/* Blog list, article, hero image, stat cards and charts */
.page-h {
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  line-height: 1;
  letter-spacing: -0.045em;
  font-weight: 800;
  margin: 4rem 0 2.5rem;
}
.post {
  display: block;
  color: inherit;
  text-decoration: none;
  padding: 2rem 0;
  border-top: 1px solid var(--line);
}
.post h3,
.post h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.03em;
  line-height: 1.2;
  font-weight: 700;
  margin: 0.75rem 0;
  max-width: 46rem;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 0.2em;
  text-decoration-thickness: 2px;
  transition: text-decoration-color 150ms;
}
.post:hover h3,
.post:hover h2 {
  text-decoration-color: var(--ink);
}
.post p {
  color: var(--mute);
  font-size: 1.0625rem;
  line-height: 1.55;
  margin: 0;
  max-width: 42rem;
}
article {
  max-width: 44rem;
  padding-top: 4rem;
}
article .eyebrow {
  color: var(--acc);
}
article h1 {
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: -0.045em;
  font-weight: 800;
  margin: 1rem 0 2rem;
}
.body {
  font-size: 1.25rem;
  line-height: 1.7;
}
.body p {
  margin: 0 0 1.5rem;
}
.body h2 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  line-height: 1.15;
  letter-spacing: -0.035em;
  font-weight: 700;
  margin: 3rem 0 1.25rem;
}
.body h3 {
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  margin: 2rem 0 0.75rem;
}
.body a {
  color: var(--acc);
}
.body img {
  max-width: 100%;
  height: auto;
  border-radius: 1.5rem;
}
.body ul,
.body ol {
  padding-left: 1.5rem;
  margin: 0 0 1.5rem;
}
.body li {
  margin: 0.375rem 0;
}
.body blockquote {
  margin: 2rem 0;
  padding: 0;
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  line-height: 1.3;
  letter-spacing: -0.025em;
  font-weight: 600;
}
.body blockquote p {
  margin: 0;
}
.body code {
  background: var(--card);
  padding: 0.125em 0.375em;
  border-radius: 0.375rem;
  font-size: 0.85em;
}
.body pre {
  background: var(--card);
  padding: 1rem 1.25rem;
  border-radius: 1rem;
  overflow-x: auto;
}
.body pre code {
  background: none;
  padding: 0;
}
.body table {
  border-collapse: collapse;
  width: 100%;
  font-size: 1.0625rem;
  margin: 0 0 1.5rem;
  font-variant-numeric: tabular-nums;
}
.body td,
.body th {
  padding: 0.75rem 0.5rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
}
.body th {
  color: var(--mute);
  font-weight: 500;
  font-size: 0.875rem;
}
.body hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 3rem 0;
}
.card {
  background: var(--card);
  border-radius: 2rem;
  padding: 2rem;
  margin: 2.5rem 0;
  font-size: 1rem;
  line-height: 1.4;
}
.card small {
  color: var(--mute);
  font-size: 1rem;
}
.card .big {
  font-size: 4rem;
  line-height: 1.1;
  letter-spacing: -0.05em;
  font-weight: 700;
  margin-top: 0.5rem;
}
.card .big span {
  font-size: 1.5rem;
  color: var(--mute);
  letter-spacing: 0;
  margin-left: 0.25rem;
  font-weight: 500;
}
.card .cap {
  color: var(--mute);
  margin: 0.25rem 0 0;
}
.bars {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  height: 9rem;
  margin-top: 1.75rem;
}
.bars i {
  flex: 1;
  background: color-mix(in srgb, var(--acc) 35%, transparent);
  border-radius: 0.5rem 0.5rem 0.25rem 0.25rem;
}
.bars i.on {
  background: var(--acc);
}
.axis {
  display: flex;
  justify-content: space-between;
  color: var(--mute);
  font-size: 0.9375rem;
  margin-top: 0.75rem;
}
.back {
  display: inline-block;
  margin-top: 3rem;
  color: var(--mute);
  text-decoration: none;
}
.back:hover {
  color: var(--ink);
}
.post {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  justify-content: space-between;
}
.post .th {
  width: 5.5rem;
  height: 5.5rem;
  border-radius: 1rem;
  object-fit: cover;
  flex: none;
  margin-top: 0.25rem;
}
@media (min-width: 700px) {
  .post .th {
    width: 12rem;
    height: 8.5rem;
    border-radius: 1.25rem;
  }
}
html,
body {
  overflow-x: clip;
}
.hero-img {
  position: relative;
  margin: 0 calc(50% - 50vw);
  height: clamp(22rem, 56vw, 34rem);
  overflow: hidden;
}
.hero-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.hero-img::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 55%;
  background: linear-gradient(transparent, var(--bg));
}
article.has-hero {
  padding-top: 0;
  margin-top: -5rem;
  position: relative;
  z-index: 1;
}
.plot {
  position: relative;
  height: 9rem;
  margin-top: 1.75rem;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
}
.avg {
  position: absolute;
  left: 0;
  right: 0;
  border-top: 2px dashed color-mix(in srgb, var(--mute) 55%, transparent);
  pointer-events: none;
  z-index: 1;
}
.avg span {
  position: absolute;
  right: 0;
  bottom: 0.25rem;
  font-size: 0.8125rem;
  color: var(--mute);
}
.cols {
  display: flex;
  gap: 0.5rem;
  height: 100%;
  align-items: stretch;
}
.col {
  flex: 1;
  display: flex;
  align-items: flex-end;
  border: 0;
  background: none;
  padding: 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.col i {
  display: block;
  width: 100%;
  border-radius: 0.5rem 0.5rem 0.25rem 0.25rem;
  background: color-mix(in srgb, var(--acc) 30%, transparent);
  transition:
    height 700ms cubic-bezier(0.2, 0.8, 0.2, 1),
    background-color 150ms;
}
.col.on i {
  background: var(--acc);
}
.col:focus-visible {
  outline: 2px solid var(--acc);
  outline-offset: 2px;
  border-radius: 0.5rem;
}

