/* ===== COMMON CSS FOR ALL APP DEVELOPMENT PAGES ===== */
    :root {
      --primary: #007BFF;
      --primary-dark: #0066CC;
      --secondary: #6f42c1;
      --secondary-dark: #5a2d91;
      --accent: #00D4AA;
      --dark: #333333;
      --light: #F8F9FA;
      --transition: all 0.3s ease;
      --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
      --shadow-hover: 0 10px 25px rgba(0, 0, 0, 0.2);
      --gray: #6c757d;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: 'Poppins', sans-serif;
      line-height: 1.6;
      color: var(--dark);
      background-color: white;
    }

    h1, h2, h3, h4, h5, h6 {
      font-weight: 700;
      line-height: 1.2;
      margin-bottom: 1rem;
      color: var(--dark);
    }

    p {
      margin-bottom: 1.5rem;
      font-size: 1.1rem;
      color: var(--dark);
    }

    a {
      text-decoration: none;
      color: var(--primary);
      transition: var(--transition);
    }

    a:hover {
      color: var(--primary-dark);
    }

    img {
      max-width: 100%;
      height: auto;
      border-radius: 8px;
      display: block;
    }

    ul {
      list-style: none;
      padding-left: 0;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .section {
      padding: 80px 0;
    }

    .section-title {
      text-align: center;
      margin-bottom: 50px;
      position: relative;
    }

    .section-title h2 {
      font-size: 2.5rem;
      margin-bottom: 15px;
      color: var(--dark);
    }

    .section-title p {
      max-width: 700px;
      margin: 0 auto;
      color: var(--gray);
    }

    .btn {
      display: inline-block;
      padding: 12px 30px;
      background-color: var(--primary);
      color: white;
      border: none;
      border-radius: 5px;
      font-size: 1rem;
      font-weight: 500;
      cursor: pointer;
      transition: var(--transition);
      text-align: center;
    }

    .btn:hover {
      background-color: var(--primary-dark);
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      color: white;
    }

    .btn-secondary {
      background-color: var(--secondary);
    }

    .btn-secondary:hover {
      background-color: var(--secondary-dark);
    }

    .btn-outline {
      background-color: transparent;
      border: 2px solid var(--primary);
      color: var(--primary);
    }

    .btn-outline:hover {
      background-color: var(--primary);
      color: white;
    }

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

    /* ===== Hero Section ===== */
    .hero {
      background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1512941937669-90a1b58e7e9c?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
      background-size: cover;
      background-position: center;
      height: 60vh;
      min-height: 400px;
      display: flex;
      align-items: center;
      text-align: center;
      color: white;
      margin-top: 0;
    }

    .hero-content {
      max-width: 800px;
      margin: 0 auto;
    }

    .hero h1 {
      font-size: 3rem;
      margin-bottom: 20px;
      color: white;
      text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
    }

    .hero p {
      font-size: 1.2rem;
      margin-bottom: 30px;
      color: rgba(255, 255, 255, 0.9);
      text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
    }

    .hero-btns {
      display: flex;
      gap: 20px;
      justify-content: center;
    }

    /* ===== Content Sections ===== */
    .content-section {
      background-color: white;
    }

    .content-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      margin-top: 50px;
    }

    .content-card {
      background-color: white;
      border-radius: 10px;
      padding: 30px;
      box-shadow: var(--shadow);
      transition: var(--transition);
      text-align: center;
      border: 1px solid #eee;
    }

    .content-card:hover {
      transform: translateY(-10px);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }

    .content-icon {
      width: 80px;
      height: 80px;
      background-color: rgba(0, 123, 255, 0.1);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px;
      font-size: 2rem;
      color: var(--primary);
    }

    .feature-list {
      margin: 20px 0;
    }

    .feature-list li {
      margin-bottom: 10px;
      position: relative;
      padding-left: 25px;
      color: #555;
      text-align: left;
    }

    .feature-list li:before {
      content: '✓';
      font-weight: bold;
      position: absolute;
      left: 0;
      color: var(--primary);
    }

    /* ===== Sidebar Styles ===== */
    .sidebar {
      background-color: #f8f9fa;
      padding: 30px;
      border-radius: 10px;
      margin-top: 50px;
    }

