08단계 방향 슬라이드

<main class="stage">
  <section class="wiz is-demo" aria-label="단계 패널이 진행 방향에 맞춰 슬라이드한다">
    <input class="wiz__radio" type="radio" name="wiz-218" id="wiz-1" checked>
    <input class="wiz__radio" type="radio" name="wiz-218" id="wiz-2">
    <div class="wiz__window">
      <div class="wiz__panel wiz__panel--1">
        <p class="wiz__step">1단계 · 계정</p>
        <p class="wiz__q">이름과 이메일을 적어주세요</p>
      </div>
      <div class="wiz__panel wiz__panel--2">
        <p class="wiz__step">2단계 · 배송지</p>
        <p class="wiz__q">받으실 주소를 적어주세요</p>
      </div>
    </div>
    <div class="wiz__foot">
      <div class="wiz__dots" aria-hidden="true"><span class="wiz__dot"></span><span class="wiz__dot"></span></div>
      <label class="wiz__nav" for="wiz-1">이전</label>
      <label class="wiz__nav wiz__nav--next" for="wiz-2">다음</label>
    </div>
  </section>
</main>

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

$duration: $dur-base;                             // 패널이 한 단계 넘어가는 시간
$easing: $ease-spring;
$color: $subject-blue;                            // 포인트색

@include stage($stage-paper);

.wiz { width: min(300px, 90vw); }
.wiz__radio { position: absolute; opacity: 0; pointer-events: none; }

// ── 패널 창: 두 단계가 나란히 붙어 있고, 창이 이를 보여준다
.wiz__window {
  position: relative;
  height: clamp(96px, 48vh, 148px);
  border-radius: $r-card;
  background: $stage-paper;
  box-shadow: $shadow-press;
  overflow: hidden;
}
.wiz__panel {
  position: absolute; top: 0; bottom: 0; left: 0;
  display: grid;
  align-content: center;
  gap: $sp-2;
  width: 100%;
  box-sizing: border-box;
  padding: $sp-4;
  transition: transform $duration $easing, opacity $duration $easing;
}
.wiz__panel--1 { transform: translateX(0); }
.wiz__panel--2 { transform: translateX(100%); opacity: 0; }

.wiz__step {
  margin: 0;
  padding: $sp-1 $sp-2;
  width: fit-content;
  border-radius: $r-pill;
  background: rgba($color, .14);           // 칩 면(#e2eafe)은 그대로
  font-weight: 700;
  font-size: 11px;
  font-family: inherit;
  color: $subject-blue-deep;                // 그 면 위 $subject-blue 글자는 3.76:1 — 짙은 파랑으로 5.29:1
}
.wiz__q {
  margin: 0;
  font-weight: 800;
  font-size: clamp(15px, 4.4vw, 18px);
  line-height: 1.35;
  font-family: inherit;
  color: $stage-ink;
}

// 라디오: 앞으로 갈 때 1 은 왼쪽으로, 2 는 오른쪽에서 들어온다
#wiz-1:checked ~ .wiz__window .wiz__panel--1 { transform: translateX(0);      opacity: 1; }
#wiz-1:checked ~ .wiz__window .wiz__panel--2 { transform: translateX(100%);  opacity: 0; }
#wiz-2:checked ~ .wiz__window .wiz__panel--1 { transform: translateX(-100%); opacity: 0; }
#wiz-2:checked ~ .wiz__window .wiz__panel--2 { transform: translateX(0);     opacity: 1; }

// ── 발판: 진행 점 + 이전/다음 (라디오 라벨)
.wiz__foot {
  display: flex;
  align-items: center;
  gap: $sp-3;
  margin-top: $sp-3;
}
.wiz__dots { display: flex; gap: $sp-2; padding: 0 $sp-1; }
.wiz__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(23, 20, 26, .18);
  transition: transform $duration $easing, background-color $duration $easing;
}
#wiz-1:checked ~ .wiz__foot .wiz__dot:nth-child(1),
#wiz-2:checked ~ .wiz__foot .wiz__dot:nth-child(2) { background: $color; transform: scale(1.5); }
.wiz__nav {
  padding: $sp-1 $sp-4;
  border-radius: $r-control;
  border: 2px solid rgba(23, 20, 26, .2);
  font-weight: 700;
  font-size: 13px;
  font-family: inherit;
  color: $stage-ink;
  cursor: pointer;
  transition: transform $dur-quick $easing, border-color $dur-quick $easing;
}
.wiz__nav--next { margin-left: auto; background: $stage-ink; border-color: $stage-ink; color: $stage-paper; }
.wiz__nav:active { transform: scale(.94); }

