[feat] 공통 컴포넌트 구현 (Post)

package.json

@@ -24,10 +24,12 @@
     "@tailwindcss/postcss": "^4.1.4",
     "@tailwindcss/vite": "^4.1.4",
     "axios": "^1.8.4",
+    "clsx": "^2.1.1",
     "postcss": "^8.5.3",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
     "react-router-dom": "^7.5.1",
+    "tailwind-merge": "^3.2.0",
     "tailwindcss": "^4.1.4"
   },
   "devDependencies": {

src/components/Post/Post.tsx

@@ -0,0 +1,114 @@
+import { cn } from "@/utils/cn";
+import { Link } from "react-router-dom";
+import { formatTimeRange, isPastDate } from "@/utils/datetime";
+import IconTime from "@/assets/icon/time.svg?react";
+import IconLocation from "@/assets/icon/location.svg?react";
+import IconArrow from "@/assets/icon/arrow-up.svg?react";
+import IconArrowBold from "@/assets/icon/arrow-up-bold.svg?react";
+
+const getPayRateText = (
+  hourlyPay: number,
+  originalPay: number,
+): {
+  rawRate: number;
+  displayRate: number;
+  rateText: string;
+} => {
+  const rawRate = ((hourlyPay - originalPay) / originalPay) * 100;
+  const displayRate = Math.min(Math.round(rawRate), 100);
+  const rateText = `기존 시급보다 ${displayRate}%`;
+
+  return { rawRate, displayRate, rateText };
+};
+
+interface PostProps {
+  name: string;
+  imageUrl: string;
+  address1: string;
+  originalHourlyPay: number;
+  link: string;
+  hourlyPay: number;
+  startsAt: string;
+  workhour: number;
+  closed: boolean;
+}
+
+export default function Post({
+  name,
+  imageUrl,
+  address1,
+  originalHourlyPay,
+  link,
+  hourlyPay,
+  startsAt,
+  workhour,
+  closed,
+}: PostProps) {
+  const timeRange = formatTimeRange(startsAt, workhour);
+  const isPast = isPastDate(startsAt, workhour);
+  const isDimmed = closed || isPast;
+  const { displayRate, rateText } = getPayRateText(
+    hourlyPay,
+    originalHourlyPay,
+  );
+
+  return (
+    <Link to={link} className="no-underline text-inherit block">
+      <article
+        className={cn(
+          "relative flex w-full flex-col rounded-xl border border-gray-20 bg-white p-3 shadow-md transition hover:shadow-lg md:p-4",
+        )}
+      >
+        <div className="relative">
+          <img
+            src={imageUrl}
+            alt={name}
+            className="w-full h-[84px] overflow-hidden rounded-xl bg-cover bg-center md:h-40"
+          />
+          {isDimmed && (
+            <h3 className="absolute inset-0 flex items-center justify-center rounded-md bg-black/70 text-sm text-gray-30 md:text-[28px]">
+              {closed ? "마감 완료" : "지난 공고"}
+            </h3>
+          )}
+        </div>
+
+        <div className={cn(isDimmed && "opacity-20")}>
+          <div className="mt-3 flex flex-col gap-2 md:mt-5">
+            <h3 className="text-base md:text-xl">{name}</h3>
+            <p className="flex items-start gap-[6px] text-xs font-normal text-gray-50 md:text-[14px] md:leading-[22px]">
+              <IconTime className="h-4 w-4 md:h-5 md:w-5" />
+              {timeRange}
+            </p>
+            <p className="flex items-start gap-[6px] text-xs font-normal text-gray-50 md:text-[14px] md:leading-[22px]">
+              <IconLocation className="h-4 w-4 md:h-5 md:w-5" />
+              {address1}
+            </p>
+          </div>
+
+          <div className="mt-4 flex flex-col items-start md:flex-row md:items-center md:justify-between">
+            <h2 className="text-lg md:text-2xl">
+              {hourlyPay.toLocaleString()}원
+            </h2>
+
+            {displayRate > 0 && (
+              <span
+                className={cn(
+                  "mt-[5px] flex items-center gap-[2px] text-xs font-normal text-red-40 md:text-sm md:text-white md:px-3 md:py-2 md:rounded-[20px]",
+                  displayRate >= 50
+                    ? "md:bg-red-40"
+                    : displayRate >= 25
+                      ? "md:bg-red-30"
+                      : "md:bg-red-20",
+                )}
+              >
+                {rateText}
+                <IconArrow className="hidden h-5 w-5 md:block" />
+                <IconArrowBold className="h-4 w-4 md:hidden" />
+              </span>
+            )}
+          </div>
+        </div>
+      </article>
+    </Link>
+  );
+}

src/utils/cn.ts

@@ -0,0 +1,6 @@
+import { ClassValue, clsx } from "clsx";
+import { twMerge } from "tailwind-merge";
+
+export const cn = (...inputs: ClassValue[]) => {
+  return twMerge(clsx(inputs));
+};