.aks{--bg:#f3f6fb;--card:#fff;--fg:#15213a;--muted:#5b6880;--line:#d8e0ec;--accent:#0b63d6;--soft:#e4eefb;--metal:#1d6fd1;--nonmetal:#15803d;--salt:#b45309;--note:#fef3c7;--notefg:#92400e;--font:"Nunito", "Segoe UI", system-ui, sans-serif;background:var(--bg);min-height:100%;color:var(--fg);font-family:var(--font);padding-left:max(16px, env(safe-area-inset-left,0px));padding-right:max(16px, env(safe-area-inset-right,0px));margin:0;padding-block:24px 48px;font-size:16px;line-height:1.5}@media (prefers-color-scheme:dark){.aks:not([data-theme=light]){--bg:#0f1726;--card:#182238;--fg:#eef2fa;--muted:#a9b5cc;--line:#2b3850;--accent:#6aa8ff;--soft:#1f2d49;--metal:#6aa8ff;--nonmetal:#4ade80;--salt:#fbbf24;--note:#3b2d0c;--notefg:#fcd34d;--lightningcss-light: ;--lightningcss-dark:initial;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}.aks[data-theme=dark]{--bg:#0f1726;--card:#182238;--fg:#eef2fa;--muted:#a9b5cc;--line:#2b3850;--accent:#6aa8ff;--soft:#1f2d49;--metal:#6aa8ff;--nonmetal:#4ade80;--salt:#fbbf24;--note:#3b2d0c;--notefg:#fcd34d;--lightningcss-light: ;--lightningcss-dark:initial;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}.aks,.aks *,.aks :before,.aks :after{box-sizing:border-box}.aks .wrap{max-width:1200px;margin:0 auto}.aks h1,.aks h2,.aks h3{text-wrap:balance;margin:0;line-height:1.15}.aks h1{font-size:clamp(26px,3.6vw,40px);font-weight:900}.aks .eyebrow{letter-spacing:.12em;text-transform:uppercase;color:var(--accent);font-size:12px;font-weight:900}.aks .sub{max-width:65ch;color:var(--muted);margin-top:8px;font-weight:600}.aks header{margin-bottom:20px}.aks .board{border:1px solid var(--line);background:var(--card);border-radius:24px;padding:16px}@media (width>=640px){.aks .board{padding:24px}}.aks .trees{gap:16px;display:grid}@media (width>=860px){.aks .trees{grid-template-columns:1fr 1fr}}.aks .tree{--gc:var(--metal);border:1px solid var(--line);border-radius:18px;min-width:0;padding:14px}.aks .tree.nonmetal{--gc:var(--nonmetal)}.aks .tree>.head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;display:flex}.aks .tree h2{font-size:18px;font-weight:900}.aks .picks{gap:6px;display:flex}.aks .picks button{border:2px solid var(--line);background:var(--card);min-width:40px;color:var(--fg);font:inherit;cursor:pointer;border-radius:10px;padding:4px 8px;font-size:14px;font-weight:900}.aks .picks button[aria-pressed=true]{border-color:var(--accent);background:var(--accent);color:#fff}.aks .flow{flex-direction:column;align-items:center;margin-top:12px;display:flex}.aks .gen{flex-direction:column;align-items:center;width:100%;display:flex}.aks .node{border:2px solid var(--gc);background:color-mix(in oklab, var(--gc) 14%, var(--card));width:100%;max-width:22rem;color:color-mix(in oklab, var(--gc) 65%, var(--fg));text-align:center;border-radius:18px;padding:10px 16px}.aks .node .cls{letter-spacing:.1em;text-transform:uppercase;opacity:.75;font-size:11px;font-weight:900;display:block}.aks .node .formula{font-size:26px;font-weight:900;display:block}.aks .node .name{font-size:14px;font-weight:700;display:block}.aks .steprow{flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;width:100%;margin:4px 0;display:flex}.aks .step{color:var(--accent);font:inherit;cursor:pointer;background:0 0;border:0;border-radius:10px;flex-direction:column;flex:none;align-items:center;gap:2px;padding:4px 10px;font-size:12px;font-weight:900;display:flex}.aks .step:hover{background:color-mix(in oklab, var(--accent) 12%, transparent)}.aks .step[aria-pressed=true]{background:color-mix(in oklab, var(--accent) 12%, transparent);box-shadow:0 0 0 2px color-mix(in oklab, var(--accent) 40%, transparent)}.aks .step .stem{background:color-mix(in oklab, var(--accent) 50%, transparent);width:2px;height:12px;display:block}.aks .eqbox{border:2px solid color-mix(in oklab, var(--accent) 35%, transparent);background:var(--soft);text-align:left;border-radius:14px;flex:15rem;min-width:15rem;padding:12px}.aks .eqbox .eq{margin:0;font-size:17px;font-weight:900;overflow-x:auto}.aks .eqbox p+p{margin:6px 0 0;font-size:14px;font-weight:600}.aks .meet{flex-direction:column;align-items:center;margin-top:16px;display:flex}.aks .meet>p{text-align:center;color:var(--muted);margin:0;font-size:14px;font-weight:900}.aks .saltbtn{border:2px solid var(--salt);background:color-mix(in oklab, var(--salt) 16%, var(--card));width:100%;max-width:26rem;color:color-mix(in oklab, var(--salt) 70%, var(--fg));text-align:center;font:inherit;cursor:pointer;border-radius:18px;margin-top:8px;padding:12px 16px;transition:transform .15s}.aks .saltbtn:hover{transform:translateY(-2px)}.aks .saltbtn[aria-pressed=true]{box-shadow:0 0 0 4px color-mix(in oklab, var(--accent) 40%, transparent)}.aks .saltbtn .cls{letter-spacing:.1em;text-transform:uppercase;opacity:.75;font-size:11px;font-weight:900;display:block}.aks .saltbtn .formula{font-size:26px;font-weight:900;display:block}.aks .saltbtn .name{font-size:14px;font-weight:700;display:block}.aks .saltout{background:var(--soft);border-radius:18px;margin-top:16px;padding:16px;font-size:14px;font-weight:600}.aks .saltout .eq{margin:0 0 6px;font-size:18px;font-weight:900;overflow-x:auto}.aks .rule{background:var(--note);color:var(--notefg);border-radius:14px;margin-top:14px;padding:12px 14px;font-size:14px;font-weight:700}.aks footer{color:var(--muted);margin-top:24px;font-size:13px;font-weight:600}.aks button:focus-visible{outline:3px solid var(--accent);outline-offset:2px}@media (prefers-reduced-motion:reduce){.aks *{transition:none!important}}