:root{color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#0b1020;color:#edf2f7}*{box-sizing:border-box}body{margin:0;min-width:320px;background:radial-gradient(circle at 20% 0%,rgba(76,111,255,.18),transparent 28rem),radial-gradient(circle at 90% 10%,rgba(20,184,166,.1),transparent 26rem),linear-gradient(145deg,#0b1020,#111827,#070b14)}a{color:#8ec5ff;text-decoration:none}button,input,select{font:inherit}button{border:0;border-radius:999px;padding:.75rem 1rem;background:#dbeafe;color:#0b1020;cursor:pointer;font-weight:700;transition:transform .15s ease,background .15s ease}button:hover:not(:disabled){background:#bfdbfe;transform:translateY(-1px)}button:disabled{cursor:wait;opacity:.55}.app-shell{width:min(1440px,94vw);margin:0 auto;padding:1.4rem 0 2rem}.top-nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 0 1.65rem;border-bottom:1px solid rgba(148,163,184,.18);margin-bottom:1.25rem}.top-nav h1{margin:0;font-size:clamp(1.6rem,2.5vw,2.6rem)}.top-nav nav{display:flex;flex-wrap:wrap;gap:.5rem}.top-nav nav button{background:#0f172ab8;border:1px solid rgba(148,163,184,.22);color:#dbeafe}.top-nav nav button.active{background:#e0f2fe;color:#0b1020}.eyebrow{color:#93c5fd;font-size:.8rem;font-weight:800;letter-spacing:.12em;margin:0 0 .35rem;text-transform:uppercase}.panel{background:#0f172abd;border:1px solid rgba(148,163,184,.22);border-radius:1rem;box-shadow:0 18px 60px #00000038;padding:1.25rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.page-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.article-page{display:flex;justify-content:flex-start}.article-body{color:#d8e2ef;max-width:1050px;width:100%}.article-body h2{color:#f8fafc;font-size:clamp(2rem,4vw,3.8rem);line-height:1.04;margin:0 0 1.25rem}.article-body h3{color:#f8fafc;font-size:1.45rem;margin:2.2rem 0 .75rem}.article-body p{font-size:1.06rem;line-height:1.78;margin:0 0 1.1rem}.wide,.hero{grid-column:1 / -1}.hero h2{font-size:clamp(2rem,3.6vw,3.6rem);line-height:1.04;margin:0 0 1rem;max-width:980px}.hero p{color:#cbd5e1;font-size:1.08rem;line-height:1.7;max-width:1040px}.hero-actions,.button-row,.inline-fields{align-items:center;display:flex;flex-wrap:wrap;gap:.75rem}.hero-actions a{border:1px solid rgba(142,197,255,.45);border-radius:999px;padding:.8rem 1rem}.about-figure{background:#f1f5f9f5;padding:1rem}.about-figure img{border-radius:.65rem;display:block;width:100%}.inline-figure{background:#f1f5f9f5;border-radius:1rem;color:#182033;margin:2rem 0;max-width:680px;padding:.8rem}.inline-figure img{border-radius:.65rem;display:block;width:100%}.inline-figure figcaption{color:#334155;font-size:.92rem;line-height:1.5;margin-top:.75rem}.reference-note{border-left:4px solid #8ec5ff}.tutorial-intro{grid-column:1 / -1;max-width:980px}.tutorial-intro p{color:#cbd5e1;line-height:1.7}.etc-layout{display:grid;grid-template-columns:360px minmax(0,1fr);gap:1rem}.controls{align-self:start;position:sticky;top:1rem}.field{display:grid;gap:.35rem;margin:.7rem 0}.field span{color:#cbd5e1;font-size:.86rem}.field input,.field select{background:#090f1d;border:1px solid #24344d;border-radius:.7rem;color:#e9f0fb;padding:.62rem .7rem;width:100%}.results{display:grid;gap:1rem}.summary-grid{display:grid;gap:.75rem;grid-template-columns:repeat(4,minmax(0,1fr))}.summary-card{background:#0f172ad1;border:1px solid rgba(148,163,184,.18);border-radius:1rem;padding:1rem}.summary-card span,.summary-card small{color:#94a3b8;display:block}.summary-card strong{display:block;font-size:1.6rem;margin:.25rem 0}.panel-header{align-items:center;display:flex;justify-content:space-between;gap:1rem}.panel-header h3{margin:0 0 .8rem}.chart-wrap{height:320px}.stage-grid,.gallery-grid{display:grid;gap:1rem;grid-template-columns:repeat(2,minmax(0,1fr))}.figure-card img{border-radius:.8rem;display:block;width:100%}.clean-list{color:#cbd5e1;line-height:1.55;padding-left:1.2rem}.error-box{background:#f871711f;border:1px solid rgba(248,113,113,.35);border-radius:1rem;color:#fecaca;padding:1rem}.tool-row{display:grid;gap:1rem;grid-template-columns:1fr 1fr}pre{background:#050814;border-radius:.8rem;max-height:260px;overflow:auto;padding:1rem}footer{color:#94a3b8;display:flex;justify-content:space-between;gap:1rem;padding:2rem 0 .5rem;border-top:1px solid rgba(148,163,184,.16);margin-top:1.5rem}@media(max-width:980px){.top-nav,footer{align-items:flex-start;flex-direction:column}.etc-layout,.page-grid,.summary-grid,.stage-grid,.gallery-grid,.tool-row{grid-template-columns:1fr}.controls{position:static}}
