04Mockup lơ lửng

<main class="stage is-demo">
  <div class="mockup">
    <div class="mockup__bar" aria-hidden="true">
      <span class="mockup__dot"></span>
      <span class="mockup__dot"></span>
      <span class="mockup__dot"></span>
    </div>
    <div class="mockup__body" aria-hidden="true">
      <span class="mockup__block mockup__block--lg"></span>
      <span class="mockup__block mockup__block--sm"></span>
    </div>
  </div>
</main>

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

// ── 변수 3개 ──────────────────────────────────────────
$duration: $dur-loop;   // 2s — 떠오름 한 바퀴
$easing: $ease-spring;
$color: $subject-blue;

@include stage($stage-paper);

.mockup {
  box-sizing: border-box;
  width: clamp(220px, 62vmin, 300px);
  aspect-ratio: 4 / 3;
  border-radius: $r-card;
  background: $subject-cream;
  border: 1px solid rgba($subject-ink, .12);
  box-shadow: $shadow-raised;
  overflow: hidden;
}

.mockup__bar {
  display: flex;
  align-items: center;
  gap: $sp-1;
  padding: $sp-3 $sp-4;
  background: rgba($subject-ink, .06);
}

.mockup__dot { width: $sp-2; height: $sp-2; border-radius: 50%; background: rgba($subject-ink, .18); }
.mockup__dot:first-child { background: $color; }

.mockup__body { display: grid; gap: $sp-3; padding: $sp-6; }
.mockup__block { display: block; height: $sp-4; border-radius: $r-xs; background: rgba($subject-ink, .1); }
.mockup__block--lg { width: 72%; }
.mockup__block--sm { width: 46%; }

// transform 만 — translateY 와 미세 rotate 로 떠 있는 느낌
.stage.is-demo .mockup { animation: float $duration $easing infinite; }

@keyframes float {
  0%   { transform: translateY(0) rotate(0deg); }
  50%  { transform: translateY(-$sp-4) rotate(-1.2deg); }
  100% { transform: translateY(0) rotate(0deg); }
}

@media (prefers-reduced-motion: reduce) {
  .stage.is-demo .mockup { animation: none; transform: none; }
}

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

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

.mockup {
  box-sizing: border-box;
  width: clamp(220px, 62vmin, 300px);
  aspect-ratio: 4/3;
  border-radius: 16px;
  background: #fff7e6;
  border: 1px solid rgba(23, 20, 26, 0.12);
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  overflow: hidden;
}

.mockup__bar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 12px 16px;
  background: rgba(23, 20, 26, 0.06);
}

.mockup__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(23, 20, 26, 0.18);
}

.mockup__dot:first-child {
  background: #2f6df6;
}

.mockup__body {
  display: grid;
  gap: 12px;
  padding: 24px;
}

.mockup__block {
  display: block;
  height: 16px;
  border-radius: 4px;
  background: rgba(23, 20, 26, 0.1);
}

.mockup__block--lg {
  width: 72%;
}

.mockup__block--sm {
  width: 46%;
}

.stage.is-demo .mockup {
  animation: float 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

@keyframes float {
  0% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-16px) rotate(-1.2deg);
  }
  100% {
    transform: translateY(0) rotate(0deg);
  }
}
@media (prefers-reduced-motion: reduce) {
  .stage.is-demo .mockup {
    animation: none;
    transform: none;
  }
}

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

export type MockupFloatProps = {
  duration?: number;
  easing?: string;
  color?: string;
};

type Vars = CSSProperties & { "--duration"?: string; "--easing"?: string; "--color"?: string };

export default function MockupFloat({
  duration = 2000,
  easing = "cubic-bezier(.2,.8,.2,1)",
  color = "#2f6df6",
}: MockupFloatProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <div className={styles.mockup} style={vars}>
      <div className={styles.bar} aria-hidden="true">
        <span className={styles.dot} />
        <span className={styles.dotMuted} />
        <span className={styles.dotMuted} />
      </div>
      <div className={styles.body} aria-hidden="true">
        <span className={`${styles.block} ${styles.blockLg}`} />
        <span className={`${styles.block} ${styles.blockSm}`} />
      </div>
    </div>
  );
}