* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
  }
  
  :root {
      --primary-gradient: linear-gradient(135deg, #007AFF, #5856D6);
      --glass-bg: rgba(255, 255, 255, 0.3);
      --glass-border: rgba(255, 255, 255, 0.4);
      --text-primary: #1F1F1F;
      --text-secondary: #4B4B4B;
      --text-accent: #007AFF;
      --shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
      --bubble-color-1: rgba(255, 100, 100, 0.7);
      --bubble-color-2: rgba(100, 255, 100, 0.7);
      --bubble-color-3: rgba(100, 100, 255, 0.7);
      --bubble-color-4: rgba(255, 255, 100, 0.7);
      --bubble-color-5: rgba(255, 100, 255, 0.7);
  }
  
  body {
      font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', sans-serif;
      background: linear-gradient(135deg, #F3F4F6, #E5E7EB);
      color: var(--text-primary);
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      line-height: 1.6;
  }
  
  /* Animated bubble background */
  .background {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: -1;
      overflow: hidden;
  }
  
  .bubble {
      position: absolute;
      border-radius: 50%;
      background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.9), transparent 60%);
      opacity: 0.8;
      animation: float 8s infinite ease-in-out, shimmer 2s infinite ease-in-out, wobble 4s infinite ease-in-out;
      box-shadow: inset 0 0 25px rgba(255, 255, 255, 0.4), 0 0 40px rgba(0, 0, 0, 0.3);
  }
  
  .bubble:nth-child(1) { background-color: var(--bubble-color-1); width: 180px; height: 180px; left: 10%; top: 20%; animation-duration: 9s, 2.2s, 4.5s; }
  .bubble:nth-child(2) { background-color: var(--bubble-color-2); width: 220px; height: 220px; left: 40%; top: 60%; animation-duration: 10s, 2.1s, 4.2s; animation-delay: -3s; }
  .bubble:nth-child(3) { background-color: var(--bubble-color-3); width: 200px; height: 200px; right: 15%; top: 30%; animation-duration: 8.5s, 2.3s, 4.8s; animation-delay: -6s; }
  .bubble:nth-child(4) { background-color: var(--bubble-color-4); width: 240px; height: 240px; right: 25%; top: 70%; animation-duration: 11s, 2.4s, 4.3s; animation-delay: -9s; }
  .bubble:nth-child(5) { background-color: var(--bubble-color-5); width: 190px; height: 190px; left: 50%; top: 40%; animation-duration: 9.5s, 2.5s, 4.6s; animation-delay: -4s; }
  
  @keyframes float {
      0%, 100% { transform: translateY(0) translateX(0) scale(1); }
      50% { transform: translateY(-150px) translateX(50px) scale(1.1); }
  }
  
  @keyframes shimmer {
      0%, 100% { opacity: 0.8; }
      50% { opacity: 1; }
  }
  
  @keyframes wobble {
      0%, 100% { border-radius: 50% 50% 50% 50%; }
      25% { border-radius: 50% 45% 55% 50%; }
      50% { border-radius: 45% 50% 50% 55%; }
      75% { border-radius: 50% 55% 45% 50%; }
  }
  
  /* iOS 26-like water droplet glass effect */
  .glass {
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: 28px;
      box-shadow: var(--shadow), inset 0 0 30px rgba(255, 255, 255, 0.3);
      position: relative;
      overflow: hidden;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  
  .glass::before {
      content: '';
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.4), transparent 70%);
      opacity: 0.6;
      transition: opacity 0.3s ease;
      transform: rotate(45deg);
  }
  
  .glass:hover {
      transform: translateY(-5px);
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), inset 0 0 35px rgba(255, 255, 255, 0.4);
  }
  
  .glass:hover::before {
      opacity: 0.8;
  }
  
  /* Navigation */
  .nav {
      position: fixed;
      top: 20px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 1000;
      padding: 12px;
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: 18px;
      box-shadow: var(--shadow);
      opacity: 0;
      transition: opacity 0.6s ease-out;
  }
  
  .nav.visible {
      opacity: 1;
  }
  
  .nav-tabs {
      display: flex;
      gap: 8px;
  }
  
  .nav-tab {
      padding: 12px 26px;
      border-radius: 14px;
      color: var(--text-secondary);
      text-decoration: none;
      font-size: 16px;
      font-weight: 600;
      transition: all 0.3s ease;
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      box-shadow: inset 0 0 15px rgba(255, 255, 255, 0.3);
  }
  
  .nav-tab.active, .nav-tab:hover {
      background: rgba(255, 255, 255, 0.3);
      color: var(--text-primary);
      box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.4);
  }
  
