/* ============================================
   PORTFOLIO PAGE STYLES
   MontPC Design System - Réalisations
   ============================================ */

/* ========== FILTER BAR (STICKY) ========== */
.portfolio-filter-bar {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--white);
  border-bottom: 1px solid var(--grey-200);
  padding: 20px 0;
  transition: all var(--transition-base);
}

.filter-container {
  max-width: var(--width-content);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.filter-btn {
  padding: 14px 28px;
  background: var(--white);
  border: 2px solid var(--grey-200);
  border-radius: var(--radius-lg);
  font-size: 15px;
  font-weight: var(--font-weight-semibold);
  color: var(--grey-700);
  cursor: pointer;
  transition: all var(--transition-smooth);
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.filter-btn:hover {
  border-color: var(--orange-500);
  background: var(--orange-50);
  color: var(--grey-900);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.filter-btn.active {
  background: var(--orange-500);
  border-color: var(--orange-500);
  color: var(--white);
  box-shadow: var(--shadow-orange);
  transform: translateY(-2px);
}

/* ========== PORTFOLIO SECTIONS ========== */
.portfolio-section {
  padding: var(--space-4xl) var(--space-md);
}

.portfolio-section-live {
  background: var(--white);
}

.portfolio-section-dev {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}

.portfolio-section-demos {
  background: var(--grey-50);
}

.portfolio-container {
  max-width: var(--width-content);
  margin: 0 auto;
}

/* Section Headers */
.portfolio-section .section-header {
  max-width: 800px;
  margin: 0 auto var(--space-3xl);
  text-align: center;
}

.portfolio-section .section-overline {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--orange-500);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wider);
  margin-bottom: var(--space-sm);
}

.portfolio-section .section-title {
  font-size: var(--font-size-section-title);
  font-weight: var(--font-weight-bold);
  color: var(--grey-900);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
  margin-bottom: var(--space-md);
}

.portfolio-section .section-subtitle {
  font-size: var(--font-size-section-subtitle);
  color: var(--grey-600);
  line-height: var(--line-height-relaxed);
}

/* ========== PORTFOLIO GRID ========== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

/* ========== PROJECT CARDS ========== */
.project-card {
  background: var(--white);
  border: 1px solid var(--grey-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-smooth);
  position: relative;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--grey-300);
}

/* Project Badge */
.project-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: var(--z-dropdown);
  padding: 8px 16px;
  border-radius: var(--radius-lg);
  font-size: 13px;
  font-weight: var(--font-weight-semibold);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.project-badge.live {
  background: rgba(255, 255, 255, 0.98);
  color: #22c55e;
  box-shadow: 0 4px 16px rgba(34, 197, 94, 0.15);
}

.project-badge.dev {
  background: rgba(255, 255, 255, 0.98);
  color: #3b82f6;
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.15);
}

.project-badge.demo {
  background: rgba(255, 255, 255, 0.98);
  color: var(--orange-500);
  box-shadow: 0 4px 16px rgba(255, 107, 74, 0.15);
}

/* Project Visual */
.project-visual {
  position: relative;
  height: 240px;
  background: linear-gradient(135deg, var(--grey-100) 0%, var(--grey-50) 100%);
  overflow: hidden;
  border-bottom: 1px solid var(--grey-200);
  padding: 12px;
}

.project-visual picture,
.project-visual img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: all var(--transition-smooth);
  display: block;
}

.project-card:hover .project-visual picture img,
.project-card:hover .project-visual img {
  transform: scale(1.05);
}

/* Project Content */
.project-content {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.project-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--grey-900);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-xs);
}

.project-category {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--orange-500);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.project-description {
  font-size: var(--font-size-sm);
  color: var(--grey-600);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-md);
  flex: 1;
}

/* Project Tech Tags */
.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--space-md);
}

.tech-tag {
  padding: 4px 12px;
  background: var(--grey-100);
  border: 1px solid var(--grey-200);
  border-radius: var(--radius-md);
  font-size: 11px;
  font-weight: var(--font-weight-medium);
  color: var(--grey-700);
  transition: all var(--transition-fast);
}

