/* Blog — writing index + article pages.
   Loaded in addition to the main app.css on /blog.html and post pages. */

/* ---- Writing index list ---- */
.post-list {
  grid-column: 1 / -1;
}
.post-row {
  display: grid;
  grid-template-columns: minmax(10ch, 13ch) 1fr auto;
  align-items: baseline;
  gap: var(--s-5);
  padding-block: var(--s-5);
  border-bottom: 1px solid var(--c-ink);
  text-decoration: none; /* underline lives on the title span */
}
.post-row:last-child { border-bottom: 0; }
.post-row > time {
  font-family: var(--ff-mono);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
  color: var(--c-muted);
  letter-spacing: 0.02em;
}
.post-row .post-row-main { display: block; }
.post-row .post-title {
  display: block;
  font-size: var(--fs-h2);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.05;
  text-decoration: underline;
  text-underline-offset: 0.12em;
  transition: color 0.3s ease;
}
.post-row:hover .post-title { color: var(--c-red); }
.post-row .post-desc {
  display: block;
  margin-top: var(--s-2);
  color: var(--c-muted);
  font-size: 0.95rem;
  max-width: 60ch;
}
.post-row .arrow {
  font-size: var(--fs-h3);
  color: var(--c-muted);
  align-self: center;
}

/* ---- Article header ---- */
.post-hero { padding-block: var(--s-7) var(--s-5); }
.post-hero .headline { grid-column: 2 / span 9; }
.post-hero .post-date { margin-bottom: var(--s-4); }
.post-title {
  font-size: var(--fs-h1);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.0;
}
.post-hero .post-title .dot { color: var(--c-red); display: inline-block; transform: translateY(0.06em); }

/* ---- Article body / prose ---- */
.section > .post-body {
  grid-column: 3 / span 8;
  max-width: 74ch;
}
.post-body > :first-child { margin-top: 0; }
.post-body p { margin-top: var(--s-4); }
.post-body h2 {
  font-size: var(--fs-h2);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.1;
  margin-top: var(--s-6);
}
.post-body h3 {
  font-size: var(--fs-h3);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-top: var(--s-6);
}
.post-body h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-top: var(--s-5);
}
.post-body a {
  overflow-wrap: anywhere;
}
.post-body strong { font-weight: 700; }
.post-body ul, .post-body ol {
  margin-top: var(--s-4);
  padding-left: 1.5em;
  display: grid;
  gap: var(--s-3);
}
.post-body ul { list-style: disc; }
.post-body ol { list-style: decimal; }
.post-body li { padding-left: 0.25em; }
.post-body li::marker { color: var(--c-red); }
.post-body blockquote {
  margin-top: var(--s-4);
  padding: var(--s-2) 0 var(--s-2) var(--s-4);
  border-left: 3px solid var(--c-red);
  font-style: italic;
  color: var(--c-ink);
}
.post-body pre {
  margin-top: var(--s-4);
  padding: var(--s-4);
  background: var(--c-paper-alt);
  border: 1px solid var(--c-ink);
  overflow-x: auto;
  font-family: var(--ff-mono);
  font-size: 0.9rem;
  line-height: 1.5;
}
.post-body code {
  font-family: var(--ff-mono);
  font-size: 0.9em;
}
.post-body figure { margin-top: var(--s-5); }
.post-body figure img {
  width: 100%;
  filter: grayscale(1) contrast(1.04);
  transition: filter 0.5s ease;
}
.post-body figure:hover img { filter: grayscale(0) contrast(1); }
.post-body figcaption {
  margin-top: var(--s-2);
  font-size: var(--fs-label);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-muted);
}
.post-body .post-embed { margin-top: var(--s-4); }

/* Medium attribution */
.medium-note {
  margin-top: var(--s-6);
  padding-top: var(--s-4);
  border-top: 1px solid var(--c-ink);
  color: var(--c-muted);
  font-size: 0.95rem;
}
.medium-note a {
  overflow-wrap: anywhere;
}

/* ---- Prev / next ---- */
.post-nav {
  margin-top: var(--s-7);
  padding-top: var(--s-5);
  align-items: stretch;
}
.post-nav > * { grid-column: span 6; }
.post-nav .prev { grid-column: 1 / span 6; }
.post-nav .next { grid-column: 7 / span 6; text-align: right; }
.post-nav a { display: flex; flex-direction: column; gap: var(--s-2); text-decoration: none; }
.post-nav .nav-label {
  font-size: var(--fs-label);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--c-muted);
}
.post-nav .nav-title {
  font-size: var(--fs-h3);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.1;
  text-decoration: underline;
  text-underline-offset: 0.12em;
  transition: color 0.3s ease;
}
.post-nav a:hover .nav-title { color: var(--c-red); }

/* ---- Back link ---- */
.back-section { padding-block: var(--s-5); }
.back-wrap { grid-column: 1 / -1; }
.back-link { font-weight: 600; }

@media (max-width: 900px) {
  .post-hero .headline { grid-column: 1 / -1; }
  .section > .post-body { grid-column: 1 / -1; }
  .post-row { grid-template-columns: minmax(9ch, 11ch) 1fr auto; gap: var(--s-3); }
  .post-row .post-title { font-size: var(--fs-h3); }
}
@media (max-width: 560px) {
  .post-nav > *, .post-nav .prev, .post-nav .next {
    grid-column: 1 / -1;
    text-align: left;
  }
  .post-nav .next { margin-top: var(--s-4); }
  .post-row { grid-template-columns: 1fr; gap: var(--s-1); }
  .post-row .arrow { display: none; }
}