  /* Main content */
  .main {
      padding-top: 0;
  }
  
  /* Hero section */
  .hero {
      height: 100vh;
      width: 100%;
      display: flex;
      align-items: center;
      background: #000000;
      position: relative;
      overflow: hidden;
      margin: 0;
      padding: 0;
  }
  
  .hero-container {
      display: flex;
      width: 100%;
      height: 100%;
      margin: 0;
      padding: 0;
  }
  
  .hero-left {
      width: 50%;
      padding: 60px 40px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: flex-start;
      color: #FFFFFF;
  }
  
  .hero-left-content {
      max-width: 400px;
  }

  
  .hero-left h1 {
      font-size: clamp(7rem, 13vw, 11rem);
      font-weight: 800;
      letter-spacing: -0.03em;
      margin-bottom: 25px;
      color: #FFFFFF;
      text-align: left;
      position: relative;
      line-height: 1; 
  }
  
  .hero-left h1::after {
      content: '';
      position: absolute;
      bottom: -5px;
      left: 0;
      width: 50px;
      height: 2px;
      background: var(--primary-gradient);
      transition: width 0.3s ease;
  }
  
  .hero-left h1:hover::after {
      width: 100px;
  }
  
  .hero-left .subtitle {
      font-size: clamp(1.2rem, 3vw, 1.8rem);
      font-weight: 500;
      color: #B0B0B0;
      margin-bottom: 30px;
      text-align: left;
  }
  
  .hero-left .about-brief {
      font-size: 1rem;
      color: #B0B0B0;
      margin-bottom: 40px;
      line-height: 1.6;
      text-align: left;
      max-width: 300px;
  }
  
  .hero-left .about-brief a {
      color: var(--text-accent);
      text-decoration: none;
      font-weight: 600;
  }
  
  .hero-left .about-brief a:hover {
      text-decoration: underline;
  }
  
  .hero-right {
      width: 50%;
      margin: 0;
      padding: 0;
      display: flex;
      align-items: center;
      justify-content: flex-end;
  }
  
  .hero-video {
      width: 100%;
      height: 100%;
      object-fit: cover;
      margin: 0;
      padding: 0;
  }
  
  .cta-buttons {
      display: flex;
      gap: 15px;
      flex-wrap: wrap;
  }
  
  .cta-btn {
      padding: 10px 20px;
      border-radius: 16px;
      text-decoration: none;
      font-weight: 700;
      font-size: 14px;
      transition: all 0.3s ease;
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      color: #b6b2b2;
      box-shadow: inset 0 0 15px rgba(255, 255, 255, 0.3);
      display: inline-block;
      position: relative;
      z-index: 999; /* increase if needed */
      pointer-events: auto;
  }
  .my-link {
      position: relative;
      z-index: 999; 
      pointer-events: auto;
  }
  
  .cta-btn.primary {
      background: var(--primary-gradient);
      border: none;
      color: #FFFFFF;
  }
  
  .cta-btn:hover {
      transform: translateY(-3px);
      
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4), inset 0 0 20px rgba(255, 255, 255, 0.4);
  }
  
  .hero::after {
      content: '';
      position: absolute;
      bottom: -1px;
      left: 0;
      width: 100%;
      height: 300px;
      background: linear-gradient(to top, #ffffff 0%, rgba(255, 255, 255, 0.8) 30%, rgba(255, 255, 255, 0.1) 70%, rgba(0, 0, 0, 0) 100%);
      z-index: 2;
      pointer-events: none;
      opacity: 0;
      transition: opacity 1.5s ease-out;
      mix-blend-mode: lighten;
      filter: blur(4px);
      box-shadow: 0 40px 60px 20px white;
  }
  
  .hero.scrolled::after {
      opacity: 1;
  }
  
  /* About section */
  .about {
      min-height: auto;
      padding: 140px 32px;
      position: relative;
  }
  
  .about-glass {
      background: rgba(255, 255, 255, 0.25);
      border: 1px solid var(--glass-border);
      border-radius: 36px;
      padding: 60px;
      max-width: 1200px;
      margin: 0 auto;
      box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5), inset 0 0 30px rgba(255, 255, 255, 0.4);
      display: flex;
      align-items: center;
      gap: 48px;
  }
  
  .about-image {
      width: 280px;
      height: 280px;
      border-radius: 28px;
      background: transparent; /* Remove glass background */
      border: none; /* Remove glass border */
      box-shadow: none; /* Remove glass shadow */
      overflow: hidden;
      flex-shrink: 0;
      z-index: 10; /* Ensure image is above glass effect */
      position: relative;
  }
  
