:root{--navy:#0f172a;--blue:#2563eb;--gold:#f59e0b;--ink:#1f2937;--muted:#64748b;--paper:#fff;--wash:#f8fafc;--line:#e2e8f0;--soft:#eff6ff}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--wash);line-height:1.65}img{max-width:100%;height:auto}a{color:var(--blue)}a:focus-visible{outline:3px solid var(--gold);outline-offset:4px}.skip{position:absolute;top:-60px;left:12px;background:#fff;color:var(--navy);padding:10px 14px;border-radius:8px;z-index:5}.skip:focus{top:12px}.site-header{background:var(--navy);color:#fff}.site-header nav{max-width:1120px;margin:auto;padding:20px;display:flex;justify-content:space-between;align-items:center;gap:20px}.brand{font-size:1.1rem;font-weight:800;color:#fff;text-decoration:none}.brand span{color:#fbbf24}.brand{font-size:0;width:260px;height:68px;padding:5px 10px;background:#fff url('/images/learn-andrew-gurry-logo.png') center/contain no-repeat;border-radius:12px;flex:0 1 260px}.brand span{display:none}.nav-links{display:flex;gap:22px;flex-wrap:wrap;justify-content:flex-end}.nav-links a{color:#cbd5e1;text-decoration:none}.hero{background:var(--navy);color:#fff}.hero-inner{max-width:1120px;margin:auto;padding:72px 20px 90px;display:grid;grid-template-columns:1.3fr .7fr;gap:50px;align-items:center}.eyebrow{color:#fbbf24;font-weight:800;text-transform:uppercase;letter-spacing:.08em;font-size:.82rem}h1{font-size:clamp(2.55rem,7vw,5.4rem);line-height:1;letter-spacing:-.05em;margin:16px 0 22px}.lead{font-size:1.2rem;color:#cbd5e1;max-width:760px}.principle{background:#fff;color:var(--navy);padding:30px;border-radius:24px;box-shadow:0 24px 60px #0006}.principle strong{display:block;font-size:1.45rem;margin-bottom:10px}.principle p{margin:0;color:#475569}.button{display:inline-block;background:var(--blue);color:#fff;text-decoration:none;font-weight:800;padding:12px 18px;border-radius:10px;margin-top:12px}.button:hover{background:#1d4ed8}.section{max-width:1120px;margin:auto;padding:64px 20px}.section h2,.library-hero h1{color:var(--navy)}.section h2{font-size:clamp(2rem,5vw,3.1rem);line-height:1.1;letter-spacing:-.035em;margin:0 0 12px}.intro{font-size:1.08rem;color:var(--muted);max-width:820px;margin:0 0 30px}.subject-grid,.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.subject-card,.article-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}.subject-card{padding:25px}.subject-card h3{margin:0 0 8px;color:var(--navy)}.subject-card p{margin:0;color:var(--muted)}.article-card{display:flex;flex-direction:column}.card-image{display:block;aspect-ratio:16/9;background:#e2e8f0;overflow:hidden}.card-image img{width:100%;height:100%;object-fit:cover;display:block}.card-copy{padding:22px}.card-meta{color:#475569;font-size:.84rem;font-weight:800;text-transform:uppercase;letter-spacing:.04em}.article-card h3{font-size:1.2rem;line-height:1.25;margin:8px 0}.article-card h3 a{color:var(--navy);text-decoration:none}.article-card p{color:var(--muted);margin:0}.question{background:var(--soft);border-left:6px solid var(--blue);border-radius:18px;padding:30px}.library-hero{max-width:1120px;margin:auto;padding:56px 20px 30px}.library-hero h1{font-size:clamp(2.4rem,6vw,4.5rem);margin:0 0 18px}.category-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.category-links a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 13px;text-decoration:none;font-weight:700}.category-section{scroll-margin-top:20px}.category-title{display:flex;align-items:end;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);padding-bottom:10px;margin-bottom:20px}.category-title h2{margin:0}.article{max-width:800px;margin:auto;padding:52px 20px 80px}.breadcrumbs{font-size:.92rem;margin-bottom:22px}.article h1{color:var(--navy);font-size:clamp(2.35rem,6vw,4.25rem);margin:0 0 18px}.article-meta{color:var(--muted);font-weight:700;margin-bottom:28px}.featured{width:100%;border-radius:20px;margin:0 0 34px;max-height:520px;object-fit:cover}.archive-note{background:#fff7ed;border-left:5px solid #ea580c;border-radius:12px;padding:18px;margin:0 0 32px}.archive-note strong{display:block;color:#9a3412}.article-body{font-size:1.06rem}.article-body h2{font-size:1.75rem;line-height:1.2;color:var(--navy);margin-top:2.2rem}.article-body h3{font-size:1.35rem;color:var(--navy);margin-top:1.8rem}.article-body p,.article-body li{max-width:75ch}.article-body blockquote{border-left:4px solid var(--blue);margin-left:0;padding-left:20px;color:#475569}.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4rem 0}.article-body pre{overflow:auto;background:#111827;color:#e5e7eb;padding:18px;border-radius:12px}.article-body table{display:block;overflow-x:auto;border-collapse:collapse}.article-body th,.article-body td{border:1px solid var(--line);padding:10px}.affiliate-note{background:var(--soft);padding:16px;border-radius:12px;margin-top:36px;font-size:.92rem}footer{background:var(--navy);color:#cbd5e1;padding:30px 20px;text-align:center}footer a{color:#93c5fd}
@media(max-width:800px){.brand{width:210px;height:58px;flex-basis:210px}.hero-inner,.subject-grid,.article-grid{grid-template-columns:1fr}.hero-inner{padding-top:54px}.principle{box-shadow:none}.site-header nav{align-items:flex-start}.article-card.compact{display:grid;grid-template-columns:120px 1fr}.article-card.compact .card-image{height:100%;aspect-ratio:auto}.article-card.compact .card-copy{padding:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}