07Invoice / subscription billing email

<main class="stage">
<div class="ema is-demo" id="ema">
<!--[if mso]>
<table role="presentation" width="100%" cellpadding="0" cellspacing="0"><tr><td>
<![endif]-->
<table role="presentation" width="100%" cellpadding="0" cellspacing="0" class="ema__table">
<tr><td align="center" class="ema__wrap">
<table role="presentation" width="100%" cellpadding="0" cellspacing="0" class="ema__card" style="max-width:400px">
<tr><td class="ema__brand">◆ Acme</td></tr>
<tr><td align="center" class="ema__hero"><span class="ema__badge" aria-hidden="true">💳</span></td></tr>
<tr><td align="center" class="ema__title">This month's invoice has arrived</td></tr>
<tr><td align="center" class="ema__body">Your subscription charge is included in this month's invoice.</td></tr>
<tr><td align="center" class="ema__ctawrap">
<table role="presentation" cellpadding="0" cellspacing="0"><tr>
<td class="ema__ctabtn"><a href="#" role="button" class="ema__cta" id="cta">View invoice</a></td>
</tr></table>
</td></tr>
<tr><td align="center" class="ema__amount">Monthly subscription <b id="amt">₩0</b></td></tr><tr><td class="ema__detailrow"><button type="button" class="ema__detailtoggle" id="detailtoggle" aria-expanded="false" aria-controls="detail">View billing details</button><div class="ema__detail" id="detail"><div class="ema__detailin"><div class="ema__li"><span>Acme Pro monthly</span><span>12,900 won</span></div></div></div></td></tr>
<tr><td align="center" class="ema__footer">Acme Inc · Seoul · <a href="#" class="ema__unsub">Unsubscribe</a></td></tr>
</table>
</td></tr>
</table>
<!--[if mso]>
</td></tr></table>
<![endif]-->
</div>
<button type="button" class="ema-darktoggle" id="darktoggle" aria-pressed="false">Preview dark mode</button>
</main>

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

$duration: $dur-base;
$easing: $ease-spring;
$color: $subject-blue;

@include stage($stage-orange);

.stage { position: relative; }
.ema { width: min(100%, 400px); }
.ema__table { border-collapse: collapse; }
.ema__wrap { padding: 0; }
.ema__card {
  border-collapse: collapse; background: $stage-paper; border-radius: $r-card;
  box-shadow: $shadow-raised; overflow: hidden;
}
.ema__card td { padding: $sp-1 $sp-5; font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif; -webkit-text-size-adjust: 100%; line-height: 1; }
.ema__brand { font-weight: 800; font-size: 11px; line-height: 1;
  font-family: inherit; color: rgba($subject-ink, .72); letter-spacing: .02em; padding-top: $sp-2 !important; }
.ema__hero { padding-top: $sp-1 !important; padding-bottom: $sp-1 !important; }
.ema__badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: clamp(26px, 8vw, 34px); height: clamp(26px, 8vw, 34px);
  border-radius: 50%; background: $subject-blue; font-size: clamp(13px, 4vw, 16px); line-height: 1;
}
.ema__title { font-weight: 800; font-size: clamp(12px, 3.6vw, 14px); line-height: 1.25;
  font-family: inherit; color: $subject-ink; padding-top: $sp-1 !important; padding-bottom: $sp-1 !important; }
.ema__body { font-weight: 500; font-size: clamp(10px, 3vw, 11px); line-height: 1.4;
  font-family: inherit; color: rgba(23,20,26,.62); padding-top: 0 !important; padding-bottom: $sp-1 !important; }
.ema__ctawrap { padding-top: $sp-1 !important; padding-bottom: $sp-1 !important; }
.ema__ctabtn { border-radius: $r-control; background: $subject-blue; }
.ema__cta {
  display: inline-block; padding: $sp-1 $sp-6; font-weight: 700; font-size: 11px; line-height: 1.6;
  font-family: inherit;
  color: $stage-paper; text-decoration: none; border-radius: $r-control;
}
.ema__footer { font-weight: 500; font-size: 8px; line-height: 1.4;
  font-family: inherit; color: rgba($subject-ink, .72); padding-top: $sp-2 !important; padding-bottom: $sp-2 !important; }
.ema__footer a { color: inherit; }

