/* Research notebook: Badger Red and white, with a custom deep-blue accent. */
:root{color-scheme:light;--red:#c5050c;--red-dark:#9b0000;--blue:#17365d;--ink:#121212;--muted:#494949;--line:#e1e5e7;--paper:#fff;--serif:Georgia,'Times New Roman',serif;--sans:Arial,Helvetica,sans-serif;--mono:'SFMono-Regular',Consolas,'Liberation Mono',monospace}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:1.5rem}
body{margin:0;color:var(--ink);background:var(--paper);font:1rem/1.65 var(--sans)}
h1,h2,h3,p,figure{margin:0}
a{color:var(--red);text-decoration:none;text-underline-offset:.2em}
a:hover{color:var(--red-dark);text-decoration:underline}
button{font:inherit;cursor:pointer}
a,button{-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--blue);outline-offset:4px}
code{font:.9em var(--mono)}
.container{width:min(1120px,calc(100% - 80px));margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.skip-link{position:absolute;left:1rem;top:-8rem;z-index:10;padding:.6rem 1rem;color:var(--blue);background:white;border:2px solid var(--red)}
.skip-link:focus{top:.75rem}
.site-header{border-top:5px solid var(--red);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;min-height:87px}
.brand{display:flex;align-items:center;gap:1rem;color:var(--blue)}
.brand:hover{text-decoration:none;color:var(--blue)}
.brand-mark{font:bold 2.35rem/1 var(--serif);letter-spacing:-.12rem;color:var(--red)}
.brand-label{font-size:.95rem}
.header-inner nav{display:flex;align-items:center;flex-wrap:wrap;gap:1.8rem;font-size:.9rem}
.header-inner nav a{color:var(--blue)}
.header-inner nav a:hover{color:var(--red)}
.notebook-title{display:grid;grid-template-columns:1.1fr 1fr;gap:3rem;align-items:end;padding-block:2.5rem 2rem;border-bottom:1px solid var(--line)}
h1{font:400 clamp(2.3rem,4vw,3rem)/1.12 var(--serif);letter-spacing:-.06rem;color:var(--blue)}
.notebook-title p{max-width:430px;font-size:1.05rem;justify-self:end}
.notebook-grid{display:grid;grid-template-columns:1fr 1fr;align-items:start;gap:3rem;padding-block:2rem}
.eyebrow{color:var(--red);font-size:.8rem;line-height:1.5;letter-spacing:.08rem;text-transform:uppercase;font-weight:600;margin-bottom:.9rem}
h2{font:400 1.85rem/1.2 var(--serif);color:var(--blue)}
h3{color:var(--blue);font-size:1.05rem;font-weight:600;line-height:1.4}
.priority-figure h2{margin-bottom:.9rem}
.priority-figure>p{max-width:410px}
.timeline{display:block;width:100%;height:auto;margin-block:1rem .5rem}
.legend{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:.5rem 1.4rem;color:var(--muted);font-size:.8rem;margin-bottom:1.3rem}
.legend>span{display:flex;align-items:center;gap:.45rem}
.event-dot{width:10px;height:10px;border:2px solid var(--blue);border-radius:50%}
.end-tick{display:inline-block;height:12px;border-left:2px solid var(--blue);margin-inline:4px}
.pair-result{padding:.85rem 1rem;background:var(--line);border-left:3px solid var(--red);color:var(--blue)}
.pair-result strong{display:block;font-size:1rem;font-weight:600}
.pair-result div>span{display:block;font-size:.875rem;color:var(--muted);margin-top:.15rem}
figcaption{font-size:.8rem;color:var(--muted);line-height:1.65;margin-top:1rem}
.example-area{min-width:0}
.code-card{border:1px solid var(--line)}
.code-tabs{display:flex;flex-wrap:wrap;align-items:stretch;gap:1.6rem;padding-inline:1.2rem;background:var(--blue)}
.code-tabs button{background:transparent;color:#d9e2ef;border:0;border-bottom:3px solid transparent;padding:.7rem 0 .55rem;font-size:.9rem}
.code-tabs button:hover{color:white}
.code-tabs button[aria-selected='true']{color:white;border-bottom-color:white}
