/* Quiet Build, shared styles for the Knowledge hub + articles. Dark theme, mobile-first. */
:root{
  --black:#0A0A0A;--deep:#111110;--dark:#161613;--mid:#1F1E1A;--line:#2A2824;
  --grey:#8A857C;--muted:#5C5850;--light:#E8E4DF;--white:#FAF8F5;
  --sand:#D4B896;--sandb:#E0C9A8;--sage:#A8C4AA;--terra:#C4836A;
  --fd:'DM Serif Display',Georgia,serif;--fb:'Inter',-apple-system,sans-serif;--fm:'JetBrains Mono',monospace;
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-font-smoothing:antialiased}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--deep);color:var(--light);font-family:var(--fb);line-height:1.6;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
::selection{background:rgba(212,184,150,.25);color:var(--white)}

/* nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(17,17,16,.94);border-bottom:1px solid var(--line);transition:transform .35s}
.nav.hidden{transform:translateY(-110%)}
.nav__in{display:flex;align-items:center;justify-content:space-between;max-width:1200px;margin:0 auto;padding:.7rem 1.1rem}
.brand{display:flex;align-items:center;gap:.55rem}
.brand__mark{width:30px;height:30px;flex:none}
.brand__text{font-family:var(--fd);font-size:1.25rem;color:var(--white)}
.brand__text i{color:var(--terra);font-style:normal}
.nav__links{display:none;gap:1.8rem;list-style:none;font-family:var(--fm);font-size:.72rem;text-transform:uppercase;letter-spacing:.15em}
.nav__links a{color:var(--grey);transition:color .2s}.nav__links a:hover,.nav__links a.on{color:var(--sand)}
.nav__cta{font-family:var(--fm);font-size:.7rem;text-transform:uppercase;letter-spacing:.12em;background:var(--sand);color:var(--black);padding:.55rem 1rem;border-radius:999px;font-weight:600}
@media(min-width:860px){.nav__in{padding:.9rem 2.2rem}.nav__links{display:flex}}

/* generic */
.kicker{font-family:var(--fm);font-size:.7rem;text-transform:uppercase;letter-spacing:.28em;color:var(--grey);display:flex;align-items:center;gap:.75rem;margin-bottom:1.3rem}
.kicker::before{content:"";width:34px;height:1px;background:var(--sand)}
.btn{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--fm);font-size:.75rem;text-transform:uppercase;letter-spacing:.14em;padding:.95rem 1.7rem;border-radius:999px;border:1px solid var(--sand);color:var(--sand);transition:.25s}
.btn.primary{background:var(--sand);color:var(--black)}
.btn.primary:hover{background:var(--terra);border-color:var(--terra);color:var(--white)}
.btn:hover{background:rgba(212,184,150,.1)}

