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

    :root {
      --bg-primary: #ffffff;
      --bg-secondary: #f8f9fa;
      --text-primary: #002e63;
      --text-secondary: #4a5568;
      --accent: #0d98ba;
      --accent-dark:#0d98ba;
      --header-bg: #1a1a1a;
      --border: #e2e8f0;
      --shadow: rgba(0, 0, 0, 0.1);
    }

    body {
      font-family: 'Inter', sans-serif;
      line-height: 1.6;
      color: var(--text-primary);
      background: var(--bg-primary);
    }

    header {
      position: fixed;
      top: 0;
      left: 0;
      width: 280px;
      height: 100vh;
      height: 100dvh; /* For mobile browsers */
      background: #003153;
      color: white;
      overflow-y: auto;
      overflow-x: hidden;
      -webkit-overflow-scrolling: touch;
      z-index: 1000;
      box-shadow: 2px 0 10px var(--shadow);
      transition: left 0.3s ease-in-out;
    }

    /* Fix for mobile sidebar */
    @media (max-width: 1024px) {
      header {
        position: fixed !important;
        top: 0 !important;
        bottom: 0 !important;
        height: 100vh !important;
        height: 100dvh !important;
        left: -280px;
      }

      header.mobile-nav-active {
        left: 0 !important;
      }
    }

    .profile {
      text-align: center;
      padding: 20px 1.5rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .profile img {
      width: 100px;
      height: 100px;
      border-radius: 50%;
      border: 4px solid #1a1a1a;
      margin-bottom: 5px;
    }

    .profile h1 {
      font-size: 1.35rem;
      font-weight: 600;
      margin-bottom:10px;
    }

    .profile h1 a {
      color: white;
      text-decoration: none;
    }

    .social-links {
      display: flex;
      justify-content: center;
      gap: 8px;
      margin-top: 5px;
    }

    .social-links a {
      width: 32px;
      height: 32px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: #1a1a1a;
      border-radius: 50%;
      color: white;
      text-decoration: none;
      font-size: 0.9rem;
      transition: background 0.3s ease, transform 0.3s ease;
    }

    .social-links a:hover {
      background: var(--accent);
      transform: translateY(-3px);
    }

    .nav-menu {
      padding: 0 0;
    }

    .nav-menu ul {
      list-style: none;
    }

    .nav-menu a {
      display: flex;
      align-items: center;
      gap: 0.9rem;
      padding: 0.75rem 1.5rem;
      color: rgba(255, 255, 255, 0.8);
      text-decoration: none;
      font-size:15px;
      transition: all 0.3s ease;
    }

    .nav-menu a:hover,
    .nav-menu a.active {
      background: rgba(59, 130, 246, 0.1);
      color: var(--accent);
      border-left: 3px solid var(--accent);
    }

    .nav-menu i {
      font-size: 1.1rem;
      width: 22px;
    }

    .mobile-nav-toggle {
      position: fixed;
      top: 1rem;
      right: 1rem;
      z-index: 1001;
      background:none;
      color:  var(--accent);
      border: none;
      width: 44px;
      height: 44px;
      border-radius: 8px;
      cursor: pointer;
      display: none;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      transition: background 0.3s ease;
    }

    .mobile-nav-toggle:hover {
      background: black;
    }

    main {
      margin-left: 280px;
    }

    section {
      padding: 3rem 2.5rem;
    }

    .container {
      max-width: 1100px;
      margin: 0 auto;
    }

    #hero {
      height: 180px;
      display: flex;
      align-items: center;
      justify-content: left;
      background: black;
      color: white;
      text-align: left;
    }

    @media (min-width:769px) {
      #hero {
        padding-left:120px;
      }
    }

    #hero h1 {
      font-size: 2.5rem;
      font-weight: 700;
      margin-bottom: 0.8rem;
    }

    #hero p {
      font-size: 1.3rem;
      font-weight: 300;
    }

    .typed {
      color: white;
    }

    .section-title {
      text-align: center;
      margin-bottom: 2.5rem;
    }

    .section-title h2 {
      font-size: 2rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 0.5rem;
    }
    
    .section-title h2::after {
      content: '';
      display: block;
      width: 100%;
      max-width: 80px;
      height: 2px;
      background-color: black;
      margin: 0.5rem 0 auto;
    }

    .section-title p {
      color: var(--text-secondary);
      max-width: 100%;
      margin: 0 auto;
      font-size: 1rem;
    }

    .section-bg {
      background: var(--bg-secondary);
    }

    .about-me-row {
      display: grid;
      grid-template-columns: 1fr 2fr;
      gap: 2.5rem;
      margin-top: 2rem;
    }

    .about-me-row img {
      width: 100%;
      border-radius: 12px;
      box-shadow: 0 10px 30px var(--shadow);
    }

    .about-me-row h3 {
      font-size: 1.5rem;
      margin-bottom: 0.8rem;
      color: var(--text-primary);
    }

    .about-me-row ul {
      list-style: none;
      margin-top: 1.2rem;
    }

    .about-me-row li {
      margin-bottom: 0.6rem;
      color: var(--text-secondary);
      font-size: 0.95rem;
    }

