/* ══════════════════════════════════════════════════════════════════════
   Hephaestus — one design system, shared by every page.
   Palette taken from the project banner: tempered metal — copper wordmark,
   coal-warm ground, a cool "quench" blue as the second accent.
   ══════════════════════════════════════════════════════════════════════ */

:root{
  --coal:#0c0706;
  --coal-2:#130e0b;
  --coal-3:#191310;
  --coal-4:#201813;
  --line:#2a201a;
  --line-2:#3a2c23;
  --copper-hi:#f7ddc9;
  --copper:#e3966c;
  --copper-lo:#b5502e;
  --amber:#eaa24d;
  --quench:#5aa9dd;
  --quench-hi:#83c1e8;
  --coral:#e5936b;
  --taupe:#a08a7e;
  --taupe-2:#71605604; /* placeholder, overridden below */
  --taupe-2:#736159;
  --cream:#f1e8e0;
  --pass:#63c091;
  --fail:#e0523a;
  --r:6px;
  --r-lg:12px;
  --nav-h:60px;
  --maxw:1300px;
  --wordmark:linear-gradient(176deg,#f7ddc9 0%,#eec3a4 38%,#e3966c 72%,#b5502e 100%);
  --quench-rule:linear-gradient(90deg,#c14a2c,#eaa24d 50%,#5aa9dd);
  --warm:linear-gradient(92deg,#b5502e,#e3966c 55%,#eaa24d);
  --f-disp:'Manrope','Helvetica Neue',Helvetica,Arial,sans-serif;
  --f-body:'Hanken Grotesk',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --f-mono:'JetBrains Mono','SF Mono',Menlo,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 20px)}
body{font-family:var(--f-body);background:var(--coal);color:var(--cream);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--copper);text-decoration:none;transition:color .15s}
a:hover{color:var(--quench)}
code,pre,kbd{font-family:var(--f-mono)}
img,svg,canvas{display:block;max-width:100%}
::selection{background:rgba(227,150,108,.26);color:#fff}
h1,h2,h3,h4{font-family:var(--f-disp);letter-spacing:-.02em;font-weight:800;color:var(--cream)}

/* thin, unobtrusive scrollbars */
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:var(--copper-lo)}
*{scrollbar-width:thin;scrollbar-color:var(--line-2) transparent}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.eyebrow{font-family:var(--f-mono);font-size:.7rem;font-weight:500;letter-spacing:.22em;text-transform:uppercase;color:var(--taupe);display:inline-flex;align-items:center;gap:11px}
.eyebrow .tgt{width:8px;height:8px;border-radius:50%;border:1.5px solid var(--copper);position:relative;flex:0 0 auto}
.eyebrow .tgt::after{content:"";position:absolute;inset:2px;border-radius:50%;background:var(--copper)}
.hair{height:1px;border:0;background:linear-gradient(90deg,transparent,var(--line-2) 18%,var(--line-2) 82%,transparent)}
.q-rule{height:2px;border:0;border-radius:2px;background:var(--quench-rule);opacity:.85}

/* ── Logo mark ─────────────────────────────────────────────────────── */
.logo-mark{width:22px;height:22px;flex:0 0 auto}
.logo-mark path{stroke:url(#lgrad);stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;fill:none}

/* ── Nav (shared) ──────────────────────────────────────────────────── */
.nav{position:fixed;inset:0 0 auto 0;z-index:200;height:var(--nav-h);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);background:rgba(12,7,6,.82);border-bottom:1px solid var(--line)}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:0 28px;height:100%;display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--f-disp);font-weight:800;font-size:1.08rem;letter-spacing:-.02em;color:var(--cream)}
.brand .dot,.foot-brand .dot{width:9px;height:9px;border-radius:50%;border:1.6px solid var(--copper);position:relative;flex:0 0 auto}
.brand .dot::after,.foot-brand .dot::after{content:"";position:absolute;inset:2px;border-radius:50%;background:var(--copper)}
.nav-links{display:flex;gap:22px;margin-left:8px}
.nav-links a{color:var(--taupe);font-size:.9rem;font-weight:500}
.nav-links a:hover,.nav-links a.on{color:var(--cream)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-gh{display:inline-flex;align-items:center;gap:8px;font-size:.86rem;font-weight:600;color:var(--cream);border:1px solid var(--line-2);border-radius:var(--r);padding:7px 13px;transition:border-color .18s,background .18s}
.nav-gh:hover{border-color:var(--quench);color:var(--cream);background:var(--coal-2)}
.nav-gh svg{width:16px;height:16px;fill:currentColor}
.burger{display:none;background:none;border:0;color:var(--cream);cursor:pointer;padding:6px}
.burger svg{width:24px;height:24px}
#mnav{display:none;position:fixed;top:var(--nav-h);left:0;right:0;z-index:199;background:rgba(12,7,6,.98);border-bottom:1px solid var(--line);padding:8px 28px 16px;flex-direction:column}
#mnav a{padding:12px 0;color:var(--cream);font-size:1rem;border-bottom:1px solid var(--line)}
#mnav.open{display:flex}

