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

  body {
      font-family: 'Inter', sans-serif;
      overflow-x: hidden;
  }

  #preloader {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: #020617;
      z-index: 99999;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: opacity 0.6s ease, visibility 0.6s ease;
  }

  #preloader.hidden {
      opacity: 0;
      visibility: hidden;
  }

  .loader {
      width: 60px;
      height: 60px;
      position: relative;
  }

  .loader-circle {
      width: 100%;
      height: 100%;
      border: 4px solid transparent;
      border-top-color: #2563EB;
      border-radius: 50%;
      animation: spin 1s linear infinite;
      position: absolute;
  }

  .loader-circle:nth-child(2) {
      width: 40px;
      height: 40px;
      top: 10px;
      left: 10px;
      border-top-color: #06B6D4;
      animation-direction: reverse;
      animation-duration: 0.8s;
  }

  .loader-circle:nth-child(3) {
      width: 20px;
      height: 20px;
      top: 20px;
      left: 20px;
      border-top-color: #3B82F6;
      animation-duration: 0.6s;
  }

  @keyframes spin {
      to {
          transform: rotate(360deg);
      }
  }

  ::-webkit-scrollbar {
      width: 8px;
  }

  ::-webkit-scrollbar-track {
      background: #0F172A;
  }

  ::-webkit-scrollbar-thumb {
      background: #2563EB;
      border-radius: 4px;
  }

  .mobile-menu {
      transform: translateX(100%);
      transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .mobile-menu.active {
      transform: translateX(0);
  }

  .mobile-overlay {
      opacity: 0;
      visibility: hidden;
      transition: opacity 0.4s ease, visibility 0.4s ease;
  }

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

  .hamburger span {
      display: block;
      width: 24px;
      height: 2px;
      background: white;
      transition: all 0.3s ease;
      border-radius: 2px;
  }

  .hamburger.active span:nth-child(1) {
      transform: rotate(45deg) translate(5px, 5px);
  }

  .hamburger.active span:nth-child(2) {
      opacity: 0;
  }

  .hamburger.active span:nth-child(3) {
      transform: rotate(-45deg) translate(7px, -6px);
  }

  .dropdown-menu {
      opacity: 0;
      visibility: hidden;
      transform: translateY(10px);
      transition: all 0.3s ease;
  }

  .dropdown:hover .dropdown-menu {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
  }

  .mobile-dropdown-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
  }

  .mobile-dropdown-content.open {
      max-height: 300px;
  }

  .navbar-scrolled {
      background: rgba(2, 6, 23, 0.95) !important;
      backdrop-filter: blur(20px);
      box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  }

  .gradient-text {
      background: linear-gradient(135deg, #2563EB, #06B6D4);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
  }

  .section-divider {
      width: 60px;
      height: 4px;
      background: linear-gradient(90deg, #2563EB, #06B6D4);
      border-radius: 2px;
  }

  .back-to-top {
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
  }

  .back-to-top.visible {
      opacity: 1;
      visibility: visible;
  }

  .page-header {
      background: linear-gradient(135deg, #020617 0%, #0F172A 40%, #1E293B 100%);
      position: relative;
      overflow: hidden;
  }

  .page-header::before {
      content: '';
      position: absolute;
      top: -50%;
      right: -20%;
      width: 600px;
      height: 600px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(37, 99, 235, 0.15), transparent 70%);
  }

  .page-header::after {
      content: '';
      position: absolute;
      bottom: -30%;
      left: -10%;
      width: 400px;
      height: 400px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(6, 182, 212, 0.1), transparent 70%);
  }

  .particle {
      position: absolute;
      width: 4px;
      height: 4px;
      background: #2563EB;
      border-radius: 50%;
      opacity: 0.3;
      animation: pf 8s infinite ease-in-out;
  }

  @keyframes pf {

      0%,
      100% {
          transform: translate(0, 0);
          opacity: 0.3
      }

      50% {
          transform: translate(-20px, -40px);
          opacity: 0.6
      }
  }

  /* Filter Button */
  .filter-btn {
      transition: all 0.3s ease;
  }

  .filter-btn.active {
      background: linear-gradient(135deg, #2563EB, #06B6D4);
      color: white;
      border-color: transparent;
  }

  /* Portfolio Item */
  .portfolio-item {
      transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .portfolio-item.hide {
      opacity: 0;
      transform: scale(0.8);
      position: absolute;
      pointer-events: none;
  }

  .portfolio-item.show {
      opacity: 1;
      transform: scale(1);
      position: relative;
      pointer-events: auto;
  }

  .portfolio-card {
      transition: all 0.4s ease;
      overflow: hidden;
  }

  .portfolio-card:hover {
      transform: translateY(-10px);
      box-shadow: 0 30px 60px rgba(37, 99, 235, 0.15);
  }

  .portfolio-card:hover img {
      transform: scale(1.1);
  }

  .portfolio-card img {
      transition: transform 0.6s ease;
  }

  .portfolio-card .card-overlay {
      opacity: 0;
      transition: opacity 0.4s ease;
  }

  .portfolio-card:hover .card-overlay {
      opacity: 1;
  }

  .portfolio-card:hover .card-content {
      transform: translateY(0);
      opacity: 1;
  }

  .card-content {
      transform: translateY(20px);
      opacity: 0;
      transition: all 0.4s ease 0.1s;
  }

  /* Lightbox */
  .lightbox {
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.9);
      z-index: 99998;
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
  }

  .lightbox.active {
      opacity: 1;
      visibility: visible;
  }

  .lightbox img {
      max-width: 90%;
      max-height: 85vh;
      border-radius: 12px;
      transition: transform 0.3s ease;
  }

  /* Stats Card */
  .stats-card {
      transition: all 0.3s ease;
  }

  .stats-card:hover {
      transform: translateY(-5px);
      border-color: rgba(37, 99, 235, 0.3);
  }

  /* Counter animation */
  .counter-box {
      position: relative;
      overflow: hidden;
  }

  .counter-box::before {
      content: '';
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: linear-gradient(45deg, transparent, rgba(37, 99, 235, 0.05), transparent);
      animation: shimmer 3s infinite;
  }

  @keyframes shimmer {
      0% {
          transform: translateX(-100%) rotate(45deg)
      }

      100% {
          transform: translateX(100%) rotate(45deg)
      }
  }

  @keyframes ctaPulse {

      0%,
      100% {
          box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4)
      }

      50% {
          box-shadow: 0 0 0 20px rgba(37, 99, 235, 0)
      }
  }

  .cta-pulse {
      animation: ctaPulse 2.5s infinite;
  }

  /* Masonry effect for large screens */
  @media (min-width: 1024px) {
      .masonry-tall {
          grid-row: span 2;
      }
  }

  html, body {
  overflow-x: hidden;
}