/* INVOKER — Insights (blog) shared stylesheet.
   Self-contained: pair with assets/fonts.css. No Tailwind dependency. */

:root{
  --canvas:#FBFAF8; --paper:#fff; --ink:#0B1220; --ink2:#111A2E;
  --accent:#1D3FD1; --accentdk:#162EA0; --bronze:#9A7B4F; --bronzedk:#7A5E33;
  --slate:#3A4658; --muted:#5B6675; --line:#ECE9E3;
  --maxw:1120px; --measure:720px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0; background:var(--canvas); color:#1E2735;
  font-family:'Hanken Grotesk',ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;
  -webkit-font-smoothing:antialiased; line-height:1.6;
}
.font-display{font-family:'Newsreader',Georgia,'Times New Roman',serif;font-optical-sizing:auto;}
img{max-width:100%;display:block;}
::selection{background:rgba(29,63,209,.15);color:var(--ink);}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}
a{color:var(--accent);text-decoration:none;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 1.25rem;}
@media(min-width:640px){.wrap{padding:0 2rem;}}
.eyebrow{font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;font-weight:700;color:var(--bronzedk);}
.hairline{height:1px;background:linear-gradient(90deg,rgba(154,123,79,.55),rgba(154,123,79,0));border:0;margin:0;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(251,250,248,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:64px;}
.wordmark{display:inline-flex;align-items:center;gap:.55rem;font-weight:800;letter-spacing:.18em;color:var(--ink);font-size:.92rem;}
.wordmark svg{height:26px;width:26px;}
.h-nav{display:none;gap:1.9rem;font-size:.9rem;font-weight:500;}
.h-nav a{display:inline-flex;align-items:center;min-height:44px;color:var(--slate);transition:color .2s;}
.h-nav a:hover{color:var(--ink);}
@media(min-width:860px){.h-nav{display:flex;}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border-radius:9999px;padding:.6rem 1.15rem;font-size:.9rem;font-weight:600;min-height:44px;cursor:pointer;transition:filter .2s,box-shadow .2s,transform .15s,border-color .2s,background-color .2s,color .2s;}
.btn svg{height:1rem;width:1rem;}
.btn-primary{color:#fff;background-image:linear-gradient(180deg,#2A4BE0,#1B3AC4);box-shadow:0 10px 24px -12px rgba(29,63,209,.7),inset 0 1px 0 rgba(255,255,255,.18);}
.btn-primary:hover{filter:brightness(1.06);}
.btn-primary:active{transform:translateY(1px) scale(.99);}
.btn-ghost{color:var(--ink);border:1px solid rgba(11,18,32,.15);background:transparent;}
.btn-ghost:hover{color:var(--accent);border-color:rgba(29,63,209,.45);background:rgba(29,63,209,.04);}

/* ---------- breadcrumb ---------- */
.breadcrumb{font-size:.8rem;color:var(--muted);padding:1.5rem 0 0;display:flex;flex-wrap:wrap;gap:.45rem;align-items:center;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb span[aria-current]{color:var(--ink);font-weight:600;}
.breadcrumb .sep{color:rgba(11,18,32,.3);}

/* ---------- article ---------- */
.article{max-width:var(--measure);margin:0 auto;padding:1.5rem 0 4rem;}
.article-meta{display:flex;flex-wrap:wrap;gap:.6rem 1rem;align-items:center;margin-bottom:1.1rem;font-size:.8rem;color:var(--muted);}
.article-meta .dot{color:var(--bronze);}
.article h1{font-family:'Newsreader',Georgia,serif;font-weight:700;color:var(--ink);font-size:clamp(2rem,5.2vw,3.1rem);line-height:1.07;letter-spacing:-.015em;margin:.4rem 0 0;}
.article .lead{font-size:1.2rem;line-height:1.6;color:var(--slate);margin:1.3rem 0 0;}
.article-band{margin:2.2rem 0;}
.article-band:empty{border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.article-band img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:1rem;}
.prose{font-size:1.06rem;color:#27303f;}
.prose h2{font-family:'Newsreader',Georgia,serif;font-weight:700;color:var(--ink);font-size:clamp(1.5rem,3.2vw,2rem);line-height:1.15;letter-spacing:-.01em;margin:2.6rem 0 .9rem;}
.prose h3{font-weight:700;color:var(--ink);font-size:1.2rem;margin:1.8rem 0 .6rem;}
.prose p{margin:0 0 1.15rem;}
.prose a{text-decoration:underline;text-decoration-color:rgba(29,63,209,.35);text-underline-offset:3px;transition:text-decoration-color .2s;}
.prose a:hover{text-decoration-color:var(--accent);}
.prose strong{color:var(--ink);font-weight:700;}
.prose ul{margin:0 0 1.15rem;padding:0;list-style:none;}
.prose ul li{position:relative;padding-left:1.4rem;margin:.5rem 0;}
.prose ul li::before{content:'›';position:absolute;left:0;color:var(--bronze);font-weight:700;}
.prose ol{margin:0 0 1.15rem;padding-left:1.5rem;}
.prose ol li{margin:.55rem 0;padding-left:.3rem;}
.prose ol li::marker{color:var(--bronze);font-weight:700;}

