/* ==========================================================================
   MUJEEB UL HAQ QADRI (v2) - Stacking Cards (Native CSS Responsive Architecture)
   ========================================================================== */

.stacking-cards-container {
  position: relative;
  width: 100%;
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
}

.stacking-card {
  position: sticky;
  top: calc(88px + var(--card-index, 0) * 18px);
  margin-bottom: 4rem;
  background: linear-gradient(160deg, rgba(18, 12, 17, 0.97) 0%, rgba(8, 5, 8, 0.99) 100%);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-top: 1px solid rgba(237, 94, 77, 0.45);
  border-radius: var(--radius-xl);
  box-shadow: 
    0 32px 75px -15px rgba(0, 0, 0, 0.92),
    0 10px 25px -5px rgba(0, 0, 0, 0.7),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
  padding: clamp(1.75rem, 4vw, 3.5rem);
  overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  will-change: transform;
}

/* Card Glow Accent Line */
.stacking-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 5%;
  width: 90%;
  height: 2px;
  background: var(--card-gradient, linear-gradient(90deg, var(--accent-primary), var(--accent-cyan)));
  opacity: 0.85;
}

.stacking-card:hover {
  border-color: rgba(237, 94, 77, 0.5);
  border-top-color: var(--accent-cyan);
  box-shadow: 
    0 38px 90px -10px rgba(0, 0, 0, 0.96),
    0 0 35px rgba(6, 182, 212, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.card-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 3rem;
  align-items: center;
}

.card-header-meta {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.card-number {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.12);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

.card-category {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.card-title {
  font-size: clamp(1.45rem, 2.8vw, 2.15rem);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.card-description {
  font-size: clamp(0.95rem, 1.8vw, 1.05rem);
  color: #cbd5e1;
  margin-bottom: 1.6rem;
  line-height: 1.65;
}

.card-features {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 1.8rem;
}

.card-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.92rem;
  color: #94a3b8;
  line-height: 1.55;
}

.card-feature-item svg {
  flex-shrink: 0;
  margin-top: 0.2rem;
  color: var(--accent-cyan);
}

.card-feature-item strong {
  color: #fff;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.card-tag {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: #cbd5e1;
}

/* Card Visual Container (Right Column) */
.card-visual {
  background: linear-gradient(145deg, rgba(20, 13, 17, 0.85) 0%, rgba(10, 7, 9, 0.96) 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-top: 1px solid rgba(237, 94, 77, 0.25);
  border-radius: var(--radius-lg);
  padding: clamp(1.25rem, 3vw, 2rem);
  position: relative;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.08), 0 12px 32px rgba(0, 0, 0, 0.45);
}

.visual-metric-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  margin-bottom: 1.25rem;
}

.visual-metric-val {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  color: #fff;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.visual-metric-desc {
  font-size: 0.8rem;
  color: var(--accent-cyan);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.visual-badge-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.visual-badge-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  font-size: 0.82rem;
  gap: 0.5rem;
}

.visual-badge-row span:first-child {
  color: var(--text-secondary);
}

.visual-badge-row span:last-child {
  font-weight: 700;
  color: #fff;
  text-align: right;
}

/* Tablet & Mobile Media Queries */
@media (max-width: 992px) {
  .card-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* On Mobile Viewports: Enable compact fluid mobile sticky card stacking */
@media (max-width: 768px) {
  .stacking-cards-container {
    margin-top: 1.25rem;
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0;
  }
  .stacking-card {
    position: sticky !important;
    top: calc(68px + var(--card-index, 0) * 12px) !important;
    margin-bottom: 2rem !important;
    padding: 1.1rem 1rem !important;
    border-radius: var(--radius-lg);
    box-shadow: 
      0 20px 50px -10px rgba(0, 0, 0, 0.95),
      0 0 20px rgba(237, 94, 77, 0.15),
      inset 0 1px 0 rgba(255, 255, 255, 0.12);
    max-height: calc(100vh - 85px);
    overflow-y: auto;
  }
  .stacking-card:last-child {
    margin-bottom: 1rem !important;
  }
  .card-grid {
    gap: 0.85rem;
  }
  .card-header-meta {
    margin-bottom: 0.45rem;
  }
  .card-number {
    font-size: 0.72rem;
    padding: 0.18rem 0.5rem;
  }
  .card-category {
    font-size: 0.72rem;
  }
  .card-title {
    font-size: clamp(1.15rem, 3.8vw, 1.28rem);
    margin-bottom: 0.35rem;
    line-height: 1.25;
  }
  .card-description {
    font-size: 0.82rem;
    line-height: 1.45;
    margin-bottom: 0.65rem;
  }
  .card-features {
    gap: 0.35rem;
    margin-bottom: 0.75rem;
  }
  .card-feature-item {
    font-size: 0.78rem;
    line-height: 1.35;
    gap: 0.45rem;
  }
  .card-feature-item svg {
    width: 14px;
    height: 14px;
    margin-top: 0.15rem;
  }
  /* On mobile viewports, keep 2 most impactful highlights to maintain compact card height */
  .card-features .card-feature-item:nth-child(n+3) {
    display: none;
  }
  .card-tags {
    gap: 0.3rem;
    margin-bottom: 0.65rem;
  }
  .card-tag {
    font-size: 0.68rem;
    padding: 0.2rem 0.5rem;
  }
  .card-grid .btn-sm {
    margin-top: 0.35rem !important;
    padding: 0.45rem 0.85rem !important;
    font-size: 0.78rem !important;
    min-height: 36px;
  }
  .card-visual {
    padding: 0.65rem;
    border-radius: var(--radius-md);
  }
  /* On mobile, hide bulky 140px SVG circle to eliminate screen blowout */
  .score-gauge-box {
    display: none !important;
  }
  .live-status-pill {
    padding: 0.25rem 0.6rem;
    font-size: 0.72rem;
    margin-bottom: 0.45rem;
  }
  .visual-metric-box {
    padding: 0.45rem 0.75rem;
    margin-bottom: 0.45rem;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: baseline;
  }
  .visual-metric-val {
    font-size: 1.35rem;
    margin-bottom: 0;
  }
  .visual-metric-desc {
    font-size: 0.72rem;
    text-align: right;
  }
  .visual-badge-list {
    gap: 0.3rem;
  }
  .visual-badge-row {
    padding: 0.35rem 0.55rem;
    font-size: 0.72rem;
  }
}