:root{--c-paper:#edf1ec;--c-paper-raised:#f7f9f6;--c-paper-sunk:#e1e7e0;--c-rule:#c5cfc4;--c-ink:#18263a;--c-ink-soft:#3f4f63;--c-ink-faint:#5a6878;--c-accent:#1d4fb3;--c-on-accent:#fff;--c-bench:#1d2225;--c-bench-raised:#2a3034;--c-bench-ink:#e6ebe7;--c-bench-ink-soft:#aab5b1;--c-tile:#f3f5f4;--c-model:#1d5fa8;--c-measured:#b04a0c;--c-reference:#7b3fa0;--c-success:#2a6e45;--c-hazard:#c8161d;--d-ramp-0:#cde2fb;--d-ramp-1:#86b6ef;--d-ramp-2:#5598e7;--d-ramp-3:#256abf;--d-ramp-4:#184f95;--d-ramp-5:#0d366b;--d-ramp-ink-0:#18263a;--d-ramp-ink-1:#18263a;--d-ramp-ink-2:#18263a;--d-ramp-ink-3:#fff;--d-ramp-ink-4:#fff;--d-ramp-ink-5:#fff;--d-block-s:#9cc1f1;--d-block-p:#fed397;--d-block-d:#cef6e1;--d-block-f:#e2a2b8;--d-block-ink:#18263a;--f-ui:"Atkinson Hyperlegible Next Variable", system-ui, sans-serif;--f-text:"Source Serif 4 Variable", Georgia, serif;--f-readout:"Atkinson Hyperlegible Mono Variable", ui-monospace, monospace;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--c-paper:#161b1d;--c-paper-raised:#1e2427;--c-paper-sunk:#111517;--c-rule:#34403f;--c-ink:#e3e9e4;--c-ink-soft:#b9c4c0;--c-ink-faint:#97a4a1;--c-accent:#8fb3ff;--c-on-accent:#0d1a33;--c-bench:#0e1112;--c-bench-raised:#1b2023;--c-bench-ink:#e6ebe7;--c-bench-ink-soft:#aab5b1;--c-tile:#e9edeb;--c-model:#4f8fdb;--c-measured:#c97830;--c-reference:#a572d0;--c-success:#7fcf9c;--c-hazard:#ff7070;--d-ramp-0:#104281;--d-ramp-1:#1c5cab;--d-ramp-2:#3987e5;--d-ramp-3:#6da7ec;--d-ramp-4:#9ec5f4;--d-ramp-5:#cde2fb;--d-ramp-ink-0:#e3e9e4;--d-ramp-ink-1:#e3e9e4;--d-ramp-ink-2:#161b1d;--d-ramp-ink-3:#161b1d;--d-ramp-ink-4:#161b1d;--d-ramp-ink-5:#161b1d;--d-block-s:#1e4371;--d-block-p:#522f00;--d-block-d:#072b1c;--d-block-f:#73364d;--d-block-ink:#e3e9e4;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}:root[data-theme=dark]{--c-paper:#161b1d;--c-paper-raised:#1e2427;--c-paper-sunk:#111517;--c-rule:#34403f;--c-ink:#e3e9e4;--c-ink-soft:#b9c4c0;--c-ink-faint:#97a4a1;--c-accent:#8fb3ff;--c-on-accent:#0d1a33;--c-bench:#0e1112;--c-bench-raised:#1b2023;--c-bench-ink:#e6ebe7;--c-bench-ink-soft:#aab5b1;--c-tile:#e9edeb;--c-model:#4f8fdb;--c-measured:#c97830;--c-reference:#a572d0;--c-success:#7fcf9c;--c-hazard:#ff7070;--d-ramp-0:#104281;--d-ramp-1:#1c5cab;--d-ramp-2:#3987e5;--d-ramp-3:#6da7ec;--d-ramp-4:#9ec5f4;--d-ramp-5:#cde2fb;--d-ramp-ink-0:#e3e9e4;--d-ramp-ink-1:#e3e9e4;--d-ramp-ink-2:#161b1d;--d-ramp-ink-3:#161b1d;--d-ramp-ink-4:#161b1d;--d-ramp-ink-5:#161b1d;--d-block-s:#1e4371;--d-block-p:#522f00;--d-block-d:#072b1c;--d-block-f:#73364d;--d-block-ink:#e3e9e4;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}@font-face{font-family:Atkinson Hyperlegible Next Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/atkinson-hyperlegible-next-latin-ext-wght-normal-C6vrW8VD.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Atkinson Hyperlegible Next Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/atkinson-hyperlegible-next-latin-wght-normal-BcXVPD7q.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Atkinson Hyperlegible Mono Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/atkinson-hyperlegible-mono-latin-ext-wght-normal-CXgNM06D.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Atkinson Hyperlegible Mono Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/atkinson-hyperlegible-mono-latin-wght-normal-CoA7y8X5.