/* ============================================================
   Brainz — Case Detail · Luxury / Editorial / Storytelling
   Extends kit.css. Loaded AFTER it (or concatenated).
   ============================================================ */

:root {
  /* Cream accent for luxury editorial highlights (vellum on dark) */
  --cream-soft:     #F2EBD8;
  --cream-warm:     #E8DFC8;
  --cream-dim:      #A89B7E;
  --gold-quiet:     oklch(0.78 0.05 75);
  --gold-glow:      oklch(0.88 0.10 80);

  /* Editorial spacing */
  --chapter-pad:    clamp(5rem, 12vw, 10rem);
  --reading-meas:   38rem;
  --display-meas:   56rem;
}

/* ============================================================
   Hero — "movie poster" pull-line
   ============================================================ */

.case-hero {
  padding: 9rem 0 5rem;
  position: relative;
  overflow: hidden;
}
.case-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 20%, rgba(139, 92, 246, 0.07), transparent 55%),
    radial-gradient(ellipse 70% 50% at 80% 30%, rgba(43, 166, 255, 0.05), transparent 55%);
  pointer-events: none;
  z-index: 0;
}
.case-hero > * { position: relative; z-index: 1; }

.case-hero__chapter {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 3rem;
  display: flex; align-items: center; gap: 0.875rem;
}
.case-hero__chapter::before, .case-hero__chapter::after {
  content: ""; flex: 1; max-width: 4rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--rule-strong), transparent);
}
.case-hero__chapter a {
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.12);
  padding-bottom: 1px;
  transition: color 0.3s var(--ease-smooth), border-color 0.3s var(--ease-smooth);
}
.case-hero__chapter a:hover {
  color: var(--cream-soft);
  border-bottom-color: var(--cream-soft);
}
.case-hero__chapter .n {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: 1.125rem;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--cream-soft);
}

.case-hero__pull {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(2.5rem, 6.5vw, 5.25rem);
  line-height: 1.02;
  letter-spacing: -0.022em;
  color: var(--text-primary);
  margin: 0 0 3rem;
  text-wrap: balance;
  max-width: var(--display-meas);
  hanging-punctuation: first last;
  font-feature-settings: "lnum", "kern", "liga", "calt", "ss01";
}
.case-hero__pull em {
  font-style: italic;
  color: var(--cream-soft);
  font-weight: 400;
}
.case-hero__pull .accent {
  font-style: italic;
  background: linear-gradient(135deg, var(--cream-soft), var(--gold-quiet) 60%, var(--brand-light));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  font-weight: 400;
}

.case-hero__signoff {
  display: flex; align-items: baseline; gap: 1.25rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}
.case-hero__signoff .name {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(1.5rem, 2.5vw, 1.875rem);
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin: 0;
}
.case-hero__signoff .meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0;
}
.case-hero__signoff .meta span.dot {
  color: var(--text-faint);
  margin: 0 0.5rem;
}

/* ============================================================
   Meta strip — refined
   ============================================================ */
.case-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  margin: 5rem 0 0;
}
.case-meta__cell {
  padding: 1.5rem 1.5rem 1.5rem 0;
  border-right: 1px solid var(--rule);
}
.case-meta__cell:last-child { border-right: none; }
.case-meta__label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 0.625rem;
}
.case-meta__value {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.4;
  color: var(--cream-soft);
  margin: 0;
  letter-spacing: -0.005em;
}
.case-meta__value--mono {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  color: var(--text-primary);
}

/* ============================================================
   The Proof Shelf
   Big numbers, editorial scale, serif italic
   ============================================================ */
.proof-shelf {
  padding: var(--chapter-pad) 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  position: relative;
}
.proof-shelf__header {
  text-align: center;
  margin-bottom: 5rem;
}
.proof-shelf__overline {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold-quiet);
  margin: 0 0 1.25rem;
  display: inline-flex; align-items: center; gap: 0.875rem;
}
.proof-shelf__overline::before, .proof-shelf__overline::after {
  content: ""; width: 1.5rem; height: 1px;
  background: var(--gold-quiet); opacity: 0.5;
}
.proof-shelf__title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-style: italic;
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  letter-spacing: -0.005em;
  color: var(--text-secondary);
  margin: 0;
  max-width: 32rem;
  margin-left: auto; margin-right: auto;
}

