/* ============================================================
   Blog chrome — IP & Technology Law at IU
   Index, category, and post page styling.
   Inherits tokens from site-chrome.css.
   ============================================================ */

/* ——— Blog hero (shared by index / category / post) ——— */
.blog-hero {
  padding-top: 140px;
  padding-bottom: 80px;
  border-bottom: 1px solid var(--rule);
}
.blog-hero .eyebrow { display: inline-block; margin-bottom: 28px; }
.blog-hero h1 {
  font-family: var(--serif);
  font-size: clamp(40px, 5.4vw, 72px);
  line-height: 0.98;
  letter-spacing: -0.025em;
  max-width: 18ch;
}
.blog-hero .lead { margin-top: 28px; max-width: 60ch; }
.blog-hero .meta-row {
  display: flex;
  gap: 24px;
  align-items: center;
  margin-top: 36px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.blog-hero .meta-row a:hover { color: var(--ink); }
.blog-hero .meta-row .dot {
  width: 4px; height: 4px;
  background: var(--ink-faint);
  display: inline-block;
}

/* Breadcrumb (used on post + category pages) */
.crumb {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 36px;
}
.crumb a { color: var(--ink-dim); }
.crumb a:hover { color: var(--ink); }
.crumb .sep { margin: 0 12px; opacity: 0.6; }

/* ——— Category filter bar ——— */
.filter-bar {
  position: sticky;
  top: 80px;
  z-index: 40;
  background: rgba(11, 13, 16, 0.7);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid var(--rule);
}
.filter-inner {
  display: flex;
  gap: 0;
  flex-wrap: wrap;
  align-items: center;
  padding: 14px 0;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.filter-label {
  color: var(--ink-faint);
  margin-right: 20px;
  letter-spacing: 0.22em;
}
.filter-chip {
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--ink-dim);
  padding: 7px 12px;
  margin: 4px 6px 4px 0;
  cursor: pointer;
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  transition: background 200ms ease, border-color 200ms ease, color 200ms ease;
  white-space: nowrap;
}
.filter-chip:hover {
  background: rgba(255,255,255,0.03);
  border-color: var(--glass-border-hover);
  color: var(--ink);
}
.filter-chip[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--bg);
}
.filter-chip .count {
  opacity: 0.55;
  margin-left: 8px;
  letter-spacing: 0.05em;
}
.filter-chip[aria-pressed="true"] .count { opacity: 0.7; }

/* ——— Post list (collapsed rows) ——— */
.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule-strong);
}
.post-row {
  display: grid;
  grid-template-columns: 110px 1fr 180px;
  gap: 32px;
  padding: 22px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
  transition: background 220ms ease, padding 220ms ease;
}
.post-row:hover { background: rgba(255,255,255,0.018); }
.post-row .date {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-faint);
  text-transform: uppercase;
}
.post-row .title-cell {
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.25;
  color: var(--ink);
}
.post-row .title-cell a { display: inline; }
.post-row .title-cell a:hover { color: var(--ink); border-bottom: 1px solid var(--rule-strong); }
.post-row .by {
  display: block;
  font-family: var(--sans);
  font-size: 12px;
  color: var(--ink-faint);
  margin-top: 6px;
  letter-spacing: 0.02em;
}
.post-row .cat-cell { justify-self: end; }

/* ——— Category tags ——— */
.cat-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 5px 10px;
  border: 1px solid var(--rule-strong);
  color: var(--ink-dim);
  transition: background 200ms ease, border-color 200ms ease, color 200ms ease;
  white-space: nowrap;
}
a.cat-tag:hover {
  border-color: var(--glass-border-hover);
  color: var(--ink);
}

/* Subtle per-category color treatment.
   All same chroma, hue varies, low saturation so they stay legible. */
.cat-tag.case-notes        { color: oklch(0.80 0.06 235); border-color: oklch(0.55 0.06 235 / 0.40); }
.cat-tag.filing-analysis   { color: oklch(0.80 0.06 75);  border-color: oklch(0.55 0.06 75  / 0.40); }
.cat-tag.regulatory-notes  { color: oklch(0.80 0.06 155); border-color: oklch(0.55 0.06 155 / 0.40); }
.cat-tag.doctrinal-explainers { color: oklch(0.80 0.06 305); border-color: oklch(0.55 0.06 305 / 0.40); }
.cat-tag.technology-explainers { color: oklch(0.80 0.06 195); border-color: oklch(0.55 0.06 195 / 0.40); }
.cat-tag.historical        { color: oklch(0.78 0.04 50);  border-color: oklch(0.55 0.04 50  / 0.40); }
.cat-tag.tech-in-motion    { color: oklch(0.78 0.08 25);  border-color: oklch(0.55 0.08 25  / 0.40); }
.cat-tag.position-pieces   { color: oklch(0.80 0.06 100); border-color: oklch(0.55 0.06 100 / 0.40); }
.cat-tag.watchlists        { color: oklch(0.78 0.04 270); border-color: oklch(0.55 0.04 270 / 0.40); }

/* Larger tag for post-page header */
.cat-tag.lg {
  padding: 7px 14px;
  font-size: 11px;
  letter-spacing: 0.22em;
}

@media (max-width: 860px) {
  .post-row {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 22px 0;
  }
  .post-row .cat-cell { justify-self: start; margin-top: 4px; }
}

/* Empty state for filtered list */
.post-list[data-empty="true"] + .empty-state { display: block; }
.empty-state {
  display: none;
  padding: 80px 0 40px;
  text-align: left;
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

