/* ============================================
   Loading Spinner
   ============================================ */

.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--ias-overlay-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(2px);
}

.loading-spinner-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    background: var(--ias-bg-surface);
    border-radius: var(--ias-radius-lg);
    box-shadow: var(--ias-shadow-lg);
}

.loading-message {
    color: var(--ias-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* ============================================
   PDF Viewer
   ============================================ */

.pdf-viewer {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--ias-border);
    border-radius: var(--ias-radius-lg);
    overflow: hidden;
    background: var(--ias-bg-surface);
}

.pdf-viewer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--ias-bg-muted);
    border-bottom: 1px solid var(--ias-border);
    flex-wrap: wrap;
    gap: 0.5rem;
}

.pdf-viewer-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--ias-text-primary);
}

.pdf-viewer-title i {
    font-size: 1.25rem;
    color: var(--ias-danger);
}

.pdf-viewer-controls {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.25rem;
}

.pdf-viewer-content {
    position: relative;
    overflow: auto;
    background: #525659;
}

.pdf-canvas-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    min-height: 100%;
}

.pdf-page-wrapper {
    background: var(--ias-bg-white);
    margin-bottom: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.pdf-page-canvas {
    display: block;
}

.pdf-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: var(--ias-bg-muted);
    color: var(--ias-text-secondary);
}

.pdf-placeholder-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.pdf-placeholder-icon i {
    color: var(--ias-danger);
}

.pdf-placeholder-text {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.pdf-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: var(--ias-bg-muted);
    color: var(--ias-text-secondary);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10;
}

.pdf-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: var(--ias-bg-muted);
    color: var(--ias-text-secondary);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10;
}

.pdf-error-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--ias-danger);
}

.pdf-error-text {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--ias-danger);
    text-align: center;
    padding: 0 1rem;
}

.pdf-viewer-footer {
    padding: 0.5rem 1rem;
    background: var(--ias-bg-muted);
    border-top: 1px solid var(--ias-border);
    text-align: center;
}

/* Dark scrollbar for PDF content area */
.pdf-viewer-content::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

.pdf-viewer-content::-webkit-scrollbar-track {
    background: #3a3a3a;
}

.pdf-viewer-content::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

.pdf-viewer-content::-webkit-scrollbar-thumb:hover {
    background: #aaa;
}

/* ============================================
   Alert Enhancements
   ============================================ */

.alert {
    border-radius: var(--ias-radius-lg);
    border: none;
    padding: 1rem 1.25rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.alert-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.alert-content {
    flex: 1;
}

.alert-content strong {
    display: block;
    margin-bottom: 0.25rem;
}

.alert-info {
    background: var(--ias-info-light);
    color: var(--ias-info-dark);
}

.alert-success {
    background: var(--ias-success-light);
    color: var(--ias-success-dark);
}

.alert-warning {
    background: var(--ias-warning-light);
    color: var(--ias-warning-dark);
}

.alert-danger {
    background: var(--ias-danger-light);
    color: var(--ias-danger-dark);
}

/* ============================================
   Empty State
   ============================================ */

.empty-state {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--ias-bg-surface);
    border: 1px solid var(--ias-border);
    border-radius: var(--ias-radius-lg);
}

.empty-state .empty-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    background: var(--ias-bg-muted);
    display: flex;
    align-items: center;
    justify-content: center;
}

.empty-state .empty-icon i {
    font-size: 2.5rem;
    color: var(--ias-text-muted);
}

.empty-state .empty-icon.success i {
    color: var(--ias-success);
}

.empty-state h4 {
    font-weight: 600;
    color: var(--ias-text-primary);
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: var(--ias-text-muted);
    max-width: 300px;
    margin: 0 auto;
}

/* ============================================
   Assignment Visibility Markers
   ============================================ */

.assignment-marker-group > td:first-child,
.assignment-marker-backup > td:first-child {
    box-shadow: inset 4px 0 0 0 transparent;
}

