/* How to Play (update 87). Sits on top of portal.css: same tokens (--cyan, --gold, --line, --muted, --ink, --panel), the same flat, sober panels. */
body.howto{--meas:70ch;--toc:268px;--soft:rgba(143,176,189,.07)}
body.howto main{padding-top:64px}
.skip{position:absolute;left:-999px;top:8px;z-index:50;background:#0c1b2c;color:#fff;padding:8px 14px;border:1px solid var(--cyan)}.skip:focus{left:8px}
.howto .wrap{max-width:1240px;margin:0 auto;padding:0 24px}
.howto .mk-img{display:block}.howto .brand{letter-spacing:0}.howto .bw{display:flex;flex-direction:column;line-height:1.1;letter-spacing:.26em}.howto .bw b{font-size:14px}.howto .bw i{font-style:normal;font-size:9px;color:var(--gold);letter-spacing:.5em}

/* masthead */
.hhead{padding:56px 0 30px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(15,39,64,.45),transparent)}
.hhead h1{font-size:clamp(30px,5vw,52px);letter-spacing:.1em;color:#fff;text-wrap:balance;line-height:1.1}
.hhead .lead{margin:16px 0 0;max-width:var(--meas)}
.hsearch{display:flex;align-items:center;flex-wrap:wrap;gap:8px 14px;margin-top:24px;max-width:640px}
.hsearch label{flex:0 0 100%;color:var(--gold);letter-spacing:.18em;text-transform:uppercase;font-size:11px;font-weight:600}
.hsearch input{flex:1 1 280px;min-width:0;padding:12px 14px;background:rgba(3,8,16,.85);color:var(--ink);border:1px solid var(--line2);font:inherit;border-radius:0}
.hsearch input:focus{outline:2px solid var(--cyan);outline-offset:1px}
.qcount{color:var(--muted);font-size:13px;min-height:1em}
.hmeta{margin:16px 0 0;color:var(--muted);font-size:13px}.hmeta b{color:var(--ink)}

/* layout: contents on the left, one readable column on the right */
.hlayout{display:grid;grid-template-columns:var(--toc) minmax(0,1fr);gap:40px;align-items:start;padding-top:30px;padding-bottom:60px}
.toc{position:sticky;top:76px;max-height:calc(100vh - 92px);overflow:auto;padding-right:6px;scrollbar-width:thin;scrollbar-color:var(--line2) transparent}
.toc summary{cursor:pointer;color:var(--gold);letter-spacing:.2em;text-transform:uppercase;font-size:11px;font-weight:700;padding:6px 0;list-style:none}
.toc summary::-webkit-details-marker{display:none}
.toc nav{display:flex;flex-direction:column;border-left:1px solid var(--line);margin-top:4px}
.toc a{text-decoration:none;color:var(--muted);font-size:13px;line-height:1.35}
.toc .t2{display:flex;gap:10px;align-items:baseline;padding:6px 10px;border-left:2px solid transparent;margin-left:-1px}
.toc .t2 i{font-style:normal;color:#5d7b92;font-size:11px;min-width:1.4em;font-variant-numeric:tabular-nums}
.toc .t2:hover,.toc .t3:hover{color:#fff}
.toc .t2.on{color:#fff;border-left-color:var(--gold);background:linear-gradient(90deg,var(--soft),transparent)}
.toc .subs{display:none;flex-direction:column;padding:2px 0 6px 38px}.toc .subs.open{display:flex}
.toc .t3{padding:3px 0;font-size:12px}

