background:var(--bg)}:where(a,button,input,select,summary,[tabindex]):focus-visible{outline:2px solid var(--accent2);outline-offset:3px;box-shadow:0 0 0 5px color-mix(in srgb,var(--accent2) 18%,transparent)}.skip-link{position:fixed;left:.75rem;top:.75rem;z-index:1000;transform:translateY(-140%);border:1px solid var(--accent);border-radius:4px;background:var(--bg2);color:var(--ink);padding:.62rem .78rem;font:800 .74rem/1 var(--mono);text-transform:uppercase;letter-spacing:.06em;box-shadow:0 10px 30px color-mix(in srgb,#000 32%,transparent);transition:transform .14s ease}.skip-link:focus,.skip-link:focus-visible{transform:translateY(0);outline:2px solid var(--accent2);outline-offset:2px}
.topbar{position:sticky;top:0;z-index:50;display:grid;grid-template-columns:auto 1fr;align-items:center;gap:1rem;padding:0 .9rem;height:56px;background:var(--bg2);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:.65rem}.sigil{display:grid;place-items:center;width:32px;height:32px;border-radius:4px;background:var(--surface);border:1px solid var(--line);color:var(--accent);font:900 .82rem/1 var(--mono);letter-spacing:-.04em}.brand strong{display:block;font-size:.84rem;letter-spacing:.04em;text-transform:uppercase;color:var(--ink)}.brand small{display:block;margin-top:.05rem;color:var(--muted);font:700 .64rem/1 var(--mono);text-transform:uppercase}.top-actions{display:flex;justify-content:flex-end;align-items:center;gap:.35rem;flex-wrap:wrap}.ghost,.article-actions button,.article-actions a,.add-form button,.mobile-nav a,.mobile-nav button,.chip{border:1px solid var(--line);border-radius:4px;background:var(--surface2);color:var(--text);padding:.5rem .65rem;font-weight:700;font-size:.76rem;cursor:pointer;transition:background .12s,border-color .12s,color .12s}.ghost:hover,.article-actions button:hover,.add-form button:hover,.mobile-nav a:hover,.mobile-nav button:hover,.chip:hover{border-color:var(--line2);background:var(--surface3)}.nav-link.is-current,.ghost.is-active,.mobile-nav a.is-current{background:var(--accent);border-color:var(--accent);color:var(--bg2)}.mobile-nav a.is-current{box-shadow:inset 0 -3px 0 color-mix(in srgb,var(--accent2) 82%,var(--bg2));}.theme-picker,select,input{border:1px solid var(--line);border-radius:4px;background:var(--surface2);color:var(--text);padding:.5rem .58rem;outline:none}.theme-picker{max-width:168px;color:var(--soft);font-weight:700;font-size:.76rem}input:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 2px color-mix(in srgb,var(--accent) 25%,transparent)}
.eyebrow{margin:0 0 .45rem;color:var(--accent);font:800 .7rem/1 var(--mono);text-transform:uppercase;letter-spacing:.08em}.lede{margin:0 0 .9rem;color:var(--soft);line-height:1.58}.compact{margin:.35rem 0 0;max-width:740px}.empty,.empty-state{padding:.9rem;border:1px dashed var(--line2);border-radius:4px;background:var(--surface2);color:var(--soft)}.errors{display:grid;gap:.35rem;margin:.9rem 0;padding:.85rem;border:1px solid color-mix(in srgb,var(--danger) 48%,var(--line));border-left:4px solid var(--danger);background:color-mix(in srgb,var(--danger) 10%,var(--surface));color:var(--text)}
.panel,.article-card,.portal-card,.blog-post-card,.blog-article,.reader-toolbar{border:1px solid var(--line);border-radius:4px;background:var(--surface);box-shadow:none;overflow:hidden}.panel:before,.article-card:before,.portal-card:before,.blog-post-card:before,.blog-article:before,.reader-toolbar:before{display:none}.panel{padding:.95rem}.source-note{display:grid;gap:.25rem;margin:.85rem 0;padding:.85rem;border:1px solid var(--line);border-left:4px solid var(--accent);background:var(--surface);color:var(--soft)}.source-note b{color:var(--ink)}.source-note span{font-weight:750;color:var(--text)}.source-note small{color:var(--muted)}
