@layer reset, base, components, responsive;
@layer reset {
  *,*::before,*::after{box-sizing:border-box}
  body,h1,h2,h3,h4,p,figure{margin:0}
  button,input,select{font:inherit}
  img,svg{display:block;max-width:100%}
  button{cursor:pointer;color:inherit}
  a{color:inherit;text-decoration:none}
  [hidden]{display:none!important}
  html{scroll-padding-top:100px}
}
@layer base {
  :root{--ink:#17191e;--muted:#626770;--line:#d9dce1;--blue:#174af4;--pale:#f3f5f8;--mono:"SFMono-Regular",Consolas,"Liberation Mono",monospace;--sans:"Helvetica Neue",Helvetica,Arial,sans-serif;--serif:Georgia,"Times New Roman",serif}
  body{background:#fff;color:var(--ink);font:16px/1.65 var(--sans);-webkit-font-smoothing:antialiased}
  ::selection{background:#dce5ff}
  :focus-visible{outline:2px solid var(--blue);outline-offset:4px}
  h1,h2,h3,h4{font-weight:500;line-height:1.15}
  h2{font-size:clamp(1.75rem,2.5vw,2.25rem);letter-spacing:-.045em}
  h3{font-size:1.5rem;letter-spacing:-.03em}
  strong{font-weight:600}
  svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
  .wrap{width:min(1160px,calc(100% - 96px));margin-inline:auto}
  .mono,.eyebrow,.file-label{font-family:var(--mono)}
  .mono{font-size:.75rem;letter-spacing:.06em}
  .muted{color:var(--muted)}
}
@layer components {
  .skip-link{position:fixed;z-index:1000;top:12px;left:12px;background:var(--ink);color:white;padding:12px 20px;transform:translateY(-160%)}
  .skip-link:focus{transform:none}
  .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}
  .site-header{height:68px;display:flex;align-items:center;justify-content:space-between;padding-inline:48px;border-bottom:1px solid var(--line)}
  .wordmark{display:inline-flex;align-items:center;font-weight:600;white-space:nowrap;letter-spacing:-.025em}
  .wordmark-light{font-weight:400;color:var(--muted)}
  .header-paper{font-size:.8125rem;display:flex;align-items:center;gap:10px}
  .file-label{font-size:.75rem;border:1px solid var(--line);padding:0 4px}
  .hero{padding-block:72px 76px;text-align:center}
  .hero-copy{animation:hero-enter .65s ease-out both}
  .eyebrow{display:flex;align-items:center;justify-content:center;gap:11px;font-size:.75rem;letter-spacing:.04em;margin-bottom:24px}
  .blue-rule{width:25px;height:3px;background:var(--blue)}
  .eyebrow-sep{color:#adb1bb;margin-inline:4px}
  h1{font-size:clamp(2.8rem,5vw,4.5rem);line-height:1.08;font-weight:500;letter-spacing:-.055em}
  .title-line{display:block}
  h1 em{font-family:var(--serif);font-weight:400;color:var(--blue);letter-spacing:-.055em}
  .title-word{display:inline-block;white-space:nowrap}
  .title-word+.title-word{margin-left:.18em}
  .title-tail{display:inline-block;vertical-align:bottom}
  .title-intro .title-tail{animation:title-expand .85s cubic-bezier(.22,.7,.2,1) 1s backwards}
  .title-intro .title-word+.title-word{animation:title-space .85s cubic-bezier(.22,.7,.2,1) 1s backwards}
  .title-period{color:var(--blue)}
  .hero-subtitle{font-size:1.3rem;letter-spacing:-.015em;margin-top:24px}
  .hero-authors{display:grid;gap:5px;margin-top:26px;font-size:1rem;line-height:1.6}
  .author-row{display:flex;flex-wrap:wrap;justify-content:center;gap:5px 22px}
  .author-row>span{white-space:nowrap}
  .hero-authors sup,.hero-affiliations sup{font-size:.65em;color:var(--blue);margin-left:2px}
  .hero-affiliations{margin-top:14px;font-size:.875rem;line-height:1.7;color:var(--muted)}
  .author-notes{margin-top:10px;font-size:.75rem;color:var(--muted)}
  .author-notes>span{margin-inline:7px}
