:root{--b-600:#2563eb;--b-500:#3a86ff;--b-400:#60a5fa;--a-600:#059669;--a-500:#0d9488;--a-500-light:#06d6a0;--a-400:#34d399;--n-950:#0b1220;--n-900:#0f2a32;--n-700:#334155;--n-500:#64748b;--n-300:#cbd5e1;--n-100:#f1f5f9;--bg:#fff;--success:#10b981;--warning:#f59e0b;--error:#ef4444;--info:#3b82f6;--text-hi:#0b1220;--text-mid:#334155;--text-low:#64748b;--radius-card:16px;--radius-ui:12px;--font-sans:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";--font-mono:"Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;--ease-smooth:cubic-bezier(.22,1,.36,1);--shadow-s1:0 1px 2px #0f2a320f,0 1px 1px #0f2a3208;--shadow-s2:0 6px 16px #0f2a3214;--surface-card:var(--bg);--surface-alt:var(--n-100);--surface-hover:#f8fafc;--border-subtle:#e2e8f0;--border-strong:#cbd5e1}@media (prefers-color-scheme:dark){:root{--bg:#0b1220;--n-100:#111827;--n-300:#233041;--text-hi:#fff;--text-mid:#e2e8f0;--text-low:#94a3b8;--shadow-s1:0 1px 1px #00000040;--shadow-s2:0 8px 24px #00000059;--surface-card:#111827;--surface-alt:#233041;--surface-hover:#1e293b;--border-subtle:#334155;--border-strong:#475569}}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg);color:var(--text-hi);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5}.btn-primary{background-color:var(--b-600);color:#fff;border-radius:var(--radius-ui);transition:background-color .18s var(--ease-smooth);cursor:pointer;border:none;padding:12px 24px;font-size:14px;font-weight:500;line-height:20px;text-decoration:none;display:inline-block}.btn-primary:hover{background-color:var(--b-500)}.btn-secondary{color:var(--b-600);border-radius:var(--radius-ui);border:1px solid var(--border-strong);transition:all .18s var(--ease-smooth);cursor:pointer;background-color:#0000;padding:12px 24px;font-size:14px;font-weight:500;line-height:20px;text-decoration:none;display:inline-block}.btn-secondary:hover{background-color:var(--surface-hover)}