/* Jugami Pre-Algebra: "kitchen-table notebook" theme. Deep teal ink, tomato and saffron accents, cream paper with dotted grid. */
:root{
  --ink:#123c4a; --ink2:#1f5a6b; --text:#24313a; --muted:#56656e;
  --paper:#fdf6e9; --paper2:#f6ead2; --dot:rgba(18,60,74,.13);
  --tomato:#e4572e; --tomato-ink:#a8361a; --saffron:#f2a541; --mint:#6cb4a4;
  --good:#2b7a4b; --bad:#b3261e;
  --radius:14px; --display:"Trebuchet MS","Avenir Next","Segoe UI",system-ui,sans-serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif; --mono:ui-monospace,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;color:var(--text);font-family:var(--sans);font-size:18px;line-height:1.65;background:var(--paper);
  background-image:radial-gradient(var(--dot) 1.2px,transparent 1.3px);background-size:22px 22px}
a{color:var(--tomato-ink);text-underline-offset:2px}
a:hover{color:var(--ink)}
img,svg{max-width:100%;height:auto}
h1,h2,h3{font-family:var(--display);color:var(--ink);line-height:1.2}
h1{font-size:clamp(2.1rem,6vw,3.2rem);margin:.2em 0 .1em}
h2{font-size:1.7rem;margin:2.2em 0 .4em;scroll-margin-top:12px}
h2::before{content:"";display:inline-block;width:.7em;height:.7em;margin-right:.35em;border-radius:50%;
  background:conic-gradient(var(--tomato) 0 25%,var(--saffron) 0 50%,transparent 0);border:2px solid var(--ink);vertical-align:-.05em}
h3{font-size:1.2rem;margin:1.4em 0 .3em}
.skip{position:absolute;left:-999px;top:8px}
.skip:focus{left:8px;background:var(--ink);color:#fff;padding:8px 12px;z-index:10}
:focus-visible{outline:3px solid var(--saffron);outline-offset:2px}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.wrap{max-width:1040px;margin:0 auto;padding:0 18px}
.prose{max-width:40rem}
.site-head{background:var(--ink);color:#fff;border-bottom:5px solid var(--tomato)}
.site-head .bar{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:10px 18px;max-width:1040px;margin:0 auto}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-family:var(--display);font-weight:700;font-size:1.25rem}
.brand:hover{color:#ffd9a8}
.head-nav{margin-left:auto;display:flex;flex-wrap:wrap;gap:6px}
.head-nav a{color:#fff;text-decoration:none;font-size:.9rem;padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.1)}
.head-nav a:hover,.head-nav a:focus-visible{background:var(--saffron);color:var(--ink)}
.crumbs{font-size:.9rem;color:var(--muted);margin:14px 0 0}
.hero{display:grid;gap:24px;align-items:center;padding:20px 0 8px}
@media(min-width:800px){.hero{grid-template-columns:1.15fr 1fr}}
.tagline{font-size:1.25rem;color:var(--ink2);font-weight:600;margin:0 0 .6em}
.hero figure{margin:0;background:#fff;border:3px solid var(--ink);border-radius:var(--radius);padding:10px;box-shadow:6px 6px 0 var(--saffron)}
.btns{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.btn,button{font:inherit;font-size:1rem;font-weight:600;cursor:pointer;border-radius:999px;padding:9px 18px;border:2px solid var(--ink);background:var(--tomato);color:#fff;text-decoration:none;display:inline-block}
.btn:hover,button:hover{background:var(--tomato-ink);color:#fff}
.btn.ghost,button.ghost{background:#fff;color:var(--ink)}
.btn.ghost:hover,button.ghost:hover{background:var(--paper2)}
.cards{list-style:none;padding:0;display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.card{background:#fff;border:2px solid var(--ink);border-radius:var(--radius);padding:16px;position:relative}
.card h3{margin:.4em 0 .2em}
.card p{margin:0;font-size:.97rem}
.card.soon{background:var(--paper2);border-style:dashed;color:var(--muted)}
.card.soon h3{color:var(--muted)}
.card svg{width:64px;height:64px}
.tag{position:absolute;top:12px;right:12px;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;padding:2px 9px;border-radius:999px;background:var(--paper2);color:var(--muted)}
.tag.on{background:var(--mint);color:var(--ink)}
.callout{background:#fff;border-left:6px solid var(--saffron);border-radius:0 var(--radius) var(--radius) 0;padding:12px 18px;margin:18px 0;max-width:42rem}
.callout.dyk{border-color:var(--mint)}
.callout h3{margin-top:.2em}
.rule{font-family:var(--mono);background:var(--paper2);padding:2px 6px;border-radius:6px;white-space:nowrap}
.example{background:#fff;border:2px solid var(--ink);border-radius:var(--radius);padding:12px 18px;margin:16px 0;max-width:42rem}
.example h3{margin-top:.2em}
.example ol{padding-left:1.3em;margin:.3em 0}
figure.art{margin:18px 0;max-width:42rem}
figure.art figcaption{font-size:.9rem;color:var(--muted)}
details{background:#fff;border:2px solid var(--ink2);border-radius:10px;padding:8px 14px;margin:10px 0;max-width:42rem}
summary{cursor:pointer;font-weight:600}
details p{margin:.4em 0}
.toc{background:#fff;border-radius:var(--radius);border:2px dashed var(--ink2);padding:10px 18px;max-width:42rem}
.toc ol{columns:2;margin:.3em 0}
.game{background:#fff;border:3px solid var(--ink);border-radius:var(--radius);padding:16px 18px;max-width:42rem;box-shadow:6px 6px 0 var(--mint)}
.game .q{font-size:1.5rem;font-weight:700;color:var(--ink);margin:.3em 0;font-family:var(--mono)}
.game .row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.game input{font:inherit;font-size:1.2rem;width:8em;padding:6px 10px;border:2px solid var(--ink);border-radius:10px}
.game .fb{min-height:1.6em;font-weight:600}
.fb.ok{color:var(--good)} .fb.no{color:var(--bad)}
.stats{display:flex;gap:18px;flex-wrap:wrap;font-size:.95rem;color:var(--muted)}
.stats b{color:var(--ink)}
.help{font-size:.95rem;color:var(--muted)}
.noscript{background:var(--paper2);padding:10px;border-radius:8px}
.pager{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin:40px 0 20px;padding-top:14px;border-top:2px dashed var(--ink2)}
.sources li{margin:.3em 0}
.site-foot{background:var(--ink);color:#e8f0f2;margin-top:40px;padding:20px 0;font-size:.95rem}
.site-foot a{color:#ffd9a8}
.jugami-more{margin-top:12px;display:flex;flex-wrap:wrap;gap:6px 10px}
@media(max-width:499px){
  .site-head .bar{flex-wrap:nowrap;gap:10px;padding:8px 12px}
  .brand{flex:0 0 auto;font-size:1.05rem}
  .head-nav{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;min-width:0}
  .head-nav::-webkit-scrollbar{display:none}
  .head-nav a{white-space:nowrap;font-size:.85rem;padding:4px 10px}
}