:root{--bg:#06090f;--sidebar:#0a0d16;--panel:hsla(0,0%,100%,.04);--panel2:hsla(0,0%,100%,.07);--border:hsla(0,0%,100%,.09);--text:hsla(0,0%,100%,.92);--muted:hsla(0,0%,100%,.55);--dim:hsla(0,0%,100%,.35);--brand:#2979ff;--brand2:#1251d3;--brandGlow:rgba(41,121,255,.3);--brandFaint:rgba(41,121,255,.1);--brandBorder:rgba(41,121,255,.4);--radius:16px;--shadow:0 16px 40px rgba(0,0,0,.55);--header-h:52px;--sidebar-w:224px}*{box-sizing:border-box}body,html{height:100%;margin:0}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:var(--bg)}a{color:inherit;text-decoration:none}.header{position:-webkit-sticky;position:sticky;top:0;z-index:20;height:var(--header-h);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:rgba(6,9,15,.75);border-bottom:1px solid hsla(0,0%,100%,.07)}.headerInner{height:100%;padding:0 20px;display:flex;align-items:center;justify-content:space-between}.brand{font-size:20px;font-weight:900;letter-spacing:.5px;color:var(--brand);text-shadow:0 0 18px rgba(41,121,255,.45)}.topNav{display:flex;gap:4px}.topNav a{color:var(--muted);font-size:13.5px;font-weight:500;padding:6px 12px;border-radius:8px;border:1px solid transparent;transition:color .15s,background .15s,border-color .15s}.topNav a:hover{color:var(--text);background:var(--brandFaint);border-color:var(--brandBorder)}.appShell{display:flex;min-height:calc(100vh - var(--header-h) - 44px)}.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);background:var(--sidebar);border-right:1px solid hsla(0,0%,100%,.07);padding:18px 0 32px;position:-webkit-sticky;position:sticky;top:var(--header-h);height:calc(100vh - var(--header-h));overflow-y:auto;display:flex;flex-direction:column}.sidebarLogo{display:block;padding:0 16px 16px;font-size:14px;font-weight:800;letter-spacing:.4px;color:var(--brand);border-bottom:1px solid hsla(0,0%,100%,.06);margin-bottom:8px}.sidebarSection{padding:16px 16px 6px;font-size:10.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--dim)}.sidebarLink{display:flex;align-items:center;gap:10px;padding:9px 16px;font-size:13.5px;font-weight:450;color:var(--muted);border-left:2px solid transparent;transition:color .14s,background .14s,border-color .14s}.sidebarLink:hover{color:var(--text);background:hsla(0,0%,100%,.04);border-left-color:rgba(41,121,255,.45)}.sidebarLinkActive{color:var(--brand)!important;background:var(--brandFaint)!important;border-left-color:var(--brand)!important;font-weight:600}.pageContent{flex:1 1;min-width:0;padding:28px 32px}.footer{border-top:1px solid hsla(0,0%,100%,.06);background:var(--sidebar);height:44px;display:flex;align-items:center}.footerInner{padding:0 32px;font-size:12.5px;color:var(--dim)}.hero{border:1px solid var(--border);border-radius:calc(var(--radius) + 4px);padding:28px 24px 24px;box-shadow:var(--shadow);background:linear-gradient(160deg,rgba(41,121,255,.16) 0,hsla(0,0%,100%,.02) 55%),var(--panel);position:relative;overflow:hidden}.hero:before{content:"";position:absolute;top:-60px;right:-60px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(41,121,255,.18),transparent 70%);pointer-events:none}.badge{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:999px;border:1px solid var(--brandBorder);background:var(--brandFaint);color:hsla(0,0%,100%,.85);font-weight:650;font-size:11.5px;letter-spacing:.04em;text-transform:uppercase}.h1{font-size:30px;line-height:1.1;margin:14px 0 8px}.p{color:var(--muted);font-size:14.5px;line-height:1.65;margin:0}.kicker{margin-top:12px;color:var(--dim);font-size:12.5px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));grid-gap:10px;gap:10px;margin-top:16px}.card{border:1px solid hsla(0,0%,100%,.07);background:var(--panel);border-radius:var(--radius);padding:16px;transition:transform .14s ease,border-color .14s ease,background .14s ease}.card:hover{transform:translateY(-2px);border-color:var(--brandBorder);background:var(--panel2);box-shadow:0 8px 28px rgba(41,121,255,.12)}.input{padding:11px 14px;border-radius:12px;border:1px solid hsla(0,0%,100%,.11);background:rgba(0,0,0,.3);color:var(--text);font-size:15px;outline:none;transition:border-color .15s,box-shadow .15s}.input:focus{border-color:var(--brandBorder);box-shadow:0 0 0 4px rgba(41,121,255,.16)}.btn{padding:11px 16px;border-radius:12px;border:1px solid hsla(0,0%,100%,.1);background:hsla(0,0%,100%,.06);color:var(--text);cursor:pointer;font-weight:600;font-size:14px;transition:background .14s,border-color .14s}.btn:hover{background:hsla(0,0%,100%,.1)}.btnPrimary{border-color:var(--brandBorder);background:linear-gradient(160deg,var(--brand) 0,var(--brand2) 100%);box-shadow:0 8px 22px var(--brandGlow)}.btnPrimary:hover{filter:brightness(1.06);box-shadow:0 10px 28px var(--brandGlow)}.validBadge{border-radius:999px;background:rgba(34,197,94,.12);border:1px solid rgba(34,197,94,.35);color:#4ade80}.invalidBadge,.validBadge{display:inline-flex;align-items:center;padding:7px 14px;font-size:13.5px;font-weight:600}.invalidBadge{border-radius:999px;background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.3);color:#f87171}.container{max-width:860px;padding:0}@media (max-width:680px){.sidebar{display:none}.pageContent{padding:18px 16px}.topNav a{padding:6px 8px;font-size:12px}.featureStrip{flex-wrap:wrap}.featureStrip>div{border-left:none!important;border-top:1px solid hsla(0,0%,100%,.07)}.featureStrip>div:first-child{border-top:none}}