/* takeaways */
.takeaways{background:var(--paper);border:1px solid var(--line);border-radius:1rem;padding:1.6rem 1.7rem;margin:2.4rem 0;box-shadow:0 18px 40px -30px rgba(11,18,32,.25);}
.takeaways h2{font-size:.72rem!important;letter-spacing:.2em;text-transform:uppercase;font-weight:700;color:var(--bronzedk);margin:0 0 .9rem!important;font-family:inherit!important;}
.takeaways ul{margin:0;padding:0;list-style:none;}
.takeaways li{position:relative;padding-left:1.7rem;margin:.6rem 0;color:var(--slate);}
.takeaways li::before{content:'';position:absolute;left:0;top:.5em;height:.5rem;width:.5rem;border-radius:9999px;background:var(--bronze);}

/* article FAQ */
.afaq{margin:2.6rem 0 0;}
.afaq h2{font-family:'Newsreader',Georgia,serif;font-weight:700;color:var(--ink);font-size:1.6rem;margin:0 0 .4rem;}
.afaq details{border-top:1px solid var(--line);}
.afaq details:last-of-type{border-bottom:1px solid var(--line);}
.afaq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:1rem;align-items:flex-start;padding:1rem 0;font-weight:600;color:var(--ink);min-height:44px;}
.afaq summary::-webkit-details-marker{display:none;}
.afaq summary:hover{color:var(--accent);}
.afaq .chev{flex:none;margin-top:.2rem;color:var(--accent);transition:transform .25s ease;}
.afaq details[open] .chev{transform:rotate(180deg);}
.afaq .a{padding:0 0 1.1rem;color:var(--muted);max-width:64ch;}

/* inline CTA + end CTA band */
.cta-band{background:var(--ink);color:#fff;border-radius:1.2rem;padding:2.2rem;margin:2.8rem 0 0;text-align:center;position:relative;overflow:hidden;}
.cta-band::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 60% 80% at 50% 120%,rgba(29,63,209,.4),transparent 70%);}
.cta-band > *{position:relative;}
.cta-band p{font-family:'Newsreader',Georgia,serif;font-style:italic;font-size:1.35rem;line-height:1.4;color:rgba(255,255,255,.92);margin:0 auto 1.4rem;max-width:30rem;}

/* related */
.related{max-width:var(--maxw);margin:0 auto;padding:3rem 0 0;}
.related > .eyebrow{display:flex;align-items:center;gap:.6rem;}
.related > .eyebrow::after{content:'';height:1px;flex:1;background:var(--line);}
.grid{display:grid;gap:1.25rem;margin-top:1.4rem;}
.grid > *{min-width:0;}
@media(min-width:680px){.grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:980px){.grid-3{grid-template-columns:repeat(3,1fr);}}

/* cards (hub + related) */
.post-card{display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);border-radius:1rem;overflow:hidden;transition:border-color .25s,box-shadow .25s,transform .25s;}
.post-card:hover{border-color:rgba(29,63,209,.35);box-shadow:0 18px 40px -24px rgba(11,18,32,.28);transform:translateY(-3px);}
.post-cover{height:150px;position:relative;background:linear-gradient(135deg,#0B1220 0%,#162EA0 55%,#1D3FD1 100%);}
.post-cover.c2{background:linear-gradient(135deg,#111A2E 0%,#3A4658 50%,#9A7B4F 120%);}
.post-cover.c3{background:linear-gradient(135deg,#0B1220 0%,#1D3FD1 70%,#19B6E3 130%);}
.post-cover::after{content:'';position:absolute;inset:0;background-image:linear-gradient(to right,rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.06) 1px,transparent 1px);background-size:28px 28px;mask-image:radial-gradient(ellipse 90% 80% at 30% 20%,#000,transparent 75%);}
.post-cover .mark{position:absolute;right:14px;bottom:12px;color:rgba(255,255,255,.85);font-weight:800;letter-spacing:.16em;font-size:.62rem;}
.post-body{padding:1.3rem 1.4rem 1.5rem;display:flex;flex-direction:column;flex:1;}
.post-body .eyebrow{font-size:.66rem;}
.post-body h2,.post-body h3{font-weight:700;color:var(--ink);font-size:1.12rem;line-height:1.3;margin:.55rem 0 0;overflow-wrap:anywhere;}
.post-body h2 a,.post-body h3 a{color:inherit;}
.post-body h2 a:hover,.post-body h3 a:hover{color:var(--accent);}
.post-body .dek{color:var(--muted);font-size:.92rem;margin:.55rem 0 0;flex:1;}
.post-body .more{margin-top:1rem;font-weight:600;font-size:.9rem;color:var(--accent);}

/* real card images (16:9 cover) */
.post-cover{aspect-ratio:16/9;height:auto;}
.post-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;}
.post-cover:has(img)::after{display:none;}

/* category filter row */
.filters{display:flex;flex-wrap:wrap;gap:.5rem;margin:1.4rem 0 .3rem;}
.filter-chip{display:inline-flex;align-items:center;min-height:44px;padding:.5rem 1rem;border-radius:9999px;border:1px solid var(--line);background:var(--paper);color:var(--slate);font-size:.85rem;font-weight:600;cursor:pointer;transition:color .2s,border-color .2s,background-color .2s;}
.filter-chip:hover{color:var(--accent);border-color:rgba(29,63,209,.4);}
.filter-chip[aria-pressed="true"]{color:#fff;background:var(--ink);border-color:var(--ink);}
.filter-chip:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.hub-empty{display:none;color:var(--muted);padding:2rem 0;font-size:1rem;}
.hub-empty.show{display:block;}
.hub-empty button{color:var(--accent);font-weight:600;background:none;border:none;cursor:pointer;font:inherit;padding:0;}
.hub-empty button:hover{text-decoration:underline;}

/* end CTA band — heading + actions */
.cta-band h2{font-family:'Newsreader',Georgia,serif;font-weight:700;color:#fff;font-size:clamp(1.6rem,3.6vw,2.1rem);line-height:1.12;letter-spacing:-.01em;margin:0 0 .3rem;}
.cta-actions{display:flex;flex-wrap:wrap;gap:.7rem;justify-content:center;margin-top:.2rem;}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.32);background:transparent;}
.cta-band .btn-ghost:hover{color:#fff;border-color:rgba(255,255,255,.6);background:rgba(255,255,255,.08);}

/* hub hero */
.hub-hero{padding:3.5rem 0 1rem;}
.hub-hero h1{font-family:'Newsreader',Georgia,serif;font-weight:700;color:var(--ink);font-size:clamp(2.2rem,5.5vw,3.4rem);line-height:1.05;letter-spacing:-.015em;margin:1rem 0 0;}
.hub-hero p{font-size:1.15rem;color:var(--slate);max-width:42rem;margin:1.1rem 0 0;}
.hub-list{padding:2rem 0 4rem;}

/* footer */
.site-footer{background:var(--ink);color:rgba(255,255,255,.6);margin-top:1rem;}
.site-footer .row{display:flex;flex-direction:column;gap:1.5rem;padding:3rem 0;}
@media(min-width:760px){.site-footer .row{flex-direction:row;align-items:center;justify-content:space-between;}}
.site-footer .wordmark{color:#fff;}
.site-footer .wordmark svg circle:first-of-type{stroke:#5b7bff;}
.site-footer nav{display:flex;flex-wrap:wrap;gap:.6rem 1.6rem;font-size:.88rem;}
.site-footer nav a{color:rgba(255,255,255,.7);}
.site-footer nav a:hover{color:#fff;}
.site-footer .legal{border-top:1px solid rgba(255,255,255,.1);padding:1.4rem 0 2.4rem;font-size:.74rem;color:rgba(255,255,255,.4);}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);animation:rise .7s cubic-bezier(.16,1,.3,1) forwards;}
@keyframes rise{to{opacity:1;transform:none;}}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  .post-card:hover{transform:none;}
}