/* ==========================================================================
   WCAG 2.1 AA Accessibility Styles
   Our Telekom DNS Platform
   ========================================================================== */

/* Skip to content link */
.skip-to-content {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    padding: 12px 24px;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: 0 0 8px 8px;
    text-decoration: none;
    transition: top 0.2s ease;
}

.skip-to-content:focus {
    top: 0;
    outline: 2px solid #fff;
    outline-offset: 2px;
}

/* Focus-visible styles on all interactive elements
   Uses outline (not border) to prevent layout shifts
   2px solid #3b82f6 with 2px offset */
.nav-link:focus-visible,
.menu-item:focus-visible,
.pagination-btn:focus-visible,
.tab:focus-visible,
.pill:focus-visible,
.type-pill:focus-visible,
.ttl-preset:focus-visible,
.quick-action-btn:focus-visible,
.card-interactive:focus-visible,
.toast-dismiss:focus-visible,
.form-input:focus-visible,
.form-select:focus-visible,
.search-box-input:focus-visible {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}

/* Table row focus for keyboard navigation */
.data-table tbody tr:focus-within {
    outline: 2px solid #3b82f6;
    outline-offset: -2px;
}

.data-table tbody tr:focus-within .row-actions {
    opacity: 1;
}

/* High contrast mode support via forced-colors */
@media (forced-colors: active) {
    .btn,
    .btn-primary,
    .btn-danger,
    .btn-ghost,
    .btn-success {
        border: 2px solid ButtonText;
    }

    .nav-link.active {
        border-left-color: Highlight;
        color: Highlight;
    }

    .badge,
    .record-badge,
    .zone-type-badge,
    .scope-badge {
        border: 1px solid ButtonText;
    }

    .form-input,
    .form-select,
    .search-box-input {
        border: 1px solid ButtonText;
    }

    .form-input:focus,
    .form-select:focus,
    .search-box-input:focus {
        outline: 2px solid Highlight;
    }

    .modal {
        border: 2px solid ButtonText;
    }

    .toast {
        border: 2px solid ButtonText;
    }

    .card,
    .stat-card,
    .section-card,
    .policy-card {
        border: 1px solid ButtonText;
    }

    .data-table thead th {
        border-bottom: 2px solid ButtonText;
    }

    .data-table tbody tr {
        border-bottom: 1px solid ButtonText;
    }

    :focus-visible {
        outline: 2px solid Highlight;
        outline-offset: 2px;
    }

    .skip-to-content:focus {
        outline: 2px solid Highlight;
    }
}

/* Reduced motion support - disable all animations/transitions */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .login-bg-grid,
    .login-bg-dots,
    .login-logo-glow {
        animation: none !important;
    }

    .view-enter {
        animation: none !important;
    }

    .toast {
        animation: none !important;
    }

    .toast.exiting {
        animation: none !important;
        display: none;
    }

    .stat-card:hover,
    .card-interactive:hover,
    .btn-primary:hover,
    .btn-danger:hover,
    .btn-success:hover {
        transform: none !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* Minimum 44x44px touch targets on mobile */
@media (max-width: 1024px) {
    .btn,
    .btn-icon,
    .nav-link,
    .menu-item,
    .tab,
    .pagination-btn,
    .pill,
    .type-pill,
    .ttl-preset,
    .quick-action-btn,
    .sidebar-collapse-btn,
    .sidebar-toggle,
    .user-menu-trigger,
    .modal-close,
    .toast-dismiss {
        min-height: 44px;
        min-width: 44px;
    }

    .btn-icon {
        width: 44px;
        height: 44px;
    }

    .nav-link {
        padding: 12px;
    }

    .menu-item {
        padding: 12px;
    }

    .pagination-btn {
        min-width: 44px;
        height: 44px;
    }
}

/* Active nav link indicator for screen readers */
.nav-link[aria-current="page"] {
    color: var(--accent);
    background: rgba(59, 130, 246, 0.10);
    border-left-color: var(--accent);
}