:root {
      --primary: #2A2D34;
      --secondary: #01BAEF;
      --accent: #0CBABA;
      --light: #F0F4EF;
      --dark: #1B1D23;
      --card-bg: rgba(26, 32, 44, 0.8);
      --gradient: linear-gradient(135deg, var(--secondary), var(--accent));
    }
    
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    html {
      scroll-behavior: smooth;
      scroll-padding-top: 80px;
    }
    
    body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background-color: var(--dark);
      color: var(--light);
      line-height: 1.6;
      overflow-x: hidden;
    }
    
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    
    /* Navigation */
    header {
      background-color: rgba(27, 29, 35, 0.95);
      backdrop-filter: blur(8px);
      position: fixed;
      width: 100%;
      top: 0;
      z-index: 1000;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
      transition: all 0.3s ease;
    }
    
    header.scrolled {
      padding: 5px 0;
      background-color: rgba(27, 29, 35, 0.98);
    }
    
    nav {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 0;
    }
    
    .logo {
      font-size: 1.8rem;
      font-weight: 700;
      color: var(--light);
      text-decoration: none;
      display: flex;
      align-items: center;
    }
    
    .logo span {
      color: var(--secondary);
    }
    
    .nav-links {
      display: flex;
      gap: 25px;
    }
    
    .nav-links a {
      color: var(--light);
      text-decoration: none;
      font-weight: 500;
      font-size: 1rem;
      position: relative;
      transition: all 0.3s ease;
    }
    
    .nav-links a::after {
      content: '';
      position: absolute;
      width: 0;
      height: 2px;
      background: var(--gradient);
      bottom: -5px;
      left: 50%;
      transform: translateX(-50%);
      transition: width 0.3s ease;
    }
    
    .nav-links a:hover {
      color: var(--secondary);
    }
    
    .nav-links a:hover::after {
      width: 100%;
    }
    
    .hamburger {
      display: none;
      cursor: pointer;
    }
    
    .hamburger div {
      width: 25px;
      height: 3px;
      background-color: var(--light);
      margin: 5px;
      transition: all 0.3s ease;
    }
    
    /* Hero Section */
    #home {
      height: 100vh;
      display: flex;
      align-items: center;
      position: relative;
      overflow: hidden;
    }
    
    .hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: -2;
      background-color: var(--dark);
    }
    
    .particles {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: -1;
    }
    
    .hero-content {
      max-width: 800px;
    }
    
    .hero-content h1 {
      font-size: 3.5rem;
      margin-bottom: 20px;
      line-height: 1.2;
    }
    
    .hero-content p {
      font-size: 1.2rem;
      margin-bottom: 30px;
      opacity: 0.9;
    }
    
    .typewriter {
      color: var(--secondary);
      border-right: 3px solid var(--secondary);
      white-space: nowrap;
      overflow: hidden;
      margin: 0 auto;
      display: inline-block;
    }
    
    .cta-buttons {
      display: flex;
      gap: 15px;
      margin-top: 30px;
    }
    
    .btn {
      padding: 12px 28px;
      border-radius: 30px;
      text-decoration: none;
      font-weight: 600;
      letter-spacing: 1px;
      transition: all 0.3s ease;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    
    .btn-primary {
      background: var(--gradient);
      color: var(--light);
      box-shadow: 0 4px 15px rgba(1, 186, 239, 0.4);
    }
    
    .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 8px 20px rgba(1, 186, 239, 0.6);
    }
    
    .btn-secondary {
      background-color: transparent;
      color: var(--light);
      border: 2px solid var(--secondary);
    }
    
    .btn-secondary:hover {
      background-color: rgba(1, 186, 239, 0.1);
      transform: translateY(-3px);
    }
    
    /* Section Styles */
    section {
      padding: 100px 0;
      position: relative;
    }
    
    section:nth-child(odd) {
      background-color: var(--primary);
    }
    
    .section-title {
      text-align: center;
      margin-bottom: 60px;
    }
    
    .section-title h2 {
      font-size: 2.5rem;
      margin-bottom: 15px;
      position: relative;
      display: inline-block;
    }
    