.proof-shelf__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
}
.proof-shelf__cell {
  padding: 2.5rem 1.5rem 2.5rem 0;
  border-right: 1px solid var(--rule);
  position: relative;
  min-width: 0;
  overflow-wrap: break-word;
}
.proof-shelf__cell:last-child { border-right: none; padding-right: 0; }
.proof-shelf__cell::before {
  content: attr(data-n);
  position: absolute;
  top: 0; left: 0;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.875rem;
  color: var(--gold-quiet);
  opacity: 0.6;
}
.proof-shelf__value {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2.75rem, 5vw, 4rem);
  letter-spacing: -0.035em;
  color: var(--cream-soft);
  margin: 0 0 0.875rem;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.proof-shelf__value em {
  font-style: italic;
  font-weight: 300;
  color: var(--text-primary);
}
.proof-shelf__label {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  color: var(--text-secondary);
  line-height: 1.4;
  margin: 0;
  max-width: 14rem;
}

/* ============================================================
   Chapters
   ============================================================ */
.chapter {
  padding: var(--chapter-pad) 0;
  position: relative;
}
.chapter:not(:last-child) {
  border-bottom: 1px solid var(--rule);
}
.chapter__inner {
  display: grid;
  grid-template-columns: 14rem 1fr;
  gap: 4rem;
  max-width: 60rem;
  margin: 0 auto;
}
.chapter__rail {
  position: sticky;
  top: 7rem;
  align-self: start;
}
.chapter__rail-mark {
  font-family: var(--font-serif);
  font-weight: 400;
  font-style: italic;
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  color: var(--cream-soft);
  margin: 0 0 0.5rem;
}
.chapter__rail-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0;
}
.chapter__rail-dash {
  display: block;
  width: 2rem; height: 1px;
  background: var(--gold-quiet);
  margin: 1.25rem 0 1rem;
  opacity: 0.6;
}

.chapter__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  letter-spacing: -0.018em;
  line-height: 1.08;
  color: var(--text-primary);
  margin: 0 0 2.5rem;
  text-wrap: pretty;
  font-feature-settings: "lnum", "liga", "ss01";
}
.chapter__title em {
  font-style: italic;
  color: var(--cream-soft);
}

.chapter p {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin: 0 0 1.5rem;
  max-width: var(--reading-meas);
  text-wrap: pretty;
}
.chapter p strong {
  color: var(--text-primary);
  font-weight: 600;
}
.chapter p em {
  font-style: italic;
  color: var(--cream-soft);
}
.chapter p a {
  color: var(--cream-soft);
  text-decoration: none;
  background-image: linear-gradient(90deg, var(--gold-quiet), var(--brand-light));
  background-size: 100% 1px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  padding-bottom: 2px;
}
.chapter p code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: rgba(232, 223, 200, 0.08);
  border: 1px solid var(--rule);
  padding: 0.125em 0.4em;
  border-radius: 3px;
  color: var(--cream-soft);
}

/* Drop cap — only on first paragraph after .chapter__title */
.chapter__body > p:first-of-type::first-letter {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: 4.25rem;
  line-height: 0.85;
  float: left;
  margin: 0.25rem 0.75rem -0.35rem 0;
  color: var(--cream-soft);
  letter-spacing: -0.04em;
}

/* ============================================================
   Moves list — editorial roman numerals
   ============================================================ */
.moves {
  margin: 0; padding: 0; list-style: none;
  max-width: var(--reading-meas);
}
.moves__item {
  padding: 2.5rem 0 2.25rem;
  border-top: 1px solid rgba(232, 223, 200, 0.10);
}
.moves__item:first-child {
  border-top: none; padding-top: 0;
}
.moves__roman {
  font-family: var(--font-serif);
  font-weight: 400;
  font-style: italic;
  font-size: 1.125rem;
  letter-spacing: 0.04em;
  color: var(--gold-quiet);
  margin: 0 0 1rem;
  display: block;
}
.moves__lead {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.5rem;
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin: 0 0 1rem;
  text-wrap: pretty;
}
.moves__body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin: 0;
}
.moves__body strong { color: var(--text-primary); font-weight: 600; }
.moves__body em { font-style: italic; color: var(--cream-soft); }
.moves__body code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: rgba(232, 223, 200, 0.08);
  border: 1px solid var(--rule);
  padding: 0.125em 0.4em;
  border-radius: 3px;
  color: var(--cream-soft);
}
.moves__body a {
  color: var(--cream-soft);
  text-decoration: none;
  background-image: linear-gradient(90deg, var(--gold-quiet), var(--brand-light));
  background-size: 100% 1px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  padding-bottom: 2px;
}

