/* ========================================
   Bay Brothers OS - Invoice Mobile & Dark Mode Optimizations
   iOS-optimized layout for invoice pages
   ======================================== */

/* ============ INVOICE PAGE BASE STYLES ============ */

/* Invoice page container */
.invoice-page {
    background-color: var(--bb-bg-primary);
    min-height: 100vh;
    padding-bottom: max(20px, env(safe-area-inset-bottom));
}

/* Invoice stats cards - iOS style */
.invoice-stats-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-bottom: 1rem;
}

@media (min-width: 992px) {
    .invoice-stats-row {
        grid-template-columns: repeat(4, 1fr);
    }
}

.invoice-stat-card {
    border-radius: 14px;
    padding: 1rem;
    position: relative;
    overflow: hidden;
    min-height: 90px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.2s cubic-bezier(0.32, 0.72, 0, 1);
    -webkit-tap-highlight-color: transparent;
}

.invoice-stat-card:active {
    transform: scale(0.98);
}

.invoice-stat-card .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.invoice-stat-card .stat-label {
    font-size: 0.8125rem;
    font-weight: 500;
    opacity: 0.85;
    margin-bottom: 0.25rem;
}

.invoice-stat-card .stat-icon {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2rem;
    opacity: 0.2;
}

/* Dark mode stat cards */
[data-bs-theme="dark"] .invoice-stat-card {
    border: 1px solid var(--bb-border-color);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-bs-theme="light"]) .invoice-stat-card {
        border: 1px solid var(--bb-border-color);
    }
}

/* ============ INVOICE LIST - MOBILE CARD LAYOUT ============ */

@media (max-width: 991px) {
    /* Hide table on mobile, show cards */
    .invoice-list-table {
        display: none !important;
    }
    
    .invoice-list-cards {
        display: block !important;
    }
    
    /* Invoice card item */
    .invoice-card-item {
        background-color: var(--bb-card-bg);
        border: 1px solid var(--bb-border-light);
        border-radius: 14px;
        padding: 1rem;
        margin-bottom: 0.75rem;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
        transition: all 0.2s cubic-bezier(0.32, 0.72, 0, 1);
        -webkit-tap-highlight-color: transparent;
    }
    
    .invoice-card-item:active {
        transform: scale(0.98);
        background-color: var(--bb-bg-secondary);
    }
    
    .invoice-card-header {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        margin-bottom: 0.75rem;
    }
    
    .invoice-card-number {
        font-size: 1rem;
        font-weight: 600;
        color: var(--bb-primary);
        letter-spacing: -0.3px;
    }
    
    .invoice-card-amount {
        font-size: 1.125rem;
        font-weight: 700;
        color: var(--bb-text-primary);
        letter-spacing: -0.5px;
    }
    
    .invoice-card-customer {
        font-size: 0.9375rem;
        font-weight: 500;
        color: var(--bb-text-primary);
        margin-bottom: 0.25rem;
    }
    
    .invoice-card-customer-phone {
        font-size: 0.8125rem;
        color: var(--bb-text-secondary);
    }
    
    .invoice-card-dates {
        display: flex;
        gap: 1rem;
        margin: 0.75rem 0;
        padding: 0.75rem;
        background-color: var(--bb-bg-secondary);
        border-radius: 10px;
        font-size: 0.8125rem;
    }
    
    .invoice-card-date-item {
        flex: 1;
    }
    
    .invoice-card-date-label {
        color: var(--bb-text-muted);
        font-weight: 500;
        font-size: 0.75rem;
        text-transform: uppercase;
        letter-spacing: 0.3px;
    }
    
    .invoice-card-date-value {
        color: var(--bb-text-primary);
        font-weight: 600;
    }
    
    .invoice-card-date-value.overdue {
        color: var(--bb-danger);
    }
    
    .invoice-card-footer {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-top: 0.75rem;
        padding-top: 0.75rem;
        border-top: 1px solid var(--bb-border-light);
    }
    
    .invoice-card-status {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
    }
    
    .invoice-card-actions {
        display: flex;
        gap: 0.5rem;
    }
    
    .invoice-card-actions .btn {
        min-width: 40px;
        min-height: 40px;
        padding: 0.5rem;
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .invoice-card-actions .btn i {
        font-size: 1.125rem;
    }
}

@media (min-width: 992px) {
    .invoice-list-cards {
        display: none !important;
    }
}

