/* ===== Global Styles ===== */
    :root {
      --primary-color: #4CAF50;
      --secondary-color: #2196F3;
      --accent-color: #FF5722;
      --dark-color: #212121;
      --light-color: #f5f5f5;
      --text-color: #424242;
      --white: #ffffff;
      --shadow: 0 4px 12px rgba(0,0,0,0.1);
      --transition: all 0.3s ease;
      --section-padding: 100px 0;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: 'Poppins', sans-serif;
      line-height: 1.6;
      color: var(--text-color);
      background-color: var(--light-color);
      overflow-x: hidden;
      position: relative;
    }

    .container {
      width: 90%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
    }

    section {
      padding: var(--section-padding);
      position: relative;
    }

    h1, h2, h3, h4 {
      color: var(--dark-color);
      font-weight: 600;
      margin-bottom: 20px;
      line-height: 1.3;
    }

    p {
      margin-bottom: 15px;
      font-size: 1.05rem;
    }

    a {
      color: var(--secondary-color);
      text-decoration: none;
      transition: var(--transition);
    }

    a:hover {
      color: var(--primary-color);
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    .btn {
      display: inline-block;
      padding: 12px 30px;
      background-color: var(--primary-color);
      color: var(--white);
      border-radius: 50px;
      font-weight: 500;
      text-align: center;
      transition: var(--transition);
      border: none;
      cursor: pointer;
      font-size: 16px;
      box-shadow: var(--shadow);
    }

    .btn:hover {
      transform: translateY(-3px);
      box-shadow: 0 8px 15px rgba(0,0,0,0.2);
      background-color: #388E3C;
    }

    .btn-secondary {
      background-color: var(--secondary-color);
    }

    .btn-secondary:hover {
      background-color: #1976D2;
    }

    .btn-accent {
      background-color: var(--accent-color);
    }

    .btn-accent:hover {
      background-color: #E64A19;
    }

    .text-center {
      text-align: center;
    }

    .section-title {
      font-size: 2.5rem;
      text-align: center;
      margin-bottom: 50px;
      position: relative;
    }

    .section-title::after {
      content: '';
      display: block;
      width: 80px;
      height: 4px;
      background-color: var(--primary-color);
      margin: 15px auto;
      border-radius: 2px;
    }

    /* ===== Header & Navigation ===== */
    header {
      background-color: var(--white);
      box-shadow: var(--shadow);
      position: fixed;
      width: 100%;
      top: 0;
      z-index: 1000;
      padding: 15px 0;
      transition: var(--transition);
    }

    header.scrolled {
      padding: 10px 0;
      box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }

    .header-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .logo {
      font-size: 1.8rem;
      font-weight: 700;
      color: var(--primary-color);
      display: flex;
      align-items: center;
    }

    .logo span {
      color: var(--secondary-color);
    }

    .logo-icon {
      margin-right: 8px;
      font-size: 1.5rem;
    }

    /* Mobile Menu */
    .menu-toggle {
      cursor: pointer;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      width: 30px;
      height: 22px;
      z-index: 1001;
      position: relative;
    }

    .menu-toggle .bar {
      height: 3px;
      width: 100%;
      background-color: var(--dark-color);
      transition: var(--transition);
      transform-origin: center;
    }

    .menu-toggle.active .bar:nth-child(1) {
      transform: rotate(45deg) translate(5px, 6px);
    }

    .menu-toggle.active .bar:nth-child(2) {
      opacity: 0;
    }

    .menu-toggle.active .bar:nth-child(3) {
      transform: rotate(-45deg) translate(5px, -6px);
    }

    nav {
      position: fixed;
      top: 0;
      right: -100%;
      width: 80%;
      max-width: 300px;
      height: 100vh;
      background-color: var(--white);
      padding: 80px 30px;
      box-shadow: -5px 0 15px rgba(0,0,0,0.1);
      transition: right 0.4s ease;
      z-index: 1000;
    }