/* ============================================================
   Outcomes — editorial ledger
   ============================================================ */
.outcomes {
  margin: 0; padding: 0; list-style: none;
  border-top: 1px solid var(--rule);
  max-width: var(--reading-meas);
}
.outcomes__item {
  display: grid;
  grid-template-columns: 11rem 1fr;
  gap: 2.25rem;
  align-items: baseline;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--rule);
}
.outcomes__metric {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 2rem;
  letter-spacing: -0.025em;
  color: var(--cream-soft);
  margin: 0;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.outcomes__metric em {
  font-style: italic;
  color: var(--text-primary);
}
.outcomes__body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin: 0;
}

/* ============================================================
   Pull quote — full-bleed editorial moment
   ============================================================ */
.case-quote {
  padding: var(--chapter-pad) 0;
  position: relative;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  text-align: center;
}
.case-quote::before {
  content: "";
  position: absolute;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 130%; height: 130%;
  background: radial-gradient(ellipse 50% 50% at 50% 50%, rgba(232, 223, 200, 0.045), transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.case-quote > * { position: relative; z-index: 1; }
.case-quote__mark {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 5rem;
  line-height: 1;
  color: var(--gold-quiet);
  opacity: 0.6;
  display: block;
  margin: 0 0 1.5rem;
}
.case-quote__body {
  font-family: var(--font-serif);
  font-weight: 300;
  font-style: italic;
  font-size: clamp(1.875rem, 3.5vw, 2.625rem);
  line-height: 1.25;
  letter-spacing: -0.018em;
  color: var(--cream-soft);
  margin: 0 auto 2.5rem;
  max-width: 44rem;
  text-wrap: balance;
}
.case-quote__rule {
  display: inline-block;
  width: 2.5rem; height: 1px;
  background: var(--gold-quiet);
  opacity: 0.5;
  margin: 0 0 1.5rem;
}
.case-quote__attr {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0;
}
.case-quote__attr strong {
  color: var(--cream-soft);
  font-weight: 600;
}

/* ============================================================
   Image slot — refined frame
   ============================================================ */
.case-image {
  margin: 5rem 0;
  padding: 0;
}
.case-image__frame {
  position: relative;
  border: 1px solid var(--rule);
  background: linear-gradient(135deg, rgba(232, 223, 200, 0.025), rgba(43, 166, 255, 0.025));
  aspect-ratio: 16 / 9;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.case-image__frame::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(135deg, transparent 0 8px, rgba(255,255,255,0.012) 8px 9px);
  pointer-events: none;
}
.case-image__hint {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  position: relative;
  z-index: 1;
  text-align: center;
}
.case-image__hint .label {
  display: block;
  color: var(--cream-soft);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  text-transform: none;
  margin-bottom: 0.5rem;
}
.case-image__caption {
  margin: 1.25rem 0 0;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.9375rem;
  color: var(--text-muted);
  text-align: center;
}

/* ============================================================
   Stack — refined chip
   ============================================================ */
.case-stack {
  display: flex; flex-wrap: wrap; gap: 0.625rem;
  margin: 0; padding: 0; list-style: none;
  max-width: var(--reading-meas);
}
.case-stack__item {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--cream-soft);
  padding: 0.5rem 0.875rem;
  border: 1px solid rgba(232, 223, 200, 0.22);
  border-radius: 999px;
  background: rgba(232, 223, 200, 0.03);
}