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/assets/source-serif-4-cyrillic-ext-opsz-normal-DIwfbPUE.woff2)format("woff2-variations");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/assets/source-serif-4-cyrillic-opsz-normal-C0olyEE-.woff2)format("woff2-variations");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/assets/source-serif-4-greek-opsz-normal-DrHU7SY7.woff2)format("woff2-variations");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/assets/source-serif-4-vietnamese-opsz-normal-DX68cEVD.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/assets/source-serif-4-latin-ext-opsz-normal-HoL-AExg.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/assets/source-serif-4-latin-opsz-normal-BpEBLj1O.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:"Source Serif 4 Variable";font-style:italic;font-display:swap;font-weight:200 900;src:url(/assets/source-serif-4-cyrillic-ext-opsz-italic-Bl6DJqma.woff2)format("woff2-variations");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:"Source Serif 4 Variable";font-style:italic;font-display:swap;font-weight:200 900;src:url(/assets/source-serif-4-cyrillic-opsz-italic-Dibx14aP.woff2)format("woff2-variations");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:"Source Serif 4 Variable";font-style:italic;font-display:swap;font-weight:200 900;src:url(/assets/source-serif-4-greek-opsz-italic-CMW9dfKg.woff2)format("woff2-variations");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:"Source Serif 4 Variable";font-style:italic;font-display:swap;font-weight:200 900;src:url(/assets/source-serif-4-vietnamese-opsz-italic-Hh3oeMt5.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:"Source Serif 4 Variable";font-style:italic;font-display:swap;font-weight:200 900;src:url(/assets/source-serif-4-latin-ext-opsz-italic-BhUEwDRF.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:"Source Serif 4 Variable";font-style:italic;font-display:swap;font-weight:200 900;src:url(/assets/source-serif-4-latin-opsz-italic-BOLXpvkj.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%}body{background:var(--c-paper);color:var(--c-ink);font-family:var(--f-ui);font-variant-numeric:lining-nums;background-image:linear-gradient(var(--c-paper-sunk) 1px, transparent 1px), linear-gradient(90deg, var(--c-paper-sunk) 1px, transparent 1px);background-position:-1px -1px;background-size:24px 24px;margin:0;font-size:1rem;line-height:1.5}a{color:var(--c-accent);text-underline-offset:.18em;text-decoration-thickness:1px}a:hover{text-decoration-thickness:2px}:focus-visible{outline:3px solid var(--c-accent);outline-offset:2px;border-radius:2px}h1,h2,h3,h4{font-family:var(--f-ui);letter-spacing:-.01em;text-wrap:balance;margin:0 0 .5em;font-weight:700;line-height:1.15}h1{letter-spacing:-.02em;font-size:clamp(2rem,1.4rem + 2.6vw,3.25rem)}h2{font-size:clamp(1.4rem,1.15rem + 1vw,1.9rem)}h3{font-size:1.2rem}p{margin:0 0 1em}.prose{font-family:var(--f-text);max-width:68ch;font-size:1.0625rem;line-height:1.65}.prose p,.prose li{text-wrap:pretty}.prose h2,.prose h3{margin-top:1.6em}.visually-hidden{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;overflow:hidden;position:absolute!important}.skip-link{background:var(--c-accent);color:var(--c-on-accent);z-index:100;border-radius:4px;padding:.5rem .9rem;position:absolute;top:-3rem;left:1rem}.skip-link:focus{top:.5rem}.topbar{z-index:20;padding:.55rem max(1rem, env(safe-area-inset-left));background:color-mix(in srgb, var(--c-paper) 92%, transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--c-rule);align-items:center;gap:1rem;display:flex;position:sticky;top:0}.brand{color:var(--c-ink);white-space:nowrap;align-items:center;gap:.55rem;font-size:1.05rem;font-weight:700;text-decoration:none;display:flex}.brand