:root{
  color-scheme:light dark;
  --paper:#F6F5F8;--paper:color(display-p3 .964 .961 .972);
  --sheet:#FDFCFB;--sheet:color(display-p3 .992 .988 .982);
  --ink:#0E0E0F;--ink:color(display-p3 .055 .054 .060);
  --muted:#5F6169;--muted:color(display-p3 .37 .38 .41);
  --line:color-mix(in srgb,var(--ink) 14%,transparent);
  --line-strong:color-mix(in srgb,var(--ink) 28%,transparent);
  --signal:#F34325;--signal:color(display-p3 .88 .32 .21);
  --signal-soft:#FBE7ED;--signal-soft:color(display-p3 .985 .905 .93);
  --signal-ink:#741b0d;
  --chip:color-mix(in srgb,var(--ink) 5%,var(--paper));
  --warning:#8B4300;
  --display:ui-serif,"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;
  --body:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono",monospace;
  --measure:69ch;--wide:1600px;--core:1200px;
  --shadow:0 1px 0 color-mix(in srgb,var(--ink) 5%,transparent),0 20px 55px color-mix(in srgb,var(--ink) 7%,transparent);
  --ease:cubic-bezier(.2,.8,.2,1);
}
@media(prefers-color-scheme:dark){:root{
  --paper:#0B0C0E;--paper:color(display-p3 .044 .047 .054);
  --sheet:#151619;--sheet:color(display-p3 .083 .085 .097);
  --ink:#F1F0ED;--ink:color(display-p3 .945 .941 .931);
  --muted:#A6A7AF;--muted:color(display-p3 .65 .655 .69);
  --line:color-mix(in srgb,var(--ink) 15%,transparent);
  --line-strong:color-mix(in srgb,var(--ink) 30%,transparent);
  --chip:color-mix(in srgb,var(--ink) 8%,var(--paper));
  --signal-soft:color-mix(in srgb,var(--signal) 14%,var(--paper));
  --signal-ink:var(--ink);--warning:#FFC27D;--shadow:none;
}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;text-size-adjust:100%;-webkit-text-size-adjust:100%}
body{margin:0;overflow-x:clip;background:var(--paper);color:var(--ink);font:400 16px/1.58 var(--body);text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:-1;background-image:linear-gradient(to right,color-mix(in srgb,var(--ink) 3%,transparent) 1px,transparent 1px),linear-gradient(to bottom,color-mix(in srgb,var(--ink) 3%,transparent) 1px,transparent 1px);background-size:32px 32px;mask-image:linear-gradient(to bottom,black,transparent 68%)}
a{color:inherit;text-decoration-color:color-mix(in srgb,var(--signal) 70%,transparent);text-underline-offset:.18em;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
button,input,select{font:inherit}
button,a,input,select{-webkit-tap-highlight-color:transparent}
:focus-visible{outline:3px solid var(--signal);outline-offset:3px}
.skip{position:fixed;left:16px;top:-80px;z-index:9999;background:var(--ink);color:var(--paper);padding:10px 14px;border-radius:4px;text-decoration:none;transition:top 160ms var(--ease)}
.skip:focus{top:16px}
.edition-switch{border-bottom:1px solid var(--line);background:var(--sheet)}
.edition-switch-inner{max-width:var(--wide);margin:auto;padding:8px clamp(20px,4vw,64px);display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.edition-switch-label{font:700 11px/1.2 var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-right:4px}
.edition-link{font-size:12px;text-decoration:none;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:6px 10px;transition:transform 120ms var(--ease),border-color 120ms var(--ease),color 120ms var(--ease)}
.edition-link:hover{color:var(--ink);border-color:var(--line-strong);transform:translateY(-1px)}
.edition-link[aria-current="page"]{color:var(--ink);background:var(--chip);border-color:var(--line-strong);font-weight:700}
.site-header{border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--paper) 88%,transparent);position:sticky;top:0;z-index:30;backdrop-filter:blur(18px) saturate(1.2)}
.header-inner{max-width:var(--wide);margin:auto;min-height:64px;padding:10px clamp(20px,4vw,64px);display:flex;align-items:center;gap:16px;justify-content:space-between}
.brand{font-family:var(--display);font-weight:650;font-size:20px;letter-spacing:-.025em;text-decoration:none;color:var(--ink);white-space:nowrap}
.brand .muted{font-family:var(--body);font-size:12px;letter-spacing:0}
.nav{display:flex;gap:4px;align-items:center;flex-wrap:wrap}