// ── 다크모드 미리보기(수동 토글) + prefers-color-scheme(자동) — 실제 이메일 클라이언트 지원 흉내
.ema.is-dark .ema__card { background: $stage-ink; }
.ema.is-dark .ema__title { color: $subject-cream; }
.ema.is-dark .ema__body,
.ema.is-dark .ema__footer { color: rgba(255,247,230,.6); }
.ema.is-dark .ema__brand { color: rgba(255,247,230,.7); }
// 다크 카드 위 추가 줄 — 밝은 모드의 rgba($subject-ink,.72) 가 그대로 남으면 잉크 면 위 잉크 글자(1.00:1)라 안 보인다 (2026-09-13 대비 스캔)
.ema.is-dark .ema__amount, .ema.is-dark .ema__detailtoggle, .ema.is-dark .ema__li { color: rgba(255,247,230,.72); }
.ema.is-dark .ema__amount b { color: $subject-cream; }
@media (prefers-color-scheme: dark) {
  .ema__card { background: $stage-ink; }
  .ema__title { color: $subject-cream; }
  .ema__body, .ema__footer { color: rgba(255,247,230,.6); }
  .ema__brand { color: rgba(255,247,230,.7); }
  .ema__amount, .ema__detailtoggle, .ema__li { color: rgba(255,247,230,.72); }
  .ema__amount b { color: $subject-cream; }
}
// 레이아웃 흐름에서 빼 카드 높이에 영향을 주지 않는다 (480×300 무대에 맞추려고)
.ema-darktoggle {
  position: absolute; top: $sp-2; right: $sp-2;
  background: $stage-ink; border: 1px solid rgba(255,247,230,.3);
  color: $subject-cream; border-radius: $r-pill; padding: $sp-1 $sp-3; font-weight: 600; font-size: 9px; line-height: 1.4;
  font-family: inherit; cursor: pointer;
  font-family: inherit;
}


.ema.is-demo .ema__badge { animation: ema-counterpulse 2s ease-in-out infinite; }
@keyframes ema-counterpulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.08); } }


.ema__amount { font-weight: 600; font-size: 12px; line-height: 1.5;
  font-family: inherit; color: rgba($subject-ink, .72); }
.ema__amount b { font-family: "Space Mono", monospace; color: $subject-ink; font-size: 14px; }
.ema__detailrow { padding-top: 0 !important; }
.ema__detailtoggle { width: 100%; text-align: left; background: none; border: none; cursor: pointer; font-weight: 600; font-size: 12px; line-height: 1.4;
  font-family: inherit; color: rgba($subject-ink, .72); padding: $sp-1 0; }
.ema__detail { display: grid; grid-template-rows: 0fr; transition: grid-template-rows $dur-base $ease-spring; }
.ema__detailin { overflow: hidden; }
.ema.is-open .ema__detail { grid-template-rows: 1fr; }
.ema__li { display: flex; justify-content: space-between; font-weight: 500; font-size: 11px; line-height: 1.6;
  font-family: inherit; color: rgba($subject-ink, .72); padding: $sp-1 0; border-top: 1px solid rgba(0,0,0,.06); }


