:root{--ink:#08090c;--paper:#f2f0eb;--smoke:#e4e0d8;--ash:#b8b2a7;--coal:#1c1f26;
 --cyan:#00c2d4;--amber:#f59e0b;--crimson:#e53935;--lime:#84cc16;--purple:#7c3aed;
 --page-bg:#f2f0eb;--panel-bg:#e4e0d8;--card-bg:#f8f7f4;--page-fg:#1c1f26;--heading-fg:#1c1f26;
 --muted:#6b6860;--line-1:rgba(0,0,0,.06);--line-2:rgba(0,0,0,.1);--line-3:rgba(0,0,0,.16);
 --wash:rgba(0,0,0,.04);--nav-bg:rgba(242,240,235,.9);--code-bg:#0d0f14;
 /* Accents AS TEXT. The brand colours are tuned to be seen as fills and
    borders; at 9-11px on paper, --lime and --cyan are close to illegible.
    The diagrams already carried a second set for exactly this and kept it
    private, so every page that wanted a coloured label reached for the fill
    colour instead. These are that set, promoted to tokens. */
 --cyan-t:#066c77;--lime-t:#3f6f0c;--amber-t:#8a5806;
 --purple-t:#5b21b6;--crimson-t:#a32b28;}
html[data-theme="dark"]{--page-bg:#0c0e12;--panel-bg:#14161c;--card-bg:#181b22;--page-fg:#e7e5df;
 --heading-fg:#eeece6;--muted:#9a978e;--line-1:rgba(255,255,255,.07);--line-2:rgba(255,255,255,.11);
 --line-3:rgba(255,255,255,.18);--wash:rgba(255,255,255,.05);--nav-bg:rgba(12,14,18,.9);
 --cyan-t:#4dd6e4;--lime-t:#a7e137;--amber-t:#f5b544;
 --purple-t:#b596f5;--crimson-t:#f07570;}
*{margin:0;padding:0;box-sizing:border-box;}
body{background:var(--page-bg);color:var(--page-fg);font-family:'Manrope',system-ui,sans-serif;
 -webkit-font-smoothing:antialiased;line-height:1.65;}
a{color:inherit;}
.wrap{max-width:1000px;margin:0 auto;padding:0 40px;}
@media(max-width:700px){.wrap{padding:0 20px;}}

nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:18px;padding:14px 40px;
 background:var(--nav-bg);backdrop-filter:blur(14px);border-bottom:1px solid var(--line-1);}
.nav-logo{display:flex;align-items:center;gap:9px;font-family:'Bebas Neue',sans-serif;font-size:19px;
 letter-spacing:2.5px;text-decoration:none;color:var(--heading-fg);flex-shrink:0;}
.nav-logo span{width:8px;height:8px;border-radius:50%;background:var(--crimson);}
/* nowrap + hidden: a long trail used to push the bar onto two or three lines,
   which made the header a different height on different pages. It truncates
   instead — the crumb is wayfinding, not content. */
.crumb{flex:1;min-width:0;display:flex;align-items:center;gap:8px;flex-wrap:nowrap;
 overflow:hidden;white-space:nowrap;
 font-family:'DM Mono',monospace;font-size:10px;letter-spacing:1.4px;text-transform:uppercase;color:var(--muted);}
/* Segments keep their natural width and the container clips what does not
   fit. Letting them shrink instead gave 'H. / CA… / KU… / KUBERN…', which
   is a breadcrumb that has stopped telling you where you are. */
.crumb a,.crumb .cur,.crumb span{flex-shrink:0;}
.crumb a{text-decoration:none;color:var(--muted);}
.crumb a:hover{color:var(--crimson);}
.crumb .cur{color:var(--heading-fg);}
.nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-lab{font-family:'DM Mono',monospace;font-size:10px;letter-spacing:1.6px;
 text-transform:uppercase;text-decoration:none;color:var(--muted);
 border:1px solid var(--line-2);border-radius:3px;padding:5px 9px;
 transition:color .2s,border-color .2s,background .2s;white-space:nowrap;}
.nav-lab:hover{color:var(--crimson);border-color:var(--crimson);}
.nav-lab::after{content:' \2197';font-size:9px;}
@media(max-width:560px){.nav-lab{padding:4px 7px;font-size:9px;}
  .nav-sub{display:none;}}
.tt{width:32px;height:32px;border:1px solid var(--line-2);background:transparent;border-radius:50%;
 cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--muted);}
.tt:hover{color:var(--crimson);border-color:var(--crimson);}
.tt svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;}
html:not([data-theme="dark"]) .tt .moon,html[data-theme="dark"] .tt .sun{display:none;}
@media(max-width:760px){nav{padding:12px 18px;gap:12px;}.crumb{display:none;}}

