/* Tokens and type follow the long-read format: a paper background, ink text,
   cobalt links, a serif reading column and a sans "instrument" face for labels. */
:root{
  --paper:#F2F4F8; --card:#FFFFFF; --ink:#141A2E; --muted:#596277; --rule:#D5DBE6;
  --cobalt:#2F45D8; --cobalt-soft:#E3E7FB; --signal:#C9741A; --code-bg:#E9ECF3;
  --display:"Source Serif 4", Georgia, serif;
  --body:"Source Serif 4", Georgia, serif;
  --mono:"Source Sans 3", "Helvetica Neue", Arial, sans-serif;
  --code:ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --paper:#0D1120; --card:#151B2E; --ink:#E7EBF5; --muted:#9AA3B8; --rule:#283149;
  --cobalt:#8494FF; --cobalt-soft:#1E2650; --signal:#F0A24E; --code-bg:#11172A; color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#0D1120; --card:#151B2E; --ink:#E7EBF5; --muted:#9AA3B8; --rule:#283149;
  --cobalt:#8494FF; --cobalt-soft:#1E2650; --signal:#F0A24E; --code-bg:#11172A; color-scheme:dark}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:1.18rem;line-height:1.6;padding-inline:20px;padding-block:0 80px}
.wrap{max-width:46rem;margin:0 auto}
h1,h2,h3,h4{font-family:var(--display);text-wrap:balance;line-height:1.1;margin:0}
h1{font-size:clamp(2.1rem,5.5vw,3.4rem);font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,3.2vw,2rem);font-weight:700;letter-spacing:-.01em}
h3{font-size:1.25rem;font-weight:700}
h4{font-size:1.08rem;font-weight:700}
p{margin:0}
a{color:var(--cobalt);text-decoration-thickness:1px;text-underline-offset:.15em}
a:hover{text-decoration-thickness:2px}
em{font-style:italic}
strong,b{font-weight:600}
code{font-family:var(--code);font-size:.82em;background:var(--code-bg);padding:.1em .35em;border-radius:4px}
:focus-visible{outline:2px solid var(--cobalt);outline-offset:2px}
.eyebrow{font-family:var(--mono);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.eyebrow a{color:inherit;text-decoration:none}
.eyebrow a:hover{color:var(--ink)}
.mono{font-family:var(--mono)}

/* masthead */
.mast{display:flex;justify-content:space-between;align-items:baseline;gap:16px;flex-wrap:wrap;padding-block:22px;border-bottom:1px solid var(--rule)}
.mast .brand{font-family:var(--display);font-weight:700;font-size:1.05rem;color:var(--ink);text-decoration:none;letter-spacing:-.01em}
.mast nav{display:flex;gap:18px;font-family:var(--mono);font-size:.84rem}
.mast nav a{color:var(--muted);text-decoration:none}
.mast nav a:hover,.mast nav a[aria-current]{color:var(--ink)}

/* page head */
.hero{padding-block:52px 8px;display:flex;flex-direction:column;gap:18px}
.lede{font-size:1.32rem;line-height:1.5;color:var(--muted)}
.byline{font-family:var(--mono);font-size:.82rem;color:var(--muted)}

/* reading column */
.flow{display:flex;flex-direction:column;gap:1.05em;padding-top:28px}
.flow>*{min-width:0}
.flow h2{margin-top:.8em}
.flow h3,.flow h4{margin-top:.4em}
.flow ul,.flow ol{margin:0;padding-left:1.4em;display:flex;flex-direction:column;gap:.35em}
.flow ul ul,.flow ol ol,.flow ul ol,.flow ol ul{margin-top:.35em}
.flow li>p{margin:0}
.flow blockquote{margin:0;padding:2px 0 2px 18px;border-left:3px solid var(--cobalt);color:var(--muted)}
.flow blockquote p+p{margin-top:.6em}
.flow hr{border:0;border-top:1px solid var(--rule);margin:.5em 0}
.flow img,.flow video{display:block;max-width:100%;height:auto;margin:0 auto;border-radius:10px;border:1px solid var(--rule);background:var(--card)}
.flow figure{margin:0;display:flex;flex-direction:column;gap:10px}
.flow figcaption{font-family:var(--mono);font-size:.84rem;color:var(--muted);line-height:1.5;text-align:center}
.flow iframe{display:block;width:100%;aspect-ratio:16/9;border:0;border-radius:8px;background:#000}
.flow pre{margin:0;padding:16px 18px;background:var(--code-bg);border:1px solid var(--rule);border-radius:10px;overflow-x:auto;font-family:var(--code);font-size:.78rem;line-height:1.55}
.flow pre code{background:none;padding:0;font-size:inherit}
.flow .tbl-wrap{overflow-x:auto;border:1px solid var(--rule);border-radius:10px;background:var(--card)}
.flow table{border-collapse:collapse;width:100%;font-size:.9rem;min-width:420px}
.flow th,.flow td{padding:8px 12px;text-align:left;border-bottom:1px solid var(--rule);vertical-align:top;line-height:1.4}
.flow th{font-family:var(--mono);font-size:.7rem;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.07em}
.flow tr:last-child td{border-bottom:0}
.flow .alignleft{float:left;margin:4px 20px 8px 0;max-width:45%}
.flow .alignright{float:right;margin:4px 0 8px 20px;max-width:45%}
.flow .clear{clear:both}

