body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background-color: #f4f6f8;
      display: flex;
      justify-content: center;
      align-items: flex-start;
      height: 100vh;
      padding-top: 50px;
    }

    .container {
      background: #fff;
      border-radius: 12px;
      box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
      padding: 20px 25px;
      width: 360px;
    }

    h2 {
      text-align: center;
      color: #333;
      margin-bottom: 15px;
    }

    .input-area {
      display: flex;
      gap: 8px;
      justify-content: space-between;
    }

    input[type="text"] {
      flex: 1;
      padding: 8px 10px;
      font-size: 15px;
      border: 1px solid #ccc;
      border-radius: 6px;
    }

    button {
      background-color: #2563eb;
      color: white;
      border: none;
      padding: 8px 14px;
      border-radius: 6px;
      cursor: pointer;
      transition: background 0.3s;
    }

    button:hover {
      background-color: #1e40af;
    }

    ul {
      list-style: none;
      padding: 0;
      margin-top: 20px;
    }

    li {
      background: #f1f5f9;
      margin-bottom: 8px;
      padding: 8px 10px;
      border-radius: 6px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .hapus {
      background-color: #dc2626;
      border: none;
      color: white;
      padding: 4px 8px;
      border-radius: 6px;
      cursor: pointer;
      font-size: 13px;
    }

    .hapus:hover {
      background-color: #b91c1c;
    }

    .clear-btn {
      margin-top: 15px;
      background-color: #6b7280;
      width: 100%;
    }

    .clear-btn:hover {
      background-color: #4b5563;
    }

    .note {
      text-align: center;
      margin-top: 10px;
      color: #6b7280;
      font-size: 14px;
    }