/* MacBrains Labs home page (v15: one typeface, tone steps instead of rules). Inner pages use /styles.css.
   System fonts only, no external assets. Notch rules below are unchanged from v14. */
:root{--ground:#0d0f0f;--ink:#efede5;--muted:#b7bdb2;--quiet:#9da696;--orange:#ff633a;--orange-hi:#ff805c;--rust:#a9371b;--panel:#151a18;--field:#192017;--paper:#e4e5df;--sheet:#f4f5f4;--step:#eaebe5;--paper-ink:#1b1f1a;--paper-muted:#4a5246;--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;/* taste-skill-ignore: code and real tool output only */--sans:-apple-system,BlinkMacSystemFont,"Helvetica Neue",Helvetica,Arial,sans-serif;--display:clamp(52px,6vw,84px);--h2:clamp(40px,3.5vw,52px);--h3:32px;--lead:22px;--body:17px;--small:14px;--ease:cubic-bezier(.2,.7,.2,1)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:28px}
body{margin:0;background:var(--ground);color:var(--ink);font:var(--body)/1.6 var(--sans);-webkit-font-smoothing:antialiased;overflow-wrap:break-word;font-variant-numeric:tabular-nums}
a{color:inherit;text-decoration:none}
a,summary{-webkit-tap-highlight-color:transparent}
a:focus-visible,summary:focus-visible{outline:2px solid var(--orange);outline-offset:5px}
.paper-section a:focus-visible{outline-color:var(--rust)}
::selection{background:var(--orange);color:var(--ground)}
code{font-family:var(--mono);font-size:inherit}
.shell{max-width:1260px;margin:auto;padding-inline:54px}
.skip{position:absolute;top:-100px;left:20px;z-index:5;background:var(--ink);color:var(--ground);padding:16px}
.skip:focus{top:12px}

/* Header */
.header{display:flex;justify-content:space-between;align-items:center;gap:24px;padding-block:28px}
.brand{display:flex;align-items:center;gap:12px;white-space:nowrap;font-size:22px;font-weight:600;letter-spacing:-.02em}
.brand img{object-fit:contain;clip-path:polygon(18% 30%,19% 22%,23% 14%,30% 7%,40% 3.5%,88% 3.5%,100% 5%,100% 100%,30% 100%,24% 95%,20% 88%,18% 78%)}
.brand b{font-weight:400;color:var(--muted)}
.nav{display:flex;flex-wrap:wrap;gap:4px 28px;font-size:var(--small);font-weight:600}
.nav a{padding:12px 0;color:var(--muted);transition:color .2s}
.nav a:hover,.quiet-link:hover{color:var(--orange)}

/* Opening */
.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:32px;align-items:center;padding-top:24px;padding-bottom:72px}
.hero-copy{padding-bottom:24px}
h1{font-size:var(--display);letter-spacing:-.045em;line-height:.98;font-weight:600;margin:0 0 32px;max-width:9.5em}
.lede{font-size:var(--lead);line-height:1.4;letter-spacing:-.01em;margin:0 0 18px;max-width:24em}
.intro{font-size:var(--body);line-height:1.6;max-width:30em;color:var(--ink);margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:28px;align-items:center;margin-top:36px}
.button{font:600 var(--body)/1.2 var(--sans);display:inline-flex;align-items:center;justify-content:center;padding:16px 24px;min-height:52px;transition:transform .2s var(--ease),background-color .2s}
.button:hover{transform:translateY(-2px)}
.button:active{transform:translateY(1px)}
.orange{background:var(--orange);color:#131613}
.orange:hover{background:var(--orange-hi)}
.quiet-link{font-size:var(--body);font-weight:500;text-decoration:underline;text-decoration-color:var(--quiet);text-underline-offset:6px;transition:color .2s}
.intro-entry{font-size:var(--small);color:var(--muted);margin:24px 0 0}
.intro-entry a{color:var(--ink);text-decoration:underline;text-decoration-color:var(--quiet);text-underline-offset:4px;transition:color .2s}
.intro-entry a:hover{color:var(--orange)}
.notch-stage{margin:0;min-width:0}
.notch-frame{position:relative;background:var(--ground);width:100%;line-height:0}
.notch-video,.notch-still{display:block;width:100%;height:auto;aspect-ratio:1350/1890;background:var(--ground)}
.notch-video{position:relative;z-index:1;pointer-events:none}
.notch-video::-webkit-media-controls,.notch-video::-webkit-media-controls-start-playback-button{display:none!important;-webkit-appearance:none}
.notch-frame .notch-still{display:none}
.notch-loop{position:absolute;left:0;top:0;z-index:0;width:100%;height:auto;aspect-ratio:1350/1890;pointer-events:none}
.notch-loop::-webkit-media-controls,.notch-loop::-webkit-media-controls-start-playback-button{display:none!important;-webkit-appearance:none}
.notch-frame.is-looping .notch-video{visibility:hidden}
.notch-sway{position:absolute;left:36.7407%;top:15.6614%;width:20.7407%;height:66.8783%;display:block}
.notch-frame.is-fallback .notch-video,.notch-frame.is-fallback .notch-loop{display:none}
.notch-frame.is-fallback .notch-still{display:block}
.notch-anim{position:absolute;left:0;top:0;z-index:2;width:100%;height:auto;aspect-ratio:1350/1890;opacity:0;pointer-events:none;background:var(--ground)}
.notch-frame.is-anim .notch-anim{opacity:1}
.notch-stage figcaption{padding-top:16px}
.notch-caption{color:var(--muted);font-size:var(--small);line-height:1.5}

