/* ==========================================================================
   andi.sg — editorial serif. Hand-written, no framework, light + dark.
   ========================================================================== */

:root {
  --paper:   #f5f4f0;
  --ink:     #1f1d1a;
  --muted:   #6b6459;
  --faint:   #8f887c;
  --line:    #e6e0d4;
  --line-2:  #efe9de;
  --accent:  #4a3b30;
  --accent-soft: #6a5445;
  --code-bg: #f3efe6;

  --header-bg:    #f1ede7;
  --header-brand: #4a3b30;
  --header-line:  #e3ddd2;

  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Charter", "Georgia", "Times New Roman", serif;
  --sans:  -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono:  "SFMono-Regular", ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace;

  --measure: 40rem;   /* ~65ch reading column */
  --wide:    52rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:   #17150f;
    --ink:     #ece7db;
    --muted:   #a29b8a;
    --faint:   #837c6d;
    --line:    #2b2820;
    --line-2:  #242118;
    --accent:  #d8c4ad;
    --accent-soft: #c9b199;
    --code-bg: #201d16;
    --header-bg:    #1c1813;
    --header-brand: #cbb9a6;
    --header-line:  #2c261f;
  }
}
:root[data-theme="dark"] {
  --paper:#17150f; --ink:#ece7db; --muted:#a29b8a; --faint:#837c6d;
  --line:#2b2820; --line-2:#242118; --accent:#d8c4ad; --accent-soft:#c9b199; --code-bg:#201d16;
  --header-bg:#1c1813; --header-brand:#cbb9a6; --header-line:#2c261f;
}
:root[data-theme="light"] {
  --paper:#f5f4f0; --ink:#1f1d1a; --muted:#6b6459; --faint:#8f887c;
  --line:#e6e0d4; --line-2:#efe9de; --accent:#4a3b30; --accent-soft:#6a5445; --code-bg:#f3efe6;
  --header-bg:#f1ede7; --header-brand:#4a3b30; --header-line:#e3ddd2;
}

/* --- reset ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }

/* --- layout --------------------------------------------------------------- */
.wrap { width: 100%; max-width: var(--wide); margin: 0 auto; padding: 0 1.5rem; }
.narrow { max-width: var(--measure); }
.site-content { min-height: 60vh; padding-top: 2.5rem; padding-bottom: 4rem; }

/* --- header / nav --------------------------------------------------------- */
.site-header { background: var(--header-bg); border-bottom: 1px solid var(--header-line); }
.nav {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 1rem; padding: 1.15rem 0; flex-wrap: wrap;
}
.brand { font-size: 1.5rem; font-weight: 600; letter-spacing: -0.01em; color: var(--header-brand); }
.brand:hover { text-decoration: none; opacity: 0.72; }
.nav-links { display: flex; gap: 1.4rem; align-items: baseline; }
.nav-links a {
  font-family: var(--sans); font-size: 0.74rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--muted);
}
.nav-links a:hover, .nav-links a.active { color: var(--header-brand); text-decoration: none; }

/* --- home: intro + featured ----------------------------------------------- */
.intro { max-width: var(--measure); margin-bottom: 2.75rem; }
.intro p, .intro span { color: var(--muted); font-size: 1.05rem; margin: 0; }

.kicker {
  font-family: var(--serif); font-style: italic; font-size: 0.95rem;
  color: var(--faint); margin: 0 0 0.4rem;
}
.feature { margin: 0 0 2.5rem; }
.feature h2 { font-size: 2.1rem; line-height: 1.12; margin: 0 0 0.7rem; font-weight: 600; text-wrap: balance; }
.feature h2 a { color: var(--ink); }
.feature h2 a:hover { color: var(--accent); text-decoration: none; }
.feature .lead { font-size: 1.1rem; color: var(--muted); margin: 0 0 0.7rem; max-width: var(--measure); }

.section-label {
  font-family: var(--sans); font-size: 0.72rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--faint);
  border-bottom: 1px solid var(--line); padding-bottom: 0.6rem; margin: 0 0 1.75rem;
}

/* --- post list ------------------------------------------------------------ */
.post-list { display: flex; flex-direction: column; gap: 2rem; }
.post-item h3 { font-size: 1.4rem; line-height: 1.2; margin: 0 0 0.3rem; font-weight: 600; }
.post-item h3 a { color: var(--ink); }
.post-item h3 a:hover { color: var(--accent); text-decoration: none; }
.post-item .excerpt { font-size: 1.02rem; color: var(--muted); margin: 0 0 0.4rem; max-width: var(--measure); }
.byline {
  font-family: var(--sans); font-size: 0.76rem; color: var(--faint);
  letter-spacing: 0.02em; display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center;
}
.byline .sep { opacity: 0.5; }
.byline a { color: var(--faint); }
.byline a:hover { color: var(--accent); }

