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

  :root {
    --bg-primary: #000000;
    --bg-secondary: #1a1a1a;
    --bg-card: #2a2a2a;
    --bg-card-hover: #3a3a3a;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #808080;
    --accent: #ffffff;
    --accent-hover: #cccccc;
    --accent-light: rgba(255, 255, 255, 0.1);
    --border: #333333;
    --border-hover: #555555;
    --sidebar-width: 340px;
    --gradient-primary: #333;
    --gradient-secondary: #444;
    --shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 20px 40px -10px rgba(0, 0, 0, 0.3);
  }

  body {
    font-family: "Sora", sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    font-weight: 400;
  }

  /* Custom scrollbar */
  ::-webkit-scrollbar {
    width: 6px;
  }

  ::-webkit-scrollbar-track {
    background: var(--bg-primary);
  }

  ::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 3px;
  }

  /* Sidebar */
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-secondary);
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--border);
    z-index: 1000;
    overflow-y: auto;
    transform: translateX(0);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .sidebar.active {
    transform: translateX(0);
  }

  .sidebar-header {
    padding: 2.5rem 2rem;
    border-bottom: 1px solid var(--border);
    text-align: center;
  }

  .profile-img {
    width: 100px;
    height: 100px;
    border-radius: 24px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2.5rem;
    font-weight: 700;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
  }

  .profile-img::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
      45deg,
      transparent 30%,
      rgba(255, 255, 255, 0.1) 50%,
      transparent 70%
    );
    transform: translateX(-100%);
    transition: transform 0.6s;
  }

  .profile-img:hover::before {
    transform: translateX(100%);
  }

  .profile-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
  }

  .sidebar h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
    letter-spacing: -0.025em;
  }

  .sidebar-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 400;
    letter-spacing: 0.5px;
  }

  .nav-section {
    padding: 2rem;
  }

  .nav-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-weight: 600;
  }

  .nav-item {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 16px;
    margin-bottom: 0.75rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1.05rem;
    font-weight: 500;
    position: relative;
    overflow: hidden;
  }

  .nav-item::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 0;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
    opacity: 0.1;
  }

  .nav-item:hover::before,
  .nav-item.active::before {
    width: 100%;
  }

  .nav-item:hover,
  .nav-item.active {
    background: var(--bg-card);
    color: var(--text-primary);
    transform: translateX(8px);
    border: 1px solid var(--border-hover);
  }

  .tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-bottom: 1rem;
  }

  .tech-item {
    background: var(--bg-card);
    padding: 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    text-align: center;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    font-weight: 500;
    transition: all 0.3s ease;
  }

  .tech-item:hover {
    background: var(--bg-card-hover);
    color: var(--accent);
    border-color: var(--accent);
    transform: translateY(-2px);
  }

  /* Mobile toggle */
  .mobile-toggle {
    position: fixed;
    top: 1.5rem;
    left: 1.5rem;
    z-index: 1100;
    background: var(--bg-secondary);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 1rem;
    border-radius: 16px;
    cursor: pointer;
    display: none;
    font-size: 1.2rem;
    transition: all 0.3s ease;
  }

  .mobile-toggle:hover {
    background: var(--bg-card-hover);
    transform: scale(1.05);
  }

  /* Main content */
  .main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: margin-left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .hero {
    padding: 6rem 3rem;
    text-align: center;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: var(--bg-primary);
  }

  .hero-content {
    position: relative;
  }

  .hero h1 {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    letter-spacing: -0.05em;
  }

  .hero-subtitle {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-weight: 400;
    letter-spacing: 0.5px;
  }

  .hero-description {
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
    font-size: 1.1rem;
    line-height: 1.8;
  }

  .cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
  }

  .btn {
    padding: 1.25rem 2.5rem;
    border-radius: 16px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
  }

  .btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
      90deg,
      transparent,
      rgba(255, 255, 255, 0.1),
      transparent
    );
    transition: left 0.6s;
  }

  .btn:hover::before {
    left: 100%;
  }

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

  .btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
  }

  .btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border);
    backdrop-filter: blur(20px);
  }

  .btn-secondary:hover {
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    border-color: var(--accent);
  }

  /* Sections */
  .section {
    padding: 6rem 3rem;
    max-width: 1200px;
    margin: 0 auto;
  }

  .section-title {
    font-size: 3rem;
    margin-bottom: 4rem;
    text-align: center;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text-primary);
  }

  .about-list {
    display: flex;
    flex-direction: column;
    gap: 3rem;
  }

  .about-item {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 3rem;
  }

  .about-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .about-icon {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-top: -5px;
  }

  .about-text h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
  }

  .about-text p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    max-width: 65ch;
  }

  .about-item > svg {
    width: 32px;
    height: 32px;
    color: var(--text-primary);
    flex-shrink: 0;
    margin-top: 4px;
  }

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

  .skill-category {
    margin-bottom: 2.5rem; /* Add space between categories */
  }

  .skill-category h4 {
    margin-bottom: 1.5rem;
    color: var(--accent);
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: -0.025em;
  }

  .skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .skill-tag {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 0.75rem 1.25rem;
    border-radius: 24px;
    font-size: 0.9rem;
    border: 1px solid var(--border);
    font-weight: 500;
    transition: all 0.3s ease;
  }

  .skill-tag:hover {
    background: var(--accent-light);
    color: var(--accent);
    border-color: var(--accent);
    transform: translateY(-2px);
  }

  .experience-item {
    padding: 2.5rem 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 0;
    transition: all 0.3s ease;
  }

  .experience-item:last-of-type {
    border-bottom: none;
  }

  .experience-item:hover {
    background-color: rgba(255, 255, 255, 0.02);
  }

  .experience-header {
    margin-bottom: 1.5rem;
  }

  .experience-title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
    letter-spacing: -0.025em;
  }

  .experience-meta {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
  }

  .footer {
    padding: 2rem 3rem;
    text-align: center;
  }

  .footer h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    font-weight: 600;
    letter-spacing: -0.025em;
  }

  .social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
    margin-left: 200px;
  }

  .social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .social-link svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
    transition: fill 0.3s ease;
  }

  .social-link:hover {
    background: var(--accent-hover);
    color: var(--bg-primary);
    transform: translateY(-4px) scale(1.05);
    box-shadow: var(--shadow);
  }

  /* Responsive */
  @media (max-width: 768px) {
    .mobile-toggle {
      display: block;
    }

    .sidebar {
      width: 100%;
    }

    .main-content {
      margin-left: 0;
    }

    .hero {
      padding: 8rem 2rem 6rem;
    }

    .section {
      padding: 4rem 2rem;
    }

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

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

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

    .section-title {
      font-size: 2.5rem;
    }
  }

  /* Smooth scrolling */
  html {
    scroll-behavior: smooth;
  }

  /* Animations */
  @keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translateY(40px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .fade-in {
    animation: fadeInUp 0.8s ease forwards;
  }

  .floating {
    animation: float 3s ease-in-out infinite;
  }

  /* Glowing effect */
  .glow {
    position: relative;
  }