/* ============ INVOICE DETAILS - MOBILE LAYOUT ============ */

@media (max-width: 991px) {
    /* Sticky summary panel at bottom on mobile - positioned above bottom nav */
    .invoice-summary-sticky {
        position: fixed;
        bottom: calc(var(--bottom-nav-height, 56px) + env(safe-area-inset-bottom, 0px));
        left: 0;
        right: 0;
        background-color: var(--bb-card-bg);
        border-top: 1px solid var(--bb-border-color);
        padding: 1rem;
        z-index: 1020;
        box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.1);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
    }
    
    .invoice-summary-sticky .summary-total {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 0.75rem;
    }
    
    .invoice-summary-sticky .summary-total-label {
        font-size: 0.9375rem;
        font-weight: 500;
        color: var(--bb-text-secondary);
    }
    
    .invoice-summary-sticky .summary-total-value {
        font-size: 1.5rem;
        font-weight: 700;
        color: var(--bb-primary);
        letter-spacing: -0.5px;
    }
    
    .invoice-summary-sticky .summary-actions {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
    
    .invoice-summary-sticky .btn {
        min-height: 48px;
        font-size: 0.9375rem;
        font-weight: 600;
        border-radius: 12px;
    }
    
    /* Add padding to content to account for sticky summary AND bottom nav */
    .invoice-detail-content {
        padding-bottom: calc(140px + var(--bottom-nav-height, 56px) + env(safe-area-inset-bottom)) !important;
    }
    
    /* Invoice header on mobile */
    .invoice-detail-header {
        padding: 1rem;
        background-color: var(--bb-card-bg);
        border-radius: 14px;
        margin-bottom: 1rem;
    }
    
    .invoice-detail-header .invoice-number {
        font-size: 1.25rem;
        font-weight: 700;
        color: var(--bb-text-primary);
        margin-bottom: 0.5rem;
    }
    
    .invoice-detail-header .invoice-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    /* Invoice items table mobile */
    .invoice-items-mobile {
        display: block;
    }
    
    .invoice-item-card {
        background-color: var(--bb-card-bg);
        border: 1px solid var(--bb-border-light);
        border-radius: 12px;
        padding: 1rem;
        margin-bottom: 0.75rem;
    }
    
    .invoice-item-service {
        font-size: 1rem;
        font-weight: 600;
        color: var(--bb-text-primary);
        margin-bottom: 0.25rem;
    }
    
    .invoice-item-description {
        font-size: 0.875rem;
        color: var(--bb-text-secondary);
        margin-bottom: 0.5rem;
    }
    
    .invoice-item-details {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
        padding: 0.75rem;
        background-color: var(--bb-bg-secondary);
        border-radius: 10px;
        margin-bottom: 0.5rem;
    }
    
    .invoice-item-detail {
        text-align: center;
    }
    
    .invoice-item-detail-label {
        font-size: 0.6875rem;
        font-weight: 600;
        color: var(--bb-text-muted);
        text-transform: uppercase;
        letter-spacing: 0.3px;
    }
    
    .invoice-item-detail-value {
        font-size: 0.9375rem;
        font-weight: 600;
        color: var(--bb-text-primary);
    }
    
    .invoice-item-total {
        display: flex;
        justify-content: flex-end;
        align-items: center;
        font-size: 1.125rem;
        font-weight: 700;
        color: var(--bb-primary);
    }
    
    /* Payment history mobile */
    .payment-history-mobile .payment-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 1rem;
        background-color: var(--bb-card-bg);
        border: 1px solid var(--bb-border-light);
        border-radius: 12px;
        margin-bottom: 0.75rem;
    }
    
    .payment-history-mobile .payment-info {
        flex: 1;
    }
    
    .payment-history-mobile .payment-date {
        font-size: 0.9375rem;
        font-weight: 600;
        color: var(--bb-text-primary);
    }
    
    .payment-history-mobile .payment-method {
        font-size: 0.8125rem;
        color: var(--bb-text-secondary);
    }
    
    .payment-history-mobile .payment-amount {
        font-size: 1.125rem;
        font-weight: 700;
        color: var(--bb-success);
    }
}

/* ============ INVOICE CREATE/EDIT - MOBILE LAYOUT ============ */

@media (max-width: 991px) {
    /* Form layout improvements */
    .invoice-form-section {
        background-color: var(--bb-card-bg);
        border-radius: 14px;
        padding: 1rem;
        margin-bottom: 1rem;
        border: 1px solid var(--bb-border-light);
    }
    
    .invoice-form-section-title {
        font-size: 1rem;
        font-weight: 600;
        color: var(--bb-text-primary);
        margin-bottom: 1rem;
        padding-bottom: 0.75rem;
        border-bottom: 1px solid var(--bb-border-light);
    }
    
