/* omeganya.ai: a lab notebook. Serif for reading, mono for data and dates, one teal accent; light and dark.
   System fonts only: the site loads nothing from other hosts. */
:root {
  --bg: #fafbfc; --fg: #1b1f24; --muted: #5b6470; --rule: #dde1e6; --panel: #f0f2f5; --accent: #0b6e69;
  --accent-soft: #d9efed; --mark: #fff3bf; --c2: #b45309; --c3: #7c3aed;
  --serif: Charter, "Bitstream Charter", "Sitka Text", Cambria, "Iowan Old Style", Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --measure: 68ch;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #121417; --fg: #e6e8eb; --muted: #9aa3ad; --rule: #2a2f36; --panel: #1b1f24; --accent: #5fd3c6;
          --accent-soft: #163a37; --mark: #4a3f12; --c2: #f59e0b; --c3: #a78bfa; color-scheme: dark; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 1.075rem/1.65 var(--serif);
       padding-inline: max(16px, env(safe-area-inset-left, 0px)) max(16px, env(safe-area-inset-right, 0px)); }
header.site, main, footer.site { max-width: var(--measure); margin-inline: auto; }

header.site { display: flex; flex-wrap: wrap; align-items: baseline; gap: .25rem 1rem; padding-block: 2rem 1.25rem;
              border-bottom: 1px solid var(--rule); font-family: var(--sans); }
.mark { display: inline-flex; align-items: baseline; gap: .4rem; color: var(--fg); text-decoration: none; font-weight: 650;
        font-size: 1.25rem; letter-spacing: -.01em; }
.ears { position: relative; color: var(--accent); font-family: var(--serif); font-size: 1.5rem; line-height: 1; }
.ears::before, .ears::after { content: ""; position: absolute; top: -.32em; width: 0; height: 0;
  border-left: .17em solid transparent; border-right: .17em solid transparent; border-bottom: .3em solid var(--accent); }
.ears::before { left: .04em; transform: rotate(-14deg); }
.ears::after { right: .04em; transform: rotate(14deg); }
.tagline { color: var(--muted); font-size: .9rem; }
nav { margin-left: auto; display: flex; gap: 1rem; font-size: .95rem; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { color: var(--fg); text-decoration: underline; text-underline-offset: .25em; }

main { padding-block: 2rem 3rem; }
h1, h2, h3, h4 { line-height: 1.25; text-wrap: balance; margin: 2.2rem 0 .7rem; }
h1 { font-size: 2rem; margin-top: .5rem; letter-spacing: -.01em; }
h2 { font-size: 1.45rem; }
h3 { font-size: 1.15rem; }
h4 { font-size: 1rem; font-family: var(--sans); text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
p, ul, ol, blockquote, pre, .table, figure { margin: 0 0 1.1rem; }
a { color: var(--accent); text-underline-offset: .18em; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
strong { font-weight: 700; }
mark { background: var(--mark); color: inherit; padding: 0 .15em; }
hr { border: 0; border-top: 1px solid var(--rule); margin: 2.5rem 0; }
ul, ol { padding-left: 1.4rem; }
li + li { margin-top: .3rem; }
li > ul, li > ol { margin: .3rem 0 0; }
blockquote { margin-left: 0; padding: .1rem 0 .1rem 1rem; border-left: 3px solid var(--accent); color: var(--muted); }
blockquote p:last-child { margin-bottom: 0; }

code, pre, time, .meta, .tags, table { font-variant-numeric: tabular-nums; }
code { font-family: var(--mono); font-size: .88em; background: var(--panel); padding: .1em .3em; border-radius: 3px; }
pre { background: var(--panel); padding: .9rem 1rem; border-radius: 6px; overflow-x: auto; line-height: 1.5; }
pre code { background: none; padding: 0; font-size: .86rem; }

.table { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font: .92rem/1.4 var(--sans); }
th, td { padding: .45rem .7rem; border-bottom: 1px solid var(--rule); text-align: left; vertical-align: top; }
th { font-weight: 650; border-bottom: 2px solid var(--fg); white-space: nowrap; }
td { font-variant-numeric: tabular-nums; }

img, svg { max-width: 100%; height: auto; }
figure { margin-inline: 0; }
figcaption { color: var(--muted); font: .88rem/1.4 var(--sans); margin-top: .4rem; }

.meta { display: flex; flex-wrap: wrap; gap: .5rem 1rem; align-items: center; color: var(--muted);
        font: .85rem var(--mono); margin: 0; }
.tags { list-style: none; display: flex; gap: .4rem; padding: 0; margin: 0; }
.tags li { margin: 0; background: var(--accent-soft); color: var(--fg); border-radius: 3px; padding: 0 .4rem; }
.post-head h1 { margin-top: .4rem; }

.posts { list-style: none; padding: 0; margin: 1rem 0 0; border-top: 1px solid var(--rule); }
.posts li { display: grid; grid-template-columns: 9.5rem 1fr; gap: .2rem 1rem; padding: .9rem 0; margin: 0;
            border-bottom: 1px solid var(--rule); }
.posts time { color: var(--muted); font: .85rem/1.9 var(--mono); }
.posts a { font-weight: 650; }
.posts p { grid-column: 2; margin: 0; color: var(--muted); font-size: .95rem; }
.empty { color: var(--muted); font-style: italic; }
.banner { background: var(--mark); padding: .5rem .8rem; border-radius: 4px; font: .9rem var(--sans); }
.lede { font-size: 1.2rem; line-height: 1.55; }

footer.site { border-top: 1px solid var(--rule); padding-block: 1.25rem 2.5rem; color: var(--muted); font: .85rem/1.6 var(--sans); }
footer.site p { margin: 0 0 .3rem; }

@media (max-width: 34rem) {
  .posts li { grid-template-columns: 1fr; }
  .posts p { grid-column: 1; }
  nav { margin-left: 0; width: 100%; }
}

/* charts drawn as inline SVG in posts */
svg.chart { display: block; width: 100%; height: auto; font-family: var(--sans); }
svg.chart .grid { stroke: var(--rule); stroke-width: 1; }
svg.chart .tick, svg.chart .label { fill: var(--muted); font-size: 12px; }
svg.chart .label { fill: var(--fg); }
svg.chart .ref { fill: none; stroke: var(--muted); stroke-width: 1.5; stroke-dasharray: 5 4; }
svg.chart .ref-label { fill: var(--muted); font-size: 12px; font-style: italic; }
svg.chart .pt { stroke: var(--bg); stroke-width: 1; }
svg.chart .dense { fill: var(--accent); }
svg.chart .gemma { fill: var(--c2); }
svg.chart .moe { fill: var(--c3); }
.key { display: inline-block; width: .7em; height: .7em; border-radius: 50%; vertical-align: baseline; }
.key.dense { background: var(--accent); } .key.gemma { background: var(--c2); } .key.moe { background: var(--c3); }