:root{
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  color:#1f2937;background:#f7f7fb
}
*{box-sizing:border-box}
body{margin:0;min-height:100vh}
button,input{font:inherit}
button{cursor:pointer}
.shell{max-width:720px;margin:0 auto;padding:18px 14px 48px}
.card{background:#fff;border:1px solid #e5e7eb;border-radius:20px;padding:18px;margin-bottom:14px;box-shadow:0 6px 22px rgba(0,0,0,.05)}
h1{margin:4px 0 8px;font-size:28px}
h2{margin-top:0;font-size:20px}
.muted,.footnote,.version{color:#6b7280}
.version{text-align:center;font-size:12px;margin-top:16px}
.hidden{display:none!important}
.tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:18px 0}
.tab,.ghost{border:1px solid #d1d5db;background:#fff;border-radius:12px;padding:11px 12px}
.tab.active{background:#111827;color:#fff;border-color:#111827}
label{display:block;margin:14px 0 6px;font-weight:600}
input{width:100%;padding:13px 14px;border:1px solid #d1d5db;border-radius:12px;margin-top:7px;background:#fff}
.primary{width:100%;border:0;border-radius:14px;padding:14px;background:#111827;color:#fff;font-weight:700;margin-top:16px}
.primary:disabled,.task-action:disabled{opacity:.55;cursor:not-allowed}
.message{min-height:24px;color:#b91c1c;line-height:1.5}
.message.ok{color:#166534}
.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.eyebrow{font-size:14px;color:#6b7280}
.progress-line{display:flex;justify-content:space-between;gap:10px}
.progress-track{height:12px;background:#e5e7eb;border-radius:999px;margin:14px 0;overflow:hidden}
#progressBar{height:100%;width:0;background:#111827;transition:width .2s}
.stars{font-size:25px;letter-spacing:3px;overflow-wrap:anywhere}
.task-list{display:grid;gap:12px}
.task-card{background:#fff;border:1px solid #e5e7eb;border-radius:18px;padding:16px}
.task-card.done{background:#f1f8f4;border-color:#9ca3af}
.task-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}
.task-title{font-weight:800;font-size:18px}
.task-note{color:#6b7280;margin-top:5px;line-height:1.5}
.task-action{min-width:92px;border:1px solid #111827;background:#fff;border-radius:12px;padding:10px 12px}
.task-card.done .task-action{background:#111827;color:#fff}
.badge{display:inline-block;border-radius:999px;padding:3px 8px;font-size:12px;background:#f3f4f6;margin:8px 5px 0 0}
.time{font-size:12px;color:#6b7280;margin-top:8px}
.date-nav{display:grid;grid-template-columns:auto 1fr auto;gap:8px;align-items:center}
.summary-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}
.summary-box{background:#f3f4f6;border-radius:14px;padding:12px;text-align:center}
.summary-box strong{display:block;font-size:24px}
.history-row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid #eee}
@media(max-width:420px){
  h1{font-size:24px}
  .task-head{align-items:center}
  .task-title{font-size:16px}
  .date-nav{grid-template-columns:1fr 1.4fr 1fr}
}