/* ============================================================
   PROJECT DETAIL PAGE (project.html)
   Self-contained: /sec-style dark detail sections, scoped under
   .project-detail so the Group nav/offcanvas/footer keep their own
   tokens from styles.css. Headings inherit the Group display font.
   ============================================================ */

.project-detail {
  /* --- local tokens (dark theme, mirrors the /sec detail pages) --- */
  --color-surface-base:   #17130f;
  --color-surface-muted:  #211c18;
  --color-surface-strong: #ff6f20;
  --color-text-primary:   #f5f2ef;
  --color-text-inverse:   #cbc5c7;
  --color-border-muted:   #322b25;
  --radius-md: 8px;
  --radius-pill: 999px;

  --fs-xs: 11px;
  --fs-sm: 13px;
  --fs-md: 16px;
  --fs-lg: 20px;
  --fs-xl: 28px;

  --space-2: 8px;  --space-3: 12px; --space-4: 16px; --space-5: 24px;
  --space-6: 32px; --space-7: 48px; --space-8: 64px; --space-9: 96px; --space-10: 128px;

  --motion-fast: 320ms;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --container-max: 1280px;
  --header-h: 84px;

  background: var(--color-surface-base);
  color: var(--color-text-primary);
}

.project-detail .container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 64px);
}

/* headings use the Group brand display face */
.project-detail h1,
.project-detail h2,
.project-detail h3,
.project-detail .related-card__title,
.project-detail .team-card__name,
.project-detail .highlight__num,
.project-detail .fact__value { font-family: var(--ff-display, "Brix Slab", serif); }

.project-detail .eyebrow {
  display: inline-block;
  font-family: var(--ff-body, "Metropolis", system-ui, sans-serif);
  font-size: var(--fs-xs);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-surface-strong);
  font-weight: 600;
  margin: 0 0 var(--space-4);
}

/* --- buttons --- */
.project-detail .btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 26px;
  font-family: var(--ff-body, "Metropolis", system-ui, sans-serif);
  font-size: var(--fs-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  border-radius: var(--radius-pill);
  transition: transform var(--motion-fast) var(--ease-out), background var(--motion-fast), color var(--motion-fast);
  cursor: pointer;
}
.project-detail .btn--dark { background: var(--color-surface-strong); color: #1a1207; }
.project-detail .btn--dark:hover { transform: translateY(-2px); }
.project-detail .btn .arrow { transition: transform var(--motion-fast) var(--ease-out); }
.project-detail .btn:hover .arrow { transform: translateX(4px); }

/* --- reveal --- */
.project-detail .reveal { opacity: 0; transform: translateY(22px); transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out); }
.project-detail .reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .project-detail .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---- HERO ---- */
.pd-hero {
  position: relative;
  min-height: 78vh;
  padding: calc(var(--header-h) + var(--space-9)) 0 var(--space-9);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  isolation: isolate;
  background: var(--color-surface-base);
}
.pd-hero__media { position: absolute; inset: 0; z-index: -1; }
.pd-hero__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.55) saturate(0.95);
  animation: pdHeroDrift 22s ease-in-out infinite alternate;
}
.pd-hero__media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.2) 30%, rgba(0,0,0,0.85) 100%);
}
@keyframes pdHeroDrift {
  from { transform: scale(1.04) translate3d(0,0,0); }
  to   { transform: scale(1.10) translate3d(-1%, -0.5%, 0); }
}
@media (prefers-reduced-motion: reduce) { .pd-hero__media img { animation: none; transform: scale(1.04); } }
.pd-hero__inner { position: relative; z-index: 1; }
.pd-hero__back {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: var(--fs-xs); letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--color-text-primary); margin-bottom: var(--space-6);
  transition: color var(--motion-fast), gap var(--motion-fast);
}
.pd-hero__back svg { width: 14px; height: 14px; }
.pd-hero__back:hover { color: var(--color-surface-strong); gap: 10px; }
.pd-hero h1 { font-size: clamp(2.8rem, 7vw, 6rem); margin: 0 0 var(--space-5); letter-spacing: -0.02em; line-height: 1.02; max-width: 18ch; }
.pd-hero__sub { max-width: 64ch; font-size: var(--fs-lg); color: var(--color-text-primary); margin-bottom: var(--space-6); line-height: 1.5; }
.pd-hero__meta { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: var(--space-5); color: var(--color-text-primary); font-size: var(--fs-sm); }
.pd-hero__meta li { display: inline-flex; align-items: center; gap: 8px; }
.pd-hero__meta svg { width: 16px; height: 16px; color: var(--color-surface-strong); }

