:root {
    --bg-1: #0a1129;
    --bg-2: #0f1a3d;
    --card: rgba(30, 58, 138, 0.15);
    --muted: #93c5fd;
    --accent-from: #2563eb;
    --accent-to: #3b82f6;
    --glass-border: rgba(59, 130, 246, 0.15);
    --text: #e0f2fe;
    --shadow: rgba(2, 8, 30, 0.6);
    --error: #ef4444;
    --success: #22c55e;
  }

  html, body {
    background-color: var(--bg-1);
    font-family: 'Poppins', system-ui, sans-serif;
    background: linear-gradient(180deg, var(--bg-1) 0%, var(--bg-2) 100%);
    color: var(--text);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  .nav-full {
    width: 100%;
    background: rgba(15, 26, 61, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
  }

  .nav-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .glass {
    background: var(--card);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
  }

  .gradient-text {
    background: linear-gradient(90deg, var(--accent-from), var(--accent-to));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  .muted {
    color: var(--muted);
    font-size: 0.875rem;
  }

  .btn-primary {
    background: linear-gradient(90deg, var(--accent-from), var(--accent-to));
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    font-size: 14px;
  }

  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
  }

  .btn-secondary {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid var(--glass-border);
    color: var(--text);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
    font-size: 14px;
  }

  .btn-secondary:hover {
    background: rgba(59, 130, 246, 0.2);
  }

  .btn-success {
    background: linear-gradient(90deg, #10b981, #059669);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease;
    font-size: 14px;
  }

  .btn-success:hover {
    transform: translateY(-2px);
  }

  .form-input {
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 0.875rem 1rem;
    color: var(--text);
    width: 100%;
    font-size: 14px;
    transition: border 0.2s ease;
  }

  .form-input:focus {
    outline: none;
    border-color: var(--accent-from);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
  }

  .hamburger {
    width: 40px;
    height: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    cursor: pointer;
    border-radius: 8px;
  }

  .hamburger .line {
    width: 20px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.3s ease;
  }

  .hamburger.active .line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

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

  .hamburger.active .line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .mobile-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(15, 26, 61, 0.98);
    border-right: 1px solid var(--glass-border);
    z-index: 999;
    transition: left 0.3s ease;
    overflow-y: auto;
  }

  .mobile-menu.open {
    left: 0;
  }

  .mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 998;
    display: none;
  }

  .mobile-overlay.active {
    display: block;
  }

  /* NOTIFICATION */
  .notification-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    max-width: 320px;
    width: auto;
  }

  @media (max-width: 640px) {
    .notification-container {
      top: 80px;
      right: 10px;
      left: auto;
      max-width: calc(100vw - 40px);
      width: auto;
    }
  }

  .notification {
    background: var(--card);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 10px 12px;
    margin-bottom: 8px;
    border-left: 4px solid;
    box-shadow: 0 5px 15px rgba(2, 8, 30, 0.4);
    animation: slideInRight 0.3s ease;
    max-width: 100%;
    font-size: 12px;
    line-height: 1.3;
  }

  .notification.success {
    border-left-color: #22c55e;
    background: rgba(34, 197, 94, 0.1);
  }

  .notification.error {
    border-left-color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
  }

  .notification.info {
    border-left-color: var(--accent-from);
    background: rgba(37, 99, 235, 0.1);
  }

  @keyframes slideInRight {
    from {
      opacity: 0;
      transform: translateX(100%);
    }
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }

  main {
    padding-top: 90px;
    padding-bottom: 3rem;
    min-height: calc(100vh - 180px);
    max-width: 1280px;
    margin: 0 auto;
    width: 100%;
    padding-left: 1rem;
    padding-right: 1rem;
  }

  @media (max-width: 768px) {
    main {
      padding-top: 80px;
      padding-left: 0.75rem;
      padding-right: 0.75rem;
    }
  }

  @media (max-width: 480px) {
    main {
      padding-left: 0.5rem;
      padding-right: 0.5rem;
    }
  }

  .upload-section {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.18), rgba(59, 130, 246, 0.1));
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: 12px;
  }

  .file-drop-area {
    border: 2px dashed rgba(59, 130, 246, 0.4);
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(59, 130, 246, 0.05);
  }

  .file-drop-area:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.6);
  }

  .file-drop-area.dragover {
    background: rgba(59, 130, 246, 0.15);
    border-color: var(--accent-from);
    transform: scale(1.02);
  }

  .file-preview {
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 1rem;
    margin-top: 1rem;
    background: rgba(0, 0, 0, 0.2);
  }

  .file-preview-image {
    max-height: 200px;
    object-fit: contain;
    border-radius: 8px;
    margin: 0 auto;
    display: block;
  }

  .files-list {
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 2rem;
    background: rgba(0, 0, 0, 0.15);
  }

  .file-item {
    background: rgba(30, 58, 138, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 0.75rem;
    transition: all 0.2s ease;
  }

  .file-item:hover {
    border-color: rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.15);
  }

  .file-icon {
    font-size: 1.5rem;
    margin-right: 12px;
  }

  .copy-btn {
    background: rgba(59, 130, 246, 0.2);
    border: 1px solid rgba(59, 130, 246, 0.4);
    color: #93c5fd;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .copy-btn:hover {
    background: rgba(59, 130, 246, 0.3);
  }

  .copy-btn.copied {
    background: #10b981;
    border-color: #10b981;
    color: white;
  }

  .loading-spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(59, 130, 246, 0.3);
    border-radius: 50%;
    border-top-color: #3b82f6;
    animation: spin 0.8s linear infinite;
  }

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

  .hidden {
    display: none !important;
  }

  .fade-in {
    animation: fadeIn 0.5s ease-out;
  }

  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
  }

  footer {
    max-width: 1280px;
    margin: 0 auto;
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .search-section {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(59, 130, 246, 0.05));
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 12px;
  }

  .stats-card {
    background: rgba(30, 58, 138, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
  }

  .stats-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--accent-from), var(--accent-to));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
  }

  .stats-label {
    font-size: 0.875rem;
    color: var(--muted);
    margin-top: 0.5rem;
  }

  @media (max-width: 640px) {
    .btn-primary,
    .btn-secondary,
    .btn-success {
      padding: 0.625rem 1rem;
      font-size: 13px;
      width: 100%;
    }
    
    .form-input {
      padding: 0.75rem 0.875rem;
      font-size: 13px;
    }
    
    .file-drop-area {
      padding: 2rem 1rem;
    }
  }