/* the guide */
.guide{min-width:0;outline:none}
.gsec{padding:6px 0 38px;border-top:1px solid var(--line);margin-top:6px}
.gsec:first-of-type{border-top:0;margin-top:0}
.gsec>h2{font-size:clamp(23px,3vw,32px);letter-spacing:.04em;color:#fff;margin:26px 0 8px;text-wrap:balance;line-height:1.2}
.gsec>h2:before{content:"";display:inline-block;width:10px;height:10px;margin-right:12px;border:2px solid var(--gold);transform:rotate(45deg) translateY(-3px)}
.blk{margin:22px 0;max-width:100%}
.blk>p,.blk>ul,.blk>ol,.blk>.call,.blk>details{max-width:var(--meas)}
.blk p,.blk li{color:#c3d4e2}
.blk p{margin:0 0 12px}
.blk h3{font-size:18px;color:var(--cyan);letter-spacing:.1em;text-transform:uppercase;margin:0 0 10px;font-weight:700}
.blk h4{font-size:14px;color:var(--gold);letter-spacing:.1em;text-transform:uppercase;margin:12px 0 6px}
.blk h5{margin:8px 0 2px;font-size:12px;color:var(--muted);letter-spacing:.12em;text-transform:uppercase}
.blk b{color:#fff}.blk i{color:#d6e4ef}
.blk ul,.blk ol{padding-left:1.25rem;margin:0 0 14px}.blk li{margin:4px 0}
.small{font-size:13px;color:var(--muted)!important}
code,kbd{font-family:ui-monospace,Menlo,Consolas,monospace}
code{background:rgba(143,176,189,.1);padding:1px 5px;font-size:.9em}
kbd{display:inline-block;min-width:1.5em;text-align:center;padding:1px 6px;margin:0 1px;border:1px solid var(--line2);border-bottom-width:2px;border-radius:3px;background:#0a1626;color:#fff;font-size:.82em;line-height:1.5}

/* numbered steps (override the portal's tile grid) */
.howto ol.steps{display:block;list-style:none;padding:0;margin:0 0 14px;counter-reset:st}
.howto ol.steps>li{position:relative;display:block;padding:12px 14px 12px 54px;margin:8px 0;border:1px solid var(--line);border-top:1px solid var(--line);background:var(--panel);counter-increment:st;color:#c3d4e2}
.howto ol.steps>li:before{content:counter(st);position:absolute;left:14px;top:11px;width:28px;height:28px;display:grid;place-items:center;border:1px solid var(--cyan);color:var(--cyan);font-weight:700;font-size:13px;transform:none;background:none}
.howto ol.steps.big>li{padding-top:14px;padding-bottom:14px}
.howto ol.steps.big>li:before{border-color:var(--gold);color:var(--gold)}

/* call-outs */
.call{padding:12px 16px;margin:16px 0;border:1px solid var(--line2);border-left:3px solid var(--cyan);background:var(--panel);color:#c3d4e2}
.call.tip{border-left-color:var(--green)}.call.warn{border-left-color:var(--red)}.call.note{border-left-color:var(--gold)}
.call>b:first-child{color:#fff}

/* disclosure blocks */
details.deep{border:1px solid var(--line);background:rgba(8,15,28,.6);margin:10px 0}
details.deep>summary{cursor:pointer;padding:11px 16px;color:#fff;font-weight:600;list-style:none;position:relative;padding-right:40px}
details.deep>summary::-webkit-details-marker{display:none}
details.deep>summary:after{content:"+";position:absolute;right:16px;top:8px;color:var(--gold);font-size:18px;font-weight:400}
details.deep[open]>summary:after{content:"\2212"}
details.deep>summary:hover{background:var(--soft)}
details.deep>*:not(summary){margin-left:16px;margin-right:16px}
details.deep>:last-child{margin-bottom:14px}
details.deep summary small{color:var(--muted);font-weight:400;margin-left:8px}
details.branch{border-left:3px solid var(--c,var(--cyan))}

/* tables */
.tw{overflow-x:auto;margin:12px 0;border:1px solid var(--line);max-width:100%}
.tw>.tbl,.tw>table{margin:0;border:0}
.tbl{width:100%;border-collapse:collapse;font-size:13.5px;background:rgba(5,10,19,.55)}
.blk>.tbl{margin:12px 0;border:1px solid var(--line)}
.tbl th,.tbl td{padding:8px 12px;text-align:left;vertical-align:top;border-bottom:1px solid #12263a;color:#c3d4e2}
.tbl thead th{background:#0a1a2c;color:var(--gold);font-size:11px;letter-spacing:.12em;text-transform:uppercase;white-space:nowrap;position:sticky;top:0}
.tbl tbody tr:hover td,.tbl tbody tr:hover th{background:var(--soft)}
.tbl td:first-child,.tbl th[scope=row]{color:#fff}
.tbl tr:last-child td,.tbl tr:last-child th{border-bottom:0}
.tbl .ok{color:var(--green)}.tbl .soon{color:var(--gold)}.tbl .cost{color:var(--gold);font-weight:700}.tbl .gain{color:var(--green);font-weight:700}
.matrix th,.matrix td{text-align:center;white-space:nowrap}.matrix th:first-child{text-align:left}
.matrix td.good{background:rgba(91,227,160,.16);color:#9af0c4;font-weight:700}.matrix td.bad{background:rgba(255,91,107,.16);color:#ff9aa4;font-weight:700}.matrix td.even,.matrix td.self{color:#6c8296}