/* ---- FACTS ---- */
.pd-facts { padding: var(--space-10) 0; background: var(--color-surface-muted); border-bottom: 1px solid var(--color-border-muted); }
.pd-facts h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); margin: 0 0 var(--space-7); }
.facts-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--color-border-muted); border: 1px solid var(--color-border-muted); border-radius: var(--radius-md); overflow: hidden; }
@media (max-width: 1024px) { .facts-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px)  { .facts-grid { grid-template-columns: 1fr; } }
.fact { display: flex; flex-direction: column; gap: var(--space-2); padding: var(--space-5); background: var(--color-surface-base); }
.fact__label { font-size: var(--fs-xs); letter-spacing: 0.2em; text-transform: uppercase; color: var(--color-surface-strong); font-weight: 600; }
.fact__value { font-size: var(--fs-lg); color: var(--color-text-primary); font-weight: 500; letter-spacing: -0.01em; }

/* ---- OVERVIEW ---- */
.pd-overview { padding: var(--space-10) 0; background: var(--color-surface-base); }
.pd-overview__grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: var(--space-9); align-items: start; }
@media (max-width: 900px) { .pd-overview__grid { grid-template-columns: 1fr; gap: var(--space-6); } }
.pd-overview h2 { font-size: clamp(2rem, 3.6vw, 3rem); letter-spacing: -0.02em; margin: 0; line-height: 1.08; }
.pd-overview__body p { font-size: var(--fs-lg); line-height: 1.65; color: var(--color-text-inverse); margin: 0 0 var(--space-5); }
.pd-overview__body p:last-child { margin-bottom: 0; }

/* ---- generic section head ---- */
.pd-section-head { max-width: 720px; margin-bottom: var(--space-7); }
.pd-section-head h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); letter-spacing: -0.02em; margin: 0; }

/* ---- SCOPE ---- */
.pd-scope { padding: var(--space-10) 0; background: var(--color-surface-muted); }
.scope-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
@media (max-width: 1024px) { .scope-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px)  { .scope-grid { grid-template-columns: 1fr; } }
.scope-card { padding: var(--space-6); background: var(--color-surface-base); border: 1px solid var(--color-border-muted); border-radius: var(--radius-md); transition: transform var(--motion-fast), border-color var(--motion-fast); }
.scope-card:hover { transform: translateY(-3px); border-color: var(--color-surface-strong); }
.scope-card__badge { display: inline-block; padding: 4px 10px; font-size: var(--fs-xs); letter-spacing: 0.18em; text-transform: uppercase; color: var(--color-surface-strong); background: rgba(255,111,32,0.12); border-radius: var(--radius-pill); font-weight: 700; margin-bottom: var(--space-3); }
.scope-card h3 { font-size: var(--fs-lg); letter-spacing: -0.01em; margin: 0 0 var(--space-2); }
.scope-card p { font-size: var(--fs-sm); color: var(--color-text-inverse); margin: 0; line-height: 1.55; }

