/* Synapse blog. Same system as the landing page: one ink on paper, orange only for live state. */
:root, [data-theme="signal"] { --paper: #F1EFE9; --ink: #16130F; --sig: #FF4400; --on-ink: #F1EFE9; --blend: multiply; --grain: .22; }
[data-theme="night"] { --paper: #0B0B0B; --ink: #EDEDEA; --sig: #7BE36F; --on-ink: #0B0B0B; --blend: overlay; --grain: .14; }
:root {
  --ink-2: color-mix(in srgb, var(--ink) 62%, var(--paper));
  --ink-3: color-mix(in srgb, var(--ink) 40%, var(--paper));
  --rule: color-mix(in srgb, var(--ink) 20%, var(--paper));
  --wash: color-mix(in srgb, var(--ink) 5%, var(--paper));
  --display: 'Big Shoulders Display', 'Arial Narrow', sans-serif;
  --mono: 'Fragment Mono', ui-monospace, Menlo, monospace;
  --sans: 'Geist', system-ui, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--paper); color: var(--ink); font: 400 17px/1.65 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
::selection { background: var(--ink); color: var(--paper); }
:focus-visible { outline: 1px solid var(--ink); outline-offset: 3px; }
.wrap { max-width: 1320px; margin: 0 auto; border-left: 1px solid var(--rule); border-right: 1px solid var(--rule); }

nav { position: sticky; top: 0; z-index: 20; background: var(--paper); border-bottom: 1px solid var(--rule); font-family: var(--mono); }
nav .wrap { display: flex; align-items: stretch; height: 52px; border: 0; }
.brand { display: flex; align-items: center; gap: 10px; padding: 0 20px; border-right: 1px solid var(--rule); font: 500 26px/1 var(--display); text-transform: uppercase; text-decoration: none; }
.crumb { display: flex; align-items: center; padding: 0 16px; border-right: 1px solid var(--rule); font-size: 11.5px; text-transform: uppercase; color: var(--ink-2); text-decoration: none; }
.crumb:hover { background: var(--wash); }
nav .right { margin-left: auto; display: flex; align-items: center; gap: 8px; padding: 0 12px; }
.btn { display: inline-flex; align-items: center; height: 32px; padding: 0 12px; font: 11.5px var(--mono); text-transform: uppercase; letter-spacing: .03em; border: 1px solid var(--ink); background: none; color: var(--ink); cursor: pointer; text-decoration: none; transition: background-color .15s ease-out, color .15s ease-out; }
.btn:hover, .btn.solid { background: var(--ink); color: var(--on-ink); }
.btn.solid:hover { background: none; color: var(--ink); }
.btn.ghost { border-color: var(--rule); }
.mode { width: 32px; justify-content: center; padding: 0; font-size: 14px; }

header.post { padding: 72px 28px 48px; border-bottom: 1px solid var(--rule); }
.lbl { font: 11.5px var(--mono); text-transform: uppercase; letter-spacing: .04em; color: var(--ink-2); }
header.post h1 { font: 300 clamp(56px, 8vw, 128px)/.86 var(--display); text-transform: uppercase; margin-top: 20px; max-width: 14ch; }
header.post h1 .vs { color: var(--ink-3); }
header.post .dek { max-width: 680px; margin-top: 24px; font-size: 19px; color: var(--ink-2); text-wrap: pretty; }
.meta { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 28px; font: 11.5px var(--mono); text-transform: uppercase; color: var(--ink-3); }

