/* Conventional layout: full-width header and footer bars, one centered
   container shared by header, content and footer. Tokens: light on :root,
   dark under prefers-color-scheme. */
:root {
  --ground: #F5F7F8;
  --bar: #FFFFFF;
  --ink: #151A1F;
  --muted: #5D6B75;
  --line: #7F8D98;
  --hairline: #D9E0E5;
  --accent: #A3193A;
  --accent-ink: #7E1230;
  --code-bg: #EBEFF1;
  --ok: #1F7A4D;
  --ok-bg: #E4F3EA;
  --open: #6B5A0E;
  --open-bg: #F4EBC8;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ground: #101418;
    --bar: #151A1F;
    --ink: #E7EBEE;
    --muted: #98A4AD;
    --line: #616E79;
    --hairline: #273038;
    --accent: #E8667C;
    --accent-ink: #F28A9B;
    --code-bg: #181E23;
    --ok: #7CD3A2;
    --ok-bg: #16311F;
    --open: #E4C86A;
    --open-bg: #332B10;
  }
}

* { box-sizing: border-box; }
html { font-size: 17px; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--ground); color: var(--ink); font-family: var(--sans); line-height: 1.55; }
.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: var(--ground); padding: 8px 12px; }
.skip:focus { left: 12px; z-index: 10; }

/* the one container: header, content and footer share it */
.container { max-width: 760px; margin: 0 auto; padding: 0 24px; }

/* header bar */
.site-header { background: var(--bar); border-bottom: 1px solid var(--hairline); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 16px 24px; flex-wrap: wrap; min-height: 60px; padding-top: 12px; padding-bottom: 12px; }
.brand { color: var(--ink); font-weight: 600; font-size: 1.1rem; text-decoration: none; }
.brand:hover { color: var(--accent); }
.site-header nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.site-header nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
.site-header nav a:hover, .site-header nav a:focus-visible { color: var(--accent); }

/* content */
main { padding: 36px 0 56px; }

/* footer bar */
.site-footer { background: var(--bar); border-top: 1px solid var(--hairline); color: var(--muted); font-size: 0.9rem; }
.site-footer .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; padding-top: 18px; padding-bottom: 28px; }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--accent); }

/* type */
h1 { font-size: 1.9rem; line-height: 1.2; letter-spacing: -0.01em; margin: 0 0 0.5em; }
h2 { font-size: 1.3rem; line-height: 1.25; margin: 2em 0 0.6em; padding-top: 0.6em; border-top: 1px solid var(--hairline); }
h3 { font-size: 1.05rem; margin: 1.5em 0 0.4em; }
p, ul, ol, blockquote { margin: 0 0 1em; }
li { margin-bottom: 0.25em; }
a { color: var(--accent); }
a:hover { color: var(--accent-ink); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
em { color: var(--muted); }
strong { font-weight: 600; }
blockquote { border-left: 3px solid var(--hairline); margin-left: 0; padding-left: 16px; color: var(--muted); }
.crumb { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.05em; color: var(--muted); margin: 0 0 0.9em; }
.crumb a { color: var(--muted); text-decoration: none; }
.crumb a:hover, .crumb a:focus-visible { color: var(--accent); text-decoration: underline; }
.thesis { font-size: 1.1rem; color: var(--muted); margin-bottom: 1.6em; }

/* mono: values, dates, code */
code, .eyebrow { font-family: var(--mono); }
code { font-size: 0.86em; }
:not(pre) > code { background: var(--code-bg); padding: 0.1em 0.38em; border-radius: 4px; }
pre { background: var(--code-bg); padding: 14px 16px; border-radius: 6px; overflow-x: auto; line-height: 1.45; margin: 0 0 1.2em; }
pre code { font-size: 0.84rem; background: none; padding: 0; }

/* tables: scroll inside their own box */
.table-wrap { overflow-x: auto; margin: 0 0 1.3em; }
.table-wrap:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
table { border-collapse: collapse; font-size: 0.9rem; margin: 0 0 1.3em; line-height: 1.4; }
.table-wrap > table { margin: 0; }
th, td { border: 1px solid var(--line); padding: 7px 11px; vertical-align: top; text-align: left; }
th { background: var(--code-bg); font-weight: 600; white-space: nowrap; }
td:first-child { white-space: nowrap; }

/* index entries */
.work { margin: 0 0 2em; }
.work h3 { font-size: 1.08rem; font-weight: 600; line-height: 1.3; margin: 0 0 0.3em; }
.work h3 a { color: var(--ink); text-decoration: none; }
.work h3 a:hover, .work h3 a:focus-visible { color: var(--accent); text-decoration: underline; }
.work > p { color: var(--muted); font-size: 0.95rem; margin: 0 0 0.75em; }
.work-meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px 24px; margin: 0; }
.work-meta > div { min-width: 0; }
.work-meta dt { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin: 0 0 3px; }
.work-meta dd { margin: 0; font-size: 0.88rem; line-height: 1.4; overflow-wrap: anywhere; }
table.index td:first-child { white-space: normal; overflow-wrap: anywhere; }
td.none { color: var(--muted); font-style: italic; }

.entry { margin: 0 0 1.5em; }
.entry .eyebrow { display: block; color: var(--muted); font-size: 0.78rem; letter-spacing: 0.05em; margin-bottom: 2px; }
.entry .t { font-weight: 600; font-size: 1.05rem; line-height: 1.3; }
.entry .t a { color: var(--ink); text-decoration: none; }
.entry .t a:hover { color: var(--accent); text-decoration: underline; }
.entry .m { color: var(--muted); font-size: 0.92rem; line-height: 1.45; margin-top: 2px; }
.entry .m a { color: var(--muted); }
.entry .m a:hover { color: var(--accent); }
.chip { display: inline-block; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; padding: 1px 7px; border-radius: 999px; vertical-align: 1px; }
.chip.open { color: var(--open); background: var(--open-bg); }
.chip.fixed { color: var(--ok); background: var(--ok-bg); }

@media (max-width: 640px) {
  html { font-size: 16px; }
  .container { padding: 0 16px; }
  h1 { font-size: 1.55rem; }
}