/* ============================================================
   Closing signature
   ============================================================ */
.case-signoff {
  padding: var(--chapter-pad) 0 6rem;
  text-align: center;
  border-top: 1px solid var(--rule);
}
.case-signoff__mark {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold-quiet);
  margin: 0 0 1.5rem;
}
.case-signoff__signed {
  font-family: var(--font-serif);
  font-weight: 400;
  font-style: italic;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  letter-spacing: -0.015em;
  color: var(--cream-soft);
  margin: 0 0 0.5rem;
}
.case-signoff__by {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0;
}

/* ============================================================
   Placeholder block
   ============================================================ */
.case-placeholder {
  border: 1px dashed rgba(232, 223, 200, 0.22);
  background: rgba(232, 223, 200, 0.02);
  border-radius: 4px;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: var(--reading-meas);
}
.case-placeholder::before {
  content: "// to be filled by Brainz ";
  color: var(--gold-quiet);
  font-weight: 600;
  letter-spacing: 0.05em;
}
.case-placeholder strong {
  color: var(--cream-soft);
  font-weight: 600;
}

/* ============================================================
   Next chapter / pager
   ============================================================ */
.case-pager {
  padding: 4rem 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.case-pager__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}
.case-pager__cell {
  display: flex; flex-direction: column;
  gap: 0.875rem;
  text-decoration: none;
  transition: transform 0.4s var(--ease-smooth);
}
.case-pager__cell--next {
  text-align: right;
  align-items: flex-end;
}
.case-pager__cell:hover { transform: translateY(-2px); }
.case-pager__dir {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0;
}
.case-pager__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-style: italic;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.1;
  transition: color 0.3s var(--ease-smooth);
}
.case-pager__cell:hover .case-pager__title {
  color: var(--cream-soft);
}
.case-pager__teaser {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
  max-width: 22rem;
}

.case-pager__home {
  text-align: center;
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid var(--rule);
}
.case-pager__home a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cream-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-quiet);
  padding-bottom: 2px;
  transition: color 0.3s var(--ease-smooth);
}
.case-pager__home a:hover { color: var(--gold-glow); }

/* ============================================================
   Closing CTA
   ============================================================ */
.case-cta {
  padding: var(--chapter-pad) 0;
  text-align: center;
  position: relative;
}
.case-cta__overline {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold-quiet);
  margin: 0 0 1.5rem;
  display: inline-flex; align-items: center; gap: 0.875rem;
}
.case-cta__overline::before, .case-cta__overline::after {
  content: ""; width: 2rem; height: 1px;
  background: var(--gold-quiet); opacity: 0.5;
}
.case-cta__title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.018em;
  line-height: 1.1;
  color: var(--text-primary);
  margin: 0 0 1rem;
  text-wrap: balance;
  max-width: 32rem;
  margin-left: auto; margin-right: auto;
}
.case-cta__title em {
  font-style: italic;
  color: var(--cream-soft);
}
.case-cta__sub {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 300;
  font-size: 1.125rem;
  line-height: 1.55;
  color: var(--text-secondary);
  margin: 0 auto 2.5rem;
  max-width: 28rem;
}
.case-cta__actions {
  display: flex; gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .chapter__inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .chapter__rail {
    position: static; display: flex; align-items: center; gap: 1rem;
  }
  .chapter__rail-dash { display: none; }
  .proof-shelf__grid { grid-template-columns: repeat(2, 1fr); }
  .proof-shelf__cell:nth-child(odd) { border-right: 1px solid var(--rule); }
  .proof-shelf__cell:nth-child(even) { border-right: none; }
  .case-meta { grid-template-columns: repeat(2, 1fr); }
  .case-meta__cell:nth-child(2n) { border-right: none; }
}
@media (max-width: 600px) {
  .case-pager__inner { grid-template-columns: 1fr; }
  .case-pager__cell--next { text-align: left; align-items: flex-start; }
  .outcomes__item { grid-template-columns: 1fr; gap: 0.5rem; }
}

/* ============================================================
   Tweaks for the cases.html / portfolio.html index pages
   to feel a touch more luxe alongside the new detail pages
   ============================================================ */
.port-article__head h2,
.case-article h3 {
  font-family: var(--font-serif);
  font-weight: 400;
}