:root{--navy:#1f1f55;--navy-2:#222054;--navy-3:#16163e;--purple:#6855f6;--purple-2:#5546d6;--purple-3:#4536b8;--lavender:#d9d6ed;--lavender-soft:#eeebff;--line:#e5e7ef;--line-2:#d4d6e0;--slate:#5b5d72;--slate-2:#8b8da3}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--navy);background:#fff;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.font-mono{font-family:'JetBrains Mono',ui-monospace,monospace}
.display{font-family:'Poppins','Inter',system-ui,sans-serif;letter-spacing:-.018em}
.editorial{font-family:'Source Serif 4',Georgia,serif;letter-spacing:-.01em}
a{color:var(--purple)}a:hover{color:var(--purple-2)}
.nav-wrap{transition:box-shadow .25s ease,border-color .25s ease}
.nav-wrap.scrolled{border-bottom-color:var(--line);box-shadow:0 2px 8px -4px rgba(31,31,85,.08)}
.no-scrollbar{-ms-overflow-style:none;scrollbar-width:none}
.no-scrollbar::-webkit-scrollbar{display:none}
*:focus-visible{outline:2px solid var(--purple);outline-offset:3px;border-radius:4px}
.tag{display:inline-flex;align-items:center;font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--purple)}
.tag::before{content:"";display:inline-block;width:6px;height:6px;border-radius:9999px;background:var(--purple);margin-right:8px}
.hero-gradient{background:radial-gradient(60% 50% at 80% 10%,rgba(104,85,246,.18),transparent 60%),radial-gradient(50% 40% at 5% 100%,rgba(217,214,237,.6),transparent 60%),linear-gradient(180deg,#fafbff 0%,#fff 100%)}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:14px;font-weight:600;padding:12px 22px;border-radius:9999px;transition:all .15s ease;white-space:nowrap}
.btn-primary{background:var(--purple);color:#fff}
.btn-primary:hover{background:var(--purple-2);color:#fff;transform:translateY(-1px)}
.btn-secondary{background:#fff;color:var(--navy);border:1px solid var(--line-2)}
.btn-secondary:hover{border-color:var(--navy);color:var(--navy)}
.btn-ghost{color:var(--navy)}
.btn-ghost:hover{background:var(--lavender-soft);color:var(--navy)}
/* ===== blog cards (reusable) ===== */
.post-grid{display:grid;grid-template-columns:1fr;gap:28px}
@media(min-width:640px){.post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.post-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}}
.post-card{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s ease,border-color .3s ease}
.post-card:hover{transform:translateY(-3px);box-shadow:0 18px 40px -22px rgba(31,31,85,.35);border-color:var(--line-2)}
.post-card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--lavender-soft)}
.post-card__media img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.post-card:hover .post-card__media img{transform:scale(1.04)}
.post-card__badge{position:absolute;top:14px;left:14px;display:inline-flex;align-items:center;gap:6px;padding:6px 12px;background:#fff;color:var(--navy);font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;border-radius:9999px;box-shadow:0 4px 14px -6px rgba(31,31,85,.3)}
.post-card__badge::before{content:"";width:6px;height:6px;border-radius:9999px;background:var(--purple)}
.post-card__body{display:flex;flex-direction:column;flex:1;padding:22px 24px 24px}
.post-card__meta{font-size:12px;color:var(--slate-2);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.post-card__meta span.dot{width:4px;height:4px;border-radius:9999px;background:var(--line-2)}
.post-card__title{font-family:'Poppins','Inter',sans-serif;font-weight:700;font-size:19px;line-height:1.28;letter-spacing:-.015em;margin-top:10px}
.post-card__title a{color:var(--navy);text-decoration:none}
.post-card:hover .post-card__title a{color:var(--purple)}
.post-card__excerpt{font-family:'Source Serif 4',Georgia,serif;font-size:15.5px;line-height:1.6;color:#4d5064;margin-top:10px}
.post-card__cta{margin-top:auto;padding-top:18px;font-size:13.5px;font-weight:600;color:var(--purple);display:inline-flex;align-items:center;gap:6px}
.post-card:hover .post-card__cta{gap:10px}
.post-card__cta span{transition:margin .2s ease}
/* ===== article prose ===== */
.article-shell{max-width:800px;margin-left:auto;margin-right:auto}
.prose-ts h2{font-family:'Poppins','Inter',sans-serif;font-weight:700;color:var(--navy);font-size:28px;line-height:1.18;letter-spacing:-.015em;margin-top:52px;margin-bottom:14px}
.prose-ts h2:first-child{margin-top:0}
.prose-ts h3{font-family:'Poppins','Inter',sans-serif;font-weight:600;color:var(--navy);font-size:20px;line-height:1.3;margin-top:32px;margin-bottom:8px}
