body { font-family: Arial, sans-serif; background: #fafafa; margin: 0; }
.container { max-width: 760px; margin: 24px auto; padding: 0 16px; }
.card { background: white; border: 1px solid #ddd; border-radius: 10px; padding: 16px; }
label { display:block; margin-top: 10px; font-weight: 700; }
input, select, textarea { width: 100%; padding: 10px; margin-top: 6px; box-sizing: border-box; }
button { margin-top: 16px; padding: 12px 16px; font-weight: 700; cursor: pointer; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
hr { margin: 18px 0; border: 0; border-top: 1px solid #eee; }
code { background: #f3f3f3; padding: 2px 6px; border-radius: 6px; }