  .about-image img {
      width: 105%;
      height: 105%;
      object-fit: cover;
      display: block;
  }
  
  .about-content {
      flex: 1;
      text-align: left;
  }
  
  .about h1 {
      font-size: clamp(3rem, 6vw, 4.5rem);
      font-weight: 800;
      letter-spacing: -0.03em;
      margin-bottom: 16px;
      color: var(--text-primary);
  }
  
  .about .subtitle {
      font-size: clamp(1.5rem, 3vw, 2rem);
      font-weight: 500;
      color: var(--text-secondary);
      margin-bottom: 24px;
  }
  
  .about .about-brief {
      font-size: 1.2rem;
      color: var(--text-secondary);
      margin-bottom: 32px;
      max-width: 600px;
      line-height: 1.8;
  }
  
  .about .about-brief a {
      color: var(--text-accent);
      text-decoration: none;
      font-weight: 600;
  }
  
  .about .about-brief a:hover {
      text-decoration: underline;
  }
  
  /* Sections */
  .section {
      padding: 140px 0;
      transition: opacity 0.8s ease, transform 0.8s ease;
  }
  
  .container {
      max-width: 1400px;
      margin: 0 auto;
      padding: 0 32px;
  }
  
  .section-header {
      text-align: center;
      margin-bottom: 100px;
  }
  
  .section-header h2 {
      font-size: clamp(3rem, 6vw, 4.5rem);
      font-weight: 800;
      letter-spacing: -0.02em;
      margin-bottom: 20px;
  }
  
  .section-header p {
      font-size: 1.5rem;
      color: var(--text-secondary);
      max-width: 800px;
      margin: 0 auto;
      line-height: 1.7;
  }
  
  /* Card grid */
  .cards-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
      gap: 40px;
  }
  
  .card {
      padding: 48px;
      transition: all 0.3s ease;
  }
  
  .card-icon {
      font-size: 3rem;
      margin-bottom: 24px;
      display: block;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
  }
  
  .card h3 {
      font-size: 1.9rem;
      font-weight: 700;
      margin-bottom: 20px;
  }
  
  .card p {
      color: var(--text-secondary);
      line-height: 1.8;
      font-size: 1.2rem;
  }
  
  .card ul {
      list-style: none;
      color: var(--text-secondary);
      font-size: 1.1rem;
      line-height: 1.8;
      margin-top: 16px;
  }
  
  .card ul li::before {
      content: '•';
      color: var(--text-accent);
      margin-right: 8px;
  }
  
  /* Experience timeline */
  .timeline {
      position: relative;
      padding: 48px 0;
  }
  
  .timeline::before {
      content: '';
      position: absolute;
      left: 50%;
      top: 0;
      bottom: 0;
      width: 3px;
      background: var(--glass-border);
      transform: translateX(-50%);
  }
  
  .timeline-item {
      display: flex;
      margin-bottom: 80px;
      position: relative;
  }
  
  .timeline-item:nth-child(even) {
      flex-direction: row-reverse;
  }
  
  .timeline-content {
      width: calc(50% - 48px);
      padding: 40px;
  }
  
  .timeline-dot {
      position: absolute;
      left: 50%;
      top: 40px;
      width: 16px;
      height: 16px;
      background: var(--primary-gradient);
      border-radius: 50%;
      transform: translateX(-50%);
      box-shadow: 0 0 20px rgba(0, 122, 255, 0.6);
      z-index: 2;
  }
  
  .timeline-content h4 {
      font-size: 1.6rem;
      font-weight: 700;
      margin-bottom: 12px;
  }
  
  .timeline-content .company {
      color: var(--text-accent);
      font-weight: 600;
      margin-bottom: 8px;
  }
  
  .timeline-content .duration {
      color: var(--text-secondary);
      font-size: 1rem;
      margin-bottom: 20px;
  }
  
  .timeline-content p {
      color: var(--text-secondary);
      line-height: 1.8;
  }
  
  .timeline-content ul {
      list-style: none;
      color: var(--text-secondary);
      font-size: 1.1rem;
      line-height: 1.8;
      margin-top: 16px;
  }
  
  .timeline-content ul li::before {
      content: '•';
      color: var(--text-accent);
      margin-right: 8px;
  }
  
  /* Skills */
  .skills-container {
      padding: 56px;
      text-align: center;
  }
  
  .skills-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
      gap: 24px;
      margin-top: 40px;
  }
  
  .skill-item {
      padding: 20px;
      border-radius: 14px;
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      color: var(--text-primary);
      font-weight: 600;
      font-size: 1.1rem;
      transition: all 0.3s ease;
      box-shadow: inset 0 0 15px rgba(255, 255, 255, 0.3);
      text-align: center;
      min-height: 60px;
      display: flex;
      align-items: center;
      justify-content: center;
  }
  
