08Register CTA

<main class="stage">
  <section class="rc is-demo">
    <span class="rc__orb rc__orb--1" aria-hidden="true"></span>
    <span class="rc__orb rc__orb--2" aria-hidden="true"></span>
    <h2 class="rc__title">Register now and<br>get early bird perks</h2>
    <p class="rc__sub">Registrants get a booklet and networking invite.</p>
    <form class="rc__form" novalidate>
      <input class="rc__input" type="email" placeholder="[email protected]" required>
      <button class="rc__submit" type="submit">
        <span class="rc__submit-label">Register</span>
        <svg class="rc__check" viewBox="0 0 24 24" aria-hidden="true"><polyline points="5 13 10 18 19 7" /></svg>
      </button>
    </form>
    <p class="rc__done" role="status"></p>
  </section>
</main>

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

// ── 변수 3개 ──────────────────────────────────────────
$duration: $dur-base;                                 // 체크·버튼 전환
$easing: $ease-pop;
$color: $subject-blue;                                 // 버튼·체크 색

@include stage($stage-paper);

.rc {
  position: relative;
  width: min(360px, 92vw);
  text-align: center;
  overflow: hidden;
  isolation: isolate;
}
.rc__orb {
  position: absolute; border-radius: 50%; filter: blur(20px); z-index: -1;
}
.rc__orb--1 { width: 140px; height: 140px; left: -30px; top: -20px; background: radial-gradient(circle, $subject-blue, transparent 70%); opacity: .16; animation: rc-drift 8s ease-in-out infinite; }
.rc__orb--2 { width: 120px; height: 120px; right: -20px; bottom: -30px; background: radial-gradient(circle, $subject-blue, transparent 70%); opacity: .12; animation: rc-drift 7s ease-in-out infinite reverse; }
@keyframes rc-drift {
  0%, 100% { transform: translate(0, 0); }
  50%      { transform: translate($sp-4, -$sp-3); }
}

.rc__title { margin: 0 0 $sp-2; font-weight: 800; font-size: clamp(17px, 5vw, 21px); line-height: 1.3; font-family: inherit; color: $subject-ink; }
.rc__sub { margin: 0 0 $sp-4; font-weight: 500; font-size: clamp(11px, 3vw, 12px); line-height: 1.5; font-family: inherit; color: rgba(23, 20, 26, .6); }

.rc__form { display: flex; gap: $sp-2; justify-content: center; flex-wrap: wrap; }
.rc__input {
  flex: 1 1 160px;
  max-width: 220px;
  padding: $sp-3 $sp-4;
  border-radius: $r-control;
  border: 1px solid rgba(23, 20, 26, .18);
  font-weight: 500; font-size: 12px; line-height: 1; font-family: inherit;
}
.rc__input.is-shake { animation: rc-shake $dur-quick $ease-out; }
@keyframes rc-shake {
  0%, 100% { transform: translateX(0); }
  25%      { transform: translateX(-5px); }
  75%      { transform: translateX(5px); }
}

.rc__submit {
  display: inline-flex; align-items: center; gap: $sp-1;
  padding: $sp-3 $sp-5;
  border-radius: $r-control;
  border: 0;
  background: $subject-blue-deep;
  color: $subject-cream;
  font-weight: 700; font-size: 12px; line-height: 1; font-family: inherit;
  cursor: pointer;
  transition: transform $duration $easing;
}
.rc__check {
  width: 14px; height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 24;
  stroke-dashoffset: 24;
  opacity: 0;
  transition: stroke-dashoffset $duration $easing, opacity $duration $easing;
}
.rc__form.is-done .rc__submit { transform: scale(1.04); }
.rc__form.is-done .rc__check { stroke-dashoffset: 0; opacity: 1; }
.rc__form.is-done .rc__submit-label::after { content: " 완료"; }

.rc__done { min-height: 14px; margin: $sp-2 0 0; font-weight: 600; font-size: 11px; line-height: 1.4; font-family: inherit; color: $color; }

