01下部固定バナーのスライドアップ

<main class="stage">
  <div class="cb is-demo">
    <div class="cb__page" aria-hidden="true">
      <div class="cb__topbar">
        <span class="cb__brand"></span>
        <span class="cb__nav"></span>
        <span class="cb__nav"></span>
      </div>
      <div class="cb__lines">
        <span class="cb__line cb__line--head"></span>
        <span class="cb__line"></span>
        <span class="cb__line"></span>
        <span class="cb__line cb__line--short"></span>
      </div>
    </div>

    <p class="cb__chip" hidden><span class="cb__chip-k">保存済み</span><b class="cb__chip-v"></b></p>

    <section class="cb__banner" aria-label="Cookieの同意">
      <span class="cb__ic" aria-hidden="true"><svg viewBox="0 0 256 256" width="20" height="20"><g fill="currentColor"><path d="M224 128a96 96 0 1 1-96-96a48 48 0 0 0 48 48a48 48 0 0 0 48 48" opacity=".2"/><path d="M164.49 163.51a12 12 0 1 1-17 0a12 12 0 0 1 17 0m-81-8a12 12 0 1 0 17 0a12 12 0 0 0-16.98 0Zm9-39a12 12 0 1 0-17 0a12 12 0 0 0 17-.02Zm48-1a12 12 0 1 0 0 17a12 12 0 0 0 0-17M232 128A104 104 0 1 1 128 24a8 8 0 0 1 8 8a40 40 0 0 0 40 40a8 8 0 0 1 8 8a40 40 0 0 0 40 40a8 8 0 0 1 8 8m-16.31 7.39A56.13 56.13 0 0 1 168.5 87.5a56.13 56.13 0 0 1-47.89-47.19a88 88 0 1 0 95.08 95.08"/></g></svg></span>
      <div class="cb__text">
        <strong class="cb__title">このサイトはCookieを使用します</strong>
        <span class="cb__desc">分析とパーソナライズに使います</span>
      </div>
      <div class="cb__acts">
        <button class="cb__btn" type="button" data-v="min">必須のみ</button>
        <button class="cb__btn cb__btn--ok" type="button" data-v="all">すべて許可</button>
      </div>
    </section>
  </div>
</main>

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

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

@include stage($stage-paper);

// ── 무대: 움직이지 않는 가짜 페이지 한 장. 움직이는 건 배너뿐이다 ──
.cb {
  position: relative;
  box-sizing: border-box;
  width: min(100%, 420px);
  height: clamp(156px, 52vw, 236px);
  overflow: hidden;
  border: 1px solid rgba(23, 20, 26, .10);
  border-radius: $r-card;
  background: rgba(23, 20, 26, .04);
  color: $subject-ink;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

.cb__page { position: absolute; inset: 0; }

.cb__topbar {
  display: flex;
  align-items: center;
  gap: $sp-2;
  padding: $sp-2 $sp-3;
  background: $stage-paper;
  border-bottom: 1px solid rgba(23, 20, 26, .08);
}
.cb__brand { width: 44px; height: 8px; border-radius: $r-xs; background: rgba(23, 20, 26, .24); }
.cb__nav   { width: 28px; height: 6px; border-radius: $r-xs; background: rgba(23, 20, 26, .12); }
.cb__nav:first-of-type { margin-left: auto; }

.cb__lines { display: grid; gap: $sp-2; padding: $sp-4 $sp-3; }
.cb__line {
  height: 8px;
  border-radius: $r-xs;
  background: rgba(23, 20, 26, .12);
}
.cb__line--head { height: 12px; width: 62%; background: rgba(23, 20, 26, .20); }
.cb__line--short { width: 48%; }

// 이전 선택 표시 칩
.cb__chip {
  position: absolute;
  top: $sp-8;
  left: $sp-3;
  display: inline-flex;
  align-items: center;
  gap: $sp-1;
  margin: 0;
  padding: $sp-1 $sp-2;
  border-radius: $r-pill;
  background: rgba(47, 109, 246, .10);
  color: $color;
  font-size: clamp(9px, 2.6vw, 11px);
  font-weight: 700;
  line-height: 1.2;
}
.cb__chip[hidden] { display: none; }
.cb__chip-k::after { content: ":"; }

