:root{--primary: #b91c1c;--primary-hover: #991b1b;--secondary: #374151;--secondary-hover: #1f2937;--bg: #f9fafb;--surface: #ffffff;--border: #e5e7eb;--text: #111827;--text-muted: #6b7280;--error-bg: #fef2f2;--error-border: #fca5a5;--error-text: #991b1b;--radius: 8px;--shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06)}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,sans-serif;font-size:14px;background:var(--bg);color:var(--text);line-height:1.5}.app{max-width:760px;margin:0 auto;padding:24px 16px 48px}header{margin-bottom:24px}h1{font-size:24px;font-weight:700;margin:0 0 4px;color:var(--primary)}.subtitle{margin:0;color:var(--text-muted);font-size:13px}h2{font-size:15px;font-weight:600;margin:0 0 16px;color:var(--text)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:16px}.preset-bar{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}.preset-controls{display:flex;align-items:center;gap:8px;flex:1}.preset-controls label{font-size:13px;font-weight:500;color:var(--text-muted);white-space:nowrap}.preset-controls select{flex:1;padding:6px 10px;border:1px solid var(--border);border-radius:var(--radius);font-size:13px;background:var(--surface);color:var(--text);min-width:0}.save-dialog{display:flex;align-items:center;gap:8px;margin-bottom:16px;flex-wrap:wrap}.save-dialog input{flex:1;padding:6px 10px;border:1px solid var(--border);border-radius:var(--radius);font-size:13px;min-width:0}.error-inline{font-size:12px;color:var(--error-text)}.fields-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}.field{display:flex;flex-direction:column;gap:4px}.field label{font-size:12px;font-weight:500;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em}.field input[type=number],.field input[type=text]{padding:7px 10px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;color:var(--text);background:var(--surface);width:100%;transition:border-color .15s}.field input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #b91c1c1f}.field-help{font-size:11px;color:var(--text-muted)}.preview-summary dl{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;margin:0}.preview-summary dt{font-size:12px;font-weight:500;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;align-self:center}.preview-summary dd{margin:0;font-size:14px;font-weight:600;color:var(--text)}.actions{margin-top:8px;display:flex;gap:12px}.btn{display:inline-flex;align-items:center;gap:8px;padding:8px 18px;border:none;border-radius:var(--radius);font-size:14px;font-weight:600;cursor:pointer;transition:background .15s,opacity .15s}.btn:disabled{opacity:.6;cursor:not-allowed}.btn--primary{background:var(--primary);color:#fff}.btn--primary:hover:not(:disabled){background:var(--primary-hover)}.btn--secondary{background:var(--secondary);color:#fff}.btn--secondary:hover:not(:disabled){background:var(--secondary-hover)}.btn--large{padding:10px 28px;font-size:15px}.spinner{display:inline-block;width:14px;height:14px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error-box{margin-top:16px;padding:14px 16px;background:var(--error-bg);border:1px solid var(--error-border);border-radius:var(--radius);color:var(--error-text)}.error-box pre{margin:8px 0 0;font-size:12px;white-space:pre-wrap;word-break:break-word}