/* Base Styles */
    :root {
      --bg-main: #121212;
      --bg-card: #1a1a1a;
      --bg-input: #2a2a2a;
      --bg-button: #4834d4;
      --bg-button-hover: #3b28b3;
      --text-primary: #ffffff;
      --text-secondary: #b3b3b3;
      --border-color: #333333;
      --accent-color: #6c5ce7;
      --accent-color-hover: #5649c0;
      --danger-color: #e74c3c;
      --success-color: #2ecc71;
      --warning-color: #f39c12;
      --gradient-primary: linear-gradient(135deg, #6c5ce7 0%, #3b28b3 100%);
    }
    
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }
    
    body {
      background-color: var(--bg-main);
      color: var(--text-primary);
      line-height: 1.6;
      overflow-x: hidden;
    }
    
    a {
      color: var(--text-primary);
      text-decoration: none;
      transition: all 0.3s ease;
    }
    
    a:hover {
      color: var(--accent-color);
    }
    
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* Animations */
    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(10px); }
      to { opacity: 1; transform: translateY(0); }
    }
    
    @keyframes float {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-10px); }
    }
    
    @keyframes pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }
    
    @keyframes shimmer {
      0% { background-position: -200% 0; }
      100% { background-position: 200% 0; }
    }
    
    .animate-fade-in {
      animation: fadeIn 0.5s ease forwards;
    }
    
    .animate-float {
      animation: float 6s ease-in-out infinite;
    }
    
    .animate-pulse {
      animation: pulse 2s infinite;
    }
    
    .animate-shimmer {
      background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.05) 50%, rgba(255,255,255,0) 100%);
      background-size: 200% 100%;
      animation: shimmer 2s infinite;
    }
    
    /* Header & Navigation */
    header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: linear-gradient(to right, #111111, #1a1a1a);
      backdrop-filter: blur(8px);
      border-bottom: 1px solid #333;
      padding: 15px 0;
    }
    
    .navbar {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    
    .logo-container {
      display: flex;
      align-items: center;
      gap: 12px;
      cursor: pointer;
      transition: transform 0.2s;
    }
    
    .logo-container:hover {
      transform: scale(1.05);
    }
    
    .logo {
      width: 40px;
      height: 40px;
      background: var(--gradient-primary);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    
    .site-name {
      font-weight: 700;
      font-size: 1.5rem;
      background: linear-gradient(to right, #fff, #ccc);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    
    .user-menu {
      position: relative;
    }
    
    .user-trigger {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 6px 12px;
      background-color: rgba(51, 51, 51, 0.5);
      border-radius: 50px;
      cursor: pointer;
      border: 1px solid #444;
      transition: all 0.2s;
    }
    
    .user-trigger:hover {
      background-color: rgba(75, 75, 75, 0.5);
    }
    
    .avatar {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--gradient-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }
    
    .avatar img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    
    .dropdown-menu {
      position: absolute;
      top: 100%;
      right: 0;
      width: 180px;
      background-color: #222;
      border: 1px solid #444;
      border-radius: 8px;
      margin-top: 10px;
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
      opacity: 0;
      visibility: hidden;
      transform: translateY(10px);
      transition: all 0.3s;
      z-index: 100;
    }
    
    .dropdown-menu.active {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }
    
    .dropdown-menu li {
      list-style: none;
    }
    
    .dropdown-menu a {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 12px 16px;
      color: #ddd;
      transition: background-color 0.2s;
    }
    
    .dropdown-menu a:hover {
      background-color: #333;
      color: white;
    }
    
    .chevron {
      transition: transform 0.3s;
    }
    
    .chevron.active {
      transform: rotate(180deg);
    }
    
    /* Main Content */
    main {
      min-height: 100vh;
      padding: 120px 20px 60px;
    }
    
    .file-card {
      max-width: 800px;
      margin: 0 auto;
      background-color: var(--bg-card);
      border-radius: 12px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
      overflow: hidden;
      border: 1px solid #333;
      animation: fadeIn 0.5s ease;
    }
    
