/* ==========================================================================
   Vidit Nanda — site stylesheet ("Cell Complex" theme)
   Shared by index, papers, teaching, software, perseus/ and cat/.
   Older archive pages (engcalc/, linalg/, evals/ ...) still use style.css.
   ========================================================================== */

/* ---- Fonts (self-hosted IBM Plex; no third-party requests) -------------- */
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:300;font-display:swap;src:url(fonts/ibm-plex-sans-latin-ext-300-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,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:"IBM Plex Sans";font-style:normal;font-weight:300;font-display:swap;src:url(fonts/ibm-plex-sans-latin-300-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/ibm-plex-sans-latin-ext-400-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,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:"IBM Plex Sans";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/ibm-plex-sans-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans";font-style:italic;font-weight:400;font-display:swap;src:url(fonts/ibm-plex-sans-latin-ext-400-italic.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,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:"IBM Plex Sans";font-style:italic;font-weight:400;font-display:swap;src:url(fonts/ibm-plex-sans-latin-400-italic.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:500;font-display:swap;src:url(fonts/ibm-plex-sans-latin-ext-500-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,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:"IBM Plex Sans";font-style:normal;font-weight:500;font-display:swap;src:url(fonts/ibm-plex-sans-latin-500-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:600;font-display:swap;src:url(fonts/ibm-plex-sans-latin-ext-600-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,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:"IBM Plex Sans";font-style:normal;font-weight:600;font-display:swap;src:url(fonts/ibm-plex-sans-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/ibm-plex-mono-latin-ext-400-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,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:"IBM Plex Mono";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/ibm-plex-mono-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:500;font-display:swap;src:url(fonts/ibm-plex-mono-latin-ext-500-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,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:"IBM Plex Mono";font-style:normal;font-weight:500;font-display:swap;src:url(fonts/ibm-plex-mono-latin-500-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

/* ---- Tokens -------------------------------------------------------------- */
:root{
  --bg:#0F1012; --bg-raised:#17181B; --bg-row:#16171A;
  --line:#2A2C31; --line-soft:#22242A; --line-strong:#3A3D44;
  --ink:#E8E8E6; --ink-strong:#F4F4F2; --ink-soft:#D6D8DC; --ink-2:#C9CBD0;
  --muted:#A6A9B0; --faint:#8A8E96;
  --accent:#8FB0FF; --accent-hover:#C7D6FF; --bar:#5E636D; --bar-dim:#33363C;
  --sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  --wrap:1200px; --gutter:24px;
  color-scheme:dark;
}

/* ---- Base ---------------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scroll-padding-top:24px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;font-weight:400;overflow-wrap:break-word}
main,.hero__inner,.doc__body,.prose{min-width:0}
img{max-width:100%;height:auto}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-hover);text-decoration:underline}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
h1,h2,h3{margin:0;font-weight:400;line-height:1.2}
p{margin:0}
code,kbd,pre{font-family:var(--mono)}
button,input{font:inherit;color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.mono{font-family:var(--mono)}
.muted{color:var(--muted)}
.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}
.skip{position:absolute;left:12px;top:-60px;z-index:10;background:var(--ink);color:var(--bg);padding:10px 14px;border-radius:2px}
.skip:focus{top:12px}

