/* ════════════════════════════════════════════════════════════════════
   Naimur : Blog · post.css
   Article page styling. Loaded in addition to main.css.
   The article body is a measured drawing: generous leading, numbered
   sections, drafting-paper callouts, a sticky TOC rail.
   ──────────────────────────────────────────────────────────────────── */

/* ─────── post header ─────── */
.post-page main { padding-bottom: 0; }

.post {
  position: relative;
}
.post .wrap {
  max-width: 56rem;
}

/* breadcrumb-ish back link */
.post .back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mid);
  margin-bottom: 2rem;
  padding: 0.4rem 0.8rem 0.4rem 0.6rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: var(--paper-card);
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.post .back:hover { color: var(--accent); border-color: var(--accent); }
.post .back svg { width: 12px; height: 12px; }

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  margin-bottom: 1.6rem;
}
.post-meta .pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.28rem 0.7rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--paper-card);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--ink);
  transition: border-color 0.15s, color 0.15s;
}
.post-meta .pill:hover { border-color: var(--accent); color: var(--accent); }
.post-meta .pill.accent {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-bg);
}
.post-meta .pill .dot {
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: currentColor;
}

.post .post-h1 {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 5.2vw, 3.8rem);
  line-height: 1;
  letter-spacing: -0.025em;
  margin-bottom: 1.4rem;
  color: var(--ink);
}
.post .post-h1 em { font-style: italic; color: var(--accent); font-weight: 400; }

.post-lead {
  font-family: var(--serif);
  font-size: 1.32rem;
  line-height: 1.45;
  color: var(--ink-soft);
  max-width: 40rem;
  margin-bottom: 2.5rem;
  padding-left: 1.1rem;
  border-left: 2px solid var(--accent);
}

.post-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  margin-bottom: 3rem;
  padding: 1.2rem 1.4rem;
  border: 1px solid var(--rule);
  background: var(--paper-card);
  font-family: var(--mono);
  font-size: 0.78rem;
}
.post-stats .stat { display: flex; flex-direction: column; gap: 0.18rem; }
.post-stats .lbl {
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.post-stats .val {
  font-family: var(--serif);
  font-size: 1.1rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}

/* ─────── two-column layout: body + TOC ─────── */
.post-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
}
@media (min-width: 1100px) {
  .post-layout {
    grid-template-columns: minmax(0, 1fr) 16rem;
    gap: 4rem;
  }
}

/* ─────── prose body ─────── */
.post-body {
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1.78;
  color: var(--ink-soft);
  max-width: 42rem;
}
.post-body > * + * { margin-top: 1.2rem; }

.post-body h2,
.post-body h3,
.post-body h4 {
  font-family: var(--serif);
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.015em;
  line-height: 1.18;
  position: relative;
  scroll-margin-top: 5.5rem;
}
.post-body h2 {
  font-size: clamp(1.7rem, 2.6vw, 2.1rem);
  margin-top: 3.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule);
}
.post-body h2::before {
  content: "§ " counter(naimur-section) " ·";
  display: block;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
}
.post-body h3 {
  font-size: 1.4rem;
  margin-top: 2.4rem;
  margin-bottom: 0.6rem;
}
.post-body h3::before {
  content: "→ ";
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.95rem;
  margin-right: 0.2rem;
}
.post-body h4 {
  font-size: 1.1rem;
  margin-top: 1.5rem;
  margin-bottom: 0.4rem;
  color: var(--ink);
}
.post-body p { margin: 0; }
.post-body p + p { margin-top: 1rem; }

.post-body strong { color: var(--ink); font-weight: 600; }
.post-body em     { color: var(--ink); font-style: italic; }

.post-body a {
  color: var(--accent);
  text-decoration: none;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 100% 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  transition: background-size 0.18s;
}
.post-body a:hover { background-size: 0% 1px; }

/* ordered list with bracket markers */
.post-body ol {
  list-style: none;
  counter-reset: naimur-li;
  padding-left: 0;
  margin: 0;
}
.post-body ol > li {
  position: relative;
  padding-left: 2.4rem;
  counter-increment: naimur-li;
  margin-bottom: 0.7rem;
}
.post-body ol > li::before {
  content: "[" counter(naimur-li) "]";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.04em;
}