/* Findings */
.paper-section{background:var(--paper);color:var(--paper-ink);padding-block:140px 160px}
.research-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:80px;align-items:start}
.research-layout>*,.method-section>*,.record-grid>*,.about-grid>*{min-width:0}
.research-index{position:sticky;top:40px}
h2{font-weight:600;font-size:var(--h2);letter-spacing:-.035em;line-height:1.04;margin:0 0 24px}
.research-index>p{font-size:var(--lead);line-height:1.4;color:var(--paper-ink);margin:0;max-width:16em}
.research-index nav{margin-top:40px;display:grid;gap:4px}
.research-index nav a{padding:10px 0;font-size:var(--body);font-weight:600;color:var(--rust);transition:transform .2s var(--ease)}
.research-index nav a:hover{transform:translateX(6px)}
.research-index .index-note{font-size:var(--small);line-height:1.6;color:var(--paper-muted);margin-top:32px;max-width:22em}
.folio{background:var(--sheet);padding:44px 48px 40px;scroll-margin-top:28px}
.folio+.folio{margin-top:40px}
.topic{font-size:var(--small);font-weight:600;line-height:1.5;margin:0 0 14px;color:var(--rust)}
h3{font-size:var(--h3);font-weight:600;line-height:1.1;letter-spacing:-.03em;margin:0 0 16px}
.folio-intro{font-size:var(--body);line-height:1.6;color:var(--paper-ink);max-width:30em;margin:0}
.placement-numbers{display:grid;grid-template-columns:1.2fr 1fr;gap:32px;margin:36px 0 24px}
.placement-numbers strong{font-size:60px;line-height:1;letter-spacing:-.04em;font-weight:600;display:block}
.placement-numbers>div:first-child strong{color:var(--rust)}
.placement-numbers span{display:block;margin-top:10px;font-size:var(--small);line-height:1.4;color:var(--paper-muted)}
.ledger-figure{margin:0}
.ledger{display:block;width:100%;height:auto}
.ledger-narrow{display:none}
.c-ane{fill:var(--rust)}
.c-cpu{fill:#3f4b38}
.bar-label{display:flex;justify-content:space-between;gap:12px;font-size:var(--small);margin-top:10px;color:var(--paper-muted)}
.bar-label code{font-size:.92em}
.finding{margin-top:36px}
.finding-h,.limit-h,.hyp-h{font-size:var(--small);font-weight:600;line-height:1.4;margin:0;color:var(--paper-ink)}
.finding p:not(.finding-h){font-size:var(--body);line-height:1.6;margin:8px 0 0}
.limit{padding:20px 24px;background:var(--step);margin:24px 0 28px}
.limit p:not(.limit-h){font-size:var(--body);line-height:1.6;margin:6px 0 0;color:var(--paper-ink)}
.source-link{display:inline-block;font-size:var(--body);font-weight:600;text-decoration:underline;text-decoration-color:#c99a8b;text-underline-offset:6px;transition:color .2s}
.source-link:hover{color:var(--rust)}
.chain-diagram{margin:32px 0;display:grid;gap:12px;font-size:var(--small);font-weight:600}
.chain-diagram>div:first-child{display:flex;gap:8px;align-items:center}
.chain-node{background:#dfe6d8;color:#2c3a26;padding:12px 18px}
.chain-ellipsis{color:var(--paper-muted)}
.chain-result{display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--step);padding:14px 18px}
.chain-result strong{font-size:var(--small);color:var(--rust)}
.hypothesis{margin:32px 0 0;padding:24px;background:var(--step)}
.hypothesis p:not(.hyp-h){font-size:22px;line-height:1.35;letter-spacing:-.01em;margin:6px 0 20px}
.hypothesis p:last-child{margin-bottom:0}
.hypothesis s{font-size:var(--lead);color:var(--paper-muted);text-decoration-color:var(--rust)}

