feat(travel): AlbumCard 컴포넌트 — 대표사진 + 그라디언트 + 메타정보

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/pages/travel/AlbumCard.css

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+/* ── AlbumCard ── */
+
+.album-card {
+  position: relative;
+  height: 240px;
+  border-radius: 12px;
+  border: 1px solid rgba(245, 230, 200, 0.08);
+  overflow: hidden;
+  cursor: pointer;
+  outline: none;
+  transition: transform 0.28s ease, box-shadow 0.28s ease;
+}
+
+.album-card:hover,
+.album-card:focus-visible {
+  transform: scale(1.03);
+  box-shadow: 0 4px 24px color-mix(in srgb, var(--card-accent) 35%, transparent);
+}
+
+/* cover image */
+.album-card__cover {
+  position: absolute;
+  inset: 0;
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+  transition: transform 0.35s ease;
+}
+
+.album-card:hover .album-card__cover {
+  transform: scale(1.06);
+}
+
+/* gradient overlay */
+.album-card__gradient {
+  position: absolute;
+  inset: 0;
+  background: linear-gradient(transparent 50%, rgba(15, 12, 9, 0.85));
+  pointer-events: none;
+}
+
+/* meta */
+.album-card__meta {
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  padding: 16px;
+  z-index: 2;
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+}
+
+.album-card__region-badge {
+  align-self: flex-start;
+  font: 10px var(--tv-mono);
+  letter-spacing: 0.08em;
+  text-transform: uppercase;
+  color: var(--card-accent);
+  background: rgba(15, 12, 9, 0.6);
+  padding: 2px 8px;
+  border-radius: 4px;
+}
+
+.album-card__name {
+  margin: 0;
+  font: 600 24px/1.15 var(--tv-serif);
+  color: var(--tv-text);
+}
+
+.album-card__count {
+  font: 11px var(--tv-mono);
+  letter-spacing: 0.06em;
+  color: var(--tv-muted);
+  background: rgba(15, 12, 9, 0.55);
+  padding: 2px 8px;
+  border-radius: 4px;
+  align-self: flex-start;
+}
+
+/* grid layout */
+.album-card-grid {
+  display: grid;
+  gap: 16px;
+  grid-template-columns: repeat(3, 1fr);
+}
+
+@media (max-width: 1024px) {
+  .album-card-grid {
+    grid-template-columns: repeat(2, 1fr);
+  }
+}
+
+@media (max-width: 768px) {
+  .album-card-grid {
+    grid-template-columns: 1fr;
+  }
+
+  .album-card {
+    height: 200px;
+  }
+
+  .album-card__name {
+    font-size: 18px;
+  }
+}
+
+/* reduced motion */
+@media (prefers-reduced-motion: reduce) {
+  .album-card,
+  .album-card__cover {
+    transition: none;
+    transform: none !important;
+  }
+}

src/pages/travel/AlbumCard.jsx

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+import React, { useRef, useCallback } from 'react';
+import { getRegionAccent } from './MiniMap';
+import './AlbumCard.css';
+
+/* ─────────────────────────────────────────────
+   AlbumCard — cover image + gradient + meta
+───────────────────────────────────────────── */
+export default function AlbumCard({ album, onClick }) {
+  const cardRef = useRef(null);
+  const accent = getRegionAccent(album.region || '');
+
+  const handleClick = useCallback(() => {
+    if (!onClick) return;
+    const rect = cardRef.current?.getBoundingClientRect();
+    onClick(album, rect);
+  }, [album, onClick]);
+
+  const handleKeyDown = useCallback(
+    (e) => {
+      if (e.key === 'Enter') handleClick();
+    },
+    [handleClick],
+  );
+
+  return (
+    <div
+      ref={cardRef}
+      className="album-card"
+      style={{ '--card-accent': accent }}
+      role="button"
+      tabIndex={0}
+      onClick={handleClick}
+      onKeyDown={handleKeyDown}
+    >
+      {/* cover */}
+      <img
+        className="album-card__cover"
+        src={album.coverThumb}
+        alt={album.name}
+        loading="lazy"
+        draggable={false}
+      />
+
+      {/* gradient overlay */}
+      <div className="album-card__gradient" />
+
+      {/* meta */}
+      <div className="album-card__meta">
+        <span className="album-card__region-badge">{album.regionName}</span>
+        <h3 className="album-card__name">{album.name}</h3>
+        <span className="album-card__count">{album.photoCount} frames</span>
+      </div>
+    </div>
+  );
+}