/* ============================================================
   Field Notes — Blog styles (index + article)
   ============================================================ */

/* ═══════════════════════════════════
   BLOG INDEX
═══════════════════════════════════ */
.index { padding: 0 var(--pad) 160px; max-width: 1400px; margin: 0 auto; }

/* Masthead */
.masthead {
  padding: 80px 0 72px;
  border-bottom: 1px solid var(--ink);
  display: flex;
  flex-direction: column;
  gap: 0;
}
.masthead-kicker {
  font-family: var(--f-mono);
  font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--ink-3);
  margin-bottom: 20px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.masthead-title {
  font-family: var(--f-sans);
  font-size: clamp(64px, 12vw, 180px);
  font-weight: var(--title-weight, 800); line-height: 0.9;
  letter-spacing: -0.04em; margin: 0;
}
.masthead-title em { font-style: var(--title-style, italic); }
.masthead-bottom {
  display: flex; justify-content: space-between;
  align-items: flex-end; margin-top: 28px;
  gap: 24px; flex-wrap: wrap;
}
.masthead-dek {
  font-family: var(--f-sans);
  font-size: clamp(17px, 2vw, 22px);
  font-style: italic; color: var(--ink-2);
  line-height: 1.45; max-width: 52ch; margin: 0;
}
.masthead-stats {
  display: flex; gap: 32px;
  font-family: var(--f-mono);
  font-size: 11px; color: var(--ink-3);
  letter-spacing: 0.08em; text-transform: uppercase;
  text-align: right; flex-shrink: 0;
}
.masthead-stats b {
  display: block; font-size: 28px; font-family: var(--f-sans);
  letter-spacing: -0.02em; color: var(--ink); font-weight: 800;
  font-style: normal; line-height: 1;
  text-transform: none;
}

/* Controls row */
.controls {
  display: flex; align-items: center; gap: 12px;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
  flex-wrap: wrap;
}
.search-wrap {
  flex: 1; display: flex; align-items: center; gap: 10px;
  min-width: 220px;
}
.search-wrap svg { flex-shrink: 0; color: var(--ink-3); }
.search-wrap input {
  flex: 1; background: transparent; border: 0; outline: none;
  font-family: var(--f-sans); font-size: 17px;
  color: var(--ink); padding: 4px 0;
}
.search-wrap input::placeholder { color: var(--ink-4); }

.seg {
  display: inline-flex;
  border: 1px solid var(--rule-strong);
  border-radius: 999px; padding: 3px;
  font-family: var(--f-mono); font-size: 11px;
  letter-spacing: 0.07em; text-transform: uppercase;
}
.seg button {
  padding: 6px 14px; border-radius: 999px;
  color: var(--ink-3); white-space: nowrap;
  transition: background .12s, color .12s;
}
.seg button.on { background: var(--ink); color: var(--bg); }

/* Tags */
.tags {
  display: flex; flex-wrap: wrap; gap: 6px;
  padding: 16px 0 12px;
}
.tag-chip {
  padding: 5px 14px; border-radius: 999px;
  font-family: var(--f-sans); font-size: 12.5px;
  border: 1px solid var(--rule-strong); color: var(--ink-2);
  display: inline-flex; align-items: center; gap: 7px;
  white-space: nowrap;
  transition: background .12s, color .12s, border-color .12s;
  cursor: pointer;
}
.tag-chip:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.tag-chip.on   { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.tag-chip .n { font-family: var(--f-mono); font-size: 10px; opacity: .6; }