.nav a{font-size:14px;color:var(--muted);text-decoration:none;padding:8px 10px;border-radius:4px}
.nav a:hover{color:var(--ink);background:var(--chip)}
.mini-search{display:flex;gap:6px;align-items:center}
.mini-search input{width:min(27vw,280px)}
.mini-search.home-mini-search{display:none}
.search-docked .site-header .nav{display:none}
.search-docked .mini-search.home-mini-search{display:flex;margin-left:auto}
.search-docked .mini-search.home-mini-search input{width:min(42vw,460px)}
.search-input,input[type=search],select{min-height:44px;border:1px solid var(--line-strong);background:var(--sheet);color:var(--ink);border-radius:4px;padding:11px 12px;box-shadow:inset 0 1px 0 color-mix(in srgb,var(--ink) 4%,transparent)}
.search-input::placeholder,input[type=search]::placeholder{color:color-mix(in srgb,var(--muted) 82%,transparent)}
.button,button{min-height:44px;border:1px solid var(--line-strong);background:var(--sheet);color:var(--ink);border-radius:4px;padding:10px 14px;cursor:pointer;font-weight:650;transition:transform 100ms var(--ease),background 140ms var(--ease),border-color 140ms var(--ease)}
.button{text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.button:hover,button:hover{border-color:var(--signal);background:var(--signal-soft)}
.button:active,button:active{transform:scale(.98)}
.button.primary{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.button.primary:hover{background:var(--signal);border-color:var(--signal);color:white}
main{max-width:var(--wide);margin:auto;padding:clamp(32px,5vw,80px) clamp(20px,4vw,64px) 96px}
.home-main{display:flex;flex-direction:column}.home-main>*{order:5}.home-main>.home-hero{order:1}.home-main>.search-stage{order:2}.home-main>.notice{order:3}.home-main>.journey-grid,.home-main>.lane-grid{order:4}
.hero{max-width:1080px;padding:clamp(8px,2vw,24px) 0 clamp(28px,4vw,56px)}
.home-hero{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);column-gap:clamp(28px,5vw,80px);align-items:end;max-width:none;padding-bottom:clamp(28px,4vw,48px)}
.home-hero .eyebrow,.home-hero h1{grid-column:1}
.home-hero h1{font-size:clamp(54px,7vw,104px);margin-bottom:0}
.home-hero>p{grid-column:2;grid-row:1 / span 2;font-size:clamp(18px,1.6vw,24px);margin:0 0 .2em}
.home-hero .hero-actions,.home-hero .stats{display:none}
.eyebrow{font:700 11px/1.25 var(--mono);text-transform:uppercase;letter-spacing:.09em;color:var(--muted)}
.hero h1,.entry-title{font-family:var(--display);font-weight:520;font-size:clamp(48px,8.4vw,112px);line-height:.88;letter-spacing:-.055em;margin:.19em 0 .25em;text-wrap:balance}
.hero p{font-size:clamp(19px,2.2vw,28px);line-height:1.32;max-width:820px;color:var(--muted);letter-spacing:-.015em}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.hero-note{font-size:13px;color:var(--muted);margin-top:16px}
.stats{display:flex;gap:24px;flex-wrap:wrap;margin:24px 0 0;border-top:1px solid var(--line);padding-top:18px}
.stat{font-size:13px;color:var(--muted)}.stat strong{font-family:var(--display);font-weight:550;font-size:27px;line-height:1;color:var(--ink);display:block;margin-bottom:4px}
.journey-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:0 0 42px}
.journey{min-height:190px;border-top:2px solid var(--ink);padding:18px 4px 8px;text-decoration:none;display:flex;flex-direction:column;gap:8px}
.journey .step{font:700 11px/1.2 var(--mono);color:var(--signal);text-transform:uppercase;letter-spacing:.08em}
.journey h2{font-family:var(--display);font-weight:540;font-size:clamp(27px,3vw,40px);line-height:1;letter-spacing:-.035em;margin:0}
.journey p{color:var(--muted);margin:0;max-width:40ch}
.journey span:last-child{margin-top:auto;font-weight:650}
.search-stage{position:relative;margin:0 0 clamp(56px,8vw,96px)}
.search-panel{background:var(--sheet);border:1px solid var(--line-strong);border-radius:4px;padding:clamp(16px,2.5vw,28px);box-shadow:var(--shadow);margin:0;position:relative}
.search-panel-sticky{position:sticky;top:64px;z-index:24}
