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

    :root {
      --primary-bg: #0a0a0a;
      --secondary-bg: #1a1a1a;
      --card-bg: #252525;
      --accent-color: #00d4aa;
      --accent-secondary: #ff6b6b;
      --text-primary: #ffffff;
      --text-secondary: #b8b8b8;
      --text-muted: #888888;
      --border-color: #333333;
      --gradient: linear-gradient(135deg, #00d4aa 0%, #00a085 100%);
      --shadow: 0 10px 30px rgba(0, 212, 170, 0.1);
      --shadow-hover: 0 15px 40px rgba(0, 212, 170, 0.2);
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
      background: var(--primary-bg);
      color: var(--text-primary);
      line-height: 1.6;
      overflow-x: hidden;
    }

    /* Navigation */
    .nav {
      position: fixed;
      top: 0;
      width: 100%;
      background: rgba(26, 26, 26, 0.95);
      backdrop-filter: blur(10px);
      z-index: 1000;
      padding: 1rem 0;
      transition: all 0.3s ease;
    }

    .nav-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .logo {
      font-size: 1.5rem;
      font-weight: 700;
      background: var(--gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .nav-links {
      display: flex;
      list-style: none;
      gap: 2rem;
    }

    .nav-links a {
      color: var(--text-secondary);
      text-decoration: none;
      font-weight: 500;
      transition: all 0.3s ease;
      position: relative;
    }

    .nav-links a:hover {
      color: var(--accent-color);
    }

    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -5px;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--gradient);
      transition: width 0.3s ease;
    }

    .nav-links a:hover::after {
      width: 100%;
    }

    .mobile-menu {
      display: none;
      flex-direction: column;
      cursor: pointer;
    }

    .mobile-menu span {
      width: 25px;
      height: 3px;
      background: var(--accent-color);
      margin: 3px 0;
      transition: 0.3s;
    }

    /* Hero Section */
    .hero {
      height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      background: radial-gradient(ellipse at center, rgba(0, 212, 170, 0.1) 0%, transparent 70%);
      position: relative;
      overflow: hidden;
    }

    .hero::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23333" stroke-width="0.5" opacity="0.3"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
      opacity: 0.3;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 800px;
      padding: 0 2rem;
    }

    .hero h1 {
      font-size: clamp(2.5rem, 5vw, 4rem);
      font-weight: 700;
      margin-bottom: 1rem;
      background: var(--gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero .subtitle {
      font-size: clamp(1.2rem, 2.5vw, 1.5rem);
      color: var(--text-secondary);
      margin-bottom: 2rem;
      font-weight: 300;
    }

    .cta-buttons {
      display: flex;
      gap: 1rem;
      justify-content: center;
      flex-wrap: wrap;
    }

    .btn {
      padding: 1rem 2rem;
      border: none;
      border-radius: 50px;
      font-weight: 600;
      text-decoration: none;
      transition: all 0.3s ease;
      cursor: pointer;
      position: relative;
      overflow: hidden;
    }

    .btn-primary {
      background: var(--gradient);
      color: white;
      box-shadow: var(--shadow);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
    }

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

    .btn-secondary:hover {
      background: var(--accent-color);
      color: white;
      transform: translateY(-2px);
    }

    /* Container */
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 2rem;
    }

    /* Section Styling */
    .section {
      padding: 5rem 0;
      position: relative;
    }

    .section-title {
      text-align: center;
      margin-bottom: 3rem;
    }

    .section-title h2 {
      font-size: clamp(2rem, 4vw, 3rem);
      font-weight: 700;
      margin-bottom: 1rem;
      background: var(--gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .section-title p {
      color: var(--text-secondary);
      font-size: 1.1rem;
      max-width: 600px;
      margin: 0 auto;
    }

    /* About Section */
    .about-content {
      display: grid;
      grid-template-columns: 1fr 2fr;
      gap: 4rem;
      align-items: center;
    }

    .about-image {
      position: relative;
    }

    .about-image::before {
      content: '';
      position: absolute;
      top: 20px;
      left: 20px;
      right: -20px;
      bottom: -20px;
      background: var(--gradient);
      border-radius: 20px;
      opacity: 0.1;
    }

    .profile-picture {
      width: 100%;
      height: 400px;
      border-radius: 20px;
      position: relative;
      overflow: hidden;
      border: 2px solid var(--border-color);
      transition: all 0.3s ease;
    }

    .profile-picture:hover {
      border-color: var(--accent-color);
      transform: scale(1.02);
    }

    .profile-picture img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: all 0.3s ease;
    }

    .profile-overlay {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: rgba(0, 0, 0, 0.7);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      opacity: 0;
      transition: all 0.3s ease;
      color: var(--accent-color);
    }