header.hero{padding:60px 0 40px;border-bottom:1px solid var(--line-1);}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:'DM Mono',monospace;font-size:10.5px;
 letter-spacing:3px;text-transform:uppercase;color:var(--muted);margin-bottom:16px;}
.eyebrow::before{content:'';width:22px;height:1px;background:var(--crimson);}
h1{font-family:'Bebas Neue',sans-serif;font-size:clamp(42px,7vw,74px);line-height:.95;letter-spacing:-.5px;
 color:var(--heading-fg);}
.sub{font-family:'Instrument Serif',Georgia,serif;font-style:italic;font-size:20px;color:var(--muted);
 max-width:700px;margin-top:14px;}
.meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:26px;font-family:'DM Mono',monospace;font-size:9.5px;
 letter-spacing:1.6px;text-transform:uppercase;color:var(--muted);}
.meta b{color:var(--heading-fg);font-weight:400;}

section{padding:52px 0;border-bottom:1px solid var(--line-1);}
.sec-tag{display:inline-flex;align-items:center;gap:9px;font-family:'DM Mono',monospace;font-size:9.5px;
 letter-spacing:2.6px;text-transform:uppercase;color:var(--crimson);margin-bottom:12px;}
.sec-tag::before{content:'';width:16px;height:1px;background:var(--crimson);}
h2{font-family:'Bebas Neue',sans-serif;font-size:34px;letter-spacing:1px;color:var(--heading-fg);margin-bottom:10px;}
h3{font-family:'Manrope',sans-serif;font-size:14.5px;font-weight:700;color:var(--heading-fg);
 margin:22px 0 8px;letter-spacing:.1px;}
.lede{font-size:15px;color:var(--muted);max-width:720px;margin-bottom:26px;}
p{font-size:14.5px;margin-bottom:12px;}
p.tight{margin-bottom:8px;}
ul,ol{margin:10px 0 14px 20px;}
li{font-size:14px;margin-bottom:7px;}
code{font-family:'DM Mono',monospace;font-size:.88em;background:var(--wash);padding:2px 5px;
 border-radius:3px;border:1px solid var(--line-1);}
strong{font-weight:700;color:var(--heading-fg);}

.dg-scroll{overflow-x:auto;padding-bottom:6px;}
.dg{width:100%;min-width:660px;height:auto;display:block;}
.dg-layer{font-family:'DM Mono',monospace;font-size:9px;letter-spacing:1.6px;fill:var(--muted);text-anchor:end;}
.dg-node{font-family:'DM Mono',monospace;font-size:10.5px;text-anchor:middle;}
.dg-spine,.dg-tick{stroke:var(--line-3);fill:var(--line-3);stroke-width:1;}
html[data-theme="dark"] .dg-node.n-core{fill:#4dd6e4!important;}
html[data-theme="dark"] .dg-node.n-warm{fill:#f5b544!important;}
html[data-theme="dark"] .dg-node.n-hot{fill:#f07570!important;}
html[data-theme="dark"] .dg-node.n-go{fill:#a7e137!important;}
html[data-theme="dark"] .dg-node.n-calm{fill:#b596f5!important;}
html[data-theme="dark"] .dg-node.n-plain{fill:#8a877f!important;}
.dg-cap{font-size:13px;color:var(--muted);margin-top:16px;max-width:760px;font-style:italic;
 font-family:'Instrument Serif',Georgia,serif;}

.dg-detail,.dg-flow{min-width:680px;}
.dg-title{font-family:'Bebas Neue',sans-serif;font-size:14px;letter-spacing:2px;
 fill:var(--heading-fg);}
.dg-gname{font-family:'DM Mono',monospace;font-size:8.5px;letter-spacing:1.8px;
 fill:var(--muted);}
.dg-sub{font-family:'DM Mono',monospace;font-size:8.5px;text-anchor:middle;fill:var(--muted);}
.dg-port{font-family:'DM Mono',monospace;font-size:9px;text-anchor:middle;fill:var(--muted);}
.dg-edge{stroke:var(--line-3);stroke-width:1.3;fill:none;}
.dg-elabel{font-family:'DM Mono',monospace;font-size:8.5px;letter-spacing:.6px;
 text-anchor:middle;fill:var(--muted);}
/* The three views of one system, side by side on wide screens and stacked on
   a phone, each with the question it answers as its heading. */
.dgset{margin:6px 0 4px;}
.dgset-item{margin-bottom:34px;}
.dgset-item:last-child{margin-bottom:0;}
.dgset-h{display:flex;align-items:baseline;gap:12px;margin-bottom:4px;flex-wrap:wrap;}
.dgset-k{font-family:'DM Mono',monospace;font-size:9px;letter-spacing:2px;text-transform:uppercase;
 color:var(--crimson);border:1px solid var(--line-2);border-radius:3px;padding:3px 7px;
 white-space:nowrap;}
.dgset-q{font-family:'Instrument Serif',Georgia,serif;font-style:italic;font-size:15px;
 color:var(--heading-fg);}
.dgscroll{overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:4px;}


