:root{--bg:#eef1f6;--surface:#ffffff;--border:#e2e8f0;--border-strong:#cbd5e1;--text:#0f172a;--muted:#64748b;--accent:#4f46e5;--accent-hover:#4338ca;--success:#059669;--warn:#b45309;--archived:#94a3b8;--shadow:0 1px 3px rgb(15 23 42/8%),0 8px 24px rgb(15 23 42/6%);--radius:10px;--font:"SF Pro Text","PingFang SC",system-ui,-apple-system,sans-serif}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:var(--font);font-size:13px;color:var(--text);background:var(--bg);line-height:1.45}.top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding:16px 24px;background:var(--surface);border-bottom:1px solid var(--border);box-shadow:var(--shadow);position:-webkit-sticky;position:sticky;top:0;z-index:20}.brand h1{margin:0;font-size:1.25rem;font-weight:650;letter-spacing:-.02em}.brand .sub{margin:2px 0 0;font-size:12px;color:var(--muted)}.toolbar{display:flex;flex-wrap:wrap;gap:10px}.chip,.toolbar{align-items:center}.chip{display:inline-flex;gap:6px;padding:6px 10px;background:var(--bg);border:1px solid var(--border);border-radius:999px;font-size:12px;color:var(--muted)}.chip select{border:none;background:transparent;font:inherit;color:var(--text);cursor:pointer;outline:none}.chip.check{cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none}.chip.check input{accent-color:var(--accent)}.btn{border:1px solid var(--border-strong);background:var(--surface);color:var(--text);padding:8px 14px;border-radius:8px;font:inherit;font-weight:500;cursor:pointer;transition:background .15s,border-color .15s,transform .08s}.btn:hover{background:#f8fafc;border-color:#94a3b8}.btn:active{transform:scale(.98)}.btn.accent{background:var(--accent);border-color:var(--accent);color:#fff}.btn.accent:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn.ghost{background:transparent;border-color:transparent;color:var(--muted)}.btn.ghost:hover{background:var(--bg);color:var(--text)}.btn.sm{padding:5px 10px;font-size:12px;border-radius:6px}.btn.warn{color:var(--warn);border-color:#fcd34d;background:#fffbeb}.toast{margin:0;padding:8px 24px;min-height:32px;font-size:12px;color:var(--success)}.toast.err{color:#dc2626}.table-shell{margin:16px 20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:auto;max-height:calc(100vh - 220px)}.grid{width:100%;border-collapse:separate;border-spacing:0;min-width:1280px}.grid thead th{position:-webkit-sticky;position:sticky;top:0;z-index:5;text-align:left;font-size:11px;font-weight:600;text-transform:none;letter-spacing:.02em;color:var(--muted);background:#f8fafc;padding:10px 12px;border-bottom:1px solid var(--border);white-space:nowrap}.grid tbody tr{transition:background .12s}.grid tbody tr:hover{background:#fafbff}.grid tbody tr.archived{opacity:.55;background:#f1f5f9}.grid tbody tr.row-dirty{box-shadow:inset 3px 0 0 var(--accent)}.grid td{vertical-align:top;padding:8px 10px;border-bottom:1px solid var(--border)}.col-id{width:88px}.col-tier{width:72px}.col-group{width:160px}.col-target{width:180px}.col-flag{width:96px}.col-steps{min-width:200px}.col-expected{min-width:260px}.col-actions{width:120px}.cell-input,.cell-select,.cell-text{width:100%;padding:7px 9px;border:1px solid var(--border);border-radius:6px;font:inherit;color:var(--text);background:#fff;transition:border-color .15s,box-shadow .15s}.cell-input:focus,.cell-select:focus,.cell-text:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgb(79 70 229/12%)}.cell-text{min-height:72px;resize:vertical;line-height:1.4}.actions-cell{display:flex;flex-direction:column;gap:6px;padding-top:4px}.l2b-panel{margin:0 20px 24px;padding:18px 20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.l2b-panel h2{margin:0 0 4px;font-size:14px}.l2b-panel .hint{margin:0 0 10px;color:var(--muted);font-size:12px}.l2b-panel textarea{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font:inherit;resize:vertical;min-height:100px}.l2b-panel textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgb(79 70 229/12%)}.l2b-panel .btn{margin-top:10px}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.auth-card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}.auth-card h1{margin:0 0 8px;font-size:1.25rem}.auth-card label{display:block;margin-top:14px;font-size:12px;color:var(--muted)}.auth-card input{width:100%;margin-top:6px;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font:inherit}.auth-card .btn{width:100%;margin-top:20px}.auth-error{color:#dc2626;font-size:13px;margin-top:12px}.auth-links{margin-top:16px;font-size:13px}.auth-links a,.nav-link{color:var(--accent)}.nav-link{font-size:13px;text-decoration:none}