/* Inline taper calculator: mirrors the shared running-tool input and slider styles. */
.taper-calculator{margin:2rem 0 2.5rem;font-size:1rem;line-height:1.5;font-variant-numeric:tabular-nums}
.taper-field{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:0 0 1.25rem;border-bottom:1px solid var(--line)}
.taper-field label,.taper-slider-head label{font-size:.9rem;font-weight:500;color:var(--ink)}
.taper-field label span{color:var(--mute);font-weight:400}
.taper-field input{width:7ch;min-width:5ch;padding:0 0 3px;border:0;border-bottom:1px solid #b8b8be;border-radius:0;background:transparent;color:var(--ink);font:inherit;font-size:1.35rem;text-align:right;outline:none}
.taper-field input:focus{border-color:var(--ink);border-bottom-width:2px}
.taper-field input::-webkit-inner-spin-button,.taper-field input::-webkit-outer-spin-button{opacity:1}
.taper-slider-head{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;margin-top:1.5rem}
.taper-slider-head output{font-size:1.4rem;font-weight:500;letter-spacing:-.04em}
.taper-range{appearance:none;-webkit-appearance:none;display:block;width:100%;height:40px;margin:8px 0 0;padding:0;border:0;background:transparent;cursor:pointer;touch-action:pan-y}
.taper-range::-webkit-slider-runnable-track{height:7px;border-radius:999px;background:var(--line)}
.taper-range::-moz-range-track{height:7px;border-radius:999px;background:var(--line)}
.taper-range::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:24px;height:24px;margin-top:-8.5px;border:2px solid var(--bg);border-radius:50%;background:var(--ink);box-shadow:0 0 0 1px var(--ink)}
.taper-range::-moz-range-thumb{width:20px;height:20px;border:2px solid var(--bg);border-radius:50%;background:var(--ink);box-shadow:0 0 0 1px var(--ink)}
.taper-range:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:999px}
.taper-slider-ends{display:flex;justify-content:space-between;gap:1rem;margin-top:0;font-size:.75rem;color:var(--mute)}
.taper-results{margin-top:1.75rem;padding-top:1.25rem;border-top:1px solid var(--line)}
.taper-result-label{display:block;color:var(--mute);font-size:.72rem;letter-spacing:.08em;font-weight:500}
.taper-target-line{display:flex;align-items:baseline;flex-wrap:wrap;gap:.5rem;margin-top:.2rem}
.taper-target-line output{font-size:clamp(3rem,10vw,4.5rem);line-height:1.1;letter-spacing:-.06em;font-weight:500;color:var(--ink)}
.taper-target-line span{color:var(--mute);font-size:.9rem}
.taper-stats{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:1rem}
.taper-stats div{display:flex;flex-direction:column;gap:.2rem;padding-top:.8rem;border-top:1px solid var(--line)}
.taper-stats span{font-size:.78rem;color:var(--mute)}
.taper-stats b{font-size:1rem;font-weight:500}
.taper-calculator-note{margin:1.25rem 0 0!important;color:var(--mute);font-size:.85rem;line-height:1.6}
@media(max-width:420px){.taper-field{align-items:flex-start}.taper-field label{max-width:70%}.taper-slider-ends{font-size:.68rem}}

