* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  html {
    scroll-behavior: smooth;
  }
  
  body {
    font-family: Inter, Arial, sans-serif;
    background: #050816;
    color: #f5f7ff;
    line-height: 1.7;
    overflow-x: hidden;
  }
  
  .stars {
    position: fixed;
    inset: 0;
    z-index: -1;
    background:
      radial-gradient(circle at 20% 30%, rgba(102, 217, 255, 0.12), transparent 25%),
      radial-gradient(circle at 80% 20%, rgba(170, 100, 255, 0.12), transparent 25%),
      radial-gradient(circle at 50% 80%, rgba(255, 255, 255, 0.08), transparent 20%),
      #050816;
  }
  
  /* Navigation */
  
  .navbar {
    width: 100%;
    padding: 24px 10%;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .logo {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
  }
  
  .nav-links {
    display: flex;
    gap: 26px;
  }
  
  .nav-links a {
    color: #d7dcff;
    text-decoration: none;
    font-size: 0.95rem;
    transition: 0.3s;
  }
  
  .nav-links a:hover {
    color: #66d9ff;
    text-shadow: 0 0 12px rgba(102,217,255,0.7);
  }
  
  /* Hero */
  
  .hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }
  
  .hero-content {
    flex: 1;
    width: min(900px, 90%);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  
  .eyebrow,
  .section-label {
    color: #66d9ff;
    text-transform: uppercase;
    letter-spacing: 3px;
    font-size: 1.0rem;
    font-weight: 700;
    margin-bottom: 18px;
  }
  
  .hero-content h1 {
    max-width: 950px;
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    line-height: 1.05;
    letter-spacing: -2px;
    margin-bottom: 36px;
  }
  
  .intro {
    max-width: 720px;
    color: #c7cbed;
    font-size: 1.25rem;
    line-height: 1.9;
  }
  
  /* Buttons */
  
  .hero-buttons {
    display: flex;
    gap: 16px;
    margin-top: 42px;
    flex-wrap: wrap;
  }
  
  .btn {
    display: inline-block;
    padding: 14px 26px;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 700;
    transition: 0.3s;
  }
  
  .primary {
    background: #66d9ff;
    color: #050816;
  }
  
  .primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 28px rgba(102, 217, 255, 0.45);
  }
  
  .secondary {
    border: 1px solid rgba(102, 217, 255, 0.7);
    color: #66d9ff;
  }
  
  .secondary:hover {
    background: rgba(102, 217, 255, 0.08);
    transform: translateY(-3px);
  }
  
  /* Sections */
  
  .section {
    width: min(1100px, 90%);
    margin: 0 auto;
    padding: 50px 0;
    border-top: 1px solid rgba(255,255,255,0.05);
  }
  
  .section h2 {
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    line-height: 1.15;
    max-width: 850px;
    margin-bottom: 24px;
  }
  
  .section p {
    max-width: 780px;
    color: #c7cbed;
  }
  
  /* Cards */
  
  .cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 26px;
    margin-top: 36px;
  }
  
  .card {
    position: relative;
    padding: 30px;
    min-height: 260px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.055);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(14px);
    transition: 0.35s ease;
    overflow: hidden;
  }
  
  .card::before {
    content: "";
    position: absolute;
    inset: -1px;
    background: radial-gradient(circle at top left, rgba(102, 217, 255, 0.22), transparent 35%);
    opacity: 0;
    transition: 0.35s ease;
  }
  
  .card:hover {
    transform: translateY(-10px);
    border-color: rgba(102, 217, 255, 0.5);
  }
  
  .card:hover::before {
    opacity: 1;
  }
  
  .card > * {
    position: relative;
    z-index: 1;
  }
  
  .card-tag {
    display: inline-block;
    margin-bottom: 18px;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(102, 217, 255, 0.12);
    color: #66d9ff;
    font-size: 0.78rem;
    font-weight: 700;
  }
  
