/* =========================================
   PORTFOLIO — STYLES DÉDIÉS
   ========================================= */

/* ---- Hero Portfolio ---- */
.portfolio-hero {
  padding-top: calc(80px + var(--space-xl));
  padding-bottom: var(--space-lg);
}

.portfolio-hero__content {
  max-width: 760px;
}

.portfolio-hero__title {
  margin: var(--space-sm) 0 var(--space-md);
  opacity: 0;
}

.portfolio-hero__title .line {
  display: block;
  overflow: hidden;
}

.portfolio-hero__desc {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: var(--color-slate);
  max-width: 500px;
  opacity: 0;
}

.portfolio-hero__line {
  margin-top: var(--space-lg);
  overflow: hidden;
}

/* ---- Filtres ---- */
.portfolio-filters-section {
  padding: var(--space-md) 0;
}

.portfolio-filters {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-slate);
  border: 1px solid rgba(106, 123, 155, 0.25);
  background: transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
  cursor: none;
}

.filter-btn:hover {
  color: var(--color-ivory);
  border-color: rgba(106, 123, 155, 0.5);
}

.filter-btn.active {
  background: var(--color-volt);
  color: var(--color-noir);
  border-color: var(--color-volt);
}

/* ---- Grille masonry ---- */
.portfolio-archive-section {
  padding-top: var(--space-sm);
}

.portfolio-masonry {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
}

.portfolio-card {
  grid-column: span var(--card-span, 6);
}

/* Responsive grid */
@media (max-width: 1024px) {
  .portfolio-card { grid-column: span 6; }
}
@media (max-width: 640px) {
  .portfolio-masonry { grid-template-columns: 1fr; }
  .portfolio-card { grid-column: span 1; }
}

/* ---- Card ---- */
.portfolio-card__link {
  display: block;
  text-decoration: none;
}

.portfolio-card__media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 3;
  background: var(--color-navy);
}

.portfolio-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1);
  transition: transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
}

.portfolio-card__placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-navy) 0%, rgba(13,27,62,0.5) 100%);
}

/* Overlay reveal */
.portfolio-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6, 11, 24, 0.95) 0%, rgba(6, 11, 24, 0.4) 60%, transparent 100%);
  display: flex;
  align-items: flex-end;
  padding: var(--space-md);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.portfolio-card__overlay-inner {
  transform: translateY(16px);
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

.portfolio-card:hover .portfolio-card__media img { transform: scale(1.06); }
.portfolio-card:hover .portfolio-card__overlay    { opacity: 1; }
.portfolio-card:hover .portfolio-card__overlay-inner { transform: translateY(0); }

.portfolio-card__tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-volt);
  margin-bottom: 0.4rem;
}

.portfolio-card__title {
  font-family: var(--font-title);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 700;
  color: var(--color-ivory);
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.portfolio-card__excerpt {
  font-size: 0.82rem;
  color: rgba(244, 239, 230, 0.7);
  margin-bottom: 0.75rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.portfolio-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-mint);
}

/* Méta sous la carte */
.portfolio-card__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0 0;
  font-size: 0.78rem;
}

.portfolio-card__meta-cat {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-volt);
}

.portfolio-card__meta-title {
  color: var(--color-ivory);
  font-weight: 500;
  flex: 1;
}

.portfolio-card__meta-year {
  color: var(--color-slate);
  font-size: 0.7rem;
}

/* Carte masquée par le filtre */
.portfolio-card.is-hidden {
  pointer-events: none;
}

/* Message vide */
.portfolio-empty {
  text-align: center;
  padding: var(--space-xl) 0;
  color: var(--color-slate);
}

/* =========================================
   SINGLE — CASE STUDY
   ========================================= */

/* Breadcrumb */
.case-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--color-slate);
  margin-bottom: var(--space-lg);
  padding-top: calc(80px + var(--space-lg));
}

.case-breadcrumb a {
  color: var(--color-slate);
  transition: color var(--transition-fast);
}