    .section-title h2::after {
      content: '';
      position: absolute;
      height: 4px;
      width: 70px;
      background: var(--gradient);
      bottom: -10px;
      left: 50%;
      transform: translateX(-50%);
      border-radius: 2px;
    }
    
    .section-title p {
      max-width: 600px;
      margin: 0 auto;
      color: var(--light);
      opacity: 0.8;
    }
    
    /* About Section */
    .about-content {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 40px;
      align-items: center;
    }
    
    .about-image {
      position: relative;
      border-radius: 10px;
      overflow: hidden;
    }
    
    .about-image::before {
      content: '';
      position: absolute;
      top: -20px;
      left: -20px;
      width: calc(100% + 40px);
      height: calc(100% + 40px);
      background: var(--gradient);
      z-index: -1;
      border-radius: 10px;
      opacity: 0.7;
    }
    
    .about-image img {
      width: 100%;
      height: auto;
      border-radius: 10px;
      display: block;
      transition: transform 0.5s ease;
    }
    
    .about-image:hover img {
      transform: scale(1.03);
    }
    
    .about-text h3 {
      font-size: 1.8rem;
      margin-bottom: 20px;
      color: var(--secondary);
    }
    
    .about-text p {
      margin-bottom: 20px;
    }
    
    .skills {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 25px;
    }
    
    .skill-tag {
      background: rgba(1, 186, 239, 0.15);
      color: var(--secondary);
      padding: 6px 12px;
      border-radius: 20px;
      font-size: 0.9rem;
      display: inline-flex;
      align-items: center;
      gap: 5px;
    }
    
    /* Experience Section */
    .timeline-container {
      position: relative;
      max-width: 800px;
      margin: 0 auto;
    }
    
    .timeline-container::after {
      content: '';
      position: absolute;
      width: 4px;
      background: var(--gradient);
      top: 0;
      bottom: 0;
      left: 50%;
      margin-left: -2px;
      border-radius: 2px;
    }
    
    .timeline-item {
      position: relative;
      width: 50%;
      padding: 20px 40px;
      box-sizing: border-box;
      margin-bottom: 30px;
    }
    
    .timeline-item:nth-child(odd) {
      left: 0;
      text-align: right;
    }
    
    .timeline-item:nth-child(even) {
      left: 50%;
    }
    
    .timeline-item::after {
      content: '';
      position: absolute;
      width: 20px;
      height: 20px;
      background: var(--secondary);
      border-radius: 50%;
      top: 0;
      z-index: 1;
    }
    
    .timeline-item:nth-child(odd)::after {
      right: -10px;
    }
    
    .timeline-item:nth-child(even)::after {
      left: -10px;
    }
    
    .timeline-content {
      padding: 20px;
      background: var(--card-bg);
      border-radius: 10px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
      border-left: 3px solid var(--secondary);
      transition: all 0.3s ease;
    }
    
    .timeline-item:nth-child(odd) .timeline-content {
      border-left: none;
      border-right: 3px solid var(--secondary);
    }
    
    .timeline-content:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    }
    
    .timeline-date {
      color: var(--secondary);
      font-weight: 600;
      display: block;
      margin-bottom: 10px;
    }
    
    .timeline-title {
      margin-bottom: 10px;
      font-size: 1.2rem;
    }
    
    /* Certifications Section */
    .certifications-container {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 25px;
    }
    
    .certification-card {
      background: var(--card-bg);
      border-radius: 10px;
      padding: 25px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
      transition: all 0.3s ease;
      border-bottom: 3px solid transparent;
    }
    
    .certification-card:hover {
      transform: translateY(-8px);
      border-bottom: 3px solid var(--secondary);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    }
    
    .certification-icon {
      font-size: 2rem;
      color: var(--secondary);
      margin-bottom: 15px;
    }
    
