/* ==========================================================================
   RSON DESIGN STUDIO — EXHIBITIONS PORTFOLIO STYLES
   Editorial light aesthetic, architectural masonry rhythm, refined typography
   ========================================================================== */

/* --------------------------------------------------------------------------
   01. HERO SECTION
   -------------------------------------------------------------------------- */
.exhibitions-hero {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-3xl);
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-hairline);
}

.exhibitions-hero-header {
  max-width: 1040px;
  margin-bottom: var(--space-2xl);
}

.exhibitions-meta-kicker {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-beige);
  margin-bottom: var(--space-xs);
}

.exhibitions-meta-divider {
  color: var(--border-light);
}

.exhibitions-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3.2rem, 7vw, 6rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-top: var(--space-xs);
  margin-bottom: var(--space-md);
}

.exhibitions-hero-title em {
  font-style: italic;
  color: var(--brand-orange);
}

.exhibitions-hero-intro {
  font-size: clamp(1.05rem, 1.35vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 820px;
  font-weight: 400;
}

/* Large Hero Exhibition Photographic Banner */
.exhibitions-hero-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 21 / 9;
  border-radius: var(--radius-subtle);
  overflow: hidden;
  background-color: #0E0F12;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.07);
}

.exhibitions-hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.exhibitions-hero-visual:hover img {
  transform: scale(1.02);
}

.exhibitions-hero-badge {
  position: absolute;
  bottom: var(--space-lg);
  left: var(--space-lg);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 10px 18px;
  border-radius: var(--radius-subtle);
  display: flex;
  flex-direction: column;
  gap: 2px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.exhibitions-badge-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-beige);
  font-weight: 600;
}

.exhibitions-badge-val {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   02. FEATURED PROJECT COMPOSITION
   -------------------------------------------------------------------------- */
.featured-project-section {
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-hairline);
}

.featured-project-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
}

.featured-section-kicker {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  border-bottom: 1px solid var(--border-hairline);
  padding-bottom: var(--space-md);
}

.featured-title-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.featured-subtitle {
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-beige);
  font-weight: 600;
}

.featured-main-heading {
  font-family: var(--font-serif);
  font-size: var(--text-display);
  font-weight: 400;
  color: var(--text-primary);
  line-height: 1.15;
}

.featured-main-heading em {
  font-style: italic;
  color: var(--brand-orange);
}

.featured-index-num {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* The Featured Composition Block */
.featured-composition {
  display: grid;
  grid-template-columns: 1.45fr 0.85fr;
  gap: var(--space-2xl);
  align-items: stretch;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-subtle);
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.04);
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.featured-composition:hover {
  transform: translateY(-4px);
  border-color: var(--accent-beige);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.08);
}

.featured-visual-pane {
  position: relative;
  overflow: hidden;
  min-height: 480px;
  background-color: #0F1012;
}

.featured-visual-pane img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.featured-composition:hover .featured-visual-pane img {
  transform: scale(1.035);
}

.featured-floating-tag {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  background: rgba(17, 18, 20, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #FFFFFF;
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
  border-radius: var(--radius-subtle);
}

.featured-info-pane {
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.featured-meta-top {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.featured-category-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-beige);
  font-weight: 600;
}

.featured-project-name {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 2.8vw, 2.6rem);
  font-weight: 400;
  line-height: 1.18;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.featured-description {
  font-size: var(--text-body);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Specs Table */
.featured-specs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--border-hairline);
  border-bottom: 1px solid var(--border-hairline);
  padding: var(--space-lg) 0;
  margin: var(--space-lg) 0;
}

.spec-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.spec-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.spec-value {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
}

.featured-action-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.featured-action-arrow {
  transition: transform var(--transition-fast);
}

.featured-composition:hover .featured-action-arrow {
  transform: translateX(6px);
}

.featured-composition:hover .featured-action-link {
  color: var(--accent-beige);
}

/* --------------------------------------------------------------------------
   03. CATEGORY FILTER BAR
   -------------------------------------------------------------------------- */
.filter-bar-section {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-xl);
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-hairline);
  position: static;
  transition: box-shadow var(--transition-fast);
}

.filter-bar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.filter-pills-list {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.filter-pill {
  appearance: none;
  border: 1px solid var(--border-hairline);
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: var(--radius-subtle);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

