:root{
  --bg:#f5f7fb;
  --surface:#ffffff;
  --text:#111827;
  --muted:#6b7280;
  --line:#e5e7eb;
  --accent:#1f2937;
  --chip:#eef2f7;
  --done:#dcfce7;
  --doing:#fef3c7;
  --todo:#f3f4f6;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif}
body{max-width:720px;margin:0 auto}
header{
  position:sticky; top:0; z-index:20; background:rgba(245,247,251,.95); backdrop-filter: blur(8px);
  border-bottom:1px solid var(--line);
}
.topbar{padding:14px 16px 10px}
h1{margin:0;font-size:1.25rem}
.sub{margin-top:4px;color:var(--muted);font-size:.92rem}
.search-wrap{padding:0 16px 12px}
#search{
  width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--line);font-size:1rem;background:#fff;
}
.section{padding:12px 16px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.stat{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:10px 8px;text-align:center;
}
.stat .num{font-size:1.2rem;font-weight:700}
.stat .label{font-size:.78rem;color:var(--muted);margin-top:3px}
.filter-row{display:flex;gap:8px;flex-wrap:wrap}
.chip{
  border:none;border-radius:999px;padding:8px 12px;background:var(--chip);font-size:.92rem;color:#374151;
}
.chip.active{background:var(--accent);color:#fff}
.list{padding:0 12px 18px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:12px;margin:12px 0;
  box-shadow:0 1px 2px rgba(0,0,0,.03);
}
.card-main{display:grid;grid-template-columns:92px 1fr;gap:12px;align-items:start}
.thumb{
  width:92px;height:92px;border-radius:12px;background:#f7f7f7;border:1px solid var(--line);object-fit:cover;
}
.code{font-size:.9rem;color:var(--muted);font-weight:600}
.title{font-size:1.05rem;font-weight:700;line-height:1.35;margin-top:2px}
.badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.badge{
  border-radius:999px;padding:4px 10px;font-size:.78rem;font-weight:600;
}
.badge.done{background:var(--done);color:#166534}
.badge.doing{background:var(--doing);color:#92400e}
.badge.todo{background:var(--todo);color:#4b5563}
.meta{margin-top:8px;display:grid;gap:4px;font-size:.88rem}
.meta strong{font-weight:600}
.summary-line{color:#374151}
.toggle{
  margin-top:10px;width:100%;border:none;background:#f9fafb;border:1px solid var(--line);
  border-radius:12px;padding:10px 12px;font-size:.9rem;color:#374151
}
.detail{display:none;padding-top:10px}
.detail.open{display:block}
.detail-grid{display:grid;gap:8px;font-size:.9rem}
.detail-item{padding:10px 12px;background:#fafafa;border:1px solid var(--line);border-radius:12px}
.detail-item .k{display:block;color:var(--muted);font-size:.76rem;margin-bottom:4px}
.empty{padding:36px 18px;text-align:center;color:var(--muted)}
footer{padding:20px 16px 28px;color:var(--muted);font-size:.85rem}
small.help{display:block; margin-top:6px}
a{color:#1d4ed8;text-decoration:none}

.status-button {border:0;cursor:pointer;font:inherit;font-size:.78rem;font-weight:700;touch-action:manipulation;}
.status-button:active{transform:scale(.97)}
.backup-actions{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
.backup-actions button,.backup-actions label{border:1px solid var(--line);background:white;border-radius:10px;padding:9px 12px;color:#374151;font-size:.86rem;cursor:pointer}