.portal-shell,.briefing-shell,.hockey-shell,.climbing-shell{width:min(var(--max),calc(100% - 1.4rem));margin:0 auto;padding:1rem 0 5rem}.portal-hero,.briefing-hero,.hockey-hero,.climbing-hero,.blog-hero{min-height:0;padding:1rem;border:1px solid var(--line);border-radius:4px;background:var(--surface)}.portal-mark{display:none}.portal-hero h1,.briefing-hero h1,.hockey-hero h1,.climbing-hero h1,.blog-hero h1{max-width:920px;margin:.05rem 0 .7rem;font-size:clamp(1.9rem,5vw,4.2rem);line-height:1;letter-spacing:-.055em;color:var(--ink);text-transform:none;background:none}.portal-hero p:not(.eyebrow),.briefing-hero p:not(.eyebrow),.hockey-hero p:not(.eyebrow),.climbing-hero p:not(.eyebrow),.blog-hero p:not(.eyebrow){max-width:780px;color:var(--soft);line-height:1.58}.portal-ops{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.75rem;align-items:center;margin:.75rem 0 0}.portal-ops h2{margin:.05rem 0 .2rem;color:var(--ink);font-size:1.1rem;letter-spacing:-.025em}.portal-ops span{color:var(--soft);line-height:1.42}.portal-ops-grid{display:flex;gap:.42rem;flex-wrap:wrap;justify-content:flex-end}.ops-pill{display:grid;gap:.16rem;min-width:96px;padding:.52rem .62rem;border:1px solid var(--line);border-radius:4px;background:var(--surface2)}.ops-pill b{color:var(--ink);font-size:.82rem}.ops-pill small{color:var(--muted);font:730 .66rem/1 var(--mono);text-transform:uppercase}.ops-pill.ok{border-left:4px solid var(--ok)}.ops-pill.warn{border-left:4px solid var(--warn)}.home-mosaic{display:grid;grid-template-columns:280px 1fr 1fr;grid-auto-rows:minmax(170px,auto);gap:.75rem;margin-top:.75rem}.portal-card{display:flex;flex-direction:column;justify-content:space-between;padding:.95rem;min-height:170px}.home-mosaic .portal-card:first-child{grid-row:span 2}.home-mosaic .portal-card:nth-child(2){grid-column:span 2}.portal-card:hover{border-color:var(--line2)}.card-code{color:var(--muted);font:800 .68rem/1 var(--mono);text-transform:uppercase;letter-spacing:.08em}.portal-card h2{margin:.55rem 0 .3rem;font-size:clamp(1.35rem,2.4vw,2.05rem);letter-spacing:-.04em;line-height:1.04;color:var(--ink)}.portal-card p{color:var(--soft);line-height:1.5;margin:0}.portal-meta{display:flex;gap:.35rem;flex-wrap:wrap;margin-top:.85rem}.portal-meta span{border:1px solid var(--line);border-radius:3px;background:var(--surface2);color:var(--muted);padding:.34rem .45rem;font:730 .68rem/1 var(--mono)}
.news-layout{display:grid;grid-template-columns:1fr;gap:.85rem;width:min(1180px,calc(100% - 1.4rem));margin:0 auto;padding:.9rem 0 5rem}.reader-toolbar{display:grid;grid-template-columns:1fr;gap:.85rem;margin-bottom:.75rem;padding:.95rem}.reader-title{margin:0;font-size:clamp(1.9rem,5vw,4.2rem);line-height:1;letter-spacing:-.055em;color:var(--ink);text-transform:none;background:none}.toolbar-controls{display:flex;gap:.42rem;flex-wrap:wrap;align-items:center}.toolbar-controls input#filter{max-width:280px;min-width:210px}.filter-status{margin:.1rem 0 0;color:var(--muted);font:730 .7rem/1.35 var(--mono);letter-spacing:.025em}.toggle,.quality-filter{display:flex;align-items:center;gap:.38rem;border:1px solid var(--line);border-radius:4px;background:var(--surface2);padding:.44rem .55rem;color:var(--soft);font-weight:700;font-size:.8rem}.quality-filter span{font:730 .64rem/1 var(--mono);text-transform:uppercase;color:var(--muted)}.list{display:grid;gap:.55rem}.article-card{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.85rem;padding:.85rem}.article-card.is-read{opacity:.52}.article-card.is-favorite{border-left:4px solid var(--warn)}.article-card.is-exploration{border-left:4px