@import "https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=Inter:wght@400;500;600&display=swap";:root{--neural:#f59322;--symbolic:#0877bd;--output:#8e44ad;--pos:#c8f135;--accent:#0877bd;--acid:#c8f135;--bg:#080810;--panel:#0e0e22;--panel-2:#13132e;--ink:#e0e0f4;--muted:#7878b0;--line:#1e1e3c;--line-strong:#2e2e52;--radius:10px;--shadow:0 1px 3px #00000073, 0 1px 2px #00000059;--shadow-lg:0 8px 24px #00000080;--font-mono:"JetBrains Mono", monospace;color:var(--ink);background:var(--bg);font-family:Inter,Helvetica Neue,Arial,system-ui,sans-serif}*{box-sizing:border-box}html,body{min-height:100vh;margin:0;padding:0}#app{flex-direction:column;min-height:100vh;display:flex}button{cursor:pointer;font-family:inherit}.topbar{border-bottom:1px solid var(--line);height:52px;color:var(--ink);z-index:50;background:#111128;align-items:center;gap:12px;padding:0 24px;display:flex;position:sticky;top:0}.topbar h1{font-family:var(--font-mono);letter-spacing:.3px;margin:0;font-size:14px;font-weight:500}.topbar .brand-mark{object-fit:contain;width:28px;height:28px;display:block}.topbar .spacer{flex:1}.stepper{align-items:center;gap:8px;font-size:13px;display:flex}.stepper .step{color:#ffffffa6;cursor:pointer;white-space:nowrap;background:#ffffff14;border-radius:20px;align-items:center;gap:6px;padding:4px 10px;display:flex}.stepper .step.active{color:#fff;background:#ffffff38}.stepper .sep{color:#fff6}.view{flex:1;width:100%;max-width:1160px;margin:0 auto;padding:28px 24px 48px}.view-head{margin-bottom:20px}.view-head h2{margin:0 0 4px;font-size:22px;font-weight:500}.view-head p{color:var(--muted);margin:0;font-size:14px}.card-grid{grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px;display:grid}.situation-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);cursor:pointer;flex-direction:column;gap:10px;padding:18px;transition:transform .12s,box-shadow .12s,border-color .12s;display:flex}.situation-card:hover{box-shadow:var(--shadow-lg);border-color:var(--symbolic);transform:translateY(-3px)}.situation-card.selected{border-color:var(--symbolic);box-shadow:0 0 0 2px #0877bd40, var(--shadow)}.situation-card .icon{color:var(--symbolic)}.situation-card .icon svg{width:30px;height:30px;display:block}.situation-card h3{margin:0;font-size:16px;font-weight:500}.situation-card .tagline{color:var(--muted);margin:0;font-size:13px;line-height:1.45}.fit-card{background:var(--panel-2);border:1px solid var(--line);border-radius:8px;padding:7px 10px}.fit-card-label{text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-size:10px;font-weight:600}.fit-card-value{color:var(--symbolic);margin-top:2px;font-size:13px;font-weight:600}.how-to-play{color:var(--symbolic);font-size:12px;text-decoration:none}.how-to-play:hover{text-decoration:underline}.complexity{color:var(--muted);align-items:center;gap:3px;margin-top:auto;font-size:11px;display:inline-flex}.complexity .dot{background:var(--line-strong);border-radius:50%;width:7px;height:7px}.complexity .dot.on{background:var(--symbolic)}select{border:1px solid var(--line-strong);background:var(--panel);color:var(--ink);border-radius:8px;padding:6px 10px;font-family:inherit;font-size:13px}select:hover{background:var(--panel-2)}.btn{border:1px solid var(--line-strong);background:var(--panel);color:var(--ink);border-radius:8px;padding:9px 18px;font-size:14px;transition:background .12s,border-color .12s,transform 60ms}.btn:hover{background:var(--panel-2)}.btn:active{transform:translateY(1px)}.btn.primary{background:var(--symbolic);border-color:var(--symbolic);color:#fff}.btn.primary:hover{background:#0a6aa8}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-row{flex-wrap:wrap;align-items:center;gap:12px;margin-top:24px;display:flex}.metric-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}.metric-card .label{text-transform:uppercase;letter-spacing:.5px;color:var(--muted);font-size:12px}.metric-card .value{margin:6px 0;font-size:30px;font-weight:600}.meter{background:var(--line);border-radius:4px;height:8px;overflow:hidden}.meter>span{border-radius:4px;height:100%;transition:width .3s;display:block}.note{background:var(--panel-2);border:1px solid var(--line);color:var(--ink);border-radius:10px;padding:14px 16px;font-size:13px;line-height:1.5}.note.warn{color:#ffc861;background:#ffaa0014;border-color:#ffaa0047}.flow-demo{min-height:96px}.flow-node{border:1px solid var(--line);text-align:center;white-space:pre-line;border-radius:12px;place-items:center;min-height:72px;padding:14px 12px;font-size:12px;font-weight:600;transition:opacity .25s,transform .25s,filter .25s;display:grid}.flow-node.pending,.flow-arrow.pending{opacity:.28}.flow-node.pending{filter:grayscale(.65);transform:scale(.98)}.flow-node.neural{color:var(--neural);background:#f593221a;border-color:#f5932266}.flow-node.symbolic{color:#4db4f0;background:#0877bd1f;border-color:#0877bd66}.flow-node.output{color:#d19ae8;background:#8e44ad1f;border-color:#8e44ad66}.flow-payload{width:100%;font-family:var(--font-mono), "SFMono-Regular", ui-monospace, monospace;text-align:left;white-space:normal;word-break:break-word;background:#ffffff0f;border:1px solid #ffffff1a;border-radius:8px;padding:8px 10px;font-size:11px;font-weight:600;line-height:1.5;display:block}.flow-arrow{color:var(--muted);flex-shrink:0;justify-content:center;align-items:center;font-size:20px;display:flex}.lab-grid{gap:8px;width:fit-content;margin-top:18px;display:grid}.lab-token-row{flex-wrap:wrap;gap:10px;margin-top:18px;display:flex}.lab-token{border:1px solid var(--line);background:var(--panel);min-height:42px;color:var(--ink);font:inherit;border-radius:9px;padding:10px 14px;font-weight:600}button.lab-token{cursor:pointer}.muted{color:var(--muted)}.center{text-align:center}.seg{flex-wrap:wrap;gap:8px;margin:4px 0 14px;display:flex}.seg-btn{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);min-width:150px;box-shadow:var(--shadow);cursor:pointer;text-align:left;flex-direction:column;flex:1 1 0;gap:2px;padding:10px 12px;transition:border-color .15s,background .15s;display:flex}.seg-btn:hover{border-color:var(--symbolic)}.seg-btn.active{border-color:var(--symbolic);background:#0877bd1f}.seg-flow{color:var(--ink);font-size:13px;font-weight:600}.badge{border-radius:999px;padding:2px 9px;font-size:12px;font-weight:600;display:inline-block}.badge-strong{color:#f5a94e;background:#f5932224;border:1px solid #f5932259}.badge-weak{color:#4ed98a;background:#2ecc7124;border:1px solid #2ecc7159}.badge-seen{color:var(--muted);border:1px solid var(--line-strong);background:#ffffff0f}.badge-heldout{color:#4db4f0;background:#0877bd24;border:1px solid #0877bd59}.digit-picker{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.digit-picker-label{min-width:60px;font-size:12px}.digit-thumb{border:2px solid var(--line-strong);background:var(--panel);border-radius:6px;place-items:center;width:34px;height:34px;padding:2px;display:grid;overflow:hidden}.digit-thumb img{object-fit:contain;width:100%;height:100%}.digit-thumb:hover{border-color:var(--pos)}.digit-thumb.active{border-color:var(--pos);background:#c8f13514}.compound-picker{flex-wrap:wrap;gap:8px;display:flex}.compound-token{border:2px solid var(--line-strong);background:var(--panel);cursor:pointer;text-align:left;border-radius:8px;flex-direction:column;align-items:flex-start;gap:2px;min-width:140px;padding:8px 12px;display:flex}.compound-token .name{color:var(--ink);font-size:13px;font-weight:600}.compound-token .note{color:var(--muted);font-size:11px}.compound-token:hover{border-color:var(--pos)}.compound-token.active{border-color:var(--pos);background:#c8f13514}.landing{min-height:100vh;position:relative;overflow:hidden}.landing-grid-bg{pointer-events:none;z-index:0;background-image:linear-gradient(#0877bd14 1px,#0000 1px),linear-gradient(90deg,#0877bd14 1px,#0000 1px);background-size:60px 60px;position:fixed;inset:0}.landing-content{z-index:1;position:relative}.landing-nav{border-bottom:1px solid var(--line);align-items:center;gap:10px;height:60px;padding:0 40px;display:flex}.landing-nav-mark{object-fit:contain;width:24px;height:24px}.landing-nav-title{font-family:var(--font-mono);color:#c0c0e0;font-size:13px;font-weight:500}.landing-hero{max-width:620px;margin:0 auto;padding:96px 40px 80px}.landing-hero h1{font-family:var(--font-mono);color:#f0f0ff;letter-spacing:-.03em;margin:0 0 24px;font-size:clamp(30px,5vw,50px);font-weight:500;line-height:1.15}.landing-hero h1 .acid{color:var(--acid)}.landing-hero p{color:var(--muted);margin:0 0 36px;font-size:16px;line-height:1.7}.landing-cta{font-family:var(--font-mono);color:var(--bg);background:var(--acid);cursor:pointer;border:none;border-radius:6px;padding:14px 32px;font-size:13px;transition:transform .12s,box-shadow .12s}.landing-cta:hover{box-shadow:0 0 0 4px #c8f1352e}.landing-footer{border-top:1px solid var(--line);justify-content:space-between;align-items:center;padding:24px 40px;display:flex}.landing-footer-brand{font-family:var(--font-mono);color:#30306a;align-items:center;gap:8px;font-size:11px;display:flex}.landing-footer-brand img{object-fit:contain;opacity:.45;width:16px;height:16px}.landing-footer span:last-child{font-family:var(--font-mono);color:#20204a;font-size:11px}