/* =========================================
   READER — shared styles for /writing/ pages
   ========================================= */

:root {
  --bone:#F4EFE4; --ink:#0E0D14; --ink-2:#3a3744; --ink-3:#7c7686;
  --rule:#e6dfd0; --rule-strong:#1a1922;
  --violet:#4F32D8; --violet-soft:#a78bfa; --lime:#D4FF3D;
  --sans:'Inter',system-ui,-apple-system,sans-serif;
  --serif:'Instrument Serif',Georgia,serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
  --pad: clamp(20px, 4vw, 56px);
  --max-prose: 68ch;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bone);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  font-size: 17px;
}
a { color: inherit; }
.italic, em { font-family: var(--serif); font-style: italic; font-weight: 400; }
strong { font-weight: 600; color: var(--ink); }

/* Top bar — sticky */
.reader-top {
  position: sticky; top: 0; z-index: 50;
  background: rgba(244,239,228,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--rule);
}
.reader-top-inner {
  max-width: 1100px; margin: 0 auto;
  padding: 14px var(--pad);
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
}
.back {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 12px;
  letter-spacing: .04em; color: var(--ink);
  text-decoration: none;
  padding: 8px 14px;
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
  transition: all .2s;
}
.back:hover { background: var(--ink); color: var(--bone); }
.top-meta {
  font-family: var(--mono); font-size: 12px; color: var(--ink-2);
  letter-spacing: .04em;
  display: inline-flex; align-items: center; gap: 14px;
}
.top-meta a { text-decoration: none; color: var(--violet); }
.top-meta a:hover { color: var(--ink); }

/* Reading progress bar */
.progress {
  position: absolute;
  bottom: -1px; left: 0;
  height: 2px;
  background: var(--violet);
  width: 0;
  transition: width .1s linear;
}

/* Hero */
.reader-hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: clamp(50px, 8vw, 90px) var(--pad) clamp(28px, 4vw, 44px);
}
.kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--violet);
  margin-bottom: 22px;
}
.reader-hero h1 {
  font-family: var(--sans);
  font-size: clamp(42px, 6.5vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  font-weight: 700;
  margin-bottom: 22px;
  max-width: 22ch;
}
.reader-hero h1 em {
  font-family: var(--serif);
  font-weight: 400;
}
.reader-deck {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.35;
  max-width: 38ch;
  color: var(--ink-2);
  margin-bottom: 28px;
}
.reader-meta {
  display: flex; flex-wrap: wrap; gap: 6px 22px;
  font-family: var(--mono); font-size: 12.5px;
  letter-spacing: .04em; color: var(--ink-2);
  padding-top: 22px;
  border-top: 1px solid var(--rule);
}
.reader-meta strong { color: var(--ink); font-weight: 500; }

/* Body — prose */
.prose {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--pad) clamp(40px, 6vw, 80px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
}
@media (min-width: 1100px) {
  .prose { grid-template-columns: 220px 1fr; }
}
.prose-toc {
  align-self: start;
  position: sticky;
  top: 88px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ink-2);
  display: none;
}
@media (min-width: 1100px) {
  .prose-toc { display: block; }
}
.prose-toc .toc-label {
  font-size: 10px;
  letter-spacing: .14em;
  color: var(--ink-2);
  margin-bottom: 14px;
  text-transform: uppercase;
  font-weight: 600;
}
.prose-toc ul { list-style: none; display: grid; gap: 10px; }
.prose-toc a {
  display: block;
  text-decoration: none;
  color: var(--ink-2);
  padding-left: 14px;
  border-left: 1.5px solid var(--rule-strong);
  transition: color .2s, border-color .2s;
  line-height: 1.4;
}
.prose-toc a:hover, .prose-toc a.active {
  color: var(--ink);
  border-color: var(--violet);
  font-weight: 600;
}

.prose-body {
  max-width: var(--max-prose);
  font-size: clamp(17px, 1.2vw, 19px);
  line-height: 1.7;
}
.prose-body > * + * { margin-top: 1.1em; }