solid var(--accent2)}.article-card.is-exploration:after{display:none}.meta{display:flex;gap:.35rem;flex-wrap:wrap;margin-bottom:.35rem}.meta span,.source{color:var(--muted);font:730 .68rem/1.2 var(--mono);text-transform:uppercase;letter-spacing:.03em}.article-card h3{margin:.08rem 0 .28rem;font-size:clamp(1.02rem,1.65vw,1.35rem);line-height:1.24;letter-spacing:-.018em;color:var(--ink)}.article-card h3 a:hover{color:var(--accent)}.article-card p{margin:.3rem 0;color:var(--soft);line-height:1.55}.curation-note{color:var(--accent2)!important}.source b{color:var(--warn)}.article-actions{display:flex;align-items:start;gap:.32rem;min-width:238px}.article-actions form{margin:0}.mini-action,.mini-danger{min-width:39px;padding:.5rem!important}.mini-danger,.danger{color:var(--danger)!important}.feedback-button.is-active{background:var(--accent);border-color:var(--accent);color:var(--bg2)!important}.setup-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.75rem;align-items:start}.setup-strip .status-panel{grid-column:1/-1}.status-panel h2,.manage summary,.panel h2{margin:.08rem 0 .5rem;color:var(--ink);letter-spacing:-.02em}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:.45rem}.stats span{display:grid;gap:.1rem;place-items:start;padding:.55rem;border:1px solid var(--line);border-radius:4px;background:var(--surface2)}.stats b{font-size:1.15rem;color:var(--ink)}.stats small{color:var(--muted);font:730 .64rem/1 var(--mono);text-transform:uppercase}.manage summary{cursor:pointer;font-weight:800;list-style:none}.manage summary::-webkit-details-marker{display:none}.manage summary:after{content:"+";float:right;color:var(--muted)}.manage[open] summary:after{content:"–"}.add-form{display:flex;gap:.38rem;margin:.65rem 0}.add-form.vertical{display:grid}.add-form input{min-width:0;flex:1}.chips,.sources{display:flex;gap:.35rem;flex-wrap:wrap;padding:0;margin:.55rem 0;list-style:none}.managed-sources{display:grid}.managed-sources li,.topic-source{display:flex;justify-content:space-between;gap:.5rem;align-items:center;padding:.52rem;border:1px solid var(--line);border-radius:4px;background:var(--surface2);min-width:0}.managed-sources li span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--soft)}.switch-row{display:flex;gap:.55rem;align-items:flex-start;padding:.58rem 0;border-bottom:1px solid var(--line);color:var(--soft)}.switch-row b{display:block;color:var(--text)}.switch-row small,.hint{display:block;color:var(--muted);line-height:1.4}.learning-grid{display:grid;grid-template-columns:1fr 1fr;gap:.55rem}.learn-chip{display:inline-flex;margin:.22rem .22rem 0 0;border:1px solid var(--line);border-radius:3px;padding:.32rem .42rem;color:var(--ok);background:var(--surface2);font-size:.78rem}.learn-chip.muted{color:var(--danger)}
.briefing-freshness{display:inline-flex;align-items:center;gap:.42rem;margin:.75rem 0 0!important;padding:.44rem .58rem;border:1px solid var(--line);border-left:4px solid var(--accent2);border-radius:4px;background:var(--surface2);color:var(--soft);font:730 .72rem/1.25 var(--mono);text-transform:uppercase}.briefing-freshness b{color:var(--accent2)}.briefing-freshness span{color:var(--text)}.briefing-actions{display:flex;align-items:center;gap:.55rem;margin:.75rem 0 0;padding:.75rem}.briefing-actions div{min-width:0;margin-right:auto}.briefing-actions strong{display:block;color:var(--ink);letter-spacing:-.02em}.briefing-actions span{display:block;margin-top:.18rem;color:var(--soft);font-size:.86rem;line-height:1.35}.briefing-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.75rem;margin-top:.75rem}.briefing-card{padding:.9rem}.briefing-card:first-child{grid-column:span 