:root{--bg:#0b0f14;--panel:#111821;--line:#1f2b38;--fg:#c9d6e2;--dim:#6b7f93;--acc:#3ddc97;--warn:#ffb454}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:13px/1.45 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
header{padding:14px 18px;border-bottom:1px solid var(--line);display:flex;flex-wrap:wrap;gap:8px 24px;align-items:baseline}
h1{margin:0;font-size:20px;letter-spacing:.12em}h1 span{color:var(--acc)}h1 small{font-size:11px;color:var(--dim);letter-spacing:0;margin-left:8px}
h2{margin:0 0 10px;font-size:12px;text-transform:uppercase;letter-spacing:.14em;color:var(--dim);display:flex;gap:12px;align-items:center}
h3{margin:0 0 6px;font-size:11px;color:var(--dim);text-transform:uppercase;letter-spacing:.1em}
.tick{color:var(--dim);font-size:11px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:14px;margin:12px 18px}
main{display:grid;grid-template-columns:1fr;gap:0}
@media(min-width:1100px){main{grid-template-columns:minmax(0,1fr) minmax(0,1.5fr)}main .panel{margin:0 0 0 18px}main .panel+.panel{margin:0 18px 0 12px}main{margin-top:12px}}
.params{display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center}
.params h2{margin:0}
label{color:var(--dim);display:inline-flex;align-items:center;gap:6px}
input,select,button{background:#0b1118;color:var(--fg);border:1px solid var(--line);border-radius:4px;padding:5px 8px;font:inherit}
input[type=number]{width:84px}input[type=range]{width:90px;padding:0}
button{cursor:pointer}button:hover{border-color:var(--acc)}
button.primary{background:#12301f;border-color:#1f6b45;color:var(--acc)}
.derived{color:var(--warn);margin-left:auto}
.controls{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:8px}
.algdesc{color:var(--dim);margin:4px 0 12px;min-height:2.9em}
.stage{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:700px){.stage{grid-template-columns:1.2fr 1fr}}
.drawer{display:grid;grid-template-columns:repeat(auto-fill,minmax(34px,1fr));gap:3px;background:#0b1118;border:1px solid var(--line);padding:6px;border-radius:4px;max-height:360px;overflow:auto}
.hand{min-height:58px;display:flex;flex-wrap:wrap;gap:3px;background:#0b1118;border:1px solid var(--line);padding:6px;border-radius:4px}
.sock{width:34px;height:40px;position:relative;transition:opacity .2s,transform .2s}
.sock svg{width:100%;height:100%;display:block}
.sock span{position:absolute;left:0;right:0;top:15px;text-align:center;font-size:10px;font-weight:700;color:#fff;text-shadow:0 0 2px #000,0 0 2px #000;pointer-events:none}
.drawer .sock.out{opacity:.12}
.sock.flash{transform:scale(1.25)}
.sock.match svg{filter:drop-shadow(0 0 5px var(--acc))}
.counter{margin:10px 0 6px}.counter b{color:var(--acc)}
.log{margin:0;background:#0b1118;border:1px solid var(--line);border-radius:4px;padding:6px;height:150px;overflow:auto;color:var(--dim);white-space:pre-wrap}
.tablewrap{overflow:auto}
table{border-collapse:collapse;width:100%;margin-bottom:10px}
th,td{padding:4px 6px;text-align:right;border-bottom:1px solid var(--line);white-space:nowrap}
th:first-child,td:first-child{text-align:left}
th{color:var(--dim);font-weight:400;font-size:11px}
td.best{color:var(--acc)}td.bad{color:var(--warn)}
canvas{width:100%;height:320px;background:#0b1118;border:1px solid var(--line);border-radius:4px}
.legend span{margin-right:12px}.legend i{display:inline-block;width:10px;height:3px;margin-right:4px;vertical-align:middle}
.note,footer{color:var(--dim);font-size:11px}
footer{padding:6px 18px 24px}