/* Astro Build Standards — doc site */
:root{
  --bg:#fbfbfa; --bg-raised:#fff; --bg-sunken:#f2f2f0; --border:#e3e2df; --border-strong:#cfceca;
  --fg:#22211f; --fg-muted:#5f5d58; --fg-subtle:#8a8781; --accent:#2f6f4f; --accent-soft:#e6f0ea;
  --shadow:0 1px 2px rgba(0,0,0,.05),0 8px 24px -16px rgba(0,0,0,.18);
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
  --sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Inter,sans-serif;
  --sidebar:16.5rem; --toc:15rem; --topbar:3.25rem;
}
@media (prefers-color-scheme:dark){
  :root[data-theme="auto"]{
    --bg:#141513; --bg-raised:#1c1d1b; --bg-sunken:#101110; --border:#2c2e2b; --border-strong:#3d403c;
    --fg:#e9e8e4; --fg-muted:#a5a49e; --fg-subtle:#78776f; --accent:#7fc39c; --accent-soft:#1e2b24;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px -16px rgba(0,0,0,.8);
  }
}
:root[data-theme="dark"]{
  --bg:#141513; --bg-raised:#1c1d1b; --bg-sunken:#101110; --border:#2c2e2b; --border-strong:#3d403c;
  --fg:#e9e8e4; --fg-muted:#a5a49e; --fg-subtle:#78776f; --accent:#7fc39c; --accent-soft:#1e2b24;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px -16px rgba(0,0,0,.8);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--topbar) + 1rem)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.01ms!important;transition-duration:.01ms!important}}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--sans);font-size:1rem;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-underline-offset:.18em}
a:hover{text-decoration-thickness:2px}
button,summary,a{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:3px}
.skip{position:absolute;left:-9999px;top:0;z-index:100;background:var(--accent);color:#fff;padding:.6rem 1rem;border-radius:0 0 6px 0}
.skip:focus{left:0}

/* topbar */
.topbar{position:sticky;top:0;z-index:40;height:var(--topbar);display:flex;align-items:center;gap:.75rem;
  padding:0 1rem;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.brand{margin-right:auto;text-decoration:none;color:var(--fg);font-size:.95rem;letter-spacing:-.01em}
.brand span{color:var(--fg-subtle);font-family:var(--mono);font-size:.75rem;text-transform:uppercase;letter-spacing:.08em}
.theme-btn{background:none;border:1px solid var(--border);color:var(--fg-muted);width:2rem;height:2rem;border-radius:6px;font-size:.9rem;line-height:1}
.theme-btn:hover{border-color:var(--border-strong);color:var(--fg)}
.menu-btn{display:none;flex-direction:column;justify-content:center;gap:4px;width:2rem;height:2rem;background:none;border:1px solid var(--border);border-radius:6px;padding:0 .35rem}
.menu-btn span{display:block;height:1.5px;background:var(--fg-muted);border-radius:2px}

/* shell */
.shell{display:grid;grid-template-columns:var(--sidebar) minmax(0,1fr) var(--toc);gap:0;max-width:96rem;margin:0 auto}
@media (max-width:1180px){.shell{grid-template-columns:var(--sidebar) minmax(0,1fr)} .toc{display:none}}
@media (max-width:860px){
  .shell{grid-template-columns:minmax(0,1fr)}
  .menu-btn{display:flex}
  .sidebar{position:fixed;inset:var(--topbar) auto 0 0;width:min(20rem,84vw);z-index:35;background:var(--bg-raised);
    transform:translateX(-102%);transition:transform .2s ease;box-shadow:var(--shadow);border-right:1px solid var(--border)}
  .sidebar.open{transform:none}
}

