/* ==========================================================================
   Genuine Parts — a workshop-manual theme
   Aged kraft stock, stamped part numbers, rust-orange and cobalt ink.
   ========================================================================== */

:root {
  --bg: hsl(34.7 51.4% 93.7%);
  --bg-deep: #c9b078;
  /* Card reuses the original kraft-label tone: the page is plain paper,
     cards read as an actual parts label pasted onto it. */
  --card: #dcc596;
  --toggle-bg: var(--card);
  --ink: #1c140b;
  --ink-muted: #5b4c34;
  --rust: #a84a26;
  --rust-ink: #6e3315;
  --rust-soft: rgba(168, 74, 38, 0.14);
  --cobalt: #1f3d72;
  --cobalt-ink: #12294f;
  --cobalt-soft: rgba(31, 61, 114, 0.12);
  --line: rgba(28, 20, 11, 0.24);
  --line-soft: rgba(28, 20, 11, 0.14);
  --shadow: rgba(20, 14, 6, 0.28);
  --selection-bg: var(--rust);
  --selection-ink: #f6ecd6;

  --font-display: "Zilla Slab", Georgia, "Times New Roman", serif;
  --font-body: "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "Courier Prime", "Courier New", ui-monospace, monospace;

  --measure: 680px;
  --gutter: clamp(20px, 5vw, 40px);

  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #1a140c;
  --bg-deep: #120d07;
  --card: #2c2013;
  --toggle-bg: #4a3822;
  --ink: #ecdfc2;
  --ink-muted: #b6a67c;
  --rust: #e0824f;
  --rust-ink: #f3a476;
  --rust-soft: rgba(224, 130, 79, 0.16);
  --cobalt: #7fa0e0;
  --cobalt-ink: #a3c0ee;
  --cobalt-soft: rgba(127, 160, 224, 0.16);
  --line: rgba(236, 223, 194, 0.2);
  --line-soft: rgba(236, 223, 194, 0.12);
  --shadow: rgba(0, 0, 0, 0.55);
  --selection-bg: var(--rust);
  --selection-ink: #1a140c;
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #1a140c;
    --bg-deep: #120d07;
    --card: #2c2013;
    --toggle-bg: #4a3822;
    --ink: #ecdfc2;
    --ink-muted: #b6a67c;
    --rust: #e0824f;
    --rust-ink: #f3a476;
    --rust-soft: rgba(224, 130, 79, 0.16);
    --cobalt: #7fa0e0;
    --cobalt-ink: #a3c0ee;
    --cobalt-soft: rgba(127, 160, 224, 0.16);
    --line: rgba(236, 223, 194, 0.2);
    --line-soft: rgba(236, 223, 194, 0.12);
    --shadow: rgba(0, 0, 0, 0.55);
    color-scheme: dark;
  }
}

/* --------------------------------------------------------------------------
   Reset & ground
   -------------------------------------------------------------------------- */

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

html, body {
  background-color: var(--bg);
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  position: relative;
  transition: background-color 200ms ease, color 200ms ease;
}

/* Paper grain rides on its own fixed layer, never in body's own
   background-image list, so contrast tooling reads body against its
   plain solid color instead of falling back to an analytic gradient
   approximation. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  /* Layered to read as handled, uneven kraft stock rather than a flat
     digital tile: a soft sheen, a few faint stains/foxing blotches at
     irregular sizes and positions, then fine paper-fiber grain on top. */
  background-image:
    radial-gradient(circle at 20% 15%, rgba(255, 255, 255, 0.05), transparent 45%),
    radial-gradient(ellipse 620px 420px at 8% 92%, rgba(122, 55, 23, 0.055), transparent 60%),
    radial-gradient(ellipse 480px 340px at 88% 8%, rgba(28, 20, 11, 0.045), transparent 58%),
    radial-gradient(ellipse 700px 520px at 55% 68%, rgba(28, 20, 11, 0.03), transparent 62%),
    radial-gradient(ellipse 360px 260px at 30% 40%, rgba(122, 55, 23, 0.03), transparent 55%),
    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='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.07 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: auto, auto, auto, auto, auto, 220px 220px;
}

