*,:after,:before{box-sizing:border-box}:root{--color-text:#0f172a;--color-muted:#64748b;--color-surface:#fff;--color-surface-2:#f8fafc;--color-border:#e2e8f0;--color-primary:#2563eb;--color-primary-light:#eff6ff;--color-primary-hover:#1d4ed8;--color-error-bg:#fef2f2;--color-error-text:#b91c1c;--color-body-muted:#334155;--shadow-dropdown:0 8px 24px rgba(15,23,42,.1);--shadow-card:0 4px 20px rgba(37,99,235,.08);--radius:8px;--radius-lg:12px;--container:1100px;--container-narrow:720px;color-scheme:light}html[data-theme=dark]{--color-text:#f1f5f9;--color-muted:#94a3b8;--color-surface:#1e293b;--color-surface-2:#0f172a;--color-border:#334155;--color-primary:#3b82f6;--color-primary-light:#1e3a5f;--color-primary-hover:#2563eb;--color-error-bg:#450a0a;--color-error-text:#fca5a5;--color-body-muted:#cbd5e1;--shadow-dropdown:0 8px 24px rgba(0,0,0,.35);--shadow-card:0 4px 20px rgba(59,130,246,.12);color-scheme:dark}html{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--color-text);background:var(--color-surface-2);line-height:1.5;-webkit-font-smoothing:antialiased}body{margin:0}.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 1.25rem}.container--narrow{max-width:var(--container-narrow)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.65rem 1.25rem;font-size:.95rem;font-weight:600;border:none;border-radius:var(--radius);cursor:pointer;transition:background .15s,transform .1s}.btn:active{transform:scale(.98)}.btn--primary{background:var(--color-primary);color:#fff}.btn--primary:hover{background:var(--color-primary-hover)}