/**
 * Projects Showcase Stylesheet (No-Images, Clean Senior Engineering Theme)
 * Matches MappingNinja Landing Page & Design System perfectly.
 */

/* ==========================================================================
   CSS Variables & Foundations
   ========================================================================== */
:root {
  --primary-color: #4154f1;
  --primary-hover: #3144e5;
  --primary-light: rgba(65, 84, 241, 0.08);
  --primary-border: rgba(65, 84, 241, 0.2);
  --secondary-color: #012970;
  --accent-color: #ff0055;
  --text-dark: #444444;
  --text-muted: #64748b;
  --bg-light: #f6f9ff;
  --card-bg: #ffffff;
  --border-color: #e2e8f0;
  --card-radius: 12px;
  --shadow-sm: 0 2px 12px rgba(1, 41, 112, 0.06);
  --shadow-md: 0 8px 24px rgba(1, 41, 112, 0.08);
  --shadow-hover: 0 16px 36px rgba(65, 84, 241, 0.14);
  --transition-base: all 0.3s ease;
}

/* ==========================================================================
   Hero Section for Projects Page (Consistent with Landing & Services Page)
   ========================================================================== */
.projects-hero {
  padding: 160px 0 90px;
  background: url("/assets/img/hero-bg.png") top center no-repeat;
  background-size: cover;
  position: relative;
  overflow: hidden;
}

.projects-hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--secondary-color);
  margin-bottom: 20px;
  line-height: 1.2;
}

.projects-hero .highlight {
  color: var(--primary-color);
}

.projects-hero p {
  font-size: 1.2rem;
  color: #555555;
  margin-bottom: 35px;
  line-height: 1.6;
}

.projects-hero .hero-img-container {
  text-align: center;
}

.projects-hero .hero-img-container img {
  max-width: 100%;
  animation: floatProjectsHero 6s ease-in-out infinite;
}

@keyframes floatProjectsHero {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
  100% { transform: translateY(0px); }
}

/* ==========================================================================
   Projects Section & Container
   ========================================================================== */
.projects-section {
  padding: 60px 0 80px;
  background: var(--bg-light);
  position: relative;
}

.projects-section.featured-section {
  background: #ffffff;
  border-top: 1px solid #eef2f6;
  border-bottom: 1px solid #eef2f6;
}

/* ==========================================================================
   Search & Filter Toolbar
   ========================================================================== */
.projects-toolbar {
  margin-bottom: 40px;
  background: #ffffff;
  padding: 22px 26px;
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.search-box-wrapper {
  position: relative;
  width: 100%;
}

.search-box-wrapper .search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 18px;
  pointer-events: none;
}

.search-box-wrapper .search-input {
  width: 100%;
  padding: 12px 42px 12px 46px;
  font-size: 15px;
  color: #1e293b;
  background: #f8fafc;
  border: 1.5px solid var(--border-color);
  border-radius: 8px;
  outline: none;
  transition: var(--transition-base);
}

.search-box-wrapper .search-input:focus {
  background: #ffffff;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.search-box-wrapper .search-clear-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 16px;
  cursor: pointer;
  padding: 4px 6px;
  display: none;
  border-radius: 50%;
}

.search-box-wrapper .search-clear-btn:hover {
  color: var(--secondary-color);
}

.filter-pills-container {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
  align-items: center;
}

.filter-btn {
  background: #f1f5f9;
  color: #334155;
  border: 1px solid transparent;
  padding: 6px 15px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.filter-btn .count-badge {
  background: rgba(0, 0, 0, 0.08);
  padding: 1px 7px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 700;
}

.filter-btn:hover {
  background: #e2e8f0;
  color: var(--secondary-color);
}

.filter-btn.active {
  background: var(--primary-color);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(65, 84, 241, 0.3);
  border-color: var(--primary-color);
}

.filter-btn.active .count-badge {
  background: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}

.filter-status-text {
  font-size: 13.5px;
  color: var(--text-muted);
  margin-top: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ==========================================================================
   Project Cards Grid (Pure Code / Image-Free Senior Engineering Cards)
   ========================================================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.project-card {
  background: #ffffff;
  border-radius: var(--card-radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color) 0%, #00d2ff 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-border);
}

.project-card:hover::before {
  opacity: 1;
}

/* Card Header (Category Pill, Icon & Featured Tag) */
.project-card-header {
  padding: 22px 24px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #f8fafc;
}