    .profile-picture:hover .profile-overlay {
      opacity: 1;
    }

    .profile-overlay i {
      font-size: 2rem;
      margin-bottom: 0.5rem;
    }

    .profile-overlay span {
      font-size: 1rem;
      font-weight: 500;
    }

    .about-text {
      font-size: 1.1rem;
      color: var(--text-secondary);
      line-height: 1.8;
    }

    .about-text p {
      margin-bottom: 1.5rem;
    }

    .about-text .highlight {
      color: var(--accent-color);
      font-weight: 600;
    }

    /* Experience & Projects Cards */
    .cards-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
      gap: 2rem;
      margin-top: 2rem;
    }

    .card {
      background: var(--card-bg);
      border-radius: 15px;
      padding: 2rem;
      border: 1px solid var(--border-color);
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }

    .card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: var(--gradient);
      transform: scaleX(0);
      transition: transform 0.3s ease;
    }

    .card:hover {
      transform: translateY(-5px);
      border-color: var(--accent-color);
      box-shadow: var(--shadow);
    }

    .card:hover::before {
      transform: scaleX(1);
    }

    .card-header {
      display: flex;
      align-items: center;
      gap: 1rem;
      margin-bottom: 1rem;
    }

    .card-icon {
      width: 50px;
      height: 50px;
      background: var(--gradient);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-size: 1.5rem;
    }

    .card-title {
      color: var(--text-primary);
      font-size: 1.3rem;
      font-weight: 600;
      line-height: 1.2;
    }

    .card-subtitle {
      color: var(--accent-color);
      font-size: 0.9rem;
      font-weight: 500;
      margin-bottom: 1rem;
    }

    .card-description {
      color: var(--text-secondary);
      margin-bottom: 1.5rem;
      line-height: 1.6;
    }

    .card-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
    }

    .tag {
      padding: 0.3rem 0.8rem;
      background: rgba(0, 212, 170, 0.1);
      color: var(--accent-color);
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 500;
      border: 1px solid rgba(0, 212, 170, 0.2);
    }

    /* Skills Section */
    .skills-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 2rem;
      margin-top: 2rem;
    }

    .skill-category {
      background: var(--card-bg);
      border-radius: 15px;
      padding: 2rem;
      border: 1px solid var(--border-color);
      transition: all 0.3s ease;
    }

    .skill-category:hover {
      border-color: var(--accent-color);
      transform: translateY(-3px);
    }

    .skill-category h3 {
      color: var(--accent-color);
      font-size: 1.2rem;
      margin-bottom: 1rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .skill-list {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
    }

    .skill-item {
      padding: 0.4rem 1rem;
      background: var(--secondary-bg);
      color: var(--text-secondary);
      border-radius: 25px;
      font-size: 0.9rem;
      border: 1px solid var(--border-color);
      transition: all 0.3s ease;
    }

    .skill-item:hover {
      background: var(--accent-color);
      color: white;
      transform: scale(1.05);
    }

    /* Education & Certificates */
    .timeline {
      position: relative;
      margin: 2rem 0;
    }

    .timeline::before {
      content: '';
      position: absolute;
      left: 2rem;
      top: 0;
      bottom: 0;
      width: 2px;
      background: var(--gradient);
    }

    .timeline-item {
      position: relative;
      margin-bottom: 2rem;
      padding-left: 5rem;
    }

    .timeline-item::before {
      content: '';
      position: absolute;
      left: 1.2rem;
      top: 0.5rem;
      width: 1.6rem;
      height: 1.6rem;
      background: var(--accent-color);
      border-radius: 50%;
      border: 4px solid var(--primary-bg);
    }

    .timeline-content {
      background: var(--card-bg);
      padding: 1.5rem;
      border-radius: 10px;
      border: 1px solid var(--border-color);
      transition: all 0.3s ease;
    }

    .timeline-content:hover {
      border-color: var(--accent-color);
      transform: translateX(10px);
    }

    .timeline-title {
      color: var(--text-primary);
      font-weight: 600;
      margin-bottom: 0.5rem;
    }

    .timeline-subtitle {
      color: var(--accent-color);
      font-size: 0.9rem;
      margin-bottom: 0.5rem;
    }

    .timeline-date {
      color: var(--text-muted);
      font-size: 0.8rem;
    }

    /* Contact Section */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      margin-top: 2rem;
    }

    .contact-info {
      display: flex;
      flex-direction: column;
      gap: 1.5rem;
    }

    .contact-item {
      display: flex;
      align-items: center;
      gap: 1rem;
      padding: 1rem;
      background: var(--card-bg);
      border-radius: 10px;
      border: 1px solid var(--border-color);
      transition: all 0.3s ease;
    }

    .contact-item:hover {
      border-color: var(--accent-color);
      transform: translateX(5px);
    }

    .contact-icon {
      width: 40px;
      height: 40px;
      background: var(--gradient);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
    }

