:root {
      --primary-color: #00bcd4;
      --primary-dark: #008fa1;
      --secondary-color: #6c63ff;
      --dark-bg: #121212;
      --dark-card: #1e1e2f;
      --light-bg: #f8f9fa;
      --light-card: #ffffff;
      --text-dark: #ffffff;
      --text-light: #333333;
      --text-muted: #aaaaaa;
      --success-color: #28a745;
      --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    }

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

    body {
      font-family: 'Poppins', sans-serif;
      margin: 0;
      padding: 0;
      color: var(--text-dark);
      overflow-x: hidden;
      background: var(--dark-bg);
      transition: var(--transition);
    }

    body.light-mode {
      background: var(--light-bg);
      color: var(--text-light);
    }

    body.light-mode .sidebar,
    body.light-mode header,
    body.light-mode .section,
    body.light-mode footer {
      background: var(--light-card);
      color: var(--text-light);
    }

    body.light-mode .sidebar ul li a,
    body.light-mode .profile p,
    body.light-mode .skill p,
    body.light-mode .project p,
    body.light-mode footer p {
      color: var(--text-light);
    }

    body.light-mode .skill,
    body.light-mode .project,
    body.light-mode .about-container {
      background: var(--light-card);
      color: var(--text-light);
    }

    body.light-mode .contact-form input,
    body.light-mode .contact-form textarea {
      background: var(--light-card);
      color: var(--text-light);
      border: 1px solid rgba(0, 0, 0, 0.2);
    }

    /* Particle.js container */
    #particles-js {
      position: fixed;
      width: 100%;
      height: 100%;
      top: 0;
      left: 0;
      z-index: -1;
    }

    /* Header */
    header {
      background: rgba(18, 18, 18, 0.9);
      padding: 20px;
      text-align: center;
      position: sticky;
      top: 0;
      z-index: 1000;
      backdrop-filter: blur(10px);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
      transition: var(--transition);
    }

    /* Menu Button */
    .menu-btn {
      position: fixed;
      top: 20px;
      left: 20px;
      font-size: 1.5rem;
      color: var(--text-dark);
      cursor: pointer;
      z-index: 1001;
      display: none;
      background: rgba(0, 188, 212, 0.2);
      width: 50px;
      height: 50px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: var(--transition);
    }

    .menu-btn:hover {
      background: rgba(0, 188, 212, 0.4);
      transform: scale(1.1);
    }

    /* Sidebar - Fixed blur issue */
    .sidebar {
      position: fixed;
      top: 0;
      left: -300px;
      width: 300px;
      height: 100%;
      background: rgba(30, 30, 47, 0.98);
      transition: var(--transition);
      z-index: 1000;
      overflow-y: auto;
      box-shadow: 5px 0 30px rgba(0, 0, 0, 0.3);
    }

    .sidebar.active {
      left: 0;
    }

    .sidebar ul {
      list-style: none;
      padding: 0;
      margin: 0;
      margin-top: 100px;
    }

    .sidebar ul li {
      margin: 15px 0;
      transform: translateX(-20px);
      opacity: 0;
      transition: var(--transition);
    }

    .sidebar.active ul li {
      transform: translateX(0);
      opacity: 1;
    }

    /* Staggered animation delays */
    .sidebar ul li:nth-child(1) { transition-delay: 0.1s; }
    .sidebar ul li:nth-child(2) { transition-delay: 0.2s; }
    .sidebar ul li:nth-child(3) { transition-delay: 0.3s; }
    .sidebar ul li:nth-child(4) { transition-delay: 0.4s; }
    .sidebar ul li:nth-child(5) { transition-delay: 0.5s; }
    .sidebar ul li:nth-child(6) { transition-delay: 0.6s; }

    .sidebar ul li a {
      color: var(--text-dark);
      text-decoration: none;
      font-size: 1.1rem;
      padding: 12px 30px;
      display: flex;
      align-items: center;
      transition: var(--transition);
      border-radius: 5px;
      margin: 0 15px;
      position: relative;
    }

    .sidebar ul li a i {
      margin-right: 15px;
      font-size: 1.2rem;
      width: 25px;
      text-align: center;
    }

    .sidebar ul li a:hover {
      background: rgba(0, 188, 212, 0.1);
      color: var(--primary-color);
      transform: translateX(5px);
    }

    /* Profile Section */
    .profile {
      text-align: center;
      padding: 150px 20px 80px;
      position: relative;
      overflow: hidden;
    }

