/* ==========================================================================
   CLOUDS DANCE STUDIO — 2026 Spatial Experience Stylesheet
   High-End Editorial Broadsheet, Interactive Disciplines Showcase & Depth
   ========================================================================== */

/* Ambient Spatial Canvas Background */
.spatial-stage-canvas-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  background: radial-gradient(circle at var(--spot-x, 60%) var(--spot-y, 40%), #161412 0%, #0A0908 100%);
  transition: background 0.4s ease-out;
}

/* --------------------------------------------------------------------------
   1. HERO SPATIAL BROADSHEET (100DVH 2026 EDITORIAL STAGE)
   -------------------------------------------------------------------------- */
.hero-spatial-stage {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  position: relative;
  perspective: 1200px;
  transform-style: preserve-3d;
  background-color: transparent;
  color: var(--text-light-primary);
  padding-top: 130px;
  padding-bottom: 80px;
  overflow: hidden;
  z-index: 1;
}

.hero-spatial-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: center;
  transform-style: preserve-3d;
}

@media (min-width: 992px) {
  .hero-spatial-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: var(--space-7);
  }
}

/* Spatial Depth Layers */
.spatial-layer {
  transform-style: preserve-3d;
  will-change: transform;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

/* Live Studio Status Pill */
.hero-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-light-secondary);
  margin-bottom: var(--space-4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.hero-status-dot {
  width: 7px;
  height: 7px;
  background-color: #22C55E;
  border-radius: 50%;
  box-shadow: 0 0 8px #22C55E;
  animation: pulse-dot 2.5s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* Hero Architectural Headline */
.hero-spatial-headline {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6.2vw, 4.8rem);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin-bottom: var(--space-4);
  color: var(--text-light-primary);
  text-transform: uppercase;
}

.hero-spatial-headline span {
  display: block;
}

.hero-spatial-headline span.headline-serif,
.hero-spatial-headline span.headline-accent {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--accent);
  display: inline-block;
  text-transform: capitalize;
}

.hero-spatial-sub {
  font-size: clamp(1.0rem, 1.4vw, 1.12rem);
  color: var(--text-light-secondary);
  max-width: 520px;
  margin-bottom: var(--space-5);
  line-height: 1.68;
  font-weight: 400;
}

.hero-spatial-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

/* Quiet Hero Metadata */
.hero-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-dark);
  color: var(--text-light-muted);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-meta-item strong {
  color: var(--text-light-primary);
  font-weight: 700;
}

/* 3D Editorial Photo Stage */
.hero-3d-media-stage {
  position: relative;
  height: clamp(380px, 52vh, 560px);
  max-width: 480px;
  margin: 0 auto;
  width: 100%;
  perspective: 1000px;
  transform-style: preserve-3d;
  will-change: transform;
}

.hero-3d-photo-main {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 35px 90px rgba(0, 0, 0, 0.75);
  transform-style: preserve-3d;
  background-color: #141312;
  will-change: transform;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.hero-3d-photo-main::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at var(--glare-x, 50%) var(--glare-y, 50%), rgba(255, 255, 255, 0.16) 0%, rgba(255, 255, 255, 0) 65%);
  mix-blend-mode: overlay;
}

.hero-3d-photo-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  filter: brightness(0.95) contrast(1.06);
  display: block;
}

/* Editorial Print Tag Stamp */
.hero-photo-tag {
  position: absolute;
  bottom: 18px;
  left: 18px;
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #FAF8F5;
  background: rgba(10, 9, 8, 0.88);
  padding: 7px 12px;
  border-radius: 2px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  z-index: 2;
  pointer-events: none;
}

/* Layered Secondary Depth Photo Print */
.hero-3d-photo-accent {
  position: absolute;
  top: -24px;
  right: -28px;
  width: 180px;
  height: 220px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.8);
  display: none;
  z-index: -1;
  background-color: #121110;
  will-change: transform;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.hero-3d-photo-accent img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.82) contrast(1.1);
  display: block;
}

