:root { font: 15px/1.65 system-ui, sans-serif; color: #202a30; background: #f3f6f7; }
* { box-sizing: border-box; }
body { margin: 0; }
main { max-width: 1040px; margin: auto; padding: 28px 24px 64px; }
header { border-bottom: 2px solid #176b61; padding-bottom: 18px; }
.connection-status { padding: 12px 0; border-bottom: 1px solid #ccd5d9; }
.connection-status p { margin: 0 0 6px; color: #202a30; }
h1 { font-size: 30px; margin: 12px 0 0; }
h2 { font-size: 20px; margin: 0 0 16px; }
section { padding: 24px 0; border-bottom: 1px solid #ccd5d9; }
p { color: #52636d; overflow-wrap: anywhere; }
a { color: #176b61; }
form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
label { display: grid; gap: 6px; }
.toggle { grid-column: 1 / -1; display: flex; align-items: center; gap: 10px; }
input:not([type=checkbox]) { width: 100%; padding: 10px; border: 1px solid #aab9c0; border-radius: 4px; font: inherit; background: white; }
input[type=checkbox] { width: 20px; height: 20px; accent-color: #176b61; }
button { font: inherit; min-height: 44px; padding: 9px 16px; border: 1px solid #aab9c0; background: white; border-radius: 4px; color: #202a30; cursor: pointer; }
button:hover { background: #e6f0ed; }
button:disabled { opacity: .5; cursor: not-allowed; }
button:focus-visible,input:focus-visible { outline: 3px solid #297eab; outline-offset: 2px; }
#run { background: #176b61; color: white; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; }
pre { white-space: pre-wrap; overflow-wrap: anywhere; max-height: 420px; overflow: auto; background: #e8edf0; padding: 16px; border-radius: 4px; }
@media(max-width:600px) { main { padding: 20px 16px; } form { grid-template-columns: minmax(0, 1fr); } input:not([type=checkbox]) { font-size: 16px; } .actions button { flex: 1 1 100%; } }