/* unordered list with arrow markers */
.post-body ul {
  list-style: none;
  padding-left: 0;
  margin: 0;
}
.post-body ul > li {
  position: relative;
  padding-left: 1.4rem;
  margin-bottom: 0.55rem;
}
.post-body ul > li::before {
  content: "▸";
  position: absolute;
  left: 0;
  top: 0.05em;
  color: var(--accent);
  font-size: 0.95rem;
}

.post-body code {
  font-family: var(--mono);
  font-size: 0.88em;
  padding: 0.15em 0.42em;
  background: var(--paper-card);
  border: 1px solid var(--rule);
  border-radius: 2px;
  color: var(--ink);
}

.post-body pre {
  position: relative;
  margin: 1.6rem 0;
  padding: 1.1rem 1.2rem;
  background: var(--paper-card);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  border-radius: 2px;
  overflow-x: auto;
  font-size: 0.88rem;
  line-height: 1.62;
  font-family: var(--mono);
  color: var(--ink);
  /* faint drafting grid inside code block */
  background-image: linear-gradient(var(--grid) 1px, transparent 1px);
  background-size: 100% 1.5rem;
  background-position: 0 0.5rem;
}
.post-body pre code {
  background: transparent;
  border: 0;
  padding: 0;
  color: inherit;
  font-size: inherit;
  white-space: pre;
}
.post-body pre .lang {
  position: absolute;
  top: 0.5rem;
  right: 0.7rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding: 0.18rem 0.5rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: var(--paper);
}

/* blockquote: drafted note card */
.post-body blockquote {
  position: relative;
  margin: 2rem 0;
  padding: 1.4rem 1.5rem 1.4rem 2.2rem;
  border: 1px solid var(--rule);
  background: var(--paper-card);
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.18rem;
  line-height: 1.55;
  color: var(--ink);
  border-left: 3px solid var(--accent);
}
.post-body blockquote::before {
  content: "“";
  position: absolute;
  left: 0.55rem;
  top: -0.2rem;
  font-size: 3.2rem;
  font-family: var(--serif);
  line-height: 1;
  color: var(--accent);
  opacity: 0.45;
}
.post-body blockquote p { margin: 0; }
.post-body blockquote p + p { margin-top: 0.6rem; }
.post-body blockquote cite {
  display: block;
  margin-top: 0.8rem;
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

/* figures: drafting-paper style */
.post-body figure {
  margin: 2rem 0;
}
.post-body figure img,
.post-body figure svg {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--rule);
  background: var(--paper-card);
  border-radius: 2px;
}
.post-body figcaption {
  margin-top: 0.6rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--ink-dim);
  text-align: center;
  letter-spacing: 0.02em;
}

/* the special drafting-figure from the demo post */
.drafting-figure {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.8rem;
}
@media (min-width: 600px) {
  .drafting-figure { grid-template-columns: 12rem 1fr; align-items: center; gap: 1.5rem; }
}
.drafting-figure .title-block {
  position: relative;
  padding: 1rem 1.1rem;
  border: 1px solid var(--rule);
  background: var(--paper-card);
  font-family: var(--mono);
  font-size: 0.78rem;
}
.drafting-figure .title-block::before,
.drafting-figure .title-block::after {
  content: "";
  position: absolute;
  width: 12px; height: 12px;
  border: 1px solid var(--accent);
}
.drafting-figure .title-block::before { top: -1px; left: -1px;  border-right: 0; border-bottom: 0; }
.drafting-figure .title-block::after  { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }
.drafting-figure .title-block .tlabel {
  display: inline-block;
  margin-bottom: 0.6rem;
  padding: 0.18rem 0.5rem;
  border: 1px solid var(--accent);
  background: var(--paper);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}
.drafting-figure .title-block .trow {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.32rem 0;
  border-top: 1px dashed var(--rule);
  font-size: 0.74rem;
}
.drafting-figure .title-block .trow:first-of-type { border-top: 0; padding-top: 0; }
.drafting-figure .title-block .trow span {
  color: var(--ink-dim);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.drafting-figure .title-block .trow strong {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 0.82rem;
  color: var(--ink);
  text-align: right;
}

/* tables */
.post-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.92rem;
  border: 1px solid var(--rule);
  background: var(--paper-card);
}
.post-body th,
.post-body td {
  text-align: left;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
}
.post-body th:last-child,
.post-body td:last-child { border-right: 0; }
.post-body th {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mid);
  background: var(--paper-deep);
}
.post-body tr:last-child td { border-bottom: 0; }

/* horizontal rule: a drawing line */
.post-body hr {
  border: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--rule), transparent);
  margin: 2.5rem 0;
}

