*,:before,:after{box-sizing:border-box}html,body{margin:0}[hidden]{display:none!important}:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#161c1f;--canvas:#1b2326;--surface:#222b2f;--surface2:#2b363b;--line:#36434a;--fg:#e3ebed;--muted:#8d9ea5;--accent:#34b59c;--accent-ink:#052019;--accent-soft:#34b59c29;--dep:#e8a84f;--cur:#f1d35e;--danger:#ef7272;--danger-soft:#ef727224;--wire:#9db2b8;--comp:#d7e2e5;--grid:#2c373b;--vpos:#3be27c;--vneg:#ff5a52;--vzero:#7d8c92;--sans:"IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--mono:"IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;--r:14px}html,body{height:100%}body{background:var(--bg);color:var(--fg);font-family:var(--sans);-webkit-tap-highlight-color:transparent;font-size:15px;overflow:hidden}button,input,select{font:inherit;color:inherit}button{cursor:pointer}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}#app{padding-top:env(safe-area-inset-top,0px);flex-direction:column;display:flex;position:fixed;top:0;bottom:0;left:0;right:0}.top{padding-block-start:6px;padding-block-end:6px;padding-left:max(10px, env(safe-area-inset-left,0px));padding-right:max(10px, env(safe-area-inset-right,0px));background:var(--surface);border-bottom:1px solid var(--line);align-items:center;gap:4px;display:flex}.brand{text-align:left;background:0 0;border:0;flex:1;align-items:center;gap:8px;min-width:0;padding:6px 4px;display:flex}.brand svg{flex:none}.brand .t{flex-direction:column;min-width:0;line-height:1.15;display:flex}.brand .t b{letter-spacing:.01em;font-size:16px;font-weight:600}.brand .t span{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.ib{width:42px;height:42px;color:var(--fg);background:0 0;border:0;border-radius:12px;flex:none;place-items:center;display:grid}.ib:hover{background:var(--surface2)}.ib:disabled{opacity:.35;cursor:default;background:0 0}.ib svg{width:22px;height:22px}.ib.on{background:var(--accent-soft);color:var(--accent)}.tools{padding-block-start:6px;padding-block-end:6px;padding-left:max(10px, env(safe-area-inset-left,0px));padding-right:max(10px, env(safe-area-inset-right,0px));background:var(--surface);border-bottom:1px solid var(--line);scrollbar-width:none;align-items:center;gap:6px;display:flex;overflow-x:auto}.tools::-webkit-scrollbar{display:none}.tool{min-width:54px;color:var(--fg);background:0 0;border:0;border-radius:12px;flex-direction:column;align-items:center;gap:2px;padding:6px;font-size:11.5px;display:flex}.tool svg{width:22px;height:22px}.tool:hover{background:var(--surface2)}.tool.on{background:var(--accent);color:var(--accent-ink)}.tool.toggle.on{background:var(--accent-soft);color:var(--accent)}.tool:disabled{opacity:.35;cursor:default;background:0 0}.sep{background:var(--line);flex:none;align-self:stretch;width:1px;margin:4px 2px}#stage{background:var(--canvas);flex:1;min-height:0;position:relative}#cv{touch-action:none;width:100%;height:100%;display:block;position:absolute;top:0;bottom:0;left:0;right:0}.banner{top:10px;left:max(10px, env(safe-area-inset-left,0px));right:max(10px, env(safe-area-inset-right,0px));background:var(--surface);border:1px solid var(--line);border-radius:12px;align-items:center;gap:10px;padding:10px 12px;font-size:13.5px;line-height:1.35;display:flex;position:absolute;box-shadow:0 6px 20px #0000004d}.banner .msg{flex:1;min-width:0}.banner.hint{border-color:var(--accent)}.banner.err{border-color:var(--danger);background:color-mix(in srgb, var(--surface) 88%, var(--danger))}.banner .dot{background:var(--accent);border-radius:50%;flex:none;width:8px;height:8px}.banner.err .dot{background:var(--danger)}.banner button{border:1px solid var(--line);background:var(--surface2);border-radius:9px;flex:none;padding:6px 10px;font-size:13px}.fab{right:max(16px, calc(env(safe-area-inset-right,0px) + 12px));bottom:calc(16px + max(var(--dock,0px), env(safe-area-inset-bottom,0px)));background:var(--accent);width:58px;height:58px;color:var(--accent-ink);border:0;border-radius:50%;place-items:center;transition:transform .15s;display:grid;position:absolute;box-shadow:0 8px 22px #0006}.fab svg{width:28px;height:28px}.fab:active{transform:scale(.94)}.mini{left:max(16px, calc(env(safe-area-inset-left,0px) + 12px));bottom:calc(22px + max(var(--dock,0px), env(safe-area-inset-bottom,0px)));border:1px solid var(--line);background:var(--surface);width:46px;height:46px;color:var(--fg);border-radius:50%;place-items:center;display:grid;position:absolute;box-shadow:0 