/* post lists */
.year{display:grid;grid-template-columns:5.5rem minmax(0,1fr);gap:16px;align-items:baseline;padding-block:24px;border-top:1px solid var(--rule)}
.year:first-of-type{border-top:0}
/* baseline-aligned, then nudged up so the small caps centre on the title's caps (optical alignment) */
.year h2{font-family:var(--mono);font-size:.84rem;font-weight:600;color:var(--muted);letter-spacing:.08em;line-height:1.3;position:relative;top:-2px}
.year h2 a{color:inherit;text-decoration:none}
.year h2 a:hover{color:var(--ink)}
.posts{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.posts li{display:flex;justify-content:space-between;gap:14px;align-items:baseline}
.posts li a{flex:1 1 auto;min-width:0}
.posts time{flex:none}
.posts a{font-family:var(--display);font-weight:600;font-size:1.12rem;line-height:1.3;color:var(--ink);text-decoration:none}
.posts a:hover{color:var(--cobalt)}
.posts time{font-family:var(--mono);font-size:.78rem;color:var(--muted);white-space:nowrap;font-variant-numeric:tabular-nums}
@media (max-width:560px){.year{grid-template-columns:minmax(0,1fr);gap:10px}}

/* post footer */
.post-foot{margin-top:64px;padding-top:20px;border-top:1px solid var(--rule);display:flex;flex-direction:column;gap:18px}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pager a{display:flex;flex-direction:column;gap:4px;text-decoration:none;color:var(--ink);min-width:0}
.pager a:last-child{text-align:right;align-items:flex-end}
.pager .lbl{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.pager .ttl{font-family:var(--display);font-weight:600;font-size:1rem;line-height:1.3}
.pager a:hover .ttl{color:var(--cobalt)}
.tags{display:flex;gap:6px;flex-wrap:wrap}
.tag{display:inline-block;font-family:var(--mono);font-size:.72rem;padding:3px 9px;border-radius:99px;background:var(--cobalt-soft);color:var(--cobalt);text-decoration:none}
.site-foot{font-family:var(--mono);font-size:.78rem;color:var(--muted);line-height:1.7;border-top:1px solid var(--rule);padding-top:20px;margin-top:64px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.site-foot a{color:inherit}
@media (max-width:560px){body{font-size:1.08rem}.hero{padding-top:36px}.lede{font-size:1.16rem}}

/* newsletter signup */
.subscribe{margin-top:56px;padding:24px;border:1px solid var(--rule);border-radius:12px;background:var(--card);display:flex;flex-direction:column;gap:8px}
.subscribe h2{font-size:1.35rem}
.sub-lede{color:var(--muted);font-size:1rem;line-height:1.5}
.sub-form{display:flex;gap:8px;margin-top:8px;flex-wrap:wrap}
.sub-form input[type=email]{flex:1 1 14rem;min-width:0;font:400 1rem var(--mono);color:var(--ink);background:var(--paper);border:1px solid var(--rule);border-radius:8px;padding:10px 12px}
.sub-form input[type=email]:focus{outline:2px solid var(--cobalt);outline-offset:1px;border-color:var(--cobalt)}
.sub-form button{font:600 .92rem var(--mono);color:var(--paper);background:var(--cobalt);border:1px solid var(--cobalt);border-radius:8px;padding:10px 18px;cursor:pointer}
.sub-form button:hover{filter:brightness(1.08)}
.sub-hp{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.sub-error{color:var(--signal);font-family:var(--mono);font-size:.9rem}