/* Catalogue detail pages
   These pages extend the homepage's editorial language without repeating its hero. */

body.catalogue-detail-page {
  min-width: 320px;
  overflow-x: clip;
  background: var(--paper);
  color: var(--ink);
}

.catalogue-detail-page .site-header::before { opacity: 1; }
.catalogue-detail-page .site-header .header-inner { color: var(--ink); }
.catalogue-detail-page .site-header .brand-mark { background: var(--ink); }
.catalogue-detail-page .site-header .menu-button { color: var(--ink); }
.catalogue-detail-page .site-header .brand,
.catalogue-detail-page .site-header .menu-button { z-index: 110; }
.catalogue-detail-page .menu-button-icon::before {
  position: absolute;
  top: 4px;
  right: 0;
  left: 0;
  height: 1.5px;
  background: currentColor;
  content: "";
}
.catalogue-detail-page .scroll-fade-edge { display: none; }

html[data-skin="nocturne"] .catalogue-detail-page .nav-contact .button-copy,
html[data-skin="nocturne"] .catalogue-detail-page .button--dark .button-copy,
html[data-skin="nocturne"] .catalogue-detail-page .footer-cta-button .button-copy { color: #f4efe6; }

.catalogue-detail-main {
  position: relative;
  isolation: isolate;
}

.catalogue-detail-main::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  background:
    radial-gradient(circle at 12% 13%, color-mix(in srgb, var(--accent) 6%, transparent), transparent 24%),
    linear-gradient(color-mix(in srgb, var(--ink) 4%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--ink) 4%, transparent) 1px, transparent 1px);
  background-size: auto, 88px 88px, 88px 88px;
  content: "";
  opacity: .3;
  pointer-events: none;
}

html[data-skin="nocturne"] .catalogue-detail-main::before { opacity: .16; }

.catalogue-detail-hero {
  padding: clamp(104px, 9vw, 132px) 0 clamp(64px, 7vw, 96px);
}

.catalogue-detail-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(440px, 1.12fr);
  gap: clamp(46px, 7vw, 112px);
  align-items: center;
}

.catalogue-detail-kicker,
.catalogue-detail-label,
.catalogue-detail-stat span {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: .69rem;
  line-height: 1.45;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.catalogue-detail-kicker {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  margin: 0 0 22px;
  color: var(--muted);
}

.catalogue-detail-kicker::before {
  width: 7px;
  height: 7px;
  background: var(--accent);
  content: "";
}

.catalogue-detail-hero h1 {
  max-width: 14ch;
  margin: 0;
  font-size: clamp(3.2rem, 5.6vw, 5.8rem);
  line-height: .92;
  letter-spacing: -.068em;
  text-wrap: balance;
}

.catalogue-detail-lede {
  max-width: 47ch;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.25vw, 1.25rem);
  line-height: 1.55;
}

.catalogue-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.catalogue-detail-actions .button { min-height: 48px; }

.catalogue-detail-back {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  transition: border-color 180ms ease, background-color 180ms ease;
}

.catalogue-detail-back:hover,
.catalogue-detail-back:focus-visible {
  border-color: color-mix(in srgb, var(--ink) 30%, transparent);
  background: color-mix(in srgb, var(--ink) 5%, transparent);
}

.catalogue-detail-visual {
  position: relative;
  min-width: 0;
  margin: 0;
}

.catalogue-detail-visual::before {
  position: absolute;
  inset: 8% -5% -8% 9%;
  border-radius: 46% 54% 54% 46% / 52% 43% 57% 48%;
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  filter: blur(42px);
  content: "";
  opacity: .55;
}

.catalogue-detail-visual img {
  position: relative;
  display: block;
  width: 100%;
  height: clamp(400px, 40vw, 560px);
  aspect-ratio: 16 / 11;
  object-fit: cover;
  border-radius: clamp(24px, 3vw, 44px);
  box-shadow: 0 34px 100px color-mix(in srgb, var(--ink) 16%, transparent);
}

.catalogue-detail-statline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: -38px 28px 0;
  padding: 18px 0;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--ink) 12%, transparent);
  border-radius: 20px;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  box-shadow: 0 18px 48px color-mix(in srgb, var(--ink) 10%, transparent);
  backdrop-filter: blur(18px);
}

