:root {
    --primary-color: #0a0a0a;
    --secondary-color: #1a1a1a;
    --accent-color: #f5a623;
    --text-color: #ffffff;
    --text-secondary: #a0a0a0;
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }

  body {
    background-color: var(--primary-color);
    color: var(--text-color);
    font-family: 'Inter', 'Segoe UI', Roboto, sans-serif;
    margin: 0;
    padding: 0;
  }

  .project-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    min-height: 100vh;
    position: relative;
  }

  .project-sidebar {
    background-color: var(--secondary-color);
    padding: 3rem 2rem;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
  }

  .project-number {
    font-size: 1rem;
    color: var(--accent-color);
    margin-bottom: 2rem;
    font-weight: 500;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 1rem;
  }

  .project-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
  }

  .project-category {
    display: inline-block;
    background-color: rgba(245, 166, 35, 0.1);
    color: var(--accent-color);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.8rem;
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
  }

  .project-category:hover {
    background-color: var(--accent-color);
    color: var(--primary-color);
  }

  .skills-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 2rem 0;
  }

  .skill-tag {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 2rem;
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: inline-block;
    transition: var(--transition);
  }

  .skill-tag:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
  }

  .project-date {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
  }

  .project-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 2rem 0;
    position: sticky;
    top: 1rem;
    z-index: 10;
    background-color: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    padding: 1rem;
    border-radius: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-color);
    padding: 0.75rem 1.5rem;
    border-radius: 0.25rem;
    font-size: 0.9rem;
    text-decoration: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    flex: 1 1 auto;
    min-width: 150px;
  }

  .btn:hover {
    border-color: var(--accent-color);
    background-color: rgba(245, 166, 35, 0.05);
    transform: translateY(-2px);
  }

  .btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent-color);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
  }

  .btn:hover::after {
    transform: scaleX(1);
    transform-origin: left;
  }

  .btn-primary {
    background-color: var(--accent-color);
    color: var(--primary-color);
    border: none;
  }

  .btn-primary:hover {
    background-color: #e69100;
    transform: translateY(-2px);
  }

  .btn-primary::after {
    display: none;
  }

  .btn-icon {
    margin-right: 0.5rem;
  }

  .project-content {
    padding: 3rem;
    overflow-y: auto;
  }

  .project-description {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 800px;
  }

  /* Carousel Styles */
  .carousel-container {
    position: relative;
    width: 100%;
    max-width: 1000px;
    margin: 0 auto 3rem;
    overflow: hidden;
    border-radius: 0.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  }

  .carousel {
    display: flex;
    transition: transform 0.5s ease-in-out;
    height: 500px;
  }

  .carousel-slide {
    min-width: 100%;
    position: relative;
    background-color: var(--secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .carousel-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
  }

  .carousel-video-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .carousel-video {
    width: 100%;
    height: 100%;
  }

  .carousel-controls {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1rem;
    z-index: 10;
  }

  .carousel-btn {
    background-color: rgba(255, 255, 255, 0.1);
    border: none;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-color);
  }

  .carousel-btn:hover {
    background-color: var(--accent-color);
    color: var(--primary-color);
  }

  .carousel-indicators {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
  }

  .carousel-indicator {
    width: 2rem;
    height: 0.25rem;
    background-color: rgba(255, 255, 255, 0.2);
    cursor: pointer;
    transition: var(--transition);
  }

  .carousel-indicator.active {
    background-color: var(--accent-color);
  }

  .carousel-counter {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: rgba(0, 0, 0, 0.5);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.8rem;
    color: var(--text-color);
  }

  .download-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 2rem 0;
    padding: 2rem;
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: 0.5rem;
  }

  .download-title {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-color);
  }

  .download-btn {
    display: inline-flex;
    align-items: center;
    padding: 1rem 1.5rem;
    border: none;
    border-radius: 0.25rem;
    text-decoration: none;
    color: white;
    font-weight: 500;
    transition: var(--transition);
  }

  .download-btn img {
    width: 1.5rem;
    height: 1.5rem;
    margin-right: 0.75rem;
  }

  .amazon-btn {
    background-color: #FF9900;
  }

  .android-btn {
    background-color: #3DDC84;
  }

  .download-instruction {
    margin-top: 1rem;
    padding: 1rem;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 0.25rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
  }

  .videos-section {
    margin-top: 4rem;
  }

  .video-container {
    margin: 2rem 0;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  }

  .video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
  }

  .video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
  }

  .section-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    color: var(--text-color);
  }

  .section-title::before {
    content: '';
    display: inline-block;
    width: 2rem;
    height: 2px;
    background-color: var(--accent-color);
    margin-right: 1rem;
  }

  .core {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
  }

  /* Media Queries */
  @media (max-width: 1024px) {
    .project-container {
      grid-template-columns: 1fr;
    }
    
    .project-sidebar {
      position: relative;
      height: auto;
      padding: 2rem;
    }
    
    .carousel-container {
      height: 400px;
    }
  }

  @media (max-width: 768px) {
    .carousel-container {
      height: 300px;
    }
    
    .project-title {
      font-size: 2rem;
    }
    
    .project-actions {
      flex-direction: column;
    }
  }
  /* Floating Quick Action Bar for Chatbot */