.filter-pill:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-light);
}

.filter-pill.active {
  background-color: var(--text-primary);
  color: var(--text-inverse);
  border-color: var(--text-primary);
}

.filter-pill-count {
  font-size: 0.7rem;
  opacity: 0.65;
}

.filter-bar-summary {
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   04. PROJECT COLLECTION (EDITORIAL / MASONRY-INSPIRED ASYMMETRIC GRID)
   No repetitive generic 3-column cards.
   -------------------------------------------------------------------------- */
.exhibitions-gallery-section {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-5xl);
  background-color: var(--bg-primary);
}

.editorial-gallery-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-2xl) var(--space-xl);
  align-items: start;
}

/* Card Base Structure */
.exhibit-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  background-color: var(--bg-primary);
  position: relative;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.exhibit-image-wrap {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: var(--radius-subtle);
  background-color: #0E0F12;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
}

.exhibit-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.exhibit-card:hover .exhibit-image-wrap img {
  transform: scale(1.035);
}

.exhibit-hover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(17, 18, 20, 0.45) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.exhibit-card:hover .exhibit-hover-overlay {
  opacity: 1;
}

.exhibit-card-badge {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: 4px 10px;
  border-radius: var(--radius-subtle);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

/* Card Metadata / Typography */
.exhibit-meta-wrap {
  padding-top: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.exhibit-meta-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-sm);
}

.exhibit-category-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-beige);
  font-weight: 600;
}

.exhibit-year-location {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.exhibit-title {
  font-family: var(--font-serif);
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.25;
  margin-top: 2px;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  transition: color var(--transition-fast);
}

.exhibit-arrow-indicator {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--text-primary);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.exhibit-card:hover .exhibit-title {
  color: var(--text-primary);
}

.exhibit-card:hover .exhibit-arrow-indicator {
  opacity: 1;
  transform: translateX(2px);
}

.exhibit-client-sub {
  font-size: var(--text-body-sm);
  color: var(--text-secondary);
  line-height: 1.5;
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   EDITORIAL ASYMMETRIC GRID SPANS & ASPECT RATIOS
   Creating intentional visual hierarchy and varied compositions
   -------------------------------------------------------------------------- */

/* Item 1: Wide Landscape Feature (8 columns) */
.span-col-8 {
  grid-column: span 8;
}

.span-col-8 .exhibit-image-wrap {
  aspect-ratio: 16 / 10;
}

.span-col-8 .exhibit-title {
  font-size: clamp(1.4rem, 2vw, 1.85rem);
}

/* Item 2: Tall Architectural Vertical (4 columns) */
.span-col-4 {
  grid-column: span 4;
}

.span-col-4 .exhibit-image-wrap {
  aspect-ratio: 3 / 4;
}

.span-col-4 .exhibit-title {
  font-size: clamp(1.2rem, 1.5vw, 1.45rem);
}

/* Item 3: Medium Asymmetric Frame (5 columns) */
.span-col-5 {
  grid-column: span 5;
}

.span-col-5 .exhibit-image-wrap {
  aspect-ratio: 4 / 3;
}

.span-col-5 .exhibit-title {
  font-size: clamp(1.25rem, 1.6vw, 1.5rem);
}

/* Item 4: Generous Wide Feature (7 columns) */
.span-col-7 {
  grid-column: span 7;
}

.span-col-7 .exhibit-image-wrap {
  aspect-ratio: 16 / 9;
}

.span-col-7 .exhibit-title {
  font-size: clamp(1.35rem, 1.8vw, 1.7rem);
}

/* Item 5 & 12: Full-Bleed Panorama Statement (12 columns) */
.span-col-12 {
  grid-column: span 12;
  margin: var(--space-xl) 0;
  border-top: 1px solid var(--border-hairline);
  border-bottom: 1px solid var(--border-hairline);
  padding: var(--space-xl) 0;
}

.span-col-12 .exhibit-image-wrap {
  aspect-ratio: 21 / 9;
}

.span-col-12 .exhibit-title {
  font-size: clamp(1.6rem, 2.5vw, 2.4rem);
}

.span-col-12 .exhibit-meta-wrap {
  max-width: 900px;
}

/* Item 6 & 7: Staggered Balanced Pair (6 columns each) */
.span-col-6 {
  grid-column: span 6;
}

