/* ── Tokens ─────────────────────────────────────────────── */
:root {
  --bg:      #ffffff;
  --ink:     #0a0a0a;
  --ink-2:   #444444;
  --ink-3:   #aaaaaa;
  --border:  #e0e0e0;
  --accent:  #e00000;
  /* Single font for everything — Newsreader covers display, prose, UI */
  --serif:   'Newsreader', Georgia, 'Times New Roman', serif;
  --mono:    'IBM Plex Mono', 'Courier New', monospace;
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 17px; -webkit-font-smoothing: antialiased; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
}
img { max-width: 100%; height: auto; display: block; }

/* No underlines anywhere, ever — nuclear option */
a,
a:link,
a:visited,
a:hover,
a:active,
a:focus {
  color: inherit;
  text-decoration: none !important;
  -webkit-text-decoration: none !important;
}

/* Override for prose body links only */
.post-body a,
.post-body a:link,
.post-body a:visited {
  color: var(--accent);
  text-decoration: none !important;
  border-bottom: 1px solid rgba(224,0,0,0.3);
}
.post-body a:hover { border-bottom-color: var(--accent); }

/* ── Header ──────────────────────────────────────────────── */
.site-header {
  border-bottom: 4px solid var(--ink);
  padding: 1.1rem 1.5rem 0.8rem;
  position: relative;
}

.site-logo {
  font-family: var(--serif);
  font-size: 2.6rem;
  font-weight: 600;
  font-style: italic;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--ink);
  display: block;
}

.site-sub {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.35rem;
  padding-top: 0.35rem;
  border-top: 1px solid var(--ink);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #555;
}
.site-sub s {
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
}

/* ── Main / Footer ───────────────────────────────────────── */
.site-main { flex: 1; }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.2rem 1.5rem;
}
.site-footer span {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ── Section label ───────────────────────────────────────── */
.sec-label {
  font-family: var(--mono);
  font-size: 0.57rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.sec-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── Post listing ────────────────────────────────────────── */
.post-list-wrap { padding: 1.4rem 1.5rem; }
.post-list { list-style: none; }

.post-row {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 0 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--border);
  cursor: pointer;
  color: inherit;
  text-decoration: none;
}
.post-row:last-child { border-bottom: 1px solid var(--border); }
.post-row:hover .post-row-title { color: var(--accent); }

.post-row-date {
  font-family: var(--mono);
  font-size: 0.6rem;
  line-height: 1.5;
  color: var(--ink-3);
  padding-top: 0.15rem;
}

.post-row-title {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
  margin-bottom: 0.25rem;
  transition: color 0.1s;
  text-decoration: none;
}

.post-row-summary {
  font-family: var(--serif);
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--ink-2);
  margin-bottom: 0.4rem;
}

/* ── Tags ────────────────────────────────────────────────── */
.tags { display: flex; gap: 0.35rem; flex-wrap: wrap; }
.tag {
  font-family: var(--mono);
  font-size: 0.54rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--ink);
  padding: 0.08rem 0.4rem;
  color: var(--ink);
  text-decoration: none;
}
.tag-red {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ── Post page ───────────────────────────────────────────── */
.post-wrap {
  padding: 1.4rem 1.5rem 4rem;
  max-width: 720px;
  margin-inline: auto;   /* centered */
}

.back-link {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: inline-block;
  margin-bottom: 1rem;
  transition: color 0.12s;
  text-decoration: none;
}
.back-link:hover { color: var(--accent); }

.post-cat {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.post-cat::before {
  content: '';
  display: inline-block;
  width: 1.2rem;
  height: 2px;
  background: var(--accent);
}

.post-h1 {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-bottom: 0.6rem;
}

.post-lede {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1rem;
  line-height: 1.65;
  color: #333;
  border-left: 3px solid var(--accent);
  padding-left: 0.8rem;
  margin: 0.8rem 0 1rem;
}

/* Thumbnail — full width, no crop, no border */
.post-thumb {
  width: 100%;
  margin-bottom: 1.4rem;
  position: relative;
  overflow: hidden;
  background: var(--ink);
}
.post-thumb img {
  width: 100%;
  height: auto;
  display: block;
  /* no filter, no crop, full image */
}
/* placeholder when no image */
.post-thumb-placeholder {
  width: 100%;
  height: 180px;
  background: var(--ink);
  position: relative;
  overflow: hidden;
}
.thumb-halftone {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.18) 1px, transparent 1px);
  background-size: 5px 5px;
}
.thumb-scanlines {
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 3px,
    rgba(255,255,255,0.03) 3px, rgba(255,255,255,0.03) 4px
  );
}
.thumb-stamp {
  position: absolute;
  bottom: 0.5rem; left: 0.5rem;
  font-family: var(--mono);
  font-size: 0.5rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
}

/* ── Post body prose ─────────────────────────────────────── */
.post-body {
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.82;
  color: var(--ink);
  margin-top: 1.4rem;
}

.post-body > * + * { margin-top: 1.25em; }

.post-body h2,
.post-body h3,
.post-body h4 {
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--ink);
  margin-top: 2em;
  margin-bottom: 0.35em;
  /* kill the ¶ permalink anchor */
}
.post-body h2 { font-size: 1.45rem; }
.post-body h3 { font-size: 1.2rem; }
.post-body h4 { font-size: 1rem; font-weight: 600; }

/* kill the headerlink ¶ anchors python-markdown generates */
.post-body .headerlink { display: none !important; }

.post-body a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(224,0,0,0.3);
  transition: border-color 0.15s;
}
.post-body a:hover { border-bottom-color: var(--accent); }