/* ── Buttons — small, restrained ───────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--f-body);font-weight:600;font-size:.88rem;padding:9px 17px;border-radius:var(--r);border:1px solid transparent;cursor:pointer;transition:transform .1s,border-color .18s,background .18s,color .18s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn svg{width:15px;height:15px}
.btn-primary{background:var(--copper);color:#241009;border-color:var(--copper)}
.btn-primary:hover{background:var(--copper-hi);border-color:var(--copper-hi);color:#241009}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--cream)}
.btn-ghost:hover{border-color:var(--quench);color:var(--cream);background:var(--coal-2)}

/* ── Code window ───────────────────────────────────────────────────── */
.code{background:#0b0605;border:1px solid var(--line-2);border-radius:var(--r-lg);overflow:hidden}
.code-bar{display:flex;align-items:center;gap:7px;padding:11px 15px;border-bottom:1px solid var(--line);background:rgba(25,19,16,.5)}
.code-bar .d{width:10px;height:10px;border-radius:50%}
.d.r{background:#e0523a}.d.y{background:#eaa24d}.d.g{background:#63c091}
.code-file{margin-left:7px;font-family:var(--f-mono);font-size:.75rem;color:var(--taupe)}
.code-copy{margin-left:auto;font-family:var(--f-mono);font-size:.71rem;color:var(--taupe);background:var(--coal-2);border:1px solid var(--line-2);border-radius:5px;padding:4px 10px;cursor:pointer;transition:.15s}
.code-copy:hover{border-color:var(--quench);color:var(--cream)}
.code-body{padding:18px 20px;overflow-x:auto;font-size:.8rem;line-height:1.7}
.code-body pre{font-family:var(--f-mono)}
.c-cmt{color:#8a736a}.c-kw{color:var(--copper-lo)}.c-var{color:var(--coral)}
.c-key{color:var(--quench)}.c-str{color:var(--pass)}.c-num{color:var(--amber)}.c-fn{color:var(--copper-hi)}.c-punc{color:var(--taupe)}

/* ── Section frame ─────────────────────────────────────────────────── */
.band{padding:74px 0}
.sec-head{margin-bottom:42px;max-width:60ch}
.sec-head h2{font-size:clamp(1.7rem,3.6vw,2.5rem);letter-spacing:-.03em;line-height:1.06;margin:14px 0 12px;text-wrap:balance}
.sec-head p{color:var(--taupe);font-size:1.04rem}
.sec-head p code,.rt code,.pipe-note code,.card p code{font-family:var(--f-mono);font-size:.86em;color:var(--coral)}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s cubic-bezier(.2,.7,.2,1),transform .6s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ── Cards / feature grid ──────────────────────────────────────────── */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.card{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--coal-2);padding:24px 22px;transition:border-color .2s,transform .2s}
.card:hover{transform:translateY(-2px);border-color:var(--line-2)}
.card .ic{width:38px;height:38px;display:grid;place-items:center;border-radius:9px;background:var(--coal-3);border:1px solid var(--line-2);margin-bottom:15px;color:var(--copper)}
.card .ic svg{width:19px;height:19px;stroke:currentColor;stroke-width:1.7;fill:none;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:1.1rem;font-weight:700;margin-bottom:7px}
.card p{color:var(--taupe);font-size:.91rem}
.card p code{background:var(--coal);border:1px solid var(--line-2);border-radius:4px;padding:1px 5px;font-size:.82em}