    /* Customer selection mobile */
    .customer-selection-mobile {
        position: relative;
    }
    
    .customer-selection-mobile .dropdown-menu {
        max-height: 50vh;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        border-radius: 12px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    }
    
    .customer-selection-mobile .dropdown-item {
        padding: 0.875rem 1rem;
        border-bottom: 1px solid var(--bb-border-light);
    }
    
    .customer-selection-mobile .dropdown-item:last-child {
        border-bottom: none;
    }
    
    /* Line items mobile layout */
    .line-items-mobile {
        display: block;
    }
    
    .line-item-card {
        background-color: var(--bb-card-bg);
        border: 1px solid var(--bb-border-light);
        border-radius: 12px;
        padding: 1rem;
        margin-bottom: 0.75rem;
        position: relative;
    }
    
    .line-item-card-header {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        margin-bottom: 0.75rem;
    }
    
    .line-item-service-name {
        font-size: 1rem;
        font-weight: 600;
        color: var(--bb-text-primary);
        flex: 1;
        padding-right: 0.5rem;
    }
    
    .line-item-remove-btn {
        min-width: 36px;
        min-height: 36px;
        padding: 0.25rem;
        border-radius: 8px;
        color: var(--bb-danger) !important;
        border-color: var(--bb-danger) !important;
    }
    
    .line-item-inputs {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
        margin-bottom: 0.75rem;
    }
    
    .line-item-inputs .form-group {
        margin-bottom: 0;
    }
    
    .line-item-inputs .form-label {
        font-size: 0.75rem;
        font-weight: 600;
        color: var(--bb-text-muted);
        text-transform: uppercase;
        letter-spacing: 0.3px;
        margin-bottom: 0.25rem;
    }
    
    .line-item-inputs .form-control,
    .line-item-inputs .form-select {
        min-height: 44px;
        border-radius: 10px;
    }
    
    .line-item-total-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding-top: 0.75rem;
        border-top: 1px solid var(--bb-border-light);
    }
    
    .line-item-total-label {
        font-size: 0.875rem;
        font-weight: 500;
        color: var(--bb-text-secondary);
    }
    
    .line-item-total-value {
        font-size: 1.125rem;
        font-weight: 700;
        color: var(--bb-primary);
    }
    
    /* Add item button mobile */
    .add-item-btn-mobile {
        width: 100%;
        min-height: 50px;
        border: 2px dashed var(--bb-border-color);
        border-radius: 12px;
        background-color: transparent;
        color: var(--bb-primary);
        font-weight: 600;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        margin-bottom: 1rem;
        transition: all 0.2s ease;
    }
    
    .add-item-btn-mobile:hover,
    .add-item-btn-mobile:active {
        background-color: var(--bb-primary-subtle);
        border-color: var(--bb-primary);
    }
    
    /* Invoice totals mobile */
    .invoice-totals-mobile {
        background-color: var(--bb-card-bg);
        border: 1px solid var(--bb-border-light);
        border-radius: 14px;
        padding: 1rem;
        margin-top: 1rem;
    }
    
    .invoice-total-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.5rem 0;
    }
    
    .invoice-total-row.subtotal {
        padding-bottom: 0.75rem;
        margin-bottom: 0.5rem;
        border-bottom: 1px solid var(--bb-border-light);
    }
    
    .invoice-total-row.discount {
        color: var(--bb-success);
    }
    
    .invoice-total-row.grand-total {
        padding-top: 0.75rem;
        margin-top: 0.5rem;
        border-top: 2px solid var(--bb-primary);
    }
    
    .invoice-total-label {
        font-size: 0.9375rem;
        font-weight: 500;
        color: var(--bb-text-secondary);
    }
    
    .invoice-total-row.grand-total .invoice-total-label {
        font-size: 1rem;
        font-weight: 600;
        color: var(--bb-text-primary);
    }
    
    .invoice-total-value {
        font-size: 1rem;
        font-weight: 600;
    }
    
    .invoice-total-row.grand-total .invoice-total-value {
        font-size: 1.5rem;
        font-weight: 700;
        color: var(--bb-primary);
    }
    
    /* Discount section mobile */
    .discount-section-mobile {
        background-color: var(--bb-bg-secondary);
        border-radius: 12px;
        padding: 1rem;
        margin: 1rem 0;
    }
    
    .discount-section-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 0.75rem;
    }
    
    .discount-section-title {
        font-size: 0.9375rem;
        font-weight: 600;
        color: var(--bb-text-primary);
    }
    
    /* Date inputs mobile */
    .date-inputs-mobile {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
    