    nav.show {
      right: 0;
    }

    nav a {
      display: block;
      padding: 12px 0;
      font-size: 1.1rem;
      border-bottom: 1px solid #eee;
      color: var(--dark-color);
      position: relative;
    }

    nav a:hover {
      color: var(--primary-color);
    }

    nav a::before {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--primary-color);
      transition: var(--transition);
    }

    nav a:hover::before {
      width: 30px;
    }

    /* Desktop Navigation */
    @media (min-width: 992px) {
      .menu-toggle {
        display: none;
      }

      nav {
        position: static;
        width: auto;
        height: auto;
        background: transparent;
        padding: 0;
        box-shadow: none;
        display: flex;
        align-items: center;
      }

      nav a {
        padding: 0 15px;
        border-bottom: none;
        position: relative;
      }

      nav a::after {
        content: '';
        position: absolute;
        bottom: -5px;
        left: 15px;
        width: 0;
        height: 2px;
        background-color: var(--primary-color);
        transition: var(--transition);
      }

      nav a:hover::after {
        width: calc(100% - 30px);
      }

      nav a:last-child {
        padding-right: 0;
      }
    }

    /* ===== Hero Section ===== */
    .hero-section {
      background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://files.catbox.moe/zfgqtu.jpg') no-repeat center center/cover;
      height: 100vh;
      min-height: 600px;
      display: flex;
      align-items: center;
      text-align: center;
      color: var(--white);
      padding-top: 80px;
      position: relative;
    }

    .hero-content {
      max-width: 800px;
      margin: 0 auto;
      padding: 0 20px;
      position: relative;
      z-index: 1;
    }

    .hero-content h1 {
      font-size: 2.8rem;
      margin-bottom: 20px;
      color: var(--white);
      animation: fadeIn 1s ease-out;
      text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    }

    .hero-content p {
      font-size: 1.3rem;
      margin-bottom: 30px;
      opacity: 0.9;
      animation: fadeIn 1s ease-out 0.3s;
      animation-fill-mode: both;
      text-shadow: 0 1px 2px rgba(0,0,0,0.3);
    }

    .hero-buttons {
      display: flex;
      justify-content: center;
      gap: 15px;
      flex-wrap: wrap;
    }

    .hero-scroll-down {
      position: absolute;
      bottom: 30px;
      left: 50%;
      transform: translateX(-50%);
      color: var(--white);
      font-size: 1.5rem;
      animation: bounce 2s infinite;
      cursor: pointer;
      z-index: 1;
    }

    /* ===== Stats Section ===== */
    .stats-section {
      background: linear-gradient(135deg, var(--primary-color) 0%, #388E3C 100%);
      color: var(--white);
      padding: 60px 0;
      position: relative;
      overflow: hidden;
    }

    .stats-section::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
      opacity: 0.1;
    }

    .stats-container {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 30px;
      text-align: center;
      position: relative;
    }

    .stat-item {
      padding: 20px;
      position: relative;
      z-index: 1;
    }

    .stat-number {
      font-size: 3rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--white);
    }

    .stat-number.counter {
      display: inline-block;
    }

    .stat-label {
      font-size: 1.1rem;
      opacity: 0.9;
    }

    /* ===== About Section ===== */
    .about-section {
      background-color: var(--white);
      position: relative;
    }

    .about-content {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 40px;
    }

    .about-text {
      flex: 1;
      min-width: 300px;
    }

    .about-image {
      flex: 1;
      min-width: 300px;
      text-align: center;
      position: relative;
    }

    .profile-image {
      max-width: 100%;
      border-radius: 10px;
      box-shadow: var(--shadow);
      transition: var(--transition);
    }

    .slideshow-container {
      position: relative;
      max-width: 400px;
      margin: 0 auto;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    }

    .slide {
      display: none;
      animation: fade 1.5s;
    }

    .slide.active {
      display: block;
    }

    .slide-indicators {
      position: absolute;
      bottom: 15px;
      left: 0;
      right: 0;
      display: flex;
      justify-content: center;
      gap: 8px;
      z-index: 2;
    }

