:root{--bg:#ffffff;--fg:#252827;--muted:#626964;--line:#dce1dd;--card:#f7f8f7;--accent:#275b45;--accent2:#ac4638;--radius:4px}
@media (prefers-color-scheme:dark){:root{--bg:#191c1a;--fg:#eef1ee;--muted:#b2bab4;--line:#3a413b;--card:#202521}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;line-height:1.7}
a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:var(--accent2)}
.wrap{max-width:1000px;margin:0 auto;padding:0 22px}
header.site{border-bottom:1px solid var(--line);background:var(--card)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:66px}
.brand{display:flex;align-items:center;gap:10px;color:var(--fg);text-decoration:none;font:600 1.2rem/1.25 "Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;font-size:1.25rem;letter-spacing:0}
.brand svg{width:30px;height:30px}nav.main a{color:var(--muted);text-decoration:none;margin-left:20px;font-size:.95rem}nav.main a:hover,nav.main a.on{color:var(--fg)}
.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:center;padding:56px 0 40px}
.hero h1{font:600 1.2rem/1.25 "Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;font-size:clamp(2rem,4vw,2.9rem);line-height:1.15;margin:0 0 14px}.hero p{color:var(--muted);font-size:1.08rem;margin:0 0 20px}
.hero .art{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--card)}.hero .art svg{display:block;width:100%;height:auto}
.btn{display:inline-block;padding:9px 16px;border-radius:999px;background:var(--accent);color:#fff;text-decoration:none;font-size:.95rem}.btn:hover{color:#fff;filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--fg);border:1px solid var(--line);margin-left:8px}
h2.sec{font:600 1.2rem/1.25 "Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;font-size:1.35rem;margin:34px 0 16px;display:flex;justify-content:space-between;align-items:baseline}h2.sec a{font:inherit;font-size:.9rem;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px 20px 16px;display:flex;flex-direction:column;transition:transform .15s}.card:hover{transform:translateY(-2px)}
.card h3{margin:6px 0 8px;font:600 1.2rem/1.25 "Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;font-size:1.12rem;line-height:1.35}.card h3 a{color:var(--fg);text-decoration:none}.card p{color:var(--muted);margin:0 0 12px;font-size:.95rem}
.meta{color:var(--muted);font-size:.85rem}.tag{display:inline-block;font-size:.78rem;padding:2px 9px;border-radius:999px;background:color-mix(in srgb,var(--accent) 12%,transparent);color:var(--accent);margin:0 6px 6px 0;text-decoration:none}
.feature{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--card)}.feature .txt{padding:26px}.feature svg{width:100%;height:100%;display:block}
article.post{max-width:720px;margin:0 auto;padding:42px 0 20px}article.post h1{font:600 1.2rem/1.25 "Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;font-size:clamp(1.8rem,3.4vw,2.4rem);line-height:1.2;margin:10px 0}
article.post .lead{font-size:1.12rem;color:var(--muted)}article.post h2{font:600 1.2rem/1.25 "Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;font-size:1.3rem;margin:30px 0 8px}
article.post table{border-collapse:collapse;width:100%;margin:14px 0;font-size:.95rem}article.post th,article.post td{border-bottom:1px solid var(--line);padding:7px 8px;text-align:left}
article.post pre{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:14px;overflow:auto;font:13.5px/1.55 ui-monospace,SFMono-Regular,Menlo,monospace}
article.post code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em}article.post blockquote{margin:18px 0;padding:6px 18px;border-left:3px solid var(--accent);color:var(--muted)}
article.post .figure{margin:22px 0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}article.post .figure svg{display:block;width:100%;height:auto}
