/*
============================================================
* NexRise - Portfolio Page Specific Stylesheet
* Premium Grid & Project Showcase Card Styling
============================================================
*/

/* --- Category Filters --- */
.portfolio-filter-section {
  padding: 3rem 0;
  position: relative;
  z-index: 5;
}

.filter-pills-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.filter-pill-btn {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 10px 24px;
  border-radius: 30px;
  color: var(--fg-muted);
  font-size: var(--fs-xs);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  outline: none;
}

[data-theme="dark"] .filter-pill-btn {
  background: rgba(255, 255, 255, 0.02);
  border-color: rgba(255, 255, 255, 0.06);
}

.filter-pill-btn:hover {
  color: var(--fg);
  border-color: rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.04);
}

.filter-pill-btn.is-active {
  background: var(--color-accent-gradient);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 20px rgba(6, 182, 212, 0.25);
}

/* --- Portfolio Showcase Grid --- */
.portfolio-grid-section {
  padding: 2rem 0 6rem 0;
  position: relative;
  z-index: 5;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.2rem;
}

/* --- Project Showcase Card --- */
.project-showcase-card {
  border-radius: 24px;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: all 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card-image-wrap {
  position: relative;
  width: 100%;
  height: 380px;
  overflow: hidden;
}

.project-card-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.02);
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-showcase-card:hover .project-card-image-wrap img {
  transform: scale(1.08);
}

/* Dark hover overlay */
.project-card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(10, 10, 10, 0.85) 0%, rgba(10, 10, 10, 0.1) 100%);
  opacity: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2.2rem;
  transition: opacity 0.45s ease;
  z-index: 2;
}

.project-showcase-card:hover .project-card-overlay {
  opacity: 1;
}

/* Card details always visible (bottom part) or overlay detail */
.project-card-details {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.project-category-tag {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--brand-cyan, #06b6d4);
  margin-bottom: 0.8rem;
  display: inline-block;
}

.project-card-details h3 {
  font-size: var(--fs-md);
  font-weight: 700;
  margin-bottom: 0.8rem;
  transition: color 0.3s ease;
}

.project-showcase-card:hover .project-card-details h3 {
  color: var(--brand-cyan, #06b6d4);
}

.project-card-details p {
  font-size: var(--fs-sm);
  color: var(--fg-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.project-view-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  color: var(--fg);
  text-decoration: none;
  transition: all 0.3s ease;
}

.project-view-btn i {
  font-size: 1.1rem;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-showcase-card:hover .project-view-btn {
  color: var(--brand-cyan, #06b6d4);
}

.project-showcase-card:hover .project-view-btn i {
  transform: translate3d(5px, -3px, 0);
}

/* Card Hover glow border effect */
.project-showcase-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 24px;
  border: 1px solid transparent;
  pointer-events: none;
  transition: border-color 0.4s ease, box-shadow 0.4s ease;
}

.project-showcase-card:hover::after {
  border-color: rgba(6, 182, 212, 0.2);
  box-shadow: 0 0 25px rgba(6, 182, 212, 0.1);
}

/* Filtering Transitions classes */
.portfolio-item-hidden {
  display: none !important;
  opacity: 0;
  transform: scale(0.9);
}

/* --- Load More Button --- */
.load-more-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 4rem;
  position: relative;
  z-index: 5;
}

.load-more-btn {
  padding: 12px 36px;
  border-radius: 30px;
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--fg);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] .load-more-btn {
  background: rgba(255, 255, 255, 0.02);
  border-color: rgba(255, 255, 255, 0.06);
}

.load-more-btn:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.load-more-btn.is-loading {
  pointer-events: none;
  opacity: 0.7;
}

.load-more-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spinnerRotate 0.8s infinite linear;
  display: none;
}

.load-more-btn.is-loading .load-more-spinner {
  display: inline-block;
}

@keyframes spinnerRotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* GPU Hardware Acceleration for smooth elements */
.project-showcase-card,
.project-card-image-wrap img,
.project-card-overlay,
.filter-pill-btn,
.load-more-btn {
  will-change: transform;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform: translate3d(0, 0, 0);
}

/* --- Responsive Breakpoints --- */
@media (max-width: 991px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.8rem;
  }
  .project-card-image-wrap {
    height: 300px;
  }
}

@media (max-width: 768px) {
  .portfolio-filter-section {
    padding: 2rem 0;
  }
  .filter-pills-wrap {
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 12px;
    -webkit-overflow-scrolling: touch;
  }
  .filter-pills-wrap::-webkit-scrollbar {
    height: 4px;
  }
  .filter-pills-wrap::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 2px;
  }
  .filter-pill-btn {
    white-space: nowrap;
    padding: 8px 18px;
  }
  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: 1.8rem;
  }
}