:root {
    --bg: #f5f6f8; --panel: #fff; --text: #1d2330; --muted: #667085; --border: #dfe3ea;
    --accent: #0b5cff; --accent-text: #fff; --danger: #c62828; --ok: #1b7f3b; --code: #f0f2f5;
  }
  @media (prefers-color-scheme: dark) {
    :root { --bg: #14171c; --panel: #1c2027; --text: #e6e8ec; --muted: #9aa3b2; --border: #2c323c;
      --accent: #4c8dff; --danger: #ef5350; --ok: #4caf50; --code: #232831; }
  }
  * { box-sizing: border-box; }
  body { margin: 0; font: 14px/1.5 system-ui, -apple-system, Segoe UI, Roboto, sans-serif; background: var(--bg); color: var(--text); }
  header { display: flex; align-items: center; gap: 16px; padding: 14px 24px; background: var(--panel); border-bottom: 1px solid var(--border); flex-wrap: wrap; }
  header h1 { font-size: 18px; margin: 0; }
  .hub-url { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; margin-left: auto; min-width: 0; }
  .hub-url code { background: var(--code); padding: 4px 8px; border-radius: 6px; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 46vw; }
  main { max-width: 1100px; margin: 0 auto; padding: 24px 16px; }
  .toolbar { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
  .toolbar input { flex: 1; min-width: 180px; }
  input, textarea { font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; }
  button { font: inherit; border: 1px solid var(--border); background: var(--panel); color: var(--text); border-radius: 8px; padding: 7px 14px; cursor: pointer; }
  button:hover { border-color: var(--accent); }
  button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
  button.danger { color: var(--danger); }
  button.danger:hover { border-color: var(--danger); }
  .list { display: grid; gap: 10px; }
  .card { display: grid; grid-template-columns: 56px 1fr auto; gap: 14px; align-items: center; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; }
  .card img, .card .ph { width: 56px; height: 56px; border-radius: 8px; object-fit: cover; background: var(--code); }
  .card h3 { margin: 0; font-size: 15px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
  .tag { font-size: 11px; font-weight: 500; padding: 1px 7px; border-radius: 999px; background: var(--code); color: var(--muted); }
  .card p { margin: 2px 0 0; color: var(--muted); font-size: 13px; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
  .card .repo { font-family: ui-monospace, Menlo, monospace; font-size: 12px; color: var(--muted); word-break: break-all; }
  .actions { display: flex; gap: 6px; }
  .empty { text-align: center; color: var(--muted); padding: 48px 0; }
  dialog { width: min(960px, 96vw); border: 1px solid var(--border); border-radius: 12px; padding: 0; background: var(--panel); color: var(--text); }
  dialog::backdrop { background: rgba(0,0,0,.45); }
  .dlg-head, .dlg-foot { padding: 14px 18px; display: flex; align-items: center; gap: 8px; }
  .dlg-head { border-bottom: 1px solid var(--border); }
  .dlg-head h2 { margin: 0; font-size: 16px; flex: 1; }
  .dlg-foot { border-top: 1px solid var(--border); justify-content: flex-end; flex-wrap: wrap; }
  .dlg-foot .msg { margin-right: auto; font-size: 13px; }
  .dlg-body { padding: 14px 18px; }
  textarea { width: 100%; height: 60vh; font: 12px/1.45 ui-monospace, Menlo, monospace; background: var(--code); resize: vertical; white-space: pre; }
  .err { color: var(--danger); } .ok { color: var(--ok); }
  #toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg); padding: 8px 16px; border-radius: 8px; opacity: 0; transition: opacity .2s; pointer-events: none; }
  #toast.show { opacity: 1; }
  @media (max-width: 640px) {
    .card { grid-template-columns: 44px 1fr; }
    .card img, .card .ph { width: 44px; height: 44px; }
    .actions { grid-column: 1 / -1; justify-content: flex-end; }
    .hub-url { margin-left: 0; width: 100%; }
    .hub-url code { max-width: 100%; }
  }
  .user { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; }
  .login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
  .login { width: min(360px, 100%); background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 28px 24px; display: grid; gap: 14px; }
  .login h1 { margin: 0; font-size: 20px; }
  .login p { margin: 0; color: var(--muted); font-size: 13px; }
  .login label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
  .login input { width: 100%; }
  .login button { width: 100%; padding: 9px; }
  .login .err { min-height: 1.2em; font-size: 13px; }