01City guide grid card

<main class="stage">
<ul class="cg is-demo" id="cg">
  <li class="cg__card">
    <div class="cg__shot cg__shot--a">
      <span class="cg__band">
        <span class="cg__ic" aria-hidden="true"><svg xmlns="http://www.w3.org/2000/svg" width="1em" height="1em" viewBox="0 0 256 256"><g fill="currentColor"><path d="M128 24a80 80 0 0 0-80 80c0 72 80 128 80 128s80-56 80-128a80 80 0 0 0-80-80m0 112a32 32 0 1 1 32-32a32 32 0 0 1-32 32" opacity=".2"/><path d="M128 64a40 40 0 1 0 40 40a40 40 0 0 0-40-40m0 64a24 24 0 1 1 24-24a24 24 0 0 1-24 24m0-112a88.1 88.1 0 0 0-88 88c0 31.4 14.51 64.68 42 96.25a254.2 254.2 0 0 0 41.45 38.3a8 8 0 0 0 9.18 0a254.2 254.2 0 0 0 41.37-38.3c27.45-31.57 42-64.85 42-96.25a88.1 88.1 0 0 0-88-88m0 206c-16.53-13-72-60.75-72-118a72 72 0 0 1 144 0c0 57.23-55.47 105-72 118"/></g></svg></span>Day trip</span>
    </div>
    <h3 class="cg__name">Busan</h3>
    <p class="cg__line">Beach and market, one stop apart</p>
    <a class="cg__link" href="#busan">Open the Busan guide</a>
  </li>
  <li class="cg__card">
    <div class="cg__shot cg__shot--b">
      <span class="cg__band">
        <span class="cg__ic" aria-hidden="true"><svg xmlns="http://www.w3.org/2000/svg" width="1em" height="1em" viewBox="0 0 256 256"><g fill="currentColor"><path d="M128 24a80 80 0 0 0-80 80c0 72 80 128 80 128s80-56 80-128a80 80 0 0 0-80-80m0 112a32 32 0 1 1 32-32a32 32 0 0 1-32 32" opacity=".2"/><path d="M128 64a40 40 0 1 0 40 40a40 40 0 0 0-40-40m0 64a24 24 0 1 1 24-24a24 24 0 0 1-24 24m0-112a88.1 88.1 0 0 0-88 88c0 31.4 14.51 64.68 42 96.25a254.2 254.2 0 0 0 41.45 38.3a8 8 0 0 0 9.18 0a254.2 254.2 0 0 0 41.37-38.3c27.45-31.57 42-64.85 42-96.25a88.1 88.1 0 0 0-88-88m0 206c-16.53-13-72-60.75-72-118a72 72 0 0 1 144 0c0 57.23-55.47 105-72 118"/></g></svg></span>2 days</span>
    </div>
    <h3 class="cg__name">Jeonju</h3>
    <p class="cg__line">A different kitchen down each alley</p>
    <a class="cg__link" href="#jeonju">Open the Jeonju guide</a>
  </li>
  <li class="cg__card">
    <div class="cg__shot cg__shot--c">
      <span class="cg__band">
        <span class="cg__ic" aria-hidden="true"><svg xmlns="http://www.w3.org/2000/svg" width="1em" height="1em" viewBox="0 0 256 256"><g fill="currentColor"><path d="M128 24a80 80 0 0 0-80 80c0 72 80 128 80 128s80-56 80-128a80 80 0 0 0-80-80m0 112a32 32 0 1 1 32-32a32 32 0 0 1-32 32" opacity=".2"/><path d="M128 64a40 40 0 1 0 40 40a40 40 0 0 0-40-40m0 64a24 24 0 1 1 24-24a24 24 0 0 1-24 24m0-112a88.1 88.1 0 0 0-88 88c0 31.4 14.51 64.68 42 96.25a254.2 254.2 0 0 0 41.45 38.3a8 8 0 0 0 9.18 0a254.2 254.2 0 0 0 41.37-38.3c27.45-31.57 42-64.85 42-96.25a88.1 88.1 0 0 0-88-88m0 206c-16.53-13-72-60.75-72-118a72 72 0 0 1 144 0c0 57.23-55.47 105-72 118"/></g></svg></span>Weekend</span>
    </div>
    <h3 class="cg__name">Sokcho</h3>
    <p class="cg__line">Sea and mountains in one trip</p>
    <a class="cg__link" href="#sokcho">Open the Sokcho guide</a>
  </li>
</ul>
</main>

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

// 도시 소개 그리드 카드 — 이 편의 주인공은 효과가 아니라 **배치**다.
// grid-template-columns 로 세 칸을 먼저 정하고, 카드는 자기 순서(animation-delay)에만 올라온다.
// 지연이 걸린 루프에는 animation-fill-mode: backwards 가 반드시 함께 간다 —
// 없으면 지연 구간에 요소의 작성 상태(= 도착 상태)가 0프레임에 한 번 번쩍인다.
// 호버 리프트·그림자 확대 같은 카드 효과는 이 편의 축이 아니라서 쓰지 않는다.