/* ——— Post body ——— */
.post-article {
  padding-top: 64px;
  padding-bottom: 96px;
}
.post-article .wrap { max-width: 760px; }

.post-header { margin-bottom: 56px; }
.post-header .top-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.post-header .date-line {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.post-header h1 {
  font-family: var(--serif);
  font-size: clamp(36px, 4.6vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  max-width: 24ch;
  margin: 0;
}
.post-header .byline {
  margin-top: 28px;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink-dim);
  letter-spacing: 0.02em;
  border-top: 1px solid var(--rule);
  padding-top: 22px;
}
.post-header .byline strong {
  color: var(--ink);
  font-weight: 500;
}

.post-body {
  font-family: var(--serif);
  font-size: 21px;
  line-height: 1.55;
  color: var(--ink);
  text-wrap: pretty;
}
.post-body p { margin: 0 0 1.2em; }
.post-body p:first-of-type::first-line {
  font-variant-caps: small-caps;
  letter-spacing: 0.04em;
}
.post-body h2 {
  font-family: var(--serif);
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 2.2em 0 0.6em;
  color: var(--ink);
}
.post-body h3 {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 2em 0 0.6em;
  font-weight: 500;
}
.post-body blockquote {
  margin: 1.4em 0;
  padding: 4px 0 4px 24px;
  border-left: 1px solid var(--rule-strong);
  font-style: italic;
  color: var(--ink-dim);
  font-size: 19px;
}
.post-body em { font-style: italic; }
.post-body strong { font-weight: 500; color: var(--ink); }
.post-body code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--glass-bg);
  border: 1px solid var(--rule);
  padding: 1px 6px;
  color: var(--ink);
}
.post-body a:not(.fn-ref) {
  color: var(--ink);
  border-bottom: 1px solid var(--rule-strong);
  transition: border-color 180ms ease;
}
.post-body a:not(.fn-ref):hover { border-bottom-color: var(--ink); }
.post-body hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 2.4em 0;
}

/* Footnote reference (superscript) */
.post-body sup, .post-body .fn-ref-wrap { line-height: 0; }
a.fn-ref {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0;
  vertical-align: super;
  line-height: 0;
  margin-left: 1px;
  color: var(--ink-faint);
  padding: 1px 4px;
  border: 1px solid var(--rule-strong);
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease;
}
a.fn-ref:hover, a.fn-ref:focus {
  color: var(--ink);
  border-color: var(--ink-dim);
  background: var(--glass-bg);
}
a.fn-ref:target,
li.fn-item:target {
  background: rgba(178, 34, 34, 0.12);
  border-color: rgba(178, 34, 34, 0.4);
}

/* Footnotes block */
.footnotes {
  margin-top: 96px;
  padding-top: 36px;
  border-top: 1px solid var(--rule-strong);
}
.footnotes h2 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 28px;
  font-weight: 500;
}
.footnotes ol {
  list-style: none;
  counter-reset: fn;
  margin: 0;
  padding: 0;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-dim);
}
.footnotes li.fn-item {
  counter-increment: fn;
  position: relative;
  padding: 12px 0 12px 44px;
  border-bottom: 1px solid var(--rule);
}
.footnotes li.fn-item:last-child { border-bottom: 0; }
.footnotes li.fn-item::before {
  content: counter(fn);
  position: absolute;
  left: 0;
  top: 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
  width: 32px;
}
.footnotes li a {
  color: var(--ink);
  border-bottom: 1px solid var(--rule-strong);
}
.footnotes li a:hover { border-bottom-color: var(--ink); }
.footnotes .src {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-right: 10px;
}
.footnotes .back {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-faint);
  margin-left: 8px;
  border-bottom: 0;
  letter-spacing: 0.04em;
}
.footnotes .back:hover { color: var(--ink); border-bottom: 0; }

/* ——— More-in-category row (post page) ——— */
.more-in {
  border-top: 1px solid var(--rule);
  padding: 72px 0 96px;
}
.more-in .wrap { max-width: var(--max); }
.more-in .head-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 36px;
  gap: 24px;
  flex-wrap: wrap;
}
.more-in h2 {
  font-family: var(--serif);
  font-size: 28px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.more-in .head-row .all-link {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.more-in .head-row .all-link:hover { color: var(--ink); }

.more-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.more-card {
  background: var(--bg);
  padding: 28px 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 200px;
  transition: background 220ms ease;
}
.more-card:hover { background: var(--glass-bg-hover); }
.more-card .date {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
  text-transform: uppercase;
}
.more-card .ti {
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.25;
  color: var(--ink);
  flex: 1;
}
.more-card .by {
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
}
@media (max-width: 860px) {
  .more-grid { grid-template-columns: 1fr; }
}

/* ——— Section variant: blog list body ——— */
.list-section {
  padding-top: 48px;
  padding-bottom: 120px;
}
.list-section .wrap { max-width: var(--max); }
.list-section .count-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin: 0 0 24px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.list-section .count-row .rss {
  color: var(--ink-dim);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.list-section .count-row .rss:hover { color: var(--ink); }
.list-section .count-row .rss svg {
  width: 12px; height: 12px;
  fill: currentColor;
}

/* Category description (on category page) */
.cat-desc {
  font-family: var(--serif);
  font-size: clamp(20px, 2vw, 24px);
  line-height: 1.45;
  color: var(--ink-dim);
  font-style: italic;
  max-width: 56ch;
  margin-top: 28px;
}