.code-tabs button:focus-visible{outline-color:white;outline-offset:-1px}
.code-toolbar{display:flex;align-items:center;justify-content:space-between;gap:.75rem;padding:.75rem 1.2rem 0;color:var(--muted);font-size:.8rem}
.code-copy,.copy-button{color:var(--blue);background:white;border:1px solid #aeb9c6;padding:.25rem .6rem;font-size:.8rem;border-radius:2px;white-space:nowrap}
.code-copy:hover,.copy-button:hover{border-color:var(--blue);background:var(--line)}
.code-panel pre{overflow-x:auto;margin:0;padding:1rem 1.2rem;color:var(--blue);font:.875rem/1.75 var(--mono);tab-size:2}
.code-panel code{font:inherit}
.syn-comment{color:var(--muted)}
.syn-function{color:var(--red)}
.syn-op,.syn-string{color:var(--blue)}
.example-caption{color:var(--muted);font-size:.875rem;line-height:1.65;margin-top:1rem}
.example-caption strong{color:var(--blue);font-weight:600}
.example-caption p{margin-top:.3rem}
.example-caption a{text-decoration:underline}
.method-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:2px solid var(--blue);border-bottom:1px solid var(--line)}
.method-card{display:flex;flex-direction:column;gap:.7rem;padding:1.4rem 1.5rem;border-right:1px solid var(--line)}
.method-card:first-child{padding-left:0}
.method-card:last-child{border:0;padding-right:0}
.method-card p{font-size:.95rem;color:var(--muted);line-height:1.6;flex-grow:1}
.function-tag{color:var(--red);font:.875rem/1.6 var(--mono)}
.function-tag span{color:var(--muted)}
.card-link{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;color:var(--blue);font-size:.875rem;margin-top:.2rem}
.card-link span{color:var(--red)}
.method-note{display:grid;grid-template-columns:auto 1fr;gap:1.5rem;margin-top:1.2rem;font-size:.875rem;color:var(--muted)}
.note-label{color:var(--blue);font-weight:600}
.method-note code{color:var(--red)}
.setup-section{display:grid;grid-template-columns:1fr 1fr;gap:3rem;padding-block:2.5rem;margin-top:2.5rem;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.setup-section h2{margin-bottom:1rem}
.setup-section p{margin-bottom:1.1rem}
.install-block{display:flex;justify-content:space-between;align-items:start;gap:1rem;border:1px solid var(--line);border-left:3px solid var(--red);padding:.9rem 1rem;line-height:1.8}
.install-block code{color:var(--blue);line-height:1.8;overflow-wrap:anywhere}
.setup-links{display:flex;flex-wrap:wrap;gap:.6rem 1.5rem;font-size:.875rem;margin-top:1rem}
.package-meta{display:flex;flex-wrap:wrap;gap:.5rem 1.3rem;color:var(--muted);font-size:.8rem;margin-top:.8rem}
.status-key{display:flex;flex-wrap:wrap;gap:1rem 1.5rem;margin:1rem 0 1.5rem}
.status-key>div{display:flex;gap:.5rem;align-items:baseline}
.status-key dt{color:var(--red);font:bold 1rem var(--mono)}
.status-key dd{color:var(--muted);margin:0;font-size:.875rem}
.text-link{font-size:.875rem}
#resources{padding-block:2.6rem}
.section-intro{display:flex;justify-content:space-between;align-items:end;gap:2rem;margin-bottom:1.6rem}
.section-intro>p{max-width:410px;color:var(--muted)}
.resources-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem}
.list-heading{border-bottom:1px solid var(--line);padding-bottom:.7rem}
.resource-row{display:flex;justify-content:space-between;align-items:center;gap:1.2rem;padding:1rem 0;border-bottom:1px solid var(--line)}
.resource-row strong{display:block;color:var(--blue);font-size:1rem;font-weight:500}
.resource-row small{display:block;color:var(--muted);font-size:.875rem;margin-top:.2rem}
.resource-row:hover strong{color:var(--red)}
.paper-row{display:block;border-bottom:1px solid var(--line);padding:.9rem 0}