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

// 잉크 무대 위에서 한 단계 밝은 카드 면 (토큰 밖 실측값 — 크림 글자 15.1:1)
$panel: #241f2a;
$rise: 14px;
// 2초 루프 안에서 "카드가 올라오는" 구간의 길이. $duration 을 절반으로 줄이면 구간도 절반이 된다
$enter: math.div($duration, $dur-loop) * 100%;

@include stage($stage-ink);

.cg {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: $sp-2;
  box-sizing: border-box; width: min(100%, 440px);
  margin: 0; padding: 0; list-style: none;
}

.cg__card {
  display: flex; flex-direction: column; gap: $sp-1;
  box-sizing: border-box;
  padding: $sp-2;
  border-radius: $r-card;
  background: $panel;
  border-top: 2px solid $color;
  // 미리보기 루프를 뗀 순간 카드가 제자리로 부드럽게 앉는다 (애니메이션이 사라진 자리를 transition 이 받는다)
  transition: transform $duration $easing;
}

// 사진이 들어갈 자리. 지금은 토큰 그라디언트 (run/081/_이미지후보.A.json 에 기록)
.cg__shot {
  position: relative; overflow: hidden;
  height: clamp(40px, 13vw, 62px);
  border-radius: $r-sm;
  background:
    radial-gradient(circle at 28% 22%, rgba(255, 255, 255, .26), rgba(255, 255, 255, 0) 62%),
    linear-gradient(152deg, $color, rgba($color, .22));
}
.cg__shot--b { background-position: 70% 30%, 0 0; }
.cg__shot--c { background-position: 45% 70%, 0 0; }

// 라벨 띠 — 사진 아래에서 위로 올라온다. 글자는 크림 면 위 잉크(17.1:1)라 $color 가 바뀌어도 안전하다
.cg__band {
  position: absolute; left: 6px; bottom: 6px;
  display: inline-flex; align-items: center; gap: $sp-1;
  padding: $sp-1 $sp-2;
  border-radius: $r-pill;
  background: $subject-cream; color: $subject-ink;
  font-weight: 700; font-size: clamp(9px, 2.4vw, 10px); line-height: 1.2;
  white-space: nowrap;
}
.cg__ic { display: inline-grid; place-items: center; color: $color; font-size: 11px; }

.cg__name {
  margin: 0;
  color: $subject-cream;
  font-weight: 700; font-size: clamp(12px, 3.4vw, 15px); line-height: 1.25;
}
.cg__line {
  margin: 0;
  color: rgba($subject-cream, .78);
  font-weight: 500; font-size: clamp(9px, 2.6vw, 11px); line-height: 1.35;
}

// 카드 전체가 아니라 링크가 목적지 이름을 말한다 (WCAG 2.4.4 link purpose)
.cg__link {
  margin-top: auto;
  color: $subject-cream;
  font-weight: 700; font-size: clamp(9px, 2.6vw, 11px); line-height: 1.3;
  text-decoration: underline; text-underline-offset: 2px;
}
.cg__link:focus-visible { outline: 2px solid $subject-cream; outline-offset: 2px; border-radius: $r-xs; }

// ── 격자 미리보기 루프 (2초). 카드는 0 / .16 / .32초 순서로 올라오고 띠가 뒤따른다.
// 복귀(다시 내려감)는 88% 안에 끝난다 — 24프레임의 마지막 샘플은 95.8% 지점이다.
.cg.is-demo .cg__card {
  animation-name: cgRise;
  animation-duration: $dur-loop;
  animation-timing-function: $easing;
  animation-iteration-count: infinite;
  animation-fill-mode: backwards;
}
.cg.is-demo .cg__card:nth-child(2) { animation-delay: .16s; }
.cg.is-demo .cg__card:nth-child(3) { animation-delay: .32s; }