    .about-me-row strong {
      color: var(--text-primary);
      margin-right: 0.5rem;
    }

    .about-me-row a {
      color: var(--accent);
      text-decoration: none;
    }

    #projects {
      background:#f8f9fa;
    }

    #portfolio-flters {
      list-style: none;
      display: flex;
      gap: 0.8rem;
      justify-content: center;
      margin-bottom: 2.5rem;
      flex-wrap: wrap;
    }

    #portfolio-flters li {
      padding: 0.6rem 1.3rem;
      background: white;
      border: 2px solid var(--border);
      border-radius: 50px;
      cursor: pointer;
      font-weight: 500;
      font-size: 0.9rem;
      color: var(--text-secondary);
      transition: all 0.3s ease;
    }

    #portfolio-flters li.filter-active,
    #portfolio-flters li:hover {
      background: var(--accent);
      color: white;
      border-color: var(--accent);
      transform: translateY(-2px);
    }

    .projects-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 1.5rem;
    }

    .project-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 16px;
      overflow: hidden;
      transition: all 0.3s ease;
      position: relative;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    }

    .project-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .project-card:hover {
      border-color: var(--accent);
      transform: translateY(-8px);
      box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    }

    .project-card:hover::before {
      opacity: 1;
    }

    .project-image {
      height: 160px;
      background: linear-gradient(135deg, #e0e7ff 0%, #f3e8ff 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 3rem;
      color: var(--accent);
      position: relative;
      overflow: hidden;
    }

    .project-image::after {
      content: '';
      position: absolute;
      top: 0;
      left: -100%;
      width: 100%;
      height: 100%;
      background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
      transition: left 0.5s ease;
    }

    .project-card:hover .project-image::after {
      left: 100%;
    }

    .project-image img {
       width: 100%;
       height: 100%;
       object-fit: cover; /* ya contain */
       object-position: center;
       display: block;
    }

    .project-content {
      padding: 1.5rem;
    }

    .project-title {
      font-size: 1.2rem;
      font-weight: 600;
      margin-bottom: 0.8rem;
      color: var(--text-primary);
    }

    .project-description {
      color: var(--text-secondary);
      margin-bottom: 1.2rem;
      line-height: 1.6;
      font-size: 0.9rem;
    }

    .project-tech {
      display: flex;
      flex-wrap: wrap;
      font-weight:bold;
      gap: 0.4rem;
      margin-bottom: 1.2rem;
    }

    .project-tech span {
      padding: 0.35rem 0.75rem;
      background:rgba(59, 130, 246, 0.15);
      border: 1px solid rgba(59, 130, 246, 0.3);
      border-radius: 5px;
      font-size: 0.75rem;
      font-weight:bold;
      color: var(--accent);
    }

    .project-links {
      display: flex;
      gap: 0.8rem;
    }

    .project-links a {
      flex: 1;
      padding: 0.6rem;
      text-align: center;
      border-radius: 8px;
      text-decoration: none;
      font-weight: 500;
      font-size: 0.9rem;
      transition: all 0.3s ease;
    }

    .link-github {
      background: var(--bg-secondary);
      border: 2px solid var(--border);
      color: var(--text-primary);
    }

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

    .link-live {
      background: var(--accent);
      color: white;
      border: 2px solid var(--accent);
    }

    .link-live:hover {
      background: var(--accent-dark);
      transform: translateY(-2px);
    }

    .icon-box {
      background: white;
      padding: 1.5rem;
      border-radius: 12px;
      margin-bottom: 1.5rem;
      border: 1px solid var(--border);
      text-align: center;
      transition: all 0.3s ease;
    }

    .icon-box:hover {
      box-shadow: 0 8px 20px var(--shadow);
      transform: translateY(-6px);
      border-color: var(--accent);
    }

    .icon-box .icon {
      font-size: 2.5rem;
      color: var(--accent);
      margin-bottom: 0.8rem;
      transition: all 0.3s ease;
    }

    .icon-box:hover .icon {
      transform: scale(1.1);
      color: var(--accent-dark);
    }

    .icon-box h3,
    .icon-box h4 {
      font-size: 1.1rem;
      font-weight: 600;
      margin-bottom: 0.6rem;
      transition: color 0.3s ease;
    }

    .icon-box:hover h3,
    .icon-box:hover h4 {
      color: var(--accent);
    }

    .icon-box a {
      color: var(--text-primary);
      text-decoration: none;
    }

    .icon-box .description {
      color: var(--text-secondary);
      font-size: 0.9rem;
    }

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

    .progress {
      margin-bottom: 1.5rem;
    }

    .skill {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 0.5rem;
      font-weight: 500;
      font-size: 0.95rem;
      color: var(--text-primary);
    }

    .skill i.val {
      margin-left: auto;
    }

    .progress-bar-wrap {
      background: var(--border);
      height: 8px;
      border-radius: 10px;
      overflow: hidden;
    }

    .progress-bar {
      background: linear-gradient(90deg, var(--accent), var(--accent-dark));
      height: 100%;
      border-radius: 10px;
    }

