:root{--portal-primary:#2563eb;--portal-primary-hover:#1d4ed8;--portal-primary-light:#dbeafe;--portal-danger:#dc2626;--portal-danger-hover:#b91c1c;--portal-success:#16a34a;--portal-warning:#d97706;--portal-bg:#f8fafc;--portal-surface:#ffffff;--portal-border:#e2e8f0;--portal-text:#1e293b;--portal-text-secondary:#64748b;--portal-text-muted:#94a3b8;--space-xs:0.25rem;--space-sm:0.5rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-2xl:3rem;--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--font-mono:"SF Mono",SFMono-Regular,Menlo,Monaco,Consolas,monospace;--text-xs:0.75rem;--text-sm:0.875rem;--text-base:1rem;--text-lg:1.125rem;--text-xl:1.25rem;--text-2xl:1.5rem;--radius-sm:0.25rem;--radius-md:0.5rem;--radius-lg:0.75rem;--radius-xl:1rem;--shadow-sm:0 1px 2px rgba(0,0,0,0.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.1);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1)}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);color:var(--portal-text);background-color:var(--portal-bg);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--portal-primary);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit;cursor:pointer}img{max-width:100%;height:auto}h1,h2,h3,h4,h5,h6{line-height:1.3;font-weight:600}h1{font-size:var(--text-2xl)}h2{font-size:var(--text-xl)}h3{font-size:var(--text-lg)}