/* =====================================================================
   Site styles, navy and gold.
   Design system: docs/Personal Site Kit.html. Deep navy for the ground,
   gold for the one thing to notice, blue only for the soft glow.
   ===================================================================== */

:root{
  --navy-900:#0A1328; --navy-800:#10204A; --navy-700:#1B3466;
  --ink:#E8ECF5; --muted:#A3AEC8; --line:rgba(255,255,255,.10); --card:rgba(255,255,255,.035);
  --gold:#F2C811; --gold-light:#FFE785; --gold-deep:#D98A00; --blue:#5B8BF0;
  --sans:"Figtree","Segoe UI",system-ui,sans-serif; --mono:"IBM Plex Mono",Consolas,monospace;
  --topbar-h:65px;               /* app.js keeps this in step with the real bar height */
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--navy-900);color:var(--ink);font:17px/1.6 var(--sans);
  background-image:radial-gradient(circle at 2px 2px,rgba(255,255,255,.055) 1.4px,transparent 0);background-size:28px 28px}
a{color:inherit}
img{max-width:100%}
p{margin:0}
[hidden]{display:none!important}
.wrap{max-width:1440px;margin:0 auto;padding-inline:24px}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:4px}
.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-link{position:absolute;left:16px;top:-60px;z-index:30;background:var(--gold);color:var(--navy-900);font-weight:700;padding:10px 14px;border-radius:8px;text-decoration:none}
.skip-link:focus{top:12px}
.svg-defs{position:absolute;width:0;height:0}

/* ---------- type ---------- */
h1,h2{font-weight:800;text-wrap:balance}
h1{font-size:clamp(42px,6vw,70px);line-height:1.03;margin:16px 0 20px;letter-spacing:-.02em}
h1 .hl{background:linear-gradient(180deg,var(--gold-light),var(--gold));-webkit-background-clip:text;background-clip:text;color:transparent}
h2{font-size:clamp(28px,3.4vw,40px);line-height:1.15;margin:8px 0 28px;letter-spacing:-.01em}
h3{font-size:20px;line-height:1.3;margin:0 0 6px;font-weight:700;text-wrap:balance}
.eyebrow{font:500 13px/1.4 var(--mono);letter-spacing:.22em;text-transform:uppercase;color:var(--gold)}
.lead{font-size:20px;color:var(--muted);max-width:36ch}
.muted{color:var(--muted)}
.muted a{color:var(--gold-light)}
code{font:500 .86em/1.4 var(--mono);background:var(--navy-700);border-radius:4px;padding:1px 5px}

/* ---------- top bar: name and RSS ---------- */
.topbar{position:sticky;top:0;z-index:10;background:rgba(10,19,40,.84);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;font-size:17px;white-space:nowrap}
.brand svg{width:28px;height:28px;flex:none}
.topbar-rss{flex:none;display:grid;place-items:center;width:38px;height:38px;border-radius:8px;color:var(--muted)}
.topbar-rss:hover{color:var(--gold);background:var(--card)}
.topbar-rss svg{width:20px;height:20px}
.topbar-icons{flex:none;display:flex;align-items:center;gap:2px}
@media (max-width:640px){.topbar-social{display:none}}
.topnav{margin-left:auto;display:flex;gap:2px}
.topnav a{font:500 12px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;text-decoration:none;color:var(--muted);padding:10px 12px;border-radius:8px}
.topnav a:hover{color:var(--ink);background:var(--card)}
.topnav a[aria-current]{color:var(--gold)}
@media (max-width:480px){
  .topbar .wrap{gap:8px}
  .topnav a{padding:10px 8px;letter-spacing:.08em}
}

/* ---------- buttons, cards ---------- */
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.btn{display:inline-flex;align-items:center;gap:8px;font:700 16px/1.2 var(--sans);text-decoration:none;padding:13px 20px;border-radius:8px;border:0;cursor:pointer;white-space:nowrap}
.btn.primary{background:var(--gold);color:var(--navy-900)}
.btn.primary:hover{background:var(--gold-light)}
.btn.ghost{background:transparent;border:1.5px solid rgba(242,200,17,.5);color:var(--gold-light)}
.btn.ghost:hover{background:rgba(242,200,17,.08)}