/* Featured hero post */
.hero-post {
  padding: 96px 0;
  border-bottom: 1px solid var(--rule);
  max-width: 920px;
}
.hero-eyebrow {
  font-family: var(--f-mono); font-size: 11px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-3); margin-bottom: 24px;
  display: flex; align-items: center; gap: 14px;
}
.hero-eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--ink-3); display: inline-block; }
.hero-title {
  font-family: var(--f-sans);
  font-size: clamp(36px, 5.5vw, 72px);
  font-weight: var(--title-weight, 800); line-height: 1.0;
  letter-spacing: -0.025em; margin: 0 0 28px;
}
.hero-title a { transition: opacity .15s; }
.hero-title a:hover { opacity: .5; }
.hero-excerpt {
  font-family: var(--f-sans);
  font-size: clamp(17px, 1.8vw, 22px);
  color: var(--ink-2); line-height: 1.5;
  max-width: 58ch; margin: 0 0 36px;
}
.hero-foot {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}
.hero-meta {
  font-family: var(--f-mono); font-size: 12px;
  color: var(--ink-3); letter-spacing: 0.05em;
  display: flex; align-items: center; gap: 12px;
  flex-wrap: nowrap; white-space: nowrap;
}
.hero-meta span.dot { color: var(--ink-4); }
.hero-cta {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--f-mono); font-size: 11px;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 11px 22px; border-radius: 999px;
  background: var(--ink); color: var(--bg);
  white-space: nowrap;
  transition: opacity .15s;
}
.hero-cta:hover { opacity: .75; }

/* Post list */
.post-list { padding-top: 8px; }
.post-row {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 0 24px;
  align-items: start;
  padding: 20px 0;
  border-bottom: 1px solid var(--rule);
  cursor: pointer;
  transition: background .12s;
}
.post-row:hover { background: color-mix(in srgb, var(--ink) 3%, transparent); }
.post-row:hover .pr-title { opacity: .5; }
.post-row:hover .pr-arrow { opacity: 1; transform: translateX(4px); }
.pr-n {
  font-family: var(--f-mono); font-size: 11px;
  color: var(--ink-4); letter-spacing: 0.05em;
  padding-top: 3px;
}
.pr-body { display: flex; flex-direction: column; gap: 6px; }
.pr-title {
  font-family: var(--f-sans); font-size: clamp(16px, 1.8vw, 21px);
  font-weight: var(--body-weight, 600);
  line-height: 1.2; letter-spacing: -0.01em;
  transition: opacity .15s;
}
.pr-meta {
  font-family: var(--f-mono); font-size: 11px;
  color: var(--ink-3); letter-spacing: 0.04em;
  display: flex; gap: 8px; align-items: center;
  flex-wrap: nowrap; overflow: hidden;
}
.pr-meta .mdot { color: var(--ink-4); }
.pr-tags { display: flex; gap: 6px; }
.pr-tags span {
  font-size: 10px; letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--ink-3);
}
.pr-side {
  display: flex; flex-direction: column;
  align-items: flex-end; gap: 6px;
  padding-top: 3px;
}
.pr-rt {
  font-family: var(--f-mono); font-size: 11px;
  color: var(--ink-3); white-space: nowrap;
}
.pr-arrow {
  color: var(--ink-3); opacity: 0;
  transition: opacity .15s, transform .15s;
}
.pr-bm { color: var(--ink-3); }
.pr-bm.saved { color: var(--ink); }

/* Pagination */
.pgn {
  display: flex; justify-content: space-between; align-items: center;
  padding: 52px 0 0;
}
.pgn-nums { display: flex; gap: 2px; }
.pgn-nums button, .pgn-nums span {
  width: 38px; height: 38px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 999px;
  font-family: var(--f-mono); font-size: 13px; color: var(--ink-2);
}
.pgn-nums button:hover { background: var(--rule); }
.pgn-nums span.cur { background: var(--ink); color: var(--bg); }
.pgn-step {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--f-mono); font-size: 11px;
  letter-spacing: 0.09em; text-transform: uppercase;
  padding: 10px 18px; border-radius: 999px;
  border: 1px solid var(--rule-strong); color: var(--ink-2);
  transition: background .12s, color .12s, border-color .12s;
}
.pgn-step:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }

/* ═══════════════════════════════════
   ARTICLE VIEW
═══════════════════════════════════ */
.article-page { padding: 0 var(--pad) 120px; }
.article-inner { max-width: var(--col); margin: 0 auto; }

.crumbs {
  max-width: var(--col); margin: 0 auto;
  padding: 22px 0;
  display: flex; align-items: center; gap: 10px;
  font-family: var(--f-mono); font-size: 11px;
  letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--ink-3); border-bottom: 1px solid var(--rule);
  white-space: nowrap; flex-wrap: nowrap; overflow: hidden;
}
.crumbs a:hover { color: var(--ink); }
.crumbs .sep { color: var(--ink-4); }