    .profile img {
      width: 200px;
      height: 200px;
      border-radius: 50%;
      border: 3px solid var(--primary-color);
      margin-bottom: 20px;
      box-shadow: 0 0 30px rgba(0, 188, 212, 0.7);
      transition: var(--transition);
      object-fit: cover;
      animation: float 6s ease-in-out infinite;
    }

    .profile img:hover {
      transform: scale(1.05) rotate(5deg);
      box-shadow: 0 0 40px rgba(0, 188, 212, 0.9);
    }

    .profile h1 {
      font-size: 2.5rem;
      margin: 10px 0;
      font-family: 'Montserrat', sans-serif;
      text-shadow: 0 0 10px rgba(0, 188, 212, 0.5);
    }

    .typing-text {
      min-height: 60px;
      display: inline-block;
    }

    .typing-animation {
      font-size: 1.5rem;
      color: var(--primary-color);
      font-weight: 500;
      overflow: hidden;
      border-right: 3px solid var(--primary-color);
      white-space: nowrap;
      margin: 0 auto;
      letter-spacing: 2px;
      animation: 
        typing 3.5s steps(40, end),
        blink-caret .75s step-end infinite;
    }

    .social-links {
      margin: 30px 0;
      display: flex;
      justify-content: center;
      gap: 20px;
    }

    .social-links a {
      color: var(--primary-color);
      font-size: 1.5rem;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.1);
    }

    .social-links a:hover {
      color: var(--text-dark);
      background: var(--primary-color);
      transform: translateY(-5px) rotate(10deg);
      box-shadow: 0 5px 15px rgba(0, 188, 212, 0.4);
    }

    /* Sections */
    .section {
      padding: 80px 20px;
      background: rgba(30, 30, 47, 0.8);
      margin: 20px;
      border-radius: 15px;
      backdrop-filter: blur(10px);
      box-shadow: 0 0 30px rgba(0, 0, 0, 0.3);
      transition: var(--transition);
      transform: translateY(30px);
      opacity: 0;
    }

    .section.visible {
      transform: translateY(0);
      opacity: 1;
    }

    .section h2 {
      font-size: 2.2rem;
      margin-bottom: 30px;
      color: var(--primary-color);
      font-family: 'Montserrat', sans-serif;
      position: relative;
      display: inline-block;
    }

    .section h2::after {
      content: '';
      position: absolute;
      bottom: -10px;
      left: 0;
      width: 60px;
      height: 3px;
      background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
      border-radius: 3px;
      transition: var(--transition);
    }

    .section h2:hover::after {
      width: 100%;
    }

    /* About Container */
    .about-container {
      background: rgba(30, 30, 47, 0.8);
      color: var(--text-dark);
      border-radius: 15px;
      padding: 40px;
      width: 80%;
      max-width: 1000px;
      margin: 0 auto 40px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
      transition: var(--transition);
      transform: translateY(30px);
      opacity: 0;
    }

    .about-container.visible {
      transform: translateY(0);
      opacity: 1;
    }

    .about-title {
      color: var(--primary-color);
      font-size: 2.2rem;
      margin-bottom: 20px;
      font-family: 'Montserrat', sans-serif;
      position: relative;
    }

    .about-title::after {
      content: '';
      position: absolute;
      bottom: -10px;
      left: 0;
      width: 60px;
      height: 3px;
      background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
      border-radius: 3px;
      transition: var(--transition);
    }

    .about-title:hover::after {
      width: 100%;
    }

    .about-text {
      color: var(--text-muted);
      line-height: 1.8;
      font-size: 1.1rem;
      margin-bottom: 25px;
    }

    .highlight {
      color: var(--primary-color);
      font-weight: 600;
      position: relative;
    }

    .highlight::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary-color);
      transform: scaleX(0);
      transform-origin: right;
      transition: transform 0.3s ease;
    }

    .highlight:hover::after {
      transform: scaleX(1);
      transform-origin: left;
    }

    .bold {
      font-weight: 600;
    }

    .italic {
      font-style: italic;
    }

    .bold-italic {
      font-weight: 600;
      font-style: italic;
    }

    .expertise {
      color: var(--primary-color);
      font-size: 1.4rem;
      margin: 30px 0 15px;
      position: relative;
      padding-left: 25px;
      font-family: 'Montserrat', sans-serif;
    }