  .author-contact{display:flex;flex-wrap:wrap;justify-content:center;gap:5px 10px;margin-top:6px;font-size:.75rem;color:var(--muted)}
  .author-contact a:hover{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
  .hero-actions{display:flex;gap:12px;justify-content:center;margin-top:30px}
  .button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:46px;padding:11px 25px;font-size:.875rem;border:1px solid var(--line);font-weight:500;transition:background .18s,color .18s,transform .18s}
  .button:hover{transform:translateY(-2px)}
  .primary{background:var(--blue);color:white;border-color:var(--blue)}
  .primary:hover{background:#103dcc;border-color:#103dcc}
  .secondary{background:white}
  .secondary:hover{background:var(--pale)}
  .section-nav{position:sticky;top:0;z-index:40;background:white;border-block:1px solid var(--line)}
  .desktop-nav{display:flex;align-items:center;justify-content:center;gap:6px;padding-block:10px;overflow-x:auto;scrollbar-width:thin}
  .desktop-nav a{font-size:.875rem;white-space:nowrap;padding:10px 19px;min-height:44px;transition:background .18s,color .18s}
  .desktop-nav a:hover{background:var(--pale)}
  .desktop-nav a[aria-current]{background:var(--blue);color:white}
  .content-view:not([hidden]){animation:content-enter .32s ease-out both}
  .section{padding-block:44px 52px;border-bottom:1px solid var(--line)}
  .section-heading{display:flex;align-items:baseline;justify-content:space-between;gap:24px;margin-bottom:30px;padding-bottom:18px;border-bottom:2px solid var(--blue)}
  .overview-section{padding-bottom:28px}
  .overview-section .section-heading{margin-bottom:22px}
  .overview-summary{max-width:700px;padding-top:6px}
  .overview-summary .lead{font-size:1.25rem;line-height:1.55;letter-spacing:-.02em}
  .overview-summary>p+p{font-size:1.0625rem;line-height:1.65;color:var(--muted);margin-top:14px}
  .map-figure{border:1px solid var(--line);padding:24px}
  .map-figure .figure-button img{max-height:760px;object-fit:contain}
  .map-figure figcaption{display:flex;justify-content:space-between;gap:30px;font-size:.75rem;color:var(--muted);border-top:1px solid var(--line);padding-top:16px;margin-top:20px}
  .map-figure figcaption a{color:var(--ink);text-decoration:underline;text-underline-offset:4px}
  .literature-map{margin-bottom:32px}
  .figure-button{border:0;padding:0;background:white;width:100%;display:block;cursor:zoom-in;position:relative}
  .figure-button>img{width:100%;height:auto}
  .figure-button::after{content:"＋";position:absolute;bottom:8px;right:8px;width:27px;height:27px;background:var(--ink);color:white;line-height:27px;font-size:18px;text-align:center}
  .paradigm-tabs{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--ink);border-bottom:1px solid var(--line)}
  .paradigm-tabs button{text-align:left;padding:20px;background:white;border:0;border-right:1px solid var(--line);font-size:1.0625rem;line-height:1.35;letter-spacing:-.025em;position:relative;transition:background .18s,color .18s}
  .paradigm-tabs button:last-child{border-right:0}
  .paradigm-tabs button>span{display:block;font-family:var(--mono);font-size:.75rem;color:var(--muted);margin-bottom:10px}
  .paradigm-tabs button[aria-selected=true]{color:var(--blue)}
  .paradigm-tabs button[aria-selected=true]::after{content:"";height:3px;left:0;bottom:-1px;right:0;background:var(--blue);position:absolute}
  .paradigm-tabs button:hover{background:var(--pale)}
  .paradigm-panel{display:grid;grid-template-columns:1fr;gap:26px;padding-top:28px}
  .paradigm-figure{background:var(--pale);padding:24px}
  .paradigm-figure img{max-height:390px;object-fit:contain}
