/* Agate blog — shared stylesheet for the index and every post.
   One file so posts stay small and an automation only has to fill content.
   All colours verified against WCAG 2.1 AA (2026-09-28). */

:root{
  --blue:#0a1222;--navy:#0a1222;--deep:#070d1b;--cream:#F9F8F6;
  --text-dark:#0f172a;--text-mid:#475569;--muted-light:#5a6a7d;--muted-dark:#8593a6;
  --border:#e2e8f0;--bronze:#8B6914;--bronze-lt:#c19a4e;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'DM Sans',system-ui,sans-serif;color:var(--text-dark);background:var(--cream);line-height:1.6;-webkit-font-smoothing:antialiased;min-height:100vh;display:flex;flex-direction:column}
::selection{background:var(--blue);color:#fff}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
main{flex:1 0 auto}
h1,h2,h3{font-family:'Instrument Serif',Georgia,serif;font-weight:400;line-height:1.1;letter-spacing:-.01em}
.container{max-width:1100px;margin:0 auto;padding:0 24px}
.narrow{max-width:760px;margin:0 auto}
.eyebrow{font-size:.72rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--bronze)}
.skip-link{position:absolute;top:-44px;left:8px;background:var(--blue);color:#fff;padding:10px 18px;border-radius:6px;font-weight:500;font-size:.92rem;z-index:1000;transition:top .15s ease}
.skip-link:focus{top:8px;outline:2px solid #fff;outline-offset:2px}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:#000;border-bottom:1px solid rgba(255,255,255,.08)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.wordmark{font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:#fff;font-size:1.02rem}
.wordmark b{color:var(--bronze-lt)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{color:#cbd5e1;font-size:.9rem;font-weight:500;display:inline-block;padding:3px 0;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a.nav-cta{background:#fff;color:#0a1222;height:42px;padding:0 20px;display:inline-flex;align-items:center;border-radius:7px;font-weight:600}
.nav-links a.nav-cta:hover{background:var(--bronze-lt);color:#0a1222}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:1.3rem;cursor:pointer}

/* blog index hero */
.blog-hero{position:relative;background:var(--navy);color:#fff;padding:96px 0 84px;overflow:hidden;min-height:380px;display:flex;align-items:center}
.blog-hero-bg{position:absolute;inset:0;background:url("/assets/images/hero-agate.jpg") center/cover no-repeat;background-image:image-set(url("/assets/images/hero-agate.webp") type("image/webp"),url("/assets/images/hero-agate.jpg") type("image/jpeg"));transform:scale(1.06)}
.blog-hero-veil{position:absolute;inset:0;background:linear-gradient(105deg,rgba(10,18,34,.95) 0%,rgba(10,18,34,.86) 48%,rgba(10,18,34,.6) 100%)}
.blog-hero-atmos{position:absolute;inset:-12%;pointer-events:none;background:conic-gradient(from 0deg at 32% 58%,transparent 0deg,rgba(139,105,20,.20) 70deg,transparent 152deg,rgba(255,245,220,.12) 244deg,transparent 322deg);animation:shimmer 46s linear infinite;mix-blend-mode:screen;filter:blur(64px)}
@keyframes shimmer{to{transform:rotate(360deg)}}
.blog-hero .container{position:relative;z-index:2}
.blog-hero .eyebrow{color:var(--bronze-lt)}
.blog-hero h1{font-size:clamp(2.2rem,4.8vw,3.4rem);color:#f8fafc;margin:14px 0 16px}
.blog-hero h1 i{font-style:italic;background:linear-gradient(92deg,var(--bronze-lt),#f0dfb8);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.blog-hero p{color:#c3cbd6;font-size:1.05rem;max-width:56ch;line-height:1.65}

/* article cards */
.latest{padding:64px 0 24px}
.latest h2,.topics h2{font-family:'DM Sans',sans-serif;font-size:.78rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-light);margin-bottom:24px}
.post-card{position:relative;overflow:hidden;display:grid;grid-template-columns:300px 1fr;gap:0;background:#fff;border:1px solid var(--border);border-radius:14px;margin-bottom:22px;transition:transform .26s cubic-bezier(.23,1,.32,1),box-shadow .26s,border-color .26s}
.post-card::before{content:"";position:absolute;inset:0;background:radial-gradient(240px circle at var(--mx,50%) var(--my,50%),rgba(139,105,20,.10),transparent 62%);opacity:0;transition:opacity .3s;pointer-events:none}
.post-card:hover,.post-card:focus-visible{transform:translateY(-6px);box-shadow:0 26px 52px rgba(15,23,42,.14),0 4px 12px rgba(15,23,42,.06);border-color:var(--bronze);outline:none}
.post-card:hover::before{opacity:1}
.post-card-img{position:relative;min-height:220px;background:var(--navy) center/cover no-repeat}
.post-card-body{padding:28px 30px 26px;display:flex;flex-direction:column}
.post-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:.76rem;margin-bottom:12px}
.post-meta .cat{font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--bronze)}
.post-meta .sep{color:var(--muted-light)}
.post-meta time,.post-meta .rt{color:var(--muted-light)}
.post-card h3{font-size:1.5rem;line-height:1.2;margin-bottom:10px;color:var(--text-dark)}
.post-card p{color:var(--text-mid);font-size:.97rem;line-height:1.65}
.post-card .go{margin-top:auto;padding-top:18px;font-size:.88rem;font-weight:600;color:var(--blue);display:flex;align-items:center;gap:7px}
.post-card .go span{color:var(--bronze);transition:transform .26s cubic-bezier(.23,1,.32,1)}
.post-card:hover .go span{transform:translateX(6px)}