2}.briefing-item{display:grid;gap:.25rem;padding:.68rem 0;border-bottom:1px solid var(--line)}.briefing-item b{line-height:1.22;color:var(--ink)}.briefing-item span{color:var(--muted);font:730 .72rem/1.25 var(--mono);text-transform:uppercase}.domain-radar{display:grid;gap:.45rem}.radar-row{position:relative;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.5rem;align-items:center;padding:.5rem .55rem;border:1px solid var(--line);border-radius:4px;background:var(--surface2);overflow:hidden}.radar-row span,.radar-row b{position:relative;z-index:1}.radar-row span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--soft)}.radar-row b{color:var(--accent)}.radar-row i{position:absolute;inset:0 auto 0 0;width:var(--w);background:color-mix(in srgb,var(--accent) 13%,transparent);border-right:1px solid color-mix(in srgb,var(--accent) 40%,transparent)}.status-row{display:flex;justify-content:space-between;gap:.8rem;padding:.62rem 0;border-bottom:1px solid var(--line);color:var(--soft)}.status-row b.ok{color:var(--ok)}.status-row b.warn{color:var(--danger)}
.blog-shell,.blog-article-shell{width:min(980px,calc(100% - 1.4rem));margin:0 auto;padding:1rem 0 5rem}.blog-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.75rem;margin-top:.75rem}.blog-post-card,.blog-article{display:block;padding:.95rem}.blog-post-card:hover{border-color:var(--line2)}.blog-date,.read-more,.backlink,.back-link{color:var(--accent);font:730 .7rem/1 var(--mono);text-transform:uppercase;letter-spacing:.07em}.blog-post-card h2,.blog-article h1{margin:.38rem 0;font-size:clamp(1.3rem,3vw,2.5rem);line-height:1.04;letter-spacing:-.04em;color:var(--ink)}.blog-post-card p,.article-excerpt,.article-body p{color:var(--soft);line-height:1.62}.article-body{margin-top:.85rem}.backlink,.back-link{display:inline-flex;margin-bottom:.85rem}
.hockey-hero,.climbing-hero{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.85rem;align-items:end}.hockey-hero:before,.climbing-hero:before{display:none}.hockey-pulse,.climbing-pulse,.score-orb{display:grid;place-items:center;width:104px;height:104px;border:1px solid var(--line);border-radius:4px;background:var(--surface2)}.hockey-pulse span,.climbing-pulse span,.score-orb b,.score-orb span{font-size:2.15rem;font-weight:900;color:var(--ink)}.hockey-pulse small,.climbing-pulse small,.score-orb small{text-align:center;color:var(--muted);font:730 .68rem/1 var(--mono);text-transform:uppercase}.ticker-panel,.all-games{margin:.75rem 0;padding:.9rem}.ticker-head{display:flex;justify-content:space-between;gap:.8rem;align-items:center}.ticker-head>span{color:var(--muted);font:730 .72rem/1.25 var(--mono);text-transform:uppercase}.ticker-strip{display:flex;gap:.45rem;overflow:auto;white-space:nowrap}.ticker-strip span{display:inline-flex;border:1px solid var(--line);border-radius:4px;background:var(--surface2);padding:.45rem .55rem;color:var(--soft)}.hockey-grid,.climbing-grid{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}.now-panel,.swiss-panel{padding:.9rem}.game-list,.all-game-list,.ranking-stack,.match-ticker{display:grid;gap:.45rem}.all-game-list{grid-template-columns:repeat(2,minmax(0,1fr))}.game-row{display:grid;grid-template-columns:auto minmax(0,1fr);gap:.34rem .55rem;align-items:center;padding:.65rem;border:1px solid var(--line);border-radius:4px;background:var(--surface2)}.game-row:hover{border-color:var(--line2)}.game-row b{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink)}.game-row small{grid-column:2;color:var(--muted);line-height:1.35}.game-state{border:1px solid var(--line2);border-radius:3px;color:var(--accent);padding:.28rem .38rem;font:730 .62rem/1 var(--mono);text-transform:uppercase}.game-row.live .game-state{color:var(--bg2);background:var(--accent);border-color:var(--accent)}.game-row.completed{opacity:.72}.ranking-card{display:grid;gap:.3rem;padding:.65rem;border:1px solid var(--line);border-radius:4px;background:var(--surface2)}.ranking-card b{color:var(--ink)}.ranking-card span,.ranking-card small{color:var(--soft);line-height:1.32}.scoreboard,.game-center{display:grid;gap:.75rem}.game-hero{display:grid;grid-template-columns:1fr auto;gap:.75rem;align-items:center}.scoreboard-teams{display:grid;grid-template-columns:1fr auto 1fr;gap:.75rem;align-items:center}.score-note{color:var(--muted)}.match-ticker span{padding:.58rem;border:1px solid var(--line);border-radius:4px;background:var(--surface2);color:var(--soft)}
[hidden],.is-filtered-out{display:none!important}.mobile-nav{display:none}.article-card,.portal-card,.briefing-card,.game-row,.blog-post-card{content-visibility:auto;contain-intrinsic-size:1px 220px}.shortcut-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.45rem;margin-top:.7rem}.shortcut-grid span{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:.5rem;padding:.55rem;border:1px solid var(--line);border-radius:4px;background:var(--surface2)}.shortcut-grid kbd{display:inline-grid;place-items:center;min-width:2rem;height:1.8rem;border:1px solid var(--line2);border-bottom-width:3px;border-radius:4px;background:var(--bg2);color:var(--ink);font:850 .8rem/1 var(--mono);text-transform:uppercase}.shortcut-grid small{color:var(--soft);line-height:1.35}
@media (max-width:1100px){.home-mosaic{grid-template-columns:1fr 1fr}.home-mosaic .portal-card:first-child,.home-mosaic .portal-card:nth-child(2){grid-column:auto;grid-row:auto}.setup-strip{grid-template-columns:1fr 1fr}.briefing-grid{grid-template-columns:1fr 1fr}.briefing-card:first-child{grid-column:auto}.all-game-list{grid-template-columns:1fr}.top-actions .ghost{display:none}.top-actions .ghost:nth-child(2),.top-actions .ghost:nth-child(3){display:inline-flex}}
@media (max-width:920px){.portal-shell,.briefing-shell,.hockey-shell,.climbing-shell,.blog-shell,.blog-article-shell,.news-layout{width:min(100% - .8rem,var(--max));padding-top:.7rem}.portal-ops{grid-template-columns:1fr}.portal-ops-grid{justify-content:stretch}.ops-pill{flex:1}.setup-strip{grid-template-columns:1fr;padding-bottom:5rem}.setup-strip .status-panel{display:none}.reader-toolbar{grid-template-columns:1fr}.toolbar-controls{display:grid;grid-template-columns:1fr 1fr}.toolbar-controls input#filter{grid-column:1/-1;max-width:none;min-width:0;order:-1}.toggle{grid-column:1/-1}.article-card{grid-template-columns:1fr}.article-actions{display:grid;grid-template-columns:1fr 58px 58px 70px;min-width:0}.article-actions form{display:block}.briefing-actions{display:grid;grid-template-columns:1fr 1fr}.briefing-actions div{grid-column:1/-1}.hockey-hero,.climbing-hero,.game-hero,.scoreboard-teams{grid-template-columns:1fr}.hockey-grid,.climbing-grid,.briefing-grid,.blog-list{grid-template-columns:1fr}.hockey-pulse,.climbing-pulse{width:98px;height:98px}.mobile-nav{position:fixed;left:0;right:0;bottom:0;z-index:60;display:flex;gap:.35rem;overflow-x:auto;padding:.55rem max(.65rem,env(safe-area-inset-left)) calc(.55rem + env(safe-area-inset-bottom)) max(.65rem,env(safe-area-inset-right));background:var(--bg2);border-top:1px solid var(--line)}.mobile-nav a,.mobile-nav button{min-width:74px;flex:1;text-align:center;padding:.62rem}.topbar{height:auto;min-height:54px;padding:.55rem .7rem}.brand small{display:none}.theme-picker{max-width:136px;padding:.48rem;font-size:.68rem}.learning-grid{grid-template-columns:1fr}}
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