/* Layout: a restrained financial news front page: lead story beside a latest list, then a two-column topic index. */
:root{
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  --body:"Source Serif 4",Georgia,"Times New Roman",serif;
  --ui:"IBM Plex Sans","Helvetica Neue",Arial,sans-serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#11161B;--ink:#E7EBEF;--muted:#A0AAB4;--rule:#2C343C;--soft:#1A2027;--link:#8FBDEB;--strong:#CFE1F3;--brand:#9DBDE8;
  --beginner-bg:#1B3148;--beginner-fg:#B9D6F2;--advanced-bg:#2B3239;--advanced-fg:#D3DAE0;--sample-bg:#3C3213;--sample-fg:#EAD597;color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#11161B;--ink:#E7EBEF;--muted:#A0AAB4;--rule:#2C343C;--soft:#1A2027;--link:#8FBDEB;--strong:#CFE1F3;--brand:#9DBDE8;
  --beginner-bg:#1B3148;--beginner-fg:#B9D6F2;--advanced-bg:#2B3239;--advanced-fg:#D3DAE0;--sample-bg:#3C3213;--sample-fg:#EAD597;color-scheme:dark}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:400 1rem/1.55 var(--ui)}
a{color:var(--link);text-underline-offset:.16em}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--link);outline-offset:2px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.wrap{width:100%;max-width:72rem;margin-inline:auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.skip{position:absolute;left:-999px;background:var(--paper);padding:.5rem 1rem;z-index:5}
.skip:focus{left:16px;top:16px}
.band{background:var(--paper);border-bottom:1px solid var(--rule)}
.bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.35rem 2rem;padding-block:.8rem}
.brand{font:600 1.6rem/1.2 var(--body);color:var(--brand);text-decoration:none}
.bar nav{display:flex;flex-wrap:wrap;gap:.15rem 1.25rem;font:500 .875rem/1.6 var(--ui)}
.bar nav a{color:var(--ink);text-decoration:none;border-bottom:2px solid transparent}
.bar nav a:hover{color:var(--link)}
.bar nav a[aria-current]{border-bottom-color:var(--strong)}
main{padding-block:1.75rem 3.5rem}
h1,h2,h3{text-wrap:balance}
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.lead{min-width:0}
.lead h2{margin:.6rem 0 .55rem;font:600 clamp(1.75rem,3.4vw,2.5rem)/1.15 var(--body)}
.lead h2 a,.row h3 a,.topic-head h2 a,.latest a{color:inherit;text-decoration:none}
.lead h2 a:hover,.row h3 a:hover,.topic-head h2 a:hover,.latest a:hover{color:var(--link);text-decoration:underline;text-decoration-thickness:1px}
.lead>p{margin:0;max-width:40rem;font:400 1.1rem/1.5 var(--body);color:var(--muted)}
.latest{min-width:0;padding-left:2rem;border-left:1px solid var(--rule)}
.latest .label{margin:0 0 .75rem}
.latest ul{list-style:none;margin:0;padding:0;display:grid;gap:.9rem}
.latest li{display:grid;gap:.15rem;font:600 .98rem/1.35 var(--body)}
.latest time{font:400 .78rem/1.4 var(--ui);color:var(--muted)}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:.25rem .65rem;font:400 .8rem/1.5 var(--ui);color:var(--muted);font-variant-numeric:tabular-nums}
.chip{display:inline-block;padding:.03rem .4rem;border-radius:2px;font:500 .7rem/1.5 var(--ui)}
.chip-beginner{background:var(--beginner-bg);color:var(--beginner-fg)}
.chip-advanced{background:var(--advanced-bg);color:var(--advanced-fg)}
.chip-sample{background:var(--sample-bg);color:var(--sample-fg)}
.topics-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2.5rem;padding-top:2rem}
.topic-block{min-width:0}
.topic-head{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;padding-bottom:.5rem;margin-bottom:1.1rem;border-bottom:2px solid var(--strong)}
.topic-head h2{margin:0;font:600 1.2rem/1.25 var(--ui);color:var(--strong)}
.more{font:500 .82rem/1.4 var(--ui)}
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.row{min-width:0}
.row h3{margin:.25rem 0 .2rem;font:600 1.13rem/1.3 var(--body)}
.row p{margin:0;color:var(--muted);font-size:.92rem;line-height:1.45}
.empty{margin:0;color:var(--muted);font-size:.92rem}
.page-head{max-width:46rem;padding-bottom:1.25rem}
.page-head h1{margin:0;font:600 clamp(1.8rem,3.5vw,2.4rem)/1.15 var(--body)}
.page-head>p:not(.crumb){margin:.5rem 0 0;font-size:1.02rem;color:var(--muted)}
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.region h2{margin:0 0 .45rem}
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.filter button{appearance:none;border:1px solid var(--rule);background:var(--paper);color:var(--ink);padding:.25rem .7rem;border-radius:2px;font:500 .85rem/1.4 var(--ui);cursor:pointer}
.filter button:hover{border-color:var(--muted)}
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.article{max-width:42rem;margin-inline:auto}
.article header h1{margin:0;font:600 clamp(1.9rem,4vw,2.75rem)/1.15 var(--body)}
.dek{margin:.7rem 0 .9rem;font:400 1.2rem/1.4 var(--body);color:var(--muted)}
.cover{display:block;width:100%;margin-top:1.5rem}
.prose{min-width:0;font:400 1.1rem/1.65 var(--body);margin-top:1.75rem;padding-top:1.5rem;border-top:1px solid var(--rule)}
.prose>*:first-child{margin-top:0}
.prose h1{font:600 clamp(1.8rem,3.5vw,2.4rem)/1.15 var(--body);margin:0 0 1rem}
.prose h2{font:600 1.45rem/1.25 var(--body);margin:2rem 0 .5rem}
.prose h3{font:600 1.15rem/1.3 var(--body);margin:1.5rem 0 .35rem}
.prose p,.prose ul,.prose ol{margin:0 0 1.05rem}
.prose li{margin-bottom:.3rem}
.prose blockquote{margin:1.5rem 0;padding:.25rem 0 .25rem 1rem;border-left:3px solid var(--strong);font-size:1.18rem;line-height:1.45}
.prose blockquote p{margin:0}
.prose img{display:block;max-width:100%;height:auto}
.prose table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;font:400 .92rem/1.4 var(--ui);font-variant-numeric:tabular-nums;margin:0 0 1.3rem}
.prose th,.prose td{padding:.5rem .8rem .5rem 0;border-bottom:1px solid var(--rule);text-align:left;white-space:nowrap}
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.attach{font:600 .95rem/1.4 var(--ui);margin:1.25rem 0 0}
.notice{margin:2rem 0 0;padding-top:.9rem;border-top:1px solid var(--rule);font:400 .85rem/1.5 var(--ui);color:var(--muted)}
.foot{background:var(--soft);border-top:1px solid var(--rule)}
.foot-in{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem 3rem;padding-block:1.75rem;font:400 .85rem/1.5 var(--ui)}
.foot-in>div{flex:1 1 20rem;max-width:38rem;min-width:0}
.foot strong{font:600 1rem/1.3 var(--body);color:var(--strong)}
.foot p{margin:.3rem 0 0;color:var(--muted)}
.foot nav{display:flex;flex-wrap:wrap;gap:.3rem 1.1rem}
@media (max-width:760px){.front,.topics-grid{grid-template-columns:minmax(0,1fr)}.latest{padding-left:0;padding-top:1.25rem;border-left:0;border-top:1px solid var(--rule)}}
.subnav{display:flex;flex-wrap:wrap;gap:.15rem 1.25rem;margin-bottom:1.5rem;padding-bottom:.6rem;border-bottom:1px solid var(--rule);font:500 .9rem/1.6 var(--ui)}
.subnav a{color:var(--ink);text-decoration:none;border-bottom:2px solid transparent}
.subnav a:hover{color:var(--link)}
.subnav a[aria-current]{border-bottom-color:var(--strong)}
.community{padding:1.25rem 1.4rem;background:var(--soft);border:1px solid var(--rule);border-radius:2px;max-width:46rem}
.community h2{margin:0 0 .3rem;font:600 1.2rem/1.25 var(--ui);color:var(--strong)}
.community p{margin:0;color:var(--muted)}
.home-community{max-width:none;margin-top:2.5rem;display:grid;gap:.3rem}