.prose-ts p{font-family:'Source Serif 4',Georgia,serif;color:#44475c;font-size:18.5px;line-height:1.75;margin-bottom:18px}
.prose-ts ul{list-style:none;padding:0;margin:10px 0 20px;display:flex;flex-direction:column;gap:10px}
.prose-ts ul li{position:relative;padding-left:24px;font-family:'Source Serif 4',Georgia,serif;color:#44475c;font-size:17.5px;line-height:1.65}
.prose-ts ul li::before{content:"";position:absolute;left:4px;top:12px;width:7px;height:7px;background:var(--purple);border-radius:9999px}
.prose-ts strong{color:var(--navy);font-weight:600}
.prose-ts a{color:var(--purple);text-decoration:underline;text-underline-offset:3px}
.prose-ts a.btn{text-decoration:none}
.prose-ts a.btn-primary,.prose-ts a.btn-primary:hover{color:#fff}
.prose-ts a.btn-secondary,.prose-ts a.btn-ghost{color:var(--navy)}
.pullquote{margin:34px 0;padding:0 0 0 22px;border-left:3px solid var(--purple)}
.pullquote p{font-family:'Poppins','Inter',sans-serif;font-weight:600;font-size:22px;line-height:1.35;letter-spacing:-.015em;color:var(--navy);margin:0}
.statstrip{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:30px 0 34px}
@media(min-width:768px){.statstrip{grid-template-columns:repeat(4,minmax(0,1fr))}}
.stat-card{background:#fafafb;border:1px solid var(--line);border-radius:14px;padding:20px}
.stat-num{font-family:'Poppins','Inter',sans-serif;font-weight:700;color:var(--navy);font-size:26px;line-height:1;letter-spacing:-.02em}
.stat-label{margin-top:8px;font-size:12.5px;color:var(--slate);line-height:1.45}
.callout{margin:26px 0;padding:22px 24px;background:var(--lavender-soft);border-left:3px solid var(--purple);border-radius:10px}
.callout p{margin:0;color:var(--navy);font-size:17px}
.callout p+p{margin-top:8px}
.sources{margin-top:22px;padding-top:0}
.sources ol{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px;counter-reset:src}
.sources li{position:relative;padding-left:34px;font-size:14.5px;line-height:1.55;color:#4d5064;counter-increment:src}
.sources li::before{content:counter(src);position:absolute;left:0;top:1px;width:22px;height:22px;border-radius:9999px;background:var(--lavender-soft);color:var(--purple-3);font-family:'JetBrains Mono',monospace;font-size:11px;display:inline-flex;align-items:center;justify-content:center}
.editorial-note{margin-top:26px;padding-top:20px;border-top:1px solid var(--line);font-size:13.5px;line-height:1.6;color:var(--slate-2);font-style:italic}
/* article hero */
.article-hero{position:relative;min-height:520px;display:flex;align-items:flex-end;overflow:hidden;background:var(--navy-3)}
.article-hero__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.article-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(22,22,62,.92) 0%,rgba(22,22,62,.72) 42%,rgba(22,22,62,.34) 100%)}
.article-hero__inner{position:relative;z-index:2;width:100%}
.hero-badge{display:inline-flex;align-items:center;gap:7px;padding:6px 13px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);color:#fff;font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;border-radius:9999px;backdrop-filter:blur(6px)}
.hero-badge::before{content:"";width:6px;height:6px;border-radius:9999px;background:#a99eff}
.crumbs{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-family:'JetBrains Mono',monospace;font-size:12px}
.crumbs a{color:rgba(255,255,255,.65);text-decoration:none}
.crumbs a:hover{color:#fff}
.crumbs .sep{color:rgba(255,255,255,.3)}
.crumbs [aria-current]{color:#fff;font-weight:600}
/* cta band */
.cta-band{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-3) 100%);border-radius:20px;color:#fff;padding:44px 34px;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;background:radial-gradient(circle,rgba(104,85,246,.5),transparent 70%);border-radius:9999px}
.aside-card{background:#fafafb;border:1px solid var(--line);border-radius:16px;padding:24px}
@media(min-width:1024px){.stickyside{position:sticky;top:150px}}
.reveal{opacity:0;transform:translateY(8px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.post-card,.post-card__media img{transition:none}}

/* header CTA — matches index.html .btn-primary */
.btn-nav{background:var(--purple);color:#fff;transition:transform .15s ease,box-shadow .2s ease,background .2s ease;box-shadow:0 1px 0 rgba(0,0,0,.05),0 8px 24px -10px rgba(104,85,246,.55)}
.btn-nav:hover{background:var(--purple-2);color:#fff;transform:translateY(-1px);box-shadow:0 1px 0 rgba(0,0,0,.05),0 14px 32px -12px rgba(104,85,246,.7)}