.project-card:hover .tech-tag {
  background: var(--grey-50);
  border-color: var(--grey-300);
}

/* Project Results */
.project-results {
  padding: var(--space-sm);
  background: var(--orange-50);
  border-left: 3px solid var(--orange-500);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  color: var(--grey-700);
  margin-bottom: var(--space-md);
}

.project-results strong {
  color: var(--grey-900);
}

/* Project Actions */
.project-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: auto;
}

.btn-project-detail,
.btn-project-demo {
  flex: 1;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  display: inline-block;
}

.btn-project-detail {
  background: var(--white);
  border: 2px solid var(--grey-300);
  color: var(--grey-900);
}

.btn-project-detail:hover {
  background: var(--grey-900);
  border-color: var(--grey-900);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-project-demo {
  background: var(--orange-500);
  border: 2px solid var(--orange-500);
  color: var(--white);
}

.btn-project-demo:hover {
  background: var(--orange-600);
  border-color: var(--orange-600);
  transform: translateY(-2px);
  box-shadow: var(--shadow-orange);
}

/* ========== PROJECT MODAL ========== */
.project-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-modal);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
}

.project-modal.active {
  display: flex;
}

.modal-content {
  background: var(--white);
  border-radius: var(--radius-2xl);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: modalSlideUp 0.3s ease-out;
}

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

.modal-header {
  position: relative;
  padding: var(--space-xl);
  border-bottom: 1px solid var(--grey-200);
}

.modal-close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--grey-100);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.modal-close:hover {
  background: var(--grey-900);
  color: var(--white);
  transform: rotate(90deg);
}

.modal-body {
  padding: var(--space-xl);
}

.modal-visual {
  height: 400px;
  background: linear-gradient(135deg, var(--grey-100) 0%, var(--grey-50) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  overflow: hidden;
  border: 1px solid var(--grey-200);
}

.modal-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.modal-visual .project-icon {
  font-size: 120px;
}

.modal-section {
  margin-bottom: var(--space-lg);
}

.modal-section h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--grey-900);
  margin-bottom: var(--space-sm);
}

.modal-section p {
  font-size: var(--font-size-base);
  color: var(--grey-600);
  line-height: var(--line-height-relaxed);
}

.modal-tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.modal-tech-item {
  padding: 10px 18px;
  background: var(--grey-100);
  border: 1px solid var(--grey-200);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--grey-700);
}

.modal-results {
  padding: var(--space-lg);
  background: var(--orange-50);
  border-left: 4px solid var(--orange-500);
  border-radius: var(--radius-lg);
}

.modal-results strong {
  display: block;
  font-size: var(--font-size-lg);
  color: var(--grey-900);
  margin-bottom: var(--space-sm);
}

.modal-results ul {
  list-style: none;
  padding: 0;
}

.modal-results li {
  padding: 8px 0;
  color: var(--grey-700);
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
}

.modal-results li:before {
  content: "✓ ";
  color: var(--orange-500);
  font-weight: var(--font-weight-bold);
  margin-right: 8px;
}

/* ========== FILTER STATES ========== */
.project-card.hidden {
  display: none;
}

/* ========== CTA FEATURES OVERRIDE ========== */
.cta-features-business {
  display: flex;
  gap: 40px;
  justify-content: center;
  margin-top: 48px;
  padding-top: 48px;
  border-top: 1px solid var(--grey-200);
  flex-wrap: wrap;
}

.cta-features-business .cta-feature {
  display: flex;
  align-items: center;
  gap: 16px;
}

.cta-features-business .cta-feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: var(--orange-50);
  border: 2px solid rgba(255, 107, 74, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
  transition: all var(--transition-base);
}

.cta-features-business .cta-feature:hover .cta-feature-icon {
  background: var(--orange-500);
  border-color: var(--orange-500);
  transform: scale(1.05);
}

