:root {
      --black: #121212;
      --dark-gray: #1a1a1a;
      --orange: #ff7b25;
      --orange-light: #ff9a56;
      --orange-dark: #e05a00;
      --white: #f0f0f0;
      --gray: #444;
    }
    
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    body {
      font-family: 'Montserrat', sans-serif;
      background-color: var(--black);
      color: var(--white);
      line-height: 1.6;
    }
    
    header {
      background-color: var(--dark-gray);
      padding: 1rem 0;
      position: sticky;
      top: 0;
      z-index: 100;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    }
    
    .nav {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 1rem;
      padding: 0 1rem;
    }
    
    .nav-link {
      color: var(--white);
      text-decoration: none;
      font-weight: 500;
      padding: 0.5rem 1rem;
      border-radius: 4px;
      transition: color 0.3s ease;
    }
    
    .nav-link:hover {
      color: var(--orange);
    }
    
    .container {
      display: block;
      max-width: 1200px;
      margin: 0 auto;
      padding: 2rem 1rem;
    }
    
    hr {
      border: none;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--orange), transparent);
      margin: 2rem 0;
    }
    
    .section {
      padding: 2rem;
      margin-bottom: 2rem;
      background-color: var(--dark-gray);
      border-radius: 8px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      display: none;
    }
    
    .section.active {
      display: block;
    }
    
    .profile-photo {
      width: 200px;
      height: 200px;
      margin: 0 auto 1.5rem;
      border-radius: 50%;
      overflow: hidden;
      border: 4px solid var(--orange);
    }
    
    .profile-photo img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    
    .profile-header {
      text-align: center;
    }
    
    .profile-header h1 {
      font-size: 2.5rem;
      margin-bottom: 0.5rem;
      color: var(--orange);
    }
    
    .profile-header h3 {
      font-size: 1.2rem;
      font-weight: 400;
      margin-bottom: 1rem;
      color: var(--orange-light);
    }
    
    .profile-header p {
      max-width: 800px;
      margin: 0 auto;
    }
    
    .social-links {
      display: flex;
      justify-content: center;
      gap: 1.5rem;
      flex-wrap: wrap;
      margin: 2rem 0;
    }
    
    .social-links a {
      display: inline-block;
      width: 100px;
      height: 100px;
      border-radius: 50%;
      background-color: var(--dark-gray);
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.3s ease;
      border: 2px solid transparent;
    }
    
    .social-links a:hover {
      border-color: var(--orange);
    }
    
    .social-links img {
      width: 50px;
      height: 50px;
      object-fit: contain;
    }
    
    .resource-box {
      background-color: var(--dark-gray);
      border-left: 4px solid var(--orange);
      padding: 1.5rem;
      margin: 1.5rem 0;
      border-radius: 0 8px 8px 0;
    }
    
    .resource-box h3 {
      color: var(--orange);
      margin-bottom: 0.5rem;
    }
    
    .resource-box a {
      color: var(--orange-light);
      text-decoration: none;
      display: inline-block;
      margin-top: 0.5rem;
    }
    
    .resource-box a:hover {
      text-decoration: underline;
    }
    
    .resource-box i {
      margin-right: 0.5rem;
    }
    
    .price-table {
      width: 100%;
      border-collapse: collapse;
      margin: 1.5rem 0;
    }
    
    .price-table th, .price-table td {
      padding: 1rem;
      text-align: left;
      border-bottom: 1px solid var(--gray);
    }
    
    .price-table th {
      background-color: var(--orange-dark);
      color: var(--white);
    }
    
    .price-table tr:nth-child(even) {
      background-color: rgba(255, 123, 37, 0.05);
    }
    
    footer {
      text-align: center;
      padding: 2rem 1rem;
      background-color: var(--dark-gray);
      margin-top: 2rem;
    }
    
    .footer-text {
      margin-bottom: 0.5rem;
      font-size: 0.9rem;
      color: var(--gray);
    }
    
    .language-switcher {
      position: fixed;
      top: 20px;
      right: 20px;
      z-index: 1000;
      display: flex;
      gap: 5px;
    }
    
    .language-btn {
      background: var(--dark-gray);
      color: var(--white);
      border: 1px solid var(--orange);
      border-radius: 4px;
      padding: 5px 10px;
      cursor: pointer;
      transition: all 0.3s ease;
      text-decoration: none;
      font-size: 14px;
    }
    
    .language-btn:hover {
      background: var(--orange);
      color: var(--black);
    }
    
    .language-btn.active {
      background: var(--orange);
      color: var(--black);
      font-weight: bold;
    }
    
    @media (max-width: 768px) {
      .nav {
        gap: 0.5rem;
      }
      
      .nav-link {
        padding: 0.5rem;
        font-size: 0.9rem;
      }
      
      .profile-photo {
        width: 150px;
        height: 150px;
      }
      
      .profile-header h1 {
        font-size: 2rem;
      }
      
      .section {
        padding: 1.5rem;
      }
      
      .language-switcher {
        top: 10px;
        right: 10px;
      }
    }
    
    @media (max-width: 480px) {
      .nav {
        flex-direction: column;
        align-items: center;
      }
      
      .section {
        padding: 1rem;
      }
    }