:root{--ink:#14202e;--navy:#1d3557;--slate:#3d5a80;--sky:#dbe6f2;--red:#9b2c2c;--paper:#f7f4ec;--paper2:#e4dccb;--text:#1f2328;--gold:#b8892e;--muted:#5a5f66;--radius:12px;--serif:Georgia,"Palatino Linotype",Palatino,serif;--sans:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--text);font-family:var(--serif);font-size:18px;line-height:1.65}
a{color:var(--navy)}a:hover{color:var(--red)}
a:focus-visible,button:focus-visible,input:focus-visible+span,summary:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:var(--gold);color:var(--ink);padding:6px 10px;z-index:9}
.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}
.site-head{background:var(--navy);color:#fff;border-bottom:4px solid var(--gold)}
.bar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;padding:10px 0}
.brand{display:flex;gap:10px;align-items:center;color:#fff;text-decoration:none;font-size:1.15rem}
.brand svg{width:38px;height:38px}
.head-nav{display:flex;flex-wrap:wrap;gap:4px 14px;font-family:var(--sans);font-size:.92rem}
.head-nav a{color:#dbe6f2;text-decoration:none}.head-nav a:hover{color:#fff;text-decoration:underline}
.columns{height:12px;background:repeating-linear-gradient(90deg,var(--paper2) 0 10px,#fff 10px 20px);border-bottom:2px solid var(--paper2)}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:14px 0 0;font-family:var(--sans);font-size:.85rem;color:var(--muted)}
.crumbs li+li:before{content:"›";margin-right:6px}
.hero{display:grid;gap:24px;align-items:center;padding:26px 0 10px}
@media(min-width:800px){.hero{grid-template-columns:1.3fr 1fr}}
.hero svg{width:100%;height:auto}
.kicker{font-family:var(--sans);text-transform:uppercase;letter-spacing:.12em;font-size:.8rem;color:var(--red);margin:0}
h1{font-size:clamp(2rem,5vw,3.1rem);line-height:1.1;margin:.2em 0;color:var(--navy)}
.tagline{font-size:1.2rem;font-style:italic;color:var(--muted)}
h2{font-size:1.75rem;color:var(--navy);border-bottom:2px solid var(--gold);padding-bottom:4px;margin-top:2.2em}
h3{font-size:1.2rem;margin:.2em 0;color:var(--ink)}
.prose{max-width:70ch}
.toc{background:#fff;border:1px solid var(--paper2);border-radius:var(--radius);padding:12px 18px;font-family:var(--sans);font-size:.95rem}
.toc ol{margin:.3em 0;padding-left:1.2em}@media(min-width:600px){.toc ol{columns:2}}
.cards{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card{background:#fff;border:1px solid var(--paper2);border-top:5px solid var(--navy);border-radius:var(--radius);padding:14px 16px;box-shadow:0 2px 6px rgba(0,0,0,.06)}
.card.red{border-top-color:var(--red)}.card.gold{border-top-color:var(--gold)}.card p{margin:.4em 0}
.card .tag{font:700 .78rem var(--sans);text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.unit-card{display:grid;gap:16px;align-items:center;background:var(--navy);color:#f2f5f9;border-radius:var(--radius);padding:20px;text-decoration:none}
@media(min-width:700px){.unit-card{grid-template-columns:160px 1fr}}
.unit-card h3{color:#fff;font-size:1.4rem}.unit-card:hover{color:#fff;box-shadow:0 0 0 4px var(--gold)}
.unit-card svg{width:100%;max-width:160px;height:auto}
.soon{list-style:none;padding:0;display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.soon li{background:#fff;border:1px dashed #b9b2a2;border-radius:var(--radius);padding:10px 14px}
.soon li span{font:700 .78rem var(--sans);color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.timeline{list-style:none;padding:0;margin:0;border-left:4px solid var(--navy);margin-left:8px}
.timeline li{position:relative;padding:4px 0 18px 26px}