// 320×200 폰 실측(BD9 규칙)에서 6개 항목(추가 줄이 있는 02·03·04·05·06·07)이 10~46px 넘쳐
// 행마다 세로 패딩을 !important 로 다시 줄인다 (가로 폭만 줄이던 첫 시도로는 안 됐다 — 실측 2026-09-11)
@media (max-width: 340px), (max-height: 220px) {
  .ema__card td { padding-left: $sp-3; padding-right: $sp-3; padding-top: 0; padding-bottom: 0; }
  .ema__brand { padding-top: 0 !important; font-size: 9px !important; }
  .ema__hero { padding-top: 0 !important; padding-bottom: 0 !important; }
  .ema__badge { width: 22px; height: 22px; font-size: 11px; }
  .ema__title { font-size: 10px !important; padding-top: 0 !important; padding-bottom: 0 !important; }
  .ema__body { font-size: 8px !important; padding-bottom: 0 !important; }
  .ema__ctawrap { padding-top: 0 !important; padding-bottom: 0 !important; }
  .ema__cta { padding: 0 $sp-5 !important; }
  .ema__footer { font-size: 7px !important; padding-top: $sp-1 !important; padding-bottom: $sp-1 !important; }
  .ema-darktoggle { font-size: 8px; padding: 0 $sp-2; top: $sp-1; right: $sp-1; }
  // 항목별 "extra" 줄(펼침 버튼·카운트다운·안읽음·복사·금액) 공통 압축 — 해당 클래스가 없는 항목엔 영향 없음
  .ema__detailtoggle, .ema__countdown, .ema__unreadrow, .ema__amount, .ema__copyrow, .ema__steprow {
    padding-top: 0 !important; padding-bottom: 0 !important; font-size: 9px !important;
  }
  .ema__li { padding: 0 $sp-3 !important; font-size: 9px !important; }
  .ema__track { margin-bottom: 0 !important; }
  .ema__copybtn { padding: 0 $sp-2 !important; }
}

@media (prefers-reduced-motion: reduce) {
  .ema.is-demo .ema__badge,
  .ema.is-demo .ema__fill,
  .ema.is-demo .ema__badge::after { animation: none !important; }
  .ema__detail, .ema__card, .ema__cta { transition: none; }
}

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);
}

.stage {
  position: relative;
}

.ema {
  width: min(100%, 400px);
}

.ema__table {
  border-collapse: collapse;
}

.ema__wrap {
  padding: 0;
}

.ema__card {
  border-collapse: collapse;
  background: #ffffff;
  border-radius: 16px;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  overflow: hidden;
}

.ema__card td {
  padding: 4px 20px;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  -webkit-text-size-adjust: 100%;
  line-height: 1;
}

.ema__brand {
  font-weight: 800;
  font-size: 11px;
  line-height: 1;
  font-family: inherit;
  color: rgba(23, 20, 26, 0.72);
  letter-spacing: 0.02em;
  padding-top: 8px !important;
}

.ema__hero {
  padding-top: 4px !important;
  padding-bottom: 4px !important;
}

.ema__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: clamp(26px, 8vw, 34px);
  height: clamp(26px, 8vw, 34px);
  border-radius: 50%;
  background: #2f6df6;
  font-size: clamp(13px, 4vw, 16px);
  line-height: 1;
}

.ema__title {
  font-weight: 800;
  font-size: clamp(12px, 3.6vw, 14px);
  line-height: 1.25;
  font-family: inherit;
  color: #17141a;
  padding-top: 4px !important;
  padding-bottom: 4px !important;
}

.ema__body {
  font-weight: 500;
  font-size: clamp(10px, 3vw, 11px);
  line-height: 1.4;
  font-family: inherit;
  color: rgba(23, 20, 26, 0.62);
  padding-top: 0 !important;
  padding-bottom: 4px !important;
}

.ema__ctawrap {
  padding-top: 4px !important;
  padding-bottom: 4px !important;
}

.ema__ctabtn {
  border-radius: 12px;
  background: #2f6df6;
}

.ema__cta {
  display: inline-block;
  padding: 4px 24px;
  font-weight: 700;
  font-size: 11px;
  line-height: 1.6;
  font-family: inherit;
  color: #ffffff;
  text-decoration: none;
  border-radius: 12px;
}

.ema__footer {
  font-weight: 500;
  font-size: 8px;
  line-height: 1.4;
  font-family: inherit;
  color: rgba(23, 20, 26, 0.72);
  padding-top: 8px !important;
  padding-bottom: 8px !important;
}

.ema__footer a {
  color: inherit;
}

.ema.is-dark .ema__card {
  background: #17141a;
}

.ema.is-dark .ema__title {
  color: #fff7e6;
}

.ema.is-dark .ema__body,
.ema.is-dark .ema__footer {
  color: rgba(255, 247, 230, 0.6);
}

