05Social login button row

<main class="stage">
  <div class="social-row is-demo">
    <button class="social-btn social-btn--a" type="button" aria-label="Continue with Google">
      <span class="social-btn__dot"></span>Google
    </button>
    <button class="social-btn social-btn--b" type="button" aria-label="Continue with Apple">
      <span class="social-btn__dot"></span>Apple
    </button>
    <button class="social-btn social-btn--c" type="button" aria-label="Continue with Kakao">
      <span class="social-btn__dot"></span>Kakao
    </button>
  </div>
</main>

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

$duration: $dur-instant;                               // 버튼 lift 전환 시간
$easing: $ease-out;
$color: $subject-blue;                                 // Google 점 색

@include stage($stage-ink);

.social-row {
  width: min(230px, 86vw);
  display: flex;
  flex-direction: column;
  gap: $sp-3;
}
.social-btn {
  display: flex;
  align-items: center;
  gap: $sp-2;
  padding: $sp-2 $sp-3;
  border: 1.5px solid #e6e2d8;
  border-radius: $r-control;
  background: $stage-paper;
  color: $stage-ink;
  font-size: 13px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  box-shadow: 0 1px 0 rgba(23, 20, 26, .04);
  transition: transform $duration $easing, box-shadow $duration $easing;
  &:hover, &:focus-visible { transform: translateY(-3px); box-shadow: $shadow-press; }
  &:focus-visible { outline: 2px solid $color; outline-offset: 2px; }
  &:active { transform: translateY(-1px); }
}
.social-btn__dot { width: 16px; height: 16px; border-radius: 50%; flex: 0 0 auto; }
.social-btn--a .social-btn__dot { background: $color; }
.social-btn--b .social-btn__dot { background: $stage-ink; }
.social-btn--c .social-btn__dot { background: $stage-yellow; }

.social-row.is-demo .social-btn--a { animation: lift $dur-loop $easing infinite; }
.social-row.is-demo .social-btn--b { animation: lift $dur-loop $easing infinite; animation-delay: calc(#{$dur-loop} / 3); }
.social-row.is-demo .social-btn--c { animation: lift $dur-loop $easing infinite; animation-delay: calc(#{$dur-loop} / 3 * 2); }

@keyframes lift {
  0%, 88%, 100% { transform: translateY(0); box-shadow: 0 1px 0 rgba(23, 20, 26, .04); }
  12%, 22%      { transform: translateY(-3px); box-shadow: $shadow-press; }
}

@media (prefers-reduced-motion: reduce) {
  .social-btn { transition: none; }
  .social-row.is-demo .social-btn--a,
  .social-row.is-demo .social-btn--b,
  .social-row.is-demo .social-btn--c { 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);
}

.social-row {
  width: min(230px, 86vw);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.social-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1.5px solid #e6e2d8;
  border-radius: 12px;
  background: #ffffff;
  color: #17141a;
  font-size: 13px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  box-shadow: 0 1px 0 rgba(23, 20, 26, 0.04);
  transition: transform 140ms ease-out, box-shadow 140ms ease-out;
}
.social-btn:hover, .social-btn:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
}
.social-btn:focus-visible {
  outline: 2px solid #2f6df6;
  outline-offset: 2px;
}
.social-btn:active {
  transform: translateY(-1px);
}

.social-btn__dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  flex: 0 0 auto;
}

.social-btn--a .social-btn__dot {
  background: #2f6df6;
}

.social-btn--b .social-btn__dot {
  background: #17141a;
}

.social-btn--c .social-btn__dot {
  background: #ffd23f;
}

.social-row.is-demo .social-btn--a {
  animation: lift 2s ease-out infinite;
}

.social-row.is-demo .social-btn--b {
  animation: lift 2s ease-out infinite;
  animation-delay: calc(2s / 3);
}

.social-row.is-demo .social-btn--c {
  animation: lift 2s ease-out infinite;
  animation-delay: calc(2s / 3 * 2);
}

@keyframes lift {
  0%, 88%, 100% {
    transform: translateY(0);
    box-shadow: 0 1px 0 rgba(23, 20, 26, 0.04);
  }
  12%, 22% {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
  }
}
@media (prefers-reduced-motion: reduce) {
  .social-btn {
    transition: none;
  }
  .social-row.is-demo .social-btn--a,
  .social-row.is-demo .social-btn--b,
  .social-row.is-demo .social-btn--c {
    animation: none;
  }
}

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

export type SocialLoginRowProps = {
  /** 호버 lift 전환 시간 (기본 140ms) */
  duration?: number;
  easing?: string;
  color?: string;
  onSelect?: (provider: "google" | "apple" | "kakao") => void;
};

/** 클릭한 provider 를 그대로 콜백으로 넘긴다 — 실제 OAuth 시작은 호출부 몫 */
export default function SocialLoginRow({
  duration = 140,
  easing = "ease-out",
  color = "#2f6df6",
  onSelect,
}: SocialLoginRowProps) {
  const style = { "--duration": `${duration}ms`, "--easing": easing, "--color": color } as CSSProperties;
  return (
    <div className={styles.row} style={style}>
      {(["google", "apple", "kakao"] as const).map((p) => (
        <button key={p} type="button" className={styles.btn} onClick={() => onSelect?.(p)}>
          <span className={`${styles.dot} ${styles[p]}`} />
          {p[0].toUpperCase() + p.slice(1)}
        </button>
      ))}
    </div>
  );
}