.rc{background:var(--card-bg);border:1px solid var(--line-1);margin-bottom:2px;position:relative;}
.rc::before{content:'';position:absolute;top:0;left:0;width:2px;height:100%;background:transparent;
 transition:background .25s;}
.rc.open::before{background:var(--crimson);}
.rc-head{display:flex;align-items:flex-start;gap:14px;width:100%;padding:16px 18px;background:none;
 border:0;cursor:pointer;text-align:left;font:inherit;color:inherit;transition:background .2s;}
.rc-head:hover{background:var(--wash);}
.rc-n{font-family:'DM Mono',monospace;font-size:10px;color:var(--ash);flex-shrink:0;padding-top:3px;}
.rc-main{flex:1;min-width:0;}
.rc-name{display:block;font-family:'Bebas Neue',sans-serif;font-size:22px;letter-spacing:.6px;
 line-height:1.1;color:var(--heading-fg);}
.rc-desc{display:block;font-size:13px;color:var(--muted);margin-top:5px;line-height:1.55;}
.rc-tags{display:flex;flex-wrap:wrap;gap:5px;margin-top:9px;}
.tg{font-family:'DM Mono',monospace;font-size:8.5px;letter-spacing:1.1px;text-transform:uppercase;
 padding:3px 8px;border-radius:20px;background:var(--wash);border:1px solid var(--line-2);color:var(--muted);}
.rc-chev{font-family:'DM Mono',monospace;font-size:13px;color:var(--ash);flex-shrink:0;
 transition:transform .3s;padding-top:3px;}
.rc.open .rc-chev{transform:rotate(-180deg);color:var(--crimson);}
.rc-body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .4s cubic-bezier(.25,.46,.45,.94);}
.rc.open .rc-body{grid-template-rows:1fr;}
.rc-inner{overflow:hidden;min-height:0;}
.rc-inner > div:last-child,.rc-inner > p:last-child{margin-bottom:0;}
.rc-inner{padding:0 18px 0 46px;}
.rc.open .rc-inner{padding-bottom:22px;}
@media(max-width:700px){.rc-inner{padding-left:18px;}}

.tb{background:var(--code-bg);border-radius:6px;overflow:hidden;margin:14px 0;
 border:1px solid rgba(255,255,255,.08);}
.tb-bar{display:flex;align-items:center;gap:6px;padding:9px 13px;background:rgba(255,255,255,.04);
 border-bottom:1px solid rgba(255,255,255,.07);}
.tb-bar .d{width:8px;height:8px;border-radius:50%;display:block;}
.tb-bar .d.r{background:#ff5f57;}.tb-bar .d.y{background:#febc2e;}.tb-bar .d.g{background:#28c840;}
.tb-t{margin-left:9px;font-family:'DM Mono',monospace;font-size:9.5px;letter-spacing:1.4px;
 text-transform:uppercase;color:rgba(255,255,255,.35);}
.tb-body{padding:15px 16px;font-family:'DM Mono',monospace;font-size:12px;line-height:1.85;
 overflow-x:auto;}
.tl{white-space:pre;}
.tp{color:var(--cyan);}
/* .tx, not .tt — .tt is the theme-toggle button defined above (32px circle,
   display:flex, border-radius:50%). Sharing the class name laid every command
   line out inside that box and clipped it on both sides. */
.tx{color:#e8e6e1;}