/* ---- HIGHLIGHTS ---- */
.pd-highlights { padding: var(--space-9) 0; background: var(--color-surface-base); border-top: 1px solid var(--color-border-muted); border-bottom: 1px solid var(--color-border-muted); }
.pd-highlights .eyebrow { margin-bottom: var(--space-6); }
.highlights-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-7); }
@media (max-width: 800px) { .highlights-grid { grid-template-columns: 1fr 1fr; gap: var(--space-5); } }
.highlight { display: flex; flex-direction: column; gap: var(--space-2); border-top: 1px solid var(--color-surface-strong); padding-top: var(--space-4); }
.highlight__num { font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 500; letter-spacing: -0.03em; color: var(--color-surface-strong); line-height: 1; font-variant-numeric: tabular-nums; }
.highlight__label { font-size: var(--fs-sm); color: var(--color-text-inverse); letter-spacing: 0.04em; }

/* ---- GALLERY ---- */
.pd-gallery { padding: var(--space-10) 0; background: var(--color-surface-base); }
.pd-gallery__grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 220px; gap: var(--space-3); }
@media (max-width: 1024px) { .pd-gallery__grid { grid-template-columns: repeat(3, 1fr); grid-auto-rows: 200px; } }
@media (max-width: 700px)  { .pd-gallery__grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 180px; } }
@media (max-width: 480px)  { .pd-gallery__grid { grid-template-columns: 1fr; grid-auto-rows: 220px; } }
.pd-gallery__tile { position: relative; display: block; overflow: hidden; border-radius: var(--radius-md); cursor: pointer; background: #111; }
.pd-gallery__tile--lg { grid-column: span 2; grid-row: span 2; }
@media (max-width: 700px) { .pd-gallery__tile--lg { grid-row: span 1; } }
.pd-gallery__tile img { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.92); transition: transform 700ms var(--ease-out), filter var(--motion-fast); }
.pd-gallery__tile:hover img, .pd-gallery__tile:focus-visible img { transform: scale(1.06); filter: brightness(1); }

/* ---- TEAM ---- */
.pd-team { padding: var(--space-10) 0; background: var(--color-surface-muted); }
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
@media (max-width: 1024px) { .team-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px)  { .team-grid { grid-template-columns: 1fr; } }
.team-card { padding: var(--space-6); background: var(--color-surface-base); border: 1px solid var(--color-border-muted); border-radius: var(--radius-md); display: flex; flex-direction: column; gap: var(--space-2); }
.team-card__role { font-size: var(--fs-xs); letter-spacing: 0.2em; text-transform: uppercase; color: var(--color-surface-strong); font-weight: 600; }
.team-card__name { font-size: var(--fs-xl); letter-spacing: -0.02em; color: var(--color-text-primary); font-weight: 500; }
.team-card p { font-size: var(--fs-sm); color: var(--color-text-inverse); margin: 0; line-height: 1.55; }

/* ---- RELATED ---- */
.pd-related { padding: var(--space-10) 0; background: var(--color-surface-base); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
@media (max-width: 900px) { .related-grid { grid-template-columns: 1fr; } }
.related-card { display: block; background: var(--color-surface-muted); border: 1px solid var(--color-border-muted); border-radius: var(--radius-md); overflow: hidden; transition: transform var(--motion-fast), border-color var(--motion-fast); }
.related-card:hover { transform: translateY(-4px); border-color: var(--color-surface-strong); }
.related-card__img { aspect-ratio: 16/10; overflow: hidden; }
.related-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 800ms var(--ease-out); }
.related-card:hover .related-card__img img { transform: scale(1.06); }
.related-card__body { padding: var(--space-5); }
.related-card__cat { font-size: var(--fs-xs); letter-spacing: 0.2em; text-transform: uppercase; color: var(--color-surface-strong); font-weight: 600; }
.related-card__title { font-size: var(--fs-xl); letter-spacing: -0.01em; margin: var(--space-2) 0 0; color: var(--color-text-primary); }

/* ---- CTA ---- */
.project-detail .cta { padding: var(--space-10) 0; background: var(--color-surface-muted); }
.project-detail .cta__inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-6); }
.project-detail .cta h2 { font-size: clamp(1.8rem, 3.4vw, 2.8rem); letter-spacing: -0.02em; margin: 0; line-height: 1.12; }
@media (max-width: 700px) { .project-detail .cta__inner { flex-direction: column; align-items: flex-start; } }