/* ==========================================================================
   SYNAPSE • STACKING CARDS DECK (BARAJA DE APLICACIONES EN SCROLL)
   Award-Winning Card Deck Architecture: Apple / Linear Style Stacking
   ========================================================================== */

.stacking-deck-section {
  position: relative;
  z-index: 100;
  width: 100%;
  padding: 80px 24px 40px;
  background: radial-gradient(circle at 50% 15%, #0F1722 0%, #070B10 80%);
  overflow: visible;
  box-sizing: border-box;
}

.stacking-deck-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 60px;
}

.stacking-deck-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono, monospace);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #00F0FF;
  background: rgba(0, 240, 255, 0.10);
  border: 1px solid rgba(0, 240, 255, 0.25);
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.stacking-deck-title {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin: 0 0 16px;
}

.stacking-deck-title span {
  background: linear-gradient(135deg, #FFFFFF 30%, rgba(255, 255, 255, 0.55) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stacking-deck-desc {
  font-family: 'Outfit', sans-serif;
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.70);
  line-height: 1.6;
  margin: 0 auto;
}

/* Stacking Container */
.stacking-cards-container {
  position: relative;
  max-width: 1160px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 30vh; /* Paced scroll runway between cards */
  padding-bottom: 15vh; /* Gentle hold runway before transitioning to metrics */
}

/* Individual Stacking Card (Baraja) */
.stacking-card {
  position: sticky;
  top: calc(78px + var(--card-index) * 28px);
  z-index: calc(10 + var(--card-index));
  width: 100%;
  border-radius: 28px;
  background: linear-gradient(145deg, #131720 0%, #0A0D12 100%);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 
    0 -18px 45px -8px rgba(0, 0, 0, 0.92),
    0 25px 60px -12px rgba(0, 0, 0, 0.95),
    inset 0 1px 2px rgba(255, 255, 255, 0.25);
  padding: 28px 32px 32px;
  box-sizing: border-box;
  transform-origin: top center;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), filter 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  will-change: transform, filter;
}

/* Card Header (Matches Reference Layout) */
.stacking-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.stacking-card-identity {
  display: flex;
  align-items: center;
  gap: 18px;
}

.stacking-card-num {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(3.2rem, 5vw, 4.2rem);
  font-weight: 900;
  line-height: 0.85;
  letter-spacing: -0.05em;
  color: #FFFFFF;
  user-select: none;
  text-shadow: 0 4px 18px rgba(0, 0, 0, 0.6);
}

.stacking-card-titles {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.stacking-card-category {
  font-family: var(--font-mono, monospace);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.65);
}

.stacking-card-name {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.02em;
  margin: 0;
}

/* Live Project Action Pill (Matches Reference) */
.stacking-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.05);
  color: #FFFFFF;
  font-family: 'Outfit', sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
}

.stacking-card-cta svg {
  transition: transform 0.25s ease;
}

.stacking-card-cta:hover {
  background: #FFFFFF;
  color: #000000;
  border-color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255, 255, 255, 0.25);
}

.stacking-card-cta:hover svg {
  transform: translate(2px, -2px);
}

/* Card Body: Bento Grid (Matches 2 Thumbnails Left + 1 Wide Right) */
.stacking-card-bento {
  display: grid;
  grid-template-columns: 38% 1fr;
  gap: 18px;
  align-items: stretch;
}

@media (max-width: 768px) {
  .stacking-card-bento {
    grid-template-columns: 1fr;
  }
}

/* Left Column: 2 Stacked Rounded Boxes */
.stacking-bento-left {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.stacking-bento-box {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  background: #06090D;
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.stacking-bento-box:hover {
  border-color: rgba(255, 255, 255, 0.35);
}

.stacking-box-thumb {
  height: 185px;
}

@media (max-width: 768px) {
  .stacking-box-thumb {
    height: 150px;
  }
}

.stacking-bento-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.stacking-bento-box:hover img {
  transform: scale(1.04);
}

/* Right Column: 1 Large Wide Feature Preview */
.stacking-bento-right {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  background: #06090D;
  border: 1px solid rgba(255, 255, 255, 0.14);
  min-height: 386px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.stacking-bento-right:hover {
  border-color: rgba(255, 255, 255, 0.40);
}

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

.stacking-bento-right:hover img {
  transform: scale(1.03);
}

/* Frosted Glass Floating Badge inside boxes */
.stacking-box-overlay {
  position: absolute;
  bottom: 14px;
  left: 14px;
  right: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  border-radius: 14px;
  background: rgba(7, 11, 16, 0.72);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.18);
  pointer-events: none;
}

.stacking-box-tag {
  font-family: 'Outfit', sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 0.01em;
}

.stacking-box-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono, monospace);
  font-size: 0.72rem;
  font-weight: 800;
  color: #34D399;
  background: rgba(16, 185, 129, 0.18);
  padding: 2px 8px;
  border-radius: 8px;
}

.stacking-box-chip .chip-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #34D399;
  box-shadow: 0 0 6px #34D399;
}

/* Individual App Theme Accents */
.stacking-card[data-card-index="0"] { border-top: 1.5px solid rgba(248, 113, 113, 0.55); }
.stacking-card[data-card-index="0"] .stacking-card-category { color: #F87171; }
.stacking-card[data-card-index="0"] .stacking-card-num { color: #FFFFFF; }
.stacking-card[data-card-index="0"]:hover { border-color: rgba(239, 68, 68, 0.50); }

.stacking-card[data-card-index="1"] { border-top: 1.5px solid rgba(96, 165, 250, 0.55); }
.stacking-card[data-card-index="1"] .stacking-card-category { color: #60A5FA; }
.stacking-card[data-card-index="1"]:hover { border-color: rgba(59, 130, 246, 0.50); }

.stacking-card[data-card-index="2"] { border-top: 1.5px solid rgba(52, 211, 153, 0.55); }
.stacking-card[data-card-index="2"] .stacking-card-category { color: #34D399; }
.stacking-card[data-card-index="2"]:hover { border-color: rgba(16, 185, 129, 0.50); }

.stacking-card[data-card-index="3"] { border-top: 1.5px solid rgba(167, 139, 250, 0.55); }
.stacking-card[data-card-index="3"] .stacking-card-category { color: #A78BFA; }
.stacking-card[data-card-index="3"]:hover { border-color: rgba(168, 85, 247, 0.50); }

.stacking-card[data-card-index="4"] { border-top: 1.5px solid rgba(251, 191, 36, 0.55); }
.stacking-card[data-card-index="4"] .stacking-card-category { color: #FBBF24; }
.stacking-card[data-card-index="4"]:hover { border-color: rgba(245, 158, 11, 0.50); }

/* Responsive adjustments */
@media (max-width: 640px) {
  .stacking-deck-section {
    padding: 60px 16px 100px;
  }
  .stacking-card {
    padding: 20px 20px 24px;
    border-radius: 22px;
  }
  .stacking-card-identity {
    gap: 12px;
  }
  .stacking-card-num {
    font-size: 2.8rem;
  }
  .stacking-bento-right {
    min-height: 240px;
  }
}