.appShell{--shell-bg:#f5f8fc;--shell-surface:#fff;--shell-border:#dbe3ee;--shell-text:#0f172a;--shell-muted:#64748b;--shell-primary:#2563eb;--shell-primary-hover:#1d4ed8;--shell-primary-soft:#eaf2ff;--shell-accent:#0ea5a3;--shell-radius:12px;--shell-shadow:0 4px 14px rgba(15,23,42,.06);--shell-shadow-md:0 16px 42px rgba(15,23,42,.08);min-height:100vh;background:radial-gradient(circle at top right,rgba(14,165,163,.1),transparent 30rem),linear-gradient(180deg,#fbfdff 0,var(--shell-bg) 45%,#eef4fb 100%);color:var(--shell-text)}.appShell button{font-family:inherit;cursor:pointer}.appShell a.link{color:var(--shell-primary);font-weight:500;text-decoration:none}.appShell a.link:hover{text-decoration:underline}