.postnav{display:flex;justify-content:space-between;gap:16px;max-width:720px;margin:28px auto 0;padding-top:18px;border-top:1px solid var(--line);font-size:.95rem}
.archive li{list-style:none;padding:8px 0;border-bottom:1px dashed var(--line);display:flex;justify-content:space-between;gap:12px}.archive ul{padding:0}
.about{max-width:720px;margin:0 auto;padding:42px 0}.about h1{font:600 1.2rem/1.25 "Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;font-size:2rem}
footer.site{margin-top:56px;border-top:1px solid var(--line);background:var(--card)}footer.site .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:22px;color:var(--muted);font-size:.88rem}footer.site a{color:var(--muted)}
.newsletter{margin-top:34px;padding:22px;border:1px dashed var(--line);border-radius:var(--radius);display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
@media (max-width:760px){.hero,.feature{grid-template-columns:1fr}nav.main a{margin-left:12px}}
:root{--d-bg:#191c1a;--d-fg:#eef1ee;--d-muted:#b2bab4;--d-line:#3a413b;--d-card:#202521;--headf:600 1.2rem/1.25 "Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif}html[data-theme=light]{--bg:#ffffff;--fg:#252827;--muted:#626964;--line:#dce1dd;--card:#f7f8f7}
/* ---- interactions & motion ---- */
.topbar-tools{display:flex;align-items:center;gap:6px;margin-left:14px}
.iconbtn{background:none;border:1px solid var(--line);color:var(--muted);border-radius:999px;width:34px;height:34px;display:inline-grid;place-items:center;cursor:pointer;transition:all .2s}
.iconbtn:hover{color:var(--fg);border-color:var(--accent);transform:rotate(-8deg)}
html[data-theme=dark]{--bg:var(--d-bg);--fg:var(--d-fg);--muted:var(--d-muted);--line:var(--d-line);--card:var(--d-card)}
html[data-theme=light]{color-scheme:light}
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--accent),var(--accent2));z-index:50;transition:width .1s}
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 16px}
.chip{border:1px solid var(--line);background:var(--card);color:var(--muted);border-radius:999px;padding:5px 12px;font-size:.85rem;cursor:pointer;transition:all .2s}
.chip:hover{border-color:var(--accent);color:var(--fg)}.chip.on{background:var(--accent);border-color:var(--accent);color:#fff}
.card.hide{display:none}.card{will-change:transform}
.totop{position:fixed;right:22px;bottom:22px;opacity:0;pointer-events:none;transition:opacity .3s,transform .3s;transform:translateY(10px)}
.totop.show{opacity:1;pointer-events:auto;transform:none}
.toc{position:sticky;top:18px;float:right;width:200px;margin:0 -240px 0 20px;font-size:.85rem;border-left:2px solid var(--line);padding-left:12px}
.toc a{display:block;color:var(--muted);text-decoration:none;padding:3px 0}.toc a.on{color:var(--accent);font-weight:600}
@media (max-width:1180px){.toc{display:none}}
pre{position:relative}.copybtn{position:absolute;top:8px;right:8px;font-size:.75rem;padding:3px 8px;border-radius:6px;border:1px solid var(--line);background:var(--bg);color:var(--muted);cursor:pointer;opacity:.0;transition:opacity .2s}
pre:hover .copybtn{opacity:1}
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(20px);background:var(--fg);color:var(--bg);padding:8px 16px;border-radius:999px;font-size:.88rem;opacity:0;transition:all .3s;z-index:60}
.toast.show{opacity:1;transform:translateX(-50%)}
.search-box{width:100%;font:inherit;font-size:1.05rem;padding:12px 16px;border-radius:var(--radius);border:1px solid var(--line);background:var(--card);color:var(--fg);outline:none}
.search-box:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 20%,transparent)}
.results .card{margin-top:12px}.results mark{background:color-mix(in srgb,var(--accent) 25%,transparent);color:inherit;border-radius:3px}
.hero .art{position:relative}.hero h1 .typed::after{content:"▍";margin-left:2px;animation:blink 1s steps(1) infinite;color:var(--accent)}