img{width:28px;height:28px}.topnav{flex-wrap:wrap;gap:.25rem;margin-left:auto;display:flex}.topnav a,.topnav button{color:var(--c-ink-soft);font:inherit;cursor:pointer;background:0 0;border:0;border-radius:4px;align-items:center;min-height:40px;padding:.4rem .65rem;font-size:.95rem;text-decoration:none;display:inline-flex}.topnav a:hover,.topnav button:hover{background:var(--c-paper-sunk);color:var(--c-ink)}@media (width<=640px){.topbar{flex-wrap:wrap;row-gap:.1rem;padding-bottom:.2rem}.topnav{gap:0;width:100%;margin-left:0}.topnav a{min-height:40px;padding:.3rem .4rem;font-size:.875rem}}.topnav a[aria-current=page]{color:var(--c-ink);box-shadow:inset 0 -2px 0 var(--c-accent);border-radius:0}main{padding:0 max(1rem, env(safe-area-inset-left)) 4rem;display:block}.page{max-width:1240px;margin:0 auto}.footer{border-top:1px solid var(--c-rule);color:var(--c-ink-faint);padding:1.5rem 1rem 2.5rem;font-size:.9rem}.footer .page{flex-wrap:wrap;justify-content:space-between;gap:1.5rem;display:flex}button,input,select,textarea{font:inherit;color:inherit}.btn{border:1px solid var(--c-rule);background:var(--c-paper-raised);min-height:44px;color:var(--c-ink);cursor:pointer;touch-action:manipulation;border-radius:6px;justify-content:center;align-items:center;gap:.4rem;padding:.45rem 1rem;font-weight:600;text-decoration:none;display:inline-flex}.btn:hover{border-color:var(--c-ink-faint)}.btn-primary{background:var(--c-accent);border-color:var(--c-accent);color:var(--c-on-accent)}.btn-primary:hover{filter:brightness(1.08);border-color:var(--c-accent)}.btn[disabled]{opacity:.5;cursor:not-allowed}.btn-small{min-height:36px;padding:.25rem .7rem;font-size:.9rem}.field{gap:.25rem;display:grid}.field-label{color:var(--c-ink-soft);justify-content:space-between;gap:.75rem;font-size:.92rem;display:flex}.field-value{color:var(--c-ink);font-variant-numeric:tabular-nums;font-weight:600}input[type=range]{width:100%;accent-color:var(--c-accent);touch-action:pan-y;min-height:32px}input[type=number],input[type=text],input[type=search],select,textarea{background:var(--c-paper-raised);border:1px solid var(--c-rule);border-radius:4px;min-height:40px;padding:.4rem .55rem}textarea{resize:vertical;width:100%;min-height:6rem}.segmented{border:1px solid var(--c-rule);background:var(--c-paper-raised);border-radius:6px;flex-wrap:wrap;display:inline-flex;overflow:hidden}.segmented button{cursor:pointer;min-height:40px;color:var(--c-ink-soft);touch-action:manipulation;background:0 0;border:0;padding:.4rem .8rem}.segmented button+button{border-left:1px solid var(--c-rule)}.segmented button[aria-pressed=true]{background:var(--c-accent);color:var(--c-on-accent)}.readouts{grid-template-columns:repeat(auto-fill,minmax(9.5rem,1fr));gap:.5rem;display:grid}.readout{background:var(--c-bench);color:var(--c-bench-ink);border-radius:6px;gap:.1rem;padding:.45rem .7rem .5rem;display:grid}.readout-label{color:var(--c-bench-ink-soft);font-size:.8rem}.readout-value{font-family:var(--f-readout);font-variant-numeric:tabular-nums;font-size:1.35rem;line-height:1.2}.readout-unit{color:var(--c-bench-ink-soft);margin-left:.25rem;font-size:.85rem}.formula{font-family:var(--f-ui);position:relative}.formula-part{white-space:nowrap}.formula sub,.formula sup{font-size:.7em;line-height:0}.formula sub{vertical-align:-.25em}.formula