:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#f5f7fb;background:#0b1020;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:radial-gradient(circle at top right,rgba(77,105,255,.18),transparent 32rem),#0b1020}button,input,select,textarea{font:inherit}.app-shell{min-height:100vh}.sidebar{display:flex;align-items:center;gap:.9rem;padding:1.15rem 1.4rem;border-bottom:1px solid rgba(255,255,255,.08);background:#070b18db;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.brand-mark{display:grid;place-items:center;width:2.7rem;height:2.7rem;border-radius:.9rem;background:linear-gradient(145deg,#7c8cff,#5967e8);font-size:1.2rem;font-weight:800}.brand-name{font-size:1.05rem;font-weight:750}.environment{margin-top:.15rem;color:#98a3bb;font-size:.75rem}.main-content{width:min(1180px,calc(100% - 2rem));margin:0 auto;padding:2rem 0 4rem}.topbar{display:flex;justify-content:space-between;gap:1rem;align-items:flex-start;margin-bottom:2rem}h1,h2,h3,p{margin-top:0}h1{margin-bottom:0;font-size:clamp(2rem,5vw,3.4rem);letter-spacing:-.045em}h2{max-width:780px;margin-bottom:1rem;font-size:clamp(2rem,5vw,4.5rem);line-height:.98;letter-spacing:-.055em}h3{margin-bottom:.6rem}.eyebrow{margin-bottom:.55rem;color:#aeb8d2;font-size:.78rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase}.environment-badge{padding:.55rem .8rem;border:1px solid rgba(255,255,255,.13);border-radius:999px;color:#c8d0e4;background:#ffffff0b;font-size:.78rem;font-weight:650}.welcome-card{min-height:330px;display:flex;align-items:end;padding:clamp(1.5rem,4vw,3rem);border:1px solid rgba(255,255,255,.1);border-radius:2rem;background:linear-gradient(145deg,#6776ff2b,#ffffff06),#ffffff09;box-shadow:0 28px 80px #00000047}.intro{max-width:760px;margin-bottom:0;color:#b9c2d8;font-size:1.02rem;line-height:1.7}.foundation-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin-top:1rem}.foundation-grid article{min-height:190px;padding:1.45rem;border:1px solid rgba(255,255,255,.085);border-radius:1.4rem;background:#ffffff08}.foundation-grid span{display:inline-block;margin-bottom:2.2rem;color:#8e9cff;font-size:.78rem;font-weight:800;letter-spacing:.1em}.foundation-grid p{margin-bottom:0;color:#9da8c0;line-height:1.6}@media(min-width:900px){.app-shell{display:grid;grid-template-columns:235px 1fr}.sidebar{align-items:flex-start;border-right:1px solid rgba(255,255,255,.08);border-bottom:0;min-height:100vh;position:sticky;top:0}.main-content{padding-top:3rem}}@media(max-width:700px){.foundation-grid{grid-template-columns:1fr}.topbar{align-items:center}}