/* ---------- glow and page head ---------- */
.hero{position:relative;overflow:hidden;padding-block:84px 64px}
.hero .wrap{position:relative}
.hero::before,.page-head::before{content:"";position:absolute;width:900px;height:700px;right:-200px;top:-120px;
  background:radial-gradient(closest-side,rgba(91,139,240,.30),transparent);pointer-events:none}
.page-glow{position:absolute;top:-140px;right:0;width:min(760px,100%);height:600px;z-index:-1;pointer-events:none;
  background:radial-gradient(closest-side,rgba(91,139,240,.24),transparent)}

.page-head{position:relative;overflow:hidden;padding-block:36px 30px;border-bottom:1px solid var(--line)}
.page-head .wrap{position:relative}
.page-head h1{font-size:clamp(26px,3.1vw,34px);line-height:1.15;margin:8px 0 6px;letter-spacing:-.015em}
.page-head .lead{font-size:17px;max-width:none}

/* ---------- layout: navigation | content | contents ---------- */
.blog-layout{display:grid;grid-template-columns:230px minmax(0,1fr) 230px;gap:56px;align-items:start;padding-block:36px 72px}
.blog-main,.post-column{grid-column:2;grid-row:1;min-width:0}
.sidebar--nav{grid-column:1;grid-row:1}
.sidebar--aside{grid-column:3;grid-row:1}
.blog-main{scroll-margin-top:calc(var(--topbar-h) + 20px)}
.post-column{width:100%;max-width:760px;justify-self:center}
.blog-layout--post{padding-top:0}

.sidebar{display:grid;gap:32px;align-content:start}
.sidebar,.sidebar > *{min-width:0}
/* on posts both side columns stay in view while reading; one taller than the screen scrolls on its own */
.blog-layout--post > .sidebar{position:sticky;top:calc(var(--topbar-h) + 28px);max-height:calc(100vh - var(--topbar-h) - 56px);overflow:auto;
  margin:48px -4px 0;padding:2px 4px 8px;scrollbar-width:thin;scrollbar-color:transparent transparent}
.blog-layout--post > .sidebar:hover{scrollbar-color:var(--navy-700) transparent}
.side-title{font:500 12px/1.4 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--gold);margin:0 0 10px}
.side-count{font:500 12px/1 var(--mono);color:var(--muted)}

/* lists in the sidebar (topics, archive, contents) share one look: a thin rail, gold for "you are here" */
.side-list,.post-toc-list{list-style:none;margin:0;padding:0;border-left:1px solid var(--line)}
.side-list a,.post-toc-link{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-left:-1px;padding:5px 0 5px 12px;
  border-left:2px solid transparent;color:var(--muted);text-decoration:none;font-size:14.5px;line-height:1.4}
.side-list a:hover,.post-toc-link:hover{color:var(--ink)}
.side-list a[aria-current],.post-toc-link--active{color:var(--gold-light);border-left-color:var(--gold)}
.side-list a[aria-current] .side-count{color:var(--gold-light)}
.post-toc-link--l3{padding-left:24px;font-size:13.5px}

.side-archive details{border-top:1px solid var(--line);padding:10px 0 8px}
.side-archive details:first-child{border-top:0;padding-top:0}
.side-archive summary{display:flex;align-items:center;gap:10px;cursor:pointer;list-style:none;font-weight:700;font-size:16px;padding:2px 0}
.side-archive summary::-webkit-details-marker{display:none}
.side-archive summary::before{content:"";width:6px;height:6px;margin-left:2px;border-right:1.7px solid var(--muted);border-bottom:1.7px solid var(--muted);transform:rotate(-45deg);transition:transform .15s}
.side-archive details[open] > summary::before{transform:rotate(45deg)}
.side-archive summary .side-count{margin-left:auto}
.archive-month{font:500 11px/1.4 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:12px 0 4px}
.side-archive .side-list a{font-size:14px}

.side-note h3{font-size:15px;line-height:1.35;margin:0 0 4px}
.side-note p{font-size:14.5px;line-height:1.6;color:var(--muted)}
.side-note a{color:var(--gold-light)}
.side-note code{font-size:.8em}
.side-note + .side-note{margin-top:18px;padding-top:18px;border-top:1px solid var(--line)}