/* ---------- Post layout: back button, meta line, contents, callouts, code, data charts ---------- */
.tv-pending body[data-blog] main { visibility: hidden; }

.post-nav { padding-top: 2.5rem; }
.back-btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.45rem 0.85rem 0.45rem 0.65rem;
  border: 1px solid var(--line); border-radius: 0.6rem;
  color: var(--ink); text-decoration: none; font-size: 0.95rem; line-height: 1;
  transition: background 120ms;
}
.back-btn:hover { background: var(--card); }
.back-btn:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

article { padding-top: 2.5rem; }
.post-meta {
  display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center;
  margin: 0 0 0.5rem; color: var(--mute); font-size: 0.95rem; font-variant-numeric: tabular-nums;
}
article h1 { margin: 0 0 0.75rem; font-size: clamp(2.1rem, 6vw, 3.4rem); }
.post-by { margin: 0 0 2rem; color: var(--mute); font-size: 0.95rem; }

.toc {
  margin: 0 0 2.5rem; border: 1px solid var(--line); border-radius: 0.75rem; overflow: hidden; font-size: 1rem;
}
.toc summary {
  cursor: pointer; padding: 0.7rem 1rem; font-weight: 600; background: var(--card); list-style-position: inside;
}
.toc ul { margin: 0; padding: 0.75rem 1rem 0.9rem 2.25rem; }
.toc ul ul { padding: 0.25rem 0 0.25rem 1.25rem; }
.toc li { margin: 0.35rem 0; line-height: 1.4; }
.toc a { color: var(--ink); text-underline-offset: 0.2em; text-decoration-color: var(--line); }
.toc a:hover { text-decoration-color: var(--ink); }

.body { font-size: 1.125rem; line-height: 1.75; }
.body a { color: var(--ink); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
.body h2, .body h3 { scroll-margin-top: 1.5rem; }
.body h2 .anchor, .body h3 .anchor {
  margin-left: 0.4em; color: var(--mute); text-decoration: none; font-weight: 400; opacity: 0; transition: opacity 120ms;
}
.body h2:hover .anchor, .body h3:hover .anchor, .body .anchor:focus-visible { opacity: 1; }
.body kbd {
  display: inline-block; padding: 0.1em 0.45em; border: 1px solid var(--line); border-bottom-width: 2px;
  border-radius: 0.4rem; background: var(--bg); font: 600 0.8em/1.4 inherit; font-family: inherit; white-space: nowrap;
}
.body blockquote { border-left: 3px solid var(--ink); padding-left: 1.1rem; font-size: 1.25rem; font-weight: 500; letter-spacing: -0.01em; }

.callout {
  margin: 1.75rem 0; padding: 0.9rem 1.1rem 0.4rem; border: 1px solid var(--line); border-left-width: 4px;
  border-radius: 0.6rem; background: var(--card); font-size: 1.02rem; line-height: 1.6;
}
.callout-title { margin: 0 0 0.35rem !important; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.callout-title::before { margin-right: 0.5em; }
.callout-note { border-left-color: var(--mute); }
.callout-note .callout-title::before { content: "i"; font-style: italic; font-family: serif; }
.callout-tip { border-left-color: var(--ink); }
.callout-tip .callout-title::before { content: "\2713"; }
.callout-warning { border-left-color: var(--ink); border-left-style: double; border-left-width: 6px; }
.callout-warning .callout-title::before { content: "\26A0"; }
.callout-important { border-color: var(--ink); border-left-color: var(--ink); }
.callout-important .callout-title::before { content: "!"; font-weight: 800; }