/* Article header */
.art-header {
  max-width: var(--col); margin: 0 auto;
  padding: 80px 0 64px;
  border-bottom: 1px solid var(--ink);
}
.art-cat {
  font-family: var(--f-mono); font-size: 11px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-3); margin-bottom: 20px;
  display: flex; align-items: center; gap: 12px;
  white-space: nowrap;
}
.art-cat::before { content: ""; display: inline-block; width: 24px; height: 1px; background: var(--ink-3); }
.art-title {
  font-family: var(--f-sans);
  font-size: clamp(40px, 6.5vw, 80px);
  font-weight: var(--title-weight, 800); line-height: 0.97;
  letter-spacing: -0.025em; margin: 0 0 32px;
}
.art-dek {
  font-family: var(--f-sans); font-style: italic;
  font-size: clamp(18px, 2vw, 23px);
  color: var(--ink-2); line-height: 1.48;
  margin: 0 0 40px; max-width: 52ch;
}
.art-meta {
  display: flex; align-items: center; flex-wrap: wrap; gap: 6px 12px;
  font-family: var(--f-mono); font-size: 11px;
  color: var(--ink-3); letter-spacing: 0.04em;
  padding-top: 24px; border-top: 1px dotted var(--rule-strong);
}
.art-meta .dot { color: var(--ink-4); }
.art-tag {
  background: var(--ink); color: var(--bg);
  padding: 4px 10px; border-radius: 999px;
  font-size: 10.5px; letter-spacing: 0.07em; text-transform: uppercase;
  white-space: nowrap;
}
.art-actions {
  margin-left: auto; display: flex; gap: 4px;
}
.art-btn {
  width: 32px; height: 32px; border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--ink-3); transition: background .12s, color .12s;
}
.art-btn:hover { background: var(--rule); color: var(--ink); }

/* Article body */
.art-body {
  padding: 72px 0 96px;
  font-family: var(--f-sans);
  font-size: var(--body-size, 19px);
  line-height: var(--body-lh, 1.72);
  color: var(--ink);
}
.art-body p {
  margin: 0 0 var(--body-gap, 1.6em);
  text-wrap: pretty;
}
.art-body a {
  text-decoration: underline;
  text-decoration-color: var(--ink-4);
  text-underline-offset: 3px;
  transition: text-decoration-color .15s;
}
.art-body a:hover { text-decoration-color: var(--ink); }
.art-body h2, .art-body h3 {
  font-family: var(--f-sans); font-weight: 700;
  letter-spacing: -0.02em; line-height: 1.1;
  margin: 2em 0 .75em;
}
.art-body h2 { font-size: clamp(24px, 3vw, 36px); }
.art-body h3 { font-size: clamp(19px, 2.5vw, 26px); }
.art-body ul, .art-body ol { margin: 0 0 var(--body-gap, 1.6em); padding-left: 1.5em; }
.art-body li { margin-bottom: .4em; }
.art-body blockquote {
  border-left: 3px solid var(--ink-4);
  margin: 2em 0; padding: .5em 0 .5em 1.5em;
  color: var(--ink-2); font-style: italic;
}
.art-body code {
  font-family: var(--f-mono); font-size: .85em;
  background: var(--rule); padding: 2px 6px; border-radius: 4px;
}
.art-body pre {
  background: var(--rule); border-radius: 8px;
  padding: 1.5em; overflow-x: auto;
  margin: 0 0 var(--body-gap, 1.6em);
}
.art-body pre code { background: transparent; padding: 0; }

/* Drop cap */
.art-body .drop-cap::first-letter {
  font-family: var(--f-sans);
  float: left;
  font-size: 4.8em;
  font-weight: 800;
  line-height: 0.82;
  padding: 6px 14px 0 0;
  color: var(--ink);
}

/* Section headings */
.art-body .sec {
  margin: var(--section-gap, 88px) 0 36px;
}
.art-body .sec .sec-n {
  font-family: var(--f-mono); font-size: 11px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-3); display: block;
  margin-bottom: 14px;
}
.art-body .sec h2 {
  font-family: var(--f-sans);
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800; line-height: 1.05;
  letter-spacing: -0.025em; margin: 0;
}