/* --- pagination ----------------------------------------------------------- */
.pagination {
  display: flex; gap: 0.5rem; align-items: center; justify-content: center;
  margin-top: 3.5rem; font-family: var(--sans); font-size: 0.85rem;
  list-style: none; padding: 0;
}
.pagination a, .pagination span {
  padding: 0.35rem 0.7rem; border: 1px solid var(--line); border-radius: 4px; color: var(--muted);
}
.pagination a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.pagination .current { background: var(--accent); border-color: var(--accent); color: var(--paper); }
.pagination .disabled { opacity: 0.4; }

/* --- article -------------------------------------------------------------- */
.article-header { max-width: var(--measure); margin: 0 auto 2.25rem; }
.article-header .cats {
  font-family: var(--sans); font-size: 0.72rem; letter-spacing: 0.1em;
  text-transform: uppercase; margin: 0 0 0.75rem;
}
.article-header h1 { font-size: 2.5rem; line-height: 1.1; margin: 0 0 1rem; font-weight: 600; text-wrap: balance; }
.article-header .meta { font-family: var(--sans); font-size: 0.82rem; color: var(--muted); }
.article-hero { max-width: var(--wide); margin: 0 auto 2.5rem; }
.article-hero img { width: 100%; border-radius: 2px; }

.article { max-width: var(--measure); margin: 0 auto; }
.article > * + * { margin-top: 1.4rem; }
.article h2 { font-size: 1.65rem; margin-top: 2.6rem; line-height: 1.2; font-weight: 600; }
.article h3 { font-size: 1.3rem; margin-top: 2rem; font-weight: 600; }
.article p { margin: 0; }
.article a { text-decoration: underline; text-underline-offset: 2px; text-decoration-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.article ul, .article ol { padding-left: 1.4rem; }
.article li + li { margin-top: 0.35rem; }
.article img { border-radius: 2px; margin: 1.6rem auto; }
.article blockquote {
  margin: 1.8rem 0; padding: 0.2rem 0 0.2rem 1.4rem;
  border-left: 3px solid var(--accent); color: var(--muted); font-style: italic;
}
.article blockquote p { margin: 0.4rem 0; }

/* code */
.article code, .byline code {
  font-family: var(--mono); font-size: 0.85em;
  background: var(--code-bg); padding: 0.12em 0.4em; border-radius: 4px;
}
.article pre {
  background: var(--code-bg); border: 1px solid var(--line);
  border-radius: 4px; padding: 1rem 1.15rem; overflow-x: auto; font-size: 0.9rem; line-height: 1.55;
}
.article pre code { background: none; padding: 0; font-size: 0.86rem; }

/* tables */
.article table {
  width: 100%; border-collapse: collapse; font-family: var(--sans);
  font-size: 0.9rem; display: block; overflow-x: auto;
}
.article th, .article td { padding: 0.55rem 0.8rem; border-bottom: 1px solid var(--line); text-align: left; }
.article th { font-weight: 600; border-bottom: 2px solid var(--line); }
.article tbody tr:hover { background: var(--line-2); }

/* --- tags on article ------------------------------------------------------ */
.tag-row { max-width: var(--measure); margin: 2.5rem auto 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tag {
  font-family: var(--sans); font-size: 0.74rem; letter-spacing: 0.02em;
  color: var(--muted); border: 1px solid var(--line); border-radius: 3px; padding: 0.2rem 0.7rem;
}
.tag:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

/* --- prev / next ---------------------------------------------------------- */
.prevnext {
  max-width: var(--measure); margin: 3rem auto 0; padding-top: 1.5rem;
  border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 1rem;
  font-family: var(--sans); font-size: 0.85rem;
}
.prevnext a { color: var(--ink); max-width: 48%; }
.prevnext a:hover { color: var(--accent); text-decoration: none; }
.prevnext .nxt { text-align: right; margin-left: auto; }
.prevnext small { display: block; color: var(--faint); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em; }