.span-col-6 .exhibit-image-wrap {
  aspect-ratio: 16 / 10;
}

.span-col-6 .exhibit-title {
  font-size: clamp(1.3rem, 1.7vw, 1.6rem);
}

/* Offset Whitespace utility for human editorial rhythm */
.offset-top-md {
  margin-top: var(--space-2xl);
}

/* --------------------------------------------------------------------------
   05. CTA SECTION ("HAVE AN EXHIBITION IN MIND?")
   -------------------------------------------------------------------------- */
.exhibitions-cta {
  padding-top: var(--space-5xl);
  padding-bottom: var(--space-5xl);
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-hairline);
}

.exhibitions-cta-container {
  max-width: 960px;
  margin: 0 auto;
  text-align: center;
}

.exhibitions-cta-kicker {
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-beige);
  font-weight: 600;
  display: block;
  margin-bottom: var(--space-sm);
}

.exhibitions-cta-title {
  font-family: var(--font-serif);
  font-size: clamp(2.6rem, 5.2vw, 4.4rem);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.exhibitions-cta-title em {
  font-style: italic;
  color: var(--brand-orange);
}

.exhibitions-cta-desc {
  font-size: clamp(1rem, 1.25vw, 1.15rem);
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 720px;
  margin: 0 auto var(--space-2xl) auto;
}

.exhibitions-cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

.exhibitions-cta-specs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-hairline);
  flex-wrap: wrap;
}

.cta-spec-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.cta-spec-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.cta-spec-value {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   06. RESPONSIVE ARCHITECTURE
   Tailored compositions for tablet and mobile
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .featured-composition {
    grid-template-columns: 1fr;
  }

  .featured-visual-pane {
    min-height: 380px;
    aspect-ratio: 16 / 9;
  }

  .editorial-gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
  }

  /* Reset 12-col spans to 2-col or full on tablet */
  .span-col-8,
  .span-col-7,
  .span-col-6,
  .span-col-5,
  .span-col-4 {
    grid-column: span 1;
  }

  .span-col-12 {
    grid-column: span 2;
  }

  .offset-top-md {
    margin-top: 0;
  }
}

@media (max-width: 768px) {
  .exhibitions-hero {
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
  }

  .exhibitions-hero-title {
    font-size: clamp(2rem, 7.8vw, 2.65rem);
    line-height: 1.12;
    margin-bottom: var(--space-xs);
  }

  /* Hide long intro on mobile so the architectural visual is front and center */
  .exhibitions-hero-intro {
    display: none !important;
  }

  .exhibitions-hero-visual {
    aspect-ratio: 16 / 10;
    border-radius: var(--radius-subtle);
  }

  .exhibitions-hero-badge {
    bottom: var(--space-xs);
    left: var(--space-xs);
    right: var(--space-xs);
    padding: 8px 12px;
  }

  .filter-bar-section {
    position: static;
    padding-top: var(--space-md);
    padding-bottom: var(--space-sm);
  }

  .filter-pills-list {
    overflow-x: auto;
    width: 100%;
    padding-bottom: var(--space-xs);
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .filter-pills-list::-webkit-scrollbar {
    display: none;
  }

  .filter-pill {
    white-space: nowrap;
    flex-shrink: 0;
  }

  .filter-bar-summary {
    display: none;
  }

  .featured-project-section {
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
  }

  .featured-info-pane {
    padding: var(--space-md);
  }

  /* Hide long description on mobile */
  .featured-description {
    display: none !important;
  }

  .featured-specs-grid {
    display: none !important;
  }

  .editorial-gallery-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .span-col-8,
  .span-col-7,
  .span-col-6,
  .span-col-5,
  .span-col-4,
  .span-col-12 {
    grid-column: span 1;
  }

  .span-col-12 {
    margin: var(--space-xs) 0;
    padding: var(--space-xs) 0;
  }

  .span-col-4 .exhibit-image-wrap {
    aspect-ratio: 16 / 10;
  }

  .exhibit-meta-wrap {
    padding-top: var(--space-xs);
  }

  .exhibit-title {
    font-size: 1.15rem;
  }

  /* Hide sub-client text on mobile */
  .exhibit-client-sub {
    display: none !important;
  }

  .exhibitions-cta {
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-2xl);
  }

  .exhibitions-cta-desc {
    display: none !important;
  }

  .exhibitions-cta-specs {
    flex-direction: column;
    gap: var(--space-xs);
  }

  .exhibitions-cta-actions .btn {
    width: 100%;
    justify-content: center;
  }
}