.cta-features-business .cta-feature:hover .cta-feature-icon {
  filter: grayscale(0);
}

.cta-features-business .cta-feature-text {
  text-align: left;
}

.cta-features-business .cta-feature-label {
  font-weight: var(--font-weight-semibold);
  color: var(--grey-900);
  margin-bottom: 4px;
  font-size: var(--font-size-base);
}

.cta-features-business .cta-feature-value {
  font-size: var(--font-size-sm);
  color: var(--grey-600);
  line-height: var(--line-height-relaxed);
}

/* ========== RESPONSIVE BREAKPOINTS ========== */

/* Desktop Large (1200px+) */
@media (min-width: 1200px) {
  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Tablet (768px - 1199px) */
@media (min-width: 768px) and (max-width: 1199px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .portfolio-section {
    padding: var(--space-3xl) var(--space-md);
  }

  .project-visual {
    height: 180px;
  }

  .project-icon {
    font-size: 56px;
  }
}

/* Mobile (max 767px) */
@media (max-width: 767px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .portfolio-section {
    padding: var(--space-2xl) var(--space-sm);
  }

  .portfolio-section .section-header {
    margin-bottom: var(--space-2xl);
  }

  .filter-container {
    padding: 0 var(--space-sm);
    gap: var(--space-xs);
  }

  .filter-btn {
    padding: 10px 18px;
    font-size: 13px;
  }

  .project-visual {
    height: 160px;
  }

  .project-icon {
    font-size: 48px;
  }

  .project-content {
    padding: var(--space-md);
  }

  .project-title {
    font-size: var(--font-size-lg);
  }

  .project-actions {
    flex-direction: column;
  }

  .btn-project-detail,
  .btn-project-demo {
    width: 100%;
  }

  /* Modal adjustments */
  .modal-content {
    max-width: 100%;
    max-height: 100vh;
    border-radius: 0;
  }

  .modal-visual {
    height: 200px;
  }

  .modal-visual .project-icon {
    font-size: 80px;
  }

  .modal-header,
  .modal-body {
    padding: var(--space-lg);
  }
}

/* Small Mobile (max 480px) */
@media (max-width: 480px) {
  .portfolio-section {
    padding: var(--space-xl) var(--space-sm);
  }

  .filter-btn {
    padding: 8px 14px;
    font-size: 12px;
  }

  .project-visual {
    height: 140px;
  }

  .project-icon {
    font-size: 40px;
  }

  .tech-tag {
    font-size: 10px;
    padding: 3px 10px;
  }
}

/* ========== LOADING STATES ========== */
.project-card.loading {
  opacity: 0.5;
  pointer-events: none;
}

.project-card.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  border: 3px solid var(--grey-200);
  border-top-color: var(--orange-500);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

/* ========== PRINT STYLES ========== */
@media print {
  .portfolio-filter-bar,
  .project-actions,
  .project-badge {
    display: none;
  }

  .project-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ddd;
  }

  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

/* ========== IMAGE LIGHTBOX MODAL ========== */
.image-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(8px);
  padding: 20px;
}

.image-modal.active {
  display: flex;
}

.image-modal-content {
  max-width: 95vw;
  max-height: 95vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-modal-content img {
  max-width: 100%;
  max-height: 95vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  animation: imageZoomIn 0.3s ease-out;
}

@keyframes imageZoomIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.image-modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  color: white;
  z-index: 10000;
}

.image-modal-close:hover {
  background: var(--white);
  color: var(--grey-900);
  transform: rotate(90deg);
  border-color: var(--white);
}

/* ========== ACCESSIBILITY ========== */
.filter-btn:focus,
.btn-project-detail:focus,
.btn-project-demo:focus,
.modal-close:focus,
.image-modal-close:focus {
  outline: 3px solid var(--orange-500);
  outline-offset: 2px;
}