@media (min-width: 768px) {
  .hero-3d-photo-accent {
    display: block;
  }
}

/* Magnetic Button Physics */
.btn-magnetic {
  transition: transform 0.15s var(--ease-out), background-color var(--transition-fast), border-color var(--transition-fast);
  will-change: transform;
}

/* --------------------------------------------------------------------------
   2. INTERACTIVE PROGRAMS & DISCIPLINE CURTAIN SHOWCASE
   -------------------------------------------------------------------------- */
.spatial-classes-section {
  background-color: var(--bg-dark);
  color: var(--text-light-primary);
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border-dark);
}

.classes-header-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  align-items: flex-start;
}

@media (min-width: 768px) {
  .classes-header-row {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
  }
}

.spatial-classes-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: flex-start;
}

@media (min-width: 992px) {
  .spatial-classes-layout {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-7);
  }
}

/* Left List of Disciplines */
.spatial-classes-nav-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.spatial-class-nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: 18px 22px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-xs);
  color: var(--text-light-secondary);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-fast);
  width: 100%;
}

.spatial-class-nav-item:hover {
  color: var(--text-light-primary);
  border-color: var(--border-dark-strong);
  background-color: rgba(255, 255, 255, 0.05);
  transform: translateX(4px);
}

.spatial-class-nav-item.is-active {
  color: #FAF8F5;
  border-color: var(--accent);
  background-color: rgba(229, 169, 16, 0.09);
  transform: translateX(6px);
  font-weight: 700;
}

.nav-item-index {
  font-family: var(--font-sans);
  font-size: 0.76rem;
  font-weight: 800;
  color: var(--accent);
  width: 24px;
  letter-spacing: 0.04em;
}

.nav-item-name {
  flex-grow: 1;
}

.nav-item-arrow {
  font-size: 1.0rem;
  opacity: 0;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  transform: translateX(-6px);
}

.spatial-class-nav-item.is-active .nav-item-arrow,
.spatial-class-nav-item:hover .nav-item-arrow {
  opacity: 1;
  transform: translateX(0);
  color: var(--accent);
}

/* Right Interactive Preview Box */
.spatial-stage-preview-box {
  background-color: var(--surface-dark);
  border: 1px solid var(--border-dark-strong);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6);
  transition: transform 0.3s var(--ease-out), opacity 0.3s var(--ease-out);
  position: sticky;
  top: 96px;
}

.spatial-stage-media {
  position: relative;
  height: 280px;
  overflow: hidden;
  background-color: #0A0908;
}

.spatial-stage-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.spatial-stage-preview-box:hover .spatial-stage-media img {
  transform: scale(1.03);
}

.class-index {
  position: absolute;
  top: 16px;
  left: 16px;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 800;
  color: #FAF8F5;
  background: rgba(10, 9, 8, 0.85);
  padding: 5px 10px;
  border-radius: var(--radius-xs);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.class-level-tag {
  position: absolute;
  top: 16px;
  right: 16px;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #0A0908;
  background-color: var(--accent);
  padding: 5px 10px;
  border-radius: var(--radius-xs);
}

.spatial-stage-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
}

.stage-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: var(--space-2);
  color: var(--text-light-primary);
  letter-spacing: -0.02em;
}

.stage-tagline {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: var(--space-3);
  line-height: 1.5;
}

.stage-desc {
  font-size: 0.9rem;
  color: var(--text-light-secondary);
  line-height: 1.65;
  margin-bottom: var(--space-4);
}

.stage-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: 0.8rem;
  color: var(--text-light-muted);
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-4);
  border-bottom: 1px solid var(--border-dark);
}

.stage-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   3. SPATIAL EDITORIAL GALLERY
   -------------------------------------------------------------------------- */
.spatial-gallery-section {
  background-color: var(--bg-obsidian);
  color: var(--text-light-primary);
  position: relative;
  z-index: 1;
}