/* sidebar */
.sidebar{position:sticky;top:var(--topbar);align-self:start;height:calc(100dvh - var(--topbar));overflow-y:auto;
  padding:1.25rem 1rem 3rem;border-right:1px solid var(--border)}
.search input{width:100%;padding:.45rem .65rem;font:inherit;font-size:.875rem;color:var(--fg);
  background:var(--bg-sunken);border:1px solid var(--border);border-radius:7px}
.search input::placeholder{color:var(--fg-subtle)}
.nav-group{margin-top:1.5rem}
.nav-group h2{margin:0 0 .4rem;font-family:var(--mono);font-size:.68rem;font-weight:600;text-transform:uppercase;
  letter-spacing:.1em;color:var(--fg-subtle)}
.nav-group ul{list-style:none;margin:0;padding:0}
.nav-group li a{display:block;padding:.3rem .55rem;margin-left:-.55rem;border-radius:6px;font-size:.9rem;
  color:var(--fg-muted);text-decoration:none;border-left:2px solid transparent}
.nav-group li a:hover{background:var(--bg-sunken);color:var(--fg)}
.nav-group li a[aria-current="page"]{background:var(--accent-soft);color:var(--fg);font-weight:600}
.nav-group[hidden],.nav-group li[hidden]{display:none}

/* toc */
.toc{position:sticky;top:var(--topbar);align-self:start;height:calc(100dvh - var(--topbar));overflow-y:auto;padding:1.75rem 1rem 3rem}
.toc h2{margin:0 0 .5rem;font-family:var(--mono);font-size:.68rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--fg-subtle)}
.toc ul{list-style:none;margin:0;padding:0;border-left:1px solid var(--border)}
.toc li a{display:block;padding:.22rem 0 .22rem .75rem;margin-left:-1px;border-left:2px solid transparent;
  font-size:.82rem;line-height:1.4;color:var(--fg-muted);text-decoration:none}
.toc li.d3 a{padding-left:1.5rem;font-size:.78rem}
.toc li a:hover{color:var(--fg)}
.toc li a.active{color:var(--accent);border-left-color:var(--accent);font-weight:600}

/* content */
.content{min-width:0;padding:2.25rem clamp(1rem,4vw,3rem) 6rem}
.prose{max-width:52rem}
.prose>*:first-child{margin-top:0}
.prose h1,.prose h2,.prose h3,.prose h4{line-height:1.25;letter-spacing:-.015em;scroll-margin-top:calc(var(--topbar) + 1rem)}
.prose h1,.prose .page-title{font-size:clamp(1.9rem,1.4rem + 1.6vw,2.5rem);margin:0 0 .75rem;padding:0;border:0}
.prose h2{font-size:1.5rem;margin:2.75rem 0 .75rem;padding-bottom:.4rem;border-bottom:1px solid var(--border)}
.prose h3{font-size:1.15rem;margin:2rem 0 .5rem}
.prose h4{font-size:1rem;margin:1.5rem 0 .4rem;color:var(--fg-muted)}
.prose p,.prose ul,.prose ol{margin:0 0 1rem}
.prose li{margin:.3rem 0}
.prose li>ul,.prose li>ol{margin:.3rem 0}
.prose hr{border:0;border-top:1px solid var(--border);margin:2.5rem 0}
.prose strong{font-weight:650;color:var(--fg)}
.anchor{margin-left:.4rem;color:var(--fg-subtle);opacity:0;text-decoration:none;font-weight:400}
h1:hover .anchor,h2:hover .anchor,h3:hover .anchor,h4:hover .anchor,.anchor:focus{opacity:1}

.prose blockquote{margin:1.25rem 0;padding:.85rem 1.1rem;background:var(--accent-soft);
  border-left:3px solid var(--accent);border-radius:0 7px 7px 0;color:var(--fg)}
.prose blockquote>*:last-child{margin-bottom:0}

/* inline code */
.prose :not(pre)>code{font-family:var(--mono);font-size:.86em;padding:.12em .38em;background:var(--bg-sunken);
  border:1px solid var(--border);border-radius:5px;word-break:break-word}

