07Ticket-tear confirm

<main class="stage">
  <section class="tear is-demo" aria-label="At confirmation the ticket tears into two stubs">
    <input class="tear__check" type="checkbox" id="tear-ok">
    <div class="tear__ticket">
      <div class="tear__half tear__half--l">
        <p class="tear__title">Admission</p>
        <p class="tear__seat">Row A, 12</p>
      </div>
      <div class="tear__half tear__half--r">
        <span class="tear__barcode" aria-hidden="true"></span>
        <label class="tear__btn" for="tear-ok">Confirm</label>
      </div>
      <span class="tear__perf" aria-hidden="true"></span>
    </div>
  </section>
</main>

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

$duration: 720ms;                                 // 찢겨 빠지는 시간
$easing: $ease-spring;
$color: $subject-blue;                            // 티켓 포인트색

@include stage($stage-orange);

.tear { display: grid; place-items: center; }
.tear__check { position: absolute; opacity: 0; pointer-events: none; }

.tear__ticket {
  position: relative;
  display: flex;
  width: min(320px, 90vw);
  height: 128px;
  border-radius: $r-card;
  background: $stage-paper;
  box-shadow: $shadow-raised;
  overflow: hidden;
}
.tear__half {
  box-sizing: border-box;
  display: grid;
  align-content: center;
  gap: $sp-2;
  padding: $sp-4;
  background: $stage-paper;
  transition: transform $duration $easing, opacity $duration $easing;
  z-index: 1;
}
.tear__half--l { flex: 1 1 auto; border-right: 0; }
.tear__half--r {
  flex: 0 0 112px;
  justify-items: center;
  background: linear-gradient(180deg, $stage-paper 0%, rgba($color, .12) 100%);
}
.tear__title {
  margin: 0;
  font-weight: 800;
  font-size: clamp(16px, 4.6vw, 20px);
  font-family: inherit;
  color: $stage-ink;
}
.tear__seat {
  margin: 0;
  font-weight: 600;
  font-size: clamp(12px, 3.4vw, 14px);
  font-family: inherit;
  color: rgba(23, 20, 26, .6);
}
.tear__barcode {
  width: 56px; height: 44px;
  border-radius: $r-xs;
  background: repeating-linear-gradient(90deg,
    $stage-ink 0 4px, transparent 4px 8px, $stage-ink 8px 10px, transparent 10px 16px);
}
.tear__btn {
  padding: $sp-1 $sp-3;
  border-radius: $r-control;
  background: $stage-ink;
  font-weight: 700;
  font-size: 12px;
  font-family: inherit;
  color: $stage-paper;
  cursor: pointer;
  transition: transform $dur-quick $easing;
}
.tear__btn:active { transform: scale(.94); }

// 가운데 점선 미신흔 — 찢기는 순간 밝아진다
.tear__perf {
  position: absolute; top: 0; bottom: 0; left: calc(100% - 112px);
  width: 0;
  border-left: 2px dashed rgba(23, 20, 26, .3);
  z-index: 2;
  transition: border-color $dur-quick $easing;
}

// 확인: 왼쪽·오른쪽 반대 방향으로 기울며 벌어져 빠진다
#tear-ok:checked ~ .tear__ticket .tear__perf { border-color: rgba(23, 20, 26, .9); }
#tear-ok:checked ~ .tear__ticket .tear__half--l {
  transform: translate(-52px, 26px) rotate(-9deg);
  opacity: 0;
}
#tear-ok:checked ~ .tear__ticket .tear__half--r {
  transform: translate(44px, 30px) rotate(8deg);
  opacity: 0;
}

// 렌더·갤러리용 자동 루프: 온전 → 미싯값 밝아짐 → 찢김 퇴장 → 재등장
.tear.is-demo .tear__half--l { animation: half-l $dur-loop $easing infinite; }
.tear.is-demo .tear__half--r { animation: half-r $dur-loop $easing infinite; }
.tear.is-demo .tear__perf    { animation: perf $dur-loop $easing infinite; }

@keyframes half-l {
  0%, 24%   { transform: translate(0, 0) rotate(0); opacity: 1; }
  56%, 84%  { transform: translate(-52px, 26px) rotate(-9deg); opacity: 0; }
  92%, 100% { transform: translate(0, 0) rotate(0); opacity: 1; }
}
@keyframes half-r {
  0%, 24%   { transform: translate(0, 0) rotate(0); opacity: 1; }
  56%, 84%  { transform: translate(44px, 30px) rotate(8deg); opacity: 0; }
  92%, 100% { transform: translate(0, 0) rotate(0); opacity: 1; }
}
@keyframes perf {
  0%, 24%   { border-color: rgba(23, 20, 26, .3); }
  32%, 52%  { border-color: rgba(23, 20, 26, .9); }
  60%, 100% { border-color: rgba(23, 20, 26, .3); }
}

@media (prefers-reduced-motion: reduce) {
  .tear__half, .tear__perf, .tear__btn { transition: none; }
  .tear.is-demo .tear__half,
  .tear.is-demo .tear__perf { animation: none; }   // 찢김 없이 즉시 사라진다
}