.search{position:relative;display:flex;align-items:center}
.search svg{position:absolute;left:13px;width:18px;height:18px;color:var(--muted);pointer-events:none}
.search input{width:100%;font:400 16px/1.4 var(--sans);color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px 12px 10px 40px}
.search input::placeholder{color:var(--muted)}
.search input:hover{border-color:rgba(255,255,255,.2)}
.search input:focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:10px}

/* ---------- article list ---------- */
.results-bar{display:flex;flex-wrap:wrap;align-items:center;gap:6px 16px;margin-bottom:6px;
  font:500 12px/1.5 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.linkbtn{background:none;border:0;padding:4px 0;font:inherit;letter-spacing:inherit;text-transform:inherit;color:var(--gold-light);cursor:pointer;text-decoration:underline;text-underline-offset:4px}
.loadmore{display:flex;justify-content:center;margin-top:32px}

.post-item{position:relative;display:grid;gap:8px;padding:26px 0;border-bottom:1px solid var(--line)}
.post-item-title{font-size:22px;line-height:1.3;margin:0;letter-spacing:-.005em}
.post-item-title a{text-decoration:none}
.post-item-title a::after{content:"";position:absolute;inset:0}  /* the whole entry is the link */
.post-item:hover .post-item-title a{color:var(--gold-light)}
@supports selector(:has(*)){
  .post-item-title a:focus-visible{outline:none}
  .post-item:has(a:focus-visible){outline:2px solid var(--gold);outline-offset:6px;border-radius:6px}
}
.post-item-excerpt{color:var(--muted);font-size:16.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-item-foot{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:6px 16px}
.post-item-tags{font:500 13px/1.5 var(--mono);color:var(--muted)}
.read-more{font-weight:700;font-size:15px;color:var(--gold-light)}

.post-item--lead{padding-top:20px;gap:10px}
.post-item--lead .post-item-title{font-size:clamp(26px,3vw,32px);line-height:1.18;font-weight:800;letter-spacing:-.015em}
.post-item--lead .post-item-excerpt{font-size:18px;color:var(--ink);opacity:.86;-webkit-line-clamp:4}

/* meta line: DATE · TOPIC · 5 MIN READ */
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:4px 10px;font:500 12px/1.5 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.post-meta > :not(.flag) + *::before{content:"·";margin-right:10px;color:var(--muted)}
.post-meta .cat{color:var(--gold)}
.post-meta .flag{color:var(--gold-light);font-weight:700}
.post-meta .flag::after{content:"—";margin-left:10px;color:var(--muted);font-weight:500}
.post-meta .ai{color:var(--gold-light)}

.empty{background:var(--card);border:1px dashed var(--line);border-radius:12px;padding:28px;margin-top:20px;color:var(--muted)}
.empty strong{color:var(--ink)}
/* nothing published yet: search, topics and archive have nothing to offer */
.no-posts .sidebar--nav,.no-posts .results-bar{display:none}
.empty a,.empty button{color:var(--gold-light)}

/* ---------- post page ---------- */
.reading-progress{position:fixed;left:0;right:0;top:var(--topbar-h);height:3px;z-index:11;pointer-events:none}
.reading-progress-bar{height:100%;background:linear-gradient(90deg,var(--gold-deep),var(--gold),var(--gold-light));transform-origin:0 50%;transform:scaleX(0)}

.post-head{padding-block:48px 32px;margin-bottom:40px;border-bottom:1px solid var(--line)}
.backlink{display:inline-flex;align-items:center;gap:8px;margin-bottom:28px;font:500 12px/1.4 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--muted);text-decoration:none}
.backlink:hover{color:var(--gold-light)}
.post-title{font-size:clamp(34px,4.2vw,48px);line-height:1.08;margin:14px 0 18px;letter-spacing:-.02em}
.post-tags{display:flex;flex-wrap:wrap;gap:4px 16px;font:500 13px/1.6 var(--mono)}
.post-tags a{color:var(--muted);text-decoration:none}
.post-tags a:hover{color:var(--gold-light);text-decoration:underline;text-underline-offset:4px}
.ai-note{margin-top:22px;padding:12px 16px;border:1px solid rgba(242,200,17,.35);border-radius:10px;background:rgba(242,200,17,.06);font-size:15px}
.ai-note a{color:var(--gold-light)}