.search-title{font-family:var(--display);font-weight:540;font-size:clamp(28px,3.6vw,48px);line-height:1;letter-spacing:-.04em;margin:0 0 16px}
.search-panel::before{content:"";position:absolute;left:-1px;top:-1px;bottom:-1px;width:4px;background:var(--signal);border-radius:8px 0 0 8px}
.search-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(150px,auto) minmax(130px,auto) auto;gap:8px}
.search-row input{font-size:19px;padding:14px;min-height:54px}
.search-help{color:var(--muted);font-size:13px;margin:11px 3px 0}
kbd{font:600 11px/1 var(--mono);border:1px solid var(--line-strong);background:var(--chip);border-radius:3px;padding:3px 5px;box-shadow:0 1px 0 var(--line-strong)}
.search-output{max-width:var(--core);margin:22px auto 0}
.search-results{display:grid;gap:0;margin-top:8px;border-top:1px solid var(--line-strong)}
.result{display:grid;grid-template-columns:minmax(150px,.32fr) minmax(0,1fr) auto;column-gap:clamp(18px,3vw,48px);align-items:start;padding:22px 0;border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent;text-decoration:none;color:var(--ink);transition:color 140ms var(--ease),border-color 140ms var(--ease)}
.result:hover{border-color:var(--signal);color:var(--signal)}
.result strong{font-family:var(--display);font-size:clamp(25px,2.4vw,36px);line-height:1;font-weight:580;letter-spacing:-.03em;display:block;min-width:0;overflow-wrap:anywhere}
.result p{grid-column:2;margin:8px 0 0;color:var(--muted);max-width:68ch}
.result-cta{grid-column:3;grid-row:1 / span 2;font-weight:650;white-space:nowrap}
.result-meta{font:600 11px/1.3 var(--mono);color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
mark{background:transparent;color:inherit;padding:0;text-decoration:underline;text-decoration-color:var(--signal);text-decoration-thickness:2px;text-underline-offset:.14em}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.panel,.card{background:var(--sheet);border:1px solid var(--line);border-radius:6px;padding:20px;box-shadow:0 1px 0 color-mix(in srgb,var(--ink) 3%,transparent)}
a.panel,a.card{text-decoration:none;transition:transform 120ms var(--ease),border-color 120ms var(--ease)}
a.panel:hover,a.card:hover{border-color:var(--signal);transform:translateY(-2px)}
.panel,.card,.panel h2,.card h2{min-width:0}
.panel h2,.card h2{font-family:var(--display);font-weight:560;font-size:clamp(24px,2.25vw,38px);line-height:1.02;margin:0 0 14px;letter-spacing:-.04em;overflow-wrap:anywhere;text-wrap:pretty}
.panel p,.card p{color:var(--muted)}
.panel span:last-child,.card span:last-child{font-weight:650}
.section{margin:clamp(56px,8vw,108px) 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;border-bottom:1px solid var(--line-strong);padding-bottom:12px;margin-bottom:18px}
.section h2{font-family:var(--display);font-weight:540;font-size:clamp(30px,4.4vw,56px);line-height:.98;letter-spacing:-.045em;margin:0}
.section-intro{font-size:18px;color:var(--muted);max-width:64ch;margin:-5px 0 24px}
.notice{border:1px solid var(--line-strong);background:var(--signal-soft);padding:16px 18px;border-radius:5px;margin:20px 0;color:var(--ink)}
.notice strong{display:block;margin-bottom:3px}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:28px}
.breadcrumb ol{list-style:none;padding:0;margin:0;display:flex;gap:7px;flex-wrap:wrap}
.breadcrumb li:not(:last-child)::after{content:"/";margin-left:7px;color:var(--line-strong)}
.entry-layout{display:grid;grid-template-columns:minmax(0,790px) minmax(250px,1fr);gap:clamp(32px,5vw,72px);align-items:start;max-width:1300px}
.entry-kicker{color:var(--muted);font:600 12px/1.35 var(--mono);text-transform:uppercase;letter-spacing:.04em}
.entry-title{font-size:clamp(48px,7vw,92px);max-width:13ch;overflow-wrap:anywhere}
.aliases{font-size:15px;color:var(--muted);margin-top:-14px}
.definition-block{border-top:1px solid var(--line-strong);padding:28px 0}
.definition-block h2{font:700 11px/1.2 var(--mono);text-transform:uppercase;letter-spacing:.09em;color:var(--muted);margin:0 0 11px}
