/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  :root {
    --primary-color: #0066cc;
    --secondary-color: #ff9900;
    --dark-bg: #1a1a2e;
    --light-bg: #f5f5f5;
    --text-dark: #333;
    --text-light: #666;
    --white: #ffffff;
    --border-color: #e0e0e0;
  }
  
  body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    scroll-behavior: smooth;
  }
  
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }
  
  /* Header and Navigation */
  header {
    background-color: var(--dark-bg);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  }
  
  nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--secondary-color);
  }
  
  .nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
  }
  
  .nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
  }
  
  .nav-links a:hover {
    color: var(--secondary-color);
  }
  
  /* Hero Section */
  #hero {
    background: linear-gradient(
      135deg,
      var(--dark-bg) 0%,
      var(--primary-color) 100%
    );
    color: var(--white);
    padding: 150px 20px 100px;
    text-align: center;
    margin-top: 60px;
  }
  
  .hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
  }
  
  .tagline {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    animation: fadeInUp 1s ease 0.2s both;
  }
  
  .subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.4s both;
  }
  
  .cta-button {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--secondary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: fadeInUp 1s ease 0.6s both;
  }
  
  .cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255, 153, 0, 0.4);
  }
  
  /* About Section */
  #about {
    padding: 80px 20px;
    background-color: var(--white);
  }
  
  #about h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
  }
  
  .about-content {
    display: flex;
    gap: 3rem;
    align-items: center;
  }
  
  .about-text {
    flex: 1;
  }
  
  .about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
  }
  
  .about-image {
    flex: 0 0 300px;
  }
  
  .placeholder-image {
    width: 300px;
    height: 300px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  }
  
  .placeholder-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
  }
  
  /* Projects Section */
  #projects {
    padding: 80px 20px;
    background-color: var(--light-bg);
  }
  
  #projects h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
  }
  
  .projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
  }
  
  .project-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  
  .project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
  }
  
  .project-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
  }
  
  .project-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
  }
  
  .project-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
  }
  
  .project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  .tag {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.85rem;
  }
  
  /* Experience Section */
  #experience {
    padding: 80px 20px;
    background-color: var(--white);
  }
  
  #experience h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
  }
  
  .experience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .experience-card {
    background-color: var(--light-bg);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-left: 4px solid var(--primary-color);
  }
  
  .experience-card.work {
    border-left-color: var(--secondary-color);
  }
  
  .experience-card.club {
    border-left-color: #28a745;
  }
  
  .experience-card.achievement {
    border-left-color: #6f42c1;
  }
  
  .experience-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
  }
  
  .experience-header {
    margin-bottom: 1rem;
  }
  
  .experience-header h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.4rem;
  }
  
  .company {
    display: block;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.3rem;
  }
  
  .duration {
    display: block;
    font-size: 0.9rem;
    color: var(--text-light);
    font-style: italic;
  }
  
  .experience-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
  }
  
  .experience-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  /* Skills Section */
  #skills {
    padding: 80px 20px;
    background-color: var(--white);
  }
  
  #skills h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
  }
  
  .skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
  }
  
  .skill-category {
    background-color: var(--light-bg);
    padding: 2rem;
    border-radius: 10px;
    border-left: 4px solid var(--secondary-color);
  }
  
  .skill-category h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
  }
  
  .skill-category ul {
    list-style: none;
  }
  
  .skill-category li {
    padding: 0.5rem 0;
    color: var(--text-light);
    position: relative;
    padding-left: 1.5rem;
  }
  
  .skill-category li::before {
    content: "▹";
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
  }
  
  /* Contact Section */
  #contact {
    padding: 80px 20px;
    background-color: var(--dark-bg);
    color: var(--white);
  }
  
  #contact h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--secondary-color);
  }
  
  .contact-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
  }
  
  .contact-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
  }
  
  .contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
  }
  
  .contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
  }
  
  .contact-item .icon {
    font-size: 1.5rem;
  }
  
  .contact-item a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
  }
  
  .contact-item a:hover {
    color: var(--secondary-color);
  }
  
  /* Footer */
  footer {
    background-color: #0f0f1e;
    color: var(--white);
    text-align: center;
    padding: 2rem;
  }
  
  footer p {
    opacity: 0.7;
  }
  
  /* Animations */
  @keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translateY(30px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  /* Responsive Design */
  @media (max-width: 768px) {
    .nav-links {
      gap: 1rem;
      font-size: 0.9rem;
    }
  
    .hero-content h1 {
      font-size: 2.5rem;
    }
  
    .tagline {
      font-size: 1.2rem;
    }
  
    .subtitle {
      font-size: 1rem;
    }
  
    .about-content {
      flex-direction: column;
    }
  
    .about-image {
      flex: 0 0 auto;
    }
  
    .placeholder-image {
      width: 250px;
      height: 250px;
    }
  
    .placeholder-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
  
    .projects-grid {
      grid-template-columns: 1fr;
    }
  
    .experience-grid {
      grid-template-columns: 1fr;
    }
  
    .skills-grid {
      grid-template-columns: 1fr;
    }
  
    nav {
      padding: 1rem;
    }
  
    .logo {
      font-size: 1.2rem;
    }
  }
  
  @media (max-width: 480px) {
    .hero-content h1 {
      font-size: 2rem;
    }
  
    .nav-links {
      gap: 0.5rem;
      font-size: 0.8rem;
    }
  
    #about h2,
    #projects h2,
    #experience h2,
    #skills h2,
    #contact h2 {
      font-size: 2rem;
    }
  }