    .date-inputs-mobile input[type="date"] {
        min-height: 48px;
        border-radius: 10px;
        font-size: 16px !important; /* Prevent iOS zoom */
    }
    
    /* Form submit section mobile */
    .form-submit-section-mobile {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background-color: var(--bb-card-bg);
        border-top: 1px solid var(--bb-border-color);
        padding: 1rem;
        padding-bottom: max(1rem, env(safe-area-inset-bottom));
        z-index: 1030;
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
    }
    
    .form-submit-section-mobile .btn {
        min-height: 50px;
        font-size: 1rem;
        font-weight: 600;
        border-radius: 12px;
    }
    
    /* Account for fixed submit button */
    .invoice-form-content {
        padding-bottom: calc(100px + env(safe-area-inset-bottom)) !important;
    }
}

/* ============ PAYMENT HISTORY - MOBILE & DARK MODE ============ */

/* Payment History Card */
.payment-history-card .card-header {
    background-color: var(--bb-card-bg);
    border-bottom: 1px solid var(--bb-border-light);
}

[data-bs-theme=\"dark\"] .payment-history-card .card-header {
    background-color: var(--bb-bg-elevated);
    border-bottom-color: var(--bb-border-color);
}

/* Desktop Table Dark Mode */
[data-bs-theme=\"dark\"] .payment-history-table thead {
    background-color: var(--bb-bg-tertiary) !important;
}

[data-bs-theme=\"dark\"] .payment-history-table thead th {
    background-color: var(--bb-bg-tertiary) !important;
    color: var(--bb-text-secondary);
    border-bottom-color: var(--bb-border-color);
}

[data-bs-theme=\"dark\"] .payment-history-table tbody tr {
    border-bottom-color: var(--bb-border-color);
}

[data-bs-theme=\"dark\"] .payment-history-table tbody tr:hover {
    background-color: var(--bb-bg-secondary) !important;
}

[data-bs-theme=\"dark\"] .payment-history-table td {
    color: var(--bb-text-primary);
    border-bottom-color: var(--bb-border-color);
}

/* Mobile Payment History */
@media (max-width: 991px) {
    .payment-history-mobile {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    
    .payment-history-mobile .payment-item {
        background-color: var(--bb-card-bg, #1C1C1E);
        border: 1px solid var(--bb-border-light, rgba(255, 255, 255, 0.1));
        border-radius: 16px;
        padding: 16px;
        transition: all 0.2s ease;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }
    
    .payment-history-mobile .payment-item-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 12px;
        padding-bottom: 12px;
        border-bottom: 1px solid var(--bb-border-light, rgba(255, 255, 255, 0.08));
    }
    
    .payment-history-mobile .payment-date-badge {
        font-size: 0.875rem;
        font-weight: 600;
        color: var(--bb-text-primary, #fff);
        display: flex;
        align-items: center;
        gap: 6px;
    }
    
    .payment-history-mobile .payment-date-badge i {
        font-size: 1rem;
        color: var(--bb-primary, #007AFF);
    }
    
    .payment-history-mobile .payment-amount {
        font-size: 1.375rem;
        font-weight: 700;
        color: var(--bb-success, #34C759);
        letter-spacing: -0.5px;
    }
    
    .payment-history-mobile .payment-item-details {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        padding: 12px;
        background-color: var(--bb-bg-tertiary, rgba(255, 255, 255, 0.05));
        border-radius: 12px;
        margin-bottom: 8px;
    }
    
    .payment-history-mobile .payment-detail {
        display: flex;
        flex-direction: column;
        gap: 4px;
        min-width: 0;
        flex: 1;
    }
    
    .payment-history-mobile .payment-detail-label {
        font-size: 0.6875rem;
        font-weight: 700;
        color: var(--bb-text-muted, #8E8E93);
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }
    
    .payment-history-mobile .payment-detail .badge {
        font-size: 0.8125rem;
        padding: 6px 10px;
        border-radius: 8px;
        font-weight: 600;
    }
    
    .payment-history-mobile .payment-detail-value {
        font-size: 0.9375rem;
        font-weight: 500;
        color: var(--bb-text-primary, #fff);
    }
    
    .payment-history-mobile .payment-notes {
        font-size: 0.875rem;
        color: var(--bb-text-secondary, #8E8E93);
        padding: 10px 12px;
        background-color: var(--bb-bg-tertiary, rgba(255, 255, 255, 0.03));
        border-radius: 10px;
        margin-top: 8px;
        display: flex;
        align-items: flex-start;
        gap: 8px;
        line-height: 1.4;
    }
    