/* ── Two runtimes ──────────────────────────────────────────────────── */
.runtimes{display:grid;grid-template-columns:1fr auto 1fr;gap:22px;align-items:stretch}
.rt{border:1px solid var(--line-2);border-radius:var(--r-lg);background:var(--coal-2);padding:24px;position:relative;overflow:hidden}
.rt::before{content:"";position:absolute;top:0;left:0;right:0;height:2px}
.rt.hot::before{background:var(--warm)}
.rt.cool::before{background:linear-gradient(90deg,#5aa9dd,#83c1e8)}
.rt-tag{font-family:var(--f-mono);font-size:.66rem;letter-spacing:.15em;text-transform:uppercase;margin-bottom:11px}
.rt.hot .rt-tag{color:var(--copper)}.rt.cool .rt-tag{color:var(--quench)}
.rt h3{font-size:1.24rem;font-weight:700;margin-bottom:9px}
.rt p{color:var(--taupe);font-size:.92rem;margin-bottom:13px}
.rt ul{list-style:none;display:flex;flex-direction:column;gap:6px}
.rt li{font-size:.88rem;color:var(--cream);display:flex;gap:9px;align-items:flex-start}
.rt li::before{content:"";width:6px;height:6px;border-radius:50%;margin-top:8px;flex:0 0 auto}
.rt.hot li::before{background:var(--copper)}.rt.cool li::before{background:var(--quench)}
.rt code{color:var(--amber)}
.rt-flow{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;min-width:88px}
.rt-flow .arw{width:34px;height:34px;stroke:url(#qgrad);stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.rt-flow small{font-family:var(--f-mono);font-size:.63rem;color:var(--taupe-2);text-align:center;letter-spacing:.03em;line-height:1.4}

/* ── Pipeline — compact module grid, fills width, no scroll ────────── */
.pipe{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px}
.pipe li{display:flex;align-items:center;gap:12px;border:1px solid var(--line-2);border-top:2px solid var(--copper-lo);border-radius:var(--r);background:var(--coal-2);padding:12px 14px;transition:border-color .18s}
.pipe li:hover{border-color:var(--line-2);border-top-color:var(--copper)}
.pipe .pn{font-family:var(--f-mono);font-size:.7rem;color:var(--taupe-2);flex:0 0 auto}
.pipe .nm{font-family:var(--f-mono);font-size:.85rem;color:var(--cream);font-weight:500}
.pipe li.ctrl{border-top-color:var(--quench)}
.pipe li.ctrl .nm{color:var(--quench)}
.pipe .tagline{display:none}
.pipe-legend{display:flex;gap:22px;margin-top:16px;font-size:.8rem;color:var(--taupe);flex-wrap:wrap}
.pipe-legend span{display:flex;align-items:center;gap:8px}
.pipe-legend i{width:16px;height:2px;display:inline-block}
.pipe-note{margin-top:18px;font-size:.92rem;color:var(--taupe);max-width:none}
.pipe-note b{color:var(--cream);font-weight:600}
.pipe-note code{color:var(--quench)}

/* ── Tools grid ────────────────────────────────────────────────────── */
.tools{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}
.tool{display:flex;gap:11px;align-items:baseline;border:1px solid var(--line);border-radius:var(--r);background:var(--coal-2);padding:12px 15px;transition:border-color .18s}
.tool:hover{border-color:var(--line-2)}
.tool .cmd{font-family:var(--f-mono);font-size:.84rem;color:var(--coral);font-weight:500;white-space:nowrap;
  /* reset the standalone .cmd chip styles that would otherwise leak in */
  display:inline;background:none;border:0;padding:0;overflow:visible}
.tool .desc{font-size:.8rem;color:var(--taupe)}

/* ── Tabs ──────────────────────────────────────────────────────────── */
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.tab{font-family:var(--f-mono);font-size:.81rem;color:var(--taupe);background:var(--coal-2);border:1px solid var(--line-2);border-radius:var(--r);padding:7px 15px;cursor:pointer;transition:.16s}
.tab:hover{color:var(--cream)}
.tab.on{color:#241009;background:var(--copper);border-color:var(--copper);font-weight:500}
.pane{display:none}.pane.on{display:block}