/* Short answer callout */
.callout-short {
  background: var(--violet);
  color: #ffffff !important;
  padding: clamp(20px, 3vw, 30px) clamp(22px, 3vw, 32px);
  border-radius: 8px;
  border: 1.5px solid var(--ink);
  box-shadow: 6px 6px 0 0 var(--ink);
  margin: 0 0 clamp(30px, 5vw, 48px) !important;
  position: relative;
}
.callout-short .label,
.prose-body .callout-short .label {
  display: block;
  font-family: var(--mono); font-size: 12px;
  letter-spacing: .14em; text-transform: uppercase;
  color: #ffffff !important;
  opacity: 0.8;
  margin-bottom: 12px;
}
.callout-short p,
.prose-body .callout-short p {
  font-family: var(--serif) !important;
  font-style: normal !important;
  font-size: clamp(19px, 2vw, 23px) !important;
  line-height: 1.4 !important;
  color: #ffffff !important;
  font-weight: 400 !important;
}
.callout-short strong,
.prose-body .callout-short strong,
.prose-body .callout-short p strong {
  color: #ffffff !important;
  font-weight: 700 !important;
  background: linear-gradient(180deg, transparent 70%, var(--lime) 70%) !important;
  padding: 0 3px !important;
}

/* Body H4 / section heads */
.prose-body h4 {
  font-family: var(--sans);
  font-size: clamp(24px, 2.6vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  font-weight: 700;
  margin-top: 2em !important;
  margin-bottom: 0.6em !important;
  position: relative;
  scroll-margin-top: 100px;
}
.prose-body h4::before {
  content: "//";
  font-family: var(--mono);
  font-size: 14px;
  color: var(--violet);
  margin-right: 10px;
  letter-spacing: 0;
  vertical-align: middle;
  font-weight: 500;
}

/* Body paragraphs */
.prose-body p { color: var(--ink-2); }
.prose-body p strong, .prose-body li strong { color: var(--ink); }

/* Drop-cap on first paragraph */
.prose-body > p:first-of-type::first-letter,
.prose-body > p.dropcap::first-letter {
  font-family: var(--serif);
  font-style: italic;
  font-size: 4.2em;
  line-height: 0.85;
  float: left;
  padding: 6px 14px 0 0;
  color: var(--ink);
}

/* Lists */
.prose-body ul, .prose-body ol {
  padding-left: 0;
  list-style: none;
  display: grid;
  gap: 0.5em;
}
.prose-body ul li, .prose-body ol li {
  position: relative;
  padding-left: 28px;
  color: var(--ink-2);
}
.prose-body ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.7em;
  width: 16px; height: 1.5px;
  background: var(--violet);
}
.prose-body ol { counter-reset: o; }
.prose-body ol li { counter-increment: o; }
.prose-body ol li::before {
  content: counter(o, decimal-leading-zero);
  position: absolute;
  left: 0; top: 0.05em;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--violet);
  font-weight: 600;
}

/* Pull quote */
.pullquote {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(22px, 2.8vw, 28px);
  line-height: 1.3;
  color: var(--ink);
  border-left: 3px solid var(--violet);
  padding: 8px 0 8px 22px;
  margin: clamp(28px, 4vw, 40px) 0 !important;
  max-width: 30em;
}
.pullquote::before {
  content: "❝";
  display: block;
  font-size: 1.4em;
  color: var(--violet);
  line-height: 1;
  margin-bottom: 6px;
}

/* Takeaways */
.takeaways {
  margin-top: clamp(40px, 6vw, 56px) !important;
  padding: clamp(22px, 3vw, 30px);
  background: var(--lime);
  border: 1.5px solid var(--ink);
  border-radius: 8px;
  box-shadow: 6px 6px 0 0 var(--ink);
}
.takeaways .label {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 14px;
  display: block;
}
.takeaways ul li {
  color: var(--ink);
  font-size: 15px;
  line-height: 1.55;
}
.takeaways ul li::before { background: var(--ink); }

/* FAQ */
.faq {
  margin-top: clamp(40px, 6vw, 56px) !important;
}
.faq h4 { margin-bottom: 24px; }
.faq-item {
  border-top: 1px solid var(--rule);
  padding: 22px 0 18px;
}
.faq-item:last-child { border-bottom: 1px solid var(--rule); }
.faq-item h5 {
  font-family: var(--sans);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}
.faq-item p {
  font-size: 15px;
  color: var(--ink-2);
  margin: 0;
}

/* Foot of article */
.article-foot {
  margin-top: clamp(40px, 6vw, 56px);
  padding: 24px 0 0;
  border-top: 1px solid var(--rule);
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
  font-family: var(--mono); font-size: 12px;
  letter-spacing: .04em; color: var(--ink-2);
}
.article-foot a {
  color: var(--violet);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}
.article-foot a:hover { color: var(--ink); }