/* ─── FURTHER READING ─── */
.refs{margin:26px 0 8px;border-top:1px solid var(--line-2);padding-top:22px;}
.refs-h{font-family:'DM Mono',monospace;font-size:10px;letter-spacing:2px;
 text-transform:uppercase;color:var(--muted);margin-bottom:14px;}
.refs-l{display:grid;gap:2px;background:var(--line-1);border:1px solid var(--line-1);}
.ref{display:grid;grid-template-columns:auto 1fr auto;align-items:baseline;gap:4px 14px;
 background:var(--card-bg);padding:13px 16px;text-decoration:none;transition:background .16s;}
.ref:hover{background:var(--wash-1);}
.ref-m{grid-row:1;font-family:'DM Mono',monospace;font-size:9px;letter-spacing:1.2px;
 color:var(--crimson);white-space:nowrap;}
.ref-t{grid-row:1;font-size:14.5px;color:var(--heading-fg);font-weight:500;}
.ref-x{grid-row:1;color:var(--muted);font-size:12px;}
.ref-w{grid-column:2;grid-row:2;font-size:12.5px;color:var(--muted);line-height:1.5;}
@media(max-width:620px){
 .ref{grid-template-columns:1fr auto;}
 .ref-m{grid-row:1;grid-column:1;}
 .ref-t{grid-row:2;grid-column:1/-1;}
 .ref-w{grid-row:3;grid-column:1/-1;}
}
.tc{color:rgba(255,255,255,.32);}
.to{color:rgba(255,255,255,.6);}

.tw{overflow-x:auto;margin:16px 0;}
.tbl{width:100%;border-collapse:collapse;font-size:13px;min-width:520px;}
.tbl th{text-align:left;font-family:'DM Mono',monospace;font-size:9px;letter-spacing:1.6px;
 text-transform:uppercase;color:var(--muted);padding:10px 12px;border-bottom:1px solid var(--line-3);
 white-space:nowrap;}
.tbl td{padding:11px 12px;border-bottom:1px solid var(--line-1);vertical-align:top;}
.tbl tr:hover td{background:var(--wash);}
.tbl code{white-space:nowrap;}
.tbl.mono td:first-child{font-family:'DM Mono',monospace;font-size:11.5px;white-space:nowrap;
 color:var(--heading-fg);}

.note{padding:14px 16px;border-left:3px solid;background:var(--wash);margin:16px 0;font-size:13.5px;}
.note b{display:block;font-family:'DM Mono',monospace;font-size:9.5px;letter-spacing:1.8px;
 text-transform:uppercase;margin-bottom:7px;}
.note.tip{border-color:var(--lime);}.note.tip b{color:#4c840f;}
.note.warn{border-color:var(--amber);}.note.warn b{color:#8a5806;}
.note.trap{border-color:var(--crimson);}.note.trap b{color:var(--crimson);}
html[data-theme="dark"] .note.tip b{color:var(--lime);}
html[data-theme="dark"] .note.warn b{color:var(--amber);}

.pager{display:flex;gap:2px;margin-top:26px;}
.pager a{flex:1;background:var(--card-bg);border:1px solid var(--line-1);padding:16px 18px;
 text-decoration:none;font-family:'DM Mono',monospace;font-size:10px;letter-spacing:1.4px;
 text-transform:uppercase;color:var(--muted);transition:background .2s,color .2s;}
.pager a:hover{background:var(--panel-bg);color:var(--crimson);}
.pager a.next{text-align:right;}
.pager a b{display:block;font-family:'Bebas Neue',sans-serif;font-size:19px;letter-spacing:.5px;
 color:var(--heading-fg);font-weight:400;margin-top:5px;}

footer{background:var(--coal);color:var(--paper);padding:52px 40px 26px;}
.f-in{max-width:1000px;margin:0 auto;}
.f-top{display:grid;grid-template-columns:1.3fr 2fr;gap:48px;}
.f-logo{font-family:'Bebas Neue',sans-serif;font-size:22px;letter-spacing:3px;color:#fff;text-decoration:none;}
.f-tag{font-family:'Instrument Serif',Georgia,serif;font-style:italic;font-size:14px;
 color:rgba(255,255,255,.5);margin-top:12px;line-height:1.6;}
.f-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.f-col-t{font-family:'DM Mono',monospace;font-size:9.5px;letter-spacing:2.2px;text-transform:uppercase;
 color:rgba(255,255,255,.35);margin-bottom:12px;}
.f-cols a{display:block;font-size:12.5px;color:rgba(255,255,255,.72);text-decoration:none;padding:4px 0;}
.f-cols a:hover{color:var(--cyan);}
.f-bot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-top:38px;padding-top:18px;
 border-top:1px solid rgba(255,255,255,.1);font-family:'DM Mono',monospace;font-size:9.5px;
 letter-spacing:1.2px;color:rgba(255,255,255,.35);}
.f-bot a{color:rgba(255,255,255,.5);}
@media(max-width:820px){.f-top{grid-template-columns:1fr;gap:30px;}footer{padding:44px 20px 22px;}}
@media(max-width:560px){.f-cols{grid-template-columns:1fr 1fr;}}