.project-cat-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary-color);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.3px;
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid var(--primary-border);
}

.project-cat-pill i {
  font-size: 13px;
}

.project-featured-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #fffbeb;
  color: #b45309;
  border: 1px solid #fde68a;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 12px;
}

/* Card Body */
.project-card-body {
  padding: 16px 24px 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-card-title {
  font-size: 18.5px;
  font-weight: 700;
  color: var(--secondary-color);
  margin-bottom: 10px;
  line-height: 1.35;
  transition: color 0.2s ease;
}

.project-card:hover .project-card-title {
  color: var(--primary-color);
}

.project-card-description {
  font-size: 13.5px;
  line-height: 1.6;
  color: #64748b;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Highlights Snippet on Card */
.project-card-highlights-preview {
  list-style: none;
  padding: 0;
  margin: 0 0 16px 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.project-card-highlights-preview li {
  font-size: 12.5px;
  color: #475569;
  line-height: 1.45;
  position: relative;
  padding-left: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-card-highlights-preview li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: #10b981;
  font-weight: 800;
  font-size: 12px;
}

/* Card Tech Stack Chips */
.project-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: auto;
  margin-bottom: 18px;
}

.tech-tag {
  background: #f1f5f9;
  color: #475569;
  font-size: 11.5px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 6px;
  border: 1px solid #e2e8f0;
}

.tech-tag.more-tag {
  background: var(--primary-light);
  color: var(--primary-color);
  border-color: var(--primary-border);
  font-weight: 700;
}

/* Card Footer Actions (Full-Width Button) */
.project-card-footer {
  display: block;
  width: 100%;
  padding-top: 16px;
  border-top: 1px solid #f1f5f9;
}

.btn-view-details {
  width: 100%;
  background: #ffffff;
  color: var(--primary-color);
  border: 1.5px solid var(--primary-color);
  padding: 10px 20px;
  border-radius: 50px;
  font-size: 13.5px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  transition: var(--transition-base);
  box-shadow: 0 2px 6px rgba(65, 84, 241, 0.08);
  text-align: center;
}

.btn-view-details i {
  font-size: 14px;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-view-details:hover {
  background: linear-gradient(135deg, var(--primary-color) 0%, #3144e5 100%);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(65, 84, 241, 0.35);
  transform: translateY(-2px);
}

.btn-view-details:hover i {
  transform: translateX(4px);
}

/* ==========================================================================
   Home Featured CTA Button
   ========================================================================== */
.projects-cta-box {
  margin-top: 45px;
  text-align: center;
}

.btn-view-all-projects {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-color);
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 32px;
  border-radius: 50px;
  box-shadow: 0px 5px 25px rgba(65, 84, 241, 0.35);
  border: none;
  transition: var(--transition-base);
  text-decoration: none;
}

.btn-view-all-projects:hover {
  color: #ffffff;
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(65, 84, 241, 0.45);
}

.btn-view-all-projects i {
  transition: transform 0.2s ease;
}

.btn-view-all-projects:hover i {
  transform: translateX(4px);
}

/* ==========================================================================
   Empty State
   ========================================================================== */
.projects-empty-state {
  text-align: center;
  padding: 60px 20px;
  background: #ffffff;
  border-radius: var(--card-radius);
  border: 1.5px dashed var(--border-color);
  margin: 30px 0;
  display: none;
}

.projects-empty-state.show {
  display: block;
}

.projects-empty-state i {
  font-size: 48px;
  color: #94a3b8;
  margin-bottom: 12px;
  display: inline-block;
}

.projects-empty-state h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--secondary-color);
  margin-bottom: 6px;
}

.projects-empty-state p {
  color: var(--text-muted);
  font-size: 14.5px;
  max-width: 440px;
  margin: 0 auto 18px;
}

.btn-clear-filters {
  background: var(--primary-color);
  color: #ffffff;
  border: none;
  padding: 10px 26px;
  border-radius: 50px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
}

.btn-clear-filters:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 12px rgba(65, 84, 241, 0.3);
}

/* ==========================================================================
   Project Details Modal (Image-Free, Clean Case-Study Viewer)
   ========================================================================== */
body.projects-modal-open {
  overflow: hidden !important;
}