sup{vertical-align:.55em}.cite{font-family:var(--f-ui);vertical-align:.5em;white-space:nowrap;margin-left:.1em;font-size:.72em;line-height:0;text-decoration:none}.cite:before{content:"["}.cite:after{content:"]"}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}@media print{body{color:#000;background:#fff}.topbar,.footer,.no-print{display:none!important}}.panel{background:var(--c-paper-raised);border:1px solid var(--c-rule);border-radius:8px;padding:1rem 1.1rem 1.1rem}.panel+.panel{margin-top:1rem}.panel-title{justify-content:space-between;align-items:baseline;gap:.5rem;margin:0 0 .75rem;font-size:1rem;display:flex}.controls-panel{grid-template-columns:minmax(0,1fr);gap:.9rem;display:grid}.controls-panel select{width:100%;min-width:0}.controls-panel .panel-title{margin-bottom:0}.field-hint{color:var(--c-ink-faint);font-size:.85rem}.button-row{flex-wrap:wrap;gap:.5rem;display:flex}.save-status:empty{display:none}.save-status{color:var(--c-ink-soft);margin:0;font-size:.9rem}.toggle{cursor:pointer;align-items:center;gap:.5rem;min-height:36px;display:flex}.toggle input{width:1.15rem;height:1.15rem;accent-color:var(--c-accent)}.link-button{color:var(--c-accent);text-underline-offset:.18em;cursor:pointer;background:0 0;border:0;padding:.25rem 0;font-size:.9rem;text-decoration:underline}.experiment-head{padding:1.75rem 0 1rem}.crumbs{color:var(--c-ink-faint);margin-bottom:.4rem;font-size:.92rem}.crumbs a{color:var(--c-ink-soft)}.aim{font-family:var(--f-text);max-width:60ch;color:var(--c-ink-soft);margin-bottom:.6rem;font-size:1.2rem;line-height:1.5}.equation{margin:0;padding-bottom:.2rem;font-size:clamp(1.05rem,.9rem + .8vw,1.4rem);overflow-x:auto}.tabs{border-bottom:1px solid var(--c-rule);scrollbar-width:none;gap:.25rem;margin-bottom:1.25rem;display:flex;position:relative;overflow-x:auto}.tabs button{min-height:44px;color:var(--c-ink-soft);cursor:pointer;white-space:nowrap;background:0 0;border:0;border-bottom:3px solid #0000;padding:.6rem .9rem .5rem;font-weight:600}.tabs button[aria-selected=true]{color:var(--c-ink);border-bottom-color:var(--c-accent)}.tabs button:hover{color:var(--c-ink)}@media (width<=30rem){.tabs{gap:0}.tabs button{padding-inline:.5rem}}.explore-grid{grid-template-columns:minmax(0,1fr) minmax(280px,340px);align-items:start;gap:1.25rem;display:grid}.explore-main{gap:1rem;min-width:0;display:grid}.explore-side{flex-direction:column;max-height:calc(100vh - 5rem);display:flex;position:sticky;top:4.25rem}.explore-side>.panel{scrollbar-width:thin;min-height:0;overflow-y:auto}.explore-side>.controls-panel{flex:0 auto;min-height:min(16rem,45vh)}.explore-side>.panel:not(.controls-panel){flex:none;max-height:calc(45vh - 2.25rem)}@media (width<=900px){.explore-grid{grid-template-columns:minmax(0,1fr)}.explore-side{max-height:none;display:block;position:static}.explore-side>.panel,.explore-side>.controls-panel,.explore-side>.panel:not(.controls-panel){min-height:0;max-height:none;overflow:visible}}.stage{background:var(--c-bench);color:var(--c-bench-ink);border-radius:10px;position:relative;overflow:hidden}.stage svg,.stage canvas{width:100%;height:auto;max-height:min(64vh,560px);margin:0 auto;display:block}.stage-caption{color:var(--c-bench-ink-soft);pointer-events:none;margin:0;font-size:.8rem;position:absolute;bottom:.6rem;left:.75rem}.stage-heading{color:var(--c-bench-ink);pointer-events:none;margin:0;font-size:.85rem;position:absolute;top:.6rem;left:.75rem}.stage-key{color:var(--c-bench-ink-soft);flex-wrap:wrap;gap:.4rem 