:root{color-scheme:light}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;margin:0;padding:0}main{max-width:1100px;margin:0 auto;padding:16px}label{display:block;margin:8px 0 4px;font-weight:600}button,input,select{padding:8px;font-size:14px}table{border-collapse:collapse;width:100%}td,th{border:1px solid #ddd;padding:8px;text-align:left}small{color:#666}.card{border:1px solid #ddd;border-radius:10px;padding:14px}.row{display:flex;gap:12px;flex-wrap:wrap}.row>div{flex:1 1 220px}