/* ---- Header / hero ------------------------------------------------------- */
.hero{position:relative;overflow:hidden;background:#000}
.hero__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55}
.hero__img--line{opacity:.85}   /* line-art backgrounds (Morse–Smale) need more presence than photos */
.hero__scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,16,18,.2) 0%,rgba(15,16,18,.95) 100%)}
.hero--home .hero__scrim{background:linear-gradient(90deg,rgba(15,16,18,.96) 0%,rgba(15,16,18,.75) 55%,rgba(15,16,18,.25) 100%)}
.hero__inner{position:relative;display:flex;flex-direction:column;justify-content:space-between;min-height:260px}
.site-header{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 16px;padding-top:24px}
.brand{color:#fff;font-family:var(--mono);font-size:15px;letter-spacing:.04em}
.brand:hover{color:#fff}
.nav{display:flex;flex-wrap:wrap;gap:4px;font-size:15px}
.nav a{color:var(--ink-2);padding:10px 14px;border-radius:2px}
.nav a:hover{color:#fff;background:rgba(255,255,255,.08);text-decoration:none}
.nav a[aria-current="page"],.nav a.is-current{color:var(--bg);background:var(--ink)}
.hero__title{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px 24px;padding:56px 0 28px}
.hero__title h1{overflow-wrap:break-word;hyphens:auto;font-size:56px;line-height:1;font-weight:300;letter-spacing:-.02em;color:#fff}
.hero__meta{font-family:var(--mono);font-size:14px;color:var(--ink-2)}
.hero__jump a{color:var(--ink-2);text-decoration:underline;text-decoration-color:var(--line-strong);text-underline-offset:3px;padding:12px 0}
.hero__jump a:hover{color:#fff;text-decoration-color:currentColor}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
.hero__lede{max-width:640px;margin-top:14px;font-size:18px;color:var(--ink-soft)}

/* home hero */
.home-intro{display:flex;flex-wrap:wrap;gap:40px;align-items:flex-end;padding:88px 0 72px}
.home-intro__text{flex:999 1 520px;min-width:0}
.home-intro h1{font-size:88px;line-height:.95;font-weight:300;letter-spacing:-.03em;color:#fff}
.home-intro p{margin-top:28px;max-width:640px;font-size:20px;line-height:1.5;color:var(--ink-soft)}
.home-intro p.home-intro__past{margin-top:14px;font-size:16px;color:var(--ink-2)}
.home-intro img{flex:0 1 220px;width:220px;aspect-ratio:1/1;object-fit:cover;border-radius:2px;border:1px solid var(--line-strong)}

/* ---- Sections ------------------------------------------------------------ */
.section{padding-top:64px}
.section-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:12px;border-bottom:1px solid var(--line);padding-bottom:12px}
.section-head h2{font-size:28px;font-weight:300}
.section-head a{font-family:var(--mono);font-size:13px}
.label{font-family:var(--mono);font-size:12px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.prose{max-width:760px;color:var(--ink-soft)}
.prose>*+*{margin-top:16px}
.prose ul{margin:0;padding-left:22px}
.prose li+li{margin-top:6px}
.prose strong{color:var(--ink-strong);font-weight:500}
.prose>h3,.prose>*+h3{margin-top:36px;margin-bottom:12px;font-size:20px;font-weight:500;color:var(--ink-strong)}

/* panel grid (home overview) */
.panels{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(260px,100%),1fr));gap:1px;background:var(--line);border:1px solid var(--line);margin-top:48px}
.panel{background:var(--bg);padding:28px}
.panel .label{display:block;margin-bottom:12px}
.panel p{color:var(--ink-soft)}

/* generic list rows */
.rows{list-style:none;margin:0;padding:0}
.row{display:grid;grid-template-columns:56px minmax(0,1fr) auto;gap:16px;padding:16px 0;border-bottom:1px solid var(--line-soft);align-items:baseline}
.row__n{font-family:var(--mono);font-size:13px;color:var(--faint)}
.row__t{color:var(--ink-strong);font-weight:500}
.row__meta{font-family:var(--mono);font-size:13px;color:var(--muted);text-align:right}

/* people */
.people{display:flex;flex-wrap:wrap;gap:32px 64px;padding-top:20px}
.people__col{flex:1 1 280px}
.people__col--wide{flex:2 1 520px}
.people ul{list-style:none;margin:8px 0 0;padding:0;font-size:15px}
.people--grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(260px,100%),1fr));column-gap:40px}
.person{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:9px 0;border-bottom:1px solid var(--line-soft)}
.person small{display:block;font-size:13px;color:var(--muted)}
.person small a{color:var(--muted);text-decoration:underline;text-decoration-color:var(--line-strong)}
.person small a:hover{color:var(--ink)}
.person .person__years{flex:none;font-family:var(--mono);font-size:13px;color:var(--muted)}