1.25rem;padding:.5rem .75rem .65rem;font-size:.8rem;display:flex}.stage-key-item{align-items:center;gap:.4rem;display:inline-flex}.stage-key-ramp{border-radius:3px;display:inline-flex;overflow:hidden}.stage-key-ramp span{width:12px;height:12px}.stage-key-dot{border-radius:50%;width:12px;height:12px}.explain{margin-top:1.75rem}.explain h2{font-family:var(--f-ui);font-size:1.25rem}.goals ul{gap:.75rem;margin:0;padding:0;list-style:none;display:grid}.goal{grid-template-columns:1.6rem 1fr;align-items:start;gap:.5rem;display:grid}.goal-mark{border:2px solid var(--c-ink-faint);border-radius:50%;place-items:center;width:1.4rem;height:1.4rem;margin-top:.1rem;font-size:.85rem;font-weight:700;display:grid}.goal-done .goal-mark{background:var(--c-success);border-color:var(--c-success);color:var(--c-paper-raised)}.goal-text{margin:0;font-size:.95rem}.goal-insight{color:var(--c-ink-soft);font-size:.9rem;font-family:var(--f-text);margin:.35rem 0 0}.goals-count{color:var(--c-ink-faint);font-size:.85rem;font-weight:400}.questions{max-width:68ch;margin-top:2rem}.question{border:1px solid var(--c-rule);background:var(--c-paper-raised);border-radius:8px;margin:0 0 1rem;padding:.9rem 1rem 1rem}.question legend{margin-left:-.3rem;padding:0 .3rem;font-weight:600}.choice{cursor:pointer;align-items:flex-start;gap:.6rem;padding:.35rem 0;display:flex}.choice input{accent-color:var(--c-accent);margin-top:.3rem}.choice-answer span{font-weight:600}.feedback{border-left:3px solid var(--c-ink-faint);background:var(--c-paper-sunk);font-family:var(--f-text);margin-top:.5rem;padding:.6rem .75rem}.feedback-right{border-left-color:var(--c-success)}.question-solved{color:var(--c-success);margin:.5rem 0 0;font-size:.9rem}.pager{border-top:1px solid var(--c-rule);flex-wrap:wrap;justify-content:space-between;gap:1rem;margin-top:3rem;padding-top:1rem;display:flex}.pager a{gap:.1rem;max-width:48%;text-decoration:none;display:grid}.pager-next{text-align:right;margin-left:auto}.pager-dir{color:var(--c-ink-faint);font-size:.85rem}.chart{background:var(--c-paper-raised);border:1px solid var(--c-rule);border-radius:8px;margin:0;padding:.7rem .7rem .4rem;position:relative}.chart svg{max-width:100%;display:block;overflow:visible}.chart-head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:.25rem 1rem;margin-bottom:.3rem;display:flex}.chart-title{font-size:.95rem;font-weight:700}.chart-legend{color:var(--c-ink-soft);flex-wrap:wrap;gap:.25rem .9rem;font-size:.85rem;display:flex}.chart-key{align-items:center;gap:.35rem;display:inline-flex}.chart-grid line{stroke:var(--c-rule);stroke-width:1px;opacity:.6}.chart-axis line{stroke:var(--c-ink-soft);stroke-width:1px}.chart-axis text{fill:var(--c-ink-soft);font-variant-numeric:tabular-nums;font-size:12px}.chart-axis .chart-axis-title{fill:var(--c-ink);font-size:13px}.chart-band-label,.chart-marker text{fill:var(--c-ink-soft);font-size:11px}.chart-note{fill:var(--c-ink-soft);font-size:12px}.chart-cursor line{stroke:var(--c-accent);stroke-width:1.5px;stroke-dasharray:6 3}.chart-cursor text{fill:var(--c-accent);font-size:11px;font-weight:600}.chart-crosshair line{stroke:var(--c-ink-faint);stroke-width:1px;stroke-dasharray:2 3}.chart-tip{background:var(--c-paper-raised);border:1px solid var(--c-rule);min-width:140px;max-width:190px;box-shadow:0 2px 10px color-mix(in srgb, var(--c-ink) 15%, transparent);pointer-events:none;z-index:2;border-radius:6px;padding:.35rem .5rem;font-size:.8rem;position:absolute}.chart-tip-x{color:var(--c-ink-soft);margin-bottom:.15rem}.chart-tip-row{align-items:center;gap:.35rem;display:flex}.chart-tip-swatch{border-radius:2px;flex:none;width:.7rem;height:.7rem}.chart-foot{color:var(--c-ink-faint);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;font-size:.85rem;display:flex}.chart-table-wrap{gap:1rem;max-height:320px;margin-top:.4rem;display:flex;position:relative;overflow-x:auto}.data-table{border-collapse:collapse;font-variant-numeric:tabular-nums;font-size:.9rem}.data-table caption{text-align:left;padding-bottom:.25rem;font-weight:600}.data-table th,.data-table td{border-bottom:1px solid var(--c-rule);text-align:right;padding:.25rem .6rem}.data-table th{color:var(--c-ink-soft);font-weight:600}.data-table .text-col,.data-table th:first-child,.data-table td:first-child{text-align:left}.cite-wrap{position:relative}.cite{color:var(--c-accent);cursor:pointer;padding:0 .1em}.cite:hover{text-decoration:underline}.cite-pop{z-index:10;background:var(--c-paper-raised);border:1px solid var(--c-rule);width:min(26rem,80vw);font-family:var(--f-ui);box-shadow:0 4px 18px color-mix(in srgb, var(--c-ink) 18%, transparent);overflow-wrap:anywhere;border-radius:6px;padding:.6rem .75rem;font-size:.85rem;line-height:1.45;display:block;position:absolute;top:1.4em;left:-.5rem}.cite-close{margin-top:.3rem;display:block}.references{max-width:72ch;padding-left:1.5rem}.references li{overflow-wrap:anywhere;margin-bottom:.85rem;line-height:1.5}.references li:focus{outline:2px solid var(--c-accent);outline-offset:4px}.ref-title{font-style:normal}.ref-access,.ref-verified summary{color:var(--c-ink-faint);font-size:.88rem}.ref-verified summary{cursor:pointer;min-height:24px;padding:.2rem 0}.ref-verified p{color:var(--c-ink-soft);margin:.3rem 0 0;font-size:.9rem}.notice,.loading{padding:3rem 0}.callout{border-left:3px solid var(--c-ink-faint);background:var(--c-paper-raised);border-radius:0 6px 6px 0;margin:1rem 0;padding:.7rem .9rem}.callout-hazard{border-left-color:var(--c-hazard)}.callout>:last-child{margin-bottom:0}.update-notice{z-index:50;background:var(--c-paper-raised);border:1px solid var(--c-rule);max-width:22rem;box-shadow:0 6px 24px color-mix(in srgb, var(--c-ink) 20%, transparent);border-radius:8px;padding:.8rem .9rem;position:fixed;bottom:1rem;right:1rem}.update-notice p{margin:0 0 .6rem;font-size:.92rem}.scroll-table,.data-entry,.chart-table-wrap{contain:inline-size;position:relative}.scroll-table{max-width:100%;margin:.5rem 0 1rem;overflow-x:auto}.hero{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);align-items:center;gap:2rem;padding:2.5rem 0 2rem;display:grid}.hero h1{letter-spacing:-.035em;margin-bottom:1rem;font-size:clamp(2.6rem,1.6rem + 4vw,4.6rem);line-height:.95}.hero-lede{font-family:var(--f-text);max-width:34em;color:var(--c-ink);font-size:clamp(1.1rem,1rem + .4vw,1.3rem);line-height:1.55}.hero-meta{color:var(--c-ink-soft);font-size:.95rem}.hero-figure{padding:1.25rem 1.25rem .75rem}.rack{margin:0}.rack figcaption{color:var(--c-bench-ink-soft);margin-top:.4rem;font-size:.85rem;line-height:1.45}@media (width<=860px){.hero{grid-template-columns:minmax(0,1fr);padding-top:1.5rem}}.levels>h2{border-bottom:2px solid var(--c-ink);margin-top:1.5rem;padding-bottom:.4rem}.level-block{margin:1.75rem 0 2.25rem}.level-head h3{margin-bottom:.2rem;font-size:1.35rem}.level-head h3 a{color:var(--c-ink);text-decoration:none}.level-head h3 a:hover{text-decoration:underline}.level-audience{color:var(--c-ink-faint);margin:0 