/* ---------------------------------------------------------------------------
   Personal site — refined, content-forward, text-heavy.
   Type does the work; chrome stays out of the way.
   Identical between the Zola and Eleventy starters.
--------------------------------------------------------------------------- */

/* ---- Design tokens -------------------------------------------------------- */
:root {
  --font-body: "Atkinson Hyperlegible Next", ui-sans-serif, system-ui,
    -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "Atkinson Hyperlegible Mono", ui-monospace, "SF Mono", Menlo,
    Consolas, "Liberation Mono", monospace;

  --measure: 40rem;       /* reading column ~62ch at this size */
  --step: 1.5rem;         /* base vertical rhythm */

  /* Light (default) — warm paper */
  --bg: #fcfbf8;
  --fg: #1b1a17;
  --muted: #6f6a60;
  --rule: #e7e3d9;
  --code-bg: #f1eee6;
  --link: #1652d6;
  --link-hover: #0b3da8;
  --accent: #c8431d;      /* striking red-orange for contrast */
}

/* OS preference when the visitor hasn't chosen explicitly */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg: #161512;
    --fg: #e9e5da;
    --muted: #968f80;
    --rule: #2b2924;
    --code-bg: #211f1a;
    --link: #7fb0ff;
    --link-hover: #a9c8ff;
    --accent: #ff6a3c;
  }
}

/* Explicit choice via the toggle */
[data-theme="dark"] {
  --bg: #161512;
  --fg: #e9e5da;
  --muted: #968f80;
  --rule: #2b2924;
  --code-bg: #211f1a;
  --link: #7fb0ff;
  --link-hover: #a9c8ff;
  --accent: #ff6a3c;
}

/* ---- Reset-ish ------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0 auto;
  max-width: var(--measure);
  padding: 0 1.25rem 4rem;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 1.1875rem;          /* ~19px */
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Smooth theme swap without animating page load */
body, a, button { transition: background-color .2s ease, color .2s ease; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

/* ---- Links ---------------------------------------------------------------- */
a { color: var(--link); text-decoration: underline; text-underline-offset: 2px;
    text-decoration-thickness: 1px; }
a:hover { color: var(--link-hover); }

/* ---- Header / nav --------------------------------------------------------- */
.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem 1.25rem;
  padding: 2rem 0 1.5rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--rule);
}
.site-brand {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  text-decoration: none;
  margin-right: auto;          /* push nav to the right */
}
.site-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.01em;
}

/* PM brush monogram — P in ink (follows theme), M in accent. */
.brushmark { display: inline-flex; color: var(--fg); flex: none; }
.pm-mark { width: 40px; height: 40px; display: block; }
.pm-m { stroke: var(--accent); }

/* Only the header instance gets a transition name (must be unique per page). */
.site-header .brushmark { view-transition-name: brushmark; }

/* Enlarged mark on the landing page. */
.home-mark { color: var(--fg); margin-bottom: .75rem; }
.home-mark .pm-mark { width: 116px; height: 116px; }

@keyframes ink-in { from { opacity: 0; transform: scale(.92); } to { opacity: 1; transform: scale(1); } }
.brushmark .pm-mark { animation: ink-in .5s ease both; transform-origin: left center; }
@media (prefers-reduced-motion: reduce) { .brushmark .pm-mark { animation: none; } }
.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.1rem;
  font-size: .95rem;
}
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover { color: var(--accent); }

#theme-toggle {
  font: inherit;
  font-size: .95rem;
  color: var(--muted);
  background: none;
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: .1rem .7rem;
  cursor: pointer;
}
#theme-toggle:hover { color: var(--accent); border-color: var(--accent); }

/* ---- Typography in content ----------------------------------------------- */
h1, h2, h3 { line-height: 1.2; font-weight: 700; letter-spacing: -0.015em; }
h1 { font-size: 2rem; margin: 0 0 .5rem; }
h2 { font-size: 1.4rem; margin: 2.5rem 0 .75rem; }
h3 { font-size: 1.15rem; margin: 2rem 0 .5rem; }

.intro h1 { font-size: 2.4rem; }
.lede { font-size: 1.2rem; color: var(--muted); margin: 0 0 1rem; }

.post-meta, time { color: var(--muted); font-size: .9rem; }
.post-meta { margin: 0 0 2rem; }

.prose > * + * { margin-top: var(--step); }
.prose p, .page p { margin: 0 0 var(--step); }
.prose a { font-weight: 500; }

blockquote {
  margin: var(--step) 0;
  padding-left: 1.1rem;
  border-left: 3px solid var(--accent);
  color: var(--muted);
  font-style: italic;
}

hr { border: none; border-top: 1px solid var(--rule); margin: 3rem 0; }

/* ---- Code ----------------------------------------------------------------- */
code, pre { font-family: var(--font-mono); font-size: .9em; }
:not(pre) > code {
  background: var(--code-bg);
  padding: .12em .4em;
  border-radius: 4px;
}
pre {
  background: var(--code-bg);
  padding: 1rem 1.1rem;
  border-radius: 8px;
  overflow-x: auto;
  line-height: 1.5;
}
pre code { background: none; padding: 0; }

/* ---- Entry lists (5 Stars, Tech Notes, home) ------------------------------ */
.entries { list-style: none; padding: 0; margin: 1.5rem 0 0; }
.entries li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: .55rem 0;
  border-bottom: 1px solid var(--rule);
}
.entries li a { text-decoration: none; font-weight: 500; }
.entries li a:hover { color: var(--accent); }
.entries time { white-space: nowrap; }

.post-list h2 { margin-top: 3rem; }

/* ---- Footer --------------------------------------------------------------- */
.site-footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: .9rem;
}
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--accent); }

/* ---- Small screens -------------------------------------------------------- */
@media (max-width: 34rem) {
  body { font-size: 1.0625rem; }
  .intro h1 { font-size: 2rem; }
  .entries li { flex-direction: column; gap: .15rem; }
}

/* ---- Print (clean CV → PDF) ----------------------------------------------- */
@media print {
  :root { --bg: #fff; --fg: #000; --muted: #333; --rule: #ccc; }
  body { max-width: none; font-size: 11pt; padding: 0; }
  .site-nav, #theme-toggle, .site-footer { display: none; }
  .site-header { border: none; margin-bottom: 1rem; padding: 0; }
  a { color: #000; text-decoration: none; }
}

/* ---- View transitions (cross-document) ------------------------------------ */
/* Opt the whole site into smooth cross-fades on same-origin navigation. */
@view-transition { navigation: auto; }

/* Slightly quicker than the default fade. */
::view-transition-old(root),
::view-transition-new(root) { animation-duration: 0.22s; }

/* Anchor the site title so it stays put while the rest of the page changes. */
.site-title { view-transition-name: site-title; }

/* Honor reduced-motion for the transition pseudo-elements too — the global
   `* { transition: none }` rule above does not reach these. */
@media (prefers-reduced-motion: reduce) {
  ::view-transition-group(*),
  ::view-transition-old(*),
  ::view-transition-new(*) { animation: none !important; }
}