body{color:#222;background:#f7f7f8;margin:0;font-family:Inter,Arial,sans-serif}.app{min-height:100vh;display:flex}aside{color:#fff;box-sizing:border-box;background:#111827;width:260px;padding:24px}aside button{color:#fff;text-align:left;background:#1f2937;border:0;border-radius:12px;width:100%;margin:8px 0;padding:12px;display:block}button.active,aside button:hover{background:#6366f1}main{flex:1;padding:32px}.cards{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.cards div,.form,.block,table{background:#fff;border-radius:16px;margin-bottom:16px;padding:16px;box-shadow:0 4px 16px #0001}.form{flex-wrap:wrap;gap:8px;display:flex}input,select,textarea{border:1px solid #ddd;border-radius:10px;min-width:180px;padding:10px}textarea{width:100%;min-height:90px}button{color:#fff;cursor:pointer;background:#4f46e5;border:0;border-radius:10px;padding:10px 14px}.split{grid-template-columns:260px 1fr;gap:20px;display:grid}.split>div:first-child button{width:100%;margin-bottom:8px;display:block}table{border-collapse:collapse;width:100%}td{border-bottom:1px solid #eee;padding:10px}