0 .25rem;font-size:.92rem}.level-summary{font-family:var(--f-text);color:var(--c-ink-soft);max-width:60ch;margin-bottom:.75rem}.exp-list{border-top:1px solid var(--c-rule);margin:0;padding:0;list-style:none}.exp-item{border-bottom:1px solid var(--c-rule)}.exp-link{color:var(--c-ink);grid-template-columns:3.4rem minmax(0,1fr) auto;align-items:baseline;gap:.25rem 1rem;padding:.9rem .5rem;text-decoration:none;display:grid}.exp-link:hover{background:var(--c-paper-raised)}.exp-number{color:var(--c-ink-soft);font-variant-numeric:tabular-nums;font-size:1.1rem;font-weight:700}.exp-main{gap:.15rem;display:grid}.exp-title{font-size:1.12rem;font-weight:700}.exp-aim{font-family:var(--f-text);color:var(--c-ink-soft)}.exp-eq{color:var(--c-ink-soft);font-size:.95rem;overflow-x:auto}.exp-meta{color:var(--c-ink-faint);white-space:nowrap;justify-items:end;gap:.1rem;font-size:.85rem;display:grid}.exp-status-started{color:var(--c-success);font-weight:600}@media (width<=600px){.exp-link{grid-template-columns:2.6rem minmax(0,1fr)}.exp-meta{flex-wrap:wrap;grid-column:2;justify-items:start;gap:.8rem;display:flex}}.more-controls summary{cursor:pointer;color:var(--c-ink-soft);padding:.5rem 0;font-size:.92rem}.more-controls summary:hover{color:var(--c-ink)}.more-controls[open]{gap:.75rem;display:grid}.math{font-family:var(--f-ui);background:var(--c-paper-raised);border-left:3px solid var(--c-rule);max-width:100%;padding:.5rem .9rem;font-size:1.05rem;overflow-x:auto}select{max-width:100%}.species{padding:.8rem 1rem}.species .panel-title{margin-bottom:.5rem}.species-bar{background:var(--c-paper-raised);border-radius:4px;gap:2px;height:14px;display:flex;overflow:hidden}.species-seg{min-width:0;transition:flex-grow .15s linear}.species-list{font-variant-numeric:tabular-nums;flex-wrap:wrap;gap:.3rem 1.1rem;margin:.5rem 0 0;padding:0;font-size:.92rem;list-style:none;display:flex}.species-swatch{vertical-align:-.05em;border-radius:2px;width:.75rem;height:.75rem;margin-right:.3rem;display:inline-block}.species-0{background:color-mix(in srgb, var(--c-model) 100%, var(--c-paper-raised))}.species-1{background:color-mix(in srgb, var(--c-model) 62%, var(--c-paper-raised))}.species-2{background:color-mix(in srgb, var(--c-model) 38%, var(--c-paper-raised))}.species-3{background:color-mix(in srgb, var(--c-model) 20%, var(--c-paper-raised))}.bench-section{margin:0 0 2.25rem}.bench-section>h2{border-bottom:1px solid var(--c-rule);padding-bottom:.3rem;font-size:1.3rem}.two-col{grid-template-columns:repeat(auto-fit,minmax(min(100%,22rem),1fr));gap:1rem 2rem;max-width:none;display:grid}.two-col h3{font-family:var(--f-ui);margin-top:.5rem}.source-line{color:var(--c-ink-soft);font-size:.92rem}.bench-settings{grid-template-columns:repeat(auto-fill,minmax(min(100%,14rem),1fr));align-items:start;gap:.9rem 1.25rem;margin-bottom:1rem;display:grid}.bench-settings .field:first-child:has(>.segmented,>select){grid-column:1/-1}.data-entry{max-width:100%;position:relative;overflow-x:auto}.data-entry-table input{text-align:right;font-variant-numeric:tabular-nums;width:7.5rem;min-height:40px}.data-entry-table input[aria-invalid=true]{border-color:var(--c-hazard);outline:2px solid var(--c-hazard)}.data-entry-table th[scope=row]{color:var(--c-ink-soft);white-space:nowrap;font-weight:600}.unit{font-weight:400}.results p{margin-bottom:.6rem}.hazard-list{grid-template-columns:repeat(auto-fill,minmax(min(100%,24rem),1fr));gap:.8rem;display:grid}.hazard{background:var(--c-paper-raised);border:1px