/* ── Steps ─────────────────────────────────────────────────────────── */
.steps{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.step{border:1px solid var(--line-2);border-radius:var(--r-lg);background:var(--coal-2);padding:22px}
.step .num{font-family:var(--f-mono);font-size:.7rem;color:var(--quench);letter-spacing:.1em;margin-bottom:9px}
.step h3{font-size:1.12rem;font-weight:700;margin-bottom:9px}
.step p{color:var(--taupe);font-size:.9rem;margin-bottom:12px}
.cmd{font-family:var(--f-mono);font-size:.83rem;background:var(--coal);border:1px solid var(--line-2);border-radius:var(--r);padding:10px 13px;color:var(--cream);display:flex;align-items:center;gap:9px;overflow-x:auto}
.cmd .p{color:var(--copper-lo);flex:0 0 auto}
.cmd .cc{margin-left:auto;color:var(--taupe);background:none;border:0;cursor:pointer;font-family:var(--f-mono);font-size:.77rem;flex:0 0 auto}
.cmd .cc:hover{color:var(--quench)}

/* ── CTA ───────────────────────────────────────────────────────────── */
.cta{position:relative;text-align:center;padding:90px 0;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 130%,rgba(181,80,46,.22),transparent 60%);pointer-events:none}
.cta h2{position:relative;font-size:clamp(2rem,4.6vw,3rem);letter-spacing:-.035em;margin-bottom:15px;text-wrap:balance}
.cta h2 .w{background:var(--wordmark);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.cta p{position:relative;color:var(--taupe);font-size:1.08rem;max-width:52ch;margin:0 auto 28px}
.cta p code{color:var(--coral)}
.cta .btns{position:relative;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ── Footer (shared) ───────────────────────────────────────────────── */
.foot-wrap{border-top:1px solid var(--line);padding:44px 0 52px;background:var(--coal-2)}
.foot{display:flex;flex-wrap:wrap;gap:30px;justify-content:space-between;align-items:flex-start}
.foot-brand{display:flex;align-items:center;gap:9px;font-family:var(--f-disp);font-weight:800;font-size:1.06rem;margin-bottom:10px}
.foot-lead{color:var(--taupe);font-size:.9rem;max-width:34ch}
.foot-cols{display:flex;gap:50px;flex-wrap:wrap}
.foot-col h4{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.15em;text-transform:uppercase;color:var(--taupe-2);margin-bottom:12px}
.foot-col a{display:block;color:var(--taupe);font-size:.89rem;padding:4px 0}
.foot-col a:hover{color:var(--copper)}
.foot-legal{margin-top:34px;padding-top:22px;border-top:1px solid var(--line);color:var(--taupe-2);font-size:.81rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}