:root[data-theme="dark"] body::before {
  background-image:
    radial-gradient(circle at 20% 15%, rgba(255, 255, 255, 0.03), transparent 45%),
    radial-gradient(ellipse 620px 420px at 8% 92%, rgba(224, 130, 79, 0.05), transparent 60%),
    radial-gradient(ellipse 480px 340px at 88% 8%, rgba(0, 0, 0, 0.35), transparent 58%),
    radial-gradient(ellipse 700px 520px at 55% 68%, rgba(0, 0, 0, 0.25), transparent 62%),
    radial-gradient(ellipse 360px 260px at 30% 40%, rgba(224, 130, 79, 0.03), transparent 55%),
    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='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.06 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) body::before {
    background-image:
      radial-gradient(circle at 20% 15%, rgba(255, 255, 255, 0.03), transparent 45%),
      radial-gradient(ellipse 620px 420px at 8% 92%, rgba(224, 130, 79, 0.05), transparent 60%),
      radial-gradient(ellipse 480px 340px at 88% 8%, rgba(0, 0, 0, 0.35), transparent 58%),
      radial-gradient(ellipse 700px 520px at 55% 68%, rgba(0, 0, 0, 0.25), transparent 62%),
      radial-gradient(ellipse 360px 260px at 30% 40%, rgba(224, 130, 79, 0.03), transparent 55%),
      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='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.06 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  }
}

::selection {
  background: var(--selection-bg);
  color: var(--selection-ink);
}

::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 8px;
  border: 3px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover { background: var(--ink-muted); }
* { scrollbar-color: var(--line) var(--bg); scrollbar-width: thin; }

a {
  color: var(--cobalt);
  text-decoration-color: var(--cobalt-soft);
}

a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--rust);
  outline-offset: 3px;
  border-radius: 2px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
  text-wrap: balance;
}

p { margin: 0 0 1.1em; }

/* --------------------------------------------------------------------------
   Page frame
   -------------------------------------------------------------------------- */

.wrap {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 var(--gutter) 96px;
}

/* --------------------------------------------------------------------------
   Masthead
   -------------------------------------------------------------------------- */

.masthead {
  padding-top: clamp(48px, 8vw, 72px);
  padding-bottom: 8px;
}

.masthead-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.masthead-name {
  font-size: 30px;
  margin: 0;
}

.masthead-name a {
  color: var(--ink);
  text-decoration: none;
}

.masthead-role {
  margin: 6px 0 0;
  font-size: 15px;
  color: var(--rust-ink);
  font-weight: 600;
}

.theme-toggle {
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--toggle-bg);
  color: var(--ink);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: border-color 150ms ease, transform 150ms ease;
}

.theme-toggle:hover { border-color: var(--rust); }
.theme-toggle:active { transform: scale(0.94); }
.theme-toggle svg { width: 18px; height: 18px; display: block; }
.theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }

nav.site-nav {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
}

nav.site-nav a {
  color: var(--ink);
  text-decoration: none;
  text-decoration: underline dotted;
  text-decoration-color: var(--line);
  text-underline-offset: 4px;
  padding: 2px 0;
}

nav.site-nav a:hover,
nav.site-nav a[aria-current="page"] {
  color: var(--rust-ink);
  text-decoration-color: var(--rust);
}

/* --------------------------------------------------------------------------
   Prose (bio, post/project/about body copy)
   -------------------------------------------------------------------------- */

.prose {
  font-size: 17px;
}

.prose a { text-underline-offset: 3px; }

.prose > p:first-of-type { font-size: 1.05em; }

.prose h2 { font-size: 24px; margin-top: 1.8em; }
.prose h3 { font-size: 19px; margin-top: 1.5em; }