    .expertise::before {
      content: '';
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 10px;
      height: 10px;
      background: var(--primary-color);
      border-radius: 50%;
    }

    .expertise-list {
      list-style-type: none;
      padding: 0;
    }

    .list-item {
      color: var(--text-muted);
      margin: 15px 0;
      font-size: 1.1rem;
      padding-left: 30px;
      position: relative;
      transition: var(--transition);
    }

    .list-item:hover {
      transform: translateX(10px);
      color: var(--text-dark);
    }

    .list-item::before {
      content: '→';
      position: absolute;
      left: 0;
      color: var(--primary-color);
      font-weight: bold;
      transition: var(--transition);
    }

    .list-item:hover::before {
      transform: translateX(5px);
    }

    /* Skills Section */
    .skills-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
    }

    .skill {
      text-align: center;
      padding: 30px;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 15px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
      backdrop-filter: blur(5px);
    }

    .skill::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(45deg, transparent, rgba(0, 188, 212, 0.1), transparent);
      transform: translateX(-100%);
      transition: all 0.6s ease;
    }

    .skill:hover::before {
      transform: translateX(100%);
    }

    .skill:hover {
      transform: translateY(-10px);
      box-shadow: 0 15px 30px rgba(0, 188, 212, 0.2);
    }

    .skill i {
      font-size: 2.5rem;
      color: var(--primary-color);
      margin-bottom: 15px;
      transition: var(--transition);
    }

    .skill:hover i {
      transform: rotate(15deg) scale(1.2);
    }

    .skill h3 {
      margin: 15px 0;
      font-size: 1.3rem;
      font-family: 'Montserrat', sans-serif;
    }

    .skill-bar-container {
      width: 100%;
      margin-top: 20px;
    }

    .skill-info {
      display: flex;
      justify-content: space-between;
      margin-bottom: 5px;
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .skill-bar {
      width: 100%;
      height: 10px;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 5px;
      overflow: hidden;
      position: relative;
    }

    .skill-progress {
      height: 100%;
      background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
      border-radius: 5px;
      position: relative;
      width: 0;
      transition: width 2s ease-in-out;
    }

    .skill-progress::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
      animation: shine 2s infinite;
    }

    /* Projects Section */
    .projects-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
    }

    .project {
      background: rgba(255, 255, 255, 0.1);
      border-radius: 15px;
      overflow: hidden;
      transition: var(--transition);
      position: relative;
      backdrop-filter: blur(5px);
    }

    .project::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(135deg, transparent, rgba(0, 188, 212, 0.1), transparent);
      opacity: 0;
      transition: all 0.5s ease;
    }

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

    .project:hover {
      transform: translateY(-10px);
      box-shadow: 0 15px 30px rgba(0, 188, 212, 0.3);
    }

    .project-img-container {
      width: 100%;
      height: 200px;
      overflow: hidden;
    }

    .project img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

    .project:hover img {
      transform: scale(1.1);
    }

    .project-content {
      padding: 25px;
      position: relative;
    }

    .project h3 {
      margin: 15px 0;
      font-size: 1.3rem;
      color: var(--primary-color);
      font-family: 'Montserrat', sans-serif;
    }

    .project p {
      font-size: 1rem;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.6;
    }

    .project-links {
      margin-top: 15px;
      display: flex;
      gap: 15px;
    }

    .project-links a {
      color: var(--primary-color);
      text-decoration: none;
      transition: var(--transition);
      position: relative;
      padding-bottom: 5px;
      display: inline-flex;
      align-items: center;
      gap: 5px;
    }

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

    .project-links a:hover::after {
      width: 100%;
    }

    .project-links a:hover {
      color: var(--text-dark);
    }

    /* API Docs Buttons */
    .api-docs-button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 15px 30px;
      background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
      color: #fff;
      text-decoration: none;
      border-radius: 50px;
      font-size: 1.2rem;
      transition: var(--transition);
      margin-top: 20px;
      box-shadow: 0 4px 15px rgba(0, 188, 212, 0.3);
      position: relative;
      overflow: hidden;
      border: none;
      cursor: pointer;
      font-family: 'Montserrat', sans-serif;
    }

    .api-docs-button::before {
      content: '';
      position: absolute;
      top: 50%;
      left: 50%;
      width: 300%;
      height: 300%;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 50%;
      transition: all 0.4s ease;
      z-index: 0;
      transform: translate(-50%, -50%) scale(0);
    }