.post-skeleton{display:grid;gap:14px}
.post-skeleton span{display:block;height:14px;border-radius:7px;background:rgba(255,255,255,.07);animation:pulse 1.6s ease-in-out infinite}
.post-skeleton span:nth-child(3n+2){width:86%}
.post-skeleton span:nth-child(4n){width:62%}
.post-skeleton .gap{height:10px;background:none;animation:none}
@keyframes pulse{50%{opacity:.55}}

.post-nav{margin-top:56px;padding-top:40px;border-top:1px solid var(--line)}
.post-nav h2{font:500 13px/1.4 var(--mono);letter-spacing:.22em;text-transform:uppercase;color:var(--gold);margin:0 0 18px}
.post-nav-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.navcard{display:grid;gap:8px;align-content:start;padding:22px 24px;border:1px solid var(--line);border-radius:12px;background:var(--card);text-decoration:none;
  transition:border-color .2s ease}
.navcard:hover{border-color:rgba(242,200,17,.4)}
.navcard--older{grid-column:2;text-align:right}
.navcard-label{font:500 12px/1.4 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--gold)}
.navcard-title{font-size:19px;line-height:1.3;font-weight:700}
.navcard:hover .navcard-title{color:var(--gold-light)}
.navcard-meta{font:500 12px/1.4 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}

/* ---------- article prose ---------- */
.prose{min-width:0;font-size:18px;line-height:1.75}
.prose > :first-child{margin-top:0}
.prose p,.prose ul,.prose ol,.prose blockquote,.prose table,.prose figure,.prose .code-block,.prose > pre{margin:0 0 1.3em}
.prose h2,.prose h3,.prose h4{scroll-margin-top:calc(var(--topbar-h) + 24px)}
.prose h2{font-size:clamp(25px,2.6vw,31px);line-height:1.2;margin:2em 0 .65em;letter-spacing:-.01em}
.prose h3{font-size:21px;line-height:1.3;margin:1.7em 0 .5em}
.prose h4{font-size:18px;margin:1.5em 0 .4em}
.prose a{color:var(--gold-light);text-decoration:underline;text-decoration-color:rgba(242,200,17,.45);text-decoration-thickness:1px;text-underline-offset:3px}
.prose a:hover{text-decoration-color:var(--gold)}
.prose strong{color:#fff;font-weight:700}
.prose ul,.prose ol{padding-left:1.4em}
.prose li{margin:.4em 0}
.prose li > p{margin:0 0 .5em}
.prose li::marker{color:var(--gold)}
.prose blockquote{padding:4px 0 4px 20px;border-left:3px solid var(--gold);color:var(--muted)}
.prose blockquote p{margin:0 0 .6em}
.prose blockquote > :last-child{margin-bottom:0}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.6em 0}
.prose img{display:block;height:auto;border-radius:12px;border:1px solid var(--line)}
.prose table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;font-size:16px}
.prose th,.prose td{padding:10px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.prose th{font:500 12px/1.5 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);border-bottom-color:rgba(255,255,255,.2)}
.prose :not(pre) > code{font:500 .84em/1.4 var(--mono);background:var(--navy-700);border:1px solid var(--line);border-radius:5px;padding:.12em .4em;overflow-wrap:anywhere}
/* file names in tables stay whole; the cell wraps between them instead */
.prose td code{overflow-wrap:normal;white-space:nowrap}

/* code blocks: post.js wraps each <pre> in .code-block with a language label and a copy button */
.prose pre{margin:0;padding:16px 18px;overflow:auto;font:400 14.5px/1.6 var(--mono);tab-size:2;background:var(--navy-800);border:1px solid var(--line);border-radius:12px;
  scrollbar-width:thin;scrollbar-color:var(--navy-700) transparent}
.prose pre:focus-visible{outline-offset:-2px}
.prose pre code{font:inherit;background:none;border:0;padding:0;color:var(--ink)}
.code-block{border:1px solid var(--line);border-radius:12px;background:var(--navy-800);overflow:hidden}
.code-block pre{border:0;border-radius:0}
.code-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:40px;padding:5px 6px 5px 16px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.03)}
.code-lang{font:500 12px/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.code-lang--dax{color:var(--gold)}
.code-copy{font:600 13px/1 var(--sans);color:var(--gold-light);background:transparent;border:1px solid rgba(242,200,17,.35);border-radius:6px;padding:7px 10px;cursor:pointer}
.code-copy:hover{background:rgba(242,200,17,.1)}
.code-copy.is-done{color:var(--navy-900);background:var(--gold);border-color:var(--gold)}

