/* ══ KoomBei editorial styles ════════════════════════════════
   Case studies (pages/work/) and the blog (blog/). Loaded only by
   those pages plus portfolio.html, so the rest of the site does not
   pay for CSS it never uses.

   Same rules as style.css: --amber is the only accent, Ubuntu only,
   --radius stays 12px, 3-col → 2-col at 900px → 1-col at 600px.
   style.css must be loaded first; this file relies on its tokens. */

/* ── Breadcrumbs ─────────────────── */
.crumbs {
  font-size: 12px;
  font-weight: 300;
  color: var(--midgreen);
  max-width: 1100px;
  margin: 0 auto;
  padding: 22px 5% 0;
}

.crumbs a { color: var(--midgreen); text-decoration: none; transition: color 0.2s; }
.crumbs a:hover { color: var(--amber); }
.crumbs [aria-current] { color: var(--night); font-weight: 400; }
.crumbs .sep { opacity: 0.45; margin: 0 7px; }

/* Crumbs that sit on a dark hero need the palette flipped. */
.crumbs-dark { color: var(--border); }
.crumbs-dark a { color: var(--border); }
.crumbs-dark [aria-current] { color: var(--lily); }

/* ── Case-study hero ─────────────── */
.cs-hero {
  background: var(--night);
  padding: 34px 5% 90px;
  position: relative;
  overflow: hidden;
}

.cs-hero::before {
  content: '';
  position: absolute;
  top: -140px;
  right: -120px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(199, 160, 3, 0.07) 0%, transparent 70%);
  pointer-events: none;
}

.cs-hero-inner { max-width: 1100px; margin: 0 auto; position: relative; z-index: 1; }

.cs-hero .section-label { display: block; margin-bottom: 14px; }

.cs-hero h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--lily);
  margin-bottom: 18px;
}

.cs-hero h1 em { color: var(--amber); font-style: normal; }

.cs-lede {
  font-size: 16px;
  font-weight: 300;
  line-height: 1.85;
  color: var(--border);
  max-width: 660px;
}

/* Fact strip under the hero headline. */
.cs-facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 40px;
  background: rgba(232, 230, 200, 0.14);
  border: 1px solid rgba(232, 230, 200, 0.14);
  border-radius: var(--radius);
  overflow: hidden;
}

.cs-fact { background: var(--night); padding: 20px 22px; }

.cs-fact dt {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 8px;
}

.cs-fact dd { font-size: 14px; font-weight: 400; color: var(--lily); margin: 0; }

/* ── Narrative blocks ────────────── */
.cs-narrative { max-width: 760px; margin: 0 auto; }

.cs-block + .cs-block { margin-top: 64px; }

.cs-block h2 { font-size: 28px; font-weight: 700; color: var(--night); margin-bottom: 8px; }

.cs-block > .divider { margin: 0 0 22px; }

.cs-block p {
  font-size: 15px;
  font-weight: 300;
  line-height: 1.9;
  color: var(--midgreen);
}

.cs-block p + p { margin-top: 16px; }

.cs-block strong { font-weight: 500; color: var(--green); }

/* Numbered marker on each narrative block. */
.cs-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  margin-bottom: 16px;
  border-radius: 50%;
  background: var(--amber);
  color: var(--night);
  font-size: 13px;
  font-weight: 700;
}

.cs-list { list-style: none; margin-top: 20px; }

.cs-list li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  font-weight: 300;
  line-height: 1.9;
  color: var(--midgreen);
}

.cs-list li + li { margin-top: 10px; }

.cs-list li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 12px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber);
}

/* ── Pull quote ──────────────────── */
.cs-quote { border-left: 3px solid var(--amber); padding: 6px 0 6px 26px; margin: 40px 0; }

.cs-quote p {
  font-size: 18px;
  font-weight: 300;
  font-style: italic;
  line-height: 1.75;
  color: var(--green);
}

.cs-quote cite {
  display: block;
  margin-top: 12px;
  font-size: 12px;
  font-style: normal;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--amber);
}

/* ── Impact metrics ──────────────── */
.cs-impact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.cs-impact {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  transition: transform 0.25s, box-shadow 0.25s;
}

.cs-impact:hover { transform: translateY(-4px); box-shadow: var(--shadow); }

.cs-impact .num {
  display: block;
  font-size: 30px;
  font-weight: 700;
  color: var(--amber);
  margin-bottom: 6px;
}

