.btn{justify-content:center;align-items:center;gap:var(--space-2);border-radius:var(--radius-lg);padding:0 var(--space-5);font-family:var(--font-ui);font-size:var(--ui-md);line-height:var(--ui-md-lh);font-weight:var(--w-semibold);cursor:pointer;transition:background var(--motion-fast) var(--ease-ui), border-color var(--motion-fast) var(--ease-ui), color var(--motion-fast) var(--ease-ui), transform var(--motion-fast) var(--ease-ui);border:1px solid #0000;display:inline-flex}.btn:active:not(:disabled){transform:scale(.97)}.btn:disabled{cursor:default}.btn:focus-visible{box-shadow:var(--focus-ring);outline:none}.btn--sm{height:var(--control-sm);font-size:var(--ui-sm)}.btn--md{height:var(--control-md)}.btn--lg{height:var(--control-lg)}.btn--primary{background:var(--accent);color:var(--text-on-accent)}@media (hover:hover){.btn--primary:hover:not(:disabled){background:var(--accent-hover)}}.btn--primary:active:not(:disabled){background:var(--accent-active)}.btn--primary:disabled{background:var(--bg-elevated);border-color:var(--border-subtle);color:var(--text-muted)}.btn--secondary{background:var(--bg-elevated);border-color:var(--border-strong);color:var(--text-primary)}@media (hover:hover){.btn--secondary:hover:not(:disabled){background:var(--bg-hover);border-color:var(--border-emphasis)}}.btn--secondary:active:not(:disabled){background:var(--bg-pressed)}.btn--secondary:disabled{background:var(--bg-card);color:var(--text-muted)}.btn--ghost{color:var(--text-secondary);background:0 0}@media (hover:hover){.btn--ghost:hover:not(:disabled){background:var(--bg-card);color:var(--text-primary)}}.btn--ghost:active:not(:disabled){background:var(--bg-elevated)}.btn--ghost:disabled{opacity:.6}.btn--ghost-destructive{color:var(--text-secondary);background:0 0}@media (hover:hover){.btn--ghost-destructive:hover:not(:disabled){background:var(--negative-tint);color:var(--negative)}}.btn--ghost-destructive:active:not(:disabled){background:var(--negative-tint-strong);color:var(--negative)}.btn--ghost-destructive:disabled{opacity:.6}.btn--ghost-destructive:focus-visible{box-shadow:var(--ring-destructive)}.btn--destructive{border-color:var(--negative-border);color:var(--negative);background:0 0}@media (hover:hover){.btn--destructive:hover:not(:disabled){background:var(--negative-tint)}}.btn--destructive:active:not(:disabled){background:var(--negative-tint-strong);border-color:var(--negative-border-strong)}.btn--destructive:disabled{border-color:var(--border-subtle);color:var(--text-muted)}.btn--destructive:focus-visible{box-shadow:var(--ring-destructive)}.btn--link{color:var(--accent);height:auto;font-size:inherit;background:0 0;border:none;padding:0}@media (hover:hover){.btn--link:hover:not(:disabled){text-decoration:underline}}