    .api-docs-button:hover::before {
      transform: translate(-50%, -50%) scale(1);
    }

    .api-docs-button:hover {
      background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
      transform: translateY(-5px) scale(1.05);
      box-shadow: 0 8px 25px rgba(0, 188, 212, 0.5);
    }

    .api-docs-button span {
      position: relative;
      z-index: 1;
    }

    /* Contact Form */
    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 20px;
      max-width: 600px;
      margin: 0 auto;
    }

    .form-group {
      position: relative;
    }

    .contact-form input,
    .contact-form textarea {
      width: 100%;
      padding: 15px 20px;
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.1);
      color: var(--text-dark);
      font-size: 1rem;
      transition: var(--transition);
      font-family: 'Poppins', sans-serif;
    }

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

    .contact-form input:focus,
    .contact-form textarea:focus {
      outline: none;
      border-color: var(--primary-color);
      box-shadow: 0 0 10px rgba(0, 188, 212, 0.3);
      background: rgba(255, 255, 255, 0.15);
    }

    .contact-form label {
      position: absolute;
      left: 20px;
      top: 15px;
      color: var(--text-muted);
      transition: var(--transition);
      pointer-events: none;
      background: rgba(30, 30, 47, 0.8);
      padding: 0 5px;
    }

    .contact-form input:focus + label,
    .contact-form textarea:focus + label,
    .contact-form input:not(:placeholder-shown) + label,
    .contact-form textarea:not(:placeholder-shown) + label {
      top: -10px;
      left: 15px;
      font-size: 0.8rem;
      color: var(--primary-color);
    }

    .contact-form button {
      padding: 15px;
      background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
      color: #fff;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      transition: var(--transition);
      font-size: 1rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 1px;
      font-family: 'Montserrat', sans-serif;
      margin-top: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
    }

    .contact-form button:hover {
      background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
      transform: translateY(-3px);
      box-shadow: 0 5px 15px rgba(0, 188, 212, 0.4);
    }

    /* Visitor Info Section */
    #visitor-ip {
      background: rgba(30, 30, 47, 0.9);
      padding: 30px;
      border-radius: 15px;
      margin: 20px;
      backdrop-filter: blur(10px);
      box-shadow: 0 0 25px rgba(0, 0, 0, 0.4);
      transition: var(--transition);
    }

    #visitor-ip:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }

    #visitor-ip h2 {
      font-size: 2rem;
      color: var(--primary-color);
      margin-bottom: 25px;
      position: relative;
      font-family: 'Montserrat', sans-serif;
    }

    #visitor-ip h2::after {
      content: '';
      position: absolute;
      bottom: -10px;
      left: 0;
      width: 60px;
      height: 3px;
      background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
      border-radius: 3px;
    }

    .info-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 20px;
    }

    .info-item {
      background: rgba(255, 255, 255, 0.05);
      padding: 15px;
      border-radius: 10px;
      transition: var(--transition);
    }

    .info-item:hover {
      background: rgba(255, 255, 255, 0.1);
      transform: translateY(-3px);
    }

    .info-item p {
      font-size: 1rem;
      color: var(--text-muted);
      margin-bottom: 5px;
    }

    .info-item span {
      font-weight: 600;
      color: var(--primary-color);
      word-break: break-all;
    }

    /* Footer */
    footer {
      background: rgba(30, 30, 47, 0.9);
      padding: 40px 20px;
      text-align: center;
      margin-top: 50px;
      backdrop-filter: blur(10px);
      position: relative;
    }

    footer::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    }

    footer p {
      margin: 0;
      font-size: 1rem;
      color: var(--text-muted);
    }

    .social-links-footer {
      margin: 20px 0;
      display: flex;
      justify-content: center;
      gap: 20px;
    }

    .social-links-footer a {
      color: var(--primary-color);
      font-size: 1.5rem;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.1);
    }

    .social-links-footer a:hover {
      color: var(--text-dark);
      background: var(--primary-color);
      transform: translateY(-5px) rotate(10deg);
      box-shadow: 0 5px 15px rgba(0, 188, 212, 0.4);
    }

    .back-to-top {
      display: inline-block;
      margin-top: 20px;
      color: var(--primary-color);
      text-decoration: none;
      font-weight: 600;
      transition: var(--transition);
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 5px;
    }

    .back-to-top:hover {
      color: var(--text-dark);
      transform: translateY(-3px);
    }