.body { display: grid; grid-template-columns: 260px minmax(0, 1fr); }
.toc { border-right: 1px solid var(--rule); padding: 32px 20px; font: 12px/1.5 var(--mono); }
.toc > div { position: sticky; top: 84px; }
.toc .lbl { display: block; margin-bottom: 12px; color: var(--ink-3); }
.toc a { display: block; padding: 5px 0; color: var(--ink-2); text-decoration: none; }
.toc a:hover { color: var(--ink); }
article { padding: 40px 48px 80px; max-width: 820px; }
article h2 { font: 300 clamp(40px, 4.4vw, 64px)/.92 var(--display); text-transform: uppercase; margin: 64px 0 18px; scroll-margin-top: 80px; }
article h2:first-child { margin-top: 0; }
article h3 { font: 400 20px/1.3 var(--sans); margin: 32px 0 8px; }
article p, article ul, article ol { margin: 0 0 16px; color: var(--ink-2); }
article strong { font-weight: 400; color: var(--ink); }
article ul, article ol { padding-left: 20px; }
article li { margin-bottom: 6px; }
article li::marker { color: var(--ink-3); }
article a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--ink-3); }
article a:hover { text-decoration-color: var(--ink); }
article code { font: 14px var(--mono); color: var(--ink); background: var(--wash); padding: 1px 5px; }
article pre { margin: 0 0 20px; padding: 18px; background: var(--wash); border: 1px solid var(--rule); font: 13px/1.75 var(--mono); overflow-x: auto; }
article pre code { background: none; padding: 0; font-size: inherit; }
article blockquote { margin: 0 0 20px; padding: 12px 16px; border-left: 2px solid var(--ink); color: var(--ink-2); }
article blockquote p { margin: 0; }
.tl { border: 1px solid var(--ink); padding: 18px 20px; margin-bottom: 28px; }
.tl b { display: block; font: 11.5px var(--mono); text-transform: uppercase; margin-bottom: 8px; }
.tl p { margin: 0; color: var(--ink); }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; margin: 0 0 24px; }
th, td { text-align: left; padding: 10px 12px; border-top: 1px solid var(--rule); vertical-align: top; }
th { font: 10.5px var(--mono); text-transform: uppercase; color: var(--ink-3); font-weight: 400; }
td:first-child { color: var(--ink); }
td { color: var(--ink-2); }
.scroll { overflow-x: auto; }

.cta { border-top: 1px solid var(--rule); text-align: center; padding: 80px 24px; }
.cta h2 { font: 200 clamp(56px, 8vw, 120px)/.86 var(--display); text-transform: uppercase; }
.cta p { margin-top: 18px; color: var(--ink-2); }
.cta .row { margin-top: 24px; display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.cta .btn { height: 40px; }
.more { border-top: 1px solid var(--rule); display: grid; grid-template-columns: repeat(3, 1fr); }
.more a { display: block; padding: 22px; text-decoration: none; border-right: 1px solid var(--rule); border-top: 1px solid var(--rule); }
.more a:hover { background: var(--wash); }
.more a span { display: block; font: 300 32px/.95 var(--display); text-transform: uppercase; margin-top: 6px; }
footer .wrap { display: flex; gap: 24px; padding: 18px 28px; font: 11.5px var(--mono); text-transform: uppercase; color: var(--ink-2); border-top: 1px solid var(--rule); }
footer .r { margin-left: auto; display: flex; gap: 20px; }
footer a { text-decoration: none; }

/* index */
.list { border-top: 1px solid var(--rule); }
.list a { display: grid; grid-template-columns: 1fr 1.3fr 140px; gap: 24px; align-items: baseline; padding: 22px 28px; border-bottom: 1px solid var(--rule); text-decoration: none; }
.list a:hover { background: var(--wash); }
.list h2 { font: 300 clamp(36px, 4vw, 56px)/.9 var(--display); text-transform: uppercase; }
.list p { color: var(--ink-2); font-size: 15.5px; }
.list .k { font: 11px var(--mono); text-transform: uppercase; color: var(--ink-3); text-align: right; }

.grain { position: fixed; inset: -50%; width: 200%; height: 200%; z-index: 90; pointer-events: none; opacity: var(--grain); mix-blend-mode: var(--blend);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .5 0 0 0 0 .5 0 0 0 0 .5 0 0 0 1.5 -.25'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain .8s steps(5) infinite; }
@keyframes grain { 0%,100% { transform: translate(0,0); } 25% { transform: translate(-2%,3%); } 50% { transform: translate(3%,-2%); } 75% { transform: translate(-3%,-3%); } }

@media (max-width: 1000px) {
  .body { grid-template-columns: 1fr; } .toc { display: none; }
  article { padding: 32px 20px 64px; } header.post { padding: 48px 20px 36px; }
  .more { grid-template-columns: 1fr; } .crumb { display: none; } nav .ghost { display: none; }
  .list a { grid-template-columns: 1fr; gap: 6px; padding: 20px; } .list .k { text-align: left; }
}
@media (prefers-reduced-motion: reduce) { .grain { animation: none; } }
header.post h1.long { font-size: clamp(48px, 6vw, 96px); max-width: 18ch; }