.eli5{font-family:var(--display);font-size:clamp(26px,3.6vw,42px);font-weight:480;line-height:1.16;letter-spacing:-.03em;margin:0;text-wrap:pretty}
.used-in{font-size:clamp(19px,2.2vw,24px);line-height:1.4;border-left:3px solid var(--signal);padding:3px 0 3px 20px;margin:0;font-style:normal;color:var(--muted)}
.prose{max-width:var(--measure)}.prose p{margin:.65em 0}
.chips{display:flex;gap:7px;flex-wrap:wrap}
.chip{background:var(--chip);padding:5px 9px;border:1px solid var(--line);border-radius:999px;font:600 11px/1.3 var(--mono)}
.aside{position:sticky;top:92px}.aside h2{font-family:var(--display);font-size:20px}
.link-list{list-style:none;padding:0;margin:0}.link-list li{border-top:1px solid var(--line);padding:10px 0}.link-list li:first-child{border-top:0}.link-list a{font-weight:650;text-decoration:none}
.distinction{font-size:13px;color:var(--muted);display:block;margin-top:3px}
.source-details{border-top:1px solid var(--line-strong);padding:0;margin:0}
.source-details summary{cursor:pointer;min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;font:700 11px/1.2 var(--mono);text-transform:uppercase;letter-spacing:.09em;color:var(--muted)}
.source-details summary::after{content:"+";font:500 22px/1 var(--body);color:var(--ink)}
.source-details[open] summary::after{content:"−"}
.source-details-body{padding:0 0 28px;max-width:var(--measure)}
.warning{border-left:4px solid var(--warning);padding:14px 16px;background:color-mix(in srgb,var(--warning) 9%,transparent);border-radius:0 4px 4px 0}
.term-list{columns:3 230px;column-gap:32px}.term-list li{break-inside:avoid;margin:0 0 9px}.term-list a{text-decoration:none}.list-meta{font:500 11px/1.35 var(--mono);color:var(--muted)}
.az-jump{position:sticky;top:64px;z-index:22;display:flex;gap:5px;align-items:center;overflow-x:auto;margin:0 0 40px;padding:10px;border:1px solid var(--line-strong);border-radius:5px;background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(18px) saturate(1.2);scrollbar-width:thin}
.az-jump a,.az-jump span{flex:1 0 38px;min-width:38px;padding:8px 6px;border:1px solid var(--line);border-radius:3px;text-align:center;text-decoration:none;font:700 12px/1 var(--mono)}
.az-jump a:hover{border-color:var(--signal);background:var(--signal-soft)}.az-jump .az-empty{opacity:.34}
.az-directory{display:grid}.az-group{scroll-margin-top:132px;border-top:1px solid var(--line-strong);padding:32px 0 54px}
.az-group-head{display:grid;grid-template-columns:minmax(90px,1fr) auto auto;gap:20px;align-items:baseline;margin-bottom:22px}
.az-group-head h2{margin:0;font:520 clamp(58px,7vw,96px)/.82 var(--display);letter-spacing:-.06em}
.az-group-count{color:var(--muted);font:650 12px/1.2 var(--mono)}.az-letter-link{font-size:13px;font-weight:650;text-decoration:none}
.az-group .az-term-list{columns:4 220px;column-gap:30px;margin:0;padding:0;list-style:none}
.az-group .az-term-list li{padding:7px 0 10px;border-bottom:1px solid var(--line);margin:0}.az-group .az-term-list a{font-weight:650;overflow-wrap:anywhere}
.course-module{margin:32px 0}.course-module ol{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:10px;padding:0;list-style:none;counter-reset:course}.course-module li{counter-increment:course}.course-module li a::before{content:counter(course) ". ";color:var(--muted)}
.footer{border-top:1px solid var(--line);padding:36px clamp(20px,4vw,64px);color:var(--muted);font-size:13px;background:var(--sheet)}
.footer-inner{max-width:var(--wide);margin:auto;display:grid;grid-template-columns:1fr 1fr;gap:24px}
.pagination{display:flex;justify-content:space-between;gap:14px;border-top:1px solid var(--line);padding-top:22px;margin-top:34px}.pagination a{text-decoration:none;font-weight:650}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.no-js{padding:12px;border:1px solid var(--line);border-radius:4px}
.match-reason{display:inline-block;font:600 10px/1.2 var(--mono);background:var(--chip);border:1px solid var(--line);border-radius:999px;padding:4px 7px;margin:6px 4px 0 0}
.dym{border:1px solid var(--line);background:var(--paper);padding:13px;border-radius:5px;margin-top:11px}.dym button{margin:4px}
