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

    body {
      font-family: 'Inter', sans-serif;
      background: #f9fafc;
      color: #1e293b;
      line-height: 1.5;
      scroll-behavior: smooth;
    }

    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 2rem;
    }

    /* header / navigation */
    .navbar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      padding: 1.5rem 0;
      border-bottom: 1px solid #e2e8f0;
    }

    .logo {
      font-size: 1.8rem;
      font-weight: 800;
      background: linear-gradient(135deg, #0f2b3d, #1e4a6e);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      letter-spacing: -0.02em;
    }

    .logo span {
      color: #2c7da0;
      background: none;
      -webkit-background-clip: unset;
      background-clip: unset;
    }

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

    .nav-links a {
      text-decoration: none;
      font-weight: 600;
      color: #334155;
      transition: color 0.2s;
    }

    .nav-links a:hover {
      color: #1e4a6e;
    }

    /* hero section */
    .hero {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 3rem;
      padding: 3rem 0 4rem;
    }

    .hero-content {
      flex: 1.2;
    }

    .hero-badge {
      background: #e0f2fe;
      color: #0369a1;
      display: inline-block;
      padding: 0.3rem 1rem;
      border-radius: 40px;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 1.2rem;
    }

    .hero-content h1 {
      font-size: 3.2rem;
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 1rem;
      color: #0f172a;
    }

    .hero-content h1 .highlight {
      background: linear-gradient(120deg, #1e4a6e, #2c7da0);
      background-clip: text;
      -webkit-background-clip: text;
      color: transparent;
    }

    .tagline {
      font-size: 1.25rem;
      color: #334155;
      margin-bottom: 1.5rem;
      border-left: 4px solid #2c7da0;
      padding-left: 1rem;
    }

    .tech-stack {
      display: flex;
      flex-wrap: wrap;
      gap: 0.7rem;
      margin: 1.8rem 0;
    }

    .tech-badge {
      background: white;
      border-radius: 40px;
      padding: 0.4rem 1.2rem;
      font-size: 0.85rem;
      font-weight: 600;
      box-shadow: 0 1px 2px rgba(0,0,0,0.05);
      border: 1px solid #e2e8f0;
      color: #1e293b;
    }

    .tech-badge i {
      margin-right: 6px;
      color: #2c7da0;
    }

    .btn-group {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
      margin-top: 1rem;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      padding: 0.75rem 1.8rem;
      border-radius: 40px;
      font-weight: 600;
      text-decoration: none;
      transition: all 0.25s;
    }

    .btn-primary {
      background: #1e4a6e;
      color: white;
      border: none;
    }

    .btn-primary:hover {
      background: #0f3b58;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    }

    .btn-outline {
      background: transparent;
      border: 1.5px solid #cbd5e1;
      color: #1e293b;
    }

    .btn-outline:hover {
      border-color: #1e4a6e;
      color: #1e4a6e;
      transform: translateY(-2px);
    }

    /* profile picture container */
    .hero-image {
      flex: 0.8;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .profile-card {
      background: white;
      border-radius: 2rem;
      padding: 1rem;
      box-shadow: 0 20px 35px -12px rgba(0,0,0,0.1);
      transition: transform 0.2s;
      text-align: center;
    }

    .profile-card:hover {
      transform: scale(1.02);
    }

    .profile-img {
      width: 260px;
      height: 260px;
      object-fit: cover;
      border-radius: 1.5rem;
      background: #eef2ff;
      display: block;
      margin: 0 auto;
      border: 4px solid white;
      box-shadow: 0 4px 14px rgba(0,0,0,0.05);
    }

    .img-placeholder {
      width: 260px;
      height: 260px;
      background: linear-gradient(145deg, #d9e2ef, #cbd5e6);
      border-radius: 1.5rem;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      color: #334155;
      font-size: 0.9rem;
      font-weight: 500;
      gap: 0.5rem;
    }

    .img-placeholder i {
      font-size: 3rem;
      color: #2c5a7a;
    }

    .profile-caption {
      margin-top: 1rem;
      font-weight: 500;
      color: #2c3e50;
    }

    /* projects section */
    .section-title {
      font-size: 2rem;
      font-weight: 700;
      margin: 2rem 0 1rem;
      padding-top: 1rem;
    }

    .section-title:after {
      content: '';
      display: block;
      width: 60px;
      height: 4px;
      background: #2c7da0;
      margin-top: 0.5rem;
      border-radius: 4px;
    }

    .projects-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 2rem;
      margin: 2rem 0 2.5rem;
    }

    .project-card {
      background: white;
      border-radius: 1.5rem;
      padding: 1.5rem;
      transition: all 0.3s;
      box-shadow: 0 8px 20px rgba(0,0,0,0.02);
      border: 1px solid #edf2f7;
    }

    .project-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 20px 30px -12px rgba(0,0,0,0.1);
      border-color: #cbdff2;
    }

    .project-icon {
      font-size: 2.2rem;
      color: #1e4a6e;
      margin-bottom: 1rem;
    }

    .project-card h3 {
      font-size: 1.4rem;
      margin-bottom: 0.75rem;
    }

    .project-card p {
      color: #475569;
      margin-bottom: 1rem;
    }

    .project-tech {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      margin-top: 1rem;
    }

    .project-tech span {
      background: #eef2ff;
      padding: 0.2rem 0.7rem;
      border-radius: 30px;
      font-size: 0.7rem;
      font-weight: 600;
      color: #1e4a6e;
    }

    /* skills highlight */
    .skills-highlight {
      background: white;
      border-radius: 2rem;
      padding: 2rem;
      margin: 2rem 0;
      border: 1px solid #eef2ff;
      box-shadow: 0 5px 15px rgba(0,0,0,0.02);
    }

    .skills-flex {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      justify-content: center;
      margin-top: 1.5rem;
    }

    .skill-item {
      background: #f1f5f9;
      padding: 0.5rem 1.2rem;
      border-radius: 60px;
      font-weight: 500;
      font-size: 0.9rem;
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
    }

    .skill-item i {
      color: #1e4a6e;
    }

    /* footer / contact */
    .footer {
      margin-top: 4rem;
      background: #0f172a;
      color: #cbd5e1;
      padding: 2.5rem 0;
      border-radius: 2rem 2rem 0 0;
    }

    .footer-content {
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1.5rem;
      align-items: center;
    }

    .footer-left p {
      margin-bottom: 0.5rem;
    }

    .social-links a {
      color: #94a3b8;
      font-size: 1.5rem;
      margin-left: 1.2rem;
      transition: color 0.2s;
    }

    .social-links a:hover {
      color: white;
    }

    .footer-right {
      text-align: right;
    }

    @media (max-width: 850px) {
      .hero {
        flex-direction: column-reverse;
        text-align: center;
      }
      .hero-content h1 {
        font-size: 2.5rem;
      }
      .tagline {
        text-align: left;
      }
      .btn-group {
        justify-content: center;
      }
      .tech-stack {
        justify-content: center;
      }
      .navbar {
        flex-direction: column;
        gap: 1rem;
      }
      .footer-content {
        flex-direction: column;
        text-align: center;
      }
      .footer-right {
        text-align: center;
      }
    }