solid var(--c-rule);border-radius:8px;padding:.7rem .9rem}.hazard h4{margin:0 0 .4rem;font-size:1rem}.hazard-formula{color:var(--c-ink-soft);font-weight:400}.hazard-body{grid-template-columns:auto minmax(0,1fr);align-items:start;gap:.75rem;display:grid}.hazard-pictos{flex-wrap:wrap;gap:2px;max-width:88px;display:flex}.hazard-none{color:var(--c-ink-faint);width:60px;font-size:.8rem}.hazard-class{margin:0 0 .3rem}.hazard-basis{color:var(--c-ink-faint);font-size:.85rem}.hazard-statements,.hazard-dilute{margin:.2rem 0;padding-left:1.1rem;font-size:.9rem}.hazard-dilute{color:var(--c-ink-soft)}.hcode{font-variant-numeric:tabular-nums;font-weight:700}.hazard-advice{color:var(--c-ink-soft);margin:.3rem 0 0;font-size:.9rem}@media print{.tabs,.pager,[role=tabpanel][hidden]{display:none!important}}.backup{max-width:72ch;margin-bottom:1.5rem}.backup p{font-family:var(--f-text)}.notebook-filter{max-width:24rem;margin-bottom:1rem}.entries{gap:1.25rem;display:grid}.entry{background:var(--c-paper-raised);border:1px solid var(--c-rule);border-radius:8px;gap:.75rem;padding:1rem 1.1rem;display:grid}.entry-focused{border-color:var(--c-accent);box-shadow:0 0 0 2px var(--c-accent)}.entry-head h2{margin:0 0 .25rem;font-size:1.15rem}.entry-meta{color:var(--c-ink-soft);margin:0;font-size:.9rem}.entry-note{color:var(--c-ink-faint)}.badge{border:1px solid var(--c-rule);color:var(--c-ink-soft);border-radius:999px;padding:.05rem .45rem;font-size:.8rem;font-weight:600;display:inline-block}.badge-bench{border-color:var(--c-measured);color:var(--c-ink)}.kv th{text-align:left;color:var(--c-ink-soft);font-weight:400}.kv td{text-align:left}.btn-danger{border-color:var(--c-hazard);color:var(--c-hazard)}.empty{padding:1rem 0}.validation th[scope=row]{text-align:left;max-width:28rem;font-weight:400}.validation .pass{color:var(--c-success);font-weight:700}.validation .fail{color:var(--c-hazard);font-weight:700}.tool-group{margin-top:1.5rem}.tool-group h2{margin-bottom:.5rem;font-size:1.15rem}.tool-list{grid-template-columns:repeat(auto-fill,minmax(min(100%,22rem),1fr));gap:.75rem;margin:0;padding:0;list-style:none;display:grid}.tool-list li{background:var(--c-paper-raised);border:1px solid var(--c-rule);border-radius:8px;align-content:start;gap:.25rem;padding:.8rem 1rem;display:grid}.tool-list a{font-weight:700}.tool-list span{color:var(--c-ink-soft);font-size:.95rem}.tool{max-width:48rem}.tool-sources{max-width:48rem;margin-top:2rem}.tool .panel-title{font-size:1.15rem}.tool-intro{font-family:var(--f-text);color:var(--c-ink-soft);margin-bottom:.9rem}.tool-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,11rem),1fr));gap:.75rem 1rem;margin:.75rem 0;display:grid}.tool-answer{background:var(--c-paper-sunk);border-radius:6px;padding:.6rem .8rem;font-size:1.05rem}.tool-error{color:var(--c-hazard);font-weight:600}.tool input[type=text]{font-family:var(--f-ui);font-size:1.05rem}.tool-grid{align-items:start}.tool-grid select{width:100%;min-width:0}.tool-grid>.field{min-width:0}.tool-grid select{max-width:100%}.tool-set{border:1px solid var(--c-rule);border-radius:6px;min-width:0;margin:.6rem 0;padding:.3rem .8rem .1rem}.tool-set legend{padding:0 .3rem;font-weight:600}.tool-wide{grid-column:1/-1}.tool-answer-line{display:block}.tool-answer-line+.tool-answer-line{margin-top:.35rem}.tool-working{font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.tool textarea{font-family:var(--f-ui);font-variant-numeric:tabular-nums}