// ── 배너: 아래에서 올라온다 ──
.cb__banner {
  position: absolute;
  left: $sp-2;
  right: $sp-2;
  bottom: $sp-2;
  box-sizing: border-box;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: $sp-2 $sp-3;
  padding: $sp-3;
  border: 1px solid rgba(23, 20, 26, .10);
  border-radius: $r-card;
  background: $stage-paper;
  box-shadow: 0 2px 8px rgba(23, 20, 26, .10);
  transform: translateY(0);
  opacity: 1;
  transition: transform $dur-base $easing, opacity $dur-base $easing;
}
.cb__banner.is-out {
  transform: translateY(calc(100% + #{$sp-2}));
  opacity: 0;
}

.cb__ic {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: $r-pill;
  background: rgba(47, 109, 246, .12);
  color: $color;
}

.cb__text { flex: 1 1 128px; min-width: 0; display: grid; gap: $sp-1; }
.cb__title {
  font-size: clamp(11px, 3vw, 13px);
  font-weight: 700;
  line-height: 1.35;
  word-break: keep-all;      // 한국어가 낱말 가운데서 끊기지 않게
  overflow-wrap: anywhere;
}
.cb__desc {
  font-size: clamp(9px, 2.6vw, 11px);
  line-height: 1.35;
  color: rgba($stage-ink, .72);
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.cb__acts { flex: 0 0 auto; display: flex; gap: $sp-2; }
.cb__btn {
  border: 1px solid rgba(23, 20, 26, .14);
  border-radius: $r-control;
  background: $stage-paper;
  color: $subject-ink;
  font-family: inherit;
  font-size: clamp(10px, 2.8vw, 12px);
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  padding: $sp-2 $sp-3;
  cursor: pointer;
  transition: background $dur-quick $ease-out, transform $dur-quick $ease-out;
}
.cb__btn--ok {
  border-color: transparent;
  background: $subject-blue-deep;
  color: $subject-cream;
}
.cb__btn:hover, .cb__btn:focus-visible { background: rgba(23, 20, 26, .06); }
.cb__btn--ok:hover, .cb__btn--ok:focus-visible { background: rgba(47, 109, 246, .84); }
.cb__btn:active { transform: translateY(1px); }

// ── 자동 루프: 올라왔다 머물다 다시 내려간다. 0% 와 100% 가 같아 텔레포트가 없다 ──
.cb.is-demo .cb__banner { animation: cb-slide $dur-loop $easing infinite; }
@keyframes cb-slide {
  0%        { transform: translateY(calc(100% + #{$sp-2})); opacity: 0; }
  22%, 72%  { transform: translateY(0); opacity: 1; }
  100%      { transform: translateY(calc(100% + #{$sp-2})); opacity: 0; }
}

@media (max-width: 340px) {
  .cb__lines { padding: $sp-3 $sp-3; gap: $sp-1; }
  .cb__banner { gap: $sp-2; padding: $sp-2; }
  .cb__ic { width: 24px; height: 24px; }
  .cb__acts { width: 100%; }
  .cb__btn { flex: 1 1 auto; padding: $sp-1 $sp-2; }
}

@media (prefers-reduced-motion: reduce) {
  .cb.is-demo .cb__banner { animation: none !important; transform: translateY(0); opacity: 1; }
  .cb__banner, .cb__btn { transition: none; }
}

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);
}

.cb {
  position: relative;
  box-sizing: border-box;
  width: min(100%, 420px);
  height: clamp(156px, 52vw, 236px);
  overflow: hidden;
  border: 1px solid rgba(23, 20, 26, 0.1);
  border-radius: 16px;
  background: rgba(23, 20, 26, 0.04);
  color: #17141a;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

.cb__page {
  position: absolute;
  inset: 0;
}

.cb__topbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: #ffffff;
  border-bottom: 1px solid rgba(23, 20, 26, 0.08);
}

.cb__brand {
  width: 44px;
  height: 8px;
  border-radius: 4px;
  background: rgba(23, 20, 26, 0.24);
}

.cb__nav {
  width: 28px;
  height: 6px;
  border-radius: 4px;
  background: rgba(23, 20, 26, 0.12);
}

.cb__nav:first-of-type {
  margin-left: auto;
}

.cb__lines {
  display: grid;
  gap: 8px;
  padding: 16px 12px;
}

.cb__line {
  height: 8px;
  border-radius: 4px;
  background: rgba(23, 20, 26, 0.12);
}