  .paradigm-figure figcaption{font-size:.75rem;line-height:1.5;color:var(--muted);margin-top:14px}
  .paradigm-description p{color:var(--muted);font-size:.9375rem}
  .direction-tabs{display:grid;grid-template-columns:repeat(var(--direction-count),minmax(0,1fr));gap:24px}
  .direction-tabs button{display:flex;gap:13px;align-items:baseline;text-align:left;background:white;border:0;border-top:2px solid var(--line);padding:14px 10px;font-size:.875rem;line-height:1.5;transition:color .18s,border-color .18s,background .18s}
  .direction-tabs button span{font-family:var(--mono);font-size:.75rem;color:var(--muted)}
  .direction-tabs button:hover{background:var(--pale)}
  .direction-tabs button[aria-selected=true]{color:var(--blue);border-top-color:var(--blue)}
  .direction-tabs button[aria-selected=true] span{color:var(--blue)}
  .direction-panel{display:grid;gap:20px}
  .direction-summary{max-width:850px;padding-block:20px}
  .direction-summary p{font-size:1.125rem;line-height:1.7}
  .text-link{font-size:.875rem;color:var(--blue);display:inline-block;text-decoration:underline;text-underline-offset:4px;margin-top:20px}
  .direction-panel>.text-link{justify-self:start;margin:0}
  .data-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
  .data-column{border-top:1px solid var(--ink);padding-top:16px}
  .data-topline{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;gap:10px}
  .data-topline>span:last-child{font-size:.75rem;color:var(--muted)}
  .data-column>img{width:100%;height:200px;object-fit:cover}
  .data-column h3{font-size:1.4rem;margin-top:22px;line-height:1.2;min-height:54px}
  .data-examples{font-size:.8125rem;padding-top:16px;border-top:1px solid var(--line);margin-top:20px;line-height:1.8}
  .data-column .text-link{font-size:.8125rem}
  .source-note{font-size:.75rem;color:var(--muted);line-height:1.6;margin-top:25px}
  .index-downloads{display:flex;gap:23px;font-size:.8125rem}
  .index-downloads a{text-decoration:underline;text-underline-offset:4px}
  .catalog-groups{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:24px}
  .catalog-groups button{border:1px solid var(--line);background:white;font-size:.8125rem;padding:7px 12px;min-height:38px;transition:background .18s,color .18s}
  .catalog-groups button:hover{border-color:var(--ink)}
  .catalog-groups button[aria-pressed=true]{background:var(--ink);color:white;border-color:var(--ink)}
  .catalog-groups button span{font-family:var(--mono);font-size:.75rem;margin-left:6px;color:var(--muted)}
  .catalog-groups button[aria-pressed=true] span{color:#c0c5ce}
  .catalog-controls{display:grid;grid-template-columns:2fr 1.5fr .65fr 1.15fr auto;gap:15px;padding:24px 0;border-top:1px solid var(--ink);align-items:end}
  .catalog-controls label>span{display:block;font-family:var(--mono);font-size:.75rem;color:var(--muted);letter-spacing:.04em;margin-bottom:9px}
  .catalog-controls input,.catalog-controls select{height:43px;border:1px solid var(--line);background:white;border-radius:0;width:100%;font-size:.875rem;padding:9px 11px;color:var(--ink);min-width:0}
  .search-field>div{position:relative}
  .search-field svg{position:absolute;left:12px;top:13px;width:17px;height:17px;color:var(--muted)}
  .search-field input{padding-left:38px}
  .reset-button{border:0;background:none;min-height:43px;text-decoration:underline;text-underline-offset:4px;font-size:.8125rem}
  .reset-button:disabled{color:#969ba5;cursor:default;text-decoration:none}
  .catalog-status{font-size:.8125rem;padding-bottom:15px}
  .table-scroll{overflow-x:auto}
