:root {
  --bg: #faf8f5;
  --surface: #ffffff;
  --text: #2a2522;
  --muted: #6b625c;
  --line: #e6e0d9;
  --accent: #b4532a;
  --accent-ink: #ffffff;
  --chip: #f1ebe4;
  --ok: #2f7a4a;
  --err: #b3261e;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1917;
    --surface: #24211f;
    --text: #efe9e3;
    --muted: #b3aaa2;
    --line: #3a3532;
    --accent: #e0855a;
    --accent-ink: #1b1917;
    --chip: #302c29;
    --ok: #7cc79a;
    --err: #ff8a80;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { font-size: 16px; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", "Meiryo", system-ui, sans-serif;
  line-height: 1.7;
}
a { color: var(--accent); }
.wrap { max-width: 1100px; margin: 0 auto; padding: 0 16px; }
header.site { border-bottom: 1px solid var(--line); background: var(--surface); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 12px; padding-bottom: 12px; flex-wrap: wrap; }
.logo { font-weight: 800; font-size: 1.25rem; text-decoration: none; color: var(--text); letter-spacing: .02em; }
.logo small { display: block; font-weight: 500; font-size: .75rem; color: var(--muted); letter-spacing: 0; }
nav.top a { margin-left: 14px; text-decoration: none; font-weight: 600; }
nav.top a.btn { margin-left: 14px; }
.btn {
  display: inline-block; background: var(--accent); color: var(--accent-ink); border: 0; border-radius: 8px;
  padding: 10px 18px; font-weight: 700; font-size: 1rem; text-decoration: none; cursor: pointer;
}
.btn.secondary { background: var(--chip); color: var(--text); }
.btn:disabled { opacity: .6; cursor: default; }
.hero { padding: 32px 0 16px; }
.hero h1 { font-size: 1.6rem; line-height: 1.4; margin: 0 0 8px; }
.hero p { color: var(--muted); margin: 0 0 16px; max-width: 46em; }
.search { display: flex; gap: 8px; flex-wrap: wrap; margin: 8px 0 12px; }
.search input { flex: 1 1 240px; min-width: 0; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--text); font-size: 1rem; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.chip { background: var(--chip); color: var(--text); border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; font-size: .9rem; cursor: pointer; text-decoration: none; }
.chip[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; padding-bottom: 32px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; display: flex; flex-direction: column; text-decoration: none; color: var(--text); }
.card img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; background: var(--chip); display: block; }
.card .t { padding: 8px 10px; font-size: .92rem; font-weight: 600; }
.empty { padding: 40px 16px; text-align: center; color: var(--muted); border: 1px dashed var(--line); border-radius: 10px; background: var(--surface); }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 20px; margin: 24px 0; }
form label { display: block; font-weight: 700; margin: 14px 0 6px; }
form .hint { font-weight: 400; color: var(--muted); font-size: .9rem; }
form input[type=text], form input[type=url], form textarea, form input[type=file] {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--text); font-size: 1rem; font-family: inherit;
}
form textarea { min-height: 90px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; margin: 10px 0; }
.check input { margin-top: 6px; width: 18px; height: 18px; flex: 0 0 auto; }
.msg { margin-top: 14px; font-weight: 600; }
.msg.ok { color: var(--ok); }
.msg.err { color: var(--err); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.detail { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: 24px; margin: 24px 0; }
.detail img { width: 100%; height: auto; border-radius: 10px; border: 1px solid var(--line); background: var(--chip); }
.meta dt { color: var(--muted); font-size: .85rem; margin-top: 10px; }
.meta dd { margin: 0; }
.license { background: var(--chip); border-radius: 8px; padding: 12px; font-size: .92rem; margin: 14px 0; }
footer.site { border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; padding: 20px 0 32px; }
footer.site a { margin-right: 14px; }
.prose h2 { font-size: 1.15rem; margin-top: 28px; }
.prose li { margin: 4px 0; }
.admin-item { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 16px; border-top: 1px solid var(--line); padding: 16px 0; }
.admin-item img { width: 100%; border-radius: 8px; }
@media (max-width: 720px) {
  .detail { grid-template-columns: 1fr; }
  .admin-item { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.35rem; }
  nav.top a { margin-left: 10px; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
}