  .card h3 {
    font-size: 1.6rem;
    margin-bottom: 14px;
  }
  
  .tech {
    margin-top: 18px;
    color: #66d9ff !important;
    font-size: 0.95rem;
  }
  
  /* Mobile */
  
  @media (max-width: 760px) {
    .navbar {
      align-items: flex-start;
      gap: 18px;
      flex-direction: column;
    }
  
    .nav-links {
      flex-wrap: wrap;
      gap: 14px;
      color: rgba(255,255,255,0.75);
    }
  
    .hero-content h1 {
      letter-spacing: -1px;
    }
  }
  
  .star {
    position: absolute;
    border-radius: 50%;
    background: white;
  
    animation: twinkle 5s infinite;
  }
  
  @keyframes twinkle {
    0% {
      opacity: 0.2;
    }
  
    50% {
      opacity: 1;
    }
  
    100% {
      opacity: 0.2;
    }
  }
  
  #changing-word {
    color: #66d9ff;
    margin-left: 6px;
  }
  
  .identity {
    margin-top: 24px;
    color: #66d9ff;
    font-weight: 700;
    letter-spacing: 1px;
  }
  .project-card {
    padding: 0;
  }
  
  .project-image {
    width: 100%;
    height: 190px;
    object-fit: cover;
    display: block;
  }
  
  .project-content {
    padding: 28px;
  }
  
  .project-links {
    display: flex;
    gap: 14px;
    margin-top: 22px;
  }
  
  .project-links a {
    color: #66d9ff;
    text-decoration: none;
    font-weight: 700;
  }
  
  .timeline {
    margin-top: 50px;
    border-left: 2px solid rgba(102, 217, 255, 0.25);
    padding-left: 35px;
  }
  
  .timeline-item {
    position: relative;
    margin-bottom: 50px;
  }
  
  .timeline-item::before {
    content: "";
    position: absolute;
    left: -44px;
    top: 8px;
  
    width: 14px;
    height: 14px;
  
    border-radius: 50%;
    background: #66d9ff;
  
    box-shadow: 0 0 12px rgba(102, 217, 255, 0.7);
  }
  
  .timeline-year {
    color: #66d9ff;
    font-weight: 700;
    margin-bottom: 10px;
  }
  
  .timeline-content h3 {
    margin-bottom: 10px;
    font-size: 1.3rem;
  }
  
  .timeline-content p {
    color: #c7cbed;
  }
  
  .writing-card {
    margin-top: 36px;
    max-width: 720px;
    padding: 32px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.055);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(14px);
    transition: 0.35s ease;
  }
  
  .writing-card:hover {
    transform: translateY(-8px);
    border-color: rgba(102, 217, 255, 0.5);
  }
  
  .writing-card h3 {
    font-size: 1.6rem;
    margin-bottom: 14px;
  }
  
  .contact-links {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 32px;
  }
  
  .contact-links a {
    padding: 14px 22px;
    border-radius: 999px;
    border: 1px solid rgba(102, 217, 255, 0.45);
    color: #66d9ff;
    text-decoration: none;
    font-weight: 700;
    transition: 0.3s ease;
  }
  
  .contact-links a:hover {
    background: rgba(102, 217, 255, 0.08);
    transform: translateY(-3px);
  }
  .footer {
    width: min(1100px, 90%);
    margin: 0 auto;
    padding: 50px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
  }
  
  .footer p {
    color: #f5f7ff;
    font-weight: 800;
    margin-bottom: 8px;
  }
  
  .footer span {
    display: block;
    color: #c7cbed;
    margin-bottom: 12px;
  }
  
  .footer small {
    color: rgba(255, 255, 255, 0.45);
  }
  
  .research-links {
    margin-top: 15px;
  }
  
  .research-links a {
    text-decoration: none;
    color: #66d9ff;
    font-weight: 700;
  }
  .skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 32px;
  }
  
  .skills-grid span {
    padding: 12px 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.055);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #c7cbed;
    font-weight: 700;
  }