01クロム見出しヒーロー

<main class="stage">
  <section class="hero-c">
    <p class="hero-c__eyebrow">CHROME</p>
    <h2 class="hero-c__title">また輝きはじめる最初の画面</h2>
    <button class="hero-c__cta" type="button">無料で始める</button>
  </section>
</main>

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

// ── 변수 3개 ──────────────────────────────────────────
$duration: $dur-loop;   // 크롬 밴드가 한 바퀴 흐르는 시간
$easing: $ease-out;
$color: $subject-blue;  // 그라디언트 안 포인트 색 하나

@include stage($stage-ink);

.hero-c {
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
  width: clamp(260px, 86vw, 400px);
  min-height: clamp(172px, 48vw, 220px);
  border-radius: $r-card;
  background: $stage-ink;
  box-shadow: $shadow-raised;
  padding: $sp-6;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: $sp-3;
}

.hero-c__eyebrow {
  position: relative;
  z-index: 1;
  margin: 0;
  color: $stage-yellow;
  font-weight: 700;
  font-size: clamp(10px, 2.4vw, 12px);
  line-height: 1;
  letter-spacing: .06em;
  text-transform: uppercase;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

// 헤드라인 — 크롬 그라디언트를 글자 모양으로 잘라내고, 그 안의 밝은 밴드가 background-position 만 바뀌며 흐른다 (유일한 애니메이션)
.hero-c__title {
  position: relative;
  z-index: 1;
  margin: 0;
  font-weight: 800;
  font-size: clamp(18px, 4.6vw, 23px);
  line-height: 1.2;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  background: linear-gradient(100deg,
    $stage-paper 0%, rgba($stage-paper, .35) 14%, $subject-cream 28%,
    $stage-yellow 40%, $color 52%, $stage-orange 64%,
    $stage-paper 80%, rgba($stage-paper, .4) 100%);
  background-size: 240% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: chromeFlow $duration $easing infinite;
}

.hero-c__cta {
  position: relative;
  z-index: 1;
  align-self: flex-start;
  border: 0;
  border-radius: $r-pill;
  background: linear-gradient(100deg, $subject-cream, $stage-paper, $subject-cream);
  color: $stage-ink;
  padding: $sp-2 $sp-5;
  font-weight: 700;
  font-size: clamp(11px, 2.6vw, 13px);
  line-height: 1;
  font-family: inherit;
}

@keyframes chromeFlow { 0% { background-position: 0% 50%; } 100% { background-position: 240% 50%; } }

@media (prefers-reduced-motion: reduce) {
  .hero-c__title { animation: none; }
}

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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #17141a;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.hero-c {
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
  width: clamp(260px, 86vw, 400px);
  min-height: clamp(172px, 48vw, 220px);
  border-radius: 16px;
  background: #17141a;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
}

.hero-c__eyebrow {
  position: relative;
  z-index: 1;
  margin: 0;
  color: #ffd23f;
  font-weight: 700;
  font-size: clamp(10px, 2.4vw, 12px);
  line-height: 1;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

.hero-c__title {
  position: relative;
  z-index: 1;
  margin: 0;
  font-weight: 800;
  font-size: clamp(18px, 4.6vw, 23px);
  line-height: 1.2;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  background: linear-gradient(100deg, #ffffff 0%, rgba(255, 255, 255, 0.35) 14%, #fff7e6 28%, #ffd23f 40%, #2f6df6 52%, #ff4d1f 64%, #ffffff 80%, rgba(255, 255, 255, 0.4) 100%);
  background-size: 240% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: chromeFlow 2s ease-out infinite;
}

.hero-c__cta {
  position: relative;
  z-index: 1;
  align-self: flex-start;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(100deg, #fff7e6, #ffffff, #fff7e6);
  color: #17141a;
  padding: 8px 20px;
  font-weight: 700;
  font-size: clamp(11px, 2.6vw, 13px);
  line-height: 1;
  font-family: inherit;
}

@keyframes chromeFlow {
  0% {
    background-position: 0% 50%;
  }
  100% {
    background-position: 240% 50%;
  }
}
@media (prefers-reduced-motion: reduce) {
  .hero-c__title {
    animation: none;
  }
}

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

export type HeroChromeProps = {
  eyebrow?: string;
  title?: string;
  cta?: string;
  /** 한 주기(기본 2000ms) */
  duration?: number;
  easing?: string;
  color?: string;
};

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

export default function HeroChrome({
  eyebrow = "CHROME",
  title = "The first screen, shining again",
  cta = "Start for free",
  duration = 2000,
  easing = "ease-out",
  color = "#2f6df6",
}: HeroChromeProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <section className={styles.hero} style={vars}>
      <p className={styles.eyebrow}>{eyebrow}</p>
      <h2 className={styles.title}>{title}</h2>
      <button type="button" className={styles.cta}>{cta}</button>
    </section>
  );
}