/* ---- HUB ---- */
.hub-hero{padding:6.5rem 1.1rem 1.5rem;max-width:1200px;margin:0 auto}
.hub-hero h1{font-family:var(--fd);font-size:clamp(2.3rem,8vw,4.6rem);font-weight:400;line-height:1.05;letter-spacing:-.01em}
.hub-hero h1 .ac{color:var(--sand)}
.hub-hero p{margin-top:1.2rem;max-width:60ch;color:var(--light);opacity:.85;font-size:1.02rem}
@media(min-width:860px){.hub-hero{padding:9rem 2.2rem 2rem}}
.hub-filter{position:sticky;top:48px;z-index:90;background:rgba(17,17,16,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:.7rem 0;margin-top:1.4rem}
.hub-filter__in{max-width:1200px;margin:0 auto;padding:0 1.1rem;display:flex;flex-direction:column;gap:.7rem}
.search{display:flex;align-items:center;gap:.6rem;background:var(--mid);border:1px solid var(--line);border-radius:999px;padding:.6rem 1rem}
.search svg{width:16px;height:16px;color:var(--grey);flex:none}
.search input{flex:1;background:none;border:none;outline:none;color:var(--white);font-family:var(--fb);font-size:16px}
.search input::placeholder{color:var(--muted)}
.pills{display:flex;gap:.5rem;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.pills::-webkit-scrollbar{display:none}
.pill{flex:none;font-family:var(--fm);font-size:.7rem;text-transform:uppercase;letter-spacing:.1em;background:var(--mid);color:var(--grey);border:1px solid var(--line);border-radius:999px;padding:.5rem .9rem;cursor:pointer;white-space:nowrap;transition:.2s;-webkit-tap-highlight-color:transparent}
.pill:hover{color:var(--light);border-color:var(--grey)}
.pill.on{background:var(--sand);color:var(--black);border-color:var(--sand)}
@media(min-width:860px){.hub-filter{top:60px}.hub-filter__in{flex-direction:row;align-items:center;gap:1.2rem;padding:0 2.2rem}.search{flex:1;max-width:340px;order:2}.pills{order:1;flex:1}}
.hub-grid-wrap{max-width:1200px;margin:0 auto;padding:2rem 1.1rem 5rem}
.hub-grid{display:grid;grid-template-columns:1fr;gap:1.1rem}
@media(min-width:680px){.hub-grid{grid-template-columns:repeat(2,1fr);gap:1.3rem}}
@media(min-width:1000px){.hub-grid{grid-template-columns:repeat(3,1fr);gap:1.5rem}}
.acard{display:flex;flex-direction:column;background:var(--dark);border:1px solid var(--line);border-radius:16px;padding:1.4rem;cursor:pointer;opacity:0;transform:translateY(26px);transition:opacity .6s,transform .6s,border-color .3s,box-shadow .3s}
.acard.in{opacity:1;transform:translateY(0)}
.acard:hover{border-color:rgba(212,184,150,.4);box-shadow:0 16px 44px rgba(0,0,0,.4)}
.acard__cat{font-family:var(--fm);font-size:.64rem;text-transform:uppercase;letter-spacing:.16em;color:var(--sand)}
.acard__t{font-family:var(--fd);font-size:1.4rem;line-height:1.15;margin:.7rem 0 .5rem}
.acard__d{font-size:.9rem;color:var(--light);opacity:.72;flex:1}
.acard__m{font-family:var(--fm);font-size:.65rem;text-transform:uppercase;letter-spacing:.12em;color:var(--grey);margin-top:1.1rem}

/* ---- ARTICLE ---- */
.art-hero{max-width:760px;margin:0 auto;padding:6.5rem 1.2rem 0}
@media(min-width:860px){.art-hero{padding:9rem 1.2rem 0}}
.crumb{font-family:var(--fm);font-size:.68rem;text-transform:uppercase;letter-spacing:.14em;color:var(--grey);margin-bottom:1.4rem}
.crumb a:hover{color:var(--sand)}
.art-cat{font-family:var(--fm);font-size:.7rem;text-transform:uppercase;letter-spacing:.2em;color:var(--sand);margin-bottom:1rem}
.art-title{font-family:var(--fd);font-size:clamp(2rem,6vw,3.4rem);font-weight:400;line-height:1.08;letter-spacing:-.01em}
.art-meta{display:flex;flex-wrap:wrap;gap:1.2rem;margin-top:1.4rem;font-family:var(--fm);font-size:.7rem;text-transform:uppercase;letter-spacing:.12em;color:var(--grey)}
.art-meta b{color:var(--sand);font-weight:500}
.artbody{max-width:760px;margin:0 auto;padding:2.2rem 1.2rem 3rem;font-size:1.07rem;color:var(--light)}
.artbody>p{margin:0 0 1.3rem;opacity:.92}
.artbody h2{font-family:var(--fd);font-size:clamp(1.6rem,4.5vw,2.2rem);font-weight:400;line-height:1.15;margin:2.6rem 0 1rem;color:var(--white)}
.artbody h3{font-family:var(--fb);font-weight:600;font-size:1.2rem;margin:2rem 0 .7rem;color:var(--white)}
.artbody ul,.artbody ol{margin:0 0 1.4rem 1.1rem}
.artbody li{margin:.45rem 0;opacity:.92}
.artbody a.inline{color:var(--sand);border-bottom:1px solid rgba(212,184,150,.4)}
.artbody a.inline:hover{border-color:var(--sand)}
.artbody strong{color:var(--white)}
.lead{font-size:1.2rem;line-height:1.6;color:var(--light);opacity:1!important}