    .file-header {
      padding: 20px;
      background: linear-gradient(to right, #222, #333);
      border-bottom: 1px solid #444;
      display: flex;
      align-items: center;
      gap: 16px;
    }
    
    .file-icon {
      width: 56px;
      height: 56px;
      border-radius: 8px;
      background: var(--gradient-primary);
      display: flex;
      align-items: center;
      justify-content: center;
    }
    
    .file-title {
      flex: 1;
    }
    
    .file-title h1 {
      font-size: 1.5rem;
      margin-bottom: 4px;
      color: white;
    }
    
    .file-subtitle {
      font-size: 0.9rem;
      color: var(--text-secondary);
    }
    
    .file-info {
      padding: 20px;
    }
    
    .info-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 20px;
    }
    
    .info-item {
      animation-delay: calc(0.1s * var(--i));
    }
    
    .info-label {
      font-size: 0.85rem;
      color: var(--text-secondary);
      margin-bottom: 5px;
    }
    
    .info-value {
      font-size: 1.1rem;
      font-weight: 600;
    }
    
    .media-info {
      margin-top: 20px;
      border-top: 1px solid #333;
      padding-top: 20px;
    }
    
    .media-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 10px 0;
      cursor: pointer;
    }
    
    .media-content {
      overflow: hidden;
      max-height: 0;
      transition: max-height 0.3s ease;
    }
    
    .media-content.active {
      max-height: 500px;
    }
    
    .details-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 15px;
      padding: 15px 0;
    }
    
    .detail-item {
      display: flex;
      flex-direction: column;
    }
    
    .action-buttons {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 15px;
      margin-top: 30px;
      animation: fadeIn 0.5s ease;
      animation-delay: 0.3s;
      opacity: 0;
      animation-fill-mode: forwards;
    }
    
    .btn {
      padding: 12px 24px;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.2s ease;
      border: none;
      outline: none;
      font-size: 1rem;
    }
    
    .btn-primary {
      background: var(--bg-button);
      color: white;
    }
    
    .btn-primary:hover {
      background: var(--bg-button-hover);
      transform: translateY(-2px);
    }
    
    .btn-outline {
      background: transparent;
      color: white;
      border: 1px solid #555;
    }
    
    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.05);
      transform: translateY(-2px);
    }
    
    /* Footer */
    footer {
      background: linear-gradient(to right, #111111, #1a1a1a);
      border-top: 1px solid #333;
      padding: 40px 0 20px;
      margin-top: 60px;
    }
    
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 30px;
      margin-bottom: 40px;
    }
    
    .footer-section h3 {
      font-size: 1.2rem;
      margin-bottom: 15px;
      color: white;
    }
    
    .about-section {
      display: flex;
      flex-direction: column;
      gap: 15px;
    }
    
    .footer-logo {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    
    .footer-logo-icon {
      width: 32px;
      height: 32px;
      background: var(--gradient-primary);
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    
    .footer-logo-text {
      font-weight: 700;
      font-size: 1.2rem;
    }
    
    .footer-text {
      color: var(--text-secondary);
      font-size: 0.9rem;
      line-height: 1.6;
    }
    
    .links-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 10px;
    }
    
    .footer-link {
      color: var(--text-secondary);
      font-size: 0.9rem;
      transition: all 0.2s;
    }
    
    .footer-link:hover {
      color: var(--accent-color);
      transform: translateX(5px);
    }
    
    .social-links {
      display: flex;
      gap: 15px;
      margin-top: 15px;
    }
    
    .social-icon {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background-color: #333;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.3s;
    }
    
    .social-icon:hover {
      background-color: var(--accent-color);
      transform: translateY(-3px);
    }
    
    .copyright {
      text-align: center;
      padding-top: 20px;
      border-top: 1px solid #333;
      color: var(--text-secondary);
      font-size: 0.85rem;
    }
    
    /* Responsive */
    @media (max-width: 768px) {
      .file-header {
        flex-direction: column;
        align-items: flex-start;
      }
      
      .action-buttons {
        grid-template-columns: 1fr;
      }
    }