:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:#171717;background:#f3efe7;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{background:radial-gradient(circle at 20% 0,#dd6fc724,#0000 30rem),linear-gradient(135deg,#fffdf8,#efe7d6);min-width:320px;min-height:100vh;margin:0}button,textarea,input{font:inherit}button,.upload{color:#222;cursor:pointer;background:#fffaf0;border:1px solid #d7d0c2;border-radius:8px;align-items:center;gap:.45rem;min-height:44px;padding:.7rem .95rem;font-weight:800;display:inline-flex}button:hover,.upload:hover{border-color:#0f667c}button:disabled{cursor:wait;opacity:.65}.primary{color:#fff;background:#0f667c;border-color:#0f667c}.app-shell{grid-template-columns:minmax(0,1fr) minmax(20rem,27rem);gap:1rem;min-height:100vh;padding:clamp(.75rem,2vw,1.25rem);display:grid}.stage-panel,.data-panel{background:#fffaf0e6;border:1px solid #34474829;border-radius:8px;box-shadow:0 20px 60px #342b1f1f}.stage-panel{grid-template-rows:auto minmax(20rem,1fr);min-width:0;display:grid;overflow:hidden}.stage-header{border-bottom:1px solid #3447481f;justify-content:space-between;align-items:center;gap:1rem;padding:clamp(1rem,2vw,1.35rem);display:flex}.stage-header h1{letter-spacing:0;margin:.1rem 0;font-size:clamp(1.75rem,3.6vw,3.5rem);line-height:.95}.stage-header p,.hint,.status,.next-box p{color:#66645d;margin:0;line-height:1.45}.eyebrow{color:#0f667c;letter-spacing:.08em;text-transform:uppercase;margin:0;font-size:.78rem;font-weight:900}.actions,.panel-row{flex-wrap:wrap;gap:.6rem;display:flex}.sankey-frame{background:#fff;min-height:34rem;position:relative;overflow:hidden}.sankey-frame canvas{display:block}.data-panel{align-content:start;gap:.85rem;padding:clamp(1rem,2vw,1.35rem);display:grid}.data-panel h2{margin:0;font-size:1.45rem}textarea{color:#f8fafc;resize:vertical;background:#111827;border:1px solid #ffffff1f;border-radius:8px;outline:none;width:100%;min-height:19rem;padding:1rem}textarea:focus{border-color:#0f667c;box-shadow:0 0 0 3px #0f667c1f}.upload{position:relative}.upload input{opacity:0;position:absolute;inset:0}.error{color:#b42318;margin:0;font-weight:800;line-height:1.35}.status{color:#0f667c;font-weight:800}.slider-label{justify-content:space-between;align-items:center;margin-top:.5rem;display:flex}input[type=range]{accent-color:#0f667c;width:100%}.next-box{background:#0f667c14;border:1px solid #0f667c24;border-radius:8px;padding:1rem}.next-box h3{margin:0 0 .25rem}@media (width<=980px){.app-shell{grid-template-columns:1fr}.stage-header{flex-direction:column;align-items:flex-start}.sankey-frame{min-height:28rem}}