// ── 데모 루프: 클릭 전까지 버튼이 맴돌고 체크가 그려졌다 지워진다 ──────────────
.rc.is-demo .rc__submit { animation: rc-pulse $dur-loop $easing infinite; }
.rc.is-demo .rc__check { animation: rc-check $dur-loop $easing infinite; }
@keyframes rc-pulse {
  0%, 55%, 100% { transform: scale(1); }
  70%           { transform: scale(1.06); }
}
@keyframes rc-check {
  0%, 55%  { stroke-dashoffset: 24; opacity: 0; }
  72%, 92% { stroke-dashoffset: 0; opacity: 1; }
  100%     { stroke-dashoffset: 24; opacity: 0; }
}

// ── 반응형: 세로가 짧은 화면에선 여백을 줄인다(BD9) ──────────────
@media (max-width: 340px), (max-height: 220px) {
  .rc__title { font-size: 15px; margin-bottom: $sp-1; }
  .rc__sub { margin-bottom: $sp-2; font-size: 10px; }
  .rc__input { padding: $sp-2 $sp-3; }
  .rc__submit { padding: $sp-2 $sp-4; }
  .rc__done { min-height: 0; margin-top: $sp-1; }
}

// ── 접근성 ──────────────────────────────────────────
@media (prefers-reduced-motion: reduce) {
  .rc__orb { animation: none !important; }
  .rc__submit, .rc__check, .rc__input { transition: none; animation: none !important; }
  .rc.is-demo .rc__submit, .rc.is-demo .rc__check { animation: none !important; }
}

@charset "UTF-8";
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);
}

.rc {
  position: relative;
  width: min(360px, 92vw);
  text-align: center;
  overflow: hidden;
  isolation: isolate;
}

.rc__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(20px);
  z-index: -1;
}

.rc__orb--1 {
  width: 140px;
  height: 140px;
  left: -30px;
  top: -20px;
  background: radial-gradient(circle, #2f6df6, transparent 70%);
  opacity: 0.16;
  animation: rc-drift 8s ease-in-out infinite;
}

.rc__orb--2 {
  width: 120px;
  height: 120px;
  right: -20px;
  bottom: -30px;
  background: radial-gradient(circle, #2f6df6, transparent 70%);
  opacity: 0.12;
  animation: rc-drift 7s ease-in-out infinite reverse;
}

@keyframes rc-drift {
  0%, 100% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(16px, -12px);
  }
}
.rc__title {
  margin: 0 0 8px;
  font-weight: 800;
  font-size: clamp(17px, 5vw, 21px);
  line-height: 1.3;
  font-family: inherit;
  color: #17141a;
}

.rc__sub {
  margin: 0 0 16px;
  font-weight: 500;
  font-size: clamp(11px, 3vw, 12px);
  line-height: 1.5;
  font-family: inherit;
  color: rgba(23, 20, 26, 0.6);
}

.rc__form {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.rc__input {
  flex: 1 1 160px;
  max-width: 220px;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid rgba(23, 20, 26, 0.18);
  font-weight: 500;
  font-size: 12px;
  line-height: 1;
  font-family: inherit;
}

.rc__input.is-shake {
  animation: rc-shake 220ms ease-out;
}

@keyframes rc-shake {
  0%, 100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-5px);
  }
  75% {
    transform: translateX(5px);
  }
}
.rc__submit {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 12px 20px;
  border-radius: 12px;
  border: 0;
  background: #0a4fe8;
  color: #fff7e6;
  font-weight: 700;
  font-size: 12px;
  line-height: 1;
  font-family: inherit;
  cursor: pointer;
  transition: transform 300ms cubic-bezier(0.2, 1.4, 0.4, 1);
}

.rc__check {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 24;
  stroke-dashoffset: 24;
  opacity: 0;
  transition: stroke-dashoffset 300ms cubic-bezier(0.2, 1.4, 0.4, 1), opacity 300ms cubic-bezier(0.2, 1.4, 0.4, 1);
}