    .payment-history-mobile .payment-notes i {
        color: var(--bb-primary, #007AFF);
        font-size: 0.875rem;
        margin-top: 2px;
        flex-shrink: 0;
    }
    
    .payment-history-mobile .payment-deposit-badge {
        margin-top: 10px;
    }
    
    .payment-history-mobile .payment-deposit-badge .badge {
        font-size: 0.8125rem;
        padding: 6px 12px;
        border-radius: 20px;
    }
    
    /* Payment Reference Button */
    .payment-history-mobile .payment-reference-collapsible {
        flex-direction: row;
        align-items: center;
        gap: 8px;
        flex: 0 0 auto;
    }
    
    .payment-history-mobile .payment-reference-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 8px 14px;
        background-color: var(--bb-bg-tertiary, rgba(255, 255, 255, 0.08));
        border: 1px solid var(--bb-border-light, rgba(255, 255, 255, 0.1));
        border-radius: 10px;
        color: var(--bb-text-primary, #fff);
        font-size: 0.875rem;
        font-weight: 500;
        cursor: pointer;
        transition: all 0.2s ease;
        -webkit-tap-highlight-color: transparent;
        min-height: 36px;
        gap: 4px;
    }
    
    .payment-history-mobile .payment-reference-btn:hover,
    .payment-history-mobile .payment-reference-btn:active {
        background-color: var(--bb-primary, #007AFF);
        border-color: var(--bb-primary, #007AFF);
        color: #fff;
        transform: scale(0.98);
    }
    
    .payment-history-mobile .payment-reference-btn i {
        font-size: 0.9375rem;
    }
    
    .payment-history-mobile .payment-reference-btn i.bi-three-dots {
        font-size: 1rem;
    }
    
    /* Payment Summary */
    .payment-summary-mobile {
        background: linear-gradient(135deg, var(--bb-success, #34C759), #2a9d4a);
        border-radius: 14px;
        padding: 16px 20px;
        margin-top: 12px;
    }
    
    .payment-summary-mobile .payment-summary-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    
    .payment-summary-mobile .payment-summary-label {
        font-size: 0.9375rem;
        font-weight: 600;
        color: rgba(255, 255, 255, 0.9);
    }
    
    .payment-summary-mobile .payment-summary-value {
        font-size: 1.375rem;
        font-weight: 700;
        color: #fff;
    }
}

/* Payment History Dark Mode - Mobile */
[data-bs-theme="dark"] .payment-history-mobile .payment-item {
    background-color: var(--bb-bg-elevated, #1C1C1E);
    border-color: var(--bb-border-color, rgba(255, 255, 255, 0.1));
}

[data-bs-theme="dark"] .payment-history-mobile .payment-item-details {
    background-color: var(--bb-bg-tertiary, rgba(255, 255, 255, 0.05));
}

[data-bs-theme="dark"] .payment-history-mobile .payment-notes {
    background-color: var(--bb-bg-tertiary, rgba(255, 255, 255, 0.03));
}

[data-bs-theme="dark"] .payment-summary-mobile {
    background: linear-gradient(135deg, var(--bb-success, #30D158), #28a745);
}

/* Payment Reference Button Dark Mode */
[data-bs-theme=\"dark\"] .payment-history-mobile .payment-reference-btn {
    background-color: var(--bb-bg-tertiary);
    border-color: var(--bb-border-color);
    color: var(--bb-text-secondary);
}

[data-bs-theme=\"dark\"] .payment-history-mobile .payment-reference-btn:hover,
[data-bs-theme=\"dark\"] .payment-history-mobile .payment-reference-btn:active {
    background-color: var(--bb-primary);
    border-color: var(--bb-primary);
    color: #fff;
}

/* System preference dark mode */
@media (prefers-color-scheme: dark) {
    :root:not([data-bs-theme=\"light\"]) .payment-history-card .card-header {
        background-color: var(--bb-bg-elevated);
        border-bottom-color: var(--bb-border-color);
    }
    
    :root:not([data-bs-theme=\"light\"]) .payment-history-table thead {
        background-color: var(--bb-bg-tertiary) !important;
    }
    
    :root:not([data-bs-theme=\"light\"]) .payment-history-table thead th {
        background-color: var(--bb-bg-tertiary) !important;
        color: var(--bb-text-secondary);
        border-bottom-color: var(--bb-border-color);
    }
    
    :root:not([data-bs-theme=\"light\"]) .payment-history-table tbody tr {
        border-bottom-color: var(--bb-border-color);
    }
    
    :root:not([data-bs-theme=\"light\"]) .payment-history-table tbody tr:hover {
        background-color: var(--bb-bg-secondary) !important;
    }
    