/* pull quote */
.pullquote{background:var(--deep);color:#fff;padding:64px 0;margin:36px 0 0}
.pullquote blockquote{font-family:'Instrument Serif',Georgia,serif;font-size:clamp(1.5rem,3vw,2.1rem);line-height:1.3;color:#f8fafc;max-width:24ch}
.pullquote cite{display:block;margin-top:18px;font-family:'DM Sans',sans-serif;font-style:normal;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:var(--bronze-lt)}

/* topics */
.topics{padding:64px 0 72px}
.topic-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.topic{background:#fff;border:1px solid var(--border);border-top:3px solid var(--blue);border-radius:12px;padding:24px}
.topic h3{font-size:1.2rem;margin-bottom:8px;color:var(--text-dark)}
.topic p{font-size:.92rem;color:var(--text-mid);line-height:1.6}

/* ===== article page ===== */
.article-hero{background:var(--navy);color:#fff;padding:60px 0 52px}
.article-breadcrumb{font-size:.8rem;color:#9fb0c4;margin-bottom:18px}
.article-breadcrumb a{color:var(--bronze-lt)}
.article-breadcrumb a:hover{text-decoration:underline}
.article-category{font-size:.72rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--bronze-lt);margin-bottom:12px}
.article-hero h1{font-size:clamp(2rem,4.4vw,3rem);color:#f8fafc;margin-bottom:16px}
.article-dek{color:#c3cbd6;font-size:1.06rem;line-height:1.6;max-width:58ch}
.article-meta{margin-top:20px;font-size:.84rem;color:#9fb0c4;display:flex;align-items:center;gap:10px}
.image-break{margin:0;background:var(--navy)}
.image-break img{width:100%;max-height:460px;object-fit:cover}
.article-body{padding:56px 0 64px}
.article-body h2{font-size:clamp(1.5rem,2.6vw,1.95rem);margin:44px 0 14px;color:var(--text-dark)}
.article-body h2:first-of-type{margin-top:0}
.article-body h3{font-family:'DM Sans',sans-serif;font-size:1.02rem;font-weight:600;margin:28px 0 8px;color:var(--text-dark)}
.article-body p{font-size:1.04rem;line-height:1.75;color:#1f2b3d;margin-bottom:18px}
.article-body ul,.article-body ol{margin:0 0 20px 22px}
.article-body li{font-size:1.02rem;line-height:1.7;color:#1f2b3d;margin-bottom:9px}
.article-body a{color:var(--blue);border-bottom:1px solid rgba(139,105,20,.45)}
.article-body a:hover{border-bottom-color:var(--bronze)}
.article-body strong{font-weight:600;color:var(--text-dark)}
.key-takeaway{background:#fff;border:1px solid var(--border);border-left:4px solid var(--bronze);border-radius:10px;padding:24px 26px;margin:38px 0}
.key-takeaway .kt-label{font-size:.7rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--bronze);margin-bottom:8px}
.key-takeaway p{margin:0;font-size:1.02rem;line-height:1.7}
.faq{margin-top:48px;padding-top:12px;border-top:2px solid var(--border)}
.faq h2{margin-top:26px}
.faq h3{font-family:'DM Sans',sans-serif;font-size:1.04rem;font-weight:600;margin:26px 0 8px;color:var(--text-dark)}
.faq p{margin-bottom:0}
.sources{margin-top:44px;padding-top:20px;border-top:1px solid var(--border);font-size:.88rem;color:var(--muted-light)}
.sources h2{font-family:'DM Sans',sans-serif;font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-light);margin-bottom:10px}
.sources a{color:var(--text-mid);border-bottom:1px solid var(--border)}
.sources li{margin-bottom:6px;line-height:1.55}

/* cta */
.article-cta{background:var(--deep);color:#fff;padding:64px 0 68px;text-align:center}
.article-cta .eyebrow{color:var(--bronze-lt)}
.article-cta h2{font-size:clamp(1.7rem,3.2vw,2.3rem);color:#f8fafc;margin:12px 0 14px}
.article-cta p{color:#c3cbd6;max-width:52ch;margin:0 auto 26px}
.btn{display:inline-block;background:#fff;color:#0a1222;padding:14px 30px;border-radius:8px;font-weight:600;font-size:.96rem;transition:transform .2s,background .2s}
.btn:hover{background:var(--bronze-lt);transform:translateY(-2px)}

/* footer */
.footer{background:#000;color:#94a3b8;padding:36px 0 24px;font-size:.86rem;flex:none}
.foot-row{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:16px}
.disclaimer{border-top:1px solid rgba(255,255,255,.1);padding-top:14px;color:var(--muted-dark);font-size:.8rem;line-height:1.6}
.disclaimer a{color:var(--muted-dark);border-bottom:1px solid rgba(255,255,255,.2)}
.footer p,.footer p a{color:var(--muted-dark)}

@media (max-width:820px){
  .post-card{grid-template-columns:1fr}
  .post-card-img{min-height:190px}
}
@media (max-width:760px){
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:#000;flex-direction:column;gap:0;padding:12px 24px 20px;border-bottom:1px solid rgba(255,255,255,.1)}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 0;width:100%}
  .nav-toggle{display:block}
  .blog-hero{padding:64px 0 56px;min-height:320px}
  .article-hero{padding:44px 0 40px}
  .article-body{padding:40px 0 48px}
  .image-break img{max-height:260px}
}
@media (prefers-reduced-motion:reduce){
  .blog-hero-atmos{animation:none;opacity:.5}
  .post-card,.post-card .go span,.btn{transition:none}
}