.catalogue-detail-stat {
  min-width: 0;
  padding: 0 18px;
}

.catalogue-detail-stat + .catalogue-detail-stat { border-left: 1px solid var(--line); }
.catalogue-detail-stat span { display: block; color: var(--muted); }
.catalogue-detail-stat strong { display: block; margin-top: 5px; font-size: .98rem; }

/* ---- XO3D-inspired case study sections ---- */

.catalogue-meta {
  padding: 0 0 clamp(28px, 4vw, 48px);
}

.catalogue-meta-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--line);
  border-radius: clamp(16px, 1.6vw, 22px);
  overflow: hidden;
  background: color-mix(in srgb, var(--surface) 78%, transparent);
}

.catalogue-meta-grid > div {
  display: grid;
  gap: 6px;
  min-width: 0;
  padding: clamp(16px, 1.8vw, 22px) clamp(14px, 1.4vw, 18px);
  border-right: 1px solid var(--line);
}

.catalogue-meta-grid > div:last-child { border-right: 0; }

.catalogue-meta-grid span {
  color: var(--muted);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: .58rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.catalogue-meta-grid strong {
  color: var(--ink);
  font-size: .92rem;
  font-weight: 650;
  line-height: 1.3;
  letter-spacing: -.02em;
}

.catalogue-deliverables {
  padding: clamp(36px, 5vw, 64px) 0;
}

.catalogue-deliverables-grid {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}

.catalogue-deliverables-grid h2 {
  margin: 10px 0 0;
  max-width: 14ch;
  font-size: clamp(2rem, 3.4vw, 3rem);
  line-height: .98;
  letter-spacing: -.045em;
}

.catalogue-deliverables-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.catalogue-deliverables-list li {
  position: relative;
  padding: 16px 0 16px 28px;
  border-bottom: 1px solid var(--line);
  color: color-mix(in srgb, var(--ink) 86%, transparent);
  font-size: 1.02rem;
  line-height: 1.45;
}

.catalogue-deliverables-list li::before {
  position: absolute;
  left: 0;
  top: 1.15em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  content: "";
  transform: translateY(-50%);
}

.catalogue-brief {
  padding: clamp(48px, 7vw, 96px) 0;
  border-block: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface-alt, var(--surface)) 70%, transparent);
}

.catalogue-brief-shell {
  display: grid;
  gap: clamp(32px, 4vw, 52px);
}

.catalogue-brief-head {
  max-width: 52rem;
}

.catalogue-brief-head h2 {
  margin: 10px 0 0;
  max-width: 18ch;
  font-size: clamp(2.1rem, 3.8vw, 3.4rem);
  line-height: .98;
  letter-spacing: -.045em;
}

.catalogue-brief-head > p {
  margin: 16px 0 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.55;
}

.catalogue-insights {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 22px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.catalogue-insights li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  min-width: 0;
  padding: clamp(18px, 2vw, 24px);
  border: 1px solid var(--line);
  border-radius: clamp(16px, 1.5vw, 20px);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
}

.catalogue-insights li > span {
  color: var(--accent);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: .72rem;
  letter-spacing: .08em;
}

.catalogue-insights h3 {
  margin: 0 0 8px;
  font-size: 1.15rem;
  letter-spacing: -.03em;
  line-height: 1.15;
}

.catalogue-insights p {
  margin: 0;
  color: var(--muted);
  font-size: .95rem;
  line-height: 1.5;
}

.catalogue-chapters {
  padding: clamp(56px, 7vw, 104px) 0;
}

.catalogue-chapters-head {
  margin-bottom: clamp(28px, 4vw, 48px);
}

.catalogue-chapters-head h2 {
  margin: 10px 0 0;
  max-width: 16ch;
  font-size: clamp(2.1rem, 3.6vw, 3.2rem);
  line-height: .98;
  letter-spacing: -.045em;
}

.catalogue-chapter {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(22px, 4vw, 56px);
  align-items: center;
  padding-block: clamp(28px, 4vw, 48px);
  border-top: 1px solid var(--line);
}

.catalogue-chapter--flip {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
}

.catalogue-chapter--flip .catalogue-chapter-copy { order: 2; }
.catalogue-chapter--flip .catalogue-chapter-media { order: 1; }