/* DAX highlighting (dist/dax-highlight). Token colours kept from the original site. */
.prose pre code.code-dax{color:rgba(240,245,255,.94)}
.code-dax .dax-k{color:#8ab4ff;font-weight:700}
.code-dax .dax-f{color:#7fd1ff;font-weight:700}
.code-dax .dax-v{color:#f7c97a;font-weight:700}
.code-dax .dax-m{color:#c4b5fd}
.code-dax .dax-r{color:#b6e3a7}
.code-dax .dax-s{color:#f5a97f}
.code-dax .dax-c{color:rgba(255,255,255,.60);font-style:italic}
.code-dax .dax-n{color:#f9d976}

/* ---------- Gold Layer Shorts: the gallery, and a short inside its article ---------- */
.short-frame{position:relative;aspect-ratio:9/16;border-radius:14px;overflow:hidden;background:var(--navy-800);border:1px solid var(--line)}
.short-frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;margin:0;border:0;border-radius:0}
.short-play{position:absolute;inset:0;display:grid;place-items:center;width:100%;border:0;padding:0;cursor:pointer;
  background:linear-gradient(180deg,rgba(10,19,40,0) 55%,rgba(10,19,40,.55))}
.short-play-icon{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:var(--gold);color:var(--navy-900);
  box-shadow:0 8px 28px rgba(0,0,0,.4);transition:transform .15s,background .15s}
.short-play-icon svg{width:24px;height:24px;margin-left:3px;fill:currentColor}
.short-play:hover .short-play-icon{transform:scale(1.07);background:var(--gold-light)}
.short-play:focus-visible{outline:2px solid var(--gold);outline-offset:-5px;border-radius:14px}
.short-dur{position:absolute;right:10px;bottom:10px;font:500 11px/1 var(--mono);color:var(--ink);background:rgba(10,19,40,.82);padding:5px 7px;border-radius:6px;pointer-events:none}
.short-kicker{font:500 11px/1.4 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin:0}
.short-summary{font-size:14.5px;line-height:1.55;color:var(--muted);margin:0}
.short-link{font-size:14px;font-weight:700;color:var(--gold);text-decoration:none}
.short-link:hover{color:var(--gold-light)}

.shorts-wrap{padding-block:28px 72px}
.shorts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:36px 24px;margin-top:14px}
.short-card{display:flex;flex-direction:column;gap:10px;scroll-margin-top:calc(var(--topbar-h) + 20px)}
.short-card .short-frame{margin-bottom:4px}
.short-title{font-size:17px;font-weight:700;line-height:1.3;margin:0}
.short-card.is-target .short-frame{outline:2px solid var(--gold);outline-offset:4px}
.shorts-grid > .empty{grid-column:1/-1}

/* inside an article: a card after the opening paragraph */
.prose .post-short{display:grid;grid-template-columns:190px minmax(0,1fr);gap:24px;align-items:center;margin:0 0 1.6em;padding:16px;
  border:1px solid var(--line);border-radius:16px;background:var(--card)}
.prose .post-short p{margin:0}
.post-short-text{display:flex;flex-direction:column;gap:8px}
.prose .post-short-title{font-size:19px;font-weight:700;line-height:1.3;color:var(--ink)}
.prose .post-short .short-link{text-decoration:none;color:var(--gold)}
@media (max-width:560px){
  .prose .post-short{grid-template-columns:minmax(0,1fr)}
  .prose .post-short .short-frame{width:min(260px,100%)}
}