.codeblock { position: relative; margin: 1.5rem 0; }
.codeblock pre { margin: 0; padding: 1rem 1.25rem; border: 1px solid var(--line); background: var(--card); border-radius: 0.75rem; font-size: 0.9rem; line-height: 1.55; }
.codeblock .copy {
  position: absolute; top: 0.5rem; right: 0.5rem; padding: 0.3rem 0.65rem; border: 1px solid var(--line);
  border-radius: 0.5rem; background: var(--bg); color: var(--ink); font: inherit; font-size: 0.78rem; cursor: pointer;
}
.codeblock .copy:hover { background: var(--card); }
.codeblock .copy:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

.body .tablewrap { overflow-x: auto; margin: 0 0 1.5rem; }
.body .tablewrap table { margin: 0; min-width: 100%; }

/* Interactive data charts (see site/js/datachart.js) */
/* The one data colour, used only inside charts */
:root { --data: #5274a5; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --data: #9aafd2; } }
:root[data-theme="dark"] { --data: #9aafd2; }
.dchart { margin: 2.25rem 0; padding: 1.25rem 1.25rem 1rem; border: 1px solid var(--line); border-radius: 1rem; background: var(--card); font-size: 1rem; line-height: 1.4; }
.dchart-title { margin: 0 0 0.75rem; font-weight: 600; font-size: 1.05rem; }
.dchart-plot { position: relative; touch-action: pan-y; }
.dchart-plot:not([data-ready]) { display: none; }
.dchart-plot:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; border-radius: 0.5rem; }
.dchart svg { display: block; width: 100%; height: auto; overflow: visible; }
.dchart .grid { stroke: var(--line); stroke-width: 1; }
.dchart .axis-line { stroke: var(--mute); stroke-width: 1; }
.dchart .tick { fill: var(--mute); font-size: 11px; font-family: inherit; }
.dchart .guide { stroke: var(--ink); stroke-width: 1; stroke-dasharray: 3 3; }
.dchart .hit { fill: transparent; }
.dchart .dim { opacity: 0.12; }
.dchart-tip {
  position: absolute; z-index: 2; min-width: 8rem; max-width: 14rem; padding: 0.5rem 0.7rem; pointer-events: none;
  border: 1px solid var(--line); border-radius: 0.6rem; background: var(--bg); color: var(--ink);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12); font-size: 0.85rem; line-height: 1.35; font-variant-numeric: tabular-nums;
}
.dchart-tip b { display: block; margin-bottom: 0.2rem; }
.dchart-tip span { display: flex; justify-content: space-between; gap: 1rem; }
.dchart-legend { display: flex; flex-wrap: wrap; gap: 0.4rem 0.5rem; margin: 0.75rem 0 0; padding: 0; list-style: none; }
.dchart-legend button {
  display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.3rem 0.7rem; border: 1px solid var(--line);
  border-radius: 999px; background: var(--bg); color: var(--ink); font: inherit; font-size: 0.85rem; cursor: pointer;
}
.dchart .dchart-legend button svg { flex: none; width: auto; height: 14px; max-width: none; display: block; }
.dchart-legend button { white-space: nowrap; }
.dchart-legend button[aria-pressed="false"] { color: var(--mute); text-decoration: line-through; }
.dchart-legend button:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.dchart-table { margin-top: 0.9rem; font-size: 0.9rem; }
.dchart-table summary { cursor: pointer; color: var(--mute); }
.dchart-table table { width: 100%; margin-top: 0.5rem; font-size: 0.9rem; }
.dchart-table th, .dchart-table td { padding: 0.4rem 0.5rem; }
.dchart-table td { font-variant-numeric: tabular-nums; }
.dchart-note { margin: 0.75rem 0 0; color: var(--mute); font-size: 0.85rem; }
@media (prefers-reduced-motion: reduce) { .body h2 .anchor, .back-btn { transition: none; } }
@media print { .codeblock .copy, .dchart-legend, .post-nav { display: none; } .dchart-plot:not([data-ready]) { display: block; } }

/* "Blog isn't open yet" notice shown by tool-visibility.js while the blog switch is off */
[data-blog-note] { max-width: 44rem; padding-top: 2.5rem; }
[data-blog-note] .back { display: inline-block; margin-bottom: 2rem; color: var(--mute); text-decoration: none; }
[data-blog-note] .tool-eyebrow { margin: 0 0 0.5rem; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.09em; color: var(--mute); }
[data-blog-note] .tool-h { margin: 0 0 1.25rem; font-size: clamp(2rem, 6vw, 3rem); line-height: 1.05; letter-spacing: -0.04em; font-weight: 700; }
[data-blog-note] p a { color: var(--ink); }