.case-breadcrumb a:hover { color: var(--color-volt); }

/* Layout hero split */
.case-hero__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.case-hero__tag { margin-bottom: var(--space-sm); }

.case-hero__title {
  margin: var(--space-sm) 0 var(--space-md);
  opacity: 0;
}

.case-hero__title .line { display: block; overflow: hidden; }

.case-hero__intro {
  font-size: 1.05rem;
  color: var(--color-ivory);
  margin-bottom: var(--space-lg);
  opacity: 0;
}

.case-hero__media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,0.5);
}

.case-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Méta */
.case-meta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  padding: var(--space-md) 0;
  border-top: 1px solid rgba(106, 123, 155, 0.2);
  border-bottom: 1px solid rgba(106, 123, 155, 0.2);
}

.case-meta__item dt {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-slate);
  margin-bottom: 0.25rem;
}

.case-meta__item dd {
  font-size: 0.9rem;
  color: var(--color-ivory);
  font-weight: 500;
}

.case-meta__link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--color-volt);
  font-weight: 600;
  transition: gap var(--transition-fast);
}

.case-meta__link:hover { gap: 0.5rem; }

/* Challenge / Solution */
.case-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.case-split__block h2 { margin: var(--space-sm) 0 var(--space-sm); }
.case-split__block p  { font-size: 1rem; line-height: 1.8; }

/* Contenu éditeur */
.case-content {
  max-width: 780px;
  margin: 0 auto;
}

.case-content h2 { color: var(--color-ivory); margin: var(--space-lg) 0 var(--space-sm); font-size: 1.75rem; }
.case-content h3 { color: var(--color-ivory); margin: var(--space-md) 0 0.5rem; }
.case-content p  { color: var(--color-slate); line-height: 1.85; margin-bottom: 1rem; }
.case-content ul, .case-content ol {
  padding-left: 1.5rem;
  color: var(--color-slate);
  margin-bottom: 1rem;
}
.case-content li  { margin-bottom: 0.4rem; }
.case-content img { border-radius: var(--radius-md); margin: var(--space-md) 0; width: 100%; }
.case-content a   { color: var(--color-volt); border-bottom: 1px solid rgba(197,241,53,0.3); transition: border-color var(--transition-fast); }
.case-content a:hover { border-color: var(--color-volt); }

/* Galerie */
.case-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.case-gallery__item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  aspect-ratio: 4/3;
  display: block;
  background: var(--color-navy);
}

.case-gallery__item:nth-child(4n+1) {
  grid-column: span 2;
}

.case-gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.case-gallery__zoom {
  position: absolute;
  inset: 0;
  background: rgba(6, 11, 24, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ivory);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.case-gallery__item:hover img { transform: scale(1.04); }
.case-gallery__item:hover .case-gallery__zoom { opacity: 1; }

/* Navigation prev/next */
.case-nav {
  padding: var(--space-md) 0;
}

.case-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.case-nav__link {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  max-width: 300px;
  transition: opacity var(--transition-fast);
}

.case-nav__link:hover { opacity: 0.8; }

.case-nav__link--prev { align-items: flex-start; }
.case-nav__link--next { align-items: flex-end; text-align: right; }

.case-nav__dir {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-slate);
}

.case-nav__title {
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-ivory);
}

.case-nav__all {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(106, 123, 155, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-slate);
  flex-shrink: 0;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.case-nav__all:hover {
  border-color: var(--color-volt);
  color: var(--color-volt);
}

/* Responsive single */
@media (max-width: 900px) {
  .case-hero__layout { grid-template-columns: 1fr; }
  .case-hero__media  { order: -1; }
  .case-split        { grid-template-columns: 1fr; gap: var(--space-md); }
  .case-gallery      { grid-template-columns: repeat(2, 1fr); }
  .case-gallery__item:nth-child(4n+1) { grid-column: span 1; }
}

@media (max-width: 600px) {
  .case-gallery      { grid-template-columns: 1fr; }
  .case-nav__link    { max-width: 200px; }
  .case-nav__title   { font-size: 0.85rem; }
}