:root{--navy:#10233f;--charcoal:#1f2937;--gold:#f4b942;--orange:#f59e0b;--blue:#2563eb;--steel:#64748b;--light:#f8fafc;--white:#fff;--line:#dbe4ee;--shadow:0 18px 50px rgba(15,35,63,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--charcoal);background:var(--white);line-height:1.6}a{color:inherit}.shell{width:min(1180px,calc(100% - 40px));margin:0 auto}.narrow{width:min(820px,calc(100% - 40px))}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.nav-wrap{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none}.brand-mark{width:46px;height:38px;border:3px solid var(--navy);border-radius:7px;display:grid;place-items:center;position:relative;color:var(--navy);font-weight:900;letter-spacing:-.04em}.brand-mark:after{content:"";width:14px;height:3px;background:var(--gold);position:absolute;bottom:-8px;border-radius:999px}.brand-copy{display:grid;line-height:1.05}.brand-copy strong{color:var(--navy);font-size:1.05rem}.brand-copy small{margin-top:5px;color:var(--steel);font-size:.67rem;letter-spacing:.13em}nav{display:flex;gap:20px;flex-wrap:wrap}nav a{text-decoration:none;color:#334155;font-weight:700;font-size:.92rem}nav a:hover{color:var(--blue)}
.hero{color:var(--white);background:radial-gradient(circle at 80% 10%,rgba(37,99,235,.42),transparent 34%),linear-gradient(135deg,#0b1930,var(--navy) 62%,#183b67);padding:96px 0 88px}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}.eyebrow{color:var(--orange);font-weight:900;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase}h1,h2,h3{margin:0;line-height:1.08;color:var(--navy)}.hero h1{margin-top:14px;color:var(--white);font-size:clamp(2.8rem,6vw,5rem);letter-spacing:-.045em}.hero-copy{max-width:670px;color:#dbeafe;font-size:1.18rem}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.button{display:inline-block;border-radius:10px;padding:12px 18px;font-weight:850;text-decoration:none}.button.primary{background:var(--gold);color:#172033}.button.secondary{border:1px solid rgba(255,255,255,.45);color:var(--white)}.tagline{margin-top:26px;font-size:.8rem;font-weight:900;letter-spacing:.22em;color:#bfdbfe}
.lesson-card{border-radius:18px;overflow:hidden;background:#07111f;box-shadow:0 30px 80px rgba(0,0,0,.35);transform:perspective(900px) rotateY(-4deg) rotateX(1deg)}.screen-bar{padding:13px 16px;display:flex;gap:8px;background:#111c2d}.screen-bar span{width:10px;height:10px;border-radius:50%;background:#475569}.screen-bar span:nth-child(1){background:#f59e0b}.screen-bar span:nth-child(2){background:#60a5fa}.screen-bar span:nth-child(3){background:#94a3b8}.screen-body{padding:30px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.prompt{color:#fbbf24;margin-bottom:26px}.code-line{padding:10px 0;color:#dbeafe;border-bottom:1px solid #1e293b}.code-line b{display:inline-block;width:34px;color:#60a5fa}.success{margin-top:28px;color:#86efac;font-weight:900}
.section-block{padding:82px 0;background:var(--light)}.section-heading{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin-bottom:34px;align-items:end}.section-heading h2,.confidence h2,.coming-card h2{margin-top:10px;font-size:clamp(2rem,4vw,3rem)}.section-heading p{color:var(--steel);margin:0}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.content-card,.coming-card{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:28px;box-shadow:0 10px 28px rgba(15,35,63,.05)}.content-card{text-decoration:none;transition:transform .18s ease,box-shadow .18s ease}.content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.content-card h3{margin-top:10px;font-size:1.45rem}.content-card p,.coming-card p{color:var(--steel)}.card-kicker{color:var(--blue);font-weight:900;font-size:.72rem;letter-spacing:.14em}.card-link{color:var(--blue);font-weight:850}
.confidence{padding:70px 0;background:var(--white)}.confidence-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.confidence p{color:var(--steel);font-size:1.08rem}.page-hero{padding:92px 0 76px;background:linear-gradient(180deg,#edf5ff,var(--white))}.page-hero h1{margin-top:10px;font-size:clamp(2.8rem,6vw,4.7rem)}.page-hero p{font-size:1.18rem;color:var(--steel);max-width:720px}.text-link{color:var(--blue);font-weight:850;text-decoration:none}.site-footer{background:#0b1930;color:#cbd5e1;padding:34px 0}.footer-wrap{display:flex;justify-content:space-between;gap:30px}.site-footer strong{color:var(--white)}
@media(max-width:900px){.nav-wrap{align-items:flex-start;flex-direction:column;padding:18px 0}nav{gap:12px 18px}.hero-grid,.section-heading,.confidence-grid{grid-template-columns:1fr}.hero-grid{gap:42px}.lesson-card{transform:none}.card-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:620px){.shell,.narrow{width:min(100% - 28px,1180px)}.hero{padding:68px 0 62px}.card-grid{grid-template-columns:1fr}.footer-wrap{flex-direction:column}}