.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);font-family:inherit;font-weight:500;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all .15s;outline:none;white-space:nowrap;-webkit-tap-highlight-color:transparent}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:var(--color-text-inverse)}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-primary:active:not(:disabled){background:var(--color-primary-active)}.btn-secondary{background:var(--color-gray-100);color:var(--color-text)}.btn-secondary:hover:not(:disabled){background:var(--color-gray-200)}.btn-outline{background:transparent;border:1px solid var(--color-border);color:var(--color-text-secondary)}.btn-outline:hover:not(:disabled){background:var(--color-gray-50);border-color:var(--color-gray-400);color:var(--color-text)}.btn-text{background:transparent;color:var(--color-primary)}.btn-text:hover:not(:disabled){background:var(--color-primary-light)}.btn-sm{height:36px;padding:0 var(--space-3);font-size:var(--text-sm)}.btn-md{height:44px;padding:0 var(--space-4);font-size:var(--text-base)}.btn-lg{height:52px;padding:0 var(--space-6);font-size:var(--text-lg)}.btn-full{width:100%}.dialog-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;padding:var(--space-4);z-index:2000;animation:dialogFadeIn .15s ease}@keyframes dialogFadeIn{0%{opacity:0}to{opacity:1}}.dialog{background:var(--color-bg-card);border-radius:var(--radius-lg);padding:var(--space-6);width:100%;max-width:320px;box-shadow:var(--shadow-md);animation:dialogSlideUp .2s ease}@keyframes dialogSlideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.dialog-title{font-size:var(--text-lg);font-weight:600;color:var(--color-text);margin-bottom:var(--space-3)}.dialog-message{font-size:var(--text-base);color:var(--color-text-secondary);line-height:1.5;margin-bottom:var(--space-6);white-space:pre-wrap}.dialog-actions{display:flex;gap:var(--space-3);justify-content:flex-end}.dialog-actions .btn{min-width:80px}