// 렌더·갤러리용 자동 루프: 앞으로(1→2) 갔다 뒤로(2→1) 돌아온다 — 방향이 반대로 보인다
.wiz.is-demo .wiz__panel--1 { animation: p1-loop $dur-loop $easing infinite; }
.wiz.is-demo .wiz__panel--2 { animation: p2-loop $dur-loop $easing infinite; }
.wiz.is-demo .wiz__dot:nth-child(1) { animation: d1-loop $dur-loop $easing infinite; }
.wiz.is-demo .wiz__dot:nth-child(2) { animation: d2-loop $dur-loop $easing infinite; }

@keyframes p1-loop {
  0%, 10%    { transform: translateX(0);      opacity: 1; }
  40%, 60%   { transform: translateX(-100%);  opacity: 0; }
  90%, 100%  { transform: translateX(0);      opacity: 1; }
}
@keyframes p2-loop {
  0%, 10%    { transform: translateX(100%);   opacity: 0; }
  40%, 60%   { transform: translateX(0);      opacity: 1; }
  90%, 100%  { transform: translateX(100%);   opacity: 0; }
}
@keyframes d1-loop {
  0%, 10%    { transform: scale(1.5); background: $color; }
  40%, 60%   { transform: scale(1);   background: rgba(23, 20, 26, .18); }
  90%, 100%  { transform: scale(1.5); background: $color; }
}
@keyframes d2-loop {
  0%, 10%    { transform: scale(1);   background: rgba(23, 20, 26, .18); }
  40%, 60%   { transform: scale(1.5); background: $color; }
  90%, 100%  { transform: scale(1);   background: rgba(23, 20, 26, .18); }
}

@media (max-width: 360px) {          // 320×200 아이프레임 대응
  .wiz__window { height: 96px; }
  .wiz__panel { padding: 8px; gap: 4px; }
  .wiz__q { font-size: 13px; }
  .wiz__foot { margin-top: 8px; gap: 8px; }
  .wiz__nav { padding: 4px 12px; font-size: 11px; }
}

@media (prefers-reduced-motion: reduce) {
  .wiz__panel, .wiz__dot, .wiz__nav { transition: none; }
  .wiz.is-demo .wiz__panel,
  .wiz.is-demo .wiz__dot { animation: none; }     // 패널이 즉시 바뀐다
}

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);
}

.wiz {
  width: min(300px, 90vw);
}

.wiz__radio {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.wiz__window {
  position: relative;
  height: clamp(96px, 48vh, 148px);
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
  overflow: hidden;
}

.wiz__panel {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  display: grid;
  align-content: center;
  gap: 8px;
  width: 100%;
  box-sizing: border-box;
  padding: 16px;
  transition: transform 300ms cubic-bezier(0.2, 0.8, 0.2, 1), opacity 300ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.wiz__panel--1 {
  transform: translateX(0);
}

.wiz__panel--2 {
  transform: translateX(100%);
  opacity: 0;
}

.wiz__step {
  margin: 0;
  padding: 4px 8px;
  width: fit-content;
  border-radius: 999px;
  background: rgba(47, 109, 246, 0.14);
  font-weight: 700;
  font-size: 11px;
  font-family: inherit;
  color: #0a4fe8;
}

.wiz__q {
  margin: 0;
  font-weight: 800;
  font-size: clamp(15px, 4.4vw, 18px);
  line-height: 1.35;
  font-family: inherit;
  color: #17141a;
}

#wiz-1:checked ~ .wiz__window .wiz__panel--1 {
  transform: translateX(0);
  opacity: 1;
}

#wiz-1:checked ~ .wiz__window .wiz__panel--2 {
  transform: translateX(100%);
  opacity: 0;
}

#wiz-2:checked ~ .wiz__window .wiz__panel--1 {
  transform: translateX(-100%);
  opacity: 0;
}

#wiz-2:checked ~ .wiz__window .wiz__panel--2 {
  transform: translateX(0);
  opacity: 1;
}

.wiz__foot {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
}

.wiz__dots {
  display: flex;
  gap: 8px;
  padding: 0 4px;
}

.wiz__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(23, 20, 26, 0.18);
  transition: transform 300ms cubic-bezier(0.2, 0.8, 0.2, 1), background-color 300ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

#wiz-1:checked ~ .wiz__foot .wiz__dot:nth-child(1),
#wiz-2:checked ~ .wiz__foot .wiz__dot:nth-child(2) {
  background: #2f6df6;
  transform: scale(1.5);
}

