:root{--bg: #f5f6f8;--surface: #ffffff;--border: #dde1e6;--text: #1c2430;--muted: #6b7684;--primary: #2563eb;--primary-dark: #1d4ed8;--danger: #dc2626;--ok: #15803d;--warn-bg: #fef3c7;--warn-border: #f59e0b;--warn-text: #92400e;--error-bg: #fee2e2;--error-text: #b91c1c}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.45}h1{font-size:20px;margin:0}h2{font-size:16px;margin:24px 0 12px}code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px}.layout{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;gap:24px;padding:0 20px;height:52px;background:var(--surface);border-bottom:1px solid var(--border)}.brand{font-weight:700}.nav{display:flex;gap:16px;flex:1}.nav a{color:var(--muted);text-decoration:none;padding:4px 2px}.nav a.active{color:var(--primary);border-bottom:2px solid var(--primary)}.topbar-right{display:flex;align-items:center;gap:12px}.user-email{color:var(--muted)}.content{padding:24px;max-width:1100px;width:100%;margin:0 auto}.page-loading{padding:40px;text-align:center;color:var(--muted)}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:20px;margin-bottom:24px}.card h2{margin-top:0}.form-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px 16px}label{display:flex;flex-direction:column;gap:4px;font-weight:500}.checkbox-label{flex-direction:row;align-items:center;gap:8px;align-self:end}input,select{padding:7px 10px;border:1px solid var(--border);border-radius:6px;font:inherit;background:#fff}input:focus,select:focus{outline:2px solid var(--primary);outline-offset:-1px}.card>.btn{margin-top:12px}.btn{display:inline-block;padding:7px 14px;border-radius:6px;border:1px solid transparent;font:inherit;cursor:pointer;text-decoration:none;text-align:center}.btn:disabled{opacity:.6;cursor:default}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-secondary{background:#fff;border-color:var(--border);color:var(--text)}.btn-danger{background:#fff;border-color:var(--danger);color:var(--danger)}.btn-danger:hover:not(:disabled){background:var(--danger);color:#fff}.table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--border);border-radius:8px;overflow:hidden}.table th,.table td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--border)}.table th{background:#fafbfc;font-weight:600;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.03em}.table tbody tr:last-child td{border-bottom:none}.row-actions{display:flex;gap:8px;justify-content:flex-end}.checksum{color:var(--muted)}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600}.badge-ok{background:#dcfce7;color:var(--ok)}.badge-info{background:#dbeafe;color:var(--primary-dark)}.badge-warn{background:var(--warn-bg);color:var(--warn-text)}.badge-muted{background:#e5e7eb;color:var(--muted)}.badge-error{background:var(--error-bg);color:var(--error-text)}.alert{padding:10px 14px;border-radius:6px;margin:12px 0}.alert-error{background:var(--error-bg);color:var(--error-text)}.alert-warning{background:var(--warn-bg);border:1px solid var(--warn-border);color:var(--warn-text)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center}.login-card{width:340px;display:flex;flex-direction:column;gap:14px}.login-card h1{text-align:center;margin-bottom:8px}.details{display:grid;grid-template-columns:160px 1fr;gap:6px 16px;margin:0 0 12px}.details dt{color:var(--muted);font-weight:600}.details dd{margin:0}.qr-controls{display:flex;align-items:center;gap:16px;margin:12px 0}.segmented{display:inline-flex;border:1px solid var(--border);border-radius:6px;overflow:hidden}.segmented button{border:none;background:#fff;padding:7px 16px;font:inherit;cursor:pointer}.segmented button.active{background:var(--primary);color:#fff}.qr-box{padding:16px;background:#fff;border:1px solid var(--border);border-radius:8px;display:inline-block}.json-view{margin-top:16px;padding:12px;background:#0f172a;color:#e2e8f0;border-radius:6px;overflow:auto;font-size:12px;max-height:420px}.muted{color:var(--muted)}.small{font-size:12px}