.cg.is-demo .cg__band {
  animation-name: cgBand;
  animation-duration: $dur-loop;
  animation-timing-function: $easing;
  animation-iteration-count: infinite;
  animation-fill-mode: backwards;
}
.cg.is-demo .cg__card:nth-child(2) .cg__band { animation-delay: .16s; }
.cg.is-demo .cg__card:nth-child(3) .cg__band { animation-delay: .32s; }

@keyframes cgRise {
  0% { transform: translateY($rise); }
  #{$enter} { transform: translateY(0); }
  74% { transform: translateY(0); }
  88%, 100% { transform: translateY($rise); }
}
@keyframes cgBand {
  0%, #{$enter * .4} { transform: translateY(180%); }
  #{$enter * 1.4} { transform: translateY(0); }
  74% { transform: translateY(0); }
  86%, 100% { transform: translateY(180%); }
}

// ── 좁은 화면: 320×200 무대에서도 세 칸을 지킨다 (열을 줄이지 않는 게 이 항목의 요점)
@media (max-width: 340px) {
  .cg { gap: $sp-1; }
  .cg__card { gap: 0; padding: $sp-1; }
  .cg__band { padding: 0 $sp-1; left: 4px; bottom: 4px; }
  .cg__ic { font-size: 9px; }
}

@media (prefers-reduced-motion: reduce) {
  .cg.is-demo .cg__card,
  .cg.is-demo .cg__band {
    animation: none !important;
    transform: none !important;
  }
}

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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #17141a;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.cg {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  box-sizing: border-box;
  width: min(100%, 440px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.cg__card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-sizing: border-box;
  padding: 8px;
  border-radius: 16px;
  background: #241f2a;
  border-top: 2px solid #2f6df6;
  transition: transform 600ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.cg__shot {
  position: relative;
  overflow: hidden;
  height: clamp(40px, 13vw, 62px);
  border-radius: 8px;
  background: radial-gradient(circle at 28% 22%, rgba(255, 255, 255, 0.26), rgba(255, 255, 255, 0) 62%), linear-gradient(152deg, #2f6df6, rgba(47, 109, 246, 0.22));
}

.cg__shot--b {
  background-position: 70% 30%, 0 0;
}

.cg__shot--c {
  background-position: 45% 70%, 0 0;
}

.cg__band {
  position: absolute;
  left: 6px;
  bottom: 6px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: 999px;
  background: #fff7e6;
  color: #17141a;
  font-weight: 700;
  font-size: clamp(9px, 2.4vw, 10px);
  line-height: 1.2;
  white-space: nowrap;
}

.cg__ic {
  display: inline-grid;
  place-items: center;
  color: #2f6df6;
  font-size: 11px;
}

.cg__name {
  margin: 0;
  color: #fff7e6;
  font-weight: 700;
  font-size: clamp(12px, 3.4vw, 15px);
  line-height: 1.25;
}

.cg__line {
  margin: 0;
  color: rgba(255, 247, 230, 0.78);
  font-weight: 500;
  font-size: clamp(9px, 2.6vw, 11px);
  line-height: 1.35;
}

.cg__link {
  margin-top: auto;
  color: #fff7e6;
  font-weight: 700;
  font-size: clamp(9px, 2.6vw, 11px);
  line-height: 1.3;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.cg__link:focus-visible {
  outline: 2px solid #fff7e6;
  outline-offset: 2px;
  border-radius: 4px;
}

.cg.is-demo .cg__card {
  animation-name: cgRise;
  animation-duration: 2s;
  animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
  animation-iteration-count: infinite;
  animation-fill-mode: backwards;
}

.cg.is-demo .cg__card:nth-child(2) {
  animation-delay: 0.16s;
}

.cg.is-demo .cg__card:nth-child(3) {
  animation-delay: 0.32s;
}

.cg.is-demo .cg__band {
  animation-name: cgBand;
  animation-duration: 2s;
  animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
  animation-iteration-count: infinite;
  animation-fill-mode: backwards;
}