.project-card:focus-within {
  outline: 2px solid var(--orange-500);
  outline-offset: 4px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .project-card,
  .filter-btn,
  .btn-project-detail,
  .btn-project-demo,
  .modal-content,
  .project-icon {
    transition: none;
    animation: none;
  }

  .project-card:hover {
    transform: none;
  }

  .modal-close:hover {
    transform: none;
  }
}

/* ============================================
   PORTFOLIO PREVIEW SECTION (Homepage)
   ============================================ */

.portfolio-preview {
    padding: 120px 24px;
    background: var(--grey-50);
}

.portfolio-container {
    max-width: 1200px;
    margin: 0 auto;
}

.portfolio-preview .section-header {
    text-align: center;
    margin-bottom: 60px;
}

.portfolio-preview .section-label {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--orange-500);
    margin-bottom: 16px;
}

.portfolio-preview .section-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--grey-900);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.portfolio-preview .section-subtitle {
    font-size: 18px;
    color: var(--grey-600);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 48px;
}

.portfolio-card {
    position: relative;
    border-radius: 12px;
    background: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    text-decoration: none;
    display: block;
    padding: 8px;
}

.portfolio-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.portfolio-image {
    position: relative;
    width: 100%;
    height: 280px;
    overflow: hidden;
    border-radius: 8px;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: all 0.4s ease;
    filter: grayscale(60%) brightness(0.85);
    transform: scale(1.02);
}

.portfolio-card:hover .portfolio-image img {
    transform: scale(1.06);
    filter: grayscale(0%) brightness(1);
}

.portfolio-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(23, 23, 23, 0.15);
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.portfolio-card:hover .portfolio-image::after {
    opacity: 0;
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.5) 70%, transparent 100%);
    color: white;
    transform: translateY(20%);
    transition: transform 0.3s ease;
    z-index: 2;
}

.portfolio-card:hover .portfolio-overlay {
    transform: translateY(0);
}

.portfolio-category {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 12px;
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.portfolio-title {
    font-size: 22px;
    font-weight: 700;
    color: white;
    margin-bottom: 8px;
    letter-spacing: -0.3px;
}

.portfolio-description {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.5;
    margin-bottom: 12px;
}

.portfolio-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: white;
    text-decoration: underline;
    opacity: 0.9;
}

.portfolio-cta {
    text-align: center;
}

.btn-secondary {
    display: inline-block;
    padding: 14px 32px;
    background: white;
    color: var(--grey-900);
    border: 2px solid var(--grey-300);
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: var(--orange-500);
    color: white;
    border-color: var(--orange-500);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 74, 0.3);
}

/* Responsive */
@media (max-width: 968px) {
    .portfolio-preview {
        padding: 80px 20px;
    }

    .portfolio-preview .section-title {
        font-size: 36px;
    }

    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .portfolio-image {
        height: 240px;
    }

    /* Tablet: Make overlay visible by default (no hover transform) */
    .portfolio-overlay {
        transform: translateY(0);
    }
}

@media (max-width: 640px) {
    .portfolio-preview {
        padding: 60px 16px;
    }

    .portfolio-preview .section-title {
        font-size: 32px;
    }

    .portfolio-preview .section-subtitle {
        font-size: 16px;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .portfolio-card {
        padding: 0;
        overflow: hidden;
    }

    .portfolio-image {
        height: 200px;
    }

    /* Mobile: Make overlay always visible (no hover effect) */
    .portfolio-overlay {
        position: static;
        transform: none;
        background: white;
        color: var(--grey-900);
        padding: 20px;
    }

    .portfolio-category {
        color: var(--orange-500);
        background: var(--orange-50);
        border-color: var(--orange-500);
    }

    .portfolio-title {
        font-size: 20px;
        color: var(--grey-900);
    }

    .portfolio-description {
        color: var(--grey-600);
    }

    .portfolio-link {
        color: var(--orange-500);
    }

    /* Mobile: Remove image filters (always show color) */
    .portfolio-image img {
        filter: none;
        transform: scale(1);
    }

    .portfolio-image::after {
        display: none;
    }
}