  .paper-table{width:100%;border-collapse:collapse;font-size:.875rem;text-align:left}
  .paper-table th{font-family:var(--mono);font-size:.75rem;font-weight:400;letter-spacing:.04em;background:var(--pale);padding:13px 16px;border-block:1px solid var(--line);color:var(--muted)}
  .paper-table td{padding:20px 16px;border-bottom:1px solid var(--line);vertical-align:top}
  .paper-table tbody tr:hover{background:#fafbfe}
  .paper-table th:first-child,.paper-table td:first-child{padding-left:10px;width:60px}
  .paper-table th:nth-child(2){width:58%}.paper-table th:nth-child(3){width:28%}.paper-table th:nth-child(4){width:65px}
  .paper-ref{font-family:var(--mono);color:var(--muted);font-size:.75rem}
  .paper-title{font-weight:500;line-height:1.4;display:block;font-size:1rem;letter-spacing:-.02em}
  .paper-title:hover{color:var(--blue)}
  .paper-authors{font-size:.75rem;color:var(--muted);margin-top:8px;line-height:1.5}
  .paper-venue{font-size:.75rem;color:var(--muted);margin-top:4px}
  .paper-group{font-size:.75rem;line-height:1.45;display:block}
  .paper-topic{font-size:.75rem;line-height:1.5;color:var(--muted);margin-top:6px;display:block}
  .paper-year{font-family:var(--mono);font-size:.75rem}
  .catalog-empty,.catalog-error{border-bottom:1px solid var(--line);padding:45px 20px;text-align:center;background:var(--pale)}
  .catalog-empty h3,.catalog-error h3{font-size:1.25rem;margin-bottom:20px}
  .pagination{display:flex;justify-content:space-between;align-items:center;font-size:.8125rem;padding-top:20px;gap:16px}
  .pagination>div{display:flex;align-items:center;gap:12px}
  .pagination label{color:var(--muted);font-size:.75rem}
  .pagination button,.pagination select{border:1px solid var(--line);border-radius:0;background:white;padding:6px 12px;min-height:36px;font-size:.8125rem}
  .pagination button:hover:not(:disabled){border-color:var(--blue);color:var(--blue)}
  .pagination button:disabled{color:#969ba5;cursor:default}
  .noscript-note{margin-top:24px;font-size:.875rem}.noscript-note a{text-decoration:underline}
  .challenges-layout,.citation-layout{display:grid;grid-template-columns:1fr;gap:32px}
  .challenges-layout h2,.citation-layout h2{padding-bottom:18px;border-bottom:2px solid var(--blue)}
  .challenge-list{margin:0;padding:0;list-style:none}
  .challenge-list li{display:flex;gap:24px;border-top:1px solid var(--line);padding:23px 0}
  .challenge-list li:first-child{border-top:0}
  .challenge-list li>span{font-size:.75rem;font-family:var(--mono);color:var(--blue);padding-top:2px}
  .challenge-list h3{font-size:1.125rem;line-height:1.35}
  .challenge-list p{max-width:85ch;margin-top:8px;font-size:.9375rem;line-height:1.65;color:var(--muted)}
  .citation-code{border:1px solid var(--line);min-width:0;background:var(--pale)}
  .code-topline{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;border-bottom:1px solid var(--line);gap:15px}
  .code-topline .mono{font-size:.75rem;color:var(--muted)}
  .code-topline button{font-size:.75rem;border:0;background:none;color:var(--blue);padding:5px 0;text-decoration:underline;text-underline-offset:4px}
  .citation-code pre{margin:0;padding:22px 20px;overflow-x:auto;font-size:.8125rem;line-height:1.85;white-space:pre-wrap;overflow-wrap:anywhere}
  .citation-code code{font-family:var(--mono)}
  .footer{display:flex;align-items:center;gap:32px;padding-block:34px;font-size:.8125rem}
  .footer>a:nth-last-child(2){margin-left:auto}.footer .wordmark{font-size:.875rem}
  dialog{border:1px solid var(--line);padding:0;width:min(1400px,96vw);max-width:96vw;max-height:92dvh;color:var(--ink);background:white}
