/**
 * Tab Loading Styles - Committee Profile
 * Ensures tabs are properly disabled during loading states
 */

/* Disabled tab styles - high specificity to override Bootstrap */
.nav-tabs .nav-link.disabled,
.nav-tabs .nav-link[aria-disabled="true"],
.nav-tabs .nav-link[disabled] {
    opacity: 0.6 !important;
    pointer-events: none !important;
    cursor: not-allowed !important;
    color: #6c757d !important;
    background-color: transparent !important;
    border-color: transparent !important;
    user-select: none !important;
    -webkit-user-select: none !important;
    -moz-user-select: none !important;
    -ms-user-select: none !important;
}

/* Disabled tab hover/focus/active states */
.nav-tabs .nav-link.disabled:hover,
.nav-tabs .nav-link.disabled:focus,
.nav-tabs .nav-link.disabled:active,
.nav-tabs .nav-link[aria-disabled="true"]:hover,
.nav-tabs .nav-link[aria-disabled="true"]:focus,
.nav-tabs .nav-link[aria-disabled="true"]:active,
.nav-tabs .nav-link[disabled]:hover,
.nav-tabs .nav-link[disabled]:focus,
.nav-tabs .nav-link[disabled]:active {
    opacity: 0.6 !important;
    pointer-events: none !important;
    cursor: not-allowed !important;
    color: #6c757d !important;
    background-color: transparent !important;
    border-color: transparent !important;
    box-shadow: none !important;
    outline: none !important;
}

/* Loading spinner in tabs */
.nav-tabs .nav-link .spinner-border-sm {
    width: 0.75rem;
    height: 0.75rem;
    border-width: 0.1em;
}

/* Tab content loading states */
.tab-pane .spinner-border {
    color: #E09A10; /* ACEC brand color */
}

/* Loading overlay for tab content */
.tab-loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

/* Ensure disabled tabs cannot be focused via keyboard */
.nav-tabs .nav-link.disabled,
.nav-tabs .nav-link[aria-disabled="true"],
.nav-tabs .nav-link[disabled] {
    tabindex: -1 !important;
}

/* Additional protection against click events */
.nav-tabs .nav-link.disabled *,
.nav-tabs .nav-link[aria-disabled="true"] *,
.nav-tabs .nav-link[disabled] * {
    pointer-events: none !important;
}

/* Loading state for entire tab container */
.tabs-loading {
    position: relative;
}

.tabs-loading::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.5);
    z-index: 999;
    pointer-events: none;
}

/* Accessibility improvements */
.nav-tabs .nav-link.disabled[aria-disabled="true"]::after {
    content: ' (Loading...)';
    font-size: 0.75rem;
    font-weight: normal;
    opacity: 0.7;
}

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

/* Animation for loading spinners */
@keyframes tab-loading-pulse {
    0% { opacity: 0.6; }
    50% { opacity: 0.3; }
    100% { opacity: 0.6; }
}

.nav-tabs .nav-link.disabled.loading {
    animation: tab-loading-pulse 1.5s ease-in-out infinite;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .nav-tabs .nav-link.disabled,
    .nav-tabs .nav-link[aria-disabled="true"],
    .nav-tabs .nav-link[disabled] {
        opacity: 0.5 !important;
        color: #495057 !important;
        border: 2px dashed #6c757d !important;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .nav-tabs .nav-link.disabled.loading {
        animation: none;
    }
    
    .nav-tabs .nav-link .spinner-border {
        animation: none;
    }
}

/* Print styles - hide loading indicators */
@media print {
    .nav-tabs .nav-link .spinner-border,
    .nav-tabs .nav-link .spinner-border-sm,
    .tab-loading-overlay {
        display: none !important;
    }
    
    .nav-tabs .nav-link.disabled {
        opacity: 1 !important;
        color: #000 !important;
    }
}