*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;background:#f3f4f6;color:#111827}.side{position:fixed;left:0;top:0;bottom:0;width:230px;background:#111827;color:#fff;padding:18px;display:flex;flex-direction:column;gap:8px}.brand{font-weight:800;font-size:22px;margin-bottom:16px}.side a{color:#e5e7eb;text-decoration:none;padding:12px;border-radius:12px}.side a:hover{background:#1f2937}.main{margin-left:230px;padding:22px}.top{display:flex;gap:16px;align-items:center;margin-bottom:18px}.back,.btn{display:inline-block;background:#111827;color:#fff;border:0;border-radius:10px;padding:10px 14px;text-decoration:none;cursor:pointer}.btn.green{background:#059669}.btn.red{background:#dc2626}.btn.gray{background:#6b7280}.card{background:white;border-radius:18px;padding:18px;box-shadow:0 8px 24px #00000010;margin-bottom:16px}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}input,select,textarea{width:100%;padding:12px;border:1px solid #d1d5db;border-radius:12px;margin:4px 0 10px}table{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden}th,td{padding:12px;border-bottom:1px solid #e5e7eb;text-align:left}th{background:#f9fafb}.total{font-size:34px;font-weight:900}.muted{color:#6b7280}.actions{display:flex;gap:8px;flex-wrap:wrap}.pill{padding:6px 10px;border-radius:999px;background:#e5e7eb}.receipt{max-width:360px;margin:auto;background:white;padding:18px;font-family:monospace}.receipt h2{text-align:center}.center{text-align:center}@media(max-width:800px){.side{position:static;width:auto;flex-direction:row;overflow:auto}.main{margin-left:0}.grid,.grid3{grid-template-columns:1fr}}
.btn.danger{background:#dc2626;color:#fff;border-color:#dc2626}
.btn.danger:hover{filter:brightness(.95)}
.btn.small{padding:6px 10px;font-size:12px;border-radius:8px}