Minimal Search Bar with Category Dropdown

<style>
  .search-container {
    display: flex;
    max-width: 600px;
    margin: 20px auto;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    border-radius: 50px;
    overflow: hidden;
    background: white;
    transition: box-shadow 0.3s ease;
  }
  
  .search-container:focus-within {
    box-shadow: 0 4px 15px rgba(0,0,0,0.12);
  }
  
  .category-dropdown {
    position: relative;
    border-right: 1px solid #eee;
  }
  
  .category-dropdown select {
    appearance: none;
    background: transparent;
    border: none;
    padding: 14px 20px;
    padding-right: 38px;
    font-size: 14px;
    color: #555;
    cursor: pointer;
    font-family: -apple-system, BlinkMacSystemFont, sans-serif;
    outline: none;
  }
  
  .category-dropdown::after {
    content: "⌄";
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: #777;
    pointer-events: none;
  }
  
  .search-input {
    flex-grow: 1;
    padding: 14px 20px;
    border: none;
    font-size: 16px;
    outline: none;
    font-family: -apple-system, BlinkMacSystemFont, sans-serif;
    color: #333;
  }
  
  .search-input::placeholder {
    color: #999;
  }
  
  .search-button {
    background: #4a6cf7;
    border: none;
    color: white;
    padding: 0 28px;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.2s ease;
  }
  
  .search-button:hover {
    background: #3a5ae6;
  }
</style>

<div class="search-container">
  <div class="category-dropdown">
    <select>
      <option>All categories</option>
      <option>Electronics</option>
      <option>Fashion</option>
      <option>Home & Garden</option>
      <option>Books</option>
    </select>
  </div>
  <input type="text" class="search-input" placeholder="Search...">
  <button class="search-button">Search</button>
</div>