.cs-impact .lbl { font-size: 13px; font-weight: 300; line-height: 1.7; color: var(--midgreen); }

/* ── Before / after comparison ───── */
.cs-ba { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 32px; }

.cs-ba-col {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.cs-ba-col.is-after { border-color: rgba(199, 160, 3, 0.55); }

.cs-ba-tag {
  display: block;
  padding: 12px 18px;
  background: var(--pale);
  border-bottom: 1px solid var(--border);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--midgreen);
}

.cs-ba-col.is-after .cs-ba-tag {
  background: var(--amber);
  border-bottom-color: var(--amber);
  color: var(--night);
}

.cs-ba-body { padding: 22px 20px; }

.cs-ba-body ul { list-style: none; }

.cs-ba-body li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  font-weight: 300;
  line-height: 1.8;
  color: var(--midgreen);
}

.cs-ba-body li + li { margin-top: 9px; }

.cs-ba-body li::before {
  content: "\00d7";
  position: absolute;
  left: 2px;
  top: 0;
  color: var(--midgreen);
  font-weight: 500;
}

.cs-ba-col.is-after .cs-ba-body li::before { content: "\2713"; color: var(--amber); }

/* ── Screenshot frame ────────────── */
.cs-shot {
  margin-top: 32px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.cs-shot-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 11px 14px;
  background: var(--pale);
  border-bottom: 1px solid var(--border);
}

.cs-shot-bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--border); }

.cs-shot-bar .url {
  margin-left: 8px;
  font-size: 11px;
  font-style: normal;
  font-weight: 300;
  color: var(--midgreen);
}

.cs-shot img { display: block; width: 100%; height: auto; }

.cs-shot figcaption {
  padding: 14px 18px;
  border-top: 1px solid var(--border);
  font-size: 12.5px;
  font-weight: 300;
  color: var(--midgreen);
}

/* ── Tech stack chips ────────────── */
.cs-stack { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }

.cs-chip {
  padding: 6px 13px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--white);
  font-size: 11px;
  font-weight: 400;
  color: var(--green);
}

/* ── Related case studies ────────── */
.cs-next-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.cs-next {
  display: block;
  padding: 26px 24px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.cs-next:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(199, 160, 3, 0.5);
}

.cs-next .tag {
  display: block;
  margin-bottom: 10px;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--amber);
}

.cs-next h3 { font-size: 17px; font-weight: 700; color: var(--night); margin-bottom: 8px; }

.cs-next p { font-size: 13px; font-weight: 300; line-height: 1.75; color: var(--midgreen); }

/* ── Inline story toggle on portfolio cards ── */
.pf-story { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border); }

.pf-story-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  font-family: 'Ubuntu', sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.4px;
  color: var(--amber);
  text-align: left;
}

.pf-story-btn svg { flex-shrink: 0; transition: transform 0.3s; }

.pf-story-btn[aria-expanded="true"] svg { transform: rotate(180deg); }

/* Open/closed state is driven entirely by CSS off the button's aria-expanded,
   so the toggle script only flips that attribute and there is no measured
   height to go stale on resize. The open value is a ceiling, not a real
   height: these panels run ~290px, so 600px leaves headroom for translated
   copy without making the ease feel loose. */
.pf-story-panel {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.35s ease;
}

.pf-story-btn[aria-expanded="true"] + .pf-story-panel { max-height: 600px; }

.pf-story-wrap { overflow: hidden; }

.pf-story-inner { padding-top: 14px; }

.pf-story-inner dt {
  margin-bottom: 4px;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--green);
}

.pf-story-inner dd {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 300;
  line-height: 1.8;
  color: var(--midgreen);
}

.pf-story-inner dd:last-of-type { margin-bottom: 14px; }

/* ── Blog listing ────────────────── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  max-width: 1100px;
  margin: 0 auto;
}

.blog-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  transition: transform 0.25s, box-shadow 0.25s;
}

.blog-card::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}

.blog-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.blog-card:hover::after { transform: scaleX(1); }

.blog-card-body { display: flex; flex-direction: column; flex: 1; padding: 26px 24px 28px; }

.blog-cat {
  margin-bottom: 12px;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--amber);
}

.blog-card h2,
.blog-card h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--night);
  margin-bottom: 10px;
}

.blog-card p {
  flex: 1;
  font-size: 13.5px;
  font-weight: 300;
  line-height: 1.8;
  color: var(--midgreen);
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  font-size: 11.5px;
  font-weight: 300;
  color: var(--midgreen);
}

