* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Inter', sans-serif;
    background-color: #f9fbfc;
    color: #1f2937;
    line-height: 1.8;
    scroll-behavior: smooth;
  }
  
  h1, h2, h3 {
    font-family: 'Poppins', sans-serif;
  }
  
  a {
    text-decoration: none;
    color: inherit;
  }
  
  .container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
  }
  
  .header {
    background-color: #1e293b;
    color: white;
    padding: 18px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  }
  
  .nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .logo {
    font-size: 1.9rem;
    font-weight: 800;
  }
  
  .logo span {
    color: #3b82f6;
  }
  
  .nav {
    display: flex;
    align-items: center;
    gap: 35px;
  }
  
  .nav-list {
    list-style: none;
    display: flex;
    gap: 25px;
  }
  
  .nav-list a {
    color: white;
    font-weight: 500;
    position: relative;
    transition: color 0.3s;
  }
  
  .nav-list a::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0%;
    height: 2px;
    background-color: #3b82f6;
    transition: width 0.3s ease;
  }
  
  .nav-list a:hover::after {
    width: 100%;
  }
  
  .btn {
    padding: 12px 28px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
  }
  
  .btn-primary {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #fff;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
  }
  
  .btn-primary:hover {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    transform: translateY(-2px) scale(1.02);
  }
  
  .btn-secondary {
    background-color: transparent;
    color: #2563eb;
    border: 2px solid #2563eb;
  }
  
  .btn-secondary:hover {
    background-color: #e0ecff;
    color: #1e40af;
  }
  
  .hero {
    background: linear-gradient(135deg, #0d9488, #0891b2);
    color: white;
    text-align: center;
    padding: 120px 20px 100px;
  }
  
  .hero h1 {
    font-size: 3.2rem;
    margin-bottom: 20px;
    line-height: 1.3;
  }
  
  .hero p {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto 30px;
    color: #e0fdfd;
  }
  
  .section {
    padding: 90px 20px;
  }
  
  .section h2 {
    text-align: center;
    font-size: 2.4rem;
    margin-bottom: 35px;
    color: #1e293b;
  }
  
  .section p {
    text-align: center;
    color: #4a5568;
    max-width: 850px;
    margin: 0 auto;
    font-size: 1.1rem;
  }
  
  .service-grid {
    margin-top: 50px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
  }
  
  .service-card {
    background: white;
    padding: 36px;
    border-radius: 16px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border-top: 4px solid transparent;
  }
  
  .service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
    border-top: 4px solid #2563eb;
  }
  
  .service-card h3 {
    color: #2563eb;
    margin-bottom: 14px;
    font-size: 1.35rem;
  }
  
  .service-card p {
    color: #4b5563;
    font-size: 1rem;
    line-height: 1.7;
  }
  
  .contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 600px;
    margin: 40px auto 0;
  }
  
  .contact-form input,
  .contact-form textarea {
    padding: 14px 16px;
    border-radius: 8px;
    border: 1px solid #cbd5e1;
    font-size: 1rem;
    transition: border 0.3s;
  }
  
  .contact-form input:focus,
  .contact-form textarea:focus {
    border-color: #2563eb;
    outline: none;
  }
  
  .contact-form button {
    align-self: center;
  }
  
  .footer {
    background-color: #1e293b;
    color: white;
    text-align: center;
    padding: 35px 0;
    font-size: 0.9rem;
  }
  
  @media (max-width: 768px) {
    .nav-container {
      flex-direction: column;
      gap: 15px;
    }
  
    .nav {
      flex-direction: column;
      gap: 20px;
    }
  
    .nav-list {
      flex-direction: column;
      gap: 15px;
    }
  
    .hero h1 {
      font-size: 2rem;
    }
  
    .hero p {
      font-size: 1rem;
    }
  
    .btn {
      width: 100%;
      font-size: 0.95rem;
    }
  
    .section {
      padding: 60px 15px;
    }
  
    .section h2 {
      font-size: 1.8rem;
    }
  
    .section p {
      font-size: 1rem;
    }
  
    .service-grid {
      grid-template-columns: 1fr;
    }
  
    .service-card {
      padding: 28px;
    }
  
    .logo {
      font-size: 1.5rem;
    }
  }