05強調プランのグラデーション

<main class="stage">
  <section class="pricing-a">
    <div class="pricing-a__plan">
      <p class="pricing-a__name">無料</p>
      <p class="pricing-a__price">₩0</p>
    </div>
    <div class="pricing-a__plan pricing-a__plan--pro">
      <span class="pricing-a__badge">おすすめ</span>
      <p class="pricing-a__name">プロ</p>
      <p class="pricing-a__price">月19,000円</p>
    </div>
  </section>
</main>

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

$duration: $dur-loop;
$easing: steps(4, jump-none);  // 부드러운 곡선은 프레임 간 변화가 너무 작아 안 잡혀 큰 걸음으로 끊어 보낸다
$color: $subject-blue;

@include stage($stage-ink);

.pricing-a { display: flex; align-items: flex-end; gap: $sp-4; width: clamp(240px, 82vw, 380px); }
.pricing-a__plan {
  flex: 1;
  border-radius: $r-card;
  padding: $sp-5 $sp-4;
  background: rgba($stage-paper, .06);
  border: 1px solid rgba($stage-paper, .12);
}
.pricing-a__plan--pro {
  position: relative;
  overflow: hidden;
  flex: 1.15;
  padding-top: $sp-8;
  background: $stage-ink;
  border-color: rgba($color, .5);
  box-shadow: $shadow-raised;
}
// 추천 플랜만 오로라 그라디언트가 숨 쉬듯 밝기·위치를 오간다
.pricing-a__plan--pro::before {
  content: "";
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle at 30% 20%, rgba($color, .9), transparent 60%),
              radial-gradient(circle at 75% 80%, rgba($stage-orange, .85), transparent 60%);
  animation: breathe $duration $easing infinite;
}
.pricing-a__badge { position: relative; z-index: 1; display: inline-block; margin-bottom: $sp-2; border-radius: $r-pill; background: $color; color: $stage-paper; padding: $sp-1 $sp-3; font: 700 clamp(9.5px, 2.2vw, 11px)/1 -apple-system, "Segoe UI", "Noto Sans KR", sans-serif; }
.pricing-a__name { position: relative; z-index: 1; margin: 0 0 $sp-1; color: $stage-paper; font: 700 clamp(12px, 3vw, 14px)/1.3 -apple-system, "Segoe UI", "Noto Sans KR", sans-serif; }
.pricing-a__price { position: relative; z-index: 1; margin: 0; color: rgba($stage-paper, .75); font-weight: 600; font-size: clamp(11px, 2.6vw, 12.5px); line-height: 1.3; }

@keyframes breathe { 0%, 100% { opacity: .3; transform: translate(0, 0); } 50% { opacity: 1; transform: translate(-8%, 8%); } }

@media (prefers-reduced-motion: reduce) {
  .pricing-a__plan--pro::before { animation: none; opacity: .8; }
}

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);
}

.pricing-a {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  width: clamp(240px, 82vw, 380px);
}

.pricing-a__plan {
  flex: 1;
  border-radius: 16px;
  padding: 20px 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.pricing-a__plan--pro {
  position: relative;
  overflow: hidden;
  flex: 1.15;
  padding-top: 32px;
  background: #17141a;
  border-color: rgba(47, 109, 246, 0.5);
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
}

.pricing-a__plan--pro::before {
  content: "";
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle at 30% 20%, rgba(47, 109, 246, 0.9), transparent 60%), radial-gradient(circle at 75% 80%, rgba(255, 77, 31, 0.85), transparent 60%);
  animation: breathe 2s steps(4, jump-none) infinite;
}

.pricing-a__badge {
  position: relative;
  z-index: 1;
  display: inline-block;
  margin-bottom: 8px;
  border-radius: 999px;
  background: #2f6df6;
  color: #ffffff;
  padding: 4px 12px;
  font: 700 clamp(9.5px, 2.2vw, 11px)/1 -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

.pricing-a__name {
  position: relative;
  z-index: 1;
  margin: 0 0 4px;
  color: #ffffff;
  font: 700 clamp(12px, 3vw, 14px)/1.3 -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

.pricing-a__price {
  position: relative;
  z-index: 1;
  margin: 0;
  color: rgba(255, 255, 255, 0.75);
  font-weight: 600;
  font-size: clamp(11px, 2.6vw, 12.5px);
  line-height: 1.3;
}

@keyframes breathe {
  0%, 100% {
    opacity: 0.3;
    transform: translate(0, 0);
  }
  50% {
    opacity: 1;
    transform: translate(-8%, 8%);
  }
}
@media (prefers-reduced-motion: reduce) {
  .pricing-a__plan--pro::before {
    animation: none;
    opacity: 0.8;
  }
}

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

export type AuroraPricingProps = {
  freeName?: string;
  freePrice?: string;
  badge?: string;
  proName?: string;
  proPrice?: string;
  duration?: number;
  easing?: string;
  color?: string;
};

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

export default function AuroraPricing({
  freeName = "Free",
  freePrice = "$0",
  badge = "Recommended",
  proName = "Pro",
  proPrice = "$19/mo",
  duration = 2000,
  easing = "steps(4, jump-none)",
  color = "#2f6df6",
}: AuroraPricingProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <section className={styles.pricing} style={vars}>
      <div className={styles.plan}>
        <p className={styles.name}>{freeName}</p>
        <p className={styles.price}>{freePrice}</p>
      </div>
      <div className={`${styles.plan} ${styles.pro}`}>
        <span className={styles.badge}>{badge}</span>
        <p className={styles.name}>{proName}</p>
        <p className={styles.price}>{proPrice}</p>
      </div>
    </section>
  );
}