/* Optimization & Accessibility Additions */

.btn-disabled {
    opacity: 0.7;
    cursor: not-allowed;
    background: #555 !important;
    pointer-events: none;
}

.paypal-btn.btn-disabled {
    background: #555 !important;
    color: #aaa !important;
    box-shadow: none !important;
    transform: none !important;
}

/* Focus states for accessibility */
button:focus-visible,
a:focus-visible,
input:focus-visible {
    outline: 2px solid var(--secondary);
    outline-offset: 2px;
}

/* Screen reader only class */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}