.counter-container {
      max-width: 600px;
      background: #fff;
      padding: 2rem;
      border-radius: 12px;
      box-shadow: 0 4px 8px rgba(0,0,0,0.05);
      text-align: center;
    }

    .counter-container input[type="date"] {
      display: block;
      padding: 0.75rem;
      width: 100%;
      max-width: 300px;
      margin: 0.5rem auto 1rem auto;
      border: 1px solid #ddd;
      border-radius: 6px;
      font-size: 1rem;
    }

    .checkbox-wrapper {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 0.5rem;
      margin: 1rem auto;
      font-size: 1rem;
    }

    .counter-container button {
      padding: 0.75rem 1.5rem;
      background: #0070f3;
      color: white;
      border: none;
      border-radius: 6px;
      font-weight: 600;
      cursor: pointer;
      transition: background 0.3s;
      margin-top: 1rem;
    }

    .counter-container button:hover {
      background: #0059c9;
    }

    .result {
      margin-top: 2rem;
      font-size: 1.5rem;
      font-weight: 700;
      color: #333;
    }