.cb__line--head {
  height: 12px;
  width: 62%;
  background: rgba(23, 20, 26, 0.2);
}

.cb__line--short {
  width: 48%;
}

.cb__chip {
  position: absolute;
  top: 32px;
  left: 12px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(47, 109, 246, 0.1);
  color: #2f6df6;
  font-size: clamp(9px, 2.6vw, 11px);
  font-weight: 700;
  line-height: 1.2;
}

.cb__chip[hidden] {
  display: none;
}

.cb__chip-k::after {
  content: ":";
}

.cb__banner {
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 8px;
  box-sizing: border-box;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 12px;
  border: 1px solid rgba(23, 20, 26, 0.1);
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 2px 8px rgba(23, 20, 26, 0.1);
  transform: translateY(0);
  opacity: 1;
  transition: transform 300ms cubic-bezier(0.2, 0.8, 0.2, 1), opacity 300ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.cb__banner.is-out {
  transform: translateY(calc(100% + 8px));
  opacity: 0;
}

.cb__ic {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: rgba(47, 109, 246, 0.12);
  color: #2f6df6;
}

.cb__text {
  flex: 1 1 128px;
  min-width: 0;
  display: grid;
  gap: 4px;
}

.cb__title {
  font-size: clamp(11px, 3vw, 13px);
  font-weight: 700;
  line-height: 1.35;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.cb__desc {
  font-size: clamp(9px, 2.6vw, 11px);
  line-height: 1.35;
  color: rgba(23, 20, 26, 0.72);
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.cb__acts {
  flex: 0 0 auto;
  display: flex;
  gap: 8px;
}

.cb__btn {
  border: 1px solid rgba(23, 20, 26, 0.14);
  border-radius: 12px;
  background: #ffffff;
  color: #17141a;
  font-family: inherit;
  font-size: clamp(10px, 2.8vw, 12px);
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  padding: 8px 12px;
  cursor: pointer;
  transition: background 220ms ease-out, transform 220ms ease-out;
}

.cb__btn--ok {
  border-color: transparent;
  background: #0a4fe8;
  color: #fff7e6;
}

.cb__btn:hover, .cb__btn:focus-visible {
  background: rgba(23, 20, 26, 0.06);
}

.cb__btn--ok:hover, .cb__btn--ok:focus-visible {
  background: rgba(47, 109, 246, 0.84);
}

.cb__btn:active {
  transform: translateY(1px);
}

.cb.is-demo .cb__banner {
  animation: cb-slide 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

@keyframes cb-slide {
  0% {
    transform: translateY(calc(100% + 8px));
    opacity: 0;
  }
  22%, 72% {
    transform: translateY(0);
    opacity: 1;
  }
  100% {
    transform: translateY(calc(100% + 8px));
    opacity: 0;
  }
}
@media (max-width: 340px) {
  .cb__lines {
    padding: 12px 12px;
    gap: 4px;
  }
  .cb__banner {
    gap: 8px;
    padding: 8px;
  }
  .cb__ic {
    width: 24px;
    height: 24px;
  }
  .cb__acts {
    width: 100%;
  }
  .cb__btn {
    flex: 1 1 auto;
    padding: 4px 8px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .cb.is-demo .cb__banner {
    animation: none !important;
    transform: translateY(0);
    opacity: 1;
  }
  .cb__banner, .cb__btn {
    transition: none;
  }
}

// 실제 동작: 버튼을 누르면 배너가 아래로 빠지고 고른 값이 localStorage 에 남는다.
// 칩 글자는 누른 버튼의 라벨을 그대로 복사한다 — 스크립트 안에 문구를 두 번 적지 않는다.
var cb = document.querySelector('.cb');
var chip = cb.querySelector('.cb__chip');
var chipV = cb.querySelector('.cb__chip-v');
var banner = cb.querySelector('.cb__banner');
var KEY = 'gd-consent-01';

function load() {
  try { return localStorage.getItem(KEY); } catch (e) { return null; }
}
function save(v) {
  try { localStorage.setItem(KEY, v); } catch (e) {}
}
function mark(v) {
  var b = cb.querySelector('.cb__btn[data-v="' + v + '"]');
  if (!b) return;
  chipV.textContent = b.textContent;
  chip.hidden = false;
}
function pick(e) {
  var v = e.currentTarget.getAttribute('data-v');
  save(v);
  cb.classList.remove('is-demo');
  banner.classList.add('is-out');
  mark(v);
}

var btns = cb.querySelectorAll('.cb__btn');
for (var i = 0; i < btns.length; i++) btns[i].addEventListener('click', pick);