    :root:not([data-bs-theme=\"light\"]) .payment-history-table td {
        color: var(--bb-text-primary);
        border-bottom-color: var(--bb-border-color);
    }
    
    :root:not([data-bs-theme=\"light\"]) .payment-history-mobile .payment-item {
        background-color: var(--bb-bg-elevated);
        border-color: var(--bb-border-color);
    }
    
    :root:not([data-bs-theme=\"light\"]) .payment-history-mobile .payment-item-details {
        background-color: var(--bb-bg-tertiary);
    }
    
    :root:not([data-bs-theme=\"light\"]) .payment-history-mobile .payment-notes {
        border-top-color: var(--bb-border-color);
    }
    
    :root:not([data-bs-theme=\"light\"]) .payment-summary-mobile {
        background-color: var(--bb-bg-secondary);
        border: 1px solid var(--bb-border-color);
    }
}

/* Stripe purple badge */
.bg-purple {
    background-color: #6772e5 !important;
    color: #fff !important;
}

/* ============ PAYMENT MODAL - MOBILE OPTIMIZED (iOS Bottom Sheet Style) ============ */

@media (max-width: 576px) {
    /* Transform modals into iOS-style bottom sheets on mobile */
    #paymentModal.modal,
    #emailInvoiceModal.modal,
    #copyLinkModal.modal {
        align-items: flex-end !important;
    }
    
    #paymentModal .modal-dialog,
    #emailInvoiceModal .modal-dialog,
    #copyLinkModal .modal-dialog {
        margin: 0;
        max-width: 100%;
        width: 100%;
        transform: translateY(100%);
        transition: transform 0.3s cubic-bezier(0.32, 0.72, 0, 1) !important;
    }
    
    #paymentModal.show .modal-dialog,
    #emailInvoiceModal.show .modal-dialog,
    #copyLinkModal.show .modal-dialog {
        transform: translateY(0);
    }
    
    #paymentModal .modal-content,
    #emailInvoiceModal .modal-content,
    #copyLinkModal .modal-content {
        border-radius: 20px 20px 0 0;
        border: none;
        max-height: 90vh;
        display: flex;
        flex-direction: column;
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    }
    
    /* iOS-style drag handle */
    .modal-drag-handle {
        display: flex;
        justify-content: center;
        padding: 12px 0 4px;
        background: inherit;
        border-radius: 20px 20px 0 0;
    }
    
    .drag-handle-bar {
        width: 36px;
        height: 5px;
        background: var(--bb-text-muted, #8E8E93);
        border-radius: 3px;
        opacity: 0.4;
    }
    
    #paymentModal .modal-header,
    #emailInvoiceModal .modal-header,
    #copyLinkModal .modal-header {
        padding: 12px 20px 16px;
        border-bottom: 1px solid var(--bb-border-color, rgba(0, 0, 0, 0.1));
        background: transparent;
        border-radius: 0;
        flex-shrink: 0;
    }
    
    #paymentModal .modal-header .modal-title,
    #emailInvoiceModal .modal-header .modal-title,
    #copyLinkModal .modal-header .modal-title {
        font-size: 1.125rem;
        font-weight: 600;
    }
    
    [data-bs-theme="dark"] #paymentModal .modal-header,
    [data-bs-theme="dark"] #emailInvoiceModal .modal-header,
    [data-bs-theme="dark"] #copyLinkModal .modal-header {
        border-bottom-color: rgba(255, 255, 255, 0.1);
    }
    
    #paymentModal .modal-body,
    #emailInvoiceModal .modal-body,
    #copyLinkModal .modal-body {
        flex: 1;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        padding: 16px 20px;
    }
    
    #paymentModal .modal-footer,
    #emailInvoiceModal .modal-footer,
    #copyLinkModal .modal-footer {
        padding: 16px 20px;
        padding-bottom: max(16px, calc(16px + env(safe-area-inset-bottom)));
        border-top: 1px solid var(--bb-border-color, rgba(0, 0, 0, 0.1));
        gap: 12px;
        flex-shrink: 0;
        display: flex;
    }
    
    [data-bs-theme="dark"] #paymentModal .modal-footer,
    [data-bs-theme="dark"] #emailInvoiceModal .modal-footer,
    [data-bs-theme="dark"] #copyLinkModal .modal-footer {
        border-top-color: rgba(255, 255, 255, 0.1);
    }
    
    #paymentModal .modal-footer .btn,
    #emailInvoiceModal .modal-footer .btn,
    #copyLinkModal .modal-footer .btn {
        flex: 1;
        min-height: 50px;
        border-radius: 12px;
        font-weight: 600;
        font-size: 17px;
    }
    