@keyframes blink{50%{opacity:0}}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@keyframes drift{from{transform:translateX(-60px)}to{transform:translateX(660px)}}
@keyframes pulse{0%,100%{opacity:.85;transform:scale(1)}50%{opacity:1;transform:scale(1.06)}}
@keyframes rise{0%{transform:translateY(0);opacity:0}20%{opacity:.8}100%{transform:translateY(-70px);opacity:0}}
@keyframes ledblink{0%,100%{opacity:1}50%{opacity:.25}}
@keyframes keydown{0%,100%{transform:translateY(0)}50%{transform:translateY(5px)}}
@keyframes tilt{0%,100%{transform:rotate(-8deg)}50%{transform:rotate(-4deg)}}
.fx-float{animation:floaty 5s ease-in-out infinite}.fx-pulse{transform-box:fill-box;transform-origin:center;animation:pulse 4s ease-in-out infinite}
.fx-drift{animation:drift 38s linear infinite}.fx-drift2{animation:drift 55s linear infinite;animation-delay:-20s}
.fx-rise{animation:rise 3.2s ease-out infinite}.fx-rise.d1{animation-delay:1s}.fx-rise.d2{animation-delay:2s}
.fx-led{animation:ledblink 1.6s ease-in-out infinite}.fx-led.d1{animation-delay:.4s}.fx-led.d2{animation-delay:.9s}
.fx-key{transform-box:fill-box;animation:keydown 2.4s ease-in-out infinite}
.fx-tilt{transform-box:fill-box;transform-origin:center;animation:tilt 6s ease-in-out infinite}
.widget{margin-top:34px;padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--card)}
.widget h3{margin:0 0 10px;font:var(--headf);font-size:1.15rem}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}

/* Frame Notes: an unframed notebook, with a compact photographic masthead. */
:root { --coral: #ac4638; }
* { letter-spacing: 0; }
html { color-scheme: light; }
body { overflow-wrap: anywhere; }
header.site, footer.site { background: var(--bg); }
header.site .wrap { min-height: 78px; }
.brand { font-size: 1.4rem; white-space: nowrap; }
.brand svg { flex: 0 0 30px; }
nav.main { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }
nav.main a { margin: 0; font-size: .88rem; }
nav.main a.on { text-decoration: underline; text-decoration-color: var(--coral); text-underline-offset: 8px; }
.topbar-tools { margin-left: 18px; }
.iconbtn { border-radius: 4px; flex: 0 0 36px; width: 36px; height: 36px; }
.iconbtn:hover { transform: none; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.hero { grid-template-columns: 1fr; gap: 24px; padding: 30px 0; }
.hero > div:first-child { display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 10px 18px; }
.hero h1 { grid-column: 1 / -1; font-size: 2.5rem; line-height: 1.15; margin: 0; }
.hero p { max-width: 590px; font-size: 1rem; line-height: 1.65; margin: 0; }
.hero .art { border: 0; border-radius: 0; background: transparent; }
.hero .art img { display: block; width: 100%; height: 230px; object-fit: cover; object-position: center; }
.btn, .btn.ghost { background: transparent; border: 0; border-radius: 0; color: var(--accent); padding: 4px 0; margin: 0; font-size: .85rem; text-decoration: underline; text-underline-offset: 5px; white-space: nowrap; }
.btn:hover, .btn.ghost:hover { color: var(--coral); filter: none; }
.feature { display: block; background: transparent; border: 0; border-top: 2px solid var(--accent); border-bottom: 1px solid var(--line); border-radius: 0; overflow: visible; }
.feature .txt { padding: 22px 0 24px; max-width: 760px; }
.feature > div:last-child { display: none; }
.feature .txt > .meta:first-child { color: var(--coral); font-size: .8rem; }
.feature h3 { font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif; font-weight: 600; line-height: 1.3; }
.feature p { margin: 8px 0 12px; }
.feature .txt > a { font-size: .88rem; }
h2.sec { gap: 14px; font-size: 1.2rem; }
.chips { gap: 6px; padding-bottom: 16px; margin-bottom: 0; border-bottom: 1px solid var(--line); }
.chip { border-radius: 4px; font-size: .8rem; padding: 4px 10px; }
.chip.on { color: var(--bg); }
.grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 34px; }
.card { border: 0; border-bottom: 1px solid var(--line); border-radius: 0; padding: 22px 0 18px; background: transparent; min-width: 0; will-change: auto; }
.card:hover { transform: none; }
.card h3 { font-size: 1.25rem; margin: 6px 0 10px; }
.card h3 a:hover { color: var(--accent); text-decoration: underline; }
.card p { font-size: .94rem; }
.card > div:last-child { margin-top: auto; }
.tag { background: transparent; border-radius: 0; border-bottom: 1px solid var(--line); padding: 0; margin: 0 12px 4px 0; font-size: .76rem; }
.newsletter { padding: 22px 0; border: 0; border-top: 2px solid var(--line); border-bottom: 1px solid var(--line); border-radius: 0; }
.newsletter strong { font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif; font-size: 1.2rem; font-weight: 600; }
.newsletter .meta { margin-top: 4px; }
article.post { max-width: 680px; padding-top: 44px; }
article.post h1 { font-size: 2.25rem; line-height: 1.2; margin: 14px 0 18px; }
article.post h2 { font-size: 1.4rem; }
article.post p, article.post li { font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif; font-size: 1.125rem; line-height: 1.8; }
article.post .lead { font-family: inherit; font-size: 1.05rem; line-height: 1.7; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
article.post p.meta { font-family: inherit; font-size: .85rem; }
article.post th, article.post td { vertical-align: top; overflow-wrap: anywhere; }
.postnav { max-width: 680px; }
.postnav > span { flex: 1; min-width: 0; }
.postnav > span:last-child { text-align: right; }
.about { max-width: 680px; }
.about h1 { line-height: 1.25; }
.archive li { align-items: baseline; }
.archive li .meta { white-space: nowrap; flex-shrink: 0; }
.search-box { border-radius: 4px; font-size: 1rem; }
.results .card { margin-top: 0; }
.toast { border-radius: 4px; }
.toc { float: none; position: static; width: auto; margin: 0 0 26px; }
.progress { background: var(--accent); }
/* Reading remains available with scripts disabled or observers unavailable. */
.reveal { opacity: 1; transform: none; transition: none; }
footer.site { margin-top: 48px; }
footer.site .wrap { font-size: .8rem; }
@media (prefers-color-scheme: dark) {
  html:not([data-theme=light]) { --accent: #9ad1b3; --accent2: #f2a08c; --coral: #f2a08c; color-scheme: dark; }
}
html[data-theme=dark] { --accent: #9ad1b3; --accent2: #f2a08c; --coral: #f2a08c; color-scheme: dark; }
html[data-theme=light] { --accent: #275b45; --accent2: #ac4638; --coral: #ac4638; color-scheme: light; }
@media (max-width: 900px) {
  .hero > div:first-child { grid-template-columns: 1fr auto; }
  .hero p { grid-column: 1 / -1; max-width: 620px; }
  .hero .btn { justify-self: start; }
  .hero .btn.ghost { justify-self: end; }
}
@media (max-width: 760px) {
  header.site .wrap { flex-wrap: wrap; gap: 12px; padding-top: 16px; padding-bottom: 16px; }
  header.site .wrap > div { justify-content: space-between; width: 100%; min-width: 0; }
  nav.main { gap: 14px; }
  nav.main a { margin: 0; font-size: .84rem; }
  .topbar-tools { margin-left: 10px; gap: 5px; }
  .hero { padding-top: 24px; gap: 20px; }
  .hero h1 { font-size: 2.125rem; }
  .hero .art img { height: 200px; }
  .grid { grid-template-columns: minmax(0, 1fr); }
  article.post h1 { font-size: 1.875rem; }
  article.post p, article.post li { font-size: 1.0625rem; }
  .newsletter { gap: 12px; }
  .postnav { font-size: .88rem; }
}
@media (max-width: 360px) {
  .wrap { padding-left: 16px; padding-right: 16px; }
  nav.main { gap: 10px; }
  .iconbtn { width: 32px; height: 32px; flex-basis: 32px; }
  .topbar-tools { margin-left: 6px; }
}