// 저장값이 있어도 배너는 다시 띄운다(루프가 필요하다) — 대신 이전 선택을 칩으로 보여준다
var saved = load();
if (saved) mark(saved);

import { useEffect, useState } from "react";
import type { CSSProperties } from "react";
import styles from "./BottomBarSlideUp.module.scss";

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

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

const KEY = "gd-consent-01";
const LABEL: { [k: string]: string } = {
  min: "Necessary only",
  all: "Accept all",
};

function load(): string {
  try {
    return localStorage.getItem(KEY) || "";
  } catch (e) {
    return "";
  }
}

export default function BottomBarSlideUp({
  duration = 600,
  easing = "cubic-bezier(.2,.8,.2,1)",
  color = "#2f6df6",
}: BottomBarSlideUpProps) {
  const [saved, setSaved] = useState<string>("");
  const [out, setOut] = useState<boolean>(false);
  const [live, setLive] = useState<boolean>(true);

  // 저장값이 있어도 배너는 다시 띄운다(루프가 필요하다) — 이전 선택만 칩으로 보여준다
  useEffect(() => {
    setSaved(load());
  }, []);

  const vars: Vars = {
    "--duration": `${duration}ms`,
    "--easing": easing,
    "--color": color,
  };

  function pick(v: string): void {
    try {
      localStorage.setItem(KEY, v);
    } catch (e) {
      /* 샌드박스에서 던진다 */
    }
    setSaved(v);
    setLive(false);
    setOut(true);
  }

  return (
    <div className={`${styles.cb} ${live ? styles.isDemo : ""}`} style={vars}>
      <div className={styles.page} aria-hidden="true">
        <div className={styles.topbar}>
          <span className={styles.brand} />
          <span className={styles.nav} />
          <span className={styles.nav} />
        </div>
        <div className={styles.lines}>
          <span className={`${styles.line} ${styles.lineHead}`} />
          <span className={styles.line} />
          <span className={styles.line} />
          <span className={`${styles.line} ${styles.lineShort}`} />
        </div>
      </div>

      {saved ? (
        <p className={styles.chip}>
          <span className={styles.chipK}>Saved</span>
          <b className={styles.chipV}>{LABEL[saved]}</b>
        </p>
      ) : null}

      <section
        className={`${styles.banner} ${out ? styles.isOut : ""}`}
        aria-label="Cookie consent"
      >
        <span className={styles.ic} aria-hidden="true">
          <svg viewBox="0 0 256 256" width="20" height="20">
            <g fill="currentColor">
              <path
                d="M224 128a96 96 0 1 1-96-96a48 48 0 0 0 48 48a48 48 0 0 0 48 48"
                opacity=".2"
              />
              <path d="M164.49 163.51a12 12 0 1 1-17 0a12 12 0 0 1 17 0m-81-8a12 12 0 1 0 17 0a12 12 0 0 0-16.98 0Zm9-39a12 12 0 1 0-17 0a12 12 0 0 0 17-.02Zm48-1a12 12 0 1 0 0 17a12 12 0 0 0 0-17M232 128A104 104 0 1 1 128 24a8 8 0 0 1 8 8a40 40 0 0 0 40 40a8 8 0 0 1 8 8a40 40 0 0 0 40 40a8 8 0 0 1 8 8m-16.31 7.39A56.13 56.13 0 0 1 168.5 87.5a56.13 56.13 0 0 1-47.89-47.19a88 88 0 1 0 95.08 95.08" />
            </g>
          </svg>
        </span>

        <div className={styles.text}>
          <strong className={styles.title}>This site uses cookies</strong>
          <span className={styles.desc}>For analytics and personalised content</span>
        </div>

        <div className={styles.acts}>
          <button className={styles.btn} type="button" onClick={() => pick("min")}>
            {LABEL.min}
          </button>
          <button
            className={`${styles.btn} ${styles.btnOk}`}
            type="button"
            onClick={() => pick("all")}
          >
            {LABEL.all}
          </button>
        </div>
      </section>
    </div>
  );
}