/* cards */
.howto .cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:14px;justify-content:stretch}
.howto .cards>*{max-width:none;flex:none}
.howto .cards.narrow{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}
.card{padding:16px 16px 12px;border:1px solid var(--line);border-top:3px solid var(--c,var(--cyan));background:var(--panel)}
.card h4{margin:0 0 4px;color:#fff;text-transform:none;letter-spacing:.02em;font-size:17px}.card h4 small{display:block;color:var(--muted);font-size:12px;font-weight:400;letter-spacing:.04em}
.card p{margin:6px 0;font-size:13.5px}.card .tagl{color:#fff;font-style:italic}
.card .tags{display:flex;flex-wrap:wrap;gap:6px}.card .tags span{padding:1px 8px;border:1px solid var(--line2);color:var(--muted);font-size:11px;letter-spacing:.06em;text-transform:uppercase}
.card details{margin-top:8px;font-size:13px}.card summary{cursor:pointer;color:var(--cyan)}.card ul{padding-left:1.1rem;margin:2px 0 6px}
.cols3{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;max-width:100%!important;padding:0!important;list-style:none}
.blk>ul.cols3{padding:0}
ul.cols3>li,div.cols3>div{padding:14px 16px;border:1px solid var(--line);background:var(--panel);margin:0}
.cols3 h4{margin-top:0}.cols3 ul{margin-bottom:0}

/* lists of keys, tech lists, glossary, production chain */
.keys{display:flex;flex-wrap:wrap;gap:6px 18px;color:#c3d4e2;font-size:13.5px}.keys span{white-space:nowrap}
.techlist{margin:0 0 8px}.techlist dt{margin-top:12px;color:#fff;font-weight:600}.techlist dt small{color:var(--muted);font-weight:400;margin-left:6px}
.techlist dd{margin:2px 0 0;color:#c3d4e2;font-size:13.5px}.techlist .why{display:block;color:var(--muted);margin-top:2px}
.gloss{display:grid;grid-template-columns:max-content 1fr;gap:6px 18px;margin:0;max-width:var(--meas)}.gloss dt{color:#fff;font-weight:600}.gloss dd{margin:0;color:#c3d4e2}
.chain{display:flex;flex-wrap:wrap;align-items:stretch;gap:8px;margin:14px 0;max-width:100%}
.chain span{flex:1 1 130px;padding:10px 12px;text-align:center;border:1px solid var(--line2);background:var(--panel);color:#fff;font-weight:600}
.chain small{color:var(--muted);font-weight:400}.chain i{align-self:center;color:var(--gold);font-style:normal}

/* footer */
.hfoot{margin-top:0}.hfoot a{color:var(--muted);text-decoration:none}.hfoot a:hover{color:#fff}

/* narrow screens: the contents list folds above the text */
@media(max-width:900px){
  .hlayout{grid-template-columns:minmax(0,1fr);gap:8px}
  .toc{position:static;max-height:none;overflow:visible;border:1px solid var(--line);background:var(--panel);padding:8px 14px}
  .toc nav{max-height:55vh;overflow:auto}
  .howto .wrap{padding:0 16px}
  .gsec>h2:before{display:none}
  .gloss{grid-template-columns:1fr}.gloss dt{margin-top:6px}
}
@media(max-width:520px){
  .howto ol.steps>li{padding-left:48px}
  .tbl th,.tbl td{padding:7px 9px}
  .hhead{padding-top:34px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{.nav,.toc,.hsearch,#sky{display:none}.hlayout{display:block}body{background:#fff;color:#000}.blk p,.blk li,.tbl td{color:#000}}