.btn{border-radius:var(--radius-sm);transition:all var(--transition-fast);cursor:pointer;white-space:nowrap;-webkit-user-select:none;user-select:none;justify-content:center;align-items:center;gap:.5rem;font-size:.875rem;font-weight:700;text-decoration:none;display:inline-flex}.btn:active:not(:disabled){transform:translateY(1px)}.btn:disabled,.btn-disabled{opacity:.45;cursor:not-allowed}.btn-sm{height:34px;padding:0 .85rem;font-size:.8rem}.btn-md{height:40px;padding:0 1.25rem;font-size:.875rem}.btn-lg{height:46px;padding:0 1.5rem;font-size:.95rem}.btn-full{width:100%}.btn-primary{background-color:var(--color-primary);color:#fff;border:1px solid var(--color-primary)}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-hover);border-color:var(--color-primary-hover)}.btn-secondary{background-color:var(--color-text);color:#fff;border:1px solid var(--color-text)}.btn-secondary:hover:not(:disabled){background-color:#000}.btn-accent{background-color:var(--color-accent);color:#151a17;border:1px solid var(--color-accent);font-weight:800}.btn-accent:hover:not(:disabled){background-color:var(--color-accent-hover);border-color:var(--color-accent-hover)}.btn-outline{color:var(--color-text);border:1px solid var(--color-border);background-color:#fff}.btn-outline:hover:not(:disabled){background-color:var(--color-surface-subtle);border-color:var(--color-border-hover)}.btn-ghost{color:var(--color-text-muted);background-color:#0000;border:1px solid #0000}.btn-ghost:hover:not(:disabled){background-color:var(--color-surface-subtle);color:var(--color-text)}.btn-danger-outline{color:var(--color-danger);border:1px solid var(--color-danger);background-color:#0000}.btn-danger-outline:hover:not(:disabled){background-color:var(--color-danger-bg)}.btn-spinner{border:2px solid #ffffff4d;border-top-color:currentColor;border-radius:50%;width:16px;height:16px;animation:.6s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}