.wiz__nav {
  padding: 4px 16px;
  border-radius: 12px;
  border: 2px solid rgba(23, 20, 26, 0.2);
  font-weight: 700;
  font-size: 13px;
  font-family: inherit;
  color: #17141a;
  cursor: pointer;
  transition: transform 220ms cubic-bezier(0.2, 0.8, 0.2, 1), border-color 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.wiz__nav--next {
  margin-left: auto;
  background: #17141a;
  border-color: #17141a;
  color: #ffffff;
}

.wiz__nav:active {
  transform: scale(0.94);
}

.wiz.is-demo .wiz__panel--1 {
  animation: p1-loop 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.wiz.is-demo .wiz__panel--2 {
  animation: p2-loop 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.wiz.is-demo .wiz__dot:nth-child(1) {
  animation: d1-loop 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.wiz.is-demo .wiz__dot:nth-child(2) {
  animation: d2-loop 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

@keyframes p1-loop {
  0%, 10% {
    transform: translateX(0);
    opacity: 1;
  }
  40%, 60% {
    transform: translateX(-100%);
    opacity: 0;
  }
  90%, 100% {
    transform: translateX(0);
    opacity: 1;
  }
}
@keyframes p2-loop {
  0%, 10% {
    transform: translateX(100%);
    opacity: 0;
  }
  40%, 60% {
    transform: translateX(0);
    opacity: 1;
  }
  90%, 100% {
    transform: translateX(100%);
    opacity: 0;
  }
}
@keyframes d1-loop {
  0%, 10% {
    transform: scale(1.5);
    background: #2f6df6;
  }
  40%, 60% {
    transform: scale(1);
    background: rgba(23, 20, 26, 0.18);
  }
  90%, 100% {
    transform: scale(1.5);
    background: #2f6df6;
  }
}
@keyframes d2-loop {
  0%, 10% {
    transform: scale(1);
    background: rgba(23, 20, 26, 0.18);
  }
  40%, 60% {
    transform: scale(1.5);
    background: #2f6df6;
  }
  90%, 100% {
    transform: scale(1);
    background: rgba(23, 20, 26, 0.18);
  }
}
@media (max-width: 360px) {
  .wiz__window {
    height: 96px;
  }
  .wiz__panel {
    padding: 8px;
    gap: 4px;
  }
  .wiz__q {
    font-size: 13px;
  }
  .wiz__foot {
    margin-top: 8px;
    gap: 8px;
  }
  .wiz__nav {
    padding: 4px 12px;
    font-size: 11px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .wiz__panel, .wiz__dot, .wiz__nav {
    transition: none;
  }
  .wiz.is-demo .wiz__panel,
  .wiz.is-demo .wiz__dot {
    animation: none;
  }
}

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

export type WizardStepSlideProps = {
  steps: { badge: string; question: string }[];
  backLabel: string;
  nextLabel: string;
  /** 패널이 한 단계 넘어가는 시간 (기본 300ms) */
  duration?: number;
  easing?: string;
  color?: string;
};

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

export default function WizardStepSlide({
  steps,
  backLabel,
  nextLabel,
  duration = 300,
  easing = "cubic-bezier(.2,.8,.2,1)",
  color = "#2f6df6",
}: WizardStepSlideProps) {
  const [step, setStep] = useState(0);
  const [dir, setDir] = useState<"fwd" | "back">("fwd");
  const go = (d: number) => {
    const next = Math.min(Math.max(step + d, 0), steps.length - 1);
    if (next === step) return;
    setDir(d > 0 ? "fwd" : "back");
    setStep(next);
  };
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <section className={styles.wiz} style={vars} aria-label="다단계 폼">
      <div className={styles.window}>
        {steps.map((s, i) => (
          <div
            key={s.badge}
            className={`${styles.panel} ${i === step ? styles.panelOn : ""}`}
            data-side={i < step ? "left" : i > step ? "right" : dir}
          >
            <p className={styles.step}>{s.badge}</p>
            <p className={styles.q}>{s.question}</p>
          </div>
        ))}
      </div>
      <div className={styles.foot}>
        <div className={styles.dots} aria-hidden="true">
          {steps.map((s, i) => (
            <span key={s.badge} className={`${styles.dot} ${i === step ? styles.dotOn : ""}`} />
          ))}
        </div>
        <button type="button" className={styles.nav} onClick={() => go(-1)}>{backLabel}</button>
        <button type="button" className={`${styles.nav} ${styles.navNext}`} onClick={() => go(1)}>{nextLabel}</button>
      </div>
    </section>
  );
}