*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',sans-serif;color:#2D2D2D;background:#fff;line-height:1.7}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}

:root{
  --nav:#1E2536; --blu:#4F46E5; --teal:#0EA875; --teal-l:#E3F7EF;
  --txt:#1E2536; --txt-l:#6B7488; --bg:#FAFBFF; --border:#E7E9F5; --white:#fff;
}

nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(250,251,255,.9);backdrop-filter:blur(8px);padding:0 5%;height:64px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}
.nav-logo{font-size:1.1rem;font-weight:700;color:var(--nav);font-family:'Space Grotesk',sans-serif}
.nav-logo span{color:var(--nav);font-weight:700;margin-left:.3em}
.nav-back{color:var(--txt-l);font-size:.85rem;font-weight:600}
.nav-back:hover{color:var(--blu)}

.art-hero{background:linear-gradient(180deg,#FAFBFF 0%,#F1F3FC 100%);padding:140px 5% 60px;border-bottom:1px solid var(--border)}
.art-hero-inner{max-width:780px;margin:0 auto}
.art-cats{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:1.2rem}
.acat{background:var(--teal-l);border:1px solid rgba(14,168,117,.25);color:var(--teal);font-size:.75rem;font-weight:600;padding:.3rem .8rem;border-radius:20px}
.art-hero h1{color:var(--nav);font-size:2.3rem;font-weight:700;line-height:1.25;letter-spacing:-.01em;margin-bottom:1.2rem;font-family:'Space Grotesk',sans-serif}
.art-meta{display:flex;gap:1.2rem;flex-wrap:wrap;color:var(--txt-l);font-size:.85rem}

.art-body{max-width:720px;margin:0 auto;padding:3.5rem 5%}
.art-body h2{color:var(--nav);font-size:1.4rem;font-weight:800;margin:2.2rem 0 .9rem;letter-spacing:-.01em}
.art-body h3{color:var(--nav);font-size:1.1rem;font-weight:700;margin:1.6rem 0 .6rem}
.art-body p{color:var(--txt-l);font-size:1.02rem;margin-bottom:1.1rem}
.art-body strong{color:var(--txt)}
.art-body ul,.art-body ol{color:var(--txt-l);font-size:1.02rem;margin:0 0 1.1rem 1.4rem}
.art-body li{margin-bottom:.5rem}
.callout{background:var(--teal-l);border-left:4px solid var(--teal);padding:1rem 1.3rem;border-radius:6px;margin:1.6rem 0;color:var(--txt);font-size:.95rem}
.art-divider{height:1px;background:var(--border);margin:2.5rem 0}
.art-author{display:flex;gap:1rem;align-items:center;background:var(--bg);border:1px solid var(--border);border-radius:12px;padding:1.5rem}
.author-avatar{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--teal),var(--blu));color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:1.2rem;flex-shrink:0;overflow:hidden}
.author-avatar img{width:100%;height:100%;object-fit:cover}
.author-name{font-weight:700;color:var(--nav);font-size:.95rem}
.author-role{font-size:.82rem;color:var(--txt-l);margin-top:2px}
.back-cta{display:inline-block;margin-top:2.5rem;color:var(--teal);font-weight:600;font-size:.9rem}
.back-cta:hover{text-decoration:underline}

footer{background:#0A1929;padding:2rem 5%;text-align:center}
.footer-copy{color:rgba(255,255,255,.5);font-size:.8rem}
.footer-copy a{color:#4DD0E1}

@media(max-width:600px){
  .art-hero{padding:110px 5% 40px}
  .art-hero h1{font-size:1.6rem}
  .art-body{padding:2.5rem 5%}
}