.alpha-nav{display:flex;gap:6px;flex-wrap:wrap}.alpha-nav a{min-width:38px;text-align:center;border:1px solid var(--line);border-radius:4px;padding:7px;text-decoration:none;font-weight:650}.alpha-nav a:hover{border-color:var(--signal);background:var(--signal-soft)}
.dataset-downloads{display:flex;gap:10px;flex-wrap:wrap}.muted{color:var(--muted)}code{font-family:var(--mono);font-size:.92em;overflow-wrap:anywhere}
.lane-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.lane-card{border-top:3px solid var(--signal);background:var(--sheet);padding:22px;text-decoration:none;min-height:230px;display:flex;flex-direction:column}
.lane-card h2{font-family:var(--display);font-weight:550;font-size:34px;letter-spacing:-.04em;margin:10px 0}
.lane-card p{color:var(--muted)}.lane-card span:last-child{margin-top:auto;font-weight:650}
.essential-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:8px}
.essential-term{border:1px solid var(--line);background:var(--sheet);padding:14px;text-decoration:none;min-height:110px;display:flex;flex-direction:column}
.essential-term strong{font-family:var(--display);font-size:21px;letter-spacing:-.02em}.essential-term small{color:var(--muted);margin-top:5px}
.route-note{font:600 12px/1.45 var(--mono);color:var(--muted);border-top:1px solid var(--line);padding-top:13px}
@media(max-width:1000px){.entry-layout{grid-template-columns:1fr}.aside{position:static}.header-inner{flex-wrap:wrap}.mini-search{display:flex;order:3;width:100%}.mini-search input{width:auto;min-width:0;flex:1}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.term-list{columns:2 200px}.az-group .az-term-list{columns:2 220px}.journey-grid,.lane-grid{grid-template-columns:1fr 1fr}.search-panel-sticky{top:64px}.search-row{grid-template-columns:minmax(0,1fr) auto auto}.search-submit{grid-column:1 / -1}}
@media(max-width:720px){
  .edition-switch-inner{align-items:flex-start}.edition-switch-label{width:100%}
  .header-inner{min-height:58px;gap:8px 12px}.nav{display:flex;width:100%;order:2;overflow-x:auto;flex-wrap:nowrap;scrollbar-width:none}.nav::-webkit-scrollbar{display:none}.nav a{white-space:nowrap;padding:6px 8px}.brand{font-size:18px}.mini-search{order:3}
  main{padding-top:34px;padding-bottom:72px}
  .search-row{grid-template-columns:1fr 1fr}.search-row input{grid-column:1 / -1;font-size:16px}.search-submit{grid-column:1 / -1}
  .search-panel-sticky{top:102px}.search-output{margin-top:16px}.result{grid-template-columns:1fr;padding:18px 0;gap:5px}.result-meta{grid-row:1}.result strong{grid-row:2}.result p{grid-column:1;grid-row:3}.result-cta{grid-column:1;grid-row:4;margin-top:5px}.grid{grid-template-columns:1fr}
  .home-hero{grid-template-columns:1fr}.home-hero .eyebrow,.home-hero h1,.home-hero>p{grid-column:1;grid-row:auto}.home-hero>p{margin-top:18px}
  .journey-grid,.lane-grid{grid-template-columns:1fr}.journey{min-height:150px}
  .term-list,.az-group .az-term-list{columns:1}.az-jump{position:static;margin-bottom:28px;flex-wrap:wrap;overflow:visible}.az-jump a,.az-jump span{flex:1 0 38px}.az-group{padding:26px 0 42px}.az-group-head{grid-template-columns:1fr auto;gap:8px 14px}.az-group-head h2{font-size:64px}.az-letter-link{grid-column:1/-1}.hero h1{font-size:clamp(50px,15vw,72px)}.entry-title{font-size:clamp(50px,15vw,74px);max-width:none}
  .footer-inner{grid-template-columns:1fr}.pagination{flex-direction:column}
  .section{margin:62px 0}.section-head{align-items:flex-start}
}
@media(max-width:390px){.edition-link{font-size:11px}.panel,.card{padding:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
@media(forced-colors:active){.search-panel::before{background:CanvasText}.chip,.match-reason{border:1px solid CanvasText}.button.primary{forced-color-adjust:auto}}
@media print{.site-header,.edition-switch,.mini-search,.footer,.search-panel,.pagination,.hero-actions{display:none!important}body{background:#fff;color:#000}body::before{display:none}.panel,.card{box-shadow:none}a{color:#000}}