  dialog::backdrop{background:rgba(15,20,35,.72)}
  .dialog-bar{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;border-bottom:1px solid var(--line);gap:24px}
  .dialog-bar h2{font-size:1rem;letter-spacing:-.02em}
  .dialog-bar>div{display:flex;gap:24px;align-items:center;white-space:nowrap;font-size:.875rem}
  .dialog-bar a{text-decoration:underline;text-underline-offset:4px}
  .dialog-bar button{border:0;background:none;padding:6px 0}
  .dialog-bar button span{font-size:24px;line-height:14px;margin-left:10px}
  .dialog-bar button#dialog-zoom{color:var(--blue);text-decoration:underline;text-underline-offset:4px}
  .dialog-image{overflow:auto;max-height:calc(92dvh - 140px);padding:24px;background:#f6f7f9;text-align:center}
  .dialog-image img{margin-inline:auto;max-height:70dvh;width:auto;max-width:100%;object-fit:contain;background:white}
  dialog[data-zoomed] .dialog-image img{width:1800px;min-width:1800px;max-width:none;max-height:none;height:auto}
  dialog[data-zoomed] .dialog-image{text-align:left}
  #dialog-caption{font-size:.8125rem;color:var(--muted);padding:16px 24px;line-height:1.5}
  .live-message{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;font-size:.875rem;padding:10px 20px;z-index:100;opacity:0;pointer-events:none;transition:opacity .15s}
  .live-message.show{opacity:1}
  @keyframes hero-enter{from{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}
  @keyframes title-expand{from{width:0;opacity:0;overflow:hidden}to{width:var(--tail-width);opacity:1;overflow:hidden}}
  @keyframes title-space{from{margin-left:0}to{margin-left:.18em}}
  @keyframes content-enter{from{opacity:.15;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
}
@layer responsive {
  @media(max-width:1000px){
    .wrap{width:calc(100% - 64px)}.site-header{padding-inline:32px}
    .desktop-nav a{padding-inline:14px;font-size:.8125rem}
    .paradigm-tabs button{font-size:1rem;padding:16px}
    .data-grid{gap:24px}.data-column h3{font-size:1.2rem}.data-column>img{height:170px}
    .catalog-controls{grid-template-columns:1.8fr 1.2fr .65fr 1.2fr auto;gap:10px}
  }
  @media(max-width:760px){
    .wrap{width:calc(100% - 40px)}.site-header{height:60px;padding-inline:20px}
    .hero{padding-block:52px 56px}h1{font-size:clamp(2.4rem,6.5vw,3.5rem)}
    .hero-subtitle{font-size:1.125rem}
    .desktop-nav{justify-content:flex-start;gap:4px;width:100%;padding-inline:20px}
    .desktop-nav a{padding-inline:15px;flex-shrink:0}
    .section{padding-block:32px 40px}.section-heading{margin-bottom:24px}
    .overview-summary .lead{font-size:1.0625rem}
    .map-figure{padding:16px}
    .paradigm-tabs{grid-template-columns:1fr 1fr}
    .paradigm-tabs button:nth-child(2){border-right:0}.paradigm-tabs button:nth-child(-n+2){border-bottom:1px solid var(--line)}
    .paradigm-figure{padding:16px}
    .data-grid{gap:18px}.data-topline{flex-direction:column;align-items:start;gap:4px}
    .data-column h3{font-size:1.1rem;min-height:48px}.data-column>img{height:145px}
    .data-examples{font-size:.75rem;min-height:70px}.data-column .text-link{font-size:.75rem}
    .catalog-controls{grid-template-columns:1.3fr 1fr 1fr}
    .search-field{grid-column:span 2}.catalog-controls label:nth-child(2){grid-column:1;grid-row:2}
    .catalog-controls label:nth-child(3){grid-column:3;grid-row:1}.catalog-controls label:nth-child(4){grid-column:2;grid-row:2}
    .catalog-controls .reset-button{grid-column:3;grid-row:2;text-align:left}