    .slide-indicator {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background-color: rgba(255,255,255,0.5);
      cursor: pointer;
      transition: var(--transition);
    }

    .slide-indicator.active {
      background-color: var(--white);
      transform: scale(1.2);
    }

    /* ===== Skills Section ===== */
    .skills-section {
      background-color: #f9f9f9;
      position: relative;
    }

    .skills-container {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
    }

    @media (min-width: 1200px) {
      .skills-container {
        grid-template-columns: repeat(4, 1fr);
      }
    }

    .skill-card {
      background-color: var(--white);
      border-radius: 10px;
      padding: 30px;
      box-shadow: var(--shadow);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .skill-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 5px;
      background-color: var(--primary-color);
    }

    .skill-card:nth-child(2)::before {
      background-color: var(--secondary-color);
    }

    .skill-card:nth-child(3)::before {
      background-color: var(--accent-color);
    }

    .skill-card:nth-child(4)::before {
      background-color: #9C27B0;
    }

    .skill-card:hover {
      transform: translateY(-10px);
      box-shadow: 0 15px 30px rgba(0,0,0,0.1);
    }

    .skill-card h3 {
      color: var(--dark-color);
      margin-bottom: 20px;
      text-align: center;
      font-size: 1.5rem;
      position: relative;
      padding-bottom: 10px;
    }

    .skill-card h3::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 50px;
      height: 2px;
      background-color: var(--primary-color);
    }

    .skill-card:nth-child(2) h3::after {
      background-color: var(--secondary-color);
    }

    .skill-card:nth-child(3) h3::after {
      background-color: var(--accent-color);
    }

    .skill-card:nth-child(4) h3::after {
      background-color: #9C27B0;
    }

    .skill-list {
      list-style-type: none;
    }

    .skill-list li {
      margin-bottom: 12px;
      position: relative;
      padding-left: 30px;
    }

    .skill-list li::before {
      content: '\f058';
      font-family: 'Font Awesome 6 Free';
      font-weight: 900;
      position: absolute;
      left: 0;
      color: var(--primary-color);
    }

    .skill-card:nth-child(2) .skill-list li::before {
      color: var(--secondary-color);
    }

    .skill-card:nth-child(3) .skill-list li::before {
      color: var(--accent-color);
    }

    .skill-card:nth-child(4) .skill-list li::before {
      color: #9C27B0;
    }

    /* ===== Projects Section ===== */
    .projects-section {
      background-color: var(--white);
      position: relative;
    }

    .projects-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
    }

    @media (min-width: 1200px) {
      .projects-grid {
        grid-template-columns: repeat(4, 1fr);
      }
    }

    .project-card {
      background-color: var(--white);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: var(--transition);
      position: relative;
      display: flex;
      flex-direction: column;
    }

    .project-card:hover {
      transform: translateY(-10px);
      box-shadow: 0 15px 30px rgba(0,0,0,0.15);
    }

    .project-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .project-card:hover .project-image {
      transform: scale(1.05);
    }

    .project-info {
      padding: 25px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .project-info h3 {
      color: var(--primary-color);
      margin-bottom: 10px;
      font-size: 1.3rem;
    }

    .project-tech {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
      margin-bottom: 15px;
    }

    .tech-tag {
      background-color: #e0e0e0;
      padding: 4px 12px;
      border-radius: 50px;
      font-size: 0.8rem;
      color: var(--dark-color);
    }

    .project-links {
      margin-top: auto;
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }

    /* ===== Testimonials Section ===== */
    .testimonials-section {
      background-color: #f9f9f9;
      position: relative;
    }

    .testimonials-slider {
      position: relative;
      max-width: 1000px;
      margin: 0 auto;
      overflow: hidden;
    }

    .testimonials-container {
      display: flex;
      transition: transform 0.5s ease;
    }

    .testimonial-card {
      min-width: 100%;
      background-color: var(--white);
      padding: 40px;
      border-radius: 10px;
      box-shadow: var(--shadow);
      position: relative;
      flex-shrink: 0;
    }

