body { font-family: system-ui, sans-serif; background: #f4f7fb; color: #18212f; margin: 0; }
main { max-width: 760px; margin: 56px auto; padding: 32px; background: white; border-radius: 12px; box-shadow: 0 8px 30px #1b35501a; }
code, pre { background: #edf2f7; padding: 3px 6px; border-radius: 4px; }
section { margin-top: 28px; } input, button { box-sizing: border-box; padding: 10px; margin: 4px 0; } input { width: 100%; } button { background: #1769aa; color: white; border: 0; border-radius: 5px; cursor: pointer; } table { width: 100%; border-collapse: collapse; } th, td { text-align: left; padding: 8px; border-bottom: 1px solid #dfe7ef; } .error { color: #b42318; } .success { color: #087443; }