.timeline li:before{content:"";position:absolute;left:-12px;top:10px;width:20px;height:20px;border-radius:50%;background:var(--paper);border:4px solid var(--gold)}
.timeline time{font-family:var(--sans);font-weight:700;color:var(--red);font-size:.95rem}
.timeline p{margin:.3em 0 0;max-width:68ch}
.quote{background:#fff;border-left:6px solid var(--navy);border-radius:0 var(--radius) var(--radius) 0;margin:18px 0;padding:14px 18px}
.quote blockquote{margin:0;font-size:1.1rem;font-style:italic}
.quote figcaption{font-family:var(--sans);font-size:.9rem;color:var(--muted);margin-top:8px}
.quote .why{margin:.6em 0 0;font-size:1rem}
.preamble{background:#fffdf6;border:2px solid var(--paper2);border-radius:var(--radius);padding:18px 20px;font-size:1.15rem}
.preamble dl{display:grid;gap:8px;margin:14px 0 0;font-size:1rem}
.preamble dt{font-weight:700;color:var(--navy)}.preamble dd{margin:0 0 6px}
@media(min-width:700px){.preamble dl{grid-template-columns:260px 1fr}}
.callout{background:var(--sky);border:1px solid #bccde0;border-radius:var(--radius);padding:12px 16px}
table{border-collapse:collapse;width:100%;font-size:1rem;background:#fff}
.tablewrap{overflow-x:auto}
th,td{border:1px solid var(--paper2);padding:8px 10px;text-align:left;vertical-align:top}
th{background:var(--navy);color:#fff;font-family:var(--sans);font-size:.92rem}
details{background:#fff;border:1px solid var(--paper2);border-radius:var(--radius);padding:8px 14px;margin:8px 0}
summary{cursor:pointer;font-weight:700;color:var(--navy)}
.diagram{max-width:640px;margin:10px auto}.diagram svg{width:100%;height:auto}
.quiz,.game{background:#fff;border:2px solid var(--navy);border-radius:var(--radius);padding:16px}
.quiz fieldset{border:0;border-bottom:1px dashed var(--paper2);margin:0 0 12px;padding:0 0 12px}
.quiz legend{font-weight:700;margin-bottom:6px}
.quiz label{display:block;padding:3px 0;cursor:pointer}
.fb{font-family:var(--sans);font-size:.92rem;margin:.3em 0 0}
.fb.ok{color:#256029}.fb.no{color:var(--red)}
.score{font:700 1.1rem var(--sans);color:var(--navy)}
.btn{font:600 .95rem var(--sans);background:#fff;border:2px solid var(--navy);color:var(--navy);border-radius:999px;padding:7px 16px;cursor:pointer;margin:4px 6px 4px 0}
.btn.primary{background:var(--navy);color:#fff}
.sort-power{font-size:1.15rem;font-weight:700;margin:.4em 0;min-height:3em}
.game .choices{display:flex;flex-wrap:wrap;gap:6px}
.help{font-family:var(--sans);font-size:.92rem;color:var(--muted)}
.pager{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-family:var(--sans);margin:30px 0;padding:12px 0;border-top:1px solid var(--paper2)}
.site-foot{background:var(--ink);color:#d3dae3;margin-top:40px;padding:22px 0;font-family:var(--sans);font-size:.92rem}
.site-foot a{color:#f0d79a}
.jugami-more{margin-top:10px}.jugami-more span{font-weight:700;margin-right:4px}
.sources li{margin-bottom:6px}
/* tap targets (Mandy r1) */
.skip:focus,.brand,.head-nav a,.crumbs a,.toc a,.pager a,.jugami-more a,.btn{min-height:44px;display:inline-flex;align-items:center}
.toc li{margin:0}.crumbs ol{align-items:center}
.quiz label{display:flex;align-items:center;gap:8px;min-height:44px;padding:2px 0}
.quiz label input{width:20px;height:20px;flex:none;margin:0}
summary{display:flex;align-items:center;min-height:44px;list-style:none}
summary::-webkit-details-marker{display:none}
summary::before{content:"▸";margin-right:8px;transition:transform .15s}
details[open]>summary::before{transform:rotate(90deg)}
.jugami-more{display:flex;flex-wrap:wrap;align-items:center;gap:0 6px}
.head-nav{gap:0 14px}
.site-head .bar{padding:10px 18px}