:root{--bg:#0b1020;--panel:#121a2f;--text:#e8eefc;--muted:#9fb0d0;--accent:#1e63d7}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans JP,sans-serif;line-height:1.5}.app{max-width:430px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;gap:10px;padding:12px}header{padding:12px 14px;background:#0e1629;border-bottom:1px solid #25324e}h1{font-size:16px;margin:0}h2{font-size:14px;margin:0 0 8px}.sub{font-size:11px;color:var(--muted)}.card{background:var(--panel);border:1px solid #25324e;border-radius:14px;padding:12px}button{background:var(--accent);color:#fff;border:0;border-radius:10px;padding:11px 12px;font-weight:700;font-size:14px;cursor:pointer;width:100%}button.sec{background:#283852}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:8px}input{width:100%;background:#0b1020;color:var(--text);border:1px solid #334260;border-radius:8px;padding:10px;font-size:14px}label{font-size:12px;color:var(--muted);display:block;margin:8px 0 4px}.task{border:1px solid #31415f;border-radius:10px;padding:10px;margin:6px 0;background:#0f1830;cursor:pointer}.task.claimed{opacity:.55;filter:grayscale(.7);border-style:dashed}.alert{border-left:4px solid #ff5c7c;background:#1c1426;border-radius:8px;padding:8px 10px;font-size:12px;margin:5px 0}.alert .t{color:var(--muted);font-size:10px}.alert.info{border-left-color:#4da3ff;background:#12203a}.log{font-size:11px;color:var(--muted);max-height:150px;overflow:auto;background:#0b1020;border-radius:8px;padding:8px;font-family:ui-monospace,Menlo,monospace}.error{color:#ff5c7c;font-size:12px}.row-scan{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:stretch}.row-scan .btn-scan{width:auto;padding:10px 16px}.scan-box{margin:8px 0;padding:10px;border:1px solid #31415f;border-radius:10px;background:#0f1830}.scan-box button{margin-top:8px}.cart-item{display:flex;justify-content:space-between;align-items:center;gap:8px;border:1px solid #31415f;border-radius:8px;padding:6px 10px;margin:4px 0;font-size:13px;background:#0f1830}.cart-item button{width:auto;padding:6px 12px;font-size:12px}.qr-reader{border-radius:10px;overflow:hidden}.qr-reader video{width:100%;display:block;border-radius:10px}