/* buttons / chips */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 16px;border:1px solid var(--line-strong);border-radius:2px;background:transparent;color:var(--ink);cursor:pointer;font-size:14px;text-decoration:none}
.btn:hover{border-color:var(--muted);color:#fff;text-decoration:none}
.btn--solid{background:var(--ink);border-color:var(--ink);color:var(--bg)}
.btn--solid:hover{background:#fff;color:var(--bg)}
.chip{display:inline-block;padding:3px 7px;border:1px solid var(--line-strong);border-radius:2px;font-family:var(--mono);font-size:12px;line-height:1.4}
.chip:hover{border-color:var(--accent);text-decoration:none}
.badge{display:inline-block;margin-left:8px;padding:1px 6px;border-radius:2px;background:var(--ink-2);color:var(--bg);font-family:var(--mono);font-size:11px;vertical-align:1px}

/* footer */
.site-footer{display:flex;flex-wrap:wrap;gap:24px 64px;margin-top:80px;padding:40px 0 64px;border-top:1px solid var(--line);font-size:15px;color:var(--ink-2)}
.site-footer address{font-style:normal}

/* ---- Papers page --------------------------------------------------------- */
.hist{padding:32px 0 8px}
.hist__head{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;min-height:44px}
.hist__scroll{overflow-x:auto}
.hist__bars{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(30px,1fr);gap:6px;align-items:end;height:150px;margin-top:12px}
.bar{display:flex;flex-direction:column;justify-content:flex-end;gap:6px;height:100%;padding:0;border:0;background:transparent;cursor:pointer;color:var(--muted);font-family:var(--mono);font-size:12px;text-align:center}
.bar__fill{display:block;background:var(--bar);border-radius:1px;min-height:1px}
.bar:hover .bar__fill{background:var(--ink-2)}
.hist.has-year .bar .bar__fill{background:var(--bar-dim)}
.bar[aria-pressed="true"]{color:#fff}
.hist.has-year .bar[aria-pressed="true"] .bar__fill{background:var(--accent)}

.controls{display:flex;flex-wrap:wrap;gap:12px;align-items:center;padding:24px 0;border-bottom:1px solid var(--line)}
.search{flex:1 1 420px;min-width:0;height:48px;padding:0 16px;border:1px solid var(--line-strong);border-radius:2px;background:var(--bg-raised);color:var(--ink);font-size:16px}
.search::placeholder{color:var(--faint)}
.search:focus{border-color:var(--accent);outline:none}
.count{margin-top:16px;font-family:var(--mono);font-size:13px;color:var(--muted)}

.ptable{list-style:none;margin:8px 0 0;padding:0}
.ptable__head,.prow{display:grid;grid-template-columns:56px minmax(0,1fr) 190px 64px 176px 44px;gap:16px}
.ptable__head{padding:10px 0;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.pitem{border-bottom:1px solid var(--line-soft)}
.pitem.is-open{background:var(--bg-row)}
.pitem:target{box-shadow:inset 3px 0 0 var(--accent)}
.prow{align-items:start;padding:14px 0}
.prow__n,.prow__y{font-family:var(--mono);font-size:13px;color:var(--faint);padding-top:2px}
.prow__y{color:var(--ink-2)}
.prow__title{color:var(--ink-strong);font-size:16px;font-weight:500}
.prow__with{color:var(--muted);font-size:14px;margin-top:2px}
.prow__venue{font-size:14px;color:var(--ink-2);font-style:italic}
.prow__links{display:flex;flex-wrap:wrap;gap:6px}
.prow__toggle{width:44px;height:44px;margin-top:-10px;border:0;background:transparent;color:var(--ink);cursor:pointer;font-size:22px;line-height:1;border-radius:2px}
.prow__toggle:hover{background:rgba(255,255,255,.06)}
.pdetail{display:grid;grid-template-columns:56px minmax(0,1fr) 232px;gap:16px;padding:0 0 22px}
.pdetail__ab{color:var(--ink-2);font-size:15px;line-height:1.65;max-width:760px}
.pdetail pre{margin:16px 0 0;padding:14px 16px;background:var(--bg-raised);border:1px solid var(--line);border-radius:2px;color:var(--ink-soft);font-size:12px;line-height:1.55;white-space:pre-wrap;overflow-wrap:anywhere}
.pdetail__side{display:flex;flex-wrap:wrap;gap:8px;align-content:flex-start}
.empty{padding:40px 0;color:var(--muted)}
mjx-container{color:inherit}

