.app-shell{color:#17263a;background:#f5f8fc;min-height:100vh}.app-shell-header{background:#fff;border-bottom:1px solid #d9e2ed}.app-shell-container{width:min(100% - 32px,1080px);margin:0 auto}.app-shell-header-inner{justify-content:space-between;align-items:center;gap:24px;min-height:64px;display:flex}.app-shell-brand{color:#1468d4;font-size:20px;font-weight:760;text-decoration:none}.app-shell-nav{align-items:center;gap:18px;display:flex}.app-shell-nav a{color:#40546b;text-decoration:none}.app-shell-nav a:hover,.app-shell-nav a:focus-visible{color:#1468d4;text-decoration:underline}.app-shell-main{padding:56px 0}.app-shell-main h1{margin:0 0 24px;font-size:clamp(28px,4vw,42px)}.app-shell-card{background:#fff;border:1px solid #d9e2ed;border-radius:12px;max-width:640px;padding:28px;box-shadow:0 10px 30px #17263a0f}.app-shell-card h2{margin-top:0}.app-shell-card p{color:#40546b;line-height:1.7}.app-shell-button{color:#fff;background:#1468d4;border-radius:6px;margin-top:8px;padding:11px 18px;text-decoration:none;display:inline-flex}.app-shell-button:focus-visible,.app-shell-brand:focus-visible,.app-shell-nav a:focus-visible{outline-offset:3px;outline:3px solid #1468d440}@media (max-width:600px){.app-shell-container{width:min(100% - 24px,1080px)}.app-shell-header-inner{flex-direction:column;justify-content:center;align-items:flex-start;gap:8px;padding:12px 0}.app-shell-nav{flex-wrap:wrap;gap:12px}.app-shell-main{padding:36px 0}.app-shell-card{padding:22px}}