.takeaways{background:var(--dark);border:1px solid var(--line);border-left:3px solid var(--sand);border-radius:12px;padding:1.4rem 1.5rem;margin:0 0 2rem}
.takeaways h2{font-family:var(--fm);font-size:.72rem!important;text-transform:uppercase;letter-spacing:.16em;color:var(--sand);margin:0 0 .9rem!important}
.takeaways ul{margin:0 0 0 1rem}
.takeaways li{font-size:.98rem;margin:.5rem 0}

.qb-quote{position:relative;font-family:var(--fd);font-size:clamp(1.5rem,4vw,2rem);line-height:1.3;color:var(--white);margin:2.2rem 0;padding:1.4rem 1.6rem;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.qb-quote::before{content:"\201C";color:var(--sand);font-size:2.4rem;line-height:0;vertical-align:-.35em;margin-right:.15em}

.faq{margin:2.4rem 0}
.faq details{border:1px solid var(--line);border-radius:10px;margin-bottom:.7rem;background:var(--dark);overflow:hidden}
.faq summary{list-style:none;cursor:pointer;padding:1rem 1.2rem;font-weight:600;color:var(--white);display:flex;justify-content:space-between;align-items:center;gap:1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--sand);font-size:1.3rem;transition:transform .25s;flex:none}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details[open] summary{border-bottom:1px solid var(--line)}
.faq .a{padding:1rem 1.2rem;color:var(--light);opacity:.85;font-size:.98rem;border-left:2px solid var(--sand);margin:0 0 0 0}

.sources{margin:2.6rem 0 0;padding:1.4rem 0 0;border-top:1px solid var(--line)}
.sources h2{font-family:var(--fm);font-size:.72rem!important;text-transform:uppercase;letter-spacing:.16em;color:var(--grey);margin:0 0 .8rem!important}
.sources ol{margin:0 0 0 1.1rem;font-size:.86rem;color:var(--grey)}
.sources li{margin:.4rem 0}
.sources a{color:var(--sand);word-break:break-word}

.art-cta{max-width:760px;margin:2.5rem auto 0;padding:2rem 1.5rem;text-align:center;background:var(--black);border:1px solid var(--line);border-radius:16px}
.art-cta h3{font-family:var(--fd);font-size:1.6rem;font-weight:400;margin-bottom:.6rem;color:var(--white)}
.art-cta p{color:var(--grey);font-size:.95rem;margin-bottom:1.3rem}
.related{max-width:760px;margin:0 auto;padding:3rem 1.2rem 1rem}
.related h2{font-family:var(--fm);font-size:.72rem;text-transform:uppercase;letter-spacing:.16em;color:var(--grey);margin-bottom:1rem}
.related a{display:block;padding:1rem 1.2rem;border:1px solid var(--line);border-radius:10px;margin-bottom:.7rem;transition:.25s}
.related a:hover{border-color:var(--sand);color:var(--sand)}
.related a b{font-family:var(--fd);font-weight:400;font-size:1.1rem;color:var(--white);display:block;margin-bottom:.2rem}
.related a:hover b{color:var(--sand)}

/* footer */
footer{padding:2.5rem 1.1rem 3rem;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:1.2rem;font-family:var(--fm);font-size:.7rem;text-transform:uppercase;letter-spacing:.12em;color:var(--grey)}
footer .fbrand{display:flex;align-items:center;gap:.5rem}
footer .social{display:flex;flex-wrap:wrap;gap:1rem 1.4rem}
footer a:hover{color:var(--sand)}
@media(min-width:760px){footer{flex-direction:row;justify-content:space-between;align-items:center;padding:3rem 2.2rem}}
.madeby a{color:var(--sand);border-bottom:1px solid rgba(212,184,150,.35)}

@media(prefers-reduced-motion:reduce){.acard{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}