@media (max-width:820px){
  .ptable__head{display:none}
  .prow{grid-template-columns:auto 1fr 44px;grid-template-areas:"n y t" "title title title" "venue venue venue" "links links links";gap:4px 12px}
  .prow__n{grid-area:n}.prow__y{grid-area:y}.prow__main{grid-area:title}.prow__venue{grid-area:venue}.prow__links{grid-area:links;margin-top:6px}.prow__tcell{grid-area:t;justify-self:end}
  .prow__toggle{margin-top:-12px}
  .pdetail{grid-template-columns:1fr;padding-top:4px}
  .pdetail>span:first-child{display:none}
}

/* ---- Teaching ------------------------------------------------------------ */
.inst{padding-top:56px}
.course{display:grid;grid-template-columns:150px minmax(0,1fr);gap:8px 32px;padding:22px 0;border-bottom:1px solid var(--line-soft)}
.course__when{font-family:var(--mono);font-size:13px;color:var(--muted);padding-top:3px}
.course h3{font-size:19px;font-weight:500;color:var(--ink-strong)}
.course__role{font-size:14px;color:var(--muted);margin-top:2px}
.course__body{margin-top:10px;color:var(--ink-2);max-width:760px}
.course__links{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.award{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:14px;color:var(--ink)}
.award::before{content:"";width:8px;height:8px;background:var(--accent);border-radius:50%}
@media (max-width:640px){.course{grid-template-columns:1fr}}

/* ---- Software / Perseus / course pages ----------------------------------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(320px,100%),1fr));gap:1px;background:var(--line);border:1px solid var(--line);margin-top:40px}
.card{background:var(--bg);padding:32px;display:flex;flex-direction:column;gap:14px}
.card h2{font-size:30px;font-weight:300;color:#fff}
.card__sub{font-family:var(--mono);font-size:13px;color:var(--muted)}
.card p{color:var(--ink-soft)}
.card__actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:8px}

.doc{display:flex;flex-wrap:wrap;gap:40px 56px;align-items:flex-start;padding-top:48px}
.toc{flex:1 1 220px;max-width:260px;position:sticky;top:24px;font-size:14px}
.toc ol{list-style:none;margin:10px 0 0;padding:0;border-left:1px solid var(--line)}
.toc li a{display:block;padding:6px 0 6px 14px;color:var(--ink-2)}
.toc li a:hover{color:#fff;text-decoration:none}
.toc li ol{margin:0;border:0}
.toc li li a{padding-left:28px;color:var(--muted);font-size:13px}
.doc__body{flex:999 1 560px;min-width:0}
.doc__body>section{padding-bottom:40px;margin-bottom:40px;border-bottom:1px solid var(--line)}
.doc__body>section:last-child{border-bottom:0}
.doc__body h2{font-size:30px;font-weight:300;color:#fff;margin-bottom:18px}
@media (max-width:900px){.toc{position:static;max-width:none;flex-basis:100%}.toc li li{display:none}}