.post-body strong { font-weight: 700; }
.post-body em { font-style: italic; }

.post-body ul,
.post-body ol { padding-left: 1.4rem; }
.post-body li + li { margin-top: 0.25em; }

.post-body blockquote {
  border-left: 3px solid var(--accent);
  padding: 0.5rem 1rem;
  color: #333;
  font-style: italic;
  margin-inline: 0;
}
.post-body blockquote p { margin: 0; }

.post-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin-block: 2em;
}

/* ── Summer / Bright Light syntax theme ─────────────────────
   White bg, vivid saturated token colors, high contrast.
   Inspired by VS Code Light Modern + Tokyo Light
   ─────────────────────────────────────────────────────────── */

/* inline code */
.post-body code {
  font-family: var(--mono);
  font-size: 0.83em;
  background: #ffffff;
  border: 1px solid #d0d7de;
  padding: 0.1em 0.35em;
  color: #0a0a0a;
}

/* code blocks */
.post-body pre {
  background: #ffffff;
  border: 1px solid #d0d7de;
  border-left: 3px solid #d0d7de;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  margin-block: 1.6em;
  position: relative;
}
.post-body pre code {
  font-family: var(--mono);
  font-size: 0.8rem;
  line-height: 1.7;
  background: transparent;
  border: none;
  padding: 0;
  color: #0a0a0a;
}

/* ── Summer Light syntax tokens ──────────────────────────── */
.hljs                      { background: transparent; color: #0a0a0a; }

/* comments — muted gray, italic */
.hljs-comment,
.hljs-quote                { color: #8b949e; font-style: italic; }

/* keywords — vivid violet/purple */
.hljs-keyword,
.hljs-selector-tag,
.hljs-built_in             { color: #8250df; font-weight: 500; }

/* strings — rich teal */
.hljs-string,
.hljs-addition             { color: #0a7ea4; }

/* numbers — hot orange */
.hljs-number,
.hljs-literal,
.hljs-symbol,
.hljs-bullet               { color: #e06c00; }

/* functions — vivid blue */
.hljs-title,
.hljs-title.function_,
.hljs-title.class_         { color: #0550ae; font-weight: 500; }

/* attributes / variables — electric teal-green */
.hljs-attr,
.hljs-variable,
.hljs-template-variable    { color: #116329; }

/* types — deep magenta */
.hljs-type,
.hljs-class                { color: #953800; }

/* tags / names */
.hljs-name,
.hljs-selector-id,
.hljs-selector-class       { color: #116329; }

/* meta / decorators */
.hljs-meta                 { color: #6e7781; }

/* operators, punctuation — near black, readable */
.hljs-operator,
.hljs-punctuation          { color: #24292f; }

/* deletion — red */
.hljs-deletion             { color: #cf222e; background: #ffebe9; }

/* copy button */
.copy-btn {
  position: absolute;
  top: 0.5rem; right: 0.5rem;
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: #e1e4e8;
  color: #6a737d;
  border: 1px solid #d1d5da;
  padding: 0.18rem 0.5rem;
  cursor: pointer;
  transition: color 0.12s, background 0.12s;
}
.copy-btn:hover { background: #d1d5da; color: #24292e; }
.copy-btn.copied { color: #22863a; border-color: #22863a; background: #f0fff4; }

/* tables */
.post-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin-block: 1.4em;
}
.post-body th {
  text-align: left;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.5rem 0.7rem;
  border-bottom: 2px solid var(--ink);
  color: var(--ink-2);
}
.post-body td {
  padding: 0.5rem 0.7rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

/* mermaid */
.mermaid {
  background: #f6f8fa;
  border: 1px solid var(--border);
  padding: 1.2rem;
  margin-block: 1.4em;
  overflow-x: auto;
}

/* images in prose */
.post-body img {
  border: 1px solid var(--border);
  max-width: 100%;
}

/* footnotes */
.post-body .footnote {
  font-size: 0.8rem;
  color: var(--ink-2);
  font-family: var(--serif);
  border-top: 1px solid var(--border);
  margin-top: 2.5em;
  padding-top: 1em;
}

/* ── Portrait (single, top-right, fixed) ─────────────────── */
/* Raw photomontage feel — no border, no shadow, just image pinned to wall */
.portrait {
  position: fixed;
  z-index: 50;
  pointer-events: none;
  /* no border, no background, no shadow */
}
.portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  /* high-contrast grayscale — dithered print feel */
  filter: grayscale(1) contrast(1.5) brightness(0.9);
}
/* tiny caption below — like a label under a pinned photo */
.portrait-cap {
  font-family: var(--mono);
  font-size: 0.42rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  text-align: center;
  margin-top: 3px;
  display: block;
}

/* ── Draft badge ─────────────────────────────────────────── */
.draft-badge {
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
  padding: 0.1rem 0.4rem;
  margin-left: 0.5rem;
  vertical-align: middle;
}

/* ── 404 ─────────────────────────────────────────────────── */
.error-page { padding: 4rem 1.5rem; }
.error-code {
  font-family: var(--mono);
  font-size: 5rem;
  color: var(--border);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.error-msg {
  font-family: var(--serif);
  font-size: 1.1rem;
  color: var(--ink-2);
  margin-bottom: 1rem;
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 600px) {
  html { font-size: 16px; }
  .site-logo { font-size: 2rem; }
  .post-h1 { font-size: 1.65rem; }
  .post-row-title { font-size: 0.98rem; }
  .post-wrap { padding-inline: 1rem; }
}