    .certification-card h3 {
      font-size: 1.3rem;
      margin-bottom: 10px;
    }
    
    .certification-card p {
      color: var(--light);
      opacity: 0.8;
    }
    
    /* Projects Section */
    .projects-container {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
      gap: 30px;
    }
    
    .project-card {
      border-radius: 10px;
      overflow: hidden;
      background: var(--card-bg);
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
      transition: all 0.3s ease;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    
    .project-card:hover {
      transform: translateY(-10px);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
    }
    
    .project-image {
      height: 200px;
      position: relative;
      overflow: hidden;
      background: var(--gradient);
    }
    
    .project-image::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: var(--gradient);
      opacity: 0.3;
      transition: opacity 0.3s ease;
    }
    
    .project-card:hover .project-image::before {
      opacity: 0.1;
    }
    
    .project-icon {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      font-size: 4rem;
      color: var(--light);
    }
    
    .project-details {
      padding: 25px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    
    .project-title {
      font-size: 1.4rem;
      margin-bottom: 12px;
      color: var(--light);
    }
    
    .project-description {
      margin-bottom: 15px;
      color: var(--light);
      opacity: 0.8;
      flex-grow: 1;
    }
    
    .project-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: auto;
    }
    
    .project-tag {
      background: rgba(1, 186, 239, 0.15);
      color: var(--secondary);
      padding: 4px 10px;
      border-radius: 15px;
      font-size: 0.8rem;
    }
    
    .project-links {
      display: flex;
      justify-content: space-between;
      margin-top: 20px;
    }
    
    .project-link {
      padding: 8px 15px;
      background: transparent;
      color: var(--secondary);
      border-radius: 5px;
      text-decoration: none;
      font-weight: 500;
      border: 1px solid var(--secondary);
      transition: all 0.3s ease;
      display: inline-flex;
      align-items: center;
      gap: 5px;
    }
    
    .project-link:hover {
      background: var(--secondary);
      color: var(--dark);
    }
    
    /* Contact Section */
    #contact {
      position: relative;
    }
    
    .contact-container {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 40px;
    }
    
    .contact-form {
      background: var(--card-bg);
      padding: 30px;
      border-radius: 10px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    }
    
    .form-group {
      margin-bottom: 20px;
    }
    
    .form-label {
      display: block;
      margin-bottom: 8px;
      font-weight: 500;
    }
    
    .form-control {
      width: 100%;
      padding: 12px 15px;
      border: 1px solid rgba(240, 244, 239, 0.1);
      background: rgba(26, 32, 44, 0.8);
      border-radius: 5px;
      color: var(--light);
      font-size: 1rem;
      transition: all 0.3s ease;
    }
    
    .form-control:focus {
      outline: none;
      border-color: var(--secondary);
      box-shadow: 0 0 0 3px rgba(1, 186, 239, 0.2);
    }
    
    textarea.form-control {
      min-height: 120px;
      resize: vertical;
    }
    
    .contact-info {
      padding: 30px;
      background-color: var(--card-bg);
      border-radius: 10px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    }
    
    .contact-info-title {
      font-size: 1.5rem;
      margin-bottom: 20px;
      color: var(--secondary);
    }
    
    .contact-info-item {
      display: flex;
      align-items: flex-start;
      margin-bottom: 20px;
    }
    
    .contact-icon {
      min-width: 40px;
      height: 40px;
      border-radius: 50%;
      background: rgba(1, 186, 239, 0.15);
      display: flex;
      justify-content: center;
      align-items: center;
      color: var(--secondary);
      margin-right: 15px;
      font-size: 1.2rem;
    }
    
    .contact-text h4 {
      margin-bottom: 5px;
    }
    
    .social-links {
      display: flex;
      gap: 15px;
      margin-top: 30px;
    }
    
    .social-link {
      width: 40px;
      height: 40px;
      display: flex;
      justify-content: center;
      align-items: center;
      border-radius: 50%;
      background: rgba(1, 186, 239, 0.15);
      color: var(--secondary);
      font-size: 1.2rem;
      transition: all 0.3s ease;
    }
    