    .sidebar h3 {
      margin-bottom: 20px;
      color: var(--primary);
      border-bottom: 2px solid var(--primary);
      padding-bottom: 10px;
    }

    .contact-info {
      margin-bottom: 30px;
    }

    .contact-info p {
      margin-bottom: 10px;
      display: flex;
      align-items: center;
    }

    .contact-info i {
      margin-right: 10px;
      color: var(--primary);
      width: 20px;
    }

    .page-links {
      margin-top: 30px;
    }

    .page-links h4 {
      margin-bottom: 15px;
      color: var(--dark);
    }

    .page-links ul li {
      margin-bottom: 10px;
    }

    .page-links ul li a {
      color: var(--dark);
      transition: var(--transition);
      display: block;
      padding: 8px 0;
      border-bottom: 1px solid #eee;
    }

    .page-links ul li a:hover {
      color: var(--primary);
      padding-left: 10px;
    }

    /* ===== Technology Stack ===== */
    .tech-stack {
      background-color: #f8f9fa;
    }

    .tech-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 30px;
      margin-top: 50px;
    }

    .tech-card {
      background-color: white;
      border-radius: 10px;
      padding: 30px 20px;
      box-shadow: var(--shadow);
      transition: var(--transition);
      text-align: center;
      border: 1px solid #eee;
    }

    .tech-card:hover {
      transform: translateY(-10px);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }

    .tech-icon {
      font-size: 3rem;
      margin-bottom: 15px;
      color: var(--primary);
    }

    /* ===== Process Section ===== */
    .process-steps {
      position: relative;
      max-width: 800px;
      margin: 50px auto 0;
    }

    .process-steps::before {
      content: '';
      position: absolute;
      width: 2px;
      height: 100%;
      background-color: var(--primary);
      left: 50%;
      transform: translateX(-50%);
    }

    .process-step {
      position: relative;
      margin-bottom: 40px;
      padding: 0 40px;
    }

    .process-step:nth-child(odd) {
      text-align: right;
      padding-right: 60px;
    }

    .process-step:nth-child(even) {
      text-align: left;
      padding-left: 60px;
    }

    .step-number {
      width: 40px;
      height: 40px;
      background-color: var(--primary);
      color: white;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
    }

    /* ===== CTA Section ===== */
    .cta {
      background: linear-gradient(rgba(0, 123, 255, 0.9), rgba(0, 123, 255, 0.9)), url('https://images.unsplash.com/photo-1512941937669-90a1b58e7e9c?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
      background-size: cover;
      background-position: center;
      color: white;
      text-align: center;
    }

    .cta h2 {
      color: white;
      margin-bottom: 20px;
      text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
    }

    .cta p {
      max-width: 700px;
      margin: 0 auto 30px;
      color: rgba(255, 255, 255, 0.9);
      text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
    }

    .cta-btns {
      display: flex;
      gap: 20px;
      justify-content: center;
    }

    .cta .btn {
      background-color: white;
      color: var(--primary);
    }

    .cta .btn:hover {
      background-color: var(--dark);
      color: white;
    }

    .cta .btn-outline {
      background-color: transparent;
      border-color: white;
      color: white;
    }

    .cta .btn-outline:hover {
      background-color: white;
      color: var(--primary);
    }

    /* ===== Responsive Design ===== */
    @media (max-width: 992px) {
      .content-with-sidebar {
        flex-direction: column;
      }
      
      .main-content, .sidebar {
        width: 100%;
      }
      
      .process-steps::before {
        left: 40px;
      }
      
      .process-step {
        text-align: left !important;
        padding-left: 80px !important;
        padding-right: 20px !important;
      }
      
      .step-number {
        left: 40px;
      }
    }

    @media (max-width: 768px) {
      .hero h1 {
        font-size: 2.2rem;
      }
      
      .hero p {
        font-size: 1.1rem;
      }
      
      .hero-btns {
        flex-direction: column;
        gap: 15px;
      }
      
      .section-title h2 {
        font-size: 2rem;
      }
      
      .cta-btns {
        flex-direction: column;
        gap: 15px;
      }
    }

    @media (max-width: 576px) {
      .hero h1 {
        font-size: 1.8rem;
      }
      
      .section {
        padding: 60px 0;
      }
      
      .tech-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
      }
    }