/* Reset و تنظیمات پایه */
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      font-family: 'Vazir', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    }
    
    body {
      background: linear-gradient(135deg, #f5f7fa 0%, #ffe6cc 100%);
      color: #333;
      line-height: 1.6;
      padding: 10px;
      min-height: 100vh;
      display: flex;
      justify-content: center;
      align-items: flex-start;
    }
    
    .container {
      width: 100%;
      max-width: 500px;
      background: rgba(255, 255, 255, 0.95);
      border-radius: 15px;
      padding: 20px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
      backdrop-filter: blur(5px);
      margin: 20px 0;
    }
    
    h1 {
      text-align: center;
      color: #ff8c00;
      margin-bottom: 20px;
      font-size: 1.5rem;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
    }
    
    h2 {
      margin: 25px 0 15px;
      color: #555;
      font-size: 1.2rem;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    
    textarea {
      width: 100%;
      height: 120px;
      padding: 15px;
      border: 2px solid #eee;
      border-radius: 10px;
      resize: none;
      font-size: 1rem;
      margin-bottom: 15px;
      transition: all 0.3s ease;
      background: rgba(255, 255, 255, 0.8);
    }
    
    textarea:focus {
      outline: none;
      border-color: #ff8c00;
      box-shadow: 0 0 0 3px rgba(255, 140, 0, 0.2);
    }
    
    button {
      width: 100%;
      padding: 12px;
      background: linear-gradient(to right, #ff8c00, #ffaa00);
      color: white;
      border: none;
      border-radius: 10px;
      font-size: 1rem;
      font-weight: bold;
      cursor: pointer;
      transition: all 0.3s ease;
      box-shadow: 0 3px 6px rgba(0, 0, 0, 0.1);
    }
    
    button:hover {
      transform: translateY(-2px);
      box-shadow: 0 5px 10px rgba(0, 0, 0, 0.15);
    }
    
    button:active {
      transform: translateY(0);
    }
    
    ul {
      list-style: none;
      margin-top: 20px;
    }
    
    .note-item {
      background: white;
      padding: 15px;
      margin-bottom: 12px;
      border-radius: 10px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
      position: relative;
      border-right: 4px solid #ff8c00;
      animation: fadeIn 0.3s ease-out;
    }
    
    .note-text {
      margin-bottom: 10px;
      word-break: break-word;
    }
    
    .note-date {
      font-size: 0.8rem;
      color: #777;
      margin-bottom: 10px;
    }
    
    .note-actions {
      display: flex;
      gap: 8px;
    }
    
    .note-actions button {
      flex: 1;
      padding: 8px;
      font-size: 0.8rem;
    }
    
    .delete-btn {
      background: linear-gradient(to right, #ff4d4d, #ff6666);
    }
    
    .edit-btn {
      background: linear-gradient(to right, #4CAF50, #66BB6A);
    }
    
    .empty-state {
      text-align: center;
      color: #777;
      padding: 20px;
      font-size: 0.9rem;
    }
    
    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(10px); }
      to { opacity: 1; transform: translateY(0); }
    }
    
    /* حالت موبایل */
    @media (max-width: 480px) {
      .container {
        padding: 15px;
        border-radius: 0;
      }
      
      h1 {
        font-size: 1.3rem;
      }
      
      textarea {
        height: 100px;
        padding: 12px;
      }
      
      .note-item {
        padding: 12px;
      }
    }