.project-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(1, 41, 112, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 99990;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.28s ease, visibility 0.28s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.project-modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.project-modal-dialog {
  background: #ffffff;
  width: 100%;
  max-width: 820px;
  max-height: 88vh;
  border-radius: 16px;
  box-shadow: 0 25px 60px rgba(1, 41, 112, 0.2);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
  transform: scale(0.94) translateY(15px);
  opacity: 0;
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.28s ease;
  border: 1px solid var(--border-color);
}

.project-modal-backdrop.active .project-modal-dialog {
  transform: scale(1) translateY(0);
  opacity: 1;
}

/* Modal Top Bar Accent */
.project-modal-top-accent {
  height: 5px;
  width: 100%;
  background: linear-gradient(90deg, var(--primary-color) 0%, #00d2ff 100%);
}

/* Modal Header */
.project-modal-header {
  padding: 24px 28px 18px;
  background: #ffffff;
  border-bottom: 1px solid #f1f5f9;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.project-modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #f1f5f9;
  border: none;
  color: #64748b;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-base);
}

.project-modal-close-btn:hover {
  background: #e2e8f0;
  color: var(--secondary-color);
}

.modal-header-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.project-modal-title {
  color: var(--secondary-color);
  font-size: 24px;
  font-weight: 800;
  margin: 0;
  line-height: 1.3;
}

/* Modal Scrollable Body */
.project-modal-body {
  padding: 26px 28px;
  overflow-y: auto;
  flex-grow: 1;
}

.project-modal-body::-webkit-scrollbar {
  width: 6px;
}

.project-modal-body::-webkit-scrollbar-track {
  background: #f8fafc;
}

.project-modal-body::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

.modal-section-block {
  margin-bottom: 24px;
}

.modal-section-title {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--secondary-color);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-section-title i {
  color: var(--primary-color);
  font-size: 16px;
}

.modal-overview-text {
  font-size: 14.5px;
  line-height: 1.7;
  color: #334155;
  margin: 0;
}

/* Highlights in Modal */
.modal-highlights-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modal-highlights-list li {
  position: relative;
  padding-left: 28px;
  font-size: 14px;
  line-height: 1.6;
  color: #334155;
}

.modal-highlights-list li .highlight-icon {
  position: absolute;
  left: 0;
  top: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
}

/* Modal Technologies Stack */
.modal-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.modal-tech-chip {
  background: #f1f5f9;
  color: #334155;
  font-size: 12.5px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 6px;
  border: 1px solid #e2e8f0;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.modal-tech-chip:hover {
  background: var(--primary-light);
  color: var(--primary-color);
  border-color: var(--primary-border);
}

/* Modal Links */
.modal-links-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.modal-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 24px;
  border-radius: 50px;
  font-size: 13.5px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition-base);
}

.modal-link-btn.primary {
  background: var(--primary-color);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(65, 84, 241, 0.25);
}

.modal-link-btn.primary:hover {
  background: var(--primary-hover);
  color: #ffffff;
  transform: translateY(-2px);
}

.modal-link-btn.secondary {
  background: #f8fafc;
  color: #334155;
  border: 1.5px solid #cbd5e1;
}

.modal-link-btn.secondary:hover {
  background: #e2e8f0;
  color: var(--secondary-color);
  transform: translateY(-2px);
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 1200px) {
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }
}

@media (max-width: 992px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
  }

  .projects-hero {
    padding: 130px 0 60px;
  }

  .projects-hero h1 {
    font-size: 2.5rem;
  }

  .projects-hero .hero-img-container {
    margin-top: 40px;
  }
}

@media (max-width: 768px) {
  .projects-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .projects-hero {
    padding: 120px 0 50px;
  }

  .projects-hero h1 {
    font-size: 2.1rem;
  }

  .projects-toolbar {
    padding: 16px;
  }

  .filter-btn {
    font-size: 12px;
    padding: 5px 12px;
  }

  /* Modal on Mobile */
  .project-modal-backdrop {
    padding: 12px;
  }

  .project-modal-dialog {
    max-height: 90vh;
  }

  .project-modal-header {
    padding: 20px 20px 14px;
  }

  .project-modal-title {
    font-size: 20px;
  }

  .project-modal-body {
    padding: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .project-card,
  .btn-view-details,
  .btn-view-all-projects,
  .project-modal-backdrop,
  .project-modal-dialog,
  .project-modal-close-btn,
  .filter-btn,
  .projects-hero .hero-img-container img {
    transition: none !important;
    transform: none !important;
    animation: none !important;
  }
}