.cg.is-demo .cg__card:nth-child(2) .cg__band {
  animation-delay: 0.16s;
}

.cg.is-demo .cg__card:nth-child(3) .cg__band {
  animation-delay: 0.32s;
}

@keyframes cgRise {
  0% {
    transform: translateY(14px);
  }
  30% {
    transform: translateY(0);
  }
  74% {
    transform: translateY(0);
  }
  88%, 100% {
    transform: translateY(14px);
  }
}
@keyframes cgBand {
  0%, 12% {
    transform: translateY(180%);
  }
  42% {
    transform: translateY(0);
  }
  74% {
    transform: translateY(0);
  }
  86%, 100% {
    transform: translateY(180%);
  }
}
@media (max-width: 340px) {
  .cg {
    gap: 4px;
  }
  .cg__card {
    gap: 0;
    padding: 4px;
  }
  .cg__band {
    padding: 0 4px;
    left: 4px;
    bottom: 4px;
  }
  .cg__ic {
    font-size: 9px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .cg.is-demo .cg__card,
  .cg.is-demo .cg__band {
    animation: none !important;
    transform: none !important;
  }
}

// 사람이 만지면 미리보기 루프를 뗀다 — 뗀 뒤에도 카드는 제자리에 그대로 선다
var cityGrid = document.getElementById('cg');
['pointerdown', 'focusin'].forEach(function (evt) {
  cityGrid.addEventListener(evt, function () { cityGrid.classList.remove('is-demo'); });
});

// CityGuideGrid — vanilla 판(run/081/demo/01-content-card-city-guide/index.html) 의 React 포트.
// grid-template-columns 로 세 칸을 먼저 정하고, 카드는 animation-delay 로 자기 순서에만 올라온다.
// 카드 전체가 아니라 링크가 목적지 이름을 말한다 (WCAG 2.4.4).
import { useState } from "react";
import type { CSSProperties } from "react";
import styles from "./CityGuideGrid.module.scss";

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

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

type City = { band: string; name: string; line: string; link: string; href: string; shot: string };

// 링크 글자는 조각으로 잇지 않는다 — 언어팩 사전의 키가 문장 전체여야 en·ja 판이 반쪽으로 안 나간다
const CITIES: City[] = [
  { band: "당일치기", name: "부산", line: "바다와 시장이 한 정류장", link: "부산 가이드 열기", href: "#busan", shot: "shot--a" },
  { band: "1박 2일", name: "전주", line: "골목마다 다른 밥집", link: "전주 가이드 열기", href: "#jeonju", shot: "shot--b" },
  { band: "주말 코스", name: "속초", line: "바다와 산을 한 번에", link: "속초 가이드 열기", href: "#sokcho", shot: "shot--c" },
];

function MapPin() {
  return (
    <svg xmlns="http://www.w3.org/2000/svg" width="1em" height="1em" viewBox="0 0 256 256">
      <g fill="currentColor">
        <path d="M128 24a80 80 0 0 0-80 80c0 72 80 128 80 128s80-56 80-128a80 80 0 0 0-80-80m0 112a32 32 0 1 1 32-32a32 32 0 0 1-32 32" opacity=".2" />
        <path d="M128 64a40 40 0 1 0 40 40a40 40 0 0 0-40-40m0 64a24 24 0 1 1 24-24a24 24 0 0 1-24 24m0-112a88.1 88.1 0 0 0-88 88c0 31.4 14.51 64.68 42 96.25a254.2 254.2 0 0 0 41.45 38.3a8 8 0 0 0 9.18 0a254.2 254.2 0 0 0 41.37-38.3c27.45-31.57 42-64.85 42-96.25a88.1 88.1 0 0 0-88-88m0 206c-16.53-13-72-60.75-72-118a72 72 0 0 1 144 0c0 57.23-55.47 105-72 118" />
      </g>
    </svg>
  );
}

export default function CityGuideGrid(props: CityGuideGridProps) {
  const duration = props.duration ?? 600;
  const easing = props.easing ?? "cubic-bezier(.2, .8, .2, 1)";
  const color = props.color ?? "#2f6df6";
  const [preview, setPreview] = useState<boolean>(true);

  const vars: Vars = { "--duration": duration + "ms", "--easing": easing, "--color": color };
  const stop = () => setPreview(false);

  return (
    <main className={styles.stage}>
      <ul
        className={styles.cg + (preview ? " " + styles.isDemo : "")}
        style={vars}
        onPointerDown={stop}
        onFocus={stop}
      >
        {CITIES.map((city) => (
          <li className={styles.card} key={city.name}>
            <div className={styles.shot + " " + styles[city.shot]}>
              <span className={styles.band}>
                <span className={styles.ic} aria-hidden="true"><MapPin /></span>
                {city.band}
              </span>
            </div>
            <h3 className={styles.name}>{city.name}</h3>
            <p className={styles.line}>{city.line}</p>
            <a className={styles.link} href={city.href}>{city.link}</a>
          </li>
        ))}
      </ul>
    </main>
  );
}