.assignment-marker-group > td:first-child {
    box-shadow: inset 4px 0 0 0 #0d6efd;
}

.assignment-marker-backup > td:first-child {
    box-shadow: inset 4px 0 0 0 #6ec5ff;
}

/* ============================================
   Info Display Components
   ============================================ */

.info-group {
    margin-bottom: 1rem;
}

.info-group:last-child {
    margin-bottom: 0;
}

.info-label {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ias-text-muted);
    margin-bottom: 0.25rem;
}

.info-value {
    font-weight: 500;
    color: var(--ias-text-primary);
}

.info-value.large {
    font-size: 1.25rem;
    font-weight: 700;
}

/* Info Row Layout */
.info-row {
    display: flex;
    justify-content: space-between;
    padding: 0.625rem 0;
    border-bottom: 1px solid var(--ias-border-light);
}

.info-row:last-child {
    border-bottom: none;
}

.info-row .label {
    color: var(--ias-text-muted);
    font-size: 0.875rem;
}

.info-row .value {
    font-weight: 500;
    color: var(--ias-text-primary);
}

/* ============================================
   Amount Display Components
   ============================================ */

.amount-grid {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.amount-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--ias-border-light);
}

.amount-item:last-child {
    border-bottom: none;
}

.amount-item.total {
    background: var(--ias-success-light);
    margin: 0.5rem -1rem -1rem;
    padding: 0.75rem 1rem;
    border-radius: 0 0 var(--ias-radius-lg) var(--ias-radius-lg);
}

.amount-item .amount-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--ias-text-muted);
    font-weight: 600;
}

.amount-item.total .amount-label {
    color: var(--ias-success-dark);
}

.amount-item .amount-value {
    font-weight: 600;
    color: var(--ias-text-primary);
}

.amount-item.total .amount-value {
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--ias-success-dark);
}

/* ============================================
   Workflow Status Components
   ============================================ */

.workflow-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.current-approver {
    padding: 0.75rem;
    background: var(--ias-bg-light);
    border-radius: var(--ias-radius);
}

.current-approver .approver-name {
    font-weight: 600;
    color: var(--ias-text-primary);
    margin-bottom: 0.25rem;
}

.current-approver .approver-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
}

.current-approver .backup-info {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px dashed var(--ias-border);
    font-size: 0.75rem;
    color: var(--ias-text-muted);
}

.current-approver .backup-info i {
    color: var(--ias-primary);
}

/* Forwarded-by / current-approver workflow display */
.forwarded-by-section {
    text-align: center;
    margin-bottom: 0.25rem;
}

.forwarded-by-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--ias-text-primary);
}

.forwarded-by-arrow {
    font-size: 1.5rem;
    color: var(--ias-primary);
    line-height: 1;
    margin: 0.25rem 0;
    opacity: 0.7;
}

.current-approver-compact {
    padding: 0.5rem 0.75rem;
    background: var(--ias-bg-light);
    border-radius: var(--ias-radius);
    font-size: 0.8rem;
    color: var(--ias-text-muted);
}

.current-approver-compact .current-approver-name {
    font-weight: 500;
    color: var(--ias-text-secondary);
}

.current-approver-compact .backup-info {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    margin-top: 0.375rem;
    padding-top: 0.375rem;
    border-top: 1px dashed var(--ias-border);
    font-size: 0.7rem;
    color: var(--ias-text-muted);
}

.current-approver-compact .backup-info i {
    color: var(--ias-primary);
}

/* ============================================
   History List
   ============================================ */

.history-list {
    max-height: 300px;
    overflow-y: auto;
}

.history-item {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--ias-border-light);
}

.history-item:last-child {
    border-bottom: none;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.25rem;
}

/* ============================================
   Invoice Filters
   ============================================ */

