* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
    outline: none;
    scroll-behavior: smooth;
  }
  
  :root {
    --bg-color: #191f36;
    --snd-bg-color: #262b40;
    --text-color: #fff;
    --main-color: #5982f4;
  }
  
  html {
    font-size: 62.5%;
    overflow-x: hidden;
  }
  
  body {
    background: var(--bg-color);
    color: var(--text-color);
  }
  
  section {
    min-height: 100vh;
    padding: 10rem 9% 2rem;
  }
  
  .header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 9%;
    background: var(--bg-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
  }
  
  .logo {
    font-size: 2.5rem;
    color: var(--text-color);
    font-weight: 700;
    cursor: default;
  }
  
  .navbar a {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-left: 4rem;
    font-weight: 700;
  }
  
  .navbar a:hover,
  .navbar a.active {
    color: var(--main-color);
  }
  
  #menu-icon {
    font-size: 3.6rem;
    color: var(--text-color);
    display: none;
  }
  
  /* Home Section */
  .home {
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  .home-content h3 {
    font-size: 3.2rem;
    font-weight: 700;
  }
  
  .home-content h3:nth-of-type(2) {
    margin-bottom: 2rem;
  }
  
  span {
    color: var(--main-color);
  }
  
  .home-content h1 {
    font-size: 5.6rem;
    font-weight: 700;
    line-height: 1.3;
  }
  
  .home-content p {
    font-size: 1.8rem;
  }
  
  .social-media a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 4rem;
    height: 4rem;
    background: transparent;
    border: 0.2rem solid var(--main-color);
    border-radius: 50%;
    font-size: 2rem;
    color: var(--main-color);
    margin: 3rem 1.5rem 3rem 0;
    transition: 0.3s ease;
  }
  
  .social-media a:hover {
    background: var(--main-color);
    color: var(--snd-bg-color);
    box-shadow: 0 0 1rem var(--main-color);
  }
  
  .btn {
    display: inline-block;
    padding: 1rem 2.8rem;
    background: var(--main-color);
    border-radius: 4rem;
    box-shadow: 0 0 1rem var(--main-color);
    font-size: 1.4rem;
    color: var(--bg-color);
    letter-spacing: 0.1rem;
    font-weight: 600;
    transition: 0.3s ease;
  }
  
  .btn:hover {
    box-shadow: none;
  }
  
  /* About Section */
  .about {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    background: var(--snd-bg-color);
    text-align: center;
    flex-direction: column;
  }
  
  .heading {
    text-align: center;
    font-size: 6rem;
    margin-bottom: 4rem;
  }
  
  .about h3 {
    font-size: 4rem;
  }
  
  .about p {
    font-size: 2rem;
    margin: 2rem 0 3rem;
    line-height: 1.6;
  }
  
  /* Projects */
  .projects .heading {
    margin-bottom: 5rem;
  }
  
  .services-container {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    align-items: center;
    justify-content: center;
  }
  
  .services-box {
    flex: 1 1 30rem;
    background: var(--snd-bg-color);
    padding: 3rem 2rem 4rem;
    border-radius: 2rem;
    text-align: center;
    border: 0.2rem solid var(--bg-color);
    transition: 0.3s ease;
  }
  
  .services-box:hover {
    border-color: var(--main-color);
    transform: scale(1.02);
  }
  
  .services-box i {
    font-size: 7rem;
    color: var(--main-color);
    margin-bottom: 1.5rem;
  }
  
  .services-box h3 {
    font-size: 2.6rem;
  }
  
  .services-box p {
    font-size: 1.6rem;
    margin: 1rem 0 3rem;
  }
  
  /* Certifications Section */
  .certifications {
    padding: 10rem 9% 2rem;
    background: var(--snd-bg-color);
  }
  
  .certifications .heading {
    text-align: center;
    font-size: 6rem;
    margin-bottom: 4rem;
  }
  
  .cert-container {
    display: flex;
    flex-wrap: wrap;
    gap: 3rem;
    justify-content: center;
  }
  
  .cert-box {
    background: var(--bg-color);
    border: 0.2rem solid var(--bg-color);
    border-radius: 2rem;
    padding: 3rem 2rem;
    text-align: center;
    width: 300px;
    transition: 0.3s ease;
  }
  
  .cert-box:hover {
    border-color: var(--main-color);
    transform: scale(1.02);
  }
  
  .cert-box img {
    width: 100px;
    height: auto;
    margin-bottom: 1rem;
  }
  
  .cert-box h3 {
    font-size: 2rem;
    margin: 1rem 0 0.5rem;
    color: var(--text-color);
  }
  
  .cert-box p {
    font-size: 1.4rem;
    color: var(--text-color);
    margin-bottom: 1.5rem;
  }
  
  /* Contact */
  .contact h2 {
    margin-bottom: 3rem;
  }
  
  .contact form {
    max-width: 70rem;
    margin: 1rem auto;
    text-align: center;
    margin-bottom: 3rem;
  }
  
  .contact .input-box {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
  }
  
  .contact input,
  .contact textarea {
    width: 100%;
    padding: 1.5rem;
    font-size: 1.6rem;
    background: var(--snd-bg-color);
    color: var(--text-color);
    border-radius: 0.8rem;
    margin: 0.7rem;
  }
  
  .contact input {
    width: 49%;
  }
  
  .contact textarea {
    resize: none;
  }
  
  .contact .btn {
    margin-top: 2rem;
    cursor: pointer;
  }
  
  /* Footer */
  .footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    padding: 2rem 9%;
    background: var(--snd-bg-color);
  }
  
  .footer-text {
    font-size: 1.6rem;
  }
  
  .footer-iconTop {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 0.8rem 1rem;
    background: var(--main-color);
    border-radius: 8rem;
    transition: 0.3s ease;
  }
  
  .footer-iconTop:hover {
    box-shadow: 0 0 1rem var(--main-color);
  }
  
  .footer-iconTop i {
    font-size: 2.4rem;
    color: var(--snd-bg-color);
  }
  
  /* Responsive */
  @media (max-width: 1200px) {
    html {
      font-size: 55%;
    }
  }
  
  @media (max-width: 991px) {
    .header {
      padding: 2rem 3%;
    }
  
    section {
      padding: 10rem 3%;
    }
  
    .services {
      padding: 7rem;
    }
  
    .portfolio {
      padding-bottom: 7rem;
    }
  }
  
  @media (max-width: 768px) {
    .home,
    .about,
    .services-container,
    .cert-container {
      flex-direction: column;
      text-align: center;
    }
  
    .contact input {
      width: 100%;
    }
  
    .home-content h1 {
      font-size: 4rem;
    }
  
    .home-content h3 {
      font-size: 2.5rem;
    }
  
    .about h3 {
      font-size: 3.5rem;
    }
  
    .about p {
      font-size: 2rem;
    }
  }
  
  @media (max-width: 450px) {
    html {
      font-size: 50%;
    }
  
    .navbar a {
      margin-left: 2rem;
      font-size: 1.2rem;
    }
  
    .footer {
      flex-direction: column;
      gap: 1.5rem;
      text-align: center;
    }
  
    .footer-iconTop {
      margin-top: 1rem;
    }
  
    .btn {
      padding: 1rem 2rem;
      font-size: 1.4rem;
    }
  }