    .resume-title {
      font-size: 1.5rem;
      font-weight: 700;
      margin-bottom: 1.2rem;
      color: var(--text-primary);
    }

    .resume-item {
      background: white;
      padding: 1.3rem;
      border-radius: 10px;
      margin-bottom: 1.2rem;
      border-left: 3px solid var(--accent);
      box-shadow: 0 2px 4px var(--shadow);
    }

    .resume-item h4 {
      font-size: 1.1rem;
      font-weight: 600;
      margin-bottom: 0.4rem;
      color: var(--text-primary);
    }

    .resume-item h5 {
      color: var(--text-secondary);
      margin-bottom: 0.8rem;
      font-weight: 500;
      font-size: 0.9rem;
    }

    .resume-item ul {
      margin-top: 0.8rem;
      padding-left: 1.3rem;
    }

    .resume-item li {
      margin-bottom: 0.4rem;
      color: var(--text-secondary);
      font-size: 0.9rem;
    }

    .info {
      background: white;
      padding: 1.5rem;
      border-radius: 12px;
      box-shadow: 0 4px 6px var(--shadow);
    }

    .info > div {
      margin-bottom: 1.5rem;
    }

    .info h3 {
      font-size: 1.1rem;
      font-weight: 600;
      margin-bottom: 0.4rem;
      color: var(--text-primary);
    }

    .info i {
      color: var(--accent);
      font-size: 1.3rem;
      margin-bottom: 0.4rem;
    }

    .info p,
    .info a {
      color: var(--text-secondary);
      text-decoration: none;
      font-size: 0.95rem;
    }

    .email-form {
      background: white;
      padding: 1.5rem;
      border-radius: 12px;
      box-shadow: 0 4px 6px var(--shadow);
    }

    .form-group {
      margin-bottom: 1.2rem;
    }

    .form-group label {
      display: block;
      margin-bottom: 0.4rem;
      font-weight: 500;
      font-size: 0.95rem;
      color: var(--text-primary);
    }

    .form-control {
      width: 100%;
      padding: 0.75rem;
      border: 1px solid var(--border);
      border-radius: 8px;
      font-family: inherit;
      font-size: 0.95rem;
      transition: border-color 0.3s ease;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--accent);
    }

    textarea.form-control {
      resize: vertical;
    }

    .btn {
      display: inline-block;
      padding: 0.75rem 1.8rem;
      background: var(--accent);
      color: white;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      text-decoration: none;
      font-weight: 500;
      font-size: 0.95rem;
      transition: all 0.3s ease;
    }

    .btn:hover {
      background: var(--accent-dark);
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    }

    footer {
      background: none;
      color: #003153;
      text-align: center;
      padding: 10px 0px;
      margin-left: 280px;
      font-size: 0.9rem;
    }

    .back-to-top {
      position: fixed;
      bottom: 1.5rem;
      right: 1.5rem;
      width: 44px;
      height: 44px;
      background: var(--accent);
      color: white;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      box-shadow: 0 4px 12px var(--shadow);
      opacity: 0;
      visibility: hidden;
      transform: translateY(20px);
      transition: all 0.3s ease;
    }

    .back-to-top.show {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .back-to-top:hover {
      box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
    }

    .cursor {
      display: inline-block;
      animation: blink 0.7s infinite;
      color: var(--text-primary, #000);
    }

    @keyframes blink {
      0%, 100% { opacity: 1; }
      50% { opacity: 0; }
    }

    .intro-quote {
      font-style: italic;
      font-size: 1rem;
      border-left: 4px solid var(--primary-color, #3498db);
      padding: 0.9rem 1.3rem;
      background-color: #f9f9f9;
      margin: 1.2rem 0;
      color: var(--text-secondary, #555);
      line-height: 1.6;
      border-radius: 6px;
      position: relative;
    }

    .intro-quote::before {
      content: """;
      font-size: 1.8rem;
      color: var(--primary-color, #3498db);
      position: absolute;
      top: 0;
      left: 10px;
    }

    .intro-quote::after {
      content: """;
      font-size: 1.8rem;
      color: var(--primary-color, #3498db);
      position: absolute;
      bottom: 0;
      right: 10px;
    }

    #checkmark-path {
      stroke-dasharray: 24;
      stroke-dashoffset: 24;
      animation: draw-check 0.9s ease forwards;
    }

    @keyframes draw-check {
      to {
        stroke-dashoffset: 0;
      }
    }

    @media (max-width: 1024px) {
      .mobile-nav-toggle {
        display: flex;
      }

      main,
      footer {
        margin-left: 0;
      }

      #hero {
        height: 150px;
      }

      #hero h1 {
        font-size: 2rem;
      }

      #hero p {
        font-size: 1.1rem;
      }

      .about-me-row {
        grid-template-columns: 1fr;
      }

      section {
        padding: 2.5rem 1.2rem;
      }

      .section-title h2 {
        font-size: 1.8rem;
      }

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

    @media (max-width: 768px) {
      .skills-content {
        grid-template-columns: 1fr;
      }

      #hero h1 {
        font-size: 1.75rem;
      }

      .project-card {
        max-width: 100%;
      }
    }