    .contact-item a {
      color: var(--text-secondary);
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .contact-item:hover a {
      color: var(--accent-color);
    }

    /* Footer */
    .footer {
      background: var(--secondary-bg);
      padding: 2rem 0;
      text-align: center;
      border-top: 1px solid var(--border-color);
    }

    .footer p {
      color: var(--text-muted);
      font-size: 0.9rem;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }

      .mobile-menu {
        display: flex;
      }

      .hero h1 {
        font-size: 2.5rem;
      }

      .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
      }

      .cards-grid {
        grid-template-columns: 1fr;
      }

      .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
      }

      .cta-buttons {
        flex-direction: column;
        align-items: center;
      }

      .timeline::before {
        left: 1rem;
      }

      .timeline-item {
        padding-left: 3rem;
      }

      .timeline-item::before {
        left: 0.2rem;
      }

      .visit-counter {
        bottom: 1rem;
        right: 1rem;
        padding: 0.6rem 1rem;
        font-size: 0.8rem;
      }

      .gallery-item {
        flex: 0 0 250px;
        height: 170px;
      }
    }

    @media (max-width: 480px) {
      .container {
        padding: 0 1rem;
      }

      .card {
        padding: 1.5rem;
      }

      .section {
        padding: 3rem 0;
      }

      .gallery-item {
        flex: 0 0 200px;
        height: 140px;
      }

      .gallery-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
      }
    }

    /* Animations */
    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(30px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .fade-in-up {
      animation: fadeInUp 0.6s ease-out;
    }

    /* Scroll indicator */
    .scroll-indicator {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: rgba(0, 212, 170, 0.2);
      z-index: 9999;
    }

    .scroll-progress {
      height: 100%;
      background: var(--gradient);
      width: 0%;
      transition: width 0.1s ease;
    }

    /* Visit Counter */
    .visit-counter {
      position: fixed;
      bottom: 2rem;
      right: 2rem;
      background: var(--card-bg);
      color: var(--text-secondary);
      padding: 0.8rem 1.2rem;
      border-radius: 25px;
      border: 1px solid var(--border-color);
      font-size: 0.9rem;
      font-weight: 500;
      z-index: 1000;
      backdrop-filter: blur(10px);
      box-shadow: var(--shadow);
      display: flex;
      align-items: center;
      gap: 0.5rem;
      transition: all 0.3s ease;
    }

    .visit-counter:hover {
      border-color: var(--accent-color);
      transform: translateY(-2px);
    }

    .visit-counter i {
      color: var(--accent-color);
    }

    /* Gallery Section */
    .gallery-container {
      position: relative;
      margin-top: 2rem;
    }

    .gallery-scroll {
      display: flex;
      gap: 1.5rem;
      overflow-x: auto;
      scroll-behavior: smooth;
      padding: 1rem 0;
      scrollbar-width: none; /* Firefox */
      -ms-overflow-style: none; /* IE and Edge */
    }

    .gallery-scroll::-webkit-scrollbar {
      display: none; /* Chrome, Safari, Opera */
    }

    .gallery-item {
      flex: 0 0 300px;
      height: 200px;
      position: relative;
      border-radius: 15px;
      overflow: hidden;
      border: 2px solid var(--border-color);
      transition: all 0.3s ease;
      cursor: pointer;
    }

    .gallery-item:hover {
      border-color: var(--accent-color);
      transform: translateY(-5px);
      box-shadow: var(--shadow);
    }

    .gallery-item img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: all 0.3s ease;
    }

    .gallery-item:hover img {
      transform: scale(1.1);
    }

    .gallery-overlay {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
      color: white;
      padding: 2rem 1rem 1rem;
      transform: translateY(100%);
      transition: all 0.3s ease;
    }

    .gallery-item:hover .gallery-overlay {
      transform: translateY(0);
    }

    .gallery-overlay h4 {
      font-size: 1.1rem;
      font-weight: 600;
      margin-bottom: 0.5rem;
      color: var(--accent-color);
    }

    .gallery-overlay p {
      font-size: 0.9rem;
      color: var(--text-secondary);
      margin: 0;
    }

    .gallery-nav {
      display: flex;
      justify-content: center;
      gap: 1rem;
      margin-top: 2rem;
    }

    .gallery-btn {
      width: 50px;
      height: 50px;
      border: none;
      border-radius: 50%;
      background: var(--card-bg);
      color: var(--accent-color);
      border: 2px solid var(--border-color);
      cursor: pointer;
      transition: all 0.3s ease;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
    }

    .gallery-btn:hover:not(:disabled) {
      background: var(--accent-color);
      color: white;
      border-color: var(--accent-color);
      transform: scale(1.1);
    }

    .gallery-btn:disabled {
      opacity: 0.5;
      cursor: not-allowed;
    }