body { font-family: system-ui, sans-serif; max-width: 640px; margin: 2rem auto; padding: 0 1rem; color: #222; }
h1 { font-size: 1.4rem; }
header { display: flex; justify-content: space-between; align-items: center; }
.login { display: flex; flex-direction: column; gap: 0.75rem; max-width: 320px; margin: 4rem auto; }
label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.9rem; margin-bottom: 0.5rem; }
input, button { padding: 0.5rem; font-size: 1rem; }
button { cursor: pointer; }
.error { color: #b00020; }
fieldset { margin-bottom: 0.75rem; }
section { margin-bottom: 2rem; }
.kill-switch-warning { background: #fff3cd; border: 1px solid #b00020; border-radius: 4px; padding: 0.75rem 1rem; }