.ema.is-dark .ema__brand {
  color: rgba(255, 247, 230, 0.7);
}

.ema.is-dark .ema__amount, .ema.is-dark .ema__detailtoggle, .ema.is-dark .ema__li {
  color: rgba(255, 247, 230, 0.72);
}

.ema.is-dark .ema__amount b {
  color: #fff7e6;
}

@media (prefers-color-scheme: dark) {
  .ema__card {
    background: #17141a;
  }
  .ema__title {
    color: #fff7e6;
  }
  .ema__body, .ema__footer {
    color: rgba(255, 247, 230, 0.6);
  }
  .ema__brand {
    color: rgba(255, 247, 230, 0.7);
  }
  .ema__amount, .ema__detailtoggle, .ema__li {
    color: rgba(255, 247, 230, 0.72);
  }
  .ema__amount b {
    color: #fff7e6;
  }
}
.ema-darktoggle {
  position: absolute;
  top: 8px;
  right: 8px;
  background: #17141a;
  border: 1px solid rgba(255, 247, 230, 0.3);
  color: #fff7e6;
  border-radius: 999px;
  padding: 4px 12px;
  font-weight: 600;
  font-size: 9px;
  line-height: 1.4;
  font-family: inherit;
  cursor: pointer;
  font-family: inherit;
}

.ema.is-demo .ema__badge {
  animation: ema-counterpulse 2s ease-in-out infinite;
}

@keyframes ema-counterpulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.08);
  }
}
.ema__amount {
  font-weight: 600;
  font-size: 12px;
  line-height: 1.5;
  font-family: inherit;
  color: rgba(23, 20, 26, 0.72);
}

.ema__amount b {
  font-family: "Space Mono", monospace;
  color: #17141a;
  font-size: 14px;
}

.ema__detailrow {
  padding-top: 0 !important;
}

.ema__detailtoggle {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 12px;
  line-height: 1.4;
  font-family: inherit;
  color: rgba(23, 20, 26, 0.72);
  padding: 4px 0;
}

.ema__detail {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 300ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.ema__detailin {
  overflow: hidden;
}

.ema.is-open .ema__detail {
  grid-template-rows: 1fr;
}

.ema__li {
  display: flex;
  justify-content: space-between;
  font-weight: 500;
  font-size: 11px;
  line-height: 1.6;
  font-family: inherit;
  color: rgba(23, 20, 26, 0.72);
  padding: 4px 0;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

@media (max-width: 340px), (max-height: 220px) {
  .ema__card td {
    padding-left: 12px;
    padding-right: 12px;
    padding-top: 0;
    padding-bottom: 0;
  }
  .ema__brand {
    padding-top: 0 !important;
    font-size: 9px !important;
  }
  .ema__hero {
    padding-top: 0 !important;
    padding-bottom: 0 !important;
  }
  .ema__badge {
    width: 22px;
    height: 22px;
    font-size: 11px;
  }
  .ema__title {
    font-size: 10px !important;
    padding-top: 0 !important;
    padding-bottom: 0 !important;
  }
  .ema__body {
    font-size: 8px !important;
    padding-bottom: 0 !important;
  }
  .ema__ctawrap {
    padding-top: 0 !important;
    padding-bottom: 0 !important;
  }
  .ema__cta {
    padding: 0 20px !important;
  }
  .ema__footer {
    font-size: 7px !important;
    padding-top: 4px !important;
    padding-bottom: 4px !important;
  }
  .ema-darktoggle {
    font-size: 8px;
    padding: 0 8px;
    top: 4px;
    right: 4px;
  }
  .ema__detailtoggle, .ema__countdown, .ema__unreadrow, .ema__amount, .ema__copyrow, .ema__steprow {
    padding-top: 0 !important;
    padding-bottom: 0 !important;
    font-size: 9px !important;
  }
  .ema__li {
    padding: 0 12px !important;
    font-size: 9px !important;
  }
  .ema__track {
    margin-bottom: 0 !important;
  }
  .ema__copybtn {
    padding: 0 8px !important;
  }
}
@media (prefers-reduced-motion: reduce) {
  .ema.is-demo .ema__badge,
  .ema.is-demo .ema__fill,
  .ema.is-demo .ema__badge::after {
    animation: none !important;
  }
  .ema__detail, .ema__card, .ema__cta {
    transition: none;
  }
}