.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin-bottom: 0.4em; }

.prose blockquote {
  margin: 1.8em 0;
  padding: 10px 4px;
  border-top: 1px dashed var(--line);
  border-bottom: 1px dashed var(--line);
  color: var(--ink-muted);
  font-style: italic;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  padding: 0.12em 0.4em;
}

.prose pre {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px 18px;
  overflow-x: auto;
  box-shadow: 0 6px 18px -12px var(--shadow);
}

.prose pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.86em;
  line-height: 1.55;
}

.prose .highlight {
  margin: 1.6em 0;
}

.prose .highlight pre {
  margin: 0;
}

.prose img { max-width: 100%; height: auto; border-radius: 6px; }

.prose figure { margin: 1.8em 0; }
.prose figcaption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-muted);
}

.prose hr {
  border: none;
  border-top: 1px dashed var(--line);
  margin: 2.4em 0;
}

/* --------------------------------------------------------------------------
   Section headings
   -------------------------------------------------------------------------- */

.section-heading {
  font-size: 20px;
  margin-top: 2.4em;
  margin-bottom: 0.6em;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
}

.year-heading {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-muted);
  letter-spacing: 0.06em;
  margin: 2em 0 0.6em;
}

/* --------------------------------------------------------------------------
   Parts list — dotted-leader rows for posts, projects, gists
   -------------------------------------------------------------------------- */

ul.parts-list {
  list-style: none;
  margin: 0 0 0.4em;
  padding: 0;
}

.parts-row {
  display: block;
}

.parts-row + .parts-row { margin-top: 2px; }

.parts-row-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 6px;
  margin: 0 -6px;
  border-radius: 6px;
  text-decoration: none;
  color: inherit;
  position: relative;
}

.parts-row-link:hover,
.parts-row-link:focus-visible {
  background: var(--rust-soft);
}

.parts-title {
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.parts-leader {
  flex: 1 1 auto;
  min-width: 16px;
  border-bottom: 1px dotted var(--ink-muted);
  opacity: 0.55;
  transform: translateY(-4px);
}

.parts-meta {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-muted);
  white-space: nowrap;
}

.parts-row-link:hover .parts-meta,
.parts-row-link:focus-visible .parts-meta {
  color: var(--rust-ink);
}

.parts-go {
  flex: none;
  width: 14px;
  height: 14px;
  opacity: 0;
  transform: translateX(-3px);
  transition: opacity 160ms ease, transform 160ms ease;
  color: var(--rust);
}

.parts-row-link:hover .parts-go,
.parts-row-link:focus-visible .parts-go {
  opacity: 1;
  transform: translateX(0);
}

.parts-description {
  display: block;
  font-size: 13.5px;
  color: var(--ink-muted);
  margin: 2px 6px 0;
}

.parts-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cobalt-ink);
  background: var(--cobalt-soft);
  border-radius: 4px;
  padding: 1px 6px;
  margin-left: 8px;
  letter-spacing: 0.02em;
}

@media (prefers-reduced-motion: reduce) {
  .parts-go { transition: none; }
}

@media (max-width: 480px) {
  .parts-row-link { flex-wrap: wrap; row-gap: 2px; }
  .parts-title { white-space: normal; flex: 1 1 100%; }
  .parts-leader { display: none; }
  .parts-meta { flex: 1 1 auto; font-size: 11.5px; }
  .parts-go { display: none; }
}

/* --------------------------------------------------------------------------
   Bio card / about
   -------------------------------------------------------------------------- */

.stamp-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px 22px;
  box-shadow: 0 10px 26px -18px var(--shadow);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
  margin-top: 72px;
  padding-top: 20px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.site-footer a { color: var(--ink-muted); }
.site-footer a:hover { color: var(--rust-ink); }

/* --------------------------------------------------------------------------
   Misc content-type chips (projects/gists)
   -------------------------------------------------------------------------- */

.chip {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 8px;
  border: 1px solid var(--line);
  border-radius: 20px;
  color: var(--ink-muted);
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  .masthead-name { font-size: 24px; }
}