.spatial-gallery-perspective-stage {
  perspective: 1000px;
  transform-style: preserve-3d;
}

.spatial-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: var(--space-4);
  transform-style: preserve-3d;
}

.spatial-gallery-card {
  position: relative;
  height: 320px;
  border-radius: var(--radius-xs);
  overflow: hidden;
  cursor: pointer;
  background-color: #0A0908;
  border: 1px solid var(--border-dark);
  transition: transform 0.3s var(--ease-out), border-color 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.spatial-gallery-card.tall {
  height: 440px;
}

.spatial-gallery-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.spatial-gallery-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.75);
  z-index: 10;
}

.spatial-gallery-card:hover img {
  transform: scale(1.05);
}

.spatial-gallery-card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: var(--space-4);
  background: linear-gradient(180deg, transparent 0%, rgba(10, 9, 8, 0.95) 100%);
  color: #ffffff;
  font-size: 0.88rem;
  font-weight: 600;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.spatial-gallery-card:hover .spatial-gallery-card-overlay {
  opacity: 1;
}

/* --------------------------------------------------------------------------
   4. MOBILE-FIRST RESPONSIVE OPTIMIZATIONS
   -------------------------------------------------------------------------- */
@media (max-width: 991px) {
  .hero-spatial-stage {
    min-height: auto;
    padding-top: 86px;
    padding-bottom: 40px;
  }
  
  .hero-spatial-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
  
  .hero-spatial-headline {
    font-size: clamp(2.6rem, 11.5vw, 3.8rem);
    line-height: 0.98;
    margin-bottom: 16px;
  }
  
  .hero-spatial-sub {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 20px;
  }

  .hero-spatial-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    width: 100%;
    margin-bottom: 20px;
  }

  .hero-spatial-actions .btn {
    width: 100%;
    padding: 14px 12px;
    font-size: 0.82rem;
    text-align: center;
  }

  .hero-meta-row {
    font-size: 0.78rem;
    gap: 8px;
    padding-top: 14px;
  }
  
  .hero-3d-media-stage {
    height: clamp(300px, 46vh, 420px);
    max-width: 330px;
    margin: 12px auto 0;
  }
  
  .hero-3d-photo-accent {
    display: block;
    top: -12px;
    right: -14px;
    width: 110px;
    height: 140px;
  }

  .spatial-classes-layout {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .spatial-classes-nav-list {
    flex-direction: row;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 8px;
    gap: 8px;
  }

  .spatial-classes-nav-list::-webkit-scrollbar {
    display: none;
  }

  .spatial-class-nav-item {
    flex: 0 0 auto;
    scroll-snap-align: start;
    padding: 10px 18px;
    font-size: 0.88rem;
    white-space: nowrap;
    border-radius: 30px;
  }

  .spatial-class-nav-item.is-active {
    transform: none;
    background-color: var(--accent);
    color: #0A0908;
    border-color: var(--accent);
  }

  .spatial-class-nav-item.is-active .nav-item-index {
    color: #0A0908;
  }

  .spatial-class-nav-item .nav-item-arrow {
    display: none;
  }

  .spatial-stage-preview-box {
    position: static;
  }

  .spatial-stage-media {
    height: 220px;
  }

  .spatial-stage-content {
    padding: 20px 16px;
  }

  .stage-title {
    font-size: 1.25rem;
  }

  .stage-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    width: 100%;
  }

  .stage-actions .btn {
    width: 100%;
  }

  .spatial-gallery-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .spatial-gallery-card.tall {
    height: 280px;
  }

  .spatial-gallery-card {
    height: 180px;
  }

  .spatial-gallery-card-overlay {
    opacity: 1;
    font-size: 0.78rem;
    padding: 10px;
  }
}

@media (max-width: 480px) {
  .hero-spatial-actions {
    grid-template-columns: 1fr;
  }

  .spatial-gallery-grid {
    grid-template-columns: 1fr;
  }

  .spatial-gallery-card.tall {
    height: 240px;
  }
}