.rc__form.is-done .rc__submit {
  transform: scale(1.04);
}

.rc__form.is-done .rc__check {
  stroke-dashoffset: 0;
  opacity: 1;
}

.rc__form.is-done .rc__submit-label::after {
  content: " 완료";
}

.rc__done {
  min-height: 14px;
  margin: 8px 0 0;
  font-weight: 600;
  font-size: 11px;
  line-height: 1.4;
  font-family: inherit;
  color: #2f6df6;
}

.rc.is-demo .rc__submit {
  animation: rc-pulse 2s cubic-bezier(0.2, 1.4, 0.4, 1) infinite;
}

.rc.is-demo .rc__check {
  animation: rc-check 2s cubic-bezier(0.2, 1.4, 0.4, 1) infinite;
}

@keyframes rc-pulse {
  0%, 55%, 100% {
    transform: scale(1);
  }
  70% {
    transform: scale(1.06);
  }
}
@keyframes rc-check {
  0%, 55% {
    stroke-dashoffset: 24;
    opacity: 0;
  }
  72%, 92% {
    stroke-dashoffset: 0;
    opacity: 1;
  }
  100% {
    stroke-dashoffset: 24;
    opacity: 0;
  }
}
@media (max-width: 340px), (max-height: 220px) {
  .rc__title {
    font-size: 15px;
    margin-bottom: 4px;
  }
  .rc__sub {
    margin-bottom: 8px;
    font-size: 10px;
  }
  .rc__input {
    padding: 8px 12px;
  }
  .rc__submit {
    padding: 8px 16px;
  }
  .rc__done {
    min-height: 0;
    margin-top: 4px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .rc__orb {
    animation: none !important;
  }
  .rc__submit, .rc__check, .rc__input {
    transition: none;
    animation: none !important;
  }
  .rc.is-demo .rc__submit, .rc.is-demo .rc__check {
    animation: none !important;
  }
}

// 실제 동작: 이메일 형식을 검사해 성공/오류를 실제로 표시한다.
var form = document.querySelector('.rc__form');
var input = document.querySelector('.rc__input');
var done = document.querySelector('.rc__done');
form.addEventListener('submit', function (e) {
  e.preventDefault();
  document.querySelector('.rc').classList.remove('is-demo');
  var ok = /^\S+@\S+\.\S+$/.test(input.value);
  if (ok) {
    form.classList.add('is-done');
    done.textContent = 'Registered — we sent a confirmation email.';
  } else {
    input.classList.remove('is-shake');
    void input.offsetWidth;
    input.classList.add('is-shake');
    done.textContent = 'Please enter a valid email address.';
  }
});

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

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

export default function RegisterCta({ duration = 300, easing = "cubic-bezier(.2,1.4,.4,1)", color = "#2f6df6" }: RegisterCtaProps) {
  const [email, setEmail] = useState("");
  const [status, setStatus] = useState<"idle" | "error" | "done">("idle");
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  function onSubmit(e: any) {
    e.preventDefault();
    const ok = /^\S+@\S+\.\S+$/.test(email);
    setStatus(ok ? "done" : "error");
  }

  return (
    <section className={styles.rc} style={vars}>
      <h2 className={styles.title}>지금 등록하고<br />얼리버드 혜택 받기</h2>
      <p className={styles.sub}>등록자에게 자료집과 네트워킹 초대장을 드립니다.</p>
      <form className={styles.form} onSubmit={onSubmit}>
        <input
          className={status === "error" ? `${styles.input} ${styles.shake}` : styles.input}
          type="email"
          placeholder="[email protected]"
          value={email}
          onChange={(e: any) => setEmail(e.target.value)}
        />
        <button type="submit" className={styles.submit}>
          {status === "done" ? "등록 완료" : "등록하기"}
          <svg className={styles.check} viewBox="0 0 24 24" aria-hidden="true" style={{ opacity: status === "done" ? 1 : 0 }}>
            <polyline points="5 13 10 18 19 7" />
          </svg>
        </button>
      </form>
      <p className={styles.done} role="status">
        {status === "done" ? "등록 완료 — 확인 메일을 보냈습니다." : status === "error" ? "올바른 이메일을 입력해 주세요." : ""}
      </p>
    </section>
  );
}