var ema = document.getElementById('ema');
var cta = document.getElementById('cta');
var darktoggle = document.getElementById('darktoggle');
darktoggle.addEventListener('click', function () {
  var on = ema.classList.toggle('is-dark');
  darktoggle.setAttribute('aria-pressed', String(on));
});

var amt = document.getElementById('amt');
var target = 12900, cur = 0;
var t0 = null;
function step(ts) {
  if (!t0) t0 = ts;
  var p = Math.min(1, (ts - t0) / 1200);
  cur = Math.round(target * p);
  amt.textContent = cur.toLocaleString('ko-KR') + ' won';
  if (p < 1) requestAnimationFrame(step);
}
requestAnimationFrame(step);
var dt = document.getElementById('detailtoggle');
dt.addEventListener('click', function () {
  ema.classList.remove('is-demo');
  var open = ema.classList.toggle('is-open');
  dt.setAttribute('aria-expanded', String(open));
});

import { useState, useEffect, useRef } from "react";
import styles from "./Invoice.module.scss";

export type InvoiceProps = { duration?: number; easing?: string; color?: string };

export default function Invoice({ duration = 300, easing = "cubic-bezier(.2,.8,.2,1)", color = "#2f6df6" }: InvoiceProps) {
  const [dark, setDark] = useState(false);
  const [open, setOpen] = useState(false);
  const [amt, setAmt] = useState(0);
  const raf = useRef<number | null>(null);
  useEffect(() => {
    const t0 = performance.now();
    const tick = (ts: number) => { const p = Math.min(1, (ts - t0) / 1200); setAmt(Math.round(12900 * p)); if (p < 1) raf.current = requestAnimationFrame(tick); };
    raf.current = requestAnimationFrame(tick);
    return () => { if (raf.current) cancelAnimationFrame(raf.current); };
  }, []);
  return (
    <main className={styles.stage} style={{ background: "#ff4d1f" }}>
      <div className={`${styles.ema}`}>
        <div className={`${styles.card} ${dark ? styles.dark : ""}`}>
          <div className={styles.row + " " + styles.brand}>◆ Acme</div>
          <div className={styles.hero}>
            <span className={`${styles.badge} ${styles.anim}`} style={{ background: "#2f6df6", animationName: "counterpulse", animationDuration: "2s", animationTimingFunction: "ease-in-out", animationIterationCount: "infinite" }} aria-hidden="true">💳</span>
          </div>
          <div className={styles.title}>이번 달 청구서가 도착했어요</div>
          <div className={styles.body}>정기결제 금액이 이번 달 청구서에 포함되었어요.</div>
          <div className={styles.ctawrap}>
            <a href="#" role="button" className={styles.cta} style={{ background: "#2f6df6" }} onClick={(e: { preventDefault: () => void }) => { e.preventDefault(); }}>{"청구서 확인"}</a>
          </div>
          <div className={styles.row} style={{ textAlign: "center" }}>월 정기결제 <b>{amt.toLocaleString("ko-KR")}원</b></div>
          <div className={styles.row}>
            <button type="button" className={styles.detailtoggle} aria-expanded={open} onClick={() => setOpen((v) => !v)}>청구 내역 보기</button>
            <div className={`${styles.detail} ${open ? styles.open : ""}`}><div className={styles.detailin}>
              <div className={styles.li}><span>Acme Pro 월간</span><span>12,900원</span></div>
            </div></div>
          </div>
          <div className={styles.footer}>Acme Inc · 서울 · <a href="#">수신거부</a></div>
        </div>
        <button type="button" className={styles.darktoggle} aria-pressed={dark} onClick={() => setDark((v) => !v)}>다크 모드 미리보기</button>
      </div>
    </main>
  );
}