.blog-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--amber); }

/* The newest post spans the full row. */
.blog-card.is-featured { grid-column: 1 / -1; flex-direction: row; align-items: stretch; }
.blog-card.is-featured .blog-card-body { padding: 44px 40px; justify-content: center; }
.blog-card.is-featured h2 { font-size: 28px; line-height: 1.3; }
.blog-card.is-featured p { flex: none; max-width: 620px; font-size: 15px; }

.blog-featured-side {
  position: relative;
  flex: 0 0 38%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background: var(--night);
  overflow: hidden;
}

.blog-featured-side::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 60% 40%, rgba(199, 160, 3, 0.14) 0%, transparent 65%);
}

/* ── Article body ────────────────── */
.post-head { background: var(--night); padding: 34px 5% 80px; }

.post-head-inner { max-width: 760px; margin: 0 auto; }

.post-head h1 {
  margin: 14px 0 20px;
  font-size: 40px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--lily);
}

.post-head h1 em { color: var(--amber); font-style: normal; }

.post-standfirst { font-size: 16px; font-weight: 300; line-height: 1.85; color: var(--border); }

.post-head .blog-meta { margin-top: 26px; color: var(--border); }

.post-body { max-width: 760px; margin: 0 auto; }

.post-body h2 { margin: 52px 0 6px; font-size: 26px; font-weight: 700; color: var(--night); }

.post-body h2:first-child { margin-top: 0; }

.post-body h2 + .divider { margin: 0 0 20px; }

.post-body h3 { margin: 34px 0 10px; font-size: 18px; font-weight: 500; color: var(--green); }

.post-body p { font-size: 15.5px; font-weight: 300; line-height: 1.95; color: var(--midgreen); }

.post-body p + p { margin-top: 18px; }

.post-body strong { font-weight: 500; color: var(--green); }

.post-body a { color: var(--amber); text-decoration: underline; text-underline-offset: 3px; }

.post-body ul,
.post-body ol { margin: 20px 0 0; padding-left: 0; list-style: none; }

.post-body ul li,
.post-body ol li {
  position: relative;
  padding-left: 26px;
  font-size: 15.5px;
  font-weight: 300;
  line-height: 1.95;
  color: var(--midgreen);
}

.post-body ul li + li,
.post-body ol li + li { margin-top: 10px; }

.post-body ul li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 13px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber);
}

.post-body ol { counter-reset: kb-ol; }

.post-body ol li::before {
  counter-increment: kb-ol;
  content: counter(kb-ol);
  position: absolute;
  left: 0;
  top: 4px;
  font-size: 12px;
  font-weight: 700;
  color: var(--amber);
}

/* Practical takeaway box. */
.post-callout {
  margin: 40px 0;
  padding: 26px 28px;
  background: var(--pale);
  border: 1px solid var(--border);
  border-left: 3px solid var(--amber);
  border-radius: var(--radius);
}

.post-callout h4 {
  margin-bottom: 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--amber);
}

.post-callout p { font-size: 14.5px; line-height: 1.85; color: var(--green); }

/* ── Responsive ──────────────────── */
@media (max-width: 900px) {
  .cs-hero h1 { font-size: 34px; }
  .cs-facts { grid-template-columns: repeat(2, 1fr); }
  .cs-impact-grid,
  .cs-next-grid,
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-card.is-featured { flex-direction: column; }
  .blog-card.is-featured .blog-card-body { padding: 32px 26px; }
  .blog-card.is-featured h2 { font-size: 24px; }
  .blog-featured-side { flex: none; min-height: 170px; }
  .post-head h1 { font-size: 30px; }
  .cs-block h2,
  .post-body h2 { font-size: 24px; }
}

@media (max-width: 600px) {
  .cs-hero { padding: 26px 5% 64px; }
  .cs-hero h1 { font-size: 28px; }
  .cs-facts,
  .cs-impact-grid,
  .cs-next-grid,
  .blog-grid,
  .cs-ba { grid-template-columns: 1fr; }
  .cs-block + .cs-block { margin-top: 48px; }
  .cs-quote p { font-size: 16px; }
  .post-head h1 { font-size: 26px; }
  .post-body p,
  .post-body ul li,
  .post-body ol li { font-size: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  .cs-impact,
  .cs-next,
  .blog-card,
  .blog-card::after,
  .pf-story-panel,
  .pf-story-btn svg { transition: none; }
}