:root{--blue:#3C50FF;--ink:#222;--muted:#5f6368;--bg:#F1F1F1;--card:#fff;--line:#e3e3e3}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 Arial,Helvetica,sans-serif}
a{color:var(--blue);text-decoration:underline;text-decoration-color:var(--blue);text-underline-offset:2px;word-break:break-word}
img{max-width:100%;height:auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
main{max-width:680px;margin:0 auto;padding:20px 16px 40px}
.card{background:var(--card);border-radius:10px;padding:28px 32px;margin:0 0 20px}
/* header */
.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.top-in{max-width:680px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand img{display:block;width:132px;height:auto}
.top nav{display:flex;align-items:center;gap:18px;font-size:15px;font-weight:bold}
.top nav a{color:var(--ink);text-decoration:none}
.top nav a:hover{color:var(--blue)}
.top nav .nav-sub{background:var(--blue);color:#fff;border-radius:8px;padding:8px 14px}
.top nav .nav-sub:hover{color:#fff;opacity:.92}
/* hero */
.hero{text-align:center;padding:18px 8px 4px}
.hero-tag{font-size:24px;line-height:1.25;font-weight:bold;margin:0 0 8px}
.hero-about{color:var(--muted);margin:0 auto;max-width:520px}
.kicker{font-size:13px;font-weight:bold;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:26px 0 8px 4px}
/* subscribe */
.sub{background:#fff;border-radius:10px;padding:24px 28px;margin:0 0 20px;text-align:center;border-top:4px solid var(--blue)}
.sub-hero{margin-top:18px}
.sub-h{font-size:22px;line-height:1.25;margin:0 0 6px}
.sub-p{margin:0 0 14px;color:var(--muted)}
.sub-form{display:flex;gap:8px;max-width:460px;margin:0 auto}
.sub-form input{flex:1;min-width:0;font:inherit;padding:12px 14px;border:1px solid #c9c9c9;border-radius:8px;background:#fff;color:var(--ink)}
.sub-form input:focus{outline:2px solid var(--blue);outline-offset:1px;border-color:var(--blue)}
.sub-form button{font:bold 15px Arial,Helvetica,sans-serif;background:var(--blue);color:#fff;border:0;border-radius:8px;padding:12px 18px;cursor:pointer}
.sub-form button:hover{opacity:.92}
.sub-form button[disabled]{opacity:.6;cursor:default}
.sub-msg{margin:10px 0 0;font-size:15px;min-height:0}
.sub-msg:empty{display:none}
.sub-msg.ok{color:#137333;font-weight:bold}
.sub-msg.err{color:#b3261e}
/* issue */
.issue-h{margin-bottom:8px}
.issue-title{font-size:36px;line-height:1.15;margin:0 0 10px}
.issue-sub{font-size:20px;line-height:1.3;margin:0 0 10px}
.issue-date{font-weight:bold;margin:0}
.issue-body p{margin:0 0 16px}
.issue-body ul{margin:0 0 16px;padding-left:24px}
.issue-body li{margin:8px 0}
.issue-body li p{margin:0}
.issue-body hr{border:0;border-top:3px solid var(--blue);width:50%;margin:30px auto}
.issue-body h2.sec{font-size:28px;line-height:1.25;text-align:center;text-transform:uppercase;margin:0 0 6px;font-weight:bold}
.issue-body h2.sec + :not(.tagline){margin-top:16px}
.issue-body h3{font-size:20px;line-height:1.3;margin:0 0 12px}
.issue-body .tagline{text-align:center;font-weight:bold;margin:0 0 20px}
.issue-body .c{text-align:center}
.issue-body figure{margin:16px 0;text-align:center}
.issue-body figure img{border-radius:4px}
.issue-body figure.signoff{margin:20px 0 0}
.issue-body figure.signoff img{width:81px}
.issue-body blockquote{margin:16px 0;padding:14px 18px;border-left:4px solid var(--blue);background:#f6f7ff;border-radius:0 8px 8px 0}
.issue-body blockquote p{margin:0 0 6px}
.issue-body blockquote .tweet-by{font-size:14px;color:var(--muted);margin:0}
.issue-body table{width:100%;border-collapse:collapse}
.prevnext{display:flex;justify-content:space-between;gap:16px;margin:0 0 20px;font-size:15px;font-weight:bold}
.prevnext a{max-width:48%;text-decoration:none}
.prevnext .newer{text-align:right}
/* lists */
.list-title{font-size:32px;line-height:1.2;margin:0 0 8px}
.list-intro{color:var(--muted);margin:0 0 16px}
.list-h{font-size:22px;margin:0 0 6px}
.year{font-size:20px;margin:24px 0 4px;padding-bottom:6px;border-bottom:3px solid var(--blue);display:inline-block}
.rows{list-style:none;margin:0;padding:0}
.row a{display:grid;grid-template-columns:96px 1fr;column-gap:14px;padding:12px 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink)}
.row:last-child a{border-bottom:0}
.row time{grid-row:span 2;font-size:14px;color:var(--muted);padding-top:2px}
.row-t{font-weight:bold;line-height:1.3}
.row a:hover .row-t{color:var(--blue);text-decoration:underline}
.row-s{font-size:14px;color:var(--muted);line-height:1.35;margin-top:3px}
.more{margin:14px 0 0;font-weight:bold}
.search{width:100%;font:inherit;padding:11px 14px;border:1px solid #c9c9c9;border-radius:8px;margin:0 0 4px}
.prose p{margin:0 0 14px}
/* footer */
.foot{padding:0 16px 32px}
.foot-in{max-width:680px;margin:0 auto;background:var(--blue);color:#fff;border-radius:10px;padding:22px 20px;text-align:center}
.social{display:flex;justify-content:center;gap:16px;margin-bottom:10px}
.social img{display:block;width:22px;height:22px}
.foot-line{font-weight:bold;margin:0 0 8px}
.foot a{color:#fff;text-decoration-color:#fff}
.foot-small{font-size:13px;margin:0;opacity:.9}
@media (max-width:600px){
  main{padding:14px 10px 28px}
  .card{padding:22px 18px}
  .sub{padding:20px 16px}
  .sub-form{flex-direction:column}
  .sub-form button{padding:13px}
  .issue-title{font-size:28px}
  .issue-sub{font-size:18px}
  .issue-body h2.sec{font-size:23px}
  .list-title{font-size:27px}
  .hero-tag{font-size:21px}
  .top nav{gap:12px;font-size:14px}
  .top nav .nav-sub{padding:7px 10px}
  .brand img{width:108px}
  .row a{grid-template-columns:1fr}
  .row time{grid-row:auto;font-size:13px}
  .prevnext{flex-direction:column}
  .prevnext a{max-width:100%}
  .prevnext .newer{text-align:left}
}
@media (max-width:360px){.top nav a[href="/about/"]{display:none}}