/* ==========================================
   MEHROTECH - Portfolio Page Styles
   Premium Bento Grid + Featured Showcase
   ========================================== */

/* --- Hero Section --- */
.portfolio-hero {
  padding: 10rem 0 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse at 30% 20%, rgba(239,68,68,0.14) 0%, transparent 55%),
              radial-gradient(ellipse at 70% 80%, rgba(185,28,28,0.08) 0%, transparent 50%);
}

.portfolio-hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 600px;
  height: 600px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(239,68,68,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.portfolio-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 800;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.portfolio-hero .hero-subtitle {
  color: var(--color-text-muted);
  max-width: 620px;
  margin: 0 auto;
  font-size: 1.15rem;
  line-height: 1.7;
}

.portfolio-hero .hero-line {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  margin: 2rem auto;
  border-radius: 999px;
}

/* --- Stats Strip --- */
.portfolio-stats-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin: 0 auto 4rem;
  max-width: 900px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-border);
}

.stat-cell {
  background: var(--color-bg-card-strong);
  padding: 2rem 1.5rem;
  text-align: center;
  position: relative;
  transition: var(--transition-base);
}

.stat-cell:hover {
  background: rgba(239,68,68,0.05);
}

.stat-cell .stat-number {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  background: linear-gradient(135deg, #fff, var(--color-primary-light));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 0.35rem;
}

.stat-cell .stat-label {
  font-size: 0.8rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 500;
}

/* --- Featured Project Showcase (Horizontal Scroll) --- */
.featured-section {
  padding: 0 0 5rem;
  position: relative;
}

.featured-section .section-label {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
  padding: 0 1rem;
}

.featured-section .section-label::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 999px;
}

.featured-section .section-label span {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary-light);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.featured-scroll-wrapper {
  position: relative;
}

.featured-track {
  display: flex;
  gap: 2rem;
  padding: 0 1rem 1.5rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: rgba(239,68,68,0.3) transparent;
  cursor: grab;
}

.featured-track:active {
  cursor: grabbing;
}

.featured-track::-webkit-scrollbar {
  height: 4px;
}

.featured-track::-webkit-scrollbar-track {
  background: transparent;
}

.featured-track::-webkit-scrollbar-thumb {
  background: rgba(239,68,68,0.3);
  border-radius: 999px;
}

/* --- Featured Card --- */
.featured-card {
  flex: 0 0 min(85vw, 560px);
  scroll-snap-align: start;
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1),
              box-shadow 0.5s cubic-bezier(0.23, 1, 0.32, 1);
  border: 1px solid var(--color-border);
}

.featured-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 40px 80px rgba(0,0,0,0.4),
              0 0 60px rgba(239,68,68,0.08);
}

.featured-card-visual {
  height: 240px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.featured-card-visual .visual-bg {
  position: absolute;
  inset: 0;
  opacity: 0.12;
  transition: opacity 0.5s ease;
}

.featured-card:hover .visual-bg {
  opacity: 0.18;
}

.featured-card-visual .visual-icon {
  position: relative;
  z-index: 1;
  width: 80px;
  height: 80px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  transition: var(--transition-bounce);
}

.featured-card:hover .visual-icon {
  transform: scale(1.15) rotate(-3deg);
}

.featured-card-visual .card-number {
  position: absolute;
  top: 1.25rem;
  left: 1.5rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.1em;
}

.featured-card-visual .year-badge {
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--color-text-muted);
}

.featured-card-body {
  padding: 1.75rem;
  background: var(--color-bg-card-strong);
}

.featured-card-body .card-category {
  font-size: 0.7rem;
  color: var(--color-primary-light);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.featured-card-body h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.featured-card-body .card-desc {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.featured-card-body .card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
}

.featured-card-body .card-client {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--color-text-dim);
}

.featured-card-body .card-client i {
  color: var(--color-primary-light);
  font-size: 0.7rem;
}

.featured-card-body .card-tech-mini {
  display: flex;
  gap: 0.4rem;
}

.featured-card-body .card-tech-mini span {
  font-size: 0.65rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-border);
  color: var(--color-text-dim);
  white-space: nowrap;
}

/* --- Filter Bar --- */
.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin: 0 0 3rem;
  padding: 0.5rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.filter-btn {
  padding: 0.55rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: pointer;
  color: var(--color-text-muted);
  background: transparent;
  border: none;
  position: relative;
}

.filter-btn:hover {
  color: var(--color-text);
  background: rgba(255,255,255,0.05);
}

.filter-btn.active {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  box-shadow: 0 4px 20px rgba(239,68,68,0.35);
}

/* --- Bento Grid --- */
.bento-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  padding-bottom: 4rem;
}

.bento-card {
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1),
              box-shadow 0.4s ease,
              border-color 0.4s ease;
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  cursor: pointer;
}

.bento-card.hidden {
  display: none;
}

.bento-card.filtering {
  animation: bentoReveal 0.5s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}

@keyframes bentoReveal {
  from { opacity: 0; transform: scale(0.92) translateY(16px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.bento-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 60px rgba(0,0,0,0.35),
              0 0 30px rgba(239,68,68,0.06);
  border-color: rgba(239,68,68,0.15);
}

/* Bento Card Inner */
.bento-card-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.bento-card-header {
  padding: 1.5rem 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.bento-card-header .bento-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  transition: var(--transition-bounce);
}

.bento-card:hover .bento-icon {
  transform: scale(1.1) rotate(-5deg);
}

.bento-card-header .bento-year {
  font-size: 0.7rem;
  color: var(--color-text-dim);
  font-weight: 500;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
}

