.btn{display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;padding:0.625rem 1.25rem;font-size:0.9375rem;font-weight:600;text-decoration:none;border-radius:8px;cursor:pointer;transition:all 0.2s ease;border:1px solid transparent}.btn-sm{padding:0.5rem 1rem;font-size:0.875rem}.btn-lg{padding:0.875rem 2rem;font-size:1.0625rem}.btn-primary{background:var(--accent);color:#000;border-color:var(--accent)}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);transform:translateY(-1px);box-shadow:0 4px 12px rgba(255,204,0,0.3)}.btn-secondary{background:transparent;color:var(--text-secondary);border-color:var(--border)}.btn-secondary:hover{background:var(--bg-tertiary);border-color:var(--border-light);color:var(--text-primary)}.btn-block{display:block;width:100%}