.header{background-color:var(--background-color);border-bottom:1px solid var(--border-color);padding:1rem 0}.header-container{display:flex;align-items:center;justify-content:space-between}.header-logo{font-size:1.25rem;font-weight:700;color:var(--primary-color)}.header-nav{display:flex;gap:1.5rem}.header-nav-link{font-size:.875rem;font-weight:500;color:var(--gray-700);transition:color .2s ease}.header-nav-link:hover{color:var(--primary-color)}.button{display:inline-flex;align-items:center;justify-content:center;border-radius:.375rem;font-weight:500;cursor:pointer;transition:all .2s ease;border:none}.button:disabled{opacity:.5;cursor:not-allowed}.button-primary{background-color:var(--primary-color);color:white}.button-primary:hover:not(:disabled){background-color:var(--primary-hover)}.button-secondary{background-color:var(--secondary-color);color:white}.button-secondary:hover:not(:disabled){background-color:var(--secondary-hover)}.button-outline{background-color:transparent;border:1px solid var(--border-color);color:var(--text-color)}.button-outline:hover:not(:disabled){background-color:var(--gray-100)}.button-ghost{background-color:transparent;color:var(--text-color)}.button-ghost:hover:not(:disabled){background-color:var(--gray-100)}.button-danger{background-color:var(--error-color);color:white}.button-danger:hover:not(:disabled){background-color:#dc2626}.button-sm{height:2rem;padding:0 .75rem;font-size:.875rem}.button-md{height:2.5rem;padding:0 1rem;font-size:1rem}.button-lg{height:3rem;padding:0 1.5rem;font-size:1.125rem}.button-full-width{width:100%}