.catalogue-chapter-index {
  display: block;
  margin-bottom: 14px;
  color: var(--accent);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: .72rem;
  letter-spacing: .12em;
}

.catalogue-chapter-copy h3 {
  margin: 0;
  font-size: clamp(1.55rem, 2.4vw, 2.2rem);
  letter-spacing: -.04em;
  line-height: 1.05;
}

.catalogue-chapter-copy p {
  margin: 14px 0 0;
  max-width: 38ch;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.55;
}

.catalogue-chapter-media {
  margin: 0;
  overflow: hidden;
  border-radius: clamp(16px, 1.8vw, 24px);
  background: var(--surface-alt, #e8e4dc);
  border: 1px solid color-mix(in srgb, var(--ink) 8%, transparent);
}

.catalogue-chapter-media img,
.catalogue-chapter-media video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
}

.catalogue-approach {
  padding: clamp(48px, 6vw, 88px) 0;
  border-top: 1px solid var(--line);
}

.catalogue-approach-head {
  margin-bottom: clamp(24px, 3vw, 40px);
}

.catalogue-approach-head h2 {
  margin: 10px 0 0;
  max-width: 16ch;
  font-size: clamp(2rem, 3.4vw, 3rem);
  line-height: .98;
  letter-spacing: -.045em;
}

.catalogue-approach-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.catalogue-approach-grid article {
  min-width: 0;
  padding: clamp(22px, 2.4vw, 32px) clamp(16px, 1.8vw, 28px);
}

.catalogue-approach-grid article + article {
  border-left: 1px solid var(--line);
}

.catalogue-approach-grid article > span {
  display: block;
  margin-bottom: 18px;
  color: var(--accent);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: .62rem;
  letter-spacing: .12em;
}

.catalogue-approach-grid h3 {
  margin: 0;
  font-size: clamp(1.15rem, 1.5vw, 1.4rem);
  letter-spacing: -.03em;
  line-height: 1.15;
}

.catalogue-approach-grid p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: .94rem;
  line-height: 1.5;
}

.catalogue-related {
  padding: clamp(40px, 5vw, 72px) 0 clamp(28px, 4vw, 48px);
}

.catalogue-related-shell {
  display: grid;
  gap: 22px;
}

.catalogue-related-shell h2 {
  margin: 10px 0 0;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  letter-spacing: -.04em;
}

.catalogue-related-card {
  display: grid;
  grid-template-columns: minmax(180px, .7fr) minmax(0, 1.3fr);
  gap: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: clamp(16px, 1.8vw, 24px);
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  color: inherit;
  text-decoration: none;
  transition: border-color 180ms ease, transform 180ms ease;
}

.catalogue-related-card:hover,
.catalogue-related-card:focus-visible {
  border-color: color-mix(in srgb, var(--ink) 28%, transparent);
  transform: translateY(-2px);
}

.catalogue-related-card img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 160px;
  object-fit: cover;
}

.catalogue-related-card > div {
  display: grid;
  gap: 8px;
  align-content: center;
  padding: clamp(18px, 2.4vw, 32px);
}

.catalogue-related-card > div > p {
  margin: 0;
  color: var(--muted);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: .58rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.catalogue-related-card h3 {
  margin: 0;
  max-width: 16ch;
  font-size: clamp(1.35rem, 2vw, 1.85rem);
  letter-spacing: -.035em;
  line-height: 1.08;
}

.catalogue-related-card > div > span {
  margin-top: 8px;
  color: var(--ink);
  font-weight: 650;
  font-size: .92rem;
}

.catalogue-detail-close h2,
.catalogue-chapters-head h2,
.catalogue-brief-head h2,
.catalogue-approach-head h2,
.catalogue-deliverables-grid h2,
.catalogue-related-shell h2 {
  text-wrap: balance;
}

.catalogue-detail-close { padding: 0 0 clamp(82px, 10vw, 150px); }

html[data-skin="nocturne"] .catalogue-meta-grid,
html[data-skin="nocturne"] .catalogue-insights li,
html[data-skin="nocturne"] .catalogue-related-card {
  background: color-mix(in srgb, var(--surface) 45%, transparent);
}

html[data-skin="nocturne"] .catalogue-brief {
  background: color-mix(in srgb, var(--surface) 28%, transparent);
}

