07先頭強調レイアウト

<main class="stage">
  <ul class="gallery is-demo" aria-label="写真ギャラリー">
    <li class="tile tile--featured" tabindex="0"></li>
    <li class="tile tile--small" tabindex="0"></li>
    <li class="tile tile--small" tabindex="0"></li>
  </ul>
</main>

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

$duration: $dur-base;                                  // 강조 타일이 커지는 시간
$easing: $ease-spring;
$color: $subject-cream;                                 // 타일 그러데이션

@include stage($stage-orange);
.stage { padding: clamp(8px, 2.4vw, 16px); }

.gallery {
  display: grid;
  grid-template-columns: repeat(3, 56px);
  grid-template-rows: repeat(2, 56px);
  gap: $sp-2;
  list-style: none;
  margin: 0;
  padding: 0;
  width: 184px;
  max-width: 100%;
}
.tile {
  border-radius: $r-sm;
  outline: none;
  cursor: pointer;
  box-shadow: $shadow-press;
  transform: scale(1);
  transition: transform $duration $easing, box-shadow $duration $easing;
}
.tile--featured {
  grid-column: 1 / 3;
  grid-row: 1 / 3;
  background: linear-gradient(150deg, $color 0%, $stage-orange 100%);
}
.tile--small:nth-of-type(2) { background: linear-gradient(60deg, $stage-ink 0%, $color 100%); }
.tile--small:nth-of-type(3) { background: linear-gradient(200deg, $color 0%, $stage-ink 100%); }

.tile:hover, .tile:focus-visible, .tile:active {
  transform: scale(1.04);
  box-shadow: $shadow-raised;
}

.gallery.is-demo .tile--featured { animation: pop-loop-lg $dur-loop $easing infinite; }
.gallery.is-demo .tile--small { animation: pop-loop-sm $dur-loop $easing infinite; }
.gallery.is-demo .tile--small:nth-of-type(3) { animation-delay: -0.3s; }

@keyframes pop-loop-lg {
  0%, 8%    { transform: scale(1); box-shadow: $shadow-press; }
  30%, 50%  { transform: scale(1.03); box-shadow: $shadow-raised; }
  70%, 100% { transform: scale(1); box-shadow: $shadow-press; }
}
@keyframes pop-loop-sm {
  0%, 40%   { transform: scale(1); box-shadow: $shadow-press; }
  60%, 80%  { transform: scale(1.06); box-shadow: $shadow-raised; }
  100%      { transform: scale(1); box-shadow: $shadow-press; }
}

@media (hover: none) {
  .tile:active { transform: scale(1.04); box-shadow: $shadow-raised; }
}
@media (prefers-reduced-motion: reduce) {
  .tile { transition: none; }
  .gallery.is-demo .tile--featured, .gallery.is-demo .tile--small { animation: 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 {
  padding: clamp(8px, 2.4vw, 16px);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(3, 56px);
  grid-template-rows: repeat(2, 56px);
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  width: 184px;
  max-width: 100%;
}

.tile {
  border-radius: 8px;
  outline: none;
  cursor: pointer;
  box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
  transform: scale(1);
  transition: transform 300ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 300ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.tile--featured {
  grid-column: 1/3;
  grid-row: 1/3;
  background: linear-gradient(150deg, #fff7e6 0%, #ff4d1f 100%);
}

.tile--small:nth-of-type(2) {
  background: linear-gradient(60deg, #17141a 0%, #fff7e6 100%);
}

.tile--small:nth-of-type(3) {
  background: linear-gradient(200deg, #fff7e6 0%, #17141a 100%);
}

.tile:hover, .tile:focus-visible, .tile:active {
  transform: scale(1.04);
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
}

.gallery.is-demo .tile--featured {
  animation: pop-loop-lg 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.gallery.is-demo .tile--small {
  animation: pop-loop-sm 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.gallery.is-demo .tile--small:nth-of-type(3) {
  animation-delay: -0.3s;
}

@keyframes pop-loop-lg {
  0%, 8% {
    transform: scale(1);
    box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
  }
  30%, 50% {
    transform: scale(1.03);
    box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  }
  70%, 100% {
    transform: scale(1);
    box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
  }
}
@keyframes pop-loop-sm {
  0%, 40% {
    transform: scale(1);
    box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
  }
  60%, 80% {
    transform: scale(1.06);
    box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
  }
}
@media (hover: none) {
  .tile:active {
    transform: scale(1.04);
    box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  }
}
@media (prefers-reduced-motion: reduce) {
  .tile {
    transition: none;
  }
  .gallery.is-demo .tile--featured, .gallery.is-demo .tile--small {
    animation: none;
  }
}

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

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

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

/** 첫 번째 사진에만 grid-column/grid-row span 2 를 줘서 네 배 크게 띄우는 잡지형 레이아웃 */
export default function FeaturedGallery({
  duration = 300,
  easing = "cubic-bezier(.2,.8,.2,1)",
  color = "#fff7e6",
}: FeaturedGalleryProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };
  return (
    <ul className={styles.gallery} style={vars} aria-label="Photo gallery">
      <li className={styles.featured} tabIndex={0} />
      <li className={styles.small} tabIndex={0} />
      <li className={styles.small} tabIndex={0} />
    </ul>
  );
}