/* Real tool output and source, shown as the interface it is */
.fragment{margin:36px 0 0;background:#11150f;color:#e6eadf}
.fragment-bar{font-size:var(--small);font-weight:600;color:#c8d0bf;background:#1d2419;padding:10px 18px}
.fragment pre{margin:0;padding:18px;font:var(--small)/1.6 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere}
.fragment figcaption{background:var(--sheet);color:var(--paper-ink);font-size:var(--small);line-height:1.55;padding:14px 0 0}
.fragment figcaption a{font-weight:600;text-decoration:underline;text-underline-offset:4px}
.fragment-dark{margin-top:48px;background:var(--panel)}
.fragment-dark .fragment-bar{background:#1c2320}
.fragment-dark figcaption{background:none;color:var(--muted)}
.fragment-dark figcaption a{color:var(--ink)}

/* Method */
.method-section{padding-block:160px;display:grid;grid-template-columns:1fr 1.1fr;gap:80px}
.section-heading>p:last-child{font-size:var(--lead);line-height:1.4;color:var(--ink);max-width:17em;margin:0}
.method-list{display:grid;gap:4px}
details{transition:background-color .25s}
details[open]{background:var(--panel)}
summary{list-style:none;display:flex;align-items:center;gap:18px;padding:24px 28px;font-size:var(--lead);font-weight:600;letter-spacing:-.01em;cursor:pointer;transition:color .2s}
summary:hover{color:var(--orange)}
summary::-webkit-details-marker{display:none}
summary i{margin-left:auto;font-style:normal;font-weight:400;font-size:var(--lead);color:var(--orange);transition:transform .25s var(--ease)}
details[open] summary i{transform:rotate(45deg)}
details>div{padding:0 28px 28px;font-size:var(--body);line-height:1.6;color:var(--ink)}
details>div p{margin:0}
details a{display:inline-block;color:var(--ink);font-size:var(--body);font-weight:600;text-decoration:underline;text-decoration-color:var(--quiet);text-underline-offset:5px;margin-top:14px}
details a:hover{color:var(--orange)}

/* Notebook */
.record-section{background:#111413;padding-block:160px}
.record-head{display:grid;grid-template-columns:1fr 1.1fr;gap:80px;align-items:end;margin-bottom:64px}
.record-head h2{margin:0}
.record-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}
.list-h{font-size:var(--small);font-weight:600;color:var(--muted);margin:0 0 8px}
.notes{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.notes a{display:grid;grid-template-columns:72px 1fr;gap:4px 18px;padding:18px 0;transition:transform .2s var(--ease)}
.notes a:hover{transform:translateX(6px)}
.notes a:hover h3{color:var(--orange)}
.notes .id{font-size:var(--small);font-weight:600;line-height:1.6;color:var(--orange)}
.notes h3{font-size:var(--lead);font-weight:600;letter-spacing:-.01em;line-height:1.3;margin:0 0 6px;transition:color .2s}
.notes p{font-size:var(--small);line-height:1.55;color:var(--muted);margin:0 0 4px}
.notes .tags{grid-column:2;font-size:var(--small);color:var(--quiet)}
.list-more{margin:24px 0 0;font-size:var(--body);color:var(--muted)}
.more{font-weight:600;color:var(--ink);text-decoration:underline;text-decoration-color:var(--quiet);text-underline-offset:5px;transition:color .2s}
.more:hover{color:var(--orange)}

/* About */
.about-section{background:var(--field);padding-block:140px}
.about-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:80px;align-items:start}
.about-copy{font-size:var(--body);line-height:1.65;color:var(--ink)}
.about-copy p{margin:0 0 18px}
.about-copy p a{color:var(--ink);text-decoration:underline;text-decoration-color:#7c8c70;text-underline-offset:4px}
.about-copy p a:hover{color:var(--orange)}
.outline{background:#2a3524;color:var(--ink);margin-top:32px}
.outline:hover{background:#34412d}

/* Footer */
.footer{padding-block:96px 40px}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:40px}
.footer .brand{font-size:22px}
.footer-grid .motto{font-size:var(--lead);line-height:1.4;color:var(--ink);margin:20px 0 0;max-width:14em}
.footer-grid p,.footer-grid li{font-size:var(--small);line-height:1.6;color:var(--muted)}
.foot-h{font-size:var(--small);font-weight:600;color:var(--ink)!important;margin:0 0 10px}
.footer-mail{font-size:var(--body);font-weight:600;color:var(--ink);text-decoration:underline;text-decoration-color:var(--quiet);text-underline-offset:5px}
.footer-grid ul{list-style:none;margin:0;padding:0}
.footer-grid li a{display:inline-flex;align-items:center;min-height:30px;transition:color .2s}
.footer-grid li a:hover,.footer-mail:hover{color:var(--orange)}
.footer-fine{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;margin-top:72px;color:var(--quiet);font-size:var(--small)}