.bento-card-content {
  padding: 1.25rem 1.5rem 0;
  flex: 1;
}

.bento-card-content .bento-category {
  font-size: 0.65rem;
  color: var(--color-primary-light);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.bento-card-content h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.bento-card-content .bento-desc {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.bento-card-footer {
  padding: 1rem 1.5rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.bento-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.bento-tech-tags span {
  font-size: 0.6rem;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  color: var(--color-text-dim);
}

.bento-card-footer .bento-arrow {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-border);
  color: var(--color-text-dim);
  transition: var(--transition-base);
  flex-shrink: 0;
}

.bento-card:hover .bento-arrow {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  transform: translateX(3px);
}

/* --- Project Detail Modal (redesigned) --- */
.project-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-modal-overlay.active {
  display: flex;
  opacity: 1;
}

.project-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.88);
  backdrop-filter: blur(16px);
}

.project-modal {
  position: relative;
  width: 100%;
  max-width: 640px;
  margin: 1rem;
  padding: 2.5rem;
  border-radius: var(--radius-xl);
  max-height: 90vh;
  overflow-y: auto;
  background: var(--color-bg-card-strong);
  border: 1px solid var(--color-border-light);
  backdrop-filter: blur(40px);
  animation: modalSlideUp 0.4s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}

@keyframes modalSlideUp {
  from { opacity: 0; transform: translateY(40px) scale(0.95); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.project-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.project-modal-category {
  font-size: 0.75rem;
  color: var(--color-primary-light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
}

.project-modal-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0.5rem 0 0;
  line-height: 1.3;
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: var(--transition-base);
  flex-shrink: 0;
}

.modal-close:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.project-modal-desc {
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.project-modal-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.project-detail-item {
  padding: 1rem;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
}

.project-detail-label {
  font-size: 0.7rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
  font-weight: 500;
}

.project-detail-value {
  font-weight: 600;
  font-size: 0.95rem;
}

.project-modal-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.project-modal-tech span {
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-primary-light);
  background: rgba(239,68,68,0.06);
  border: 1px solid rgba(239,68,68,0.12);
}

/* --- CTA Section --- */
.portfolio-cta {
  text-align: center;
  padding: 5rem 0;
  position: relative;
  background: radial-gradient(ellipse at center, rgba(239,68,68,0.08) 0%, transparent 65%);
}

.portfolio-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border-light), transparent);
}

.portfolio-cta h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4.5vw, 2.75rem);
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.portfolio-cta p {
  color: var(--color-text-muted);
  max-width: 480px;
  margin: 0 auto 2.5rem;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* --- Scroll Progress Indicator --- */
.scroll-progress {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.scroll-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  transition: all 0.3s ease;
}

.scroll-dot.active {
  background: var(--color-primary);
  width: 20px;
  border-radius: 999px;
}

/* --- Responsive --- */
@media (min-width: 500px) {
  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 640px) {
  .portfolio-stats-strip {
    grid-template-columns: repeat(4, 1fr);
  }

  .featured-track {
    padding: 0 2rem 1.5rem;
  }

  .featured-section .section-label {
    padding: 0 2rem;
  }
}

@media (min-width: 768px) {
  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  /* Make some cards span full width for visual variety */
  .bento-card:nth-child(5n + 1) {
    grid-column: span 2;
  }

  .bento-card:nth-child(5n + 1) .bento-card-inner {
    flex-direction: row;
  }

  .bento-card:nth-child(5n + 1) .bento-card-header {
    padding: 1.5rem;
    flex-direction: column;
    gap: 1rem;
    justify-content: flex-start;
    align-items: flex-start;
    border-right: 1px solid var(--color-border);
    min-width: 120px;
  }

  .bento-card:nth-child(5n + 1) .bento-card-content {
    padding: 1.5rem 1.5rem 0;
  }

  .bento-card:nth-child(5n + 1) .bento-card-content .bento-desc {
    -webkit-line-clamp: 3;
  }

  .bento-card:nth-child(5n + 1) .bento-card-footer {
    padding: 1rem 1.5rem 1.5rem;
  }
}

@media (min-width: 1024px) {
  .bento-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .bento-card:nth-child(5n + 1) {
    grid-column: span 2;
  }

  .featured-card {
    flex: 0 0 520px;
  }

  .featured-card-visual {
    height: 280px;
  }

  .portfolio-hero {
    padding: 12rem 0 4rem;
  }
}

@media (min-width: 1280px) {
  .featured-card {
    flex: 0 0 560px;
  }
}

/* --- Animate on scroll --- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.23, 1, 0.32, 1),
              transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.bento-grid .animate-on-scroll:nth-child(1) { transition-delay: 0s; }
.bento-grid .animate-on-scroll:nth-child(2) { transition-delay: 0.05s; }
.bento-grid .animate-on-scroll:nth-child(3) { transition-delay: 0.1s; }
.bento-grid .animate-on-scroll:nth-child(4) { transition-delay: 0.15s; }
.bento-grid .animate-on-scroll:nth-child(5) { transition-delay: 0.2s; }
.bento-grid .animate-on-scroll:nth-child(6) { transition-delay: 0.25s; }
.bento-grid .animate-on-scroll:nth-child(7) { transition-delay: 0.3s; }
.bento-grid .animate-on-scroll:nth-child(8) { transition-delay: 0.35s; }

/* --- Portfolio Media Updates --- */
.card-cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}
.featured-card:hover .card-cover-img {
  transform: scale(1.05);
}

.bento-cover-container {
  height: 200px;
  position: relative;
  overflow: hidden;
}
.bento-cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}
.bento-card:hover .bento-cover-img {
  transform: scale(1.05);
}

.project-modal-media {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.pm-img-wrap img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}
.pm-video-wrap {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 ratio */
  height: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}
.pm-video-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}