#46 - feat: 드롭다운 UI props로 대체 후 임시 생성

전에 만들었던 signup/dropdown.tsx 참고, label, list, selected, onSelectedChange

src/components/ui/dropDownUI.tsx

@@ -1,3 +1,127 @@
-export default function DropDownUI() {
-  return <></>;
+import React, { useState, useCallback } from "react";
+import styled from "styled-components";
+
+interface StyledInputProps {
+  isActive: boolean;
 }
+
+interface DropDownProps {
+  label: string;
+  list: string[];
+  selected: string;
+  onSelectedChange: (selected: string) => void;
+}
+
+export default function DropDown({ label, list, selected, onSelectedChange }: DropDownProps) {
+  const [isActive, setIsActive] = useState(false);
+
+  const onActiveToggle = useCallback(() => {
+    setIsActive((prev) => !prev);
+  }, []);
+
+  const handleSelectItem: React.MouseEventHandler<HTMLLIElement> = useCallback(
+    (e) => {
+      const target = e.target as HTMLLIElement;
+      const selectedNation = target.innerText;
+      onSelectedChange(selectedNation);
+      setIsActive(false);
+    },
+    [onSelectedChange]
+  );
+
+  return (
+    <S.Container>
+      <S.Label>{label}</S.Label>
+      <S.DropdownContainer>
+        <S.DropdownBody onClick={onActiveToggle}>
+          <S.Selected>{selected}</S.Selected>
+          <S.Caret />
+        </S.DropdownBody>
+        <S.DropdownMenu isActive={isActive}>
+          {list.map((item) => (
+            <S.DropdownItemContainer key={item} onClick={handleSelectItem}>
+              <S.Item>{item}</S.Item>
+            </S.DropdownItemContainer>
+          ))}
+        </S.DropdownMenu>
+      </S.DropdownContainer>
+    </S.Container>
+  );
+}
+const S = {
+  Container: styled.div`
+    display: flex;
+    flex-direction: column;
+  `,
+  Label: styled.label`
+    margin-bottom: 8px;
+    font-size: 16px;
+    font-weight: 600;
+    color: #1f1f33;
+  `,
+  DropdownContainer: styled.div`
+    position: relative;
+    width: 100%;
+    &:hover {
+      cursor: pointer;
+    }
+  `,
+  DropdownBody: styled.div`
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    width: 100%;
+    height: 50px;
+    padding: 12px 16px;
+    background-color: #f8f8fa;
+    border: 1px solid #dcdce0;
+    border-radius: 8px;
+  `,
+  Selected: styled.div`
+    font-size: 16px;
+    color: #1f1f33;
+  `,
+  Caret: styled.div`
+    width: 0;
+    height: 0;
+    margin-left: 8px;
+    border-top: 6px solid #1f1f33;
+    border-right: 6px solid transparent;
+    border-left: 6px solid transparent;
+  `,
+  DropdownMenu: styled.ul<StyledInputProps>`
+    position: absolute;
+    top: 100%;
+    left: 0;
+    z-index: 1;
+    width: 100%;
+    max-height: 200px;
+    padding: 8px 0;
+    background-color: #ffffff;
+    border: 1px solid #dcdce0;
+    border-radius: 8px;
+    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
+    overflow-y: auto;
+    display: ${(props) => (props.isActive ? "block" : "none")};
+    width: 452px;
+    height: 208px;
+    border: 1px solid #dcdce0;
+    border-radius: 8px;
+    padding-top: 21px;
+  `,
+  DropdownItemContainer: styled.li`
+    display: flex;
+    align-items: center;
+    padding-top: 0px;
+    padding-bottom: 12px;
+    padding-left: 16px;
+    &:hover {
+      background-color: #f8f8fa;
+      cursor: pointer;
+    }
+  `,
+  Item: styled.div`
+    font-size: 16px;
+    color: #1f1f33;
+  `,
+};