06Cài đặt CSS Modules + SCSS

<main class="stage">
  <div class="cm-term is-demo">
    <div class="cm-term__bar"><span></span><span></span><span></span></div>
    <div class="cm-term__line cm-term__line--1">Card.module.scss</div>
    <div class="cm-term__line cm-term__line--2">→ styles.card_a3f9k1</div>
    <div class="cm-term__line cm-term__line--3">→ styles.title_p02qz8</div>
  </div>
</main>

@use "../../../../site/static/demo-tokens" as *;

// ── 변수 3개 ──────────────────────────────────────────
$duration: $dur-quick;
$easing: $ease-out;
$color: $subject-blue;

@include stage($stage-yellow);

.cm-term {
  width: min(300px, 90vw);
  box-sizing: border-box;
  padding: $sp-4;
  border-radius: $r-card;
  background: $subject-ink;
  box-shadow: $shadow-raised;
  font: 500 12px/1.6 "SFMono-Regular", Consolas, monospace;
  color: $subject-cream;
}

.cm-term__bar {
  display: flex;
  gap: $sp-1;
  margin-bottom: $sp-3;
  span {
    width: $sp-2; height: $sp-2; border-radius: $r-pill;
    background: rgba(255, 255, 255, .25);
  }
}

.cm-term__line {
  opacity: 0;
  transform: translateY(4px);
}
.cm-term__line--2 { color: $color; }
.cm-term__line--3 { color: $color; }

// 실사용 원리: *.module.scss 는 빌드 시 클래스명을 styles.foo → foo_a3f9k1 같은
// 지역 스코프 해시로 바꿔 컴파일한다. 여기서는 그 컴파일 로그가 한 줄씩 찍히는 걸 보여준다.
@keyframes cm-line {
  0%, 8%  { opacity: 0; transform: translateY(4px); }
  20%, 92% { opacity: 1; transform: none; }
  100%    { opacity: 0; transform: translateY(4px); }
}
.cm-term.is-demo .cm-term__line--1 { animation: cm-line $dur-loop $easing infinite; animation-delay: 0ms; }
.cm-term.is-demo .cm-term__line--2 { animation: cm-line $dur-loop $easing infinite; animation-delay: 220ms; }
.cm-term.is-demo .cm-term__line--3 { animation: cm-line $dur-loop $easing infinite; animation-delay: 440ms; }

@media (prefers-reduced-motion: reduce) {
  .cm-term.is-demo .cm-term__line { animation: none !important; opacity: 1; transform: none; }
}

html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ffd23f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.cm-term {
  width: min(300px, 90vw);
  box-sizing: border-box;
  padding: 16px;
  border-radius: 16px;
  background: #17141a;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  font: 500 12px/1.6 "SFMono-Regular", Consolas, monospace;
  color: #fff7e6;
}

.cm-term__bar {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
}
.cm-term__bar span {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.25);
}

.cm-term__line {
  opacity: 0;
  transform: translateY(4px);
}

.cm-term__line--2 {
  color: #2f6df6;
}

.cm-term__line--3 {
  color: #2f6df6;
}

@keyframes cm-line {
  0%, 8% {
    opacity: 0;
    transform: translateY(4px);
  }
  20%, 92% {
    opacity: 1;
    transform: none;
  }
  100% {
    opacity: 0;
    transform: translateY(4px);
  }
}
.cm-term.is-demo .cm-term__line--1 {
  animation: cm-line 2s ease-out infinite;
  animation-delay: 0ms;
}

.cm-term.is-demo .cm-term__line--2 {
  animation: cm-line 2s ease-out infinite;
  animation-delay: 220ms;
}

.cm-term.is-demo .cm-term__line--3 {
  animation: cm-line 2s ease-out infinite;
  animation-delay: 440ms;
}

@media (prefers-reduced-motion: reduce) {
  .cm-term.is-demo .cm-term__line {
    animation: none !important;
    opacity: 1;
    transform: none;
  }
}

import { CSSProperties } from "react";
import styles from "./CssModulesSetup.module.scss";

export interface CssModulesSetupProps {
  duration?: string;
  easing?: string;
}

// This item is meta: styles.card and styles.title below aren't hardcoded strings —
// they're exactly what CSS Modules generated from the classnames in
// CssModulesSetup.module.scss at build time (e.g. "card_a3f9k1"). Rendering them is
// literally what this whole post's react/ folder relies on.
export default function CssModulesSetup({
  duration = "220ms",
  easing = "ease-out",
}: CssModulesSetupProps) {
  const style: CSSProperties & { "--duration"?: string; "--easing"?: string } = {
    "--duration": duration,
    "--easing": easing,
  };

  return (
    <div className={styles.term} style={style}>
      <div className={styles.bar}><span /><span /><span /></div>
      <div className={styles.line}>Card.module.scss</div>
      <div className={styles.accent}>styles.card → "{styles.card}"</div>
      <div className={styles.accent}>styles.title → "{styles.title}"</div>
    </div>
  );
}