/* the player: full window, the clip as tall as the window allows, controls underneath it */
html:has(dialog.short-player[open]){overflow:hidden}
.short-player{--sp-h:min(calc(100dvh - 112px), calc((100vw - 32px) * 16 / 9));
  width:100vw;height:100dvh;max-width:none;max-height:none;margin:0;padding:24px 16px;border:0;
  background:rgba(6,12,28,.96);color:var(--ink);overflow:auto}
.short-player::backdrop{background:rgba(6,12,28,.6)}
.short-player[open]{display:grid;justify-content:center;align-content:center;align-items:center;gap:16px 28px;
  grid-template-columns:48px auto minmax(0,320px) 48px;grid-template-areas:"prev main info next"}
.sp-main{grid-area:main;width:calc(var(--sp-h) * 9 / 16);display:flex;flex-direction:column;gap:10px}
.sp-frame{position:relative;height:var(--sp-h);border-radius:14px;overflow:hidden;background:#000;border:1px solid var(--line)}
.sp-frame video{width:100%;height:100%;display:block;object-fit:contain;cursor:pointer}
.sp-big{position:absolute;left:50%;top:50%;width:76px;height:76px;margin:-38px 0 0 -38px;border-radius:50%;border:0;cursor:pointer;
  display:grid;place-items:center;background:var(--gold);color:var(--navy-900);box-shadow:0 10px 32px rgba(0,0,0,.45)}
.sp-big[hidden]{display:none}
.sp-big svg{width:32px;height:32px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.sp-big:hover{background:var(--gold-light)}
.sp-bar{display:flex;align-items:center;gap:6px}
.sp-btn{flex:none;width:40px;height:40px;display:grid;place-items:center;border-radius:10px;border:1px solid transparent;
  background:transparent;color:var(--ink);cursor:pointer}
.sp-btn svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.sp-btn:hover{background:var(--card);color:var(--gold)}
.sp-btn:disabled{opacity:.3;cursor:default;background:transparent;color:var(--ink)}
.sp-btn[hidden]{display:none}
.sp-btn:focus-visible,.sp-big:focus-visible,.sp-seek:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.sp-seek{flex:1;min-width:0;accent-color:var(--gold);height:4px;cursor:pointer}
.sp-time{flex:none;font:500 12px/1 var(--mono);color:var(--muted);min-width:76px;text-align:center}
.sp-nav{grid-area:prev;width:48px;height:48px;border-color:var(--line);border-radius:50%}
.sp-next{grid-area:next}
.sp-close{position:absolute;top:14px;right:14px;border-color:var(--line)}
.sp-info{grid-area:info;display:flex;flex-direction:column;gap:10px;max-width:320px}
.sp-title{font-size:24px;line-height:1.25;margin:0}
.sp-info .short-summary{font-size:16px}
.sp-keys{font:500 11px/1.6 var(--mono);color:var(--muted);opacity:.7;margin:10px 0 0}
@media (max-width:900px){
  .short-player{--sp-h:min(calc(100dvh - 190px), calc((100vw - 32px) * 16 / 9));padding:56px 16px 24px}
  .short-player[open]{grid-template-columns:auto auto;grid-template-areas:"main main" "prev next" "info info";
    justify-content:center;align-content:start;gap:12px}
  .sp-nav{justify-self:start}
  .sp-next{justify-self:end}
  .sp-info{max-width:calc(var(--sp-h) * 9 / 16)}
  .sp-keys{display:none}
}

@media (prefers-reduced-motion:reduce){
  .short-play-icon{transition:none}
}

/* ---------- footer, back to top ---------- */
.site-footer{padding-block:36px;color:var(--muted);font-size:14px;border-top:1px solid var(--line)}
.site-footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 24px}
.site-footer nav{display:flex;flex-wrap:wrap;gap:6px 20px}
.site-footer a{text-decoration:none}
.site-footer a:hover{color:var(--gold-light)}

.back-to-top{position:fixed;right:20px;bottom:20px;z-index:9;width:44px;height:44px;border-radius:50%;display:grid;place-items:center;cursor:pointer;
  background:var(--navy-700);color:var(--gold);border:1px solid rgba(242,200,17,.35);
  opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s,transform .2s,visibility .2s}
.back-to-top.is-visible{opacity:1;visibility:visible;transform:none}
.back-to-top:hover{background:var(--navy-800);color:var(--gold-light)}
.back-to-top svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 404 ---------- */
.notfound{min-height:calc(100vh - var(--topbar-h) - 110px);display:grid;align-content:center}

