/* ============================================================
   Personal site — stylesheet
   Type: Literata (writing) / Archivo (site machinery) / JetBrains Mono (time)
   ============================================================ */

:root {
  --paper:       #F7F7F4;
  --paper-raise: #FFFFFF;
  --ink:         #17181B;
  --ink-soft:    #55585C;
  --ink-faint:   #8A8D8F;
  --rule:        #E2E2DC;
  --accent:      #2438A8;
  --ghost:       #E6E6DF;

  --font-read: "Literata", Georgia, "Times New Roman", serif;
  --font-ui:   "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-time: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --measure: 34rem;
  --page:    46rem;
  --gutter:  clamp(1.25rem, 5vw, 2.5rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:       #121316;
    --paper-raise: #17181B;
    --ink:         #EDEDE8;
    --ink-soft:    #A7AAA6;
    --ink-faint:   #74777A;
    --rule:        #2A2C30;
    --accent:      #93A8FF;
    --ghost:       #212327;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-read);
  font-size: 1.0625rem;
  line-height: 1.72;
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
}

@media (min-width: 40rem) {
  body { font-size: 1.125rem; }
}

.wrap {
  max-width: var(--page);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

.masthead {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1.5rem;
  padding-block: 2.5rem 3.5rem;
}

.wordmark {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
  margin-right: auto;
}

.wordmark:hover { color: var(--accent); }

.nav {
  display: flex;
  gap: 1.25rem;
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  letter-spacing: 0.01em;
}

.nav a {
  color: var(--ink-soft);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

/* ---------- Intro ------------------------------------------- */

.intro {
  max-width: var(--measure);
  padding-bottom: 3.5rem;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 3rem;
}

.intro p {
  margin: 0;
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--ink);
  text-wrap: pretty;
}

.intro p + p {
  margin-top: 1rem;
  font-size: 1rem;
  color: var(--ink-soft);
}

/* ---------- Archive: the year rail -------------------------- */
/* The year sticks in the margin while its posts scroll past.
   Gaps between years stay visible — an honest record of a
   site that gets written in bursts. */

.year-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
  padding-bottom: 3.25rem;
}

@media (min-width: 46rem) {
  .year-block {
    grid-template-columns: 6.5rem 1fr;
    gap: 0;
  }
}

.year-marker {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: clamp(1.75rem, 6vw, 2.75rem);
  line-height: 1;
  letter-spacing: -0.035em;
  color: var(--ghost);
  font-variant-numeric: tabular-nums;
  user-select: none;
}

@media (min-width: 46rem) {
  .year-marker {
    position: sticky;
    top: 2rem;
    align-self: start;
    padding-top: 0.15em;
  }
}

.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.post-list > li {
  padding-block: 1.15rem;
  border-top: 1px solid var(--rule);
}

.post-list > li:first-child { border-top: none; padding-top: 0.25rem; }

.post-link {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  text-decoration: none;
  color: inherit;
}

.post-date {
  flex: none;
  width: 3.75rem;
  font-family: var(--font-time);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding-top: 0.35em;
}

.post-title {
  font-size: 1.0625rem;
  line-height: 1.4;
  font-weight: 500;
  background-image: linear-gradient(var(--accent), var(--accent));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: background-size 220ms ease;
  text-wrap: balance;
}

.post-link:hover .post-title,
.post-link:focus-visible .post-title {
  color: var(--accent);
  background-size: 100% 1px;
}

.post-summary {
  margin: 0.35rem 0 0 4.65rem;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: var(--measure);
  text-wrap: pretty;
}

@media (max-width: 30rem) {
  .post-link { flex-direction: column; gap: 0.25rem; }
  .post-date { padding-top: 0; width: auto; }
  .post-summary { margin-left: 0; }
}

/* ---------- Single post ------------------------------------- */

.post-header {
  max-width: var(--measure);
  margin-bottom: 2.5rem;
}

.post-header h1 {
  font-size: clamp(1.75rem, 4.5vw, 2.375rem);
  line-height: 1.18;
  font-weight: 600;
  letter-spacing: -0.018em;
  margin: 0 0 0.75rem;
  text-wrap: balance;
}

.post-meta {
  font-family: var(--font-time);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.prose {
  max-width: var(--measure);
}

.prose > * + * { margin-top: 1.35em; }

.prose h2 {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 2.75em;
  margin-bottom: -0.5em;
}

.prose h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-top: 2em;
  margin-bottom: -0.6em;
}

.prose a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 1px;
}

.prose a:hover { color: var(--accent); background: color-mix(in srgb, var(--accent) 7%, transparent); }

.prose blockquote {
  margin-inline: 0;
  padding-left: 1.25rem;
  border-left: 2px solid var(--rule);
  color: var(--ink-soft);
  font-style: italic;
}

.prose img { max-width: 100%; height: auto; display: block; border-radius: 2px; }

.prose figure { margin-inline: 0; }
.prose figcaption {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  color: var(--ink-faint);
  margin-top: 0.6rem;
}

.prose code {
  font-family: var(--font-time);
  font-size: 0.85em;
  background: var(--ghost);
  padding: 0.15em 0.35em;
  border-radius: 3px;
}

.prose pre {
  font-family: var(--font-time);
  font-size: 0.8125rem;
  line-height: 1.6;
  background: var(--paper-raise);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 1rem 1.1rem;
  overflow-x: auto;
}

.prose pre code { background: none; padding: 0; font-size: inherit; }

.prose hr {
  border: none;
  border-top: 1px solid var(--rule);
  margin-block: 2.5em;
}

.prose ul, .prose ol { padding-left: 1.25rem; }
.prose li + li { margin-top: 0.4em; }

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}
.prose th, .prose td {
  text-align: left;
  padding: 0.55rem 0.75rem 0.55rem 0;
  border-bottom: 1px solid var(--rule);
}
.prose th { font-family: var(--font-ui); font-size: 0.8125rem; font-weight: 600; }

/* ---------- Post footer nav --------------------------------- */

.post-nav {
  max-width: var(--measure);
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  font-family: var(--font-ui);
  font-size: 0.875rem;
}

.post-nav a { color: var(--ink-soft); text-decoration: none; max-width: 15rem; }
.post-nav a:hover { color: var(--accent); }
.post-nav .label {
  display: block;
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.2rem;
}
.post-nav .next { text-align: right; margin-left: auto; }

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

.footer {
  margin-top: 5rem;
  padding-block: 1.75rem 3rem;
  border-top: 1px solid var(--rule);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  color: var(--ink-faint);
}

.footer a { color: var(--ink-soft); text-decoration: none; }
.footer a:hover { color: var(--accent); }
.footer .spacer { margin-left: auto; }

/* ---------- Quality floor ----------------------------------- */

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0.6rem 1rem;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  z-index: 10;
}
.skip-link:focus { left: 0.5rem; top: 0.5rem; }

.year-block, .intro, .post-header, .prose {
  animation: rise 500ms cubic-bezier(0.16, 1, 0.3, 1) backwards;
}
.year-block:nth-of-type(2) { animation-delay: 60ms; }
.year-block:nth-of-type(3) { animation-delay: 120ms; }

@keyframes rise {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}