pre.cmd,.cmd{display:block;margin:0;padding:12px 16px;background:var(--bg-raised);border:1px solid var(--line);border-radius:2px;color:var(--ink-strong);font-size:14px;overflow-x:auto;white-space:pre-wrap;overflow-wrap:anywhere}
code{font-size:.92em;color:var(--ink-strong);background:var(--bg-raised);padding:1px 5px;border-radius:2px}
pre code{background:none;padding:0}
.example{border:1px solid var(--line);border-radius:2px;overflow:hidden}
.example__head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:10px 16px;background:var(--bg-raised);border-bottom:1px solid var(--line);font-family:var(--mono);font-size:13px}
.example table{width:100%;border-collapse:collapse;margin:8px 0 12px;font-size:14px}
.example th{width:1%;font-family:var(--mono);font-weight:400;color:var(--ink-strong);white-space:nowrap;text-align:left;vertical-align:top;padding:3px 20px 3px 16px}
.example td{color:var(--ink-2);padding:3px 16px 3px 0}
@media (max-width:560px){.example th{white-space:normal;padding-right:12px}}
.keys{display:grid;grid-template-columns:minmax(0,max-content) minmax(0,1fr);gap:8px 20px;margin:0;font-size:15px}
.keys dt code{color:var(--accent)}
.keys dd{margin:0;color:var(--ink-2)}
.callout{padding:14px 18px;border:1px solid var(--line-strong);border-radius:2px;background:var(--bg-raised);color:var(--ink-soft)}
.callout strong{color:#fff}
.downloads{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(200px,100%),1fr));gap:8px}
.download{display:flex;flex-direction:column;gap:2px;padding:16px;border:1px solid var(--line-strong);border-radius:2px;color:var(--ink)}
.download:hover{border-color:var(--accent);text-decoration:none;color:#fff}
.download b{font-weight:500;font-size:16px}
.download span{font-family:var(--mono);font-size:12px;color:var(--muted)}
figure{margin:0}
figure img{display:block;border:1px solid var(--line);border-radius:2px;background:#fff}
figcaption{margin-top:8px;font-size:14px;color:var(--muted)}
.cite{overflow-wrap:anywhere;padding:14px 18px;border-left:2px solid var(--accent);background:var(--bg-raised);color:var(--ink-soft)}

.weeks{width:100%;border-collapse:collapse;font-size:15px}
.weeks th,.weeks td{text-align:left;padding:12px 12px 12px 0;border-bottom:1px solid var(--line-soft);vertical-align:baseline}
.weeks th{font-family:var(--mono);font-size:12px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);border-bottom-color:var(--line)}
.weeks td:first-child{font-family:var(--mono);color:var(--muted);width:80px}
.weeks td.links{white-space:nowrap}

/* ---- Small screens ------------------------------------------------------- */
@media (max-width:640px){
  :root{--gutter:16px}
  .hero__title h1{font-size:40px}
  .hero__title{padding-top:40px}
  .card{padding:24px}
  .keys{grid-template-columns:minmax(0,1fr);gap:2px}
  .keys dd{margin-bottom:10px}
  .home-intro{padding:56px 0 48px}
  .home-intro h1{font-size:60px}
  .home-intro p{font-size:18px}
  .row{grid-template-columns:40px minmax(0,1fr)}
  .row__meta{grid-column:2;text-align:left}
  .nav a{padding:10px 10px}
}

/* ---- Print --------------------------------------------------------------- */
@media print{
  :root{--bg:#fff;--ink:#000;--ink-strong:#000;--ink-soft:#111;--ink-2:#222;--muted:#444;--faint:#555;--line:#ccc;--line-soft:#ddd;--accent:#0b3d91;color-scheme:light}
  .hero__img,.hero__scrim,.nav,.hist,.controls,.prow__toggle,.toc,.skip{display:none!important}
  .hero{background:none}.hero__title h1,.home-intro h1,.brand,.card h2,.doc__body h2{color:#000}
  .hero__inner{min-height:0}
}