  .skill-item:hover {
      background: rgba(255, 255, 255, 0.4);
      transform: translateY(-3px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4), inset 0 0 20px rgba(255, 255, 255, 0.4);
  }
  
  /* Contact section */
  .contact-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 40px;
  }
  
  .contact-item {
      padding: 40px;
      text-align: center;
  }
  
  .contact-icon {
      font-size: 2.5rem;
      margin-bottom: 20px;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
  }
  
  .contact-item h4 {
      font-size: 1.5rem;
      font-weight: 700;
      margin-bottom: 12px;
  }
  
  .contact-item p {
      color: var(--text-secondary);
      margin-bottom: 20px;
      font-size: 1.1rem;
  }
  
  .contact-item a {
      color: var(--text-accent);
      text-decoration: none;
      font-weight: 600;
      font-size: 1.1rem;
      transition: color 0.3s ease;
  }
  
  .contact-item a:hover {
      color: #5856D6;
  }
  
  .skills-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
      gap: 20px;
  }
  
  .skill-item {
      display: flex;
      align-items: center;
      justify-content: flex-start;
      gap: 10px;
      padding: 12px 16px;
      border-radius: 12px;
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(10px);
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
      font-weight: 500;
      font-size: 1.1rem;
      color: var(--text-primary);
      transition: transform 0.6s ease, box-shadow 0.6s ease, opacity 0.6s ease;
  }
  
  .skill-item:hover {
      transform: translateY(-2px);
      opacity: 0.95;
  }
  
  .skill-item i,
  .skill-item svg {
      font-size: 1.5rem;
      min-width: 24px;
  }
  
  /* Animations */
  @keyframes fadeInUp {
      from { opacity: 0; transform: translateY(30px); }
      to { opacity: 1; transform: translateY(0); }
  }
  
  @keyframes fadeScaleIn {
      from { opacity: 0; transform: scale(0.95); }
      to { opacity: 1; transform: scale(1); }
  }
  
  .animate-on-scroll {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  }
  
  .animate-on-scroll.animated {
      opacity: 1;
      transform: translateY(0);
  }
  
  .section-transition {
      opacity: 0;
      transform: scale(0.95);
      transition: opacity 0.8s ease-out, transform 0.8s ease-out;
  }
  
  .section-transition.visible {
      opacity: 1;
      transform: scale(1);
  }
  
  /* Responsive */
  @media (max-width: 768px) {
      .nav {
          width: 95%;
          padding: 8px;
      }
  
      .nav-tabs {
          flex-wrap: wrap;
          justify-content: center;
          gap: 4px;
      }
  
      .nav-tab {
          padding: 10px 18px;
          font-size: 14px;
      }
  
      .hero-container {
          flex-direction: column;
      }
  
      .hero-left, .hero-right {
          width: 100%;
      }
  
      .hero-left {
          padding: 40px 24px;
          text-align: center;
          align-items: center;
      }
  
      .hero-left h1 {
          font-size: clamp(2.2rem, 4vw, 3rem);
      }
  
      .hero-left .subtitle {
          font-size: clamp(1.2rem, 2.5vw, 1.5rem);
      }
  
      .hero-video {
          height: 50vh;
      }
  
      .about-glass {
          padding: 40px 24px;
          flex-direction: column;
          text-align: center;
      }
  
      .about-image {
          width: 200px;
          height: 200px;
          margin-bottom: 24px;
          z-index: 9999;
      }
  
      .about-content {
          text-align: center;
      }
  
      .about h1 {
          font-size: clamp(2.2rem, 4vw, 3rem);
      }
  
      .about .subtitle {
          font-size: clamp(1.2rem, 2.5vw, 1.5rem);
      }
  
      .timeline::before {
          left: 24px;
      }
  
      .timeline-item {
          flex-direction: column !important;
          margin-bottom: 60px;
      }
  
      .timeline-content {
          width: calc(100% - 72px);
          margin-left: 48px;
          padding: 24px;
      }
  
      .timeline-dot {
          left: 24px;
          top: 24px;
      }
  
      .cards-grid {
          grid-template-columns: 1fr;
      }
  
      .contact-grid {
          grid-template-columns: 1fr;
      }
  
      .cta-buttons {
          flex-direction: column;
          align-items: center;
          gap: 12px;
      }
  
      .section {
          padding: 80px 0;
      }
  
      .section-header h2 {
          font-size: clamp(2.2rem, 4vw, 3rem);
      }
  
      .skills-grid {
          grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
      }
  }