body { font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; background:#f6f7fb; margin:0; }
.container { max-width: 960px; margin: 30px auto; padding: 0 16px; }
h1 { margin-bottom: 16px; }
.card { background:#fff; padding:18px; border-radius:14px; box-shadow:0 4px 16px rgba(0,0,0,0.06); margin-bottom:18px; }
.row { display:flex; gap:12px; align-items:center; margin:8px 0; }
label { min-width:130px; }
input, select { padding:10px; border:1px solid #ddd; border-radius:10px; width: 280px; }
button { padding:10px 16px; border:0; border-radius:12px; background:#3b82f6; color:#fff; cursor:pointer; }
button:hover { background:#2563eb; }
.info { background:#f1f5f9; padding:10px; border-radius:8px; }
.error { color:#b91c1c; }
table { width:100%; border-collapse: collapse; }
th, td { text-align:left; padding:10px; border-bottom:1px solid #eee; }
.total { font-size:1.1rem; margin-top:8px; }