:root{--ink:#111827;--muted:#6b7280;--line:#e5e7eb;--bg:#f7f8fb;--panel:#fff;--green:#15803d;--red:#b91c1c;--blue:#1d4ed8}
*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--bg);color:var(--ink)}a{color:inherit}.shell{min-height:100vh}.top{position:sticky;top:0;z-index:5;background:#fff;border-bottom:1px solid var(--line);padding:12px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}.brand{font-weight:800}.nav{display:flex;gap:8px;overflow:auto}.nav a{padding:9px 11px;border-radius:8px;text-decoration:none;color:#374151;white-space:nowrap}.nav a:hover,.nav a.active{background:#111827;color:#fff}.main{max-width:1180px;margin:0 auto;padding:16px}.grid{display:grid;gap:12px}.cards{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}.card,.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:14px}.metric{font-size:24px;font-weight:850;margin-top:6px}.muted{color:var(--muted);font-size:13px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:8px;background:#fff}table{width:100%;border-collapse:collapse;min-width:760px}th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);font-size:14px}th{background:#f9fafb;color:#374151;font-size:12px;text-transform:uppercase;letter-spacing:.03em}.pill{display:inline-flex;padding:4px 8px;border-radius:999px;background:#fef3c7;font-size:12px}.pill.paid{background:#dcfce7;color:#166534}.pill.sent{background:#dbeafe;color:#1e40af}.pill.bad{background:#fee2e2;color:#991b1b}.form{display:grid;gap:12px}.two{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}label{display:grid;gap:5px;font-size:13px;font-weight:700}input,select,textarea{width:100%;border:1px solid #d1d5db;border-radius:8px;padding:11px;font:inherit;background:#fff}textarea{min-height:96px}.btn{border:0;border-radius:8px;padding:11px 14px;background:#111827;color:#fff;font-weight:800;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}.btn.secondary{background:#e5e7eb;color:#111827}.btn.green{background:#15803d}.btn.red{background:#991b1b}.actions{display:flex;gap:8px;flex-wrap:wrap}.notice{border-radius:8px;padding:12px;background:#ecfdf5;color:#166534;border:1px solid #bbf7d0}.error{border-radius:8px;padding:12px;background:#fef2f2;color:#991b1b;border:1px solid #fecaca}.login{max-width:420px;margin:8vh auto;padding:16px}.customer{max-width:560px;margin:0 auto;padding:20px 14px}.hero{padding:20px 0}.qr{max-width:230px;width:100%;display:block;margin:16px auto;border-radius:8px}.footer-space{height:76px}.sticky{position:fixed;left:0;right:0;bottom:0;background:#fff;border-top:1px solid var(--line);padding:12px}.sticky .btn{width:100%;max-width:520px;margin:0 auto;display:flex}@media(min-width:860px){.admin-layout{display:grid;grid-template-columns:220px 1fr}.top{display:block;height:100vh;position:sticky}.nav{margin-top:20px;display:grid}.main{padding:24px}.mobile-only{display:none}}@media(max-width:859px){.top{flex-wrap:wrap}.brand{width:100%}.main{padding:12px}table{font-size:13px}}