    .paper-table{min-width:640px}.paper-table td{padding-inline:12px}
    .footer{gap:20px}
  }
  @media(max-width:540px){
    html{scroll-padding-top:86px}
    .wordmark{font-size:.875rem}.header-paper{font-size:.75rem}.file-label{display:none}
    .hero{padding-block:44px 48px}h1{font-size:clamp(2.1rem,9.2vw,3rem);line-height:1.1}
    .eyebrow{margin-bottom:22px;font-size:.75rem}.hero-subtitle{font-size:1rem;margin-top:20px}
    .hero-authors{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 16px;font-size:.875rem;margin-top:22px}
    .author-row{display:contents}
    .hero-affiliations{font-size:.75rem;margin-top:12px}
    .author-contact{flex-direction:column;align-items:center}
    .author-contact>span{display:none}
    .hero-actions{margin-top:24px}.button{padding:10px 24px;font-size:.8125rem}
    .desktop-nav{padding-block:8px}.desktop-nav a{font-size:.8125rem;padding:10px 14px}
    h2{font-size:1.75rem}.section-heading{padding-bottom:14px;gap:16px}
    .map-figure{padding:10px}.map-figure figcaption{font-size:.75rem;margin-top:12px;padding-top:12px}
    .map-figure .figure-button img{max-height:none}
    .paradigm-tabs button{font-size:.9375rem;padding:14px 12px;min-height:100px}
    .paradigm-panel{gap:22px;padding-top:22px}.paradigm-figure{padding:12px}
    .direction-tabs{grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:190px;gap:16px;overflow-x:auto}
    .direction-tabs button{padding:12px 6px;gap:10px}
    .direction-summary p{font-size:1rem}
    .data-grid{grid-template-columns:1fr;gap:32px}.data-topline{flex-direction:row;align-items:baseline}
    .data-column>img{height:200px}.data-column h3{font-size:1.4rem;min-height:0;margin-top:20px}
    .data-examples{font-size:.8125rem;min-height:0}.data-column .text-link{font-size:.875rem;margin-top:16px}
    .index-downloads{font-size:.75rem}.catalog-groups button{font-size:.75rem;padding:7px 9px}
    .catalog-controls{grid-template-columns:1fr 1fr;gap:14px;padding-block:18px}
    .search-field{grid-column:1/-1;grid-row:1}.catalog-controls label:nth-child(2){grid-column:1/-1;grid-row:2}
    .catalog-controls label:nth-child(3){grid-column:1;grid-row:3}.catalog-controls label:nth-child(4){grid-column:2;grid-row:3}
    .catalog-controls .reset-button{grid-column:1/-1;grid-row:4;min-height:20px;width:fit-content}
    .catalog-controls input,.catalog-controls select{font-size:1rem;min-height:44px}
    .catalog-status{font-size:.75rem}.paper-title{font-size:.9375rem}.paper-table td{padding:16px 12px}
    .paper-table th:nth-child(2){width:300px}.paper-table th:nth-child(3){width:170px}
    .pagination{align-items:start;font-size:.75rem}.pagination>div{gap:7px;flex-wrap:wrap;justify-content:end}
    .pagination label{display:none}.pagination button,.pagination select{padding-inline:8px;font-size:.75rem;min-height:40px}
    .pagination>span{white-space:nowrap;padding-top:8px}
    .challenge-list li{gap:18px;padding-block:20px}.challenge-list h3{font-size:1.0625rem}
    .citation-code pre{font-size:.75rem;padding:18px 14px}.code-topline{padding:12px 14px}
    .footer{display:grid;grid-template-columns:1fr auto;padding-block:28px;gap:15px}
    .footer .wordmark{grid-column:1/-1}.footer>a:nth-last-child(2){margin-left:0}
    .dialog-bar{padding:12px 16px;align-items:start;gap:12px}.dialog-bar h2{font-size:.875rem}
    .dialog-bar>div{gap:12px;font-size:.75rem}.dialog-image{padding:8px}#dialog-caption{padding:12px 16px;font-size:.75rem}
    .live-message{width:max-content;max-width:90vw;bottom:18px}
  }
  @media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
}