    #paymentModal .form-control,
    #paymentModal .form-select,
    #emailInvoiceModal .form-control,
    #emailInvoiceModal .form-select {
        min-height: 50px;
        border-radius: 10px;
        font-size: 16px !important;
    }
    
    #paymentModal .input-group-text {
        min-height: 50px;
        border-radius: 10px 0 0 10px;
    }
    
    #paymentModal .input-group .form-control {
        border-radius: 0 10px 10px 0;
    }
    
    /* Invoice Preview Card in Email Modal */
    .invoice-preview-card {
        display: flex;
        align-items: center;
        gap: 14px;
        padding: 14px 16px;
        background: linear-gradient(135deg, var(--bb-primary, #007AFF), #0056b3);
        border-radius: 14px;
        color: #fff;
    }
    
    .invoice-preview-icon {
        width: 44px;
        height: 44px;
        background: rgba(255, 255, 255, 0.2);
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.25rem;
        flex-shrink: 0;
    }
    
    .invoice-preview-info {
        flex: 1;
        min-width: 0;
        display: flex;
        flex-direction: column;
        gap: 2px;
    }
    
    .invoice-preview-info strong {
        font-size: 1rem;
        font-weight: 600;
    }
    
    .invoice-preview-detail {
        font-size: 0.875rem;
        opacity: 0.85;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .invoice-preview-amount {
        font-size: 1.25rem;
        font-weight: 700;
        flex-shrink: 0;
    }
    
    /* Share Link Container */
    .share-link-container .form-label {
        font-size: 0.9375rem;
        margin-bottom: 10px;
    }
    
    .share-link-container .input-group {
        border-radius: 12px;
        overflow: hidden;
    }
    
    .share-link-container .form-control {
        min-height: 50px;
        border-radius: 12px 0 0 12px !important;
        font-size: 14px !important;
        background-color: var(--bb-bg-tertiary, rgba(255, 255, 255, 0.05));
        border: 1px solid var(--bb-border-color, rgba(255, 255, 255, 0.1));
        color: var(--bb-text-primary, #fff);
    }
    
    .share-link-container .input-group .btn {
        min-height: 50px;
        min-width: 50px;
        border-radius: 0 12px 12px 0 !important;
        font-size: 1.125rem;
    }
    
    #copyLinkModal .form-control,
    #copyLinkModal .form-select {
        min-height: 50px;
        border-radius: 10px;
        font-size: 16px !important;
    }
}

/* ============ DARK MODE SPECIFIC STYLES ============ */

[data-bs-theme="dark"] .invoice-card-item,
[data-bs-theme="dark"] .invoice-item-card,
[data-bs-theme="dark"] .line-item-card,
[data-bs-theme="dark"] .payment-history-mobile .payment-item {
    background-color: var(--bb-bg-elevated);
    border-color: var(--bb-border-color);
}

[data-bs-theme="dark"] .invoice-card-dates,
[data-bs-theme="dark"] .invoice-item-details,
[data-bs-theme="dark"] .discount-section-mobile {
    background-color: var(--bb-bg-tertiary);
}

[data-bs-theme="dark"] .invoice-summary-sticky,
[data-bs-theme="dark"] .form-submit-section-mobile {
    background-color: rgba(28, 28, 30, 0.92);
    backdrop-filter: blur(40px) saturate(180%);
    -webkit-backdrop-filter: blur(40px) saturate(180%);
    border-top-color: var(--bb-border-color);
}

[data-bs-theme="dark"] .add-item-btn-mobile {
    border-color: var(--bb-border-color);
}

[data-bs-theme="dark"] .add-item-btn-mobile:hover,
[data-bs-theme="dark"] .add-item-btn-mobile:active {
    background-color: var(--bb-bg-tertiary);
}

/* System preference dark mode */
@media (prefers-color-scheme: dark) {
    :root:not([data-bs-theme="light"]) .invoice-card-item,
    :root:not([data-bs-theme="light"]) .invoice-item-card,
    :root:not([data-bs-theme="light"]) .line-item-card,
    :root:not([data-bs-theme="light"]) .payment-history-mobile .payment-item {
        background-color: var(--bb-bg-elevated);
        border-color: var(--bb-border-color);
    }
    
    :root:not([data-bs-theme="light"]) .invoice-card-dates,
    :root:not([data-bs-theme="light"]) .invoice-item-details,
    :root:not([data-bs-theme="light"]) .discount-section-mobile {
        background-color: var(--bb-bg-tertiary);
    }
    