6px 16px #00000059}.mini svg{width:22px;height:22px}.exlist{flex-direction:column;gap:8px;display:flex}.exlist button{text-align:left;border:1px solid var(--line);background:var(--surface2);border-radius:14px;flex-direction:column;gap:3px;padding:12px 14px;display:flex}.exlist button:hover{border-color:var(--accent)}.exlist b{font-size:15px;font-weight:600}.exlist span{color:var(--muted);font-size:13px;line-height:1.35}.card>*{flex-shrink:0}.card{background:var(--surface);border-top:1px solid var(--line);padding-block:12px calc(12px + env(safe-area-inset-bottom,0px));padding-left:max(16px, env(safe-area-inset-left,0px));padding-right:max(16px, env(safe-area-inset-right,0px));border-radius:18px 18px 0 0;flex-direction:column;gap:12px;max-height:62%;display:flex;position:absolute;bottom:0;left:0;right:0;overflow-y:auto;box-shadow:0 -10px 30px #00000059}.card-head{align-items:flex-start;gap:10px;display:flex}.card-head .ttl{flex:1;min-width:0}.card-head 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var(--line);background:var(--surface2);text-align:center;border-radius:14px;flex-direction:column;align-items:center;gap:6px;padding:12px 6px 10px;font-size:12.5px;line-height:1.2;display:flex}.pal button:hover{border-color:var(--accent)}.pal button small{color:var(--muted);font-size:11px;font-family:var(--mono)}.pal svg{width:56px;height:30px;color:var(--comp)}.pal .dep svg{color:var(--dep)}.field{flex-direction:column;gap:6px;display:flex}.field>label{color:var(--muted);font-size:12.5px}.inrow{background:var(--surface2);border:1px solid var(--line);border-radius:12px;align-items:center;display:flex;overflow:hidden}.inrow:focus-within{border-color:var(--accent)}.inrow input,.inrow select{min-width:0;font-size:17px;font-family:var(--mono);background:0 0;border:0;outline:none;flex:1;padding:12px}.inrow select{font-family:var(--sans);font-size:15px}.inrow .u{color:var(--muted);font-family:var(--mono);padding:0 12px}.inrow select.u{color:var(--fg);font-family:var(--mono);border-left:1px 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b{color:var(--accent);font-weight:600}.adv{color:var(--fg);flex-direction:column;gap:6px;margin:10px 0 0;padding-left:18px;font-size:13.5px;line-height:1.45;display:flex}.adv li::marker{color:var(--dep)}.tabs{background:var(--surface2);border-radius:11px;grid-template-columns:1fr 1fr;gap:4px;padding:3px;display:grid}.tabs button{color:var(--muted);background:0 0;border:0;border-radius:9px;padding:7px;font-size:13.5px;font-weight:500}.tabs button.on{background:var(--surface);color:var(--fg);box-shadow:0 1px 3px #0000004d}.eqbox{background:var(--surface2);border-radius:12px;flex-direction:column;gap:8px;padding:12px 14px;display:flex;overflow-x:auto}.eqh{text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin-top:4px;font-size:11px;font-weight:600}.eqh:first-child{margin-top:0}.eq{color:var(--fg);flex-wrap:wrap;align-items:center;gap:4px 6px;font-family:Cambria Math,STIX Two Math,Latin Modern Math,Times New Roman,serif;font-size:19px;line-height:1.2;display:flex}.eq.sm{font-size:16.5px}.eq.chk{font-family:var(--mono);color:var(--muted);font-size:14px}.eq .t{white-space:nowrap;display:inline-block}.eq .keep{white-space:nowrap;align-items:center;gap:6px;display:inline-flex}.eq .op{color:var(--muted);padding:0 1px;font-style:normal}.eq sub{vertical-align:-.3em;font-size:.68em}.eq sup{font-size:.68em}.eq .num,.eq .why{font-family:var(--mono);color:var(--muted);flex-basis:100%;font-size:12.5px}.eq .why{font-family:var(--sans)}.frac{vertical-align:middle;flex-direction:column;align-items:center;margin:0 2px;display:inline-flex}.frac>span{white-space:nowrap;padding:1px 5px}.frac>span:first-child{border-bottom:1.5px solid}.ok{color:var(--accent);font-weight:600}.bad{color:var(--danger);font-weight:600}.bal{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.toast{left:50%;bottom:calc(90px + env(safe-area-inset-bottom,0px));background:var(--fg);color:var(--bg);pointer-events:none;border-radius:99px;padding:9px 16px;font-size:14px;font-weight:500;position:fixed;transform:translate(-50%)}.tip{color:var(--fg);font-size:14px;line-height:1.5}.tip p{margin:0 0 8px}.tip b{color:var(--accent);font-weight:600}@media (max-width:380px){.metric output{font-size:15px}.tool{min-width:52px}.sim .metric{padding:7px}.sim .metric output{font-size:13px}.steps span{font-size:11px}}