/* Cross-links bottom */
.more-reading {
  max-width: 1100px;
  margin: 0 auto;
  padding: clamp(40px, 6vw, 80px) var(--pad);
  border-top: 1px solid var(--rule);
}
.more-reading-head {
  font-family: var(--mono); font-size: 12px;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink-2); margin-bottom: 22px;
  font-weight: 600;
}
.more-grid {
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
.more-card {
  display: block;
  padding: 22px;
  border: 1px solid var(--rule);
  background: #fff;
  border-radius: 8px;
  text-decoration: none;
  color: var(--ink);
  transition: all .25s;
}
.more-card:hover {
  border-color: var(--ink);
  transform: translateY(-3px);
  box-shadow: 6px 6px 0 0 var(--ink);
}
.more-card .mc-kicker {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--violet); margin-bottom: 12px;
  font-weight: 600;
}
.more-card .mc-title {
  font-size: 19px; font-weight: 600;
  line-height: 1.25; letter-spacing: -0.01em;
}
.more-card .mc-title em { font-family: var(--serif); font-weight: 400; }

/* Final back footer */
.reader-foot {
  max-width: 1100px;
  margin: 0 auto;
  padding: clamp(30px, 5vw, 60px) var(--pad) clamp(40px, 6vw, 80px);
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
  font-family: var(--mono); font-size: 12px;
  letter-spacing: .04em; color: var(--ink-3);
}
.reader-foot a.button {
  font-family: var(--mono); font-size: 13px;
  padding: 10px 18px;
  background: var(--ink); color: var(--bone);
  border-radius: 999px;
  text-decoration: none;
  letter-spacing: .04em;
  transition: background .2s;
}
.reader-foot a.button:hover { background: var(--violet); }

/* Pick X if — two-column comparison */
.compare-cols {
  display: grid; gap: 18px;
  grid-template-columns: 1fr;
  margin-top: 1.5rem;
}
@media (min-width: 720px) {
  .compare-cols { grid-template-columns: 1fr 1fr; gap: 24px; }
}
.compare-col {
  padding: clamp(20px, 3vw, 28px);
  border: 1.5px solid var(--ink);
  border-radius: 10px;
  background: #fff;
}
.compare-col.violet { background: var(--violet); color: #ffffff; }
.compare-col.violet h5 { color: #ffffff; }
.compare-col.violet ul li { color: #ffffff; }
.compare-col.violet ul li::before { background: var(--lime); height: 2px; }
.compare-col h5 {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--violet);
}
/* Violet column — keep heading white, accents in lime only */
.compare-col.violet h5 {
  color: #ffffff;
}
.compare-col.violet h5::first-letter,
.compare-col.violet h5 .accent {
  color: var(--lime);
}
.compare-col ul {
  list-style: none;
  display: grid;
  gap: 10px;
  padding-left: 0;
}
.compare-col ul li {
  position: relative;
  padding-left: 24px;
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--ink-2);
}
.compare-col ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.6em;
  width: 14px; height: 1.5px;
  background: var(--violet);
}

/* Together in the stack — synergy callout */
.synergy {
  margin-top: clamp(28px, 4vw, 40px);
  padding: clamp(20px, 3vw, 28px);
  background: var(--bone);
  border-left: 3px solid var(--violet);
  border-radius: 4px;
}
.synergy .label {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--violet);
  margin-bottom: 10px;
  display: block;
  font-weight: 600;
}
.synergy p {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
}

/* Problem list (use case pages) */
.problem-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 14px;
  margin: 1.5rem 0 !important;
  counter-reset: prob;
}
.problem-list li {
  counter-increment: prob;
  position: relative;
  padding: 16px 18px 16px 56px;
  background: #fff;
  border: 1px solid var(--rule-strong);
  border-radius: 8px;
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-2);
}
.problem-list li::before {
  content: counter(prob, decimal-leading-zero);
  position: absolute;
  left: 18px; top: 18px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--violet);
  letter-spacing: .04em;
}

/* Weekly loop cards (Mon / Mid / Fri) */
.loop-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 1.5rem 0 !important;
}
@media (min-width: 720px) { .loop-cards { grid-template-columns: 1fr 1fr 1fr; gap: 18px; } }
.loop-card {
  padding: clamp(18px, 2.5vw, 24px);
  background: var(--bone);
  border: 1.5px solid var(--ink);
  border-radius: 10px;
  border-bottom: 4px solid var(--violet);
}
.loop-card:nth-child(2) { border-bottom-color: var(--lime); }
.loop-card:nth-child(3) { border-bottom-color: var(--ink); }
.loop-card .label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--violet);
  font-weight: 700;
  margin-bottom: 10px;
  display: block;
}
.loop-card:nth-child(2) .label { color: var(--ink); background: var(--lime); padding: 3px 8px; border-radius: 999px; display: inline-block; }
.loop-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--ink-2);
}

/* Reveal */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }