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

    body {
      font-family: 'Arial', sans-serif;
      background: #1a1a1a;
      color: white;
      overflow-x: hidden;
      /* Only hide horizontal overflow */
      overflow-y: auto;
      /* Allow vertical scrolling */
      height: auto;
      /* Let height grow with content */
      min-height: 100vh;
      /* Ensure full height at least 1 screen */
    }


    /* Toggle Button - Sticky in top right */
    .navbar-toggle {
      position: fixed;
      top: 20px;
      right: 20px;
      width: 50px;
      height: 50px;
      background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
      border: none;
      border-radius: 12px;
      color: white;
      font-size: 20px;
      cursor: pointer;
      z-index: 1001;
      transition: all 0.3s ease;
      box-shadow: 0 4px 15px rgba(79, 172, 254, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .navbar-toggle:hover {
      transform: scale(1.05);
      box-shadow: 0 6px 20px rgba(79, 
      172, 254, 0.5);
    }

    .navbar-toggle:active {
      transform: scale(0.95);
    }

    /* Navbar */
    .navbar {
      width: 300px;
      background: linear-gradient(180deg, #2a2a2a 0%, #1e1e1e 100%);
      padding: 30px 0;
      display: flex;
      flex-direction: column;
      align-items: center;
      box-shadow: 3px 0 15px rgba(0, 0, 0, 0.3);
      position: fixed;
      left: 0;
      top: 0;
      height: 100vh;
      overflow: hidden;
      z-index: 1000;
      transform: translateX(0);
      transition: transform 0.3s ease;
    }

    .navbar.hidden {
      transform: translateX(-100%);
    }

    .navbar::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: linear-gradient(90deg, #4facfe 0%, #00f2fe 100%);
    }

    .profile-section {
      display: flex;
      flex-direction: column;
      align-items: center;
      margin-bottom: 40px;
    }

    .profile-img {
      width: 60px;
      height: 60px;
      border-radius: 50%;
      border: 2px solid #4facfe;
      margin-bottom: 10px;
      transition: all 0.3s ease;
      box-shadow: 0 3px 15px rgba(79, 172, 254, 0.3);
    }

    .profile-img:hover {
      transform: scale(1.05);
      box-shadow: 0 8px 25px rgba(79, 172, 254, 0.5);
    }

    .profile-name {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 5px;
      background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .social-icons {
      display: flex;
      gap: 12px;
      margin-bottom: 30px;
    }

    .social-icon {
      width: 35px;
      height: 35px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ccc;
      text-decoration: none;
      transition: all 0.3s ease;
      backdrop-filter: blur(10px);
      font-size: 14px;
    }

    .social-icon:hover {
      background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
      color: white;
      transform: translateY(-3px);
      box-shadow: 0 5px 15px rgba(79, 172, 254, 0.4);
    }

    .nav-menu {
      width: 100%;
      padding: 0 20px;
    }

    .nav-item {
      display: flex;
      align-items: center;
      padding: 15px 20px;
      margin-bottom: 5px;
      border-radius: 12px;
      color: #ccc;
      text-decoration: none;
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }

    .nav-item::before {
      content: '';
      position: absolute;
      left: 0;
      top: 0;
      height: 100%;
      width: 3px;
      background: linear-gradient(180deg, #4facfe 0%, #00f2fe 100%);
      transform: scaleY(0);
      transition: transform 0.3s ease;
    }

    .nav-item:hover {
      background: rgba(79, 172, 254, 0.1);
      color: #4facfe;
      transform: translateX(5px);
    }

    .nav-item:hover::before {
      transform: scaleY(1);
    }

    .nav-item.active {
      background: linear-gradient(135deg, rgba(79, 172, 254, 0.2) 0%, rgba(0, 242, 254, 0.1) 100%);
      color: #4facfe;
      transform: translateX(5px);
    }

    .nav-item.active::before {
      transform: scaleY(1);
    }

    .nav-icon {
      margin-right: 12px;
      font-size: 16px;
      width: 18px;
    }

    .nav-text {
      font-size: 14px;
      font-weight: 500;
    }

    /* Main Content */
    .main-content {
      margin-left: 280px;
      padding: 20px;
      height: 100vh;
      background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="0.5" fill="%23333" opacity="0.1"/><circle cx="80" cy="20" r="0.5" fill="%23333" opacity="0.1"/><circle cx="40" cy="60" r="0.5" fill="%23333" opacity="0.1"/><circle cx="90" cy="90" r="0.5" fill="%23333" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') #1a1a1a;
      transition: margin-left 0.3s ease;
    }

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

    .demo-content {
      display: flex;
      align-items: center;
      justify-content: center;
      height: calc(100vh - 40px);
      text-align: center;
      color: #666;
    }

    /* Overlay for mobile */
    .navbar-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      background: rgba(0, 0, 0, 0.5);
      z-index: 999;
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
    }

    .navbar-overlay.active {
      opacity: 1;
      visibility: visible;
    }

    /* Responsive */
    @media (max-width: 1100px) {
      .navbar {
        width: 250px;
      }

      .profile-name {
        font-size: 20px;
      }

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

      .navbar-toggle {
        top: 15px;
        right: 15px;
        width: 45px;
        height: 45px;
        font-size: 18px;
      }
    }