.paper-journal{display:block;color:var(--red);font-size:.8rem;margin-bottom:.25rem}
.paper-row strong{display:block;color:var(--blue);font:400 1.2rem/1.45 var(--serif)}
.paper-row:hover strong{color:var(--red)}
.paper-authors{display:flex;justify-content:space-between;gap:1rem;color:var(--muted);font-size:.875rem;margin-top:.4rem}
.paper-authors>span{color:var(--red)}
.citation-bar{display:flex;align-items:center;justify-content:space-between;gap:2rem;padding:1.4rem 1.5rem;margin-top:2rem;background:var(--line);border-left:3px solid var(--red)}
.citation-bar h3{margin-bottom:.4rem}
.citation-bar p{font-size:.9rem;max-width:690px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:1rem;min-height:44px;padding:.65rem 1rem;border:1px solid var(--blue);color:var(--blue);font-size:.875rem;white-space:nowrap}
.button:hover{color:var(--red-dark);border-color:var(--red-dark)}
.site-footer{border-top:1px solid var(--line);padding-block:1.6rem}
.footer-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem 1.5rem}
.footer-brand{display:flex;gap:1rem;align-items:center;font:bold 1.7rem var(--serif)}
.footer-brand span{color:var(--blue);font:.875rem var(--sans)}
.footer-inner>p,.footer-inner>div{font-size:.8rem;color:var(--muted)}
.footer-inner>div{display:flex;gap:1rem;flex-wrap:wrap}
.footer-inner a:not(.footer-brand){color:var(--muted)}
.footer-inner a:hover{color:var(--red)}
.toast{position:fixed;z-index:20;bottom:1.5rem;left:50%;transform:translate(-50%,1rem);max-width:calc(100% - 2rem);padding:.7rem 1.2rem;color:white;background:var(--blue);font-size:.875rem;opacity:0;pointer-events:none;transition:opacity .18s,transform .18s;text-align:center}
.toast.visible{opacity:1;transform:translate(-50%,0)}
[hidden]{display:none!important}
@media(max-width:1000px){.container{width:calc(100% - 56px)}.notebook-title,.notebook-grid,.setup-section,.resources-grid{gap:2rem}.header-inner nav{gap:1.2rem}.brand-label{font-size:.875rem}.section-intro{display:block}.section-intro>p{margin-top:1rem;max-width:640px}.method-card{padding-inline:1rem}.timeline text{font-size:16px}}
@media(max-width:760px){.container{width:calc(100% - 40px)}.header-inner{flex-wrap:wrap;padding-block:1.2rem;gap:1rem 2rem}.header-inner nav{gap:1.5rem}.notebook-title{display:block;padding-block:2rem 1.5rem}.notebook-title p{margin-top:1.1rem;max-width:560px}.notebook-grid{grid-template-columns:1fr;padding-block:1.5rem}.priority-figure>p{max-width:none}.timeline{max-width:520px;margin-inline:auto}.timeline text{font-size:16px}.code-panel pre{font-size:.875rem}.method-grid{grid-template-columns:1fr}.method-card,.method-card:first-child,.method-card:last-child{padding:1.3rem 0;border-right:0;border-bottom:1px solid var(--line)}.method-card:last-child{border:0}.method-note{grid-template-columns:1fr;gap:.35rem}.setup-section{grid-template-columns:1fr;gap:2rem;margin-top:2rem;padding-block:2rem}.resources-grid{grid-template-columns:1fr;gap:2rem}.citation-bar{align-items:start;flex-direction:column;gap:1rem;padding:1.2rem}.footer-inner{align-items:start;flex-direction:column}}
@media(max-width:380px){.container{width:calc(100% - 32px)}.header-inner nav{gap:1rem}.brand{gap:.8rem}h1{font-size:2.25rem}.code-tabs{gap:1rem;padding-inline:.9rem}.code-toolbar{flex-wrap:wrap;padding-inline:.9rem}.code-panel pre{padding-inline:.9rem;font-size:.8125rem}.timeline text{font-size:18px}}
@media(pointer:coarse){.header-inner nav a,.code-tabs button,.copy-button,.code-copy,.setup-links a,.card-link{min-height:44px;display:inline-flex;align-items:center}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}