/* Motion: content is always visible without it. */
@keyframes rise{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@keyframes here{0%,100%{color:var(--rust);transform:none}8%,92%{color:var(--paper-ink);transform:translateX(12px)}}
@keyframes lift{from{transform:translateY(32px)}to{transform:none}}
@media(prefers-reduced-motion:no-preference){
.hero-copy>*{animation:rise .7s var(--ease) both}
.hero-copy>:nth-child(2){animation-delay:.08s}
.hero-copy>:nth-child(3){animation-delay:.16s}
.hero-copy>:nth-child(4){animation-delay:.24s}
.hero-copy>:nth-child(5){animation-delay:.32s}
.notch-stage figcaption{animation:rise .7s .4s var(--ease) both}
@supports(animation-timeline:view()){
.paper-section{timeline-scope:--f-place,--f-parity,--f-perf}
#placement{view-timeline-name:--f-place}#parity{view-timeline-name:--f-parity}#performance{view-timeline-name:--f-perf}
.research-index nav a{animation:here linear both;animation-range:cover 25% cover 75%}
.research-index nav a[href="#placement"]{animation-timeline:--f-place}.research-index nav a[href="#parity"]{animation-timeline:--f-parity}.research-index nav a[href="#performance"]{animation-timeline:--f-perf}
.research-index,.folio,.section-heading,.record-grid>div,.method-list details,.notes li,.about-grid>div,.footer-grid>div{animation:lift linear both;animation-timeline:view();animation-range:entry 0% entry 70%}
}
}

@media(max-width:1000px){
.shell{padding-inline:32px}
.header{flex-direction:column;align-items:flex-start;gap:8px}
.hero{gap:16px}
.research-layout,.method-section,.record-grid,.about-grid{gap:48px}
.research-layout{grid-template-columns:.65fr 1.35fr}
.folio{padding:32px}
.hero-actions{gap:20px}
}
@media(max-width:700px){
.shell{padding-inline:22px}
.header{padding-block:14px 10px}
.brand img{width:36px;height:36px}
.nav{gap:2px 22px;width:100%}
.nav a{padding:10px 0 6px}
.hero{grid-template-columns:1fr;padding-top:14px;padding-bottom:48px;gap:4px}
.hero-copy{padding-bottom:0}
h1{margin:0 0 16px}
.lede{margin-bottom:12px}
.hero-actions{margin-top:24px}
.intro-entry{margin-top:14px}
.notch-frame{max-width:390px;margin:auto}
.notch-stage figcaption{max-width:390px;margin:auto}
.paper-section{padding-block:96px}
.research-layout,.method-section,.record-head,.record-grid,.about-grid,.footer-grid{display:block}
.record-head h2{margin-bottom:20px}
.record-grid>div+div{margin-top:56px}
.research-index{position:static}
.research-index nav{margin:28px 0 40px}
.research-index .index-note{display:none}
.folio{padding:28px 22px;margin-inline:-6px}
.folio+.folio{margin-top:24px}
.placement-numbers{gap:20px}
.placement-numbers strong{font-size:48px}
.ledger-wide{display:none}
.ledger-narrow{display:block;max-width:330px}
.bar-label{flex-direction:column}
.limit{padding:18px}
.hypothesis{padding:20px}
.method-section,.record-section,.about-section{padding-block:96px}
.section-heading{margin-bottom:32px}
summary{padding:20px}
details>div{padding:0 20px 24px}
.notes a{grid-template-columns:1fr}
.notes .tags{grid-column:1}
.footer-grid>div+div{margin-top:32px}
}
@media(max-width:480px){
.nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2px 10px}
.nav a{min-height:36px}
}
@media(max-width:360px){
.button{padding:14px 18px}
.placement-numbers strong{font-size:40px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.notch-frame .notch-video{display:none}.notch-frame .notch-still{display:block}.notch-loop,.notch-sway,.notch-anim{display:none!important}*{animation:none!important;transition:none!important}}
@media print{.notch-stage,.hero-actions{display:none}.research-index{position:static}.folio{break-inside:avoid}body{background:white;color:black}.paper-section{padding:20px 0}.research-layout{display:block}}