.layout{max-width:960px;margin:0 auto;padding:1rem}.muted{color:#666}body{transition:background-color .3s ease}body.bg-success{background-color:#d4edda}body.bg-error{background-color:#f8d7da}.pure-checkbox{margin:.5rem 0;display:block}.checkbox-row{display:flex;flex-wrap:wrap;align-items:center;gap:1rem;margin:1rem 0}.inline-checkbox{display:inline-block;margin:0;white-space:nowrap}.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin:1rem 0}@media(max-width:768px){.stats-grid{grid-template-columns:1fr}}#possibleChars{font-size:1rem;transition:font-size .1s ease}#possibleChars-container{position:relative;overflow:hidden}#status-display{color:#00008b;margin-top:10px;white-space:pre-wrap;font-family:monospace;font-weight:700}.button-row{display:flex;gap:.5rem;margin-top:1rem}.button-row button{flex:1}input[readonly]{background-color:#f5f5f5;cursor:not-allowed}.error-message{color:#c62828;font-weight:700;margin:.5rem 0;min-height:1.5rem}.s2k-form{margin:1rem 0;border:1px solid #ccc;border-radius:4px;padding:1rem;background-color:#f9f9f9}.s2k-form legend{font-weight:700;font-size:1.1rem;padding:0 .5rem}.s2k-fields{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1rem;margin-top:.5rem}@media(max-width:768px){.s2k-fields{grid-template-columns:1fr}}.s2k-form input[readonly]{background-color:#f5f5f5;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,Liberation Mono,monospace;font-size:.9rem}.title{margin:.2rem 0}.actions{display:flex;gap:.5rem;flex-wrap:wrap;margin:.5rem 0 1rem}.bar{width:100%;height:8px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}.button-warning{background:#d9534f;color:#fff}.vlist{position:relative;border:1px solid #ccc;border-radius:6px;background:#fafafa;overflow:auto;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,Liberation Mono,monospace;line-height:1.3;height:320px;user-select:none;-webkit-user-select:none}.vlist-spacer{height:0px}.vlist-viewport{position:absolute;top:0;left:0;right:0;white-space:pre;padding:.5rem}.pw-line{white-space:pre}.pw-pending{color:#444}.pw-test{color:#1e88e5}.pw-ok{color:#2e7d32}.pw-fail{color:#c62828}