/* code blocks */
.codeblock{margin:1.25rem 0;border:1px solid var(--border);border-radius:9px;overflow:hidden;background:var(--bg-raised)}
.codeblock figcaption{display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:.3rem .5rem .3rem .8rem;background:var(--bg-sunken);border-bottom:1px solid var(--border)}
.codeblock .lang{font-family:var(--mono);font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;color:var(--fg-subtle)}
.codeblock .copy{font:inherit;font-size:.72rem;padding:.2rem .5rem;border:1px solid var(--border);border-radius:5px;
  background:var(--bg-raised);color:var(--fg-muted)}
.codeblock .copy:hover{color:var(--fg);border-color:var(--border-strong)}
.codeblock pre{margin:0;padding:.9rem 1rem;overflow-x:auto;font-size:.82rem;line-height:1.6;background:var(--bg-raised)!important}
.codeblock code{font-family:var(--mono);display:block;background:none}
.codeblock pre.plain code{color:var(--fg-muted);border:0;padding:0;font-size:1em}
.shiki,.shiki span{color:var(--s-light);background-color:transparent}
:root[data-theme="dark"] .shiki,:root[data-theme="dark"] .shiki span{color:var(--s-dark)}
@media (prefers-color-scheme:dark){
  :root[data-theme="auto"] .shiki,:root[data-theme="auto"] .shiki span{color:var(--s-dark)}
}

/* tables */
.table-wrap{overflow-x:auto;margin:1.25rem 0;border:1px solid var(--border);border-radius:9px}
.prose table{border-collapse:collapse;width:100%;font-size:.88rem}
.prose th,.prose td{padding:.55rem .8rem;text-align:left;vertical-align:top;border-bottom:1px solid var(--border)}
.prose thead th{background:var(--bg-sunken);font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;
  color:var(--fg-muted);white-space:nowrap}
.prose tbody tr:last-child td{border-bottom:0}
.prose tbody tr:hover{background:var(--bg-sunken)}

/* rule meta */
.rule-meta{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;margin:-.35rem 0 1rem}
.rule-id{font-family:var(--mono);font-size:.74rem;color:var(--fg-subtle);background:none!important;border:0!important;padding:0!important}
.tier{font-family:var(--mono);font-size:.65rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;
  padding:.15rem .45rem;border-radius:999px;border:1px solid var(--border-strong);color:var(--fg-muted)}
.tier-required{background:#fdecec;border-color:#f0b8b8;color:#9a2222}
.tier-default{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}
:root[data-theme="dark"] .tier-required{background:#3a1c1c;border-color:#6b3030;color:#f2a8a8}
@media (prefers-color-scheme:dark){:root[data-theme="auto"] .tier-required{background:#3a1c1c;border-color:#6b3030;color:#f2a8a8}}

.ref-out{color:var(--fg-muted);border-bottom:1px dotted var(--border-strong);cursor:help}

/* task lists — tickable, state kept per page */
.prose .contains-task-list{list-style:none;padding-left:.2rem}
.prose .task-list-item{margin:.45rem 0}
.prose .task-list-item input{margin:0 .55rem 0 0;vertical-align:-.1em;accent-color:var(--accent);width:1rem;height:1rem}
.prose .task-list-item:has(input:checked){color:var(--fg-subtle)}
.reset-checks{font:inherit;font-size:.78rem;padding:.25rem .6rem;margin-bottom:1rem;border:1px solid var(--border);
  border-radius:6px;background:var(--bg-raised);color:var(--fg-muted)}
.reset-checks:hover{color:var(--fg);border-color:var(--border-strong)}

/* home */
.home-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(15rem,1fr));gap:.75rem;margin:1rem 0 2rem}
.home-card{display:block;padding:.9rem 1rem;background:var(--bg-raised);border:1px solid var(--border);
  border-radius:9px;text-decoration:none;color:var(--fg);transition:border-color .15s,transform .15s}
.home-card:hover{border-color:var(--accent);transform:translateY(-1px)}
.home-card strong{display:block;font-size:.95rem;margin-bottom:.2rem}
.home-card span{display:block;font-size:.82rem;color:var(--fg-muted);line-height:1.45}
.home-section{margin:2.25rem 0 0}
.home-section>h2{font-size:1.15rem;margin:0 0 .2rem;border:0;padding:0}
.home-section>p.note{margin:0 0 .6rem;color:var(--fg-muted);font-size:.88rem}
.lede{font-size:1.1rem;color:var(--fg-muted);margin-bottom:1.5rem}
.meta-note{font-size:.85rem;color:var(--fg-subtle);border-top:1px solid var(--border);padding-top:1rem;margin-top:3rem}