    /* Dark/Light Mode Toggle */
    .mode-toggle {
      position: fixed;
      top: 20px;
      right: 20px;
      font-size: 1.5rem;
      color: var(--text-dark);
      cursor: pointer;
      z-index: 1001;
      background: rgba(0, 188, 212, 0.2);
      width: 50px;
      height: 50px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: var(--transition);
    }

    .mode-toggle:hover {
      background: rgba(0, 188, 212, 0.4);
      transform: rotate(30deg) scale(1.1);
    }

    /* Current Time Display */
    #current-time {
      font-size: 1.5rem;
      font-weight: bold;
      color: var(--primary-color);
      background: rgba(0, 188, 212, 0.1);
      padding: 12px 25px;
      border-radius: 50px;
      display: inline-block;
      margin-top: 15px;
      box-shadow: 0 0 15px rgba(0, 188, 212, 0.4);
      transition: var(--transition);
      font-family: 'Montserrat', sans-serif;
    }

    #current-time:hover {
      transform: scale(1.05);
      box-shadow: 0 0 20px rgba(0, 188, 212, 0.6);
    }

    /* Animations */
    @keyframes fadeIn {
      from { opacity: 0; }
      to { opacity: 1; }
    }

    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(30px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    @keyframes typing {
      from { width: 0 }
      to { width: 100% }
    }

    @keyframes blink-caret {
      from, to { border-color: transparent }
      50% { border-color: var(--primary-color) }
    }

    @keyframes float {
      0% { transform: translateY(0px); }
      50% { transform: translateY(-15px); }
      100% { transform: translateY(0px); }
    }

    @keyframes pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    @keyframes rotate {
      from { transform: rotate(0deg); }
      to { transform: rotate(360deg); }
    }

    @keyframes bounce {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-20px); }
    }

    @keyframes wave {
      0% { transform: rotate(0deg); }
      10% { transform: rotate(14deg); }
      20% { transform: rotate(-8deg); }
      30% { transform: rotate(14deg); }
      40% { transform: rotate(-4deg); }
      50% { transform: rotate(10deg); }
      60% { transform: rotate(0deg); }
      100% { transform: rotate(0deg); }
    }

    @keyframes shine {
      0% { transform: translateX(-100%); }
      100% { transform: translateX(100%); }
    }

    /* Scrollbar styling */
    ::-webkit-scrollbar {
      width: 10px;
    }

    ::-webkit-scrollbar-track {
      background: rgba(30, 30, 47, 0.5);
    }

    ::-webkit-scrollbar-thumb {
      background: var(--primary-color);
      border-radius: 5px;
    }

    ::-webkit-scrollbar-thumb:hover {
      background: var(--secondary-color);
    }

    /* Responsive Design */
    @media (max-width: 992px) {
      .about-container {
        width: 90%;
        padding: 30px;
      }
      
      .section {
        padding: 60px 20px;
      }
    }

    @media (max-width: 768px) {
      .menu-btn {
        display: flex;
      }

      .sidebar {
        width: 280px;
      }

      .profile {
        padding: 120px 20px 60px;
      }

      .profile img {
        width: 180px;
        height: 180px;
      }

      .profile h1 {
        font-size: 2.2rem;
      }

      .typing-animation {
        font-size: 1.3rem;
      }

      .section {
        padding: 50px 15px;
        margin: 15px;
      }

      .about-container {
        width: 95%;
        padding: 25px 20px;
      }

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

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

      #visitor-ip {
        padding: 20px 15px;
        margin: 15px;
      }

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

    @media (max-width: 480px) {
      .profile img {
        width: 150px;
        height: 150px;
      }

      .profile h1 {
        font-size: 1.8rem;
      }

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

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

      .about-text {
        font-size: 1rem;
      }

      .expertise {
        font-size: 1.2rem;
      }

      .list-item {
        font-size: 1rem;
      }

      #current-time {
        font-size: 1.2rem;
        padding: 10px 20px;
      }

      .social-links a,
      .social-links-footer a {
        width: 45px;
        height: 45px;
        font-size: 1.3rem;
      }

      .mode-toggle {
        width: 45px;
        height: 45px;
        font-size: 1.3rem;
      }

      .api-docs-button {
        padding: 12px 25px;
        font-size: 1rem;
      }

      .contact-form input,
      .contact-form textarea {
        padding: 12px 15px;
      }
    }
    .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}