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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ff4d1f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.tear {
  display: grid;
  place-items: center;
}

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

.tear__ticket {
  position: relative;
  display: flex;
  width: min(320px, 90vw);
  height: 128px;
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  overflow: hidden;
}

.tear__half {
  box-sizing: border-box;
  display: grid;
  align-content: center;
  gap: 8px;
  padding: 16px;
  background: #ffffff;
  transition: transform 720ms cubic-bezier(0.2, 0.8, 0.2, 1), opacity 720ms cubic-bezier(0.2, 0.8, 0.2, 1);
  z-index: 1;
}

.tear__half--l {
  flex: 1 1 auto;
  border-right: 0;
}

.tear__half--r {
  flex: 0 0 112px;
  justify-items: center;
  background: linear-gradient(180deg, #ffffff 0%, rgba(47, 109, 246, 0.12) 100%);
}

.tear__title {
  margin: 0;
  font-weight: 800;
  font-size: clamp(16px, 4.6vw, 20px);
  font-family: inherit;
  color: #17141a;
}

.tear__seat {
  margin: 0;
  font-weight: 600;
  font-size: clamp(12px, 3.4vw, 14px);
  font-family: inherit;
  color: rgba(23, 20, 26, 0.6);
}

.tear__barcode {
  width: 56px;
  height: 44px;
  border-radius: 4px;
  background: repeating-linear-gradient(90deg, #17141a 0 4px, transparent 4px 8px, #17141a 8px 10px, transparent 10px 16px);
}

.tear__btn {
  padding: 4px 12px;
  border-radius: 12px;
  background: #17141a;
  font-weight: 700;
  font-size: 12px;
  font-family: inherit;
  color: #ffffff;
  cursor: pointer;
  transition: transform 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

.tear__perf {
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(100% - 112px);
  width: 0;
  border-left: 2px dashed rgba(23, 20, 26, 0.3);
  z-index: 2;
  transition: border-color 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

#tear-ok:checked ~ .tear__ticket .tear__perf {
  border-color: rgba(23, 20, 26, 0.9);
}

#tear-ok:checked ~ .tear__ticket .tear__half--l {
  transform: translate(-52px, 26px) rotate(-9deg);
  opacity: 0;
}

#tear-ok:checked ~ .tear__ticket .tear__half--r {
  transform: translate(44px, 30px) rotate(8deg);
  opacity: 0;
}

.tear.is-demo .tear__half--l {
  animation: half-l 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.tear.is-demo .tear__half--r {
  animation: half-r 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.tear.is-demo .tear__perf {
  animation: perf 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

@keyframes half-l {
  0%, 24% {
    transform: translate(0, 0) rotate(0);
    opacity: 1;
  }
  56%, 84% {
    transform: translate(-52px, 26px) rotate(-9deg);
    opacity: 0;
  }
  92%, 100% {
    transform: translate(0, 0) rotate(0);
    opacity: 1;
  }
}
@keyframes half-r {
  0%, 24% {
    transform: translate(0, 0) rotate(0);
    opacity: 1;
  }
  56%, 84% {
    transform: translate(44px, 30px) rotate(8deg);
    opacity: 0;
  }
  92%, 100% {
    transform: translate(0, 0) rotate(0);
    opacity: 1;
  }
}
@keyframes perf {
  0%, 24% {
    border-color: rgba(23, 20, 26, 0.3);
  }
  32%, 52% {
    border-color: rgba(23, 20, 26, 0.9);
  }
  60%, 100% {
    border-color: rgba(23, 20, 26, 0.3);
  }
}
@media (prefers-reduced-motion: reduce) {
  .tear__half, .tear__perf, .tear__btn {
    transition: none;
  }
  .tear.is-demo .tear__half,
  .tear.is-demo .tear__perf {
    animation: none;
  }
}

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

export type TicketTearConfirmProps = {
  title: string;
  meta: string;
  confirmLabel: string;
  /** 찢겨 빠지는 시간 (기본 720ms) */
  duration?: number;
  easing?: string;
  color?: string;
};

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

export default function TicketTearConfirm({
  title,
  meta,
  confirmLabel,
  duration = 720,
  easing = "cubic-bezier(.2,.8,.2,1)",
  color = "#2f6df6",
}: TicketTearConfirmProps) {
  const [torn, setTorn] = useState(false);
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <section className={styles.tear} style={vars} aria-label={title}>
      <div className={styles.ticket}>
        <div className={`${styles.half} ${styles.halfL} ${torn ? styles.halfLGo : ""}`}>
          <p className={styles.title}>{title}</p>
          <p className={styles.meta}>{meta}</p>
        </div>
        <div className={`${styles.half} ${styles.halfR} ${torn ? styles.halfRGo : ""}`}>
          <span className={styles.barcode} aria-hidden="true" />
          <button type="button" className={styles.btn} onClick={() => setTorn(true)}>{confirmLabel}</button>
        </div>
        <span className={`${styles.perf} ${torn ? styles.perfOn : ""}`} aria-hidden="true" />
      </div>
    </section>
  );
}