    .testimonial-card::before {
      content: '\201C';
      font-family: Georgia, serif;
      font-size: 5rem;
      color: rgba(76, 175, 80, 0.1);
      position: absolute;
      top: 10px;
      left: 20px;
      line-height: 1;
    }

    .testimonial-content {
      margin-bottom: 20px;
      font-style: italic;
      color: var(--text-color);
      position: relative;
      z-index: 1;
      font-size: 1.1rem;
    }

    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 15px;
    }

    .author-avatar {
      width: 60px;
      height: 60px;
      border-radius: 50%;
      object-fit: cover;
      border: 3px solid var(--primary-color);
    }

    .author-info h4 {
      margin-bottom: 5px;
      color: var(--primary-color);
    }

    .author-info p {
      font-size: 0.9rem;
      opacity: 0.8;
    }

    .slider-controls {
      display: flex;
      justify-content: center;
      gap: 15px;
      margin-top: 30px;
    }

    .slider-btn {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background-color: var(--white);
      color: var(--primary-color);
      border: 2px solid var(--primary-color);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: var(--transition);
    }

    .slider-btn:hover {
      background-color: var(--primary-color);
      color: var(--white);
    }

    .slider-dots {
      display: flex;
      justify-content: center;
      gap: 10px;
      margin-top: 20px;
    }

    .slider-dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background-color: #ccc;
      cursor: pointer;
      transition: var(--transition);
    }

    .slider-dot.active {
      background-color: var(--primary-color);
      transform: scale(1.2);
    }

    /* ===== Contact Section ===== */
    .contact-section {
      background-color: #f9f9f9;
      position: relative;
    }

    .contact-container {
      display: flex;
      flex-wrap: wrap;
      gap: 40px;
    }

    .contact-info {
      flex: 1;
      min-width: 300px;
    }

    .contact-info h3 {
      color: var(--primary-color);
      margin-bottom: 20px;
    }

    .contact-details {
      margin-bottom: 30px;
    }

    .contact-item {
      display: flex;
      align-items: center;
      margin-bottom: 15px;
    }

    .contact-item i {
      width: 40px;
      height: 40px;
      background-color: var(--primary-color);
      color: var(--white);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-right: 15px;
      flex-shrink: 0;
    }

    .contact-form {
      flex: 1;
      min-width: 300px;
      background-color: var(--white);
      padding: 30px;
      border-radius: 10px;
      box-shadow: var(--shadow);
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      margin-bottom: 8px;
      font-weight: 500;
    }

    .form-group input,
    .form-group textarea {
      width: 100%;
      padding: 12px 15px;
      border: 1px solid #ddd;
      border-radius: 5px;
      font-size: 16px;
      font-family: 'Poppins', sans-serif;
      transition: var(--transition);
    }

    .form-group input:focus,
    .form-group textarea:focus {
      border-color: var(--primary-color);
      outline: none;
      box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.2);
    }

    textarea {
      resize: vertical;
      min-height: 150px;
    }

    /* ===== Footer ===== */
    footer {
      background-color: var(--dark-color);
      color: var(--white);
      padding: 50px 0 20px;
      position: relative;
    }

    .footer-content {
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .footer-logo {
      font-size: 2rem;
      font-weight: 700;
      color: var(--white);
      margin-bottom: 20px;
      display: flex;
      align-items: center;
    }

    .footer-logo span {
      color: var(--primary-color);
    }

    .footer-logo-icon {
      margin-right: 10px;
    }

    .social-links {
      display: flex;
      gap: 20px;
      margin: 20px 0;
    }

    .social-links a {
      width: 40px;
      height: 40px;
      background-color: rgba(255,255,255,0.1);
      color: var(--white);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: var(--transition);
    }

    .social-links a:hover {
      background-color: var(--primary-color);
      transform: translateY(-5px);
    }

    .copyright {
      margin-top: 30px;
      font-size: 0.9rem;
      opacity: 0.8;
      text-align: center;
    }

