body { font: 16px/1.4 system-ui, sans-serif; margin: 0; padding: max(16px, env(safe-area-inset-top)) 16px 32px; background: #f4f8f1; color: #1d2b1f; }
h1 { color: #3f8f4f; }
button { font: inherit; padding: 10px 14px; margin: 4px 0; border-radius: 8px; border: 0; background: #3f8f4f; color: #fff; display: block; width: 100%; }
button:disabled { opacity: 0.4; }
pre { white-space: pre-wrap; word-break: break-all; background: #fff; padding: 8px; border-radius: 6px; font-size: 13px; }