.catalogue-detail-close-shell {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 36px;
  align-items: end;
  padding: clamp(34px, 5vw, 70px);
  overflow: hidden;
  border-radius: clamp(28px, 3.4vw, 48px);
  background:
    radial-gradient(circle at 82% 24%, rgba(88, 111, 255, .3), transparent 28%),
    #0c1835;
  color: #f4efe6;
  box-shadow: 0 30px 88px rgba(6, 13, 32, .16);
}

.catalogue-detail-close-shell::before {
  position: absolute;
  inset: auto -7% -55% auto;
  width: 44vw;
  height: 44vw;
  border: 1px solid rgba(171, 187, 255, .2);
  border-radius: 50%;
  box-shadow: 0 0 0 48px rgba(171, 187, 255, .06), 0 0 0 96px rgba(171, 187, 255, .035);
  content: "";
  pointer-events: none;
}

.catalogue-detail-close h2 { position: relative; max-width: 10ch; }
.catalogue-detail-close-copy { position: relative; display: grid; gap: 18px; justify-items: start; max-width: 390px; }
.catalogue-detail-close-copy p { margin: 0; color: rgba(244, 239, 230, .72); font-size: 1.04rem; line-height: 1.56; }

.catalogue-detail-page .site-footer { padding-top: 0; }

@media (max-width: 1100px) {
  .catalogue-meta-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .catalogue-meta-grid > div:nth-child(3n) { border-right: 0; }
  .catalogue-meta-grid > div:nth-child(n + 4) { border-top: 1px solid var(--line); }
  .catalogue-approach-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .catalogue-approach-grid article:nth-child(2n) { border-right: 0; }
  .catalogue-approach-grid article:nth-child(n + 3) { border-top: 1px solid var(--line); }
  .catalogue-approach-grid article:nth-child(3) { border-left: 0; }
}

@media (max-width: 980px) {
  .catalogue-detail-hero-grid { grid-template-columns: 1fr; }
  .catalogue-detail-hero h1 { max-width: 12ch; }
  .catalogue-detail-visual { width: min(100%, 780px); }
  .catalogue-deliverables-grid,
  .catalogue-insights,
  .catalogue-chapter,
  .catalogue-chapter--flip { grid-template-columns: 1fr; }
  .catalogue-chapter--flip .catalogue-chapter-copy,
  .catalogue-chapter--flip .catalogue-chapter-media { order: initial; }
  .catalogue-related-card { grid-template-columns: 1fr; }
  .catalogue-detail-close-shell { grid-template-columns: 1fr; align-items: start; }
}

@media (max-width: 700px) {
  .catalogue-detail-hero { padding-top: 108px; }
  .catalogue-detail-hero h1 { font-size: clamp(2.8rem, 13vw, 4.4rem); }
  .catalogue-detail-lede { margin-top: 22px; }
  .catalogue-detail-actions { display: grid; }
  .catalogue-detail-actions > * { width: 100%; justify-content: center; }
  .catalogue-detail-visual img { height: min(72vw, 400px); aspect-ratio: 4 / 3; border-radius: 24px; }
  .catalogue-meta-grid { grid-template-columns: 1fr 1fr; }
  .catalogue-meta-grid > div { border-right: 1px solid var(--line); }
  .catalogue-meta-grid > div:nth-child(2n) { border-right: 0; }
  .catalogue-meta-grid > div:nth-child(n + 3) { border-top: 1px solid var(--line); }
  .catalogue-approach-grid { grid-template-columns: 1fr; }
  .catalogue-approach-grid article,
  .catalogue-approach-grid article + article,
  .catalogue-approach-grid article:nth-child(3) {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-inline: 0;
  }
  .catalogue-approach-grid article:first-child { border-top: 0; }
  .catalogue-detail-close-shell { padding: 30px 24px; border-radius: 28px; }
  .catalogue-detail-close h2 { font-size: clamp(2.4rem, 11vw, 3.8rem); }
}

@media (prefers-reduced-motion: reduce) {
  .catalogue-detail-back,
  .catalogue-detail-actions .button,
  .catalogue-related-card { transition: none; }
}