/* ---------- responsive ---------- */
/* below 1200px the right column goes: posts lose "On this page", the home page's notes drop under the list */
@media (max-width:1200px){
  .blog-layout{grid-template-columns:220px minmax(0,1fr);gap:48px}
  .sidebar--aside{grid-column:2;grid-row:2}
  .blog-layout--post > .sidebar--aside{display:none}
  .blog-layout--home .sidebar--aside{margin-top:44px;padding-top:32px;border-top:1px solid var(--line)}
}
@media (max-width:900px){
  .blog-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .blog-main,.post-column,.sidebar--nav,.sidebar--aside{grid-column:1;grid-row:auto}
  .post-column{max-width:none}
  .blog-layout--post > .sidebar{position:static;max-height:none;overflow:visible;margin:0;padding:0}
  /* home: search and a row of topics sit above the list; the list is already in date order */
  .blog-layout--home .sidebar--nav{order:-1;gap:14px;margin-bottom:22px}
  .blog-layout--home .side-archive,.blog-layout--home .side-topics .side-title{display:none}
  .blog-layout--home .sidebar--nav .side-list{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;border-left:0;padding:2px}
  .blog-layout--home .sidebar--nav .side-list::-webkit-scrollbar{display:none}
  .blog-layout--home .sidebar--nav .side-list a{flex:none;margin:0;padding:6px 10px;border:0;gap:8px;white-space:nowrap}
  .blog-layout--home .sidebar--nav .side-list a[aria-current]{text-decoration:underline;text-decoration-color:var(--gold);text-decoration-thickness:2px;text-underline-offset:7px}
  /* post: search, topics and archive follow the article */
  .blog-layout--post > .sidebar--nav{margin-top:56px;padding-top:32px;border-top:1px solid var(--line)}
}
@media (max-width:640px){
  .wrap{padding-inline:20px}
  .page-head{padding-block:28px 24px}
  .post-head{padding-block:32px 28px}
  .prose{font-size:17px}
  .post-item-title{font-size:20px}
  .post-nav-grid{grid-template-columns:1fr}
  .navcard--older{grid-column:auto;text-align:left}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .navcard,.back-to-top,.side-archive summary::before{transition:none}
  .post-skeleton span{animation:none}
}

/* Home sidebar: the channel trailer, linked to YouTube (no embed, so no third-party load) */
.trailer{display:flex;flex-direction:column;gap:6px;margin-top:4px;text-decoration:none;color:var(--ink)}
.trailer:focus-visible{outline:2px solid var(--gold);outline-offset:4px;border-radius:10px}
.trailer-poster{position:relative;display:block;width:100%;aspect-ratio:16/9;border-radius:10px;overflow:hidden;
  border:1px solid var(--line);background:var(--navy-800);transition:border-color .15s}
.trailer:hover .trailer-poster{border-color:rgba(242,200,17,.55)}
.trailer-poster img{display:block;width:100%;height:100%;object-fit:cover}
.trailer-play{position:absolute;inset:0;margin:auto;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  background:var(--gold);color:var(--navy-900);box-shadow:0 4px 14px rgba(0,0,0,.35);transition:transform .15s}
.trailer-play svg{width:20px;height:20px;margin-left:2px}
.trailer:hover .trailer-play{transform:scale(1.08)}
.trailer-time{position:absolute;right:6px;bottom:6px;font:500 11px/1 var(--mono);padding:3px 5px;border-radius:4px;background:rgba(10,19,40,.85);color:var(--ink)}
.trailer-title,.side-note .trailer-title{font-weight:700;font-size:14.5px;line-height:1.35;margin-top:4px;color:var(--ink)}
.trailer-cta{font-size:14px;color:var(--gold-light)}
.trailer:hover .trailer-cta{text-decoration:underline;text-underline-offset:3px}
@media (max-width:900px){.trailer{max-width:420px}}
@media (prefers-reduced-motion:reduce){.trailer-poster,.trailer-play{transition:none}.trailer:hover .trailer-play{transform:none}}