* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #18212f; background: #f5f7fb; }
main { width: min(1120px, calc(100% - 32px)); margin: 0 auto; padding: 40px 0; }
footer { width: min(1120px, calc(100% - 32px)); margin: 0 auto; padding: 24px 0 40px; display: flex; gap: 16px; }
a { color: #1956a3; text-decoration: none; }
h1, h2 { margin: 0; line-height: 1.1; }
p { line-height: 1.6; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.topbar h1 { font-size: clamp(34px, 7vw, 72px); }
.topbar p { margin: 10px 0 0; color: #5c6675; }
.button, button { border: 0; border-radius: 8px; background: #1956a3; color: white; padding: 11px 16px; font: inherit; cursor: pointer; display: inline-block; }
.danger { background: #b42318; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 18px; }
.card, .panel { background: white; border: 1px solid #e3e8f0; border-radius: 8px; box-shadow: 0 12px 30px rgba(24, 33, 47, 0.06); }
.card { overflow: hidden; color: inherit; }
.card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; background: #dde4ef; }
.card div { padding: 16px; }
.card h2 { font-size: 20px; }
.card p { color: #5c6675; margin-bottom: 0; }
.panel { padding: 24px; }
.narrow { max-width: 680px; margin: 0 auto; }
form { display: grid; gap: 16px; margin-top: 18px; }
label { display: grid; gap: 8px; color: #3b4656; font-weight: 600; }
input, textarea { width: 100%; border: 1px solid #c8d2e0; border-radius: 8px; padding: 11px 12px; font: inherit; background: white; }
textarea { resize: vertical; }
.paste-hint { color: #667386; font-size: 13px; font-weight: 500; }
.preview { display: flex; align-items: center; gap: 12px; border: 1px solid #d7dfeb; border-radius: 8px; padding: 10px; background: #f8fafc; }
.preview[hidden] { display: none; }
.preview img { width: 72px; height: 72px; object-fit: cover; border-radius: 6px; background: #dde4ef; }
.preview span { color: #3b4656; overflow-wrap: anywhere; }
.notice { border-radius: 8px; padding: 12px 14px; background: #e8f3ff; color: #164a86; }
.error { background: #feeceb; color: #9f1f17; }
.empty { color: #5c6675; }
.detail { max-width: 860px; margin: 0 auto; }
.detail img { width: 100%; max-height: 560px; object-fit: contain; background: #dde4ef; border-radius: 8px; margin: 20px 0; }
pre { white-space: pre-wrap; overflow-wrap: anywhere; background: #f0f4f8; border-radius: 8px; padding: 16px; line-height: 1.55; }
.tags { color: #1956a3; font-size: 14px; }
.admin-list { display: grid; gap: 16px; }
.admin-item { display: grid; grid-template-columns: 180px 1fr auto; gap: 20px; align-items: start; }
.admin-thumb { width: 180px; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 8px; background: #dde4ef; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.actions form { margin: 0; display: block; }
.status { display: inline-block; border-radius: 999px; padding: 4px 10px; font-size: 13px; font-weight: 700; background: #e7edf6; color: #40516a; margin-bottom: 10px; }
.status.pending { background: #fff4d6; color: #7a4c00; }
.status.approved { background: #ddf7e6; color: #146c37; }
.status.rejected { background: #feeceb; color: #9f1f17; }

@media (max-width: 720px) {
  main { width: min(100% - 24px, 1120px); padding-top: 24px; }
  .topbar, .admin-item { grid-template-columns: 1fr; display: grid; align-items: stretch; }
  .admin-thumb { width: 100%; }
  .topbar h1 { font-size: 40px; }
}