    :root:not([data-bs-theme="light"]) .invoice-summary-sticky,
    :root:not([data-bs-theme="light"]) .form-submit-section-mobile {
        background-color: rgba(28, 28, 30, 0.92);
        backdrop-filter: blur(40px) saturate(180%);
        -webkit-backdrop-filter: blur(40px) saturate(180%);
        border-top-color: var(--bb-border-color);
    }
    
    :root:not([data-bs-theme="light"]) .add-item-btn-mobile {
        border-color: var(--bb-border-color);
    }
    
    :root:not([data-bs-theme="light"]) .add-item-btn-mobile:hover,
    :root:not([data-bs-theme="light"]) .add-item-btn-mobile:active {
        background-color: var(--bb-bg-tertiary);
    }
}

/* ============ iOS SPECIFIC ENHANCEMENTS ============ */

/* iOS date input styling */
.platform-ios input[type="date"] {
    -webkit-appearance: none;
    appearance: none;
    background-color: var(--bb-input-bg);
    border: 1px solid var(--bb-input-border);
    border-radius: 10px;
    padding: 0.75rem;
    font-size: 16px;
    min-height: 48px;
    color: var(--bb-text-primary);
}

.platform-ios input[type="date"]::-webkit-date-and-time-value {
    text-align: left;
}

/* iOS scroll improvements */
.platform-ios .invoice-list-cards,
.platform-ios .invoice-items-mobile,
.platform-ios .line-items-mobile {
    -webkit-overflow-scrolling: touch;
}

/* iOS touch feedback */
.platform-ios .invoice-card-item:active,
.platform-ios .invoice-item-card:active,
.platform-ios .line-item-card:active {
    background-color: var(--bb-bg-secondary);
    transition: background-color 0.1s ease;
}

/* PWA mode adjustments */
.pwa-mode .invoice-summary-sticky,
.pwa-mode .form-submit-section-mobile {
    padding-bottom: max(1.25rem, env(safe-area-inset-bottom)) !important;
}

.pwa-mode .invoice-detail-content,
.pwa-mode .invoice-form-content {
    padding-bottom: calc(160px + env(safe-area-inset-bottom)) !important;
}

/* ============ BREADCRUMB MOBILE STYLES ============ */

@media (max-width: 576px) {
    .breadcrumb {
        font-size: 0.8125rem;
        margin-bottom: 0.75rem;
        flex-wrap: nowrap;
        overflow-x: auto;
        white-space: nowrap;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 0.25rem;
    }
    
    .breadcrumb::-webkit-scrollbar {
        display: none;
    }
    
    .breadcrumb-item + .breadcrumb-item::before {
        padding-right: 0.25rem;
        padding-left: 0.25rem;
    }
}

/* ============ ACTION BUTTON MOBILE STYLES ============ */

@media (max-width: 576px) {
    /* Stack header actions vertically */
    .invoice-header-actions {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
        width: 100%;
        margin-top: 1rem;
    }
    
    .invoice-header-actions .btn-group {
        width: 100%;
    }
    
    .invoice-header-actions .btn {
        flex: 1;
        min-height: 44px;
        font-size: 0.875rem;
    }
    
    /* Quick action grid */
    .invoice-quick-actions {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
        padding: 1rem;
    }
    
    .invoice-quick-action {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding: 1rem;
        background-color: var(--bb-card-bg);
        border: 1px solid var(--bb-border-light);
        border-radius: 14px;
        min-height: 80px;
        transition: all 0.2s ease;
        text-decoration: none;
        color: var(--bb-text-primary);
    }
    
    .invoice-quick-action:active {
        transform: scale(0.96);
        background-color: var(--bb-bg-secondary);
    }
    
    .invoice-quick-action i {
        font-size: 1.5rem;
        margin-bottom: 0.5rem;
        color: var(--bb-primary);
    }
    
    .invoice-quick-action span {
        font-size: 0.8125rem;
        font-weight: 600;
        text-align: center;
    }
}

/* ============ ACCESSIBILITY IMPROVEMENTS ============ */

/* Ensure proper focus visibility */
.invoice-card-item:focus-visible,
.invoice-item-card:focus-visible,
.line-item-card:focus-visible {
    outline: 2px solid var(--bb-primary);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .invoice-card-item,
    .invoice-item-card,
    .line-item-card {
        border-width: 2px;
    }
    
    .invoice-card-number,
    .invoice-item-service,
    .line-item-service-name {
        font-weight: 700;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .invoice-card-item,
    .invoice-item-card,
    .line-item-card,
    .invoice-stat-card {
        transition: none;
    }
}