/* ─────────────────────────────────────────────────────────
   Design Evaluation Section Styles
   ───────────────────────────────────────────────────────── */
   .design-evaluation-section {
    background: #fff;
    padding: 4rem 2rem;
  }
  .design-evaluation-section .text-center h2 {
    position: relative;
    font-size: 2.5rem;
    color: #2d3748;
    margin-bottom: 1.5rem;
  }
  .design-evaluation-section .text-center h2::after {
    content: '';
    display: block;
    margin: 0.5rem auto 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #6C5CE7, #00B894);
    border-radius: 2px;
  }
  
  /* Subsections */
  .design-evaluation-section .subsection {
    margin-top: 3rem;
  }
  .design-evaluation-section .subsection h3 {
    font-size: 1.75rem;
    background: linear-gradient(90deg, #e74c3c, #f1c40f);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
  }
  
  /* Metrics Table */
  .metrics-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
  }
  .metrics-table th,
  .metrics-table td {
    border: 1px solid #ddd;
    padding: 0.75rem;
  }
  .metrics-table thead th {
    background: #f1f1f1;
  }
  
  /* Figure Grid */
  .figure-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px,1fr));
    gap: 1.5rem;
    margin-top: 1rem;
  }
  .figure-grid figure {
    text-align: center;
  }
  .figure-grid img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .figure-grid img:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
  }
  .figure-grid figcaption {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: #4a5568;
  }
  

  /* ─────────────────────────────────────────────────────────
   Tracking Architecture Section
   ───────────────────────────────────────────────────────── */
.tracking-architecture-section {
    background: #f0f4f8;
    padding: 4rem 2rem;
  }
  .tracking-architecture-section .text-center h2 {
    font-size: 2.5rem;
    color: #2d3748;
    margin-bottom: 0.5rem;
  }
  .tracking-architecture-section .text-center p {
    color: #4a5568;
    max-width: 700px;
    margin: 0 auto 2rem;
    line-height: 1.6;
  }
  
  /* Flowchart container */
  .flowchart-interactive {
    width: 100%;
    height: 400px;
    background: url('images/flowchart-deer.png') center/contain no-repeat;
    border: 2px dashed #6C5CE7;
    border-radius: 8px;
    margin-bottom: 3rem;
    position: relative;
    /* Replace with an embedded SVG or Canvas for interactivity */
  }
  
  /* Explanation Cards */
  .explanation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px,1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
  }
  .explanation-card {
    background: #fff;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .explanation-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 36px rgba(0,0,0,0.12);
  }
  .explanation-card h3 {
    color: #6C5CE7;
    margin-bottom: 0.75rem;
  }
  .explanation-card p {
    color: #4a5568;
    line-height: 1.5;
  }
  
  /* Video Gallery (reusing .media-grid, .media-item from earlier) */
  .media-grid {
    margin-top: 2rem;
  }
  /* (media-item styles already in your CSS) */
  
  
/* Two-column flowchart + text */
/* Override for .flowchart-interactive */
.flowchart-interactive {
    display: flex;           /* lay out image + text side by side */
    flex-wrap: wrap;         /* wrap on small screens */
    gap: 2rem;               /* space between columns */
    padding: 2rem;
    background: #f9fafb;
    border: 2px dashed #6C5CE7;
    border-radius: 12px;
    margin-bottom: 3rem;
    height: auto !important; /* remove any fixed height */
  }
  
  
  .flowchart {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    align-items: flex-start;
  }
  
  /* Image container */
  .flowchart-image-container {
    flex: 1 1 400px;
    text-align: center;
  }
  .flowchart-image {
    max-width: 100%;
    height: auto;
    border: 3px solid #6C5CE7;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .flowchart-image:hover {
    transform: scale(1.02);
    box-shadow: 0 12px 36px rgba(0,0,0,0.2);
  }
  
  /* Text container */
  .flowchart-text {
    flex: 1 1 300px;
    font-family: 'Segoe UI', sans-serif;
    color: #2d3748;
  }
  .flowchart-text h3 {
    margin-top: 0;
    font-size: 1.75rem;
    color: #6C5CE7;
  }
  .flowchart-text ol {
    margin: 1rem 0;
    padding-left: 1.25rem;
  }
  .flowchart-text li {
    margin-bottom: 1rem;
    line-height: 1.6;
  }
  .flowchart-text strong {
    color: #34495e;
  }
  

  /* Pipeline Explanation Styling */
.flowchart-text {
    font-family: 'Segoe UI', sans-serif;
  }
  .flowchart-text h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(90deg, #6C5CE7, #00B894);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
  }
  .flowchart-text h3::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 50px;
    height: 4px;
    background: linear-gradient(90deg, #6C5CE7, #00B894);
    border-radius: 2px;
  }
  
  /* Remove the default bullets and add our own counter */
  .flowchart-text ol {
    counter-reset: step;
    list-style: none;
    padding: 0;
    margin: 0;
  }
  .flowchart-text li {
    counter-increment: step;
    position: relative;
    background: #ffffff;
    padding: 1rem 1rem 1rem 3.5rem;
    margin-bottom: 1rem;
    border-left: 4px solid #6C5CE7;
    border-radius: 6px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: default;
  }
  .flowchart-text li:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
  }
  
  /* Number badge */
  .flowchart-text li::before {
    content: counter(step);
    position: absolute;
    left:  -1.25rem;
    top: 50%;
    transform: translateY(-50%);
    width: 2rem;
    height: 2rem;
    background: #6C5CE7;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  }
  
  /* Emphasize the title of each step */
  .flowchart-text li strong {
    display: inline-block;
    margin-bottom: 0.25rem;
    color: #34495e;
    font-size: 1.1rem;
  }
  
  /* Smaller descriptive text */
  .flowchart-text li {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #4a5568;
  }
  


  /* Live Demos grid */
.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
  }
  
  /* Video card styling */
  .media-video {
    background: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 12px 32px rgba(0,0,0,0.12);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .media-video:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 48px rgba(0,0,0,0.16);
  }
  
  /* 16:9 wrapper */
  .media-video .video-wrapper {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 aspect */
    background: #000;
    cursor: pointer;
  }
  .media-video .video-thumb {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
  }
  
  /* Bigger play button */
  .media-video .play-button {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 80px; height: 80px;
    background: rgba(0,0,0,0.6) url('play-icon.svg') no-repeat center center;
    background-size: 50px 50px;
    border: none;
    border-radius: 50%;
    pointer-events: none;
    opacity: 0.9;
  }
  
  /* Caption */
  .media-video figcaption {
    padding: 1rem;
    font-size: 1rem;
    color: #2d3748;
    text-align: center;
  }