:root{--bg: #0b0f17;--bg2: #11161f;--panel: #151c27;--line: #222a36;--text: #e6ebf2;--dim: #9aa6b4;--gold: #f8cf63;--gold2: #e0a93a;--green: #4ade80;--red: #f87171;--blue: #60a5fa}*{box-sizing:border-box}html,body{margin:0;background:radial-gradient(1200px 600px at 70% -10%,#15233a 0%,var(--bg) 55%);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}a{color:var(--gold);text-decoration:none}a:hover{text-decoration:underline}.wrap{max-width:1080px;margin:0 auto;padding:0 20px}.hero{padding:64px 0 28px}.brand{display:flex;align-items:center;gap:14px}.logo{width:44px;height:44px}.brand h1{font-size:30px;margin:0;letter-spacing:-.5px}.brand h1 b{color:var(--gold)}.tag{font-size:22px;color:var(--text);margin:22px 0 8px;font-weight:600;line-height:1.3}.sub{color:var(--dim);font-size:16px;max-width:720px;line-height:1.6}.pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.pill{font-size:13px;color:var(--dim);border:1px solid var(--line);border-radius:999px;padding:5px 12px;background:var(--bg2)}.pill b{color:var(--gold);font-weight:600}.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}@media(max-width:820px){.grid2{grid-template-columns:1fr}}h2{font-size:22px;margin:48px 0 4px}.section-sub{color:var(--dim);margin:0 0 16px;font-size:15px}.demo-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.demo-head .ttl{font-weight:600}textarea.spec{width:100%;height:230px;resize:vertical;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:12.5px;line-height:1.5;color:#d7e0ea;background:#0c111a;border:1px solid var(--line);border-radius:10px;padding:12px;tab-size:2}.run-row{display:flex;align-items:center;gap:12px;margin-top:12px}button.run{background:linear-gradient(180deg,var(--gold),var(--gold2));color:#1a1206;font-weight:700;border:0;border-radius:10px;padding:11px 20px;cursor:pointer;font-size:15px}button.run:disabled{opacity:.6;cursor:default}.muted{color:var(--dim);font-size:13px}.err{color:var(--red);font-size:13px}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.metric{background:#0c111a;border:1px solid var(--line);border-radius:10px;padding:12px}.metric .k{color:var(--dim);font-size:12px}.metric .v{font-size:20px;font-weight:700;margin-top:3px;font-variant-numeric:tabular-nums}.v.pos{color:var(--green)}.v.neg{color:var(--red)}#chart{width:100%;height:300px}table.trades{width:100%;border-collapse:collapse;font-size:13px}table.trades th,table.trades td{text-align:right;padding:7px 10px;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums}table.trades th{color:var(--dim);font-weight:600}table.trades td:first-child,table.trades th:first-child{text-align:left}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}@media(max-width:820px){.cards{grid-template-columns:1fr}.metrics{grid-template-columns:repeat(2,1fr)}}.card h3{margin:0 0 6px;font-size:16px}.card p{margin:0;color:var(--dim);font-size:14px;line-height:1.6}footer{border-top:1px solid var(--line);margin-top:56px;padding:28px 0 60px;color:var(--dim);font-size:14px}footer .links{display:flex;flex-wrap:wrap;gap:18px;margin-bottom:12px}.topnav{margin-left:auto;display:flex;gap:18px;font-size:14px}.topnav a{color:var(--dim)}.topnav a:hover{color:var(--gold);text-decoration:none}@media(max-width:720px){.topnav{display:none}}.presetbar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}.preset{background:var(--bg2);color:var(--text);border:1px solid var(--line);border-radius:999px;padding:7px 14px;cursor:pointer;font-size:13.5px}.preset:hover{border-color:#3a4556}.preset.on{background:linear-gradient(180deg,var(--gold),var(--gold2));color:#1a1206;border-color:var(--gold);font-weight:600}.preset-desc{margin:0 0 16px;max-width:760px;line-height:1.5}.sel,.cap{background:#0c111a;border:1px solid var(--line);color:#d7e0ea;border-radius:6px;padding:4px 6px;font-size:13px}.cap{width:90px}.chart{width:100%}.tbl-scroll{max-height:320px;overflow:auto}code{background:#0c111a;border:1px solid var(--line);border-radius:5px;padding:1px 6px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px;color:#d7e0ea}.card p code{font-size:12px}.install{display:grid;grid-template-columns:1fr 1fr;gap:10px}@media(max-width:720px){.install{grid-template-columns:1fr}}.ins{display:flex;align-items:center;gap:12px;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:10px 14px}.ins .lang{min-width:64px;color:var(--gold);font-weight:600;font-size:13px}.ins code{background:transparent;border:0;padding:0;color:#cdd7e2}.cb{display:flex;flex-direction:column}.loadbtn{margin-top:12px;align-self:flex-start;background:transparent;color:var(--gold);border:1px solid var(--line);border-radius:8px;padding:6px 12px;cursor:pointer;font-size:13px}.loadbtn:hover{border-color:var(--gold)}.hero h1{font-size:30px;margin:0;letter-spacing:-.5px}.hero h1 b{color:var(--gold)}.topbar{background:var(--bg);margin:0 -20px}.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;height:55px;padding:0 16px;border-bottom:1px solid var(--line)}.nav-brand{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--text)}.nav-brand:hover{text-decoration:none}.nav-logo{display:block;width:24px;height:24px}.nav-title{font-size:16px;font-weight:600}.nav-menu{display:flex;align-items:center;gap:22px}.nav-menu a{color:var(--text);text-decoration:none;font-size:14px;font-weight:500;opacity:.85}.nav-menu a:hover{color:var(--gold);opacity:1;text-decoration:none}.nav-burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:34px;height:34px;padding:7px;background:none;border:none;cursor:pointer}.nav-burger span{display:block;width:100%;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease,opacity .2s ease}.nav-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}.nav-burger.open span:nth-child(2){opacity:0}.nav-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.wk-footer{box-sizing:border-box;border-top:1px solid var(--line);background:var(--bg);margin:56px -20px 0;padding:18px 20px 40px;text-align:center}.wk-footer-badges{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:6px 8px;margin:0 0 10px}.wk-footer-badges a{display:inline-flex}.wk-footer-badges a:hover{text-decoration:none}.wk-footer-badges img{height:16px;width:auto;display:block}.wk-footer-meta{margin:0;color:var(--dim);font-size:12px;line-height:1.55}.wk-footer-meta-sub{margin-top:4px;color:#6f7b8a}.wk-footer-meta .wk-sep{margin:0 8px;opacity:.5}.wk-footer-meta a{color:inherit;text-decoration:inherit}.wk-footer-meta a:hover{color:var(--gold)}@media(max-width:720px){.topbar{position:sticky;top:0;z-index:30}.nav{height:55px;padding:0 12px;position:relative}.nav-title{font-size:15px}.nav-burger{display:flex}.nav-menu{display:none;position:absolute;top:100%;right:8px;z-index:40;flex-direction:column;min-width:190px;background:var(--bg2);border:1px solid var(--line);border-radius:10px;padding:6px;box-shadow:0 12px 32px -12px #0000008c}.nav-menu.open{display:flex}.nav-menu a{padding:10px 12px;border-radius:6px;font-size:14px;opacity:.9}.nav-menu a:hover{background:var(--bg);opacity:1}.wk-footer{padding:14px 12px 32px}.wk-footer-meta .wk-sep{margin:0 6px}}