:root{--bg: #f4f6f9;--card: #ffffff;--fg: #1f2937;--muted: #6b7280;--accent: #2563eb;--accent-soft: #eff4ff;--ok: #16a34a;--warn: #d97706;--err: #dc2626;--border: #e2e6ec;--input-bg: #f8fafc;font-family:system-ui,-apple-system,Hiragino Kaku Gothic ProN,sans-serif;font-size:17px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);line-height:1.6;-webkit-font-smoothing:antialiased}.app{min-height:100vh;display:flex;flex-direction:column}.app-header{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;padding:14px 22px;background:#fffc;backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border)}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:1.25rem;letter-spacing:.14em;color:var(--fg);text-decoration:none}.brand:before{content:"";width:10px;height:22px;border-radius:3px;background:linear-gradient(180deg,var(--accent),#60a5fa)}.app-header nav{display:flex;align-items:center;gap:4px}.app-header nav a{color:var(--muted);text-decoration:none;font-size:.92rem;font-weight:600;padding:8px 14px;border-radius:9px;transition:background .15s,color .15s}.app-header nav a:hover{color:var(--accent);background:var(--accent-soft)}.app-header nav .link-btn{width:auto;margin:0 0 0 6px;padding:8px 14px;background:none;border:1px solid var(--border);border-radius:9px;color:var(--muted);font-size:.9rem;font-weight:600;cursor:pointer;transition:background .15s,color .15s,border-color .15s}.app-header nav .link-btn:hover{background:#fff;color:var(--err);border-color:var(--err)}.app-main{flex:1;width:100%;max-width:560px;margin:0 auto;padding:24px 16px}.app-footer{text-align:center;padding:16px;color:var(--muted)}.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:28px;box-shadow:0 4px 16px #0f172a0f}h1{font-size:1.4rem;margin:0 0 4px}h2{font-size:1.1rem;margin:0 0 16px}.subtitle{color:var(--muted);margin:0 0 20px}label{display:block;font-size:.9rem;margin:16px 0 6px;color:var(--muted)}input[type=text],input[type=email],input[type=password]{width:100%;padding:14px;font-size:1.05rem;border-radius:10px;border:1px solid var(--border);background:var(--input-bg);color:var(--fg)}input[type=text]:focus,input[type=email]:focus,input[type=password]:focus{outline:none;border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px var(--accent-soft)}.radio-group{display:flex;gap:12px;margin-top:6px}.radio-group label{flex:1;margin:0;padding:12px;text-align:center;border:1px solid var(--border);border-radius:8px;cursor:pointer;color:var(--fg)}.radio-group input{display:none}.radio-group label.selected{border-color:var(--accent);background:var(--accent-soft);color:var(--accent);font-weight:600}button{width:100%;margin-top:24px;padding:15px;font-size:1.05rem;font-weight:600;border:none;border-radius:10px;background:var(--accent);color:#fff;cursor:pointer}button:hover:not(:disabled){background:#1d4ed8}button:disabled{opacity:.45;cursor:not-allowed}button.secondary{background:#fff;color:var(--fg);border:1px solid var(--border)}button.secondary:hover:not(:disabled){background:var(--input-bg)}.error{color:var(--err);margin-top:14px;font-size:.9rem}.hint{color:var(--muted);font-size:.85rem;margin-top:8px}.notice{margin-top:14px;padding:12px 14px;border-radius:10px;background:var(--accent-soft);color:var(--accent);font-size:.95rem}.select{width:100%;padding:14px 44px 14px 14px;font-size:1.05rem;border-radius:10px;border:1px solid var(--border);background-color:var(--input-bg);color:var(--fg);cursor:pointer;appearance:none;-webkit-appearance:none;-moz-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;transition:border-color .15s,box-shadow .15s}.select:hover{border-color:#cbd5e1}.select:focus{outline:none;border-color:var(--accent);background-color:#fff;box-shadow:0 0 0 3px var(--accent-soft)}.tabs{display:flex;gap:6px;margin-bottom:20px;border-bottom:1px solid var(--border)}.tabs .tab{width:auto;margin:0;padding:10px 16px;background:none;border:none;border-bottom:2px solid transparent;border-radius:0;color:var(--muted);font-size:.98rem;font-weight:600;cursor:pointer}.tabs .tab:hover{background:none;color:var(--fg)}.tabs .tab.active{color:var(--accent);border-bottom-color:var(--accent)}.subform{background:var(--input-bg);border:1px solid var(--border);border-radius:12px;padding:18px 18px 22px;margin-top:22px;margin-bottom:22px}.subform h2{margin:0 0 4px}.subform label:first-of-type{margin-top:10px}.table-wrap{overflow-x:auto;margin-top:8px}.data-table{width:100%;border-collapse:collapse;font-size:.95rem}.data-table th,.data-table td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap}.data-table th{color:var(--muted);font-weight:600;font-size:.85rem}.data-table .mono{font-variant-numeric:tabular-nums;font-weight:700;letter-spacing:.04em}.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.82rem;font-weight:600}.badge.green{background:#f0fdf4;color:#15803d;border:1px solid #bbf7d0}.badge.red{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}.badge.gray{background:#f1f5f9;color:#64748b;border:1px solid #e2e8f0}.qr-box{text-align:center}.qr-box canvas,.qr-box img{background:#fff;padding:16px;border:1px solid var(--border);border-radius:12px;margin:12px auto}#qr-reader{width:100%;border-radius:12px;overflow:hidden}.result{margin-top:20px;padding:20px;border-radius:12px;text-align:center;font-size:1.1rem}.result.ok{background:#f0fdf4;border:1px solid var(--ok);color:#14532d}.result.already{background:#fffbeb;border:1px solid var(--warn);color:#78350f}.result.bad{background:#fef2f2;border:1px solid var(--err);color:#7f1d1d}.result .big{font-size:1.5rem;font-weight:700;display:block;margin:8px 0}.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}.stat{background:var(--input-bg);border:1px solid var(--border);border-radius:12px;padding:18px;text-align:center}.stat .num{font-size:2rem;font-weight:700;color:var(--accent)}.stat .lbl{color:var(--muted);font-size:.85rem}