.invoice-filter-actions {
    display: flex;
    justify-content: flex-end;
}

.invoice-filter-chip-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.invoice-filter-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border-radius: 999px;
}

.invoice-filter-chip i {
    font-size: 0.75rem;
}

.advanced-filter-panel {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--ias-border-light);
}

@media (max-width: 991.98px) {
    .invoice-filter-actions {
        justify-content: flex-start;
    }
}

.history-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.history-user {
    font-weight: 500;
    font-size: 0.8125rem;
    color: var(--ias-text-primary);
}

.history-date {
    font-size: 0.6875rem;
    color: var(--ias-text-muted);
}

.history-duration {
    font-size: 0.6875rem;
    color: var(--ias-text-muted);
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-top: 0.25rem;
}

.history-reason {
    font-size: 0.75rem;
    color: var(--ias-danger);
    margin-top: 0.375rem;
}

.history-comment {
    font-size: 0.75rem;
    color: var(--ias-text-muted);
    margin-top: 0.25rem;
    font-style: italic;
}

.history-next {
    font-size: 0.75rem;
    color: var(--ias-info);
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-top: 0.25rem;
}

/* Additional Info Items in Approval History */
.additional-infos {
    border-top: 1px solid var(--ias-border);
    padding-top: 0.5rem;
}

.additional-info-item {
    background: var(--ias-bg-light, #f8f9fa);
    border: 1px solid var(--ias-border);
    border-radius: 0.375rem;
    padding: 0.5rem 0.75rem;
    margin-bottom: 0.5rem;
}

.additional-info-item:last-child {
    margin-bottom: 0;
}

.additional-info-header {
    margin-bottom: 0.25rem;
}

.additional-info-content {
    color: var(--ias-text);
}

.additional-info-content p {
    margin: 0 0 0.25rem 0;
}

.additional-info-content p:last-child {
    margin-bottom: 0;
}

/* Rich text editor container */
.rte-container {
    border: 1px solid var(--ias-border, #dee2e6);
    border-radius: 0.375rem;
    padding: 0.5rem;
}

/* ============================================
   Approver Autocomplete
   ============================================ */

.approver-autocomplete {
    position: relative;
    width: 100%;
}

.approver-autocomplete.disabled {
    opacity: 0.6;
    pointer-events: none;
}

.autocomplete-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.autocomplete-input-wrapper input {
    padding-right: 4rem;
}

.autocomplete-clear {
    position: absolute;
    right: 2rem;
    background: none;
    border: none;
    color: var(--ias-text-muted);
    cursor: pointer;
    padding: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.15s ease;
}

.autocomplete-clear:hover {
    color: var(--ias-danger);
}

.autocomplete-icon {
    position: absolute;
    right: 0.75rem;
    color: var(--ias-text-muted);
    pointer-events: none;
    display: flex;
    align-items: center;
}

.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 1050;
    background: var(--ias-bg-surface);
    border: 1px solid var(--ias-border);
    border-top: none;
    border-radius: 0 0 var(--ias-radius-md) var(--ias-radius-md);
    box-shadow: var(--ias-shadow-md);
    max-height: 280px;
    overflow-y: auto;
}

.autocomplete-item {
    padding: 0.625rem 0.875rem;
    cursor: pointer;
    border-bottom: 1px solid var(--ias-border-light);
    transition: background-color 0.15s ease;
}

.autocomplete-item:last-child {
    border-bottom: none;
}

.autocomplete-item:hover,
.autocomplete-item.highlighted {
    background-color: var(--ias-bg-muted);
}

.autocomplete-item.selected {
    background-color: var(--ias-primary-light);
}

.autocomplete-item .approver-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.125rem;
}

.autocomplete-item .approver-name {
    font-weight: 500;
    color: var(--ias-text-primary);
}

.autocomplete-item .approver-type {
    font-size: 0.7rem;
    padding: 0.125rem 0.375rem;
}