    .social-link:hover {
      background: var(--secondary);
      color: var(--dark);
      transform: translateY(-5px);
    }
    
    /* Footer */
    footer {
      background-color: var(--dark);
      padding: 40px 0 20px;
      position: relative;
      z-index: 1;
    }
    
    .footer-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      margin-bottom: 30px;
    }
    
    .footer-logo {
      font-size: 1.8rem;
      font-weight: 700;
      color: var(--light);
      text-decoration: none;
    }
    
    .footer-logo span {
      color: var(--secondary);
    }
    
    .footer-links {
      display: flex;
      gap: 20px;
    }
    
    .footer-links a {
      color: var(--light);
      text-decoration: none;
      transition: color 0.3s ease;
    }
    
    .footer-links a:hover {
      color: var(--secondary);
    }
    
    .footer-bottom {
      text-align: center;
      padding-top: 20px;
      border-top: 1px solid rgba(240, 244, 239, 0.1);
    }
    
    .copyright {
      color: var(--light);
      opacity: 0.7;
      font-size: 0.9rem;
    }
    
    /* Back to Top Button */
    .back-to-top {
      position: fixed;
      bottom: 30px;
      right: 30px;
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--gradient);
      display: flex;
      justify-content: center;
      align-items: center;
      color: var(--light);
      font-size: 1.2rem;
      cursor: pointer;
      opacity: 0;
      transform: translateY(20px);
      transition: all 0.3s ease;
      z-index: 100;
      box-shadow: 0 5px 15px rgba(1, 186, 239, 0.4);
    }
    
    .back-to-top.active {
      opacity: 1;
      transform: translateY(0);
    }
    
    .back-to-top:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 25px rgba(1, 186, 239, 0.6);
    }
    
    /* Animation Classes */
    .reveal {
      position: relative;
      opacity: 0;
      transform: translateY(30px);
      transition: all 1s ease;
    }
    
    .reveal.active {
      opacity: 1;
      transform: translateY(0);
    }
    
    /* Responsive Design */
    @media (max-width: 992px) {
      .hero-content h1 {
        font-size: 3rem;
      }
      
      .timeline-container::after {
        left: 31px;
      }
      
      .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 0;
      }
      
      .timeline-item:nth-child(odd) {
        text-align: left;
      }
      
      .timeline-item:nth-child(even) {
        left: 0;
      }
      
      .timeline-item:nth-child(odd)::after {
        left: 21px;
        right: auto;
      }
      
      .timeline-item:nth-child(even)::after {
        left: 21px;
      }
      
      .timeline-item:nth-child(odd) .timeline-content {
        border-right: none;
        border-left: 3px solid var(--secondary);
      }
    }
    
    @media (max-width: 768px) {
      .hero-content h1 {
        font-size: 2.5rem;
      }
      
      .nav-links {
        position: absolute;
        right: 0;
        top: 8vh;
        height: 92vh;
        background-color: var(--dark);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: space-around;
        width: 100%;
        transform: translateX(100%);
        transition: transform 0.5s ease-in;
        z-index: 100;
      }
      
      .nav-links.active {
        transform: translateX(0%);
      }
      
      .hamburger {
        display: block;
      }
      
      .hamburger.active div:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
      }
      
      .hamburger.active div:nth-child(2) {
        opacity: 0;
      }
      
      .hamburger.active div:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
      }
      
      .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
      }
      
      .footer-links {
        justify-content: center;
      }
    }
    
    @media (max-width: 576px) {
      section {
        padding: 60px 0;
      }
      
      .hero-content h1 {
        font-size: 2rem;
      }
      
      .hero-content p {
        font-size: 1rem;
      }
      
      .section-title h2 {
        font-size: 2rem;
      }
      
      .cta-buttons {
        flex-direction: column;
        gap: 10px;
      }
      
      .btn {
        width: 100%;
        justify-content: center;
      }
    }