/* ══ DOC PAGES — shared sidebar + prose layout ═══════════════════════ */
.doc-hero{padding:calc(var(--nav-h) + 46px) 0 26px;border-bottom:1px solid var(--line)}
.doc-hero h1{font-size:clamp(2rem,4.5vw,2.9rem);letter-spacing:-.03em;margin:14px 0 12px}
.doc-hero p{color:var(--taupe);font-size:1.08rem;max-width:60ch}
.doc-layout{display:grid;grid-template-columns:230px 1fr;gap:44px;max-width:var(--maxw);margin:0 auto;padding:0 28px;align-items:start}
.doc-side{position:sticky;top:calc(var(--nav-h) + 24px);align-self:start;padding:30px 0;max-height:calc(100vh - var(--nav-h) - 24px);overflow-y:auto}
.doc-side .grp{font-family:var(--f-mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--taupe-2);margin:18px 0 8px}
.doc-side .grp:first-child{margin-top:0}
.doc-side a{display:block;color:var(--taupe);font-size:.88rem;padding:5px 12px;border-left:2px solid transparent;transition:.15s}
.doc-side a:hover{color:var(--cream)}
.doc-side a.on{color:var(--copper);border-left-color:var(--copper)}
.doc-body{padding:34px 0 80px;min-width:0}
.doc-body h2{font-size:1.6rem;letter-spacing:-.02em;margin:44px 0 14px;padding-top:6px}
.doc-body h2:first-child{margin-top:0}
.doc-body h3{font-size:1.16rem;font-weight:700;margin:26px 0 10px}
.doc-body p{color:#cdbcb0;margin:0 0 14px}
.doc-body ul,.doc-body ol{color:#cdbcb0;margin:0 0 16px 20px}
.doc-body li{margin:5px 0}
.doc-body a{color:var(--copper)}.doc-body a:hover{color:var(--quench)}
.doc-body p code,.doc-body li code,.doc-body td code{font-family:var(--f-mono);font-size:.84em;color:var(--coral);background:var(--coal-2);border:1px solid var(--line);border-radius:4px;padding:1px 5px}
/* code blocks: a positioned wrapper so a copy button can sit top-right */
.codewrap{position:relative;margin:0 0 18px}
.codewrap .cbtn{position:absolute;top:9px;right:9px;font-family:var(--f-mono);font-size:.71rem;color:var(--taupe);background:var(--coal-3);border:1px solid var(--line-2);border-radius:5px;padding:4px 10px;cursor:pointer;transition:.15s;z-index:2}
.codewrap .cbtn:hover{border-color:var(--quench);color:var(--cream)}
.doc-body pre{background:#0b0605;border:1px solid var(--line-2);border-radius:var(--r-lg);padding:16px 18px;overflow-x:auto;font-size:.8rem;line-height:1.7;margin:0 0 18px}
.codewrap pre{margin:0}
.doc-body pre code{color:var(--cream);background:none;border:0;padding:0}
.callout{border:1px solid var(--line-2);border-left:3px solid var(--quench);border-radius:var(--r);background:var(--coal-2);padding:13px 16px;margin:0 0 18px;font-size:.92rem;color:#cdbcb0}
.callout b{color:var(--cream)}

/* config option card */
.opt{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--coal-2);padding:18px 20px;margin:0 0 12px;scroll-margin-top:calc(var(--nav-h) + 24px)}
.opt-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:6px}
.opt-name{font-family:var(--f-mono);font-size:1rem;font-weight:700;color:var(--cream)}
.opt-type{font-family:var(--f-mono);font-size:.72rem;color:var(--quench);background:rgba(90,169,221,.1);border:1px solid rgba(90,169,221,.25);border-radius:4px;padding:2px 8px}
.opt-since{font-family:var(--f-mono);font-size:.7rem;color:var(--taupe-2);margin-left:auto}
.opt p{color:var(--taupe);font-size:.92rem;margin:0;max-width:none}
.opt p code,.opt-desc code{font-family:var(--f-mono);font-size:.84em;color:var(--coral)}
.opt pre{margin:12px 0 0}

/* small pill badge */
.pill{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.05em;color:var(--copper);background:var(--coal-3);border:1px solid var(--line-2);border-radius:100px;padding:3px 10px}
.pill.cool{color:var(--quench)}
.pill.ok{color:var(--pass)}

/* ── Responsive ────────────────────────────────────────────────────── */
@media(max-width:900px){
  .grid,.tools{grid-template-columns:repeat(2,1fr)}
  .runtimes{grid-template-columns:1fr;gap:14px}
  .rt-flow{flex-direction:row;min-width:0;padding:2px 0}
  .rt-flow .arw{transform:rotate(90deg)}
  .steps{grid-template-columns:1fr}
  .nav-links{display:none}
  .burger{display:block;margin-left:auto}
  .doc-layout{grid-template-columns:1fr;gap:0}
  .doc-side{position:static;max-height:none;overflow:visible;padding:18px 0;border-bottom:1px solid var(--line);display:flex;flex-wrap:wrap;gap:4px 14px}
  .doc-side .grp{width:100%;margin:10px 0 2px}
  .doc-side a{border-left:0;padding:5px 0}
}
@media(max-width:560px){
  .wrap,.nav-in,.doc-layout{padding-left:18px;padding-right:18px}
  .band{padding:54px 0}
  .grid,.tools{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  [data-sheen]{animation:none!important}
}