.autocomplete-item .approver-email {
    font-size: 0.8rem;
}

.autocomplete-no-results {
    padding: 1rem;
    text-align: center;
    color: var(--ias-text-muted);
    font-size: 0.875rem;
}

/* ============================================
   Component Responsive Styles
   ============================================ */

@media (max-width: 575.98px) {
    .empty-state {
        padding: 2rem 1.5rem;
    }

    .empty-state .empty-icon {
        font-size: 3rem;
    }

    .autocomplete-dropdown {
        max-height: 200px;
    }
}

/* ============================================
   Toast Notifications
   ============================================ */

.notification-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 1100;
    display: flex;
    flex-direction: column-reverse;
    gap: 0.75rem;
    max-width: 400px;
    pointer-events: none;
}

.notification-toast {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    border-radius: var(--ias-radius, 0.5rem);
    background: var(--ias-bg-surface);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    pointer-events: auto;
    animation: notification-slide-in 0.3s ease-out;
    border-left: 4px solid;
}

@keyframes notification-slide-in {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.notification-success {
    border-left-color: var(--ias-success, #198754);
}

.notification-success .notification-icon {
    color: var(--ias-success, #198754);
}

.notification-error {
    border-left-color: var(--ias-danger, #dc3545);
}

.notification-error .notification-icon {
    color: var(--ias-danger, #dc3545);
}

.notification-warning {
    border-left-color: var(--ias-warning, #ffc107);
}

.notification-warning .notification-icon {
    color: var(--ias-warning, #ffc107);
}

.notification-info {
    border-left-color: var(--ias-info, #0dcaf0);
}

.notification-info .notification-icon {
    color: var(--ias-info, #0dcaf0);
}

.notification-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.notification-content {
    flex: 1;
    min-width: 0;
}

.notification-title {
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
    color: var(--ias-text-primary);
}

.notification-message {
    font-size: 0.85rem;
    color: var(--ias-text-secondary);
    word-wrap: break-word;
}

.notification-close {
    background: none;
    border: none;
    padding: 0.25rem;
    cursor: pointer;
    color: var(--ias-text-muted);
    transition: color 0.2s;
    flex-shrink: 0;
}

.notification-close:hover {
    color: var(--ias-text-primary);
}

@media (max-width: 480px) {
    .notification-container {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
        max-width: none;
    }
}

/* ============================================
   Invoice Document Modal
   ============================================ */

.invoice-document-modal {
    height: 90vh;
    max-height: 90vh;
}

.invoice-document-modal .modal-header {
    border-bottom: 1px solid var(--ias-border);
    padding: 1rem 1.5rem;
}

.invoice-document-modal .modal-title-container {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.invoice-document-modal .modal-subtitle {
    font-size: 0.85rem;
    color: var(--ias-text-muted);
}

.invoice-document-modal .modal-body {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.invoice-document-modal .modal-pdf-viewer {
    flex: 1;
    height: 100%;
}

.invoice-document-modal .modal-pdf-viewer .pdf-viewer-content {
    height: calc(80vh - 180px) !important;
}

.invoice-document-modal .modal-footer {
    border-top: 1px solid var(--ias-border);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.invoice-document-modal .modal-footer-left,
.invoice-document-modal .modal-footer-right {
    display: flex;
    gap: 0.5rem;
}

.invoice-document-modal .pdf-loading-container,
.invoice-document-modal .no-document-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 300px;
    color: var(--ias-text-muted);
}

.invoice-document-modal .no-document-icon {
    font-size: 4rem;
    opacity: 0.5;
    margin-bottom: 1rem;
}

@media (max-width: 576px) {
    .invoice-document-modal .modal-footer {
        flex-direction: column;
    }

    .invoice-document-modal .modal-footer-left,
    .invoice-document-modal .modal-footer-right {
        width: 100%;
        justify-content: center;
    }

    .invoice-document-modal .modal-footer-right {
        order: -1;
    }
}