    /* ===== Back to Top Button ===== */
    .back-to-top {
      position: fixed;
      bottom: 30px;
      right: 30px;
      width: 50px;
      height: 50px;
      background-color: var(--primary-color);
      color: var(--white);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      cursor: pointer;
      opacity: 0;
      visibility: hidden;
      transition: var(--transition);
      z-index: 999;
      box-shadow: var(--shadow);
    }

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

    .back-to-top:hover {
      background-color: #388E3C;
      transform: translateY(-5px);
    }

    /* ===== Animations ===== */
    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(20px); }
      to { opacity: 1; transform: translateY(0); }
    }

    @keyframes fade {
      from { opacity: 0.4; }
      to { opacity: 1; }
    }

    @keyframes bounce {
      0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
      40% { transform: translateY(-20px) translateX(-50%); }
      60% { transform: translateY(-10px) translateX(-50%); }
    }

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

    /* ===== Loading Screen ===== */
    .loading-screen {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-color: var(--primary-color);
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      z-index: 9999;
      transition: opacity 0.5s ease;
    }

    .loading-screen.hidden {
      opacity: 0;
      pointer-events: none;
    }

    .loading-spinner {
      width: 50px;
      height: 50px;
      border: 5px solid rgba(255,255,255,0.3);
      border-radius: 50%;
      border-top-color: var(--white);
      animation: spin 1s ease-in-out infinite;
      margin-bottom: 20px;
    }

    .loading-text {
      color: var(--white);
      font-size: 1.2rem;
    }

    /* ===== Tooltip ===== */
    .tooltip {
      position: relative;
      display: inline-block;
    }

    .tooltip .tooltip-text {
      visibility: hidden;
      width: 120px;
      background-color: var(--dark-color);
      color: var(--white);
      text-align: center;
      border-radius: 6px;
      padding: 5px;
      position: absolute;
      z-index: 1;
      bottom: 125%;
      left: 50%;
      transform: translateX(-50%);
      opacity: 0;
      transition: opacity 0.3s;
      font-size: 0.8rem;
    }

    .tooltip .tooltip-text::after {
      content: "";
      position: absolute;
      top: 100%;
      left: 50%;
      margin-left: -5px;
      border-width: 5px;
      border-style: solid;
      border-color: var(--dark-color) transparent transparent transparent;
    }

    .tooltip:hover .tooltip-text {
      visibility: visible;
      opacity: 1;
    }

    /* ===== Mobile Responsive Adjustments ===== */
    @media (max-width: 991px) {
      :root {
        --section-padding: 80px 0;
      }

      .section-title {
        font-size: 2rem;
        margin-bottom: 40px;
      }

      .hero-content h1 {
        font-size: 2.2rem;
      }

      .hero-content p {
        font-size: 1.1rem;
      }

      .btn {
        padding: 10px 25px;
        font-size: 15px;
      }
    }

    @media (max-width: 767px) {
      :root {
        --section-padding: 70px 0;
      }

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

      .hero-content h1 {
        font-size: 1.8rem;
      }

      .hero-buttons {
        flex-direction: column;
        align-items: center;
      }

      .btn {
        width: 100%;
        max-width: 250px;
        margin-bottom: 10px;
      }

      .about-content, .contact-container {
        flex-direction: column;
      }

      .about-image {
        order: -1;
        margin-bottom: 30px;
      }

      .testimonial-card {
        padding: 30px 20px;
      }
      
      .testimonial-content {
        font-size: 1rem;
      }
      
      .author-avatar {
        width: 50px;
        height: 50px;
      }

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

    @media (max-width: 480px) {
      :root {
        --section-padding: 60px 0;
      }

      .section-title {
        font-size: 1.6rem;
      }

      .hero-content h1 {
        font-size: 1.6rem;
      }

      .hero-content p {
        font-size: 1rem;
      }

      .project-links {
        flex-direction: column;
      }

      .btn {
        width: 100%;
      }

      nav {
        width: 85%;
      }
    }