/* footnotes */
.post-body sup a {
  font-family: var(--mono);
  font-size: 0.78em;
  color: var(--accent);
  text-decoration: none;
  background: none;
  padding: 0 0.18em;
}
.post-body sup a::before { content: "["; opacity: 0.6; }
.post-body sup a::after  { content: "]"; opacity: 0.6; }

/* keyboard */
.post-body kbd {
  font-family: var(--mono);
  font-size: 0.82em;
  padding: 0.18em 0.5em;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-bottom-width: 2px;
  border-radius: 3px;
  color: var(--ink);
}

/* section auto-numbering */
.post-body { counter-reset: naimur-section; }
.post-body h2 { counter-increment: naimur-section; }

/* ─────── table of contents (sticky right rail) ─────── */
.toc-rail {
  display: none;
}
@media (min-width: 1100px) {
  .toc-rail {
    display: block;
    position: sticky;
    top: 5.5rem;
    align-self: start;
    max-height: calc(100vh - 6rem);
    overflow-y: auto;
    padding-left: 1.5rem;
    border-left: 1px solid var(--rule);
  }
}
.toc-rail .toc-label {
  display: inline-block;
  margin-bottom: 1rem;
  padding: 0.22rem 0.55rem;
  border: 1px solid var(--rule);
  background: var(--paper-card);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mid);
}
.toc-rail ol {
  list-style: none;
  counter-reset: toc;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.toc-rail li {
  counter-increment: toc;
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.45;
}
.toc-rail li.lv-3 { padding-left: 1.2rem; font-size: 0.74rem; color: var(--ink-dim); }
.toc-rail a {
  display: block;
  padding: 0.18rem 0;
  color: var(--ink-mid);
  transition: color 0.15s;
  border-bottom: 1px dashed transparent;
}
.toc-rail a::before {
  content: counter(toc, decimal-leading-zero) " ";
  color: var(--ink-faint);
  margin-right: 0.4rem;
  font-size: 0.66rem;
  letter-spacing: 0.04em;
}
.toc-rail a:hover { color: var(--accent); }
.toc-rail a.is-active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ─────── tag list at end of post ─────── */
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 3rem 0 0;
  padding: 1.4rem 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.post-tags .lbl {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-right: 0.5rem;
  align-self: center;
}
.post-tags a {
  display: inline-flex;
  align-items: center;
  padding: 0.32rem 0.7rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: var(--paper-card);
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--ink-mid);
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.post-tags a:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-bg); }

/* ─────── author signature ─────── */
.post-author {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: center;
  margin: 2.5rem 0 0;
  padding: 1.4rem;
  border: 1px solid var(--rule);
  background: var(--paper-card);
}
.post-author .avatar {
  width: 52px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent);
  background: var(--paper);
  color: var(--accent);
  font-family: var(--serif);
  font-size: 1.4rem;
  border-radius: 999px;
}
.post-author .meta {
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
  font-family: var(--mono);
  font-size: 0.78rem;
}
.post-author .meta .name { color: var(--ink); font-size: 0.92rem; }
.post-author .meta .role { color: var(--ink-dim); font-size: 0.72rem; letter-spacing: 0.06em; }

/* ─────── post nav (prev / next) ─────── */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin-top: 2.5rem;
  font-family: var(--mono);
  font-size: 0.78rem;
}
@media (min-width: 600px) {
  .post-nav { grid-template-columns: 1fr auto 1fr; }
}
.post-nav a {
  display: inline-flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: var(--paper-card);
  color: var(--ink);
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  min-height: 3.4rem;
}
.post-nav a:hover { border-color: var(--accent); color: var(--accent); }
.post-nav a.muted { color: var(--ink-dim); pointer-events: none; opacity: 0.5; }
.post-nav a.next { text-align: right; align-items: flex-end; }
.post-nav a.center { text-align: center; justify-content: center; align-items: center; }
.post-nav a .lbl {
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.post-nav a .ttl {
  font-family: var(--serif);
  font-size: 0.95rem;
  color: inherit;
  letter-spacing: -0.005em;
  line-height: 1.2;
}

/* ─────── skip link ─────── */
.skip {
  position: absolute;
  left: -1000px;
  top: 0;
  padding: 0.7rem 1rem;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 0.78rem;
  z-index: 100;
}
.skip:focus { left: 0.5rem; top: 0.5rem; }