/* Pull quote */
.pull {
  margin: 64px -24px;
  padding: 48px 24px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--rule);
  font-family: var(--f-sans); font-style: italic;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.2; letter-spacing: -0.02em;
  color: var(--ink);
}
.pull .pull-src {
  display: block; margin-top: 18px;
  font-style: normal; font-family: var(--f-mono);
  font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--ink-3);
}

/* Stat callout */
.stat-block {
  margin: 56px 0;
  display: flex; gap: 24px; align-items: flex-start;
  padding: 36px 0;
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
}
.stat-num {
  font-family: var(--f-sans);
  font-size: clamp(52px, 7vw, 80px);
  font-weight: 800; line-height: 1;
  letter-spacing: -0.03em; color: var(--ink);
  flex-shrink: 0;
}
.stat-text {
  padding-top: 8px;
  font-family: var(--f-sans); font-size: 15px;
  line-height: 1.5; color: var(--ink-2);
}
.stat-text b { color: var(--ink); font-weight: 600; }

/* Highlighted text */
.hl-y { background: rgba(252,211,77,.42); padding: 1px 0; }
.hl-g { background: rgba(110,231,183,.42); padding: 1px 0; }
.hl-r { background: rgba(252,165,165,.55); padding: 1px 0; }

/* Article TOC side rail layout */
.article-with-toc {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 32px;
  max-width: calc(160px + 32px + var(--col));
  margin: 0 auto;
  align-items: start;
  padding: 0;
}
.article-toc-rail { padding-top: 72px; }
.article-toc-sticky {
  position: sticky;
  top: calc(56px + 20px);
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  padding-right: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--ink-4) transparent;
}
.article-toc-sticky .art-toc { margin: 0; padding: 0; border: 0; }
.article-toc-sticky .art-toc-label {
  font-family: var(--f-mono);
  font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-4); margin-bottom: 14px;
  padding-bottom: 10px; border-bottom: 1px solid var(--rule);
}
.article-toc-sticky .art-toc ol {
  border-left: 1px solid var(--rule); padding-left: 0;
  list-style: none; margin: 0;
}
.article-toc-sticky .art-toc ol li {
  display: flex; align-items: baseline; gap: 8px;
  cursor: pointer; padding: 8px 0 8px 14px;
  margin-left: -1px; border-left: 2px solid transparent;
  transition: color .12s, border-color .12s;
}
.article-toc-sticky .art-toc ol li:hover .toc-t { opacity: .55; }
.article-toc-sticky .art-toc ol li.cur { border-left-color: var(--ink); }
.article-toc-sticky .art-toc ol li.cur .toc-t { color: var(--ink); font-weight: 600; }
.article-toc-sticky .toc-n {
  font-family: var(--f-mono); font-size: 10px; color: var(--ink-4); flex-shrink: 0;
}
.article-toc-sticky .toc-t {
  font-family: var(--f-sans); font-size: 12px; line-height: 1.3; color: var(--ink-3);
}

@media (max-width: 760px) {
  .article-with-toc {
    grid-template-columns: minmax(0, var(--col));
    gap: 0; justify-content: center;
  }
  .article-toc-rail { display: none; }
}

/* End matter */
.end-matter { max-width: var(--col); margin: 0 auto; padding-top: 80px; }
.end-rule { border: 0; border-top: 1px solid var(--rule); margin: 0 0 56px; }
.end-label {
  font-family: var(--f-mono); font-size: 10px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-4); margin: 0 0 20px;
}

/* Author */
.author-block {
  display: grid; grid-template-columns: 64px 1fr; gap: 20px;
  align-items: start; margin-bottom: 72px;
}
.author-av {
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--ink); color: var(--bg);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--f-sans); font-size: 24px; font-style: italic;
}
.author-name { font-family: var(--f-sans); font-size: 22px; font-weight: 700; margin: 0 0 4px; }
.author-role { font-family: var(--f-sans); font-size: 13px; color: var(--ink-3); margin: 0 0 12px; }
.author-note { font-family: var(--f-sans); font-style: italic; font-size: 15px; color: var(--ink-2); line-height: 1.5; margin: 0; }
.author-links { display: flex; gap: 4px; margin-top: 14px; }
.alink {
  width: 32px; height: 32px; border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--ink-3); border: 1px solid var(--rule-strong);
  transition: background .12s, color .12s, border-color .12s;
}
.alink:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }

/* Share */
.share-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 72px; }
.share-btn {
  padding: 10px 20px; border-radius: 999px;
  border: 1px solid var(--rule-strong);
  font-family: var(--f-mono); font-size: 11px;
  letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--ink-2); transition: background .12s, color .12s, border-color .12s;
}
.share-btn:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }

/* Prev / Next */
.prev-next {
  display: grid; grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
  margin-bottom: 72px;
}
.pn-link { padding: 28px 0; transition: opacity .15s; }
.pn-link:hover { opacity: .6; }
.pn-link.right { text-align: right; padding-left: 24px; border-left: 1px solid var(--rule); }
.pn-dir {
  font-family: var(--f-mono); font-size: 10px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-4); display: flex; align-items: center; gap: 6px;
  margin-bottom: 8px;
}
.pn-link.right .pn-dir { justify-content: flex-end; }
.pn-title { font-family: var(--f-sans); font-size: 18px; font-weight: 600; line-height: 1.2; letter-spacing: -0.01em; }

/* Related */
.related-list { display: flex; flex-direction: column; gap: 0; }
.related-item {
  display: grid; grid-template-columns: 1fr auto;
  align-items: baseline; gap: 16px;
  padding: 20px 0; border-bottom: 1px solid var(--rule);
  cursor: pointer; transition: opacity .15s;
}
.related-item:hover { opacity: .55; }
.related-cat { font-family: var(--f-mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-4); margin-bottom: 6px; }
.related-title { font-family: var(--f-sans); font-size: 18px; font-weight: 600; line-height: 1.2; letter-spacing: -0.01em; }
.related-rt { font-family: var(--f-mono); font-size: 11px; color: var(--ink-4); white-space: nowrap; }

/* References */
.refs { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 14px; }
.refs li {
  font-family: var(--f-sans); font-size: 13px; line-height: 1.5;
  color: var(--ink-2); display: flex; gap: 14px;
}
.refs li .rn { font-family: var(--f-mono); font-size: 11px; color: var(--ink-4); flex-shrink: 0; }
.refs li b { color: var(--ink); font-weight: 600; }

/* Reading dock */
.dock {
  position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 2px;
  background: var(--ink); color: var(--bg);
  border-radius: 999px; padding: 6px;
  box-shadow: 0 8px 32px rgba(0,0,0,.18);
  z-index: 40;
}
.dock-btn {
  width: 38px; height: 38px; border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.5);
  transition: background .12s, color .12s;
}
.dock-btn:hover, .dock-btn.on { background: rgba(255,255,255,.12); color: rgba(255,255,255,.95); }
.dock-sep { width: 1px; height: 18px; background: rgba(255,255,255,.15); margin: 0 4px; }
.dock-info {
  font-family: var(--f-mono); font-size: 11px;
  letter-spacing: 0.04em; color: rgba(255,255,255,.45);
  padding: 0 14px;
}

/* Highlight swatch */
.hs { width: 14px; height: 14px; border-radius: 50%; display: inline-block; }
.hs-y { background: rgb(252,211,77); }
.hs-g { background: rgb(52,199,140); }
.hs-r { background: rgb(248,113,113); }

/* ── Blog responsive ── */
@media (max-width: 768px) {
  .masthead-stats { display: none; }
  .prev-next { grid-template-columns: 1fr; }
  .pn-link.right { border-left: 0; border-top: 1px solid var(--rule); padding-left: 0; }
  .post-row { grid-template-columns: 36px 1fr auto; gap: 0 12px; }
  .pull { margin: 48px 0; padding: 32px 0; }
  .dock { left: 16px; right: 16px; bottom: 16px; transform: none; justify-content: center; }
}
@media (max-width: 480px) {
  .art-body .sec h2 { font-size: 26px; }
  .pull { font-size: 22px; }
  .stat-num { font-size: 48px; }
  .controls { flex-direction: column; align-items: flex-start; }
}