/* --- generic page --------------------------------------------------------- */
.page { max-width: var(--measure); margin: 0 auto; }
.page-title { font-size: 2.2rem; font-weight: 600; margin: 0 0 1.5rem; text-wrap: balance; }
.page > * + *, .page-content > * + * { margin-top: 1.3rem; }
.page-content h2 { font-size: 1.5rem; margin-top: 2.2rem; font-weight: 600; }
.page-content h3 { font-size: 1.2rem; margin-top: 1.8rem; font-weight: 600; }
.page-content table { width: 100%; border-collapse: collapse; font-family: var(--sans); font-size: 0.88rem; display: block; overflow-x: auto; }
.page-content th, .page-content td { padding: 0.5rem 0.75rem; border-bottom: 1px solid var(--line); text-align: left; }
.page-content th { font-weight: 600; border-bottom: 2px solid var(--line); }
.page-content blockquote { margin: 1.5rem 0; padding-left: 1.3rem; border-left: 3px solid var(--accent); color: var(--muted); font-style: italic; }
.page-content pre { background: var(--code-bg); border: 1px solid var(--line); border-radius: 4px; padding: 1rem; overflow-x: auto; font-size: 0.9rem; }
.page-content code { font-family: var(--mono); font-size: 0.85em; background: var(--code-bg); padding: 0.12em 0.4em; border-radius: 4px; }
/* full-bleed banner: sits flush under the header, cropped to a short height */
.page-hero-wrap { width: 100%; margin-top: -2.5rem; margin-bottom: 2.25rem; background: var(--line-2); }
.page-hero { display: block; width: 100%; height: 200px; object-fit: cover; object-position: center 40%; margin: 0; border-radius: 0; }

/* --- archive (search replacement) ---------------------------------------- */
.filters { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0 0 2.5rem; }
.filter-btn {
  font-family: var(--sans); font-size: 0.78rem; letter-spacing: 0.02em;
  background: none; color: var(--muted); border: 1px solid var(--line);
  border-radius: 3px; padding: 0.28rem 0.85rem; cursor: pointer; transition: none;
}
.filter-btn:hover { border-color: var(--accent); color: var(--accent); }
.filter-btn[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--paper); }
.archive-year {
  font-family: var(--sans); font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--faint); margin: 2.25rem 0 1rem; border-bottom: 1px solid var(--line); padding-bottom: 0.5rem;
}
.archive-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.9rem; }
.archive-item { display: flex; gap: 1.1rem; align-items: baseline; }
.archive-item .date {
  font-family: var(--mono); font-size: 0.78rem; color: var(--faint);
  flex: 0 0 3.4rem; font-variant-numeric: tabular-nums;
}
.archive-item .title a { color: var(--ink); font-size: 1.08rem; }
.archive-item .title a:hover { color: var(--accent); text-decoration: none; }
.archive-item.hidden { display: none; }
.archive-empty { color: var(--muted); font-family: var(--sans); font-size: 0.9rem; display: none; }

/* --- categories / tags index --------------------------------------------- */
.taxonomy-group { margin-bottom: 2.75rem; }
.taxonomy-group h2 {
  font-size: 1.3rem; font-weight: 600; margin: 0 0 1rem; text-transform: capitalize;
  border-bottom: 1px solid var(--line); padding-bottom: 0.5rem;
}

/* --- comments ------------------------------------------------------------- */
#comments { max-width: var(--measure); margin: 3rem auto 0; }

/* --- footer --------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--line); padding: 2rem 0; margin-top: 3rem;
  font-family: var(--sans); font-size: 0.82rem; color: var(--muted);
}
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 0.6rem 1.2rem; align-items: center; justify-content: space-between; }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--accent); }

/* --- 404 ------------------------------------------------------------------ */
.notfound { text-align: center; padding: 4rem 0; }
.notfound h1 { font-size: 5rem; margin: 0 0 0.5rem; font-weight: 600; letter-spacing: -0.02em; }

/* --- responsive ----------------------------------------------------------- */
@media (max-width: 640px) {
  body { font-size: 18px; }
  .article-header h1 { font-size: 2rem; }
  .feature h2 { font-size: 1.7rem; }
  .prevnext { flex-direction: column; }
  .prevnext a, .prevnext .nxt { max-width: 100%; text-align: left; margin-left: 0; }
  .page-hero { height: 160px; }
}

/* --- rouge syntax (compact) ---------------------------------------------- */
.highlight .c, .highlight .cm, .highlight .c1, .highlight .cs { color: var(--faint); font-style: italic; }
.highlight .k, .highlight .kd, .highlight .kn, .highlight .kp, .highlight .kr, .highlight .kt { color: var(--accent); }
.highlight .s, .highlight .s1, .highlight .s2, .highlight .sb, .highlight .sc, .highlight .sd, .highlight .se, .highlight .sh, .highlight .si, .highlight .sx, .highlight .sr { color: #6f8b3a; }
:root[data-theme="dark"] .highlight .s, :root[data-theme="dark"] .highlight .s1, :root[data-theme="dark"] .highlight .s2 { color: #a3c265; }
@media (prefers-color-scheme: dark) { .highlight .s, .highlight .s1, .highlight .s2 { color: #a3c265; } }
.highlight .n, .highlight .na, .highlight .nb, .highlight .nc, .highlight .nf, .highlight .nn { color: var(--ink); }
.highlight .mi, .highlight .mf, .highlight .m { color: var(--accent-soft); }
.highlight .o, .highlight .ow, .highlight .p { color: var(--muted); }
.highlight .gp { color: var(--faint); }